Association between XPD Lys751Gln polymorphism and esophageal cancer susceptibility in China: a meta-analysis based on 12 case-control studies
2021
MA, Jinguo(Hulun Buir Medical School of Nationalities University of Inner Mongolia) | ZHANG, Bing(Hulun Buir Medical School of Nationalities University of Inner Mongolia) | ZHANG, Shuanglong | GUAN, Zhihui | SUN, Bin(The Affiliated Hulun Buir Hospital of Soochow University) | CHANG, Xiaojing
Abstract Many studies have analyzed the relation about xeroderma pigmentosum group D (XPD) Lys751Gln polymorphism on esophageal cancer risk; however, the results were inconclusive. The present study was designed to assess the relationship in China. We searched the relevant articles from the databases of PubMed, Springer Link, Ovid, Chinese Wanfang Database, CNKI and Chinese Biology Medicine up to December 2019. An OR with the corresponding 95%CI was adopted to evaluate this association. This meta-analysis included 12 studies with 4195 esophageal cancer cases and 4762 controls. Overall, a positive association between XPD Lys751Gln and esophageal cancer risk was found in all the analysis model (Gln vs. Lys, OR= 1.26, 95% CI= 1.14-1.44; Gln/Gln vs. Lys/Lys, OR= 1.73, 95% CI= 1.29-2.31; Gln/Gln vs. Lys/Lys + Asp/Asn, OR= 1.63, 95% CI= 1.22-2.18; Gln/Gln+ Asp/Asn vs. Lys/Lys, OR= 1.25, 95% CI= 1.13-1.39). Subgroup analyses by geographic area and source of controls were further conducted; there was no substantial change in subgroup analyses. Our study suggested that XPD Lys751Gln polymorphism could increase the risk of esophageal cancer in China. Further studies in other ethnic populations are wanted to confirm these conclusions.
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