Jejunoileal BypassHyperlipidemiasReceptors, Retinoic AcidRetinoid X ReceptorsRetinoidsTretinoinRetinoid X Receptor alphaTetrahydronaphthalenesFenretinideTranscription FactorsKeratolytic AgentsRetinal DehydrogenaseBenzoatesVitamin ACarcinoma, EmbryonalRetinoid X Receptor gammaReceptors, Thyroid HormoneVitamin A DeficiencyTranscriptional ActivationReceptors, Cytoplasmic and NuclearTeratogensRNA, MessengerAldehyde OxidoreductasesDimerizationTumor Cells, CulturedMolecular Sequence DataSignal TransductionCell DivisionBase SequenceRetinoid X Receptor betaGene Expression RegulationAntineoplastic AgentsReceptors, SteroidCell DifferentiationChromansCOUP Transcription Factor IIn Situ Hybridization