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SHR Neuro Krebs Kardio Lipid Stoffw Microb

Song, P; Zechner, C; Hernandez, G; Cánovas, J; Xie, Y; Sondhi, V; Wagner, M; Stadlbauer, V; Horvath, A; Leber, B; Hu, MC; Moe, OW; Mangelsdorf, DJ; Kliewer, SA.
The Hormone FGF21 Stimulates Water Drinking in Response to Ketogenic Diet and Alcohol.
Cell Metab. 2018; 27(6):1338-1347 Doi: 10.1016/j.cmet.2018.04.001 [OPEN ACCESS]
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Co-Autor*innen der Med Uni Graz
Horvath Angela
Leber Bettina
Stadlbauer-Köllner Vanessa
Wagner Martin

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Alcohol and ketogenic diets increase water consumption. Here, we show that the hormone FGF21 is required for this drinking response in mice. Circulating levels of FGF21 are increased by alcohol consumption in humans and by both alcohol and ketogenic diets in mice. Pharmacologic administration of FGF21 stimulates water drinking behavior in mice within 2 hr. Concordantly, mice lacking FGF21 fail to increase water intake in response to either alcohol or a ketogenic diet. The effect of FGF21 on drinking is mediated in part by SIM1-positive neurons of the hypothalamus and is inhibited by β-adrenergic receptor antagonists. Given that FGF21 also is known to suppress alcohol intake in favor of pure water, this work identifies FGF21 as a fundamental neurotropic hormone that governs water balance in response to specific nutrient stresses that can cause dehydration. Copyright © 2018 Elsevier Inc. All rights reserved.

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