The DOI matches its Crossref record; 217 of the 227 references it cites were found in a registry or an index; 18 of the 220 sources its claims cite were checked for support.
Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications
Open accessAbstract
Major depressive disorder (MDD) was previously hypothesized to be a disease of monoamine deficiency in which low levels of monoamines in the synaptic cleft were believed to underlie depressive symptoms. More recently, however, there has been a paradigm shift toward a neuroplasticity hypothesis of depression in which downstream effects of antidepressants, such as increased neurogenesis, contribute to improvements in cognition and mood. This review takes a top-down approach to assess how changes in behavior and hippocampal-dependent circuits may be attributed to abnormalities at the molecular, structural, and synaptic level. We conclude with a discussion of how antidepressant treatments share a common effect in modulating neuroplasticity and consider outstanding questions and future perspectives.
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Claims the paper makes
101 Not checked yet · 26 Own interpretation · 9 Partly supported · 1 Supported · 1 No basis given · accuracy not yet measured
The cited sources support only part of this claim — read each source’s verdict below.
In the paper
“In addition to dysfunctional top-down regulation, altered limbic and intra-hippocampal connectivity has been observed in MDD.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Learning, Memory, and Mood: Network Changes in Depression
What the sources say
- Partly supportedcites [51] Hamilton JP, Gotlib IH. Neural substrates of increased memory sensitivity for negative stimuli in major depression. Biol Psychiatry. 2008;63:1155–62. sourceExperimental — accuracy not yet measured
The Results report greater amygdala–hippocampus and amygdala–caudate-putamen functional connectivity in depressed participants during successful encoding of negative stimuli. The Methods and Results describe connectivity between the amygdala and these regions, not connectivity within the hippocampus; the claim also omits the negative-memory task condition. (LLM, conf=0.88)
- Partly supportedcites [52] Cullen KR, Westlund MK, Klimes-Dougan B, Mueller BA, Houri A, Eberly LE, et al. Abnormal amygdala resting-state functional connectivity in adolescent depression. JAMA Psychiatry. 2014;71:1138–47. sourceExperimental — accuracy not yet measured
The Discussion section on amygdala–hippocampus/parahippocampus resting-state connectivity reports altered connectivity between these limbic regions in adolescents with MDD. It does not report intra-hippocampal connectivity—that is, connectivity within the hippocampus—so that part of the claim is unsupported. No page number is available in our copy. (LLM, conf=0.87)
plaincorrelational- Asserted: passes — The authors put it forward as true.
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In the paper
“In rodents, BDNF haploinsufficiency resulted in smaller hippocampal volume and increased anxiety-related behaviors when exposed to chronic stress80, 81.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A Balancing Act: Cell Death and Survival
What the sources say
- Partly supportedcites [80] Chen ZY, Jing D, Bath KG, Ieraci A, Khan T, Siao CJ, et al. Genetic variant BDNF (Val66Met) polymorphism alters anxiety-related behavior. Science. 2006;314:140–3. sourceExperimental — accuracy not yet measured
The indexed text (labeled Abstract, page unavailable) reports a 13.8% smaller hippocampal volume in heterozygous BDNF knockout mice and increased anxiety-related behavior in two tests. It does not report that these mice were exposed to chronic stress; its separate discussion of chronic stress describes reduced hippocampal BDNF expression and heightened anxiety, not a chronic-stress experiment in the haploinsufficient mice. (LLM, conf=0.88)
- Partly supportedcites [81] Magariños AM, Li CJ, Gal Toth J, Bath KG, Jing D, Lee FS, et al. Effect of brain-derived neurotrophic factor haploinsufficiency on stress-induced remodeling of hippocampal neurons. Hippocampus. 2011;21:253–64. sourceExperimental — accuracy not yet measured
The Results section (page unavailable) reports smaller hippocampal volume in BDNF-haploinsufficient mice than in wild-type mice. The paper does not report increased anxiety-related behavior after chronic stress; the Discussion (page unavailable) says anxiety-like behavior has not been consistently observed in these mice. (LLM, conf=0.90)
plaindirect- Asserted: passes — The authors put it forward as true.
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Every source the paper cites for this claim was checked and supports it.
In the paper
“Ketamine is a non-competitive NMDA inhibitor194.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Treatment Induced Neuroplasticity
What the sources say
- Supportedcites [194] Dravid SM, Erreger K, Yuan H, Nicholson K, Le P, Lyuboslavsky P, et al. Subunit-specific mechanisms and proton sensitivity of NMDA receptor channel block. J Physiol. 2007;581:107–28. source
The Results describe ketamine as a use-dependent open-channel blocker of NMDA receptors. Blocking the channel rather than competing at the agonist-binding site supports the description of ketamine as a non-competitive NMDA inhibitor. No page number is provided in our copy. (LLM, conf=0.90)
plain- Asserted: passes — The authors put it forward as true.
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In the paper
“We have shown that DG granule neuron number and DG volume were smaller in anterior and mid, but not posterior hippocampus in unmedicated MDD postmortem62.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A Balancing Act: Cell Death and Survival
What the sources say
- Not checked yetcites [62] Boldrini M, Santiago AN, Hen R, Dwork AJ, Rosoklija GB, Tamir H, et al. Hippocampal granule neuron number and dentate gyrus volume in antidepressant-treated and untreated major depression. Neuropsychopharmacology. 2013;38:1068–77. source
boosted- Asserted: passes — The authors put it forward as true.
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In the paper
“Additionally, we found more granule neurons and a larger DG in resilient subjects who were exposed to childhood adversity but had no lifetime psychiatric diagnosis and died from natural causes63.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A Balancing Act: Cell Death and Survival
What the sources say
- Not checked yetcites [63] Boldrini M, Galfalvy H, Dwork AJ, Rosoklija GB, Trencevska-Ivanovska I, Pavlovski G, et al. Resilience is associated with larger dentate gyrus, while suicide decedents with major depressive disorder have fewer granule neurons. Biol Psychiatry. 2019;85:850–62. source
plaincorrelational- Asserted: passes — The authors put it forward as true.
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None of the sources cited for this claim have been checked yet.
In the paper
“However, our group and others have shown evidence of neurogenesis throughout adulthood using double immunofluorescence98-101, in situ hybridization102 and 14C decay-defined neuronal age103.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A role for adult hippocampal neurogenesis in depression pathology?
What the sources say
- Not checked yetcites [98] Moreno-Jiménez EP, Flor-García M, Terreros-Roncal J, Rábano A, Cafini F, Pallas-Bazarra N, et al. Adult hippocampal neurogenesis is abundant in neurologically healthy subjects and drops sharply in patients with Alzheimer’s disease. Nat Med. 2019;25:554–60. source
- Not checked yetcites [99] Terreros-Roncal J, Moreno-Jiménez EP, Flor-García M, Rodríguez-Moreno CB, Trinchero MF, Cafini F, et al. Impact of neurodegenerative diseases on human adult hippocampal neurogenesis. Science. 2021;374:1106–13. source
- Not checked yetcites [100] Tobin MK, Musaraca K, Disouky A, Shetti A, Bheri A, Honer WG, et al. Human hippocampal neurogenesis persists in aged adults and Alzheimer’s disease patients. Cell Stem Cell. 2019;24:974–82.e3. source
- Not checked yetcites [101] Tartt AN, Fulmore CA, Liu Y, Rosoklija GB, Dwork AJ, Arango V, et al. Considerations for assessing the extent of hippocampal neurogenesis in the adult and aging human brain. Cell Stem Cell. 2018;23:782–3. source
- Not checked yetcites [102] Spalding KL, Bergmann O, Alkass K, Bernard S, Salehpour M, Huttner HB, et al. Dynamics of hippocampal neurogenesis in adult humans. Cell. 2013;153:1219–27. source
- Not checked yetcites [103] Moreno-Jiménez EP, Terreros-Roncal J, Flor-García M, Rábano A, Llorens-Martín M. Evidences for adult hippocampal neurogenesis in humans. J Neurosci. 2021;41:2541–53. source
plain- Asserted: passes — The authors put it forward as true.
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None of the sources cited for this claim have been checked yet.
In the paper
“In postmortem human brain, we found fewer neural progenitor cells and mature granular neurons in unmedicated depressed subjects, selectively in anterior DG, compared with non-psychiatric sudden death controls, suggesting that neurogenesis may be blunted in MDD62, 63.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A role for adult hippocampal neurogenesis in depression pathology?
What the sources say
- Not checked yetcites [62] Boldrini M, Santiago AN, Hen R, Dwork AJ, Rosoklija GB, Tamir H, et al. Hippocampal granule neuron number and dentate gyrus volume in antidepressant-treated and untreated major depression. Neuropsychopharmacology. 2013;38:1068–77. source
- Not checked yetcites [63] Boldrini M, Galfalvy H, Dwork AJ, Rosoklija GB, Trencevska-Ivanovska I, Pavlovski G, et al. Resilience is associated with larger dentate gyrus, while suicide decedents with major depressive disorder have fewer granule neurons. Biol Psychiatry. 2019;85:850–62. source
hedgedcorrelational- Asserted: passes — The authors put it forward as true.
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None of the sources cited for this claim have been checked yet.
In the paper
“We found that antidepressant treatment is associated with more neural progenitor cells and granule neurons in postmortem human DG in MDD compared with non-MDD sudden death controls.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Treatment Induced Neuroplasticity
What the sources say
- Not checked yetcites [62] Boldrini M, Santiago AN, Hen R, Dwork AJ, Rosoklija GB, Tamir H, et al. Hippocampal granule neuron number and dentate gyrus volume in antidepressant-treated and untreated major depression. Neuropsychopharmacology. 2013;38:1068–77. source
- Not checked yetcites [121] Duman RS, Nakagawa S, Malberg J. Regulation of adult neurogenesis by antidepressant treatment. Neuropsychopharmacology. 2001;25:836–44. source
plaincorrelational- Asserted: passes — The authors put it forward as true.
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None of the sources cited for this claim have been checked yet.
In the paper
“The hippocampus is of particular importance in understanding depression pathogenesis14-16.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Introduction
What the sources say
- Not checked yetcites [14] Liu B, Liu J, Wang M, Zhang Y, Li L. From serotonin to neuroplasticity: evolvement of theories for major depressive disorder. Front Cell Neurosci. 2017;11:305. source
- Not checked yetcites [15] Price RB, Duman R. Neuroplasticity in cognitive and psychological mechanisms of depression: an integrative model. Mol Psychiatry. 2020;25:530–43. source
- Not checked yetcites [16] Sanchez-Mendoza EH, Camblor-Perujo S, Martins Nascentes-Melo L, Dzyubenko E, Fleischer M, Silva de Carvalho T, et al. Compromised hippocampal neuroplasticity in the interferon-α and toll-like receptor-3 activation-induced mouse depression model. Mol Neurobiol. 2020;57:3171–82. source
plaincorrelational- Asserted: passes — The authors put it forward as true.
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In the paper
“Within the same patient, there is no consistency of severity of individual symptoms, symptom components or factors across successive episodes of major depression32.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Learning, Memory, and Mood: Network Changes in Depression
What the sources say
- Not checked yetcites [32] Oquendo MA, Barrera A, Ellis SP, Li S, Burke AK, Grunebaum M, et al. Instability of symptoms in recurrent major depression: a prospective study. Am J Psychiatry. 2004;161:255–61. source
plain- Asserted: passes — The authors put it forward as true.
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- It may state two separate claims as one. 50
- Probably not a substantial claim. 10
The cited sources support only part of this claim — read each source’s verdict below.
In the paper
“The pathogenesis of cognitive and affective deficits in untreated MDD is not fully elucidated but likely involves abnormalities across multiple brain regions33-35, and includes but is not limited to changes in functional and/or structural connectivity.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Learning, Memory, and Mood: Network Changes in Depression
What the sources say
- Not checked yetcites [33] Cao X, Liu Z, Xu C, Li J, Gao Q, Sun N, et al. Disrupted resting-state functional connectivity of the hippocampus in medication-naïve patients with major depressive disorder. J Affect Disord. 2012;141:194–203. source
- Partly supportedcites [34] de Kwaasteniet B, Ruhe E, Caan M, Rive M, Olabarriaga S, Groefsema M, et al. Relation between structural and functional connectivity in major depressive disorder. Biol Psychiatry. 2013;74:40–7. sourceExperimental — accuracy not yet measured
The introduction (p. 2) describes abnormalities across a frontolimbic network, and the results (p. 2) report altered structural and functional connectivity in MDD. However, the Patients section (p. 4) includes participants taking psychotropic medication, so the findings do not specifically establish this account for untreated MDD. The paper also does not establish the pathogenesis of cognitive deficits. (LLM, conf=0.88)
- Supportedcites [35] Hao ZY, Zhong Y, Ma ZJ, Xu HZ, Kong JY, Wu Z, et al. Abnormal resting-state functional connectivity of hippocampal subfields in patients with major depressive disorder. BMC Psychiatry. 2020;20:71. source
Split into 2 atoms — 2 confirmed, 0 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.
hedgedconditional- Asserted: passes — The authors put it forward as true.
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It may state two separate claims as one.
The cited sources support only part of this claim — read each source’s verdict below.
In the paper
“Currently, reported mechanisms potentially underlying cell loss include, but are not limited to, glutamate/glutamine cycling (see section on Molecular and Cellular Mechanisms of Neuroplasticity), blunted neurogenesis, decreased neurotrophic factor expression and upregulation of pro-apoptotic pathways72.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A Balancing Act: Cell Death and Survival
What the sources say
- Partly supportedcites [72] Banasr M, Dwyer JM, Duman RS. Cell atrophy and loss in depression: reversal by antidepressant treatment. Curr Opin Cell Biol. 2011;23:730–7. sourceExperimental — accuracy not yet measured
The sections on Decreased Adult Neurogenesis and Gliogenesis, Decreased Neurotrophic Factor Expression, and Apoptotic Pathways support three of the proposed mechanisms. The Glutamate Excitotoxicity section describes excess glutamate from increased release and reduced clearance as a potential contributor to cell damage, but does not describe glutamate/glutamine cycling as the mechanism. Page numbers were not available in our copy. (LLM, conf=0.85)
hedgedconditional- Asserted: passes — The authors put it forward as true.
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It may state two separate claims as one.
- Partly supported
The cited sources support only part of this claim — read each source’s verdict below.
In the paper
“Conversely, when patients with MDD were asked to ignore negative stimuli, they failed to recruit the DLPFC which was correlated with amygdala hyperactivity48.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Learning, Memory, and Mood: Network Changes in Depression
What the sources say
- Partly supportedcites [48] Fales CL, Barch DM, Rundle MM, Mintun MA, Snyder AZ, Cohen JD, et al. Altered emotional interference processing in affective and cognitive-control brain circuitry in major depression. Biol Psychiatry. 2008;63:377–84. sourceExperimental — accuracy not yet measured
The Discussion reports that depressed patients did not recruit the DLPFC when ignoring fearful stimuli and showed enhanced amygdala responses in the same condition. But the Correlational Analyses report a significant DLPFC–amygdala correlation only when patients attended to fearful stimuli, not when they ignored them. The claimed correlation in the ignore condition is therefore unsupported. (LLM, conf=0.90)
plaincorrelational- Asserted: passes — The authors put it forward as true.
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It may state two separate claims as one.
- Partly supported
The cited sources support only part of this claim — read each source’s verdict below.
In the paper
“A few studies provide evidence that the absence of neurogenesis elicits depressive like symptoms in rodents123, 124, but most studies find that absent neurogenesis is not sufficient to induce a depressive phenotype125 although it is required in mice for the behavioral effects of antidepressants118, 126.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A role for adult hippocampal neurogenesis in depression pathology?
What the sources say
- Not checked yetcites [123] Revest JM, Dupret D, Koehl M, Funk-Reiter C, Grosjean N, Piazza PV, et al. Adult hippocampal neurogenesis is involved in anxiety-related behaviors. Mol Psychiatry. 2009;14:959–67. source
- Partly supportedcites [124] Petrik D, Lagace DC, Eisch AJ. The neurogenesis hypothesis of affective and anxiety disorders: are we mistaking the scaffolding for the building? Neuropharmacology. 2012;62:21–34. sourceExperimental — accuracy not yet measured
Split into 2 atoms — 1 confirmed, 1 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.
- Partly supportedcites [125] Hill AS, Sahay A, Hen R. Increasing Adult Hippocampal Neurogenesis is Sufficient to Reduce Anxiety and Depression-Like Behaviors. Neuropsychopharmacology. 2015;40:2368–78. sourceExperimental — accuracy not yet measured
Split into 2 atoms — 1 confirmed, 1 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.
- Partly supportedcites [118] David DJ, Samuels BA, Rainer Q, Wang JW, Marsteller D, Mendez I, et al. Neurogenesis-dependent and -independent effects of fluoxetine in an animal model of anxiety/depression. Neuron. 2009;62:479–93. sourceExperimental — accuracy not yet measured
Split into 2 atoms — 0 confirmed, 2 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.
- Partly supportedcites [126] Anacker C, Luna VM, Stevens GS, Millette A, Shores R, Jimenez JC, et al. Hippocampal neurogenesis confers stress resilience by inhibiting the ventral dentate gyrus. Nature. 2018;559:98–102. sourceExperimental — accuracy not yet measured
Split into 2 atoms — 0 confirmed, 1 partially supported, 0 disputed, 0 misattributed, 1 unverifiable. Expand the claim to see per-atom verdicts.
plainconditional- Asserted: passes — The authors put it forward as true.
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It may state two separate claims as one.
The cited sources support only part of this claim — read each source’s verdict below.
In the paper
“This may upregulate LTP pathways, and downregulate LTD177, 178, having benefits on network activity and consequently cognition and behavior.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Treatment Induced Neuroplasticity
What the sources say
- Partly supportedcites [177] Kraus C, Castrén E, Kasper S, Lanzenberger R. Serotonin and neuroplasticity - Links between molecular, functional and structural pathophysiology in depression. Neurosci Biobehav Rev. 2017;77:317–26. sourceExperimental — accuracy not yet measured
Section 2.2 (page not provided) says serotonin receptors modulate LTP and/or LTD and links synaptic plasticity to learning and memory. The Introduction also links impaired plasticity to problems in neuronal-network information processing. Neither passage establishes that antidepressants specifically increase LTP while decreasing LTD, or that this combination improves cognition and behavior. (LLM, conf=0.84)
- Could not verifycites [178] Fales CL, Barch DM, Rundle MM, Mintun MA, Mathews J, Snyder AZ, et al. Antidepressant treatment normalizes hypoactivity in dorsolateral prefrontal cortex during emotional interference processing in major depression. J Affect Disord. 2009;112:206–11. sourceExperimental — accuracy not yet measured
The Discussion (pp. 206–211; exact page not identified in our copy) reports increased DLPFC activity after antidepressant treatment, but does not address LTP or LTD pathways. Searches for LTP, LTD, and synaptic plasticity found no passage supporting the pathway changes to which the citation is attached. The Discussion also says the patients showed no behavioral improvement on the task. (LLM, conf=0.76)
hedgedconditional- Asserted: passes — The authors put it forward as true.
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It may state two separate claims as one.
- Partly supported
The cited sources support only part of this claim — read each source’s verdict below.
In the paper
“This suggests an increase in neurogenesis over normal levels that allows a catchup in mature granule neurons in MDD to regain levels seen in controls62, 121.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Treatment Induced Neuroplasticity
What the sources say
- Partly supportedcites [62] Boldrini M, Santiago AN, Hen R, Dwork AJ, Rosoklija GB, Tamir H, et al. Hippocampal granule neuron number and dentate gyrus volume in antidepressant-treated and untreated major depression. Neuropsychopharmacology. 2013;38:1068–77. sourceExperimental — accuracy not yet measured
The Results and Discussion (page unavailable) report that antidepressant-treated MDD subjects had granule neuron numbers comparable to controls and higher than untreated subjects in parts of the dentate gyrus. They do not establish that neurogenesis rose above normal levels or caused this apparent catch-up; the authors describe their cross-sectional findings as correlational and preliminary. (LLM, conf=0.88)
- Not checked yetcites [121] Duman RS, Nakagawa S, Malberg J. Regulation of adult neurogenesis by antidepressant treatment. Neuropsychopharmacology. 2001;25:836–44. source
hedgeddirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
- Partly supported
The cited sources support only part of this claim — read each source’s verdict below.
In the paper
“Recent studies suggest that blood levels of sertraline, a common first-line antidepressant, can successfully be predicted through analysis of genes involved in sertraline metabolism and thus, giving an indication of drug effectiveness204-206.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Treatment Induced Neuroplasticity
What the sources say
- Not checked yetcites [204] Islam F, Gorbovskaya I, Müller DJ. Pharmacogenetic/pharmacogenomic tests for treatment prediction in depression. Adv Exp Med Biol. 2021;1305:231–55. source
- Partly supportedcites [205] Claudio-Campos K, Padrón A, Jerkins G, Nainaparampil J, Nelson R, Martin A, et al. Acceptability, feasibility, and utility of integrating pharmacogenetic testing into a child psychiatry clinic. Clin Transl Sci. 2021;14:589–98. sourceExperimental — accuracy not yet measured
The Discussion (Challenges and solutions; page not provided) reports that pediatric CYP2C19 poor and intermediate metabolizers had higher maximum plasma concentrations of sertraline, supporting a link between metabolism-related genotype and blood levels. It does not establish that genetic analysis successfully predicts an individual's sertraline level or that the level indicates treatment effectiveness. The paper's clinical findings concern antidepressants collectively, not sertraline effectiveness specifically. (LLM, conf=0.86)
- Could not verifycites [206] Barrenschee M, Lange C, Cossais F, Egberts JH, Becker T, Wedel T, et al. Expression and function of Neuregulin 1 and its signaling system ERBB2/3 in the enteric nervous system. Front Cell Neurosci. 2015;9:360. sourceExperimental — accuracy not yet measured
The Results passages on NRG1, ERBB2 and ERBB3 expression in enteric neurons and human colon do not address sertraline. Searches for sertraline blood levels and drug-metabolism genes found no passage about predicting sertraline levels or effectiveness. Page numbers are unavailable in our copy. (LLM, conf=0.78)
hedgeddirect- Asserted: passes — The authors put it forward as true.
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- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a 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
“Therefore, different study populations may have different proportions of certain mood or cognitive subgroups of depression, explaining conflicting findings and the wide range in incidence of cognitive deficits.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Learning, Memory, and Mood: Network Changes in Depression
hedgedconditional- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“it has been estimated that cognitive deficits affect 20-90% of MDD patients22-27.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Learning, Memory, and Mood: Network Changes in Depression
What the sources say
- Not checked yetcites [22] McIntyre RS, Cha DS, Soczynska JK, Woldeyohannes HO, Gallaugher LA, Kudlow P, et al. Cognitive deficits and functional outcomes in major depressive disorder: determinants, substrates, and treatment interventions. Depress Anxiety. 2013;30:515–27. source
- Not checked yetcites [23] Conradi HJ, Ormel J, de Jonge P. Presence of individual (residual) symptoms during depressive episodes and periods of remission: a 3-year prospective study. Psychol Med. 2011;41:1165–74. source
- Not checked yetcites [24] Jaeger J, Berns S, Uzelac S, Davis-Conway S. Neurocognitive deficits and disability in major depressive disorder. Psychiatry Res. 2006;145:39–48. source
- Not checked yetcites [25] Kaser M, Zaman R, Sahakian BJ. Cognition as a treatment target in depression. Psychol Med. 2017;47:987–9. source
- Not checked yetcites [26] Siddarth P, Funes CM, Laird KT, Ercoli L, Lavretsky H. Predictors of cognitive improvement following treatment for late-life depression. J Geriatr Psychiatry Neurol. 2021;34:162–8. source
- Not checked yetcites [27] McAllister-Williams RH, Bones K, Goodwin GM, Harrison J, Katona C, Rasmussen J, et al. Analysing UK clinicians’ understanding of cognitive symptoms in major depression: a survey of primary care physicians and psychiatrists. J Affect Disord. 2017;207:346–52. source
hedged- Asserted: passes — The authors put it forward as true.
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- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
None of the sources cited for this claim have been checked yet.
In the paper
“Allostatic load is elevated in depression, which is associated with prolonged stress response, including elevated levels of cortisol associated with melancholia5, 21.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Introduction
What the sources say
- Not checked yetcites [5] Dahmen B, Puetz VB, Scharke W, von Polier GG, Herpertz-Dahlmann B, Konrad K. Effects of early-life adversity on hippocampal structures and associated HPA axis functions. Dev Neurosci. 2018;40:13–22. source
- Not checked yetcites [21] Wang Q, Van Heerikhuize J, Aronica E, Kawata M, Seress L, Joels M, et al. Glucocorticoid receptor protein expression in human hippocampus; stability with age. Neurobiol Aging. 2013;34:1662–73. source
plaincorrelational- Asserted: passes — The authors put it forward as true.
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In the paper
“First, the hippocampus plays a critical role in mood regulation, in part, due to its connections with emotion-related brain regions such as amygdala and anterior cingulate cortex (ACC)17, 18 as well as its feedback role in regulating the hypothalamus-pituitary-adrenal (HPA) axis.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Introduction
What the sources say
- Not checked yetcites [17] Ruiz S, Buyukturkoglu K, Rana M, Birbaumer N, Sitaram R. Real-time fMRI brain computer interfaces: self-regulation of single brain regions to networks. Biol Psychol. 2014;95:4–20. source
- Not checked yetcites [18] Schumacher A, Villaruel FR, Ussling A, Riaz S, Lee ACH, Ito R. Ventral hippocampal CA1 and CA3 differentially mediate learned approach-avoidance conflict processing. Curr Biol. 2018;28:1318–24.e4. source
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In the paper
“As such, hippocampal neuroplasticity has been implicated in MDD etiology and antidepressant action.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Introduction
plaincorrelational- Asserted: passes — The authors put it forward as true.
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- Rests on an assumption: High concentrations of hippocampal glucocorticoid receptors make the hippocampus particularly vulnerable to allostatic load.
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In the paper
“Furthermore, deficits in memory, attention and executive functioning have been observed in the absence of a current depressive episode28-31 and even in individuals responding well to antidepressant treatment for affective symptoms23, suggesting that cognitive deficits are only partly a state-dependent phenotype in MDD.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Learning, Memory, and Mood: Network Changes in Depression
What the sources say
- Not checked yetcites [28] Pu S, Noda T, Setoyama S, Nakagome K. Empirical evidence for discrete neurocognitive subgroups in patients with non-psychotic major depressive disorder: clinical implications. Psychol Med. 2018;48:2717–29. source
- Not checked yetcites [29] Hammar A, Sørensen L, Ardal G, Oedegaard KJ, Kroken R, Roness A, et al. Enduring cognitive dysfunction in unipolar major depression: a test-retest study using the Stroop paradigm. Scand J Psychol. 2010;51:304–8.
- Not checked yetcites [30] Semkovska M, Quinlivan L, O’Grady T, Johnson R, Collins A, O’Connor J, et al. Cognitive function following a major depressive episode: a systematic review and meta-analysis. Lancet Psychiatry. 2019;6:851–61. source
- Not checked yetcites [31] Perini G, Cotta Ramusino M, Sinforiani E, Bernini S, Petrachi R, Costa A. Cognitive impairment in depression: recent advances and novel treatments. Neuropsychiatr Dis Treat. 2019;15:1249–58. source
- Not checked yetcites [23] Conradi HJ, Ormel J, de Jonge P. Presence of individual (residual) symptoms during depressive episodes and periods of remission: a 3-year prospective study. Psychol Med. 2011;41:1165–74. source
hedgedcorrelational- Asserted: passes — The authors put it forward as true.
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In the paper
“Consequently, there has been a paradigm shift from a synaptic effect derived from the monoamine hypothesis to a more complex delayed downstream neuroplasticity hypothesis of antidepressant action that involves correcting a deficiency in neurons, processes and synapses that comprise the pathogenesis of depression.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Introduction
plaindirect- Asserted: passes — The authors put it forward as true.
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- Rests on an assumption: Antidepressant medications are pharmacologically active within hours, but their antidepressant effects are not apparent for weeks after starting treatment.
- Rests on an assumption: Even when antidepressants have meaningful pharmacologic effects, many patients do not improve.
- The authors state this as an assumption: The effects of antidepressants depend on downstream processes, such as increased neurogenesis, that take time to appear and are robust only in medication responders.
In the paper
“In healthy controls, when asked to downregulate emotional responses in the presence of an aversive stimuli, the PFC and ACC were hyperactivated and the amygdala was hypoactivated. When participants were asked to upregulate negative emotions in response to aversive stimuli, both the PFC and amygdala were activated47, suggesting a PFC-dependent cognitive component in emotional regulation in healthy”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Learning, Memory, and Mood: Network Changes in Depression
What the sources say
- Not checked yetcites [47] Ochsner KN, Ray RD, Cooper JC, Robertson ER, Chopra S, Gabrieli JD, et al. For better or for worse: neural systems supporting the cognitive down- and up-regulation of negative emotion. Neuroimage. 2004;23:483–99. source
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In the paper
“The association between DLPFC activity, memory and MDD has not been consistent, as others have reported DLPFC hypoactivity in conjunction with decreased working memory performance41, 42.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Learning, Memory, and Mood: Network Changes in Depression
What the sources say
- Not checked yetcites [41] Elliott R, Baker SC, Rogers RD, O’Leary DA, Paykel ES, Frith CD, et al. Prefrontal dysfunction in depressed patients performing a complex planning task: a study using positron emission tomography. Psychol Med. 1997;27:931–42. source
- Not checked yetcites [42] Okada G, Okamoto Y, Morinobu S, Yamawaki S, Yokota N. Attenuated left prefrontal activation during a verbal fluency task in patients with depression. Neuropsychobiology. 2003;47:21–6. source
plaincorrelational- Asserted: passes — The authors put it forward as true.
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In the paper
“Moreover, in MDD, the extent of hippocampal gray matter volume loss is related to time spent depressed58, 61 and smaller hippocampal volume is associated with worse depression scores.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A Balancing Act: Cell Death and Survival
What the sources say
- Not checked yetcites [58] Sheline YI, Wang PW, Gado MH, Csernansky JG, Vannier MW. Hippocampal atrophy in recurrent major depression. Proc Natl Acad Sci USA. 1996;93:3908–13. source
- Not checked yetcites [61] Roddy DW, Farrell C, Doolin K, Roman E, Tozzi L, Frodl T, et al. The hippocampus in depression: more than the sum of its parts? Advanced hippocampal substructure segmentation in depression. Biol Psychiatry. 2019;85:487–97. source
plaincorrelational- Asserted: passes — The authors put it forward as true.
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In the paper
“This is because BDNF can bind to tropomyosin kinase B (TrkB) receptor which activates the mechanistic target of rapamycin (mTOR) signaling pathway which promotes neuronal growth, proliferation and migration77.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A Balancing Act: Cell Death and Survival
What the sources say
- Not checked yetcites [77] Takei N, Nawa H. mTOR signaling and its roles in normal and abnormal brain development. Front Mol Neurosci. 2014;7:28. source
plaindirect- Asserted: passes — The authors put it forward as true.
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In the paper
“Neuroimaging studies have consistently reported DLPFC hypoactivity at rest in unmedicated MDDs37, 38 but DLPFC hyperactivity during working memory tasks39.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Learning, Memory, and Mood: Network Changes in Depression
What the sources say
- Not checked yetcites [37] Baxter LR, Schwartz JM, Phelps ME, Mazziotta JC, Guze BH, Selin CE, et al. Reduction of prefrontal cortex glucose metabolism common to three types of depression. Arch Gen Psychiatry. 1989;46:243–50. source
- Not checked yetcites [38] Soares JC, Mann JJ. The functional neuroanatomy of mood disorders. J Psychiatr Res. 1997;31:393–432. source
- Not checked yetcites [39] Harvey PO, Fossati P, Pochon JB, Levy R, Lebastard G, Lehéricy S, et al. Cognitive control and brain resources in major depression: an fMRI study using the n-back task. Neuroimage. 2005;26:860–9. source
boostedcorrelational- Asserted: passes — The authors put it forward as true.
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In the paper
“One potential process involved in neuronal loss is decreased brain-derived neurotrophic factor (BDNF) via histone modifications to the promoter region associated with downregulation of BDNF transcripts73, 74.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A Balancing Act: Cell Death and Survival
What the sources say
- Not checked yetcites [73] Lopez JP, Mamdani F, Labonte B, Beaulieu MM, Yang JP, Berlim MT, et al. Epigenetic regulation of BDNF expression according to antidepressant response. Mol Psychiatry. 2013;18:398–9. source
- Not checked yetcites [74] Tsankova NM, Berton O, Renthal W, Kumar A, Neve RL, Nestler EJ. Sustained hippocampal chromatin regulation in a mouse model of depression and antidepressant action. Nat Neurosci. 2006;9:519–25. source
hedgedcorrelational- Asserted: passes — The authors put it forward as true.
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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
“Additionally, focus on negative internal stimuli can result in more strongly encoding negative experiences and sustain negative thoughts and expectations, and underly a biased recall of negative relative to other memories in depressed patients.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Learning, Memory, and Mood: Network Changes in Depression
plaindirect- Asserted: passes — The authors put it forward as true.
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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
“Variations between hippocampal-amygdala connectivity during resting state and emotional and cognitive tasks suggests that this network is context-dependent and modulated by environmental stimuli and individual emotional state.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Learning, Memory, and Mood: Network Changes in Depression
hedgedcorrelational- Asserted: passes — The authors put it forward as true.
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It may state two separate claims as one.
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In the paper
“Most studies find that untreated depressed patients have smaller hippocampal volume58, 59, neuronal and glial number, and cell size60 compared with non-psychiatric controls.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A Balancing Act: Cell Death and Survival
What the sources say
- Not checked yetcites [58] Sheline YI, Wang PW, Gado MH, Csernansky JG, Vannier MW. Hippocampal atrophy in recurrent major depression. Proc Natl Acad Sci USA. 1996;93:3908–13. source
- Not checked yetcites [59] Luo Y, Cao Z, Wang D, Wu L, Li Y, Sun W, et al. Dynamic study of the hippocampal volume by structural MRI in a rat model of depression. Neurol Sci. 2014;35:1777–83. source
- Not checked yetcites [60] Czéh B, Simon M, Schmelting B, Hiemke C, Fuchs E. Astroglial plasticity in the hippocampus is affected by chronic psychosocial stress and concomitant fluoxetine treatment. Neuropsychopharmacology. 2006;31:1616–26. source
plaincorrelational- Asserted: passes — The authors put it forward as true.
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In the paper
“For example, in the absence of familial risk, early childhood trauma severity (operationalized via the Childhood Trauma Questionnaire) correlated with amygdala responsiveness and hippocampal volume loss in a group of healthy volunteers, and these associations were not influenced by recent life stress, depression or anxiety scores70.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A Balancing Act: Cell Death and Survival
What the sources say
- Not checked yetcites [70] Dannlowski U, Stuhrmann A, Beutelmann V, Zwanzger P, Lenzen T, Grotegerd D, et al. Limbic scars: long-term consequences of childhood maltreatment revealed by functional and structural magnetic resonance imaging. Biol Psychiatry. 2012;71:286–93. source
plaincorrelational- Asserted: passes — The authors put it forward as true.
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In the paper
“This concept has been demonstrated in an MRI study of PTSD which showed how smaller hippocampal volume predicted risk of PTSD and did not result from the trauma that triggered PTSD71.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A Balancing Act: Cell Death and Survival
What the sources say
- Not checked yetcites [71] Xie H, Claycomb Erwin M, Elhai JD, Wall JT, Tamburrino MB, Brickman KR, et al. Relationship of hippocampal volumes and posttraumatic stress disorder symptoms over early posttrauma periods. Biol Psychiatry Cogn Neurosci Neuroimaging. 2018;3:968–75.
boostedcorrelational- Asserted: passes — The authors put it forward as true.
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It may state two separate claims as one.
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In the paper
“Interestingly, there is disagreement over which regions of the hippocampus are smaller in depression. Some find volumetric sparing of CA164 while others report CA1 volume loss61, 65, 66. Some report volume loss selectively in the hippocampal head and others observed volume loss in the hippocampal body67.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A Balancing Act: Cell Death and Survival
What the sources say
- Not checked yetcites [64] Liu MN, Pantouw JG, Yang KC, Hu LY, Liou YJ, Lirng JF, et al. Sub-regional hippocampal volumes in first-episode drug-naïve major depression disorder. Neurosci Lett. 2021;763:136178. source
- Not checked yetcites [61] Roddy DW, Farrell C, Doolin K, Roman E, Tozzi L, Frodl T, et al. The hippocampus in depression: more than the sum of its parts? Advanced hippocampal substructure segmentation in depression. Biol Psychiatry. 2019;85:487–97. source
- Not checked yetcites [65] Frodl T, Carballedo A, Frey EM, O’Keane V, Skokauskas N, Morris D, et al. Expression of glucocorticoid inducible genes is associated with reductions in cornu ammonis and dentate gyrus volumes in patients with major depressive disorder. Dev Psychopathol. 2014;26:1209–17. source
- Not checked yetcites [66] Huang Y, Coupland NJ, Lebel RM, Carter R, Seres P, Wilman AH, et al. Structural changes in hippocampal subfields in major depressive disorder: a high-field magnetic resonance imaging study. Biol Psychiatry. 2013;74:62–8. source
- Not checked yetcites [67] Travis S, Coupland NJ, Silversone PH, Huang Y, Fujiwara E, Carter R, et al. Dentate gyrus volume and memory performance in major depressive disorder. J Affect Disord. 2015;172:159–64. source
plain- Asserted: passes — The authors put it forward as true.
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It may state two separate claims as one.
In the paper
“Interestingly, unmedicated adolescents with MDD showed less resting state fMRI (rsfMRI) connectivity between hippocampus and amygdala compared with healthy controls52. This lack of connectivity between hippocampus and amygdala correlated with severity of depression52.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Learning, Memory, and Mood: Network Changes in Depression
What the sources say
- Not checked yetcites [52] Cullen KR, Westlund MK, Klimes-Dougan B, Mueller BA, Houri A, Eberly LE, et al. Abnormal amygdala resting-state functional connectivity in adolescent depression. JAMA Psychiatry. 2014;71:1138–47. source
plaincorrelational- Asserted: passes — The authors put it forward as true.
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It may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Furthermore, in human and rodent studies, changes to hippocampal circuitry have been associated with early life adversity which suggests an epigenetic mechanism for these changes and MDD pathogenesis53, 54.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Learning, Memory, and Mood: Network Changes in Depression
What the sources say
- Not checked yetcites [53] Turecki G, Meaney MJ. Effects of the social environment and stress on glucocorticoid receptor gene methylation: a systematic review. Biol Psychiatry. 2016;79:87–96. source
- Not checked yetcites [54] Smith KE, Pollak SD. Early life stress and development: potential mechanisms for adverse outcomes. J Neurodev Disord. 2020;12:34. source
hedgedcorrelational- Asserted: passes — The authors put it forward as true.
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It may state two separate claims as one.
In the paper
“Smaller ACC, DLPFC, medial prefrontal cortex (MPFC) and hippocampus were shown in non-depressed individuals with a familial history of depression (first degree relative with MDD diagnosis) exposed to emotional neglect when compared to non-depressed individuals with no familial risk factors but who had been exposed to emotional neglect, suggesting a gene-environment interaction affecting cell”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A Balancing Act: Cell Death and Survival
What the sources say
- Not checked yetcites [69] Carballedo A, Lisiecka D, Fagan A, Saleh K, Ferguson Y, Connolly G, et al. Early life adversity is associated with brain changes in subjects at family risk for depression. World J Biol Psychiatry. 2012;13:569–78. source
hedgedcorrelational- Asserted: passes — The authors put it forward as true.
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It may state two separate claims as one.
In the paper
“The dorsolateral prefrontal cortex (DLPFC) is responsible for attention, working memory and executive function and is positively correlated with working memory load in healthy controls36.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Learning, Memory, and Mood: Network Changes in Depression
What the sources say
- Not checked yetcites [36] Braver TS, Cohen JD, Nystrom LE, Jonides J, Smith EE, Noll DC. A parametric study of prefrontal cortex involvement in human working memory. Neuroimage. 1997;5:49–62. source
plaincorrelational- Asserted: passes — The authors put it forward as true.
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Probably 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
“During embryonic development in rodents, primitive dentate progenitors from dentate neuroepithelium migrate along the dentate migratory stream to establish the primitive dentate gyrus89, 90. The majority of dentate granule neurons are generated during the first postnatal week90.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A role for adult hippocampal neurogenesis in depression pathology?
What the sources say
- Not checked yetcites [89] Urbán N, Guillemot F. Neurogenesis in the embryonic and adult brain: same regulators, different roles. Front Cell Neurosci. 2014;8:396. source
- Not checked yetcites [90] Bayer SA, Altman J. Hippocampal development in the rat: cytogenesis and morphogenesis examined with autoradiography and low-level X-irradiation. J Comp Neurol. 1974;158:55–79. source
plain- Asserted: passes — The authors put it forward as true.
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Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
In the paper
“While 14C decay-defined neuronal age estimates that the human brain adds up to 700 new neurons each day (approx. 0.004% of total DG neurons), resulting in a 1.7% cell turnover annually103”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A role for adult hippocampal neurogenesis in depression pathology?
What the sources say
- Not checked yetcites [103] Moreno-Jiménez EP, Terreros-Roncal J, Flor-García M, Rábano A, Llorens-Martín M. Evidences for adult hippocampal neurogenesis in humans. J Neurosci. 2021;41:2541–53. source
hedged- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably 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
“Humans receiving chemotherapy, which kills proliferating cells (thus blunting neurogenesis), experience cognitive deficits and are more likely to develop depression than cancer patients treated with other therapies128-130.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A role for adult hippocampal neurogenesis in depression pathology?
What the sources say
- Not checked yetcites [128] Wen S, Xiao H, Yang Y. The risk factors for depression in cancer patients undergoing chemotherapy: a systematic review. Support Care Cancer. 2019;27:57–67. source
- Not checked yetcites [129] Wigmore P. The effect of systemic chemotherapy on neurogenesis, plasticity and memory. Curr Top Behav Neurosci. 2013;15:211–40. source
- Not checked yetcites [130] Christie LA, Acharya MM, Parihar VK, Nguyen A, Martirosian V, Limoli CL. Impaired cognitive function and hippocampal neurogenesis following cancer chemotherapy. Clin Cancer Res. 2012;18:1954–65. source
plaindirect- Asserted: passes — The authors put it forward as true.
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It may state two separate claims as one.
In the paper
“Although less is known about embryonic hippocampal neurogenesis in humans, some studies suggest overlap in developmental timing and molecular signatures between the rodent and human brain91. The switch between developmental neurogenesis and AHN is gradual, and some sequencing studies have demonstrated these two processes share highly similar transcriptional trajectories91.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A role for adult hippocampal neurogenesis in depression pathology?
What the sources say
- Not checked yetcites [91] Hochgerner H, Zeisel A, Lönnerberg P, Linnarsson S. Conserved properties of dentate gyrus neurogenesis across postnatal development revealed by single-cell RNA sequencing. Nat Neurosci. 2018;21:290–9. source
hedgedcorrelational- Asserted: passes — The authors put it forward as true.
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It may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Some groups have reported absent or minimal hippocampal neurogenesis in the mature brain using double immunofluorescence targeting markers expressed by neuronal cells at different maturational stages95, 96 and single nucleus transcriptomics97.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A role for adult hippocampal neurogenesis in depression pathology?
What the sources say
- Not checked yetcites [95] Sorrells SF, Paredes MF, Cebrian-Silla A, Sandoval K, Qi D, Kelley KW, et al. Human hippocampal neurogenesis drops sharply in children to undetectable levels in adults. Nature. 2018;555:377–81. source
- Not checked yetcites [96] Cipriani S, Ferrer I, Aronica E, Kovacs GG, Verney C, Nardelli J, et al. Hippocampal radial glial subtypes and their neurogenic potential in human fetuses and healthy and Alzheimer’s disease adults. Cereb Cortex. 2018;28:2458–78. source
- Not checked yetcites [97] Franjic D, Skarica M, Ma S, Arellano JI, Tebbenkamp ATN, Choi J, et al. Transcriptomic taxonomy and neurogenic trajectories of adult human, macaque, and pig hippocampal and entorhinal cells. Neuron. 2021;110:452–69.e14. source
plain- Asserted: passes — The authors put it forward as true.
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Probably not a substantial claim. The paper’s conclusions may not depend on it.
In the paper
“Others have argued that these stem cells originated in the ventral hippocampus and migrated dorsally94.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A role for adult hippocampal neurogenesis in depression pathology?
What the sources say
- Not checked yetcites [94] Li G, Fang L, Fernández G, Pleasure SJ. The ventral hippocampus is the embryonic origin for adult neural stem cells in the dentate gyrus. Neuron. 2013;78:658–72. source
plain- Asserted: fails — The authors may not put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The authors may not put it forward as true. The paper’s conclusions may not depend on it.
None of the sources cited for this claim have been checked yet.
In the paper
“Some have demonstrated that neural stem cells in the adult hippocampal subgranular zone (SGZ) niche are remnants of dentate neuroepithelium92 and this same population of progenitors exclusively contributes to hippocampal neurogenesis throughout development and into adulthood, shifting out of quiescence at different time points93.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A role for adult hippocampal neurogenesis in depression pathology?
What the sources say
- Not checked yetcites [92] Seki T, Sato T, Toda K, Osumi N, Imura T, Shioda S. Distinctive population of Gfap-expressing neural progenitors arising around the dentate notch migrate and form the granule cell layer in the developing hippocampus. J Comp Neurol. 2014;522:261–83. source
- Not checked yetcites [93] Berg DA, Su Y, Jimenez-Cyrus D, Patel A, Huang N, Morizet D, et al. A common embryonic origin of stem cells drives developmental and adult neurogenesis. Cell. 2019;177:654–68.e15. source
boosted- Asserted: passes — The authors put it forward as true.
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Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
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In the paper
“Deficits in AHN may not only explain the learning and memory deficits in MDD, but also play a role in the selective engagement with negative valence memories, mood regulation and antidepressant response118-122.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A role for adult hippocampal neurogenesis in depression pathology?
What the sources say
- Not checked yetcites [118] David DJ, Samuels BA, Rainer Q, Wang JW, Marsteller D, Mendez I, et al. Neurogenesis-dependent and -independent effects of fluoxetine in an animal model of anxiety/depression. Neuron. 2009;62:479–93. source
- Not checked yetcites [119] Malberg JE, Eisch AJ, Nestler EJ, Duman RS. Chronic antidepressant treatment increases neurogenesis in adult rat hippocampus. J Neurosci. 2000;20:9104–10. source
- Not checked yetcites [120] Boldrini M, Underwood MD, Hen R, Rosoklija GB, Dwork AJ, John Mann J, et al. Antidepressants increase neural progenitor cells in the human hippocampus. Neuropsychopharmacology. 2009;34:2376–89. source
- Not checked yetcites [121] Duman RS, Nakagawa S, Malberg J. Regulation of adult neurogenesis by antidepressant treatment. Neuropsychopharmacology. 2001;25:836–44. source
- Not checked yetcites [122] Wang H, Warner-Schmidt J, Varela S, Enikolopov G, Greengard P, Flajolet M. Norbin ablation results in defective adult hippocampal neurogenesis and depressive-like behavior in mice. Proc Natl Acad Sci USA. 2015;112:9745–50. source
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In the paper
“in rodents, it has been estimated that up to 30-70% of newborn neurons die in the first month and that 1300 neurons are eliminated daily from the rodent hippocampus111, 112.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A role for adult hippocampal neurogenesis in depression pathology?
What the sources say
- Not checked yetcites [111] Dayer AG, Ford AA, Cleaver KM, Yassaee M, Cameron HA. Short-term and long-term survival of new neurons in the rat dentate gyrus. J Comp Neurol. 2003;460:563–72. source
- Not checked yetcites [112] Shors TJ, Townsend DA, Zhao M, Kozorovitskiy Y, Gould E. Neurogenesis may relate to some but not all types of hippocampal-dependent learning. Hippocampus. 2002;12:578–84. source
hedged- Asserted: passes — The authors put it forward as true.
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In the paper
“Additionally, BDNF expression was decreased in postmortem hippocampus in untreated MDDs but not in antidepressant-treated depressed individuals79.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A Balancing Act: Cell Death and Survival
What the sources say
- Not checked yetcites [79] Chen B, Dowlatshahi D, MacQueen GM, Wang JF, Young LT. Increased hippocampal BDNF immunoreactivity in subjects treated with antidepressant medication. Biol Psychiatry. 2001;50:260–5. source
plain- Asserted: passes — The authors put it forward as true.
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In the paper
“However, proxy measurements such as paired associative stimulation (PAS) using a transcranial magnetic stimulation protocol have shown that PAS-induced increases in motor-evoked potential amplitudes were attenuated during major depressive episodes compared with healthy controls and normalized during remission151, 152.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Molecular and Cellular Mechanisms of Neuroplasticity
What the sources say
- Not checked yetcites [151] Player MJ, Taylor JL, Weickert CS, Alonzo A, Sachdev P, Martin D, et al. Neuroplasticity in depressed individuals compared with healthy controls. Neuropsychopharmacology. 2013;38:2101–8. source
- Not checked yetcites [152] Moghaddam B, Bolinao ML, Stein-Behrens B, Sapolsky R. Glucocorticoids mediate the stress-induced extracellular accumulation of glutamate. Brain Res. 1994;655:251–4. source
plaindirect- Asserted: passes — The authors put it forward as true.
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In the paper
“Some have reported increased glutamate levels in the plasma of untreated MDD patients157, 158 in line with reports of high CSF glutamate concentrations in severely depressed, hospitalized MDD patients159 and in untreated elderly MDD patients when compared to healthy controls160.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Molecular and Cellular Mechanisms of Neuroplasticity
What the sources say
- Not checked yetcites [157] Altamura CA, Mauri MC, Ferrara A, Moro AR, D’Andrea G, Zamberlan F. Plasma and platelet excitatory amino acids in psychiatric disorders. Am J Psychiatry. 1993;150:1731–3. source
- Not checked yetcites [158] Levine J, Panchalingam K, Rapoport A, Gershon S, McClure RJ, Pettegrew JW. Increased cerebrospinal fluid glutamine levels in depressed patients. Biol Psychiatry. 2000;47:586–93. source
- Not checked yetcites [159] Hashimoto K, Bruno D, Nierenberg J, Marmar CR, Zetterberg H, Blennow K, et al. Abnormality in glutamine-glutamate cycle in the cerebrospinal fluid of cognitively intact elderly individuals with major depressive disorder: a 3-year follow-up study. Transl Psychiatry. 2016;6:e744. source
- Not checked yetcites [160] Kantrowitz JT, Dong Z, Milak MS, Rashid R, Kegeles LS, Javitt DC, et al. Ventromedial prefrontal cortex/anterior cingulate cortex Glx, glutamate, and GABA levels in medication-free major depressive disorder. Transl Psychiatry. 2021;11:419. source
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In the paper
“Synaptic strength moderates neural signaling between cells over an extended period175, 176, underlying circuit functionality.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Molecular and Cellular Mechanisms of Neuroplasticity
What the sources say
- Not checked yetcites [175] Ho VM, Lee JA, Martin KC. The cell biology of synaptic plasticity. Science. 2011;334:623–8. source
- Not checked yetcites [176] Harmer CJ, Duman RS, Cowen PJ. How do antidepressants work? New perspectives for refining future treatment approaches. Lancet Psychiatry. 2017;4:409–18. source
plaindirect- Asserted: passes — The authors put it forward as true.
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Probably not a substantial claim. The paper’s conclusions may not depend on it.
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In the paper
“In vivo proton magnetic resonance spectroscopy (1H MRS) detected elevated glutamate levels in ventromedial prefrontal cortex/anterior cingulate cortex in untreated MDD161 consistent with a recent meta-analysis of MRS imaging studies that found higher glutamate/glutamine concentrations in medial frontal cortex of unmedicated MDD but not in antidepressant-treated patients162.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Molecular and Cellular Mechanisms of Neuroplasticity
What the sources say
- Not checked yetcites [161] Moriguchi S, Takamiya A, Noda Y, Horita N, Wada M, Tsugawa S, et al. Glutamatergic neurometabolite levels in major depressive disorder: a systematic review and meta-analysis of proton magnetic resonance spectroscopy studies. Mol Psychiatry. 2019;24:952–64. source
- Not checked yetcites [162] Yuen EY, Wei J, Liu W, Zhong P, Li X, Yan Z. Repeated stress causes cognitive impairment by suppressing glutamate receptor expression and function in prefrontal cortex. Neuron. 2012;73:962–77. source
plaincorrelational- Asserted: passes — The authors put it forward as true.
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In the paper
“Thus, it is possible that, like in rodents, the role of newborn neurons in humans is predominately for conferring resilience on the hippocampal circuitry, and possibly facilitating circuit rewiring for the antidepressant response.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > A role for adult hippocampal neurogenesis in depression pathology?
hedgedconditional- Asserted: passes — The authors put it forward as true.
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In the paper
“These studies have generally observed increases in DG LTP147 and reductions in LTP at Schaffer collaterals-CA1 synapses148, 149 in response to acute and chronic stress.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Molecular and Cellular Mechanisms of Neuroplasticity
What the sources say
- Not checked yetcites [147] Alfarez DN, Joëls M, Krugers HJ. Chronic unpredictable stress impairs long-term potentiation in rat hippocampal CA1 area and dentate gyrus in vitro. Eur J Neurosci. 2003;17:1928–34. source
- Not checked yetcites [148] Chaouloff F, Hémar A, Manzoni O. Acute stress facilitates hippocampal CA1 metabotropic glutamate receptor-dependent long-term depression. J Neurosci. 2007;27:7130–5. source
- Not checked yetcites [149] Maggio N, Segal M. Striking variations in corticosteroid modulation of long-term potentiation along the septotemporal axis of the hippocampus. J Neurosci. 2007;27:5757–65. source
plaindirect- Asserted: passes — The authors put it forward as true.
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In the paper
“The transcription of BDNF is dependent upon activation of the cyclic adenosine monophosphate (cAMP) response element binding protein (CREB) protein which plays a critical role in LTP and synaptic plasticity142, 143.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Molecular and Cellular Mechanisms of Neuroplasticity
What the sources say
- Not checked yetcites [142] Won J, Silva AJ. Molecular and cellular mechanisms of memory allocation in neuronetworks. Neurobiol Learn Mem. 2008;89:285–92. source
- Not checked yetcites [143] Tejeda GS, Díaz-Guerra M. Integral Characterization of defective BDNF/TrkB signalling in neurological and psychiatric disorders leads the way to new therapies. Int J Mol Sci. 2017;18:1–24. source
plaindirect- Asserted: passes — The authors put it forward as true.
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In the paper
“BDNF+/− mice show less dendritic branching as well as dendritic retraction and simplification in CA381 and DG80 and dysregulation of BDNF/TrkB pathways has been reported in MDD and animal models of depression78, 169-171.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Molecular and Cellular Mechanisms of Neuroplasticity
What the sources say
- Not checked yetcites [81] Magariños AM, Li CJ, Gal Toth J, Bath KG, Jing D, Lee FS, et al. Effect of brain-derived neurotrophic factor haploinsufficiency on stress-induced remodeling of hippocampal neurons. Hippocampus. 2011;21:253–64. source
- Not checked yetcites [80] Chen ZY, Jing D, Bath KG, Ieraci A, Khan T, Siao CJ, et al. Genetic variant BDNF (Val66Met) polymorphism alters anxiety-related behavior. Science. 2006;314:140–3. source
- Not checked yetcites [78] Strauss J, Barr CL, George CJ, Ryan CM, King N, Shaikh S, et al. BDNF and COMT polymorphisms: relation to memory phenotypes in young adults with childhood-onset mood disorder. Neuromolecular Med. 2004;5:181–92. source
- Not checked yetcites [169] Martinowich K, Lu B. Interaction between BDNF and serotonin: role in mood disorders. Neuropsychopharmacology. 2008;33:73–83. source
- Not checked yetcites [170] Kim YK, Lee HP, Won SD, Park EY, Lee HY, Lee BH, et al. Low plasma BDNF is associated with suicidal behavior in major depression. Prog Neuropsychopharmacol Biol Psychiatry. 2007;31:78–85. source
- Not checked yetcites [171] Xu Y, Ku B, Tie L, Yao H, Jiang W, Ma X, et al. Curcumin reverses the effects of chronic stress on behavior, the HPA axis, BDNF expression and phosphorylation of CREB. Brain Res. 2006;1122:56–64. source
plaindirect- Asserted: passes — The authors put it forward as true.
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In the paper
“Normal stress responses involve glutamate release which downregulates AMPA and NMDA receptor expression, glutamate clearance by glia, and less dendritic spine and process complexity163, 164.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Molecular and Cellular Mechanisms of Neuroplasticity
What the sources say
- Not checked yetcites [163] Floriou-Servou A, von Ziegler L, Waag R, Schläppi C, Germain PL, Bohacek J. The acute stress response in the multiomic era. Biol Psychiatry. 2021;89:1116–26. source
- Not checked yetcites [164] Bernard R, Kerman IA, Thompson RC, Jones EG, Bunney WE, Barchas JD, et al. Altered expression of glutamate signaling, growth factor, and glia genes in the locus coeruleus of patients with major depression. Mol Psychiatry. 2011;16:634–46. source
plaindirect- Asserted: passes — The authors put it forward as true.
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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
“As such, lower glutamate may be an antidepressant effect and not part of MDD pathogenesis.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Molecular and Cellular Mechanisms of Neuroplasticity
hedgedconditional- Asserted: passes — The authors put it forward as true.
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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
“Dendritic retraction may be an adaptive way to protect neurons from high glutamate transmission, resulting in less LTP and cognitive decline.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Molecular and Cellular Mechanisms of Neuroplasticity
hedgedconditional- Asserted: passes — The authors put it forward as true.
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Probably not a substantial claim. The paper’s conclusions may not depend on it. The paper may give no reason why it holds. It may state two separate claims as one.
In the paper
“Exposure to stress attenuates LTP in dorsal hippocampus but augments LTP in ventral hippocampus of rodents150, which may explain memory deficits in the presence of strong emotional responses.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Molecular and Cellular Mechanisms of Neuroplasticity
What the sources say
- Not checked yetcites [150] Kuhn M, Mainberger F, Feige B, Maier JG, Mall V, Jung NH, et al. State-dependent partial occlusion of cortical LTP-like plasticity in major depression. Neuropsychopharmacology. 2016;41:2794. source
hedgeddirect- Asserted: passes — The authors put it forward as true.
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In the paper
“In fact, rodent studies have shown that infusion of ketamine onto hippocampal neurons caused dose-dependent apoptosis, which was rescued by incubation with rapamycin (an inhibitor of mTOR), suggesting context-dependent benefits of ketamine196.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Treatment Induced Neuroplasticity
What the sources say
- Not checked yetcites [196] Zorumski CF, Izumi Y, Mennerick S. Ketamine: NMDA receptors and beyond. J Neurosci. 2016;36:11158–64. source
hedgeddirect- Asserted: passes — The authors put it forward as true.
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In the paper
“Psychedelic drugs likely work via 5-HT2A receptors but require more research to elucidate their antidepressant effects202.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Treatment Induced Neuroplasticity
What the sources say
- Not checked yetcites [202] Lenze EJ, Nicol GE, Barbour DL, Kannampallil T, Wong AWK, Piccirillo J, et al. Precision clinical trials: a framework for getting to precision medicine for neurobehavioural disorders. J Psychiatry Neurosci. 2021;46:E97–110. source
hedgedconditional- Asserted: passes — The authors put it forward as true.
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Probably not a substantial claim. The paper’s conclusions may not depend on it.
In the paper
“Rodent models of depression show that ketamine administration increases dendritic spine density, length, arborization and morphology in CA1 pyramidal neurons201.”
§ Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications > Treatment Induced Neuroplasticity
What the sources say
- Not checked yetcites [201] Artin H, Zisook S, Ramanathan D. How do serotonergic psychedelics treat depression: the potential role of neuroplasticity. World J Psychiatry. 2021;11:201–14. source
plaindirect- Asserted: passes — The authors put it forward as true.
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It may state two separate claims as one.
The paper relies on this without support.
Antidepressant medications are pharmacologically active within hours, but their antidepressant effects are not apparent for weeks after starting treatment.
“First, although these medications are pharmacologically active within hours, their antidepressant effects are not apparent for weeks after starting treatment.”
The paper relies on this without support.
Even when antidepressants have meaningful pharmacologic effects, many patients do not improve.
“Second, even when the medications are having meaningful pharmacologic effects, many patients do not improve.”
The authors state this as an assumption.
The effects of antidepressants depend on downstream processes, such as increased neurogenesis, that take time to appear and are robust only in medication responders.
“The most widely accepted response to both questions is to assume that the effects of antidepressants are dependent on downstream processes, such as an increase in neurogenesis, that take time to appear and are only robust in medication responders.”
The paper relies on this without support.
High concentrations of hippocampal glucocorticoid receptors make the hippocampus particularly vulnerable to allostatic load.
“Third, given its role in HPA axis regulation, the high concentrations of hippocampal glucocorticoid receptors make it particularly vulnerable to allostatic load.”
The paper relies on this without support.
Hippocampal volume loss is not pathognomonic for depression and can occur in the presence of environmental stressors, other psychiatric conditions, and neurodegenerative diseases.
“Hippocampal volume loss is not pathognomonic for depression and can occur in the presence of environmental stressors, other psychiatric conditions, and neurodegenerative diseases.”
The paper relies on this without support.
Traditional antidepressants act on the monoaminergic system to increase synaptic monoamine neurotransmitter levels.
“As previously discussed, traditional antidepressants target the monoaminergic system to increase levels of monoaminergic neurotransmitters in the synapse.”
The paper relies on this without support.
To increase LTP, some NMDA receptors must remain available.
“The dosage and affinity are important because, to increase LTP, some NMDA receptors must be available.”
The paper relies on this without support.
Neuroplasticity is integral to healthy cognitive and affective functioning.
“Neuroplasticity is integral to healthy cognitive and affective functioning.”
The paper relies on this without support.
Major depressive disorder clinical heterogeneity remains poorly understood, particularly how it relates to pathogenesis and treatment choices.
“MDD clinical heterogeneity remains poorly understood, particularly in terms of how it relates to pathogenesis and implications for treatment choices.”
The paper relies on this without support.
The duration or presence of major depression correlates with declines in neuroplasticity.
“While duration or presence of major depression correlates with declines in neuroplasticity, administration of antidepressants may reverse some of the neurobiological changes observed in MDD (Figure 4).”
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?
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In the citing paper
“Within this framework, glutamate serves as the principal excitatory neurotransmitter and the primary molecular interface between acute cellular activation and longer-term synaptic remodeling [38,39].”
From Synaptic Plasticity—Intrinsic Excitability and Antidepressant Discovery (2026) · cites this paper as [39]
Experimental — accuracy not yet measuredIn the citing paper
“The dentate gyrus is a unique source of ongoing neurogenesis in the adult brain, at least in nonhuman animals, and there is preclinical evidence that the birth and maturation of new granule cells may play a role in depression and antidepressant drug actions [89].”
From Plasticity of synapses and reward circuit function in the genesis and treatment of depression (2023) · cites this paper as [89]
Citations
Cites
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“Negative correlations indicate that when one brain region is activated the other is deactivated while positive correlations indicate brain synchronicity when regions are activated or inhibited at the same time [43].”
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“Second, the hippocampus is one of the few brain regions thought to be capable of adult neurogenesis [19, 20].”
BackgroundRequirement of hippocampal neurogenesis for the behavioral effects of antidepressants
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“Moreover, in MDD, the extent of hippocampal gray matter volume loss is related to time spent depressed [58, 61] and smaller hippocampal volume is associated with worse depression scores.”
BackgroundDynamics of hippocampal neurogenesis in adult humans
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“throughout adulthood using double immunofluorescence [20, 98–100], in situ hybridization [101] and (14)C decay-defined neuronal age [102].”
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“The transcription of BDNF is dependent upon activation of the cyclic adenosine monophosphate (cAMP) response element binding protein (CREB) protein which plays a critical role in LTP and synaptic plasticity [141, 142].”
BackgroundSustained hippocampal chromatin regulation in a mouse model of depression and antidepressant action
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“One potential process involved in neuronal loss is decreased brain-derived neurotrophic factor (BDNF) via histone modifications to the promoter region associated with downregulation of BDNF transcripts [73, 74].”
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ResultNeural Substrates of Increased Memory Sensitivity for Negative Stimuli in Major Depression
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BackgroundSelf-citationImpaired Cognitive Function and Hippocampal Neurogenesis following Cancer Chemotherapy
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BackgroundLow plasma BDNF is associated with suicidal behavior in major depression
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State-dependent changes in hippocampal grey matter in depression
Arnone, D., McKie, S., Elliott, R., Juhasz, G., Thomas, E. J., Downey, D., Williams, S., Deakin, J. F. W., & Anderson, I. M. (2013) · Molecular Psychiatry · doi:10.1038/mp.2012.150 · Cited by 287
Roddy, D. W., Farrell, C., Doolin, K., Roman, E., Tozzi, L., Frodl, T., O’Keane, V., & O’Hanlon, E. (2019) · Biological Psychiatry · doi:10.1016/j.biopsych.2018.08.021 · Cited by 287 · cited 2×
“Moreover, in MDD, the extent of hippocampal gray matter volume loss is related to time spent depressed [58, 61] and smaller hippocampal volume is associated with worse depression scores.”
BackgroundBDNF promotes differentiation and maturation of adult-born neurons through GABAergic transmission
Waterhouse, E. G., An, J. J., Orefice, L. L., Baydyuk, M., Liao, G.-Y., Zheng, K., Lu, B., & Xu, B. (2012) · The Journal of Neuroscience · doi:10.1523/jneurosci.0709-12.2012 · Cited by 287 · cited 1×
“Given its role in neuronal maturation and differentiation [75] as well as its neuroprotective effects [76], low brain levels of BDNF may affect neuronal viability in MDD.”
BackgroundEvidences for Adult Hippocampal Neurogenesis in Humans
Moreno-Jiménez, E. P., Terreros-Roncal, J., Flor-García, M., Rábano, A., & Llorens-Martín, M. (2021) · The Journal of Neuroscience · doi:10.1523/jneurosci.0675-20.2020 · Cited by 272
A Common Embryonic Origin of Stem Cells Drives Developmental and Adult Neurogenesis
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“Studies using rsfMRI detect DLPFC hypoactivity in untreated MDD, and SSRIs increase DLPFC activity to a level comparable with nonpsychiatric controls [178].”
MethodGrønli, J., Bramham, C., Murison, R., Kanhema, T., Fiske, E., Bjorvatn, B., Ursin, R., & Portas, C. M. (2006) · Pharmacology Biochemistry and Behavior · doi:10.1016/j.pbb.2006.11.021 · Cited by 260
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Ketamine: NMDA Receptors and Beyond
Zorumski, C. F., Izumi, Y., & Mennerick, S. (2016) · The Journal of Neuroscience · doi:10.1523/jneurosci.1547-16.2016 · Cited by 254 · cited 1×
“Nevertheless, it is hypothesized that when ketamine binds to NMDA receptors, the glutamate in the synapses of excitatory pyramidal neurons in the hippocampus [196] and PFC [197, 198] shift transmission to AMPA receptors, and thereby strengthens synaptic connections driving synaptogenesis [199].”
BackgroundMatsuo, K., Glahn, D. C., Peluso, M. A. M., Hatch, J. P., Monkul, E. S., Najt, P., Sanches, M., Zamarripa, F., Li, J., Lancaster, J. L., et al. (2007) · Molecular Psychiatry · doi:10.1038/sj.mp.4001894 · Cited by 251 · cited 1×
“Yet, this hyperactivity is not matched with increased memory performance [40].”
BackgroundFrom Serotonin to Neuroplasticity: Evolvement of Theories for Major Depressive Disorder
Liu, B., Liu, J., Wang, M., Zhang, Y., & Li, L. (2017) · Frontiers in Cellular Neuroscience · doi:10.3389/fncel.2017.00305 · Cited by 249
New neurons for 'survival of the fittest'
Kempermann, G. (2012) · Nature reviews. Neuroscience · doi:10.1038/nrn3319 · Cited by 244
Plasma and platelet excitatory amino acids in psychiatric disorders
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“Some have reported increased glutamate levels in the plasma of untreated MDD patients [156, 157] in line with reports of high CSF glutamate concentrations in severely depressed, hospitalized MDD patients [158] and in untreated elderly MDD patients when compared to healthy controls [159].”
ResultState-dependent responses to intracranial brain stimulation in a patient with depression
Scangos, K. W., Makhoul, G. S., Sugrue, L. P., Chang, E. F., & Krystal, A. D. (2021) · Nature Medicine · doi:10.1038/s41591-020-01175-8 · Cited by 243
Petrik, D., Lagace, D. C., & Eisch, A. J. (2012) · Neuropharmacology · doi:10.1016/j.neuropharm.2011.09.003 · Cited by 241 · cited 1×
“A few studies provide evidence that the absence of neurogenesis elicits depressive like symptoms in rodents [122, 123], but most studies find that absent neurogenesis is not sufficient to induce a depressive phenotype [124] although it is required in mice for the behavioral effects of antidepressants [117, 125].”
BackgroundA Unified Model of the Presynaptic and Postsynaptic Changes During LTP at CA1 Synapses
Lisman, J., & Raghavachari, S. (2006) · Science's STKE · doi:10.1126/stke.3562006re11 · Cited by 241
Increased cerebrospinal fluid glutamine levels in depressed patients
Levine, J., Panchalingam, K., Rapoport, A., Gershon, S., McClure, R. J., & Pettegrew, J. W. (2000) · Biological Psychiatry · doi:10.1016/s0006-3223(99)00284-x · Cited by 240 · cited 1×
“Some have reported increased glutamate levels in the plasma of untreated MDD patients [156, 157] in line with reports of high CSF glutamate concentrations in severely depressed, hospitalized MDD patients [158] and in untreated elderly MDD patients when compared to healthy controls [159].”
ResultMagariños, A. M., Li, C. J., Gal Toth, J., Bath, K. G., Jing, D., Lee, F. S., & McEwen, B. S. (2011) · Hippocampus · doi:10.1002/hipo.20744 · Cited by 232
Maggio, N., & Segal, M. (2007) · The Journal of Neuroscience · doi:10.1523/jneurosci.0155-07.2007 · Cited by 230 · cited 1×
“Exposure to stress attenuates LTP in dorsal hippocampus but augments LTP in ventral hippocampus of rodents [149], which may explain memory deficits in the presence of strong emotional responses.”
BackgroundRelation Between Structural and Functional Connectivity in Major Depressive Disorder
de Kwaasteniet, B., Ruhe, E., Caan, M., Rive, M., Olabarriaga, S., Groefsema, M., Heesink, L., van Wingen, G., & Denys, D. (2013) · Biological Psychiatry · doi:10.1016/j.biopsych.2012.12.024 · Cited by 229
Aleksandrova, L. R., Phillips, A. G., & Wang, Y. T. (2017) · Journal of Psychiatry and Neuroscience · doi:10.1503/jpn.160175 · Cited by 228 · cited 14×
“The dorsolateral prefrontal cortex (DLPFC) is responsible for attention, working memory and executive function and is positively correlated with working memory load in healthy controls [36].”
BackgroundInfluentialBienkowski, M. S., Bowman, I., Song, M. Y., Gou, L., Ard, T., Cotter, K., Zhu, M., Benavidez, N. L., Yamashita, S., Abu-Jaber, J., et al. (2018) · Nature Neuroscience · doi:10.1038/s41593-018-0241-y · Cited by 224
Amelioration of Cognitive Control in Depression by Transcranial Direct Current Stimulation
Wolkenstein, L., & Plewnia, C. (2013) · Biological Psychiatry · doi:10.1016/j.biopsych.2012.10.010 · Cited by 213 · cited 1×
“A double-blinded randomized trial showed enhanced working memory in MDD patients during emotional conditions [182] after transcranial stimulation of the left DLPFC.”
BackgroundJoormann, J., Levens, S. M., & Gotlib, I. H. (2011) · Psychological Science · doi:10.1177/0956797611415539 · Cited by 209
Sun, W., Winseck, A. K., Vinsant, S. L., Park, O., Kim, H., & Oppenheim, R. W. (2004) · Journal of Neuroscience · doi:10.1523/jneurosci.1436-04.2004 · Cited by 203
Cell atrophy and loss in depression: reversal by antidepressant treatment
Banasr, M., Dwyer, J. M., & Duman, R. S. (2011) · Current Opinion in Cell Biology · doi:10.1016/j.ceb.2011.09.002 · Cited by 201 · cited 1×
“Currently, reported mechanisms potentially underlying cell loss include, but are not limited to, glutamate/glutamine cycling (see section on Molecular and Cellular Mechanisms of Neuroplasticity), blunted neurogenesis, decreased neurotrophic factor expression and upregulation of proapoptotic pathways [72].”
BackgroundBalu, D. T., Hoshaw, B. A., Malberg, J. E., Rosenzweig-Lipson, S., Schechter, L. E., & Lucki, I. (2008) · Brain Research · doi:10.1016/j.brainres.2008.03.023 · Cited by 194
Real-time fMRI brain computer interfaces: Self-regulation of single brain regions to networks
Ruiz, S., Buyukturkoglu, K., Rana, M., Birbaumer, N., & Sitaram, R. (2014) · Biological Psychology · doi:10.1016/j.biopsycho.2013.04.010 · Cited by 187
Subunit-specific mechanisms and proton sensitivity of NMDA receptor channel block
Dravid, S. M., Erreger, K., Yuan, H., Nicholson, K., Le, P., Lyuboslavsky, P., Almonte, A., Murray, E., Mosley, C., Barber, J., et al. (2007) · The Journal of Physiology · doi:10.1113/jphysiol.2006.124958 · Cited by 184
Huang, Y., Coupland, N. J., Lebel, R. M., Carter, R., Seres, P., Wilman, A. H., & Malykhin, N. V. (2013) · Biological Psychiatry · doi:10.1016/j.biopsych.2013.01.005 · Cited by 179 · cited 1×
“Some find volumetric sparing of CA1 [64] while others report CA1 volume loss [61, 65, 66].”
BackgroundAttenuated Left Prefrontal Activation during a Verbal Fluency Task in Patients with Depression
Okada, G., Okamoto, Y., Morinobu, S., Yamawaki, S., & Yokota, N. (2003) · Neuropsychobiology · doi:10.1159/000068871 · Cited by 178 · cited 1×
“The association between DLPFC activity, memory and MDD has not been consistent, as others have reported DLPFC hypoactivity in conjunction with decreased working memory performance [41, 42].”
ResultThe Ventral Hippocampus Is the Embryonic Origin for Adult Neural Stem Cells in the Dentate Gyrus
Li, G., Fang, L., Fernández, G., & Pleasure, S. J. (2013) · Neuron · doi:10.1016/j.neuron.2013.03.019 · Cited by 171 · cited 1×
“Others have argued that these stem cells originated in the ventral hippocampus and migrated dorsally [94].”
BackgroundCipriani, S., Ferrer, I., Aronica, E., Kovacs, G. G., Verney, C., Nardelli, J., Khung, S., Delezoide, A.-L., Milenkovic, I., Rasika, S., et al. (2018) · Cerebral Cortex · doi:10.1093/cercor/bhy096 · Cited by 169 · cited 1×
“Some groups have reported absent or minimal hippocampal neurogenesis in the mature brain using double immunofluorescence targeting markers expressed by neuronal cells at different maturational stages [95, 96] and single nucleus transcriptomics [97].”
BackgroundKosten, T. A., Galloway, M. P., Duman, R. S., Russell, D. S., & D'Sa, C. (2008) · Neuropsychopharmacology · doi:10.1038/sj.npp.1301527 · Cited by 165
Schlaepfer, T. E., Bewernick, B. H., Kayser, S., Hurlemann, R., & Coenen, V. A. (2014) · Neuropsychopharmacology · doi:10.1038/npp.2014.28 · Cited by 160
Küçükibrahimoğlu, E., Saygın, M. Z., Çalışkan, M., Kaplan, O. K., Ünsal, C., & Gören, M. Z. (2009) · European Journal of Clinical Pharmacology · doi:10.1007/s00228-009-0650-7 · Cited by 155
Hippocampal/amygdala volumes in geriatric depression
Ashtari, M., GREENWALD, B. S., Kramer‐Ginsberg, E., Hu, J. Y., Wu, H., Patel, M. C., Aupperle, P. M., & POLLACK, S. (1999) · Psychological Medicine · doi:10.1017/s0033291799008405 · Cited by 154
Sheline, Y. I., Liston, C. M., & McEwen, B. S. (2019) · Biological Psychiatry · doi:10.1016/j.biopsych.2019.01.011 · Cited by 151 · cited 1×
“Neuroplasticity is defined as the brain’s ability to undergo neurobiological changes in response to extrinsic stimuli such as early life adversity [5–7] and chronic exposure to stress [8, 9] and/ or intrinsic stimuli most notably genetic or epigenetic effects [10, 11].”
BackgroundEpigenetic regulation of BDNF expression according to antidepressant response
Lopez, J. P., Mamdani, F., Labonte, B., Beaulieu, M.-M., Yang, J. P., Berlim, M. T., Ernst, C., & Turecki, G. (2013) · Molecular Psychiatry · doi:10.1038/mp.2012.38 · Cited by 146 · cited 1×
“One potential process involved in neuronal loss is decreased brain-derived neurotrophic factor (BDNF) via histone modifications to the promoter region associated with downregulation of BDNF transcripts [73, 74].”
BackgroundHippocampal morphometry in depressed patients and control subjects: relations to anxiety symptoms
Rusch, B. D., Abercrombie, H. C., Oakes, T. R., Schaefer, S. M., & Davidson, R. J. (2001) · Biological Psychiatry · doi:10.1016/s0006-3223(01)01248-3 · Cited by 145 · cited 1×
“Although some studies report no volumetric differences between MDD patients and healthy controls [55–57], these studies included patients who were either currently on antidepressants [56] or had been on antidepressants at some point in their life [55].”
ResultGlucocorticoid receptor protein expression in human hippocampus; stability with age
Wang, Q., Van Heerikhuize, J., Aronica, E., Kawata, M., Seress, L., Joels, M., Swaab, D. F., & Lucassen, P. J. (2013) · Neurobiology of Aging · doi:10.1016/j.neurobiolaging.2012.11.019 · Cited by 144 · cited 1×
“Allostatic load is elevated in depression, which is associated with prolonged stress response, including elevated levels of cortisol associated with melancholia [5, 21].”
BackgroundRegulation of Adult Neurogenesis in Mammalian Brain
Niklison-Chirou, M. V., Agostini, M., Amelio, I., & Melino, G. (2020) · International Journal of Molecular Sciences · doi:10.3390/ijms21144869 · Cited by 143 · cited 2×
“In fact, the inability to produce more neurons appears to make the animal vulnerable to the epigenetic effects of chronic stress and subsequently the development of a depressive phenotype [88].”
BackgroundJay, T. M., Rocher, C., Hotte, M., Naudon, L., Gurden, H., & Spedding, M. (2004) · Neurotoxicity Research · doi:10.1007/bf03033225 · Cited by 141
Monoamine Theories of Depression: Historical Impact on Biomedical Research
Mulinari, S. (2012) · Journal of the History of the Neurosciences · doi:10.1080/0964704x.2011.623917 · Cited by 137
Blockade of Astrocytic Glutamate Uptake in the Prefrontal Cortex Induces Anhedonia
John, C. S., Smith, K. L., Van'T Veer, A., Gompf, H. S., Carlezon, W. A., Cohen, B. M., Öngür, D., & Bechtholt-Gompf, A. J. (2012) · Neuropsychopharmacology · doi:10.1038/npp.2012.105 · Cited by 136
Depression and rumination: Relation to components of inhibition
Zetsche, U., D'Avanzato, C., & Joormann, J. (2012) · Cognition & Emotion · doi:10.1080/02699931.2011.613919 · Cited by 134
Serotonergic psychedelics and personality: A systematic review of contemporary research
Bouso, J. C., dos Santos, R. G., Alcázar-Córcoles, M. Á., & Hallak, J. E. C. (2018) · Neuroscience & Biobehavioral Reviews · doi:10.1016/j.neubiorev.2018.02.004 · Cited by 134
Novel neuroimmunologic therapeutics in depression: A clinical perspective on what we know so far
Roman, M., & Irwin, M. R. (2020) · Brain, Behavior, and Immunity · doi:10.1016/j.bbi.2019.09.016 · Cited by 132
Neuroplasticity in Depressed Individuals Compared with Healthy Controls
Player, M. J., Taylor, J. L., Weickert, C. S., Alonzo, A., Sachdev, P., Martin, D., Mitchell, P. B., & Loo, C. K. (2013) · Neuropsychopharmacology · doi:10.1038/npp.2013.126 · Cited by 127 · cited 1×
“However, proxy measurements such as paired associative stimulation (PAS) using a transcranial magnetic stimulation protocol have shown that PAS-induced increases in motor-evoked potential amplitudes were attenuated during major depressive episodes compared with healthy controls and normalized during remission [150, 15…”
BackgroundTejeda, G., & Díaz-Guerra, M. (2017) · International Journal of Molecular Sciences · doi:10.3390/ijms18020268 · Cited by 126 · cited 1×
“, MAPK/ERK, PI3K, mTOR) [143] responsible for spine enlargement and glutamate sensitivity [144] (Fig.”
BackgroundOwens, M. J. (2004) · PubMed · Cited by 123
Effects of Early-Life Adversity on Hippocampal Structures and Associated HPA Axis Functions
Dahmen, B., Puetz, V. B., Scharke, W., von Polier, G. G., Herpertz-Dahlmann, B., & Konrad, K. (2018) · Developmental Neuroscience · doi:10.1159/000484238 · Cited by 121 · cited 1×
“Allostatic load is elevated in depression, which is associated with prolonged stress response, including elevated levels of cortisol associated with melancholia [5, 21].”
BackgroundCao, X., Liu, Z., Xu, C., Li, J., Gao, Q., Sun, N., Xu, Y., Ren, Y., Yang, C., & Zhang, K. (2012) · Journal of Affective Disorders · doi:10.1016/j.jad.2012.03.002 · Cited by 118 · cited 1×
“Connectivity studies of the middle frontal gyrus (part of the PFC) and hippocampus, report negative correlations between these regions to be associated with illness duration in untreated depressed patients [33].”
BackgroundBoldrini, M., Galfalvy, H., Dwork, A. J., Rosoklija, G. B., Trencevska-Ivanovska, I., Pavlovski, G., Hen, R., Arango, V., & Mann, J. J. (2019) · Biological Psychiatry · doi:10.1016/j.biopsych.2018.12.022 · Cited by 116
Self-citationUnraveling human adult hippocampal neurogenesis
Flor-García, M., Terreros-Roncal, J., Moreno-Jiménez, E. P., Ávila, J., Rábano, A., & Llorens-Martín, M. (2020) · Nature Protocols · doi:10.1038/s41596-019-0267-y · Cited by 113 · cited 1×
“The ability to visualize newborn neurons is heavily dependent on tissue fixation procedures, experimental protocols, and subject selection, as previously described [101, 103, 104].”
MethodDeep brain stimulation for psychiatric disorders: From focal brain targets to cognitive networks
Sullivan, C. R. P., Olsen, S., & Widge, A. S. (2021) · NeuroImage · doi:10.1016/j.neuroimage.2020.117515 · Cited by 112
Early life adversity is associated with brain changes in subjects at family risk for depression
Carballedo, A., Lisiecka, D., Fagan, A., Saleh, K., Ferguson, Y., Connolly, G., Meaney, J., & Frodl, T. (2012) · The World Journal of Biological Psychiatry · doi:10.3109/15622975.2012.661079 · Cited by 107 · cited 1×
“Smaller ACC, DLPFC, medial prefrontal cortex (MPFC) and hippocampus were shown in non-depressed individuals with a familial history of depression (first degree relative with MDD diagnosis) exposed to emotional neglect when compared to non-depressed individuals with no familial risk factors but who had been exposed to…”
ResultLaifenfeld, D., Karry, R., Grauer, E., Klein, E., & Ben-Shachar, D. (2005) · Neurobiology of Disease · doi:10.1016/j.nbd.2005.03.023 · Cited by 103
Schumacher, A., Villaruel, F. R., Ussling, A., Riaz, S., Lee, A. C. H., & Ito, R. (2018) · Current Biology · doi:10.1016/j.cub.2018.03.012 · Cited by 101
Kantrowitz, J. T., Dong, Z., Milak, M. S., Rashid, R., Kegeles, L. S., Javitt, D. C., Lieberman, J. A., & John Mann, J. (2021) · Translational Psychiatry · doi:10.1038/s41398-021-01541-1 · Cited by 100
Kadriu, B., Greenwald, M., Henter, I. D., Gilbert, J. R., Kraus, C., Park, L. T., & Zarate, C. A. (2021) · International Journal of Neuropsychopharmacology · doi:10.1093/ijnp/pyaa087 · Cited by 99 · cited 1×
“This has been hypothesized to be modulated by increases in BDNF/TrkB signaling [192].”
BackgroundEgeland, M., Guinaudie, C., Du Preez, A., Musaelyan, K., Zunszain, P. A., Fernandes, C., Pariante, C. M., & Thuret, S. (2017) · Translational Psychiatry · doi:10.1038/tp.2017.68 · Cited by 98 · cited 1×
“In rodents, administration of chemotherapy resulted in a loss of hippocampal proliferating cells that correlated with behavioral deficits [130, 131].”
BackgroundCognition as a treatment target in depression
Kaser, M., Zaman, R., & Sahakian, B. J. (2017) · Psychological Medicine · doi:10.1017/s0033291716003123 · Cited by 96
Adult neurogenesis: an evolutionary perspective
Kempermann, G. (2016) · Cold Spring Harbor Perspectives in Biology · doi:10.1101/cshperspect.a018986 · Cited by 95
Smith, R., Chen, K., Baxter, L., Fort, C., & Lane, R. D. (2013) · Journal of Affective Disorders · doi:10.1016/j.jad.2012.07.029 · Cited by 95 · cited 1×
“In addition to changes at the circuit level, MRI studies have found that SSRI treatment ameliorated hippocampal volumetric loss over time [183].”
BackgroundLe-Niculescu, H., Roseberry, K., Gill, S. S., Levey, D. F., Phalen, P. L., Mullen, J., Williams, A., Bhairo, S., Voegtline, T., Davis, H., et al. (2021) · Molecular Psychiatry · doi:10.1038/s41380-021-01061-w · Cited by 94
Hashimoto, K., Bruno, D., Nierenberg, J., Marmar, C. R., Zetterberg, H., Blennow, K., & Pomara, N. (2016) · Translational Psychiatry · doi:10.1038/tp.2016.8 · Cited by 90
State-Dependent Partial Occlusion of Cortical LTP-Like Plasticity in Major Depression
Kühn, M., Mainberger, F., Feige, B., Maier, J. G., Mall, V., Jung, N. H., Reis, J., Klöppel, S., Normann, C., & Nissen, C. (2015) · Neuropsychopharmacology · doi:10.1038/npp.2015.310 · Cited by 86 · cited 1×
“However, proxy measurements such as paired associative stimulation (PAS) using a transcranial magnetic stimulation protocol have shown that PAS-induced increases in motor-evoked potential amplitudes were attenuated during major depressive episodes compared with healthy controls and normalized during remission [150, 15…”
BackgroundPereira Dias, G., Hollywood, R., Bevilaqua, M. C. D. N., da Silveira da Luz, A. C. D., Hindges, R., Nardi, A. E., & Thuret, S. (2014) · Neuro-Oncology · doi:10.1093/neuonc/not321 · Cited by 85
Educating Religious Leaders Increases Male Circumcision Rates in Tanzania
Friedrich, M. J. (2017) · JAMA · doi:10.1001/jama.2017.3828 · Cited by 85
Instability of Symptoms in Recurrent Major Depression: A Prospective Study
Oquendo, M. A., Barrera, A., Ellis, S. P., Li, S., Burke, A. K., Grunebaum, M., Endicott, J., & Mann, J. J. (2004) · American Journal of Psychiatry · doi:10.1176/appi.ajp.161.2.255 · Cited by 84 · cited 1×
“Within the same patient, there is no consistency of severity of individual symptoms, symptom components or factors across successive episodes of major depression [32].”
BackgroundSelf-citationKaminska, M., Harris, J., Gijsbers, K., & Dubrovsky, B. (2000) · Brain Research Bulletin · doi:10.1016/s0361-9230(00)00251-3 · Cited by 84
Molecular and cellular mechanisms of memory allocation in neuronetworks
Won, J., & Silva, A. J. (2008) · Neurobiology of Learning and Memory · doi:10.1016/j.nlm.2007.08.017 · Cited by 82 · cited 1×
“The transcription of BDNF is dependent upon activation of the cyclic adenosine monophosphate (cAMP) response element binding protein (CREB) protein which plays a critical role in LTP and synaptic plasticity [141, 142].”
BackgroundNeuroprogression: the hidden mechanism of depression
Ruiz, N. A. L., del Ángel, D. S., Olguı́n, H. J., & Silva, M. L. (2018) · Neuropsychiatric Disease and Treatment · doi:10.2147/ndt.s177973 · Cited by 81 · cited 1×
“Neuroplasticity is defined as the brain’s ability to undergo neurobiological changes in response to extrinsic stimuli such as early life adversity [5–7] and chronic exposure to stress [8, 9] and/ or intrinsic stimuli most notably genetic or epigenetic effects [10, 11].”
BackgroundThe risk factors for depression in cancer patients undergoing chemotherapy: a systematic review
Wen, S., Xiao, H., & Yang, Y. (2019) · Supportive Care in Cancer · doi:10.1007/s00520-018-4466-9 · Cited by 77
Treccani, G., Ardalan, M., Chen, F., Musazzi, L., Popoli, M., Wegener, G., Nyengaard, J. R., & Müller, H. K. (2019) · Molecular Neurobiology · doi:10.1007/s12035-019-1613-3 · Cited by 73
Dentate gyrus volume and memory performance in major depressive disorder
Travis, S., Coupland, N. J., Silversone, P. H., Huang, Y., Fujiwara, E., Carter, R., Seres, P., & Malykhin, N. V. (2015) · Journal of Affective Disorders · doi:10.1016/j.jad.2014.09.048 · Cited by 71 · cited 1×
“Some report volume loss selectively in the hippocampal head and others observed volume loss in the hippocampal body [67].”
BackgroundTartt, A. N., Fulmore, C. A., Liu, Y., Rosoklija, G. B., Dwork, A. J., Arango, V., Hen, R., Mann, J. J., & Boldrini, M. (2018) · Cell Stem Cell · doi:10.1016/j.stem.2018.10.025 · Cited by 69 · cited 2×
“throughout adulthood using double immunofluorescence [20, 98–100], in situ hybridization [101] and (14)C decay-defined neuronal age [102].”
MethodSelf-citationHAMMAR, Å., SØRENSEN, L., Årdal, G., Oedegaard, K. J., Kroken, R. A., Roness, A., & Lund, A. (2009) · Scandinavian Journal of Psychology · doi:10.1111/j.1467-9450.2009.00765.x · Cited by 67
The Effect of Systemic Chemotherapy on Neurogenesis, Plasticity and Memory
Wigmore, P. (2012) · Current Topics in Behavioral Neurosciences · doi:10.1007/7854_2012_235 · Cited by 66
Luo, C., Xu, H., & Li, X.-M. (2004) · Brain Research · doi:10.1016/j.brainres.2004.06.089 · Cited by 66 · cited 1×
“Upregulation of proapoptotic factors such as Bax and downregulation of antiapoptotic factors like Bcl-2 have been shown in rodent models of depression [82, 83].”
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“These studies have generally observed increases in DG LTP [146] and reductions in LTP at Schaffer collaterals-CA1 synapses [147, 148] in response to acute and chronic stress.”
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Metadata
- Authors
- Tartt, A. N., Mariani, M. B., Hen, R., Mann, J. J., & Boldrini, M.
- Affiliations
- Stanford Medicine (US)
- Columbia University (US)
- New York State Psychiatric Institute (US)
- Columbia University Irving Medical Center (US)
- Corresponding author
- Boldrini, Maura
- Venue
- Molecular Psychiatry
- Published
- 2022-03-30
- Volume
- 27
- Issue
- 6
- Pages
- 2689-2699
- ISSN
- 1359-4184 (ISSN-L)
- 1476-5578
- PMC
- PMC9167750
- OpenAlex
- W4221105875
- Cited by
- 408
- References
- 227
- Citations by year
- 2026: 94 · 2025: 127 · 2024: 115 · 2023: 54 · 2022: 18
- FWCI
- 11.28
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Molecular Psychiatry (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institute on Aging (R56AG063372, R01AG076949)
- National Institute of Mental Health (R01MH083862, R21MH094888)
- National Institute of Allergy and Infectious Diseases (R21AI164769)
- Topics
- Health Sciences › Medicine › Pharmacology (medical) › Treatment of Major Depression
- Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
- Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
- Keywords
- major depressive disorder, hippocampal plasticity, adult hippocampal neurogenesis, antidepressant mechanism, synaptic plasticity, depression pathogenesis, depression treatment
- MeSH terms
- Adult, Antidepressive Agents, Depression, Depressive Disorder, Major, Major Depressive Disorder, Hippocampus, Humans, Neuronal Plasticity
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