TABLE 1.

Percentage composition of chylomicron particle mass

% Particle Mass
Genotype	Protein	PL	FC	TG	CE	Surface to Core
ACAT2	5.0 ± 0.7	11.7 ± 1.4	1.1 ± 0.2a	69.9 ± 3.5a	12.3 ± 1.9a	0.2
ACAT2	4.1 ± 0.6	11.6 ± 0.9	1.2 ± 0.1a	72.0 ± 3.5a	11.1 ± 2.9a	0.2
ACAT2	5.6 ± 1.2	10.8 ± 1.0	1.9 ± 0.1b	80.6 ± 2.1b	1.0 ± 0.4b	0.2

Mass (μg) of protein, phospholipid (PL), free cholesterol (FC), triglyceride (TG), and cholesterol ester (CE) was measured in chylomicrons isolated from 8 hourly collections. The percent composition was calculated by dividing each component mass by the sum of all masses for each chylomicron sample from every time point. The mean percentage of all 8 time points from each animal was calculated for each particle component. The data expressed are the overall mean ± SEM for each genotype (n = 5/genotype). The surface-to-core ratio was calculated by dividing the sum of protein, PL, and FC by the sum of TG and CE. Different superscript letters denote statistically significant difference (P < 0.05) within the same column as measured by one-way ANOVA and Tukey posthoc tests.