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Published on: November 6, 2017
Vascular aspects of cognitive impairment and dementia
Maximilian Wiesmann1, Amanda J Kiliaan, Jurgen A H R Claassen
11] Department of Anatomy, Radboud University Nijmegen Medical Centre, Donders Institute for Brain, Cognition and Behavior, Nijmegen, The Netherlands [2] Department of Geriatric Medicine, Radboud Alzheimer Centre, Radboud University Nijmegen Medical Centre, Donders Institute for Brain, Cognition and Behavior, Nijmegen, The Netherlands.
Insights
Controlling hypertension and stroke, key factors in cognitive decline, may reduce dementia risk. Omega-3 fatty acids and blood pressure treatments show promise in preventing vascular and Alzheimer's dementia.
Area of Science:
- Neurology
- Cardiovascular Health
- Gerontology
Background:
- Hypertension and stroke are significant risk factors for cognitive impairment and dementia, including Alzheimer's disease (AD) and vascular dementia (VaD).
- Both AD and VaD are preceded by cognitive impairment stages, with stroke being a primary driver of vascular cognitive impairment (VCI) and VaD, and potentially predisposing to AD.
- Hypertension, a major stroke risk factor, links to VCI and VaD, and is also an independent risk factor for AD.
Purpose of the Study:
- To review research on the relationship between hypertension, stroke, and dementia.
- To examine the impact of long-chain omega-3 polyunsaturated fatty acids (LC-n3-FA) and antihypertensive treatments on dementia risk factors.
Main Methods:
- Literature review of studies investigating hypertension, stroke, cognitive impairment, and dementia.
- Analysis of research on the effects of LC-n3-FA and renin-angiotensin system modulators on dementia risk.
Main Results:
- Hypertension and stroke are modifiable risk factors that significantly contribute to the burden of cognitive impairment and dementia.
- Interventions targeting hypertension and stroke, such as LC-n3-FA intake and antihypertensive therapies, may mitigate dementia risk.
Conclusions:
- Reducing hypertension and stroke incidence is a viable strategy for lowering the prevalence of cognitive impairment and dementia.
- LC-n3-FA and specific antihypertensive treatments show potential in reducing the risk of VCI, VaD, and AD by addressing key risk factors.
Abstract:
Hypertension and stroke are highly prevalent risk factors for cognitive impairment and dementia. Alzheimer's disease (AD) and vascular dementia (VaD) are the most common forms of dementia, and both conditions are preceded by a stage of cognitive impairment. Stroke is a major risk factor for the development of vascular cognitive impairment (VCI) and VaD; however, stroke may also predispose to AD. Hypertension is a major risk factor for stroke, thus linking hypertension to VCI and VaD, but hypertension is also an important risk factor for AD. Reducing these two major, but modifiable, risk factors-hypertension and stroke-could be a successful strategy for reducing the public health burden of cognitive impairment and dementia. Intake of long-chain omega-3 polyunsaturated fatty acids (LC-n3-FA) and the manipulation of factors involved in the renin-angiotensin system (e.g. angiotensin II or angiotensin-converting enzyme) have been shown to reduce the risk of developing hypertension and stroke, thereby reducing dementia risk. This paper will review the research conducted on the relationship between hypertension, stroke, and dementia and also on the impact of LC-n3-FA or antihypertensive treatments on risk factors for VCI, VaD, and AD.
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