RESUMEN
Objective To investigate the influence of electroacupuncturing Neiguan points on mitochondrial Ca2+release and cardiomyocyte apoptosis of diabetic cardiomyopathy in rats. Methods 30 Wistar rats were randomly divided into a control group, a model group and a treatment group(10 in each group). In the treatment group, after eight weeks electroacupuncture Neiguan point treating diabetic cardiomyopathy in rats, the myocardium was quickly removed,mitochondrial was extracted,dual-beam UV spectrophotometer was adopted to detecting Ca2+transportation by testing Ca2+indicator A Ⅲ absorbance, and Cardiomyocyte apoptosis was evaluated by terminal-deoxynucleotidyl transferase mediated deoxy-UTP nick end labeling (TUNEL). Results Ca2+ indicator A Ⅲ absorbance detection(0.051±0.014) and cardiomyocyte apoptosis(0.49±0.36)were more depressed in the treatment group than in the model group[(0.077±0.025), (0.53±0.04)], there were significantly different(P<0.05) Conclusion Effect of Electroacupuncturing Neiguan points decreased myocardial apoptosis index in rats with diabetic cardiomyopathy, which may be related to the reduction of mitochondrial Ca2+influx.
RESUMEN
Forty cases of type Ⅱ diabetes mellitus were treated by puncturing point Neiguan (PC 6), and the effect on their cardiac vegetative nerve functions were observed at 20 min, 40 min and 60 min after acupuncture respectively. The findings showed that all heart rate variables improved remarkably at the three time periods after acupuncture treatment, with significant differences (P＜0.01); but there was no significant difference in the curative effects among the three time periods.