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旋毛虫p49抗原相关抗体的快速检测
A TWO-PARTICLE TURBIDIMETRIC LATEX IMMUNOASSAY FOR THE DETECTION OF SPECIFIC ANTIBODIES OF TRICHINELLA SPIRALIS
【摘要】 目的 建立旋毛虫病的快速检测技术。方法 基因工程抗原包被有色乳胶颗粒,抗抗体包被磁性颗粒,在抗体存在下形成抗原- 乳胶- 抗体- 抗抗体- 磁性颗粒的复合场,在磁场作用下沉淀下来,从而达到快速检测旋毛虫相关抗体的目的。结果 19 份人工感染鼠血清、5 份人工感染猪血清、3 份旋毛虫病猪血清、4 份病人血清均呈阳性反应,而对照血清均为阴性反应;该方法在鼠感染旋毛虫后第五天可测出IgM 抗体,第九天可测出IgG抗体。结论 本检测技术简便易行,不需专用设备,可望成为一种快速诊断旋毛虫病的有效方法。
【Abstract】 Aim To establish a rapidly detecting method for the specific antibodies of Trichinella spiralis Method Latex was coated with p49/GST and polystyrene beads(Dynabeads)were coated with anti-antibodies SAM-IgG、SAH-IgG、RAP-IgG or SAM-IgM Then the test serum was incubated with two particles for 30 min at room temperature with slowly shaking After sedimentation of the polystyrene beads with a magnet,the turbidity of the resultant latex suspension was estimated with eyes or measured spectrophotometrically at a wavelength of 400nm Results Positive result of IgG antibody were found in 19 sera of experimental infected mice,3 sera of experimental infected swine and 4 sera of patients The IgM and IgG can be check up in mice after 5 and 9 days after experimental infection The result agreed with those obtained by ELISA Conclusion A two-particle turbidimetric latex immunoassy established by this study is a rapid,easy and precise method for the diagnosis of the trichinosis
【Key words】 Trichinella spiralis; Fusion protein p49/GST; Latex-dyvnabeads assay;
- 【文献出处】 中国人兽共患病杂志 ,CHINESE JOURNAL OF ZOONOSES , 编辑部邮箱 ,2000年01期
- 【分类号】R446.6
- 【被引频次】26
- 【下载频次】70