Cited by 175Multiple Sclerosis Research StudiesAdvanced Neuroimaging Techniques and ApplicationsNeuroinflammation and Neurodegeneration Mechanisms

Rostrocaudal Analysis of Corpus Callosum Demyelination and Axon Damage Across Disease Stages Refines Diffusion Tensor Imaging Correlations With Pathological Features

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Xie, Mingqiang, Tobin, Jennifer E., Budde, Matthew D., Chen, Chin-I, Trinkaus, Kathryn, Cross, Anne H., McDaniel, Dennis P., Song, Sheng-Kwei +1 more·2010·Journal of Neuropathology & Experimental Neurology

Abstract

Noninvasive assessment of the progression of axon damage is important for evaluating disease progression and developing neuroprotective interventions in multiple sclerosis patients. We examined the cellular responses correlated with diffusion tensor imaging-derived axial (lambda(parallel)) and radial (lambda(perpendicular)) diffusivity values throughout acute (4 weeks) and chronic (12 weeks) stages of demyelination and after 6 weeks of recovery using the cuprizone demyelination of the corpus callosum model in C57BL/6 and Thy1-YFP-16 mice. The rostrocaudal progression of pathological alterations in the corpus callosum enabled spatially and temporally defined correlations of pathological features with diffusion tensor imaging measurements. During acute demyelination, microglial/macrophage activation was most extensive and axons exhibited swellings, neurofilament dephosphorylation, and reduced diameters. Axial diffusivity values decreased in the acute phase but did not correlate with axonal atrophy during chronic demyelination. In contrast, radial diffusivity increased with the progression of demyelination but did not correlate with myelin loss or astrogliosis. Unlike other animal models with progressive neurodegeneration and axon loss, the acute axon damage did not progress to discontinuity or loss of axons even after a period of chronic demyelination. Correlations of reversible axon pathology, demyelination, microglia/macrophage activation, and astrogliosis with regional axial and radial diffusivity measurements will facilitate the clinical application of diffusion tensor imaging in multiple sclerosis patients.

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  • Axon diameter values were reduced after 4 weeks of cuprizone and axonal atrophy persisted at 12 weeks of cuprizone treatment.

    “Xie et al. found the axon diameter values were reduced after 4 weeks of cuprizone and the axonal atrophy persisted at 12 weeks of cuprizone treatment, however, the total density of axons were not significantly different in the densities of total neurofilament profiles throughout cuprizone treatment up to 12 weeks in the corpus callosum (Xie et al. 2010).”
  • Total density of axons was not significantly different in densities of total neurofilament profiles throughout cuprizone treatment up to 12 weeks in the corpus callosum.

    “Xie et al. found the axon diameter values were reduced after 4 weeks of cuprizone and the axonal atrophy persisted at 12 weeks of cuprizone treatment, however, the total density of axons were not significantly different in the densities of total neurofilament profiles throughout cuprizone treatment up to 12 weeks in the corpus callosum (Xie et al. 2010).”

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Cited by

Sorted by citations

Authors
Xie, M., Tobin, J. E., Budde, M. D., Chen, C.-I., Trinkaus, K., Cross, A. H., McDaniel, D. P., Song, S.-K., & Armstrong, R. C.
Affiliations
Uniformed Services University of the Health Sciences (US)
Corresponding author
Armstrong, Regina C.
Venue
Journal of Neuropathology & Experimental Neurology
Published
2010-07
Volume
69
Issue
7
Pages
704-716
ISSN
  • 0022-3069 (ISSN-L)
  • 1554-6578
OpenAlex
W2028081619
Cited by
175
References
5
Citations by year
2026: 5 · 2025: 6 · 2024: 9 · 2023: 6 · 2022: 8 · 2021: 10 · 2020: 10 · 2019: 13 · 2018: 8 · 2017: 14 · 2016: 15 · 2015: 16 · 2014: 14 · 2013: 11 · 2012: 11
FWCI
8.68
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuropathology & Experimental Neurology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Multiple Sclerosis Society (RG3515, RG 3670A3/2)
  • Multiple Sclerosis Society
  • National Institutes of Health (NS39293)
  • National Institute of Neurological Disorders and Stroke (R01NS047592, R01NS039293, NS39293, NS54194, NS47592, R01NS054194)
Topics
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Multiple Sclerosis Research Studies
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
multiple sclerosis, corpus callosum demyelination, axonal injury, cuprizone model, diffusion tensor imaging, axial diffusivity, radial diffusivity, astrocyte activation, axonal atrophy, disease stage
MeSH terms
Animals, Corpus Callosum, Cuprizone, Demyelinating Diseases, Disease Models, Animal, Glial Fibrillary Acidic Protein, Indoles, Luminescent Proteins, Macrophages, Male, Mice, Inbred C57BL, Mice, Transgenic, Myelin Proteins, Statistics as Topic, Time Factors, Neurofilament Proteins, Microglia, Disease Progression, Myelin-Associated Glycoprotein, Diffuse Axonal Injury, Diffusion Magnetic Resonance Imaging, CD11b Antigen, Microscopy, Electron, Transmission, Mice, Myelin-Oligodendrocyte Glycoprotein

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