Postheparin plasma triglyceride lipases. Relationships with very low density lipoprotein triglyceride and high density lipoprotein2 cholesterol.

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Abstract
Hepatic triglyceride (HTGL) and lipoprotein lipase (LPL) probably have major roles in the removal of triglyceride from triglyceride-rich lipoprotein and in the formation of high density lipoprotein (HDL). However, no population-based study of their activity and relationship to lipoprotein lipid levels has been reported. To determine these relationships, we recalled 33 men and 17 women of a randomly selected sample of the Lipid Research Clinics Pacific Northwest Bell Telephone Company Health Survey. The subjects were 53 +/- 7 years old (mean +/- SD) with total triglyceride levels of 120 +/- 57 mg/dl and total cholesterol levels of 224 +/- 35 mg/dl. Postheparin plasma LPL activity (127 +/- 61 nmol/min/ml) was not significantly correlated with either age, sex, or adiposity. In contrast, HTGL activity was significantly higher in men (235 +/- 84 nmol/min/ml) than women (170 +/- 91 nmol/min/ml, p less than 0.02), and was correlated with age in men and with adiposity in women. In both men and women, HTGL activit...

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