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-r...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.展开更多
文摘目的探讨舒尼替尼引起心肌细胞凋亡的作用机制。方法 H9C2细胞分别用舒尼替尼0.1,1和10μmol.L-1处理24,48,72 h,MTT法测定细胞存活率;流式细胞仪分别测定处理24 h细胞的凋亡、细胞内活性氧(ROS)、线粒体膜电位(ΔΨm)水平及胱天蛋白酶3活性。结果与同一时间点正常对照组相比,舒尼替尼1,10μmol.L-1处理24,48,72 h后,细胞存活率分别明显下降了22%和32%(24 h);41%和68%(48 h);62%和82%(72 h)(P<0.05)。与正常对照组相比,舒尼替尼1,10μmol.L-1作用24 h后,心肌细胞内ROS水平显著升高(4.41±0.76 vs 8.68±0.74,3.57±1.45)(P<0.05),线粒体膜电位下降(309±6 vs 244±28,174±2)(P<0.05),胱天蛋白酶3活性升高(0.96±0.13 vs 59.40±13.17,79.90±0.06)(P<0.05)及细胞凋亡率增加(〔6.03±0.40)%vs(21.05±5.55)%,(59.05±4.62)%〕(P<0.05)。结论舒尼替尼可通过诱导心肌细胞内ROS的产生,经线粒体内途径引起心肌细胞凋亡。
基金Supported by the Scientific and Technologic Items of Traditional Chinese Medicine Administration of Beijing City(No.2004 JingZhongZhongⅣ15)
文摘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.
