The DOI matches its Crossref record; 58 of the 58 references it cites were found in a registry or an index; 3 of the 8 sources its claims cite were checked for support.
Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage
Open accessAbstract
ATP-binding cassette (ABC) transporters facilitate unidirectional translocation of chemically diverse substances, ranging from peptides to lipids, across cell or organelle membranes. In peroxisomes, a subfamily of four ABC transporters (ABCD1 to ABCD4) has been related to fatty acid transport, because patients with mutations in ABCD1 (ALD gene) suffer from X-linked adrenoleukodystrophy (X-ALD), a disease characterized by an accumulation of very-long-chain fatty acids (VLCFAs). Inactivation in the mouse of the abcd1 gene leads to a late-onset neurodegenerative condition, comparable to the late-onset form of X-ALD [Pujol, A., Hindelang, C., Callizot, N., Bartsch, U., Schachner, M. and Mandel, J.L. (2002) Late onset neurological phenotype of the X-ALD gene inactivation in mice: a mouse model for adrenomyeloneuropathy. Hum. Mol. Genet., 11, 499-505.]. In the present work, we have generated and characterized a mouse deficient for abcd2, the closest paralog to abcd1. The main pathological feature in abcd2-/- mice is a late-onset cerebellar and sensory ataxia, with loss of cerebellar Purkinje cells and dorsal root ganglia cell degeneration, correlating with accumulation of VLCFAs in the latter cellular population. Axonal degeneration was present in dorsal and ventral columns in spinal cord. We have identified mitochondrial, Golgi and endoplasmic reticulum damage as the underlying pathological mechanism, thus providing evidence of a disturbed organelle cross-talk, which may be at the…
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In the paper
“inactivation of abcd2 does not lead to accumulation of VLCFAs in nervous tissues”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > INTRODUCTION
What the sources say
- Supportedcites [18] Pujol, A., Ferrer, I., Camps, C., Metzger, E., Hindelang, C., Callizot, N., Ruiz, M., Pampols, T., Giros, M. and Mandel, J.L. (2004) Functional overlap between ABCD1 (ALD) and ABCD2 (ALDR) transporters: a therapeutic target for X-adrenoleukodystrophy. Hum. Mol. Genet., 13, 2997–3006. source
The Discussion states that ALDR/ABCD2 inactivation does not cause VLCFA accumulation in whole homogenates of the mouse CNS or PNS. The results section likewise reports that absence of ALDR did not seem to affect VLCFA levels in the central or peripheral nervous system. (LLM, conf=0.93)
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In the paper
“C24:0 levels are higher in double mutants than in wild-type or abcd1-fibroblasts (P , 0.01).”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Biochemical function of ALDRP
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Axonal degeneration was present in dorsal and ventral columns in spinal cord.”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Abstract
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In the paper
“correlating with accumulation of VLCFAs in the latter cellular population”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Abstract
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesThe paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“all the pathological changes noticed by ultrastructural or immunohistochemical techniques in abcd22/2 mice at DRGs, spinal cords and cerebellar sites were presented in the same extent, intensity and age by abcd1 deficient mice.”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Biochemical function of ALDRP
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In the paper
“double mutant fibroblasts accumulate higher levels of C26:0 than abcd1-fibroblasts (P , 0.001).”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Biochemical function of ALDRP
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“At 12 months of age, abcd22/2 mice present lower amplitude of the H-wave than their wild-type littermates”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Defective spinal reflex in abcd22/2 mice
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In the paper
“We observed disturbed endoplasmic reticulum and Golgi apparatus, with dilatation and fragmentation of channels and cisterns”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Biochemical function of ALDRP
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In the paper
“abcd22/2 null mice were significantly more active than their wild-type littermates.”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Behavioral deficits in ALDRP-deficient mice
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“mice lacking ALDRP displayed progressive behavioral deficits, consistent with ongoing neural degeneration from 12 months onwards.”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Behavioral deficits in ALDRP-deficient mice
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passes
- It may state two separate claims as one. 15
- Probably not a substantial claim. 16
- The quote only partly states this claim. 2
Every source the paper cites for this claim was checked and supports it.
In the paper
“its stable overexpression by transgenesis in the ALD knoc-kout mouse prevents accumulation of VLCFAs as well as the onset of neurological phenotype”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > INTRODUCTION
What the sources say
- Supportedcites [18] Pujol, A., Ferrer, I., Camps, C., Metzger, E., Hindelang, C., Callizot, N., Ruiz, M., Pampols, T., Giros, M. and Mandel, J.L. (2004) Functional overlap between ABCD1 (ALD) and ABCD2 (ALDR) transporters: a therapeutic target for X-adrenoleukodystrophy. Hum. Mol. Genet., 13, 2997–3006. source
The Introduction describes stable ALDR/ABCD2 overexpression by transgenesis in ALD-knockout mice. The Results report normalized VLCFA levels, and the Discussion reports prevention of neurodegenerative features through 20–22 months of age. (LLM, conf=0.94)
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
- Supported
Every source the paper cites for this claim was checked and supports it.
In the paper
“Indeed, recent evidence indicates a severe impairment of fast axonal transport system in the PLP/DM20 deficient mouse (51), thus underscoring the importance of a healthy membrane for axonal function.”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > DISCUSSION
What the sources say
- Supportedcites [51] Edgar, J.M., McLaughlin, M., Yool, D., Zhang, S.C., Fowler, J.H., Montague, P., Barrie, J.A., McCulloch, M.C., Duncan, I.D., Garbern, J. et al. (2004) Oligodendroglial modulation of fast axonal transport in a mouse model of hereditary spastic paraplegia. J. Cell Biol., 166, 121–131. source
The Results section, “Absence of PLP impairs fast axonal transport systems,” reports a retrograde-transport deficit in PLP/DM20-deficient mice that worsened with age; tracer fluorescence was only 31% of control after three days. The Discussion, “PLP/DM20 is necessary for fast transport in myelinated axons,” also states that both anterograde and retrograde transport are perturbed and that transport can arrest or become severely retarded. Page numbers were not supplied. (LLM, conf=0.93)
Strength:hedged· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
- Supported
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Mice lacking the abcd2 gene were delivered in expected Mendelian ratios, were viable and fertile and did not show any obvious abnormalities in development, behavior or gross morphology of the nervous system up to 6 months”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Generation of abcd2 null mutant mice (abcd22/2)
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“lack of ALDRP is neither translated into an accumulation of VLCFAs nor into a decrease of C26:0 b-oxidation capacity”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Biochemical function of ALDRP
Load-bearingStrength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Double mutants showed a more severe involvement and earlier onset of pathological signs, evidenced from 12 months onwards.”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Biochemical function of ALDRP
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“the offspring obeyed Mendelian ratios.”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Mouse generation, breeding and genotyping
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“At the image center, enlargement of a non-myelinated fiber, with accumulation of organelles.Note myelinated degenerating axons, with decompactation of axolemma (asterisk).”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Immunohistochemistry
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“By the fourth trial, control animals ran the bar with not more than two slips.”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Horizontal bar cross test
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“In adult stages (weeks 5-6), aldr is expressed in interneurons of pons (G) and spinal cord (H).”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Immunohistochemistry
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“The abcd2 -/ -mice were generated by inactivation of the abcd2 gene by classic homologous recombination.”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Mouse generation, breeding and genotyping
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“In contrast, the ald gene exhibits a low and ubiquitous expression pattern, throughout embryonic development (B and D) and adult pons (I) and spinal cord (J).”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Immunohistochemistry
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Axonal degeneration: involution of the cellular organites with the formation of a fibrillar body (f) and myelin-like bodies (arrow); numerous vacuoles.”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Immunohistochemistry
Load-bearingStrength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
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In the paper
“Motor neuron cell body with hypertrophy of abnormal Golgi (g) cisternae associated to fragmented smooth ER (asterisk).Mitochondrial enlargement and densification of cristae (arrows).”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Immunohistochemistry
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“In neurons, lamellar bodies derived from altered Golgi (g) and rough endoplasmic reticulum (arrows).Note mitochondria with tubular cristae (asterisk) and ring-shaped alteration (white arrow).”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Immunohistochemistry
Load-bearingStrength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Focal loss of staining with anti-calbindin D28K in the aldr2/2 mice.”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Immunohistochemistry
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesThe quote only partly states this claim.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Double mutant animals show delayed time to cross the bar and increased number of slips.”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Immunohistochemistry
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Focal upregulations of GFAP expression in aldr2/2.”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Immunohistochemistry
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesThe quote only partly states this claim.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Proliferative neurons in cortex (C and E) and neuro-olfactive epitelium (F) are strongly positive for aldr at E14 and 5.”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Immunohistochemistry
Strength:boosted· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Aldr is strongly expressed in DRGs at E11 and 5.”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Immunohistochemistry
Strength:boosted· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Abnormal mitochondria with a lipid droplet and circular cristae in a ganglion cell (m).Fragmentation of Golgi cisternae (g).”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Immunohistochemistry
Load-bearingStrength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
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In the paper
“Remnants of the Golgi apparatus in the form of lamellae (arrows), in a zone with small smooth ER vacuoles.Two lamellated bodies within an axonal fiber (open arrows).”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Immunohistochemistry
Load-bearingStrength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“We obtained three recombinant clones, out of 302, resistant to neomycin, which were injected into blastocysts from C57BL/6 mice.”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Mouse generation, breeding and genotyping
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Myelin remnants in the Schwann cell, resulting in a fibrillar and granular body (f).Axolemma decompactation (arrow).”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Immunohistochemistry
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
In the paper
“Inactivation in the mouse of the abcd1 gene leads to a late-onset neurodegenerative condition, comparable to the late-onset form of X-ALD”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Abstract
What the sources say
- Not matchedcites Pujol, A., Hindelang, C., Callizot, N., Bartsch, U., Schachner, M. and Mandel, J.L. (2002)
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
- Not matched
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
“Taking all pathological findings together, we conclude that abcd22/2 mice develop a lateonset spinocerebellar ataxia, with impaired propioception most likely due to neuronal degenerative processes at the DRG level or to synaptic defects in spinal cord.”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > DISCUSSION
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Defective mitochondria may lead to a failure of ATP-dependent axoplasmic transport with consequent 'dying-back' axonal degeneration.”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > DISCUSSION
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“Mutations in ABCD1 results in X-linked adrenoleukodystrophy/adrenomyeloneuropathy (X-ALD/AMN) (12).”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > INTRODUCTION
What the sources say
- Not checked — no full text of the sourcecites [12] Mosser, J., Douar, A.M., Sarde, C.O., Kioschis, P., Feil, R., Moser, H., Poustka, A.M., Mandel, J.L. and Aubourg, P. (1993) Putative X-linked adrenoleukodystrophy gene shares unexpected homology with ABC transporters. Nature, 361, 726–730. source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“We propose that the composition, maintenance or recycling process of myelin and neuronal/axonal membrane might be disturbed in the ALD and ALDR models, leading to impaired axono-glia communication, which would be detrimental for both interconnected compartments.”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > DISCUSSION
Strength:hedged· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
In the paper
“VLCFAs levels have been found to be increased in X-ALD brain gangliosides (48), which might contribute to pathogenesis.”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > DISCUSSION
What the sources say
- Not checked — no full text of the sourcecites [48] Igarashi, M., Schaumburg, H.H., Powers, J., Kishmoto, Y., Kolodny, E. and Suzuki, K. (1976) Fatty acid abnormality in adrenoleukodystrophy. J. Neurochem., 26, 851–860. source
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“thus underscoring the importance of a healthy membrane for axonal function.”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > DISCUSSION
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“Crucial experiments (locomotor tests and EMG) have been confirmed with pure C57BL/6J background mice.”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Mouse generation, breeding and genotyping
Strength:boosted· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“Results described in this manuscript are derived from mice on a mixed C57BL/ 6J/129Sv background (87% C57BL/6J and 13%129Sv).”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Mouse generation, breeding and genotyping
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“Histology, morphometric, behavioral testing and electrophysiological experiments were performed in a blind way with respect to the animal's genotype.”
§ Inactivation of the peroxisomal ABCD2 transporter in the mouse leads to late-onset ataxia involving mitochondria, Golgi and endoplasmic reticulum damage > Mouse generation, breeding and genotyping
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
The paper relies on this without support.
No human disease has been attributed to defects in the genes coding for ALDRP (ABCD2), PMP70 (ABCD3) or PMP69 (ABCD4).
“To date, no human disease has been attributed to defects in the genes coding for ALDRP (ABCD2), PMP70 (ABCD3) or PMP69 (ABCD4).”
The paper relies on this without support.
The functions of ABCD2, ABCD3 and ABCD4 in higher eukaryotes are unknown.
“The functions of the three other transporters in higher eukaryotes are unknown”
The paper relies on this without support.
No human syndrome compatible with the abcd2-/- phenotype has been linked to the ABCD2 locus at 12q1.1-1.2.
“To date, no human syndrome compatible with this phenotype has been linked to the ABCD2 locus at 12q1.1 -1.2.”
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
The source backs part of the claim, not all of it — or backs it for a different population, condition or comparison.
In the citing paper
“Electron microscopy in Abcd2 KO mice showed the first signs of spinal cord axonal pathology at 12 months, yet no histological abnormalities.”
From Revisiting the Pathogenesis of X-Linked Adrenoleukodystrophy (2025) · cites this paper as [196]
Experimental — accuracy not yet measuredThe cited source says what the claim attributes to it.
In the citing paper
“In Abcd2-deficient mice, saturated VLCFA do not generally accumulate; increased C26∶0 levels have been detected exclusively in the dorsal root ganglia of young Abcd2-deficient mice [33].”
From Abcd2 Is a Strong Modifier of the Metabolic Impairments in Peritoneal Macrophages of Abcd1-Deficient Mice (2014) · cites this paper as [33]
The cited source says what the claim attributes to it.
In the citing paper
“One notable exception are the dorsal root ganglia [33], which may explain the earlier onset of a sensory motor phenotype in Abcd1/Abcd2 double-deficient and Abcd2 single-deficient mice compared with Abcd1-deficient mice [31].”
From Abcd2 Is a Strong Modifier of the Metabolic Impairments in Peritoneal Macrophages of Abcd1-Deficient Mice (2014) · cites this paper as [33]
The cited source says what the claim attributes to it.
In the citing paper
“At 12 months of age, Abcd2 KO mice already displayed a marked impairment in their motor performance, which aggravated up to 20 months.”
From Revisiting the Pathogenesis of X-Linked Adrenoleukodystrophy (2025) · cites this paper as [196]
The cited source says what the claim attributes to it.
In the citing paper
“The brain of Abcd2 KO mice showed no significant difference compared to wild type littermates.”
From Revisiting the Pathogenesis of X-Linked Adrenoleukodystrophy (2025) · cites this paper as [196]
The cited source says what the claim attributes to it.
In the citing paper
“Histological abnormalities in spinal cord dorsal and ventral columns became evident at 20 months, while atrophy or death of Purkinje cells was detected in the cerebellum.”
From Revisiting the Pathogenesis of X-Linked Adrenoleukodystrophy (2025) · cites this paper as [196]
The cited source says what the claim attributes to it.
In the citing paper
“Abcd1: Abcd2 double KO mice had an earlier onset of symptoms with more severe motor deficits (at 20 months of age, 6 out of 11 mice were not able to perform motor tests), axonal degeneration, and myelin alterations, but no cerebral pathology.”
From Revisiting the Pathogenesis of X-Linked Adrenoleukodystrophy (2025) · cites this paper as [196]
The cited source says what the claim attributes to it.
In the citing paper
“Moreover, Acbd2–/– mice develop signs of ataxia corresponding to a significant decline in cerebellar Purkinje neurons at the age of 20 months, suggesting that the more severe locomotor phenotype is associated with the degeneration of central motor centers (Ferrer et al., 2005).”
From The neurological pathology of peroxisomal ACBD5 deficiency – lessons from patients and mouse models (2025) · cites this paper as Ferrer et al., 2005
The cited source says what the claim attributes to it.
In the citing paper
“Moreover, Acbd2–/– mice develop signs of ataxia corresponding to a significant decline in cerebellar Purkinje neurons at the age of 20 months, suggesting that the more severe locomotor phenotype is associated with the degeneration of central motor centers (Ferrer et al., 2005).”
From The neurological pathology of peroxisomal ACBD5 deficiency – lessons from patients and mouse models (2025) · cites this paper as Ferrer et al., 2005
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
Each contradiction between two passages listed here was confirmed by an independent check.
Fibroblast β-oxidation cites the wrong Figure 3 panel
MinorThe results cite Figure 3G and H for the fibroblast β-oxidation finding, whereas the caption places that measurement in panel F; panels G and H show fatty-acid levels.
“In this cell type, lack of ALDRP is neither translated into an accumulation of VLCFAs nor into a decrease of C26:0 b-oxidation capacity (Fig. 3G and H).”
“(F) Capacity of adult fibroblasts to b-oxidize C26:0, expressed as picomoles per hour per milligram of protein.”
Purkinje neurofilament result cites GFAP panels
MinorThe results point to Figure 7E and F for reduced neurofilament staining, but the caption assigns that finding to panel H and identifies panel F as GFAP staining.
“A clear reduction of non-phosphorylated neurofilaments in Purkinje cells (SMI 32 antibody) (23) indicated reduced dendritic arborization (Fig. 7E and F).”
“(F) Focal upregulations of GFAP expression in aldr2/2.(H) Strong reduction of non-phosphorylated neurofilaments in Purkinje cells was seen by staining with anti-SMI32.”
DRG measurements cite nonexistent Figure 3 panels
MinorThe text assigns the DRG C26:0 result to Figure 3I and J, but the figure caption identifies the fatty-acid measurements as panels G and H and lists no panels I or J.
“We could indeed detect an accumulation of C26:0 in DRGs from abcd22/2 mice (Fig. 3I and J, P , 0.002).”
“(G and H) Quantification of saturated VLCFA levels by ESI-MS in adult fibroblasts and DRG samples, expressed as micromoles per milligram of protein.”
Citations
Cites
Peroxisomes (microbodies and related particles).
De Duve, C., & Baudhuin, P. (1966) · Physiological Reviews · doi:10.1152/physrev.1966.46.2.323 · Cited by 1,666
Putative X-linked adrenoleukodystrophy gene shares unexpected homology with ABC transporters
Mosser, J., Douar, A.-M., Sarde, C.-O., Kioschis, P., Feil, R., Moser, H., Poustka, A.-M., Mandel, J.-L., & Aubourg, P. (1993) · Nature · doi:10.1038/361726a0 · Cited by 1,202
Self-citationSternberger, L. A., & Sternberger, N. H. (1983) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.80.19.6126 · Cited by 1,158
Hyde, S. C., Emsley, P., Hartshorn, M. J., Mimmack, M. M., Gileadi, U., Pearce, S. R., Gallagher, M. P., Gill, D. R., Hubbard, R. E., & Higgins, C. F. (1990) · Nature · doi:10.1038/346362a0 · Cited by 1,145
Disruption of Cnp1 uncouples oligodendroglial functions in axonal support and myelination
Lappe-Siefke, C., Goebbels, S., Gravel, M., Nicksch, E., Lee, J., Braun, P. E., Griffiths, I. R., & Nave, K.-A. (2003) · Nature Genetics · doi:10.1038/ng1095 · Cited by 1,036
Bjartmar, C., Wujek, J. R., & Trapp, B. D. (2003) · Journal of the Neurological Sciences · doi:10.1016/s0022-510x(02)00069-2 · Cited by 573
Qualitative alteration in substrate specificity of mitochondrial monoamine oxidase in brain
Moskvitina, T. A., Kamyshanskaya, N. S., Kaverina, L. P., & Gorkin, V. Z. (1976) · Journal of Neurochemistry · doi:10.1111/j.1471-4159.1976.tb04462.x · Cited by 440
Peroxisome biogenesis disorders
Gould, S. J., & Valle, D. L. (2000) · Trends in Genetics · doi:10.1016/s0168-9525(00)02056-4 · Cited by 354
Fan, C.-Y., Pan, J., Usuda, N., Yeldandi, A. V., Rao, M. S., & Reddy, J. K. (1998) · Journal of Biological Chemistry · doi:10.1074/jbc.273.25.15639 · Cited by 343
Edgar, J. M., McLaughlin, M., Yool, D., Zhang, S.-C., Fowler, J. H., Montague, P., Barrie, J. A., McCulloch, M. C., Duncan, I. D., Garbern, J., et al. (2004) · The Journal of Cell Biology · doi:10.1083/jcb.200312012 · Cited by 328
Flagged first, then by citations
Research works printed but not linked: 1
- Silva-Zolezzi, I., Hebron, K., Mihalik, S., Thomas, G., Valle, D. and Jimenez-Sanchez, G. (2003) Abcd3−/− mice have a non-shivering thermogenesis defect related to a disturbance in fasting fuel homeostasis. 53rd Annual Meeting of the American Society of Human Genetics. The American Society of Human Genetics, Los Angeles, California, Vol. Supplement to Vol. 73, p. 199.
Cited by
Sorted by citations
Items 101–105 of 105
Rodríguez‐Pascau, L., Vilalta, A., Cerrada, M., Traver, E., Forss‐Petter, S., Weinhofer, I., Bauer, J., Kemp, S., Pina, G., Pascual, S., et al. (2022) · Yearbook of pediatric endocrinology · doi:10.1530/ey.19.8.10
Self-citationPan-Cancer Analysis prove ABCD2 prognostic value and potential of immunotherapyPreprint
Zhong, F., yang, M., Jiang, C., et al. (2023) · Research Square · doi:10.21203/rs.3.rs-3480021/v1
Hajj, H. I. E. (2012) · theses.fr (ABES) · doi:10.70675/f64502b8zb0d3z4fe5zbc45z543a928be0cb
Metadata
- Authors
- Ferrer, I., Kapfhammer, J. P., Hindelang, C., Kemp, S., Troffer-Charlier, N., Broccoli, V., Callyzot, N., Mooyer, P., Selhorst, J., Vreken, P., Wanders, R. J. A., Mandel, J. L., & Pujol, A.
- Affiliations
- University of Basel (CH)
- Centre National de la Recherche Scientifique (FR)
- Amsterdam UMC Location University of Amsterdam (NL)
- Sig Holding (Switzerland) (CH)
- Institució Catalana de Recerca i Estudis Avançats (ES)
- Venue
- Human Molecular Genetics
- Publisher
- Oxford University Press (OUP)
- Published
- 2005-10-13
- Volume
- 14
- Issue
- 23
- Pages
- 3565-3577
- ISSN
- 0964-6906 (ISSN-L)
- 1460-2083
- OpenAlex
- W2099862428
- Cited by
- 106
- References
- 56
- Citations by year
- 2025: 3 · 2024: 1 · 2023: 5 · 2022: 5 · 2021: 4 · 2020: 2 · 2019: 2 · 2018: 7 · 2017: 4 · 2016: 2 · 2015: 6 · 2014: 7 · 2013: 9 · 2012: 5
- FWCI
- 2.56
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Human Molecular Genetics (publishedVersion)
- PubMed (publishedVersion)
- reroDoc Digital Library (submittedVersion)
- Data Archiving and Networked Services (DANS) (submittedVersion)
- HAL (Le Centre pour la Communication Scientifique Directe) (submittedVersion)
- Pure Amsterdam UMC (submittedVersion)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Peroxisome Proliferator-Activated Receptors
- Health Sciences › Medicine › Physiology (medical) › Adipose Tissue and Metabolism
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Metabolism and Genetic Disorders
- Keywords
- ABCD2, peroxisomal ABC transporters, late-onset ataxia, very long chain fatty acids, Purkinje cells, axonal degeneration, mitochondrial damage, endoplasmic reticulum damage
- MeSH terms
- ATP Binding Cassette Transporter, Subfamily D, Animals, Behavior, Animal, Cerebellum, Disease Models, Animal, Endoplasmic Reticulum, Golgi Apparatus, Mitochondria, Spinal Cord
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
A language model drew the claims from the paper on 2026-10-11, under version 3 of the claim definition (model deepseek-v4.1-flash, prompt extract-v3).
A second model labelled each claim on 2026-10-11 (model jev-1.13-20260917, definition revision gold-guideline-v0.2).
Cited sources are checked with a language model’s help (gpt-6-sol).
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
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