نتایج جستجو برای: spermatognial stem cells
تعداد نتایج: 1506203 فیلتر نتایج به سال:
Recent findings in stem cell biology have opened a new window in regenerative medicine. The endometrium possesses mesenchymal stem cells (MSCs) called endometrial stem cells (EnSCs) having specific regenerative properties linked to adult stem cells. They contribute in tissue remodeling and engineering and were shown to have immuno-modulating effects. Many clinical trials were undertaken to asce...
Stem/progenitor cell based therapeutic approach in our daily routine clinical practice, has been elusive dream in medical sciences and improvement of stem cell homing as one of major challenges in cell therapy programs, has been considered a promising milestone. It has been proved that stem/progenitor cells exhibit a homing response to injured tissues/organs, mediated by interactions of chemoki...
background: mesenchymal stem cells (msc) have ability to regulate immune response via proinflamatory cytokines. in this study we aimed to investigate the effect of different mechanism for t cell activation and adjacency on immunoregulatory properties of msc. methods: bone marrow mscs were purchased and t cells were obtained from whole blood sample. t cells were activated by two different mechan...
severe hepatic failure accounts for many deaths and raises medical costs each year worldwide. currently, liver transplantation is the most common therapeutic option for patients with end-stage chronic liver disease. due to decrease in the number of organ donors, many in need of transplantation continue to remain on the waiting list. hepatic tissue engineering is a step toward alleviating the ne...
introduction: accumulating evidences indicated that during increasing of the animals' age, the number and the functional properties of hematopoietic stem cells (hscs) become altered because of a gradual decrease in replication potential. the efficient factors in this process are dna damaging, reduced telomerase activity, shortening of telomeres and oxidative stresses. for overcoming these fact...
objective(s): stem cell therapy is believed to be as a promising treatment strategy for tissue repair and regeneration. the plasticity specification of the adult stem cells, such as mscs, has enabled that these cells to be used in the treatment of a broad spectrum of diseases like liver disorders. in this study, the production of urea and albumin (alb), glycogen storage, and expression of some ...
objective(s): platelet-rich plasma (prp) has recently emerged as a promising strategy in regenerative medicine due to its multiple endogenous growth factors. little is known about the role of prp as a promoter in chondrogenesis of human adipose derived stem cells (hadscs). the aim of this study was to determine whether prp may be considered as a natural and easy achievable source of growth fact...
objective(s): the main characteristic of mesenchymal stem cells (mscs) is their ability to produce other cell types. electromagnetic field (emf) stimulates differentiation of mscs into other cells. in this study, we investigated whether emf can effect on the differentiation of mscs into dopaminergic (da) neurons. materials and methods: an emf with a frequency of 50 hz and two intensities of 40 ...
objective(s) mesenchymal stem cells (mscs) are nonhematopoietic stromal cells that are capable of differentiating into and contribute to the regeneration of mesenchymal tissues. human mesenchymal stem cells (hmscs) are ideal targets in cell transplantation and tissue engineering. enhanced green fluorescent protein (egfp) has been an important reporter gene for gene therapy. the aim of this stud...
introduction: type i diabetes mellitus is caused by autoimmune destruction of the insulin-producing β-cells. a new potential method for curing the disease is transplantation of differentiated insulin- secreting cells from human embryonic stem cells. methods: human embryonic stem cell lines (royan h1) were used to produce embryoid bodies. differentiation carried out by growth factor-mediated sel...
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