نتایج جستجو برای: stem
تعداد نتایج: 277012 فیلتر نتایج به سال:
germline and somatic stem cells are distinct types of stem cells that are dedicated to reproduction and somatic tissue regeneration, respectively. germline stem cells (gscs), which can self-renew and generate gametes, are unique stem cells in that they are solely dedicated to transmit genetic information from generation to generation. we developed a strategy for the establishment of germline st...
background: umbilical cord tissue is a very rich source of mesenchymal stem cells. instead of discarding this source we are banking the tissue along with cord blood for possible future cell based applications. the cord tissue needs to be transported and stored properly in order for it to be good enough for cell isolation at a later date. in this paper we have carried out a validation study to d...
introduction : use of adipose-derived stem cells (adscs) is a suggested hypothesis to enhance the regeneration of bone defects. this technique is of particular interest since adscs are more easily accessible via a non-invasive harvesting technique compared to bone marrow stem cells (bmscs). this study sought to assess the efficacy of adsc implantation for regeneration of localized mandibular bo...
سرطان کلورکتال، عمدتاً به عنوان سرطان روده بزرگ شناخته شده است که از رشد کنترل نشده ی سلول ها در روده بزرگ و راست روده ایجاد می شود. این سرطان سومین سرطان شایع تشخیص داده شده در جهان است و 60% موارد در کشورهای توسعه یافته تشخیص داده شده است. در تقسیم بندی سرطان کلورکتال، چهار مرحله وجود دارد که براساس میزان گسترش و پیشرفت بیماری رده بندی می شود. در مرحله ی چهارم ممکن است لنف درگیر شده و متاساز آ...
هم کشتی سلول های بنیادی با یکدیگر دریچه های جدیدی را فرا روی محققین علم سلول درمانی گشوده است. با این روش میتوان سبب بهبود شرایط کشت و تمایز بهتر سلول های بنیادی شد. فاکتورهای رشد عصبی (neurotrophic factors,ntfs)، مولکول هایی هستند که نقش های بسیار حیاتی در بقا، تکثیر و تمایز سلول های بنیادی دارند. هدف از این تحقیق ارزیابی بیان فاکتورهای نوروتروفیک (gdnf، bdnf، cntf،nt3) و سرعت تکثی...
background: the definitive endoderm (de) differentiation using the undefined media and non-human feeders can cause contaminations in the generated cells for therapeutic applications. therefore, generating safer and more appropriate de cells is needed. this study compared five different methods to establish an appropriate method for inducing an efficient de differentiation from human induced plu...
objective(s):mesenchymal stem cells (mscs) derived from wharton’s jelly (wj-mscs) are now much more appealing for cell-based infertility therapy. hence, wj-mscs differentiation toward germ layer cells for cell therapy purposes is currently under intensive study. materials and methods: mscs were isolated from human wharton’s jelly and treated with bmp4, retinoic acid (ra) or co-cultured on human...
epilepsy is one of the most common neuroinflammatory disorders that affect more than 50 million people worldwide. excessive electrical discharges in neurons following neural cell damage or loss leads to recurrent seizures, which are described as epilepsy. one of the most common and difficult to treat types of epilepsy is temporal lobe epilepsy (tle), which results from hippocampal sclerosis. cu...
background: mesenchymal stem cells (mscs) are important candidates for msc-based cellular therapy. current paradigm states that mscs support local progenitor cells in damaged tissue through paracrine signaling. therefore, study of paracrine effects and secretome of mscs could lead to the appreciation of mechanisms and molecules associated with the therapeutic effects of these cells. this study ...
stem cells are the cells having some distinguishing characteristics like longevity, high capacity of self-renewal and differentiation, quiescence and highly error-free proliferation. almost all stem cells have the potential of lineage reprogramming, i.e. inter-conversion of cell lineages. they also have the potential to differentiate into almost all kinds of cells. these cells have been found i...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید