PMID: 2118303Sep 1, 1990Paper

Medium-chain-triglyceride lipid emulsion: metabolism and tissue distribution

The American Journal of Clinical Nutrition
R JohnsonW B Rowe

Abstract

The utilization and distribution of radioactively labeled lipid emulsions were evaluated in Sprague-Dawley rats. Animals received one of three lipid emulsions. Group 1 received [14C]medium-chain-triglyceride (MCT) lipid emulsion, group 2 received a 75%:25% (vol:vol) admixture of [14C]MCT: unlabeled long-chain-triglyceride (LCT) lipid emulsion, and group 3 received only [14C]LCT. The radioactive dose appearing in expired carbon dioxide and various body tissues was monitored over a 24-h period. Results indicate that MCT is oxidized more rapidly and completely than in LCT; approximately 90% of the MCT is converted to carbon dioxide with in 24 h compared with 45% for LCT. When MCT and LCT are administered together, the metabolism of MCT is slowed but remains more rapid than that of LCT. Removal of MCT from the blood was more rapid than was removal of LCT, and tissue radioactivity was lower.

Citations

May 20, 2000·Biotechnology & Genetic Engineering Reviews·W M Willis, A G Marangoni
May 2, 2002·The Journal of Nutrition·Jianrong HanWen Guo
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