Journal
JOURNAL OF CEREBRAL BLOOD FLOW AND METABOLISM
Volume 35, Issue 3, Pages 359-362Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/jcbfm.2014.224
Keywords
Alzheimer's; arterial spin labelling; cerebral vascular reactivity; MRI; tau
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Funding
- Medical Research Council [MR/J013110/1, MR/1500422/1]
- NC3Rs [NC/K500276/1]
- Eli Lilly
- Medical Research Council [MR/J013110/1, G0601056] Funding Source: researchfish
- National Centre for the Replacement, Refinement and Reduction of Animals in Research (NC3Rs) [NC/K500276/1] Funding Source: researchfish
- MRC [MR/J013110/1, G0601056] Funding Source: UKRI
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Vascular abnormalities are a key feature of Alzheimer's disease (AD). Imaging of cerebral vascular reactivity (CVR) is a powerful tool to investigate vascular health in clinical populations although the cause of reduced CVR in AD patients is not fully understood. We investigated the specific role of tau pathology in CVR derangement in AD using the rTg4510 mouse model. We observed an increase in CVR in cortical regions with tau pathology. These data suggest that tau pathology alone does not produce the clinically observed decreases in CVR and implicates amyloid pathology as the dominant etiology of impaired CVR in AD patients.
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