The DOI matches its Crossref record; 154 of the 156 references it cites were found in a registry or an index; none of the 261 sources its claims cite is checked for support yet.
The Aging Epigenome
Open accessAbstract
During aging, the mechanisms that normally maintain health and stress resistance strikingly decline, resulting in decrepitude, frailty, and ultimately death. Exactly when and how this decline occurs is unknown. Changes in transcriptional networks and chromatin state lie at the heart of age-dependent decline. These epigenomic changes are not only observed during aging but also profoundly affect cellular function and stress resistance, thereby contributing to the progression of aging. We propose that the dysregulation of transcriptional and chromatin networks is a crucial component of aging. Understanding age-dependent epigenomic changes will yield key insights into how aging begins and progresses and should lead to the development of new therapeutics that delay or even reverse aging and age-related diseases.
Overview
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
0 of 261 cited sources checked · 0 supported · 0 flagged
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Changes in transcriptional networks and chromatin state lie at the heart of age-dependent decline.”
§ The Aging Epigenome > Abstract
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes? Based: unclear- Rests on an assumption: Aging involves progressive functional decline across molecular, cellular, tissue, and organismal levels.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“We propose that the dysregulation of transcriptional and chromatin networks is a crucial component of aging.”
§ The Aging Epigenome > Abstract
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passes- Rests on an assumption: Aging involves progressive functional decline across molecular, cellular, tissue, and organismal levels.
In the paper
“Indeed, allele variants at the FOXO3 locus are associated with extreme longevity (centenarians) in humans (for example, Willcox et al., 2008).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Transcription Factors
What the sources say
- Not checked yetcites Willcox et al., 2008 source
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“Indeed, gene expression has been shown to change drastically during aging (for example, Baumgart et al., 2014; Budovskaya et al., 2008; Zahn et al., 2007).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape
What the sources say
Strength:boosted· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“Changes in gene regulation (often through expression of a single transcription factor) have been shown to be key for cellular identity.”
§ The Aging Epigenome > Introduction
What the sources say
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“The activity of FOXO/DAF-16 is positively and negatively regulated by different molecular players (e.g., the insulin/IGF signaling pathway and the nutrient sensor AMPK) and stresses (e.g., oxidative and heat stress) (Eijkelenboom and Burgering, 2013; Salih and Brunet, 2008).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Transcription Factors
What the sources say
- Not checked yetcites Eijkelenboom and Burgering, 2013
- Not checked yetcites Salih and Brunet, 2008
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesThe paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“While it is clear that aging is associated with dysfunction at each layer of the gene regulatory landscape, it is relatively unknown which aspect of gene regulation is the first to become dysregulated during lifespan.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“This interaction is required for the longevity-promoting action of DAF-16 (Riedel et al., 2013).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Transcription Factors
What the sources say
- Not checked yetcites Riedel et al., 2013 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Second, age-associated changes in the activity of transcription factors could promote changes in other epigenomic regulatory layers. This can happen by either altering the expression of chromatin-modifying enzymes and complexes (e.g., histone methyltransferases or nucleosome remodelers) or by the differential recruitment of these enzymes and complexes.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Transcription Factors
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“Meta-analysis of the adult FOXO/DAF-16 transcription regulatory networks in human, mouse, Drosophila, and C. elegans has shown that FOXO/DAF-16 controls the expression of many genes, including those involved in stress response, metabolism, proteostasis, immunity, and neuronal function (Webb et al., 2016).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Transcription Factors
What the sources say
- Not checked yetcites Webb et al., 2016 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“Consistent with a role in the progression of aging, the activity of NRF/SKN-1 is dysregulated late in life (Rahman et al., 2013).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Transcription Factors
What the sources say
- Not checked yetcites Rahman et al., 2013 source
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“First, reduced levels of a pro-longevity transcription factor can lead to a loss of stress resistance and cellular protection due to decreased expression of stress-resistance genes.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Transcription Factors
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes? Based: unclearIn the paper
“Interestingly, the patterning of these marks in the genome changes during aging (Benayoun et al., 2015) (Figure 2).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
What the sources say
- Not checked yetcites Benayoun et al., 2015 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“Furthermore, in C. elegans, DAF-16 recruits the chromatin remodeler SWI/SNF to activate expression of age-related and stress-response genes including heat shock proteins and oxidative stress-response genes (Riedel et al., 2013).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Transcription Factors
What the sources say
- Not checked yetcites Riedel et al., 2013 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Together, these studies identify FOXO/DAF-16 as a key regulatory hub that integrates diverse signals into the control of the chromatin landscape and the expression of genes important for longevity.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Transcription Factors
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“Interestingly, the DNA-binding ability of the NRF/SKN-1 proteins in cultured embryonic stem cells appears to be sensitive to DNA methylation (Domcke et al., 2015).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Transcription Factors
What the sources say
- Not checked yetcites Domcke et al., 2015 source
Strength:hedged· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“Different enzymes that affect H3K27me3, a repressive histone mark, have opposing effects on lifespan.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
What the sources say
- Not checked yetcites Jin et al., 2011 source
- Not checked yetcites Labbadia and Morimoto, 2015
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“In response to elevated levels of reactive oxygen species (ROS) and environmental toxins or to nutrient and metabolic changes through mTOR signaling and insulin/IGF signaling, NRF/SKN-1 activates the expression of genes involved in cellular protection (Blackwell et al., 2015; Tebay et al., 2015).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Transcription Factors
What the sources say
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Thus, changes in the deposition of H3K36me3 appear to play an important role in the regulation of transcription during aging.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“Interestingly, H3K4me3 domains vary in breadth in a locus- and cell-type-specific manner (Benayoun et al., 2014; Chen et al., 2015), and these differences could provide clues about the context-dependent roles of this mark during aging.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
What the sources say
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“Like the H3K27me3 modifiers, knockdown of the H3K4me3 enzymes has been shown to both increase and decrease lifespan, depending on the specific enzyme or context.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
What the sources say
- Not checked yetcites Greer et al., 2010 source
- Not checked yetcites Li et al., 2010
- Not checked yetcites Ni et al., 2012
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“In addition, cultured senescent human lung fibroblasts have large-scale gains and losses of H3K27me3 compared to early-passage, proliferating cells (Shah et al., 2013).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
What the sources say
- Not checked yetcites Shah et al., 2013 source
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“H3K4me3-modifying enzymes have also been shown to have long-lasting, transgenerational effects on C. elegans lifespan (Greer et al., 2011, 2016).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
What the sources say
- Not matchedcites Greer et al., 2011, 2016
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
Strength:boosted· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passes- Not matched
None of the sources cited for this claim have been checked yet.
In the paper
“Interestingly, age-associated changes in global H3K27me3 levels are also context dependent.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
What the sources say
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Together, these studies suggest that, like H3K27me3-modifying enzymes, H3K4me3-modifying enzymes can both promote and inhibit longevity, likely depending on environmental context and specific loci.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“Consistent with the idea that loss of H3K4me3 is beneficial to longevity, knockdown of the H3K4me3 demethylase KDM5B/RBR-2 in C. elegans hermaphrodites and Drosophila males shortens lifespan (Greer et al., 2010; Li et al., 2010).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
What the sources say
- Not checked yetcites Greer et al., 2010 source
- Not checked yetcites Li et al., 2010
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“In yeast, loss of H3K36 trimethylation (a mark of transcription elongation) is correlated with a shorter lifespan (Sen et al., 2015).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
What the sources say
- Not checked yetcites Sen et al., 2015 source
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“In C. elegans, knockdown of the H3K4 methyltransferase SETD1A/SET-2 increases lifespan (Greer et al., 2010).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
What the sources say
- Not checked yetcites Greer et al., 2010 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Thus, changes in the activity of chromatin modifiers (including Polycomb repressive complex) may occur first during aging and be followed by DNA methylation changes.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > DNA Methylation
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passes- The authors state this as an assumption: A model for normal DNA methylation patterning holds that H3K27 methylation repression occurs first and is then locked in by DNA methyltransferases.
In the paper
“DNA damage appears to be a contributor to heterochromatin loss (Oberdoerffer and Sinclair, 2007) and is discussed in the next section of the review.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Chromatin Structure
What the sources say
- Not checked yetcites Oberdoerffer and Sinclair, 2007 source
Strength:hedged· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“Interestingly, with increased age, there is a loss of H19 lncRNA-mediated repression of the Igf2 locus in mice (Fu et al., 2008).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Non-coding RNAs
What the sources say
- Not checked yetcites Fu et al., 2008
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“Surprisingly, several genome-wide studies have not found a correlation between age-dependent differential DNA methylation and altered gene expression (Beerman et al., 2013; Yuan et al., 2015).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > DNA Methylation
What the sources say
Load-bearingStrength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“For example, age-associated DNA hypermethylation of some transcription factor binding sites (Avrahami et al., 2015; Sun et al., 2014; Yuan et al., 2015) suggests that the ability of these proteins to bind DNA and regulate transcription could be disrupted.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > DNA Methylation
What the sources say
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“This suggests that an altered chromatin state at specific loci (the histone genes) may precede the reduction of nucleosome occupancy during aging.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Chromatin Structure
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“Interestingly, studies in stem cells have also demonstrated that loci with age-associated DNA hypermethylation are enriched for genes normally repressed by Polycomb repressive complex, the complex that methylates H3K27 (Beerman et al., 2013; Sun et al., 2014; Teschendorff et al., 2010).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > DNA Methylation
What the sources say
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“Quiescence is key to maintaining this stem cell population, and the loss of H19-mediated repression of Igf2 leads to hematopoietic stem cell exhaustion (Venkatraman et al., 2013).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Non-coding RNAs
What the sources say
- Not checked yetcites Venkatraman et al., 2013 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“These data suggest the exciting possibility that changes driven by lncRNAs could play an important role in the progression of aging.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Non-coding RNAs
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“Furthermore, H19-mediated repression of Igf2 has been demonstrated to be important for the maintenance of hematopoietic stem cell quiescence (Venkatraman et al., 2013).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Non-coding RNAs
What the sources say
- Not checked yetcites Venkatraman et al., 2013 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Thus, there is a link between defects in the nuclear lamin, loss of heterochromatin, and aging.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Chromatin Structure
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“FOXA2 is a pioneer transcription factor (Zaret and Carroll, 2011), and therefore, the age-dependent increase in FOXA2 binding likely causes the eviction of nucleosomes from these regions.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Chromatin Structure
What the sources say
- Not checked yetcites Zaret and Carroll, 2011 source
Strength:hedged· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“This lncRNA interacts with MBD1 (a methyl-CpG-binding domain protein) to repress the expression of several genes, including a gene likely to have implications for aging—Igf2, which encodes an insulin-like growth factor (Monnier et al., 2013).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Non-coding RNAs
What the sources say
- Not checked yetcites Monnier et al., 2013 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“the chromatin at transposable elements (Alu, L1, and SVA) becomes more open (De Cecco et al., 2013).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
What the sources say
- Not checked yetcites De Cecco et al., 2013 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“In human cells, loss of SIRT6, an H3K9 deacetylase that silences telomeres, causes telomere dysfunction and premature cellular senescence (Michishita et al., 2008).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
What the sources say
- Not checked yetcites Michishita et al., 2008 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“Reduced DNA methylation (hypomethylation) in mice increases the risk of aneuploidy and cancer (Gaudet et al., 2003)”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
What the sources say
- Not checked yetcites Gaudet et al., 2003 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“DNA methylation and heterochromatin help to maintain transposons in an inactive state (Slotkin and Martienssen, 2007).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
What the sources say
- Not checked yetcites Slotkin and Martienssen, 2007
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“For example, 5-methyl cytosine is inherently more mutagenic than its non-methylated counterpart because if it is deaminated, the base excision repair machinery replaces the nucleotide with a thymine, resulting in a C-to-T mutation (Schmutte et al., 1995).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
What the sources say
- Not checked yetcites Schmutte et al., 1995
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“These data suggest that altered chromatin states during aging may precede and cause age-associated telomere dysfunction.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Together, these studies suggest that age-associated epigenomic changes may trigger transposon activation during aging.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Thus, epigenomic changes and telomere dysfunction may feedback and reinforce each other during aging.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“Communication between mitochondria and the nuclear regulatory genome plays an important role in the progression of aging.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Mitochondria
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“Furthermore, increasing the level of Sir2 in yeast increases lifespan (Kaeberlein et al., 1999).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
What the sources say
- Not checked yetcites Kaeberlein et al., 1999 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“patients with progeria diseases have an abnormally high rate of chromosome rearrangements and abnormalities (Vijg and Suh, 2013).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
What the sources say
- Not checked yetcites Vijg and Suh, 2013
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“suggesting that the observed age-associated DNA hypomethylation could contribute to chromosome instability with age.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“age-associated transposon activation could be triggered by epigenomic changes during aging.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“in Drosophila, this may be directly linked to age-dependent memory decline and mortality (Li et al., 2013).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
What the sources say
- Not checked yetcites Li et al., 2013
Strength:hedged· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“With age, the expression of transposons increases”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
What the sources say
- Not checked yetcites Li et al., 2013
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“In several species, there is an age-associated accumulation of mutations at varying frequencies depending on the species and rearing conditions (reviewed by Vijg and Suh, 2013).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
What the sources say
- Not checked yetcites Vijg and Suh, 2013
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“Aneuploidies and large-scale chromosomal rearrangements have an increased incidence with age (reviewed by Vijg and Suh, 2013).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
What the sources say
- Not checked yetcites Vijg and Suh, 2013
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“the expression of these repetitive DNA elements also increases in senescent cells (De Cecco et al., 2013).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
What the sources say
- Not checked yetcites De Cecco et al., 2013 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“This global repression of chromatin is important to allow the specific upregulation of mitochondrial stress-response genes and lifespan extension (Tian et al., 2016).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Mitochondria
What the sources say
- Not checked yetcites Tian et al., 2016 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“In worms, lifespan extension through knockdown of an electron transport chain component is dependent on a complex mitochondria-responsive transcription regulatory program that includes the ROS-sensitive transcription factors NRF2/SKN-1 and p53/CEP-1 (Chang et al., 2015).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Mitochondria
What the sources say
- Not checked yetcites Chang et al., 2015 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“Induction of the UPRER results in many transcriptional changes through the activation of the transcription regulators XBP1, NFκB, and ATF4 (Taylor, 2016).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Proteostasis
What the sources say
- Not checked yetcites Taylor, 2016 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“an increase in the amount of the repressive histone mark H3K27me3 at specific stress-response genes in C. elegans has been shown to lead to a loss of stress resistance and proteostasis (Labbadia and Morimoto, 2015).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Proteostasis
What the sources say
- Not checked yetcites Labbadia and Morimoto, 2015
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“changes in H3K4me2/3 deposition with age (Sun et al., 2014; Wood et al., 2010) may alter the ability of the H3K4me2/3 demethylase KDM5/RBR-2 to activate the transcription of key mitochondrial genes (Liu and Secombe, 2015).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Mitochondria
What the sources say
Strength:hedged· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“changes in the methylation of H3K9 and H3K27 have recently been found to be important for the induction of genes involved in the UPRmt in C. elegans, mice, and human cells (Merkwirth et al., 2016; Tian et al., 2016).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Proteostasis
What the sources say
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“nuclear-mitochondrial communication is also a key determinant of longevity in animals (Chang et al., 2015; Gomes et al., 2013).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Mitochondria
What the sources say
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“Once present in the nucleus, ATFS-1 regulates the expression of many genes, including genes important for proteostasis, detoxification, and metabolism (reviewed by Schulz and Haynes, 2015).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Proteostasis
What the sources say
- Not checked yetcites Schulz and Haynes, 2015
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“ROS signals from the mitochondria can also impact chromatin-mediated silencing in yeast (Schroeder et al., 2013).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Mitochondria
What the sources say
- Not checked yetcites Schroeder et al., 2013 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“dysregulation of FOXO/DAF-16 with age can disrupt proteostasis.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Proteostasis
Strength:plain· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“In aged mice, loss of SIRT1 activity (via a decline in NAD+ levels) leads to increased activity of the HIF-1α transcription factor that is linked with age-associated mitochondrial dysfunction and changes in oxidative phosphorylation (Gomes et al., 2013).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Mitochondria
What the sources say
- Not checked yetcites Gomes et al., 2013 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“In mammals, the transcription factor CHOP mediates the UPRmt gene expression changes in response to unfolded proteins in the mitochondria (Schulz and Haynes, 2015)”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Proteostasis
What the sources say
- Not checked yetcites Schulz and Haynes, 2015
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“the FOXO/DAF-16 transcription factor controls the expression of many genes important for maintenance of a healthy proteome (Webb et al., 2016)”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Proteostasis
What the sources say
- Not checked yetcites Webb et al., 2016 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Together, these studies show that changes in the efficiency or activity of mitochondria with age can result in epigenomic changes that alter lifespan.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Mitochondria
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Together, these studies and others support the idea that communication between nuclear gene regulatory mechanisms and mitochondria contributes to the progression of aging.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Mitochondria
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“in C. elegans, mitochondrial dysfunction results in increased H3K9 methylation and global compaction of chromatin.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Mitochondria
What the sources say
- Not checked yetcites Tian et al., 2016 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“changes in the activity of the transcription activator PGC-1α with age contribute to the loss of mitochondrial biogenesis and function (Rera et al., 2011; Sun et al., 2016).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Mitochondria
What the sources say
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“In invertebrates and mammals, the transcription factor HSF1 activates expression of protein-folding chaperones in response to elevated levels of unfolded proteins (Labbadia and Morimoto, 2014; Mahat et al., 2016).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Proteostasis
What the sources say
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“Thus, changes in the expression of histone-modifying enzymes and the downstream effect on chromatin state and gene expression can shape the ability of cells and animals to withstand stress early during aging (Labbadia and Morimoto, 2015).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Proteostasis
What the sources say
- Not checked yetcites Labbadia and Morimoto, 2015
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“In C. elegans, the UPRmt is activated primarily by a change in the subcellular localization (from the mitochondria to the nucleus) of the transcription factor ATFS-1.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Proteostasis
What the sources say
- Not checked yetcites Schulz and Haynes, 2015
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Together, these studies provide strong evidence that links epigenomic changes with senescence.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Cellular Changes: Senescence and Stem Cell Exhaustion
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“loss of REST activity during early Alzheimer’s disease was associated with a global gain of the activating mark H3K9ac (Lu et al., 2014)”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Proteostasis
What the sources say
- Not checked yetcites Lu et al., 2014
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“nutrient sensing, mitochondria, and epigenomic regulation are interconnected (Berger and Sassone-Corsi, 2015)”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Nutrient Sensing
What the sources say
- Not checked yetcites Berger and Sassone-Corsi, 2015
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“suggesting a potential link between changes in REST, chromatin state, and proteostasis.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Proteostasis
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“Changes in nutrient sensing and signaling are important hallmarks of aging (López-Otín et al., 2013).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Nutrient Sensing
What the sources say
- Not checked yetcites López-Otín et al., 2013 source
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“this chromatin-based induction of senescence occurred independently of other mechanisms of inducing senescence, including DNA damage and activation of the CDK inhibition pathway (p53/p21/p16) (Prieur et al., 2011).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Cellular Changes: Senescence and Stem Cell Exhaustion
What the sources say
- Not checked yetcites Prieur et al., 2011 source
Load-bearingStrength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“These studies strongly support a role for senescent cells in the progression of aging.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Cellular Changes: Senescence and Stem Cell Exhaustion
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“these links are likely to be important for the progression of aging.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Nutrient Sensing
Strength:hedged· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes? Checkable: unclear? Load-bearing: unclear✓ Based: passesIn the paper
“The cAMP-responsive element-binding protein (CREB) interacts with many co-activators (cAMP-regulated transcriptional co-activators, or CRTCs) to alter gene expression in response to fasting and feeding signals (Altarejos and Montminy, 2011).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Nutrient Sensing
What the sources say
- Not checked yetcites Altarejos and Montminy, 2011
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“too much p53 activity, for example, from constitutive activation, is also detrimental to longevity (reviewed by Rufini et al., 2013).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Cellular Changes: Senescence and Stem Cell Exhaustion
What the sources say
- Not checked yetcites Rufini et al., 2013 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“knockdown of CRTC-1 in C. elegans extends lifespan (Burkewitz et al., 2015).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Nutrient Sensing
What the sources say
- Not checked yetcites Burkewitz et al., 2015 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“senescence-associated heterochromatin foci are comprised of genomic regions distinct from lamin-associated genomic regions that experience a loss of heterochromatin in progeroid models (Rai and Adams, 2012; Zhang et al., 2015b).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Cellular Changes: Senescence and Stem Cell Exhaustion
What the sources say
- Not checked yetcites Rai and Adams, 2012
- Not checked yetcites Zhang et al., 2015b
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“sirtuins can regulate gene expression by deacetylating histone and non-histone substrates, and this activity depends on a cofactor linked to the cellular energy status, NAD+ (nicotinamide adenine dinucleotide) (Houtkooper et al., 2012).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Nutrient Sensing
What the sources say
- Not checked yetcites Houtkooper et al., 2012 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“the reliance of sirtuins on NAD+ can also be taken advantage of to slow or reverse aging using dietary changes or increased exercise (Guarente, 2013).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Nutrient Sensing
What the sources say
- Not checked yetcites Guarente, 2013 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“Stem cell exhaustion and a decline in stem cell function can result from the induction of senescence as well as from altered epigenomic regulation (Beerman and Rossi, 2015).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Cellular Changes: Senescence and Stem Cell Exhaustion
What the sources say
- Not checked yetcites Beerman and Rossi, 2015
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“AMPK-mediated phosphorylation can also repress transcription factors (and their transcriptional target genes) that are detrimental to lifespan, such as the transcriptional co-activator CRTC (Mair et al., 2011).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Nutrient Sensing
What the sources say
- Not checked yetcites Mair et al., 2011 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“AMPK, a pro-longevity protein kinase, is activated by low cellular energy (Burkewitz et al., 2014).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Nutrient Sensing
What the sources say
- Not checked yetcites Burkewitz et al., 2014 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“Senescence can be triggered by several factors, including DNA damage and telomere dysfunction (Rai and Adams, 2012; Rodier and Campisi, 2011)”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Cellular Changes: Senescence and Stem Cell Exhaustion
What the sources say
- Not checked yetcites Rai and Adams, 2012
- Not checked yetcites Rodier and Campisi, 2011 source
Strength:plain· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“NAD+ levels are sensitive to diet and exercise (Cantó et al., 2015)”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Nutrient Sensing
What the sources say
- Not checked yetcites Cantó et al., 2015 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“AMPK-mediated phosphorylation can promote longevity and gene expression changes, in part by modulating the pro-longevity transcription factor FOXO/DAF-16 (Greer et al., 2007).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Nutrient Sensing
What the sources say
- Not checked yetcites Greer et al., 2007 source
Strength:plain· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“p53 also promotes senescence in response to DNA damage and telomere attrition (Rufini et al., 2013).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Cellular Changes: Senescence and Stem Cell Exhaustion
What the sources say
- Not checked yetcites Rufini et al., 2013 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“Senescence is also associated with heterochromatin gains in the form of H3K9me2/3-enriched senescence-associated heterochromatin foci (Rai and Adams, 2012).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Cellular Changes: Senescence and Stem Cell Exhaustion
What the sources say
- Not checked yetcites Rai and Adams, 2012
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“These examples suggest that changes in metabolism and cellular energy availability can trigger changes in transcription factor activity and gene expression during aging.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Nutrient Sensing
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“The pro-inflammatory transcription factors NF-κB, STAT1, and STAT3 are mediating many of these changes (O’Brown et al., 2015; Tilstra et al., 2011).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Altered Intercellular Communication
What the sources say
- Not checked yetcites O’Brown et al., 2015 source
- Not checked yetcites Tilstra et al., 2011
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“Comparisons between individuals from different castes have revealed that they have caste-specific DNA methylation and H3K27ac patterns that are functionally important for their behavior (Simola et al., 2016; Yan et al., 2015).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Environmental Signals
What the sources say
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“NF-κB is regulated by many upstream factors and regulators including cytokines, growth factors, the deacetylases SIRT1 and SIRT6, and the transcription factor FOXO (Kawahara et al., 2009; Salminen et al., 2008).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Altered Intercellular Communication
What the sources say
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Given the interconnectedness of the hallmarks of aging, a therapeutic that directly impacts only one contributor to aging could ameliorate other hallmarks of aging.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Anti-aging Interventions
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Thus, epigenomic changes during senescence are important contributors to age-associated increased inflammation.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Altered Intercellular Communication
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“Inflammatory pathways and genes are upregulated in older animals, including humans (Tilstra et al., 2011).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Altered Intercellular Communication
What the sources say
- Not checked yetcites Tilstra et al., 2011
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“Compared to youthful stem cells, aged stem cell populations have a unique chromatin state and gene expression profile (Beerman et al., 2013; Liu et al., 2013; Sun et al., 2014).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Cellular Changes: Senescence and Stem Cell Exhaustion
What the sources say
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“The dysregulation of circadian rhythm has recently been identified as a hallmark of aging (Kondratov, 2007; Orozco-Solis and Sassone-Corsi, 2014).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Environmental Signals
What the sources say
- Not checked yetcites Kondratov, 2007 source
- Not checked yetcites Orozco-Solis and Sassone-Corsi, 2014
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Together, these upstream regulators and increased pro-inflammatory cytokines from senescent cells lead to increased NF-κB activity and gene expression changes with age.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Altered Intercellular Communication
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“the dysregulation of circadian gene expression could itself disrupt the epigenome.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Environmental Signals
Strength:hedged· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear? Based: unclearA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“age-dependent epigenomic alterations could result in a disruption of circadian rhythm.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Environmental Signals
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“these epigenomic changes are likely to contribute to the progression of aging by altering the regenerative capacity of an animal (Beerman and Rossi, 2015).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Cellular Changes: Senescence and Stem Cell Exhaustion
What the sources say
- Not checked yetcites Beerman and Rossi, 2015
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“age-associated increased NF-κB activity could alter the chromatin state of an aging cell by directly increasing the expression of a histone-modifying enzyme.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Altered Intercellular Communication
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“this phenomenon may involve male-induced changes in chromatin via the H3K27me3 demethylase UTX-1 (Maures et al., 2014).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Environmental Signals
What the sources say
- Not checked yetcites Maures et al., 2014 source
Strength:hedged· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“Increased numbers of senescent cells with age are an important contributor to the age-associated increase in inflammation because senescent cells secrete a large number of pro-inflammatory proteins (senescence-associated secretory phenotype, or SASP) (Rodier and Campisi, 2011).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Altered Intercellular Communication
What the sources say
- Not checked yetcites Rodier and Campisi, 2011 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“age-dependent epigenomic changes associated with the induction of senescence may underlie inflammaging.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Altered Intercellular Communication
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“the ability of caloric restriction to extend Drosophila lifespan and improve fat metabolism depends on circadian regulation (Katewa et al., 2016).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Environmental Signals
What the sources say
- Not checked yetcites Katewa et al., 2016 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“the NAD+-dependent deacetylase SIRT1 may be a molecular link between metabolism, circadian rhythm, and aging (Orozco-Solis and Sassone-Corsi, 2014).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Environmental Signals
What the sources say
- Not checked yetcites Orozco-Solis and Sassone-Corsi, 2014
Strength:hedged· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“the senescence-triggered appearance of H3K27me3-depleted “canyons” within genic and enhancer regions is associated with upregulation of SASP-related genes (Shah et al., 2013).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Altered Intercellular Communication
What the sources say
- Not checked yetcites Shah et al., 2013 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“In C. elegans, the presence of males shortens hermaphrodite lifespan (Maures et al., 2014; Shi and Murphy, 2014)”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Environmental Signals
What the sources say
- Not checked yetcites Maures et al., 2014 source
- Not checked yetcites Shi and Murphy, 2014
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“Independently of metabolism, chromatin and nucleosome remodeling are important contributors to the control of circadian rhythm (Kim et al., 2014; Tamayo et al., 2015).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Environmental Signals
What the sources say
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“Remodelin, a small molecule that inhibits the acetyl-transferase protein NAT10 (Larrieu et al., 2014).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Epigenetic Drugs: Potential Therapeutics?
What the sources say
- Not checked yetcites Larrieu et al., 2014 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“Heterochronic parabiosis (a technique that links the circulatory systems of an old and young animal) can “rejuvenate” several hallmarks of aging in an old mouse (Conboy et al., 2005; Sinha et al., 2014).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Parabiosis
What the sources say
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“If an intervention or therapeutic is able to rejuvenate an organism, it would be able to reverse the appearance of some or all of the hallmarks of aging, even when initiated in an older organism.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Anti-aging Interventions
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“a therapeutic that restores the regulatory landscape could have a far-reaching impact in slowing or reversing the progression of aging (Rando and Chang, 2012).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Anti-aging Interventions
What the sources say
- Not checked yetcites Rando and Chang, 2012 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“Several chemical inhibitors of chromatin-modifying enzymes have been recently developed (Helin and Dhanak, 2013).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Epigenetic Drugs: Potential Therapeutics?
What the sources say
- Not checked yetcites Helin and Dhanak, 2013
Load-bearingStrength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“caloric restriction in yeast involves nucleosome remodeling (Dang et al., 2014).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Exercise and Diet
What the sources say
- Not checked yetcites Dang et al., 2014 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“induced neurons from old cells retain some age-associated phenotypes (Mertens et al., 2015)”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Reprogramming
What the sources say
- Not checked yetcites Mertens et al., 2015 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“suggesting that passage through a fully pluripotent state may be necessary to completely reset the aging clock.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Reprogramming
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“genetic manipulations that affect chromatin state and chromatin modifiers can increase lifespan (reviewed by Benayoun et al., 2015).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Anti-aging Interventions
What the sources say
- Not checked yetcites Benayoun et al., 2015 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“This result may point toward a possible chromatin-based mechanism for the persistence of the pro-longevity effects of dietary changes.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Exercise and Diet
Strength:hedged· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“compounds that affect chromatin-modifying enzymes have recently been used to successfully treat cancer (Helin and Dhanak, 2013).”
§ The Aging Epigenome > Outlook
What the sources say
- Not checked yetcites Helin and Dhanak, 2013
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“some changes that occur very early (for example, during development) could affect the course of aging in adults.”
§ The Aging Epigenome > Outlook
Strength:hedged· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“However, it seems likely that this will be the case because not only are changes in gene expression and regulation common throughout evolution, but these changes can also profoundly impact the ability of a cell or organism to withstand stress in a changing environment and throughout an animal’s lifespan.”
§ The Aging Epigenome > Outlook
Strength:hedged· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passes- Rests on an assumption: Lifespans differ among species, including closely related species.
- Rests on an assumption: Alterations in gene expression and regulation can strongly influence how well cells or organisms tolerate stress as environments change and as they age.
- Probably not a substantial claim. 19
- It may state two separate claims as one. 99
In the paper
“Furthermore, transient, ectopic expression of a small number of transcription factors in adult mammalian cells can convert terminally differentiated cells into pluripotent stem cells or into other differentiated states (Graf, 2011).”
§ The Aging Epigenome > Introduction
What the sources say
- Not checked yetcites Graf, 2011 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“These epigenomic changes are not only observed during aging but also profoundly affect cellular function and stress resistance, thereby contributing to the progression of aging.”
§ The Aging Epigenome > Abstract
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes? Based: unclearIt may state two separate claims as one.
- Rests on an assumption: Aging involves progressive functional decline across molecular, cellular, tissue, and organismal levels.
None of the sources cited for this claim have been checked yet.
In the paper
“Over the past decades, a large body of research has shown that the molecular and cellular decline of aging can be organized into several evolutionarily conserved hallmarks or pillars of aging (Kennedy et al., 2014; López-Otín et al., 2013).”
§ The Aging Epigenome > Introduction
What the sources say
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
In the paper
“This is illustrated by the fact that in Saccharomyces cerevisiae, only three transcription factors control cell identity, and their mis-expression results in cell-cycle arrest and an inability to mate (Herskowitz, 1989).”
§ The Aging Epigenome > Introduction
What the sources say
- Not checked yetcites Herskowitz, 1989 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
In the paper
“Finally, non-coding RNAs have been found to play important roles in regulating chromatin states and gene expression (Rinn and Chang, 2012).”
§ The Aging Epigenome > Introduction
What the sources say
- Not checked yetcites Rinn and Chang, 2012
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Recent studies in diverse species and cell types have highlighted the pervasiveness of age-associated changes in transcription factor binding, histone marks, heterochromatin formation, and DNA methylation (recently reviewed by Benayoun et al., 2015; Zampieri et al., 2015) that contribute to changes in gene expression.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape
What the sources say
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“Gene regulation is a natural “hub” in the cell. Transcription regulators and chromatin modifiers receive cytoplasmic and extracellular signals and, in turn, alter the responses of the cell in an orchestrated manner.”
§ The Aging Epigenome > Introduction
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✗ Based: failsProbably not a substantial claim. The paper may give no reason why it holds. It may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Thus, age-associated changes in transcription regulatory networks are likely to impact the function of a cell or tissue and give rise to aging phenotypes and diseases.”
§ The Aging Epigenome > Introduction
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Because of their crucial role in cellular function, we propose that age-associated changes in transcriptional factors and chromatin states represent a critical aspect of the aging process and an important hub that links many hallmarks of aging.”
§ The Aging Epigenome > Introduction
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“FOXO/DAF-16 promotes longevity and inhibits age-related diseases in species ranging from worms to humans (Eijkelenboom and Burgering, 2013; Salih and Brunet, 2008).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Transcription Factors
What the sources say
- Not checked yetcites Eijkelenboom and Burgering, 2013
- Not checked yetcites Salih and Brunet, 2008
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
In the paper
“For example, in yeast and animals, mitochondrial dysfunction increases with age and may contribute to the progression of aging (Sun et al., 2016).”
§ The Aging Epigenome > Introduction
What the sources say
- Not checked yetcites Sun et al., 2016 source
Strength:hedged· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“The hallmarks of aging are interconnected (Kennedy et al., 2014; López-Otín et al., 2013; Zhang et al., 2015a), and age-associated perturbations of one can affect others.”
§ The Aging Epigenome > Introduction
What the sources say
Strength:plain· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
In the paper
“In addition, KDM6B/JMJD-3.1 and PHF8/JMJD-1.2 are necessary for lifespan extension induced by mitochondrial dysfunction, and overexpression of either of these genes extends lifespan in C. elegans (Merkwirth et al., 2016).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
What the sources say
- Not checked yetcites Merkwirth et al., 2016 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Importantly, both FOXO/DAF-16 and NRF/SKN-1 not only promote changes in chromatin state (Riedel et al., 2013; Zaret and Carroll, 2011; Zhang et al., 2006) but also are sensitive to them (Domcke et al., 2015; Eijkelenboom et al., 2013; Webb et al., 2013).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Transcription Factors
What the sources say
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“Classically considered to control the transcriptional response to oxidative stress, NRF/SKN-1 has also been implicated in general detoxification, proteostasis, and immunity (Blackwell et al., 2015).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Transcription Factors
What the sources say
- Not checked yetcites Blackwell et al., 2015 source
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
In the paper
“Interestingly, mice with higher PHF8/JMJD-1.2 expression are longer lived, suggesting that the link between PHF8/JMJD-1.2 and longevity might be conserved from invertebrates to mammals (Merkwirth et al., 2016).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
What the sources say
- Not checked yetcites Merkwirth et al., 2016 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Thus, FOXO/DAF-16 regulates a program of genes whose major function is to promote stress resistance, and this may be linked with their ability to extend lifespan.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Transcription Factors
Strength:hedged· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Like FOXO/DAF-16, NRF/SKN-1 is a “pro-longevity” transcription factor. Indeed, increasing the level of active NRF/SKN-1 extends lifespan in flies and worms (Sykiotis and Bohmann, 2008; Tullet et al., 2008).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Transcription Factors
What the sources say
- Not checked yetcites Sykiotis and Bohmann, 2008
- Not checked yetcites Tullet et al., 2008 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Together, these studies show that NRF/SKN-1 is an important regulator of stress resistance and that its activity is intimately linked with chromatin state.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Transcription Factors
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Knockdown of the H3K27me3 demethylase UTX-1 increases lifespan in C. elegans (Jin et al., 2011; Maures et al., 2011; Ni et al., 2012), suggesting that H3K27me3 levels are beneficial for longevity.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
What the sources say
Strength:hedged· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
In the paper
“In mammals, NRF2 recruits BRG2, a component of the SWI/SNF nucleosome remodeling complex, to its regulatory targets (Zhang et al., 2006). This interaction results in increased transcriptional activation of stress-response genes (Zhang et al., 2006), presumably through changes in the chromatin landscape.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Transcription Factors
What the sources say
- Not checked yetcites Zhang et al., 2006 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
In the paper
“In mice, loss of Utx is associated with severe developmental defects in females, but not males, and a shortened male lifespan (Welstead et al., 2012).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
What the sources say
- Not checked yetcites Welstead et al., 2012 source
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
In the paper
“Furthermore, loss of components of Polycomb, the H3K27 methyltransferase, increases lifespan in male Drosophila, suggesting that increased levels of H3K27me3 are detrimental for male lifespan (Siebold et al., 2010).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
What the sources say
- Not checked yetcites Siebold et al., 2010 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Indeed, FOXO has been found to bind open chromatin, especially at enhancer regions (Eijkelenboom et al., 2013; Webb et al., 2013), and can act as a pioneer factor to open closed chromatin (Zaret and Carroll, 2011).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Transcription Factors
What the sources say
- Not checked yetcites Eijkelenboom et al., 2013
- Not checked yetcites Webb et al., 2013 source
- Not checked yetcites Zaret and Carroll, 2011
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
In the paper
“In contrast, overexpression of the H3K27me3 demethylase KDM6B/JMJD-3.1 extends lifespan, suggesting that an increased level of H3K27me3 at specific loci (stress-response genes) is detrimental for lifespan (Labbadia and Morimoto, 2015).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
What the sources say
- Not checked yetcites Labbadia and Morimoto, 2015
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“Intriguingly, DNA methylation patterns can serve as a biomarker for human chronological age (Horvath, 2013), and perhaps even biological age (i.e., how youthful or decrepit an individual actually is at a particular age).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > DNA Methylation
What the sources say
- Not checked yetcites Horvath, 2013 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“While hypomethylation is common with age, some CpG islands and gene-rich regions become hypermethylated with age (reviewed by Benayoun et al., 2015; Zampieri et al., 2015).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > DNA Methylation
What the sources say
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“During aging, the changes in histone mark patterning and levels could be the result of age-associated changes in the activity of transcription factors, either through changes in the expression of the components of histone-modifying complexes or through the differential recruitment of these complexes to chromatin.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesProbably not a substantial claim.
None of the sources cited for this claim have been checked yet.
In the paper
“Interestingly, low levels of H3K36me3 are correlated with increased cryptic transcription (Sen et al., 2015) and a greater degree of gene expression change with age (Pu et al., 2015).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
What the sources say
- Not checked yetcites Sen et al., 2015 source
- Not checked yetcites Pu et al., 2015
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Interestingly, the loci that display age-dependent DNA hypermethylation are preferentially near tissue-specific genes, genes involved in differentiation and development, genes encoding transcription factors, and transcription factor binding sites (reviewed by Benayoun et al., 2015; Zampieri et al., 2015).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > DNA Methylation
What the sources say
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“In mammals, the genome-wide pattern of DNA methylation changes during aging (Figure 2), and these changes could play a role in the progression of aging (Benayoun et al., 2015; Zampieri et al., 2015).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > DNA Methylation
What the sources say
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Global H3K27me3 increases with age in the killifish brain and mouse quiescent satellite cells (Baumgart et al., 2014; Liu et al., 2013) but decreases with age during C. elegans aging and in human progeria models (Maures et al., 2011; Ni et al., 2012; Shumaker et al., 2006; Zhang et al., 2015b).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
What the sources say
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“H3K4me3, a mark associated with active transcription, has also been implicated in longevity, and its deposition changes with age in murine hematopoietic stem cells and in Drosophila (Sun et al., 2014; Wood et al., 2010) and cellular senescence in human fibroblasts (Shah et al., 2013).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
What the sources say
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“However, it has also been found that knockdown of the H3K4me3 demethylases (KDM5B/RBR-2 and KDM1A/LSD-1) can extend lifespan, often in the context of sterility (Lee et al., 2003; McColl et al., 2008; Ni et al., 2012), or has no effect on lifespan (Li et al., 2010).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
What the sources say
Strength:plain· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Consistent with this finding, deletion of the H3K36me3 demethylase extends lifespan in S. cerevisiae and C. elegans (Ni et al., 2012; Sen et al., 2015), whereas deletion of the H3K36 methyltransferase (met-1) in C. elegans shortens lifespan (Pu et al., 2015).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
What the sources say
- Not checked yetcites Ni et al., 2012
- Not checked yetcites Sen et al., 2015 source
- Not checked yetcites Pu et al., 2015
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“A comparison of H3K27me3 deposition in young versus old murine hematopoietic stem cells revealed that while H3K27me3 levels increased at most loci, there were also loci with decreased H3K27me3 levels with age (Sun et al., 2014).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Histone Marks
What the sources say
- Not checked yetcites Sun et al., 2014 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Excitingly, chromatin and transcription regulation have been found to play key roles in the age-dependent manifestation of these hallmarks of aging and in the response to their emergence (Figure 3).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Thus, the potential gene expression effects of age-associated differential DNA methylation are likely to be context dependent and may require local changes in histones marks and transcription factor binding to occur before gene expression changes are observed.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > DNA Methylation
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Interestingly, nucleosome occupancy changes have also been demonstrated to be associated with the global upregulation of gene expression with age in yeast (Hu et al., 2014) and increased transcription factor (FOXA2) binding in aged mammalian livers (Bochkis et al., 2014).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Chromatin Structure
What the sources say
- Not checked yetcites Hu et al., 2014
- Not checked yetcites Bochkis et al., 2014 source
Strength:boosted· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“With age, telomere attrition occurs, somatic DNA mutations accumulate, and transposons activate. There is also an increase in the rate of chromosomal abnormalities, some of which are oncogenic.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
What the sources say
- Not checked yetcites López-Otín et al., 2013 source
- Not checked yetcites Vijg and Suh, 2013
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Nucleosome occupancy can decrease with age (Figure 2), and ameliorating this loss in yeast increases lifespan (Feser et al., 2010; Hu et al., 2014; Ivanov et al., 2013).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Chromatin Structure
What the sources say
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Importantly, during normal aging in humans and invertebrates, HP1 and H3K9me3 levels also decline (Figure 2), suggesting that loss of heterochromatin is a common feature of aging (Larson et al., 2012; Ni et al., 2012; Scaffidi and Misteli, 2006; Wood et al., 2010).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Chromatin Structure
What the sources say
- Not checked yetcites Larson et al., 2012 source
- Not checked yetcites Ni et al., 2012
- Not checked yetcites Scaffidi and Misteli, 2006
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Intriguingly, it was recently discovered that the autophagosome can selectively degrade the endoplasmic reticulum and the nucleus (Mochida et al., 2015), and that this degradation can lead to a loss of the nuclear lamina (Dou et al., 2015).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Chromatin Structure
What the sources say
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
In the paper
“Interestingly, the nuclear envelope may play a role in heterochromatin loss in both normal and progeroid aging: the levels of a cryptic splice isoform that results in a truncated nuclear envelope protein lamin A, and that mimics the mutation of HGPS, increase with age in humans and contribute to the loss of heterochromatin (Scaffidi and Misteli, 2006).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Chromatin Structure
What the sources say
- Not checked yetcites Scaffidi and Misteli, 2006
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“However, at least in the case of aged β cells, a significant correlation between DNA methylation and gene expression changes exists for distal regulatory regions (enhancers), but not proximal regulatory regions (promoters) (Avrahami et al., 2015).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > DNA Methylation
What the sources say
- Not checked yetcites Avrahami et al., 2015 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“However, in mammalian muscle stem cells, the loss of core histones with age appears to be due to changes in gene expression and is linked with the amount of the repressive H3K27me3 mark at the histone genes (Liu et al., 2013).”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Chromatin Structure
What the sources say
- Not checked yetcites Liu et al., 2013 source
Strength:hedged· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Together, these studies show that the positioning of nucleosomes on DNA changes with age and that changes in transcription factor activity and the chromatin landscape can trigger these changes during aging.”
§ The Aging Epigenome > The Aging Epigenomic Regulatory Landscape > Chromatin Structure
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“Interestingly, damaged telomeres can also lead to a reduction in the expression of core histones in a cell, suggesting that a loss of telomere integrity can cause changes in the aging chromatin landscape (O’Sullivan et al., 2010).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
What the sources say
- Not checked yetcites O’Sullivan et al., 2010 source
Strength:hedged· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“these large-scale chromosomal abnormalities are distinct from other aspects of genome instability, such as mutation accumulation, in both their molecular origin and sensitivity to DNA methylation changes.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“This raises the possibility that age-dependent DNA hypermethylation (increased DNA methylation) at specific loci contributes to the accumulation of point mutations during aging.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesProbably not a substantial claim.
In the paper
“In murine embryonic stem cells, DNA damage relocates the transcriptional silencer SIRT1 from promoters to the site of DNA damage and changes gene expression in a way that resembles organismal aging (Oberdoerffer et al., 2008).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
What the sources say
- Not checked yetcites Oberdoerffer et al., 2008 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“It is important to note, however, that in yeast the rate of age-associated mutation accumulation is low, and thereby is unlikely to play a major role in the progression of aging (Kaya et al., 2015).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
What the sources say
- Not checked yetcites Kaya et al., 2015 source
Strength:hedged· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
In the paper
“in yeast, the loss of nucleosomes with age is associated with increased expression (and perhaps increased retrotransposition) of the Ty retrotransposable element (Hu et al., 2014).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
What the sources say
- Not checked yetcites Hu et al., 2014
Strength:hedged· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
In the paper
“The recruitment of SIRT6 to sites of DNA damage helps to remodel the local chromatin environment through deacetylation of H3K56 and allow DNA repair machinery to access the DNA (Toiber et al., 2013).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
What the sources say
- Not checked yetcites Toiber et al., 2013 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“Deletion of SIRT6 causes more rapid aging in mice and increased genomic instability (Mostoslavsky et al., 2006), suggesting that changes in SIRT6 activity and H3K56 acetylation during normal aging could impact the cell’s ability to repair DNA damage.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
What the sources say
- Not checked yetcites Mostoslavsky et al., 2006 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“mutations in mtDNA, and changes inmitochondrial biogenesis have been functionally implicated in the progression of aging (reviewed by Sun et al., 2016).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Mitochondria
What the sources say
- Not checked yetcites Sun et al., 2016 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“This suggests that an accumulation of DNA damage and loss of SIRT1 repression may underlie age-associated epigenomic changes.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“As cells age, mitochondrial turnover declines and mitochondrial dysfunction increases (Sun et al., 2016).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Mitochondria
What the sources say
- Not checked yetcites Sun et al., 2016 source
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
In the paper
“Interestingly, during human aging, mutations accumulate in the genome of blood cells and C-to-T mutations are the most prevalent (Welch et al., 2012).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
What the sources say
- Not checked yetcites Welch et al., 2012 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“Consistent with a link between longevity and telomere silencing, older yeast have less active Sir2 (a sirtuin) and, as a result, increased H4K16 acetylation at telomeres (Dang et al., 2009).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
What the sources say
- Not checked yetcites Dang et al., 2009 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“DNA damage can result in transient gene repression (Kim et al., 2016) as well as more stable changes in gene expression that can be observed in humans as young as 40 years of age (Lu et al., 2004).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
What the sources say
- Not checked yetcites Kim et al., 2016 source
- Not checked yetcites Lu et al., 2004
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“In yeast, signals from the mitochondria can trigger gene expression changes in the nucleus (retrograde regulation), and this regulation is required for the longer replicative lifespan of yeast lacking mtDNA (Kirchman et al., 1999).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Mitochondria
What the sources say
- Not checked yetcites Kirchman et al., 1999 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Interestingly, sensing and responding to DNA damage involves the recruitment of chromatin modifiers, suggesting that an accumulation of DNA damage during life could be a source for age-associated epigenomic changes and that changes in chromatin state could affect DNA repair (Burgess et al., 2012; Oberdoerffer and Sinclair, 2007).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Genome Stability and Telomeres
What the sources say
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“the UPRmt responds to unbalanced levels of nuclear:mitochondrial-encoded oxidative phosphorylation enzymes, mtDNA depletion, and decline of the respiratory chain (Schulz and Haynes, 2015).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Proteostasis
What the sources say
- Not checked yetcites Schulz and Haynes, 2015
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
In the paper
“In C. elegans, the XBP-1 branch of the UPRER declines relatively early with age and overexpression of XBP-1 in neurons can extend lifespan, suggesting an important role for the UPRER in longevity (reviewed by Taylor, 2016).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Proteostasis
What the sources say
- Not checked yetcites Taylor, 2016 source
Strength:hedged· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
In the paper
“XBP1 and the UPRER have also been found to play a role in human neurodegenerative diseases, including Alzheimer’s disease, where UPRER/XBP1 activation is thought to be neuroprotective early in the disease onset but then a contributor to neuronal death during later disease stages (reviewed by Taylor, 2016).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Proteostasis
What the sources say
- Not checked yetcites Taylor, 2016 source
Strength:hedged· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
In the paper
“overexpression of the H3K27me3 demethylase KDM6B/JMJD-3.1 extends C. elegans lifespan and improves stress tolerance (Labbadia and Morimoto, 2015).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Proteostasis
What the sources say
- Not checked yetcites Labbadia and Morimoto, 2015
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“Proteostasis and the HSF-1 response decline with age (Labbadia and Morimoto, 2014).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Proteostasis
What the sources say
- Not checked yetcites Labbadia and Morimoto, 2014 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“This change occurs at the very beginning of adulthood and, similar to DAF-16 regulation, may be linked to signals from the germline (Hsin and Kenyon, 1999; Labbadia and Morimoto, 2015).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Proteostasis
What the sources say
- Not checked yetcites Hsin and Kenyon, 1999
- Not checked yetcites Labbadia and Morimoto, 2015
Strength:hedged· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
In the paper
“This suggests the exciting idea that epigenomic changes are one of the first to occur during aging and that these changes trigger the emergence of other hallmarks of aging (Labbadia and Morimoto, 2015).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Proteostasis
What the sources say
- Not checked yetcites Labbadia and Morimoto, 2015
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesProbably not a substantial claim. It may state two separate claims as one.
In the paper
“In mammals, additional transcription factors, including SRF and HSF2, are important contributors to the transcriptional response to heat shock (Mahat et al., 2016).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Proteostasis
What the sources say
- Not checked yetcites Mahat et al., 2016 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
In the paper
“REST, and its invertebrate ortholog SPR-4, protects neurons from amyloid β-protein toxicity as well as oxidative stress (Lu et al., 2014).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Proteostasis
What the sources say
- Not checked yetcites Lu et al., 2014
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Clearing senescent cells from adult mice by inducing apoptosis with the drug ABT263 or an inducible transgene rejuvenates hematopoietic and muscle stem cells, slows the onset of age-related disease, and increases lifespan (Baker et al., 2016; Chang et al., 2016).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Cellular Changes: Senescence and Stem Cell Exhaustion
What the sources say
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“An increase in the number of senescent cells and a decline in tissue regeneration due to the loss of stem cell proliferation are both hallmarks of aging (López-Otín et al., 2013).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Cellular Changes: Senescence and Stem Cell Exhaustion
What the sources say
- Not checked yetcites López-Otín et al., 2013 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“nuclear lamin defects can activate p53 and induce expression of p53 target genes (Varela et al., 2005).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Cellular Changes: Senescence and Stem Cell Exhaustion
What the sources say
- Not checked yetcites Varela et al., 2005 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
In the paper
“knockdown of the histone acetyltransferase p300 results in hypoacetylation of histones H3 and H4 and an increase in senescence in human cells, providing evidence for a causative link between changes in chromatin state and senescence (Prieur et al., 2011).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Cellular Changes: Senescence and Stem Cell Exhaustion
What the sources say
- Not checked yetcites Prieur et al., 2011 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“a recent study using human brain tissue identified dysregulation of the transcription factor REST (also known as NRSF) as a key, early event in the development of Alzheimer’s disease (Lu et al., 2014).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Proteostasis
What the sources say
- Not checked yetcites Lu et al., 2014
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Changes in the availability of NAD+ during aging can affect the activity of the sirtuins, yielding altered gene expression and chromatin state with age.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Nutrient Sensing
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Thus, appropriate regulation of the transcription factor p53 is key for longevity, and its dysregulation can lead to more rapid aging and increased senescence.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Cellular Changes: Senescence and Stem Cell Exhaustion
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“in mammals, p300/CBP also acts as a CREB co-activator through histone acetylation (e.g., H3K27ac and H3K14ac), suggesting a link between nutrient sensing, chromatin, and gene expression (Altarejos and Montminy, 2011).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Nutrient Sensing
What the sources say
- Not checked yetcites Altarejos and Montminy, 2011
Strength:hedged· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Patients with the progeroid diseases HGPS and Werner syndrome have abnormally high levels of senescent cells and low proliferative potential, and these changes are thought to be the result of a loss of lamin-associated heterochromatin (Shumaker et al., 2006; Zhang et al., 2015b).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Cellular Changes: Senescence and Stem Cell Exhaustion
What the sources say
- Not checked yetcites Shumaker et al., 2006 source
- Not checked yetcites Zhang et al., 2015b
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“SIRT1 activity is circadian, and through an interaction with components of the circadian transcription regulatory network and an H3K4 methyltransferase, SIRT1 helps to control circadian gene expression patterns (Aguilar-Arnal et al., 2015; Orozco-Solis and Sassone-Corsi, 2014).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Environmental Signals
What the sources say
- Not checked yetcites Aguilar-Arnal et al., 2015 source
- Not checked yetcites Orozco-Solis and Sassone-Corsi, 2014
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“the activity of these transcription factors increases with age in humans, and reducing NF-κB activity ameliorates mouse models of progeria and reverses age-associated pathology (O’Brown et al., 2015; Tilstra et al., 2011).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Altered Intercellular Communication
What the sources say
- Not checked yetcites O’Brown et al., 2015 source
- Not checked yetcites Tilstra et al., 2011
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“the H3K4 methyltransferase MLL1 is required for expression of SASP-related genes and promotes increased inflammation (Capell et al., 2016).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Altered Intercellular Communication
What the sources say
- Not checked yetcites Capell et al., 2016 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“NF-κB activates the expression of the H3K27me3 demethylase Jmjd3 in immune cells, leading to a loss of H3K27me3 (De Santa et al., 2007).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Altered Intercellular Communication
What the sources say
- Not checked yetcites De Santa et al., 2007 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“Genetic and environmental manipulations that perturb circadian rhythm shorten lifespan and result in metabolic defects and diseases including obesity and diabetes (Kondratov, 2007).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Environmental Signals
What the sources say
- Not checked yetcites Kondratov, 2007 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Reprogramming cells from elderly humans (as old as 101 years of age) into pluripotent cells erases many of the hallmarks of aging and restores a youthful gene expression profile that is maintained during differentiation (Lapasset et al., 2011; Mertens et al., 2015).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Reprogramming
What the sources say
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“The induction of pluripotency and the trans-differentiation of cells require different sets of transcription factors (Graf, 2011) and are thus likely to result in distinct changes in transcriptional networks and chromatin state.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Reprogramming
What the sources say
- Not checked yetcites Graf, 2011 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Epigenetic state (including chromatin marks and gene expression) are highly responsive to the environment, and, therefore, one might expect that exposure to more youthful circulating factors could reverse or slow the appearance of age-related epigenetic changes.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Parabiosis
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesProbably not a substantial claim. It may state two separate claims as one.
In the paper
“when cells derived from patients with the progeria disease HGPS were treated with the drug Remodelin, the cells had improved nuclear architecture and increased chromatin compaction, consistent with a gain of heterochromatin (Larrieu et al., 2014).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Epigenetic Drugs: Potential Therapeutics?
What the sources say
- Not checked yetcites Larrieu et al., 2014 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“The ability of an old nucleus to become pluripotent and youthful again is a phenomenon that occurs as a result of fertilization and that can be mimicked in the lab through nuclear transfer or by inducing pluripotency through the expression of particular transcription factors (Rando and Chang, 2012).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Reprogramming
What the sources say
- Not checked yetcites Rando and Chang, 2012 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“This suggests that reprogramming can reset the aging clock even for very old cells and could indicate that there is no point during aging when this therapeutic would not be effective (Figure 4).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Reprogramming
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“it is possible that these drugs could be utilized to slow the progression of aging or to treat age-related diseases.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Epigenetic Drugs: Potential Therapeutics?
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Gene regulation is a crucial hub in this network”
§ The Aging Epigenome > Outlook
Load-bearingStrength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesProbably not a substantial claim.
In the paper
“The effects of caloric restriction can be long lasting and even be passed on to the next generation (Fontana and Partridge, 2015).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Exercise and Diet
What the sources say
- Not checked yetcites Fontana and Partridge, 2015 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Many of the molecular signatures of aging, including stem cell exhaustion, altered intercellular signaling, and a loss of genome integrity, are reversed in an old mouse as a result of heterochronic parabiosis, suggesting that the epigenome and gene expression could also be restored to a more youthful state by this treatment (Rando and Chang, 2012; Sinha et al., 2014)”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Parabiosis
What the sources say
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesProbably not a substantial claim. It may state two separate claims as one.
In the paper
“the initiation timing and duration of these metabolic interventions (exercise and diet changes) can alter their effect on longevity, suggesting that context is an important factor and that these are not “one size fits all” interventions (Fontana and Partridge, 2015).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Exercise and Diet
What the sources say
- Not checked yetcites Fontana and Partridge, 2015 source
Strength:hedged· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
In the paper
“There are also drugs, such as rapamycin and metformin, that are able to mimic the effects of exercise and diet changes (Mercken et al., 2012).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Exercise and Diet
What the sources say
- Not checked yetcites Mercken et al., 2012 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Exercise and dietary changes, including caloric restriction and intermittent fasting, can slow and even reverse the progression of aging (Brandhorst et al., 2015; Fontana and Partridge, 2015; Garatachea et al., 2015; Mercken et al., 2012)”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Exercise and Diet
What the sources say
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Changes in diet and exercise impact the activity of various longevity regulatory mechanisms, including insulin/IGF signaling and the nutrient-sensing kinase AMPK, and can alter the expression of many genes (Fontana and Partridge, 2015; Garatachea et al., 2015).”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Exercise and Diet
What the sources say
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“aging is the result of dysfunction of a complex network that maintains organismal health, tissue homeostasis, and stress resistance.”
§ The Aging Epigenome > Outlook
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✗ Based: failsProbably not a substantial claim. The paper may give no reason why it holds.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“epigenomic regulation is highly connected to the other hallmarks of aging, and dysregulation of gene expression and the epigenome promote the progression of aging.”
§ The Aging Epigenome > Epigenomic Regulation Is Connected to Other Aging Hallmarks > Anti-aging Interventions
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“age-associated gene expression changes have recently been identified at the single-cell level in hematopoietic stem and progenitor cells (Kowalczyk et al., 2015), suggesting that at least for some tissues, changes in the cellular composition of a tissue with age cannot fully explain age-associated epigenomic dysregulation.”
§ The Aging Epigenome > Outlook
What the sources say
- Not checked yetcites Kowalczyk et al., 2015 source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“suggests that unique molecular mechanisms may underlie the exceptionally long or short lifespans found in nature”
§ The Aging Epigenome > Outlook
Strength:hedged· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
- Rests on an assumption: Lifespans differ among species, including closely related species.
In the paper
“Interestingly, the evolution of transcription regulatory networks is a rich source of phenotypic diversity (Carroll, 2008).”
§ The Aging Epigenome > Outlook
What the sources say
- Not checked yetcites Carroll, 2008 source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“age-associated changes in gene regulation could in turn trigger the emergence of other hallmarks of aging in a snowball effect (Figure 4).”
§ The Aging Epigenome > Outlook
Strength:hedged· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✗ Based: failsProbably not a substantial claim. The paper’s conclusions may not depend on it. The paper may give no reason why it holds.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“two mechanisms could underlie the observed, age-associated epigenomic changes: (1) the exact cellular composition of a tissue or organism may change with age (even within highly purified populations of cells), and/or (2) the gene expression and chromatin state within the cells that normally reside in a particular tissue may change.”
§ The Aging Epigenome > Outlook
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesProbably not a substantial claim. It may state two separate claims as one.
In the paper
“changes in one generation could even influence the gametes and perhaps be passed on to next generations (Lim and Brunet, 2013).”
§ The Aging Epigenome > Outlook
What the sources say
- Not checked yetcites Lim and Brunet, 2013
Strength:hedged· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“many more chromatin marks and even transcription factor families are still being discovered (Lohse et al., 2010; Luo et al., 2015).”
§ The Aging Epigenome > Outlook
What the sources say
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“The diversity of lifespans between species, even closely related species, illustrates that aging and longevity evolve”
§ The Aging Epigenome > Outlook
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
- Rests on an assumption: Lifespans differ among species, including closely related species.
The paper relies on this without support.
Aging involves progressive functional decline across molecular, cellular, tissue, and organismal levels.
“Aging is characterized by progressive functional decline at the molecular, cellular, tissue, and organismal levels.”
The paper relies on this without support.
In humans, age is the main risk factor for many diseases including neurodegeneration, cardiovascular disease, diabetes, osteoporosis, and cancer.
“In humans, age is the primary risk factor for a panoply of diseases including neurodegeneration, cardiovascular disease, diabetes, osteoporosis, and cancer.”
The paper relies on this without support.
Chromatin marks persist long and change progressively with age through cell divisions.
“Chromatin marks are long lasting and show a progressive change with age that persists through cellular divisions.”
The paper relies on this without support.
Recent evidence indicates epigenomic changes can occur very early in aging and be causative.
“Recent evidence suggests that epigenomic changes can occur extremely early in the aging process and be causative.”
The paper relies on this without support.
The order and molecular mechanism of youthful gene regulation can reveal the relationship and order of age-associated epigenomic and gene expression changes.
“The order and molecular mechanism of youthful gene regulation can give clues about the relationship between and order of age-associated epigenomic and gene expression changes.”
The authors state this as an assumption.
A model for normal DNA methylation patterning holds that H3K27 methylation repression occurs first and is then locked in by DNA methyltransferases.
“One model for normal DNA methylation patterning is that repression by H3K27 methylation occurs first and is “locked in” by the subsequent action of DNA methyltransferases.”
The paper relies on this without support.
Lifespans differ among species, including closely related species.
“The diversity of lifespans between species, even closely related species”
The paper relies on this without support.
Alterations in gene expression and regulation can strongly influence how well cells or organisms tolerate stress as environments change and as they age.
“these changes can also profoundly impact the ability of a cell or organism to withstand stress in a changing environment and throughout an animal’s lifespan”
The paper relies on this without support.
Individuals within a species vary in how long they live.
“Lifespan differences also exist between individuals of the same species.”
The authors state this as an assumption.
The molecular basis of lifespan differences between and within species is not fully understood.
“we do not fully understand the molecular basis of interand intra-species lifespan differences”
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
The source backs part of the claim, not all of it — or backs it for a different population, condition or comparison.
In the citing paper
“Several studies highlight how the external environment and the genetic background of an organism have pivotal roles in the aging process by affecting events that maintain epigenetic information 2,3 .”
From Mechanisms, pathways and strategies for rejuvenation through epigenetic reprogramming (2023) · cites this paper as [2]
Experimental — accuracy not yet measuredThe cited source says what the claim attributes to it.
In the citing paper
“These changes are complex and generally cell-type specific, but a consistent trend is the loss of heterochromatin and an associated transcriptional de-repression at sites across the genome, which has been observed in species from yeast to humans55–57.”
From The role of retrotransposable elements in ageing and age-associated diseases (2021) · cites this paper as [55]
The cited source says what the claim attributes to it.
In the citing paper
“In particular, age-associated epigenomic alterations can induce significant transcriptional drift and initiate cellular aging processes, implicating altered epigenetic signatures in aging pathophysiology and aging-related diseases.4,5”
From TERT activation targets DNA methylation and multiple aging hallmarks (2024) · cites this paper as [5]
The cited source says what the claim attributes to it.
In the citing paper
“The precise reason for why we age is not completely understood, but the progressive nature and influence of external factors suggest that the process probably stems from a failure of maintenance mechanisms that ultimately impact epigenetic regulation and gene expression 1,2 .”
From Mechanisms, pathways and strategies for rejuvenation through epigenetic reprogramming (2023) · cites this paper as [2]
The cited source says what the claim attributes to it.
In the citing paper
“Among the hallmarks of aging, loss of epigenetic information has been proposed as a critical cause of aging that precedes many other aspects of age-related deterioration 2,[5][6][7][8] .”
From Mechanisms, pathways and strategies for rejuvenation through epigenetic reprogramming (2023) · cites this paper as [2]
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
Each contradiction between two passages listed here was confirmed by an independent check.
The Nrf2-associated remodeler has two different names
MinorThe discussion names BRG2 as the Nrf2-associated protein, but the cited reference identifies BRG1. The protein name is inconsistent within the paper.
“In mammals, NRF2 recruits BRG2, a component of the SWI/SNF nucleosome remodeling complex, to its regulatory targets (Zhang et al., 2006).”
“152. Zhang J Ohta T Maruyama A Hosoya T Nishikawa K Maher JM Shibahara S Itoh K Yamamoto M BRG1 interacts with Nrf2 to selectively mediate HO-1 induction in response to oxidative stress”
Citations
Cites
López-Otín, C., Blasco, M. A., Partridge, L., Serrano, M., & Kroemer, G. (2013) · Cell · doi:10.1016/j.cell.2013.05.039 · Cited by 14,982
DNA methylation age of human tissues and cell types
Horvath, S. (2013) · Genome Biology · doi:10.1186/gb-2013-14-10-r115 · Cited by 7,075
Genome Regulation by Long Noncoding RNAs
Rinn, J. L., & Chang, H. Y. (2012) · Annual Review of Biochemistry · doi:10.1146/annurev-biochem-051410-092902 · Cited by 4,091
Naturally occurring p16Ink4a-positive cells shorten healthy lifespan
Baker, D. J., Childs, B. G., Durik, M., Wijers, M. E., Sieben, C. J., Zhong, J., A. Saltness, R., Jeganathan, K. B., Verzosa, G. C., Pezeshki, A., et al. (2016) · Nature · doi:10.1038/nature16932 · Cited by 2,876
Geroscience: Linking Aging to Chronic Disease
Kennedy, B. K., Berger, S. L., Brunet, A., Campisi, J., Cuervo, A. M., Epel, E. S., Franceschi, C., Lithgow, G. J., Morimoto, R. I., Pessin, J. E., et al. (2014) · Cell · doi:10.1016/j.cell.2014.10.039 · Cited by 2,764
Self-citationRejuvenation of aged progenitor cells by exposure to a young systemic environment
Conboy, I. M., Conboy, M. J., Wagers, A. J., Girma, E. R., Weissman, I. L., & Rando, T. A. (2005) · Nature · doi:10.1038/nature03260 · Cited by 2,287
Kaeberlein, M., McVey, M., & Guarente, L. (1999) · Genes & Development · doi:10.1101/gad.13.19.2570 · Cited by 2,253 · cited 2×
“Furthermore, increasing the level of Sir2 in yeast increases life- 734 Molecular Cell 62, June 2, 2016 span (Kaeberlein et al., 1999).”
BackgroundFour faces of cellular senescence
Rodier, F., & Campisi, J. (2011) · Journal of Cell Biology · doi:10.1083/jcb.201009094 · Cited by 2,070 · cited 5×
“Senescence can be triggered by several factors, including DNA damage and telomere dysfunction (Rai and Adams, 2012; Rodier and Campisi, 2011), two aspects of aging that are intimately linked with chromatin.”
BackgroundInfluentialEvo-Devo and an Expanding Evolutionary Synthesis: A Genetic Theory of Morphological Evolution
Carroll, S. B. (2008) · Cell · doi:10.1016/j.cell.2008.06.030 · Cited by 2,067
Transposable elements and the epigenetic regulation of the genome
Slotkin, R. K., & Martienssen, R. (2007) · Nature Reviews Genetics · doi:10.1038/nrg2072 · Cited by 2,044
Flagged first, then by citations
2 of the 156 references couldn’t be matched to a known paper.
Cited by
Sorted by citations
Epigenetic plasticity and the hallmarks of cancer
Flavahan, W. A., Gaskell, E., & Bernstein, B. E. (2017) · Science · doi:10.1126/science.aal2380 · Cited by 1,340
Mitochondrial dysfunction in cell senescence and aging
Miwa, S., Kashyap, S., Chini, E., & von Zglinicki, T. (2022) · Journal of Clinical Investigation · doi:10.1172/jci158447 · Cited by 1,061
DNA methylation aging clocks: challenges and recommendations
Bell, C. G., Lowe, R., Adams, P. D., Baccarelli, A. A., Beck, S., Bell, J. T., Christensen, B. C., Gladyshev, V. N., Heijmans, B. T., Horvath, S., et al. (2019) · Genome Biology · doi:10.1186/s13059-019-1824-y · Cited by 1,025
Epigenetic mechanisms of longevity and aging
Sen, P., Shah, P. P., Nativio, R., & Berger, S. L. (2016) · Cell · doi:10.1016/j.cell.2016.07.050 · Cited by 956
DNA Methylation Clocks in Aging: Categories, Causes, and Consequences
Field, A. E., Robertson, N., Wang, T., Havas, A. P., Ideker, T., & Adams, P. D. (2018) · Molecular Cell · doi:10.1016/j.molcel.2018.08.008 · Cited by 644
Metadata
- Authors
- Booth, L. N., & Brunet, A.
- Affiliations
- Stanford University (US)
- Corresponding author
- Brunet, Anne
- Venue
- Molecular Cell
- Publisher
- Elsevier BV
- Published
- 2016-06
- Volume
- 62
- Issue
- 5
- Pages
- 728-744
- ISSN
- 1097-2765 (ISSN-L)
- PMC
- PMC4917370
- OpenAlex
- W2415866521
- Semantic Scholar
- 0ce183e944620e6c917b20635901d47ca5fc437f
- Cited by
- 499
- References
- 156
- Citations by year
- 2026: 35 · 2025: 41 · 2024: 45 · 2023: 48 · 2022: 53 · 2021: 80 · 2020: 62 · 2019: 45 · 2018: 57 · 2017: 25 · 2016: 7
- FWCI
- 3.99
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Molecular Cell (publishedVersion)
- PubMed (publishedVersion)
- Europe PMC (PubMed Central) (acceptedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institute on Aging (R56AG031198, DP1AG044848, P01AG036695)
- National Human Genome Research Institute (T32HG000044)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
- Keywords
- aging, epigenome, chromatin state, transcriptional regulatory networks, stress tolerance, frailty, age-related diseases, anti-aging therapeutics, epigenetic dysregulation
- MeSH terms
- Age Factors, Aging, Animals, DNA, Mitochondrial, Genotype, Histones, Humans, Mitochondria, Nutritional Status, Phenotype, Transcription Factors, Transcription, Genetic, Telomere, DNA Methylation, RNA, Untranslated, Chromatin Assembly and Disassembly, Genomic Instability, Epigenesis, Genetic, Epigenomics
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
A language model drew the claims from the paper on 2026-10-06, under version 3 of the claim definition (model deepseek-v4.1-flash, prompt extract-v3).
A second model labelled each claim on 2026-10-06 (model jev-1.13-20260917, definition revision gold-guideline-v0.2).
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review