RESUMO
Objective: To study the effects of modified Buzhong Yiqitang on cardiac function and fat acid binding protein3 (FABP3)and peroxisome proliferator-activated receptor gamma(PPARγ) protein of cardiac myocytes in type 2 diabetic mellitus (T2DM) rats, and to explore the mechanism of this prescription to protect T2DM cardiomyopathy. Method: After 6 weeks of high-glucose and high-fat diet, streptozotocin (STZ) was intraperitoneally injected (50 mg·kg-1) to establish a diabetic rat model, and then randomly divided into normal group, model group, modified Buzhong Yiqitang group (21 g·kg-1) and metformin hydrochloride group (2 g·kg-1). After continuous administration for 6 weeks, echocardiography was used to detect the cardiac structure and function of the rats in each group. Combined with the measured blood glucose level, it was judged that the rat model building of diabetic cardiomyopathy was successful.Rat heart tissue was dissected, and rat myocardial morphology was observed by hematoxylin-eosin(HE)staining. Western blot was used to detect the expression levels of FABP3 and PPARγ proteins in rat myocardium. Result: Compared with normal group, levels of blood sugar, total triglyceride(TC), triglyceride(TG),insulin (INS) in model group rats increased significantly (PPγ protein expression levels were significantly lower (PPPγ protein expression was significantly increased (PConclusion: Modified Buzhong Yiqitang can improve glucose and lipid metabolism disorder in diabetic cardiomyopathy rats, improve cardiac function in diabetic cardiomyopathy rats, increase the expression of PPARγ in cardiomyocytes, and reduce the expression of FABP3 protein.
RESUMO
@#Objective To compare the effect of impulse electroacupuncture (impulse-EA) and music electroacupuncture (music-EA) for Tongdu Qishen on spatial learning and memory, and expression of cytokine in the hippocampus of APP/PS1 mice. Methods A total of 32 APP/PS1 double transgenic male mice were randomly divided into model group (n=8), drug group (n=8), impulse-EA group (n=8) and music-EA group (n=8), the same background and age male C57BL/6 mice were observed as normal group (n=8). The impulse-EA group and music-EA group accepted EA at Baihui (GV20) and Yintang (GV29), connected with their own electroacupuncture stimulators, for 20 minuts, then, they were pricked Renzhong (GV26) for a while. The drug group accepted donepezil hydrochloride 0.92 mg/kg intra-gastrically. The normal group, model group and drug group were grabbed and bounded in the same way. After 15 days of treatment, they were assessed with Morris water maze. The expression of high mobility group box pro-tein-1 (HMGB1) and interleukin-10 (IL-10) in hippocampus were measured with immunohistochemistry and Western blotting. Results The escape latency shortened inEA groups compared with that of the model group since the fourth day of Morris water maze training (P<0.05), and it was the least in the music-EA group; and the ratio of swimming across the target quadrant increased (P<0.05), but there was no significant difference between EA groups (P>0.05). The ex-pression of HMGB1 decreased (P<0.05) and the expression of IL-10 increased (P<0.05) in EA groups com-pared with that of the model group, and HMGB1 decreased more and IL-10 increased more in the music-EA group than in the impulse-EA group (P<0.05), according to the measurement in immunohistochemistry, not in Western blotting. Conclusion Both impulse-EA and music-EA based on Tongdu Qishen can promote the recovery of the learning and memory in APP/PS1 mice, and music-EA may do more effectively in inhibition of pro-inflammatory factors and promotion of the anti-inflammatory factors.