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Zhonghua Yi Xue Za Zhi. 2018 May 8;98(17):1322-1326. doi: 10.3760/cma.j.issn.0376-2491.2018.17.008.

[Genes polymorphism of BIN1 and ApoE in patients with amnestic mild cognitive impairment from Enshi Tujia area].

[Article in Chinese; Abstract available in Chinese from the publisher]

Author information

1
Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China.

Abstract

in English, Chinese

Objective: To investigate the polymorphism of BIN1 and ApoE genes in amnestic mild cognitive impairment (aMCI) patients in Tujia minority area of Enshi, Hubei. Methods: A total of 107 patients with aMCI (aMCI group) and 150 healthy people (healthy control group) during the same period were included between December 2016 and October 2017 in Affiliated Minda Hospital of Hubei University for Nationalities, who were all the Tujia nationality. Three single nucleotide polymorphic site of BIN1 gene rs744373, rs7561528, rs6733839, and two single nucleotide polymorphic site of ApoE gene rs429358, rs7412, and Genotyping and sub-genotyping of ApoE genes were tested using ligase detection reaction technique(LDR), and gene polymorphisms of BIN1 and ApoE were analyzed with Logistic regression analysis. Results: The basic information was not statistically significan different between healthy control group and aMCI group (P>0.05); there were no statistically significant in genotype distribution among the 3 SNPs of BIN1 gene(rs744373, rs7561528, rs6733839) and between the 2 SNPs of ApoE gene(rs429358, rs7412) and its allelic profile (P>0.05), which conformed to Hardy-Weinberg balance; BIN1 gene rs744373 polymorphic site allele C was the risk factor of aMCI (OR 2.33, 95% CI 1.09-4.98, P=0.029), especially BIN1 gene rs744373 polymorphic site recessive model CC/CT+ TT increased the risk of aMCI disease (OR 2.29, 95% CI 1.15-4.59, P=0.019). The difference in genotype distribution of ApoE sub-genotype ε2/2, ε2/3, ε2/4, ε3/3, ε3/4, ε4/4 and allele ε2, ε3, ε4 genes between two groups were significantly different (P<0.05), Carrying ApoEε2 may be a protective factor for aMCI (OR 0.46, 95% CI 0.22-0.96, P=0.039) and carrying ApoE ε4 may be a risk factor for aMCI (OR 2.13, 95% CI 1.18-3.83, P=0.012). Conclusions: The incidence of aMCI in Tujia region of Enshi may be related to the rs744373 polymorphic site of BIN1 gene, ApoEε2 is the protective factor and ApoEε4 is the risk factor for aMCI in Tujia region of Enshi, but it still needs to be further verified by a large sample population.

KEYWORDS:

Apolipoprotein E; Cognitive impairment; Genes; Polymorphism

[Indexed for MEDLINE]

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