Efficacy of Combined Use of PELNAC and Platelet-rich Plasma in Promoting Wound Healing

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

Background Artificial dermis is useful for treating full-thickness skin defects but requires a long time to form dermis-like granulation tissue. This study investigated whether platelet-rich plasma (PRP) combined with PELNAC, a collagen-based artificial dermis, promotes wound healing and examined the underlying mechanism. Methods Two 1-cm² full-thickness skin defects were created in 8-week-old male nude rats (n = 8). One defect received saline-impregnated PELNAC (control group); the other received PRP-impregnated PELNAC (combination group). Cytokine levels in PRP were measured. Wound area measurements and histological and immunohistochemical evaluations (transforming growth factor-β1 [TGF-β1], vascular endothelial growth factor [VEGF], α-smooth muscle actin, and von Willebrand factor) were performed on day 14. Results Compared with the control group, the combination group showed a significantly reduced wound area (32.4 ± 14.89 versus 68.3 ± 14.9 mm², P P P P Conclusions The combined use of PELNAC and PRP accelerated dermis-like granulation tissue formation through increased expression of VEGF and transforming growth factor-β1, significantly improving wound healing. This combination therapy could be easily applied in clinical practice and may contribute to shortening healing times for deep dermal defects.

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

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