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        Histologic Evidence of New Collagen Formulation Using Platelet Rich Plasma in Skin Rejuvenation: A Prospective Controlled Clinical Study

        ( Ozlem Karabudak Abuaf Hamza Yildiz ),( Huseyin Baloglu ),( Memet Ersan Bilgili ),( Hasan Aktug Simsek ),( Bilal Dogan ) 대한피부과학회 2016 Annals of Dermatology Vol.28 No.6

        Background: Platelet-rich plasma (PRP) is an autologous concentration of human platelets contained in a small volume of plasma and has recently been shown to accelerate rejuvenate aging skin by various growth factors and cell adhesion molecules. Objective: This study was conducted to evaluate the efficacy and safety of intradermal injection of PRP in the human facial rejuvenation. Methods: This study was a prospective, single-center, single-dose, open-label, non-randomized controlled clinical study. PRP injected to the upper site of this right infra-auricular area and all face. Saline was injected to the left infra-auricular area. Histopathological ex-aminations were performed before PRP treatment, 28 days after the PRP, and saline (control) treatments. Results: Twenty women ranging in age from 40 to 49 years (mean age, 43.65±2.43 years) were enrolled in the study. The mean op-tical densities (MODs) of collagen in the pre-treatment, con-trol, and PRP-treated area were measured. They were 539±93.2, 787±134.15, 1,019±178, respectively. In the MOD of PRP, 89.05 percent improvement was found when MOD of PRP was compared with MOD of pre-treatment. The mean MOD of collagen fibers was clearly highest on the PRP side (p<0.001). The PRP-to-saline improvement ratio (89.05% to 46.01%) was 1.93:1. No serious side effects were detected. Conclusion: PRP increases dermal collagen levels not only by growth factors, but also by skin needling (the mesotherapy technique `point by point`). PRP application could be considered as an effective (even a single applica-tion) and safety procedure for facial skin rejuvenation. (Ann Dermatol 28(6) 718∼724, 2016)

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