Comparison of the fat elimination between long-chain triglycerides and medium-chain triglycerides in rats with ischemic acute renal failure

Renal Failure
Yuqiang GeLutan Liao

Abstract

To guide the administration of fat emulsion in the nutritional support of acute renal failure (ARF), pharmacokinetic analysis with an one-compartment open model after bolus intravenous injection was performed to compare the elimination kinetics of long-chain triglycerides (LCT) and medium-chain triglycerides (MCT) in ischemic acute renal failure rats. Sprague-Dawley rats were randomized into four groups, namely LCT normal group, LCT ARF group, MCT normal group and MCT ARF group. The model of ischemic acute renal failure was induced by clamping the left renal artery for 60 min and contralateral nephrectomy. All the rats were fasted with water ad libitum for 10 h before 0.3 g/kg body weight of 10% Intralipid (LCT) or 10% Lipofundin (MCT: LCT = 50:50) was injected as a bolus to them via the tail vein. The serum triglyceride concentration was determined at 2, 10, 40, 70, 100, 130 and 160 min after intravenous injection for kinetic analysis. The results showed that the elimination rate constant (ke) of LCT ARF group was significantly decreased, while the half life period (t1/2) of it was significantly longer than those of LCT normal group. The ke and t1/2 of MCT showed no statistical difference between normal and ARF groups. In the ...Continue Reading

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