PMID: 703606Nov 1, 1978Paper

Treatment of hypertriglyceridemia with para-aminosalicylic acid-C: a possible mechanism of action

Metabolism: Clinical and Experimental
A P GoldbergD Porte

Abstract

The effect of para-aminosalicylic acid-C (PAS-C, 8 g/day) on lipid metabolism was studied on a metabolic ward in nine subjects with primary endogenous hypertriglyceridemia. During 2 wk on a basal isocaloric liquid formula diet (40% fat, 45% carbohydrate), PAS-C reduced plasma triglyceride (-41.9 +/- 18.9%, p less than .01, -x +/- SD), cholesterol (-22.8 +/- 12.9%, p less than .005), and a very low density lipoprotein triglyceride (p less than .001) and cholesterol (p less than .01) levels without changing the cholesterol content of low density or high density lipoproteins. Similar effects occurred on a fat-free, 85% carbohydrate diet. Decreases in very low density lipoproteins correlated with changes in both total triglyceride (r = .99, p less than .01) and cholesterol (r = .70, p less than .05). Treatment with PAS-C reduced the plasma triglyceride removal rate related to lipoprotein lipase (-14.6 +/- 14.1%, p less than .02), but did not alter plasma postheparin lipolytic activity or the apparent Km for substrate-enzyme interaction. Kinetic data obtained during the prolonged heparin infusion fit the linearized Michaelis-Menten model for subjects with endogenous hypertriglyceridemia. The reduction in the plasma triglyceride conc...Continue Reading

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