Background and Objective: Apoptosis is a form of programmed cell death and oxidative stress is one of the factors that lead to apoptosis. Ghrelin is a 28 amino acid peptide and its antiapoptotic effects have been shown previously. The aim of this study was to evaluate the effect of ghrelin on cell survival and apoptosis of rat bone marrow mesenchymal stem cells (BMSCs). Materials and Methods: ...

Background and purpose: Umbilical cord blood (UCB) is a source of Hematopoietic stem cells (HSCs) and has received a lot of attention due to its availability, renewal capacity, proliferation rate, and differentiation potential. The main limitation of using these cells is their low quantity in one unite of UCB. To overcome this, HSCs co-culturing with UCB derived mesenchymal cells (MSCs) is a pr...

employees always concern about losing their job , or in other word , losing their income resources. for this purpose, every government requires strong system for covering these concerns. the unemployment insurance (ui) program’s can be used for achieving this goal. in this thesis, we price ui based on the insurance history of employee and the duration of being unemployed. we use the weibull dis...

the study of air infiltration into the buildings is important from several perspectives that may be noted to energy and design of hvac systems, indoor air quality and thermal comfort and design of smoke control systems. given the importance of this issue, an experimental and numerical study of air infiltration through conventional doors and windows has been explored in iran. to this end, at fir...

Purpose: To evaluate the effects of lithium chloride on MSCs in vitro expansion rate. Materials and Methods: In this experimental study, bone marrow from 8 rats was plated at 5×105- cells/cm2 in the presence of 1,2,5,7 and 10 mM Lithium chloride and expanded through 3 passages. Twelve days after initiatial culture, the cells of different groups were stained with crystal violet in order to compa...