Cited by 133Spinal Cord Injury ResearchNerve injury and regenerationMultiple Sclerosis Research Studies

No evidence for chronic demyelination in spared axons after spinal cord injury in a mouse

Open access
Lasiene, Jurate, Shupe, Larry, Perlmutter, Steve, Horner, Philip·2008·The Journal of Neuroscience

Abstract

The pattern of remyelination after traumatic spinal cord injury remains elusive, with animal and human studies reporting partial to complete demyelination followed by incomplete remyelination. In the present study, we found that spared rubrospinal tract (RST) axons of passage traced with actively transported dextrans and examined caudally to the lesion 12 weeks after mouse spinal cord contusion injury were fully remyelinated. Spared axons exhibited a marginally reduced myelin thickness and significantly shorter internodes. CASPR (contactin-associated protein) and K(v)1.2 channels were used to identify internodes and paranodal protein distribution properties were used as an index of myelin integrity. This is the first time the CNS myelin internode length was measured in a mouse. To better understand the significance of shortened internodes and thinner myelin in spared axons, we modeled conduction properties using McIntyre's et al. model of myelinated axons. Mathematical modeling predicted a 21% decrease in the conduction velocity of remyelinated RST axons attributable to shortened internodes. To determine whether demyelination could be present on axons exhibiting a pathological transport system, we used the retroviral reporter system. Virally delivered green fluorescent protein unveiled a small population of dystrophic RST axons that persist chronically with evident demyelination or abnormal remyelination. Collectively, these data show that lasting demyelination in spared axons is rare and that remyelination of axons of passage occurs in the chronically injured mouse spinal cord.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1523/jneurosci.4756-07.2008

Cites

62 of 62 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

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?

  • Myelin formed during repair of experimental demyelination or during demyelinating injury or disease is thinner on average (larger g-ratio) than myelin formed during normal development, although this is less pronounced for smaller-diameter axons such as those in the optic nerve.

    “It is well documented that myelin formed during repair of experimental demyelination or during demyelinating injury or disease is thinner on average (larger g-ratio) than myelin that is formed during normal development (e.g., Lasiene et al., 2008), although this is less pronounced for smaller-diameter axons such as those in the optic nerve (Stidworthy et al., 2003).”

    From Oligodendrocyte Dynamics in the Healthy Adult CNS: Evidence for Myelin Remodeling (2013) · cites this paper as Lasiene et al., 2008

    Split into 2 atoms — 1 confirmed, 1 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

1 of the 63 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Lasiene, J., Shupe, L., Perlmutter, S., & Horner, P.
Affiliations
University of Washington (US)
Venue
The Journal of Neuroscience
Published
2008-04-09
Volume
28
Issue
15
Pages
3887-3896
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2000630772
Cited by
133
References
63
Citations by year
2026: 2 · 2025: 4 · 2024: 6 · 2023: 10 · 2022: 4 · 2021: 4 · 2020: 6 · 2019: 9 · 2018: 7 · 2017: 13 · 2016: 5 · 2015: 7 · 2014: 10 · 2013: 12 · 2012: 10
FWCI
5.67
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • University of Washington
  • Università degli Studi di Sassari
  • National Institutes of Health (NSO46724)
  • U.S. Public Health Service (NSO46724)
  • University of California, San Diego
  • National Institute of Neurological Disorders and Stroke (NS040867, R01NS046724, R01NS040867)
Topics
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Spinal Cord Injury Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nerve injury and regeneration
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Multiple Sclerosis Research Studies
Keywords
spinal cord injury, remyelination, demyelination, rubrospinal tract, myelin thickness, Caspr, axonal transport, retrograde transport, conduction velocity, dystrophic axons, mouse model
MeSH terms
Animals, Axons, Female, Genetic Vectors, Mice, Inbred C57BL, Models, Neurological, Myelin Sheath, Nerve Regeneration, Neural Conduction, Reaction Time, Spinal Cord, Spinal Cord Injuries, Time Factors, Transfection, Cell Adhesion Molecules, Neuronal, Lentivirus, Microscopy, Immunoelectron, Green Fluorescent Proteins, Mice, Kv1.2 Potassium Channel

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.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review