Mean changes in 2H3-leucine incorporation over the course of the tracer infusion in six hypertriglyceridemic patients. Basal enrichment was subtracted (δ M3/M0). Results were obtained for ApoA-I (HDL), ApoA-II (HDL), ApoB100 (VLDL, IDL, and LDL), ApoC-II (VLDL, HDL), ApoC-III (VLDL, HDL), and ApoE (VLDL, HDL). Values are presented as the mean ± SEM.