Antiparasitic properties of homoallylamines and related compounds

A study of some antiparasitic properties of several homoallylamines and related tetrahydroquinolines and quinolines, previously described, was carried out using in vitro activity assays against the epimastigote form of Trypanosoma cruzi and against Trichomonas vaginalis. Unspecific cytotoxicity against murine macrophages was also studied. Although the antichagasic and trichomonacidal activities are not comparable to those of the standard drugs, nifurtimox and metronidazole, some of the compounds exhibit an interesting specific antiparasitic activity.     

白头翁体外抗阴道毛滴虫的效果及扫描电镜观察

目的　探讨白头翁杀阴道毛滴虫作用机制。　方法　利用不同浓度白头翁水提液 (PWE)进行体外抗滴虫实验 ,并用光镜及扫描电镜观察白头翁作用后滴虫的形态变化。　结果　随着药物作用时间的延长和药物浓度的增加 ,滴虫死亡率增高。 5mg/ml药物作用 8h ,滴虫死亡率达到 10 0 %。白头翁水提液 2 4h杀灭滴虫的最低有效浓度为 1.2 5mg/ml。药物作用后虫体内空泡增多 ,颗粒堆积 ,虫体裂解。扫描电镜显示 ,虫体表面皱褶加深 ,表膜凹陷、剥脱、破裂 ,鞭毛和波动膜受损。　结论　白头翁可直接作用于虫体表膜 ,具有较强的抗滴虫作用。     

妇雅净浸膏体外抑菌杀虫作用的实验研究

目的:研究妇雅净浸膏的体外抑菌杀虫作用。方法:通过妇雅净醇提浸膏和水提浸膏体外抑菌杀虫试验,考察妇雅净浸膏的抑菌杀虫效果。结果:妇雅净醇提浸膏和水提浸膏均能显著抑制大肠杆菌、金黄色葡萄球菌敏感株、铜绿假单胞菌、白色念球菌,其中醇提浸膏最低抑制浓度(MIC)在8.44~75.0mg/ml之间;水提浸膏最低抑制浓度在75.0~187.5mg/ml之间。在本实验浓度范围内,妇雅净醇提浸膏有显著的杀虫效果,而水提浸膏则无此作用。结论:妇雅净醇提浸膏有较好的抑菌杀虫效果。其抑菌作用要强于同浓度的水提浸膏。