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Published on: April 1, 2019
Association between the X-ray repair cross-complementing group 1 Arg194Trp polymorphism and thyroid carcinoma
1Department of Head and Neck Surgery, Zhejiang Provincial Cancer Hospital, Hangzhou, China.
Abstract:
Previous case-control studies having investigated the relationship between the X-ray repair cross-complementing group 1 (XRCC1) Arg194Trp polymorphism and thyroid cancer (TC) have drawn inconsistent conclusions. The current study aimed to clarify the role of this polymorphism in susceptibility to TC. An up-to-date search of PubMed and Web of Science databases was conducted, including articles published up to August 2015. Crude odds ratios (ORs) with 95%CIs were calculated to establish the association between the XRCC1 Arg194Trp polymorphism and TC risk. Five studies were used, comprising 911 patients and 1476 controls. Our meta-analysis indicated that this polymorphism is associated with TC risk in Caucasians (TrpTrp vs ArgArg: OR = 5.72, 95%CI = 1.39-23.54; ArgTrp vs ArgArg: OR = 1.20, 95%CI = 0.87-1.66; dominant model: OR = 1.31, 95%CI = 0.96-1.79; recessive model: OR = 0.18, 95%CI = 0.04-0.73). This investigation demonstrates that the XRCC1 Arg194Trp polymorphism constitutes a risk factor for TC in Caucasian individuals.
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