迷迭香提取物对小鼠脑缺血的保护作用及急性毒性评价

目的 观察迷迭香氯仿提取物对小鼠脑缺血的保护作用,并进行急性毒性评价.方法 采用小鼠急性断头脑缺血缺氧、小鼠体内血栓形成、氯仿诱导小鼠心律失常模型及小鼠凝血试验评价对小鼠脑缺血的保护作用;采用小鼠空腹灌胃给药的方法,对迷迭香氯仿提取物进行急性毒性评价.结果 迷迭香氯仿提取物能抑制胶原-肾上腺素诱导的小鼠体内血栓形成,明显延长急性断头脑缺血小鼠的张口喘息时间和增加张口喘息次数(P<0.05或P<0.01),降低小鼠室性心律失常的发生率.氯仿提取物组给药第2天死亡1只雌鼠,未观察到其他毒性反应.结论 迷迭香氯仿提取物对小鼠脑缺血缺氧具有明显保护作用.

Protective Effects of Rosemary's Extract on Cerebral Ischemia in Mice and Acute Toxicity Evaluation

Objective To evaluate the protective effects of Rosemary's chloroform extract on cerebral ischemia in mice and acute toxicity.Methods The protective of rosemary's chloroform extract on cerebral ischemia was observed and compared by the mice models of cerebral anoxia and ischemia,thrombus formation in vivo, and chloroform induced arrhythmias.Rosemary's Chloroform Extract was given orally to mice to evaluate acute toxicity.Results Rosemary's chloroform extract had different degrees of inhibition of collagen-the adrenaline induced thrombus formation,and prolonged acute ischemic mice brains off mouth breathing time and increase the number of mouth breathing(P <0.05 or P <0.01); Chloroform extract significantly reduced the incidence of chloroform induced ventricular arrhythmias.Acute toxicity results suggested that a female rat died in the next day of chloroform extract group,no additional toxicity was observed.Conclusion Rosemary's chloroform extract has significant protective effect on cerebral ischemia and hypoxia in mice.