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  • Title: Glucagon inhibits triacylglycerol synthesis in isolated hepatocytes by lowering their glycerol 3-phosphate content.
    Author: Declercq PE, Debeer LJ, Mannaerts GP.
    Journal: Biochem J; 1982 Mar 15; 202(3):803-6. PubMed ID: 7092846.
    Abstract:
    Triacylglycerol synthesis by glycogen-depleted hepatocytes from fed rats that have low glycerol 3-phosphate contents was stimulated by the addition of glycerol 3-phosphate precursors. Glucagon decreased triacylglycerol synthesis only when it also lowered glycerol 3-phosphate content. The hyperbolic-like relationship between glycerol 3-phosphate content and rates of triacylglycerol synthesis was identical in the absence or presence of glucagon, indicating that the glucagon effect on triacylglycerol synthesis was not mediated through changes in enzyme activities of the esterification pathway but through changes in cellular glycerol 3-phosphate content.
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