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Abstract
After the debridement of the entire corneal epithelium of the rabbit eye, epithelial cells of conjunctival origin cover the denuded corneal surface. Under such experimental conditions, the rate of wound healing is considerably delayed and total regeneration is completed within 15 to 20 days, allowing evaluation of various drugs, such as the Fibroblast Growth Factor.
Both acidic and basic FGF were administered topically on totally de-epithelialized rabbit eye, at three different concentrations of 1,5 and 10 Stimulation Units / 50 μl, 3 times per day.
A dose-response effect was observed and in each case, acidic FGF was found to be much more potent than bFGF in increasing the rate of wound healing of the cornea. These results are correlated with a new purification procedure, avoiding acid treatment of the tissue extract. The systemic diffusion of FGF allows the contralateral eye cells to be also stimulated for mitosis and migration and to heal faster than the control eyes.
