abstractbackgroundcontributes substantially to patient morbidity and mortality.in this study we investigatedthe range and distribution of t-lymphocyte. subsets cd3helper/inducer cell,.th ), cd8: severe immunosuppression occurs after large thermal burn and probably+ (t cells) cd4+ (t+ (t suppressor /cytotoxic cells ,ts/c), cd3+cd4thermal injury.+/cd3+cd8+ ratio, cd19+ (b cells) and cd16+ (nk cel...

the immune responses that develop following epstien-barr virus (ebv) infection are complex and involve both humoral and to a greater extent cell-mediated immune mechanisms. to evaluate the immune response, flow cytometric analysis of the peripheral blood of six patients during the acute phase of ebv infection was performed. this analysis revealed a significant increase in the percentages and th...

there is interrelationship between the immune and nervous systems that is accomplished by the molecular mediators. dopamine is one of the most important neurotransmitters. five different dopamine receptor genes (drd1, drd2, drd3, drd4, and drd5) have been recognized and cloned. the expression of the dopamine receptors is well characterized in the brain but little work has been done to examine t...

contact hypersensitivity (chs) mouse model induced by 2, 4-dinitrofluorobenzene (dnfb) is thought to be a t helper 1 (th1)-dominant response and used for investigating anti-inflammatory and immunosuppressive agents. however, it is hardly used for screening large-scale drugs because of the large number of animals and complex mechanisms involved in-vivo. in this study, we focused on whether t lym...

background: premature chromosome condensation (pcc) is a method for interphase chromosome analysis in biodosimetry. this study was performed to verify the usefulness of pcc induced by calyculin a in human peripheral blood lymphocytes (pbl) for biological dosimetry and possible construction of dose-response curve. materials and methods: peripheral blood was obtained from a healthy donor and expo...

background: tonsils and adenoids are involved in both local immunity and immune surveillance for the development of immune defense mechanisms. a number of investigators have found decreased immunoglobulin levels after adenotonsillectomy while others have failed to find significant changes. the effects of adenotonsillectomy on the cellular immunity of children have not been investigated extensiv...

background: modulation of the immune response is an important strategy by which establish­ment and growth of hydatid cyst in the internal organs of human is warranted. induction of apop­tosis in the lymphocytes might be a considerable component. this study was designed to evaluate apoptotic impact of hydatid fluid (hf) on human lymphocytes. methods: human lymphocytes were treated with hydatid f...

background: iron is an essential trace element in cell proliferation. several investigations demonstrate that iron deprivation inhibits cell proliferation. however, the impact of iron on telomerase activity of activated lymphocytes remains unexplained to date. objective: in this study, the effect of iron on the proliferation and telomerase activity of lymphocytes stimulated by phytohemagglutini...

T lymphocytes that are involved in cellular mediated immunity include two types known as TCD8+ (Cytotoxic T lymphocytes) and TCD4+ (helper T lymphocytes). TCD4+ has four main subtypes, including TH1, TH2, TH17, and Treg Lymphocytes.TH17 lymphocytes play a role in defense against microbes that TH1 and TH2 lymphocytes have not the ability to respond to them. The most important cytokines, which ar...

BACKGROUNDS: Seminoma is frequently observed in human and canine testes especially in cryptorchids. Canine and human seminomas are typically associated with leukocytic infiltration. OBJECTIVES: We aimed to identify the type of lymphocytes that infiltrate to seminomas. METHODS: Tumor infiltrating lymphocytes were evaluated by immunohistological techniques in 5 dogs with diffuse seminoma. Routine...