نتایج جستجو برای: hepatitis b virus mutation

تعداد نتایج: 1498097  

Journal: :The Journal of antimicrobial chemotherapy 2007
H L Young S A Ballard P Roffey M L Grayson

virus polymerase mutation rtV173L is selected during lamivudine therapy and enhances viral replication in vitro. J Virol 2003; 77: 11833–41. 4. Schildgen O, Sirma H, Funk A et al. Variant of hepatitis B virus with primary resistance to adefovir. N Engl J Med 2006; 354: 1807–12. 5. Aye TT, Bartholomeusz A, Shaw T et al. Hepatitis B virus polymerase mutations during antiviral therapy in a patient...

2015
Jeyanthi Suppiah Rozainanee Mohd Zain Norazlah Bahari Salbiah Haji Nawi Zainah Saat

BACKGROUND Precore stop codon (G1896A) mutation is one of the commonest mutations found in patients with chronic hepatitis B. However, over the years, this mutation was not reported much in Malaysia. OBJECTIVES We therefore investigated the presence of G1896A mutation in Malaysian population and its association with HBeAg status, clinical stage, hepatitis B virus (HBV) genotype and e-seroconv...

Journal: :iranian journal of virology 0
s rostami department of biology, faculty of sciences, ferdowsi university of mashhad, mashhad, iran mt shakeri department of biostatistics, public health school, mashhad university of medical sciences, mashhad, iran m ghayour-mobarhan biochemistry of nutritional research center, faculty of medicine, mashhad university of medical sciences, mashhad, iran h nomani microbiology and virology research center, mashhad university of medical sciences, mashhad, iran s sepahi department of chemistry, faculty of sciences, ferdowsi university of mashhad, mashhad, iran s gerayli department of biology, faculty of sciences, ferdowsi university of mashhad, mashhad, iran

background and aims: many studies have provided evidence for the role of hepatitis b and c viruses in the development of liver cancer. although the routine treatment is available for both conditions, no definite guideline is available to treat patients dually infected with hbv and hcv. this study was performed to determine the frequency of hbv/hcv-coinfection in mashhad, north-east of iran. mat...

Journal: :hepatitis monthly 0
nour al-hanafi department of biochemistry and microbiology, faculty of pharmacy, damascus university, damascus, syria; department of biochemistry and microbiology, faculty of pharmacy, damascus university, damascus, syria. tel: +963-932990058, fax: +963-112139441 fawza monem department of biochemistry and microbiology, faculty of pharmacy, damascus university, damascus, syria; clinical laboratories department, al-assad hospital, damascus university, damascus, syria

conclusions we introduced an anti-hbsp antibodies elisa, designed for locally circulating hbv strains. correlation observed of anti-hbsp with liver fibrosis staging regardless of viral replication and liver inflammation suggests anti-hbsp antibodies as possible indicator for hbv-associated liver fibrosis. results seven out of eighty (9%) chb patients were positive for anti-hbsp antibodies. mean...

Journal: :jundishapur journal of microbiology 0
marjan shaheli department of biology, arsanjan branch, islamic azad university, arsanjan, ir iran ramin yaghobi shiraz transplant research center, shiraz university of medical sciences, shiraz, ir iran; shiraz transplant research center, shiraz university of medical sciences, shiraz, ir iran. tel: +98-7116476331, fax: +98-7116476331 abbasali rezaeian department of microbiology, jahrom branch, islamic azad university, jahrom, ir iran mahdiyar iravani saadi department of biology, arsanjan branch, islamic azad university, arsanjan, ir iran mani ramzi hematology research center and bone marrow transplant unit, shiraz university of medical sciences, shiraz, ir iran

results the tt virus infection was significantly found in 40 of 95 (42.1%) and 12 of 100 (12%) patients with leukemia and controls, respectively. the hbs-ag and hcv-ab were detected in 27 of 95 (28.4%) and 18 of 69 (26.1%) patients with leukemia but were not found in the controls. active cmv infection was also found in 11 of 69 (16%) patients and none of the controls. significant co-infection o...

Journal: :hepatitis monthly 0
reza rezaee ministry of health and medical education, deputy of curative affairs, budget administration, tehran, ir iran mansour poorebrahim department of medical biotechnology, school of advanced technologies in medicine, tehran university of medical sciences, tehran, ir iran saeideh najafi department of microbiology, tonekabon branch, islamic azad university, tonekabon, mazandaran, ir iran solmaz sadeghi department of medical biotechnology, school of advanced technologies in medicine, tehran university of medical sciences, tehran, ir iran alieh pourdast department of infectious diseases, imam khomeini hospital complex, tehran university of medical sciences, tehran, ir iran seyed moayed alavian middle east liver diseases (meld) center, tehran, ir iran; baqiyatallah research center for gastroenterology and liver diseases, baqiyatallah university of medical sciences, tehran, ir iran

conclusions these data will be beneficial for designing more advanced antibodies for the recognition of the hbsag in diagnostics. in addition, the results of this study may assist in the design or development of more effective hepatitis b vaccines. results the g145r mutation causes a considerable reduction in the immunogenic activity of the hbsag through a conformational change in the hbsag ant...

N Valizadeh, Y Rezaei,

Literature review shows that hepatitis C infection may increase the risk of non-hodgkin lymphoma. Reactivation of hepatitis B infection has been reported in patients with hairy cell leukemia after chemotherapy and/or splenectomy. We present hepatitis B surface (HBs) antigenemia and concurrent hepatitis C virus (HCV) seropositivity in a case of hairy cell leukemia. Key Words: Hairy cell leukemi...

Background Infants of diabetic mothers (IDMs) have significantly greater risk for spontaneous abortion, stillbirth, congenital malformations and perinatal mortality and morbidity but whether maternal DM affects the neonatal innate immune system is unknown. We aimed to assess the immune response of infants of diabetic mothers (IDMs) with non-gestational DM for Hepatitis B vaccine and to compare ...

Journal: :iranian red crescent medical journal 0
mohammad taghi shakeri department of biostatistics, public health school, mashhad university of medical sciences, mashhad, ir iran bahareh foghanian microbiology and virology research center, mashhad university of medical sciences, mashhad, ir iran hosein nomani microbiology and virology research center, mashhad university of medical sciences, mashhad, ir iran majid ghayour-mobarhan biochemistry of nutritional research center, faculty of medicine, mashhad university of medical sciences, mashhad, ir iran maryam sadat nabavinia department of biotechnology, school of pharmacy, mashhad university of medical sciences, mashhad, ir iran sina rostami department of biology, faculty of sciences, ferdowsi university of mashhad, mashhad, ir iran

results patients’ age ranged from 15 to 65 years (mean = 35.54 ± 14.85). thirty four (1.0%) of the subjects were positive for hbsag, of whom, 2.9 % (1 of 34 cases) were also positive in pcr-based screening. elisa tests for hbeag, hbeab, and hbcab igm were positive in one (2.9 %), 27 (79.4%) and one (2.9 %) cases, respectively. conclusions according to our results, hbsag was positive in 0.53 of ...

حاجی کاظمی, افتخارالسادات,

One of the most serious kinds of hepatitis is hepatitis B. This condition is more common than AIDS, and is 100 time more contagious. In Iran the most common cause of acute and chronic hepatitis, liver cirrhosis, and also hepatocellar carcinoma in adults, is hepatitis B. more than two billion people are infected and more than 350 million of individuals are carriers of this virus in the entire wo...

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