The origin of lipoprotein in the intestinal and hepatic lymph of unsuckled new-born calves

The Journal of Physiology
A K Lascelles, J C Wadsworth

Abstract

1. Experiments have been conducted to determine the origin and character of the lipid in thoracic duct lymph of new-born, unsuckled calves. This involved the collection and analysis of intestinal and hepatic lymph from two bile-fistulated and seven non-fistulated animals.2. The output of total esterified fatty acid in intestinal and hepatic lymph in the unfed calf after recovery from the anaesthetic was about 0.6 and 0.025 g/hr, respectively.3. Three lipoprotein fractions were obtained by ultracentrifugation of intestinal lymph samples. These appeared to correspond to very low- (d < 1.005), low- (1.2 > d < 1.005) and high- (d = 1.20) density lipoprotein of human serum. These lipoproteins contained approximately 40%, 50% and 10% respectively of the total lipid.4. Very low-density lipoprotein was not found in blood serum or hepatic lymph and it was evident that very low-density lipoprotein and most of the low-density lipoprotein in intestinal lymph were derived from sources other than the capillary filtrate.5. The output of total esterified fatty acid in intestinal lymph fell steadily during the course of an 11-16 hr period of bile deprivation to values 55% of those in comparable calves without bile fistulae. This was accompanied...Continue Reading

Citations

Nov 1, 1988·Journal of Dairy Science·K J JenkinsJ K Kramer
Dec 1, 1993·Journal of Dairy Science·D Bauchart
Aug 18, 2020·Seminars in Interventional Radiology·Maxim ItkinSaebeom Hur
Feb 19, 2020·American Journal of Physiology. Gastrointestinal and Liver Physiology·Gracia GraciaNatalie L Trevaskis

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