Aims. Relations connecting Gamma Ray Burst quantities can be used to constrain cosmographic parameters of the Hubble law at medium-high redshifts. Methods. We consider a sample of 27 Gamma Ray Bursts to construct the luminosity distance-redshift relation and derive the values of the parameters q 0 , j 0 and s 0. The analysis is compared with other methods present in literature. Results. Gamma R...

Microglia is one of the first innate immune components. These cells account about 5 to 10% of the entire adult brain cells and are activated by trauma. Complex-mediated inflammatory responses occur through cellular and molecular events during and after the traumatic brain injury (TBI). In-lesion area astrocytes, microglia, and damaged neurons begin to secrete cytokines and chemokines. Microglia...

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...

Substance P (SP) regulates interferon-gamma (IFN-gamma) production through interaction with the SP receptor NK1 (SPr) on T cells at sites of inflammation. Using murine schistosomiasis, we evaluated whether SPr expression was subject to immunoregulation. Splenocytes from schistosome-infected mice cultured for < or =18 h did not express SPr, as determined by quantitative polymerase chain reaction...

The aims of the study were to establish the kinetics of the early adaptive response and to determine the minimum adaptive dose of gamma rays capable of inducing this response. The minimum adaptive dose was determined by exposing groups of five BALB/c male mice to an adaptive dose of 0.005 or of 0.02 Gy gamma rays from a 137Cs source and challenge with 1.0 Gy 60 min later. The kinetics of adapti...

Background: Lymphadenitis is the most common complication of BCG vaccination in children. Interferon-gamma (IFN-γ) plays a key role in immune response to Mycobacterial infections. In this study, the relationship of serum levels of IFN-γ and its receptor (CD119) to development of Bacillus Calmette Guerin (BCG) axillary lymphadenopathy was investigated. <em...

The receptor for mouse interferon gamma (IFN-gamma) was purified from detergent-solubilized plasma membranes of EL-4, a thymoma cell line which expresses a high number of receptors on its cell surface. The purification was carried out by immunoaffinity chromatography using an anti-receptor monoclonal antibody. The purified receptor was subjected to NH2-terminal sequence analysis as well as sequ...

The capacity of interferon-gamma to regulate the generation and release of leukotriene B4 (LTB4) from human alveolar macrophages ofnormal nonsmoking individuals was evaluated. When alveolar macrophages were incubated for 60 min with heat aggregated IgG (HAIgG), they generated and released 5.7±1.7 ng ofLT B4 per 106 cells compared to 1.9±0.4 ng from cells incubated with buffer alone, P = 0.02. W...