Interactions between rare variants in DNA repair genes and cardiometabolic risk explain more variability in cognitive function
DNA repair genes and cardiometabolic health interact to influence dementia risk, suggesting combined screening could identify vulnerable individuals.
In a landmark analysis of 376,533 UK Biobank participants, rare variants in 36 DNA repair genes showed significant interactions with a multidimensional cardiometabolic risk index to explain cognitive variability, with associations concentrated in white matter hyperintensities and cognitive processing speed. These findings suggest that cardiometabolic risk amplifies the neurodegenerative effects of DNA repair insufficiency, pointing to combined genomic-metabolic screening for dementia risk stratification.
What the study was
- Study design
- Population-based observational study (UK Biobank, exome sequencing + neuroimaging)
- Population
- UK Biobank participants of white-British ancestry with exome sequencing data
- Sample size
- 376533
- Category
- Genomics/Precision Medicine
- Maturity
- Validated
- Journal
- GeroScience
Why it surfaced
Large-scale (n=376,533) population genomics study providing evidence for cardiometabolic-genetic interaction in cognitive aging; cross-disciplinary finding relevant to both aging/longevity and cardiometabolic risk watchlist topics.
A plain-language summary of published research — not medical advice. Talk to a clinician about your own care.