Very low density lipoprotein triglyceride kinetics during hepatic lipase suppression by estrogen. Studies on the physiological role of hepatic endothelial lipase.
The exact role of the heparin-releasable hepatic endothelial lipase has remained controversial. It has been suggested that it acts in concert with lipoprotein lipase in the step-wise delipidation of triglyceride-rich lipoproteins. On the other hand, there is evidence indicating that high density lipoprotein2 is the preferred substrate for hepatic lipase. Here, it is shown that a moderate (27%) suppression of hepatic lipase activity by estrogen did not impair removal of 3H-labeled very low density lipoproteins (VLDL) triglycerides, suggesting that this enzyme is not a major regulator of VLDL catabolism under physiological circumstances.
D004727:Endothelium / Q000201:enzymology; D004958:Estradiol / Q000494:pharmacology; D005260:Female; D006801:Humans; D007700:Kinetics; D008049:Lipase / Q000037:antagonists & inhibitors*; D008071:Lipoprotein Lipase / Q000097:blood; D008079:Lipoproteins, VLDL / Q000097:blood*; D008099:Liver / Q000201:enzymology*; D008875:Middle Aged; D014280:Triglycerides / Q000097:blood*
D008079:Lipoproteins, VLDL; D014280:Triglycerides; C030106:very low density lipoprotein triglyceride; D004958:Estradiol; D008049:Lipase; D008071:Lipoprotein Lipase