ClofibrateHypercholesterolemiaAnticholesteremic AgentsHeptanoic AcidsHyperlipoproteinemia Type IICholesterolPyrrolesCholesterol, DietarySimvastatinHydroxymethylglutaryl-CoA Reductase InhibitorsCholesterol, LDLPravastatinRabbitsLipoproteins, LDLHalofenateArginineReceptors, LDLEndothelium, VascularHypolipidemic AgentsCholesterol, HDLVasodilationNitroprussideLipidsAlkane 1-MonooxygenaseMicrobodiesPeroxisome ProliferatorsHypoglycinsNitric OxideAcetylcholine