mendelian susceptibility to mycobacterial diseases (msmd) is a rare inheritance syndrome, characterized by a disseminated infection with mycobacterium in children following bcg vaccination at birth. regarding the vaccination program in iran, it may consider as a public health problem. the pathogenesis of msmd is dependent on either insufficient production of ifn-gamma (γ) or inadequate response...

introduction: hepatitis b is a potentially life-threatening infection that causes acute infection and chronic hepatitis with progression to cirrhosis and hepatocellular carcinoma (hcc). interleukin-12 (il12) is responsible for activation of th1 immune responses, leading to possible clearance of hbv infection from the host’s body. the host’s immune-genetic background plays an important role in t...

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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...

Previous studies have shown the central role of interleukin 12 (IL-12) in the development of resistance to Leishmania major infection in C3H mice. We now show that during the innate immune response the lymph node cells of L. major-infected C3H mice upregulate the IL-12 receptor on CD4(+), CD8(+), and B220(+) cells. An increase in the ability of the lymph node cells to bind IL-12 correlates with...