نتایج جستجو برای: blood cells
تعداد نتایج: 1919761 فیلتر نتایج به سال:
Background and Objective: The pyocyanine pigment in Pseudomonas aeruginosa stimulates blood cells to secrete IL-2. IL-2 cytokine is an activator of cytotoxic T cells and natural killer cells. These cells destroy the target cells of patients with cancer. This study aimed to evaluate the effects of pyocyanine on the IL-2 secretion from peripheral blood mononuclear cells (PBMCs) in patients with b...
Introduction: Immunological processes play an important role in recurrent spontaneous abortion(RSA). According to studies, T lymphocytes and natural killer cells(NK cells) are two effective cell groups in RSA. The aim of this study was to study the percentage and absolute number of natural killer(NK) cells in women with RSA of unknown etiology. Methods: A total of 24 women with history of recu...
Introduction: Regarding the increasing use of silicon dioxide nanoparticles in medical biotechnology and probable side effects and diseases resulting from its usage, this study was performed to assess the toxic effects of different concentrations of SiO2 nanoparticles on human blood mononuclear leukocytes using the MTT assay. Methods: In this laboratory trial study, we prepared suspensions of...
Introduction: The extended use of nanoparticles has increased and public concern about possible adverse health effects of exposure to this substance is growing. This study was conducted to assess the cytotoxic effects of different concentrations of MgO nanoparticles on human blood mononuclear cells. Methods: In this laboratory trial study, suspensions of blood mononuclear cells were prepared f...
background: diabetes is a major public health problem. the development of new therapies that are able to improve glycemia management and even to cure diabetes is of great interest. in this study, protective effects of sodium tungstate against stz-induced beta-cell damages were investigated. methods: sixty rats were divided into six groups: control, diabetic, sodium tungstate treated diabetic ra...
background: it is not clear whether the use of volumetric peristaltic infusion pumps, affect the quality of the erythrocytes during packed cell transfusion or not. in the present study in vitro quality of red blood cells was assessed after using this type of infusion pumps in a prospective study. materials and methods: in this study 60 units of packed red cells were examined before and after pa...
stem cell therapy is a powerful technique for the treatment of a number of diseases. stem cells are derived from different tissue sources, the most important of which are the bone marrow (bm), umbilical cord (uc) blood and liver. human uc mesenchymal stem cells (huc-mscs) are multipotent, non-hematopoietic stem cells that have the ability to self-renew and differentiate into other cells and tis...
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