background: beta-thalassemia major is one of the major health problems in our country. many studies have confirmed the fact that, these patients have an increased susceptibility to bacterial infections. objective: in this study, we have assessed the humoral immune system in 68 thalassemic patients by measuring their serum concentration of immunoglobulin g (igg), igm, iga, c3 and c4 in order to ...

Background: Beta-thalassemia major is one of the major health problems in our country. Many studies have confirmed the fact that, these patients have an increased susceptibility to bacterial infections. Objective: In this study, we have assessed the humoral immune system in 68 thalassemic patients by measuring their serum concentration of Immunoglobulin G (IgG), IgM, IgA, C3 and C4 in order to ...

BACKGROUND: Occurrence of resistance against antibioticsand inadequate efficacy of some vaccines necessitates studies ofnatural immunostimulators in aquaculture. Shrimps shell derivedfrom Chitosan can be used as immune stimulators in fish.OBJECTIVES: In this study, the effects of oral administration ofchitosan, derived from shrimp shell, on some immune responsesand disease resistance in Cyprinu...

conclusions acute hev infection shows a pattern of th1-type immune response, and the direct significant positive correlation between the serum level of scd26 and ifn-γ in acute hev infected patients, suggests that the trend of scd26 levels is a valuable marker for predicting hepatic inflammation in hepatitis e. results the results showed a significant difference in ifn-γ and scd26 (p < 0.0001 a...

otitis media with effusion (ome) is very common in pediatric patients. immune reactions in serum and middle ear system play roles in the etiology, pathogenesis and prevention of otitis media. immunologically active antigens interact with immunocompetent cells in the lamina propria of the middle ear to produce a local immune response. in this investigation, 32 sera and 50 middle ear fluid sample...

Background: Several cells of immune system such as regulatory T cells and macrophages secrete transforming growth factor-β (TGF-β) in response to different stimuli. This cytokine has inhibitory effect on immune system and diminished production of this cytokine is associated with autoimmune disorders. Objective: The aim of this study was to evaluate the influence of opium addiction on serum leve...

the immunosuppressive effect of antimacrophage serum (ams) on the primary immune response of mice to sheep red blood cells (srbc) was studied. ams, given before a small dose of antigen, abrogated the immune response. transplantation of normal, galss-adherent macrophages enabled ams-treated animals to respond to srbc, while administration of lymph node lymphocytes did not reveres ams - induced i...