neurotrophic factor By Ivan Suarez Robles 16 Nov, 2010 A protein in the nervous system that promotes the growth of nerve cells.Related Articles: Help4HD International 2016 Symposium13th Annual Huntington Disease Research SymposiumGlossary: nerve growth factor (NGF) superfamilyGlossary: neurotrophic factor hypothesisThe Motor Symptoms of Huntington's Disease