Table 1

Panel A: List of the biologically active factors released by activated platelets. Panel B: Protocol for the preparation of PRP in each bioassay. The amount of blood collected, the centrifugal force, and the final PRP volume are shown.

Panel A

Biologically active factors released by the activated platelets11–15

ADP, ATP, Serotonin, Platelet-derived Growth Factor (PDGF), Transforming Growth Factor-β1 (TGF-β1), Connective Tissue Activating Peptide III (CATP III), Insuline-like Growth Factor-1 (IGF-1), Epidermal Growth Factor (EGF), Vascular Endothelial Growth Factor (VEGF), basic Fibroblast Growth Factor (bFGF), Angiopoietin-2 (Ang-2), Thrombospondin, Factor V, Factor XI, Factor XIII, Platelet-derived endothelial cell growth factor (PDECGF), Osteocalcin, and adhesive proteins such as Fibrinogen, Fibronectin, von Willebrand Factor (vWF), and P-Selectin.

Panel B

Bioassay
Collected Blood (final volume, including anticoagulant)
Collection site
First spinning (RCF)
Second spinning (RCF)
PRP volume

Heterotopic bioassay (Ferret)
5 ml
Jugular vein
40 g for 20'
235 g for 10'
250 μl
Orthotopic bioassay (Rat)
3 ml
Jugular vein
380 g for 2'15"
380 g for 5'
75 μl
Orthotopic bioassay (Non-human primate)
30 ml
Cephalic vein
1130 g for 2'15"
1130 g for 5'
1.5 ml
Clinical cases (Homo sapiens)
20 ml
Cephalic vein
Basilic vein
Median cubital vein
1130 g for 2'15"
1130 g for 5'
1 ml

Intini et al. Journal of Translational Medicine 2007 5:13   doi:10.1186/1479-5876-5-13