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  • Title: Dose-response study of the effect of growth hormone on mechanical properties of skin graft wounds.
    Author: Jørgensen PH, Bang C, Andreassen TT, Flyvbjerg A, Orskov H.
    Journal: J Surg Res; 1995 Mar; 58(3):295-301. PubMed ID: 7885026.
    Abstract:
    The aim of the study was to investigate the effect of growth hormone on compromised wound healing in a model without exogenously applied metabolic disturbances, e.g., diabetes mellitus. Female Wistar rats were injected with biosynthetic human growth hormone (b-hGH) at 2.0, 4.0, 8.0, and 16.0 mg/kg/day from 7 days before operation to 7 days after. Controls were given saline. On the left side of the dorsal skin a 35 x 20-mm full-thickness skin graft was raised and replaced in situ. After 7 days of healing the wound between the graft and the skin was tested mechanically. The maximum load and maximum stiffness showed a positive correlation with dose of b-hGH, being increased by 40 and 47% in the 8.0 mg group and 34 and 48% in the 16.0 mg group compared with the saline group. During the 7 days of injection before operation serum insulin-like growth factor I (IGF-I) decreased in the saline group, was unchanged in the group given 2.0 and 4.0 mg b-hGH, and was increased in the groups given 8.0 and 16.0 mg b-hGH. Postoperatively, no changes in se-IGF-I were seen in any of the groups when compared to the values at operation. Blood glucose was unaffected by b-hGH treatment. Postoperatively the saline-treated rats showed an 8% weight loss and the 2.0 mg b-hGH group a 3% weight loss, whereas no significant changes were seen postoperatively in the 4.0, 8.0, and 16.0 mg b-hGH groups.(ABSTRACT TRUNCATED AT 250 WORDS)
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