Effects of Plasma Lipids and Statins on Cognitive Function

Rui Li1, Tian-Jun Wang2, Pei-Yuan Lyu3

  • 1Graduate School, Hebei Medical University, Shijiazhuang, Hebei 050017, China.

Chinese Medical Journal
|February 17, 2018
PubMed

Insights

The link between plasma lipids and cognitive function remains unclear, with ongoing research into potential mechanisms. While statins are widely used, their long-term effects on cognition and dementia are not definitively established, though rare adverse effects are a concern.

Area of Science:

  • Neurology and Gerontology
  • Cardiovascular Medicine
  • Pharmacology

Background:

  • Dementia is a leading cause of death in developed nations, necessitating research into cognitive function and vascular risk factors.
  • The complex and controversial relationship between plasma lipids and cognitive function requires further investigation.
  • Increasing life expectancy highlights the need for therapies to prevent and treat cognitive impairment and dementia.

Purpose of the Study:

  • To review the existing literature on the effects of plasma lipids on cognitive function.
  • To analyze the impact of statin use on cognitive function and dementia.
  • To explore the underlying mechanisms linking plasma lipids, statins, and cognition.

Main Methods:

  • A comprehensive search of the PubMed database was conducted.
  • Keywords included "plasma lipids," "hyperlipidemia," "hypercholesterolemia," "statins," and "cognition function."
  • Retrieved articles were reviewed to analyze effects and mechanisms.

Main Results:

  • The relationship between plasma lipids and cognitive function is not definitively established.
  • Potential mechanisms include blood-brain barrier injury, effects on cerebral microvasculature, amyloid deposition, and neuroprotection.
  • Most statin-cognition studies are observational; randomized controlled trials are limited, leaving long-term effects elusive. Rare adverse cognitive effects of statins are noted in susceptible individuals.

Conclusions:

  • The association between plasma lipids, statins, and cognitive function is complex and not fully understood.
  • Further research into the mechanisms is crucial for understanding cognitive impairment and dementia.
  • Identifying these mechanisms may inspire novel therapeutic and preventive strategies for cognitive disorders.
Abstract

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