Statins and cognition: Modifying factors and possible underlying mechanisms.
Level 5 - mechanism / opinion, no new human data
Narrative review synthesizing existing literature and proposed mechanisms without systematic review methods
PubMed 36046494 · doi:10.3389/fnagi.2022.968039
What was done
This narrative review examined the literature on the relationship between statin use, cognitive performance, and various dementia etiologies, particularly Alzheimer's disease. The authors summarized individual-level and statin-specific modifying factors, outlined proposed biological mechanisms underlying both protective and adverse cognitive effects, and evaluated potential reasons for conflicting results across published studies.
What was found
The abstract reports no numerical findings, effect sizes, or quantitative data. It reports ongoing debate regarding whether statins exert positive or negative effects on cognitive performance, with study discrepancies attributed to individual modifying factors, drug characteristics, and methodological differences.
Why it matters
Because more than 200 million people worldwide use statins and are often older adults at risk for cognitive decline, understanding the factors behind contradictory research findings helps clarify risk profiles and informs the design of future clinical studies.
Limits
The paper is a narrative review that provides no new empirical data, quantitative meta-analysis, or systematic search methodology. The abstract does not report the number of studies reviewed or detailed inclusion criteria.
Cited by
- supports Over 200 million people worldwide take statins on a daily basis.