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Grey matter atrophy measured in-vivo with 9.4T MRI in the cuprizone mouse model of demyelination
A. Max Hamilton1,2,3,4, Qandeel Shafqat1,2,3,4, Nils D. Forkert1,2,3, Ying Wu1,2,3,4, and Jeff F. Dunn1,2,3,4
1Department of Radiology, University of Calgary, Calgary, AB, Canada, 2Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada, 3Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada, 4Experimental Imaging Center Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
Using 9.4T MRI, a cryoprobe, and atlas-based volumetric analysis, we identified subcortical and corpus callosum atrophy in the cuprizone mouse model of MS, following chronic demyelination at 12 weeks.
Figure 1. Corpus callosum demyelination in cuprizone mice. Demyelination follows a rostro-caudal pattern. A) Lateral callosal demyelination rostrally. B) Medial callosal demyelination caudally.
Figure 4. Cuprizone mice experience severe demyelination after 12 weeks on cuprizone diet compared to controls (reduced green fluorescence). Near complete demyelination seen in medial corpus callosum (A, E) and cortex (B, F). Partial demyelination was seen in the striatum (C, G) and the thalamus (D, H). Statistics were performed using Student's t-test (I). p < 0.05*; <0.01**, <0.001***.