疾病类型和临床指标对CMIA抗HCV抗体检测的影响  

Influence of disease types and clinical indexes on the CMIA determination results of anti-HCV antibody

作　　者：何鑫 李燕平[2] HE Xin;LI Yanping(The First School of Clinical Medicine of Lanzhou University,Lanzhou 730000,Gansu,China;Department of Clinical Laboratory,the First Hospital of Lanzhou University,Lanzhou 730000,Gansu,China)

机构地区：[1]兰州大学第一临床医学院,甘肃兰州730000 [2]兰州大学第一医院检验科,甘肃兰州730000

出　　处：《检验医学》2023年第3期287-290,共4页Laboratory Medicine

摘　　要：目的探讨化学发光微粒子免疫测定法(CMIA)测定抗HCV抗体产生灰区结果的影响因素。方法选取采用CMIA进行抗HCV抗体检测,且结果位于灰区(S/CO值为1.0~5.0)的患者183例(灰区组),包括恶性肿瘤33例、乙型肝炎16例、胆囊炎16例、胆囊结石13例、良性肿瘤13例、肝硬化11例、胆管结石9例、胆管炎9例,其他疾病63例。以抗HCV抗体检测结果为阴性(S/CO值<1.0)的健康体检者33名作为正常对照组。采用逆转录聚合酶链反应(RT-PCR)检测所有患者的HCV RNA。收集所有研究对象的临床资料和实验室指标检测结果,记录相应的酶联免疫吸附试验(ELISA)和电化学发光法抗HCV抗体检测结果。采用多元线性回归分析探讨抗HCV抗体检测结果的影响因素。结果灰区组HCV RNA检测结果均为阴性。CMIA和电化学发光法与RT-PCR的符合率为100.00%,ELISA与RT-PCR的符合率为97.81%。多元线性回归分析结果显示,良性肿瘤(t=2.080,P=0.039)可使CMIA检测抗HCV抗体的S/CO值升高,渗透压升高(t=-2.238,P=0.027)可使CMIA检测抗HCV抗体的S/CO值降低,其他指标对CMIA检测抗HCV抗体无显著影响(P>0.05)。灰区组血清离子渗透压与正常对照组比较,差异无统计学意义(P>0.05)。结论采用CMIA检测有良性肿瘤史患者的样本时S/CO值可能会升高,导致产生灰区结果。Objective To investigate the influencing factors of grey-zone results in anti-hepatitis C virus(HCV)antibody determination by chemiluminescence microparticle immunoassay(CMIA).Methods Totally,183 patients in the grey-zone(S/CO value was 1.0-5.0)(grey-zone group)were enrolled for anti-HCV antibody determination by CMIA.There were 33 cases of malignant tumors,16 cases of hepatitis B,16 cases of cholecystitis,13 cases of gallstones,13 cases of benign tumors,11 cases of liver cirrhosis,9 cases of bile duct stones,9 cases of cholangitis and 63 cases of other diseases.Totally,33 healthy subjects with negative results of anti-HCV antibody(S/CO value<1.0)were enrolled as control group.Reverse transcription-polymerase chain reaction(RT-PCR)was used to determine HCV RNA.The clinical data of all the patients and the laboratory determination results of all the subjects were collected,and the anti-HCV antibody determination results by enzymelinked immunosorbent assay(ELISA)and electrochemiluminescence immunoassay were recorded.Multiple linear regression analysis was used to investigate the influencing factors of anti-HCV antibody determination results.Results The results of HCV RNA determination in grey-zone group were negative.The consistency of CMIA and electrochemiluminescence immunoassay with RT-PCR was 100.00%,and the consistency of ELISA with RT-PCR was 97.81%.The results of multiple linear regression analysis showed that the S/CO value of anti-HCV antibody determined by CMIA could be increased by benign tumors(t=2.080,P=0.039)and be decreased by osmolality(t=-2.238,P=0.027).The other indicators had no effect on the determination of anti-HCV antibody by CMIA(P>0.05).There was no statistical significance in serum osmolality between grey-zone group and control group(P>0.05).Conclusions When using CMIA to determine the samples from patients with a history of benign tumors,the S/CO value may increase,resulting in grey-zone results.

关 键 词：丙型肝炎病毒 化学发光微粒子免疫测定法 抗体 灰区 

分 类 号：R373.2[医药卫生—病原生物学]