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首页> 外文期刊>Journal of Clinical Microbiology >Evaluation of a Cordia-IC enzyme-linked immunosorbent assay kit for the detection of circulating immune complexes.
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Evaluation of a Cordia-IC enzyme-linked immunosorbent assay kit for the detection of circulating immune complexes.

机译:评估Cordia-IC酶联免疫吸附测定试剂盒以检测循环免疫复合物。

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A commercial kit (Cordia-IC) from Cordis Laboratory, Miami, Fla., was compared with the Raji cell radioimmunoassay for its ability to detect circulating immune complexes (CIC) in sera from 30 control subjects and 118 patients with infectious diseases. The 118 patients were categorized into the following groups: (i) 23 patients with bacterial endocarditis, (ii) 41 patients with bacteremia from an infected intravascular catheter or access device, and (iii) 54 patients with Staphylococcus aureus bacteremia related to a deep tissue infection. The Cordia-IC was comparable to the Raji cell radioimmunoassay in intraassay variability (4.0 versus 8.0%) and interassay reproducibility (8.7 versus 20.0%). Neither assay found CIC amounts above 12.5 micrograms equivalents (eq) of aggregated human gamma globulin (AHG) per ml in any of the 30 control individuals. In group 1, Cordia-IC detected 19 of 23 positives (mean, 73.6 micrograms eq of AHG per ml), whereas the Raji cell detected 16 of 23 positives (mean, 54.8 micrograms eq of AHG per ml). In group 2, Cordia-IC detected 19 of 41 positives (mean, 20.6 micrograms eq of AHG per ml), whereas the Raji cell detected 16 of 41 positives (mean, 15.1 micrograms eq of AHG per ml). In group 3, Cordia-IC found 38 of 54 positives (mean, 28.0 micrograms eq of AHG per ml), whereas the Raji cell found 32 of 54 positives (mean, 23.9 micrograms eq of AHG per ml). Statistically, these findings were not significantly different in any of the three patient groups (P> 0.15), and there was an overall good correlation between the results obtained by the two assays (r+0.64, P<0.001). The Cordia-IC provided a suitable assay for the detection of CIC and might find application in routine clinical laboratories.
机译:将来自佛罗里达州迈阿密市Cordis实验室的商用试剂盒(Cordia-IC)与Raji细胞放射免疫分析法相比,它具有检测30位对照对象和118例传染病患者血清中循环免疫复合物(CIC)的能力。 118例患者分为以下几类:(i)23例细菌性心内膜炎;(ii)41例感染了血管内导管或进入装置的菌血症;(iii)54例与深层组织有关的金黄色葡萄球菌菌血症感染。在批内变异性(4.0对8.0%)和批间可重复性(8.7对20.0%)方面,Cordia-IC与Raji细胞放射免疫法相当。在30个对照个体中,任何一个都没有发现CIC量超过每毫升12.5微克当量(eq)的聚合人γ球蛋白(AHG)。在第1组中,Cordia-IC检测到23个阳性中的19个(平均,每毫升73.6微克当量的AHG),而Raji细胞检测到23个阳性中的16个(平均,每毫升54.8微克当量的AHG)。在第2组中,Cordia-IC检测到41个阳性中的19个(平均,每毫升20.6微克当量的AHG),而Raji细胞检测到41个阳性中的16个(平均,每毫升AHG的15.1微克当量)。在第3组中,Cordia-IC发现54个阳性中的38个(平均,每毫升28.0微克当量的AHG),而Raji细胞发现54个阳性中的32个(平均,每毫升23.9微克当量的AHG)。从统计学上讲,在三个患者组中,这些发现均无显着差异(P> 0.15),并且通过两种测定获得的结果之间总体上具有良好的相关性(r + 0.64,P <0.001)。 Cordia-IC为CIC的检测提供了一种合适的方法,可能会在常规临床实验室中得到应用。

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