The relation of plasma triglyceride, apolipoprotein B, and high-density lipoprotein cholesterol to postheparin lipoprotein lipase activity is dependent on apolipoprotien E polymorphism

Metabolism: Clinical and Experimental
J St-AmandJ P Després

Abstract

Postheparin plasma (PH)-lipoprotein lipase (LPL) activity has been reported to be a significant correlate of plasma triglyceride and high-density lipoprotein cholesterol (HDL-C) levels. However, some studies have failed to observe these associations. In this regard, apolipoprotein (apo) E polymorphism may play an important role, since the apo E2 isoform has unfavorable effects on the catabolism of triglyceride-rich lipoprotein particles. We have thus examined the relationships between PH-LPL activity and plasma lipoprotein-lipid levels within groups of men classified on the basis of apo E phenotypes, to verify whether apo E polymorphism could alter these associations. In men carrying the apo E2 isoform (n = 12), PH-LPL activity showed a strong negative correlation with plasma triglyceride (r = -.72, P < .01), very-low-density lipoprotein (VLDL) triglyceride ([VLDL-TG] r = -.83, P < .001), and VLDL cholesterol ([VLDL-C] r = -.57, P < .05) levels and a positive correlation with plasma HDL-C (r = .87, P < .001) and HDL2-C (r=.90, P < .001) concentrations. These correlations were also noted for plasma apo B levels (r = -.65, P < .05), VLDL-apo B concentrations (r= -.76, P < .01), and the HDL-C to cholesterol ratio (r = .85, P < .00...Continue Reading

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Citations

Dec 16, 1996·Annals of the New York Academy of Sciences·Y J KwonN R Relkin
Feb 18, 2003·Journal of Lipid Research·Charles CouillardJean Bergeron
Feb 13, 2001·Atherosclerosis·I LemieuxJ P Després
Mar 21, 2007·Clinica Chimica Acta; International Journal of Clinical Chemistry·Marilu FiegenbaumMara H Hutz

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