ArticleAmerican journal of hypertension2026
Associations of Blood Pressure Level and Variability With Cortical Thickness: A Cross-Sectional Analysis From the Maracaibo Aging Study.
Article in American journal of hypertension, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundAlthough high blood pressure (BP) level and variability are associated with Alzheimer's disease (AD), their relationship with cortical thickness in brain regions that are associated with AD is unclear. Furthermore, the role of 24-h BP has not been examined. We investigated the associations of office and ambulatory BP measures with cortical thickness in brain regions implicated in AD.
methodsWe performed a cross-sectional analysis of 304 participants without dementia from a population-based study with office and 24-h BP and magnetic resonance imaging data. We considered cortical thickness values derived from 10 regions throughout the frontal, parietal, and temporal lobes, and the posterior cingulate cortex that are associated with risk and progression of AD. The association between BP and cortical thickness was tested using adjusted linear regression models.
resultsThe mean age was 58.1 years and 231 (76%) were women. Higher office systolic BP was associated with thinner temporal (β = -0.059; 95% confidence interval [CI], -0.112, -0.005) and posterior cingulate cortex (β = -0.095; 95% CI, -0.145, -0.045). 24-h and nighttime BP levels were associated with thinner seven regions, with β-estimates ranging from -0.103 (95% CI, -0.182, -0.012) to -0.045 (95% CI, -0.080, -0.010). A higher 24-h BP variability was associated with thinner middle frontal (β = -0.156; 95% CI, -0.282, -0.030) and middle temporal (β = -0.146; 95% CI, -0.268, -0.024) gyri, and posterior cingulate cortex (β = -0.134; 95% CI, -0.026, -0.009).
conclusionsIncreased ambulatory BP level and variability are associated with cortical thinning in regions associated with AD. Better BP evaluation with out-of-office approaches might reduce brain structural changes associated with AD.
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