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  • Title: Impaired plasma amino-acid clearance in patients with cirrhosis of the liver and portocaval shunt--its relation to insulin resistance.
    Author: Ferenci P, Bratusch-Marrain P, Waldhäusl WK, Nowotny P, Korn A.
    Journal: Eur J Clin Invest; 1984 Aug; 14(4):255-61. PubMed ID: 6434319.
    Abstract:
    To study the interdependence of utilization of branched chain amino acids and glucose and of hyperinsulinaemia in patients with liver cirrhosis the plasma disappearance of glucose and amino acids was estimated in seven patients with cirrhosis and portocaval shunt and in seven healthy controls following infusion of glucose and essential amino acids during suppression of endogenous hormone release by somatostatin. Exogenous insulin was infused by means of an automated glucose controlled insulin infusion system. The data demonstrate that (i) insulin requirement almost doubled in patients as compared to controls to obtain similar blood glucose responses to i.v. glucose, and (ii) the plasma disappearance rates of the infused amino acids were reduced in the patients as compared to controls despite hyperinsulinaemia sufficient to achieve normal glucose assimilation. Thus, in cirrhotic patients insulin resistance may be overcome by excess insulin as far as glucose homoestasis is concerned, whereas amino-acid metabolism still remains impaired.
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