Bing-Jian Wang1, Jie Liu2, Jin Geng3, Qing Zhang3, Ting-Ting Hu3, Biao Xu4. 1. Department of Cardiology, Huai'an First People's Hospital, Nanjing Medical UniversityHuai'an, China; Department of Cardiology, Drum Tower Clinical Medical Hospital, Nanjing Medical UniversityNanjing, China. 2. Department of Biochip Laboratory, Yantai Yuhuangding Hospital of Qingdao University Yantai, China. 3. Department of Cardiology, Huai'an First People's Hospital, Nanjing Medical University Huai'an, China. 4. Department of Cardiology, Drum Tower Clinical Medical Hospital, Nanjing Medical University Nanjing, China.
Abstract
BACKGROUND: Previous studies have investigated the associations between interleukin-10 (IL-10) gene polymorphisms (-592C/A, -819C/T and -1082G/A) and risk of coronary artery disease (CAD). However, the results were inconsistent. The aim of this study was to clarify the relationship between IL-10 polymorphisms and CAD risk by a meta-analysis approach. METHODS: The PubMed, Embase, Web of Science, China National Knowledge Infrastructure (CNKI) and Wanfang databases were searched according to predefined criteria for all relevant studies published before June 1, 2015. Pooled odds ratios (ORs) and 95% confidence intervals (95% CIs) were computed to assess the association. RESULTS: 24 eligible studies were enrolled including 9736 CAD patients and 8606 controls. We observed a significant decreased risk of CAD for IL-10 -819C/T polymorphism (T allele vs. C allele:OR = 0.91, 95% CI = 0.84-0.99; TT vs. CT + CC:OR = 0.82, 95% CI = 0.69-0.98), especially in Asians (T allele vs. C allele:OR = 0.76, 95% CI = 0.60-0.96; TT vs. CC:OR = 0.51, 95% CI = 0.27-0.96; TT vs. CT + CC:OR = 0.62, 95% CI = 0.44-0.88). Moreover, we found IL-10 -1082G/A polymorphism might contribute to an increased CAD risk in Asians (AA vs. GG:OR = 1.89, 95% CI = 1.36-2.64; AA vs. AG + GG:OR = 1.39, 95% CI = 1.14-1.68) but not in other ethnic groups. However, no significant association between the IL-10 -592C/A polymorphism and CAD risk was observed. CONCLUSIONS: Our results indicated that IL-10 -819C/T and IL-10 -1082G/A polymorphisms significantly and race-specifically correlate with CAD risk.
BACKGROUND: Previous studies have investigated the associations between interleukin-10 (IL-10) gene polymorphisms (-592C/A, -819C/T and -1082G/A) and risk of coronary artery disease (CAD). However, the results were inconsistent. The aim of this study was to clarify the relationship between IL-10 polymorphisms and CAD risk by a meta-analysis approach. METHODS: The PubMed, Embase, Web of Science, China National Knowledge Infrastructure (CNKI) and Wanfang databases were searched according to predefined criteria for all relevant studies published before June 1, 2015. Pooled odds ratios (ORs) and 95% confidence intervals (95% CIs) were computed to assess the association. RESULTS: 24 eligible studies were enrolled including 9736 CAD patients and 8606 controls. We observed a significant decreased risk of CAD for IL-10-819C/T polymorphism (T allele vs. C allele:OR = 0.91, 95% CI = 0.84-0.99; TT vs. CT + CC:OR = 0.82, 95% CI = 0.69-0.98), especially in Asians (T allele vs. C allele:OR = 0.76, 95% CI = 0.60-0.96; TT vs. CC:OR = 0.51, 95% CI = 0.27-0.96; TT vs. CT + CC:OR = 0.62, 95% CI = 0.44-0.88). Moreover, we found IL-10-1082G/A polymorphism might contribute to an increased CAD risk in Asians (AA vs. GG:OR = 1.89, 95% CI = 1.36-2.64; AA vs. AG + GG:OR = 1.39, 95% CI = 1.14-1.68) but not in other ethnic groups. However, no significant association between the IL-10-592C/A polymorphism and CAD risk was observed. CONCLUSIONS: Our results indicated that IL-10-819C/T and IL-10-1082G/A polymorphisms significantly and race-specifically correlate with CAD risk.
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