background : most diagnostic tests for biliary atresia (ba) are invasive. this study evaluates the sensitivity and specificity of serum  tumor necrosis factor-α (tnf-α) for diagnosing extra hepatic biliary duct atresia (ehba) in infants. materials and methods : infants with cholestasis who were admitted to children′s medical center hospital were evaluated. a total of 50 infants (20 with ehba an...

background: tumor necrosis factor alpha (tnf-α) is a primary mediator of immune regulation and might be required in the early stages of dc development from cd34+ cells. however, details of optimal timing of exposure to tnf-α in dc development process in monocytes or non-purified hematopoitic cells are still lacking and clear benefits of this approach to the development of dcs remain to be valid...

background: herbal medicines have been used since ancient times for treatment of a range of diseases and have represented stimulatory effects on the function of innate immunity. objective: to evaluate the effects of zataria multiflora (z. multiflora) on the function of innate immunity including phagocytic activity and tnf-α secretion in animal model. methods: eight balb/c mice were divided into...

objective(s): acquisition of tnf-α resistance plays role in the onset and growth of malignant tumors. previous studies have demonstrated that mcf-7 cell line and its doxorubicin resistant variant mcf-7/adr are resistant against the cytotoxic effects of tnf-α. in this study, we investigated the role of akt activation in resistance of mcf-7 and mcf-7/adr against tnf-α cytotoxicity. materials and ...