Percent transfer of 3H-FC and 14C-PL from lipid emulsion to LDL and HDL obtained from fasting human plasma control, post-heparin with and without addition of a lipase inhibitor, tetrahydrolipstatin (THL) incubated for 30 minutes at zero (ice) and at 37°C. Plasma lipoproteins were fractionated by FPLC. Percent transfer was calculated as the difference between values obtained at 37°C and 0°C. Results are expressed as median (range), n=12. Mann-Whitney test: a: p< 0.001 (HDL vs. LDL) ; b: p<0.001 (post-heparin vs. control) and c: p<0.01 (post-heparin vs. post-heparin+THL).