Sex-Specific Causes and Consequences of White Matter Damage in a Middle-Aged Cohort.
cognition
cognitive reserve
fractional anisotropy
sex
vascular risk factors
white matter damage
white matter hyperintensities (WMH)
Journal
Frontiers in aging neuroscience
ISSN: 1663-4365
Titre abrégé: Front Aging Neurosci
Pays: Switzerland
ID NLM: 101525824
Informations de publication
Date de publication:
2022
2022
Historique:
received:
06
11
2021
accepted:
14
03
2022
entrez:
1
6
2022
pubmed:
2
6
2022
medline:
2
6
2022
Statut:
epublish
Résumé
To evaluate potential sex-specific effects of multiple cardiovascular risk factors on white matter pathology in normal aging men and women, as well as potential sex-differences in the association of white matter pathology and cognitive functions. We analyzed cross-sectional data of 581 participants (median age: 53 years, 54% women) of the population-based cohort of the BiDirect Study who completed clinical examinations, five neuropsychological tests, and an 3T MRI examination. White matter pathology was determined by the extent of white matter hyperintensities (WMH) on FLAIR images as well as the magnitude of global fractional anisotropy (FA) based on diffusion tensor imaging. Main effects, interaction as well as sex-stratified generalized linear regression models were used to evaluate the moderating effect of sex on the association of hypertension, diabetes mellitus, smoking, and obesity with WMH and FA, respectively. Associations of imaging markers with cognitive test results were determined with linear regression models. Hypertension showed stronger associations with more extensive WMH and less FA in women compared to men. Current smoking was associated with more severe WMH in women only. Adjusted for age and education, WMH were not significantly associated with cognitive tests, but higher FA was associated with better performance in motor function in both sexes and with executive functions in men, even after adjustment for cardiovascular risk factors. We observed a stronger association of hypertension and smoking with white matter damage in women, suggesting a higher susceptibility for vascular pathology in women. However, there was no association of WMH with cognition, and FA was associated with executive function tests only in men, suggesting a higher cognitive reserve in women.
Identifiants
pubmed: 35645786
doi: 10.3389/fnagi.2022.810296
pmc: PMC9131069
doi:
Types de publication
Journal Article
Langues
eng
Pagination
810296Informations de copyright
Copyright © 2022 Bonberg, Wulms, Dehghan-Nayyeri, Berger and Minnerup.
Déclaration de conflit d'intérêts
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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