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  • Metabolic Messengers
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Metabolic Messengers: glucagon

Abstract

Plasma glucose is tightly regulated via the secretion of the two glucose-regulating hormones insulin and glucagon. Situated next to the insulin-secreting β-cells, the α-cells produce and secrete glucagon—one of the body’s few blood glucose-increasing hormones. Diabetes is a bihormonal disorder, resulting from both inadequate insulin secretion and dysregulation of glucagon. The year 2023 marks the 100th anniversary of the discovery of glucagon, making it particularly timely to highlight the roles of this systemic metabolic messenger in health and disease.

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Fig. 1: Timeline of important discoveries in glucagon research.
Fig. 2: Tissue regulation by glucagon.
Fig. 3: Regulation of glucagon secretion.

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Acknowledgements

P.E.M. holds the Canada Research Chair in Islet Biology and his work was funded by grants from the Canadian Institutes of Health Research (CIHR; FS 148451), the National Institutes of Health (NIH; R01DK126482; U01DK123716; U01DK120447) and CIHR/JDRF/Diabetes Canada (TG 179092; SRA-2021-1149-S-B). P.R.’s studies are supported by the RCUK Medical Research Council (MR/VO11979/1), The Leona M. and Harry B. Helmsley Charitable Trust (G-1912-03553 & G-2305-06047) and the Swedish Research Council (grant no: 2013-7107).

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MacDonald, P.E., Rorsman, P. Metabolic Messengers: glucagon. Nat Metab 5, 186–192 (2023). https://doi.org/10.1038/s42255-022-00725-3

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