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Dementia

Associations of Cholinergic White Matter Hyperintensity Volume with Cognitive Decline and Incident Dementia in Older Adults: A Cohort Study

Strategic Insights

— 1 min read

A recent study published in the BMC Geriatrics journal has provided new insights into the association between white matter hyperintensities (WMHs) within the cholinergic pathways and cognitive impairment in older adults. The research, conducted by a team of scientists from Fudan University, involved a cohort study of 751 non-demented participants, with a mean age of 60 years, from the Taizhou Imaging Study. The study aimed to investigate the associations between cholinergic WMH volume (WMHV) and global cognitive function, cognitive decline, and incident dementia.

Key Takeaways:

  • The study found that cholinergic WMHV was associated with an annual decline of Mini-Mental State Examination (MMSE) (b coefficient, -0.239; P = 0.004) and incident dementia (HR = 3.54; 95%CI: 2.05-6.10).
  • Within the cholinergic pathways, WMHs in corpus callosum and corona radiata were significantly related to incident dementia.
  • Global WMHV was also associated with global cognitive decline (b coefficient, -0.049; P = 0.002), but greater global WMHV only slightly increased the risk of incident dementia (HR = 1.23; 95%CI: 1.11-1.35).
  • Cholinergic WMHV was not associated with MMSE in cross-sectional analysis.

Statistics:

  • 751 non-demented participants were included in the cohort study.
  • The mean age of the participants was 60 years.
  • The study found a significant association between cholinergic WMHV and incident dementia (HR = 3.54; 95%CI: 2.05-6.10).
  • The study also found an association between global WMHV and global cognitive decline (b coefficient, -0.049; P = 0.002).

Sources:

  • BMC Geriatrics. Associations of cholinergic white matter hyperintensity volume with cognitive decline and incident dementia in older adults: a cohort study. 2025;25(1):768.
  • NewsRx. Reports from Fudan University Add New Data to Findings in Dementia (Associations of cholinergic white matter hyperintensity volume with cognitive decline and incident dementia in older adults: a cohort study). Mental Health Weekly Digest. October 20, 2025; p 767.

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