نتایج جستجو برای: occult hepatitis b virus

تعداد نتایج: 1265564  

Journal: :Intervirology 2010
E Veropalumbo A Marrone L Vallefuoco G Perruolo R Orlando F Scordino G Tosone R Zampino B Trani A Genovese G Spadaro C D'Orio G Portella

Hepatitis B surface antigen (HBsAg) is considered the best marker for the diagnosis of hepatitis B virus (HBV) infection. Mutations of the s gene involving amino acid substitutions within the a determinant could affect the sensitivity of diagnostic tests. In the present study, HBsAg mutants were detected in 3 immunocompromised patients, previously found to be HBsAg negative and anti-HBs positiv...

Journal: :Asian Pacific Journal of Tropical Disease 2012

Journal: :Intervirology 2014
Giovanni Raimondo Roberto Filomia Sergio Maimone

Occult hepatitis B virus infection (OBI) is highly prevalent worldwide. In some cases, it is a consequence of infection with variant viruses mutated in the S gene and producing a surface antigen not recognized by diagnostic kits. In most cases, OBI is due to a strong inhibition of hepatitis B virus (HBV) activities exerted by host defense mechanisms. OBI may reactivate in patients undergoing im...

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...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید