Journal
JOURNAL OF LIPID RESEARCH
Volume 45, Issue 1, Pages 124-131Publisher
ELSEVIER
DOI: 10.1194/jlr.M300214-JLR200
Keywords
C3adesArg; fatty acid; insulin; leptin
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Postprandial plasma triglyceride (ppTG) and NEFA clearance were stratified by plasma acylation-stimulating protein (ASP) and gender to determine the contribution of fasting ASP in a normal population (70 men; 71 women). In the highest ASP tertile only, ASP decreased over 8 h (90 +/- 9.7 nM to 70 +/- 5.9 nM, P < 0.05 males; 61.9 +/- 4.0 nM to 45.6 +/- 6.2 nM, P < 0.01 females). Fasting ASP correlated positively with ppTG response. ppTG (P < 0.0001, 2-way ANOVA, both genders) and NEFA levels progressively increased from lowest to highest ASP tertile, with the greatest differences in males. By stepwise multiple regression, the best prediction of ppTG was: (fasting ASP + apolipoprotein B + insulin + TG; r = 0.806) for men and (fasting ASP + total cholesterol; r = 0.574) for women. Leptin, body mass index, and other fasting variables did not improve the prediction. Thus, in men and women, ASP significantly predicted ppTG and NEFA clearance and, based on lower ASP, women may be more ASP sensitive than men. EM Plasma ASP may be useful as a fasting variable that will provide additional information regarding ppTG and NEFA clearance.
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