“…Blood platelets contain many different growth and neurotrophic factors that are released when activated, including platelet-derived growth factor (PDGF), transforming growth factor-β (TGF-β), insulin-like growth factor-1 (IGF-1), fibroblast growth factor (FGF), vascular endothelial growth factor (VEGF), brain-derived neurotrophic factor (BDNF), nerve growth factor (NGF) and neurotrophin-3 (NT3). 3 , 4 , 5 There is a great interest in utilizing platelet rich plasma (PRP) in oral and maxillofacial bone grafting procedures, non-healing wounds, ulcers, fistula, skin rejuvenation, and peripheral nerve regeneration. 6 , 7 , 8 , 9 , 10 , 11 , 12 However, there is no literature on the effect of PRP on the regeneration of central nerve fibers, particularly in SCI.…”