A chemiluminescence enzyme immunoassay based on magnetic microparticles (MmPs-CLEIA) was developed to evaluate serum a-fetoprotein (AFP) in parallel with traditional colorimetric enzyme-linked immunosorbent assay (ELI...A chemiluminescence enzyme immunoassay based on magnetic microparticles (MmPs-CLEIA) was developed to evaluate serum a-fetoprotein (AFP) in parallel with traditional colorimetric enzyme-linked immunosorbent assay (ELISA).A systematic comparison between the MmPs-CLEIA and colorimetric ELISA concluded that the MPs-CLEIA exhibited fewer dosages of immunoreagents,less total assay time,and better linearity,recovery,precision,sensitivity and validity.AFP was detected in forty human serum samples by the proposed MPs-CLEIA and ELISA,and the results were compared with commercial electrochemiluminescence immunoassay (ECLIA) kit.The correlation coefficient between MPs-CLEIA and ELISA was obtained with R 2 0.6703;however,the correlation between MPs-CLEIA and ECLIA (R 2 0.9582) was obviously better than that between colorimetric ELISA and ECLIA (R 2 0.6866).展开更多
目的比较两种免疫酶试剂盒recomWell HEV IgG(swine)ELISA(recom Well )和recomLine HEV IgG(swine)(recom Line )检测猪抗E型肝炎病毒(hepatitis E virus,HEV)IgG的准确性。方法分别采用基因3型和基因4型人HEV(human HEV,hHEV)人...目的比较两种免疫酶试剂盒recomWell HEV IgG(swine)ELISA(recom Well )和recomLine HEV IgG(swine)(recom Line )检测猪抗E型肝炎病毒(hepatitis E virus,HEV)IgG的准确性。方法分别采用基因3型和基因4型人HEV(human HEV,hHEV)人工感染无菌猪各2头,采用上述试剂盒检测猪感染后不同天数的血清样品中抗HEV IgG,同时对两头接种PBS液的无菌猪血清样品18份和4头未感染猪的18份血清进行了检测。结果 2头猪人工感染基因3型hHEV后,recomWell检测均于感染后21d出现阳性,并持续56d;recomLine检测,其中1头猪于感染后14d呈阳性,而另1头于感染后21d呈阳性,且均持续56d。2头猪人工感染基因4型hHEV后,两种试剂盒检测,其中1头猪于感染后21d呈阳性,另1头35d呈阳性,并均持续56d仍为阳性。18份对照血清两种试剂盒检测均为阴性。18份未人工感染猪血清中,只有1份两种试剂盒检测均为阳性。两种试剂盒同时检测的共72份样品中,recomWell检出阳性样品23份,阳性率约为32.0%(23/72),recomLine检出阳性样品24份,阳性率约为33.30%(24/72),检出阳性率两者差异不显著(P>0.05);在recomWell检出的23份阳性样品中,recomLine检测均为阳性,两者阳性检出符合率为100%(23/23);recomWell的漏检率约为4.1%(1/24)。结论 recomWellR和recomLine均可用于猪抗HEVIgG的检测,recomLine检测灵敏度略高于recomWell,且操作更简便,不需要特殊昂贵的检测设备,特别适合用于基层检测猪抗HEV IgG。展开更多
基金supported by the National Basic Research Program of China (973 Program,no. 2007CB714507)National Nature Science Foundation of China (no. 90813015)
文摘A chemiluminescence enzyme immunoassay based on magnetic microparticles (MmPs-CLEIA) was developed to evaluate serum a-fetoprotein (AFP) in parallel with traditional colorimetric enzyme-linked immunosorbent assay (ELISA).A systematic comparison between the MmPs-CLEIA and colorimetric ELISA concluded that the MPs-CLEIA exhibited fewer dosages of immunoreagents,less total assay time,and better linearity,recovery,precision,sensitivity and validity.AFP was detected in forty human serum samples by the proposed MPs-CLEIA and ELISA,and the results were compared with commercial electrochemiluminescence immunoassay (ECLIA) kit.The correlation coefficient between MPs-CLEIA and ELISA was obtained with R 2 0.6703;however,the correlation between MPs-CLEIA and ECLIA (R 2 0.9582) was obviously better than that between colorimetric ELISA and ECLIA (R 2 0.6866).
文摘目的比较两种免疫酶试剂盒recomWell HEV IgG(swine)ELISA(recom Well )和recomLine HEV IgG(swine)(recom Line )检测猪抗E型肝炎病毒(hepatitis E virus,HEV)IgG的准确性。方法分别采用基因3型和基因4型人HEV(human HEV,hHEV)人工感染无菌猪各2头,采用上述试剂盒检测猪感染后不同天数的血清样品中抗HEV IgG,同时对两头接种PBS液的无菌猪血清样品18份和4头未感染猪的18份血清进行了检测。结果 2头猪人工感染基因3型hHEV后,recomWell检测均于感染后21d出现阳性,并持续56d;recomLine检测,其中1头猪于感染后14d呈阳性,而另1头于感染后21d呈阳性,且均持续56d。2头猪人工感染基因4型hHEV后,两种试剂盒检测,其中1头猪于感染后21d呈阳性,另1头35d呈阳性,并均持续56d仍为阳性。18份对照血清两种试剂盒检测均为阴性。18份未人工感染猪血清中,只有1份两种试剂盒检测均为阳性。两种试剂盒同时检测的共72份样品中,recomWell检出阳性样品23份,阳性率约为32.0%(23/72),recomLine检出阳性样品24份,阳性率约为33.30%(24/72),检出阳性率两者差异不显著(P>0.05);在recomWell检出的23份阳性样品中,recomLine检测均为阳性,两者阳性检出符合率为100%(23/23);recomWell的漏检率约为4.1%(1/24)。结论 recomWellR和recomLine均可用于猪抗HEVIgG的检测,recomLine检测灵敏度略高于recomWell,且操作更简便,不需要特殊昂贵的检测设备,特别适合用于基层检测猪抗HEV IgG。