The model of acut hemorrhagic necrotizing pancreatitis(AHNP)was produced by retrograde injection of 3% sodium taurocholate into the biliopancreatic duct.48rats with AHNP were treated with Tanshin by subcutaneous injection(100mg/100g body weight,q12h,tanshin group),48 rats with AHNP without any treatment as control(control group).The resule showed that in the control group,there were severe hemorrhage,necroses and the lesions of microvascular,the activity of pancreatic enzyme in serum increased significantly(Plt;0.01)at 6h,after 12h the activities of those pancreatic enzymes decreased gradually, the lesions of microvascular and histology were becoming severer.In the Tanshin group,at 24h the lesions of microvascular and histology of the pancreas were modified significantly (Plt;0.05).These results suggest that the lesion of microcirculation play an important role in the later AHNP,and Tanshin has some effects on the AHNP by modifying the microcirculation of the pancreas.
ObjectiveTo investigate the therapeutic effects of different doses of tanshinone ⅡA microemulsion on radioactive lung injury. MethodsSeventy-two Wistar rats were randomly divided into a healthy control group,a model group,a liposome microemulsion treatment group,a tanshinone ⅡA microemulsion high-dose group,a tanshinone ⅡA microemulsion middle-dose group,and a tanshinone ⅡA microemulsion low-dose group.Radiation-induced lung injury model was established by irradiation of radiotherapy instrument.In addition to the control group,other groups received 6MV X radiation with one dosage of 22Gy.Four rats in each group were sacrificed on 7th,14th,and 28th day,respectively.Lung tissues were sampled to analyze the pathological changes by HE staining and the Smad7 mRNA expression by RT-PCR.The level of glutathione(GSH)in peripheral blood was determined by ultraviolet spectrophotometric method. ResultsIn the model group and four treatment groups,lung tissue biopsy showed the pathological changes gradually from pulmonary alveolitis to fibrosis.The level of Smad7 mRNA in lung tissue and GSH in peripheral blood were higher in the high-dose group,the middle-dose group and the low-dose group than those in the model group at all time points(P<0.05),and were highest in the high-dose group.There was no significant differences in the level of Smad7 mRNA in lung tissue and GSH in peripheral blood between the liposome microemulsion treatment group and the middle-dose group. ConclusionTanshinone ⅡA microemulsion has treatment effect on lung injury in a dose dependent manner.
Cardiovascular disease is one of the diseases with the highest morbidity and mortality in the world. Tanshinone ⅡA is one of the main active components of Salvia miltiorrhiza, which can significantly improve heart function. In this paper, the mechanisms of cardiovascular protection by tanshinone ⅡA are reviewed, including reducing myocardial apoptosis, inhibiting inflammatory reaction, improving atherosclerosis, and inhibiting myocardial fibrosis and antioxidant stress, and the related clinical research of tanshinone ⅡA is evaluated, so as to provide reference for the following research and clinical application of tanshinone ⅡA in cardiovascular system.