07/01/1980 - "Application of 5,6-epoxyretinoic acid either concurrently with or 1 hr after each application of TPA to the initiated mouse skin inhibited the formation of skin tumors as effectively as did retinoic acid. "
07/01/1980 - "Inhibition of skin tumor promotion by retinoic acid and its metabolite 5,6-epoxyretinoic acid."
07/01/1980 - "The ability of 5,6-epoxyretinoic acid, a biologically active metabolites of retinoic acid, to inhibit both the induction of ornithine decarboxylase (ODC) activity and skin tumor promotion by 12-O-tetradecanoylphorbol-13-acetate (TPA) was evaluated. "
|1.||Tretinoin (Retinoic Acid)
|2.||Ornithine Decarboxylase (Decarboxylase, Ornithine)