1
|
Parron Paim M, Nornberg Strelow D, Devantier Krüger L, Sander Magalhães L, Hall TK, Brüning CA, Folharini Bortolatto C. Intermittent access to sugary drinks associated with fasting induces overeating and depressive-like behavior in female C57BL/6J mice. Neuroscience 2024; 560:20-35. [PMID: 39293731 DOI: 10.1016/j.neuroscience.2024.09.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 08/31/2024] [Accepted: 09/13/2024] [Indexed: 09/20/2024]
Abstract
Binge eating disorder is the most prevalent eating disorder, affecting both sexes but more commonly found in women. Given the frequent co-occurrence of psychiatric disorders, this study aimed to establish a standardized experimental intermittent protocol to investigate overeating associated with depression. A 10-day protocol induced uncontrolled eating behavior in C57BL/6J female mice. The first experiment included the following groups: naive group (chow ad libitum), control group (chow and sucrose solution ad libitum), and fasting groups (16 and 20 h) exposed to an intermittent sucrose solution (10 %) and chow regimen. Subsequently, the feeding test, open field test, elevated plus maze test, tail suspension test, and light/dark conflict test were conducted. Furthermore, monoamine oxidase (MAO) A and B activities in brain structures and plasma corticosterone levels were assessed. Food overconsumption and depressive-like behavior were observed in both sucrose fasting groups, while risk-taking behaviors were specifically observed in the 20-hour fasting sucrose group. While both fasting sucrose groups caused reduced hippocampal MAO-A activity, only the F20 sucrose group inhibited MAO-B in the cortex and hypothalamus. Moreover, both fasting sucrose groups exhibited elevated corticosterone levels. In a separate design (Experiment 2), groups with 16 and 20 h of fasting alone (without sucrose) did not show the same behavioral results as the intermittent fasting sucrose groups, thus avoiding fasting bias. Based on these results, the 20-hour sucrose fasting group was chosen as the ideal protocol for mimicking overeating behavior associated with depression to investigate future therapeutic approaches for this comorbidity.
Collapse
Affiliation(s)
- Mariana Parron Paim
- Programa de Pós-graduação em Bioquímica e Bioprospecção, Laboratório de Bioquímica e Neurofarmacologia Molecular (LABIONEM), Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA), Universidade Federal de Pelotas (UFPel), CEP 96010-900 Pelotas, RS, Brazil
| | - Dianer Nornberg Strelow
- Programa de Pós-graduação em Bioquímica e Bioprospecção, Laboratório de Bioquímica e Neurofarmacologia Molecular (LABIONEM), Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA), Universidade Federal de Pelotas (UFPel), CEP 96010-900 Pelotas, RS, Brazil
| | - Letícia Devantier Krüger
- Programa de Pós-graduação em Bioquímica e Bioprospecção, Laboratório de Bioquímica e Neurofarmacologia Molecular (LABIONEM), Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA), Universidade Federal de Pelotas (UFPel), CEP 96010-900 Pelotas, RS, Brazil
| | - Larissa Sander Magalhães
- Programa de Pós-graduação em Bioquímica e Bioprospecção, Laboratório de Bioquímica e Neurofarmacologia Molecular (LABIONEM), Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA), Universidade Federal de Pelotas (UFPel), CEP 96010-900 Pelotas, RS, Brazil
| | - Tácia Katiane Hall
- Programa de Pós-graduação em Bioquímica e Bioprospecção, Laboratório de Bioquímica e Neurofarmacologia Molecular (LABIONEM), Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA), Universidade Federal de Pelotas (UFPel), CEP 96010-900 Pelotas, RS, Brazil
| | - César Augusto Brüning
- Programa de Pós-graduação em Bioquímica e Bioprospecção, Laboratório de Bioquímica e Neurofarmacologia Molecular (LABIONEM), Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA), Universidade Federal de Pelotas (UFPel), CEP 96010-900 Pelotas, RS, Brazil.
| | - Cristiani Folharini Bortolatto
- Programa de Pós-graduação em Bioquímica e Bioprospecção, Laboratório de Bioquímica e Neurofarmacologia Molecular (LABIONEM), Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA), Universidade Federal de Pelotas (UFPel), CEP 96010-900 Pelotas, RS, Brazil.
| |
Collapse
|
2
|
Patil R, Aswar U, Vyas N. Pterostilbene alleviates cafeteria diet-induced obesity and underlying depression in adolescent male Swiss albino mice and affects insulin resistance, inflammation, HPA axis dysfunction and SIRT1 mediated leptin-ghrelin signaling. Horm Behav 2024; 161:105504. [PMID: 38354494 DOI: 10.1016/j.yhbeh.2024.105504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 02/06/2024] [Accepted: 02/06/2024] [Indexed: 02/16/2024]
Abstract
Cafeteria diet (CD) model for in-vivo studies mimics the western diet having imbalanced nutritional value, high caloric-density and palatability. Uncontrolled eating leads to the development of childhood obesity, poor self-esteem and depression due to its effects on brain development. Herbal supplements are novel inclusion in the management of obesity and mental well-being. Pterostilbene (PTE) found in blueberries and Pterocarpus marsupium heartwood, is known to prevent obesity in invivo models. Adolescent Swiss albino male mice were fed on CD for 70 days and the development of obesity was assessed by gain in body weight, abdominal circumference. Forced swim and tail suspension test confirmed depression in CD fed mice. Obesity induced depressed (OID) mice were treated with PTE (10, 20, 40 mg/kg), standard antiobesity drug cetilistat (10 mg/kg), antidepressant fluoxetine (10 mg/kg) for 28 days. Post treatment, PTE-treated mice showed reduction in BW and depression-like behavior analysed using paradigms such as sucrose preference, open field, marble burying, and resident intruder test in comparison to the CD group. Insulin resistance, lipid profile, antioxidant enzyme, inflammatory cytokines (NF-κB, IL-6, TNF α) and cortisol levels were mitigated by PTE. It also restored normal cellular architecture of the brain and adipose tissue and increased the Silent mating type information regulation 2 homolog1 (SIRT1), leptin and ghrelin receptors gene expression in the brain. Thus, it can be concluded that PTE might have inhibited OID like behavior in mice via inhibition of IR, modulating neuroinflammation and hypothalamic-pituitary-adrenal axis dysfunction and upregulating SIRT1 mediated leptin-ghrelin signaling.
Collapse
Affiliation(s)
- Rashmi Patil
- Poona College of Pharmacy, Bharati Vidyapeeth (Deemed to Be) University, Pune, Maharashtra 411038, India
| | - Urmila Aswar
- Poona College of Pharmacy, Bharati Vidyapeeth (Deemed to Be) University, Pune, Maharashtra 411038, India.
| | - Nishant Vyas
- Logical Life Sciences Private Limited, Pune, India
| |
Collapse
|
3
|
Tseng YC, Fu LC, Chong HC, Tang ST, Yang SC, Huang WC, Yang YCS, Chen YL. Consumption of a Taiwanese cafeteria diet induces metabolic disorders and fecal flora changes in obese rats. Nutrition 2024; 117:112230. [PMID: 37897986 DOI: 10.1016/j.nut.2023.112230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 09/14/2023] [Accepted: 09/17/2023] [Indexed: 10/30/2023]
Abstract
OBJECTIVES Among diet-induced obesity animal models, the cafeteria diet, which contains human junk food and processed foods, is a popular experimental animal diets in Western countries. Consumption of a cafeteria diet can lead to the development of obesity and non-alcoholic liver disease in as soon as 2 mo, which more accurately reflects human eating patterns. The aim of this study was to establish a Taiwanese cafeteria diet and compare it with a traditional lard-based, 60% high-fat diet in a 12-wk animal model. METHODS Six-wk-old male Wistar rats were assigned to the following three groups: control diet (C; LabDiet 5001); high-fat diet (HFD; 60% HFD); and the Taiwanese cafeteria diet (CAF). RESULTS At the end of the study, weight gain and steatosis were observed in the HF and CAF groups. Compared with the HFD group, rats in the CAF group showed significantly higher plasma triacylglycerol concentrations and insulin resistance, which may have been correlated with increased inflammatory responses. Significantly lower hepatic sterol regulatory element-binding protein-1c and insulin receptor substrate-1 protein expressions were observed in the CAF group compared with the HFD group. Additionally, disruption of the microbiotic composition followed by increased obesity-related bacteria was observed in the CAF group. CONCLUSIONS The present study confirmed that the Taiwanese cafeteria diet-induced rat model provided a potential platform for investigating obesity-related diseases.
Collapse
Affiliation(s)
- Yu-Chieh Tseng
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan
| | - Lu-Chi Fu
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan
| | - Ho-Ching Chong
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan
| | - Shu-Ting Tang
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan
| | - Suh-Ching Yang
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan
| | - Wen-Chung Huang
- Graduate Institute of Health Industry Technology, Research Center for Food and Cosmetic Safety, Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Taiwan
| | - Yu-Chen Sh Yang
- Joint Biobank, Office of Human Research, Taipei Medical University, Taipei, Taiwan
| | - Ya-Ling Chen
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan.
| |
Collapse
|
4
|
Fructuoso M, Fernández-Blanco Á, Gallego-Román A, Sierra C, de Lagrán MM, Lorenzon N, De Toma I, Langohr K, Martín-García E, Maldonado R, Dairou J, Janel N, Dierssen M. Exploring the link between hedonic overeating and prefrontal cortex dysfunction in the Ts65Dn trisomic mouse model. Cell Mol Life Sci 2023; 80:370. [PMID: 37989807 PMCID: PMC11072570 DOI: 10.1007/s00018-023-05009-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 10/11/2023] [Accepted: 10/21/2023] [Indexed: 11/23/2023]
Abstract
Individuals with Down syndrome (DS) have a higher prevalence of obesity compared to the general population. Conventionally, this has been attributed to endocrine issues and lack of exercise. However, deficits in neural reward responses and dopaminergic disturbances in DS may be contributing factors. To investigate this, we focused on a mouse model (Ts65Dn) bearing some triplicated genes homologous to trisomy 21. Through detailed meal pattern analysis in male Ts65Dn mice, we observed an increased preference for energy-dense food, pointing towards a potential "hedonic" overeating behavior. Moreover, trisomic mice exhibited higher scores in compulsivity and inflexibility tests when limited access to energy-dense food and quinine hydrochloride adulteration were introduced, compared to euploid controls. Interestingly, when we activated prelimbic-to-nucleus accumbens projections in Ts65Dn male mice using a chemogenetic approach, impulsive and compulsive behaviors significantly decreased, shedding light on a promising intervention avenue. Our findings uncover a novel mechanism behind the vulnerability to overeating and offer potential new pathways for tackling obesity through innovative interventions.
Collapse
Affiliation(s)
- Marta Fructuoso
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, 08003, Barcelona, Spain
| | - Álvaro Fernández-Blanco
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, 08003, Barcelona, Spain
| | - Ana Gallego-Román
- Laboratory of Neuropharmacology-Neurophar, Department of Medicine and Life Sciences, Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Cèsar Sierra
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, 08003, Barcelona, Spain
| | - María Martínez de Lagrán
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, 08003, Barcelona, Spain
| | - Nicola Lorenzon
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, 08003, Barcelona, Spain
| | - Ilario De Toma
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, 08003, Barcelona, Spain
| | - Klaus Langohr
- Human Pharmacology and Clinical Neurosciences Research Group, Neurosciences Research Program, Hospital Del Mar Medical Research Institute (IMIM), 08003, Barcelona, Spain
- Department of Statistics and Operations Research, Universitat Politècnica de Catalunya/ BARCELONATECH, Barcelona, Spain
| | - Elena Martín-García
- Laboratory of Neuropharmacology-Neurophar, Department of Medicine and Life Sciences, Universitat Pompeu Fabra (UPF), Barcelona, Spain
- Human Pharmacology and Clinical Neurosciences Research Group, Neurosciences Research Program, Hospital Del Mar Medical Research Institute (IMIM), 08003, Barcelona, Spain
- Departament de Psicobiologia i Metodologia de Les Ciències de la Salut, Universitat Autònoma de Barcelona (UAB), Cerdanyola del Vallès, Barcelona, Spain
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologique, UMR 8601, CNRS, Université de Paris, 75013, Paris, France
| | - Rafael Maldonado
- Laboratory of Neuropharmacology-Neurophar, Department of Medicine and Life Sciences, Universitat Pompeu Fabra (UPF), Barcelona, Spain
- Human Pharmacology and Clinical Neurosciences Research Group, Neurosciences Research Program, Hospital Del Mar Medical Research Institute (IMIM), 08003, Barcelona, Spain
| | - Julien Dairou
- Departament de Psicobiologia i Metodologia de Les Ciències de la Salut, Universitat Autònoma de Barcelona (UAB), Cerdanyola del Vallès, Barcelona, Spain
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologique, UMR 8601, CNRS, Université de Paris, 75013, Paris, France
| | - Nathalie Janel
- BFA, UMR 8251, CNRS, Université de Paris, 75013, Paris, France
| | - Mara Dierssen
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, 08003, Barcelona, Spain.
- Laboratory of Neuropharmacology-Neurophar, Department of Medicine and Life Sciences, Universitat Pompeu Fabra (UPF), Barcelona, Spain.
- Human Pharmacology and Clinical Neurosciences Research Group, Neurosciences Research Program, Hospital Del Mar Medical Research Institute (IMIM), 08003, Barcelona, Spain.
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain.
| |
Collapse
|
5
|
Guimarães VHD, Lelis DDF, Oliveira LP, Borém LMA, Guimarães FAD, Farias LC, de Paula AMB, Guimarães ALS, Santos SHS. Comparative study of dietary fat: lard and sugar as a better obesity and metabolic syndrome mice model. Arch Physiol Biochem 2023; 129:449-459. [PMID: 33176505 DOI: 10.1080/13813455.2020.1835986] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Diet macronutrient heterogeneity hinders animal studies' data extrapolation from metabolic disorders to human diseases. OBJECTIVE The present study aimed to evaluate different fat-diet compositions' effect on inducing lipid/glucose metabolism alterations in mice. METHODS Swiss male mice were fed for 12 weeks with five different diets: Standard Diet (ST), American Institute of Nutrition 93 for growth (AIN93G) high-butter/high-sugar (HBHS), high-lard/high-sugar (HLHS), and high-oil/high-sugar diet (soybean oil) (HOHS). Several parameters, such as serum biochemistry, histology, and liver mRNA expression, were accessed. RESULTS The main findings revealed that the HLHS diet dramatically altered liver metabolism inducing hepatic steatosis and increased total cholesterol, triglycerides, VLDL, increasing liver CCAAT/enhancer binding protein (CEBP-α), Acetyl-CoA carboxylase (ACC) and Catalase (CAT) mRNA expression. Moreover, the HLHS diet increased glucose intolerance and reduced insulin sensitivity. CONCLUSIONS High-fat/high-sugar diets are efficient to induce obesity and metabolic syndrome-associated alterations, and diets enriched with lard and sugar showed more effective results.
Collapse
Affiliation(s)
- Victor Hugo Dantas Guimarães
- Laboratory of Health Science, Postgraduate Program in Health Science, Universidade Estadual de Montes Claros (Unimontes), Montes Claros, Brasil
| | - Deborah de Farias Lelis
- Laboratory of Health Science, Postgraduate Program in Health Science, Universidade Estadual de Montes Claros (Unimontes), Montes Claros, Brasil
| | - Luis Paulo Oliveira
- Laboratory of Health Science, Postgraduate Program in Health Science, Universidade Estadual de Montes Claros (Unimontes), Montes Claros, Brasil
| | | | - Felipe Alberto Dantas Guimarães
- Laboratory of Health Science, Postgraduate Program in Health Science, Universidade Estadual de Montes Claros (Unimontes), Montes Claros, Brasil
| | - Lucyana Conceição Farias
- Laboratory of Health Science, Postgraduate Program in Health Science, Universidade Estadual de Montes Claros (Unimontes), Montes Claros, Brasil
| | - Alfredo Mauricio Batista de Paula
- Laboratory of Health Science, Postgraduate Program in Health Science, Universidade Estadual de Montes Claros (Unimontes), Montes Claros, Brasil
| | - André Luiz Sena Guimarães
- Laboratory of Health Science, Postgraduate Program in Health Science, Universidade Estadual de Montes Claros (Unimontes), Montes Claros, Brasil
| | - Sérgio Henrique Sousa Santos
- Laboratory of Health Science, Postgraduate Program in Health Science, Universidade Estadual de Montes Claros (Unimontes), Montes Claros, Brasil
- Institute of Agricultural Sciences (ICA), Postgraduate Program in Food and Health, Universidade Federal de Minas Gerais (UFMG), Montes Claros, Brasil
| |
Collapse
|
6
|
Ruiz‐Leyva L, Vázquez‐Ágredos A, Jiménez‐García AM, López‐Guarnido O, Pla A, Pautassi RM, Morón Henche I, Cendán CM. From binge eating to binge drinking: A new and robust paradigm for assessing binge ethanol self-administration in male rats. Addict Biol 2022; 27:e13153. [PMID: 35229947 PMCID: PMC9285499 DOI: 10.1111/adb.13153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 12/08/2021] [Accepted: 01/20/2022] [Indexed: 11/29/2022]
Abstract
Animal models of alcohol (ethanol) self-administration are crucial to dissect the neurobiological mechanisms underlying alcohol dependence, yet only a few of these induce pharmacologically relevant levels of alcohol consumption and rarely the alcohol self-administration co-occurs with other addictive behaviours. The present study aims to validate a novel model of voluntary ethanol consumption in male Wistar rats, in which ethanol access follows a binge eating experience. Over 10 sessions, Wistar rats were exposed to binge or control eating (i.e., the ingestion of 11.66 and 0.97 kcal/3 min, respectively, derived from a highly palatable food), immediately followed by two-bottle choice intake tests (2%, 6%, 10% or 14% w/w ethanol vs. water). Rats exposed to binge eating drank significantly more 6% or 10% (w/w) ethanol than control peers, reaching up to 6.3 gEtOH /kg. Rats stimulated with 2%, 6%, 10% or 14% ethanol after binge eating, but not those given those ethanol concentrations after control eating, exhibited significant within-group increases in ethanol drinking. This ethanol consumption was not altered by quinine adulteration (up to 0.1 g/L), and it was blocked by naltrexone (10 mg/kg), administered immediately before binge eating. Blood ethanol levels significantly correlated with ethanol consumption; and the more ethanol consumed, the greater the distance travelled in an open field test conducted after the two-bottle choice test. Altogether, this self-administration model seems a valid and robust alternative with remarkable potential for research on different stages of the alcohol addiction and, particularly, to assess interactions between alcohol consumption and others addictive-like behaviours.
Collapse
Affiliation(s)
- Leandro Ruiz‐Leyva
- Department of Pharmacology, Institute of Neuroscience, Biomedical Research Center (CIBM) Faculty of Medicine University of Granada Granada Spain
- Department of Psychobiology, Institute of Neuroscience, Biomedical Research Center (CIBM) University of Granada Spain
| | | | - Ana M. Jiménez‐García
- Department of Psychology, Faculty of Life Sciences and Nature University of Nebrija Hoyo de Manzanares Spain
| | - Olga López‐Guarnido
- Department of Legal Medicine and Toxicology, Faculty of Medicine University of Granada Spain
| | - Antonio Pla
- Department of Legal Medicine and Toxicology, Faculty of Medicine University of Granada Spain
- Hospital Universitario Clínico San Cecilio Granada Spain
| | - Ricardo Marcos Pautassi
- Instituto de Investigación Médica M. y M. Ferreyra, INIMEC‐CONICET Universidad Nacional de Córdoba (INIMEC‐CONICET‐UNC) y Facultad de Psicología, UNC Córdoba Argentina
| | - Ignacio Morón Henche
- Department of Psychobiology and Centre of Investigation of Mind, Brain, and Behavior (CIMCYC), Faculty of Psychology University of Granada Granada Spain
| | - Cruz Miguel Cendán
- Department of Pharmacology, Institute of Neuroscience, Biomedical Research Center (CIBM) Faculty of Medicine University of Granada Granada Spain
- Department of Psychobiology, Institute of Neuroscience, Biomedical Research Center (CIBM) University of Granada Spain
| |
Collapse
|
7
|
Laque A, Wagner GE, Matzeu A, De Ness GL, Kerr TM, Carroll AM, de Guglielmo G, Nedelescu H, Buczynski MW, Gregus AM, Jhou TC, Zorrilla EP, Martin-Fardon R, Koya E, Ritter RC, Weiss F, Suto N. Linking drug and food addiction via compulsive appetite. Br J Pharmacol 2022; 179:2589-2609. [PMID: 35023154 PMCID: PMC9081129 DOI: 10.1111/bph.15797] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 10/09/2021] [Accepted: 10/21/2021] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND AND PURPOSE "Food addiction" is the subject of intense public and research interest. However, this nosology based on neurobehavioral similarities among obese individuals and patients with eating disorders and drug addiction remains controversial. We thus sought to determine which aspects of disordered eating are causally linked to preclinical models of drug addiction. We hypothesized that extensive drug histories, known to cause addiction-like brain changes and drug motivation in rats, would also cause addiction-like food motivation. EXPERIMENTAL APPROACH Rats underwent extensive cocaine, alcohol, caffeine or obesogenic diet histories, and were subsequently tested for punishment-resistant food self-administration or "compulsive appetite", as a measure of addiction-like food motivation. KEY RESULTS Extensive cocaine and alcohol (but not caffeine) histories caused compulsive appetite that persisted long after the last drug exposure. Extensive obesogenic diet histories also caused compulsive appetite, although neither cocaine nor alcohol histories caused excess calorie intake and bodyweight during abstinence. Hence, compulsive appetite and obesity appear to be dissociable, with the former sharing common mechanisms with preclinical drug addiction models. CONCLUSION AND IMPLICATIONS Compulsive appetite, as seen in subsets of obese individuals and patients with binge-eating disorder and bulimia nervosa (eating disorders that do not necessarily result in obesity), appears to epitomize "food addiction". Because different drug and obesogenic diet histories caused compulsive appetite, overlapping dysregulations in the reward circuits, which control drug and food motivation independently of energy homeostasis, may offer common therapeutic targets for treating addictive behaviors across drug addiction, eating disorders and obesity.
Collapse
Affiliation(s)
- Amanda Laque
- Department of Neuroscience, The Scripps Research Institute, La Jolla, CA, USA
| | - Grant E Wagner
- Department of Neuroscience, The Scripps Research Institute, La Jolla, CA, USA
| | - Alessandra Matzeu
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - Genna L De Ness
- Department of Neuroscience, The Scripps Research Institute, La Jolla, CA, USA
| | - Tony M Kerr
- Department of Neuroscience, The Scripps Research Institute, La Jolla, CA, USA.,College of Pharmacy, University of Texas Austin, Austin, TX, USA
| | - Ayla M Carroll
- Department of Neuroscience, The Scripps Research Institute, La Jolla, CA, USA
| | - Giordano de Guglielmo
- Department of Neuroscience, The Scripps Research Institute, La Jolla, CA, USA.,Department of Psychiatry, University of California San Diego, San Diego, CA, USA
| | - Hermina Nedelescu
- Department of Neuroscience, The Scripps Research Institute, La Jolla, CA, USA
| | - Matthew W Buczynski
- Department of Neuroscience, The Scripps Research Institute, La Jolla, CA, USA.,School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Ann M Gregus
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Thomas C Jhou
- Department of Neurosciences, Medical University of South Carolina, Charleston, SC, USA
| | - Eric P Zorrilla
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - Remi Martin-Fardon
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - Eisuke Koya
- Sussex Neuroscience, School of Psychology, University of Sussex, Falmer, UK
| | - Robert C Ritter
- Department of Integrative Physiology and Neuroscience, Washington State University, Pullman, WA, USA
| | - Friedbert Weiss
- Department of Neuroscience, The Scripps Research Institute, La Jolla, CA, USA
| | - Nobuyoshi Suto
- Department of Neuroscience, The Scripps Research Institute, La Jolla, CA, USA
| |
Collapse
|
8
|
Binge eating behavior and incentive motivation with a cafeteria diet. Behav Processes 2021; 190:104447. [PMID: 34174369 DOI: 10.1016/j.beproc.2021.104447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 05/21/2021] [Accepted: 06/19/2021] [Indexed: 11/21/2022]
Abstract
Binge-like eating behavior (BLE) has been characterized as an eating disorder in which subjects have an enhanced intake of food, mainly fats. However, intake of fats and carbohydrates may have differential effects on motivation. Previously it was shown that BLE produces an increase in operant responding for vegetable shortening, but others were unable to replicate the finding using sucrose as the reinforcer. Our aim was to determine if BLE behavior induced with a cafeteria-like diet (CaLD) with several options with fat content would produce an increment in performance. Male Wistar rats were trained under an exponential progressive ratio schedule of sucrose reinforcement; thereafter, the limited access model was used to induce BLE using CaLD options. Finally, subjects were tested for increments in break points (BPs) in the progressive ratio schedule. Rats with intermittent access to CaLD options showed a clear BLE with an escalation in their intake; however they showed compensatory decrements of chow intake that rendered a similar body weight gain to a continuous access group. Although we were unable to observe an increase in BPs after BLE we were able to observe a protection against the decrements of BP previously observed with sugar. Different mechanisms for processing high fat and high carbohydrate reinforcers are variables worth exploring to gain a better understanding of BLE behavior in rodent models.
Collapse
|
9
|
Espitia-Bautista E, Escobar C. Addiction-like response in brain and behavior in a rat experimental model of night-eating syndrome. Appetite 2021; 161:105112. [PMID: 33453338 DOI: 10.1016/j.appet.2021.105112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 11/04/2020] [Accepted: 01/07/2021] [Indexed: 11/28/2022]
Abstract
STUDY OBJECTIVES Individuals ailing from night eating syndrome (NES) consume more than 25% of their daily food intake during the normal sleep time, delaying their sleep or waking up in the middle of the night to eat. This study explored two experimental conditions resembling NES in Wistar rats by offering palatable food during the sleep phase, alone or combined with sleep delay. Also we explored their impact on addiction-like changes in the brain and behavior. METHODS Experiment 1 explored the brain response after a first NES-like event; experiment 2 and 3 explored addiction-like behaviors c-Fos and FosB/ΔFosB in corticolimbic regions after 4 weeks exposition to NES-like conditions and after one week of withdrawal, respectively. For all 3 experiments 6 experimental groups were used: 1. Control; 2. Restricted access (1 h) to high-sugar diet (HSD) or to 3. high-fat diet (HFD); 4., Sleep delay for 4 h (SD) (from ZT0-ZT4, rats using slow rotating wheels); 5. SD + HSD; 6. SD + HFD. RESULTS A first event of eating a palatable diet with or without SD was sufficient to stimulate c-Fos and ΔFosB. Along 4 weeks of exposure to the palatable diets rats exhibited escalation and binge eating, which was highest for the HFD. At this stage, SD did not influence behavioral changes nor the neuronal response. After one-week in withdrawal, rats exhibited craving and effort to obtain their palatable diet. The brains of rats previously exposed to sleep delay maintained high levels of FosB/ΔFosB in the accumbens shell and high c-Fos activation in the insular cortex. CONCLUSIONS In our experimental models of NES-like a HFD in the sleep phase and SD are risk factors to develop binge eating and addiction-like behaviors.
Collapse
Affiliation(s)
- Estefania Espitia-Bautista
- Facultad de Medicina, Departamento de Anatomía, Universidad Nacional Autónoma de México, 04510, México City, Mexico
| | - Carolina Escobar
- Facultad de Medicina, Departamento de Anatomía, Universidad Nacional Autónoma de México, 04510, México City, Mexico.
| |
Collapse
|
10
|
Lalanza JF, Snoeren EMS. The cafeteria diet: A standardized protocol and its effects on behavior. Neurosci Biobehav Rev 2020; 122:92-119. [PMID: 33309818 DOI: 10.1016/j.neubiorev.2020.11.003] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 11/03/2020] [Accepted: 11/04/2020] [Indexed: 12/13/2022]
Abstract
Obesity is a major health risk, with junk food consumption playing a central role in weight gain, because of its high palatability and high-energy nutrients. The Cafeteria (CAF) diet model for animal experiments consists of the same tasty but unhealthy food products that people eat (e.g. hot dogs and muffins), and considers variety, novelty and secondary food features, such as smell and texture. This model, therefore, mimics human eating patterns better than other models. In this paper, we systematically review studies that have used a CAF diet in behavioral experiments and propose a standardized CAF diet protocol. The proposed diet is ad libitum and voluntary; combines different textures, nutrients and tastes, including salty and sweet products; and it is rotated and varied. Our summary of the behavioral effects of CAF diet show that it alters meal patterns, reduces the hedonic value of other rewards, and tends to reduce stress and spatial memory. So far, no clear effects of CAF diet were found on locomotor activity, impulsivity, coping and social behavior.
Collapse
Affiliation(s)
- Jaume F Lalanza
- Department of Psychology, UiT The Arctic University of Norway, Tromsø, Norway.
| | - Eelke M S Snoeren
- Department of Psychology, UiT The Arctic University of Norway, Tromsø, Norway; Regional Health Authority of North Norway, Norway.
| |
Collapse
|
11
|
Lamontagne SJ, Wilkin MM, Menard JL, Olmstead MC. Mid-adolescent stress differentially affects binge-like intake of sucrose across estrous cycles in female rats ✰. Physiol Behav 2020; 228:113194. [PMID: 33011230 DOI: 10.1016/j.physbeh.2020.113194] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/14/2020] [Accepted: 09/29/2020] [Indexed: 02/07/2023]
Abstract
Binge eating disorder (BED), characterized by excessive food consumption within a discrete period of time, is the most prevalent of all eating disorders, with higher rates in women than men. Chronic stress, particularly during adolescence, is a significant risk factor for BED in women, but the mechanism underlying this relationship remains elusive. We investigated the phenomenon by testing the impact of mid-adolescent intermittent physical stress (IPS) on binge-like intake of sucrose in adult female rats, assessing how the behavior changed across reproductive cycles. One hundred and nineteen Long-Evans rats were exposed to IPS (n = 59) or no stress (NS; n = 60) for 12 days during mid-adolescence (PD35-46). Binge-like eating was induced in adult animals using an intermittent access protocol: animals were provided with 12 h or 24 h access to sucrose, 12 h access to saccharin, or 12 h access to food over 28 days. After 1- or 28-day abstinence, compulsive responding for sucrose was measured using a conditioned suppression paradigm. Rats given 12 h access to sucrose developed binge-like intake, measured as increased consumption during the first hour; the effect was magnified in IPS animals and most pronounced during proestrous. Solution intake in IPS rats was predicted by open arm entries in the elevated plus maze, suggesting that increased risk-taking behavior is associated with greater binge-like eating. IPS blocked conditioned suppression after 28 days of abstinence, pointing to a role of mid-adolescent stress in compulsivity. Collectively, these findings emphasize the impact of stress on the emergence of binge eating in females and suggest that intervention programs for women with a history of adolescent adversity should be investigated as a means to reduce risk for BED.
Collapse
Affiliation(s)
- Steven J Lamontagne
- Department of Psychology, Queen's University, Kingston, Ontario, Canada, K7L 3N6
| | - Meaghan M Wilkin
- Department of Psychology, Queen's University, Kingston, Ontario, Canada, K7L 3N6
| | - Janet L Menard
- Department of Psychology, Queen's University, Kingston, Ontario, Canada, K7L 3N6; Centre for Neuroscience Studies, Queen's University, Kingston, Ontario, Canada, K7L 3N6
| | - Mary C Olmstead
- Department of Psychology, Queen's University, Kingston, Ontario, Canada, K7L 3N6; Centre for Neuroscience Studies, Queen's University, Kingston, Ontario, Canada, K7L 3N6.
| |
Collapse
|
12
|
Rivera P, Guerra-Cantera S, Vargas A, Díaz F, García-Úbeda R, Tovar R, Ramírez-López MT, Argente J, de Fonseca FR, Suárez J, Chowen JA. Maternal hypercaloric diet affects factors involved in lipid metabolism and the endogenous cannabinoid systems in the hypothalamus of adult offspring: sex-specific response of astrocytes to palmitic acid and anandamide. Nutr Neurosci 2020; 25:931-944. [PMID: 32954972 DOI: 10.1080/1028415x.2020.1821519] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Aim: We aimed to investigate whether maternal malnutrition during gestation/lactation induces long-lasting changes on inflammation, lipid metabolism and endocannabinoid signaling in the adult offspring hypothalamus and the role of hypothalamic astrocytes in these changes.Methods: We analyzed the effects of a free-choice hypercaloric palatable diet (P) during (pre)gestation, lactation and/or post-weaning on inflammation, lipid metabolism and endogenous cannabinoid signaling in the adult offspring hypothalamus. We also evaluated the response of primary hypothalamic astrocytes to palmitic acid and anandamide.Results: Postnatal exposure to a P diet induced factors involved in hypothalamic inflammation (Tnfa and Il6) and gliosis (Gfap, vimentin and Iba1) in adult offspring, being more significant in females. In contrast, maternal P diet reduced factors involved in astrogliosis (vimentin), fatty acid oxidation (Cpt1a) and monounsaturated fatty acid synthesis (Scd1). These changes were accompanied by an increase in the expression of the genes for the cannabinoid receptor (Cnr1) and Nape-pld, an enzyme involved in endocannabinoid synthesis, in females and a decrease in the endocannabinoid degradation enzyme Faah in males. These changes suggest that the maternal P diet results in sex-specific alterations in hypothalamic endocannabinoid signaling and lipid metabolism. This hypothesis was tested in hypothalamic astrocyte cultures, where palmitic acid (PA) and the polyunsaturated fatty acid N-arachidonoylethanolamine (anandamide or AEA) were found to induce similar changes in the endocannabinoid system (ECS) and lipid metabolism.Conclusion: These results stress the importance of both maternal diet and sex in long term metabolic programming and suggest a possible role of hypothalamic astrocytes in this process.
Collapse
Affiliation(s)
- Patricia Rivera
- Hospital Regional Universitario de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Universidad de Málaga, Málaga, Spain
| | - Santiago Guerra-Cantera
- Department of Endocrinology, Fundación Investigación Biomédica del Hospital Infantil Universitario Niño Jesús, Instituto de Investigación Biomédica la Princesa, Madrid, Spain.,CIBEROBN (Centro de Investigación Biomédica en Red sobre Fisiopatología de la Obesidad y Nutrición), Instituto de Salud Carlos III, Madrid, Spain
| | - Antonio Vargas
- Hospital Regional Universitario de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Universidad de Málaga, Málaga, Spain
| | - Francisca Díaz
- Department of Endocrinology, Fundación Investigación Biomédica del Hospital Infantil Universitario Niño Jesús, Instituto de Investigación Biomédica la Princesa, Madrid, Spain.,CIBEROBN (Centro de Investigación Biomédica en Red sobre Fisiopatología de la Obesidad y Nutrición), Instituto de Salud Carlos III, Madrid, Spain
| | - Rocío García-Úbeda
- Department of Endocrinology, Fundación Investigación Biomédica del Hospital Infantil Universitario Niño Jesús, Instituto de Investigación Biomédica la Princesa, Madrid, Spain
| | - Rubén Tovar
- Hospital Regional Universitario de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Universidad de Málaga, Málaga, Spain
| | | | - Jesús Argente
- Department of Endocrinology, Fundación Investigación Biomédica del Hospital Infantil Universitario Niño Jesús, Instituto de Investigación Biomédica la Princesa, Madrid, Spain.,CIBEROBN (Centro de Investigación Biomédica en Red sobre Fisiopatología de la Obesidad y Nutrición), Instituto de Salud Carlos III, Madrid, Spain.,IMDEA Food Institute, CEI UAM + CSIC, Madrid, Spain.,Department of Pediatrics, Universidad Autonóma de Madrid, Madrid, Spain
| | - Fernando Rodríguez de Fonseca
- Hospital Regional Universitario de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Universidad de Málaga, Málaga, Spain
| | - Juan Suárez
- Hospital Regional Universitario de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Universidad de Málaga, Málaga, Spain
| | - Julie A Chowen
- Department of Endocrinology, Fundación Investigación Biomédica del Hospital Infantil Universitario Niño Jesús, Instituto de Investigación Biomédica la Princesa, Madrid, Spain.,CIBEROBN (Centro de Investigación Biomédica en Red sobre Fisiopatología de la Obesidad y Nutrición), Instituto de Salud Carlos III, Madrid, Spain.,IMDEA Food Institute, CEI UAM + CSIC, Madrid, Spain
| |
Collapse
|
13
|
The Intake of a Cafeteria Diet in Nursing Rats Alters the Breast Milk Concentration of Proteins Important for the Development of Offspring. Nutrients 2020; 12:nu12082470. [PMID: 32824434 PMCID: PMC7468864 DOI: 10.3390/nu12082470] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/11/2020] [Accepted: 08/12/2020] [Indexed: 12/14/2022] Open
Abstract
We aimed to analyse the effects of maternal intake of an unbalanced diet during lactation in the composition and the levels of proteins present in milk. Milk samples from control nursing dams (C-dams) or from nursing dams fed a cafeteria diet during lactation (CAF-dams) were obtained. We conducted a proteomic approach to identify significantly altered proteins in breast milk of C- and CAF-dams, and evaluated the levels of leptin, adiponectin and irisin for their implication in energy homeostasis. One-dimensional SDS-polyacrylamide gel electrophoresis (SDS-PAGE), followed by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS), revealed that the bands that presented a lower intensity in CAF-dams than control contain some caseins (α-S1-casein, α-S2-casein like B, and β-casein), α-lactalbumin and haptoglobin. Leptin and adiponectin levels were greater in the breast milk of CAF-dams than in controls, while levels of irisin were lower. In summary, the relative concentration of bioactive peptides was influenced by maternal diet consumption during lactation; these changes at early stages of life could influence the phenotypic traits of the offspring.
Collapse
|
14
|
Rivera P, Tovar R, Ramírez-López MT, Navarro JA, Vargas A, Suárez J, de Fonseca FR. Sex-Specific Anxiety and Prefrontal Cortex Glutamatergic Dysregulation Are Long-Term Consequences of Pre-and Postnatal Exposure to Hypercaloric Diet in a Rat Model. Nutrients 2020; 12:nu12061829. [PMID: 32575416 PMCID: PMC7353464 DOI: 10.3390/nu12061829] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/14/2020] [Accepted: 06/16/2020] [Indexed: 12/16/2022] Open
Abstract
Both maternal and early life malnutrition can cause long-term behavioral changes in the offspring, which depends on the caloric availability and the timing of the exposure. Here we investigated in a rat model whether a high-caloric palatable diet given to the mother and/or to the offspring during the perinatal and/or postnatal period might dysregulate emotional behavior and prefrontal cortex function in the offspring at adult age. To this end, we examined both anxiety responses and the mRNA/protein expression of glutamatergic, GABAergic and endocannabinoid signaling pathways in the prefrontal cortex of adult offspring. Male animals born from mothers fed the palatable diet, and who continued with this diet after weaning, exhibited anxiety associated with an overexpression of the mRNA of Grin1, Gria1 and Grm5 glutamate receptors in the prefrontal cortex. In addition, these animals had a reduced expression of the endocannabinoid system, the main inhibitory retrograde input to glutamate synapses, reflected in a decrease of the Cnr1 receptor and the Nape-pld enzyme. In conclusion, a hypercaloric maternal diet induces sex-dependent anxiety, associated with alterations in both glutamatergic and cannabinoid signaling in the prefrontal cortex, which are accentuated with the continuation of the palatable diet during the life of the offspring.
Collapse
Affiliation(s)
- Patricia Rivera
- Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Universidad de Málaga, 29010 Málaga, Spain; (R.T.); (J.A.N.); (A.V.); (J.S.)
- Correspondence: (P.R.); (F.R.d.F.); Tel.: +34-952-614-012 (P.R. & F.R.d.F.)
| | - Rubén Tovar
- Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Universidad de Málaga, 29010 Málaga, Spain; (R.T.); (J.A.N.); (A.V.); (J.S.)
| | - María Teresa Ramírez-López
- Hospital Universitario de Getafe, Servicio de Ginecología y Obstetricia, 28905 Getafe, Spain;
- Departamento de Enfermería, Facultad de Enfermería, Fisioterapia y Podología, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Juan Antonio Navarro
- Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Universidad de Málaga, 29010 Málaga, Spain; (R.T.); (J.A.N.); (A.V.); (J.S.)
| | - Antonio Vargas
- Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Universidad de Málaga, 29010 Málaga, Spain; (R.T.); (J.A.N.); (A.V.); (J.S.)
| | - Juan Suárez
- Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Universidad de Málaga, 29010 Málaga, Spain; (R.T.); (J.A.N.); (A.V.); (J.S.)
| | - Fernando Rodríguez de Fonseca
- Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Universidad de Málaga, 29010 Málaga, Spain; (R.T.); (J.A.N.); (A.V.); (J.S.)
- Correspondence: (P.R.); (F.R.d.F.); Tel.: +34-952-614-012 (P.R. & F.R.d.F.)
| |
Collapse
|
15
|
Gondré-Lewis MC, Bassey R, Blum K. Pre-clinical models of reward deficiency syndrome: A behavioral octopus. Neurosci Biobehav Rev 2020; 115:164-188. [PMID: 32360413 DOI: 10.1016/j.neubiorev.2020.04.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 04/08/2020] [Accepted: 04/20/2020] [Indexed: 12/15/2022]
Abstract
Individuals with mood disorders or with addiction, impulsivity and some personality disorders can share in common a dysfunction in how the brain perceives reward, where processing of natural endorphins or the response to exogenous dopamine stimulants is impaired. Reward Deficiency Syndrome (RDS) is a polygenic trait with implications that suggest cross-talk between different neurological systems that include the known reward pathway, neuroendocrine systems, and motivational systems. In this review we evaluate well-characterized animal models for their construct validity and as potential models for RDS. Animal models used to study substance use disorder, major depressive disorder (MDD), early life stress, immune dysregulation, attention deficit hyperactivity disorder (ADHD), post traumatic stress disorder (PTSD), compulsive gambling and compulsive eating disorders are discussed. These disorders recruit underlying reward deficiency mechanisms in multiple brain centers. Because of the widespread and remarkable array of associated/overlapping behavioral manifestations with a common root of hypodopaminergia, the basic endophenotype recognized as RDS is indeed likened to a behavioral octopus. We conclude this review with a look ahead on how these models can be used to investigate potential therapeutics that target the underlying common deficiency.
Collapse
Affiliation(s)
- Marjorie C Gondré-Lewis
- Department of Anatomy, Howard University College of Medicine, 520 W Street, NW, Washington D.C., 20059, United States; Developmental Neuropsychopharmacology Laboratory, Howard University College of Medicine, 520 W Street, NW, Washington D.C., 20059, United States.
| | - Rosemary Bassey
- Developmental Neuropsychopharmacology Laboratory, Howard University College of Medicine, 520 W Street, NW, Washington D.C., 20059, United States; Department of Science Education, Donald and Barbara Zucker School of Medicine at Hofstra/ Northwell, 500 Hofstra University, Hempstead, NY 11549, United States
| | - Kenneth Blum
- Western University Health Sciences, Graduate College of Biomedical Sciences, Pomona, California, United States
| |
Collapse
|
16
|
Lisdexamfetamine suppresses instrumental and consummatory behaviors supported by foods with varying degrees of palatability: Exploration of a binge-like eating model. Pharmacol Biochem Behav 2020; 189:172851. [DOI: 10.1016/j.pbb.2020.172851] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 11/26/2019] [Accepted: 01/09/2020] [Indexed: 01/05/2023]
|
17
|
Fructuoso M, Espinosa-Carrasco J, Erb I, Notredame C, Dierssen M. Protocol for Measuring Compulsive-like Feeding Behavior in Mice. Bio Protoc 2019; 9:e3308. [PMID: 33654818 DOI: 10.21769/bioprotoc.3308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 06/19/2019] [Accepted: 06/20/2019] [Indexed: 11/02/2022] Open
Abstract
Obesity is an important health problem with a strong environmental component that is acquiring pandemic proportion. The high availability of caloric dense foods promotes overeating potentially causing obesity. Animal models are key to validate novel therapeutic strategies, but researchers must carefully select the appropriate model to draw the right conclusions. Obesity is defined by an increased body mass index greater than 30 and characterized by an excess of adipose tissue. However, the regulation of food intake involves a close interrelationship between homeostatic and non-homeostatic factors. Studies in animal models have shown that intermittent access to sweetened or calorie-dense foods induces changes in feeding behavior. However, these studies are focused mainly on the final outcome (obesity) rather than on the primary dysfunction underlying the overeating of palatable foods. We describe a protocol to study overeating in mice using diet-induced obesity (DIO). This method can be applied to free choice between palatable food and a standard rodent chow or to forced intake of calorie-dense and/or palatable diets. Exposure to such diets is sufficient to promote changes in meal pattern that we register and analyze during the period of weight gain allowing the longitudinal characterization of feeding behavior in mice. Abnormal eating behaviors such as binge eating or snacking, behavioral alterations commonly observed in obese humans, can be detected using our protocol. In the free-choice procedure, mice develop a preference for the rewarding palatable food showing the reinforcing effect of this diet. Compulsive components of feeding are reflected by maintenance of feeding despite an adverse bitter taste caused by adulteration with quinine and by the negligence of standard chow when access to palatable food is ceased or temporally limited. Our strategy also enables to identify compulsive overeating in mice under a high-caloric regime by using limited food access and finally, we propose complementary behavioral tests to confirm the non-homeostatic food-taking triggered by these foods. Finally, we describe how to computationally explore large longitudinal behavioral datasets.
Collapse
Affiliation(s)
- Marta Fructuoso
- Cellular and Systems Neurobiology, Systems Biology Program, Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology (BIST), Dr. Aiguader 88, Barcelona 08003, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Jose Espinosa-Carrasco
- Universitat Pompeu Fabra (UPF), Barcelona, Spain.,Comparative Bioinformatics, Bioinformatics and Genomics Program, Barcelona Institute of Science and Technology, Centre for Genomic Regulation (CRG), Spain
| | - Ionas Erb
- Universitat Pompeu Fabra (UPF), Barcelona, Spain.,Comparative Bioinformatics, Bioinformatics and Genomics Program, Barcelona Institute of Science and Technology, Centre for Genomic Regulation (CRG), Spain
| | - Cedric Notredame
- Universitat Pompeu Fabra (UPF), Barcelona, Spain.,Comparative Bioinformatics, Bioinformatics and Genomics Program, Barcelona Institute of Science and Technology, Centre for Genomic Regulation (CRG), Spain
| | - Mara Dierssen
- Cellular and Systems Neurobiology, Systems Biology Program, Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology (BIST), Dr. Aiguader 88, Barcelona 08003, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Spain
| |
Collapse
|
18
|
Overweight Mice Show Coordinated Homeostatic and Hedonic Transcriptional Response across Brain. eNeuro 2019; 5:eN-NWR-0287-18. [PMID: 30637329 PMCID: PMC6327943 DOI: 10.1523/eneuro.0287-18.2018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 10/09/2018] [Accepted: 10/15/2018] [Indexed: 12/29/2022] Open
Abstract
Obesogenic diets lead to overeating and obesity by inducing the expression of genes involved in hedonic and homeostatic responses in specific brain regions. However, how the effects on gene expression are coordinated in the brain so far remains largely unknown. In our study, we provided mice with access to energy-dense diet, which induced overeating and overweight, and we explored the transcriptome changes across the main regions involved in feeding and energy balance: hypothalamus, frontal cortex, and striatum. Interestingly, we detected two regulatory processes: a switch-like regulation with differentially expressed (DE) genes changing over 1.5-fold and “fine-tuned” subtler changes of genes whose levels correlated with body weight and behavioral changes. We found that genes in both categories were positioned within specific topologically associated domains (TADs), which were often differently regulated across different brain regions. These TADs were enriched in genes relevant for the physiological and behavioral observed changes. Our results suggest that chromatin structure coordinates diet-dependent transcriptional regulation.
Collapse
|
19
|
Maracle AC, Normandeau CP, Dumont ÉC, Olmstead MC. Dopamine in the oval bed nucleus of the stria terminalis contributes to compulsive responding for sucrose in rats. Neuropsychopharmacology 2019; 44:381-389. [PMID: 30030542 PMCID: PMC6300551 DOI: 10.1038/s41386-018-0149-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 06/06/2018] [Accepted: 07/04/2018] [Indexed: 12/29/2022]
Abstract
Binge eating disorder (BED) is characterized by periods of excessive food intake combined with subjective feelings of loss of control. We examined whether sucrose bingeing itself leads to uncontrolled or compulsive responding and whether this effect is magnified following a period of abstinence. We then assessed dopamine (DA) modulation of inhibitory synaptic transmission in the oval bed nucleus of the stria terminalis (ovBNST) as a neural correlate of compulsive responding and whether this behavioral effect could be disrupted by DA blockade in the ovBNST. Over 28 days, male Long-Evans rats (n = 8-16 per group) had access to 10% sucrose and food (12 or 24 h), 0.1% saccharin and food (12 h), or food alone (12 h). Compulsive responding was assessed following 1 or 28 days of sucrose abstinence using a conditioned suppression paradigm. Only rats given 12 h access to sucrose developed binge-like intake, manifested as copious intake within the first hour; compulsive responding was significantly elevated in this group following 28 days of abstinence. In parallel, the effect of DA on ovBNST inhibitory transmission switched from a reduction to a potentiation; the effect, although observable after 1 day, was more pronounced and sustained following 28 days of abstinence. Intra-ovBNST infusions of a DA D1 receptor antagonist (0.8 µg/µl SCH-23390) reversed the blockade of conditioned suppression, thereby confirming the causal relationship between ovBNST DA modulation of γ-aminobutyric acid transmission and alterations in conditioned suppression following binge-like intake of sucrose.
Collapse
Affiliation(s)
- Amanda C Maracle
- Department of Psychology, Queen's University, Kingston, ON, K7L 3N6, Canada
| | - Catherine P Normandeau
- Center for Neuroscience Studies, Queen's University, Kingston, ON, K7L 3N6, Canada
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON, K7L 3N6, Canada
| | - Éric C Dumont
- Center for Neuroscience Studies, Queen's University, Kingston, ON, K7L 3N6, Canada
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON, K7L 3N6, Canada
| | - Mary C Olmstead
- Department of Psychology, Queen's University, Kingston, ON, K7L 3N6, Canada.
- Center for Neuroscience Studies, Queen's University, Kingston, ON, K7L 3N6, Canada.
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON, K7L 3N6, Canada.
| |
Collapse
|
20
|
|
21
|
Gibert-Ramos A, Crescenti A, Salvadó MJ. Consumption of Cherry out of Season Changes White Adipose Tissue Gene Expression and Morphology to a Phenotype Prone to Fat Accumulation. Nutrients 2018; 10:E1102. [PMID: 30115853 PMCID: PMC6115965 DOI: 10.3390/nu10081102] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 08/09/2018] [Accepted: 08/10/2018] [Indexed: 12/13/2022] Open
Abstract
The aim of this study was to determine whether the consumption of cherry out of its normal harvest photoperiod affects adipose tissue, increasing the risk of obesity. Fischer 344 rats were held over a long day (LD) or a short day (SD), fed a standard diet (STD), and treated with a cherry lyophilizate (CH) or vehicle (VH) (n = 6). Biometric measurements, serum parameters, gene expression in white (RWAT) and brown (BAT) adipose tissues, and RWAT histology were analysed. A second experiment with similar conditions was performed (n = 10) but with a cafeteria diet (CAF). In the STD experiment, Bmal1 and Cry1 were downregulated in the CHSD group compared to the VHSD group. Pparα expression was downregulated while Ucp1 levels were higher in the BAT of the CHSD group compared to the VHSD group. In the CAF-fed rats, glucose and insulin serum levels increased, and the expression levels of lipogenesis and lipolysis genes in RWAT were downregulated, while the adipocyte area increased and the number of adipocytes diminished in the CHSD group compared to the VHSD group. In conclusion, we show that the consumption of cherry out of season influences the metabolism of adipose tissue and promotes fat accumulation when accompanied by an obesogenic diet.
Collapse
Affiliation(s)
- Albert Gibert-Ramos
- Nutrigenomics Research Group, Department of Biochemistry and Biotechnology, Universitat Rovira i Virgili (URV), Tarragona 43007, Spain.
| | - Anna Crescenti
- Eurecat, Centre Tecnològic de Catalunya, Unitat de Nutrició i Salut, Reus 43204, Spain.
| | - M Josepa Salvadó
- Nutrigenomics Research Group, Department of Biochemistry and Biotechnology, Universitat Rovira i Virgili (URV), Tarragona 43007, Spain.
| |
Collapse
|
22
|
Espinosa-Carrasco J, Burokas A, Fructuoso M, Erb I, Martín-García E, Gutiérrez-Martos M, Notredame C, Maldonado R, Dierssen M. Time-course and dynamics of obesity-related behavioral changes induced by energy-dense foods in mice. Addict Biol 2018; 23:531-543. [PMID: 29318700 DOI: 10.1111/adb.12595] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 10/10/2017] [Accepted: 12/04/2017] [Indexed: 02/02/2023]
Abstract
Obesity represents an important risk factor contributing to the global burden of disease. The current obesogenic environment with easy access to calorie-dense foods is fueling this obesity epidemic. However, how these foods contribute to the progression of feeding behavior changes that lead to overeating is not well understood and needs systematic assessment. Using novel automated methods for the high-throughput screening of behavior, we here examine mice meal pattern upon long-term exposure to a free-choice chocolate-mixture diet and a high-fat diet with face validity for a rapid development of obesity induced by unhealthy food regularly consumed in our societies. We identified rapid diet-specific behavioral changes after exposure to those high-caloric diets. Mice fed with high-fat chow, showed long-lasting meal pattern disturbances, which initiate with a stable loss of circadian feeding rhythmicity. Mice receiving a chocolate-mixture showed qualitatively similar changes, though less marked, consisting in a transient disruption of the feeding behavior and the circadian feeding rhytmicity. Strikingly, compulsive-like eating behavior is triggered immediately after exposure to both high-fat food and chocolate-mixture diet, well before any changes in body weight could be observed. We propose these changes as behavioral biomarkers of prodromal states of obesity that could allow early intervention.
Collapse
Affiliation(s)
- Jose Espinosa-Carrasco
- Cellular and Systems Neurobiology, Systems Biology Program; The Barcelona Institute of Science and Technology, Centre for Genomic Regulation (CRG); Spain
- Comparative Bioinformatics, Bioinformatics and Genomics Program; Barcelona Institute of Science and Technology, Centre for Genomic Regulation (CRG); Spain
- Universitat Pompeu Fabra (UPF); Spain
| | - Aurelijus Burokas
- Laboratori de Neurofarmacologia, Departament de Ciencies Experimentals i de la Salut; Universitat Pompeu Fabra, PRBB; Spain
| | - Marta Fructuoso
- Cellular and Systems Neurobiology, Systems Biology Program; The Barcelona Institute of Science and Technology, Centre for Genomic Regulation (CRG); Spain
- Universitat Pompeu Fabra (UPF); Spain
| | - Ionas Erb
- Comparative Bioinformatics, Bioinformatics and Genomics Program; Barcelona Institute of Science and Technology, Centre for Genomic Regulation (CRG); Spain
- Universitat Pompeu Fabra (UPF); Spain
| | - Elena Martín-García
- Laboratori de Neurofarmacologia, Departament de Ciencies Experimentals i de la Salut; Universitat Pompeu Fabra, PRBB; Spain
| | - Miriam Gutiérrez-Martos
- Laboratori de Neurofarmacologia, Departament de Ciencies Experimentals i de la Salut; Universitat Pompeu Fabra, PRBB; Spain
| | - Cedric Notredame
- Comparative Bioinformatics, Bioinformatics and Genomics Program; Barcelona Institute of Science and Technology, Centre for Genomic Regulation (CRG); Spain
- Universitat Pompeu Fabra (UPF); Spain
| | - Rafael Maldonado
- Laboratori de Neurofarmacologia, Departament de Ciencies Experimentals i de la Salut; Universitat Pompeu Fabra, PRBB; Spain
| | - Mara Dierssen
- Cellular and Systems Neurobiology, Systems Biology Program; The Barcelona Institute of Science and Technology, Centre for Genomic Regulation (CRG); Spain
- Universitat Pompeu Fabra (UPF); Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER); Spain
| |
Collapse
|
23
|
Burokas A, Martín-García E, Espinosa-Carrasco J, Erb I, McDonald J, Notredame C, Dierssen M, Maldonado R. Extinction and reinstatement of an operant responding maintained by food in different models of obesity. Addict Biol 2018; 23:544-555. [PMID: 29282813 DOI: 10.1111/adb.12597] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 10/09/2017] [Accepted: 12/04/2017] [Indexed: 02/02/2023]
Abstract
A major problem in treating obesity is the high rate of relapse to abnormal food-taking habits after maintaining an energy balanced diet. Alterations of eating behavior such as compulsive-like behavior and lack of self-control over food intake play a critical role in relapse. In this study, we used an operant paradigm of food-seeking behavior on two different diet-induced obesity models, a free-choice chocolate-mixture diet and a high-fat diet with face validity for a rapid development of obesity or for unhealthy food regularly consumed in our societies. A reduced operant performance and motivation for the hedonic value of palatable chocolate pellets was revealed in both obesity mouse models. However, only mice exposed to high-fat diet showed an increased compulsive-like behavior in the absence of the reinforcer further characterized by impaired operant learning, enhanced impulsivity and intensified inflexibility. We used principal component analysis to globally identify the specific behaviors responsible for the differences among diet groups. Learning impairment and inflexible behaviors contributed to a first principal component, explaining the largest proportion of the variance in the high-fat diet mice phenotype. Reinforcement, impulsion and compulsion were the main contributors to the second principal component explaining the differences in the chocolate-mixture mice behavioral phenotype. These behaviors were not exclusive of chocolate group because some high-fat individuals showed similar values on this component. These data indicate that extended access to hypercaloric diets differentially modifies operant behavior learning, behavioral flexibility, impulsive-like and compulsive-like behavior, and these effects were dependent on the exposure to each specific diet.
Collapse
Affiliation(s)
- Aurelijus Burokas
- Laboratori de Neurofarmacologia. Departament de Ciencies Experimentals i de la Salut; Universitat Pompeu Fabra; Barcelona Spain
| | - Elena Martín-García
- Laboratori de Neurofarmacologia. Departament de Ciencies Experimentals i de la Salut; Universitat Pompeu Fabra; Barcelona Spain
| | - Jose Espinosa-Carrasco
- Cellular & Systems Neurobiology, Systems Biology Program, The Barcelona Institute of Science and Technology; Centre for Genomic Regulation (CRG); Barcelona Spain
- Comparative Bioinformatics, Bioinformatics and Genomics Program, The Barcelona Institute of Science and Technology; Centre for Genomic Regulation (CRG); Barcelona Spain
- Universitat Pompeu Fabra (UPF); Barcelona Spain
| | - Ionas Erb
- Comparative Bioinformatics, Bioinformatics and Genomics Program, The Barcelona Institute of Science and Technology; Centre for Genomic Regulation (CRG); Barcelona Spain
- Universitat Pompeu Fabra (UPF); Barcelona Spain
| | - Jerome McDonald
- Cellular & Systems Neurobiology, Systems Biology Program, The Barcelona Institute of Science and Technology; Centre for Genomic Regulation (CRG); Barcelona Spain
- Universitat Pompeu Fabra (UPF); Barcelona Spain
| | - Cedric Notredame
- Comparative Bioinformatics, Bioinformatics and Genomics Program, The Barcelona Institute of Science and Technology; Centre for Genomic Regulation (CRG); Barcelona Spain
- Universitat Pompeu Fabra (UPF); Barcelona Spain
| | - Mara Dierssen
- Cellular & Systems Neurobiology, Systems Biology Program, The Barcelona Institute of Science and Technology; Centre for Genomic Regulation (CRG); Barcelona Spain
- Universitat Pompeu Fabra (UPF); Barcelona Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER); Valencia Spain
| | - Rafael Maldonado
- Laboratori de Neurofarmacologia. Departament de Ciencies Experimentals i de la Salut; Universitat Pompeu Fabra; Barcelona Spain
| |
Collapse
|
24
|
Processing of visual food cues during bitter taste perception in female patients with binge-eating symptoms: A cross-modal ERP study. Clin Neurophysiol 2017; 128:2184-2190. [PMID: 28950151 DOI: 10.1016/j.clinph.2017.08.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 07/31/2017] [Accepted: 08/12/2017] [Indexed: 12/22/2022]
Abstract
OBJECTIVE In healthy individuals, the perception of an intense bitter taste decreased the reward value of visual food cues, as reflected by the reduction of a specific event-related brain potential (ERP), frontal late positivity. The current cross-modal ERP study investigated responses of female patients with binge-eating symptoms (BES) to this type of visual-gustatory stimulation. METHODS Women with BES (n=36) and female control participants (n=38) viewed food images after they rinsed their mouth with either bitter wormwood tea or water. RESULTS Relative to controls, the patients showed elevated late positivity (LPP: 400-700ms) to the food images in the bitter condition. The LPP source was located in the medial prefrontal cortex. Both groups did not differ in the ratings for the fluids (intensity, bitterness, disgust). CONCLUSIONS This ERP study showed that a bitter taste did not decrease late positivity to visual food cues (reflecting food reward) in women with BES. SIGNIFICANCE The atypical bitter responding might be a biological marker of this condition and possibly contributes to overeating. Future studies should additionally record food intake behavior to further investigate this mechanism.
Collapse
|
25
|
Junk food diet-induced obesity increases D2 receptor autoinhibition in the ventral tegmental area and reduces ethanol drinking. PLoS One 2017; 12:e0183685. [PMID: 28859110 PMCID: PMC5578487 DOI: 10.1371/journal.pone.0183685] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 08/09/2017] [Indexed: 01/11/2023] Open
Abstract
Similar to drugs of abuse, the hedonic value of food is mediated, at least in part, by the mesostriatal dopamine (DA) system. Prolonged intake of either high calorie diets or drugs of abuse both lead to a blunting of the DA system. Most studies have focused on DAergic alterations in the striatum, but little is known about the effects of high calorie diets on ventral tegmental area (VTA) DA neurons. Since high calorie diets produce addictive-like DAergic adaptations, it is possible these diets may increase addiction susceptibility. However, high calorie diets consistently reduce psychostimulant intake and conditioned place preference in rodents. In contrast, high calorie diets can increase or decrease ethanol drinking, but it is not known how a junk food diet (cafeteria diet) affects ethanol drinking. In the current study, we administered a cafeteria diet consisting of bacon, potato chips, cheesecake, cookies, breakfast cereals, marshmallows, and chocolate candies to male Wistar rats for 3–4 weeks, producing an obese phenotype. Prior cafeteria diet feeding reduced homecage ethanol drinking over 2 weeks of testing, and transiently reduced sucrose and chow intake. Importantly, cafeteria diet had no effect on ethanol metabolism rate or blood ethanol concentrations following 2g/kg ethanol administration. In midbrain slices, we showed that cafeteria diet feeding enhances DA D2 receptor (D2R) autoinhibition in VTA DA neurons. These results show that junk food diet-induced obesity reduces ethanol drinking, and suggest that increased D2R autoinhibition in the VTA may contribute to deficits in DAergic signaling and reward hypofunction observed with obesity.
Collapse
|
26
|
Pathological Overeating: Emerging Evidence for a Compulsivity Construct. Neuropsychopharmacology 2017; 42:1375-1389. [PMID: 27922596 PMCID: PMC5436113 DOI: 10.1038/npp.2016.269] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 11/18/2016] [Accepted: 11/22/2016] [Indexed: 12/11/2022]
Abstract
Compulsive eating behavior is a transdiagnostic construct that is characteristic of medical and psychiatric conditions such as forms of obesity and eating disorders. Although feeding research is moving toward a better understanding of the proposed addictive properties of food, the components and the mechanisms contributing to compulsive eating are not yet clearly defined or understood. Current understanding highlights three elements of compulsive behavior as it applies to pathological overeating: (1) habitual overeating; (2) overeating to relieve a negative emotional state; and (3) overeating despite aversive consequences. These elements emerge through mechanisms involving pathological habit formation through an aberrant learning process, the emergence of a negative emotional state, and dysfunctions in behavioral control. Dysfunctions in systems within neurocircuitries that comprise the basal ganglia, the extended amygdala, and the prefrontal cortex result in compulsive eating behaviors. Here, we present evidence to relate compulsive eating behavior and addiction and to characterize their underlying neurobiological mechanisms. A major need to improve understanding of compulsive eating through the integration of complex motivational, emotional, and cognitive constructs is warranted.
Collapse
|
27
|
Ramírez-López MT, Arco R, Decara J, Vázquez M, Rivera P, Blanco RN, Alén F, Gómez de Heras R, Suárez J, Rodríguez de Fonseca F. Long-Term Effects of Prenatal Exposure to Undernutrition on Cannabinoid Receptor-Related Behaviors: Sex and Tissue-Specific Alterations in the mRNA Expression of Cannabinoid Receptors and Lipid Metabolic Regulators. Front Behav Neurosci 2016; 10:241. [PMID: 28082878 PMCID: PMC5187359 DOI: 10.3389/fnbeh.2016.00241] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 12/12/2016] [Indexed: 12/16/2022] Open
Abstract
Maternal malnutrition causes long-lasting alterations in feeding behavior and energy homeostasis in offspring. It is still unknown whether both, the endocannabinoid (eCB) machinery and the lipid metabolism are implicated in long-term adaptive responses to fetal reprogramming caused by maternal undernutrition. We investigated the long-term effects of maternal exposure to a 20% standard diet restriction during preconceptional and gestational periods on the metabolically-relevant tissues hypothalamus, liver, and perirenal fat (PAT) of male and female offspring at adulthood. The adult male offspring from calorie-restricted dams (RC males) exhibited a differential response to the CB1 antagonist AM251 in a chocolate preference test as well as increased body weight, perirenal adiposity, and plasma levels of triglycerides, LDL, VLDL, bilirubin, and leptin. The gene expression of the cannabinoid receptors Cnr1 and Cnr2 was increased in RC male hypothalamus, but a down-expression of most eCBs-metabolizing enzymes (Faah, Daglα, Daglβ, Mgll) and several key regulators of fatty-acid β-oxidation (Cpt1b, Acox1), mitochondrial respiration (Cox4i1), and lipid flux (Pparγ) was found in their PAT. The female offspring from calorie-restricted dams exhibited higher plasma levels of LDL and glucose as well as a reduction in chocolate and caloric intake at post-weaning periods in the feeding tests. Their liver showed a decreased gene expression of Cnr1, Pparα, Pparγ, the eCBs-degrading enzymes Faah and Mgll, the de novo lipogenic enzymes Acaca and Fasn, and the liver-specific cholesterol biosynthesis regulators Insig1 and Hmgcr. Our results suggest that the long-lasting adaptive responses to maternal caloric restriction affected cannabinoid-regulated mechanisms involved in feeding behavior, adipose β-oxidation, and hepatic lipid and cholesterol biosynthesis in a sex-dependent manner.
Collapse
Affiliation(s)
- María T Ramírez-López
- Departamento de Psicobiología, Facultad de Psicología, Universidad Complutense de MadridMadrid, Spain; Hospital Universitario de GetafeMadrid, Spain
| | - Rocío Arco
- Instituto de Investigación Biomédica de Málaga (IBIMA), Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, Universidad de Málaga Málaga, Spain
| | - Juan Decara
- Instituto de Investigación Biomédica de Málaga (IBIMA), Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, Universidad de Málaga Málaga, Spain
| | - Mariam Vázquez
- Departamento de Psicobiología, Facultad de Psicología, Universidad Complutense de MadridMadrid, Spain; Instituto de Investigación Biomédica de Málaga (IBIMA), Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, Universidad de MálagaMálaga, Spain
| | - Patricia Rivera
- Instituto de Investigación Biomédica de Málaga (IBIMA), Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, Universidad de Málaga Málaga, Spain
| | - Rosario Noemi Blanco
- Departamento de Psicobiología, Facultad de Psicología, Universidad Complutense de Madrid Madrid, Spain
| | - Francisco Alén
- Departamento de Psicobiología, Facultad de Psicología, Universidad Complutense de MadridMadrid, Spain; Instituto de Investigación Biomédica de Málaga (IBIMA), Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, Universidad de MálagaMálaga, Spain
| | - Raquel Gómez de Heras
- Departamento de Psicobiología, Facultad de Psicología, Universidad Complutense de Madrid Madrid, Spain
| | - Juan Suárez
- Instituto de Investigación Biomédica de Málaga (IBIMA), Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, Universidad de MálagaMálaga, Spain; Departamento de Biología Celular, Genética y Fisiología, Instituto de Investigación Biomédica de Málaga (IBIMA), Facultad de Ciencias, Universidad de MálagaMálaga, Spain
| | - Fernando Rodríguez de Fonseca
- Departamento de Psicobiología, Facultad de Psicología, Universidad Complutense de MadridMadrid, Spain; Instituto de Investigación Biomédica de Málaga (IBIMA), Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, Universidad de MálagaMálaga, Spain
| |
Collapse
|
28
|
Ramírez-López MT, Arco R, Decara J, Vázquez M, Noemí Blanco R, Alén F, Suárez J, Gómez de Heras R, Rodríguez de Fonseca F. Exposure to a Highly Caloric Palatable Diet during the Perinatal Period Affects the Expression of the Endogenous Cannabinoid System in the Brain, Liver and Adipose Tissue of Adult Rat Offspring. PLoS One 2016; 11:e0165432. [PMID: 27806128 PMCID: PMC5091916 DOI: 10.1371/journal.pone.0165432] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 10/11/2016] [Indexed: 12/27/2022] Open
Abstract
Recent studies have linked gestational exposure to highly caloric diets with a disrupted endogenous cannabinoid system (ECS). In the present study, we have extended these studies by analyzing the impact of the exposure to a palatable diet during gestation and lactation on a) the adult expression of endocannabinoid-related behaviors, b) the metabolic profile of adult offspring and c) the mRNA expression of the signaling machinery of the ECS in the hypothalamus, the liver and the adipose tissue of adult offspring of both sexes. Exposure to a palatable diet resulted in a) sex-dimorphic and perinatal diet specific feeding behaviors, including the differential response to the inhibitory effects of the cannabinoid receptor inverse agonist AM251, b) features of metabolic syndrome including increased adiposity, hyperleptinemia, hypertriglyceridemia and hypercholesterolemia and c) tissue and sex-specific changes in the expression of both CB1 and CB2 receptors and in that of the endocannabinoid-degrading enzymes FAAH and MAGL, being the adipose tissue the most affected organ analyzed. Since the effects were observed in adult animals that were weaned while consuming a normal diet, the present results indicate that the ECS is one of the targets of maternal programming of the offspring energy expenditure. These results clearly indicate that the maternal diet has long-term effects on the development of pups through multiple alterations of signaling homeostatic pathways that include the ECS. The potential relevance of these alterations for the current obesity epidemic is discussed.
Collapse
Affiliation(s)
- María Teresa Ramírez-López
- Departamento de Psicobiología, Facultad de Psicología, Universidad Complutense de Madrid, Campus de Somosaguas s/n, 28223 Pozuelo de Alarcón, Madrid, Spain
| | - Raquel Arco
- Instituto de Investigación Biomédica de Málaga (IBIMA), Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, Universidad de Málaga, 29010, Málaga, Spain
| | - Juan Decara
- Instituto de Investigación Biomédica de Málaga (IBIMA), Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, Universidad de Málaga, 29010, Málaga, Spain
| | - Mariam Vázquez
- Instituto de Investigación Biomédica de Málaga (IBIMA), Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, Universidad de Málaga, 29010, Málaga, Spain
| | - Rosario Noemí Blanco
- Departamento de Psicobiología, Facultad de Psicología, Universidad Complutense de Madrid, Campus de Somosaguas s/n, 28223 Pozuelo de Alarcón, Madrid, Spain
| | - Francisco Alén
- Instituto de Investigación Biomédica de Málaga (IBIMA), Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, Universidad de Málaga, 29010, Málaga, Spain
| | - Juan Suárez
- Instituto de Investigación Biomédica de Málaga (IBIMA), Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, Universidad de Málaga, 29010, Málaga, Spain
| | - Raquel Gómez de Heras
- Departamento de Psicobiología, Facultad de Psicología, Universidad Complutense de Madrid, Campus de Somosaguas s/n, 28223 Pozuelo de Alarcón, Madrid, Spain
| | - Fernando Rodríguez de Fonseca
- Instituto de Investigación Biomédica de Málaga (IBIMA), Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, Universidad de Málaga, 29010, Málaga, Spain
| |
Collapse
|
29
|
Patrono E, Gasbarri A, Tomaz C, Nishijo H. Transitionality in addiction: A "temporal continuum" hypotheses involving the aberrant motivation, the hedonic dysregulation, and the aberrant learning. Med Hypotheses 2016; 93:62-70. [PMID: 27372858 DOI: 10.1016/j.mehy.2016.05.015] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 05/16/2016] [Indexed: 11/24/2022]
Abstract
Addiction is a chronic compulsion and relapsing disorder. It involves several brain areas and circuits, which encode vary functions such as reward, motivation, and memory. Drug addiction is defined as a "pathological pattern of use of a substance", characterized by the loss of control on drug-taking-related behaviors, the pursuance of those behaviors even in the presence of negative consequences, and a strong motivated activity to assume substances. Three different theories guide experimental research on drug addiction. Each of these theories consider singles features, such as an aberrant motivation, a hedonic dysregulation, and an aberrant habit learning as the main actor to explain the entire process of the addictive behaviors. The major goal of this study is to present a new hypotheses of transitionality from a controlled use to abuse of addictive substances trough the overview of the three different theories, considering all the single features of each single theory together on the same "temporal continuum" from use to abuse of addictive substances. Recently, it has been suggested that common neural systems may be activated by natural and pharmacological stimuli, raising the hypotheses that binge-eating disorders could be considered as addictive behaviors. The second goal of this study is to present evidences in order to highlight a possible psycho-bio-physiological superimposition between drug and "food addiction". Finally, interesting questions are brought up starting from last findings about a theoretical/psycho-bio-physiological superimposition between drug and "food addiction" and their possibly same transitionality along the same "temporal continuum" from use to abuse of addictive substances in order to investigate new therapeutic strategies based on new therapeutic strategies based on the individual moments characterizing the transition from the voluntary intake of substances to the maladaptive addictive behavior.
Collapse
Affiliation(s)
- Enrico Patrono
- System Emotional Science, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan.
| | - Antonella Gasbarri
- Department of Applied Clinical Science and Biotechnology, University of L'Aquila, Coppito, Italy
| | - Carlos Tomaz
- Primate Center and Department of Physiological Sciences, Institute of Biology, University of Brasilia, Brasilia, DF, Brazil; Neuroscience Research Group, UNICEUMA, São Luis, MA, Brazil
| | - Hisao Nishijo
- System Emotional Science, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| |
Collapse
|
30
|
Cigarroa I, Lalanza JF, Caimari A, del Bas JM, Capdevila L, Arola L, Escorihuela RM. Treadmill Intervention Attenuates the Cafeteria Diet-Induced Impairment of Stress-Coping Strategies in Young Adult Female Rats. PLoS One 2016; 11:e0153687. [PMID: 27099927 PMCID: PMC4839746 DOI: 10.1371/journal.pone.0153687] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 04/03/2016] [Indexed: 12/12/2022] Open
Abstract
The current prevalence of diet-induced overweight and obesity in adolescents and adults is continuously growing. Although the detrimental biochemical and metabolic consequences of obesity are widely studied, its impact on stress-coping behavior and its interaction with specific exercise doses (in terms of intensity, duration and frequency) need further investigation. To this aim, we fed adolescent rats either an obesogenic diet (cafeteria diet, CAF) or standard chow (ST). Each group was subdivided into four subgroups according to the type of treadmill intervention as follows: a sedentary group receiving no manipulation; a control group exposed to a stationary treadmill; a low-intensity treadmill group trained at 12 m/min; and a higher intensity treadmill group trained at 17 m/min. Both the diet and treadmill interventions started at weaning and lasted for 8 weeks. Subjects were tested for anxiety-like behavior in the open field test and for coping strategies in the two-way active avoidance paradigm at week 7 and were sacrificed at week 8 for biometric and metabolic characterization. CAF feeding increased the weight gain, relative retroperitoneal white adipose tissue (RWAT %), and plasma levels of glucose, insulin, triglycerides and leptin and decreased the insulin sensitivity. Treadmill intervention partially reversed the RWAT% and triglyceride alterations; at higher intensity, it decreased the leptin levels of CAF-fed animals. CAF feeding decreased the motor activity and impaired the performance in a two-way active avoidance assessment. Treadmill intervention reduced defecation in the shuttle box, suggesting diminished anxiety. CAF feeding combined with treadmill training at 17 m/min increased the time spent in the center of the open field and more importantly, partially reversed the two-way active avoidance deficit. In conclusion, this study demonstrates that at doses that decreased anxiety-like behavior, treadmill exercise partially improved the coping strategy in terms of active avoidance behavior in the CAF-fed animals. This effect was not observed at lower doses of treadmill training.
Collapse
Affiliation(s)
- Igor Cigarroa
- Institut de Neurociències, Departament de Psiquiatria i Medicina Legal, Universitat Autònoma de Barcelona, Barcelona, Spain
- Carrera de Kinesiología, Facultad de Salud, Universidad Santo Tomás, Los Ángeles, región del Bio-Bio, Chile
| | - Jaume F. Lalanza
- Institut de Neurociències, Departament de Psiquiatria i Medicina Legal, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Antoni Caimari
- Grup de Recerca en Nutrició i Salut (GRNS). Centre Tecnològic de Nutrició i Salut (CTNS), TECNIO, CEICS, Reus, Spain
| | - Josep M. del Bas
- Grup de Recerca en Nutrició i Salut (GRNS). Centre Tecnològic de Nutrició i Salut (CTNS), TECNIO, CEICS, Reus, Spain
| | - Lluís Capdevila
- Laboratori de Psicologia de l’Esport, Departament de Psicologia Bàsica, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Lluís Arola
- Departament de Bioquímica i Biotecnologia, Nutrigenomics Research Group, Universitat Rovira i Virgili, Tarragona, Spain
- Centre Tecnològic de Nutrició i Salut (CTNS), TECNIO, CEICS, Reus, Spain
| | - Rosa M. Escorihuela
- Institut de Neurociències, Departament de Psiquiatria i Medicina Legal, Universitat Autònoma de Barcelona, Barcelona, Spain
- * E-mail:
| |
Collapse
|
31
|
Mikuska L, Vrabcova M, Tillinger A, Balaz M, Ukropec J, Mravec B. Chronic liquid nutrition intake induces obesity and considerable but reversible metabolic alterations in Wistar rats. J Physiol Biochem 2016; 72:225-43. [DOI: 10.1007/s13105-016-0472-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 02/22/2016] [Indexed: 01/06/2023]
|
32
|
Ramírez-López MT, Vázquez M, Bindila L, Lomazzo E, Hofmann C, Blanco RN, Alén F, Antón M, Decara J, Ouro D, Orio L, Suarez J, Lutz B, Rodríguez de Fonseca F, Gómez de Heras R. Exposure to a Highly Caloric Palatable Diet During Pregestational and Gestational Periods Affects Hypothalamic and Hippocampal Endocannabinoid Levels at Birth and Induces Adiposity and Anxiety-Like Behaviors in Male Rat Offspring. Front Behav Neurosci 2016; 9:339. [PMID: 26778987 PMCID: PMC4701936 DOI: 10.3389/fnbeh.2015.00339] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Accepted: 11/20/2015] [Indexed: 11/24/2022] Open
Abstract
Exposure to unbalanced diets during pre-gestational and gestational periods may result in long-term alterations in metabolism and behavior. The contribution of the endocannabinoid system to these long-term adaptive responses is unknown. In the present study, we investigated the impact of female rat exposure to a hypercaloric-hypoproteic palatable diet during pre-gestational, gestational and lactational periods on the development of male offspring. In addition, the hypothalamic and hippocampal endocannabinoid contents at birth and the behavioral performance in adulthood were investigated. Exposure to a palatable diet resulted in low weight offspring who exhibited low hypothalamic contents of arachidonic acid and the two major endocannabinoids (anandamide and 2-arachidonoylglycerol) at birth. Palmitoylethanolamide, but not oleoylethanolamide, also decreased. Additionally, pups from palatable diet-fed dams displayed lower levels of anandamide and palmitoylethanolamide in the hippocampus. The low-weight male offspring, born from palatable diet exposed mothers, gained less weight during lactation and although they recovered weight during the post-weaning period, they developed abdominal adiposity in adulthood. These animals exhibited anxiety-like behavior in the elevated plus-maze and open field test and a low preference for a chocolate diet in a food preference test, indicating that maternal exposure to a hypercaloric diet induces long-term behavioral alterations in male offspring. These results suggest that maternal diet alterations in the function of the endogenous cannabinoid system can mediate the observed phenotype of the offspring, since both hypothalamic and hippocampal endocannabinoids regulate feeding, metabolic adaptions to caloric diets, learning, memory, and emotions.
Collapse
Affiliation(s)
| | - Mariam Vázquez
- Departamento de Psicobiología, Facultad de Psicología, Universidad Complutense de MadridMadrid, Spain; Unidad de Gestión Clínica de Salud Mental, Instituto IBIMA, Hospital Regional Universitario de Málaga, Universidad de MálagaMálaga, Spain
| | - Laura Bindila
- Institute of Physiological Chemistry, University Medical Center of the Johannes Gutenberg University of Mainz Mainz, Germany
| | - Ermelinda Lomazzo
- Institute of Physiological Chemistry, University Medical Center of the Johannes Gutenberg University of Mainz Mainz, Germany
| | - Clementine Hofmann
- Institute of Physiological Chemistry, University Medical Center of the Johannes Gutenberg University of Mainz Mainz, Germany
| | - Rosario Noemí Blanco
- Departamento de Psicobiología, Facultad de Psicología, Universidad Complutense de Madrid Madrid, Spain
| | - Francisco Alén
- Departamento de Psicobiología, Facultad de Psicología, Universidad Complutense de Madrid Madrid, Spain
| | - María Antón
- Departamento de Psicobiología, Facultad de Psicología, Universidad Complutense de Madrid Madrid, Spain
| | - Juan Decara
- Unidad de Gestión Clínica de Salud Mental, Instituto IBIMA, Hospital Regional Universitario de Málaga, Universidad de Málaga Málaga, Spain
| | - Daniel Ouro
- Departamento de Psicobiología, Facultad de Psicología, Universidad Complutense de Madrid Madrid, Spain
| | - Laura Orio
- Departamento de Psicobiología, Facultad de Psicología, Universidad Complutense de Madrid Madrid, Spain
| | - Juan Suarez
- Unidad de Gestión Clínica de Salud Mental, Instituto IBIMA, Hospital Regional Universitario de Málaga, Universidad de Málaga Málaga, Spain
| | - Beat Lutz
- Institute of Physiological Chemistry, University Medical Center of the Johannes Gutenberg University of Mainz Mainz, Germany
| | - Fernando Rodríguez de Fonseca
- Departamento de Psicobiología, Facultad de Psicología, Universidad Complutense de MadridMadrid, Spain; Unidad de Gestión Clínica de Salud Mental, Instituto IBIMA, Hospital Regional Universitario de Málaga, Universidad de MálagaMálaga, Spain
| | - Raquel Gómez de Heras
- Departamento de Psicobiología, Facultad de Psicología, Universidad Complutense de Madrid Madrid, Spain
| |
Collapse
|
33
|
Maioli TU, Gonçalves JL, Miranda MCG, Martins VD, Horta LS, Moreira TG, Godard ALB, Santiago AF, Faria AMC. High sugar and butter (HSB) diet induces obesity and metabolic syndrome with decrease in regulatory T cells in adipose tissue of mice. Inflamm Res 2015; 65:169-78. [PMID: 26650032 DOI: 10.1007/s00011-015-0902-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 11/09/2015] [Accepted: 11/11/2015] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE The purpose of the study was to develop a novel diet based on standard AIN93G diet that would be able to induce experimental obesity and impair immune regulation with high concentrations of both carbohydrate and lipids. METHODS To compare the effects of this high sugar and butter (HSB) diet with other modified diets, male C57BL/6 mice were fed either mouse chow, or AIN93G diet, or high sugar (HS) diet, or high-fat (HF) diet, or high sugar and butter (HSB) diet for 11 weeks ad libitum. HSB diet induced higher weight gain. Therefore, control AIN93G and HSB groups were chosen for additional analysis. Regulatory T cells were studied by flow cytometry, and cytokine levels were measured by ELISA. RESULTS Although HF and HSB diets were able to induce a higher weight gain compatible with obesity in treated mice, HSB-fed mice presented the higher levels of serum glucose after fasting and the lowest frequency of regulatory T cells in adipose tissue. In addition, mice that were fed HSB diet presented higher levels of cholesterol and triglycerides, hyperleptinemia, increased resistin and leptin levels as well as reduced adiponectin serum levels. Importantly, we found increased frequency of CD4(+)CD44(+) effector T cells, reduction of CD4(+)CD25(+)Foxp3(+) and Th3 regulatory T cells as well as decreased levels of IL-10 and TGF-β in adipose tissue of HSB-fed mice. CONCLUSION Therefore, HSB represents a novel model of obesity-inducing diet that was efficient in triggering alterations compatible with metabolic syndrome as well as impairment in immune regulatory parameters.
Collapse
Affiliation(s)
- Tatiani Uceli Maioli
- Departamento de Nutrição, Escola de Enfermagem, Universidade Federal de Minas Gerais, Av. Alfredo Balena, Belo Horizonte, MG, CEP: 30130-100, Brazil.
| | - Juliana Lauar Gonçalves
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, RJ, Brazil
| | - Mariana Camila Gonçalves Miranda
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Vinícius Dantas Martins
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Laila Sampaio Horta
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Thais Garcias Moreira
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Ana Lucia Brunialti Godard
- Departamento de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Andrezza Fernanda Santiago
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Ana Maria Caetano Faria
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| |
Collapse
|
34
|
Dalbøge LS, Pedersen PJ, Hansen G, Fabricius K, Hansen HB, Jelsing J, Vrang N. A Hamster Model of Diet-Induced Obesity for Preclinical Evaluation of Anti-Obesity, Anti-Diabetic and Lipid Modulating Agents. PLoS One 2015; 10:e0135634. [PMID: 26266945 PMCID: PMC4534139 DOI: 10.1371/journal.pone.0135634] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 07/23/2015] [Indexed: 01/01/2023] Open
Abstract
Aim Unlike rats and mice, hamsters develop hypercholesterolemia, and hypertriglyceridemia when fed a cholesterol-rich diet. Because hyperlipidemia is a hallmark of human obesity, we aimed to develop and characterize a novel diet-induced obesity (DIO) and hypercholesterolemia Golden Syrian hamster model. Methods and Results Hamsters fed a highly palatable fat- and sugar-rich diet (HPFS) for 12 weeks showed significant body weight gain, body fat accumulation and impaired glucose tolerance. Cholesterol supplementation to the diet evoked additional hypercholesterolemia. Chronic treatment with the GLP-1 analogue, liraglutide (0.2 mg/kg, SC, BID, 27 days), normalized body weight and glucose tolerance, and lowered blood lipids in the DIO-hamster. The dipeptidyl peptidase-4 (DPP-4) inhibitor, linagliptin (3.0 mg/kg, PO, QD) also improved glucose tolerance. Treatment with peptide YY3-36 (PYY3-36, 1.0 mg/kg/day) or neuromedin U (NMU, 1.5 mg/kg/day), continuously infused via a subcutaneous osmotic minipump for 14 days, reduced body weight and energy intake and changed food preference from HPFS diet towards chow. Co-treatment with liraglutide and PYY3-36 evoked a pronounced synergistic decrease in body weight and food intake with no lower plateau established. Treatment with the cholesterol uptake inhibitor ezetimibe (10 mg/kg, PO, QD) for 14 days lowered plasma total cholesterol with a more marked reduction of LDL levels, as compared to HDL, indicating additional sensitivity to cholesterol modulating drugs in the hyperlipidemic DIO-hamster. In conclusion, the features of combined obesity, impaired glucose tolerance and hypercholesterolemia in the DIO-hamster make this animal model useful for preclinical evaluation of novel anti-obesity, anti-diabetic and lipid modulating agents.
Collapse
|
35
|
Patrono E, Di Segni M, Patella L, Andolina D, Valzania A, Latagliata EC, Felsani A, Pompili A, Gasbarri A, Puglisi-Allegra S, Ventura R. When chocolate seeking becomes compulsion: gene-environment interplay. PLoS One 2015; 10:e0120191. [PMID: 25781028 PMCID: PMC4363151 DOI: 10.1371/journal.pone.0120191] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 02/04/2015] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Eating disorders appear to be caused by a complex interaction between environmental and genetic factors, and compulsive eating in response to adverse circumstances characterizes many eating disorders. MATERIALS AND METHODS We compared compulsion-like eating in the form of conditioned suppression of palatable food-seeking in adverse situations in stressed C57BL/6J and DBA/2J mice, two well-characterized inbred strains, to determine the influence of gene-environment interplay on this behavioral phenotype. Moreover, we tested the hypothesis that low accumbal D2 receptor (R) availability is a genetic risk factor of food compulsion-like behavior and that environmental conditions that induce compulsive eating alter D2R expression in the striatum. To this end, we measured D1R and D2R expression in the striatum and D1R, D2R and α1R levels in the medial prefrontal cortex, respectively, by western blot. RESULTS Exposure to environmental conditions induces compulsion-like eating behavior, depending on genetic background. This behavioral pattern is linked to decreased availability of accumbal D2R. Moreover, exposure to certain environmental conditions upregulates D2R and downregulates α1R in the striatum and medial prefrontal cortex, respectively, of compulsive animals. These findings confirm the function of gene-environment interplay in the manifestation of compulsive eating and support the hypothesis that low accumbal D2R availability is a "constitutive" genetic risk factor for compulsion-like eating behavior. Finally, D2R upregulation and α1R downregulation in the striatum and medial prefrontal cortex, respectively, are potential neuroadaptive responses that parallel the shift from motivated to compulsive eating.
Collapse
Affiliation(s)
- Enrico Patrono
- Department of Applied Clinical Science and Biotechnology, University of L'Aquila, Coppito, Italy
| | - Matteo Di Segni
- Santa Lucia Foundation, Rome, Italy
- Department of Psychology and Center “Daniel Bovet,” Sapienza University, Rome, Italy
| | - Loris Patella
- Department of Applied Clinical Science and Biotechnology, University of L'Aquila, Coppito, Italy
| | - Diego Andolina
- Santa Lucia Foundation, Rome, Italy
- Department of Applied Clinical Science and Biotechnology, University of L'Aquila, Coppito, Italy
| | - Alessandro Valzania
- Santa Lucia Foundation, Rome, Italy
- Department of Psychology and Center “Daniel Bovet,” Sapienza University, Rome, Italy
| | - Emanuele Claudio Latagliata
- Santa Lucia Foundation, Rome, Italy
- Department of Psychology and Center “Daniel Bovet,” Sapienza University, Rome, Italy
| | - Armando Felsani
- CNR, Institute of Cellular Biology and Neurobiology, Rome, Italy
| | - Assunta Pompili
- Department of Applied Clinical Science and Biotechnology, University of L'Aquila, Coppito, Italy
| | - Antonella Gasbarri
- Department of Applied Clinical Science and Biotechnology, University of L'Aquila, Coppito, Italy
| | - Stefano Puglisi-Allegra
- Santa Lucia Foundation, Rome, Italy
- Department of Psychology and Center “Daniel Bovet,” Sapienza University, Rome, Italy
| | - Rossella Ventura
- Santa Lucia Foundation, Rome, Italy
- Department of Psychology and Center “Daniel Bovet,” Sapienza University, Rome, Italy
- * E-mail:
| |
Collapse
|
36
|
Di Segni M, Patrono E, Patella L, Puglisi-Allegra S, Ventura R. Animal models of compulsive eating behavior. Nutrients 2014; 6:4591-609. [PMID: 25340369 PMCID: PMC4210935 DOI: 10.3390/nu6104591] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 10/07/2014] [Accepted: 10/10/2014] [Indexed: 01/20/2023] Open
Abstract
Eating disorders are multifactorial conditions that can involve a combination of genetic, metabolic, environmental, and behavioral factors. Studies in humans and laboratory animals show that eating can also be regulated by factors unrelated to metabolic control. Several studies suggest a link between stress, access to highly palatable food, and eating disorders. Eating "comfort foods" in response to a negative emotional state, for example, suggests that some individuals overeat to self-medicate. Clinical data suggest that some individuals may develop addiction-like behaviors from consuming palatable foods. Based on this observation, "food addiction" has emerged as an area of intense scientific research. A growing body of evidence suggests that some aspects of food addiction, such as compulsive eating behavior, can be modeled in animals. Moreover, several areas of the brain, including various neurotransmitter systems, are involved in the reinforcement effects of both food and drugs, suggesting that natural and pharmacological stimuli activate similar neural systems. In addition, several recent studies have identified a putative connection between neural circuits activated in the seeking and intake of both palatable food and drugs. The development of well-characterized animal models will increase our understanding of the etiological factors of food addiction and will help identify the neural substrates involved in eating disorders such as compulsive overeating. Such models will facilitate the development and validation of targeted pharmacological therapies.
Collapse
Affiliation(s)
- Matteo Di Segni
- Dipartimento di Psicologia and Centro "Daniel Bovet", Sapienza-Università di Roma, Piazzale Aldo Moro 5, 00181 Roma, Italy.
| | - Enrico Patrono
- Dipartimento di Scienze Cliniche Applicate e Biotecnologiche, University of L'Aquila, via Vetoio (Coppito 2) Coppito, 67010 L'Aquila, Italy.
| | - Loris Patella
- Dipartimento di Scienze Cliniche Applicate e Biotecnologiche, University of L'Aquila, via Vetoio (Coppito 2) Coppito, 67010 L'Aquila, Italy.
| | - Stefano Puglisi-Allegra
- Dipartimento di Psicologia and Centro "Daniel Bovet", Sapienza-Università di Roma, Piazzale Aldo Moro 5, 00181 Roma, Italy.
| | - Rossella Ventura
- Dipartimento di Psicologia and Centro "Daniel Bovet", Sapienza-Università di Roma, Piazzale Aldo Moro 5, 00181 Roma, Italy.
| |
Collapse
|
37
|
Abstract
Food is a potent natural reward and food intake is a complex process. Reward and gratification associated with food consumption leads to dopamine (DA) production, which in turn activates reward and pleasure centers in the brain. An individual will repeatedly eat a particular food to experience this positive feeling of gratification. This type of repetitive behavior of food intake leads to the activation of brain reward pathways that eventually overrides other signals of satiety and hunger. Thus, a gratification habit through a favorable food leads to overeating and morbid obesity. Overeating and obesity stems from many biological factors engaging both central and peripheral systems in a bi-directional manner involving mood and emotions. Emotional eating and altered mood can also lead to altered food choice and intake leading to overeating and obesity. Research findings from human and animal studies support a two-way link between three concepts, mood, food, and obesity. The focus of this article is to provide an overview of complex nature of food intake where various biological factors link mood, food intake, and brain signaling that engages both peripheral and central nervous system signaling pathways in a bi-directional manner in obesity.
Collapse
Affiliation(s)
- Minati Singh
- Department of Pediatrics, University of Iowa Iowa City, IA, USA ; Department of Pediatrics, HHMI, University of Iowa Iowa City, IA, USA
| |
Collapse
|
38
|
Dore R, Valenza M, Wang X, Rice KC, Sabino V, Cottone P. The inverse agonist of CB1 receptor SR141716 blocks compulsive eating of palatable food. Addict Biol 2014; 19:849-61. [PMID: 23587012 DOI: 10.1111/adb.12056] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Dieting and the increased availability of highly palatable food are considered major contributing factors to the large incidence of eating disorders and obesity. This study was aimed at investigating the role of the cannabinoid (CB) system in a novel animal model of compulsive eating, based on a rapid palatable diet cycling protocol. Male Wistar rats were fed either continuously a regular chow diet (Chow/Chow, control group) or intermittently a regular chow diet for 2 days and a palatable, high-sucrose diet for 1 day (Chow/Palatable). Chow/Palatable rats showed spontaneous and progressively increasing hypophagia and body weight loss when fed the regular chow diet, and excessive food intake and body weight gain when fed the palatable diet. Diet-cycled rats dramatically escalated the intake of the palatable diet during the first hour of renewed access (7.5-fold compared to controls), and after withdrawal, they showed compulsive eating and heightened risk-taking behavior. The inverse agonist of the CB1 receptor, SR141716 reduced the excessive intake of palatable food with higher potency and the body weight with greater efficacy in Chow/Palatable rats, compared to controls. Moreover, SR141716 reduced compulsive eating and risk-taking behavior in Chow/Palatable rats. Finally, consistent with the behavioral and pharmacological observations, withdrawal from the palatable diet decreased the gene expression of the enzyme fatty acid amide hydrolase in the ventromedial hypothalamus while increasing that of CB1 receptors in the dorsal striatum in Chow/Palatable rats, compared to controls. These findings will help understand the role of the CB system in compulsive eating.
Collapse
Affiliation(s)
- Riccardo Dore
- Laboratory of Addictive Disorders; Departments of Pharmacology and Psychiatry; Boston University School of Medicine; Boston MA USA
| | - Marta Valenza
- Laboratory of Addictive Disorders; Departments of Pharmacology and Psychiatry; Boston University School of Medicine; Boston MA USA
- Department of Biomedical Sciences and Human Oncology; University of Bari Aldo Moro; Bari Italy
| | - Xiaofan Wang
- Laboratory of Addictive Disorders; Departments of Pharmacology and Psychiatry; Boston University School of Medicine; Boston MA USA
| | - Kenner C. Rice
- Chemical Biology Research Branch; National Institute on Drug Abuse and National Institute on Alcohol and Alcoholism; Rockville MD USA
| | - Valentina Sabino
- Laboratory of Addictive Disorders; Departments of Pharmacology and Psychiatry; Boston University School of Medicine; Boston MA USA
| | - Pietro Cottone
- Laboratory of Addictive Disorders; Departments of Pharmacology and Psychiatry; Boston University School of Medicine; Boston MA USA
| |
Collapse
|
39
|
Hone-Blanchet A, Fecteau S. Overlap of food addiction and substance use disorders definitions: analysis of animal and human studies. Neuropharmacology 2014; 85:81-90. [PMID: 24863044 DOI: 10.1016/j.neuropharm.2014.05.019] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 05/11/2014] [Accepted: 05/13/2014] [Indexed: 01/24/2023]
Abstract
Food has both homeostatic and hedonic components, which makes it a potent natural reward. Food related reward could therefore promote an escalation of intake and trigger symptoms associated to withdrawal, suggesting a behavioral parallel with substance abuse. Animal and human theoretical models of food reward and addiction have emerged, raising further interrogations on the validity of a bond between Substance Use Disorders, as clinically categorized in the DSM 5, and food reward. These models propose that highly palatable food items, rich in sugar and/or fat, are overly stimulating to the brain's reward pathways. Moreover, studies have also investigated the possibility of causal link between food reward and the contemporary obesity epidemic, with obesity being potentiated and maintained due to this overwhelming food reward. Although natural rewards are a hot topic in the definition and categorization of Substance Use Disorders, proofs of concept and definite evidence are still inconclusive. This review focuses on available results from experimental studies in animal and human models exploring the concept of food addiction, in an effort to determine if it depicts a specific phenotype and if there is truly a neurobiological similarity between food addiction and Substance Use Disorders. It describes results from sugar, fat and sweet-fat bingeing in rodent models, and behavioral and neurobiological assessments in different human populations. Although pieces of behavioral and neurobiological evidence supporting a food addiction phenotype in animals and humans are interesting, it seems premature to conclude on its validity.
Collapse
Affiliation(s)
- Antoine Hone-Blanchet
- Laboratory of Canada Research Chair in Cognitive Neuroscience, Centre Interdisciplinaire de Recherche en Réadaptation et Intégration Sociale, Centre de Recherche de l'Institut Universitaire en Santé Mentale de Québec, Medical School, Laval University, Canada
| | - Shirley Fecteau
- Laboratory of Canada Research Chair in Cognitive Neuroscience, Centre Interdisciplinaire de Recherche en Réadaptation et Intégration Sociale, Centre de Recherche de l'Institut Universitaire en Santé Mentale de Québec, Medical School, Laval University, Canada; Berenson-Allen Center for Noninvasive Brain Stimulation, Beth Israel Deaconess Medical Center, Harvard Medical School, USA.
| |
Collapse
|
40
|
Barker JM, Torregrossa MM, Taylor JR. Bidirectional modulation of infralimbic dopamine D1 and D2 receptor activity regulates flexible reward seeking. Front Neurosci 2013; 7:126. [PMID: 23882177 PMCID: PMC3714450 DOI: 10.3389/fnins.2013.00126] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Accepted: 06/28/2013] [Indexed: 01/29/2023] Open
Abstract
The development of addictive behavior is marked by a loss of behavioral flexibility. In part, this is due to an increase in the ability of environmental stimuli to elicit responding and decreased importance of the action-outcome relationship in behavioral control. It has previously been demonstrated that both inactivation of and dopamine (DA) infusions in the infralimbic prefrontal cortex (PFC) can restore behavioral flexibility in paradigms measuring habitual reward seeking. Here, we investigated the mechanism by which cortical DA would act to enable goal-directed actions after the transition to habitual behavior has been established. Further, we extended this work to include a novel mouse model of compulsive-like behavior in which we assessed reward seeking despite the possibility of adverse consequences. Our data show that DA receptor D1 inhibition or D2 activation both promote the expression of a flexible responding after the development of habitual or compulsive-like behavior, and we suggest that the ability of DA infusions in the infralimbic PFC to restore sensitivity to changes in outcome value depends on activation of DA D2 receptors.
Collapse
Affiliation(s)
- Jacqueline M Barker
- Department of Psychiatry, Division of Molecular Psychiatry, Center for Genes and Behavior, Yale University School of Medicine, Abraham Ribicoff Research Facilities, Connecticut Mental Health Center New Haven, CT, USA ; Interdepartmental Neuroscience Program, Yale University New Haven, CT, USA
| | | | | |
Collapse
|
41
|
Davis C. From passive overeating to "food addiction": a spectrum of compulsion and severity. ISRN OBESITY 2013; 2013:435027. [PMID: 24555143 PMCID: PMC3901973 DOI: 10.1155/2013/435027] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Accepted: 04/16/2013] [Indexed: 01/17/2023]
Abstract
A psychobiological dimension of eating behaviour is proposed, which is anchored at the low end by energy intake that is relatively well matched to energy output and is reflected by a stable body mass index (BMI) in the healthy range. Further along the continuum are increasing degrees of overeating (and BMI) characterized by more severe and more compulsive ingestive behaviours. In light of the many similarities between chronic binge eating and drug abuse, several authorities have adopted the perspective that an apparent dependence on highly palatable food-accompanied by emotional and social distress-can be best conceptualized as an addiction disorder. Therefore, this review also considers the overlapping symptoms and characteristics of binge eating disorder (BED) and models of food addiction, both in preclinical animal studies and in human research. It also presents this work in the context of the modern and "toxic" food environment and therein the ubiquitous triggers for over-consumption. We complete the review by providing evidence that what we have come to call "food addiction" may simply be a more acute and pathologically dense form of BED.
Collapse
Affiliation(s)
- Caroline Davis
- Kinesiology & Health Sciences, Faculty of Health, York University, 343 Bethune College, 4700 Keele Street, Toronto, ON, Canada M3J 1P3
| |
Collapse
|
42
|
Lehnen AM, Rodrigues B, Irigoyen MC, De Angelis K, Schaan BD. Cardiovascular changes in animal models of metabolic syndrome. J Diabetes Res 2013; 2013:761314. [PMID: 23691518 PMCID: PMC3647579 DOI: 10.1155/2013/761314] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Revised: 02/06/2013] [Accepted: 02/12/2013] [Indexed: 01/01/2023] Open
Abstract
Metabolic syndrome has been defined as a group of risk factors that directly contribute to the development of cardiovascular disease and/or type 2 diabetes. Insulin resistance seems to have a fundamental role in the genesis of this syndrome. Over the past years to the present day, basic and translational research has used small animal models to explore the pathophysiology of metabolic syndrome and to develop novel therapies that might slow the progression of this prevalent condition. In this paper we discuss the animal models used for the study of metabolic syndrome, with particular focus on cardiovascular changes, since they are the main cause of death associated with the condition in humans.
Collapse
Affiliation(s)
- Alexandre M. Lehnen
- Laboratório de Experimentação Animal e Laboratório de Cardiologia Celular e Molecular, Instituto de Cardiologia do Rio Grande do Sul/Fundação Universitária de Cardiologia do Rio Grande do Sul, Porto Alegre, Brazil
- Divisão de Endocrinologia, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Bruno Rodrigues
- Laboratório do Movimento Humano, Universidade São Judas Tadeu, São Paulo, Brazil
| | - Maria Cláudia Irigoyen
- Unidade de Hipertensão, Instituto do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Kátia De Angelis
- Laboratório de Fisiologia Translacional, Universidade Nove de Julho, São Paulo, Brazil
| | - Beatriz D'Agord Schaan
- Divisão de Endocrinologia, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- *Beatriz D'Agord Schaan:
| |
Collapse
|
43
|
Cottone P, Wang X, Park JW, Valenza M, Blasio A, Kwak J, Iyer MR, Steardo L, Rice KC, Hayashi T, Sabino V. Antagonism of sigma-1 receptors blocks compulsive-like eating. Neuropsychopharmacology 2012; 37:2593-604. [PMID: 22713906 PMCID: PMC3473342 DOI: 10.1038/npp.2012.89] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2011] [Revised: 05/02/2012] [Accepted: 05/07/2012] [Indexed: 11/08/2022]
Abstract
Binge eating disorder is an addiction-like disorder characterized by episodes of rapid and excessive food consumption within discrete periods of time which occur compulsively despite negative consequences. This study was aimed at determining whether antagonism of Sigma-1 receptors (Sig-1Rs) blocked compulsive-like binge eating. We trained male wistar rats to obtain a sugary, highly palatable diet (Palatable group) or a regular chow diet (Chow control group), for 1 h a day under fixed ratio 1 operant conditioning. Following intake stabilization, we evaluated the effects of the selective Sig-1R antagonist BD-1063 on food responding. Using a light/dark conflict test, we also tested whether BD-1063 could block the time spent and the food eaten in an aversive, open compartment, where the palatable diet was offered. Furthermore, we measured Sig-1R mRNA and protein expression in several brain areas of the two groups, 24 h after the last binge session. Palatable rats rapidly developed binge-like eating, escalating the 1 h intake by four times, and doubling the eating rate and the regularity of food responding, compared to Chow rats. BD-1063 dose-dependently reduced binge-like eating and the regularity of food responding, and blocked the increased eating rate in Palatable rats. In the light/dark conflict test, BD-1063 antagonized the increased time spent in the aversive compartment and the increased intake of the palatable diet, without affecting motor activity. Finally, Palatable rats showed reduced Sig-1R mRNA expression in prefrontal and anterior cingulate cortices, and a two-fold increase in Sig-1R protein expression in anterior cingulate cortex compared to control Chow rats. These findings suggest that the Sig-1R system may contribute to the neurobiological adaptations driving compulsive-like eating, opening new avenues of investigation towards pharmacologically treating binge eating disorder.
Collapse
Affiliation(s)
- Pietro Cottone
- Laboratory of Addictive Disorders, Departments of Pharmacology and Psychiatry, Boston University School of Medicine, Boston, MA, USA
| | - Xiaofan Wang
- Laboratory of Addictive Disorders, Departments of Pharmacology and Psychiatry, Boston University School of Medicine, Boston, MA, USA
| | - Jin Won Park
- Laboratory of Addictive Disorders, Departments of Pharmacology and Psychiatry, Boston University School of Medicine, Boston, MA, USA
| | - Marta Valenza
- Laboratory of Addictive Disorders, Departments of Pharmacology and Psychiatry, Boston University School of Medicine, Boston, MA, USA
- Department of Pharmacology and Human Physiology, School of Medicine, University of Bari, Bari, Italy
| | - Angelo Blasio
- Laboratory of Addictive Disorders, Departments of Pharmacology and Psychiatry, Boston University School of Medicine, Boston, MA, USA
- Department of Physiology and Pharmacology, University of Rome La Sapienza, Rome, Italy
| | - Jina Kwak
- Laboratory of Addictive Disorders, Departments of Pharmacology and Psychiatry, Boston University School of Medicine, Boston, MA, USA
| | - Malliga R Iyer
- Chemical Biology Research Branch, National Institute on Drug Abuse and the National Institute on Alcohol Abuse and Alcoholism, Rockville, MD, USA
| | - Luca Steardo
- Department of Physiology and Pharmacology, University of Rome La Sapienza, Rome, Italy
| | - Kenner C Rice
- Chemical Biology Research Branch, National Institute on Drug Abuse and the National Institute on Alcohol Abuse and Alcoholism, Rockville, MD, USA
| | - Teruo Hayashi
- Cellular Stress Signaling Unit, Intramural Research Program, National Institute on Drug Abuse, National Institutes of Health, Baltimore, MD, USA
| | - Valentina Sabino
- Laboratory of Addictive Disorders, Departments of Pharmacology and Psychiatry, Boston University School of Medicine, Boston, MA, USA
| |
Collapse
|
44
|
Nagatomo F, Fujino H, Kondo H, Takeda I, Tsuda K, Ishihara A. High-fat diet-induced reduction of peroxisome proliferator-activated receptor-γ coactivator-1α messenger RNA levels and oxidative capacity in the soleus muscle of rats with metabolic syndrome. Nutr Res 2012; 32:144-51. [PMID: 22348463 DOI: 10.1016/j.nutres.2011.12.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2011] [Revised: 12/24/2011] [Accepted: 12/30/2011] [Indexed: 01/21/2023]
Abstract
Animal models of type 2 diabetes exhibit reduced peroxisome proliferator-activated receptor-γ coactivator-1α (PGC-1α) messenger RNA (mRNA) levels, which are associated with decreased oxidative capacity, in skeletal muscles. In contrast, animal models with metabolic syndrome show normal PGC-1α mRNA levels. We hypothesized that a high-fat diet decreases PGC-1α mRNA levels in skeletal muscles of rats with metabolic syndrome, reducing muscle oxidative capacity and accelerating metabolic syndrome or inducing type 2 diabetes. We examined mRNA levels and fiber profiles in the soleus muscles of rats with metabolic syndrome (SHR/NDmcr-cp [cp/cp]; CP) fed a high-fat diet. Five-week-old CP rats were assigned to a sedentary group (CP-N) that was fed a standard diet (15.1 kJ/g, 23.6% protein, 5.3% fat, and 54.4% carbohydrates) or a sedentary group (CP-H) that was fed a high-fat diet (21.6 kJ/g, 23.6% protein, 34.9% fat, and 25.9% carbohydrates) and were housed for 10 weeks. Body weight, energy intake, and systolic blood pressure were higher in the CP-H group than in the CP-N group. Nonfasting glucose, triglyceride, total cholesterol, and leptin levels were higher in the CP-H group than in the CP-N group. There was no difference in insulin levels between the CP-N and CP-H groups. Muscle PGC-1α mRNA levels and succinate dehydrogenase activity were lower in the CP-H group than in the CP-N group. We concluded that a high-fat diet reduces PGC-1α mRNA levels and oxidative capacity in skeletal muscles and accelerates metabolic syndrome.
Collapse
Affiliation(s)
- Fumiko Nagatomo
- Laboratory of Cell Biology and Life Science, Graduate School of Human and Environmental Studies, Kyoto University, Kyoto 606-8501, Japan
| | | | | | | | | | | |
Collapse
|
45
|
Alsiö J, Olszewski PK, Levine AS, Schiöth HB. Feed-forward mechanisms: addiction-like behavioral and molecular adaptations in overeating. Front Neuroendocrinol 2012; 33:127-39. [PMID: 22305720 DOI: 10.1016/j.yfrne.2012.01.002] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2011] [Revised: 11/24/2011] [Accepted: 01/13/2012] [Indexed: 12/23/2022]
Abstract
Food reward, not hunger, is the main driving force behind eating in the modern obesogenic environment. Palatable foods, generally calorie-dense and rich in sugar/fat, are thus readily overconsumed despite the resulting health consequences. Important advances have been made to explain mechanisms underlying excessive consumption as an immediate response to presentation of rewarding tastants. However, our understanding of long-term neural adaptations to food reward that oftentimes persist during even a prolonged absence of palatable food and contribute to the reinstatement of compulsive overeating of high-fat high-sugar diets, is much more limited. Here we discuss the evidence from animal and human studies for neural and molecular adaptations in both homeostatic and non-homeostatic appetite regulation that may underlie the formation of a "feed-forward" system, sensitive to palatable food and propelling the individual from a basic preference for palatable diets to food craving and compulsive, addiction-like eating behavior.
Collapse
Affiliation(s)
- Johan Alsiö
- Department of Neuroscience, Functional Pharmacology, Uppsala University, Biomedical Center, Box 593, SE-751 24 Uppsala, Sweden.
| | | | | | | |
Collapse
|
46
|
de Jong JW, Vanderschuren LJMJ, Adan RAH. Towards an animal model of food addiction. Obes Facts 2012; 5:180-95. [PMID: 22647301 DOI: 10.1159/000338292] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2011] [Accepted: 11/08/2011] [Indexed: 12/24/2022] Open
Abstract
The dramatically increasing prevalence of obesity, associated with potentially life-threatening health problems, including cardiovascular diseases and type II diabetes, poses an enormous public health problem. It has been proposed that the obesity epidemic can be explained by the concept of 'food addiction'. In this review we focus on possible similarities between binge eating disorder (BED), which is highly prevalent in the obese population, and drug addiction. Indeed, both behavioral and neural similarities between addiction and BED have been demonstrated. Behavioral similarities are reflected in the overlap in DSM-IV criteria for drug addiction with the (suggested) criteria for BED and by food addiction-like behavior in animals after prolonged intermittent access to palatable food. Neural similarities include the overlap in brain regions involved in food and drug craving. Decreased dopamine D2 receptor availability in the striatum has been found in animal models of binge eating, after cocaine self-administration in animals as well as in drug addiction and obesity in humans. To further explore the neurobiological basis of food addiction, it is essential to have an animal model to test the addictive potential of palatable food. A recently developed animal model for drug addiction involves three behavioral characteristics that are based on the DSM-IV criteria: i) extremely high motivation to obtain the drug, ii) difficulty in limiting drug seeking even in periods of explicit non-availability, iii) continuation of drug-seeking despite negative consequences. Indeed, it has been shown that a subgroup of rats, after prolonged cocaine self-administration, scores positive on these three criteria. If food possesses addictive properties, then food-addicted rats should also meet these criteria while searching for and consuming food. In this review we discuss evidence from literature regarding food addiction-like behavior. We also suggest future experiments that could further contribute to our understanding of behavioral and neural commonalities and differences between obesity and drug addiction.
Collapse
Affiliation(s)
- Johannes W de Jong
- Rudolf Magnus Institute of Neuroscience, Department of Neuroscience and Pharmacology, University Medical Center Utrecht, Utrecht, the Netherlands
| | | | | |
Collapse
|
47
|
Pandit R, Mercer JG, Overduin J, la Fleur SE, Adan RAH. Dietary factors affect food reward and motivation to eat. Obes Facts 2012; 5:221-42. [PMID: 22647304 DOI: 10.1159/000338073] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Accepted: 10/25/2011] [Indexed: 01/09/2023] Open
Abstract
The propensity to indulge in unhealthy eating and overconsumption of palatable food is a crucial determinant in the rising prevalence of obesity in today's society. The tendency to consume palatable foods in quantities that exceed energy requirements has been linked to an addiction-like process. Although the existence of 'food addiction' has not been conclusively proven, evidence points to alterations in the brain reward circuitry induced by overconsumption of palatable foods that are similar to those seen in drug addiction. The diet-induced obesity paradigm is a common procedure to replicate features of human obesity in rodents. Here we review data on the effect of various obesogenic diets (high-fat, Ensure™, cafeteria type, sucrose) on the extent of leptin resistance, hypothalamic-neuropeptidergic adaptations and changes in feeding behavior. We also discuss to what extent such diets and properties such as macronutrient composition, physical structure, sensory stimuli, and post-ingestive effects influence the brain-reward pathways. Understanding the interaction between individual components of diets, feeding patterns, and brain reward pathways could facilitate the design of diets that limit overconsumption and prevent weight gain.
Collapse
Affiliation(s)
- Rahul Pandit
- Rudolf Magnus Institute of Neuroscience, Department of Neuroscience and Pharmacology, University Medical Center Utrecht, Utrecht, the Netherlands
| | | | | | | | | |
Collapse
|
48
|
Abstract
As opportunities to use and abuse drugs have tremendously increased during the past 50 years, so has addiction research. Here, we provide a systematic review on publication trends in the addiction research field. We examined publication trends in different subject categories of journals including general and multi-disciplinary science, neuroscience, pharmacology, psychiatry and, as a final and most important category, substance abuse. In this first report, we provide a brief comprehensive overview on what has been published in terms of addiction in the general and multi-disciplinary science category versus Addiction Biology within the past decade. We reviewed the literature within three time windows 1999/2000, 2004/2005 and 2009/2010 and selected the number of publications (1) according to the country/region where the original study was conducted; (2) according to the drug classes; (3) according to animal versus human studies; (4) and in terms of methodological trends such as genetic association studies and neuro-imaging. We found a 350% increase in addiction-related publications in the general and multi-disciplinary science category within the past decade. This increase, however, was mainly due to increased publication output from the United States. Concerning drug classes, alcohol-, nicotine- and psychostimulant-related publications clearly increased between 1999 and 2010, whereas published papers related to opioids decreased over time. There were also strongly increasing trends for genetic and imaging studies in the addiction field over time. These publication trends are also reflected to a certain degree by published studies in Addiction Biology.
Collapse
Affiliation(s)
- Sandra Helinski
- Institute of Psychopharmacology, Central Institute of Mental Health, Germany
| | | |
Collapse
|
49
|
Sampey BP, Vanhoose AM, Winfield HM, Freemerman AJ, Muehlbauer MJ, Fueger PT, Newgard CB, Makowski L. Cafeteria diet is a robust model of human metabolic syndrome with liver and adipose inflammation: comparison to high-fat diet. Obesity (Silver Spring) 2011; 19:1109-17. [PMID: 21331068 PMCID: PMC3130193 DOI: 10.1038/oby.2011.18] [Citation(s) in RCA: 417] [Impact Index Per Article: 32.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2010] [Accepted: 01/09/2011] [Indexed: 12/15/2022]
Abstract
Obesity has reached epidemic proportions worldwide and reports estimate that American children consume up to 25% of calories from snacks. Several animal models of obesity exist, but studies are lacking that compare high-fat diets (HFD) traditionally used in rodent models of diet-induced obesity (DIO) to diets consisting of food regularly consumed by humans, including high-salt, high-fat, low-fiber, energy dense foods such as cookies, chips, and processed meats. To investigate the obesogenic and inflammatory consequences of a cafeteria diet (CAF) compared to a lard-based 45% HFD in rodent models, male Wistar rats were fed HFD, CAF or chow control diets for 15 weeks. Body weight increased dramatically and remained significantly elevated in CAF-fed rats compared to all other diets. Glucose- and insulin-tolerance tests revealed that hyperinsulinemia, hyperglycemia, and glucose intolerance were exaggerated in the CAF-fed rats compared to controls and HFD-fed rats. It is well-established that macrophages infiltrate metabolic tissues at the onset of weight gain and directly contribute to inflammation, insulin resistance, and obesity. Although both high fat diets resulted in increased adiposity and hepatosteatosis, CAF-fed rats displayed remarkable inflammation in white fat, brown fat and liver compared to HFD and controls. In sum, the CAF provided a robust model of human metabolic syndrome compared to traditional lard-based HFD, creating a phenotype of exaggerated obesity with glucose intolerance and inflammation. This model provides a unique platform to study the biochemical, genomic and physiological mechanisms of obesity and obesity-related disease states that are pandemic in western civilization today.
Collapse
Affiliation(s)
- Brante P Sampey
- Department of Nutrition, Gillings School of Global Public Health, School of Medicine; University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | | | | | | | | | | | | | | |
Collapse
|
50
|
Avena NM. The study of food addiction using animal models of binge eating. Appetite 2010; 55:734-7. [PMID: 20849896 DOI: 10.1016/j.appet.2010.09.010] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2010] [Revised: 09/08/2010] [Accepted: 09/08/2010] [Indexed: 01/27/2023]
Abstract
This review summarizes evidence of "food addiction" using animal models of binge eating. In our model of sucrose bingeing, behavioral components of addiction are demonstrated and related to neurochemical changes that also occur with addictive drugs. Evidence supports the hypothesis that rats can become dependent and "addicted" to sucrose. Results obtained when animals binge on other palatable foods, including a fat-rich food, are described and suggest that increased body weight can occur. However, the characterization of an addiction-like behavioral profile in animals with binge access to fat requires further exploration in order to dissociate the effect of increased body weight from the diet or schedule of feeding.
Collapse
Affiliation(s)
- Nicole M Avena
- University of Florida, Department of Psychiatry, Gainesville, 32608, United States.
| |
Collapse
|