【摘要】 目的通过对抗核抗体、可提取性核抗原(ENA)及抗核抗体谱3检测方法的分析比较,探讨有益于临床诊断的检测组合。方法采用人喉癌上皮细胞及猴肝作为基质的间接免疫荧光法检测抗核抗体;应用欧蒙斑点法检测可提取性核抗原中的如下抗原:nRNP/Sm、Sm、SSA、SSB、Scl-70、Jo-1;以绿蝇短膜虫为基质,应用间接免疫荧光法检测抗双链DNA抗体;通过欧蒙印迹法检测15种自身抗体。结果将3种稀释度(1:10、1:80、1:100)抗核抗体检测的阳性率进行比较,1:10及1:80稀释的血清抗核抗体阳性率差异有统计学意义(P<0.01),其余2种比较差异无统计学意义;在核点型、胞浆颗粒型及均质型等多种核型的检测中抗核抗体谱3的阳性检出率高于ENA谱;在抗双链DNA抗体的检测中间接免疫荧光法的阳性检出率略高于欧蒙印迹法。结论在应用间接免疫荧光法的抗核抗体检测中,使用1:80的稀释度更有利于提高检出率,而且涵盖15种抗原的抗核抗体谱3也为临床诊断提供了有利的依据。更多还原

【Abstract】 Objective To study more significant detective combination by comparing three methods of antinuclear antibody, extractable nuclear antigen and antinuclear antibodies 3.Methods Three methods were adopted as follows:detecting antinuclear antibody with HEP-2 and prime hepar as antigen media,determining extractable nuclear antigen by EUROASSAY including nRNP/Sm、Sm、SSA、SSB、Scl-70 and Jo-1,using crithidia luciliae as antigen,to detect ds-DNA antibody with indirect immunofluorescence assay,and to study 15 autoantibodies by EUROLINE.Results To compare positive rates of three dilution(1:10, 1:80,1:100) in ANA detection,there existed significant difference(P<0.01) between two dilution of 1:10 and 1.80 only,.In the detection of multiple nuclear types(cytoplasmic pattern,centromere pattern and homegeneous pattern etc),the positive rate of antinucleatr antibodies 3 was higer than that of ENA.IIF was prior to the EUROLINE in the detection of ds-DNA.Conclusion During detecting ANA with IIF,the dilution of 1:80 has advantages in raising positive rate,and ANA3 of 15 antigens provides facilities for clinical diagnosis.更多还原