Platelet-released growth factors (PRGF) and its related clinically used formulations (e.g., Vivostat Platelet-Rich Fibrin (PRF®)) contain a variety of chemokines, cytokines, and growth factors and are therefore used to support healing of chronic, hard-to-heal, or infected wounds. Human beta-defensin-3 (hBD-3) is an antimicrobial peptide inducibly expressed in human keratinocytes especially upon...

Platelet-rich fibrin (PRF) belongs to a new generation of platelet concentrates geared to simplified preparation without biochemical blood handling. In this initial article, we describe the conceptual and technical evolution from fibrin glues to platelet concentrates. This retrospective analysis is necessary for the understanding of fibrin technologies and the evaluation of the biochemical prop...

background autologous platelet concentrate has been used to improve the function and regeneration of injured tissues. tendinopathies are common in clinical practice, although long-term treatment is required. on the basis of lead time, we compared the effect of using platelet-rich plasma (prp) and platelet-rich fibrin (prf) in repairing rat achilles tendon. methods the effectiveness of using prp...

This study analyzed the effect of the platelet count in platelet-rich plasma (PRP) on bone regeneration in vivo. Twenty male New Zealand white rabbits were used. PRP was produced using the Platelet Concentrate Collection System (PCCS) (3i, Miami, FL, USA). After inducing ketamine-xylazine anaesthesia, a self-tapping titanium screw (Branemark MK III TiUnite, 3.75 x 7 mm) was inserted in each dis...

Platelet-rich fibrin, developed in France by Choukroun et al., is a second generation platelet concentrate widely used to accelerate soft and hard tissue healing. It is a strictly autologous fibrin matrix containing a large quantity of platelet and leukocyte cytokines. It has also been shown to stimulate the growth of osteoblasts and periodontal ligament cells, both of which are significant for...

With advances in basic science, the use of biological adjuncts is currently being explored to supplement orthopedic surgery. Platelet-rich plasma is a clinical concept of autologous intraoperative concentration of serum platelets to provide high levels of early critical growth factors for implantation into fracture, arthrodesis, or nonunion sites. The theoretical benefit of a biological adjunct...

BACKGROUND Previous studies of bioactive molecules in platelet-rich plasma (PRP) have documented growth factor concentrations that promote tissue healing. However, the effects of leukocytes and inflammatory molecules in PRP have not been defined. HYPOTHESIS The hypothesis for this study was that the concentration of growth factors and catabolic cytokines would be dependent on the cellular com...