PMID- 30717427 OWN - NLM STAT- MEDLINE DCOM- 20190225 LR - 20200225 IS - 2072-6643 (Electronic) IS - 2072-6643 (Linking) VI - 11 IP - 2 DP - 2019 Feb 2 TI - Binge-Type Eating in Rats is Facilitated by Neuromedin U Receptor 2 in the Nucleus Accumbens and Ventral Tegmental Area. LID - 10.3390/nu11020327 [doi] LID - 327 AB - Binge-eating disorder (BED) is the most common eating disorder, characterized by rapid, recurrent overconsumption of highly palatable food in a short time frame. BED shares an overlapping behavioral phenotype with obesity, which is also linked to the overconsumption of highly palatable foods. The reinforcing properties of highly palatable foods are mediated by the nucleus accumbens (NAc) and the ventral tegmental area (VTA), which have been implicated in the overconsumption behavior observed in BED and obesity. A potential regulator of binge-type eating behavior is the G protein-coupled receptor neuromedin U receptor 2 (NMUR2). Previous research demonstrated that NMUR2 knockdown potentiates binge-type consumption of high-fat food. We correlated binge-type consumption across a spectrum of fat and carbohydrate mixtures with synaptosomal NMUR2 protein expression in the NAc and VTA of rats. Synaptosomal NMUR2 protein in the NAc demonstrated a strong positive correlation with binge intake of a "lower"-fat (higher carbohydrate) mixture, whereas synaptosomal NMUR2 protein in the VTA demonstrated a strong negative correlation with binge intake of an "extreme" high-fat (0% carbohydrate) mixture. Taken together, these data suggest that NMUR2 may differentially regulate binge-type eating within the NAc and the VTA. FAU - Smith, Ashley E AU - Smith AE AD - Center for Addiction Research, University of Texas Medical Branch, Galveston, TX 77555, USA. aesmith@utmb.edu. AD - Department of Neuroscience, Cell Biology and Anatomy, University of Texas Medical Branch, Galveston, TX 77555, USA. aesmith@utmb.edu. FAU - Kasper, James M AU - Kasper JM AUID- ORCID: 0000-0003-0169-2603 AD - Center for Addiction Research, University of Texas Medical Branch, Galveston, TX 77555, USA. jakasper@utmb.edu. AD - Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX 77555, USA. jakasper@utmb.edu. CN - Ara 13 AD - Center for Addiction Research, University of Texas Medical Branch, Galveston, TX 77555, USA. ara13c@gmail.com. FAU - Anastasio, Noelle C AU - Anastasio NC AD - Center for Addiction Research, University of Texas Medical Branch, Galveston, TX 77555, USA. ncanasta@utmb.edu. AD - Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX 77555, USA. ncanasta@utmb.edu. FAU - Hommel, Jonathan D AU - Hommel JD AUID- ORCID: 0000-0001-8305-3746 AD - Center for Addiction Research, University of Texas Medical Branch, Galveston, TX 77555, USA. jdhommel@utmb.edu. AD - Department of Neuroscience, Cell Biology and Anatomy, University of Texas Medical Branch, Galveston, TX 77555, USA. jdhommel@utmb.edu. AD - Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX 77555, USA. jdhommel@utmb.edu. LA - eng GR - R01DK106229/DK/NIDDK NIH HHS/United States GR - T32DA07287/DA/NIDA NIH HHS/United States GR - KL2TR001441/TR/NCATS NIH HHS/United States GR - R01 DK106229/DK/NIDDK NIH HHS/United States GR - UL1 TR001439/TR/NCATS NIH HHS/United States GR - T32 DA007287/DA/NIDA NIH HHS/United States GR - UL1TR001439/TR/NCATS NIH HHS/United States PT - Journal Article DEP - 20190202 PL - Switzerland TA - Nutrients JT - Nutrients JID - 101521595 RN - 0 (Dietary Carbohydrates) RN - 0 (Dietary Fats) RN - 0 (Neuropeptides) RN - 0 (Receptors, Neurotransmitter) RN - 0 (neuromedin U receptor) RN - 117505-80-3 (neuromedin U) SB - IM MH - Animals MH - Binge-Eating Disorder/*metabolism/psychology MH - Bulimia/*metabolism/psychology MH - Dietary Carbohydrates/administration & dosage MH - Dietary Fats/administration & dosage MH - Eating/psychology MH - Energy Intake/physiology MH - Feeding Behavior/*physiology/psychology MH - Male MH - Neuropeptides/*metabolism MH - Nucleus Accumbens/*metabolism MH - Obesity/psychology MH - Rats, Sprague-Dawley MH - Receptors, Neurotransmitter/*metabolism MH - Ventral Tegmental Area/*metabolism PMC - PMC6412951 OTO - NOTNLM OT - BED OT - NMUR2 OT - binge-eating disorder OT - binge-type eating OT - neuromedin U receptor 2 OT - nucleus accumbens OT - obesity OT - ventral tegmental area COIS- The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results. EDAT- 2019/02/06 06:00 MHDA- 2019/02/26 06:00 PMCR- 2019/02/01 CRDT- 2019/02/06 06:00 PHST- 2018/12/20 00:00 [received] PHST- 2019/01/29 00:00 [revised] PHST- 2019/01/30 00:00 [accepted] PHST- 2019/02/06 06:00 [entrez] PHST- 2019/02/06 06:00 [pubmed] PHST- 2019/02/26 06:00 [medline] PHST- 2019/02/01 00:00 [pmc-release] AID - nu11020327 [pii] AID - nutrients-11-00327 [pii] AID - 10.3390/nu11020327 [doi] PST - epublish SO - Nutrients. 2019 Feb 2;11(2):327. doi: 10.3390/nu11020327.