Alteration of fatty acid components and insulin resistance of red cell membrane in diabetic patients with coronary heart disease
- VernacularTitle:糖尿病合并冠心病患者红细胞膜脂肪酸成分改变与胰岛素抵抗
- Author:
Ling LI
;
Qing WAN
- Publication Type:Journal Article
- From:
Basic & Clinical Medicine
2001;21(2):166-168
- CountryChina
- Language:Chinese
-
Abstract:
The fatty acid components and microviscosity of erythrocyte membrane in 39 type 2 diabetic patients with and without coronary heart disease(CHD) were examined by high-performance liquid chromatography (HPLC) and fluorescence polarization teachnique,and their relationship with insulin sensitivity index (ISI) and CHD were analyzed.The results showed that contents and composition of erythrocyte membrane arachidonic acid (AA,C20:4)were significantly lower in type 2 diabetic patients with or without CHD than those in control subjects (P＜0.01 and P＜0.05).The total fatty acids contents were also significantly lower in patients with CHD than those in normal subjects (P＜0.05).In patients with or without CHD,erythrocyte membrane microviscosity was significantly increased as compared with the controls (P＜0.01 and P＜0.05),and it was higher in diabetics with CHD than those without CHD (P＜0.05).AA contents of erythrocyte membrane was negatively correlated with microviscosity and positively correlated with insulin sensitivity index (ISI),while the microviscosities were negatively correlated with ISI in diabetics.AA,linoleic acid contents,microviscosity of erythrocyte membrane and ISI were all correlated with the incidence of CHD in diabetics.In diabetic patients,the fatty acid metabolic abnormality could cause the alterations of functions,structures and fluidity of erythrocyte membrane,thus may contributing to increased IRS and might be related to the incidence of CHD.
