Compound 48/80 and the healing of wounds in rats. The effect of timing of drug injections

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Abstract
Wound breaking strength was measured in Long-Evans rats in two settings: in one experiment animals received Compound 48/80 i.p. for 8 consecutive days, starting 1 day before infliction of wound and in the second experiment 48/80 was given for 6 days before wounding. Wound breaking strength was always measured on the seventh day after wounding. There was a significant increase in wound breaking strength in animals treated before incision was made, as compared to controls, saline-treated animals (pp<0.0002). Possible explanation for these opposite results is discussed.