نتایج جستجو برای: 1 and mechanical growth factor mgf

تعداد نتایج: 17448604  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کردستان - دانشکده علوم پایه 1389

از فرآیند گرمای القائی در تکنولوژی و صنعت در موارد زیادی مانند جوش فلزات، بازپخت، متالورژی ]1[ رشد بلور ]4-2[، و ... استفاده می شود. در این روش ماده فلزی مورد نظر (قطعه کار مانند بوته)، داخل یک پیچه ی القائی قرار می گیرد. سپس با ایجاد یک جریان الکتریکی متناوب فرکانس بالا درپیچه (جریان رانشی)، میدان های الکتریکی و مغناطیسی متناوبی در اطراف پیچه ایجاد می شوند. با نفوذ این میدان ها در ماده فلزی مو...

پایان نامه :0 1371

the treatment of in completely formed pulpless teeth has presented considrable problems. these teeth have wide open apexes and the walls of the root canal diverge toward the apical tissues. mechanical preparation cannot be done in the normal manner beacause of the large initial size and the taper of apical part of the canal , a mechanical stop cannot be produced at the apex of the canal and , t...

Journal: :Investigative ophthalmology & visual science 1981
R S Smith L A Smith L Rich V Weimar

Rabbits received nonpenetrating central corneal knife wounds. Immediately after wounding, a single 2.5 or 5.0 micron dose of mesodermal growth factor (MGF) was applied topically to the wound. Controls were treated with saline. Electron microscopic studies compared the healing responses of the control and treated animals over a 7-day period. MGF was a potent nitrogen for keratocytes in rabbit co...

Journal: :Blood 1994
J T de Wolf E W Muller D H Hendriks R M Halie E Vellenga

To study the differentiation process of erythroid progenitors from normal human bone marrow and peripheral blood, CD34/CD36 sorted cells were cultured in the presence of Erythropoietin (Epo) and Epo plus mast cell growth factor (MGF). The CD34+/CD36- cell fraction from bone marrow supported 74 +/- 33 erythroid burst forming units (BFU-E)/10(4) cells (mean +/- SD, n = 4) in the presence of Epo, ...

Journal: :Poultry science 2001
J W Sijben J W Schrama H K Parmentier J J van der Poel K C Klasing

Effects of dietary polyunsaturated fatty acids (PUFA) on immune responses in poultry have been reported. However, effects on the underlying mechanisms, such as the role of cytokines, have not been documented because the necessary tools were lacking. Recently, primer sets for chicken interleukin (IL)-1beta, IL-2, interferon-gamma (IFN-gamma), myelomonocytic growth factor (MGF), and transforming ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1992
M Schmitt-Ney B Happ R K Ball B Groner

During the lactation period, mammary epithelial cells secrete large amounts of milk proteins. The coordinate regulation of milk protein expression is effected by the lactogenic hormones. We have investigated the activity of a mammary gland-specific transcription factor (MGF), which mediates hormonal influences at the level of a milk protein gene promoter. MGF-binding sites are present in the pr...

Journal: :Journal of strength and conditioning research 2009
Colin D Wilborn Lemuel W Taylor Michael Greenwood Richard B Kreider Darryn S Willoughby

A single bout of high-intensity resistance exercise is capable of activating the expression of various genes in skeletal muscle involved in hypertrophy such as myosin heavy chain (MHC) isoforms, myogenic regulatory factors (MRFs), and growth factors. However, the specific role exercise intensity plays on the expression of these genes is not well defined. The purpose of this study was to investi...

Journal: :international journal of pediatrics 0
e hasanzadeh department of life sciences engineering, faculty of new sciences & technologies, university of tehran, tehran, iran. gh amoabediny research center for new technologies in life science engineering, university of tehran, tehran, iran. n haghighipour national cell bank of iran, pasteur institute of iran, tehran, iran. n amirzadeh blood research center, high institute for education and research in transfusion medicine, tehran, iran. j mohammadnejad department of life sciences engineering, faculty of new sciences & technologies, university of tehran, tehran, iran. n gholami department of life sciences engineering, faculty of new sciences & technologies, university of tehran, tehran, iran.

background: mesenchymal stem cells (mscs) are multipotent cells, capable of differentiating into different cell lines.they can sense their surrounding biochemical and biophysical factors, which play major roles in their differentiation toward different phenotypes. therefore, the exposure of these cells to endothelial growth factor (vegf) as well as hemodynamic biomechanical forces, which act on...

2000

Unlike the cells of many tissues, muscle and neuronal cells do not replicate throughout life. Therefore there has to be an eVective mechanism of inducing local repair and preventing cell death. We have identified and cloned two growth factors that are expressed by muscle when it is subjected to activity which are derived from the insulin like growth factor-I (IGF-I) gene by alternative splicing...

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