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  • Title: Cyclic guanosine 3':5'-monophosphate and the regulation of lipolysis in rat fat cells.
    Author: Fain JN, Butcher FR.
    Journal: J Cyclic Nucleotide Res; 1976; 2(2):71-8. PubMed ID: 177466.
    Abstract:
    The addition of the divalent cation ionophore A23187, carbachol, norepinephrine or insulin to rat fat cells elevated cyclic GMP. The increase in cyclic GMP due to these agents was greater at 4 than at 2 minutes after their addition. Cyclic GMP accumulation was also elevated by the addition of 0.1 to 0.5 mM sodium oleate in the presence of 0.1% albumin and by albumin containing added palmitate with an FFA/albumin molar ratio of 6.7. The rise in cyclic GMP due to all agents was markedly reduced in calcium-free buffer. The effects of the various agents on cyclic GMP accumulation in rat fat cells had little correlation with lipolysis. Insulin was an effective anti-lipolytic agent in both the presence and absence of calcium while neither A23187 nor carbachol had any effect on fat cell lipolysis.
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