ArticleBrain communications2026
Regional blood-brain barrier dysfunction maps to lower performance in cognitive ageing.
Article in Brain communications, 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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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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13 authors.
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Abstract
Age-related cognitive decline is a common and growing public health challenge, associated with loss of independence, reduced quality of life, increased caregiver burden and substantial healthcare and societal costs. Yet cognitive decline in ageing is heterogeneous, and current clinical constructs do not reliably capture the underlying biological mechanisms or predict progression to dementia. This cross-sectional study examined whether blood-brain barrier dysfunction (BBBD) provides a biologically supported correlate of cognitive performance beyond clinical diagnosis. The study included 46 patients with mild cognitive impairment (MCI), 46 age-matched controls and 43 young controls. BBBD was assessed using dynamic contrast-enhanced MRI in 42 patients with MCI and all controls, alongside volumetric brain analysis. Standardized NeuroTrax cognitive assessment data were analysed for 41 MCI patients and 19 age-matched controls. BBBD was analysed using the BBBdetect software
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