Journal
NEUROBIOLOGY OF AGING
Volume 31, Issue 9, Pages 1629-1636Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.neurobiolaging.2008.09.001
Keywords
CADASIL; Cerebral microhemorrhage; Lacunar infarction; Atrophy; White matter damage; Cognitive impairment; Disability
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Funding
- DRC/APHP [AOR 02-001]
- Deutsche Forschungsgemeinschaft [SFB596/TPA4]
- EISAI Medical Res Inc (Germany)
- Peel Medical Research Trust
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CADASIL is an arteriopathy caused by mutations of the Notch3 gene White matter hyperintensities (WMH). lacunar lesions (LL), cerebral microhemorrhages (CM). brain atrophy and tissue microstructural changes are detected on MRI Using an integrated multi-modal approach, we examined the relative impact of lesion burden and location of these MRI markers on cognitive impairment and disability Multi-modal imaging was performed on 147 patients from a two-center cohort study Volume of LL, WMH and number of CM was determined Whole brain mean apparent diffusion coefficient (mean-ADC) and brain parenchymal fraction (BPF) were measured In multivariate models accounting for lesion burden and location, volume of LL, mean-ADC, and BPF each had an independent influence on global cognitive function and BPF explained the largest portion of the variation in cognitive and disability scores (35-38%) Brain atrophy has the strongest independent Influence on clinical impairment in CA DASIL when all MRI markers in the disease are considered together The results suggest that the clinical impact of cerebral tissue loss plays a principal role in this genetic model of subcortical ischemic vascular dementia (C) 2008 Elsevier Inc All rights reserved
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