Contents of proteins and platelet growth factors in platelet releasate (PR) and heat-treated PR (HPR) (***p<0.001, PR and HPR, compared to platelet-poor plasma).

PDGF, platelet-derived growth factor; BDNF, brain-derived neurotropic factor; VEGF, vascular endothelial growth factor; EGF, epithelial growth factor; FGF, fibroblast growth factor; TGF, transforming growth factor; HGF, hepatocyte growth factor; ND, not detectable.