Effect of Salvianolic Acid B on Mitochondrial Function of CerebralIschemia in Mice

The effects of salvianolic acid B (SalB) on the mitochondrial membrane potential (MMP), calcium, and apoptosis of neurons with cerebral ischemia in mice were investigated using an acute cerebral ischemia model established by ligating the bilateral common carotid arteries in mice. The MMP, the intracellular calcium concentration, and the apoptosis rate of cortical neurons were measured at 6 min, 12 min, 18 min, 24 min, and 30 min after cerebral ischemia by a flow cytometer. The experiments show that SalB increases the MMP and reduces the intracellular calcium and the apoptosis rate at different stages of the cerebral ischemia in mice. The results show that the protective mechanism of SalB on cerebral ischemia enhances the MMP and maintains intracellular calcium homeostasis.     

复方中药对内毒素引起的小鼠死亡率和多器官损伤的影响

目的：寻找有效的中药复方防治内毒素性多器官功能衰竭，降低内毒素血症小鼠的死亡率。方法：将四逆加人参汤、黄连解毒汤、参附青、参附青加丹参及清热解毒理气活血方药按常规方法煎制成药液(每毫升含1g生药)，以小鼠为实验对象，灌胃给药，3d后腹腔注射内毒素，观察小鼠生存率和肺、肝、肾、肠的病理变化。结果：与正常对照组(72h生存率为100％，n=20)比较，腹腔注射内毒素组小鼠72h生存率(42％，n=26)明显降低；四逆加人参汤、黄连解毒汤、参附青均不能提高内毒素血症小鼠生存率，而参附青加丹参反而降低内毒素血症小鼠生存率(72h生存率为8％，n=13)。清热解毒理气活血方药防治组小鼠72h生存率(68％，n=34)明显高于内毒索组(26％，n=38)，组织学观察显示肺、肝、肾、肠的病理变化明显减轻。结论：清热解毒理气活血方药能防治内毒素引起的多器官损伤，提高内毒素血症小鼠生存率。     

In Vivo Study of Brain Metabolism Using Nuclear Magnetic Resonance

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