中国寄生虫学与寄生虫病杂志 ›› 1997, Vol. 15 ›› Issue (6): 353-355.

• 论著 • 上一篇    下一篇

夹心dot-ELISA检测钉螺体内血吸虫抗原的研究

沈大康1; 娄文娴1; 郑志国2   

  1. 上海第二医科大学寄生虫学教研室; 浙江省医学科学院寄生虫病研究所
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1997-12-28 发布日期:1997-12-28

STUDIESON THE SANDWICH DOT-ELISA IN DETECTING SCHISTOSOME ANTIGEN IN ONCOMELANIA SNAILS

Shen Dakang1; Lou Wenxian1; Zheng Zhiguo2   

  1. 1 Departmentof Parasitology; Shanghai Second Medical University; Shanghai 200025 2 Zhejiang Provincial Institute of Parasitic Disease; Hangzhou 310013
  • Received:1900-01-01 Revised:1900-01-01 Online:1997-12-28 Published:1997-12-28

摘要: 目的 :探讨夹心 dot- ELISA检测钉螺血吸虫抗原的可行性及可靠性。方法 :利用组合单抗 ,通过夹心 dot- EL ISA检测未感染和不同感染期的钉螺血吸虫抗原 ,并与镜检比较。结果 :集体感染组 1- 3wk,夹心 dot- ELISA检测的阳性率、符合率随着时间的推移逐渐呈上升趋势 ;感染4 - 9wk,除第 6wk外 ,阳性率、敏感性及符合率均为 10 0 % ,同镜检结果基本一致 ;未感染组结果全部阴性 ,与镜检结果一致 ;12只镜检显示为其它吸虫感染的钉螺 ,夹心 dot- ELISA阴性。结论 :夹心 dot- EL ISA可用于检测钉螺血吸虫抗原。

关键词: 夹心dot-ELISA, 钉螺, 血吸虫抗原, 组合单抗

Abstract: AIM:To observe the feasibility and reliability of sandwich dot- ELISA in detecting schistosome antigen in Oncomelania snails. METHODS:Combined monoclonal antibodies were used in detecting schistosome antigen of Oncomelania snails which were not infected or infected differently with miracidia. RESULTS:Compared with the results of microscopy, both the positive rate and correspondent rate rise gradually within 1-3 weeks in the group which was infected with collective miracidia, the positive rate, sensitivity and correspondent
rate reached 100% during 4-9 weeks except week 6, being almost the same as the results of microscopy; All the results of the uninfected group were negtive, just the same as microscopy. The results of Oncomelania snails which infected with other trematodes were negative in dot-ELISA. CONCLUSION: Sandwich dot-ELISA might be used to detect schistosome antigen in Oncomelania snails.

Key words: Sandwich dot- ELISA, Oncomelania, schistosome antigen, combined monoclonal antibodies