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Highlighting and Reducing the Impact of Negative Aging Stereotypes During Older Adults' Cognitive Testing
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Does statin use cause memory decline in the elderly?

Katherine Samaras1, Henry Brodaty2, Perminder S Sachdev3

  • 1Diabetes and Metabolism Division, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia; Department of Endocrinology, St Vincent's Hospital, Darlinghurst, New South Wales, Australia.

Trends in Cardiovascular Medicine
|May 15, 2016
PubMed
Summary
This summary is machine-generated.

Statin therapy shows no significant harm to memory in the elderly. This review found moderate evidence that statins do not increase the risk of dementia or memory decline, despite some consumer concerns.

Keywords:
BrainBrain volumeCognitionDementiaDiabetesHMGCoA reductase inhibitorsHeartHypertensionIschemic heart diseaseMagnetic resonanceMemoryStatinsStroke

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Area of Science:

  • Geriatric Medicine
  • Pharmacology
  • Neurology

Background:

  • Statin therapy is widely used for cardiovascular disease prevention.
  • Concerns exist regarding potential adverse effects of statins on memory, particularly in the elderly.
  • Previous reports of statin protection against Alzheimer's disease have been challenged by randomized trials.

Purpose of the Study:

  • To comprehensively review the evidence on the impact of statin therapy on memory and cognitive function in the elderly.
  • To evaluate the association between statin use and the risk of dementia, Alzheimer's disease, and mild cognitive impairment.
  • To assess the effect of statins on global cognitive performance and memory function in older adults.

Main Methods:

  • Systematic review of published evidence.
  • Inclusion of randomized controlled trials (RCTs) and prospective observational cohort studies.
  • Detailed examination of studies focusing on statins and memory in the elderly population.

Main Results:

  • Moderate evidence indicates statin therapy does not increase dementia risk in the elderly.
  • Low-strength evidence suggests no increased risk for Alzheimer's disease.
  • Moderate evidence shows no increased risk for mild cognitive impairment or worsened global cognitive performance.
  • Moderate evidence supports no deterioration of memory function in the elderly.

Conclusions:

  • Overall, moderate evidence suggests statin therapy has neither a significant harmful nor beneficial effect on memory in the elderly.
  • The current literature has limitations, including selection biases and inadequate cognitive testing.
  • Further research is needed to address deficiencies in existing studies regarding statins and cognitive health.