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. 2020 Nov 13;8:e10303. doi: 10.7717/peerj.10303

Table 4. The Fixed PRP Volume Group.

Study Diluting procedure Fixed PRP/media ratio (Vol/Vol) Optimal concentration forproliferation (plt/μL)
Haynesworth et al. (2002) The initial PRP contained 1,600 ×103 plt/μ L (5fold). PRP-lysates corresponding to PRP concentrations of 0.625, 1.25, and 2.5 was made by diluting the lysate in MDEM. Each concentration was added to the media in a ratio of 10%/90% (Vol/Vol) 10% 1.6 × 106
Rughetti et al. (2008) Initial PRP was activated and diluted in DMEM + 2.5% FCS (proliferation) or in MDEM only (motility and invasion). Platelet concentration at 3 ×105, 5 ×105, 7.5 ×105, 1.25 ×106, 1.75 ×106, 2.25 ×106, 2.75 ×106, 3.25 ×106, 4 ×106, 5 × 106, and 7 × 106plt/ μ L was added to the medium Not described Probably a constant ratio 1.25 ×106
Jo et al. (2012) 10% activated PRP was added to the culture media (Vol/Vol) at platelet concentrations of 100, 200, 400, 800, 1000, 2000, 4000, 8000 and 16,000 ×103/ μ L. 10% 4.0 × 106(CaC2)
8.0 ×106 (CaC2 + trombine)
Sadoghi et al. (2013) 1-, 5-, and 10-fold PRP was obtained by diluting initial PRP in PPP. The PRP/media ratio is unclear. Not described 5-fold
Anitua et al. (2009) 200% and 400% of WB baseline Appr. platelet concentration of 404 ±39 × 103 and 767 ±95 × 103 added to media in a 20%/80% ratio 20% 0.767 ± .95 × 106
No sign. difference between PRP and controls regarding skin fibroblasts
Graziani et al. (2006) Initial PRP contained 800,000-1,37,00 plt/ μ L. Maximum PRP-lysate (PRP-max) was diluted in DMEM to obtain PRP-lysate containing 250%, 350% over WB baseline 33% (100ul culture media and 50ul PRP-lysate of any concentration) 2,5x ca.0.570 ×106 (osteoblast) 1x ca. 0.228 ×106 (fibroblast)
Mazzocca et al. (2012) PRPLP (382.0+/-111.6 × 103plt/ μ L) PRPDS (472.6+/-224.2 ×103 plt/ μ L) PRPHP (940.1+/-425.8 ×103 plt/ μ L) 10% 382.0+/-111.6 × 103 (PRPLP) - Myocytes
472.6+/-224.2 × 103 ( PRPDS)- Osteoblasts
382.0+/-111.6 × 103 (PRPLP) -Tenocytes
Berger et al. (2019) Platelet lysate (PL) was diluted in PPP to obtain lysates corresponding to platelet levels of 14x, 7x, 3.5x, 1.75x and 0.9x of WB. 20% Young group: 0.875 ×106
Old group: 3.5 ×106
Wang et al. (2019) Platelet lysate corresponding to 0.2 ×106, 0.5 ×106, 0.8 ×106, 1.0 ×106, 1.2 ×106, 1.5 ×106, 2.0 ×106, 2.7 ×106, and 3.0 ×106 10% 1.5–3.0 ×106