Background and Aims: TGF-β is an effective cytokine in the viral replication cycle, which is also highly relevant to the pathogenesis of some viral infections. TGF-β induction by viral proteins is one of the ways to escape the virus from the immune system by inhibiting interferon signaling and other immune system factors.  In recent years, the role of TGF-β and its inhibitor...

background: management of multiple sclerosis (ms) is based on the usage of immunosuppressive and immune-modulating medications. cytokines play an important role in the pathogenesis of ms. objective: to evaluate the effects of rapamycin on the concentrations of th1/th2/th17 serum cytokines in patients with ms. methods: six patients with relapsing remitting ms as a case group and 6 healthy indivi...

background: noradrenaline (na), the principal neurotransmitter released from sympathetic nerve terminals, influences t-cell maturation, not only directly in developing t cells, but also indirectly, by acting on the thymic nonlymphoid cells. in vitro and in vivo studies have demonstrated the anti-proliferative, anti-migratory, antiangiogenic and cytotoxic properties of propranolol, β-ar blocker,...

background:  multiple  sclerosis  (ms) patients permanently confronted  with serious challenges from treatment regimen. developing  a new  questionnaire in ms management, through  evaluation  of patients’ perspectives   and  knowledge   regarding   treatment  will help  to  identify the  sources  of tension, and  to  build  a therapeutic   alliance.   we   purposed   to   describe    ms patient...

patients and methods in total, 98 samples in four groups (hiv-positive and hiv-negative persons with and without oc) were obtained from the oral cavities and cultured on sabouraud’s dextrose agar and chromagar. also blood samples were obtained to assess plasma level of ifn-γ, il-4, il-6 and il-17 using elisa technique. background cell-mediated immunity (cmi) by cd4 + th (t helper)-type cells is...

b ackground: l eishmania is an intracellular parasite infecting humans and many wild and domestic animals. recent studies have suggested an important role for cytotoxic t cells against leishmania . peptide-based vaccines targeting short sequences derived from known immunogenic proteins have been shown to elicit cellular immune responses against disparate pathogens. m ethods: we predicted four h...

Background:The premature termination of high producer clones, which will be killed due to cell proliferation and proteins production antagonism, is one of the basic drawback in recombinant proteins technology. Furtheremore, it is supposed some toxic proteins like interferon which we intended to clone and express, inhibit host cells’ proliferation. So, it is necessary to tightly control IFN-γ pr...

Background: Periodontitis is an inflammatory disease of tooth-supporting tissues. The present study was conducted to evaluate Interleukin-10 (IL-10) and Interferon gamma (IFN-γ) levels in gingival crevicular fluid (GCF) of patients with chronic periodontitis. Materials and Methods: This case-control study was carried out on 60 men including 30 smokers and 30 age-matched non-smokers. The ...