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19 July 2018 : Laboratory Research  

Polymorphism rs1052536 in Base Excision Repair Gene Is a Risk Factor in a High-Risk Area of Neural Tube Defects in China

Guannan Li1BE, Xin Wang1BE, Xiuwei Wang2DG, Zhen Guan2CD, Jin Guo2DG, Fang Wang2CD, Jianzhao Zhang1F, Bo Niu2DF, Ting Zhang2G, Jianhua Wang2ADEG*, Jian Yang1ADE

DOI: 10.12659/MSM.907492

Med Sci Monit 2018; 24: LBR5015-5026

Abstract

BACKGROUND: DNA Base Excision Repair Gene-DNA LigaseIII (LIG3) is an important repair gene in the repair pathway and plays an important role in maintaining the integrity of mitochondria. Rs1052536 and rs3135967 polymorphisms of the gene are associated with lung cancer, keratoconus, and Fuchs endothelial corneal dystrophy. There is no previously published report on the relationship between the polymorphisms and neural tube defects (NTDs).

MATERIAL AND METHODS: Mass ARRAY iPLEX was used to determine the distribution of the polymorphisms in the case group of 108 NTD pregnant women and a control group of 233 normal healthy pregnant women to examine the relevance of their polymorphisms and NTD occurrence.

RESULTS: The homozygotes of rs1052536 TT were associated with an increased risk for NTDs than CC (P=0.014, OR=2.31, 95%CI [1.17–4.54]), and variants of rs1052536 T were associated with an increased risk of NTDs (P=0.024, OR=1.50, 95%CI [1.06–2.13]). The stratified analysis showed that TT genotype of rs1052536 increased the risk of anencephaly (P=0.016, OR=2.69, 95%CI [1.18–6.10]) and the T allele significantly increased the risk of cranial NTDs (P=0.033, OR=1.56, 95%CI [1.04–2.35]).

CONCLUSIONS: Rs1052536 in LIG3 gene might be a potential genetic risk factor in a high-risk area of NTDs in China.

Keywords: Case-Control Studies, DNA Repair, Neural Tube Defects, Polymorphism, Single Nucleotide

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750