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Parlatini V, Bellato A, Murphy D, Cortese S. From neurons to brain networks, pharmacodynamics of stimulant medication for ADHD. Neurosci Biobehav Rev 2024; 164:105841. [PMID: 39098738 DOI: 10.1016/j.neubiorev.2024.105841] [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: 04/17/2024] [Revised: 07/25/2024] [Accepted: 08/01/2024] [Indexed: 08/06/2024]
Abstract
Stimulants represent the first line pharmacological treatment for attention-deficit/hyperactivity disorder (ADHD) and are among the most prescribed psychopharmacological treatments. Their mechanism of action at synaptic level has been extensively studied. However, it is less clear how their mechanism of action determines clinically observed benefits. To help bridge this gap, we provide a comprehensive review of stimulant effects, with an emphasis on nuclear medicine and magnetic resonance imaging (MRI) findings. There is evidence that stimulant-induced modulation of dopamine and norepinephrine neurotransmission optimizes engagement of task-related brain networks, increases perceived saliency, and reduces interference from the default mode network. An acute administration of stimulants may reduce brain alterations observed in untreated individuals in fronto-striato-parieto-cerebellar networks during tasks or at rest. Potential effects of prolonged treatment remain controversial. Overall, neuroimaging has fostered understanding on stimulant mechanism of action. However, studies are often limited by small samples, short or no follow-up, and methodological heterogeneity. Future studies should address age-related and longer-term effects, potential differences among stimulants, and predictors of treatment response.
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Affiliation(s)
- Valeria Parlatini
- School of Psychology, University of Southampton, Southampton, United Kingdom; Centre for Innovation in Mental Health, University of Southampton, Southampton, United Kingdom; Institute for Life Sciences, University of Southampton, Southampton, United Kingdom; Institute of Translational Neurodevelopment, Department of Forensic and Neurodevelopmental Sciences, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE5 8AF, United Kingdom; Department of Forensic and Neurodevelopmental Sciences, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE5 8AF, United Kingdom; Solent NHS Trust, Southampton, United Kingdom.
| | - Alessio Bellato
- School of Psychology, University of Southampton, Southampton, United Kingdom; Centre for Innovation in Mental Health, University of Southampton, Southampton, United Kingdom; Institute for Life Sciences, University of Southampton, Southampton, United Kingdom; Solent NHS Trust, Southampton, United Kingdom; School of Psychology, University of Nottingham, Semenyih, Malaysia
| | - Declan Murphy
- Institute of Translational Neurodevelopment, Department of Forensic and Neurodevelopmental Sciences, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE5 8AF, United Kingdom; Department of Forensic and Neurodevelopmental Sciences, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE5 8AF, United Kingdom
| | - Samuele Cortese
- School of Psychology, University of Southampton, Southampton, United Kingdom; Centre for Innovation in Mental Health, University of Southampton, Southampton, United Kingdom; Institute for Life Sciences, University of Southampton, Southampton, United Kingdom; Solent NHS Trust, Southampton, United Kingdom; Mind and Neurodevelopment (MiND) Research Group, University of Nottingham, Semenyih, Malaysia; Clinical and Experimental Sciences (CNS and Psychiatry), Faculty of Medicine, University of Southampton, Southampton, United Kingdom; Hassenfeld Children's Hospital at NYU Langone, New York University Child Study Center, New York, NY, USA
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Feng X, Ye Z, Xie K, Zhu S, Wu X, Sun Z, Feng X, Mo Y, Liang J, Shu G, Wang S, Zhu C, Jiang Q, Wang L. Effects of heat stress on the feeding preference of yellow-feathered broilers and its possible mechanism. J Therm Biol 2024; 124:103959. [PMID: 39180919 DOI: 10.1016/j.jtherbio.2024.103959] [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: 05/27/2024] [Revised: 08/06/2024] [Accepted: 08/13/2024] [Indexed: 08/27/2024]
Abstract
Heat stress is the most critical factor affecting animal feeding in summer. This experiment was conducted to investigate the effects of heat stress on the feeding preference of yellow-feathered broilers and its possible mechanism. As a result, the preference of yellow-feathered broilers for Tenebrio molitor was significantly decreased, and the fear response and serum corticosterone of broilers were significantly increased when the ambient temperatures are 35 °C (P < 0.05). In the central nervous system, consistent with the change in feeding preference, decreased dopamine in the nucleus accumbens (NAc) and increased mRNA levels of MAO-B in the ventral tegmental area (VTA) and NAc were found in yellow-feathered broilers (P < 0.05). In addition, we found significantly increased mRNA levels of corticotropin-releasing hormone receptor 1, corticotropin-releasing hormone receptor 2 and glucocorticoid receptor in the VTA and NAc of female broilers (P < 0.05). However, no similar change was found in male broilers. On the other hand, the serum levels of insulin and glucagon-like peptide-1 were increased only in male broilers (P < 0.05). Accordingly, the mRNA levels of insulin receptor and glucagon-like peptide-1 receptor in the VTA and the phosphorylation of mTOR and PI3K were increased only in male broilers (P < 0.05). In summary, the preference of yellow-feathered broilers for Tenebrio molitor feed decreased under heat stress conditions, and hedonic feeding behavior was significantly inhibited. However, the mechanism by which heat stress affects hedonic feeding behavior may contain gender differences. The insulin signaling pathway may participate in the regulation of heat stress on the male broiler reward system, while stress hormone-related receptors in the midbrain may play an important role in the effect of heat stress on the reward system of female broilers.
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Affiliation(s)
- Xiajie Feng
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, South China Agricultural University, Guangzhou, Guangdong, 510642, China; National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Ziyuan Ye
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, South China Agricultural University, Guangzhou, Guangdong, 510642, China; National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Kailai Xie
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, South China Agricultural University, Guangzhou, Guangdong, 510642, China; National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Shuqing Zhu
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, South China Agricultural University, Guangzhou, Guangdong, 510642, China; National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Xin Wu
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, South China Agricultural University, Guangzhou, Guangdong, 510642, China; National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Zhonghua Sun
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, South China Agricultural University, Guangzhou, Guangdong, 510642, China; National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Xiaohua Feng
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, South China Agricultural University, Guangzhou, Guangdong, 510642, China; National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Yingfen Mo
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, South China Agricultural University, Guangzhou, Guangdong, 510642, China; National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Jingwen Liang
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, South China Agricultural University, Guangzhou, Guangdong, 510642, China; National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Gang Shu
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, South China Agricultural University, Guangzhou, Guangdong, 510642, China; National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Songbo Wang
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, South China Agricultural University, Guangzhou, Guangdong, 510642, China; National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Canjun Zhu
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, South China Agricultural University, Guangzhou, Guangdong, 510642, China; National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Qingyan Jiang
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, South China Agricultural University, Guangzhou, Guangdong, 510642, China; National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Lina Wang
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, South China Agricultural University, Guangzhou, Guangdong, 510642, China; National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, 510642, China.
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3
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Pietrzak M, Yngve A, Hamilton JP, Asratian A, Gauffin E, Löfberg A, Gustavson S, Persson E, Capusan AJ, Leggio L, Perini I, Tinghög G, Heilig M, Boehme R. Ghrelin decreases sensitivity to negative feedback and increases prediction-error related caudate activity in humans, a randomized controlled trial. Neuropsychopharmacology 2024; 49:1042-1049. [PMID: 38409282 PMCID: PMC11039644 DOI: 10.1038/s41386-024-01821-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 02/01/2024] [Accepted: 02/04/2024] [Indexed: 02/28/2024]
Abstract
The stomach-derived hormone ghrelin plays not only a role in feeding, starvation, and survival, but it has been suggested to also be involved in the stress response, in neuropsychiatric conditions, and in alcohol and drug use disorders. Mechanisms related to reward processing might mediate ghrelin's broader effects on complex behaviors, as indicated by animal studies and mostly correlative human studies. Here, using a within-subject double-blind placebo-controlled design with intravenous ghrelin infusion in healthy volunteers (n = 30), we tested whether ghrelin alters sensitivity to reward and punishment in a reward learning task. Parameters were derived from a computational model of participants' task behavior. The reversal learning task with monetary rewards was performed during functional brain imaging to investigate ghrelin effects on brain signals related to reward prediction errors. Compared to placebo, ghrelin decreased punishment sensitivity (t = -2.448, p = 0.021), while reward sensitivity was unaltered (t = 0.8, p = 0.43). We furthermore found increased prediction-error related activity in the dorsal striatum during ghrelin administration (region of interest analysis: t-values ≥ 4.21, p-values ≤ 0.044). Our results support a role for ghrelin in reward processing that extends beyond food-related rewards. Reduced sensitivity to negative outcomes and increased processing of prediction errors may be beneficial for food foraging when hungry but could also relate to increased risk taking and impulsivity in the broader context of addictive behaviors.
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Affiliation(s)
- Michal Pietrzak
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, 58183, Sweden
- Department of Psychiatry, Linköping University Hospital, Linköping, 58183, Sweden
- Center for Medical Imaging and Visualization, Linköping University, Linköping, 58183, Sweden
| | - Adam Yngve
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, 58183, Sweden
- Center for Medical Imaging and Visualization, Linköping University, Linköping, 58183, Sweden
| | - J Paul Hamilton
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, 58183, Sweden
- Center for Medical Imaging and Visualization, Linköping University, Linköping, 58183, Sweden
- Department of Medical and Biological Psychology, University of Bergen, Bergen, 5007, Norway
| | - Anna Asratian
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, 58183, Sweden
- Center for Medical Imaging and Visualization, Linköping University, Linköping, 58183, Sweden
| | - Emelie Gauffin
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, 58183, Sweden
- Department of Psychiatry, Linköping University Hospital, Linköping, 58183, Sweden
- Center for Medical Imaging and Visualization, Linköping University, Linköping, 58183, Sweden
| | - Andreas Löfberg
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, 58183, Sweden
- Department of Psychiatry, Linköping University Hospital, Linköping, 58183, Sweden
- Center for Medical Imaging and Visualization, Linköping University, Linköping, 58183, Sweden
| | - Sarah Gustavson
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, 58183, Sweden
- Department of Psychiatry, Linköping University Hospital, Linköping, 58183, Sweden
- Center for Medical Imaging and Visualization, Linköping University, Linköping, 58183, Sweden
| | - Emil Persson
- Division of Economics, Department of Management and Engineering, Linköping University, Linköping, 58183, Sweden
| | - Andrea J Capusan
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, 58183, Sweden
- Department of Psychiatry, Linköping University Hospital, Linköping, 58183, Sweden
| | - Lorenzo Leggio
- Section on Clinical Psychoneuroendocrinology and Neuropsychopharmacology, Translational Addiction Medicine Branch, National Institute on Drug Abuse Intramural Research Program and National Institute on Alcohol Abuse and Alcoholism, Division of Intramural Clinical and Biological Research, National Institutes of Health, Baltimore, MD, 21224, USA
| | - Irene Perini
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, 58183, Sweden
- Center for Medical Imaging and Visualization, Linköping University, Linköping, 58183, Sweden
| | - Gustav Tinghög
- Division of Economics, Department of Management and Engineering, Linköping University, Linköping, 58183, Sweden
- National Center for Health Care Priority Setting, Department of Health Medicine and Caring Sciences, Linköping University, 58183, Linköping, Sweden
| | - Markus Heilig
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, 58183, Sweden
- Department of Psychiatry, Linköping University Hospital, Linköping, 58183, Sweden
- Center for Medical Imaging and Visualization, Linköping University, Linköping, 58183, Sweden
| | - Rebecca Boehme
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, 58183, Sweden.
- Center for Medical Imaging and Visualization, Linköping University, Linköping, 58183, Sweden.
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Moran KM, Delville Y. A hamster model for stress-induced weight gain. Horm Behav 2024; 160:105488. [PMID: 38306877 DOI: 10.1016/j.yhbeh.2024.105488] [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: 09/05/2023] [Revised: 12/18/2023] [Accepted: 01/18/2024] [Indexed: 02/04/2024]
Abstract
This review addresses the translational relevance of animal models of stress and their effects on body weight. In humans, stress, whether chronic or acute, has often been associated with increased food intake and weight gain. In view of the current obesity epidemic, this phenomenon is especially relevant. Such observations contrast with reports with commonly used laboratory animals, especially rats and mice. In these species, it is common to find individuals gaining less weight under stress, even with potent social stressors. However, there are laboratory species that present increased appetite and weight gain under stress, such as golden hamsters. Furthermore, these animals also include metabolic and behavioral similarities with humans, including hoarding behavior which is also enhanced under stress. Consequently, we propose that our comparative perspective provides useful insights for future research on the development of obesity in humans as a consequence of chronic stress exposure.
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Affiliation(s)
- Kevin M Moran
- Psychology Department, The University of Texas at Austin, USA.
| | - Yvon Delville
- Psychology Department, The University of Texas at Austin, USA
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5
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Dera AM, Shen T, Thackray AE, Hinton EC, King JA, James L, Morgan PS, Rush N, Miyashita M, Batterham RL, Stensel DJ. The influence of physical activity on neural responses to visual food cues in humans: A systematic review of functional magnetic resonance imaging studies. Neurosci Biobehav Rev 2023; 152:105247. [PMID: 37236384 DOI: 10.1016/j.neubiorev.2023.105247] [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: 02/21/2023] [Revised: 05/16/2023] [Accepted: 05/22/2023] [Indexed: 05/28/2023]
Abstract
This systematic review examined whether neural responses to visual food-cues measured by functional magnetic resonance imaging (fMRI) are influenced by physical activity. Seven databases were searched up to February 2023 for human studies evaluating visual food-cue reactivity using fMRI alongside an assessment of habitual physical activity or structured exercise exposure. Eight studies (1 exercise training, 4 acute crossover, 3 cross-sectional) were included in a qualitative synthesis. Structured acute and chronic exercise appear to lower food-cue reactivity in several brain regions, including the insula, hippocampus, orbitofrontal cortex (OFC), postcentral gyrus and putamen, particularly when viewing high-energy-density food cues. Exercise, at least acutely, may enhance appeal of low-energy-density food-cues. Cross-sectional studies show higher self-reported physical activity is associated with lower reactivity to food-cues particularly of high-energy-density in the insula, OFC, postcentral gyrus and precuneus. This review shows that physical activity may influence brain food-cue reactivity in motivational, emotional, and reward-related processing regions, possibly indicative of a hedonic appetite-suppressing effect. Conclusions should be drawn cautiously given considerable methodological variability exists across limited evidence.
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Affiliation(s)
- Abdulrahman M Dera
- National Centre for Sport and Exercise Medicine, School of Sport, Exercise and Health Sciences, Loughborough University, UK; College of Sport Sciences, Jeddah University, Saudi Arabia; National Institute for Health and Care Research (NIHR) Leicester Biomedical Research Centre, University Hospitals of Leicester NHS Trust and University of Leicester, UK
| | - Tonghui Shen
- National Centre for Sport and Exercise Medicine, School of Sport, Exercise and Health Sciences, Loughborough University, UK; National Institute for Health and Care Research (NIHR) Leicester Biomedical Research Centre, University Hospitals of Leicester NHS Trust and University of Leicester, UK
| | - Alice E Thackray
- National Centre for Sport and Exercise Medicine, School of Sport, Exercise and Health Sciences, Loughborough University, UK; National Institute for Health and Care Research (NIHR) Leicester Biomedical Research Centre, University Hospitals of Leicester NHS Trust and University of Leicester, UK
| | - Elanor C Hinton
- National Institute for Health and Care Research (NIHR) Bristol Biomedical Centre Diet and Physical Activity Theme, University of Bristol, UK; Oxford Medical Products Limited, Witney Business and Innovation Centre, Witney, UK
| | - James A King
- National Centre for Sport and Exercise Medicine, School of Sport, Exercise and Health Sciences, Loughborough University, UK; National Institute for Health and Care Research (NIHR) Leicester Biomedical Research Centre, University Hospitals of Leicester NHS Trust and University of Leicester, UK
| | - Lewis James
- National Centre for Sport and Exercise Medicine, School of Sport, Exercise and Health Sciences, Loughborough University, UK; National Institute for Health and Care Research (NIHR) Leicester Biomedical Research Centre, University Hospitals of Leicester NHS Trust and University of Leicester, UK
| | - Paul S Morgan
- Radiological Sciences, School of Medicine, University of Nottingham, UK; National Institute for Health and Care Research (NIHR) Nottingham Biomedical Research Centre, Nottingham, UK
| | - Nathan Rush
- National Centre for Sport and Exercise Medicine, School of Sport, Exercise and Health Sciences, Loughborough University, UK
| | - Masashi Miyashita
- National Centre for Sport and Exercise Medicine, School of Sport, Exercise and Health Sciences, Loughborough University, UK; Faculty of Sport Sciences, Waseda University, Tokorozawa, Japan; Department of Sports Science and Physical Education, The Chinese University of Hong Kong, Hong Kong
| | - Rachel L Batterham
- Department of Medicine, Centre for Obesity Research, University College London, UK; National Institute for Health and Care Research, University College London Hospitals Biomedical Research Centre, London, UK
| | - David J Stensel
- National Centre for Sport and Exercise Medicine, School of Sport, Exercise and Health Sciences, Loughborough University, UK; National Institute for Health and Care Research (NIHR) Leicester Biomedical Research Centre, University Hospitals of Leicester NHS Trust and University of Leicester, UK; Faculty of Sport Sciences, Waseda University, Tokorozawa, Japan; Department of Sports Science and Physical Education, The Chinese University of Hong Kong, Hong Kong.
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6
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Darcey VL, Guo J, Courville AB, Gallagher I, Avery JA, Simmons WK, Ingeholm JE, Herscovitch P, Martin A, Hall KD. Dietary fat restriction affects brain reward regions in a randomized crossover trial. JCI Insight 2023; 8:e169759. [PMID: 37345661 PMCID: PMC10371234 DOI: 10.1172/jci.insight.169759] [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: 02/14/2023] [Accepted: 05/10/2023] [Indexed: 06/23/2023] Open
Abstract
BACKGROUNDWeight-loss diets often target dietary fat or carbohydrates, macronutrients that are sensed via distinct gut-brain pathways and differentially affect peripheral hormones and metabolism. However, the effects of such diet changes on the human brain are unclear. METHODSWe investigated whether selective isocaloric reductions in dietary fat or carbohydrates altered dopamine D2/3 receptor binding potential (D2BP) and neural activity in brain-reward regions in response to visual food cues in 17 inpatient adults with obesity as compared with a eucaloric baseline diet using a randomized crossover design. RESULTSOn the fifth day of dietary fat restriction, but not carbohydrate restriction, both D2BP and neural activity to food cues were decreased in brain-reward regions. After the reduced-fat diet, ad libitum intake shifted toward foods high in both fat and carbohydrates. CONCLUSIONThese results suggest that dietary fat restriction increases tonic dopamine in brain-reward regions and affects food choice in ways that may hamper diet adherence. TRIAL REGISTRATIONClinicalTrials.gov NCT00846040 FUNDING. NIDDK 1ZIADK013037.
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Affiliation(s)
- Valerie L Darcey
- Integrative Physiology Section, National Institute of Diabetes & Digestive & Kidney Diseases, Bethesda, Maryland, USA
| | - Juen Guo
- Integrative Physiology Section, National Institute of Diabetes & Digestive & Kidney Diseases, Bethesda, Maryland, USA
| | - Amber B Courville
- Human Energy and Body Weight Regulation Core, National Institute of Diabetes & Digestive & Kidney Diseases, Bethesda, Maryland, USA
| | - Isabelle Gallagher
- Integrative Physiology Section, National Institute of Diabetes & Digestive & Kidney Diseases, Bethesda, Maryland, USA
| | - Jason A Avery
- Laboratory of Brain and Cognition, National Institute of Mental Health, Rockland, Maryland, USA
| | - W Kyle Simmons
- Biomedical Imaging Center, Oklahoma State University, Stillwater, Oklahoma, USA
| | - John E Ingeholm
- Laboratory of Brain and Cognition, National Institute of Mental Health, Rockland, Maryland, USA
| | - Peter Herscovitch
- Clinical Center Positron Emission Tomography Department, NIH, Bethesda, Maryland, USA
| | - Alex Martin
- Laboratory of Brain and Cognition, National Institute of Mental Health, Rockland, Maryland, USA
| | - Kevin D Hall
- Integrative Physiology Section, National Institute of Diabetes & Digestive & Kidney Diseases, Bethesda, Maryland, USA
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Fico BG, Maharaj A, Pena GS, Huang CJ. The Effects of Obesity on the Inflammatory, Cardiovascular, and Neurobiological Responses to Exercise in Older Adults. BIOLOGY 2023; 12:865. [PMID: 37372149 DOI: 10.3390/biology12060865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 05/30/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023]
Abstract
Obesity with advancing age leads to increased health complications that are involved in various complex physiological processes. For example, inflammation is a critical cardiovascular disease risk factor that plays a role in the stages of atherosclerosis in both aging and obesity. Obesity can also induce profound changes to the neural circuitry that regulates food intake and energy homeostasis with advancing age. Here we discuss how obesity in older adults impacts inflammatory, cardiovascular, and neurobiological functions with an emphasis on how exercise mediates each topic. Although obesity is a reversible disorder through lifestyle changes, it is important to note that early interventions are crucial to prevent pathological changes seen in the aging obese population. Lifestyle modifications such as physical activity (including aerobic and resistance training) should be considered as a main intervention to minimize the synergistic effect of obesity on age-related conditions, such as cerebrovascular disease.
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Affiliation(s)
- Brandon G Fico
- Department of Kinesiology, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Arun Maharaj
- Department of Epidemiology and Cancer Control, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Gabriel S Pena
- Department of Kinesiology, University of Maryland, College Park, MD 20742, USA
| | - Chun-Jung Huang
- Exercise Biochemistry Laboratory, Department of Exercise Science and Health Promotion, Florida Atlantic University, Boca Raton, FL 33431, USA
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8
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Kato A, Shimomura K, Ognibene D, Parvaz MA, Berner LA, Morita K, Fiore VG. Computational models of behavioral addictions: State of the art and future directions. Addict Behav 2023; 140:107595. [PMID: 36621045 DOI: 10.1016/j.addbeh.2022.107595] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 11/23/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
Non-pharmacological behavioral addictions, such as pathological gambling, videogaming, social networking, or internet use, are becoming major public health concerns. It is not yet clear how behavioral addictions could share many major neurobiological and behavioral characteristics with substance use disorders, despite the absence of direct pharmacological influences. A deeper understanding of the neurocognitive mechanisms of addictive behavior is needed, and computational modeling could be one promising approach to explain intricately entwined cognitive and neural dynamics. This review describes computational models of addiction based on reinforcement learning algorithms, Bayesian inference, and biophysical neural simulations. We discuss whether computational frameworks originally conceived to explain maladaptive behavior in substance use disorders can be effectively extended to non-substance-related behavioral addictions. Moreover, we introduce recent studies on behavioral addictions that exemplify the possibility of such extension and propose future directions.
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Affiliation(s)
- Ayaka Kato
- RIKEN Center for Brain Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan
| | - Kanji Shimomura
- Physical and Health Education, Graduate School of Education, The University of Tokyo, Tokyo 113-0033, Japan
| | - Dimitri Ognibene
- Department of Psychology, Università degli Studi Milano-Bicocca, Milan, Italy; School of Computer Science and Electronic Engineering, University of Essex, Colchester, UK
| | - Muhammad A Parvaz
- Departments of Psychiatry and Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Laura A Berner
- Center of Excellence in Eating and Weight Disorders, Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Center for Computational Psychiatry, Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Kenji Morita
- Physical and Health Education, Graduate School of Education, The University of Tokyo, Tokyo 113-0033, Japan; International Research Center for Neurointelligence (WPI-IRCN), The University of Tokyo, Tokyo 113-0033, Japan
| | - Vincenzo G Fiore
- Center for Computational Psychiatry, Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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Ciobanu MM, Manoliu DR, Ciobotaru MC, Anchidin BG, Matei M, Munteanu M, Frunză G, Murariu OC, Flocea EI, Boișteanu PC. The Influence of Sensory Characteristics of Game Meat on Consumer Neuroperception: A Narrative Review. Foods 2023; 12:foods12061341. [PMID: 36981266 PMCID: PMC10048761 DOI: 10.3390/foods12061341] [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: 02/20/2023] [Revised: 03/11/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
Game meat contains bioactive compounds that directly influence the formation of a rich reservoir of flavor precursors that produce specific sensory properties. Quality is considered one of the most influential determinants of consumer behavior, but the interpretation of this concept differs between consumers. Although recognized for its quality, its unique sensory characteristics (smell, taste, aroma) may have a major impact on consumer perception. The aim of this review is to describe the consumer behavior regarding game meat through elements of neuroperception, using methods of analysis, observation, and interpretation of scientific information from the literature. Following the analysis of published papers on this topic, it was shown that external factors influencing the biological basis of behavior could provide explanations for the acceptance or rejection of this type of meat and solutions. Neuroperception can explain the mechanism behind consumer decision-making. The influence of extrinsic factors (environment, mood, emotions, stress) shapes the perception of the quality attributes of game meat, the unique sensory characteristics of game meat passing through a primary filter of sensory receptors (eyes, nose, tongue, etc). Game meat is darker and tougher (compared to meat from domestic animals), and the taste and smell have the power to trigger memories and change the mood, influencing consumer behavior. Understanding consumer attitudes towards game meat in relation to quality attributes and the physiology of sensory perception can provide important insights for food industry professionals, processors, sensory evaluators, and researchers.
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Affiliation(s)
- Marius-Mihai Ciobanu
- Faculty of Agriculture, "Ion Ionescu de la Brad" University of Life Sciences, M. Sadoveanu Alley, No. 3, 700490 Iasi, Romania
| | - Diana-Remina Manoliu
- Faculty of Animal and Food Resources Engineering, "Ion Ionescu de la Brad" University of Life Sciences, M. Sadoveanu Alley, No. 8, 700490 Iasi, Romania
| | - Mihai-Cătălin Ciobotaru
- Faculty of Agriculture, "Ion Ionescu de la Brad" University of Life Sciences, M. Sadoveanu Alley, No. 3, 700490 Iasi, Romania
| | - Bianca-Georgiana Anchidin
- Faculty of Animal and Food Resources Engineering, "Ion Ionescu de la Brad" University of Life Sciences, M. Sadoveanu Alley, No. 8, 700490 Iasi, Romania
| | - Mădălina Matei
- Faculty of Animal and Food Resources Engineering, "Ion Ionescu de la Brad" University of Life Sciences, M. Sadoveanu Alley, No. 8, 700490 Iasi, Romania
| | - Mugurel Munteanu
- Faculty of Animal and Food Resources Engineering, "Ion Ionescu de la Brad" University of Life Sciences, M. Sadoveanu Alley, No. 8, 700490 Iasi, Romania
| | - Gabriela Frunză
- Faculty of Agriculture, "Ion Ionescu de la Brad" University of Life Sciences, M. Sadoveanu Alley, No. 3, 700490 Iasi, Romania
| | - Otilia Cristina Murariu
- Faculty of Agriculture, "Ion Ionescu de la Brad" University of Life Sciences, M. Sadoveanu Alley, No. 3, 700490 Iasi, Romania
| | - Elena-Iuliana Flocea
- Faculty of Agriculture, "Ion Ionescu de la Brad" University of Life Sciences, M. Sadoveanu Alley, No. 3, 700490 Iasi, Romania
| | - Paul-Corneliu Boișteanu
- Faculty of Animal and Food Resources Engineering, "Ion Ionescu de la Brad" University of Life Sciences, M. Sadoveanu Alley, No. 8, 700490 Iasi, Romania
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10
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Banica I, Allison G, Racine SE, Foti D, Weinberg A. All the Pringle ladies: Neural and behavioral responses to high-calorie food rewards in young adult women. Psychophysiology 2023; 60:e14188. [PMID: 36183246 DOI: 10.1111/psyp.14188] [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: 04/04/2022] [Revised: 08/01/2022] [Accepted: 08/22/2022] [Indexed: 01/25/2023]
Abstract
Reward processing is vital for learning and survival, and can be indexed using the Reward Positivity (RewP), an event-related potential (ERP) component that is larger for rewards than losses. Prior work suggests that heightened motivation to obtain reward, as well as greater reward value, is associated with an enhanced RewP. However, the extent to which internal and external factors modulate neural responses to rewards, and whether such neural responses motivate reward-seeking behavior, remains unclear. The present study investigated whether the degree to which a reward is salient to an individual's current motivational state modulates the RewP, and whether the RewP predicts motivated behaviors, in a sample of 133 women. To elicit the RewP, participants completed a forced-choice food reward guessing task. Data were also collected on food-related behaviors (i.e., type of food chosen, consumption of the food reward) and motivational salience factors (i.e., self-reported hunger, time since last meal, and subjective "liking" of food reward). Results showed that hungrier participants displayed an enhanced RewP compared to less hungry individuals. Further, self-reported snack liking interacted with RewP magnitude to predict behavior, such that when participants reported low levels of snack liking, those with a smaller RewP were more likely to consume their snacks than those with a larger RewP. Our data suggest that food-related motivational state may increase neural sensitivity to food reward in young women, and that neural markers of reward sensitivity might interact with subjective reward liking to predict real-world eating behavior.
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Affiliation(s)
- Iulia Banica
- Department of Psychology, McGill University, Montreal, Quebec, Canada
| | - Grace Allison
- Department of Psychology, McGill University, Montreal, Quebec, Canada
| | - Sarah E Racine
- Department of Psychology, McGill University, Montreal, Quebec, Canada
| | - Dan Foti
- Department of Psychological Sciences, Purdue University, West Lafayette, Indiana, USA
| | - Anna Weinberg
- Department of Psychology, McGill University, Montreal, Quebec, Canada
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11
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Time-varying SUVr reflects the dynamics of dopamine increases during methylphenidate challenges in humans. Commun Biol 2023; 6:166. [PMID: 36765261 PMCID: PMC9918528 DOI: 10.1038/s42003-023-04545-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 02/01/2023] [Indexed: 02/12/2023] Open
Abstract
Dopamine facilitates cognition and is implicated in reward processing. Methylphenidate, a dopamine transporter blocker widely used to treat attention-deficit/hyperactivity disorder, can have rewarding and addictive effects if injected. Since methylphenidate's brain uptake is much faster after intravenous than oral intake, we hypothesize that the speed of dopamine increases in the striatum in addition to its amplitude underly drug reward. To test this we use simulations and PET data of [11C]raclopride's binding displacement with oral and intravenous methylphenidate challenges in 20 healthy controls. Simulations suggest that the time-varying difference in standardized uptake value ratios for [11C]raclopride between placebo and methylphenidate conditions is a proxy for the time-varying dopamine increases induced by methylphenidate. Here we show that the dopamine increase induced by intravenous methylphenidate (0.25 mg/kg) in the striatum is significantly faster than that by oral methylphenidate (60 mg), and its time-to-peak is strongly associated with the intensity of the self-report of "high". We show for the first time that the "high" is associated with the fast dopamine increases induced by methylphenidate.
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12
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Salwa A, Zvolensky MJ, Kauffman B. The association between anxiety sensitivity and food cravings among individuals seeking treatment for weight-related behaviors. Eat Behav 2023; 48:101684. [PMID: 36463666 PMCID: PMC9974607 DOI: 10.1016/j.eatbeh.2022.101684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 11/11/2022] [Accepted: 11/21/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND A better understanding of risk-factors associated with state-like food cravings may be one clinically relevant component in an effort to better understand obesity. Existing work has shown anxiety sensitivity (AS) to be a significant risk factor for increased cravings across a variety of health behaviors (e.g., smoking, alcohol use). Yet, no work has examined the relationship between AS and state-like food cravings. Therefore, the current study sought to examine the association between AS and a variety of state-like food cravings, including: (1) an intense desire to eat, (2) anticipation of relief from negative states and feelings/improvement in mood that may result from eating, (3) obsessive preoccupation with food or lack of control over eating, and (4) craving as a physiological state. METHODS Participants included 161 (Mage = 31.58, SD = 10.71; 60.9 % female) individuals seeking treatment for weight-related behaviors. RESULTS Results indicated that elevated AS was associated with reinforcement-based and physiological food cravings. CONCLUSION Our findings indicate that there may be clinical utility in screening for AS among individuals seeking treatment for weight-related behaviors in efforts to better understand specific types of food craving.
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Affiliation(s)
- Aniqua Salwa
- Department of Psychology, University of Houston, Houston, TX, USA
| | - Michael J Zvolensky
- Department of Psychology, University of Houston, Houston, TX, USA; Department of Behavioral Science, The University of Texas MD Anderson Cancer Center, Houston, TX, USA; HEALTH Institute, University of Houston, Houston, TX, USA.
| | - Brooke Kauffman
- Department of Psychology, University of Houston, Houston, TX, USA
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13
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Okamoto K, Tanaka S, Suzuki Y, Shigematsu T, Kunieda K, Hojo K, Shimizu A, Ohno T, Fujishima I. Food appearance affects reward-related brain activity in healthy adults: a functional magnetic resonance imaging study. Int J Food Sci Nutr 2022; 73:1116-1123. [DOI: 10.1080/09637486.2022.2137784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Affiliation(s)
- Keishi Okamoto
- Department of Rehabilitation, Hamamatsu City Rehabilitation Hospital, Shizuoka, Japan
| | - Satoshi Tanaka
- Department of Psychology, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Yasutaka Suzuki
- Department of Radiological Technology, Seirei Mikatahara General Hospital, Shizuoka, Japan
| | - Takashi Shigematsu
- Department of Rehabilitation Medicine, Hamamatsu City Rehabilitation Hospital, Shizuoka, Japan
| | - Kenjiro Kunieda
- Department of Rehabilitation Medicine, Hamamatsu City Rehabilitation Hospital, Shizuoka, Japan
- Department of Neurology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Kyoko Hojo
- Department of Rehabilitation, Hamamatsu City Rehabilitation Hospital, Shizuoka, Japan
| | - Akio Shimizu
- Department of Nutrition, Hamamatsu City Rehabilitation Hospital, Shizuoka, Japan
| | - Tomohisa Ohno
- Department of Dentistry, Hamamatsu City Rehabilitation Hospital, Shizuoka,Japan
| | - Ichiro Fujishima
- Department of Rehabilitation Medicine, Hamamatsu City Rehabilitation Hospital, Shizuoka, Japan
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14
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Aukan MI, Brandsæter IØ, Skårvold S, Finlayson G, Nymo S, Coutinho S, Martins C. Changes in hedonic hunger and food reward after a similar weight loss induced by a very low-energy diet or bariatric surgery. Obesity (Silver Spring) 2022; 30:1963-1972. [PMID: 36046953 PMCID: PMC9804643 DOI: 10.1002/oby.23535] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/04/2022] [Accepted: 06/20/2022] [Indexed: 01/09/2023]
Abstract
OBJECTIVE The aim of this study was to compare changes in hedonic hunger and food reward in individuals with severe obesity achieving 10% to 15% weight loss with a very low-energy diet (VLED) alone or VLED and bariatric surgery. METHODS Patients scheduled for sleeve gastrectomy (SG) or Roux-en-Y gastric bypass (RYGB) initiated a VLED 2 weeks prior to surgery and continued the diet for 8 weeks postoperatively. BMI-matched controls underwent a VLED for 10 weeks. Hedonic hunger was assessed with the Power of Food Scale, and food reward with the Leeds Food Preference Questionnaire, pre and post intervention. RESULTS A total of 44 participants completed the study: 15 SG, 14 RYGB, and 15 controls (61%, 79% and 69% females, respectively; BMI: 40.5 ± 0.5 kg/m2 ; age: 43.9 ± 1.4 years). Average weight loss was 18.3 ± 0.6 kg (16%), comprising 13.5 ± 0.5 kg fat mass, with no significant differences between groups. Similar reductions in hedonic hunger were observed in all groups. Overall, food reward was similarly reduced in SG and RYGB groups, whereas controls showed little or no change. CONCLUSIONS Independent of modality, weight loss seems to reduce hedonic hunger, but bariatric surgery leads to several additional favorable changes in food reward and preferences.
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Affiliation(s)
- Marthe Isaksen Aukan
- Obesity Research Group, Department of Clinical and Molecular Medicine, Faculty of MedicineNorwegian University of Science and TechnologyTrondheimNorway
- Centre of Obesity and Innovation (ObeCe), Clinic of SurgerySt. Olav University HospitalTrondheimNorway
| | - Ingrid Øfsti Brandsæter
- Obesity Research Group, Department of Clinical and Molecular Medicine, Faculty of MedicineNorwegian University of Science and TechnologyTrondheimNorway
| | - Silje Skårvold
- Obesity Research Group, Department of Clinical and Molecular Medicine, Faculty of MedicineNorwegian University of Science and TechnologyTrondheimNorway
| | | | - Siren Nymo
- Obesity Research Group, Department of Clinical and Molecular Medicine, Faculty of MedicineNorwegian University of Science and TechnologyTrondheimNorway
- Centre of Obesity and Innovation (ObeCe), Clinic of SurgerySt. Olav University HospitalTrondheimNorway
- Nord‐Trøndelag Hospital Trust, Clinic of SurgeryNamsos HospitalNamsosNorway
| | - Silvia Coutinho
- Obesity Research Group, Department of Clinical and Molecular Medicine, Faculty of MedicineNorwegian University of Science and TechnologyTrondheimNorway
- Department of Public Health Nutrition at the Institute of Basic Medical Sciences, Faculty of MedicineUniversity of OsloOsloNorway
| | - Catia Martins
- Obesity Research Group, Department of Clinical and Molecular Medicine, Faculty of MedicineNorwegian University of Science and TechnologyTrondheimNorway
- Centre of Obesity and Innovation (ObeCe), Clinic of SurgerySt. Olav University HospitalTrondheimNorway
- Department of Nutrition SciencesUniversity of Alabama at BirminghamBirminghamAlabamaUSA
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15
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Yilbas B, Ozturk HI, Karadeniz PG. The relationship of chronotypes with food addiction, impulsivity, and attention deficit hyperactivity disorder symptoms in a sample of undergraduate university students. Chronobiol Int 2022; 39:1389-1398. [PMID: 35938448 DOI: 10.1080/07420528.2022.2109483] [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] [Indexed: 11/03/2022]
Abstract
The primary aim of the current study was to examine the frequency of food addiction in a group of university students and whether it differed among chronotypes. The second aim was to investigate the relationship of chronotypes with impulsivity, poor sleep quality and attention deficit/ hyperactivity disorder (ADHD) symptoms and to evaluate how this relationship affects food addiction. 328 university students were included in the study. Adult Attention Deficit/Hyperactivity Disorder Self-Report Scale (ASRS), Morningness-Eveningness Questionnaire (MEQ), Barratt Impulsiveness Scale-11 Short Form (BIS-11-SF), Yale Food Addiction Scale (YFAS) and Pittsburgh Sleep Quality Index (PSQI) were administered. Evening types scored significantly higher on ASRS and BIS-11 SF (p < .001, p < .001 respectively). Based on YFAS scores, 12.5% (n = 41) of the participants met the criteria for food addiction. The number of participants fulfilling the criteria for food addiction was higher among the evening types compared to intermediate and morning types (p = .006, p = .004, respectively). The mean ASRS and BIS-11 SF scores of the students who met the criteria for food addiction were significantly greater than those who did not (p < .001, p < .001, respectively). 63.4% (n = 26) of the students meeting the criteria for food addiction scored 6 or higher on PSQI versus 32.0% (n = 92) of the students who did not (p < .001). Mediation analysis showed that the direct effect of MEQ scores on food addiction was not significant (β = -0.009, p = .723). However, lower MEQ scores had an indirect effect on food addiction through higher ASRS scores (β = -0.027; p < .05 bias corrected and accelerated 95% CI -0.052 to -0.011). The results of the present study suggest that higher prevalence of food addiction among evening types seems to be related to higher occurrence of ADHD symptoms in these chronotypes. Further population-based studies with a larger sample size are needed to confirm our findings.
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Affiliation(s)
- Baris Yilbas
- Department of Psychiatry, SANKO University School of Medicine, Gaziantep, Turkey
| | - Halil Ibrahim Ozturk
- Department of Psychiatry, SANKO University School of Medicine, Gaziantep, Turkey
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16
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Urso D, van Wamelen DJ, Batzu L, Leta V, Staunton J, Pineda-Pardo JA, Logroscino G, Sharma J, Ray Chaudhuri K. Clinical trajectories and biomarkers for weight variability in early Parkinson's disease. NPJ Parkinsons Dis 2022; 8:95. [PMID: 35918350 PMCID: PMC9345874 DOI: 10.1038/s41531-022-00362-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 07/13/2022] [Indexed: 11/08/2022] Open
Abstract
Unexplained weight changes that occur in Parkinson's disease (PD), are often neglected and remain a poorly understood non-motor feature in patients with PD. A specific 'Park-weight' phenotype with low body weight has been described, and our aim was to evaluate the clinical and prognostic trajectories and biomarkers of weight variability in PD. We evaluated body weight-related biomarkers in 405 de novo PD patients and 187 healthy controls (HC) over a 5-year follow-up period from the PPMI database. Body-weight variability was defined as intra-individual variability in body weight between visits. PD patients were categorized as weight losers, gainers, or patients with stable weight. The differential progression of motor and non-motor clinical variables between groups was explored using linear mixed-effects models. Finally, we estimated longitudinal changes in weight as a function of baseline and longitudinal striatal presynaptic dopaminergic transporter imaging. PD patients presented a greater weight variability compared to HC (p = 0.003). Patients who developed weight loss had lower CSF amyloid-beta 1-42 (p = 0.009) at baseline. In addition, patients with weight loss showed a faster cognitive decline (p = 0.001), whereas patients with weight gain showed a slower motor progression (p = 0.001), compared to patients with stable weight. Baseline right striatal denervation was a predictor of weight variability in both PD patients and HC (p < 0.001). Similarly, weight variability in PD patients was associated with the progression of right striatal denervation (p < 0.001). Weight variability and specifically weight loss are more frequent in PD compared to HC, and are associated with specific motor, non-motor and cognitive progression patterns. A greater CSF amyloid burden was present at baseline in patients with subsequent weight loss. Presynaptic dopaminergic imaging in the right striatum may serve as a predictor of future weight changes in PD and HC.
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Affiliation(s)
- Daniele Urso
- King's College London, Department of Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, London, UK.
- Parkinson's Foundation Centre of Excellence, King's College Hospital, London, UK.
- Center for Neurodegenerative Diseases and the Aging Brain, Department of Clinical Research in Neurology, University of Bari 'Aldo Moro', "Pia Fondazione Cardinale G. Panico", Tricase, Lecce, Italy.
| | - Daniel J van Wamelen
- King's College London, Department of Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, London, UK
- Parkinson's Foundation Centre of Excellence, King's College Hospital, London, UK
- Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Department of Neurology, Nijmegen, the Netherlands
| | - Lucia Batzu
- King's College London, Department of Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, London, UK
- Parkinson's Foundation Centre of Excellence, King's College Hospital, London, UK
| | - Valentina Leta
- King's College London, Department of Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, London, UK
- Parkinson's Foundation Centre of Excellence, King's College Hospital, London, UK
| | - Juliet Staunton
- King's College London, Department of Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, London, UK
- Parkinson's Foundation Centre of Excellence, King's College Hospital, London, UK
| | - José A Pineda-Pardo
- HM CINAC. Centro Integral de Neurociencias AC. HM Hospitales. Fundación de Investigación HM Hospitales. HM Hospitales, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas Instituto Carlos III, Madrid, Spain
| | - Giancarlo Logroscino
- Center for Neurodegenerative Diseases and the Aging Brain, Department of Clinical Research in Neurology, University of Bari 'Aldo Moro', "Pia Fondazione Cardinale G. Panico", Tricase, Lecce, Italy
| | - Jagdish Sharma
- Geriatric Medicine (Movement Disorders), Lincoln County Hospital, Lincoln, United Kingdom, University of Lincoln, Lincoln, UK
| | - K Ray Chaudhuri
- King's College London, Department of Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, London, UK
- Parkinson's Foundation Centre of Excellence, King's College Hospital, London, UK
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17
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Tang Q, Assali DR, Güler AD, Steele AD. Dopamine systems and biological rhythms: Let's get a move on. Front Integr Neurosci 2022; 16:957193. [PMID: 35965599 PMCID: PMC9364481 DOI: 10.3389/fnint.2022.957193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 07/06/2022] [Indexed: 02/05/2023] Open
Abstract
How dopamine signaling regulates biological rhythms is an area of emerging interest. Here we review experiments focused on delineating dopamine signaling in the suprachiasmatic nucleus, nucleus accumbens, and dorsal striatum to mediate a range of biological rhythms including photoentrainment, activity cycles, rest phase eating of palatable food, diet-induced obesity, and food anticipatory activity. Enthusiasm for causal roles for dopamine in the regulation of circadian rhythms, particularly those associated with food and other rewarding events, is warranted. However, determining that there is rhythmic gene expression in dopamine neurons and target structures does not mean that they are bona fide circadian pacemakers. Given that dopamine has such a profound role in promoting voluntary movements, interpretation of circadian phenotypes associated with locomotor activity must be differentiated at the molecular and behavioral levels. Here we review our current understanding of dopamine signaling in relation to biological rhythms and suggest future experiments that are aimed at teasing apart the roles of dopamine subpopulations and dopamine receptor expressing neurons in causally mediating biological rhythms, particularly in relation to feeding, reward, and activity.
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Affiliation(s)
- Qijun Tang
- Department of Biology, University of Virginia, Charlottesville, VA, United States
| | - Dina R. Assali
- Department of Biological Sciences, California State Polytechnic University Pomona, Pomona, CA, United States
| | - Ali D. Güler
- Department of Biology, University of Virginia, Charlottesville, VA, United States
- Program in Fundamental Neuroscience, University of Virginia, Charlottesville, VA, United States
- Department of Neuroscience, School of Medicine, University of Virginia, Charlottesville, VA, United States
| | - Andrew D. Steele
- Department of Biological Sciences, California State Polytechnic University Pomona, Pomona, CA, United States
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18
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Alterations in Functional and Structural Connectivity of Basal Ganglia Network in Patients with Obesity. Brain Topogr 2022; 35:453-463. [PMID: 35780276 DOI: 10.1007/s10548-022-00906-z] [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: 09/29/2021] [Accepted: 06/15/2022] [Indexed: 11/02/2022]
Abstract
Obesity is related to overconsumption of high-calorie (HiCal) food, which is modulated by brain reward and inhibitory control circuitries. The basal ganglia (BG) are a key set of nuclei within the reward circuitry, but obesity-associated functional and structural abnormalities of BG have not been well studied. Resting-state functional MRI with independent component analysis (ICA) and probabilistic tractography were employed to investigate differences in BG-related functional-(FC) and structural connectivity (SC) between 32 patients with obesity (OB) and 35 normal-weight (NW) participants. Compared to NW, OB showed significantly lower FC strength in the caudate nucleus within the BG network, and seed-based FC analysis showed lower FC between caudate and dorsolateral prefrontal cortex (DLPFC), which was negatively correlated with craving for HiCal food cues. Further SC analysis revealed that OB showed lower SC than NW between left caudate and left DLPFC as measured with fractional anisotropy (FA). Alterations in FC and SC between caudate and DLPFC in obese patients, which highlights the role of BG network in modulating the balance between reward and inhibitory-control.
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19
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The effects of ninjin'yoeito on the electrophysiological properties of dopamine neurons in the ventral tegmental area/substantia nigra pars compacta and medium spiny neurons in the nucleus accumbens. Aging (Albany NY) 2022; 14:4634-4652. [PMID: 35660668 PMCID: PMC9217710 DOI: 10.18632/aging.204109] [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: 11/27/2021] [Accepted: 05/23/2022] [Indexed: 11/25/2022]
Abstract
The ventral tegmental area (VTA), substantia nigra pars compacta (SNpc) and nucleus accumbens (NAc) are involved in the regulation of appetite and motivational behaviors. A traditional Japanese (Kampo) medicine, ninjin'yoeito (NYT), has been reported to improve decreased motivation and anorexia in patients with Alzheimer's disease and apathy-like model mice. Thus, NYT may affect the activities of neurons in the VTA, SNpc and NAc. However, little is known about the underlying mechanisms of NYT. Here, we investigated the effects of NYT on the electrophysiological properties of dopaminergic neurons in the VTA and SNpc, as well as on those of medium spiny neurons (MSNs) in the NAc (core and shell subregions), by applying the patch-clamp technique in the brain slices. NYT reduced the resting membrane potential of VTA and SNpc dopaminergic neurons. In contrast, NYT increased the firing frequency of NAc MSNs accompanied by shortened first spike latency and interspike interval. Furthermore, NYT attenuated the inward rectification and sustained outward currents. In conclusion, NYT may directly influence the excitability of dopaminergic neurons in the VTA and SNpc, as well as MSNs in the NAc (core and shell). NYT may modulate dopamine signals in appetite and motivational behaviors.
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20
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Alves JM, Yunker AG, Luo S, Jann K, Angelo B, DeFendis A, Pickering TA, Smith A, Monterosso JR, Page KA. FGF21 response to sucrose is associated with BMI and dorsal striatal signaling in humans. Obesity (Silver Spring) 2022; 30:1239-1247. [PMID: 35491674 DOI: 10.1002/oby.23432] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/24/2022] [Accepted: 02/28/2022] [Indexed: 12/30/2022]
Abstract
OBJECTIVE This study examined associations between BMI and dietary sugar intake with sucrose-induced fibroblast growth factor 21 (FGF21) and whether circulating FGF21 is associated with brain signaling following sucrose ingestion in humans. METHODS A total of 68 adults (29 male; mean [SD), age 23.2 [3.8] years; BMI 27.1 [4.9] kg/m2 ) attended visits after a 12-hour fast. Plasma FGF21 was measured at baseline and at 15, 30, and 120 minutes after sucrose ingestion (75 g in 300 mL of water). Brain cerebral blood flow responses to sucrose were measured using arterial spin labeling magnetic resonance imaging. RESULTS Higher circulating FGF21 levels were associated with reduced blood flow in the striatum in response to sucrose (β = -7.63, p = 0.03). This association was greatest among persons with healthy weight (β = -15.70, p = 0.007) and was attenuated in people with overweight (β = -4.00, p = 0.63) and obesity (β = -12.45, p = 0.13). BMI was positively associated with FGF21 levels in response to sucrose (β = 0.53, p = 0.02). High versus low dietary sugar intake was associated with greater FGF21 responses to acute sucrose ingestion in individuals with healthy weight (β = 8.51, p = 0.04) but not in individuals with overweight or obesity (p > 0.05). CONCLUSIONS These correlative findings support evidence in animals showing that FGF21 acts on the brain to regulate sugar consumption through a negative feedback loop.
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Affiliation(s)
- Jasmin M Alves
- Division of Endocrinology, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
- Diabetes and Obesity Research Institute, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Alexandra G Yunker
- Division of Endocrinology, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
- Diabetes and Obesity Research Institute, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Shan Luo
- Division of Endocrinology, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
- Diabetes and Obesity Research Institute, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
- Department of Psychology, University of Southern California, Los Angeles, California, USA
| | - Kay Jann
- Mark & Mary Stevens Neuroimaging & Informatics Institute, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Brendan Angelo
- Division of Endocrinology, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
- Diabetes and Obesity Research Institute, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Alexis DeFendis
- Division of Endocrinology, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
- Diabetes and Obesity Research Institute, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Trevor A Pickering
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Alexandro Smith
- Division of Endocrinology, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
- Diabetes and Obesity Research Institute, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - John R Monterosso
- Department of Psychology, University of Southern California, Los Angeles, California, USA
| | - Kathleen A Page
- Division of Endocrinology, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
- Diabetes and Obesity Research Institute, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
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21
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Miguel PM, Bronauth LP, Deniz BF, Confortim HD, de Oliveira BC, Molle RD, Silveira PP, Pereira LO. Neonatal hypoxia-ischemia induces dysregulated feeding patterns and ethanol consumption that are alleviated by methylphenidate administration in rats. Exp Neurol 2022; 353:114071. [DOI: 10.1016/j.expneurol.2022.114071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 03/22/2022] [Accepted: 04/04/2022] [Indexed: 11/25/2022]
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22
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Plassmann H, Schelski DS, Simon M, Koban L. How we decide what to eat: Toward an interdisciplinary model of gut-brain interactions. WILEY INTERDISCIPLINARY REVIEWS. COGNITIVE SCIENCE 2022; 13:e1562. [PMID: 33977675 PMCID: PMC9286667 DOI: 10.1002/wcs.1562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 04/07/2021] [Accepted: 04/08/2021] [Indexed: 11/12/2022]
Abstract
Everyday dietary decisions have important short-term and long-term consequences for health and well-being. How do we decide what to eat, and what physiological and neurobiological systems are involved in those decisions? Here, we integrate findings from thus-far separate literatures: (a) the cognitive neuroscience of dietary decision-making, and (b) growing evidence of gut-brain interactions and especially influences of the gut microbiome on diet and health outcomes. We review findings that suggest that dietary decisions and food consumption influence nutrient sensing, homeostatic signaling in the gut, and the composition of the gut microbiome. In turn, the microbiome can influence host health and behavior. Through reward signaling pathways, the microbiome could potentially affect food and drink decisions. Such bidirectional links between gut microbiome and the brain systems underlying dietary decision-making may lead to self-reinforcing feedback loops that determine long-term dietary patterns, body mass, and health outcomes. This article is categorized under: Economics > Individual Decision-Making Psychology > Brain Function and Dysfunction Psychology > Reasoning and Decision Making.
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Affiliation(s)
- Hilke Plassmann
- Marketing AreaINSEADFontainebleauFrance
- Paris Brain Institute (ICM)INSERM U 1127, CNRS UMR 7225, Sorbonne UniversitéParisFrance
| | - Daniela Stephanie Schelski
- Center for Economics and NeuroscienceUniversity of BonnBonnGermany
- Institute of Experimental Epileptology and Cognition Research, University of Bonn Medical CenterBonnGermany
| | - Marie‐Christine Simon
- Institute of Nutrition and Food Science (IEL), Nutrition and Microbiota, University of BonnBonnGermany
| | - Leonie Koban
- Marketing AreaINSEADFontainebleauFrance
- Paris Brain Institute (ICM)INSERM U 1127, CNRS UMR 7225, Sorbonne UniversitéParisFrance
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23
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Ge BB, Jann K, Luo S, Yunker AG, Jones S, Angelo B, Alves JM, Defendis A, Monterosso JR, Xiang AH, Page KA. Brain responses to glucose ingestion are greater in children than adults and are associated with overweight and obesity. Obesity (Silver Spring) 2021; 29:2081-2088. [PMID: 34724360 DOI: 10.1002/oby.23296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/27/2021] [Accepted: 08/30/2021] [Indexed: 11/11/2022]
Abstract
OBJECTIVE This study investigated whether brain regions involved in the regulation of food intake respond differently to glucose ingestion in children and adults and the relationship between brain responses and weight status. METHODS Data included 87 children (ages 7-11 years) and 94 adults (ages 18-35 years) from two cohorts. Healthy weight, overweight, and obesity were defined by Centers for Disease Control and Prevention criteria. Brain responses to glucose were determined by measuring cerebral blood flow using arterial spin labeling magnetic resonance imaging in brain regions involved in the regulation of eating behavior. RESULTS Children showed significantly larger increases in brain responses to glucose than adults in the dorsal striatum (p < 0.01), insula (p < 0.01), hippocampus (p < 0.01), and dorsal-lateral prefrontal cortex (p < 0.01). Responses to glucose in the dorsal striatum (odds ratio [OR] = 1.52, 95% CI 1.05-2.20; p = 0.03), hippocampus (OR = 1.51, 95% CI: 1.02-2.22; p = 0.04), insula (OR = 1.64, 95% CI: 1.11-2.42; p = 0.01), and orbitofrontal cortex (OR = 1.63 95% CI: 1.12-2.39; p = 0.01) were positively associated with overweight or obesity, independent of age group. CONCLUSIONS Children have greater brain responses to glucose ingestion than adults in regions involved in eating behavior, and these responses are associated with weight status.
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Affiliation(s)
- Brandon B Ge
- Division of Endocrinology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
- Diabetes and Obesity Research Institute, University of Southern California, Los Angeles, California, USA
| | - Kay Jann
- Mark & Mary Stevens Neuroimaging & Informatics Institute, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Shan Luo
- Division of Endocrinology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
- Diabetes and Obesity Research Institute, University of Southern California, Los Angeles, California, USA
- Department of Psychology, University of Southern California, Los Angeles, California, USA
| | - Alexandra G Yunker
- Division of Endocrinology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
- Diabetes and Obesity Research Institute, University of Southern California, Los Angeles, California, USA
| | - Sabrina Jones
- Division of Endocrinology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
- Diabetes and Obesity Research Institute, University of Southern California, Los Angeles, California, USA
| | - Brendan Angelo
- Division of Endocrinology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
- Diabetes and Obesity Research Institute, University of Southern California, Los Angeles, California, USA
| | - Jasmin M Alves
- Division of Endocrinology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
- Diabetes and Obesity Research Institute, University of Southern California, Los Angeles, California, USA
| | - Alexis Defendis
- Division of Endocrinology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
- Diabetes and Obesity Research Institute, University of Southern California, Los Angeles, California, USA
| | - John R Monterosso
- Department of Psychology, University of Southern California, Los Angeles, California, USA
- Neuroscience Graduate Program, University of Southern California, Los Angeles, California, USA
| | - Anny H Xiang
- Department of Research and Evaluation, Kaiser Permanente Southern California, Los Angeles, California, USA
| | - Kathleen A Page
- Division of Endocrinology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
- Diabetes and Obesity Research Institute, University of Southern California, Los Angeles, California, USA
- Neuroscience Graduate Program, University of Southern California, Los Angeles, California, USA
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24
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Zhou WR, Wang M, Dong HH, Zhang Z, Du X, Potenza MN, Dong GH. Imbalanced sensitivities to primary and secondary rewards in internet gaming disorder. J Behav Addict 2021; 10:990-1004. [PMID: 34727087 PMCID: PMC8987426 DOI: 10.1556/2006.2021.00072] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 07/14/2021] [Accepted: 10/04/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Internet gaming disorder (IGD) is a type of behavioral addiction characterized by poorly controlled and interfering patterns of game playing. Studies have suggested that the IGD is usually accompanied by increased desire or craving for gaming, suggesting that secondary rewards related to gaming may become more salient than those for primary rewards like food. However, this hypothesis has not been formally tested and potential neural mechanisms remain unclear. METHODS This is a functional magnetic resonance imaging (fMRI) study. Twenty-one IGD subjects and 23 matched individuals with recreational game use (RGU) were scanned when exposed to gaming (secondary rewards), food (primary rewards) and neutral cues. Group-by-cue-type interaction analyses and subsequent within-group analyses for fMRI data were performed and seed-based functional connectivity (FC) analyses explored further potential neural features. RESULTS IGD subjects' subjective craving responses to gaming cues were higher than to food cues, while the opposite was observed in RGU subjects. Group-by-cue interaction effects implicated the precuneus and precuneus-caudate FC. Simple effect analysis showed that for IGD subjects, gaming-related cues elicited higher FC in precuneus-caudate relationships than did food-related cues. In the RGU subjects, the opposite was observed. Significant correlations were found between brain features and craving scores. CONCLUSIONS These results support the hypothesis regarding imbalances in sensitivities to different types of reward in IGD, and suggest neural mechanisms by which craving for gaming may make secondary rewards more salient than primary ones, thus promoting participation in addictive patterns of gaming.
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Affiliation(s)
- Wei-Ran Zhou
- Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang Province, PR China
- Institutes of Psychological Sciences, Hangzhou Normal University, China
- Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, Zhejiang Province, PR China
| | - Min Wang
- Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang Province, PR China
| | - Hao-Hao Dong
- Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang Province, PR China
| | - Zhaojie Zhang
- Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang Province, PR China
- Institutes of Psychological Sciences, Hangzhou Normal University, China
- Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, Zhejiang Province, PR China
| | - Xiaoxia Du
- School of Psychology, Shanghai University of Sport, Shanghai, PR China
| | - Marc N. Potenza
- Department of Psychiatry and the Child Study Center, Yale University School of Medicine, New Haven, CT, USA
- Department of Neuroscience, Yale University, New Haven, CT, USA
- Connecticut Council on Problem Gambling, Wethersfield, CT, USA
| | - Guang-Heng Dong
- Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang Province, PR China
- Institutes of Psychological Sciences, Hangzhou Normal University, China
- Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, Zhejiang Province, PR China
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25
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Striatal Dopamine Transporter Availability Is Not Associated with Food Craving in Lean and Obese Humans; a Molecular Imaging Study. Brain Sci 2021; 11:brainsci11111428. [PMID: 34827426 PMCID: PMC8615750 DOI: 10.3390/brainsci11111428] [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: 09/20/2021] [Revised: 10/22/2021] [Accepted: 10/26/2021] [Indexed: 11/17/2022] Open
Abstract
Brain dopamine signaling is essential for the motivation to eat, and obesity is associated with altered dopaminergic signaling and increased food craving. We used molecular neuroimaging to explore whether striatal dopamine transporter (DAT) availability is associated with craving as measured with the General Food Craving Questionnaire-Trait (G-FCQ-T). We here show that humans with obesity (n = 34) experienced significantly more craving for food compared with lean subjects (n = 32), but food craving did not correlate significantly with striatal DAT availability as assessed with 123I-FP-CIT single-photon emission computed tomography. We conclude that food craving is increased in obesity, but the scores for food craving are not related to changes in striatal DAT availability.
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26
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Salem V, Demetriou L, Behary P, Alexiadou K, Scholtz S, Tharakan G, Miras AD, Purkayastha S, Ahmed AR, Bloom SR, Wall MB, Dhillo WS, Tan TMM. Weight Loss by Low-Calorie Diet Versus Gastric Bypass Surgery in People With Diabetes Results in Divergent Brain Activation Patterns: A Functional MRI Study. Diabetes Care 2021; 44:1842-1851. [PMID: 34158363 PMCID: PMC8385466 DOI: 10.2337/dc20-2641] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 05/18/2021] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Weight loss achieved with very-low-calorie diets (VLCDs) can produce remission of type 2 diabetes (T2D), but weight regain very often occurs with reintroduction of higher calorie intakes. In contrast, bariatric surgery produces clinically significant and durable weight loss, with diabetes remission that translates into reductions in mortality. We hypothesized that in patients living with obesity and prediabetes/T2D, longitudinal changes in brain activity in response to food cues as measured using functional MRI would explain this difference. RESEARCH DESIGN AND METHODS Sixteen participants underwent gastric bypass surgery, and 19 matched participants undertook a VLCD (meal replacement) for 4 weeks. Brain responses to food cues and resting-state functional connectivity were assessed with functional MRI pre- and postintervention and compared across groups. RESULTS We show that Roux-en-Y gastric bypass surgery (RYGB) results in three divergent brain responses compared with VLCD-induced weight loss: 1) VLCD resulted in increased brain reward center food cue responsiveness, whereas in RYGB, this was reduced; 2) VLCD resulted in higher neural activation of cognitive control regions in response to food cues associated with exercising increased cognitive restraint over eating, whereas RYGB did not; and 3) a homeostatic appetitive system (centered on the hypothalamus) is better engaged following RYGB-induced weight loss than VLCD. CONCLUSIONS Taken together, these findings point to divergent brain responses to different methods of weight loss in patients with diabetes, which may explain weight regain after a short-term VLCD in contrast to enduring weight loss after RYGB.
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Affiliation(s)
- Victoria Salem
- Department of Digestion, Metabolism and Reproduction, Imperial College London, London, U.K
| | | | - Preeshila Behary
- Department of Digestion, Metabolism and Reproduction, Imperial College London, London, U.K
| | - Kleopatra Alexiadou
- Department of Digestion, Metabolism and Reproduction, Imperial College London, London, U.K
| | - Samantha Scholtz
- West London Mental Health National Health Service Trust, London, U.K
| | - George Tharakan
- Department of Digestion, Metabolism and Reproduction, Imperial College London, London, U.K
| | - Alexander D Miras
- Department of Digestion, Metabolism and Reproduction, Imperial College London, London, U.K
| | - Sanjay Purkayastha
- Department of Surgery and Cancer, Imperial College Healthcare National Health Service Trust, London, U.K
| | - Ahmed R Ahmed
- Department of Surgery and Cancer, Imperial College Healthcare National Health Service Trust, London, U.K
| | - Stephen R Bloom
- Department of Digestion, Metabolism and Reproduction, Imperial College London, London, U.K
| | - Matthew B Wall
- Department of Digestion, Metabolism and Reproduction, Imperial College London, London, U.K.,Invicro London, Hammersmith Hospital, London, U.K
| | - Waljit S Dhillo
- Department of Digestion, Metabolism and Reproduction, Imperial College London, London, U.K
| | - Tricia M-M Tan
- Department of Digestion, Metabolism and Reproduction, Imperial College London, London, U.K.
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Macedo-Lima M, Remage-Healey L. Dopamine Modulation of Motor and Sensory Cortical Plasticity among Vertebrates. Integr Comp Biol 2021; 61:316-336. [PMID: 33822047 PMCID: PMC8600016 DOI: 10.1093/icb/icab019] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Goal-directed learning is a key contributor to evolutionary fitness in animals. The neural mechanisms that mediate learning often involve the neuromodulator dopamine. In higher order cortical regions, most of what is known about dopamine's role is derived from brain regions involved in motivation and decision-making, while significantly less is known about dopamine's potential role in motor and/or sensory brain regions to guide performance. Research on rodents and primates represents over 95% of publications in the field, while little beyond basic anatomy is known in other vertebrate groups. This significantly limits our general understanding of how dopamine signaling systems have evolved as organisms adapt to their environments. This review takes a pan-vertebrate view of the literature on the role of dopamine in motor/sensory cortical regions, highlighting, when available, research on non-mammalian vertebrates. We provide a broad perspective on dopamine function and emphasize that dopamine-induced plasticity mechanisms are widespread across all cortical systems and associated with motor and sensory adaptations. The available evidence illustrates that there is a strong anatomical basis-dopamine fibers and receptor distributions-to hypothesize that pallial dopamine effects are widespread among vertebrates. Continued research progress in non-mammalian species will be crucial to further our understanding of how the dopamine system evolved to shape the diverse array of brain structures and behaviors among the vertebrate lineage.
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Affiliation(s)
- Matheus Macedo-Lima
- Neuroscience and Behavior Program, Center for Neuroendocrine Studies, University of Massachusetts Amherst, Amherst, MA 01003, USA
- CAPES Foundation, Ministry of Education of Brazil, 70040-031 Brasília, Brazil
| | - Luke Remage-Healey
- Neuroscience and Behavior Program, Center for Neuroendocrine Studies, University of Massachusetts Amherst, Amherst, MA 01003, USA
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28
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Pak K, Seo S, Lee MJ, Kim K, Suh S, Lee J, Kim SJ, Kim IJ. Hedonic Rating of Sucrose Is Sub-Regionally Associated with Striatal Dopamine Transporter in Humans. Neuroendocrinology 2021; 112:338-344. [PMID: 34034262 DOI: 10.1159/000517319] [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: 04/14/2021] [Accepted: 05/20/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND Eating behavior is determined by both homeostatic and hedonic values. OBJECTIVE We investigated the association of hedonic value with striatal dopamine transporter (DAT) availability sub-regionally. METHOD An intravenous bolus injection of 18F-FP-CIT was administered after the infusion of glucose or placebo, and the emission data were acquired over 90 min. DAT availability and binding potential (BPND) were measured via the simplified reference tissue method. Subjects were assessed with sensory taste test of sucrose solutions. The "most liked" sucrose concentration (%) was determined as the hedonic rating for sucrose. RESULTS Twenty healthy males participated in this study. After glucose loading, BPNDs of putamen significantly increased, and those of caudate nucleus showed the increasing trend, while those of ventral striatum were not significantly different. After glucose loading, the "most liked" sucrose concentration (%) was negatively associated with BPNDs of caudate nucleus and showed the trend of positive association with those from ventral striatum. Slopes of regression lines were significantly different according to the sub-regions of striatum. CONCLUSION We have highlighted that striatal DAT increased after glucose loading in dorsal striatum, not in ventral striatum. These changes of striatal DAT were sub-regionally associated with the hedonic rating of sucrose from each subject.
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Affiliation(s)
- Kyoungjune Pak
- Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital and School of Medicine, Pusan National University, Busan, Republic of Korea
| | - Seongho Seo
- Department of Electronic Engineering, Pai Chai University, Daejeon, Republic of Korea
| | - Myung Jun Lee
- Department of Neurology, Pusan National University Hospital, Busan, Republic of Korea
| | - Keunyoung Kim
- Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital and School of Medicine, Pusan National University, Busan, Republic of Korea
| | - Sunghwan Suh
- Department of Internal Medicine, Dong-A University College of Medicine, Busan, Republic of Korea
| | - Jeehyun Lee
- Department of Food Science and Nutrition, Pusan National University, Busan, Republic of Korea
| | - Seong-Jang Kim
- Department of Nuclear Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - In Joo Kim
- Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital and School of Medicine, Pusan National University, Busan, Republic of Korea
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Saruco E, Pleger B. A Systematic Review of Obesity and Binge Eating Associated Impairment of the Cognitive Inhibition System. Front Nutr 2021; 8:609012. [PMID: 33996871 PMCID: PMC8116510 DOI: 10.3389/fnut.2021.609012] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 03/09/2021] [Indexed: 02/04/2023] Open
Abstract
Altered functioning of the inhibition system and the resulting higher impulsivity are known to play a major role in overeating. Considering the great impact of disinhibited eating behavior on obesity onset and maintenance, this systematic review of the literature aims at identifying to what extent the brain inhibitory networks are impaired in individuals with obesity. It also aims at examining whether the presence of binge eating disorder leads to similar although steeper neural deterioration. We identified 12 studies that specifically assessed impulsivity during neuroimaging. We found a significant alteration of neural circuits primarily involving the frontal and limbic regions. Functional activity results show BMI-dependent hypoactivity of frontal regions during cognitive inhibition and either increased or decreased patterns of activity in several other brain regions, according to their respective role in inhibition processes. The presence of binge eating disorder results in further aggravation of those neural alterations. Connectivity results mainly report strengthened connectivity patterns across frontal, parietal, and limbic networks. Neuroimaging studies suggest significant impairment of various neural circuits involved in inhibition processes in individuals with obesity. The elaboration of accurate therapeutic neurocognitive interventions, however, requires further investigations, for a deeper identification and understanding of obesity-related alterations of the inhibition brain system.
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Affiliation(s)
- Elodie Saruco
- Department of Neurology, BG University Clinic Bergmannsheil, Ruhr-University Bochum, Bochum, Germany
| | - Burkhard Pleger
- Department of Neurology, BG University Clinic Bergmannsheil, Ruhr-University Bochum, Bochum, Germany
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30
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What Do You Want to Eat? Influence of Menu Description and Design on Consumer's Mind: An fMRI Study. Foods 2021; 10:foods10050919. [PMID: 33922036 PMCID: PMC8170898 DOI: 10.3390/foods10050919] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/15/2021] [Accepted: 04/19/2021] [Indexed: 11/21/2022] Open
Abstract
The main objective of this research was to analyse the active regions when processing dishes with a pleasant (vs. unpleasant) design and the effect of the previously read rational (vs. emotional) description when visualising the dish. The functional magnetic resonance image technique was used for the study. The results showed that participants who visualised pleasant vs. unpleasant dishes became active in several domains (e.g., attention, cognition and reward). On the other side, visualisation of unpleasant dishes activated stronger regions linked to inhibition, rejection, and related ambiguity. We found that subjects who read rational descriptions when visualising pleasant dishes activated regions related to congruence integration, while subjects who visualised emotional descriptions showed an increased neuronal response to pleasant dishes in the regions related to memory, emotion and congruence.
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31
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Converging vulnerability factors for compulsive food and drug use. Neuropharmacology 2021; 196:108556. [PMID: 33862029 DOI: 10.1016/j.neuropharm.2021.108556] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 03/29/2021] [Accepted: 04/03/2021] [Indexed: 12/12/2022]
Abstract
Highly palatable foods and substance of abuse have intersecting neurobiological, metabolic and behavioral effects relevant for understanding vulnerability to conditions related to food (e.g., obesity, binge eating disorder) and drug (e.g., substance use disorder) misuse. Here, we review data from animal models, clinical populations and epidemiological evidence in behavioral, genetic, pathophysiologic and therapeutic domains. Results suggest that consumption of highly palatable food and drugs of abuse both impact and conversely are regulated by metabolic hormones and metabolic status. Palatable foods high in fat and/or sugar can elicit adaptation in brain reward and withdrawal circuitry akin to substances of abuse. Intake of or withdrawal from palatable food can impact behavioral sensitivity to drugs of abuse and vice versa. A robust literature suggests common substrates and roles for negative reinforcement, negative affect, negative urgency, and impulse control deficits, with both highly palatable foods and substances of abuse. Candidate genetic risk loci shared by obesity and alcohol use disorders have been identified in molecules classically associated with both metabolic and motivational functions. Finally, certain drugs may have overlapping therapeutic potential to treat obesity, diabetes, binge-related eating disorders and substance use disorders. Taken together, data are consistent with the hypotheses that compulsive food and substance use share overlapping, interacting substrates at neurobiological and metabolic levels and that motivated behavior associated with feeding or substance use might constitute vulnerability factors for one another. This article is part of the special issue on 'Vulnerabilities to Substance Abuse'.
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32
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Stopyra MA, Friederich HC, Mönning E, Lavandier N, Bendszus M, Herzog W, Simon JJ. The influence of homeostatic mechanisms on neural regulation of food craving in anorexia nervosa. Psychol Med 2021; 51:1011-1019. [PMID: 31931900 PMCID: PMC8161429 DOI: 10.1017/s0033291719003970] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 09/30/2019] [Accepted: 12/11/2019] [Indexed: 11/07/2022]
Abstract
BACKGROUND Restrictive food intake in anorexia nervosa (AN) has been related to an overactive cognitive control network inhibiting intuitive motivational responses to food stimuli. However, the influence of short-term homeostatic signaling on the neural regulation of cue-induced food craving in AN is still unclear. METHODS Twenty-five women with AN and 25 matched normal-weight women were examined on two occasions after receiving either glucose or water directly into their stomach using a nasogastric tube. Participants were blinded to the type of infusion. An event-related functional magnetic resonance imaging paradigm was used to investigate the effect of intestinal glucose load on neural processing during either simple viewing or distraction from food stimuli. RESULTS Neural differences between patients with AN and normal-weight participants were found during the distraction from food stimuli, but not during the viewing condition. When compared to controls, patients with AN displayed increased activation during food distraction in the left parietal lobule/precuneus and fusiform gyrus after water infusion and decreased activation in ventromedial prefrontal and cingulate regions after intestinal glucose load. CONCLUSIONS Independent of the cephalic phase and the awareness of caloric intake, homeostatic influences trigger disorder-specific reactions in AN. Food distraction in patients with AN is associated with either excessive higher-order cognitive control during physiological hunger or decreased internally directed attention after intestinal glucose load. These findings suggest that food distraction plays an important role in the psychopathology of AN. This study was registered on clinicaltrials.gov with identifier: NCT03075371.
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Affiliation(s)
- Marion A. Stopyra
- Department of General Internal Medicine and Psychosomatics, University Hospital Heidelberg, Heidelberg, Germany
- Psychological Institute, Heidelberg University, Heidelberg, Germany
| | - Hans-Christoph Friederich
- Department of General Internal Medicine and Psychosomatics, University Hospital Heidelberg, Heidelberg, Germany
| | - Esther Mönning
- Department of General Internal Medicine and Psychosomatics, University Hospital Heidelberg, Heidelberg, Germany
| | - Nora Lavandier
- Department of General Internal Medicine and Psychosomatics, University Hospital Heidelberg, Heidelberg, Germany
- Department of Neuropediatrics, University Hospital Essen, Essen, Germany
| | - Martin Bendszus
- Department of Neuroradiology, University Hospital Heidelberg, Heidelberg, Germany
| | - Wolfgang Herzog
- Department of General Internal Medicine and Psychosomatics, University Hospital Heidelberg, Heidelberg, Germany
| | - Joe J. Simon
- Department of General Internal Medicine and Psychosomatics, University Hospital Heidelberg, Heidelberg, Germany
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Martínez-Magaña JJ, Genis-Mendoza AD, Villatoro Velázquez JA, Bustos-Gamiño M, Juárez-Rojop IE, Tovilla-Zarate CA, Sarmiento E, Saucedo E, Rodríguez-Mayoral O, Fleiz-Bautista C, Camarena B, Aguilar A, Gonzalez-Castro TB, Medina-Mora ME, Nicolini H. Genome-wide association study of psychiatric and substance use comorbidity in Mexican individuals. Sci Rep 2021; 11:6771. [PMID: 33762635 PMCID: PMC7990941 DOI: 10.1038/s41598-021-85881-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 03/08/2021] [Indexed: 01/31/2023] Open
Abstract
The combination of substance use and psychiatric disorders is one of the most common comorbidities. The objective of this study was to perform a genome-wide association study of this comorbidity (Com), substance use alone (Subs), and psychiatric symptomatology alone (Psych) in the Mexican population. The study included 3914 individuals of Mexican descent. Genotyping was carried out using the PsychArray microarray and genome-wide correlations were calculated. Genome-wide associations were analyzed using multiple logistic models, polygenic risk scores (PRSs) were evaluated using multinomial models, and vertical pleiotropy was evaluated by generalized summary-data-based Mendelian randomization. Brain DNA methylation quantitative loci (brain meQTL) were also evaluated in the prefrontal cortex. Genome-wide correlation and vertical pleiotropy were found between all traits. No genome-wide association signals were found, but 64 single-nucleotide polymorphism (SNPs) reached nominal associations (p < 5.00e-05). The SNPs associated with each trait were independent, and the individuals with high PRSs had a higher prevalence of tobacco and alcohol use. In the multinomial models all of the PRSs (Subs-PRS, Com-PRS, and Psych-PRS) were associated with all of the traits. Brain meQTL of the Subs-associated SNPs had an effect on the genes enriched in insulin signaling pathway, and that of the Psych-associated SNPs had an effect on the Fc gamma receptor phagocytosis pathway.
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Affiliation(s)
- José Jaime Martínez-Magaña
- División Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tabasco, Mexico
- Laboratorio de Genómica de Enfermedades Psiquiátricas y Neurodegenerativas, Instituto Nacional de Medicina Genómica, Mexico City, Mexico
| | - Alma Delia Genis-Mendoza
- Laboratorio de Genómica de Enfermedades Psiquiátricas y Neurodegenerativas, Instituto Nacional de Medicina Genómica, Mexico City, Mexico
- Hospital Psiquiátrico Infantil Juan N. Navarro, Servicios de Atención Psiquiátrica, Mexico City, Mexico
| | - Jorge Ameth Villatoro Velázquez
- Unidad de Encuestas y Análisis de Datos, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz (INPRFM), Mexico City, Mexico
- Seminario de Estudios Sobre la Globalidad, Facultad de Medicina, Universidad Nacional Autónoma de Mexico (UNAM), Mexico City, Mexico
| | - Marycarmen Bustos-Gamiño
- Unidad de Encuestas y Análisis de Datos, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz (INPRFM), Mexico City, Mexico
| | - Isela Esther Juárez-Rojop
- División Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tabasco, Mexico
| | | | - Emmanuel Sarmiento
- Hospital Psiquiátrico Infantil Juan N. Navarro, Servicios de Atención Psiquiátrica, Mexico City, Mexico
| | - Erasmo Saucedo
- Centro de Neurociencias Avanzadas, Departamento de Psiquiátrica del Hospital Psiquiátrico, Universitario Dr. José Eleuterio González, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, Mexico
| | | | - Clara Fleiz-Bautista
- Unidad de Encuestas y Análisis de Datos, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz (INPRFM), Mexico City, Mexico
- Seminario de Estudios Sobre la Globalidad, Facultad de Medicina, Universidad Nacional Autónoma de Mexico (UNAM), Mexico City, Mexico
| | - Beatriz Camarena
- Laboratorio de Farmacogenética, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz (INPRFM), Mexico City, Mexico
| | - Alejandro Aguilar
- Laboratorio de Farmacogenética, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz (INPRFM), Mexico City, Mexico
| | - Thelma Beatriz Gonzalez-Castro
- División Multidisciplinaria de Jalpa de Méndez, Universidad Juárez Autónoma de Tabasco, Jalpa de Méndez, Tabasco, Mexico
| | - María Elena Medina-Mora
- Unidad de Encuestas y Análisis de Datos, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz (INPRFM), Mexico City, Mexico
- Seminario de Estudios Sobre la Globalidad, Facultad de Medicina, Universidad Nacional Autónoma de Mexico (UNAM), Mexico City, Mexico
| | - Humberto Nicolini
- División Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tabasco, Mexico.
- Instituto Nacional de Medicina Genómica, Periférico Sur 4809, Arenal Tepepan, Tlalpan, 14610, Mexico City, Mexico.
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Matuskey D, Angarita GA, Worhunsky P, Koohsari S, Gravel P, Pittman B, Gaiser EC, Gallezot JD, Nabulsi N, Huang Y, Carson RE, Potenza MN, Malison RT. Dopamine D 2/3 receptor availability in cocaine use disorder individuals with obesity as measured by [ 11C]PHNO PET. Drug Alcohol Depend 2021; 220:108514. [PMID: 33454626 PMCID: PMC7889720 DOI: 10.1016/j.drugalcdep.2021.108514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 12/14/2020] [Accepted: 12/14/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND Positron emission tomography (PET) work with the dopamine D3 receptor (D3R) preferring ligand [11C]PHNO in obese individuals has demonstrated higher binding and positive correlations with body mass index (BMI) in otherwise healthy individuals. These findings implicated brain reward areas including the substantia nigra/ventral tegmental area (SN/VTA) and pallidum. In cocaine use disorder (CUD), similar SN/VTA binding profiles have been found compared to healthy control subjects. This study investigates whether BMI-[11C]PHNO relationships are similar in individuals with CUD. METHODS Non-obese CUD subjects (N = 12) were compared to age-matched obese CUD subjects (N = 14). All subjects underwent [11C]PHNO acquisition using a High Resolution Research Tomograph PET scanner. Parametric images were computed using the simplified reference tissue model with cerebellum as the reference region. [11C]PHNO measures of receptor availability were calculated and expressed as non-displaceable binding potential (BPND). RESULTS In between-group analyses, D2/3R availability in non-obese and obese CUD groups was not significantly different overall. BMI was inversely correlated withBPND in the SN/VTA (r = -0.45, p = 0.02 uncorrected) in all subjects. CONCLUSION These data suggest that obesity in CUD was not associated with significant differences in D2/3R availability. This in contrast to previous findings in non-CUD individuals that found increased availability of D3Rs in the SN/VTA associated with obesity. These findings could potentially reflect dysregulation of D3R in CUD, impacting how affected individuals respond to natural stimuli such as food.
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Affiliation(s)
- David Matuskey
- Department of Radiology and Biomedical Imaging, Yale University, New Haven, CT, United States; Department of Psychiatry, Yale University, New Haven, CT, United States; Department of Neurology, Yale University, New Haven, CT, United States.
| | - Gustavo A. Angarita
- Department of Psychiatry, Yale University, New Haven, CT,Connecticut Mental Health Center, New Haven, CT
| | | | - Sheida Koohsari
- Department of Radiology and Biomedical Imaging, Yale University, New Haven, CT
| | - Paul Gravel
- Department of Radiology and Biomedical Imaging, Yale University, New Haven, CT
| | - Brian Pittman
- Department of Psychiatry, Yale University, New Haven, CT
| | - Edward C. Gaiser
- Department of Radiology and Biomedical Imaging, Yale University, New Haven, CT
| | | | - Nabeel Nabulsi
- Department of Radiology and Biomedical Imaging, Yale University, New Haven, CT
| | - Yiyun Huang
- Department of Radiology and Biomedical Imaging, Yale University, New Haven, CT
| | - Richard E. Carson
- Department of Radiology and Biomedical Imaging, Yale University, New Haven, CT
| | - Marc N. Potenza
- Department of Psychiatry, Yale University, New Haven, CT,Connecticut Mental Health Center, New Haven, CT.,Connecticut Council on Problem Gambling, Wethersfield, CT.,Department of Neuroscience, Yale University, New Haven, CT
| | - Robert T. Malison
- Department of Psychiatry, Yale University, New Haven, CT,Connecticut Mental Health Center, New Haven, CT
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35
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Radoman M, Crane NA, Gorka SM, Weafer J, Langenecker SA, de Wit H, Phan KL. Striatal activation to monetary reward is associated with alcohol reward sensitivity. Neuropsychopharmacology 2021; 46:343-350. [PMID: 32505126 PMCID: PMC7852684 DOI: 10.1038/s41386-020-0728-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 05/08/2020] [Accepted: 05/28/2020] [Indexed: 12/16/2022]
Abstract
One well-known phenotypic risk factor for the development of alcohol use disorder is sensitivity to the rewarding effects of alcohol. In the present study, we examined whether individuals who are sensitive to alcohol reward are also sensitive to nondrug rewards, thereby reflecting a broader individual difference risk factor. Specifically, we tested the hypothesis that subjective response to acute rewarding effects of alcohol would be related to neural activation during monetary reward receipt relative to loss (in the absence of alcohol). Community-recruited healthy young social drinkers (N = 58) completed four laboratory sessions in which they received alcohol (0.8 g/kg) and placebo in alternating order under double-blind conditions, providing self-report measures of subjective response to alcohol at regular intervals. At a separate visit 1-3 weeks later, they completed a reward-guessing game, the 'Doors' task, during fMRI in a drug-free state. Participants who reported greater motivation (i.e., wanting) to consume more alcohol after a single moderate dose of alcohol also exhibited greater neural activation in the bilateral ventral caudate and the nucleus accumbens during reward receipt relative to loss. Striatal activation was not related to other subjective ratings including alcohol-induced sedation, stimulation, or pleasure (i.e., feeling, liking). Our study is the first to show that measures of alcohol reward are related to neural indices of monetary reward in humans. These results support growing evidence that individual differences in responses to drug and nondrug reward are linked and together form a risk profile for drug use or abuse, particularly in young adults.
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Affiliation(s)
- Milena Radoman
- Department of Psychiatry, University of Illinois at Chicago, 1601 W Taylor Street, Chicago, IL, 60612, USA.
| | - Natania A. Crane
- grid.185648.60000 0001 2175 0319Department of Psychiatry, University of Illinois at Chicago, 1601 W Taylor Street, Chicago, IL 60612 USA
| | - Stephanie M. Gorka
- grid.261331.40000 0001 2285 7943Department of Psychiatry and Behavioral Health, Ohio State University, 1670 Upham Drive, Columbus, OH 43205 USA
| | - Jessica Weafer
- grid.266539.d0000 0004 1936 8438Department of Psychology, University of Kentucky, 171 Funkhouser Drive, Lexington, KY 40506 USA
| | - Scott A. Langenecker
- grid.223827.e0000 0001 2193 0096Department of Psychiatry, University of Utah, 50N Medical Drive, Salt Lake City, UT 84132 USA
| | - Harriet de Wit
- grid.170205.10000 0004 1936 7822Department of Psychiatry and Behavioral Neuroscience, University of Chicago, 5841S Maryland Avenue, Chicago, IL 60637 USA
| | - K. Luan Phan
- grid.261331.40000 0001 2285 7943Department of Psychiatry and Behavioral Health, Ohio State University, 1670 Upham Drive, Columbus, OH 43205 USA
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36
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Morales I, Berridge KC. 'Liking' and 'wanting' in eating and food reward: Brain mechanisms and clinical implications. Physiol Behav 2020; 227:113152. [PMID: 32846152 PMCID: PMC7655589 DOI: 10.1016/j.physbeh.2020.113152] [Citation(s) in RCA: 130] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 08/17/2020] [Accepted: 08/21/2020] [Indexed: 01/02/2023]
Abstract
It is becoming clearer how neurobiological mechanisms generate 'liking' and 'wanting' components of food reward. Mesocorticolimbic mechanisms that enhance 'liking' include brain hedonic hotspots, which are specialized subregions that are uniquely able to causally amplify the hedonic impact of palatable tastes. Hedonic hotspots are found in nucleus accumbens medial shell, ventral pallidum, orbitofrontal cortex, insula cortex, and brainstem. In turn, a much larger mesocorticolimbic circuitry generates 'wanting' or incentive motivation to obtain and consume food rewards. Hedonic and motivational circuitry interact together and with hypothalamic homeostatic circuitry, allowing relevant physiological hunger and satiety states to modulate 'liking' and 'wanting' for food rewards. In some conditions such as drug addiction, 'wanting' is known to dramatically detach from 'liking' for the same reward, and this may also occur in over-eating disorders. Via incentive sensitization, 'wanting' selectively becomes higher, especially when triggered by reward cues when encountered in vulnerable states of stress, etc. Emerging evidence suggests that some cases of obesity and binge eating disorders may reflect an incentive-sensitization brain signature of cue hyper-reactivity, causing excessive 'wanting' to eat. Future findings on the neurobiological bases of 'liking' and 'wanting' can continue to improve understanding of both normal food reward and causes of clinical eating disorders.
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Affiliation(s)
- Ileana Morales
- Department of Psychology, University of Michigan, Ann Arbor, Michigan 48109-1043, United States.
| | - Kent C Berridge
- Department of Psychology, University of Michigan, Ann Arbor, Michigan 48109-1043, United States
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37
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A L, Sf M, Fh W, J M, J B. Love at first taste: Activation in reward-related brain regions during single-trial naturalistic appetitive conditioning in humans. Physiol Behav 2020; 224:113014. [PMID: 32553642 DOI: 10.1016/j.physbeh.2020.113014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 06/09/2020] [Accepted: 06/12/2020] [Indexed: 12/30/2022]
Abstract
Palatable food can trigger appetitive responses, such as salivation and approach tendencies. Though evolutionarily functional, these conditioned responses can encourage overeating and obesity when food is abundant. The current study examines the neural correlates of 'denovo' Pavlovian appetitive conditioning, pairing one class of unknown objects (conditioned stimuli, CS) with their sweet taste (unconditioned stimulus, US) during a single trial. To do so, 23 participants consumed unknown (marzipan) objects of one particular color (CS+) while only interacting with control stimuli of different color and shape (CS-). After this single-trial conditioning procedure, participants viewed and rated images of the marzipan figures and the control objects during functional magnetic resonance imaging (fMRI). Relative to the CS-, the CS+ elicited stronger activation in the dorsal striatum, a brain region associated with cue-reward coupling. Furthermore, conditioning effects in subjective 'craving', defined as increased palatability and desire to eat, were observed, and these were positively related to conditioning effects in the amygdala, a brain region associated with the need-dependent value of a reward. Thus, the study identified reward-related brain regions involved in single-trial appetitive learning, thereby providing a potential mechanism that contributes to the etiology of food craving. These findings might help to understand clinically relevant food cravings in individuals with eating or weight related concerns and might support the development of extinction based treatments.
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Affiliation(s)
- Lender A
- Department of Psychology, Centre for Cognitive Neuroscience, Paris-Lodron-University of Salzburg, Hellbrunner Str. 34, 5020 Salzburg, Austria.
| | - Miedl Sf
- Department of Psychology, Division of Clinical Psychology and Psychopathology, Paris-Lodron-University of Salzburg, Hellbrunner Str. 34, 15020 Salzburg, Austria
| | - Wilhelm Fh
- Department of Psychology, Division of Clinical Psychology and Psychopathology, Paris-Lodron-University of Salzburg, Hellbrunner Str. 34, 15020 Salzburg, Austria
| | - Miller J
- Department of Psychology, Centre for Cognitive Neuroscience, Paris-Lodron-University of Salzburg, Hellbrunner Str. 34, 5020 Salzburg, Austria
| | - Blechert J
- Department of Psychology, Centre for Cognitive Neuroscience, Paris-Lodron-University of Salzburg, Hellbrunner Str. 34, 5020 Salzburg, Austria
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38
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Gold MS, Baron D, Bowirrat A, Blum K. Neurological correlates of brain reward circuitry linked to opioid use disorder (OUD): Do homo sapiens acquire or have a reward deficiency syndrome? J Neurol Sci 2020; 418:117137. [PMID: 32957037 PMCID: PMC7490287 DOI: 10.1016/j.jns.2020.117137] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 08/19/2020] [Accepted: 09/08/2020] [Indexed: 12/14/2022]
Abstract
The extant literature confirms that an array of polymorphic genes related to- neurotransmitters and second messengers govern the net release of dopamine in the Nucleus Accumbens (NAc) in the mesolimbic region of the brain. They are linked predominantly to motivation, anti-stress, incentive salience (wanting), and wellbeing. Notably, in 2000 the Nobel Prize was awarded to Carlsson, Greengard, and Kandel for their work on the molecular and cellular function of dopaminergic activity at neurons. This historical psychopharmacological work involved neurotransmission of serotonin, endorphins, glutamate, and dopamine, and the seminal work of Blum, Gold, Volkow, Nestler, and others related to neurotransmitter function and related behaviors. Currently, Americans are facing their second and worst opioid epidemic, prescribed opioids, and easy access drive this epidemic of overdoses, and opioid use disorders (OUDs). Presently the clinical consensus is to treat OUD, as if it were an opioid deficiency syndrome, with long-term to life-long opioid substitution therapy. Opioid agonist administration is seen as necessary to replace missing opioids, treat OUD, and prevent overdoses, like insulin is used to treat diabetes. Treatment of OUD and addiction, in general, is similar to the endocrinopathy conceptualization in that it views opioid agonist MATs as an essential core to therapy. Is this approach logical? Other than as harm reduction, is using opioids to treat OUD therapeutic or harmful in the long term? This historical Trieste provides a molecular framework to understand the current underpinnings of endorphinergic/dopaminergic mechanisms related to opioid deficiency syndrome and generalized reward processing depletion. WC 249.
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Affiliation(s)
- Mark S Gold
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, United States.
| | - David Baron
- Graduate School of Biomedical Sciences, Western University Health Sciences, Pomona, CA, United States
| | - Abdalla Bowirrat
- Department of Neuroscience and Genetics, Interdisciplinary Center Herzliya, Israel
| | - Kenneth Blum
- Graduate School of Biomedical Sciences, Western University Health Sciences, Pomona, CA, United States
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Takeuchi H, Taki Y, Nouchi R, Yokoyama R, Nakagawa S, Iizuka K, Sakaki K, Araki T, Nozawa T, Ikeda S, Yokota S, Hanawa S, Magistro D, Kotozaki Y, Sasaki Y, Dos S Kawata KH, Kawashima R. The associations of BMI with mean diffusivity of basal ganglia among young adults with mild obesity and without obesity. Sci Rep 2020; 10:12566. [PMID: 32724120 PMCID: PMC7387490 DOI: 10.1038/s41598-020-69438-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 07/09/2020] [Indexed: 11/09/2022] Open
Abstract
Obesity causes a wide range of systemic diseases and is associated with mood and anxiety disorders. It is also associated with dopaminergic reward system function. However, the relationships between microstructural properties of the dopaminergic system and body mass index (BMI) have not been investigated. In this study, we investigated the associations of BMI with mean diffusivity (MD), diffusion tensor imaging measure in areas of the dopaminergic system (MDDS) in 435 healthy young adults with mild obesity and without obesity (BMI < 40). We detected the association between greater BMI and lower MD of the right globus pallidus and the right putamen. These results suggest that the property of the dopaminergic system is associated with BMI among young adults with mild obesity and without obesity.
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Affiliation(s)
- Hikarua Takeuchi
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer (IDAC), Tohoku University, 4-1 Seiryo-cho, Aoba-ku, Sendai, 980-8575, Japan.
| | - Yasuyuki Taki
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer (IDAC), Tohoku University, 4-1 Seiryo-cho, Aoba-ku, Sendai, 980-8575, Japan
- Division of Medical Neuroimaging Analysis, Department of Community Medical Supports, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Department of Radiology and Nuclear Medicine, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Rui Nouchi
- Creative Interdisciplinary Research Division, Frontier Research Institute for Interdisciplinary Science, Tohoku University, Sendai, Japan
- Human and Social Response Research Division, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
- Department of Advanced Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | | | - Seishu Nakagawa
- Department of Human Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
- Division of Psychiatry, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Kunio Iizuka
- Division of Psychiatry, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Kohei Sakaki
- Department of Advanced Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | | | - Takayuki Nozawa
- Collaborative Research Center for Happiness Co-Creation Society Through Intelligent Communications, Tokyo Institute of Technology, Tokyo, Japan
| | - Shigeyuki Ikeda
- Department of Ubiquitous Sensing, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Susumu Yokota
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer (IDAC), Tohoku University, 4-1 Seiryo-cho, Aoba-ku, Sendai, 980-8575, Japan
| | - Sugiko Hanawa
- Department of Human Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Daniele Magistro
- National Centre for Sport and Exercise Medicine (NCSEM), The NIHR Leicester-Loughborough Diet, Lifestyle and Physical Activity Biomedical Research Unit, School of Sport, Exercise, and Health Sciences, Loughborough University, Loughborough, England
| | - Yuka Kotozaki
- Division of Clinical Research, Medical-Industry Translational Research Center, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Yukako Sasaki
- Department of Advanced Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | | | - Ryuta Kawashima
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer (IDAC), Tohoku University, 4-1 Seiryo-cho, Aoba-ku, Sendai, 980-8575, Japan
- Creative Interdisciplinary Research Division, Frontier Research Institute for Interdisciplinary Science, Tohoku University, Sendai, Japan
- Department of Advanced Brain Science, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
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Increased anticipatory brain response to pleasant touch in women remitted from bulimia nervosa. Transl Psychiatry 2020; 10:236. [PMID: 32669557 PMCID: PMC7363900 DOI: 10.1038/s41398-020-00916-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 06/22/2020] [Accepted: 06/30/2020] [Indexed: 01/24/2023] Open
Abstract
Bulimia nervosa (BN) is characterized by affective instability and dysregulated behaviors (binge eating, fasting, self-induced vomiting) that disrupt bodily homeostasis. Mechanisms underlying dysregulation in BN are unclear, although altered reward responsivity, anticipatory processing of environmental cues, and interoception (detection and integration of body-state signals to regulate behavior) have been implicated in BN pathophysiology. We aimed to determine whether BN is associated with ineffectively predicting body state or integrating predicted experience with actual experience by examining neural response to anticipation and experience of affective touch, a pleasant interoceptive stimulus that acts on sensory and emotional systems to guide behavior. During fMRI, we administered soft strokes to the palm and forearm in women remitted from BN (RBN; N = 23) and control women (CW; N = 25). A Group (RBN/CW) × Condition (anticipation/touch) interaction was found in the right dorsal caudate; both CW and RBN had increased activation during touch compared with anticipation, with RBN demonstrating marginally greater anticipatory response than CW. For RBN, those individuals who showed greater anticipatory response in the dorsal caudate also reported higher levels of harm avoidance. RBN individuals relative to CW showed greater activation in left putamen and insula during the anticipation but not when experiencing an affective touch. This increase during anticipation rather than the actual experience of the affective touch is consistent with a top-down preparatory process which is associated with harm avoidance and is similar to what has been observed in anxious individuals. This aberrant signal integration could disrupt feedback processing, serving to maintain disordered behavior.
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Eisenstein SA, Black KJ, Samara A, Koller JM, Dunn JP, Hershey T, Klein S, Smith GI. Striatal Dopamine Responses to Feeding are Altered in People with Obesity. Obesity (Silver Spring) 2020; 28:765-771. [PMID: 32086877 PMCID: PMC7093218 DOI: 10.1002/oby.22753] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 01/03/2020] [Indexed: 01/05/2023]
Abstract
OBJECTIVE This study determined whether striatal dopamine (DA) release is affected by food ingestion and whether the DA response to high-calorie food images is greater in the fasted than in the fed state in people with obesity. METHODS Striatal DA release was evaluated in 10 people with obesity and prediabetes after consuming a meal to satiation and after fasting overnight as well as in response to viewing images of high-calorie compared with low-calorie foods after consuming a meal to satiation or fasting overnight by using positron emission tomography with [11 C]raclopride injection. RESULTS Striatal DA D2/D3 receptor availability was not different during fasted and fed conditions. Viewing images of high-calorie foods induced striatal DA release relative to viewing images of low-calorie foods (P < 0.05), but there was no difference in the magnitude of the response between fasting and fed conditions. CONCLUSIONS People with obesity and prediabetes do not increase striatal DA release after eating a meal to satiation compared with fasting overnight and fail to inhibit DA release in response to high-calorie food stimuli after eating a meal to satiation. These data suggest that impaired DA signaling contributes to greater energy intake during meals in this population.
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Affiliation(s)
- Sarah A. Eisenstein
- Departments of Psychiatry, Washington University School of Medicine, St. Louis, MO, 63110
- Departments of Radiology, Washington University School of Medicine, St. Louis, MO, 63110
| | - Kevin J. Black
- Departments of Psychiatry, Washington University School of Medicine, St. Louis, MO, 63110
- Departments of Radiology, Washington University School of Medicine, St. Louis, MO, 63110
- Departments of Neurology, Washington University School of Medicine, St. Louis, MO, 63110
- Departments of Neuroscience, Washington University School of Medicine, St. Louis, MO, 63110
| | - Amjad Samara
- Departments of Psychiatry, Washington University School of Medicine, St. Louis, MO, 63110
| | - Jonathan M. Koller
- Departments of Psychiatry, Washington University School of Medicine, St. Louis, MO, 63110
| | - Julia P. Dunn
- Departments of Center for Human Nutrition Washington University School of Medicine, St. Louis, MO, 63110
| | - Tamara Hershey
- Departments of Psychiatry, Washington University School of Medicine, St. Louis, MO, 63110
- Departments of Radiology, Washington University School of Medicine, St. Louis, MO, 63110
- Departments of Neurology, Washington University School of Medicine, St. Louis, MO, 63110
| | - Samuel Klein
- Departments of Center for Human Nutrition Washington University School of Medicine, St. Louis, MO, 63110
| | - Gordon I. Smith
- Departments of Center for Human Nutrition Washington University School of Medicine, St. Louis, MO, 63110
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Kleinridders A, Pothos EN. Impact of Brain Insulin Signaling on Dopamine Function, Food Intake, Reward, and Emotional Behavior. Curr Nutr Rep 2020; 8:83-91. [PMID: 31001792 DOI: 10.1007/s13668-019-0276-z] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
PURPOSE OF REVIEW Dietary obesity is primarily attributed to an imbalance between food intake and energy expenditure. Adherence to lifestyle interventions reducing weight is typically low. As a result, obesity becomes a chronic state with increased co-morbidities such as insulin resistance and diabetes. We review the effects of brain insulin action and dopaminergic signal transmission on food intake, reward, and mood as well as potential modulations of these systems to counteract the obesity epidemic. RECENT FINDINGS Central insulin and dopamine action are interlinked and impact on food intake, reward, and mood. Brain insulin resistance causes hyperphagia, anxiety, and depressive-like behavior and compromises the dopaminergic system. Such effects can induce reduced compliance to medical treatment. Insulin receptor sensitization and dopamine receptor agonists show attenuation of obesity and improvement of mental health in rodents and humans. Modulating brain insulin and dopamine signaling in obese patients can potentially improve therapeutic outcomes.
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Affiliation(s)
- André Kleinridders
- Central Regulation of Metabolism, German Institute of Human Nutrition Potsdam-Rehbruecke, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany. .,German Center for Diabetes Research (DZD), Ingolstaedter Land Str. 1, 85764, Neuherberg, Germany.
| | - Emmanuel N Pothos
- Program in Pharmacology and Experimental Therapeutics and Pharmacology and Drug Development, Sackler School of Graduate Biomedical Sciences and Department of Immunology, Tufts University School of Medicine, Boston, MA, 02111, USA.
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Maxwell AL, Gardiner E, Loxton NJ. Investigating the relationship between reward sensitivity, impulsivity, and food addiction: A systematic review. EUROPEAN EATING DISORDERS REVIEW 2020; 28:368-384. [PMID: 32142199 DOI: 10.1002/erv.2732] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 02/09/2020] [Accepted: 02/23/2020] [Indexed: 12/16/2022]
Abstract
OBJECTIVE The aim of the current research was to identify the extent to which reward sensitivity and impulsivity were related to food addiction. METHOD Forty-five studies, published from 2009 to June 2019, investigating reward sensitivity and/or impulsivity with food addiction as measured by the Yale Food Addiction Scale were reviewed. RESULTS Reward sensitivity, as measured by the Sensitivity to Reward (SR) scale, was positively associated with food addiction in two studies, but failed to yield consistent results in other studies when measured with the Behavioral Inhibition/Behavioral Activation Scales. Self-report impulsivity, as measured by the Barratt Impulsiveness Scale (BIS-11), was consistently associated with food addiction, with attentional impulsivity and motor impulsivity the most consistent subscales. Similarly, food addiction was also consistently associated with Negative Urgency, Positive Urgency, and Lack of Perseverance as measured by the UPPS-P Impulsive Behavior Scale. Food addiction was inconsistently associated with disinhibition, as measured by behavioral tasks, indicating food addiction appears more aligned with self-report measures of impulsivity. CONCLUSIONS Research in this field is dominated by university student, overweight and obese samples. Additional research is required to further tease out these relationships.
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Affiliation(s)
- Aimee L Maxwell
- School of Applied Psychology, Griffith University, Mt Gravatt Campus, Brisbane, Queensland, Australia
| | - Elliroma Gardiner
- School of Management, QUT Gardens Point, Brisbane, Queensland, Australia
| | - Natalie J Loxton
- School of Applied Psychology, Griffith University, Mt Gravatt Campus, Brisbane, Queensland, Australia.,Centre for Youth Substance Abuse Research, The University of Queensland, Brisbane, Queensland, Australia
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Pak K, Seo S, Kim K, Lee MJ, Shin MJ, Suh S, Im HJ, Park JJ, Kim SJ, Kim IJ. Striatal dopamine transporter changes after glucose loading in humans. Diabetes Obes Metab 2020; 22:116-122. [PMID: 31478329 DOI: 10.1111/dom.13872] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/20/2019] [Accepted: 08/28/2019] [Indexed: 12/31/2022]
Abstract
AIMS The dopamine transporter (DAT) actively translocates dopamine that is released from the presynaptic neurons across the membranes of nerve terminals into the extracellular space. We hypothesized that glucose loading-induced changes in striatal DAT levels could be associated with food intake in humans. MATERIALS AND METHODS An intravenous bolus injection of 18 F-FP-CIT was administered after infusion of glucose or placebo (normal saline), and emission data were acquired over 90 minutes in 33 healthy males. For a volume-of-interest-based analysis, an atlas involving sub-striatal regions of ventral striatum (VST), caudate nucleus and putamen was applied. DAT availability and binding potential (BPND ) were measured using a simplified reference tissue method with cerebellum as the reference. RESULTS The glucose-loaded BPND from the VST negatively correlated with body mass index (BMI), whereas the placebo-loaded BPND from the VST did not. After loading with glucose, there were substantial increases in BPND s: 18.3%, 71.7% and 34.0% on average in the VST, caudate nucleus and putamen, respectively. CONCLUSION Striatal DAT changes after glucose loading, and BMI is associated with glucose-loaded DAT availability, not with placebo-loaded DAT availability. DAT might have a role in the reward system of eating behavior.
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Affiliation(s)
- Kyoungjune Pak
- Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - Seongho Seo
- Department of Neuroscience, College of Medicine, Gachon University, Incheon, Republic of Korea
- Neuroscience Research Institute, Gachon University, Incheon, Republic of Korea
| | - Keunyoung Kim
- Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - Myung Jun Lee
- Department of Neurology, Pusan National University Hospital, Busan, Republic of Korea
| | - Myung Jun Shin
- Department of Rehabilitation Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Sunghwan Suh
- Department of Internal Medicine, Dong-A University College of Medicine, Busan, Republic of Korea
| | - Hyung-Jun Im
- Graduate School of Convergence Science and Technology, Seoul National University, Seoul, Republic of Korea
| | - Jung-Jun Park
- Division of Sport Science, Pusan National University, Busan, Republic of Korea
| | - Seong-Jang Kim
- Department of Nuclear Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - In Joo Kim
- Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
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45
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Striatal volume and functional connectivity correlate with weight gain in early-phase psychosis. Neuropsychopharmacology 2019; 44:1948-1954. [PMID: 31315130 PMCID: PMC6785100 DOI: 10.1038/s41386-019-0464-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 06/14/2019] [Accepted: 07/08/2019] [Indexed: 11/09/2022]
Abstract
Second-generation antipsychotic drugs (SGAs) are essential in the treatment of psychotic disorders, but are well-known for inducing substantial weight gain and obesity. Critically, weight gain may reduce life expectancy for up to 20-30 years in patients with psychotic disorders, and prognostic biomarkers are generally lacking. Even though other receptors are also implicated, the dorsal striatum, rich in dopamine D2 receptors, which are antagonized by antipsychotic medications, plays a key role in the human reward system and in appetite regulation, suggesting that altered dopamine activity in the striatal reward circuitry may be responsible for increased food craving and weight gain. Here, we measured striatal volume and striatal resting-state functional connectivity at baseline, and weight gain over the course of 12 weeks of antipsychotic treatment in 81 patients with early-phase psychosis. We also included a sample of 58 healthy controls. Weight measurements were completed at baseline, and then weekly for 4 weeks, and every 2 weeks until week 12. We used linear mixed models to compute individual weight gain trajectories. Striatal volume and whole-brain striatal connectivity were then calculated for each subject, and used to assess the relationship between striatal structure and function and individual weight gain in multiple regression models. Patients had similar baseline weights and body mass indices (BMI) compared with healthy controls. There was no evidence that prior drug exposure or duration of untreated psychosis correlated with baseline BMI. Higher left putamen volume and lower sensory motor connectivity correlated with the magnitude of weight gain in patients, and these effects multiplied when the structure-function interaction was considered in an additional exploratory analysis. In conclusion, these results provide evidence for a correlation of striatal structure and function with antipsychotic-induced weight gain. Lower striatal connectivity was associated with more weight gain, and this relationship was stronger for higher compared with lower left putamen volumes.
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Adams RC, Sedgmond J, Maizey L, Chambers CD, Lawrence NS. Food Addiction: Implications for the Diagnosis and Treatment of Overeating. Nutrients 2019; 11:E2086. [PMID: 31487791 PMCID: PMC6770567 DOI: 10.3390/nu11092086] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 08/14/2019] [Accepted: 08/21/2019] [Indexed: 12/14/2022] Open
Abstract
With the obesity epidemic being largely attributed to overeating, much research has been aimed at understanding the psychological causes of overeating and using this knowledge to develop targeted interventions. Here, we review this literature under a model of food addiction and present evidence according to the fifth edition of the Diagnostic and Statistical Manual (DSM-5) criteria for substance use disorders. We review several innovative treatments related to a food addiction model ranging from cognitive intervention tasks to neuromodulation techniques. We conclude that there is evidence to suggest that, for some individuals, food can induce addictive-type behaviours similar to those seen with other addictive substances. However, with several DSM-5 criteria having limited application to overeating, the term 'food addiction' is likely to apply only in a minority of cases. Nevertheless, research investigating the underlying psychological causes of overeating within the context of food addiction has led to some novel and potentially effective interventions. Understanding the similarities and differences between the addictive characteristics of food and illicit substances should prove fruitful in further developing these interventions.
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Affiliation(s)
- Rachel C Adams
- CUBRIC, School of Psychology, Cardiff University, Maindy Road, Cardiff CF24 4HQ, UK.
| | - Jemma Sedgmond
- CUBRIC, School of Psychology, Cardiff University, Maindy Road, Cardiff CF24 4HQ, UK
| | - Leah Maizey
- CUBRIC, School of Psychology, Cardiff University, Maindy Road, Cardiff CF24 4HQ, UK
| | | | - Natalia S Lawrence
- School of Psychology, College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4QG, UK
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Neuronal cAMP/PKA Signaling and Energy Homeostasis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1090:31-48. [PMID: 30390284 DOI: 10.1007/978-981-13-1286-1_3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The brain plays a key role in the regulation of body weight and glucose metabolism. Peripheral signals including hormones, metabolites, and neural afferent signals are received and processed by the brain which in turn elicits proper behavioral and metabolic responses for maintaining energy and glucose homeostasis. The cAMP/protein kinase A (PKA) pathway acts downstream G-protein-coupled receptors (GPCR) to mediate the physiological effects of many hormones and neurotransmitters. Activated PKA phosphorylates various proteins including ion channels, enzymes, and transcription factors and regulates their activity. Recent studies have shown that neuronal cAMP/PKA activity in multiple brain regions are involved in the regulation of feeding, energy expenditure, and glucose homeostasis. In this chapter I summarize recent genetic and pharmacological studies concerning the regulation of body weight and glucose homeostasis by cAMP/PKA signaling in the brain.
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McDermott KD, Williams SE, Espeland MA, Erickson K, Neiberg R, Wadden TA, Bryan RN, Desiderio L, Leckie RL, Falconbridge LH, Jakicic JM, Alonso-Alonso M, Wing RR. Impact of Intensive Lifestyle Intervention on Neural Food Cue Reactivity: Action for Health in Diabetes Brain Ancillary Study. Obesity (Silver Spring) 2019; 27:1076-1084. [PMID: 31112370 PMCID: PMC6591068 DOI: 10.1002/oby.22496] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 03/06/2019] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The Action for Health in Diabetes (Look AHEAD) research study was a randomized trial comparing the effects of an intensive lifestyle intervention (ILI) versus a diabetes support and education (DSE) control group in adults with type 2 diabetes and overweight or obesity. Functional magnetic resonance imaging was used to determine whether neural food cue reactivity differed for these groups 10 years after randomization. METHODS A total of 232 participants (ILI, n = 125, 72% female; DSE, n = 107, 64% female) were recruited at three of the Look AHEAD sites for functional magnetic resonance imaging. Neural response to high-calorie foods compared with nonfoods was assessed in DSE versus ILI. Exploratory correlations were conducted within ILI to identify regions in which activity was associated with degree of weight loss. RESULTS Voxel-wise whole-brain comparisons revealed greater reward-processing activity in left caudate for DSE compared with ILI and greater activity in attention- and visual-processing regions for ILI than DSE (P < 0.05, family-wise error corrected). Exploratory analyses revealed that greater weight loss among ILI participants from baseline was associated with brain activation indicative of increased cognitive control and attention and visual processing in response to high-calorie food cues (P < 0.001, uncorrected). CONCLUSIONS These findings suggest there may be legacy effects of participation in a behavioral weight loss intervention, with reduced reward-related activity and enhanced attention or visual processing in response to high-calorie foods.
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Affiliation(s)
- Kathryn Demos McDermott
- Department of Psychiatry and Human Behavior, Warren Alpert Medical School of Brown University, The Miriam Hospital/Weight Control and Diabetes Research Center, Providence, Rhode Island, USA
| | - Samantha E Williams
- Department of Psychiatry and Human Behavior, Warren Alpert Medical School of Brown University, The Miriam Hospital/Weight Control and Diabetes Research Center, Providence, Rhode Island, USA
- Department of Psychology, Saint Louis University, St. Louis, Missouri, USA
| | - Mark A Espeland
- Department of Biostatistical Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Kirk Erickson
- Department of Psychology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Rebecca Neiberg
- Department of Psychology, Saint Louis University, St. Louis, Missouri, USA
| | - Thomas A Wadden
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - R Nick Bryan
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Lisa Desiderio
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Regina L Leckie
- Department of Psychology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Psychology, Carnegie Mellon University, Pittsburgh, Pennsylvania, USA
| | - Lucy H Falconbridge
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - John M Jakicic
- Department of Health and Physical Activity, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Miguel Alonso-Alonso
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Rena R Wing
- Department of Psychiatry and Human Behavior, Warren Alpert Medical School of Brown University, The Miriam Hospital/Weight Control and Diabetes Research Center, Providence, Rhode Island, USA
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Wheatley SD, Whitaker MJG. Why do people overeat? Hunger, psychological eating and type 2 diabetes. PRACTICAL DIABETES 2019. [DOI: 10.1002/pdi.2232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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50
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Towards a Translational Approach to Food Addiction: Implications for Bulimia Nervosa. CURRENT ADDICTION REPORTS 2019. [DOI: 10.1007/s40429-019-00264-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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