127例乙肝表面抗体ELISA检测与化学发光法的比较

Objective To compare the difference between ELISA and chemiluminescence assay in de-tecting hepatitis B surface antibody (HBsAb) serum valued in 5～100mIU/ml. Method 127 HBsAb serum samples that had valued by chemiluminescence were detected using 10 domestic ELISA kits. The correlation between the results of ELISA kits and chemiluminescence assay were analyzed. Coincidence between the results of ELISA kits and chemiluminescence at different OD value range were also analyzed. Results The detected results between 10 domestic ELISA kits and chemiluminescence assay are positive correlation (P<0.01); The optimal coincidence rates of the results of ELISA with those samples valued by chemiluminescence at more than 100mIU/ml was 99.4%; the coinci-dence rate is from 42% to 80% in cut-off±20%. The average coincidence rate is under 60%. Conclusions Though the detected results of 10 domestic ELISA reagents is related closely, the coincidence rate of the results at 5～10mIU/ ml in detecting anti-HBs is low. So it is important to make a positive standard in detecting anti-HBs.     

ELISA与免疫层析法检测抗-HIV假阳性1例病例报道及原因分析

目的 酶联免疫吸附法(ELISA)与免疫层析法检测抗-HIV假阳性1例原因分析.方法 采用两个厂家ELISA法试剂和1种免疫层析法抗-HIV试剂检测同一标本抗-HIV均阳性,同一标本及重新抽取的1份标本送往权威部门进行确证试验,结果抗-HIV阴性.结果 假阳性的主要原因是存在其它抗体的干扰.同一种检测方法不同的检测方式因其方法学的不同其结果也有明显的差异.结论 对于用ELISA法筛查出现阳性的标本,需认真核对初、复检标本,以保证检验结果的准确性和可靠性.     

127例乙肝表面抗体ELISA检测与化学发光法的比较

Objective To compare the difference between ELISA and chemiluminescence assay in de-tecting hepatitis B surface antibody (HBsAb) serum valued in 5～100mIU/ml. Method 127 HBsAb serum samples that had valued by chemiluminescence were detected using 10 domestic ELISA kits. The correlation between the results of ELISA kits and chemiluminescence assay were analyzed. Coincidence between the results of ELISA kits and chemiluminescence at different OD value range were also analyzed. Results The detected results between 10 domestic ELISA kits and chemiluminescence assay are positive correlation (P<0.01); The optimal coincidence rates of the results of ELISA with those samples valued by chemiluminescence at more than 100mIU/ml was 99.4%; the coinci-dence rate is from 42% to 80% in cut-off±20%. The average coincidence rate is under 60%. Conclusions Though the detected results of 10 domestic ELISA reagents is related closely, the coincidence rate of the results at 5～10mIU/ ml in detecting anti-HBs is low. So it is important to make a positive standard in detecting anti-HBs.     

儿童抗核抗体不同稀释度检测结果分析

目的比较不同血清稀释滴度对儿童抗核抗体间接免疫荧光分析(ANA-IIF)结果的影响,探讨降低血清起始稀释度必要性。方法以间接免疫荧光法检测110例健康儿童系列稀释度血清标本抗核抗体(ANA),并与特异性ANA线性免疫(ANA-LIA)结果相比较;同时分析一组ANA-IIF阴性的临床患儿标本ANA-LIA结果。结果健康组标本随着稀释度从1∶80、1∶40、1∶20逐步减低,ANA-IIF阳性检出率有所上升,分别为7.3%、9.1%、10.9%,但差异无统计学意义(P0.05),弱阳性分别为7.3%、15.5%、31.8%,差异有统计学意义(P0.01)。110例健康体检儿童中8例标本检测出特异性ANA,阳性率为7.3%。8例IIF法稀释度1∶80阳性者中,特异性ANA阳性者2例;稀释度1∶40、1∶20新增的4例荧光ANA阳性标本中,有1例特异性ANA阳性。若视ANA-IIF(1∶80)或ANA-LIA任一阳性为ANA阳性,ANA阳性率从7.3%上升到12.7%。29例ANA-IIF(1∶80)为阴性的自身免疫肝病相关自身抗体检测患儿临床标本中,特异性ANA-LIA检测出5例阳性(17.2%)。结论降低儿童血清起始滴度并不能明显提高ANA-IIF阳性检出率,反而增加了非特异的弱阳性,因此,临床实验室不需改变儿童ANA常规标本稀释滴度,联合特异性ANA-LIA的检测有利于ANA的发现。     

127例乙肝表面抗体ELISA检测与化学发光法的比较

目的 探讨浓度处于5～100mIU/ml的乙肝表面抗体(HBsAb)ELISA定性检测与化学发光法的符合情况.方法 采用10种国产主流HBsAb ELISA试剂对127例经用化学发光法检测已知HBsAb浓度的标本进行检测,分析ELISA检测OD值与抗体浓度的相关性,并以试剂盒临界值为准分别比较不同OD值段ELISA结果 与化学发光法结果 的符合率.结果 10种同产HBsAb ELISA试剂盒OD值与化学发光定最值均呈正相关(P<0.01);ELISA法检测结果 与化学发光的阴阳符合率比较显示,5～10mIU/ml样本符合率较低,只有37.5%,在大于100mIU/ml时可达99.4%,在10～30mIU/ml,30～100mIU/ml分别为75.3%和90.7%;OD值存0～0.05,0.05～0.105、0.105～0.21、0.21～0.3、0.3～0.5、大于0.5分别为73.4%、65.3%、60.5%、72.0%、86.5%、92.2%.结果 显示阴阳结果 符合率在较高在大于0.5时最高,在介于0.105～0.21的符合率最低;处于试剂盒临界值±20%处的标本的符合率普遍偏低,最低只有42%,最高亦不超过80%.结论 虽然10种国产ELISA试剂之间的检测结果 没有统计学差异,但是对于浓度介于5～10mIU/ml标本符合率低.而且在接近试剂盒临界值时与化学发光结果 符合率则很低,但是随着OD值的增高符合率也逐渐升高.考虑到乙肝表面抗体的特殊临床意义,如何选取一个更为科学客观的结果 判断临界值值得进一步探讨.     

Array-ELISA法和ECLIA法测定六项肿瘤标志物的比较研究

目的分析和评价6项肿瘤标志物测定试剂盒[微阵列酶联免疫法(Array-ELISA)]在肿瘤标志物检测中的应用价值。方法采用Array-ELISA和电化学发光免疫分析法(ECLIA)检测相同标本的6项临床常见肿瘤标志物:甲胎蛋白(AFP)、癌胚抗原(CEA)、前列腺特异性抗原(PSA)、糖类抗原125(CA125)、糖类抗原199(CA199)和糖类抗原153(CA153)。采用受试者工作特征(ROC)曲线进行分析。结果 2种方法检测AFP、CEA、PSA和CA125的阳性率差异无统计学意义(P>0.05),检测CA199和CA153的阳性率差异有统计学意义(P<0.01)。2种方法对AFP、CEA、PSA、CA125和CA199的检测结果总符合率均>85%,仅CA153的总符合率为61.1%。2种方法对6项肿瘤标志物的检测结果显著相关(P<0.01),相关系数(r)为0.695～0.960。2种方法检测AFP、CEA、PSA、CA125和CA199对相关肿瘤诊断的ROC曲线下面积介于0.62～0.99之间;用Array-ELISA检测CA153对乳腺癌诊断的ROC曲线下面积低于ECLIA。结论 Array-ELISA与ECLIA对6项肿瘤标志物的检测结果均有良好一致性,可以引入Array-ELISA检测6项肿瘤标志物作为常规体检项目和筛查项目。     

抗核抗体间接免疫荧光法检测试剂的比对分析

目的 通过AESKU试剂和欧蒙试剂对164例抗核抗体核型结果的比对分析,评价AESKU试剂间接免疫荧光法抗核抗体检测试剂的性能.方法 从2015年1~12月广东省中医院门诊及住院患者中选取164例样本,分为AID患者组(n=115)和健康对照组(n=49),同时采用AESKU试剂与欧蒙试剂对抗核抗体核型进行双盲、平行检测,不一致结果采用第三方试剂复核.计算两种试剂的阳性符合率、阴性符合率、总符合率、Kappa系数,并进行Kappa一致性检验和配对χ2检验.结果 AESKU试剂与欧蒙试剂的总体阳性符合率为94.78%,阴性符合率为93.88%,总符合率为94.51%;Kappa=0.871,P<0.05,两种试剂的检测结果高度一致,差异无统计学意义(P>0.05).结论 AESKU试剂与欧蒙试剂具有等效性和很高的符合率,操作简便快速、结果清晰易读,适合临床广泛应用.     

基于ISO 20387:2018标准的生物样本库信息管理系统的建设与应用

ISO 20387:2018 标准《生物技术—生物样本保藏—生物样本库通用要求》由国际标准化组织于 2018 年 8 月正式发布,是全球第一个生物样本库专用认可标准,对样本库的建设具有指导和实践作用[1].标准细化了生物样本库质量管理的要求,成为目前最先进、最适用的生物样本库质量标准. 信息管理系统是样本库质量管理体系...     

127例乙肝表面抗体ELISA检测与化学发光法的比较

Objective To compare the difference between ELISA and chemiluminescence assay in de-tecting hepatitis B surface antibody (HBsAb) serum valued in 5～100mIU/ml. Method 127 HBsAb serum samples that had valued by chemiluminescence were detected using 10 domestic ELISA kits. The correlation between the results of ELISA kits and chemiluminescence assay were analyzed. Coincidence between the results of ELISA kits and chemiluminescence at different OD value range were also analyzed. Results The detected results between 10 domestic ELISA kits and chemiluminescence assay are positive correlation (P<0.01); The optimal coincidence rates of the results of ELISA with those samples valued by chemiluminescence at more than 100mIU/ml was 99.4%; the coinci-dence rate is from 42% to 80% in cut-off±20%. The average coincidence rate is under 60%. Conclusions Though the detected results of 10 domestic ELISA reagents is related closely, the coincidence rate of the results at 5～10mIU/ ml in detecting anti-HBs is low. So it is important to make a positive standard in detecting anti-HBs.