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  • Title: Matrix metalloproteinase 9 level predicts optimal collagen deposition during early wound repair in humans.
    Author: Agren MS, Jorgensen LN, Andersen M, Viljanto J, Gottrup F.
    Journal: Br J Surg; 1998 Jan; 85(1):68-71. PubMed ID: 9462387.
    Abstract:
    BACKGROUND: This study examined two matrix metalloproteinases (MMPs) and their association with deposition of collagen during wound repair. METHODS: In 15 hernia wounds, wound fluid was collected using two Cellstick devices, which were implanted adjacent to two expanded polytetrafluoroethylene (ePTFE) tubes. MMP-2 and MMP-9 levels were analysed 24 and 48 h after operation using specific enzyme-linked immunosorbent assays, and collagen deposition in the ePTFE tubes was measured 10 days after operation as hydroxyproline. RESULTS: The levels of both MMPs in wound fluid were increased compared with those of control serum, although MMP-9 decreased (P < 0.01) in the wounds 24-48 h after operation. The MMP-9 level at 24 h correlated inversely and specifically to deposited collagen measured as hydroxyproline (rs = -0.80, P < 0.01). CONCLUSION: These results indicate that the level of MMP-9 in the early inflammatory phase can predict the amount of collagen deposited later in the wound healing process.
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