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Evaluation of the Cognitive Performance of Hypertensive Patients with Silent Cerebrovascular Lesions
Published on: April 23, 2021
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Higher Total Cholesterol Concentration May Be Associated with Better Cognitive Performance among Elderly Females
Ke Pang1, Chunxia Liu1, Jianbin Tong1
1Department of Anesthesiology, Third Xiangya Hospital, Central South University, Changsha 410013, China.
Nutrients
|October 14, 2022
Summary
Higher total cholesterol may protect cognitive function in elderly women without a history of stroke. This association was stronger in women with higher education levels, suggesting a potential link between cholesterol and brain health.
Area of Science:
- Neuroscience
- Gerontology
- Cardiovascular Health
Background:
- The brain has the highest cholesterol concentration; serum cholesterol impacts brain aging and cognition.
- The relationship between total serum cholesterol and cognitive function is not fully understood.
- This study investigates cholesterol's role in cognitive performance in older adults.
Purpose of the Study:
- To determine the association between total blood cholesterol and cognitive performance.
- To examine this relationship in elderly females without a history of stroke.
- To explore potential differences based on sex and education level.
Main Methods:
- Population-based, cross-sectional study (2011-2014) using US National Health and Nutrition Examination Survey (NHANES) data.
- Included elderly participants (over 60) without a history of stroke.
- Logistic regression and restricted cubic splines analyzed total blood cholesterol (exposure) and cognitive performance (outcome).
Main Results:
- 1309 females and 1272 males were analyzed.
- In females, higher total cholesterol correlated with better performance in digit symbol substitution and animal fluency tests.
- This association persisted after adjusting for covariates and was not observed in males.
Conclusions:
- Elevated total cholesterol in later life may be protective for cognitive function in women over 60 without prior stroke.
- The protective effect was more significant in women with higher educational attainment.
- Findings suggest a sex-specific, education-dependent role of cholesterol in cognitive health.
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