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Neural stem cells (NSCs) are self-renewable, multipotential cells capable of differentiating into the three major neural cell types, but the mechanisms which regulate their development are not fully understood. Both basic fibroblast growth factor (bFGF) and epidermal growth factor (EGF) promote the proliferation of NSCs. However, studies on the role of FGFs(More)
The supporting role of glial cells in maintaining neurons and in ion homeostasis has been studied in situ by perfusing the gliotoxin fluorocitrate (FC) through a microdialysis fiber in the CA1 area of urethane-anesthetized rats. Extracellular direct current potential, extracellular potassium concentration ([K+]o) and amino acid levels, extracellular pH(More)
Adult bone marrow contains stem cells that have attracted interest through their possible use for cell therapy in neurological diseases. Bone marrow stromal cells (MSCs) were harvested from donor adult rats, cultured and pre-labeled with bromodeoxyuridine (BrdU) previously to be injected in the distal stump of transected sciatic nerve of the rats. Distal(More)
The supportive role of glial cells on neuronal function and survival has been studied in anesthetized rats by using the selective gliotoxin fluorocitrate. Disabling glia operation reproduced many features of ischemic penumbra. An initial mild acidosis and increased interstitial potassium but not glutamate was followed after 3-4 h by repetitive spreading(More)
Acidic and basic fibroblast growth factors (FGFs) are members of a family of proteins that are broad-spectrum mitogens, have diverse hormone-like activities, and function in tumorigenesis. FGF's ability to raise the concentration of intracellular calcium ion suggests that FGF could induce the synthesis of endothelium-derived relaxing factor (EDRF) and(More)
OBJECTIVES The goals of the present study are to obtain, expand and characterize a stem cell population from human omentum and to evaluate its in vivo angiogenic capacities. METHODS Human omental CD34+ cells were obtained from samples of human omentum by density gradient centrifugation in Ficoll. Proliferative pattern, marker expression (by flow(More)
Cell therapy using bone marrow stromal cells is a new promising therapy for regenerative medicine. Previous studies demonstrated that local bone marrow stromal cells implantation in the distal stump of transected sciatic nerve of rats promotes early functional recovery. The purpose of this study was to expand on the preliminary research by investigating the(More)
The possibility that exogenous recombinant human acidic fibroblast growth factor (rhaFGF) may have anticonvulsant properties was investigated in a model of temporal lobe epilepsy in awake rats. We found that after intraperitoneal injection of rhaFGF in kainic acid-treated rats, tonic-clonic convulsions and mortality were decreased by 74% and 77%,(More)
The death of facial motoneurons after axotomy provides a useful tool for studying neurotrophic factors which could prevent motoneuron loss in vivo. The right facial nerve trunk before the postauricular nerve branching of newborn rats was transected at its extracranial exit, and topically treated, at the axotomy site, with either a vehicle solution(More)
Vaginal and clitoral vasodilator responses (genital vascular responses; GVRs) to pelvic nerve electrical stimulation in female rabbits were measured by laser Doppler flow needle probes. The intravenous administration of various treatments was evaluated. GVRs were attenuated by a nitric-oxide synthase inhibitor (48.5 and 51.8% of control at 8 Hz in the(More)