In vitro expanded neural stemprogenitor cells can undergo region-specific differentiation after transplantation to the developing or adult brain, and display morphologies and markers characteristic of mature neurons. Here we have used patch-clamp techniques to explore whether grafted stem cells also can develop physiological properties of mature neurons and become functionally integrated within...

background: retinoic acid as one of the most important regulators for cell differentiation was examined in this study for differentiation of human umbilical mesenchymal cells (hucm). methods: after isolation, hucm were evaluated for mesenchymal stem cell properties by flow cytometry and alkaline phosphatase assay. also, doubling time of the cells and their differentiation potential into adipoge...

there are two main methods for preparing the puramatrix (pm) as a three-dimensional (3-d) scaffold for supporting the cells including surface plating and encapsulation. in the surface-plating procedure, the scaffold is created by adding an ionic agent such as medium to pm. after adjusting the ph by changing the medium, cells are seeded on top of the scaffold. in the encapsulation method, pm and...

traumatic brain injury (tbi) is defined as an external mechanical injury to the brain. neuroinflammation plays a vital role in the pathophysiology of tbi. microglia and astrocytes play a central role in the initiation and regulation of inflammation. numerous pro-inflammatory mediators including cytokines, chemokines, reactive oxygen species (ros) and nitric oxide (no) released by microglia. in ...

neural stem cells (nscs) as a heterogeneous multipotent and self- renewal population are found in different areas in the developing mammalian nervous system, as well as the sub-ventricular zone (svz) and the hippocampus of the adult brain. nscs can give rise to neurons, astrocytes and oligodendrocytes. the aim of this study was to differentiate neural stem cells into noradrenergic–like cells in...

multiple sclerosis (ms) is an autoimmune inflammatory demyelinating disease of the central nervous system. the aim of this study was to investigate the neuroprotective effects of transplanted human umbilical cord blood mesenchymal stromal cells (ucb-msc) derived neural progenitor cell (mdnpc) in eae, an experimental model of ms. to initiate neuronal differentiation of ucb-mscs, the pre-inductio...

background: stem cells from human exfoliated deciduous teeth (shed) have the capability to differentiate into neural cells. neurotrophins including nerve growth factor (ngf), brain-derived neurotrophic factor (bdnf), neurotrophin-3 (nt-3), and neurotrophin-4 (nt-4) have neurogenesis, neurotrophic, or neuroprotective effects and are expressed in developing teeth. the aim of this study was to mea...

objective: the neural crest is a transient structure of early vertebrate embryos that generates neural crest cells (nccs). these cells can migrate throughout the body and produce a diverse array of mature tissue types. due to the ethical and technical problems surrounding the isolation of these early human embryo cells, researchers have focused on in vitro studies to produce nccs and increase t...

multiple sclerosis is an inflammatory disease of the central nervous system in which t cells experience a second phase of activation, which ultimately leads to axonal demyelination and neurological disability. the recent advances in stem cell therapies may serve as potential treatments for neurological disorders. there are broad types of stem cells such as neural, embryonic, mesenchymal and hem...