PMID- 26863991 OWN - NLM STAT- MEDLINE DCOM- 20170106 LR - 20220129 IS - 1463-1326 (Electronic) IS - 1462-8902 (Print) IS - 1462-8902 (Linking) VI - 18 IP - 5 DP - 2016 May TI - L-arginine promotes gut hormone release and reduces food intake in rodents. PG - 508-18 LID - 10.1111/dom.12644 [doi] AB - AIMS: To investigate the anorectic effect of L-arginine (L-Arg) in rodents. METHODS: We investigated the effects of L-Arg on food intake, and the role of the anorectic gut hormones glucagon-like peptide-1 (GLP-1) and peptide YY (PYY), the G-protein-coupled receptor family C group 6 member A (GPRC6A) and the vagus nerve in mediating these effects in rodents. RESULTS: Oral gavage of L-Arg reduced food intake in rodents, and chronically reduced cumulative food intake in diet-induced obese mice. Lack of the GPRC6A in mice and subdiaphragmatic vagal deafferentation in rats did not influence these anorectic effects. L-Arg stimulated GLP-1 and PYY release in vitro and in vivo. Pharmacological blockade of GLP-1 and PYY receptors did not influence the anorectic effect of L-Arg. L-Arg-mediated PYY release modulated net ion transport across the gut mucosa. Intracerebroventricular (i.c.v.) and intraperitoneal (i.p.) administration of L-Arg suppressed food intake in rats. CONCLUSIONS: L-Arg reduced food intake and stimulated gut hormone release in rodents. The anorectic effect of L-Arg is unlikely to be mediated by GLP-1 and PYY, does not require GPRC6A signalling and is not mediated via the vagus. I.c.v. and i.p. administration of L-Arg suppressed food intake in rats, suggesting that L-Arg may act on the brain to influence food intake. Further work is required to determine the mechanisms by which L-Arg suppresses food intake and its utility in the treatment of obesity. CI - (c) 2016 The Authors. Diabetes, Obesity and Metabolism published by John Wiley & Sons Ltd. FAU - Alamshah, A AU - Alamshah A AD - Section of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK. FAU - McGavigan, A K AU - McGavigan AK AD - Section of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK. FAU - Spreckley, E AU - Spreckley E AD - Section of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK. FAU - Kinsey-Jones, J S AU - Kinsey-Jones JS AD - Section of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK. FAU - Amin, A AU - Amin A AD - Section of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK. FAU - Tough, I R AU - Tough IR AD - Wolfson Centre for Age-Related Diseases, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK. FAU - O'Hara, H C AU - O'Hara HC AD - Section of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK. FAU - Moolla, A AU - Moolla A AD - Section of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK. FAU - Banks, K AU - Banks K AD - Section of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK. FAU - France, R AU - France R AD - Section of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK. FAU - Hyberg, G AU - Hyberg G AD - AstraZeneca R&D, Molndal, Sweden. FAU - Norton, M AU - Norton M AD - Section of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK. FAU - Cheong, W AU - Cheong W AD - Section of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK. FAU - Lehmann, A AU - Lehmann A AD - AstraZeneca R&D, Molndal, Sweden. AD - Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden. FAU - Bloom, S R AU - Bloom SR AD - Section of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK. FAU - Cox, H M AU - Cox HM AD - Wolfson Centre for Age-Related Diseases, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK. FAU - Murphy, K G AU - Murphy KG AD - Section of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK. LA - eng GR - BB/E52708X/1/BB_/Biotechnology and Biological Sciences Research Council/United Kingdom GR - NC/K500379/1/NC3RS_/National Centre for the Replacement, Refinement and Reduction of Animals in Research/United Kingdom GR - G0802390/MRC_/Medical Research Council/United Kingdom GR - MR/J010944/1/MRC_/Medical Research Council/United Kingdom GR - G7811974/MRC_/Medical Research Council/United Kingdom GR - G0000566/MRC_/Medical Research Council/United Kingdom GR - BB/I001816/1/BB_/Biotechnology and Biological Sciences Research Council/United Kingdom PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20160401 PL - England TA - Diabetes Obes Metab JT - Diabetes, obesity & metabolism JID - 100883645 RN - 0 (Appetite Depressants) RN - 0 (GPRC6A protein, mouse) RN - 0 (Gastrointestinal Agents) RN - 0 (Receptors, G-Protein-Coupled) RN - 106388-42-5 (Peptide YY) RN - 89750-14-1 (Glucagon-Like Peptide 1) RN - 94ZLA3W45F (Arginine) SB - IM MH - Animals MH - Appetite Depressants/administration & dosage/adverse effects/pharmacology/*therapeutic use MH - Arginine/administration & dosage/adverse effects/*therapeutic use MH - Cells, Cultured MH - *Dietary Supplements/adverse effects MH - Energy Intake/drug effects MH - Energy Metabolism/drug effects MH - Gastrointestinal Agents/administration & dosage/adverse effects/pharmacology/*therapeutic use MH - Glucagon-Like Peptide 1/*agonists/blood/metabolism MH - In Vitro Techniques MH - Injections, Intraperitoneal MH - Injections, Intraventricular MH - Intestinal Mucosa/cytology/drug effects/metabolism/pathology MH - Male MH - Mice, Inbred C57BL MH - Mice, Knockout MH - Obesity/*diet therapy/drug therapy/metabolism/pathology MH - Peptide YY/*agonists/blood/metabolism MH - Random Allocation MH - Rats, Wistar MH - Receptors, G-Protein-Coupled/agonists/antagonists & inhibitors/genetics/metabolism MH - Weight Loss/drug effects PMC - PMC4982043 OTO - NOTNLM OT - GLP-1 OT - animal pharmacology OT - body composition OT - energy regulation OT - obesity therapy EDAT- 2016/02/13 06:00 MHDA- 2017/01/07 06:00 PMCR- 2016/08/12 CRDT- 2016/02/12 06:00 PHST- 2015/11/13 00:00 [received] PHST- 2016/01/31 00:00 [revised] PHST- 2016/02/07 00:00 [accepted] PHST- 2016/02/12 06:00 [entrez] PHST- 2016/02/13 06:00 [pubmed] PHST- 2017/01/07 06:00 [medline] PHST- 2016/08/12 00:00 [pmc-release] AID - DOM12644 [pii] AID - 10.1111/dom.12644 [doi] PST - ppublish SO - Diabetes Obes Metab. 2016 May;18(5):508-18. doi: 10.1111/dom.12644. Epub 2016 Apr 1.