Abstract
Needle biopsies of adipose tissue and blood samples were obtained before and at short intervals after a “bolus” injection of 10% Intralipid. Lipoprotein lipase activities were measured in acetone-ether extracts of the tissue samples. Levels of serum triglyceride began to fall less than 5 min after the injection of the Intralipid with a half-life of 20 min. During this time interval, no significant changes were observed in the activities of lipoprotein lipase in adipose tissue. A patient with a severe hypertriglyceridaemia (Type V) underwent plasma exchange with a reduction in serum triglyceride levels from 11 to 4 mm /1. There was a parallel fall in adipose tissue lipoprotein lipase activity. We conclude that lipoprotein lipase activity in adipose tissue is unaltered during experimental hypertriglyceridaemia and that the activity of the enzyme in adipose tissue is probably not reduced as a secondary feature of an elevated plasma triglyceride level.
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