Significant association of insulin and proinsulin with clustering of cardiovascular risk factors  

作　　者：En-ZhiJia Zhi-JianYang Shi-WeiChen Guang-YaoQi Chun-FaYou Jian-FengMa Jing-XinZhang Zhen-ZhenWang Wei-ChongQian Xin-LiLi Hai-YanWang Wen-ZhuMa 

机构地区：[1]DepartmentofCardiovascularMedicine,theFirstAffiliatedHospitalofNanjingMedicalUniversity,Nanjing210029,JiangsuProvince,China [2]TheDiseaseControlCenterofPizhouCity,Pizhou221300,JiangsuProvince,China [3]DepartmentofCentralClinicalLaboratory,theFirstAffiliatedHospitalofNanjingMedicalUniversity,Nanjing210029,JiangsuProvince,China [4]DepartmentofNuclearMedicine,theFirstAffiliatedHospitalofNanjingMedicalUniversity,Nanjing210029,JiangsuProvince,China

出　　处：《World Journal of Gastroenterology》2005年第1期149-153,共5页世界胃肠病学杂志（英文版）

摘　　要：AIM: To investigate the association between true insulin and proinsulin and clustering of cardiovascular risk factors.METHODS: Based on the random stratified sampling principles, 1196 Chinese people (533 males and 663 females,aged 35-59 years with an average age of 46.69 years) were recruited. Biotin-avidin based double monoclonal antibody ELISA method was used to detect the true insulin and proinsulin, and a risk factor score was set to evaluate individuals according to the number of risk factors.RESULTS: The median (quartile range) of true insulin and proinsulin was 4.91 mIu/L (3.01-7.09 mIu/L) and 3.49 pmol/L (2.14-5.68 pmol/L) respectively, and the true insulin level of female subjects was significantly higher than that of male subjects (P = 0.000), but the level of proinsulin displayed no significant difference between males and females (P = 0.566). The results of covariate ANOVA after age and sex were controlled showed that subjects with any of the risk factors had a significantly higher true insulin level (P = 0.002 for hypercholesterolemia, P = 0.021 for high low-density lipoprotein cholesterol, P = 0.003 for low high-density lipoprotein cholesterol, and P = 0.000 for other risk factors) and proinsulin level (P = 0.001 for low high-density lipoprotein cholesterol, and P = 0.000 for other risk factors)than those with no risk factors. Furthermore, subjects with higher risk factor scores had a higher true insulin and proinsulin level than those with lower risk factor scores (P = 0.000). The multiple linear regression models showed that true insulin and proinsulin were significantly related to cardiovascular risk factor scores respectively (P = 0.000).CONCLUSION: True insulin and proinsulin are significantly associated with the clustering of cardiovascular risk factors.AIM: To investigate the association between true insulin and proinsulin and clustering of cardiovascular risk factors. METHODS: Based on the random stratified sampling principles, 1196 Chinese people (533 males and 663 females, aged 35-59 years with an average age of 46.69 years) were recruited. Biotin-avidin based double monoclonal antibody ELISA method was used to detect the true insulin and proinsulin, and a risk factor score was set to evaluate individuals according to the number of risk factors. RESULTS: The median (quartile range) of true insulin and proinsulin was 4.91 mIu/L (3.01-7.09 mIu/L) and 3.49 pmol/L (2.14-5.68 pmol/L) respectively, and the true insulin level of female subjects was significantly higher than that of male subjects (P=0.000), but the level of proinsulin displayed no significant difference between males and females (P = 0.566). The results of covariate ANOVA after age and sex were controlled showed that subjects with any of the risk factors had a significantly higher true insulin level (P=0.002 for hypercholesterolemia, P=0.021 for high low-density lipoprotein cholesterol, P= 0.003 for low high-density lipoprotein cholesterol, and P=0.000 for other risk factors) and proinsulin level (P=0.001 for low high-density lipoprotein cholesterol, and P=0.000 for other risk factors) than those with no risk factors. Furthermore, subjects with higher risk factor scores had a higher true insulin and proinsulin level than those with lower risk factor scores (P=0.000). The multiple linear regression models showed that true insulin and proinsulin were significantly related to cardiovascular risk factor scores respectively (P=0.000). CONCLUSION: True insulin and proinsulin are significantly associated with the clustering of cardiovascular risk factors.

关 键 词：True insulin PROINSULIN Cardiovascular diseases 

分 类 号：R54[医药卫生—心血管疾病] R977[医药卫生—内科学]