Studies on hepatic and extrahepatic lipoprotein lipases in protein-calorie malnutrition.
Postheparin serum lipolytic activities (hepatic and extrahepatic), serum free fatty acid, and triglyceride levels were measured in 16 kwashiorkor, 14 marasmic, and 14 control children. The results showed that the reduction in total postheparin lipolytic activity in kwashiorkor was in the activity of hepatic origin. In marasmus, the total postheparin lipolytic activity, hepatic and extrahepatic activities, were within normal range. The was no evidence for the presence of inhibitors of postheparin lipolytic activity in the serum of kwashiorkor or marasmic children. Fasting serum-free fatty acid level was significantly elevated in kwashiorkor, while the level in marasmus was not significantly different from control value. The serum triglyceride levels in both conditions showed no significant differences from the control value. These findings suggest that the defective production of hepatic lipoprotein lipase, as well as increased influx of free fatty acid into the liver, could account for the accumulation of fat in the liver of kwashiorkor and not in that of marasmic children.[1]References
- Studies on hepatic and extrahepatic lipoprotein lipases in protein-calorie malnutrition. Agbedana, E.O., Johnson, A.O., Taylor, G.O. Am. J. Clin. Nutr. (1979) [Pubmed]
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