瑞易宁与格华止联合治疗2型糖尿病及其对自身胰岛β细胞功能及胰岛素抵抗的影响

目的 探讨瑞易宁与格华止联合治疗2型糖尿病，比较单用瑞易宁或格华止与联合使用2种药物对改善患者自身胰岛β细胞功能、降低胰岛素抵抗的效果。方法用Homa模型的胰岛素敏感指数（IAI）、胰岛素抵抗指数（IR）、胰岛素分泌指数（IS）及β细胞功能指数（HBCI）及标准馒头餐后患者的胰岛素和C-肽的分泌情况评估小剂量瑞易宁与格华止联合及单用治疗2型糖尿病患者18周前后胰岛素抵抗和胰岛素分泌的变化。结果2型糖尿病患者治疗前，以Homa模型的IAI、IR、IS、HBCl分析显示，均存在胰岛素抵抗和胰岛素分泌缺陷，经瑞易宁和格华止联用18周治疗后，IAI、IR、IS、及HBCI均有统计学意义（P〈0．05），服标准馒头餐后患者的胰岛素和C-肽的水平有一定程度的增高，与单用瑞易宁比较，其对IS和HBCI及标准馒头餐后胰岛素和C肽的改善更好，与单用格华止比较，其对IAI和IS的降低更为明显。结论瑞易宁与格华止联用不仅能显著降低空腹和餐后血糖，而儿能更有效地降低胰岛素抵抗，改善和保护患者自身β细胞功能。

The Changes of Insulin Resistance and β-cell Function in Patients with Type 2 Diabetes Mellitus after being Treated with the Combination of Glipizide-XL and Glucophage

Objective To investigate whether the combination of glipizide-XL with glucophage was more rational in insulin resistance and insulin secretion in patients with type 2 diabetes mellitus(T2DM).Methods The changes of insulin resistance and insulin secretion were evaluated from variations of IAI(insulin sensitivity index),IR(insulin resistance index.),IS(insulin secretion index)and HBCI(B-ce1l function index)in cases treated with glipigide-XL and glucophage or either for 18 weeks.Results IAI\IR standing for insulin resistance were higher significantly,and IS & HBCI standing for insulin secretion were lower significantly in patients with T2DM than in normal group(P<0.05).After being treated with glipizid-XL and glucophage or either for 18 weeks,IAI and IR were lowered more significantly(P<0.05),IS\HBCI were increased more significantly(P<0.05) while fasting plasma glucose(FPG)and postprandial plasma glucose(PPG)were lowered significantly(P<0.01)in patients with glipizide-XL and glucophage treatment than those with either.Conclusion The combination of glipizide-XL with glucophage can lower FPG and PPG,and reduce insulin resistance and improve B-cell function effectively.