Does the geographical gradient of ApoE4 allele exist in China? A systemic comparison among multiple Chinese populations.

Abstract excerpt

The allelic frequencies of apolipoprotein E (apoE) vary substantially around the world. There is a conspicuous south-to-north gradient of e4 frequencies in Europe, with the proportion of e4 carriers from only 10-15% in the south to 40-50% in the north. The mechanism may be related to the possibility that e4 carriers are less likely to develop vitamin D deficiency. In addition, Asian populations traditionally have...

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