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  • Title: Differential acceleration of healing of surgical incisions in the rabbit gastrointestinal tract by platelet-derived growth factor and transforming growth factor, type beta.
    Author: Mustoe TA, Landes A, Cromack DT, Mistry D, Griffin A, Deuel TF, Pierce GF.
    Journal: Surgery; 1990 Aug; 108(2):324-9; discussion 329-30. PubMed ID: 2382228.
    Abstract:
    Anastomotic dehiscence is a major cause of morbidity and mortality in gastrointestinal surgery. A unique model system of a gastric incision was developed to test the potential of polypeptide growth factors to enhance wound healing. Paired, deep partial-thickness incisions to but not including the gastric mucosa were made. A single topical application of transforming growth factor, type beta 1 (TGF-beta), platelet-derived growth factor, or control vehicle at the time of wounding was given. Wound breaking strength and detailed histologic analyses of wounds were evaluated as a function of time after wounding. TGF-beta (0.1 to 2.0 micrograms/wound) demonstrated a bimodal, dose-dependent acceleration of wound breaking strength 7 days after gastric wounding. An approximate 4-day acceleration of gastric wound breaking strength by TGF-beta (2 micrograms/wound) was seen at 7 and 11 days. Wounds treated with platelet-derived growth factor (10 micrograms/wound) displayed an increased cellular response but no enhancement of breaking strength at 7 and 11 days. These results demonstrate the ability of TGF-beta to accelerate gastrointestinal tissue repair by topical application and suggest significant potential for the use of growth factors in enhancing repair of surgical wounds of the gastrointestinal tract.
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