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Hansen, J.S.* ; Clemmesen, J.O.* ; Secher, N.H.* ; Hoene, M.* ; Drescher, A.* ; Weigert, C. ; Pedersen, B.K.* ; Plomgaard, P.*

Glucagon-to-insulin ratio is pivotal for splanchnic regulation of FGF-21 in humans.

Mol. Metab. 4, 551-560 (2015)
DOI PMC
Creative Commons Lizenzvertrag
Open Access Gold möglich sobald Verlagsversion bei der ZB eingereicht worden ist.
BACKGROUND & AIMS: Fibroblast growth factor 21 (FGF-21) is a liver-derived metabolic regulator induced by energy deprivation. However, its regulation in humans is incompletely understood. We addressed the origin and regulation of FGF-21 secretion in humans. METHODS: By determination of arterial-to-venous differences over the liver and the leg during exercise, we evaluated the organ-specific secretion of FGF-21 in humans. By four different infusion models manipulating circulating glucagon and insulin, we addressed the interaction of these hormones on FGF-21 secretion in humans. RESULTS: We demonstrate that the splanchnic circulation secretes FGF-21 at rest and that it is rapidly enhanced during exercise. In contrast, the leg does not contribute to the systemic levels of FGF-21. To unravel the mechanisms underlying the regulation of exercise-induced hepatic release of FGF-21, we manipulated circulating glucagon and insulin. These studies demonstrated that in humans glucagon stimulates splanchnic FGF-21 secretion whereas insulin has an inhibitory effect. CONCLUSIONS: Collectively, our data reveal that 1) in humans, the splanchnic bed contributes to the systemic FGF-21 levels during rest and exercise; 2) under normo-physiological conditions FGF-21 is not released from the leg; 3) a dynamic interaction of glucagon-to-insulin ratio regulates FGF-21 secretion in humans.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter Exercise ; Ffa, Free Fatty Acids ; Fgf-21, Fibroblast Growth Factor-21 ; Hepatic ; Hepatokine ; Liver ; Ppar, Peroxisome Proliferator-activated Receptor
ISSN (print) / ISBN 2212-8778
e-ISSN 2212-8778
Zeitschrift Molecular Metabolism
Quellenangaben Band: 4, Heft: 8, Seiten: 551-560 Artikelnummer: , Supplement: ,
Verlag Elsevier
Verlagsort Amsterdam
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Diabetes Research and Metabolic Diseases (IDM)