目的观察姜黄素对大鼠心肌缺血再灌注损伤的保护作用。方法结扎大鼠冠状动脉左前降支,使心肌缺血60m in,再灌注30 m in,制成急性心肌缺血再灌注损伤模型,缺血前5 m in,舌下静脉推注姜黄素,观察在急性缺血和再灌注状态下血流动力学的变...目的观察姜黄素对大鼠心肌缺血再灌注损伤的保护作用。方法结扎大鼠冠状动脉左前降支,使心肌缺血60m in,再灌注30 m in,制成急性心肌缺血再灌注损伤模型,缺血前5 m in,舌下静脉推注姜黄素,观察在急性缺血和再灌注状态下血流动力学的变化。再灌注结束时测量心肌梗死面积。结果姜黄素(20,40 mg.kg-1)能剂量依赖地改善大鼠心肌缺血再灌注后的血流动力学变化,LVSP、±dp/dtm ax均较缺血再灌注对照组升高,LVEDP有所降低;同时可减少心肌梗死面积。结论姜黄素对心肌缺血再灌注损伤有保护作用。展开更多
The cerebral ischemia-reperfusion model was established using the suture occlusion method, and rats were intraperitoneally given 8 mL/kg Danhong injection once a day prior to model establishment Rat brain tissues were...The cerebral ischemia-reperfusion model was established using the suture occlusion method, and rats were intraperitoneally given 8 mL/kg Danhong injection once a day prior to model establishment Rat brain tissues were harvested at 6, 24, 48, 72 hours after reperfusion. Immunohistochemical staining showed that transforming growth factor-J31 expression increased, while Golgi matrix protein GM130 expression decreased after cerebral ischemia-reperfusion. Danhong injection was shown to significantly up-regulate the expression of transforming growth factor-131 and GM130, and expres- sion levels peaked at 7 days after reperfusion. At 7 days after cerebral ischemia-reperfusion, Golgi morphology was damaged in untreated rats, while Golgi morphology breakage was not observed after intervention with Danhong injection. These experimental findings indicate that Danhong injec- tion can up-regulate the expression of transforming growth factor-131 and GM130, and maintain Golgi stability, thus playing a neuroprotective role in rats after cerebral ischemia-reperfusion.展开更多
文摘目的观察姜黄素对大鼠心肌缺血再灌注损伤的保护作用。方法结扎大鼠冠状动脉左前降支,使心肌缺血60m in,再灌注30 m in,制成急性心肌缺血再灌注损伤模型,缺血前5 m in,舌下静脉推注姜黄素,观察在急性缺血和再灌注状态下血流动力学的变化。再灌注结束时测量心肌梗死面积。结果姜黄素(20,40 mg.kg-1)能剂量依赖地改善大鼠心肌缺血再灌注后的血流动力学变化,LVSP、±dp/dtm ax均较缺血再灌注对照组升高,LVEDP有所降低;同时可减少心肌梗死面积。结论姜黄素对心肌缺血再灌注损伤有保护作用。
基金supported by the National Natural Science Foundation of China,No.81171239/H0914
文摘The cerebral ischemia-reperfusion model was established using the suture occlusion method, and rats were intraperitoneally given 8 mL/kg Danhong injection once a day prior to model establishment Rat brain tissues were harvested at 6, 24, 48, 72 hours after reperfusion. Immunohistochemical staining showed that transforming growth factor-J31 expression increased, while Golgi matrix protein GM130 expression decreased after cerebral ischemia-reperfusion. Danhong injection was shown to significantly up-regulate the expression of transforming growth factor-131 and GM130, and expres- sion levels peaked at 7 days after reperfusion. At 7 days after cerebral ischemia-reperfusion, Golgi morphology was damaged in untreated rats, while Golgi morphology breakage was not observed after intervention with Danhong injection. These experimental findings indicate that Danhong injec- tion can up-regulate the expression of transforming growth factor-131 and GM130, and maintain Golgi stability, thus playing a neuroprotective role in rats after cerebral ischemia-reperfusion.