1. Hypertension may lead to cognitive dysfunction in older adults via methylmalonic acid: evidence from NHANES 2011–2014 population
- Author
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Ying Xu, Rucheng Chen, Paulus Torkki, Weijun Zheng, and An Chen
- Subjects
Hypertension ,Cognitive impairment ,Methylmalonic acid ,Older adults ,Mediation analysis ,Geriatrics ,RC952-954.6 - Abstract
Abstract Background An enriched understanding is necessary concerning the association between hypertension and cognitive impairment in older adults, particularly regarding the potential underlying mechanisms at a biological level. This study aimed to explore the mediating role of methylmalonic acid (MMA) in the hypertension-cognition link in the older population. Methods A total of 2762 adults (age > = 60 years) from the National Health and Nutrition Examination Survey (NHANES) 2011–2014 participated. Cognitive function was assessed using a combination of the Animal Fluency Test (AFT), the Digit Symbol Substitution Test (DSST), and the Consortium to Establish a Registry for Alzheimer's Disease (CERAD) Word List Learning Test. Self-reported hypertension diagnosis, antihypertensive medications use, and blood pressure examinations were used to identify hypertension. Serum MMA (sMMA) levels were collected. Weighted multiple linear regressions and mediation analysis were applied. A subgroup analysis by sex and age was performed. Results After adjusting for potential confounding factors, we observed a significant mediating effect of the sMMA level in the hypertension-cognition link, accounting for 11.14% (95% CI 4.09%-14.00%, p = 68) to address MMA-related cognitive decline.
- Published
- 2024
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