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A major role for cardiovascular burden in age-related cognitive decline

Chengxuan Qiu1, Laura Fratiglioni1

  • 1Division of Aging Research Center, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet and Stockholm University, Gävlegatan 16, 11330 Stockholm, Sweden.

Nature Reviews. Cardiology
|January 14, 2015
PubMed

Insights

Maintaining cardiovascular health, especially from middle age, is crucial for reducing the risk of dementia. Addressing vascular risk factors can help prevent cognitive decline and dementia later in life.

Area of Science:

  • Gerontology and Neurology
  • Cardiovascular Medicine
  • Public Health

Background:

  • Dementia and cardiovascular disease (CVD) incidence rise with age.
  • Atherosclerosis and arteriosclerosis link the heart and brain in aging.
  • Shared vascular risk factors (VRFs) like hypertension and diabetes connect cognitive decline and CVDs.

Purpose of the Study:

  • To review literature on the association between cardiovascular burden and cognitive decline/dementia across the life course.
  • To highlight the impact of vascular risk factors on dementia risk.
  • To explore the role of cardiovascular health strategies in dementia prevention.

Main Methods:

  • Literature review of studies investigating cardiovascular burden and cognitive function.
  • Analysis of shared risk factors and pathophysiological mechanisms.
  • Examination of life-course perspectives on dementia and cardiovascular health.

Main Results:

  • Mixed dementia, a combination of cerebrovascular lesions and neurodegeneration, is common in older adults (≥75 years).
  • Accumulation of VRFs in middle age (40-59 years) significantly increases dementia risk.
  • Declining dementia risk trends in high-income countries correlate with reduced cardiovascular events, supporting the link.

Conclusions:

  • Cardiovascular health significantly influences cognitive decline and dementia risk throughout life.
  • Strategies promoting cardiovascular health, initiated early, may delay dementia onset.
  • Managing vascular risk factors is a key preventive approach for dementia.

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