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1、湖南师范大学本科毕业论文考籍号:XXXXXXXXX姓名:XXX专业:医药学药学论文题目:动态观察柴胡皂苷a对实验性癫痫小鼠痫性发作的影响指导老师:XXX二〇一一年十二月十日【关键词】柴胡皂苷摘要:目的研究柴胡皂苷a(saikosaponina,SSa)对戊四氮(PTZ)诱导的小鼠痫性发作的影响,了解其药效特点。方法采用PTZ诱导小鼠急性痫性发作来制作癫痫模型,通过记录不同时间点小鼠痫性发作潜伏期和强直性惊厥率的变化,研究SSa抗小鼠PTZ致痫作用的动态特征。结果SSa腹腔注射30、60、90min组能显著延长阵发性痉挛潜伏期(P
2、0.05),其中SSa90min组作用最为显著(P001)。在60、90、120min组中,SSa腹腔注射也能明显延长强直性惊厥潜伏期(P0.05),其中尤以90min组作用显著(P001);SSa90min组对过渡时间延长作用显著(P0.05);SSa30min、60min组能减少PTZ致痫小鼠强直性惊厥发作例数(P005),且以SSa60min组作用最为显著。结论SSa具有对抗小鼠PTZ致痫作用;腹腔注射SSa对PTZ诱导小鼠的痫性发作在120min内以60min、90min药效作用较强。 关键词:实验性癫痫;柴胡皂苷a;
3、PTZ;小鼠 Abstract:ObjectiveTostudythedynamicvariationsoftheeffectofsaikosaponina(SSa)onepilepticmiceinducedbypentylenetetrazol(PTZ),andtounderstandtheeffectcharacteristicsofSSa.MethodWiththeepilepticmiceinducedbyPTZasanimalmodel.Inthedifferenttimepoint,thetentativesei
4、zureincubationperiodandthecaseoftetanicconvulsionwererecordedtostudythecharacteristicsoftheantiepilepticeffectofSSaonmouseinducedbyPTZ.ResultsInthegroupof30min,60minand90min,theincubationperiodofcloniccrampwassignificantlyprolongedbySSa(P0.05),andinthegroupof90min,th
5、eeffectwasremarkable(P0.01).Also,intraperitonealinjectionofSSacouldprolongtheincubationperiodoftetanicconvulsioninthegroupof60min,90minand120min(P0.05).Theeffectwasespeciallyevidentinthegroupof90min(P0.01).Inthegroupof90min,thetransitiontimewasremarkablyprolongedbySS
6、a(P0.05).InthegroupofSSa30minandSSa60min,SSacouldreducethetetanicconvulsionofepilepticmiceintroducedbyPTZ(P0.05),andtheeffectismoresignificantinthegroupof60minthanthatinthegroupof30min.Inthegroupof30minand60min,SSacouldprotecttheepilepticmiceintroducedbyPTZfromtetani
7、cconvulsionmoresignificantlythanthoseinthegroupof90minand120min.ConclusionsSSacaninhibittheepilepticmiceinducedbyPTZ,SSacanprotectthemousefromtetanicconvulsion,andin2hours,theeffectwasmoreremarkableat60thmin,90thminthanothers. Keywords:epilepsy;Saikosaponina;PTZ;mic
8、e柴胡皂苷(saikosaponin)为中药柴胡的主要成分之一,其单体成分之一的柴胡皂苷a(SSa)有降血脂、抗渗出、抗肉芽肿和保护肝细胞等作用[1],对于慢性肾病的治疗也有较好疗效[2,3],但目前尚没有SSa抗癫痫作用的报道。不过已有不少证据表明柴胡及柴胡总