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Variation at the Klotho gene locus does not affect cognitive function in up to 335,074 British Caucasians in the UK Biobank

By Hasnat Amin, Fotios Drenos, Alexandra I Blakemore

Posted 15 Nov 2019
bioRxiv DOI: 10.1101/838409

The proportion of older adults in Western populations is increasing and there is, therefore, a need to define factors affecting maintenance of physical and cognitive health in old age. Variations in the Klotho ( KL ) gene, and specifically the KL -VS haplotype, have been identified by several authors as potentially influencing cognitive function and decline. We have attempted to verify the reported associations between KL variants, including the KL -VS haplotype, and cognitive function in up to 335,074 British Caucasian participants aged 40-79 years from the UK Biobank. We do not find evidence that KL -VS affects cognitive function or its decline with increasing age. We examined a further 244 KL variants and found that rs117650866 was associated with Prospective Memory, but could not replicate this in follow-up samples. In conclusion, there is insufficient evidence in the UK Biobank to support the concept that KL variants affect cognitive function or its rate of decline.

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