OALib Journal期刊
ISSN: 2333-9721
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用乳酸脱氢酶为靶分子的免疫层析技术检测恶性疟原虫
, PP. 761-765
Keywords: 恶性疟原虫,乳酸脱氢酶,单克隆抗体,免疫胶体金层析
Abstract:
目的建立一种免疫胶体金层析(gica)法用于恶性疟原虫的检测。方法采用杂交瘤技术制备恶性疟原虫乳酸脱氢酶(ldhpf)单抗,利用筛选出来的单抗制成诊断恶性疟原虫的免疫层析条,以镜检和pcr法为对照,用gica条检测门诊"四热"病人血样,评价其敏感性和特异性,并对其稳定性进行了初步研究。结果筛选出4株抗ldhpf单抗,间接elisa表明4株单抗仅与恶性疟原虫发生反应,而与间日疟原虫、红细胞蛋白、刚地弓形虫和日本血吸虫不发生交叉反应。western-blot结果显示4株单抗能识别恶性疟原虫相对分子质量约为33000处的虫源蛋白。以镜检法和pcr法为标准,gica条检测恶性疟原虫的敏感性分别为88.37%和86.67%,gica与镜检法的符合率均为91.55%。结论gica检测恶性疟原虫简易快速、灵敏度高,无需特殊仪器设备,有望成为一种恶性疟原虫快速免疫诊断试剂盒。
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