نتایج جستجو برای: hbsab
تعداد نتایج: 240 فیلتر نتایج به سال:
Rituximab is a monoclonal antibody that targets B-lymphocytes, and it is widely used to treat non-Hodgkin's lymphoma. However, its use has been implicated in HBV reactivation that's related with the immunosuppressive effects of rituximab. Although the majority of reactivations occur in hepatitis B carriers, a few cases of reactivation have been reported in HBsAg negative patients. However, reac...
We determined the seroprevalence of hepatitis B in Nahavand in a sample of 1824 subjects > 5 years in 2002. Face-to-face interviews were conducted and blood samples taken. The association between risk factor and hepatitis B was assessed using logistic regression. The prevalence of HBsAg positive cases was 2.3%, and HBcAb and HBsAb were isolated in 7.8% and 11.6% of the participants respectively...
Background: Regarding the availability of an effective vaccine against hepatitis B virus, global vaccination is the best cost-effective strategy to prevent HBV infection. However, some people may not respond to the vaccine or the titer of antibody decreases by time. Therefore, the present study aimed to determine the frequency of anti-HBs antibody (anti-HBsAb), among university students in Fa...
بررسی تیتر hbsab در اعضای هیأت علمی، دستیاران و دانشجویان دانشکده دندانپزشکی دانشگاه علوم پزشکی تهران پس از سه دوره واکسیناسیون در سال 81-83 دکتر زهرا تهیدست*- دکتر زهرا فراهانی** - دکتر غلامرضا سلمانی** *- دانشیار گروه آموزشی تشخیص و بیماریهای دهان دانشکده دندانپزشکی و مرکز تحقیقات دندانپزشکی دانشگاه علوم پزشکی تهران. **- دندانپزشک. چکیده زمینه و هدف: با توجه به درصد بالای شیوع عفونت هپاتیت b ...
BACKGROUND About ninety percent of immunocompetent adults recover from hepatitis B virus (HBV) infection within 6 months after transmission. The infection is considered to be terminated if the antibodies (HBsAb) to the hepatitis B surface antigen (HBsAg) become detectable and the HBsAg and Hepatitis B virus DNA (HBV DNA,) are no longer perceptible. After recovery from an acute infection, the de...
BACKGROUND The aim of this study was to investigate the hepatitis B virus (HBV) infection rate in systemic lupus erythematosus (SLE) patients in China, and to determine the age and sex distribution. MATERIAL AND METHODS A total of 3981 SLE patients diagnosed in The First Affiliated Hospital of Sun Yat-sen University from January 1996 to December 2011 were retrospectively investigated for eval...
The objective of this study was to determine long-term immunity to hepatitis B virus (HBV) in a cohort of adolescents who received plasma-derived HBV vaccine in 1989 and 1990 in a remote Australian Aboriginal community. This was done using a serological survey; primary outcome measures were cut-off titres of HBsAb, and the presence of HBcAb and/or HBsAg. Of 37 adolescents in the cohort, 4 (11%)...
PURPOSE The use of hepatitis B core antibody (HBcAb)-positive grafts is increasing, especially where hepatitis B is endemic. However, this remains controversial because of the risk of development of de novo HBV infection. METHODS We collected information obtained between January 2000 and December 2012 and retrospectively analyzed data on 187 HBsAg-negative donors and recipients were analyzed ...
With interest, we read the paper by Pereira and others 1 and would like to take this opportunity to comment on the accuracy of hepatitis B serosurveys according to the current knowledge of the biology and natural history of the hepatitis B virus (HBV). Although the presence of HBsAb has classically been thought to preclude the possibility of active HBV infection, studies in recent years have su...
The risk of contracting HBV by health care workers (HCW) is four-times greater than that of general adult population. Studies have demonstrated that vaccine-induced protection persists at least 11 years. High risk groups such as HCWs should be monitored and receive a booster vaccination if their anti-HBsAb levels decrease below 10 mIU/mL. In view of the above this study was undertaken to assess...
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