Blood Pressure Control and Protection of the Aging Brain

Area of Science:

• Neurology
• Gerontology
• Cardiovascular Medicine

Background:

• Hypertension and dementia are age-related disorders with increasing prevalence.
• Hypertension impacts the brain via altered blood flow, vessel pathology, and molecular changes.
• The interplay between hypertension and Alzheimer disease (AD) pathology is complex, affecting amyloid and tau.

Purpose of the Study:

• To review the mechanisms linking hypertension to cognitive decline and dementia.
• To assess the potential of hypertension treatment in preventing cognitive impairment.
• To highlight recent findings on the protective effects of hypertension management on the aging brain.

Main Methods:

• Literature review of studies on hypertension, brain function, and cognition.
• Analysis of mechanisms including hemodynamics, cerebrovascular pathology, and molecular pathways.
• Examination of clinical trial data and recent observational studies on hypertension treatment and cognitive outcomes.

Main Results:

• Hypertension affects brain structure and function through multiple pathways.
• Blood pressure interacts with Alzheimer disease biomarkers and genetic factors.
• Evidence suggests hypertension treatment may mitigate cognitive decline and dementia risk.

Conclusions:

• Hypertension poses a significant risk factor for cognitive impairment and dementia.
• Understanding the mechanisms of hypertension's effect on the brain is crucial.
• Further research and effective hypertension management are vital for preserving cognitive function in aging individuals.