Abstract
In the present investigation, the safety of novel combinational silver sulfadiazine-bFGF-loaded hydrogel was assured by performing acute skin irritation, sensitization, acute dermal toxicity, and eye irritation in compliance with the Organization for Economic Co-operation and Development guidelines. In the skin irritation study, placebo, test, and positive control (0.8% w/v aqueous solution of formaldehyde) were applied on New Zealand rabbits and monitored for abnormal skin responses including erythema and edema. The placebo and test formulation did not induce any adverse reactions and were classified as nonirritating materials. In the skin sensitization test, guinea pigs were sensitized by positive control (0.1% w/v 1-chloro-2,4-dinitrobenzene in 10% of propylene glycol as a standard skin sensitizing agent), placebo, and test formulations. Weak sensitization was observed in the placebo and test formulation treated groups. Additionally, acute dermal toxicity test was performed in Wistar rats, where no signs of toxicity were observed in biochemical, hematological, and histopathological studies. Moreover, the acute eye irritation test was carried out in rabbits and no abnormal clinical signs were evident in the cornea or iris. As...Continue Reading
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