期刊
JOURNAL OF CEREBRAL BLOOD FLOW AND METABOLISM
卷 32, 期 8, 页码 1468-1471出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/jcbfm.2012.64
关键词
Alzheimer's disease; blood-brain barrier; cerebral amyloid angiopathy; P-glycoprotein; positron emission tomography; (R)-[C-11]verapamil
资金
- European Community [201380]
Decreased blood-brain barrier P-glycoprotein (Pgp) function has been shown in Alzheimer's disease (AD) patients using positron emission tomography (PET) with the radiotracer (R)-[C-11] verapamil. Decreased Pgp function has also been hypothesized to promote cerebral amyloid angiopathy (CAA) development. Here, we used PET and (R)-[C-11] verapamil to assess Pgp function in eighteen AD patients, of which six had microbleeds (MBs), presumably reflecting underlying CAA. No differences were found in binding potential and nonspecific volume of distribution of (R)-[C-11] verapamil between patient groups. These results provide no evidence for additional Pgp dysfunction in AD patients with MBs. Journal of Cerebral Blood Flow & Metabolism (2012) 32, 1468-1471; doi: 10.1038/jcbfm.2012.64; published online 16 May 2012
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