For several decades, carbon fibers have been used for lightweight engineering in aircraft automotive and sports industries, mostly based on high-quality polyacrylonitrile (PAN). We investigated a novel PAN-based precursor fiber (PF) modified with polycyclic aromatic hydrocarbon, namely hexabenzocoronene (HBC), which is expected to improve the thermal conversion process create (CF) enhanced mech...

Two antigen-antibody systems were Out of 42 sera from patients with acute viral hepatitis 33 were positive for HBsAg,all HBsAg positive individuals possessed anti-HBc. From 11 blood donors  sera 8 were positive for HBsAg and 9 were Positive for anti-HBc;2 leprosy sera were tested,both of them were positive for HBsAg and anti-HBc. 5 miscellaneous sam­ples,z·were positive for HBsAg and anti-HBc...

It remains unclear what determines the subcellular localization of hepatitis B virus (HBV) core protein (HBc) and particles. To address this fundamental issue, we have identified four distinct HBc localization signals in the arginine rich domain (ARD) of HBc, using immunofluorescence confocal microscopy and fractionation/Western blot analysis. ARD consists of four tight clustering arginine-rich...

INTRODUCTION Anti-hepatitis B core antibody (Anti-HBc) alone is defined as the presence of anti-HBc in the absence of HBsAg and anti-HBs. The significance of this serological pattern as a predicting factor for occult hepatitis B virus (HBV) infection remains largely unknown. This study aimed to assess the significance of anti-HBc alone in predicting occult HBV infection in high-risk and low-ris...

The presence of antibodies to hepatitis B core antigen (anti-HBc) has a different implication than with anti-HBs. Anti-HBc antibodies do not distinguish between active or previous infection, nor to they indicate immunity. All hepatitis B carriers and all patients who have previously been exposed to hepatitis B will be positive for total anti-HBc. Chronic hepatitis B carriers have circulating an...

A unique characteristic of the hepatitis B virus is the production of a secreted form (precore or HBeAg) of the structural nucleocapsid (core or HBcAg). By using T cell receptor (TCR) transgenic (Tg) and TCR x HBc/HBeAg double- and triple-Tg pairs, we demonstrate that HBeAg elicits T cell tolerance, whereas HBcAg is nontolerogenic in this system. In fact, TCR x HBc double-Tg mice spontaneously ...

Abstract The worldwide distribution of the HBV infection has usually been estimated by prevalence hepatitis B surface antigen (HBsAg) among general population. Total antibodies for core (anti-HBc) are most important diagnostic marker proving prior exposure to HBV. Aim aim this study was determine Hepatitis virus (HBV) Bulgarian Reliable epidemiologic data is needed estimate in order actual burd...

Four-hundred and seventeen patients undergoing open-heart surgery were followed for more than 9 months after transfusion. All 2270 blood units transfused had alanine aminotransferase levels less than or equal to 30 U/l. Blood units positive for antibodies to hepatitis B core antigen (anti-HBc) were more frequently associated with recipient hepatitis non-A, non-B (HNANB) (13.7%) than anti-HBc-ne...

Background: The risk of infection by transfusion-transmitted viruses has been reduced remarkably. However, a zero-risk blood supply is still desirable. The screening for antibody to HBc (anti-HBc) has been shown as an alternative test for the detection of HBV infection. Objective: The main aim of this study was to evaluate HBV infection markers and the potential value of anti-HBc testing of blo...

BACKGROUND We assessed the impact of home-based care (HBC) for HIV+ patients, comparing outcomes between two groups of Zambians receiving antiretroviral therapy (ART) who lived in villages with and without HBC teams. METHODS We conducted a retrospective cohort study using medical charts from Macha Mission Hospital, a hospital providing HIV care in Zambia's rural Southern Province. Date of bir...