DPP-4抑制剂对胰岛素治疗2型糖尿病患者血糖波动的影响

目的 探讨西格列汀对门冬胰岛素30控制不佳的2型糖尿病(T2DM)患者血糖波动性的影响.方法 选择广东医科大学附属中山医院2014年1月1日至2014年12月31日门冬胰岛素30控制不佳的2型糖尿病患者90例,随机分为三组:单纯持续皮下胰岛素注射治疗组(CSII组),阿卡波糖联合CSII组(CSII+ Aca组),西格列汀联合CSII组(CSII+ Sig组).每组各30例,强化治疗2周,最后3d行72 h动态血糖监测(CGMS),观察24 h内平均血糖(24 h MBG)、最大血糖波动幅度(LAGE)、1日内平均血糖波动幅度(MAGE)、餐后血糖尖峰值(PGS)、餐后血糖达峰时间(△t)、餐后血糖漂移幅度(PPGE),餐后血糖漂移时间(T总).治疗结束时比较胰岛素用量之差(△胰岛素)、低血糖发生率、血糖达标率、血糖谱.结果 治疗2周后,CSII+ Sig组和CSII+ Aca组的日内血糖波动指标(24 h MBG、LAGE及MAGE)及餐后血糖波动指标(PGS≧△t、PPGE、T总)均显著低于CSII组(P＜0.05);而CSII+ Sig组与CSII+ Aca组之间血糖波动指标的差异无统计学意义(P＞0.05).治疗后比较3组△胰岛素、低血糖发生率、血糖达标率,CSII+ Sig组均偏低(P＜0.05).结论 短期CSII治疗联合应用西格列汀,其降糖效果不低于联合应用阿卡波糖,能平稳降糖,减轻该类患者全天血糖波动,有效减少△胰岛素,低血糖发生率更低.

Effect of DPP-4 inhibitor on glucose fluctuation in patients with type 2 diabetes mellitus treated by insulin

Objective To probe into the effect of sitagliptin on blood glucose fluctuation of the patients with type 2 diabetes mellitus(T2DM) and poor control by insulin aspart 30.Methods Ninety cases of T2DM and poor control by insulin aspart 30 in affiliated Zhongshan hospital from January 1,2014 to December 31,2014 were selected and randomly divided into three groups:simply continuous subcutaneous insulin injection(CSII),acarbose combined CSII group(CSII + Aca) and sitagliptincombined CSII group (CSII + Sig),30 cases in each group.Three groups received the intensive treatment for 2 weeks,and72-h continuous glucose monitoring was performed on last 3 d.The 24 h mean blood glucose(24 hMBG),largest amplitude of glycemic fluctuation(LAGE),mean amplitude of glycemic excursion(MAGE) within 1 d,postprandial blood glucose spike(PGS),postprandial glucose peak time(△t),postprandial glucose excursion(PPGE) and total T were observed within 24 h.The difference of insulin dose(△ insulin),hypoglycemia incidence,glucose-target rate,blood glucose profiles were compared at the end of treatment.Results After two-week treatment,intraday blood glucose variation indicators(24 hMBG,LAGE and MAGE) and postprandial blood glucose variation indicators (PGS,△t,PPGE and total T) in the CSII+Sig and CSII+-Aca groups were significantly lower than those in the CSII group(P＜ 0.05),while the differences in blood glucose variation indicators between the CSII+Sig group and CSII+-Aca group were not statistical significant(P＞ 0.05).In the comparison after treatment,△ insulin,hypoglycemia incidence and glucose-target rate in the CSI + Sig group were lower(P＜0.05).Conclusion The combined application of short-term CSII and sitagliptin will achieve a better effect than the combination with acarbose,can smoothly and steadily reduces the blood glucose level,relieves the whole day glucose fluctuations,effectively reduces △ insulin,and has lower hypoglycemia occurrence rate.