The association between dyslipidaemia and obesity in Chinese men after adjustment for insulin resistance

被引:25
作者
Ko, GTC [1 ]
Chan, JCN [1 ]
Cockram, CS [1 ]
机构
[1] Chinese Univ Hong Kong, Prince Wales Hosp, Dept Med & Therapeut, Shatin, NT, Hong Kong
关键词
obesity; dyslipidaemia; insulin resistance; Chinese men;
D O I
10.1016/S0021-9150(98)00017-3
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Obesity is associated with dyslipidaemia characterised by increased fasting triglyceride and decreased high-density lipoprotein (HDL) concentrations. Causes for obesity-associated dyslipidaemia include insulin resistance, excessive caloric intake, increased free fatty acid production and disturbances in the counter-regulatory hormones. We examined the relationships between lipid parameters and obesity before and after adjustment of insulin resistance in 902 Hong Kong Chinese men. After adjustment for age, smoking and insulin resistance, increasing body mass index (BMI) and waist-to-hip ratio (WHR) remained closely associated with increased concentrations of triglyceride and apolipoprotein B (apo B), increased ratios between low-density lipoprotein (LDL) and HDL (LDL/HDL), and that between apo B and LDL (apo B/LDL), increased fasting and 2-h plasma glucose and insulin, as well as decreased concentrations of HDL, HDL2 and apolipoprotein A-I (apo A-I). On stepwise multiple regression analysis using age, BMI, WHR, insulin resistance and fasting plasma glucose as independent variables, BMI and WHR were the major determinants for the variance of triglyceride, HDL and its subfractions, LDL/HDL, apo B and apo B/LDL. Age was the most important predictor for total cholesterol and LDL. Insulin resistance only explained less than 1% of the variance in triglyceride and apo B. This was compared to a variance between 10 and 16% in these parameters as explained by BMI and/or WHR. In conclusion, obesity is associated with dyslipidaemia in Chinese men, characterised by increased plasma triglyceride, apo B, LDL/HDL, apo B/LDL, and decreased HDL, HDL2 and apo A-I concentrations. Obesity independent of insulin resistance, in particular central adiposity as reflected by increased WHR, was the most important independent variable for many of these lipid abnormalities. Our results emphasised the multifactorial linkage between obesity and dyslipidaemia. (C) 1998 Elsevier Science Ireland Ltd. All rights reserved.
引用
收藏
页码:153 / 161
页数:9
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