A genetic lens on cognition in South Asia
A study of over 2,600 older adults in India has identified genetic variants that are more common in the Indian population and are associated with cognitive function. The research, published in Alzheimer’s & Dementia, analyzed 3.43 million variants enriched in India compared to European, East Asian, and African ancestries. The implicated genes are involved in pathways related to cardiovascular health, neurocognition, and inflammation, and some variants showed sex-specific effects on cognitive performance.
Why it might matter to you:
This work underscores the critical importance of population-specific genetic research for understanding neurodegenerative disease risk. For a professional focused on actionable biomarkers, it highlights that a one-size-fits-all approach to genetic or proteomic signatures may be insufficient. It suggests that validating diagnostic assays in diverse global cohorts is essential for clinical accuracy and utility.
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