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Primary study of the antigenicity of a multiple antigen peptides in diagnosis of hepatitis E virus
Author(s): 
Pages: 420-421
Year: Issue:  5
Journal: YOUJIANG MEDICAL JOURNAL

Keyword:  多聚抗原肽戊型肝炎病毒合成多肽;
Abstract: 目的将多聚抗原肽(MAPs)技术用于免疫测定,为诊断戊型肝炎寻找更好的诊断试剂盒.方法根据戊型肝炎病毒(HEV)开放阅读框架2(ORF2)中含有的抗原表位,从戊型肝炎病毒中国株蛋白的氨基酸序列中选取S 30段抗原肽,用固相合成法分别进行化学合成普通线形抗原肽和MAPs肽段,并用ELISA分别检测其抗原性.结果与国外试剂盒相比较,两者的符合率有差异.但MAPs肽段的符合率高于普通线形抗原肽,在检测灵敏度、特异性上MAPs肽段明显优于普通线形抗原肽.结论以单一的戊型肝炎的抗原表位肽检测戊型肝炎存在漏检.在MAPs技术的基础上,合成多肽抗原的灵敏度得到明显提高.
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