DNA, Viral

Publication Title: 
Phytotherapy research: PTR

The antiviral effects of aqueous extracts of Terminalis chebula Retz., Sanguisorba officinalis L., Rubus coreanus Miq. and Rheum palmatum L. were examined by a cell culture system using a hepatitis B virus (HBV) producing cell line, HepG2 2.2.15. The extracts were assayed for the inhibition of HBV multiplication by measurement of HBV DNA and surface antigen (HBsAg) levels in the extracellular medium of HepG2 2.2.15 cells after an 8-day treatment.

Author(s): 
Kim, T. G.
Kang, S. Y.
Jung, K. K.
Kang, J. H.
Lee, E.
Han, H. M.
Kim, S. H.
Publication Title: 
Oncogene

This study addresses the question of whether loss of p16INK4 expression contributes to the immortalization of human cells. In vitro immortalization usually proceeds through two phases. In the first phase (lifespan extension), cells continue proliferating and their telomeres continue shortening beyond the point at which normal cells become senescent. In the second phase (immortalization), the cells activate a telomere maintenance mechanism and acquire an unlimited proliferative potential.

Author(s): 
Noble, J. R.
Rogan, E. M.
Neumann, A. A.
Maclean, K.
Bryan, T. M.
Reddel, R. R.
Publication Title: 
Methods in Molecular Biology (Clifton, N.J.)

Chronic hepatitis B remains a substantial public health burden affecting approximately 350 million people worldwide, causing cirrhosis and liver cancer, and about 1 million people die each year from hepatitis B and its complications. Hepatitis B is caused by hepatitis B virus (HBV) infection. As an essential component of the viral life cycle, HBV covalently closed circular DNA (cccDNA) is synthesized and maintained at low copy numbers in the nucleus of infected hepatocytes, and serves as the transcription template for all viral RNAs.

Author(s): 
Cai, Dawei
Nie, Hui
Yan, Ran
Guo, Ju-Tao
Block, Timothy M.
Guo, Haitao
Publication Title: 
Indian Journal of Pathology & Microbiology

BACKGROUND: Patients with thalassemia major are largely transfusion dependent and are thus exposed to a variety of risks such as transmission of infectious diseases, iron overload and alloimmunization. This study was performed to determine the prevalence of human immune deficiency virus (HIV), hepatitis B virus (HBV), hepatitis C virus (HCV) and red cell antibodies among multiple-transfused thalassemic patients in and around the national capital region.

Author(s): 
Makroo, Raj Nath
Arora, Jatinder Singh
Chowdhry, Mohit
Bhatia, Aakanksha
Thakur, Uday Kumar
Minimol, Antony
Publication Title: 
Journal of Molecular Biology
Author(s): 
Blackburn, E. H.
Publication Title: 
Journal of Molecular Biology
Author(s): 
Air, G. M.
Blackburn, E. H.
Coulson, A. R.
Galibert, F.
Sanger, F.
Sedat, J. W.
Ziff, E. B.
Publication Title: 
Journal of Molecular Biology
Author(s): 
Blackburn, E. H.
Publication Title: 
Journal of Molecular Biology
Author(s): 
Air, G. M.
Blackburn, E. H.
Coulson, A. R.
Galibert, F.
Sanger, F.
Sedat, J. W.
Ziff, E. B.
Publication Title: 
Journal of Molecular Biology
Author(s): 
Blackburn, E. H.
Publication Title: 
PLoS neglected tropical diseases

BACKGROUND: An unexpectedly high seroprevalence and pathogenic potential of human parvovirus B19 (B19V) have been observed in certain malaria-endemic countries in parallel with local use of chloroquine (CQ) as first-line treatment for malaria. The aims of this study were to assess the effect of CQ and other common antimalarial drugs on B19V infection in vitro and the possible epidemiological consequences for children from Papua New Guinea (PNG).

Author(s): 
Bönsch, Claudia
Kempf, Christoph
Mueller, Ivo
Manning, Laurens
Laman, Moses
Davis, Timothy M. E.
Ros, Carlos

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