Investigation of Viral Hepatitis Seroepidemiology by Using Protein Microarray / 医学研究杂志

ABSTRACT

Objective The anti-HCV positive results obtained from ELISA assay was confirmed by using protein microarray, and then the difference of detection rate of different antibody function domains was studied through observing low risk population. Methods The HCV mixing antigen, core area antigen, NS3 domain antigen, NS4 domain antigen, NS5 domain antigen were spotted on the slide. The 48 serum samples, which was positive HCV detected by using ELISA assay, were chosen from the specimens applying to investigation of viral hepatitis seroepidemiology in 2001, and furthermore the antibodies containing different function domain were detected by using protein microarray. Results The negative results were obtained from different domains of 15 samples. Then 1-4 antibodies from 33 samples were positive. The total detection rate of anti-C, anti-NS3, anti-NS4, anti-NS5 was 51.5%, 51.5%, 48.5% and 57.6% respectively. In these above statistics, the detection rate of anti-C from Zhoushan, Quzhou, Wenzhou, Shaoxing was 53.3%, 33.3%, 44.4%, 66.7% respectively; the detection rate of anti-NS3 was 33.3%, 100%, 55.6%, 66.7% respetively; the detection rate of anti-NS4 was 60.0%, 0%, 33.3%, 66.7% respectively; 抗the detection rate of anti-NS5 was 66.7%, 0%, 44.4%, 83.3% respectively. Conclusion The difference of distribution of different antibody function domains existed through studying low risk population. Moreover, the protein microarray assay was highly specific for detecting and identifying HCV antibody in low risk population.