ABSTRACT
Objective To study the change of the eonnxin43 expression in the heart of diabetic mellitus rats. Methods STZ-in-dueed diabetic mellitus in rats were developed. The expression of connexin43 in the heart was detected by immunohistochemistry and image analysis, and the heart function was observed by electrophysiolograph and echocardiogram. Results During the course of diabetic mellitus, the expression of connexin43 in the heart of diabetic rats decreased respectively in the 12th week and 24th week (P<0.01). The values of dp/dtmax and + dp/dtmax in group DM in the 12th week and 24th week were lower than that in normal control group respectively (P<0.01), and the LVEF were also decreased (12w P<0.05,24w P<0.01). The analysis of correlation showed that the expression of con-nexin43 in heart were positively correlated with heart function (P<0.05) . Conclusion The expression of Connexin43 evidently de-creased in the hearts of diabetic rats and it is positively correlated with the heart function.
ABSTRACT
Objective To compare the effects of two different approaches of insulin delivery on hyperglycemia.Methods 26 poorly controlled diabetic patients were studied by two methods of intensive insulin delivery.⑴Continuous subcutaneous insulin infusion(CSⅡ) group(n=6),including 4 cases of type 1 DM,2cases of type 2 DM;⑵Multiple subcutaneous insulin injection(MSⅡ) group(n=20),including 3 cases of type 2 DM,17 cases of type 2 DM.The target BGs for both groups were premeal and bedtime BG3≥3 6mmol/L ≤7 2mmol/L for at least 3 days.Results Both groups had reached the target BGs,the CSⅡ groups more close to normal level.The average durations of treatment were significantly different;CSⅡ(8 3?1 3)d,MSⅡ(13 6?2 4)d for the two groups (t=5 136,P0 05).The hypoglycemia incidence in CSⅡ was(0 67?1 3)time/case,in MSⅡ(2 15?1 4)time/case(t=2 305,P