Interaction of Chylomicron Remnants and VLDLs During Ultracentrifuge Separation Based on the Svedberg Flotation Rate – Authors’ Response

We thank Drs Stellaard and Lütjohann for their interest in our study and for their question regarding the nature of apoB48-containing lipoprotein particles found in the VLDL1 and VLDL2 density ranges (1). The correspondents are correct in pointing out that chylomicron remnants and apoB100-containing VLDL of liver origin co-exist in the VLDL1 (Sf60-400) and VLDL2 (Sf20-60) fractions, especially after a fat-rich meal.