RESUMO
Objective: To study the protective effect and mechanism of compound Danshen dropping pills on the heart of rats with type 2 diabetic cardiomyopathy. Method: Seventy-five male SD rats were randomly divided into blank group (15 rats) and model group (60 rats). The model group was fed with high-sugar and high-fat diet, high-sugar and high-fat milk and sucrose water. Six weeks later, rats with foodborne obesity (body mass ≥ the mean body mass of blank control group + 2 times standard deviation) were selected and intraperitoneally injected with 1% streptozotocin (STZ)28 mg·kg-1. After 12 weeks, rats with fasting blood glucose ≥ 11.1 mmol·L-1 and polydipsia, diuresis, polyphagia and weight loss were randomly divided into model group, compound Danshen dropping pills group (0.5 g·kg-1) and metformin group (0.5 g·kg-1) and intervened for 12 weeks. At the end of the experiment, echocardiography was used to evaluate cardiac function. Blood samples were taken to determine the corresponding biochemical indicators of rats. Histopathological changes of myocardium were observed by hematoxylin-eosin (HE) and Masson staining. The ultrastructure of myocardium was observed under electron microscope. Western blot was used to detect the expressions of vascular endothelial growth factor (VEGF), transforming growth factor-beta 1 (TGF-β1) and type Ⅰ collagen (Collagen Ⅰ). Real-time fluorescence quantitative analysis (Real-time PCR) was used to detect the expression of miRNA-200b. Result: Compared with the blank group, the heart weight index (HMI), fasting blood glucose (FBG), glycosylated hemoglobin (HbA1c), fasting insulin (FINS), total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterin(LDL-C) levels in the model group were significantly increased (PPPPPβ1 and Collagen I increased (PPPPPPβ1 and Collagen I was decreased (PPConclusion: Compound Danshen dropping pills may play a protective role in the heart of type 2 diabetic cardiomyopathy rats by lowering lipid, up-regulating the expression of miR-200b and inhibiting the expression levels of VEGF, TGF-β1 and Collagen I.
RESUMO
The clinical therapeutic effect of acupoint catgut-embedding for simple obesity was systemically analyzed to provide reference and assistance for its clinical treatment and research. By searching in the CBM, CNKI, VIP, Wanfang, Pubmed, Springer and Medline databases, clinical randomized controlled trials (RCT) of acupoint catgut-embedding for simple obesity published from Jan, 2009 to July, 2013 were collected while Revman 5. 2 software was applied to perform the Meta-analysis. Totally 19 articles were acquired with 1 658 cases involved. The effective rate was selected as primary outcome measure in 19 articles. The Meta-analysis was performed among homogeneous researches. The results indicated that compared with other therapies, pooled OR of acupoint catgut-embedding was 2.45 with 95% CI [1.81, 3.32]; in the test for overall effect, Z = 5.81, implying the efficacy difference of two therapies was significant in the treatment of simple obesity (P < 0.01). In subgroups analysis, in the event of treatment session with more than 3 months, compared with other therapies, pooled OR of acupoint catgut-embedding was 2.61 with 95% CI [1.53, 4.46]; in test for overall effect, Z = 3.51, implying the efficacy difference of two therapies was significant in the treatment of simple obesity (P < 0.01); in the event of treatment session with less than 3 months, compared with other therapies, pooled OR of acupoint catgut-embedding was 2.38 with 95% CI [1.65, 3.44]; in test for overall effect, Z = 4.46, implying in the treatment of simple obesity the efficacy difference of two therapies was significant (P < 0.01). Compared with electroacupuncture, OR of acupoint catgut-embedding was 1.79, 95% CI [1.08, 2.95] (P = 0.02). Compared with acupuncture, OR of acupoint catgut-embedding was 1.89, 95% CI [1.16, 3.09] (P = 0.01), which explained that compared with electroacupuncture and acupuncture, the efficacy of acupoint catgut-embedding was significantly different. In a word, the clinical efficacy of acupoint catgut-embedding is superior to other therapies in the treatment of simple obesity.