Results 311 to 320 of about 501,321 (365)

Hepatitis B virus immunopathogenesis.

Annual Review of Immunology, 1995
Approximately 5% of the world population is infected by the hepatitis B virus (HBV) that causes a necroinflammatory liver disease of variable duration and severity.
F. Chisari, C. Ferrari
semanticscholar   +1 more source

Hepatitis B e Antigen and Infectivity of Hepatitis B Virus

Journal of Infectious Diseases, 1977
For confirmation of the difference in the infectivity of hepatitis B surface antigen (HBS Ag)-positive serum according to differences in the e antigen system, four chimpanzees were inoculated with serum positive for hepatitis B e antigen (HBe Ag), and three chimpanzees were inoculated with serum positive for antibody to HBe Ag (anti-HBe).
Toshio Shikata, Toshitsugu Oda, M. Imai, T. Uzawa, H. Suzuki, Kenji Abe, Makoto Mayumi, Y. Moritsugu, Tsutomu Karasawa   +8 more
openaire   +3 more sources

Detection of virus antigens: Hepatitis B antigen

Metabolism, 1973
Abstract Hepatitis B virus is the infectious agent that causes hepatitis of the long incubation variety and frequently is transmitted by blood transfusions. Hepatitis B antigen (HB Ag, Australia antigen) is an immunologic marker of hepatitis B virus and is found in serum of patients with acute hepatitis and in chronic carriers.
openaire   +3 more sources

Hepatitis B surface antigen in late hepatitis B infection

Journal of Medical Virology, 2014
Hepatitis B surface antigen (HBsAg) levels are used to evaluate and monitor clinical phases of chronic hepatitis B infection but their clinical significance is unclear in the late complications, cirrhosis of the liver and hepatocellular carcinoma. This study aimed to evaluate HBsAg levels across the whole natural history of hepatitis B virus infection,
Jing Dong, Yinlian Wu, Yueyong Zhu, Da-Wu Zeng, Qian Huang, Jia-ji Jiang, Yu-Rui Liu, Jie-Min Zhang   +7 more
openaire   +3 more sources

Comparison of hepatitis B surface antigen and e antigen in predicting liver histology in hepatitis B e antigen-positive chronic hepatitis B patients

Hepatology International, 2014
The purpose of this study was to determine the relationship between hepatitis B e antigen (HBeAg) and hepatitis B surface antigen (HBsAg) levels and liver histology in HBeAg-positive patients with chronic hepatitis B virus (CHB) infection.Serum HBsAg and HBeAg levels were analyzed, and liver biopsies were obtained from 203 HBeAg-positive CHB patients ...
Mei Juan Cheng, Guo Qin Ruo, Hong Wang, Yin Zhou, Ming Shan Wang, Rong Yan   +5 more
openaire   +3 more sources

Semen and Hepatitis B Antigen

Annals of Internal Medicine, 1974
Excerpt To the editor: The possibility of sexual transmission of type B hepatitis has been raised by several recent articles (1-3).
Lawrence F. Johnson, Ronald L. Van Heertum, Melvin L. Butler   +2 more
openaire   +2 more sources

Immunobiology and pathogenesis of hepatocellular injury in hepatitis B virus transgenic mice.

Science, 1990
The role of the immune response to hepatitis B virus (HBV)-encoded antigens in the pathogenesis of liver cell injury has not been defined because of the absence of appropriate experimental models.
T. Moriyama, S. Guilhot, K. Klopchin, B. Moss, C. Pinkert, R. Palmiter, R. Brinster, O. Kanagawa, F. Chisari   +8 more
semanticscholar   +1 more source

Hepatitis B antigen ??? an incomplete history

The American Journal of the Medical Sciences, 1975
Hepatitis B virus still cannot be grown in an in vitro system; therefore, research into hepatitis B antigen (HB Ag) is limited to laboratory methods such as serology, electron microscopy, and biochemistry. These have established the presence of two distinct antigenic components of HB Ag, that associated with the small forms and the outer covering of ...
June D. Almeida, A. P. Waterson
openaire   +3 more sources

Biology of hepatitis B virus.

Science, 1981
Immunochemical investigations of the viral antigens and molecular characterization of the viral DNA have elucidated the nature of the hepatitis B virus infection underlying acute, chronic, and oncogenic disorders of the liver in man.
P. Tiollais, P. Charnay, G. Vyas
semanticscholar   +1 more source

Antibody to hepatitis B core antigen

The American Journal of the Medical Sciences, 1975
Two distinct antigen-antibody systems are associated with the hepatitis B virus (HBV): hepatitis B surface antigen (HBs Ag) and antibody (anti-HBs) and the more recently described hepatitis B core antigen (HBc Ag) and antibody (anti-HBc). Testing of serial serum samples from patients with type B hepatitis demonstrates the regular occurrence of anti-HBc
J H Hoffnagle, Lewellys F. Barker, R J Gerety   +2 more
openaire   +3 more sources