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Ottolenghi C, Puviani AC, Gavioli ME, et al. Glycogenolytic action of glucagon-family peptides and epinephrine on catfish hepatocytes. Fish Physiol Biochem. 1989;6(6):387-94doi: 10.1007/BF01875608.
Ottolenghi, C., Puviani, A. C., Gavioli, M. E., Fabbri, E., Brighenti, L., & Plisetskaya, E. M. (1989). Glycogenolytic action of glucagon-family peptides and epinephrine on catfish hepatocytes. Fish physiology and biochemistry, 6(6), 387-94. https://doi.org/10.1007/BF01875608
Ottolenghi, C, et al. "Glycogenolytic action of glucagon-family peptides and epinephrine on catfish hepatocytes." Fish physiology and biochemistry vol. 6,6 (1989): 387-94. doi: https://doi.org/10.1007/BF01875608
Ottolenghi C, Puviani AC, Gavioli ME, Fabbri E, Brighenti L, Plisetskaya EM. Glycogenolytic action of glucagon-family peptides and epinephrine on catfish hepatocytes. Fish Physiol Biochem. 1989 Nov;6(6):387-94. doi: 10.1007/BF01875608. PMID: 24221691.
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Fish Physiol Biochem. 1989 Nov;6(6):387-94. doi: 10.1007/BF01875608.

Glycogenolytic action of glucagon-family peptides and epinephrine on catfish hepatocytes.

Fish physiology and biochemistry

C Ottolenghi, A C Puviani, M E Gavioli, E Fabbri, L Brighenti, E M Plisetskaya

Affiliations

  1. Department of Zoology, University of Washington, 98195, Seatlle, WA, USA.

PMID: 24221691 DOI: 10.1007/BF01875608

Abstract

Glycogenolytic effects of salmon and mammalian glucagons, salmon glucagon-like peptide (GLP) and epinephrine were studied on liver cells isolated from catfish (Ictalurus melas). In spring and summer, salmo-glucagon (3×10(-10) to 3×10(-8) M) was more effective than its mammalian counterpart in the stimulation of glucose release and cAMP synthesis in hepatocytes. GLP was less potent as compared to both glucagons. γ-amylase activity was not affected by the treatment with either glucagon-family peptides or epinephrine.The comparison of the glycogenolytic effects of salmon glucagon to those of epinephrine reveals a greater potency of the latter hormone in the stimulation of cAMP synthesis, glycogen-phosphorylase activity and glucose release. Glycogen content in the liver cells was equally depleted after treatment with both of the two hormones.

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