Browse Items · NEOMED Bibliography Database

On the mechanism of bile acid inhibition of rat sterol 12alpha-hydroxylase gene (CYP8B1) transcription: roles of alpha-fetoprotein transcription factor and hepatocyte nuclear factor 4alpha.

The sterol 12alpha-hydroxylase (CYP8B1) is a key enzyme of the bile acid biosynthetic pathway. It regulates the composition of bile acids in bile, i.e. ratio between cholic acid (CA) and chenodeoxycholic acid (CDCA). In similarity with cholesterol…

Peroxisome proliferator-activated receptor alpha (PPARalpha) and agonist inhibit cholesterol 7alpha-hydroxylase gene (CYP7A1) transcription.

Fibrates are widely used hypolipidemic drugs that regulate the expression of many genes involved in lipid metabolism by activating the peroxisome proliferator-activated receptor alpha (PPARalpha). The objective of this study was to investigate the…

Tags: *DNA-Binding Proteins, *Regulatory Sequences, 2000, Animals, Anticholesteremic Agents/pharmacology, Basic Helix-Loop-Helix Leucine Zipper Transcription Factors, Binding Sites, Chiang J Y, Cholesterol 7-alpha-Hydroxylase/biosynthesis/*genetics, Clofibric Acid/pharmacology, Cytoplasmic and Nuclear/*agonists, Department of Integrative Medical Sciences, Enzymologic, Gene Expression Regulation, Genes, Genetic, Hepatocyte Nuclear Factor 4, Humans, Journal of lipid research, Liver/metabolism, Marrapodi M, Models, NEOMED College of Medicine, Nucleic Acid, Peroxisome Proliferators/pharmacology, Phosphoproteins/metabolism, Promoter Regions, Protein Binding, Pyrimidines/pharmacology, Rats, Receptors, Reporter, Response Elements, Retinoic Acid/metabolism, Retinoid X Receptors, Species Specificity, Transcription, Transcription Factors/*agonists/metabolism, Transcriptional Activation

Regulation of human sterol 27-hydroxylase gene (CYP27A1) by bile acids and hepatocyte nuclear factor 4alpha (HNF4alpha).

Mitochondrial sterol 27-hydroxylase (CYP27A1) catalyses sterol side-chain oxidation of bile acid synthesis from cholesterol, and the first reaction of the acidic bile acid biosynthetic pathway. Hydrophobic bile acids suppress human CYP27A1 gene…

Tags: *DNA-Binding Proteins, 2003, Base Sequence, Basic Helix-Loop-Helix Leucine Zipper Transcription Factors, Bile Acids and Salts/*pharmacology, Binding Sites/genetics, Cell Line, Chen Wenling, Chenodeoxycholic Acid/pharmacology, Chiang John Y L, Cholestanetriol 26-Monooxygenase, Cloning, Cultured, Cytoplasmic and Nuclear/genetics/metabolism, Department of Integrative Medical Sciences, DNA, DNA/chemistry/genetics, Dose-Response Relationship, Drug, gene, Gene Expression Regulation/drug effects, Genetic/*genetics, Hepatocyte Nuclear Factor 4, Humans, Luciferases/genetics/metabolism, Molecular, Molecular Sequence Data, Mutagenesis, Mutation, NEOMED College of Medicine, Phosphoproteins/genetics/*metabolism, Promoter Regions, Receptors, Recombinant Fusion Proteins/genetics/metabolism, Response Elements/genetics, Sequence Analysis, Site-Directed, Steroid Hydroxylases/*genetics, Transcription Factors/genetics/*metabolism, Transfection, Tumor Cells

Transcriptional regulation of the human sterol 12alpha-hydroxylase gene (CYP8B1): roles of heaptocyte nuclear factor 4alpha in mediating bile acid repression.

Sterol 12alpha-hydroxylase catalyzes the synthesis of cholic acid and controls the ratio of cholic acid over chenodeoxycholic acid in the bile. Transcription of CYP8B1 is inhibited by bile acids, cholesterol, and insulin. To study the mechanism of…

Browse Items (4 total)

On the mechanism of bile acid inhibition of rat sterol 12alpha-hydroxylase gene (CYP8B1) transcription: roles of alpha-fetoprotein transcription factor and hepatocyte nuclear factor 4alpha.

Peroxisome proliferator-activated receptor alpha (PPARalpha) and agonist inhibit cholesterol 7alpha-hydroxylase gene (CYP7A1) transcription.

Regulation of human sterol 27-hydroxylase gene (CYP27A1) by bile acids and hepatocyte nuclear factor 4alpha (HNF4alpha).

Transcriptional regulation of the human sterol 12alpha-hydroxylase gene (CYP8B1): roles of heaptocyte nuclear factor 4alpha in mediating bile acid repression.