JCLA:Eu3+/Sm3+双标记时间-分辨荧光免疫法测定丙型肝炎病毒抗体

2019-06-03 不详 网络

本研究的开发一种基于时间分辨荧光免疫分析(TRFIA)系统的新型免疫分析方法,从而用于同时检测丙型肝炎病毒IgM和IgG抗体。 研究人员制备了包被重组HCV抗原和Eu3+‐标记的IgM和Sm3+标记的IgG抗体。HCV‐IgM/IgG TRFIA建立并优化,随后进行方法学评估。数据表示为<v:shapetype id="_x0000_t75" coordsize="21600,21600

本研究的开发一种基于时间分辨荧光免疫分析(TRFIA)系统的新型免疫分析方法,从而用于同时检测丙型肝炎病毒IgMIgG抗体。

研究人员制备了包被重组HCV抗原和Eu3+‐标记的IgMSm3+标记的IgG抗体。HCVIgM/IgG TRFIA建立并优化,随后进行方法学评估。数据表示为urn:x-wiley:08878013:media:jcla22659:jcla22659-math-0001+SD ,使用SPSS 13.0软件进行分析。采用百分位数法计算截断值。

研究显示HCVIgMHCVIgG的检测灵敏度分别为0.06 S/CO0.15 S/CO。当HCVIgMHCVIgG呈强阳性的样品被连续稀释至1:101:81 920时,HCVIgMHCVIgG1:401:40 9601:201:40 960之间具有良好的线性。HCVIgM和‐IgG的检测内变异系数(CV)平均值分别为3.45%3.71%,检测内变异系数(CV)分别为6.49%6.79%。当HCV‐阴性/阳性血清经ELISA检测并使用已建立的试剂盒时,HCVIgM的阴性、阳性和总符合率分别为93.3%(28/30)100%(25/25)96.4%(53/55),而HCVIgG的阴性、阳性和总符合率分别为93.3%(28/30)100%(35/35)96.9%(63/65)。此外,建立的试剂盒稳定性较好,37℃保存7天后荧光值分别下降到11.1%9.5%

我们建立了一种双标签HCVIgM/IgG TRFIA检测方法,该方法检测范围广、特异性高、灵敏度高、稳定性好,对同时测定HCV-IgMHCV-IgG滴度具有良好的临床价值。

原始出处:

Xue Yang, Yan Ye , Eu3+/Sm3+ duallabel timeresolved fluoroimmunoassay for measurement of hepatitis C virus antibodies

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