Receptors, Neurons - metabolism, Neurons - drug effects, Signal Transduction - drug effects, Gene Expression Regulation - drug effects, Cell Proliferation - drug effects, Neural Stem Cells - metabolism, Spinal Cord - cytology, Neural Stem Cells - cytology, Cell Differentiation - genetics, Hypoxia-Inducible Factor 1, alpha Subunit - metabolism, Vascular Endot...