Studies on the tolerance of medium chain triglycerides in dogs.
Two groups of five conscious dogs received total parenteral nutrition (about 100 kcal/kg body weight per 24 hr) continuously for 96 hr (0.28 g triglycerides/kg body weight per hr, constituting more than 55% of the energy supply). The only difference between the two groups was the nature of the 20% lipid emulsion. In one group, this emulsion contained only long-chain triglycerides (LCTs), and in the other it contained a mixture (vol/vol) of medium chain triglycerides (MCTs) and LCTs. MCTs thus were given in an amount of about 30% of the total energy supplied. During infusion with the MCT/LCT mixture, C8, C10, and C12 fatty acids appeared in the total plasma fatty acids. When the infusion was stopped, the medium-chain fatty acids disappeared; those with shorter chains did so more rapidly. The plasma triglyceride clearance was faster for the MCT/LCT mixture than for the LCTs, whereas phospholipid and cholesterol clearance seemed slower for the MCT/LCT mixture. With this mixture, there was a slight increase in the plasma concentrations of ketone bodies, lactate, and pyruvate, and a slight decrease in plasma glucose. The MCT/LCT mixture was well tolerated, causing no discernible problems, and, in particular, no signs of narcosis or encephalopathy.[1]References
- Studies on the tolerance of medium chain triglycerides in dogs. Grancher, D., Jean-Blain, C., Frey, A., Schirardin, H., Bach, A.C. JPEN. Journal of parenteral and enteral nutrition. (1987) [Pubmed]
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