indolemine 2, 3-dioxygenase (ido) is a cytosolic monomeric hemoprotein enzyme that catalyses tryptophan, the least available essential amino acid in the human body, to n-formylkynurenine, which in turn rapidly degrades to give kynurenine. ido is expressed in different tissues, especially and prominently in some subsets of antigen presenting cells (apcs) of lymphoid organs and also in the placen...

conclusions in conclusion, ctp-hbcag18-27-tapasin could reduce apoptosis of cd8+ t cells, increase the percentages of ifn-γ+ cd8α+ t cells, and elicit cell-mediated immunity in hla-a2 transgenic mice; these processes were associated with activation of the pi3k/akt signaling pathway. results the results showed that ctp-hbcag18-27-tapasin significantly increased the percentages of ifn-γ+ cd8α+ t ...

background: about 83% of patients with breast cancer (bc) undergo radiation therapy. these patients show various degrees of mild to acute reactions during and after the completion of treatment.the aim of this study was to compare inherent radiosensitivity of gamma-irradiated g0-lymphocytes between bc patients and normal individuals using cytokinesis blocked micronucleous assay. methods: three t...

background: polysaccharides have long been used as immune-modulators in various pathologic conditions including inflammation and solid malignancies. objective: to evaluate the effects of zymosan and betaglucan on cytotoxic reactions in an effectortarget conjugate system. methods: blood was obtained from 20 healthy subjects; purified mononuclear leukocytes (monocytes and lymphocytes) were extrac...

The aim of this study was to evaluate the immune system and lymphocyte function in 41 Iranian β-thalassemic patients and 50 controls, ages ranging from 2 to 18 years. The patients consisted of 20 splenectomized and 21 non-splenectomized patients. They were treated with Desferal, and had received repeated blood transfusion. Laboratory investigations included measurement of total T lymphocyt...

Purpose of the study . To features local distribution populations immune system cells in patients with non-invasive muscular bladder cancer various degrees malignancy. Materials and methods The included 51 newly diagnosed non-muscle-invasive (papillary urothelial carcinoma) who received complex treatment follow-up after 9 months at oncourological department National Medical Research Center Onco...

Background and Aim: Intrahepatic cholestasis of pregnancy (ICP) is associated with raised liver enzymes, pruritus elevated fasting total bile acids (TBA) may lead to adverse perinatal outcomes such as preterm birth, meconium-stained liquor, stillbirth, foetal growth restriction etc. The change in inflammatory profile ICP association TBA not known. Methods: Patients (aged >21) confirmed diagnosi...

background: radio-adaptive response and bystander effects are known phenomena occurring in cells following exposure to ionizing radiation (ir). in this study we examined possible radio-adaptation of lymphocytes following bystander effects induced by cho-k1 cells. materials and methods: whole blood and cho-k1 cells were cultured in rpmi-1640 complete medium. cells were separately irradiated with...

Chlorpyrifos (CP), an acetylcholinesterase (AChE) inhibitor, is used throughout the world as an insecticide in agriculture and an eradicating agent for termites around homes. In this present study, CP is considered as an oxidative agent which we examine the protective role of zinc oxide nanoparticles (ZnO NPs) in CP-treated lymphocytes of human. Lymphocytes isolated by Ficoll and exposed to 75 ...

Backgrounds: It remains unclear whether radiation-induced haemorrhage in the spleen causes iron accumulation, and subsequently, ferroptosis in splenic lymphocytes. In this study, we investigated the occurrence of ferroptosis in splenic lymphocytes of gamma-irradiated mice. Materials and Methods: Mice were subjected to gamma radiation from a 137Cs source. Iron, Ferroportin 1, and iron regulatory...