Cited by 1,658Advanced Neuroimaging Techniques and ApplicationsMultiple Sclerosis Research StudiesAdvanced MRI Techniques and Applications

Demyelination increases radial diffusivity in corpus callosum of mouse brain

Song, Sheng-Kwei, Yoshino, Jun, Le, Tuan Q., Lin, Shiow-Jiuan, Sun, Shu-Wei, Cross, Anne H., Armstrong, Regina C.·2005·NeuroImage

Abstract

Myelin damage, as seen in multiple sclerosis (MS) and other demyelinating diseases, impairs axonal conduction and can also be associated with axonal degeneration. Accurate assessments of these conditions may be highly beneficial in evaluating and selecting therapeutic strategies for patient management. Recently, an analytical approach examining diffusion tensor imaging (DTI) derived parameters has been proposed to assess the extent of axonal damage, demyelination, or both. The current study uses the well-characterized cuprizone model of experimental demyelination and remyelination of corpus callosum in mouse brain to evaluate the ability of DTI parameters to detect the progression of myelin degeneration and regeneration. Our results demonstrate that the extent of increased radial diffusivity reflects the severity of demyelination in corpus callosum of mouse brain affected by cuprizone treatment. Subsequently, radial diffusivity decreases with the progression of remyelination. Furthermore, radial diffusivity changes were specific to the time course of changes in myelin integrity as distinct from axonal injury, which was detected by betaAPP immunostaining and shown to be most extensive prior to demyelination. Radial diffusivity offers a specific assessment of demyelination and remyelination, as distinct from acute axonal damage.

Integrity signals

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Crossref · 10.1016/j.neuroimage.2005.01.028

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Authors
Song, S.-K., Yoshino, J., Le, T. Q., Lin, S.-J., Sun, S.-W., Cross, A. H., & Armstrong, R. C.
Affiliations
  • Washington University in St. Louis (US)
  • Uniformed Services University of the Health Sciences (US)
Corresponding author
Song, Sheng-Kwei
Venue
NeuroImage
Publisher
Elsevier BV
Published
2005-05
Volume
26
Issue
1
Pages
132-140
ISSN
1053-8119 (ISSN-L)
OpenAlex
W2025047388
Cited by
1,658
References
35
Citations by year
2026: 36 · 2025: 50 · 2024: 46 · 2023: 54 · 2022: 75 · 2021: 87 · 2020: 98 · 2019: 114 · 2018: 90 · 2017: 100 · 2016: 107 · 2015: 98 · 2014: 122 · 2013: 109 · 2012: 105
FWCI
27.60
Type
journal article
Language
en
Open access
closed
Locations
  • NeuroImage (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • University of Washington (R24-CA83060)
  • National Multiple Sclerosis Society (CA 1012-A-13, RG 3376-A-2/1)
  • Alzheimer’s Disease Research Center, University of Washington
  • National Institutes of Health (NS39293, AG05681)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Multiple Sclerosis Research Studies
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced MRI Techniques and Applications
Keywords
demyelination, radial diffusivity, corpus callosum, cuprizone, remyelination, diffusion tensor imaging, axonal injury, myelin integrity, multiple sclerosis, mouse model
MeSH terms
Algorithms, Amidines, Animals, Axons, Brain, Brain Chemistry, Chelating Agents, Corpus Callosum, Cuprizone, Demyelinating Diseases, Histocytochemistry, Image Interpretation, Computer-Assisted, Male, Mice, Inbred C57BL, Myelin Sheath, Periodic Acid-Schiff Reaction, Amyloid beta-Peptides, Tissue Fixation, Diffusion Magnetic Resonance Imaging, Mice

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