STUDIES OF THE INFLUENCE OF DIET ON CLEARING-FACTOR LIPASE (CFL) AND BLOOD LIPID LEVELS OF A PATIENT WITH HYPERLIPIDEMIA

A 30-year-old man was studied who had hyperlipidemia of a hereditary nature which was at first thought to be refractory to changes in diet. It was subsequently shown that the lipemia was adequately controlled by diet. The patient had no defect in his ability to produce clearing-factor lipase (CFL) following heparin injection, his chylomicra were not refractory to CFL, and his plasma showed no more than ordinary inhibitory activity against CFL. Under dietary conditions which resulted in a high degree of lipemia, much of the CFL was rendered inactive by adsorption on the chylomicra. The results suggest that the role of CFL in patients with hyperlipidemia may be minor.