Association of Polymorphisms in DNA Repair Gene XRCC3 with Asthma in Taiwan

In Vivo
Wan-Yun HsiaoDa-Tian Bau

Abstract

Accumulating evidence suggests that DNA damage and repair play a role in asthma etiology, however, little is known about the contribution of genotypes of DNA repair genes to asthma susceptibility. This study aimed to examine the contribution of genotypes of DNA double-strand break repair gene X-ray repair cross complementing protein 3 (XRCC3) and its polymorphisms to asthma risk in the Taiwanese. Associations of seven XRCC3 genotypes, namely rs1799794, rs45603942, rs861530, rs3212057, rs1799796, rs861539 and rs28903081, with the risk of asthma were investigated among 198 patients with asthma and 453 non-asthma controls by polymerase chain reaction-restriction fragment length polymorphism genotyping methodology. Unlike Caucasian populations, no polymorphic genotypes at XRCC3 rs3212057 or rs28903081 were found among the Taiwanese. For the genotypes of XRCC3 rs1799794, rs45603942, rs861530, rs1799796 and rs861539, the percentages of hetero-and homo-variant genotypes were not differentially represented between the asthma patient and the non-asthma control groups. In addition, there was no differential distribution of allelic frequencies for these XRCC3 polymorphic sites between the two groups. No interaction of these genotypes with...Continue Reading

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