Wan-Yun Hsiao1,2, Chia-Wen Tsai3, Wen-Shin Chang3,4, Shengyu Wang5, Che-Yi Chao6, Wei-Chun Chen2,7, Te-Chun Shen8,4, Te-Chun Hsia9,3,7, DA-Tian Bau8,4,10. 1. Department of Respiratory Therapy, China Medical University Hospital, Taichung, Taiwan, R.O.C. 2. Department of Respiratory Therapy, China Medical University, Taichung, Taiwan, R.O.C. 3. Terry Fox Cancer Research Laboratory - Translational Medicine Research Center, China Medical University Hospital, Taichung, Taiwan, R.O.C. 4. Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan, R.O.C. 5. Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Xi'an Medical University, Xi'an, P.R. China. 6. Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan, R.O.C. 7. Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan, R.O.C. 8. Terry Fox Cancer Research Laboratory - Translational Medicine Research Center, China Medical University Hospital, Taichung, Taiwan, R.O.C. datian@mail.cmuh.org.tw artbau2@gmail.com. 9. Department of Respiratory Therapy, China Medical University, Taichung, Taiwan, R.O.C. datian@mail.cmuh.org.tw artbau2@gmail.com. 10. Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan, R.O.C.
Abstract
AIM: 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. MATERIALS AND METHODS: 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. RESULTS: 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 gender or age were found. CONCLUSION: Although XRCC3 plays a role in asthma etiology, the variant XRCC3 genotypes do not serve as practicable predictive markers for asthma risk in Taiwanese. Copyright
AIM: 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. MATERIALS AND METHODS: 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. RESULTS: Unlike Caucasian populations, no polymorphic genotypes at XRCC3rs3212057 or rs28903081 were found among the Taiwanese. For the genotypes of XRCC3rs1799794, rs45603942, rs861530, rs1799796 and rs861539, the percentages of hetero-and homo-variant genotypes were not differentially represented between the asthmapatient 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 gender or age were found. CONCLUSION: Although XRCC3 plays a role in asthma etiology, the variant XRCC3 genotypes do not serve as practicable predictive markers for asthma risk in Taiwanese. Copyright
Authors: Mohamed A Ghonim; Kusma Pyakurel; Jihang Ju; Paulo C Rodriguez; Matthew R Lammi; Christian Davis; Mohammad Q Abughazleh; Moselhy S Mansy; Amarjit S Naura; A Hamid Boulares Journal: J Allergy Clin Immunol Date: 2014-10-19 Impact factor: 10.793
Authors: Wanxing Eugene Ho; Chang Cheng; Hong Yong Peh; Fengguo Xu; Steven R Tannenbaum; Choon Nam Ong; W S Fred Wong Journal: Free Radic Biol Med Date: 2012-05-23 Impact factor: 7.376