Mechanism of Baihu Renshen decoction on T2DM rats based on mitochondrial autophagy mediated by PINK1/Parkin

Background:This study will be aimed at investigating the effects of Baihu Renshen decoction(BHRS)on type 2 diabetes rats and on macromolecular enzyme 1(PINK1)/E3 ubiquitin protein ligase(Parkin)pathway.Methods:The experiment was divided into four groups:control group,model group,metformin group and BHRS low-dose group and high-dose group.Forty male rats were selected as samples and randomly assigned to at least one test group.Finally,there are 18 rats in each group.Except for the control group,the rats within the different teams got a high-fat diet associate in nursing an intraperitoneal injection of streptozotocin to make a type 2 diabetes mellitus(T2DM)rat model.The organic chemistry and inflammatory indexes of rats in every cluster were analyzed and compared once four weeks of intragastric administration of comparable reagents to review the therapeutic impact of BHRS on T2DM.In addition,we determined the pathological changes of ductal gland tissue of T2DM rats after treatment,and compared the expression of mitochondrial phagocytosis related proteins in ductal gland tissue of rats in each group.Results:FBG,LDL-C,TC,TG,MDA,IL-1,IL-6,TNF-,and mitophagy-related proteins COXIV,P62,VDAC1,and TOM20 were elevated in the model group compared to the control group,while HDL-C,SOD,GSH-Px,and mitophagy-related proteins PINK1,Parkin,and LC3II/I were decreased(P<0.05 or P<0.01).The expressions of FBG,TC,TG,LDL-C,MDA,IL-1,IL-6,TNF-,and mitophagy-related proteins COXIV,P62,VDAC1,and TOM20 were lowered in the BHRS group,while the expressions of HOMA-,HDL-C,SOD,GSH-Px,and mitophagy-related proteins PINK1,Parkin,and LC3II/I were(P<0.05 or P<0.01).After therapy with BHRS,hematoxylin-eosin staining showed that the intensity of pancreatic acinar staining increased,and islet cells became clear boundaries that were,regularly arranged,and with reduced vacuoles reduced.Conclusion:BHRS has a clear therapeutic effect on T2DM,which may be achieved by regulating mitochondrial autophagy through the PINK1/Parkin pathway.

Protective Effect of Renshen Yangrong Decoction(人参养荣汤) on Bone Marrow against Radiation Injury in Mouse

Objective：To explore the effect of Renshen Yangrong Decoction（人参养荣汤,RYD） in protecting bone marrow from radiation injury.Methods：One hundred and eighty Kuming mice were subjected to the three tests for anti-radiation injury effect evaluation,i.e.the test of peripheral white blood cell（WBC） count, the test of bone marrow nucleated cell count,and the bone marrow micronucleus test,using 60 mice for each test.The mice in each test were divided into 6 groups：the blank control group,the model control group,the positive control group treated by Shiyiwei Shenqi Tablet（十一味参芪片,1.0 g/kg）,and three RYD groups treated with high（42.0 g/kg）,moderate（21.0 g/kg）,and low（10.5 g/kg） doses of crude drugs of RYD,with 10 mice in each group.The treatment was given by gastrogavage perfusion continuously for 7-14 days before mice received ^（60）Co-γray radiation and continued until the end of the experiment.The body weights of the mice were monitored,the changes in peripheral WBC and bone marrow nucleated cells were counted,and the variation in bone marrow micronucleated cells was observed on the respective appointed days.Results：A significant decrease in body weight,peripheral WBC count,and bone marrow nucleated cell count,as well as marked changes in bone marrow micronucleated cells were observed in the mice after radiation,indicating that the radiation injury model was successfully established.As compared with the model control group,the decrease in body weight,peripheral WBC count,and bone marrow nucleated cell count,as well as the increase in bone marrow micronucleus cell count in the high dosage RYD treated group were obviously inhibited or lessened （P0.05 or P0.01）.Conclusion：RYD showed obvious protective effect in mice with bone marrow injury induced by radiation.

Anti-fatigue Effect of Renshen Yangrong Decoction(人参养荣汤) in Mice

Objective： To explore the anti-fatigue effect of Renshen Yangrong Decoction （人参养荣汤 RYD） in mice. Methods： One hundred Kunming mice were randomly divided into 5 groups with 20 mice in each group. The negative control group was treated with distilled water, the positive control group was treated with Shiyiwei Shenqi Tablet （十一味参芪片 1.0 g/kg）, the high-, medium- and low-dose RYD groups were treated with 42.0, 21.0 and 10.5 g/kg of RYD daily, respectively, by gastric infusion. At the end of the 7-day treatment, loaded swimming time, organ wet weight and coefficient, serum glucose, urea nitrogen, and hepatic glycogen levels were determined. The outcomes were compared among groups. Results： As compared with the negative control group, the loaded swimming time was significantly increased in the positive control group, specifically the medium- and high-dose RYD groups （P〈0.01）. In addition, the wet weights and coefficients of the spleen and thymus, and the serum glucose and hepatic glycogen contents were increased, whereas serum urea nitrogen level was significantly decreased in the positive control group and the high dose RYD group （P〈0.05 or P=〈0.01）. Conclusion： RYD showed an anti-fatigue effect in mice.