A method for isolating self-renewable stem cells from pluripotent stem cells (embryonic or induced) by treating the pluripotent stem cells with a combination of epidermal growth factor and basic growth factor, wherein upon treatment, the pluripotent stem cells differentiate into self-renewable neural stem cells. The self-renewable stem cells may be further induced to dopaminergic neurons through treatment with dopaminergic inducing media. The dopaminergic neurons may be administered in a cell suspension, alone or in combination with purified glial cells, directly into the brain tissue of patients suffering from neurological disorders.
