title: [Clinical usefulness of microparticle enzyme immunoassay for HBeAg and HBeAb in chronic hepatitis B patients].
abstract: A study was made of 73 samples from 6 chronic hepatitis B patients, 2 out of the 6 cases were non-treated and the 4 cases were interferon treated HBeAg, HBeAb, s-ALT and HBV-DNA. Detection of HBeAg and HBeAb were assayed by AxSYM system (Dainabot), which were based on microparticle enzyme immunoassay. 1) Fifty-three out of 73 samples showed positive for HBeAg; 45 samples showed only HBeAg positive (Group A) and 8 samples showed HBeAg and HBeAb positive (Group B). The positive ratios of HBV-DNA in each group 91.1% (41/45) and 50.0% (4/8), respectively and 4 out of the rest 20 samples that showed only HBeAb positive also showed HBV-DNA positive. The above 12 discrepant samples between HBeAg and HBV-DNA were collected from 4 chronic hepatitis B patients who became normal s-ALT levels after liver injury. The HBeAg S/N ratio (sample/negative control) of these samples were near the cutoff value (S/N = 2.1). 2) Comparing the movement between HBeAg and s-ALT levels in 6 chronic hepatitis B patients, the changes of HBeAg S/N ratio were related with the changes of s-ALT. The changes of HBeAg S/N ratio were observed before the movement of s-ALT. In conclusion, the detection of HBeAg/HBeAb by AxSYM system was useful to monitor the clinical course of chronic hepatitis B patients.
authors.affiliation: Laboratory for Clinical Investigation, Osaka University Hospital.
authors.forename: N
authors.initials: N
authors.lastname: Yamashita
authors.forename: M
authors.initials: M
authors.lastname: Deguchi
authors.forename: H
authors.initials: H
authors.lastname: Hosotsubo
authors.forename: S
authors.initials: S
authors.lastname: Asari
mesh_terms: D002908:Chronic Disease; D004279:DNA, Viral / Q000097:blood*; D006509:Hepatitis B / Q000276:immunology* / Q000821:virology; D006510:Hepatitis B Antibodies / Q000097:blood*; D006513:Hepatitis B e Antigens / Q000097:blood*; D006515:Hepatitis B virus / Q000235:genetics*; D006801:Humans; D007124:Immunoenzyme Techniques; D011933:Reagent Kits, Diagnostic / Q000592:standards
chemical_list: D004279:DNA, Viral; D006510:Hepatitis B Antibodies; D006513:Hepatitis B e Antigens; D011933:Reagent Kits, Diagnostic