中国寄生虫学与寄生虫病杂志 ›› 2010, Vol. 28 ›› Issue (2): 16-114.

• 研究简报 • 上一篇    下一篇

旋毛虫感染兔唾液中抗旋毛虫IgG抗体水平

刘俊琴1 *,申丽洁2   

  1. 1 山西医科大学汾阳学院检验系,汾阳 032200;2 大理学院基础医学院寄生虫学教研室,大理 671000
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-04-30 发布日期:2010-04-30
  • 通讯作者: 刘俊琴

IgG Antibody Level in Saliva from Rabbits Infected with Trichinella spiralis

Liu Jun-qin1 *,Shen Li-jie2   

  1. 1 Department of Medical Laboratory,Fenyang College of Shanxi Medical University,Fenyang 032200,China;2 Department of Parasitology,Faculty of Basic Medical Sciences,Dali University,Dali 671000,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-04-30 Published:2010-04-30
  • Contact: Liu Jun-qin

摘要: 将28只日本大耳兔随机分为实验组(20只)和对照组(8只),实验组用旋毛虫脱囊幼虫经口灌胃日本大耳兔(3 000条/只),对照组不做任何处理。采集感染前和感染后1~6周兔唾液和血清以及对照组兔唾液和血清。建立旋毛虫肌肉幼虫排泄分泌抗原(MLESA)为诊断抗原的间接ELISA,测定兔唾液和血清中抗旋毛虫IgG抗体。结果显示,感染后1~6周,唾液阳性率分别为10%、15%、40%、65%、85%和95%;血清阳性率分别为35%、50%、80%、90%、100%和100%。感染后1~3周,唾液阳性率与血清阳性率差异有统计学意义(χ2=3.58、5.23、6.67, P<0.05),感染后4~6周,两者差异无统计学差异(χ2=0.12、1.03、1.03,P>0.05)。提示在血清标本采集困难的情况下,MLESA的间接ELISA法检测唾液中抗旋毛虫IgG抗体可作为旋毛虫病免疫诊断的辅助方法。

关键词: 旋毛虫, 肌肉幼虫, 排泄分泌抗原, IgG, 唾液, 血清

Abstract: Twenty-eight Japanese big ear rabbits were randomly divided into control group and experimental group. Twenty rabbits in experimental group were each infected with 3 000 larvae of Trichinella spiralis. Serum and saliva samples were collected at pre-infection and every week after infection, and were examined for IgG antibody by indirect ELISA using T. spiralis muscle larvae excretory-secretory antigen (MLESA). At 1, 2, 3, 4, 5 and 6 weeks afer infection, the positive rate in saliva samples was 10%, 15%, 40%, 65%, 85%, and 95%, respectively; and that of serum samples was 35%, 50%, 80%, 90%, 100%, and 100%, respectively. The positive rate was significantly different between saliva and serum samples at 1, 2 and 3 weeks post-infection (χ2=3.58, 5.23, 6.67, P<0.05), but no significant difference at 4, 5, and 6 weeks post-infection (χ2=0.12, 1.03, 1.03, P>0.05) . The results indicate that the indirect ELISA using MLESA to detect IgG antibody in saliva may be helpful for clinical diagnosis of trichinellosis.

Key words: Trichinella spiralis, Muscle larvae, Excretory-secretory antigen, IgG, Saliva, Serum