中国寄生虫学与寄生虫病杂志 ›› 2002, Vol. 20 ›› Issue (5): 15-309.

• 实验报道 • 上一篇    下一篇

马来丝虫长爪沙鼠动物模型保种衰退期的观察

陈韶红;孙德建;施恒华;袁以真
  

  1. 中国疾病预防控制中心寄生虫病预防控制所;中国疾病预防控制中心寄生虫病预防控制所;中国疾病预防控制中心寄生虫病预防控制所;中国疾病预防控制中心寄生虫病预防控制所 世界卫生组织疟疾、血吸虫病和丝虫合作中心;上海200025;世界卫生组织疟疾、血吸虫病和丝虫合作中心;上海200025;世界卫生组织疟疾、血吸虫病和丝虫合作中心;上海200025;世界卫生组织疟疾、血吸虫病和丝虫合作中心;上海200025
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2002-10-30 发布日期:2002-10-30

Observation on Decline Phase of Maintenance of Brugia malayiMeriones unguiculatus Model

CHEN Shao hong;SUN De jian;SHI Heng hua;YUAN Yi zhen

  

  1. Institute of Parasitic Diseases;Chinese Center for Disease Control and Prevention *;Shanghai 200025
  • Received:1900-01-01 Revised:1900-01-01 Online:2002-10-30 Published:2002-10-30

摘要:   目的 观察马来丝虫经长爪沙鼠传代的衰退情况。 方法 用马来丝虫微丝蚴感染中华按蚊 ,收集感染期幼虫 (L3) ,通过腹腔接种感染长爪沙鼠 ,连续观察 3 3代长爪沙鼠体内马来丝虫微丝蚴的发育情况。 结果 从 1974年建立的马来丝虫长爪沙鼠动物模型至今 ,通过 3 3代传代 ,发现随着转种代数增加 ,从第 2 8代起长瓜沙鼠的阳性率逐年下降 ,由 2 8代的 80 %下降至 3 2代的 16% ,到 3 3代时阳性率降为 0。 结论 经过较长期的传代 ,马来丝虫幼虫难以在长爪沙鼠体内发育繁殖。

关键词: 马来丝虫, 长爪沙鼠, 动物模型

Abstract:  Objective To observe the degeneration of Brugia malayi in Meriones unguiculatus model. Methods Microfilaria of Brugia malayi derived from Meriones unguiculatus was used to infect Anopheles sinensis . Infective stage larvae (L 3) from mosquito vector were collected and inoculated into abdomen of Meriones unguiculatus. Successive 33 generations of the parasite in the rodent model have been observed. Results Since 1974 when the animal model was established, the parasite has lasted for 33 generations, the positive rate of Meriones unguiculatus with microfilaria gradually reduced from 80% of the 28th generation to 16% of the 32nd generation and finally to 0 at the 33rd generation. Conclusion It became difficult for the larvae of Brugia malayi to develop and/or reproduce in the animal model after multiple inoculations for generations.

Key words: Brugia malayi, Meriones unguiculatus, animal model