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  • Title: Effects of L-carnitine administration on short-chain fatty acid (acetic acid) and long-chain fatty acid metabolism during hemodialysis.
    Author: Maeda K, Shinzato T, Kobayakawa H.
    Journal: Nephron; 1989; 51(3):355-61. PubMed ID: 2918947.
    Abstract:
    The purpose of the study is to investigate the effects of L-carnitine on the exogenous acetate metabolism during hemodialysis together with the triglyceride and free fatty acid metabolism. Sixteen chronic renal failure patients on acetate dialysis were orally administered 1,200 mg of L-carnitine chloride per day for 12 weeks. Plasma triglyceride concentrations at 30 and 60 min following initiation of hemodialysis were significantly lower than before hemodialysis, while the plasma concentrations of free fatty acid at the same points into hemodialysis were significantly higher than before hemodialysis, whether L-carnitine chloride was being given or not. This is attributed to the enhanced degradation of triglyceride and the increased generation of the free fatty acid with heparin administration during hemodialysis. The L-carnitine chloride treatment did not affect the plasma triglyceride concentrations at 30 and 60 min into hemodialysis, whereas the free fatty acid concentrations at the same points into hemodialysis were significantly lower after L-carnitine chloride administration commenced than before it. This is attributed to the fact that fatty acid oxidation was enhanced following the L-carnitine chloride treatment. Compared to before the drug administration, the whole body clearance of exogenous acetate was significantly increased after the drug was given, and the plasma acetate level during hemodialysis fell accordingly. This is attributed to the fact that with L-carnitine chloride administration, the amount of accumulated acyl-CoA in the cytosol decreased and consequently the citrate cycle function increased.
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