نتایج جستجو برای: neural cell

تعداد نتایج: 1950368  

Journal: :Development 2011
Santanu Banerjee Laura Gordon Thomas M Donn Caterina Berti Cecilia B Moens Steven J Burden Michael Granato

Trunk neural crest cells delaminate from the dorsal neural tube as an uninterrupted sheet; however, they convert into segmentally organized streams before migrating through the somitic territory. These neural crest cell streams join the segmental trajectories of pathfinding spinal motor axons, suggesting that interactions between these two cell types might be important for neural crest cell mig...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده مهندسی معدن 1393

در این تحقیق شبکه عصبی مصنوعی برای پیش بینی مقادیر ضریب اطمینان و فاکتور ایمنی بحرانی سدهای خاکی ناهمگن ضمن در نظر گرفتن تاثیر نیروی اینرسی زلزله ارائه شده است. ورودی های مدل شامل ارتفاع سد و زاویه شیب بالا دست، ضریب زلزله، ارتفاع آب، پارامترهای مقاومتی هسته و پوسته و خروجی های آن شامل ضریب اطمینان می شود. مهمترین پارامتر مورد نظر در تحلیل پایداری شیب، بدست آوردن فاکتور ایمنی است. در این تحقیق ...

Journal: :مجله علوم اعصاب شفای خاتم 0
sajad sahab negah a. shefa neuroscience research center, khatam alanbia hospital, tehran, iranhistology and embryology group, basic science department, faculty of veterinary medicine, shiraz university, shiraz, iran zabihollah khaksar histology and embryology group, basic science department, faculty of veterinary medicine, shiraz university, shiraz, iran hadi kazemi a. shefa neuroscience research center, khatam alanbia hospital, tehran, iran b. shahin mohammad sadeghi department of plastic and reconstructive surgery, shahid beheshti university of medical sciences, tehran, iran hadi aligholi a. shefa neuroscience research center, khatam alanbia hospital, tehran, iran b. pediatric department, medical faculty, shahed university, tehran, iran mostafa modarres mousavi shefa neuroscience research center, khatam alanbia hospital, tehran, iran

spinal cord injury (sci) is a devastating condition, with sudden loss of sensory, motor, and autonomic function distal to the level of trauma. the primary mechanical trauma causes necrosis, edema, hemorrhage, and vasospasm. a cascade of secondary pathophysiological mechanisms is induced, including ischemia, apoptosis, fluid and electrolyte disturbances, excitotoxicity, lipid peroxidation, produ...

Journal: :cell journal 0

objective: cd133+ umbilical cord blood cells were identified as a hematopoietic stem cell which has the capacity for extensive self-renewal and differentiation. the aim of this study was to identify the effect of staurosporine (sts), a wellknown protein kinase inhibitor on differentiation of cd133+ cells into neural cells. materials and methods: cd133+ cells were enriched by immunomagnetic bead...

2012
Chyong-Yi Wu Lisa A. Taneyhill

The vertebrate neural crest is a population of migratory cells that originates in the dorsal aspect of the embryonic neural tube. These cells undergo an epithelial-to-mesenchymal transition (EMT), delaminate from the neural tube and migrate extensively to generate an array of differentiated cell types. Elucidating the gene regulatory networks involved in neural crest cell induction, migration a...

Journal: :Mechanisms of Development 2005
Weeteck Yeo Jean Gautier

Early neural cell death is programmed cell death occurring within proliferating and undifferentiated neural progenitors. Little is known about the regulation and role of early neural cell death. In Xenopus embryos, primary neurogenesis is disrupted following the inhibition of early neural cell death, indicating that it is required for normal primary neurogenesis. Here we show that early neural ...

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