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Updated: Nov 2, 2025

Evaluation of the Cognitive Performance of Hypertensive Patients with Silent Cerebrovascular Lesions
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Evaluation of the Cognitive Performance of Hypertensive Patients with Silent Cerebrovascular Lesions

Published on: April 23, 2021

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Hypertension-induced cognitive impairment: from pathophysiology to public health

Zoltan Ungvari1,2,3, Peter Toth1,2,4, Stefano Tarantini1,2,3

  • 1Vascular Cognitive Impairment and Neurodegeneration Program, Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.

Nature Reviews. Nephrology
|June 15, 2021
PubMed

Insights

High blood pressure in older adults significantly raises the risk of cognitive decline and Alzheimer's disease by damaging brain blood vessels. Managing hypertension and supporting microvascular health may prevent or delay these conditions.

Area of Science:

  • Neurology
  • Cardiovascular Science
  • Gerontology

Background:

  • Hypertension affects two-thirds of individuals over 60, increasing risks for vascular cognitive impairment and Alzheimer's disease.
  • Aging exacerbates hypertension's negative effects on cerebral microcirculation due to homeostatic dysfunction and reduced cellular stress resilience.

Purpose of the Study:

  • To explore the mechanisms by which hypertension impacts cerebral microcirculation and contributes to cognitive decline.
  • To review the role of aging in exacerbating hypertension-related cerebrovascular damage.
  • To discuss potential therapeutic strategies for preventing or delaying cognitive impairment in hypertensive individuals.

Main Methods:

  • Review of existing literature on hypertension, aging, cerebral microcirculation, and cognitive impairment.
  • Analysis of neuroradiological markers associated with hypertension-induced small vessel disease.
  • Examination of the impact of hypertension on blood-brain barrier integrity, neuroinflammation, and amyloid pathologies.

Main Results:

  • Hypertension compromises cerebral blood supply through microvascular rarefaction, endothelial dysfunction, and neurovascular uncoupling.
  • Disruption of the blood-brain barrier by hypertension leads to neuroinflammation and worsened amyloid pathologies.
  • Neuroradiological findings like white matter hyperintensities, lacunar infarcts, and microhaemorrhages correlate with cognitive decline.

Conclusions:

  • Interventions targeting blood pressure reduction and microvascular health are crucial for managing hypertension-related cognitive decline.
  • Pharmaceutical and lifestyle interventions hold potential for preventing or delaying vascular cognitive impairment and Alzheimer's disease in hypertensive patients.
  • Addressing hypertension and promoting cerebral microvascular health are key strategies for preserving cognitive function in aging populations.

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