Quantitative MRI and ultrastructural examination of the cuprizone mouse model of demyelination
Abstract
The cuprizone mouse model of demyelination was used to investigate the influence that white matter changes have on different magnetic resonance imaging results. In vivo T2‐weighted and magnetization transfer images (MTIs) were acquired weekly in control (n = 5) and cuprizone‐fed (n = 5) mice, with significant increases in signal intensity in T2‐weighted images (p < 0.001) and lower magnetization transfer ratio (p < 0.001) in the corpus callosum of the cuprizone‐fed mice starting at 3 weeks and peaking at 4 and 5 weeks, respectively. Diffusion tensor imaging (DTI), quantitative MTI (qMTI), and T1/T2 measurements were used to analyze freshly excised tissue after 6 weeks of cuprizone administration. In multicomponent T2 analysis with 10 ms echo spacing, there was no visible myelin water component associated with the short T2 value. Quantitative MTI metrics showed significant differences in the corpus callosum and external capsule of the cuprizone‐fed mice, similar to previous studies of multiple sclerosis in humans and animal models of demyelination. Fractional anisotropy was significantly lower and mean, axial, and radial diffusivity were significantly higher in the cuprizone‐fed mice. Cellular distributions measured in electron micrographs of the corpus callosum correlated strongly to several different quantitative MRI metrics. The largest Spearman correlation coefficient varied depending on cellular type: T1 versus the myelinated axon fraction (ρ = −0.90), the bound pool fraction (ƒ) versus the myelin sheath fraction (ρ = 0.93), and axial diffusivity versus the non‐myelinated cell fraction (ρ = 0.92). Using Pearson's correlation coefficient, ƒ was strongly correlated to the myelin sheath fraction (r = 0.98) with a linear equation predicting myelin content (5.37ƒ − 0.25). Of the calculated MRI metrics, ƒ was the strongest indicator of myelin content, while longitudinal relaxation rates and diffusivity measurements were the strongest indicators of changes in tissue structure. Copyright © 2013 John Wiley & Sons, Ltd.
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Various MRI techniques can detect white matter abnormality noninvasively.
“The cuprizone mouse model is a well-established demyelination model, and MRI studies demonstrated that various MRI techniques can detect white matter abnormality noninvasively (Thiessen et al. 2013; Tagge et al. 2016).”
From Neurite orientation dispersion and density imaging of mouse brain microstructure (2019) · cites this paper as Thiessen et al. 2013
The cuprizone mouse model is a well-established demyelination model.
“The cuprizone mouse model is a well-established demyelination model, and MRI studies demonstrated that various MRI techniques can detect white matter abnormality noninvasively (Thiessen et al. 2013; Tagge et al. 2016).”
From Neurite orientation dispersion and density imaging of mouse brain microstructure (2019) · cites this paper as Thiessen et al. 2013
In studies measuring between-subject variance, a notable source of variability was that data belonged to multiple groups (e.g., different ages, different pathology severity).
“In studies measuring between-subject variance a notable source of variability was that the data belonged to multiple groups (e.g. different ages, different pathology severity) (Thiessen et al., 2013).”
From Can MRI measure myelin? Systematic review, qualitative assessment, and meta-analysis of studies validating microstructural imaging with myelin histology (2021) · cites this paper as Thiessen et al., 2013
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Self-citation
- Authors
- Thiessen, J. D., Zhang, Y., Zhang, H., Wang, L., Buist, R., Del Bigio, M. R., Kong, J., Li, X., & Martin, M.
- Affiliations
- University of Manitoba (CA)
- University of Saskatchewan (CA)
- Department of Pathology University of Manitoba Winnipeg MB Canada
- Corresponding author
- Thiessen, Jonathan D.
- ORCID
- Venue
- NMR in Biomedicine
- Publisher
- Wiley
- Published
- 2013-08-13
- Volume
- 26
- Issue
- 11
- Pages
- 1562-1581
- ISSN
- 0952-3480 (ISSN-L)
- 1099-1492
- OpenAlex
- W1784432185
- Cited by
- 148
- References
- 7
- Citations by year
- 2026: 5 · 2025: 6 · 2024: 6 · 2023: 7 · 2022: 10 · 2021: 11 · 2020: 11 · 2019: 19 · 2018: 20 · 2017: 13 · 2016: 22 · 2015: 9 · 2014: 8 · 2013: 1
- FWCI
- 10.33
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- NMR in Biomedicine (publishedVersion)
- PubMed (publishedVersion)
- 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
- cuprizone, demyelination, multiple sclerosis, corpus callosum, myelin content, magnetization transfer imaging, T2-weighted imaging, diffusion tensor imaging, fractional anisotropy, axial and radial diffusivity, myelin water, electron microscopy, white matter, myelinated axons, myelin sheath
- MeSH terms
- Animals, Axons, Corpus Callosum, Cuprizone, Demyelinating Diseases, Diet, Disease Models, Animal, Female, Magnetic Resonance Imaging, Mice, Inbred C57BL, Myelin Sheath, Perfusion, Signal Processing, Computer-Assisted, Statistics, Nonparametric, Mice
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