The regulation of gastric acid secretion is a complex system, which has been elucidated over a number of years. The significance of the primary role of histamine as a stimulant of the parietal cell was proven conclusively by the demonstration of the efficacy of H2-receptor blockers [1]. The involvement of the vagal and neural system, primarily via muscarinic receptors, appears important, but it...

Several laboratories are pursuing the synthesis of cellular systems from different directions, including those that begin with simple chemicals to those that exploit existing cells. The methods that begin with nonliving components tend to focus on mimicking specific features of life, such as genomic replication, protein synthesis, sensory systems, and compartment formation, growth, and division...

  Introduction: Radiation Induced Bystander Effect (RIBE) which cause radiation effects in non-irradiated cells, has challenged the principle according to which radiation traversal through the nucleus of a cell is necessary for producing biological responses. What is the mechanism of this phenomenon? To have a better understanding of this rather ambiguous concept substantial number of original ...

stem/progenitor cell based therapeutic approach in our daily routine clinical practice, has been elusive dream in medical sciences and improvement of stem cell homing as one of major challenges in cell therapy programs, has been considered a promising milestone. it has been proved that stem/progenitor cells exhibit a homing response to injured tissues/organs, mediated by interactions of chemoki...

introduction: cell culture is a process in which the cells ware isolated from original tissue, dispersed in liquid media and then placed in culture plate where the cells adhere together and propagate. today, this method is used for assessment of cell toxicity, its mechanisms and effect of different compounds on intracellular components. methods: clonogenic assay was used for assessment of cell ...

Background: Non-Hodgkin’s lymphoma (NHLs) is known as a heterogeneous group of malignant lymphoproliferative disorders. NHLs are classified into B cell and T cell types. Immunophenotypical assessment of the biopsy specimens can help diagnose NHLs.    Methods: In this study, 77 patients with B cell and T cell lymphoma were selected from Shahid Sadoghi hospital during 2010 to 2...