Background: SEN virus (SENV) is the latest virus proposed as a cause of unknown hepatitis cases. Among nine detected genotypes of the virus, genotypes D and H are more frequent in hepatitis cases of unknown origin. The aim of this study was to determine the frequency of SENV-D and SENV-H genotypes in the sera of healthy individuals and hepatitis B and C patients. Methods: Totally, 200 serum sam...

The structure of hepatitis B virus (HBV) nucleocapsids has been revealed in great detail by cryoelectron microscopy. How nucleocapsids interact with surface antigens to form enveloped virions remains unknown. In this study, core mutants with N-terminal additions were created to address two questions: (1) can these mutant core proteins still form nucleocapsids and (2) if so, can the mutant nucle...

The presence of hepatitis B surface (HBsAg) and core (HBcAg) antigens was investigated by immunofluorescence in specimens of liver tissue obtained at necrospy in 107 patients with primary hepatic carcinoma. HBsAg was detected in the cytoplasm of liver cells in 16 cases, and in eight of them the antigen was also found in malignant cells. HBcAg, which was present in the nuclei of liver cells in e...

Using the Staphylococcus aureus absorption method, we have modified a commercial radioimmunoassay kit for the determination of total antibody to hepatitis B core antigen so that we can now determine the predominant globulin species of that antibody. One-hundred percent of acute hepatitis B sera had a predominance of immunoglobulin M antibody to hepatitis B core antigen, whereas immunoglobulin G...

Submit Manuscript | http://medcraveonline.com Abbreviations: 95%CI: 95% Confidence Interval; ANC: Antenatal Care Attendee; aOR: Adjusted Odds; Ratio; cOR: Crude Odds Ratio; HBV: Hepatitis B Virus; HBeAg: Hepatitis B e antigen; HBsAg: Hepatitis B Surface Antigen; Anti-HBc: Hepatitis B Core Antibody; Anti-HBe: Hepatitis Be Antibody; Anti-HB: Hepatitis B Surface Antibody; HIV: Human Immunodeficien...

BACKGROUND Hepatitis B virus (HBV) infection is prevalent in Asian immigrants in the USA. California's Inland Empire region has a population of approximately four million, including an estimated 19,000 first generation Koreans. Our aim was to screen these adult individuals to establish HBV serological diagnoses, educate, and establish linkage to care. METHODS A community-based program was con...

Occult HBV infection of hemodialysis (HD) patients is informative in terms of virus transmission. It may be of clinical importance in HD patients. The aim of this study was to investigate the prevalence of anti-HBc in the HD Patients. Number of 126 patients undergoing hemodialysis were included in this study from main hemodialysis units in Yazd. Hepatitis B surface antigens (HBsAg), hepatitis B...

Submit Manuscript | http://medcraveonline.com Abbreviations: 95%CI: 95% Confidence Interval; ANC: Antenatal Care Attendee; aOR: Adjusted Odds; Ratio; cOR: Crude Odds Ratio; HBV: Hepatitis B Virus; HBeAg: Hepatitis B e antigen; HBsAg: Hepatitis B Surface Antigen; Anti-HBc: Hepatitis B Core Antibody; Anti-HBe: Hepatitis Be Antibody; Anti-HB: Hepatitis B Surface Antibody; HIV: Human Immunodeficien...

The prevalence of antibodies to hepatitis B core antigen in 552 prime blood donors was of 9.4%. The majority (71.2%) has antibodies to hepatitis B surface antigen. The hepatitis B surface antigen was present in 0.7%, all of them antibodies to hepatitis B core antigen positive.

HEPAXPERT is a knowledge-based system that interprets the results of routine serologic tests for infection with hepatitis A and B viruses. The following tests are included: hepatitis A virus anti-bodies (anti-HAV), IgM antibodies to the hepatitis A virus (IgM anti-HAV), hepatitis A virus (HAV in stool, hepatitis B surface antigen (HBsAg) and antibodies (qualitative anti-HBs, quantitative anti-H...