Sduringthemetabolicstudy.Hyperlipidemicsubjectsoftenhave delayedLDLapoB-100catabolism(seesupplementalTable S3).Wehavedocumentedalsothatfeedingresultsinmore directTRLapoB-100catabolismandlessconversionofTRL apoB-100toLDLapoB-100,aswellasdelayedLDLapoB-100 catabolism,comparedwiththefastingstate(29).In spite of thedifferences,ourfindingsareconsistentwiththesepreviousstudiesandsupporttheconceptthatapoBinsdLDLs iscatabolizedmoreslowlythanapoBinlbLDLs. Our data indicate that approximately 80 of lbLDL apoB-100isderivedfromTRLapoB-100,withtheremainderMetabolism and proteomics of LDL subfractionsTABLE three. ApolipoproteincompositionoflbLDLandsdLDLduringplaceboandtreatmentwithrosuvastatin40mg/dayPlacebo(totalproteinspectralintensity,logbase2) Proteins lbLDL sdLDL PbRosuvastatin(totalproteinspectralintensity,logbase2)…