DNA-Binding Proteins/agonists; Lipid Metabolism/physiology; Receptors, Cytoplasmic and Nuclear/agonists; 8-Bromo Cyclic Adenosine Monophosphate/pharmacology; ATP Binding Cassette Transporter 1; ATP-Binding Cassette Transporters/genetics; ATP-Binding Cassette Transporters/metabolism; Administration, Oral; Animals; Cholesterol/metabolism; Cholesterol, HDL/blood; Cholesterol, HDL/metabolism; Cyclic AMP/pharmacology; DNA-Binding Proteins/genetics; DNA-Binding Proteins/physiology; Dose-Response Relationship, Drug; Gene Expression Regulation/drug effects; Isoxazoles/pharmacology; Liver/drug effects; Liver/metabolism; Liver X Receptors; Macrophages, Peritoneal/drug effects; Macrophages, Peritoneal/metabolism; Mice; Mice, Inbred C57BL; Mice, Knockout; Molecular Structure; Orphan Nuclear Receptors; Phenylurea Compounds/pharmacology; Protein Isoforms/agonists; Protein Isoforms/genetics; Protein Isoforms/physiology; Pyrazines/pharmacology; RNA, Messenger/genetics; RNA, Messenger/metabolism; Receptors, Cytoplasmic and Nuclear/genetics; Receptors, Cytoplasmic and Nuclear/physiology; Reverse Transcriptase Polymerase Chain Reaction; Sterol Regulatory Element Binding Protein 1/genetics; Sterol Regulatory Element Binding Protein 1/metabolism; Triglycerides/blood; Triglycerides/metabolism