title: [Fast detection of DNA of hepatitis B virus by real time PCR].
abstract: 90 blood plasma samples from patients with suspected chronic viral hepatitis B (CVHB) were analyzed by real-time polymerized chain reaction (PCR). The findings were compared with the results obtained by 2 PCR electrophoresis-based test-systems; the sensitivity limit for the quantification of DNA of hepatitis B virus (HBV) was determined; in the present case, the limit corresponded to 30 replications of HBV DNA to reaction (600 GE/ml). The positive result of real-time PCR was registered in 53.3% of cases. The quantity of HBV DNA replications in blood plasma samples varied from 30 to 3.9 x 10(6) per reaction (600-7.8 x 10(7) GE/ml). Serological profiles were analyzed in 18 patients with the verified diagnosis of CVHB. HBV DNA was detected in blood of 65% of HBsAg(+)-patients. The markers of HBeAg replication were noted in 35.5% of patients; it is noteworthy, that HBeAg(+)-samples were characterized by a higher level of viral loads (> or = 10(6) GE/ml) versus HBeAg(-)-samples (> or = 6 x 10(3) GE/ml). An analysis of blood-plasma samples dynamically obtained from one patient with chronic renal insufficiency and CVHB showed a decreased level of viral load from 1.7 x 10(7) GE/ml to a negative finding of real-time PCR registered after a therapy course by zeffix. Hence, the automated and standardized real-time PCR, when used at a multi-field patient-care facility, ensures a better diagnosis of viral hepatitis B.
authors.forename: O Iu
authors.initials: OIu
authors.lastname: Manzeniuk
authors.forename: D A
authors.initials: DA
authors.lastname: Varlamov
authors.forename: O V
authors.initials: OV
authors.lastname: Moskalets
authors.forename: E I
authors.initials: EI
authors.lastname: Prokopenko
authors.forename: M V
authors.initials: MV
authors.lastname: Taraniuk
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D004279:DNA, Viral / Q000097:blood*; D005260:Female; D006509:Hepatitis B / Q000097:blood* / Q000175:diagnosis; D006515:Hepatitis B virus; D006801:Humans; D008297:Male; D016133:Polymerase Chain Reaction / Q000379:methods; D012680:Sensitivity and Specificity
chemical_list: D004279:DNA, Viral