The strongest variant for Alzheimer's is also linked to higher IQ (APOE). Selecting against Alzheimer is selecting for IQ. Selection is always multi-dimensional due to ubiquitous genetic correlations, but they mostly benevolent.https://www.technologyreview.com/s/612494/despite-crispr-baby-controversy-harvard-university-will-begin-gene-editing-sperm/ …
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Replying to @Race__Realist @KirkegaardEmil
There's also a possibility that Alzheimer's could be type 3 diabetes. If Alzheimer's is type 3 diabetes, then....?https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2769828/ …
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Replying to @Race__Realist @KirkegaardEmil
'"No significant association was found between APOE polymorphic alleles and different (IQ) measures. Interestingly, a portion of demographic and lifestyle characteristics, including age, smoking and sleep quality were significantly associated with different IQ measures."
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Replying to @Race__Realist @KirkegaardEmil
N=607 Chinese college students.https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4648581/ …
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It shows up in newer well powered gwas. That study you linked is a 2011 candidate gene study
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