introduction: different effects of low level laser irradiation (llli) on various cell types have already been demonstrated. however, its effects on embryonic stem cells have not yet been shown. the present study evaluates the morphological and immunocytochemical effects of llli on human embryonic stem cell (hesc) colonies. material and methods: equal-sized pieces of hesc line (royan h1) were ir...

Recently new reports have proved the pluripotency of spermatogonial stem cells (SSCs) derived from male gonad. This pluripotent stem cells resembled Embryonic stem cells recognized as Embryonic Stem like cells (ES like cells). ES like cells forms sharp edge colonies that are immunopositive to pluripotency markers and have differentiation capacity to Ectodermal, Mesodermal and Endodermal layers....

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...

introduction based on previous researches, dental pulp stem cells (dpscs) are easily accessible with limited morbidity after collection. their embryonic origin, from neural crests, explains their multipotency. dpscs are primarily derived from the pulp tissues of the teeth.objective: this study was undertaken to isolate, culture, and characterize two different third molar and first premolar huma...

BACKGROUND Human embryonic stem cells are likely to play an important role in the future of regenerative medicine. However, exposure of existing human embryonic stem-cell lines to live animal cells and serum risks contamination with pathogens that could lead to human health risks. We aimed to derive an embryonic stem-cell line without exposure to cells or serum. METHODS Frozen cleavage-stage ...

how to cite this article: : farivar s, mohamadzade z, shiari r, fahimzad ar. neural differentiation of human umbilical cord mesenchymal stem cells by cerebrospinal fluid. . iran j child neurol. 2015 winter; 9(1):87-93.     abstract objective wharton’s jelly (wj) is the gelatinous connective tissue from the umbilical cord. it is composed of mesenchymal stem cells, collagen fibers, and proteoglyc...

Ex vivo production of human red blood cells from hematopoietic stem cells: what is the future in transfusion? Hematopoietic colony-forming cells derived from human embryonic stem cells. Induction of pluripotent stem cells from mouse embryonic and adult fibroblast cultures by defined factors. et al. Induction of pluripotent stem cells from adult human fibrob-lasts by defined factors. Tian S, et ...

Despite the significant advances in regenerative medicine, wound healing has remained a challenging clinical problem. Skin is the largest human organ with many vital functions; therefore, any damage to its normal structure should be treated as soon as possible. Easy access to skin stem cells has created a lot of excitement in therapeutic applications. “Cell therapy” is considered a novel method...