نتایج جستجو برای: bone induction
تعداد نتایج: 495870 فیلتر نتایج به سال:
Background: In order to evaluate bone induction and repair in cranial bone defects by the use of combination of Octacalcium Phosphate/Bone Matrix Gelatin (OCP/BMG), this study was conducted. Materials and Methods: We used 40 young male Sprague dawley rats (5-6 weeks age). A full thickness standardized trephine defect, 5mm in diameter, was made in the rat parietal bone and OCP combined with BMG ...
The answer is perhaps more apparent than what is generally believed. An experiment conducted by Ripamonti et al. (1997), provided a new concept, which moved away from studying the effects of single stimuli and how these effected bone formation. Loading a biomimetic matrix with more than one morphogen, osteogenic protein-1 (OP-1) and TGF-β 1 , and then implanting these into heterotopic (non-bony...
PURPOSE This study investigated the prognostic value of quantifying tumor cells in bone marrow and blood by immunocytology in children with high-risk, metastatic neuroblastoma. PATIENTS AND METHODS Patients with stage IV neuroblastoma (N = 466) registered on Children's Cancer Group study 3891 received five cycles of induction chemotherapy and were randomized either to myeloablative chemoradio...
مقدمه و هدف : یکی از عوامل مهم و تاثیرگذارجهت دستیابی به انطباق بدون تنش در پروتزهای متکی بر ایمپلنت، انجام قالبگیری دقیق می باشد. دو روش قالبگیری مستقیم و غیرمستقیم برای انتقال موقعیت ایمپلنت از دهان به کست کار وجود دارد. هدف از انجام این مطالعه بررسی دقت وسایل رایج جهت قالبگیری به روش غیرمستقیم درسه نوع سیستم مختلف ایمپلنت دندانی و مقایسه آنها با روش مستقیم می باشد. مواد و روش ها : در...
background: it has been stated that the bone allografts from different tissue banks may lead to various amount of bone induction, so the aim of this study was to evaluate bone regeneration of three demineralized allografts both histologically and histomorphometrically in rabbits calvaria bone defects. materials and methods: in this double-blind randomized experimental animal study, 32 critical ...
Background & Objective : Bone marrow stromal cells (BMSCs) are a kind of stem cells with high pluripotency. The BMSCs can differentiate into mesodermal and non mesodermal cells. Because of availability of them, they are a suitable source of adult stem cells for cell therapy. Some inducers were used to differentiate stem cells into neural phenotype, such: retinoic acid, dimethyl sulfoxide, dep...
BACKGROUND Acute lymphoblastic leukaemia (ALL) is the most common paediatric malignancy. It represents 25% of all childhood cancers and approximately 75% of all cases of childhood leukaemia. A sharp peak of ALL incidence is observed at 2-5 years of age. Objective was to see the bone marrow remission pattern at the end of induction therapy in paediatric ALL patients in our setup. It was a Descri...
Purpose: To investigate the in vitro differentiation process of cardiomyocyte-like cells derived from human bone marrow mesenchymal stem cells under the influence of 5-azacytidine (5-aza). Materials and Methods: After purification, human bone marrow mesenchymal stem cells were exposed to 5-aza at a concentration of 5 μmol for 5 weeks to induce cardiomyocyte differentiation. To induce differenti...
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