Jejunoileal BypassHyperlipidemiasCholesterolLipidsCholesterol, DietaryCholesterol, HDLCholesterol, LDLLipid MetabolismCholesterol EstersCholesterol OxidaseLipid ALipid BilayersCholesterol 7-alpha-HydroxylaseTriglyceridesLipoproteinsCholesterol, VLDLLipid PeroxidationPhospholipidsAnticholesteremic AgentsHypercholesterolemiaLipoproteins, HDLSterolsSterol O-AcyltransferaseApolipoprotein A-IPhosphatidylcholinesLiverBile Acids and SaltsMembrane MicrodomainsHydroxymethylglutaryl CoA Reductasesbeta-CyclodextrinsLipoproteins, LDLBileLipid Peroxides