期刊
AMERICAN JOURNAL OF HYPERTENSION
卷 29, 期 2, 页码 149-157出版社
OXFORD UNIV PRESS
DOI: 10.1093/ajh/hpv180
关键词
Alzheimer's disease; blood pressure; cognition; dementia; hypertension; review
资金
- RFP [NHLBI-HC-09-04]
- NINDS [R01 NS075107-01]
- NIA [U01 AG022376]
- several Alzheimer's Disease Cooperative Studies (NIA)
- Navidea [NAV4-02]
- NIH [HHSN268201100027C]
- Department of Internal Medicine, Section on Gerontology and Geriatric Medicine
This review summarizes evidence from studies of blood pressure and dementia-related biomarkers into our understanding of cognitive health and highlights the challenges facing studies, particularly randomized trials, of hypertension and cognition. Several lines of research suggest that elevated blood pressure, especially at midlife, is associated with cognitive decline and dementia and that treatment of hypertension could prevent these conditions. Further, studies of hypertension and brain structure show that blood pressure is associated with several forms of small vessel disease that can result in vascular dementia or interact with Alzheimer's pathology to lower the pathologic threshold at which Alzheimer's signs and symptoms manifest. In addition, recent studies of hypertension and Alzheimer's biomarkers show that elevated blood pressure and pulse pressure are associated with the extent of brain beta amyloid (A beta) deposition and altered cerebral spinal fluid profiles of A beta and tau indicative of Alzheimer's pathology. However, in spite of strong evidence of biological mechanisms, results from randomized trials of antihypertensive therapy for the prevention of cardiovascular or cerebrovascular disease that include cognitive endpoints do not strongly support the observational evidence that treatment of hypertension should be better for cognition. We propose that future clinical trials should consider including dementia biomarkers and assess genetic and cardiometabolic risk factors that have been associated with progression of the underlying disease pathology to help bridge these gaps.
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