Metabolism of Chylomicrons of Differing Triglyceride Composition.
نویسندگان
چکیده
منابع مشابه
Metabolism of cholesterol-enriched chylomicrons. Catabolism of triglyceride by lipoprotein lipase of perfused heart and adipose tissues.
The chemical and biochemical properties of cholesterol-enriched and cholesterol-poor chylomicrons from rat lymph have been compared. The enriched particles, prepared from cholesterol-containing lipid dispersions, passed into the duodenum, had four to ten times the cholesteryl ester content of the control chylomicrons but had the same content of total "core" (cholesteryl ester + triglyceride) li...
متن کاملStudies on the apoproteins of rat lymph chylomicrons: characterization and metabolism of a new chylomicron-associated apoprotein.
The apoprotein composition of rat lymph chylomicrons and very low density lipoprotein (VLDL) was investigated following isolation and purification by preparative gel electrophoresis. The medium molecular weight apoproteins in the 27,000-60,000 range were characterized by electrophoretic mobility, immunochemical identification, amino acid composition, and molecular weight determination. In addit...
متن کاملRegulation of rat hepatic cholesterol metabolism. Effects of lipoprotein composition on acyl coenzyme A:cholesterol acyltransferase in vivo and in the perfused liver and on hepatic cholesterol secretion.
Lipoproteins that are removed from the circulation by the liver can deliver both cholesterol and triglycerides to the hepatocyte. Relative proportions of these lipids may vary in lipoproteins and, thus, their uptake may have differing effects on cholesterol homeostasis. To study this, lipoproteins containing the same amounts of cholesterol but different amounts of triglyceride were administered...
متن کاملHepatic uptake of chylomicrons and triglyceride emulsions in rats fed diets of differing fat content.
The hepatic removal of plasma chylomicrons was determined for rats fed the following diets: a) containing no triglyceride, b) regular chow diet with 4.5% of its mass as lipid and, c) a corn oil-supplemented chow with triglyceride accounting for 20% of the mass. The fractional hepatic uptake of either radiolabeled chylomicrons or a triglyceride emulsion was reciprocally related to the amount of ...
متن کاملCharacterization of remnants produced during the metabolism of triglyceride-rich lipoproteins of blood plasma and intestinal lymph in the rat.
The metabolism of intravenously injected large and small chylomicrons from intestinal lymph and of very low density lipoproteins from blood plasma was studied in functionally eviscerated "supradiaphragmetic" rats. For studies with lymph lipoproteins, recipient animals were injected with 4-amino-pyrazolopyrimidine 18 h before injection of lipoprotein to prevent secretion of very low density lipo...
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عنوان ژورنال:
- Journal of lipid research
دوره 5 شماره
صفحات -
تاریخ انتشار 1964