Fig.7 Growth factor detection using antibody arrays[20].
(a) Fresh PRP
Growth factors such as PDGF AB, VEGF R2, TGF-β, and EGF were detected as spots. Each detailed location is shown in the scheme.
(b) PRP in RT stored for 8 weeks
Almost all growth factors disappeared.
(c) Frozen PRP stored for 8 weeks
Thinner but significant spots were detected.
(d) Freeze dried PRP stored for 8 weeks
Almost all growth factors were observed as robust spots.