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  • Title: The displacement of albumin bound bilirubin by free fatty acids in vivo.
    Author: Haefliger S, Magnenat P.
    Journal: Biomedicine; 1978 May; 28(2):109-13. PubMed ID: 580895.
    Abstract:
    Variations in bilirubinaemia in response to alterations of the free fatty acid level was studied in conscious and unstressed Gunn rats. When only one molecule of bilirubin is bound to albumin (without bilirubin overload), no displacement of bilirubin is observed, even if the protein binds as much as 6 molecules of free fatty acids. After overloading with exogenous unconjugated bilirubin, the second site of fixation of bilirubin on albumin is partly occupied; in this situation, a displacement is observed, but only when more than 3.5 molecules of free fatty acids are simultaneously bound to the protein. In vivo, free fatty acids do not spontaneously reach such levels as those responsable for the observed displacement of bilirubin. In the ranges of bilirubin and free fatty acids concentrations likely to be encountered clinically, free fatty acids might not represent an effective agent of displacement for bilirubin, as it is commonly thought.
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