What is the best degree of hyaluronic acid crosslinking in increasing growth factors level of platelet-rich fibrin lysate?

Introduction: Various therapeutic materials such as hyaluronic acid (HA) and platelet-rich fibrin lysate (PRF-L) have been represented to improve chronic fibroblast ulcers and premature aging. HA crosslinking is the most popular dermal filler presently in the therapy of aging skin. With the PRF-L properties that are rich in growth factors (GF), the combination of these materials is expected to produce synergistic and potentiation effects. Objective: This study aimed to determine the effect of various degrees of HA crosslinking on GF levels in PRF-L. Materials and Methods: PRF-L was obtained from PRF of healthy adult venous blood with 72 hours of incubation. HA was taken from preparations with 3 crosslinking degrees of 3%, 4%, and 10%. Measurement of GF levels was performed using sandwich ELISA method. Results: The GF levels released in PRF-L increased with the addition of HA crosslinking. The lower HA crosslinking degree (3%) triggered greater release of GF by PRF-L compared to higher HA crosslinking degree (4% & 10%). Conclusion: Low degree HA crosslinking elevated all measured GF levels in PRF-L. The lower HA crosslinking degree provoked higher release of GF.