The effects of statins on prevention of stroke and dementia: a review

Arthur R Menezes1, Carl J Lavie, Richard V Milani

  • 1Department of Cardiovascular Diseases, John Ochsner Heart and Vascular Institute, Ochsner, Clinical School-The University of Queensland School of Medicine, New Orleans, Louisiana, USA.

Insights

Statins significantly reduce stroke risk, particularly in older adults. These cholesterol-lowering drugs also offer neuroprotective benefits, though their role in preventing dementia remains under investigation.

Area of Science:

  • Neurology
  • Cardiovascular Medicine
  • Pharmacology

Background:

  • Stroke is a leading cause of death and healthcare expenditure, with prevalence increasing with age.
  • Statins have demonstrated efficacy in both primary and secondary stroke prevention over the past two decades.
  • The relationship between low-density lipoprotein cholesterol and cerebrovascular accidents (CVA) is well-established, with statins showing beneficial effects.

Purpose of the Study:

  • To examine the role of statins in stroke prevention.
  • To explore the lipid-lowering and cholesterol-independent pleiotropic effects of statins.
  • To review the current evidence on statin use for dementia prevention, especially vascular dementia.

Main Methods:

  • Review of clinical studies and data on statin use for stroke prevention.
  • Analysis of research on the mechanisms of action of statins, including lipid-lowering and pleiotropic effects.
  • Evaluation of evidence regarding statins and their impact on dementia, particularly vascular causes.

Main Results:

  • Substantial data support statin use for reducing stroke incidence.
  • Statins lower low-density lipoprotein cholesterol, a key factor in cerebrovascular accidents.
  • Statins possess cholesterol-independent pleiotropic properties contributing to neuroprotection.

Conclusions:

  • Statins are effective in reducing the risk of stroke.
  • Pleiotropic effects of statins may offer additional neuroprotective benefits.
  • The role of statins in dementia prevention, particularly vascular dementia, requires further investigation.

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