نتایج جستجو برای: g csf mpo pge2
تعداد نتایج: 471343 فیلتر نتایج به سال:
Myelopoietins (MPOs) constitute a family of engineered, chimeric molecules that bind and activate the IL-3 and G-CSF receptors on hematopoietic cells. This study investigated the in vivo hematopoietic response of rhesus monkeys administered MPO after radiation-induced myelosuppression. Animals were total body irradiated (TBI) in 2 series, with biologically equivalent doses consisting of either ...
The effects of tumor necrosis factor (TNF) on the regulation of macrophage-specific colony stimulating factor (CSF-1) gene expression have been studied in HL-60 cells during monocytic differentiation. CSF-1 transcripts were undetectable in uninduced HL-60 cells, reached maximal levels by 3 h of exposure to TNF, and returned to that of control cells by 24 h. Transcriptional run-on analysis demon...
Prostaglandin (PGE2 and PGI2) synthesis was determined in the cerebrospinal fluid (CSF) and serum of 19 hypoxic neonates at the age of 5-96 hours by using Enzyme Linked Immunosorbent Assay (ELISA) method. Control group consisted of 8 children of the same age whose samples were taken due to initial suspicion of neonatal meningitis. The prostaglandin concentrations in CSF were correlated with ini...
Internal tandem duplication (ITD) mutations of the juxtamembrane domain-coding sequence of the FLT3 gene are found in up to 34% of patients with acute myeloid leukemia (AML) and are associated with a poor prognosis. FLT3/ITDs result in constitutive activation of the tyrosine kinase domain and transform growth factor-dependent cell lines. FLT3 activation leads to antiapoptotic and proliferative ...
BACKGROUND Hyperbaric oxygen (HBO) has been suggested to be beneficial in inflammatory bowel disease but the mechanisms responsible for its therapeutic effects have not been elucidated. AIM To assess the effect of HBO treatment on colonic damage in two models of experimental colitis, and to examine whether this effect is mediated by modulation of NO synthesis. METHODS Colitis was induced by...
The stimulation of granulocyte macrophage-colony stimulating factor (GM-CSF) by interleukin-1 (IL-1) has been shown to be counteracted in different mesenchymal cell systems by cyclic adenosine monophosphate (cAMP) agonists. The aim of this study was the evaluation of different cAMP agonists on GM-CSF expression in human bone marrow stromal cells. Incubation of secondary haematopoietic progenito...
جمع آوری سلول های بنیادی خونساز از خون محیطی امروزه به عنوان راهکار مناسبی برای پیوند مغز استخوان استفاده می شود. خروج این سلول ها از مغز استخوان به صورت شبکه ای پیچیده و هماهنگ شده است که عوامل مختلفی می تواند در آن دخالت داشته باشد. در شرایط کلینیکی از g-csf جهت ورود سلول های خونساز به خون محیطی استفاده می شود. این فاکتور به طور گسترده با مکانیسم های مختلف عمل می کند اما نحوه عملکرد آن بر روی...
سابقه و اهداف: فاکتور محرک رشد کلونی گرانولوسیت (G-CSF) به عنوان فاکتور موثر در تمایز سلولهای خونی خصوصا نوتروفیلها شناخته می شود، به همین دلیل به طور گسترده ای در درمان نوتروپنی ناشی از شیمی درمانی استفاده می شود. تحقیقات متعدد بیانگر بالا رفتن میزان G-CSF در شراط التهابی و همچنین نقش التهابی این فاکتور بوده اند. اینترفرون های(IFN) نوع یک به عنوان فاکتورهای ضد التهابی شناخته می شوند. هدف از ای...
BACKGROUND The genes encoding myeloperoxidase (MPO) and alpha(2)-macroglobulin (A2M) are involved in molecular pathways leading to beta-amyloid deposition. Two polymorphic sites in these genes (MPO-G/A and A2M-Ile/Val) have been associated with Alzheimer disease (AD), but conflicting findings have been reported in populations with different ethnic backgrounds. OBJECTIVES To study the associat...
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