中国寄生虫学与寄生虫病杂志 ›› 2007, Vol. 25 ›› Issue (1): 9-44.

• 实验研究 • 上一篇    下一篇

双氢青蒿素对体外培养阴道毛滴虫作用的电镜观察

汤自豪1;周小鸥1;高兴政2   

  1. 1 九江学院医学院病原生物学教研室, 九江 332000;2 北京大学医学部寄生虫学教研室, 北京 100083
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-02-28 发布日期:2007-02-28
  • 通讯作者: 高兴政

Effect of Dihydroartemisinin on the Ultrastructure of Trichomonas vaginalis Trophozoites in vitro

TANG Zi-hao1;ZHOU Xiao-ou1;GAO Xing-zheng2   

  1. 1 Department of Pathogenic Biology, Jiujiang University Medical College, Jiujiang 332000, China; 2 Department of Parasitology, School of Basic Medical Sciences, Peking University, Beijing 100083, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-02-28 Published:2007-02-28
  • Contact: GAO Xing-zheng2

摘要: 目的 观察双氢青蒿素(DHA)对阴道毛滴虫超微结构的影响。 方法 在2.5×106个/ml滴虫培养液中加入双氢青蒿素1 mg/ml。 37 ℃ 培养3 和3.5 h, 进行扫描电镜观察,培养2.5和4 h进行透射电镜观察。 结果 双氢青蒿素作用滴虫后,虫体细胞膜受损明显,表面皱褶加深、表膜凹陷,并出现裂隙。细胞核膜破损,细胞核和细胞质均出现裂隙。内质网呈囊状肿胀,氢化酶体受损、变形。细胞质从细胞膜破裂处溢出。 细胞膜剥脱后细胞核、氢化酶体和盾等结构裸露。最后虫体变性、坏死。 结论 双氢青蒿素能破坏阴道毛滴虫膜系结构并导致虫体裂解死亡。

关键词: 阴道毛滴虫, 双氢青蒿素, 超微结构, 扫描电镜, 透射电镜

Abstract:  Objective To observe the effect of dihydroartemisinin(DHA) on the ultrastructure of Trichomonas vaginalis cultured in vitro. Methods The trophozoites of T.vaginalis were cultivated with liver extract solution medium containing 1 mg/ml dihydroartemisinin, and were then observed by scanning and transmission electron microscopes after the treatment for 2.5-4.0 h. Results The cell membranes of the trophozoites treated with DHA were damaged considerably. The surface of T.vaginalis showed deepening folds, hollow, and cracks. The nuclear membrane appeared fractures. There were a few of crevices in the nucleus and cytoplasm. Disordered and dilated endoplasmic reticulum, injured and deformed hydrogenosomes were found. Cytoplasm of the damaged parasites spilled over from torn place. After the cell membrane was peeled off, the nuclei, hydrogenosomes and pelta were exposed, which finally resulted in the death of the denatured parasites. Conclusion Dihydroartemisinin can destroy membrane structure and organelles of Trichomonas vaginalis trophozoites, which leads to decomposition and necrosis of the parasites.

Key words: Trichomonas vaginalis, Dihydroartemisinin, Ultrastructure, Scanning electron microscope, Transmission electron microscope