Clinical significance of detecting RNA and anti HEV antibody in convalesent sera in patients with acute HEV hepatitis / 中华实验和临床病毒学杂志

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the anti hepatitis E virus (HEV) and HEV RNA in acute and convalescent sera of patients with NonA-E acute hepatitis.</p><p><b>METHODS</b>The serum samples were taken from 95 patients who were diagnosed as acute NonA-E hepatitis. Enzyme immunoassay (EIA) was used for detecting anti-HEV Immunoglobulin G (IgG, Genolable and Wantai EIA anti-HEV kits). RT-PCR amplification of HEV RNA was based on the open reading frame 2 region of HEV and the PCR products were sequenced.</p><p><b>RESULTS</b>Sera from 95 patients who were negative for anti-HEV in acute phase were followed up for 11-35 days to detect the anti-HEV antibody in recovery phase, 16/95 (16.84%) were positive for anti-HEV (wantai EIA anti-HEV kits). Ten (62.50%) were positive for HEV RNA in acute phase. Sequence analysis showed that 4 were HEV genotype. 6 were HEV genotype; 12/95 (12.50%) were positive for anti-HEV (Genolable EIA anti-HEV kits). Seven were positive for HEV RNA; 4 belonged to HEV genotype, 3 were HEV genotype.</p><p><b>CONCLUSION</b>It is significant and necessary to detect anti HEV antibody and HEV RNA in patients with HEV infection during acute phase and convalesent phase.</p>