Source:http://linkedlifedata.com/resource/pubmed/id/20182022
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
2010-6-10
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pubmed:abstractText |
Chronic hypertension is associated with an increased risk of both vascular dementia and Alzheimer's disease (AD). In this context, the role of anti-hypertensive therapy for the prevention and delay of cognitive decline and dementia is of central importance. Most longitudinal studies have shown a significant inverse association between anti-hypertensive therapies and dementia incidence and for some of these, particularly in AD. Seven randomized, double blind placebo-controlled trials have evaluated the benefit of antihypertensive treatments on cognition. Three of them found positive results in term of prevention of dementia (SYST-EUR) or cognitive decline (PROGRESS, HOPE). Others disclosed non-significant results (MRC, SHEP, SCOPE, HYVET-COG). This discrepancy emphasizes the difficulty to perform such trials: the follow-up has to be long enough to disclose a benefit, a large number of patients is needed for these studies, and because of ethical reasons some anti-hypertensive treatments are often prescribed in the placebo group. Results of the two more recent meta-analyses are inconsistent, possibly due to methodological issues. Antihypertensive treatments could be beneficial to cognitive function by lowering blood pressure and/or by specific neuroprotective effect. Three main antihypertensive subclasses have been associated with a beneficial effect on cognitive function beyond blood pressure reduction (calcium channel blockers, angiotensin converting enzyme inhibitor, angiotensin-AT1-receptor-blockers). Further long-term randomized trials, designed especially to assess a link between antihypertensive therapy and cognitive decline or dementia are therefore needed with cognition as the primary outcome. A low blood pressure threshold that could be deleterious for cognitive function should also be determined.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
1875-8908
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:volume |
20
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
903-14
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pubmed:meshHeading |
pubmed-meshheading:20182022-Antihypertensive Agents,
pubmed-meshheading:20182022-Cognition Disorders,
pubmed-meshheading:20182022-Dementia,
pubmed-meshheading:20182022-Humans,
pubmed-meshheading:20182022-Hypertension,
pubmed-meshheading:20182022-Longitudinal Studies,
pubmed-meshheading:20182022-Randomized Controlled Trials as Topic
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pubmed:year |
2010
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pubmed:articleTitle |
Antihypertensive treatments, cognitive decline, and dementia.
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pubmed:affiliation |
Department of Geriatrics, University Paris- Descartes, Broca Hospital, AP-HP, France. emmanuelle.duron@brc.aphp.fr
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pubmed:publicationType |
Journal Article,
Review
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