we have reviewed the medical records of 40 patients with disseminated (bacille calmette-guerin) bcg from 1996 to 1999 in the immunology department of the children hospital, medical center, tehran university. these patients are divided in to 3 groups: 1. patients who had disseminated (bacille calmette-guerin) bcg after vaccination and their diagnosis was chronic granulomatous disease. 2. patient...

background and aims: chronic hbv infection is one of the most common viral infections in worldwide which many factors such as genetic factors are involved in pathogenesis of disease. gamma interferon (ifn-γ) and its receptor (infgr) play a critical role in the immune response to hbv infection. single nucleotide polymorphisms (snps) are effective on level of gene expression, the aim of this stud...

Introduction: Interferon beta is one of the members of type I interferons. Creating R27T and V101F mutations is one of the important researches performed to improve function, decrease immunogenicity, increase expression and increase half-life of interferon beta. In this study, the effects of R27T and V101F mutations on interferon beta binding to interferon receptors were studied by molecular do...

Introduction: Interferon beta is one of the members of type I interferons. Creating R27T and V101F mutations is one of the important researches performed to improve function, decrease immunogenicity, increase expression and increase half-life of interferon beta. In this study, the effects of R27T and V101F mutations on interferon beta binding to interferon receptors were studied by molecular do...

it is now well documented that interferon gamma (ifn-γ) is the indispensable cytokine for inducing protective immunity against experimental and human cutaneous leishmaniaisis. the importance of ifn-γ receptor (ifn-γr) has also been studied. in the present study, we made attempts to find out whether l. major infection is able to alter the expression of ifn-γr in vivo. in addition, we studied the...

polymorphisms in the β subunit of the high affinity receptor for ige (fcεriβ) and interferon-γ (ifn-γ) genes may influence the risk of asthma. however, the results in asian population are still debatable. we performed a meta-analysis to ascertain the association between the fcεriβ e237g, fcεriβ -109c/t, and ifn-γ 874t/a polymorphisms and asthma in an asian population. databases including pubmed...

background macrophages play critical roles in innate immune response in the liver. whether macrophages participate in liver innate immunity against hcv replication is poorly understood objectives the aim of this study was to investigate the role of macrophages in liver innate immunity against hcv replication. conclusions macrophages may play an important role in liver innate immunity against hc...

conclusions these findings indicated the association of the hbsag titer and serum ifnar2 in hbsag clearance in hepatitis b virus- infected patients. in consequence, immune mechanisms related to ifn-α/β signaling might be responsible in chb outcome. background loss of hepatitis b surface antigen (hbsag) in chronic hepatitis b (chb) infection is a favorable outcome. type i interferon (ifni) has a...

background chronic hepatitis b virus (hbv) infection is a multifactorial disease that can result in serious clinical complications. host genetic background especially the genes that encode immunologic factors like inf-γ and its receptor (ifn-γ r) are critical in the pathogenesis of infection. materials and methods genomic dna from peripheral blood samples of 200 chronically hbv infected patient...