2型糖尿病并肥胖患者血清白细胞介素-18与淋巴细胞亚群的变化

目的观察2型糖尿病（T2DM）并肥胖患者血清自细胞介素-18（IL-18）水平与淋巴细胞亚群的变化。方法64例T2DM患者按是否伴有肥胖分为糖尿病并肥胖患者31例（A组）、糖尿病不伴有肥胖33例（B组），选择同期健康体检者23例（C组），观察各组血糖（FPG）、胰岛素（FPI）、总胆固醇（TC）、甘油三酯（TG）、IL-18和外周血中T淋巴细胞亚群CD3^＋及CD4^＋、CD8^＋的变化及胰岛素敏感指数（ISI）不同。结果与C组比较，A组、B组的TC、TG、FPG、FPI水平均明显增高（P〈0．05、P〈0．01），ISI则显著降低（P〈0．01）；与B组比较，A组的血脂显著增高（P〈0．05）；与C组比较，A组、B组的CD3^＋、CD8^＋亚群细胞数、IL-18水平均显著增高（P〈0．05，P〈0．01），CD4^＋、CD4^＋／CD8^＋比值显著降低（P〈0．05）；与B组比较，A组CD3^＋、CD8^＋亚群细胞数均显著增高（P〈0．05），CD54^＋、CD4^＋／CD8^＋比值显著降低（P〈0．05）。结论T2DM患者胰岛素抵抗、脂代谢紊乱、免疫功能紊乱与肥胖有关。

The variance of serum IL-18 level and lymphocyte subpopulations in the patients with obese diabetic

Objective To observe on the variance of serum IL-18 level and lymphocyte subpopulations in the patients with obese diabetic(T2DM).Methods The diabetic obese group contained 31 cases,the non-diabetic obese group contained 33 cases,healthy normal body weight group contained 23 cases,the blood glucose(FPG),insulin (FPI),blood total cholesterol(TC),triglyceride(TG),IL-18 and the cell population of lymphocyte subpopulations CD3+and CD4+、CD8+ in peripheral blood were determined,the insulin sensitivity index were calcnlated.Results Compared with the healthy normal body weight group,the blood fat,FPG,FPI,IL-18 of T2DM patients significantly increased,there were significant statistical difference(P ＜ 0.05 or P ＜ 0.01).The ISI significantly decreased(P ＜ 0.01).Compared with the non-diabetic obese group,the blood fat and IL-18 of T2DM patients significantly increased (P＜0.05).Compared with the diabetic obese group,the subpopulations cell population of CD3+、CD4+、CD8+ in the non-diabetic obese group significantly decreased,the ratio of CD4+/CD8+ significantly increased,there were significant statistical difference(P＜0.05 or P＜0.01)in the two groups comparison.Compared with the non-diabetic obese CD4+/CD8+ significantly increased(P＜0.05).Conclusion T2DM patients should prevent the hyperinsulinemia,control blood sugar,reduce insulin resistance,sustain normal lipid metabolism,boost immune function.