Estradiol benzoate (OVAHORMON®INJECTION; ASKA Pharmaceutical Co. Ltd., Tokyo, Japan) was applied to wounds at 0.75 μg/g/day every day following wounding procedures under inhalational anesthesia [21 (link)]. In brief, estradiol benzoate was applied to cover the wound surface after cleaning the wounds with normal saline. Estradiol benzoate was diluted at 0.75 μg/g in sesame oil (Wako Pure Chemical Industries Ltd., Tokyo, Japan). The sesame oil vehicle was applied at the same dose as estradiol benzoate to wounds every day following wounding.
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