Figure 1. Biochemical composition: PRP is an autologous concentrate derived from peripheral blood, rich in platelets and composed of growth factors (PDGF, TGF-β, VEGF, IGF-1, EGF, FGF), cytokines (IL-1β, IL-6, IL-8, IL-10), chemokines (RANTES, SDF-1), adhesive proteins (fibrin, fibronectin, adhesin), small amounts of leukocytes, and plasma proteins such as fibrinogen and albumin. These elements act synergistically in tissue regeneration, inflammatory modulation, and angiogenesis induction, which are important for clinical applications in assisted reproduction.