摘要
目的:以微量中和试验为金标准,评价胶体金法和酶联免疫吸附法这两种高通量检测方法的检测能力。方法:以江苏省南京市某社区招募的250名健康成年人为研究对象,采集血样开展中和抗体水平分析,用微量中和试验、胶体金法和酶联免疫吸附法分别对血样进行测试,评价这两种高通量中和抗体检测方法的灵敏度、特异度及与金标准的相关系数等。结果:当金标准的判定界值取为1∶4时(<4为阴性),胶体金法的灵敏度为97.50%,特异度为98.82%,正确指数为0.963,与金标准之间的Kappa值为0.9632;酶联免疫吸附法的灵敏度为95.00%,特异度为100.00%,正确指数为0.950,Kappa值为0.9627。这两种方法相对于微量中和试验的相关系数为0.963。结论:建立的新型冠状病毒中和抗体高通量检测方法具有科学性和可行性。
Objective:To evaluate the detection capability of two high-throughput assays,colloidal gold and enzyme-linked immunosorbent assay,based on a micro-neutralisation test as the gold standard.Methods:Blood samples were collected from 250 healthy adults recruited from a community in Nanjing,Jiangsu Province for neutralizing antibody level analysis.The blood samples were tested by micro-neutralization test,colloidal gold method and enzyme-linked immunosorbent assay were used to evaluate the sensitivity,specificity and correlation coefficient with the gold standard of these two high-throughput neutralizing antibody assays.Results:The sensitivity of the colloidal gold method was 97.50%,the specificity was 98.82%,the Youden's index was 0.963 and the Kappa value between the gold standard and the ELISA was 0.9632.The sensitivity of the ELISA was 95.00%,the specificity was 100.00%,the Youden's index was 0.950 and the Kappa value was 0.9627.The correlation coefficient on these two methods relative to the micro-neutralisation test was 0.963.Conclusion:The high-throughput methods for the detection of SARS-CoV-2 neutralizing antibodies are scientific and feasible.
作者
张诗晗
田华
姜娜
王笑辰
黄昊頔
李楚楚
孔筱筱
董晨
周璐
彭杰夫
郭喜玲
金辉
朱立国
ZHANG Shihan;TIAN Hua;JIANG Na;WANG Xiaochen;HUANG Haodi;LI Chuchu;KONG Xiaoxiao;DONG Chen;ZHOU Lu;PENG Jiefu;GUO Xiling;JIN Hui;ZHU Liguo(Key Laboratory of Environmental Medicine Engineering,Ministry of Education,Department of Epidemiology and Health Statistics,School of Public Health,Southeast University,Nanjing 210009,China;Acute Infectious Disease Control and Prevention Institute,Jiangsu Provincial Center for Disease Control and Prevention,Nanjing 210009,China;Department of Immunization Program Jianye District Centre for Disease Control and Prevention,Nanjing 210031,China)
出处
《东南大学学报(医学版)》
CAS
2023年第3期439-445,共7页
Journal of Southeast University(Medical Science Edition)
基金
江苏省社会发展项目(BE2021739)。
关键词
微量中和试验
社区健康人群
中和抗体
高通量
microneutralization test
community health population
neutralizing antibody
high-throughput
作者简介
并列第一作者:张诗晗(1997),女,江苏盐城人,在读博士研究生。E-mail:1115193022@qq.com;并列第一作者:田华(1977),女,甘肃兰州人,主任技师,医学硕士。E-mail:85048916@qq.com;通信作者:金辉,E-mail:jinhui_hld@163.com;通信作者:朱立国,E-mail:zhuliguo2002@163.com。