title: Comparison of the inhibitory effects of retinoids on 12-O-tetradecanoylphorbol-13-acetate-induced epidermal ornithine decarboxylase activities in CD-1 and Sencar mice.
abstract: Linear regression analysis of the dose levels of a series of retinoids required ornithine decarboxylase (ODC) induction by 50% indicated that there was no significant difference in inhibitory activity between CD-1 and Sencar mice (r = 0.9699; P less than 0.001). The ID50 values (nmol) found were as follows: retinoic acid (0.20, CD-1; 0.29, Sencar); 13-cis-retinoic acid (1.4, CD-1; 1.9, Sencar); 4-[2-(5,6,7,8-tetrahydro-5,5,8, 8-tetramethyl-2-naphthalenyl)-1E-propenyl]benzoic acid (0.04, CD-1; 0.03; Sencar); 2-[1-(4-carboxyphenyl)-1E-propeny-2-yl]-4,5,6,7-tetrahydro-4, 4-dimethylbenzothiophene (0.08, CD-1; 0.14, Sencar); 2-[1-(4-carboxyphenyl)-1E-propen-2-yl]3, 4-dihydro-4,4-dimethyl-2H-1-benzothiopyran (0.56, CD-1; 0.70, Sencar); 6-(5,6,7,8-tetrahydro-5,5,8, 8-tetramethyl-2-naphthalenyl)-2-naphthalenecarboxylic acid (1.0, CD-1; 0.90, Sencar).
mesh_terms: D000818:Animals; D004305:Dose-Response Relationship, Drug; D005260:Female; D015474:Isotretinoin; D051379:Mice; D008815:Mice, Inbred Strains; D009955:Ornithine Decarboxylase / Q000032:analysis*; D010704:Phorbols / Q000494:pharmacology*; D012176:Retinoids / Q000494:pharmacology*; D012867:Skin / Q000187:drug effects* / Q000201:enzymology; D013755:Tetradecanoylphorbol Acetate / Q000494:pharmacology*; D013997:Time Factors; D014212:Tretinoin / Q000494:pharmacology
chemical_list: D010704:Phorbols; D012176:Retinoids; D014212:Tretinoin; D009955:Ornithine Decarboxylase; D015474:Isotretinoin; D013755:Tetradecanoylphorbol Acetate