目的比较分析广州农村人口基质金属蛋白酶-3(MMP-3)基因型分布特点,并探讨其与血压的关系。方法选取广州番禺大石镇三个村40～70岁农村人口作为研究对象,总共680人,其中男314人,女366人。受试者进行相关的问卷调查和血压测量,并空腹抽血...目的比较分析广州农村人口基质金属蛋白酶-3(MMP-3)基因型分布特点,并探讨其与血压的关系。方法选取广州番禺大石镇三个村40～70岁农村人口作为研究对象,总共680人,其中男314人,女366人。受试者进行相关的问卷调查和血压测量,并空腹抽血,PCR扩增和测序,检测受试者MMP-3 5A/6A基因型。结果本研究人群基因型分布6A/6A、5A/5A、5A/6A分别为82.6%、1.8%和15.6%,不同性别之间基因型频率和等位基因频率无差异。各基因型频率分布无年龄差异。男性不同基因型频率(6A/6A v 5A/6A+5A/5A)之间血压水平无差异,女性5A/6A+5A/5A基因型的收缩压和舒张压水平均高于6A/6A基因型。高血压组与正常血压组比较5A等位基因频率更高。结论广州农村人群MMP-3基因型以6A纯合子为主,5A纯合子比例明显低于西方人,5A等位基因与高血压发病有关,尤其在女性,5A等位基因影响收缩压和舒张压水平。展开更多
Objectives To analyses heart rate （HR） distribution of healthy adults in the south China community and evaluate relative risk of HR to total cause of death and cardiac cerebral vascular death. Methods Analytical dat...Objectives To analyses heart rate （HR） distribution of healthy adults in the south China community and evaluate relative risk of HR to total cause of death and cardiac cerebral vascular death. Methods Analytical data come from the baseline survey and follow-up visits in the PRC-USA Collaborative Study of Cardiovascular Epidemiology in urban and rural samples of Guangzhou. The baseline survey was initiated in 1983 and 1984, and rescanned in 1987 and 1988. Since 1991 Follow-up visits for endpoint events were carried once every two years. Average follow-up year was 16.2 from baseline to 2000. People excluded from cardiac cerebral vascular disease, diabetes and other various chronic diseases were regarded as ＂healthy adults＂. Heart rates of these subjects were measured on resting electrocardiogram. Endpoint evens include： total cause of death, first attack of coronary disease and cerebral vascular events. SAS software was used for analysis. Cox Proportional Hazards model was used to evaluate the impact of HR on total death and cardiac cerebral vascular disease. Results A total of 4570 men and women aged 35-55 years from urban and rural Guangzhou were investigated. 3493 healthy subjects were enrolled in the analysis, including 1694 men and 1799 women. Mean oftheHRis （67.9 ±10.6） beats/min （bpm） in the whole population, （66.3±10.7）bpm in men and （69.3± 10.4） in women. The 52 percentile of the HR was 51 in men and 54 in women. The 952 percentile of the HR was 85 in men and 88 in women. Single correlation analysis showed there was negative relationship between age and HR, but it was only statistical significant in female. Analysis with Cox Proportional Hazards model show that HR 〈 50 bpm tops the risk of total causes of death （1.725）and HR 50-59 bpm decreased the risk of total causes of death （0.843）. Relative risk of cardiac cerebral vascular events exceeds 1 when HR 〈 50 and 〉90 bpm （1.486 and 7.008 respectively）. It was less than 1 in other groups but there was no significant difference between each group. Conclusions Traditional normal range of HR in adult should be adjusted. In certain extent lower HR is advantageous to decrease cardiac cerebral vascular events, total causes of death and has better prognosis.展开更多
文摘目的比较分析广州农村人口基质金属蛋白酶-3(MMP-3)基因型分布特点,并探讨其与血压的关系。方法选取广州番禺大石镇三个村40～70岁农村人口作为研究对象,总共680人,其中男314人,女366人。受试者进行相关的问卷调查和血压测量,并空腹抽血,PCR扩增和测序,检测受试者MMP-3 5A/6A基因型。结果本研究人群基因型分布6A/6A、5A/5A、5A/6A分别为82.6%、1.8%和15.6%,不同性别之间基因型频率和等位基因频率无差异。各基因型频率分布无年龄差异。男性不同基因型频率(6A/6A v 5A/6A+5A/5A)之间血压水平无差异,女性5A/6A+5A/5A基因型的收缩压和舒张压水平均高于6A/6A基因型。高血压组与正常血压组比较5A等位基因频率更高。结论广州农村人群MMP-3基因型以6A纯合子为主,5A纯合子比例明显低于西方人,5A等位基因与高血压发病有关,尤其在女性,5A等位基因影响收缩压和舒张压水平。
文摘Objectives To analyses heart rate （HR） distribution of healthy adults in the south China community and evaluate relative risk of HR to total cause of death and cardiac cerebral vascular death. Methods Analytical data come from the baseline survey and follow-up visits in the PRC-USA Collaborative Study of Cardiovascular Epidemiology in urban and rural samples of Guangzhou. The baseline survey was initiated in 1983 and 1984, and rescanned in 1987 and 1988. Since 1991 Follow-up visits for endpoint events were carried once every two years. Average follow-up year was 16.2 from baseline to 2000. People excluded from cardiac cerebral vascular disease, diabetes and other various chronic diseases were regarded as ＂healthy adults＂. Heart rates of these subjects were measured on resting electrocardiogram. Endpoint evens include： total cause of death, first attack of coronary disease and cerebral vascular events. SAS software was used for analysis. Cox Proportional Hazards model was used to evaluate the impact of HR on total death and cardiac cerebral vascular disease. Results A total of 4570 men and women aged 35-55 years from urban and rural Guangzhou were investigated. 3493 healthy subjects were enrolled in the analysis, including 1694 men and 1799 women. Mean oftheHRis （67.9 ±10.6） beats/min （bpm） in the whole population, （66.3±10.7）bpm in men and （69.3± 10.4） in women. The 52 percentile of the HR was 51 in men and 54 in women. The 952 percentile of the HR was 85 in men and 88 in women. Single correlation analysis showed there was negative relationship between age and HR, but it was only statistical significant in female. Analysis with Cox Proportional Hazards model show that HR 〈 50 bpm tops the risk of total causes of death （1.725）and HR 50-59 bpm decreased the risk of total causes of death （0.843）. Relative risk of cardiac cerebral vascular events exceeds 1 when HR 〈 50 and 〉90 bpm （1.486 and 7.008 respectively）. It was less than 1 in other groups but there was no significant difference between each group. Conclusions Traditional normal range of HR in adult should be adjusted. In certain extent lower HR is advantageous to decrease cardiac cerebral vascular events, total causes of death and has better prognosis.
