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  • Title: Effect of some essential amino acid deficiency in the medium on the action of insulin on primary cultured hepatocytes of rats. Hepatocytes do not respond to insulin in some essential amino acid-deficient medium.
    Author: Takenaka A, Ohishi Y, Noguchi T, Naito H.
    Journal: Int J Biochem; 1989; 21(11):1255-63. PubMed ID: 2515077.
    Abstract:
    1. The effects of insulin, glucagon and dexamethasone on the amino acid consumption by primary cultures of rat hepatocytes were studied in a medium containing all essential amino acids or in those deficient in some essential or nonessential amino acids. 2. The cells which were cultured in a medium containing all the essential amino acids responded to insulin by enhancing the consumption of amino acids and augmenting protein synthesis. 3. However, the cells did not respond to insulin significantly when they were cultured in a medium deficient in lysine or some other essential amino acids. 4. The results suggest that some essential amino acid deficiency impairs the transmission of the signal of insulin to the site of the metabolic changes induced by the hormone.
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