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Merzah M, Natae S, Sándor J, Fiatal S. Single Nucleotide Variants (SNVs) of the Mesocorticolimbic System Associated with Cardiovascular Diseases and Type 2 Diabetes: A Systematic Review. Genes (Basel) 2024; 15:109. [PMID: 38254998 PMCID: PMC10815084 DOI: 10.3390/genes15010109] [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: 12/15/2023] [Revised: 01/11/2024] [Accepted: 01/15/2024] [Indexed: 01/24/2024] Open
Abstract
The mesocorticolimbic (MCL) system is crucial in developing risky health behaviors which lead to cardiovascular diseases (CVDs) and type 2 diabetes (T2D). Although there is some knowledge of the MCL system genes linked to CVDs and T2D, a comprehensive list is lacking, underscoring the significance of this review. This systematic review followed PRISMA guidelines and the Cochrane Handbook for Systematic Reviews of Interventions. The PubMed and Web of Science databases were searched intensively for articles related to the MCL system, single nucleotide variants (SNVs, formerly single nucleotide polymorphisms, SNPs), CVDs, T2D, and associated risk factors. Included studies had to involve a genotype with at least one MCL system gene (with an identified SNV) for all participants and the analysis of its link to CVDs, T2D, or associated risk factors. The quality assessment of the included studies was performed using the Q-Genie tool. The VEP and DAVID tools were used to annotate and interpret genetic variants and identify enriched pathways and gene ontology terms associated with the gene list. The review identified 77 articles that met the inclusion criteria. These articles provided information on 174 SNVs related to the MCL system that were linked to CVDs, T2D, or associated risk factors. The COMT gene was found to be significantly related to hypertension, dyslipidemia, insulin resistance, obesity, and drug abuse, with rs4680 being the most commonly reported variant. This systematic review found a strong association between the MCL system and the risk of developing CVDs and T2D, suggesting that identifying genetic variations related to this system could help with disease prevention and treatment strategies.
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Affiliation(s)
- Mohammed Merzah
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (M.M.)
- Doctoral School of Health Sciences, University of Debrecen, 4032 Debrecen, Hungary
| | - Shewaye Natae
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (M.M.)
- Doctoral School of Health Sciences, University of Debrecen, 4032 Debrecen, Hungary
| | - János Sándor
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (M.M.)
- ELKH-DE Public Health Research Group, Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Szilvia Fiatal
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (M.M.)
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Roberts FL, Cataldo LR, Fex M. Monoamines' role in islet cell function and type 2 diabetes risk. Trends Mol Med 2023; 29:1045-1058. [PMID: 37722934 DOI: 10.1016/j.molmed.2023.08.009] [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: 06/27/2023] [Revised: 08/22/2023] [Accepted: 08/25/2023] [Indexed: 09/20/2023]
Abstract
The two monoamines serotonin and melatonin have recently been highlighted as potent regulators of islet hormone secretion and overall glucose homeostasis in the body. In fact, dysregulated signaling of both amines are implicated in β-cell dysfunction and development of type 2 diabetes mellitus (T2DM). Serotonin is a key player in β-cell physiology and plays a role in expansion of β-cell mass. Melatonin regulates circadian rhythm and nutrient metabolism and reduces insulin release in human and rodent islets in vitro. Herein, we focus on the role of serotonin and melatonin in islet physiology and the pathophysiology of T2DM. This includes effects on hormone secretion, receptor expression, genetic variants influencing β-cell function, melatonin treatment, and compounds that alter serotonin availability and signaling.
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Affiliation(s)
- Fiona Louise Roberts
- Lund University Diabetes Centre, Department of Clinical Sciences, Unit for Molecular Metabolism, SE-21428 Malmö, Sweden
| | - Luis Rodrigo Cataldo
- Lund University Diabetes Centre, Department of Clinical Sciences, Unit for Molecular Metabolism, SE-21428 Malmö, Sweden; The Novo Nordisk Foundation Centre for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, DK-2200, Denmark
| | - Malin Fex
- Lund University Diabetes Centre, Department of Clinical Sciences, Unit for Molecular Metabolism, SE-21428 Malmö, Sweden.
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Mera-Charria A, Nieto-Lopez F, Francès MP, Arbex PM, Vila-Vecilla L, Russo V, Silva CCV, De Souza GT. Genetic variant panel allows predicting both obesity risk, and efficacy of procedures and diet in weight loss. Front Nutr 2023; 10:1274662. [PMID: 38035352 PMCID: PMC10687570 DOI: 10.3389/fnut.2023.1274662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 10/24/2023] [Indexed: 12/02/2023] Open
Abstract
Purpose Obesity is a multifactorial condition with a relevant genetic correlation. Recent advances in genomic research have identified several single nucleotide polymorphisms (SNPs) in genes such as FTO, MCM6, HLA, and MC4R, associated with obesity. This study aimed to evaluate the association of 102 SNPs with BMI and weight loss treatment response in a multi-ethnic population. Methods The study analyzed 9,372 patients for the correlation between SNPs and BMI (dataset A). The correlation between SNP and weight loss was accessed in 474 patients undergoing different treatments (dataset B). Patients in dataset B were further divided into 3 categories based on the type of intervention: dietary therapy, intragastric balloon procedures, or surgeries. SNP association analysis and multiple models of inheritance were performed. Results In dataset A, ten SNPs, including rs9939609 (FTO), rs4988235 (MCM6), and rs2395182 (HLA), were significantly associated with increased BMI. Additionally, other four SNPs, rs7903146 (TCF7L2), (rs6511720), rs5400 (SLC2A2), and rs7498665 (SH2B1), showed sex-specific correlation. For dataset B, SNPs rs2016520 (PPAR-Delta) and rs2419621 (ACSL5) demonstrated significant correlation with weight loss for all treatment types. In patients who adhered to dietary therapy, SNPs rs6544713 (ABCG8) and rs762551 (CYP1A2) were strongly correlated with weight loss. Patients undergoing surgical or endoscopic procedures exhibited differential correlations with several SNPs, including rs1801725 (CASR) and rs12970134 (MC4R), and weight loss. Conclusion This study provides valuable insights into the genetic factors influencing BMI and weight loss response to different treatments. The findings highlight the potential for personalized weight management approaches based on individual genetic profiles.
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Affiliation(s)
| | - Francisco Nieto-Lopez
- Dorsia Clinics, Madrid, Spain
- Catedra UCAM Dorsia, Catholic University San Antonio of Murcia, Guadalupe, Spain
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Wilson JB, Epstein M, Lopez B, Brown AK, Lutfy K, Friedman TC. The role of Neurochemicals, Stress Hormones and Immune System in the Positive Feedback Loops between Diabetes, Obesity and Depression. Front Endocrinol (Lausanne) 2023; 14:1224612. [PMID: 37664841 PMCID: PMC10470111 DOI: 10.3389/fendo.2023.1224612] [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: 05/17/2023] [Accepted: 07/25/2023] [Indexed: 09/05/2023] Open
Abstract
Type 2 diabetes mellitus (T2DM) and depression are significant public health and socioeconomic issues. They commonly co-occur, with T2DM occurring in 11.3% of the US population, while depression has a prevalence of about 9%, with higher rates among youths. Approximately 31% of patients with T2DM suffer from depressive symptoms, with 11.4% having major depressive disorders, which is twice as high as the prevalence of depression in patients without T2DM. Additionally, over 80% of people with T2DM are overweight or obese. This review describes how T2DM and depression can enhance one another, using the same molecular pathways, by synergistically altering the brain's structure and function and reducing the reward obtained from eating. In this article, we reviewed the evidence that eating, especially high-caloric foods, stimulates the limbic system, initiating Reward Deficiency Syndrome. Analogous to other addictive behaviors, neurochemical changes in those with depression and/or T2DM are thought to cause individuals to increase their food intake to obtain the same reward leading to binge eating, weight gain and obesity. Treating the symptoms of T2DM, such as lowering HbA1c, without addressing the underlying pathways has little chance of eliminating the disease. Targeting the immune system, stress circuit, melatonin, and other alterations may be more effective.
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Affiliation(s)
- Julian B. Wilson
- Department of Internal Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA, United States
| | - Ma’ayan Epstein
- Department of Internal Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA, United States
- Psychiatric Emergency Room, Olive View – University of California, Los Angeles (UCLA) Medical Center, Sylmar, CA, United States
| | - Briana Lopez
- Department of Internal Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA, United States
- Friends Research Institute, Cerritos, CA, United States
| | - Amira K. Brown
- Department of Internal Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA, United States
| | - Kabirullah Lutfy
- Department of Internal Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA, United States
- College of Pharmacy, Western University of Health Sciences, Pomona, CA, United States
| | - Theodore C. Friedman
- Department of Internal Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA, United States
- Friends Research Institute, Cerritos, CA, United States
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Arrue A, Olivas O, Erkoreka L, Alvarez FJ, Arnaiz A, Varela N, Bilbao A, Rodríguez JJ, Moreno-Calle MT, Gordo E, Marín E, Garcia-Cano J, Saez E, Gonzalez-Torres MÁ, Zumárraga M, Basterreche N. Multilocus Genetic Profile Reflecting Low Dopaminergic Signaling Is Directly Associated with Obesity and Cardiometabolic Disorders Due to Antipsychotic Treatment. Pharmaceutics 2023; 15:2134. [PMID: 37631349 PMCID: PMC10459305 DOI: 10.3390/pharmaceutics15082134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/08/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023] Open
Abstract
Treatment with second-generation antipsychotics (SGAs) can cause obesity and other cardiometabolic disorders linked to D2 receptor (DRD2) and to genotypes affecting dopaminergic (DA) activity, within reward circuits. We explored the relationship of cardiometabolic alterations with single genetic polymorphisms DRD2 rs1799732 (NG_008841.1:g.4750dup -> C), DRD2 rs6277 (NG_008841.1:g.67543C>T), COMT rs4680 (NG_011526.1:g.27009G>A), and VNTR in both DRD4 NC_000011.10 (637269-640706) and DAT1 NC_000005.10 (1392794-1445440), as well as with a multilocus genetic profile score (MLGP). A total of 285 psychiatric patients treated with SGAs for at least three months were selected. Cardiometabolic parameters were classified according to ATP-III and WHO criteria. Blood samples were taken for routinely biochemical assays and PCR genotyping. Obesity (BMI, waist (W)), high diastolic blood pressure (DBP), and hypertriglyceridemia (HTG) were present in those genetic variants related to low dopaminergic activity: InsIns genotype in rs1799732 (BMI: OR: 2.91 [1.42-5.94]), DRD4-VNTR-L allele (W: OR: 1.73 [1.04-2.87]) and 9R9R variant in DAT1-VNTR (W: OR: 2.73 [1.16-6.40]; high DBP: OR: 3.33 [1.54-7.31]; HTG: OR: 4.38 [1.85-10.36]). A low MLGP score indicated a higher risk of suffering cardiometabolic disorders (BMI: OR: 1.23 [1.05-1.45]; W: OR: 1.18 [1.03-1.34]; high DBP: OR: 1.22 [1.06-1.41]; HTG: OR: 1.20 [1.04-1.39]). The MLGP score was more sensitive for detecting the risk of suffering these alterations. Low dopaminergic system function would contribute to increased obesity, BDP, and HTG following long-term SGA treatment.
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Affiliation(s)
- Aurora Arrue
- Mental Health Network Group, BioCruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain; (O.O.); (L.E.)
- Neurochemical Research Unit, Bizkaia Mental Health Network, Osakidetza Basque Health Service, 48903 Barakaldo, Spain
| | - Olga Olivas
- Mental Health Network Group, BioCruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain; (O.O.); (L.E.)
- Bizkaia Mental Health Network, Zaldibar Hospital, Osakidetza Basque Health Service, 48250 Zaldibar, Spain
| | - Leire Erkoreka
- Mental Health Network Group, BioCruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain; (O.O.); (L.E.)
- Department of Psychiatry, Galdakao-Usánsolo University Hospital, Osakidetza Basque Health Service, 48960 Galdakao, Spain
- Department of Neurosciences, Faculty of Medicine and Dentistry, University of the Basque Country UPV/EHU, 48940 Leioa, Spain
| | - Francisco Jose Alvarez
- Research Unit, Cruces University Hospital, Osakidetza Basque Health Service, 48903 Barakaldo, Spain
| | - Ainara Arnaiz
- Mental Health Network Group, BioCruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain; (O.O.); (L.E.)
- Erandio Mental Health Center, Bizkaia Mental Health Network, Osakidetza Basque Health Service, 48950 Erandio, Spain
| | - Noemi Varela
- Mental Health Network Group, BioCruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain; (O.O.); (L.E.)
- Uribe Mental Health Center, Bizkaia Mental Health Network, Osakidetza Basque Health Service, 48990 Getxo, Spain
| | - Ainhoa Bilbao
- Animal Research Facility, BioCruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain
| | - Jose-Julio Rodríguez
- Department of Neurosciences, Faculty of Medicine and Dentistry, University of the Basque Country UPV/EHU, 48940 Leioa, Spain
- Functional Neuroanatomy, BioCruces Bizkaia Health Research Institute, Ikerbasque Basque Foundation for Science, 48903 Barakaldo, Spain
| | - María Teresa Moreno-Calle
- Mental Health Network Group, BioCruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain; (O.O.); (L.E.)
- Department of Psychiatry, Galdakao-Usánsolo University Hospital, Osakidetza Basque Health Service, 48960 Galdakao, Spain
| | - Estibaliz Gordo
- Bizkaia Mental Health Network, Zamudio Hospital, Osakidetza Basque Health Service, 48170 Zamudio, Spain
| | - Elena Marín
- Mental Health Network Group, BioCruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain; (O.O.); (L.E.)
- Bizkaia Mental Health Network, Bermeo Hospital, Osakidetza Basque Health Service, 48370 Bermeo, Spain
| | - Javier Garcia-Cano
- Alternatives to Hospitalization in Bilbao, Bizkaia Mental Health Network, Osakidetza Basque Health Service, 48903 Bilbao, Spain
| | - Estela Saez
- Mental Health Network Group, BioCruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain; (O.O.); (L.E.)
- Department of Psychiatry, Galdakao-Usánsolo University Hospital, Osakidetza Basque Health Service, 48960 Galdakao, Spain
| | - Miguel Ángel Gonzalez-Torres
- Department of Neurosciences, Faculty of Medicine and Dentistry, University of the Basque Country UPV/EHU, 48940 Leioa, Spain
- Integrative Research Group in Mental Health, BioCruces Bizkaia Health Research Institute, 48013 Bilbao, Spain
- Department of Psychiatry, Basurto University Hospital, Osakidetza Basque Health Service, 48013 Bilbao, Spain
| | - Mercedes Zumárraga
- Mental Health Network Group, BioCruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain; (O.O.); (L.E.)
- Neurochemical Research Unit, Bizkaia Mental Health Network, Osakidetza Basque Health Service, 48903 Barakaldo, Spain
| | - Nieves Basterreche
- Functional Neuroanatomy, BioCruces Bizkaia Health Research Institute, Ikerbasque Basque Foundation for Science, 48903 Barakaldo, Spain
- Integrative Research Group in Mental Health, BioCruces Bizkaia Health Research Institute, 48013 Bilbao, Spain
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Sullivan M, Fernandez-Aranda F, Camacho-Barcia L, Harkin A, Macrì S, Mora-Maltas B, Jiménez-Murcia S, O'Leary A, Ottomana AM, Presta M, Slattery D, Scholtz S, Glennon JC. Insulin and Disorders of Behavioural Flexibility. Neurosci Biobehav Rev 2023; 150:105169. [PMID: 37059405 DOI: 10.1016/j.neubiorev.2023.105169] [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: 12/30/2022] [Revised: 04/03/2023] [Accepted: 04/10/2023] [Indexed: 04/16/2023]
Abstract
Behavioural inflexibility is a symptom of neuropsychiatric and neurodegenerative disorders such as Obsessive-Compulsive Disorder, Autism Spectrum Disorder and Alzheimer's Disease, encompassing the maintenance of a behaviour even when no longer appropriate. Recent evidence suggests that insulin signalling has roles apart from its regulation of peripheral metabolism and mediates behaviourally-relevant central nervous system (CNS) functions including behavioural flexibility. Indeed, insulin resistance is reported to generate anxious, perseverative phenotypes in animal models, with the Type 2 diabetes medication metformin proving to be beneficial for disorders including Alzheimer's Disease. Structural and functional neuroimaging studies of Type 2 diabetes patients have highlighted aberrant connectivity in regions governing salience detection, attention, inhibition and memory. As currently available therapeutic strategies feature high rates of resistance, there is an urgent need to better understand the complex aetiology of behaviour and develop improved therapeutics. In this review, we explore the circuitry underlying behavioural flexibility, changes in Type 2 diabetes, the role of insulin in CNS outcomes and mechanisms of insulin involvement across disorders of behavioural inflexibility.
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Affiliation(s)
- Mairéad Sullivan
- Conway Institute of Biomedical and Biomolecular Research, School of Medicine, University College Dublin, Dublin, Ireland.
| | - Fernando Fernandez-Aranda
- Department of Psychiatry, University Hospital of Bellvitge, Barcelona, Spain; Psychoneurobiology of Eating and Addictive Behaviors Group, Neurosciences Program, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain; CIBER Fisiopatología Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Barcelona, Spain; Department of Clinical Sciences, School of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
| | - Lucía Camacho-Barcia
- Department of Psychiatry, University Hospital of Bellvitge, Barcelona, Spain; Psychoneurobiology of Eating and Addictive Behaviors Group, Neurosciences Program, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain; CIBER Fisiopatología Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Barcelona, Spain
| | - Andrew Harkin
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Ireland
| | - Simone Macrì
- Centre for Behavioural Sciences and Mental Health, Istituto Superiore di Sanità, 00161 Rome, Italy
| | - Bernat Mora-Maltas
- Department of Psychiatry, University Hospital of Bellvitge, Barcelona, Spain; Psychoneurobiology of Eating and Addictive Behaviors Group, Neurosciences Program, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain
| | - Susana Jiménez-Murcia
- Department of Psychiatry, University Hospital of Bellvitge, Barcelona, Spain; Psychoneurobiology of Eating and Addictive Behaviors Group, Neurosciences Program, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain; CIBER Fisiopatología Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Barcelona, Spain; Department of Clinical Sciences, School of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
| | - Aet O'Leary
- University Hospital Frankfurt, Frankfurt, Germany
| | - Angela Maria Ottomana
- Centre for Behavioural Sciences and Mental Health, Istituto Superiore di Sanità, 00161 Rome, Italy; Neuroscience Unit, Department of Medicine, University of Parma, 43100 Parma, Italy
| | - Martina Presta
- Centre for Behavioural Sciences and Mental Health, Istituto Superiore di Sanità, 00161 Rome, Italy; Department of Physiology and Pharmacology, Sapienza University of Rome, 00185 Rome, Italy
| | | | | | - Jeffrey C Glennon
- Conway Institute of Biomedical and Biomolecular Research, School of Medicine, University College Dublin, Dublin, Ireland
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Khoruddin NA, Lim WF, Teh LK, Noorizhab MNF, Mohd Yusof FZ, Salleh MZ. Toward precision nutrition: A cross‐sectional study on the genetic risks of nutrients deficiencies and eating behaviors among the Orang Asli and Malays. PRECISION MEDICAL SCIENCES 2022. [DOI: 10.1002/prm2.12081] [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] Open
Affiliation(s)
- Nurul Ain Khoruddin
- Integrative Pharmacogenomics Institute (iPROMISE) Universiti Teknologi MARA (UiTM) Selangor Bandar Puncak Alam Malaysia
- Faculty of Applied Sciences Universiti Teknologi MARA (UiTM) Selangor Shah Alam Malaysia
| | - Wai Feng Lim
- Integrative Pharmacogenomics Institute (iPROMISE) Universiti Teknologi MARA (UiTM) Selangor Bandar Puncak Alam Malaysia
| | - Lay Kek Teh
- Integrative Pharmacogenomics Institute (iPROMISE) Universiti Teknologi MARA (UiTM) Selangor Bandar Puncak Alam Malaysia
- Faculty of Pharmacy Universiti Teknologi MARA (UiTM) Selangor Bandar Puncak Alam Malaysia
| | - Mohd Nur Fakhruzzaman Noorizhab
- Integrative Pharmacogenomics Institute (iPROMISE) Universiti Teknologi MARA (UiTM) Selangor Bandar Puncak Alam Malaysia
- Faculty of Pharmacy Universiti Teknologi MARA (UiTM) Selangor Bandar Puncak Alam Malaysia
| | - Farida Zuraina Mohd Yusof
- Integrative Pharmacogenomics Institute (iPROMISE) Universiti Teknologi MARA (UiTM) Selangor Bandar Puncak Alam Malaysia
- Faculty of Applied Sciences Universiti Teknologi MARA (UiTM) Selangor Shah Alam Malaysia
| | - Mohd Zaki Salleh
- Integrative Pharmacogenomics Institute (iPROMISE) Universiti Teknologi MARA (UiTM) Selangor Bandar Puncak Alam Malaysia
- Faculty of Pharmacy Universiti Teknologi MARA (UiTM) Selangor Bandar Puncak Alam Malaysia
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Battaglia DM, Sanchez-Pino MD, Nichols CD, Foster TP. Herpes Simplex Virus-1 Induced Serotonin-Associated Metabolic Pathways Correlate With Severity of Virus- and Inflammation-Associated Ocular Disease. Front Microbiol 2022; 13:859866. [PMID: 35391733 PMCID: PMC8982329 DOI: 10.3389/fmicb.2022.859866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 02/22/2022] [Indexed: 11/13/2022] Open
Abstract
Herpes simplex virus-associated diseases are a complex interaction between cytolytic viral replication and inflammation. Within the normally avascular and immunoprivileged cornea, HSV ocular infection can result in vision-threatening immune-mediated herpetic keratitis, the leading infectious cause of corneal blindness in the industrialized world. Viral replicative processes are entirely dependent upon numerous cellular biosynthetic and metabolic pathways. Consistent with this premise, HSV infection was shown to profoundly alter gene expression associated with cellular amino acid biosynthetic pathways, including key tryptophan metabolism genes. The essential amino acid tryptophan is crucial for pathogen replication, the generation of host immune responses, and the synthesis of neurotransmitters, such as serotonin. Intriguingly, Tryptophan hydroxylase 2 (TPH2), the neuronal specific rate-limiting enzyme for serotonin synthesis, was the most significantly upregulated gene by HSV in an amino acid metabolism PCR array. Despite the well-defined effects of serotonin in the nervous system, the association of peripheral serotonin in disease-promoting inflammation has only recently begun to be elucidated. Likewise, the impact of serotonin on viral replication and ocular disease is also largely unknown. We therefore examined the effect of HSV-induced serotonin-associated synthesis and transport pathways on HSV-1 replication, as well as the correlation between HSV-induced ocular serotonin levels and disease severity. HSV infection induced expression of the critical serotonin synthesis enzymes TPH-1, TPH-2, and DOPA decarboxylase (DDC), as well as the serotonin transporter, SERT. Concordantly, HSV-infected cells upregulated serotonin synthesis and its intracellular uptake. Increased serotonin synthesis and uptake was shown to influence HSV replication. Exogenous addition of serotonin increased HSV-1 yield, while both TPH-1/2 and SERT pharmacological inhibition reduced viral yield. Congruent with these in vitro findings, rabbits intraocularly infected with HSV-1 exhibited significantly higher aqueous humor serotonin concentrations that positively and strongly correlated with viral load and ocular disease severity. Collectively, our findings indicate that HSV-1 promotes serotonin synthesis and cellular uptake to facilitate viral replication and consequently, serotonin's proinflammatory effects may enhance the development of ocular disease.
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Affiliation(s)
- Diana Marie Battaglia
- Department of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Maria D. Sanchez-Pino
- Department of Interdisciplinary Oncology, Louisiana State University Health Sciences Center, New Orleans, LA, United States
- Department of Genetics, Louisiana State University Health Sciences Center, New Orleans, LA, United States
- The Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Charles D. Nichols
- Department of Pharmacology and Experimental Therapeutics, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Timothy P. Foster
- Department of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center, New Orleans, LA, United States
- The Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA, United States
- Department of Ophthalmology, Louisiana State University Health Sciences Center, New Orleans, LA, United States
- The Louisiana Vaccine Center, New Orleans, LA, United States
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9
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Cataloging the potential SNPs (single nucleotide polymorphisms) associated with quantitative traits, viz. BMI (body mass index), IQ (intelligence quotient) and BP (blood pressure): an updated review. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2022. [DOI: 10.1186/s43042-022-00266-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Single nucleotide polymorphism (SNP) variants are abundant, persistent and widely distributed across the genome and are frequently linked to the development of genetic diseases. Identifying SNPs that underpin complex diseases can aid scientists in the discovery of disease-related genes by allowing for early detection, effective medication and eventually disease prevention.
Main body
Various SNP or polymorphism-based studies were used to categorize different SNPs potentially related to three quantitative traits: body mass index (BMI), intelligence quotient (IQ) and blood pressure, and then uncovered common SNPs for these three traits. We employed SNPedia, RefSNP Report, GWAS Catalog, Gene Cards (Data Bases), PubMed and Google Scholar search engines to find relevant material on SNPs associated with three quantitative traits. As a result, we detected three common SNPs for all three quantitative traits in global populations: SNP rs6265 of the BDNF gene on chromosome 11p14.1, SNP rs131070325 of the SL39A8 gene on chromosome 4p24 and SNP rs4680 of the COMT gene on chromosome 22q11.21.
Conclusion
In our review, we focused on the prevalent SNPs and gene expression activities that influence these three quantitative traits. These SNPs have been used to detect and map complex, common illnesses in communities for homogeneity testing and pharmacogenetic studies. High blood pressure, diabetes and heart disease, as well as BMI, schizophrenia and IQ, can all be predicted using common SNPs. Finally, the results of our work can be used to find common SNPs and genes that regulate these three quantitative features across the genome.
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Mavanji V, Pomonis B, Kotz CM. Orexin, serotonin, and energy balance. WIREs Mech Dis 2022; 14:e1536. [PMID: 35023323 PMCID: PMC9286346 DOI: 10.1002/wsbm.1536] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 07/27/2021] [Accepted: 08/23/2021] [Indexed: 12/02/2022]
Abstract
The lateral hypothalamus is critical for the control of ingestive behavior and spontaneous physical activity (SPA), as lesion or stimulation of this region alters these behaviors. Evidence points to lateral hypothalamic orexin neurons as modulators of feeding and SPA. These neurons affect a broad range of systems, and project to multiple brain regions such as the dorsal raphe nucleus, which contains serotoninergic neurons (DRN) important to energy homeostasis. Physical activity is comprised of intentional exercise and SPA. These are opposite ends of a continuum of physical activity intensity and structure. Non‐goal‐oriented behaviors, such as fidgeting, standing, and ambulating, constitute SPA in humans, and reflect a propensity for activity separate from intentional activity, such as high‐intensity voluntary exercise. In animals, SPA is activity not influenced by rewards such as food or a running wheel. Spontaneous physical activity in humans and animals burns calories and could theoretically be manipulated pharmacologically to expend calories and protect against obesity. The DRN neurons receive orexin inputs, and project heavily onto cortical and subcortical areas involved in movement, feeding and energy expenditure (EE). This review discusses the function of hypothalamic orexin in energy‐homeostasis, the interaction with DRN serotonin neurons, and the role of this orexin‐serotonin axis in regulating food intake, SPA, and EE. In addition, we discuss possible brain areas involved in orexin–serotonin cross‐talk; the role of serotonin receptors, transporters and uptake‐inhibitors in the pathogenesis and treatment of obesity; animal models of obesity with impaired serotonin‐function; single‐nucleotide polymorphisms in the serotonin system and obesity; and future directions in the orexin–serotonin field. This article is categorized under:Metabolic Diseases > Molecular and Cellular Physiology
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Affiliation(s)
- Vijayakumar Mavanji
- Research Service, Minneapolis VA Health Care System, Minneapolis, Minnesota, USA
| | - Brianna Pomonis
- Research Service, Minneapolis VA Health Care System, Minneapolis, Minnesota, USA
| | - Catherine M Kotz
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, Minnesota, USA.,Geriatric Research Education and Clinical Center, Minneapolis VA Health Care System, Minneapolis, Minnesota, USA
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11
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Novais PFS, Crisp AH, Leandro-Merhi VA, Cintra RMG, Rasera I, Oliveira MRMD. Genetic polymorphisms are not associated with energy intake one year after Roux-Y gastric bypass (RYGB) in women. J Hum Nutr Diet 2021; 35:739-747. [PMID: 34935211 DOI: 10.1111/jhn.12984] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 12/09/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND This study aimed to investigate the influence of food intake on body weight loss and the association of gene polymorphisms, 1 year after Roux-en-Y gastric bypass (RYGB) surgery. METHODS In total, ninety-five obese women (age ranged 20-50 years) in a Brazilian cohort underwent RYGB surgery and completed the study. Anthropometric measurements and food intake were assessed before and 1 year after surgery. Twelve gene polymorphisms (GHRL rs26802; GHSR rs572169; LEP rs7799039; LEPR rs1137101; 5-HT2C rs3813929; UCP2 rs659366; UCP2 rs660339; UCP3 rs1800849; SH2B1 rs7498665; TAS1R2 rs35874116; TAS1R2 rs9701796; and FTO rs9939609) were determined using a real-time PCR reaction and a TaqMan assay. The subjects were divided into quartiles regarding to percentage of excess weight loss (%EWL). The effect of genetic variants on energy and macronutrient intake was evaluated by simple logistic regression, followed by multiple logistic regression. RESULTS It was found that subjects in the first and second quartile showed a higher initial body mass index (BMI). Energy and macronutrient intake before and 1 year after RYGB surgery did not differ between the %EWL quartiles. None of gene polymorphisms investigated showed an association with the estimated energy intake 1 year after surgery. CONCLUSION In conclusion, the estimate energy and food intake did not predict a greater body weight loss 1 year after RYGB surgery. In addition, the 12 gene polymorphism investigated did not affect the energy intake among female patients. This article is protected by copyright. All rights reserved.
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Affiliation(s)
| | | | | | | | - Irineu Rasera
- Clínica Bariátrica de Piracicaba, Piracicaba, SP, Brazil
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12
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Pignalosa FC, Desiderio A, Mirra P, Nigro C, Perruolo G, Ulianich L, Formisano P, Beguinot F, Miele C, Napoli R, Fiory F. Diabetes and Cognitive Impairment: A Role for Glucotoxicity and Dopaminergic Dysfunction. Int J Mol Sci 2021; 22:ijms222212366. [PMID: 34830246 PMCID: PMC8619146 DOI: 10.3390/ijms222212366] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/09/2021] [Accepted: 11/13/2021] [Indexed: 12/13/2022] Open
Abstract
Diabetes mellitus (DM) is a chronic metabolic disorder characterized by hyperglycemia, responsible for the onset of several long-term complications. Recent evidence suggests that cognitive dysfunction represents an emerging complication of DM, but the underlying molecular mechanisms are still obscure. Dopamine (DA), a neurotransmitter essentially known for its relevance in the regulation of behavior and movement, modulates cognitive function, too. Interestingly, alterations of the dopaminergic system have been observed in DM. This review aims to offer a comprehensive overview of the most relevant experimental results assessing DA’s role in cognitive function, highlighting the presence of dopaminergic dysfunction in DM and supporting a role for glucotoxicity in DM-associated dopaminergic dysfunction and cognitive impairment. Several studies confirm a role for DA in cognition both in animal models and in humans. Similarly, significant alterations of the dopaminergic system have been observed in animal models of experimental diabetes and in diabetic patients, too. Evidence is accumulating that advanced glycation end products (AGEs) and their precursor methylglyoxal (MGO) are associated with cognitive impairment and alterations of the dopaminergic system. Further research is needed to clarify the molecular mechanisms linking DM-associated dopaminergic dysfunction and cognitive impairment and to assess the deleterious impact of glucotoxicity.
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Affiliation(s)
- Francesca Chiara Pignalosa
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Antonella Desiderio
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Paola Mirra
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Cecilia Nigro
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Giuseppe Perruolo
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Luca Ulianich
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Pietro Formisano
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Francesco Beguinot
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Claudia Miele
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
- Correspondence: ; Tel.: +39-081-746-3248
| | - Raffaele Napoli
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
| | - Francesca Fiory
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
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13
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Yu B, Battaglia DM, Foster TP, Nichols CD. Serotonin 5-HT 2A receptor activity mediates adipocyte differentiation through control of adipogenic gene expression. Sci Rep 2021; 11:19714. [PMID: 34611182 PMCID: PMC8492876 DOI: 10.1038/s41598-021-98970-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 08/30/2021] [Indexed: 12/20/2022] Open
Abstract
Serotonin 5-HT2 receptors are expressed in many tissues and play important roles in biological processes. Although the 5-HT2A receptor is primarily known for its role in central nervous system, it is also expressed in peripheral tissues. We have found that 5-HT2A receptor antagonists inhibit human subcutaneous primary adipocyte differentiation. We also show that siRNA knockdown of the 5-HT2A receptor blocks differentiation. Using gene expression analysis in combination with receptor antagonists we found that activity of 5-HT2A receptors is necessary very early in the differentiation process to mediate expression of adipogenic genes, including peroxisome proliferator-activated receptor gamma (ppar-γ), adipocyte protein 2 (aP2), adiponectin, and serine/threonine-protein kinase 1 (sgk1). We show here for the first time that 5-HT2A receptor activity is necessary for differentiation of human primary subcutaneous preadipocytes to adipocytes, and that 5-HT2A receptor activity mediates key genes related to adipogenesis during this process. Importantly, this work contributes to a greater understanding of the adipocyte differentiation process, as well as to the role of 5-HT2A receptors in peripheral tissues, and may be relevant to the development of novel therapeutic strategies targeting this receptor for the treatment of obesity related diseases.
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Affiliation(s)
- Bangning Yu
- Department of Pharmacology and Experimental Therapeutics, Louisiana State University Health Science Center, 1901 Perdido Street, New Orleans, LA, 70112, USA
| | - Diana M Battaglia
- Department of Microbiology, Immunology, and Parasitology, Louisiana State University Health Science Center, 1901 Perdido Street, New Orleans, LA, 70112, USA
| | - Timothy P Foster
- Department of Microbiology, Immunology, and Parasitology, Louisiana State University Health Science Center, 1901 Perdido Street, New Orleans, LA, 70112, USA
| | - Charles D Nichols
- Department of Pharmacology and Experimental Therapeutics, Louisiana State University Health Science Center, 1901 Perdido Street, New Orleans, LA, 70112, USA.
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14
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Aguayo L, Li W, Joyce BT, Leng J, Zheng Y, Shiau S, Liu H, Wang L, Gao R, Baccarelli A, Hu G, Hou L. Risks of Macrosomia Associated with Catechol- O-Methyltransferase Genotypes and Genetic-Epigenetic Interactions among Children with and without Gestational Diabetes Exposure. Child Obes 2021; 17:365-370. [PMID: 33826421 PMCID: PMC8236387 DOI: 10.1089/chi.2020.0327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Background: Gestational diabetes mellitus (GDM) is a major macrosomia risk factor. Variations in the catechol-O-methyltransferase (COMT; rs4680) genotypes are associated with heightened susceptibility to environmental exposures and nutritional conditions. However, macrosomia risks associated with COMT genetics, epigenetics, and the interaction between genetic and epigenetics among children with and without exposure to GDM are unknown. Methods: Data from women/children pairs (n = 1087) who participated in the Tianjin Gestational Diabetes Birth Cohort were used to examine the odds of being born with macrosomia associated with COMT-genotypes, 55 CpG sites located on the COMT gene, and genetic and epigenetic interactions. Odds of macrosomia associated with COMT genetic, epigenetic, genetic and epigenetic interactions, and moderations with GDM were tested using adjusted logistic regression models. Results: Overall, 16.1% (n = 175) of children were born with macrosomia. Models showed that children with at least one copy of the minor allele (A) had higher odds of macrosomia (odds ratio, 1.82; 95% confidence interval 1.25-2.64) compared with children with the GG-genotype. After false discovery rate corrections, none of the 55 CpG sites located on the COMT gene was associated with odds of macrosomia. The genetic and epigenetic associations were not modified by exposure to GDM. Conclusion: Findings suggest carriers of the COMT GG-genotype had lower odds of macrosomia, and this association was not modified by epigenetics or exposure to GDM.
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Affiliation(s)
- Liliana Aguayo
- Department of Preventive Medicine, Feinberg School of Medicine; Northwestern University, Chicago, IL, USA.,Mary Ann and J. Milburn Smith Child Health Research, Outreach, and Advocacy Center, Stanley Manne Children's Research Institute, Ann and Robert H. Lurie Children's Hospital, Chicago, IL, USA.,Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Weiqin Li
- Tianjin Women's and Children's Health Center, Tianjin, China
| | - Brian T. Joyce
- Department of Preventive Medicine, Center for Global Oncology, Institute for Global Health, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Junhong Leng
- Tianjin Women's and Children's Health Center, Tianjin, China
| | - Yinan Zheng
- Department of Preventive Medicine, Center for Global Oncology, Institute for Global Health, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Stephanie Shiau
- Department of Biostatistics and Epidemiology, Rutgers School of Public Health, Piscataway, NJ, USA
| | - Huikun Liu
- Tianjin Women's and Children's Health Center, Tianjin, China
| | - Leishen Wang
- Tianjin Women's and Children's Health Center, Tianjin, China
| | - Ru Gao
- Chronic Disease Epidemiology Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, USA
| | - Andrea Baccarelli
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Gang Hu
- Chronic Disease Epidemiology Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, USA.,Address correspondence to: Gang Hu, MD, PhD, Chronic Disease Epidemiology Laboratory, Pennington Biomedical Research Center, 6400 Perkins Road, Baton Rouge, LA 70808, USA
| | - Lifang Hou
- Department of Preventive Medicine, Center for Global Oncology, Institute for Global Health, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
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15
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Park S, Kim Y, Lee J, Lee JY, Kim H, Lee S, Oh CM. A Systems Biology Approach to Investigating the Interaction between Serotonin Synthesis by Tryptophan Hydroxylase and the Metabolic Homeostasis. Int J Mol Sci 2021; 22:ijms22052452. [PMID: 33671067 PMCID: PMC7957782 DOI: 10.3390/ijms22052452] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 02/11/2021] [Accepted: 02/24/2021] [Indexed: 12/19/2022] Open
Abstract
Obesity has become a global public health and economic problem. Obesity is a major risk factor for a number of complications, such as type 2 diabetes, cardiovascular disease, fatty liver disease, and cancer. Serotonin (5-hydroxytryptamine [5-HT]) is a biogenic monoamine that plays various roles in metabolic homeostasis. It is well known that central 5-HT regulates appetite and mood. Several 5-HT receptor agonists and selective serotonin receptor uptake inhibitors (SSRIs) have shown beneficial effects on appetite and mood control in clinics. Although several genetic polymorphisms related to 5-HT synthesis and its receptors are strongly associated with obesity, there is little evidence of the role of peripheral 5-HT in human metabolism. In this study, we performed a systemic analysis of transcriptome data from the Genotype-Tissue Expression (GTEX) database. We investigated the expression of 5-HT and tryptophan hydroxylase (TPH), the rate-limiting enzyme of 5-HT biosynthesis, in the human brain and peripheral tissues. We also performed differential gene expression analysis and predicted changes in metabolites by comparing gene expressions of tissues with high TPH expression to the gene expressions of tissues with low TPH expression. Our analyses provide strong evidence that serotonin plays an important role in the regulation of metabolic homeostasis in humans.
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Affiliation(s)
- Suhyeon Park
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Korea; (S.P.); (Y.K.); (J.L); (J.Y.L.)
| | - Yumin Kim
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Korea; (S.P.); (Y.K.); (J.L); (J.Y.L.)
| | - Jibeom Lee
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Korea; (S.P.); (Y.K.); (J.L); (J.Y.L.)
| | - Jeong Yun Lee
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Korea; (S.P.); (Y.K.); (J.L); (J.Y.L.)
| | - Hail Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea;
| | - Sunjae Lee
- Department of School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju 61005, Korea
- Correspondence: (S.L.); (C.-M.O.); Tel.: +82-10-7304-1213 (S.L.)
| | - Chang-Myung Oh
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Korea; (S.P.); (Y.K.); (J.L); (J.Y.L.)
- Correspondence: (S.L.); (C.-M.O.); Tel.: +82-10-7304-1213 (S.L.)
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16
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Abstract
The present review deals with the recent progress made in the field of the electrochemical detection of serotonin by means of electrochemical sensors based on various nanomaterials incorporated in the sensitive element. Due to the unique chemical and physical properties of these nanomaterials, it was possible to develop sensitive electrochemical sensors with excellent analytical performances, useful in the practice. The main electrochemical sensors used in serotonin detection are based on carbon electrodes modified with carbon nanotubes and various materials, such as benzofuran, polyalizarin red-S, poly(L-arginine), Nafion/Ni(OH)2, or graphene oxide, incorporating silver-silver selenite nanoparticles, as well as screen-printed electrodes modified with zinc oxide or aluminium oxide. Also, the review describes the nanocomposite sensors based on conductive polymers, tin oxide-tin sulphide, silver/polypyrole/copper oxide or a hybrid structure of cerium oxide-gold oxide nanofibers together with ruthenium oxide nanowires. The presentation focused on describing the sensitive materials, characterizing the sensors, the detection techniques, electroanalytical properties, validation and use of sensors in lab practice.
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17
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Fassini PG, Das SK, Suen VMM, Magerowski G, Marchini JS, da Silva Junior WA, Changyu S, Alonso-Alonso M. Appetite effects of prefrontal stimulation depend on COMT Val158Met polymorphism: A randomized clinical trial. Appetite 2019; 140:142-150. [PMID: 31095973 DOI: 10.1016/j.appet.2019.05.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 04/22/2019] [Accepted: 05/12/2019] [Indexed: 12/13/2022]
Abstract
The regulation of appetite is supported by dopamine-modulated brain circuits. Recent studies have shown that transcranial direct current stimulation (tDCS) aimed at increasing the excitability of the dorsolateral prefrontal cortex can reduce appetite, but the underlying mechanisms remain unknown, and response variability is large. The aim of this study was to determine whether individual differences in Catechol-O-methyl transferase (COMT) Val158Met polymorphism can influence tDCS effects on appetite. Thirty-eight adult women with obesity, classified as carriers or non-carriers of the Met allele, underwent a randomized, double-blind, sham-controlled tDCS intervention involving three phases: Phase I, target engagement (immediate effects of tDCS on working memory performance), Phase II, tDCS only (10 sessions, two weeks), and Phase III, tDCS + hypocaloric diet: (6 sessions, two weeks, 30% energy intake reduction, inpatient). Data were analyzed using linear mixed-effects models and mixed ANCOVA. Appetite was evaluated using visual analogue scales. We found that Met-carriers receiving active tDCS were the only participants who experienced a significant reduction of appetite over time. Conversely, Met non-carriers maintained high levels of appetite during the intervention; this effect was driven by a delayed paradoxical rise in appetite after stimulation. Working memory task performance at phase I correlated with subsequent appetite change in a COMT-dependent manner: speed improvements during the task predicted appetite increase in Met carriers and appetite reduction in Met non-carriers. Our findings suggest that genotype differences impacting dopamine levels influence prefrontal tDCS effects on appetite. This source of variability should be considered in the design of future studies.
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Affiliation(s)
- Priscila Giacomo Fassini
- Laboratory of Bariatric and Nutritional Neuroscience, Center for the Study of Nutrition Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, United States
| | - Sai Krupa Das
- Energy Metabolism Laboratory, Jean Mayer USDA Human Nutrition Center on Aging, Tufts University, 711 Washington Street, Boston, MA 02111-1524, United States
| | - Vivian Marques Miguel Suen
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes, 3900. Monte Alegre, CEP: 14049-900, Ribeirão Preto, São Paulo, Brazil
| | - Greta Magerowski
- Laboratory of Bariatric and Nutritional Neuroscience, Center for the Study of Nutrition Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, United States
| | - Júlio Sérgio Marchini
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes, 3900. Monte Alegre, CEP: 14049-900, Ribeirão Preto, São Paulo, Brazil
| | - Wilson Araújo da Silva Junior
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes, 3900. Monte Alegre, CEP: 14049-900, Ribeirão Preto, São Paulo, Brazil
| | - Shen Changyu
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, United States
| | - Miguel Alonso-Alonso
- Laboratory of Bariatric and Nutritional Neuroscience, Center for the Study of Nutrition Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, United States.
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18
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Yabut JM, Crane JD, Green AE, Keating DJ, Khan WI, Steinberg GR. Emerging Roles for Serotonin in Regulating Metabolism: New Implications for an Ancient Molecule. Endocr Rev 2019; 40:1092-1107. [PMID: 30901029 PMCID: PMC6624793 DOI: 10.1210/er.2018-00283] [Citation(s) in RCA: 202] [Impact Index Per Article: 40.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Accepted: 03/18/2019] [Indexed: 12/12/2022]
Abstract
Serotonin is a phylogenetically ancient biogenic amine that has played an integral role in maintaining energy homeostasis for billions of years. In mammals, serotonin produced within the central nervous system regulates behavior, suppresses appetite, and promotes energy expenditure by increasing sympathetic drive to brown adipose tissue. In addition to these central circuits, emerging evidence also suggests an important role for peripheral serotonin as a factor that enhances nutrient absorption and storage. Specifically, glucose and fatty acids stimulate the release of serotonin from the duodenum, promoting gut peristalsis and nutrient absorption. Serotonin also enters the bloodstream and interacts with multiple organs, priming the body for energy storage by promoting insulin secretion and de novo lipogenesis in the liver and white adipose tissue, while reducing lipolysis and the metabolic activity of brown and beige adipose tissue. Collectively, peripheral serotonin acts as an endocrine factor to promote the efficient storage of energy by upregulating lipid anabolism. Pharmacological inhibition of serotonin synthesis or signaling in key metabolic tissues are potential drug targets for obesity, type 2 diabetes, and nonalcoholic fatty liver disease (NAFLD).
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Affiliation(s)
- Julian M Yabut
- Division of Endocrinology and Metabolism, Department of Medicine, McMaster University, Hamilton, Ontario, Canada.,Centre for Metabolism, Obesity and Diabetes Research, McMaster University, Hamilton, Ontario, Canada
| | - Justin D Crane
- Department of Biology, Northeastern University, Boston, Massachusetts
| | - Alexander E Green
- Division of Endocrinology and Metabolism, Department of Medicine, McMaster University, Hamilton, Ontario, Canada.,Centre for Metabolism, Obesity and Diabetes Research, McMaster University, Hamilton, Ontario, Canada
| | - Damien J Keating
- College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia
| | - Waliul I Khan
- Centre for Metabolism, Obesity and Diabetes Research, McMaster University, Hamilton, Ontario, Canada.,Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, Ontario, Canada.,Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Gregory R Steinberg
- Division of Endocrinology and Metabolism, Department of Medicine, McMaster University, Hamilton, Ontario, Canada.,Centre for Metabolism, Obesity and Diabetes Research, McMaster University, Hamilton, Ontario, Canada.,Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
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19
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Metabolic Nano-Machines: Extracellular Vesicles Containing Active Enzymes and Their Contribution to Liver Diseases. CURRENT PATHOBIOLOGY REPORTS 2019. [DOI: 10.1007/s40139-019-00197-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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20
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Kwon YJ, Hong KW, Park BJ, Jung DH. Serotonin receptor 3B polymorphisms are associated with type 2 diabetes: The Korean Genome and Epidemiology Study. Diabetes Res Clin Pract 2019; 153:76-85. [PMID: 31152805 DOI: 10.1016/j.diabres.2019.05.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/13/2019] [Accepted: 05/23/2019] [Indexed: 02/07/2023]
Abstract
AIMS Serotonin, or 5-hydroxytryptamine (5-HT), and serotonin receptor (HTR) subtypes contribute to controlling energy homeostasis. We investigated the association of polymorphisms of serotonin related genes with type 2 diabetes in Korean adults using a community-based prospective cohort study. METHODS A total of 8840 participants (4205 Ansung, 4635 Ansan) from the Korean Genome and Epidemiology Study (KoGES)-Ansan and Ansung were included. The mean follow-up duration was 7.6 years, and the Ansan and Ansung cohorts were treated as independent replicates. Individuals with existing and new-onset type 2 diabetes were identified at baseline and follow-up evaluations, respectively. Logistic regression analysis was used to evaluate the association of 3402 single nucleotide polymorphisms (SNPs) in serotonin related genes with type 2 diabetes after adjusting for baseline age, sex, body mass index, drinking status, and smoking status. RESULTS The baseline case-control comparison revealed significant association of 26 SNPs in HTR3B and HTR2A with type 2 diabetes. Interestingly, HTR3B SNP rs1176744, which is involved in behavioral disorders, was associated with type 2 diabetes (p-value = 0.0002). Furthermore, HTR3B polymorphisms that significantly associated with type 2 diabetes were located in the 3' downstream region. The new-onset type 2 diabetes case-control study revealed significant association of 3 additional SNPs of the HTR4. CONCLUSIONS We found that rs1176744 in HTR3B was associated with type 2 diabetes. Additionally, our study suggests that polymorphisms in the downstream region of HTR3B may contribute to the development of type 2 diabetes.
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Affiliation(s)
- Yu-Jin Kwon
- Department of Family Medicine, Yonsei University College of Medicine, Yong-in Severance Hospital, Gyeonggi-do, Republic of Korea; Department of Medicine, Graduate School of Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Kyung-Won Hong
- TheragenEtex BioInstitue Co., Ltd., Suwon, Gyeonggi-do, Republic of Korea
| | - Byung Jin Park
- Department of Family Medicine, Yonsei University College of Medicine, Yong-in Severance Hospital, Gyeonggi-do, Republic of Korea
| | - Dong-Hyuk Jung
- Department of Family Medicine, Yonsei University College of Medicine, Yong-in Severance Hospital, Gyeonggi-do, Republic of Korea.
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21
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Hall KT, Loscalzo J, Kaptchuk TJ. Systems pharmacogenomics - gene, disease, drug and placebo interactions: a case study in COMT. Pharmacogenomics 2019; 20:529-551. [PMID: 31124409 PMCID: PMC6563236 DOI: 10.2217/pgs-2019-0001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 03/11/2019] [Indexed: 02/07/2023] Open
Abstract
Disease, drugs and the placebos used as comparators are inextricably linked in the methodology of the double-blind, randomized controlled trial. Nonetheless, pharmacogenomics, the study of how individuals respond to drugs based on genetic substrate, focuses primarily on the link between genes and drugs, while the link between genes and disease is often overlooked and the link between genes and placebos is largely ignored. Herein, we use the example of the enzyme catechol-O-methyltransferase to examine the hypothesis that genes can function as pharmacogenomic hubs across system-wide regulatory processes that, if perturbed in andomized controlled trials, can have primary and combinatorial effects on drug and placebo responses.
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Affiliation(s)
- Kathryn T Hall
- Department of Medicine, Brigham & Women’s Hospital, Boston, MA 02115, USA
- Division of Preventive Medicine, Brigham & Women’s Hospital, Boston, MA 02215, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Joseph Loscalzo
- Department of Medicine, Brigham & Women’s Hospital, Boston, MA 02115, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Ted J Kaptchuk
- Harvard Medical School, Boston, MA 02115, USA
- Program in Placebo Studies, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
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22
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Caldú X, Ottino-González J, Sánchez-Garre C, Hernan I, Tor E, Sender-Palacios MJ, Dreher JC, Garolera M, Jurado MÁ. Effect of the catechol-O-methyltransferase Val 158 Met polymorphism on theory of mind in obesity. EUROPEAN EATING DISORDERS REVIEW 2019; 27:401-409. [PMID: 30761671 DOI: 10.1002/erv.2665] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 11/08/2018] [Accepted: 12/27/2018] [Indexed: 12/29/2022]
Abstract
Obesity is often accompanied with psychosocial adjustment problems, such as difficulties in social interactions and social withdrawal. A key aspect of social cognition is theory of mind, which allows inferring mental states, feelings, motivations, and beliefs of others and to use this information to predict their future behaviour. Theory of mind is highly dependent on prefrontal dopaminergic neurotransmission, which is regulated by catechol-O-methyltransferase (COMT) activity. We aimed at determining whether theory of mind is altered in obesity and if this ability is modulated by COMT. Fifty patients with obesity and 47 normal-weight individuals underwent the Reading the Mind in the Eyes Test, the Wisconsin Card Sorting Test, and the Vocabulary subscale of the Wechsler Adult Intelligence Scale. The genotype for the COMT Val 158 Met functional polymorphism was determined for all subjects. Patients with obesity obtained significantly lower scores in the negative items of the Reading the Mind in the Eyes Test than normal-weight subjects. Further, an interaction effect was observed between group and COMT genotype. Specifically, the presence of the Met allele was associated to a better identification of negative mental states only in patients with obesity. Our results indicate that obesity is accompanied with difficulties in theory of mind and that this ability is influenced by the COMT genotype.
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Affiliation(s)
- Xavier Caldú
- Departament de Psicologia Clínica i Psicobiologia, Universitat de Barcelona, Barcelona, Spain.,Institut de Neurociències, Universitat de Barcelona, Barcelona, Spain.,Institut de Recerca Hospital Sant Joan de Déu, Esplugues de Llobregat, Spain
| | - Jonatan Ottino-González
- Departament de Psicologia Clínica i Psicobiologia, Universitat de Barcelona, Barcelona, Spain.,Institut de Neurociències, Universitat de Barcelona, Barcelona, Spain.,Institut de Recerca Hospital Sant Joan de Déu, Esplugues de Llobregat, Spain
| | - Consuelo Sánchez-Garre
- Unitat d'Endocrinologia Pediàtrica, Departament de Pediatria, Hospital de Terrassa, Consorci Sanitari de Terrassa, Terrassa, Spain
| | - Imma Hernan
- Unitat de Genètica Molecular, Hospital de Terrassa, Consorci Sanitari de Terrassa, Terrassa, Spain
| | - Encarnació Tor
- Centre d'atenció primària Terrassa Nord, Consorci Sanitari de Terrassa, Terrassa, Spain
| | | | - Jean-Claude Dreher
- Neuroeconomics, Reward and Decision Making Team, Cognitive Neuroscience Centre, CNRS UMR 5229, Bron, France.,Université Claude Bernard Lyon 1, Villeurbanne, France
| | - Maite Garolera
- Unitat de Neuropsicologia, Hospital de Terrassa, Consorci Sanitari de Terrassa, Terrassa, Spain
| | - María Ángeles Jurado
- Departament de Psicologia Clínica i Psicobiologia, Universitat de Barcelona, Barcelona, Spain.,Institut de Neurociències, Universitat de Barcelona, Barcelona, Spain.,Institut de Recerca Hospital Sant Joan de Déu, Esplugues de Llobregat, Spain
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23
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Raue S, Wedekind D, Wiltfang J, Schmidt U. The Role of Proopiomelanocortin and α-Melanocyte-Stimulating Hormone in the Metabolic Syndrome in Psychiatric Disorders: A Narrative Mini-Review. Front Psychiatry 2019; 10:834. [PMID: 31798479 PMCID: PMC6867997 DOI: 10.3389/fpsyt.2019.00834] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 10/21/2019] [Indexed: 01/10/2023] Open
Abstract
The metabolic syndrome (MetS) comprises abdominal obesity, preclinical or full diabetes type 2, arterial hypertension, and dyslipidemia and affects a significant proportion of the general population with a remarkably higher prevalence in patients suffering from psychiatric disorders. However, studies exploring the pathogenetic link between MetS and psychiatric diseases are rare. Here, we aim to narrow this gap in knowledge by providing a narrative review on this topic that focuses on two psychiatric diseases, namely on schizophrenia and posttraumatic stress disorder (PTSD) since we assume them to be associated with two different main causalities of MetS: in schizophrenia, MetS evidently develops or aggravates in response to antipsychotic drug treatment while it assumingly develops in response to stress-induced endocrine and/or epigenetic alterations in PTSD. First, we compared the prevalences of MetS and associated pathologies (which we took from the latest meta-analyses) among different psychiatric disorders and were surprised that the prevalences of arterial hypertension and hyperglycemia in PTSD almost doubles those of the other psychiatric disorders. Next, we performed a literature search on the neurobiology of MetS and found numerous articles describing a role for proopiomelanocortin (POMC) in MetS. Thus, we concentrated further analysis on POMC and one of its downstream effector hormones, α-melanocyte-stimulating hormone (α-MSH). We found some evidence for a role of POMC in both PTSD and schizophrenia, in particular in antipsychotic-induced MetS, as well as for α-MSH in schizophrenia, but, surprisingly, no study on α-MSH in PTSD. Taken together, our synopsis reveals, first, a potential interaction between the POMC system and stress in the assumingly at least partially shared pathogenesis of psychiatric disorders and MetS, second, that modulation of the POMC system, in particular of the melanocortin 3 and 4 receptors, might be a promising target for the treatment of MetS and, third, that the DNA methylation status of POMC might speculatively be a promising biomarker for MetS in general and, possibly, in particular in the context of stress-related psychiatric conditions such as PTSD. To best of our knowledge, this is the first review on the role of the POMC system in MetS in psychiatric disorders.
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Affiliation(s)
- Stefan Raue
- Psychotrauma Treatment Unit & RG Stress Modulation of Neurodegeneration, Department of Psychiatry and Psychotherapy, University Medical Center Göttingen (UMG), Göttingen, Germany
| | - Dirk Wedekind
- Department of Psychiatry and Psychotherapy, Georg August University, University Medical Center Göttingen (UMG), Göttingen, Germany
| | - Jens Wiltfang
- Department of Psychiatry and Psychotherapy, Georg August University, University Medical Center Göttingen (UMG), Göttingen, Germany.,German Center for Neurodegenerative Diseases (DZNE), Göttingen, Germany.,Medical Sciences Department, iBiMED, University of Aveiro, Aveiro, Portugal
| | - Ulrike Schmidt
- Psychotrauma Treatment Unit & RG Stress Modulation of Neurodegeneration, Department of Psychiatry and Psychotherapy, University Medical Center Göttingen (UMG), Göttingen, Germany.,Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNs), Maastricht University Medical Centre, Maastricht, Netherlands
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24
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Nour El Huda AR, Norsidah KZ, Nabil Fikri MR, Hanisah MN, Kartini A, Norlelawati AT. DNA methylation of membrane-bound catechol-O-methyltransferase in Malaysian schizophrenia patients. Psychiatry Clin Neurosci 2018; 72:266-279. [PMID: 29160620 DOI: 10.1111/pcn.12622] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 11/02/2017] [Accepted: 11/14/2017] [Indexed: 12/11/2022]
Abstract
AIM This study examined catechol-O-methyltransferase (COMT) DNA methylation in the peripheral blood of schizophrenia patients and also in healthy controls to investigate its potential use as a peripheral biomarker of schizophrenia and its relations with the clinical variables of schizophrenia patients. METHODS We examined the DNA methylation levels of COMT using genomic DNA from the peripheral blood of schizophrenia patients (n = 138) and healthy control participants (n = 132); all were Malaysian Malays. The extracted DNA was bisulfite converted, and the percentage methylation ratio value was calculated based on the results following a MethyLight protocol analysis. RESULTS The percentage methylation ratio of COMT was lower in schizophrenia than it was in the healthy controls (P < 0.001) and was different between the body mass index (P = 0.003) and antipsychotic (P = 0.004) groups. The COMT DNA methylation rate was lower in patients receiving atypical antipsychotics (P = 0.004) and risperidone (P = 0.049) as compared to typical antipsychotics. The Excitement and Depressed subdomains of the Positive and Negative Syndrome Scale were inversely related (P < 0.001) and therefore predictors (Excitement: b = -11.396, t = -4.760, P < 0.001; Depressed: b = -7.789, t = -3.487, P = 0.001) of COMT DNA methylation. CONCLUSION Our results suggested that the methylation level was affected by the severity of the clinical symptoms of schizophrenia and might also be influenced by pharmacological treatment. The epigenetic alteration of COMT in the peripheral blood could be a potential peripheral biomarker of schizophrenia.
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Affiliation(s)
- Abd Rahim Nour El Huda
- Department of Basic Medical Sciences, Kulliyyah of Medicine, International Islamic University Malaysia, Kuantan, Malaysia
| | - Ku Zaifah Norsidah
- Department of Basic Medical Sciences, Kulliyyah of Medicine, International Islamic University Malaysia, Kuantan, Malaysia
| | - Mohd Rahim Nabil Fikri
- Department of Basic Medical Sciences, Kulliyyah of Medicine, International Islamic University Malaysia, Kuantan, Malaysia
| | - Mohd Noor Hanisah
- Department of Psychiatry, Kulliyyah of Medicine, International Islamic University Malaysia, Kuantan, Malaysia
| | - Abdullah Kartini
- Department of Psychiatry, Kulliyyah of Medicine, International Islamic University Malaysia, Kuantan, Malaysia
| | - A Talib Norlelawati
- Department of Pathology and Laboratory Medicine, Kulliyyah of Medicine, International Islamic University Malaysia, Kuantan, Malaysia
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25
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Bozek T, Blazekovic A, Perkovic MN, Jercic KG, Sustar A, Smircic-Duvnjak L, Outeiro TF, Pivac N, Borovecki F. The influence of dopamine-beta-hydroxylase and catechol O-methyltransferase gene polymorphism on the efficacy of insulin detemir therapy in patients with type 2 diabetes mellitus. Diabetol Metab Syndr 2017; 9:97. [PMID: 29225702 PMCID: PMC5716004 DOI: 10.1186/s13098-017-0295-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 11/22/2017] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Type II diabetes is an important health problem with a complex connection to obesity, leading to a broad range of cardiovascular complications. Insulin therapy often results in weight gain and does not always ensure adequate glycemic control. However, previous studies reported that insulin detemir is an efficient long-acting insulin with a weight sparing effect. The aim of this study was to determine the association of catechol O-methyltransferase (COMT) Val108/158Met and dopamine-beta-hydroxylase (DBH) 1021C/T polymorphisms with the effectiveness of insulin detemir in achieving glucose control and body weight control. Participants and methods: This 52-week observational study included 185 patients with inadequate glycemic control treated with premix insulin analogues, which were replaced with insulin aspart and insulin detemir, and 156 healthy controls. After DNA isolation from blood samples, genotyping of DBH-1021C/T polymorphism (rs1611115) and COMT Val108/158Met polymorphism (rs4680) was performed. RESULTS Our results confirmed that insulin detemir did not lead to weight gain. The most significant finding was that A carriers (the combined AG and AA genotype) of the COMT Val108/158Met achieved significantly better hemoglobin A1c (HbA1c) values compared to patients carrying GG genotype. No association between DBH-1021C/T genotypes and weight and/or glucose control was detected in diabetes patients or in healthy control subjects. CONCLUSIONS This study showed that the presence of one or two A allele of the COMT Val108/158Met was associated with improved glycemic response, and with a better response to insulin detemir therapy in patients with type II diabetes, separating them as best candidates for detemir therapy.
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Affiliation(s)
- Tomislav Bozek
- Vuk Vrhovac University Clinic, Merkur University Hospital, Zagreb, Croatia
| | - Antonela Blazekovic
- Department for Functional Genomics, Center for Translational and Clinical Research, University of Zagreb School of Medicine, University Hospital Center Zagreb, Šalata 2, Zagreb, Croatia
| | | | - Kristina Gotovac Jercic
- Department for Functional Genomics, Center for Translational and Clinical Research, University of Zagreb School of Medicine, University Hospital Center Zagreb, Šalata 2, Zagreb, Croatia
| | - Aleksandra Sustar
- Department of Cardiology, University Hospital Center Rijeka, Rijeka, Croatia
| | | | - Tiago F. Outeiro
- Department of Experimental Neurodegeneration, Center for Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), Center for Biostructural Imaging of Neurodegeneration, University Medical Center Göttingen, Göttingen, Germany
- Max Planck Institute for Experimental Medicine, Göttingen, Germany
| | - Nela Pivac
- Division of Molecular Medicine, Rudjer Boskovic Institute, Zagreb, Croatia
| | - Fran Borovecki
- Department for Functional Genomics, Center for Translational and Clinical Research, University of Zagreb School of Medicine, University Hospital Center Zagreb, Šalata 2, Zagreb, Croatia
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26
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Schnor NPP, Verlengia R, Novais PFS, Crisp AH, Leite CVDS, Rasera-Junior I, Oliveira MRMD. Association of 5-HT2C (rs3813929) and UCP3 (rs1800849) gene polymorphisms with type 2 diabetes in obese women candidates for bariatric surgery. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2017; 61:326-331. [PMID: 28977211 PMCID: PMC10118923 DOI: 10.1590/2359-3997000000260] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Accepted: 11/25/2016] [Indexed: 11/21/2022]
Abstract
OBJECTIVE Obesity can cause systemic arterial hypertension (SAH) and type 2 diabetes mellitus (DM2) factor that is also influenced by genetic variability. The present study aims to investigate the association between gene polymorphisms related with obesity on the prevalence of SAH and DM2 in the preoperative period and 1 year after Roux-en-Y gastric bypass surgery. SUBJECTS AND METHODS In total, 351 obese women in a Brazilian cohort completed the study. The clinical diagnosis of SAH and DM2 was monitored from medical records. Twelve gene polymorphisms (rs26802; rs572169; rs7799039; rs1137101; rs3813929; rs659366; rs660339; rs1800849; rs7498665; rs35874116; rs9701796; and rs9939609) were determined using real-time polymerase chain reaction and TaqMan assay. RESULTS In the preoperative period, prevalence of SAH and DM2 was 57% and 22%, respectively. One year postoperatively, 86.8% subjects had remission of DM2 and 99.5% had control of SAH. Subjects with T allele from the serotonin receptor gene (5-HT2C, rs3813929) had five times greater chance of DM2, and the CC genotype from uncoupling protein 3 gene (UCP3, rs1800849) had three times greater chance in the preoperative period. CONCLUSION These findings indicate that polymorphisms rs3813929 and rs1800849 from 5-HT2C and UCP3 genes were related to DM2 prevalence among the Brazilian obese women candidates for bariatric surgery.
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Affiliation(s)
- Noa Pereira Prada Schnor
- Universidade Estadual Paulista Júlio de Mesquita Filho (Unesp), Programa de Pós-Graduação em Alimentos e Nutrição, Araraquara, SP, Brasil
| | - Rozangela Verlengia
- Universidade Metodista de Piracicaba (Unimep), Programa de Pós-Graduação em Ciências do Movimento Humano, Piracicaba, SP, Brasil
| | - Patrícia Fátima Sousa Novais
- Universidade Estadual Paulista Júlio de Mesquita Filho (Unesp), Programa de Pós-Graduação em Alimentos e Nutrição, Araraquara, SP, Brasil
| | - Alex Harley Crisp
- Universidade Estadual Paulista Júlio de Mesquita Filho (Unesp), Programa de Pós-Graduação em Alimentos e Nutrição, Araraquara, SP, Brasil
| | | | | | - Maria Rita Marques de Oliveira
- Universidade Estadual Paulista Júlio de Mesquita Filho (Unesp), Programa de Pós-Graduação em Alimentos e Nutrição, Araraquara, SP, Brasil
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27
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Zhao H, Wilkinson A, Shen J, Wu X, Chow WH. Genetic polymorphisms in genes related to risk-taking behaviours predicting body mass index trajectory among Mexican American adolescents. Pediatr Obes 2017; 12:356-362. [PMID: 27228958 PMCID: PMC5319917 DOI: 10.1111/ijpo.12151] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 04/08/2016] [Accepted: 04/13/2016] [Indexed: 12/19/2022]
Abstract
OBJECTIVES Obesity is associated with multiple health problems and often originates in childhood. The purpose is to investigate the associations of genetic polymorphisms in genes related to risk-taking behaviours with body mass index (BMI) trajectory over adolescence among Mexican Americans. METHODS This study included 1229 Mexican American adolescents who participated in a large population-based cohort study in Houston, Texas. BMI data were obtained at baseline and two follow-ups. The median follow-up time was 59 months. Participants were genotyped for 672 functional and tagging variants in genes involved in the dopamine, serotonin and cannabinoid pathways. RESULTS After adjusting for multiple comparisons, three genetic variants, namely, rs933271 and rs4646310 in COMT gene, and rs9567733 in HTR2A gene were significantly associated with BMI growth over adolescence. Using those three variants, we created an allelic score, and the allelic score was associated with BMI growth over adolescence (P < 0.001). With the increase number of variant allele, the rate of BMI growth over adolescence was slower. Finally, we identified another two genetic variants, namely, rs17069005 in HTR2A gene and rs3776511 in SLC6A3A gene were associated with obesity at last follow-up. CONCLUSIONS The results suggest that genetic variants in selected genes involved in dopamine and serotonin pathways have noticeable effects on BMI over adolescence.
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Affiliation(s)
- Hua Zhao
- Departments of Epidemiology, the University of Texas MD Anderson Cancer Center, Houston, Texas,Request for reprints: Hua Zhao, Department of Epidemiology, the University of Texas MD Anderson Cancer Center, 1155 Pressler Street, Houston, TX 77030 Phone: 713-745-7597; Fax: 713-794-1964;
| | - Anna Wilkinson
- Michael and Susan Dell Center for Healthy Living, University of Texas School of Public Health, Austin Regional Campus, Austin, Texas
| | - Jie Shen
- Departments of Epidemiology, the University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Xifeng Wu
- Departments of Epidemiology, the University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Wong-Ho Chow
- Departments of Epidemiology, the University of Texas MD Anderson Cancer Center, Houston, Texas
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Das UN. Is There a Role for Bioactive Lipids in the Pathobiology of Diabetes Mellitus? Front Endocrinol (Lausanne) 2017; 8:182. [PMID: 28824543 PMCID: PMC5539435 DOI: 10.3389/fendo.2017.00182] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 07/10/2017] [Indexed: 12/12/2022] Open
Abstract
Inflammation, decreased levels of circulating endothelial nitric oxide (eNO) and brain-derived neurotrophic factor (BDNF), altered activity of hypothalamic neurotransmitters (including serotonin and vagal tone) and gut hormones, increased concentrations of free radicals, and imbalance in the levels of bioactive lipids and their pro- and anti-inflammatory metabolites have been suggested to play a role in diabetes mellitus (DM). Type 1 diabetes mellitus (type 1 DM) is due to autoimmune destruction of pancreatic β cells because of enhanced production of IL-6 and tumor necrosis factor-α (TNF-α) and other pro-inflammatory cytokines released by immunocytes infiltrating the pancreas in response to unknown exogenous and endogenous toxin(s). On the other hand, type 2 DM is due to increased peripheral insulin resistance secondary to enhanced production of IL-6 and TNF-α in response to high-fat and/or calorie-rich diet (rich in saturated and trans fats). Type 2 DM is also associated with significant alterations in the production and action of hypothalamic neurotransmitters, eNO, BDNF, free radicals, gut hormones, and vagus nerve activity. Thus, type 1 DM is because of excess production of pro-inflammatory cytokines close to β cells, whereas type 2 DM is due to excess of pro-inflammatory cytokines in the systemic circulation. Hence, methods designed to suppress excess production of pro-inflammatory cytokines may form a new approach to prevent both type 1 and type 2 DM. Roux-en-Y gastric bypass and similar surgeries ameliorate type 2 DM, partly by restoring to normal: gut hormones, hypothalamic neurotransmitters, eNO, vagal activity, gut microbiota, bioactive lipids, BDNF production in the gut and hypothalamus, concentrations of cytokines and free radicals that results in resetting glucose-stimulated insulin production by pancreatic β cells. Our recent studies suggested that bioactive lipids, such as arachidonic acid, eicosapentaneoic acid, and docosahexaenoic acid (which are unsaturated fatty acids) and their anti-inflammatory metabolites: lipoxin A4, resolvins, protectins, and maresins, may have antidiabetic actions. These bioactive lipids have anti-inflammatory actions, enhance eNO, BDNF production, restore hypothalamic dysfunction, enhance vagal tone, modulate production and action of ghrelin, leptin and adiponectin, and influence gut microbiota that may explain their antidiabetic action. These pieces of evidence suggest that methods designed to selectively deliver bioactive lipids to pancreatic β cells, gut, liver, and muscle may prevent type 1 and type 2 DM.
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Affiliation(s)
- Undurti N. Das
- BioScience Research Centre, Department of Medicine, Gayatri Vidya Parishad Hospital, GVP College of Engineering Campus, Visakhapatnam, India
- UND Life Sciences, Battle Ground, WA, United States
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Freyberg Z, Aslanoglou D, Shah R, Ballon JS. Intrinsic and Antipsychotic Drug-Induced Metabolic Dysfunction in Schizophrenia. Front Neurosci 2017; 11:432. [PMID: 28804444 PMCID: PMC5532378 DOI: 10.3389/fnins.2017.00432] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 07/13/2017] [Indexed: 12/12/2022] Open
Abstract
For decades, there have been observations demonstrating significant metabolic disturbances in people with schizophrenia including clinically relevant weight gain, hypertension, and disturbances in glucose and lipid homeostasis. Many of these findings pre-date the use of antipsychotic drugs (APDs) which on their own are also strongly associated with metabolic side effects. The combination of APD-induced metabolic changes and common adverse environmental factors associated with schizophrenia have made it difficult to determine the specific contributions of each to the overall metabolic picture. Data from drug-naïve patients, both from the pre-APD era and more recently, suggest that there may be an intrinsic metabolic risk associated with schizophrenia. Nevertheless, these findings remain controversial due to significant clinical variability in both psychiatric and metabolic symptoms throughout patients' disease courses. Here, we provide an extensive review of classic and more recent literature describing the metabolic phenotype associated with schizophrenia. We also suggest potential mechanistic links between signaling pathways associated with schizophrenia and metabolic dysfunction. We propose that, beyond its symptomatology in the central nervous system, schizophrenia is also characterized by pathophysiology in other organ systems directly related to metabolic control.
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Affiliation(s)
- Zachary Freyberg
- Department of Psychiatry, University of PittsburghPittsburgh, PA, United States
- Department of Cell Biology, University of PittsburghPittsburgh, PA, United States
| | - Despoina Aslanoglou
- Department of Psychiatry, University of PittsburghPittsburgh, PA, United States
| | - Ripal Shah
- Department of Psychiatry and Behavioral Sciences, Stanford UniversityStanford, CA, United States
| | - Jacob S. Ballon
- Department of Psychiatry and Behavioral Sciences, Stanford UniversityStanford, CA, United States
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30
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Muscogiuri G, Balercia G, Barrea L, Cignarelli A, Giorgino F, Holst JJ, Laudisio D, Orio F, Tirabassi G, Colao A. Gut: A key player in the pathogenesis of type 2 diabetes? Crit Rev Food Sci Nutr 2017; 58:1294-1309. [PMID: 27892685 DOI: 10.1080/10408398.2016.1252712] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The gut regulates glucose and energy homeostasis; thus, the presence of ingested nutrients into the gut activates sensing mechanisms that affect both glucose homeostasis and regulate food intake. Increasing evidence suggest that gut may also play a key role in the pathogenesis of type 2 diabetes which may be related to both the intestinal microbiological profile and patterns of gut hormones secretion. Intestinal microbiota includes trillions of microorganisms but its composition and function may be adversely affected in type 2 diabetes. The intestinal microbiota may be responsible of the secretion of molecules that may impair insulin secretion/action. At the same time, intestinal milieu regulates the secretion of hormones such as GLP-1, GIP, ghrelin, gastrin, somatostatin, CCK, serotonin, peptide YY, GLP-2, all of which importantly influence metabolism in general and in particular glucose metabolism. Thus, the aim of this paper is to review the current evidence on the role of the gut in the pathogenesis of type 2 diabetes, taking into account both hormonal and microbiological aspects.
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Affiliation(s)
| | - Giancarlo Balercia
- b Division of Endocrinology, Department of Clinical and Molecular Sciences , Umberto I Hospital, Polytechnic University of Marche , Ancona , Italy
| | | | - Angelo Cignarelli
- c Department of Emergency and Organ Transplantation, Section of Internal Medicine, Endocrinology, Andrology, and Metabolic Diseases , University of Bari Aldo Moro , Bari , Italy
| | - Francesco Giorgino
- c Department of Emergency and Organ Transplantation, Section of Internal Medicine, Endocrinology, Andrology, and Metabolic Diseases , University of Bari Aldo Moro , Bari , Italy
| | - Jens J Holst
- d NNF Center for Basic Metabolic Research and Department of Biomedical Sciences , Panum Institute, University of Copenhagen, Copenhagen , Denmark
| | | | - Francesco Orio
- e Endocrinology, Department of Sports Science and Wellness , "Parthenope" University Naples , Naples , Italy
| | - Giacomo Tirabassi
- b Division of Endocrinology, Department of Clinical and Molecular Sciences , Umberto I Hospital, Polytechnic University of Marche , Ancona , Italy
| | - Annamaria Colao
- f Department of Clinical Medicine and Surgery , "Federico II" University of Naples , Naples , Italy
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Avsar O, Kuskucu A, Sancak S, Genc E. Are dopaminergic genotypes risk factors for eating behavior and obesity in adults? Neurosci Lett 2017. [DOI: 10.1016/j.neulet.2017.06.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Ueki N, Kanasaki K, Kanasaki M, Takeda S, Koya D. Catechol-O-Methyltransferase Deficiency Leads to Hypersensitivity of the Pressor Response Against Angiotensin II. Hypertension 2017; 69:1156-1164. [DOI: 10.1161/hypertensionaha.117.09247] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 03/01/2017] [Accepted: 04/04/2017] [Indexed: 11/16/2022]
Abstract
Catechol-O-methyltransferase (COMT) metabolizes 2-hydroxyestradiol into 2-methoxyestradiol (2-ME); COMT deficiency has shown to be associated with hypertension in men and preeclampsia, the disease associated with hypersensitivity of pressor response against angiotensin II (Ang II). Here, we found that COMT deficiency could explain the hypersensitivity of pressor response against Ang II in mice because of the lack of 2-ME–dependent suppression of angiotensin II receptor type 1 (AT1R). Male C57BL/6 mice were subjected to COMT inhibitor (COMTi: 25 mg/kg per day) or oil (control) for 4 weeks, with or without low-dose Ang II infusion (ANGII: 70 ng/kg per minute) for the last 3 weeks. The Ang II–infused mice were treated with 2-ME (10 ng/d) or vehicle for the last 1 week. We obtained the following experimental groups: control, ANGII, COMTi, COMTi+ANGII, and COMTi+ANGII+2-ME. We performed similar experiments using the in vivo administration of small interfering RNA of COMT instead of COMTi. Neither ANGII nor COMTi exhibited significant alterations in systolic blood pressure. Compared with ANGII or COMTi, COMTi+ANGII displayed significantly higher systolic blood pressure, albuminuria, and glomerular endotheliosis; 2-ME normalized such alterations. Similar phenotypes were observed in COMT small interfering RNA–treated mice. In the aorta of COMT-deficient mice, AT1R expression was increased; 2-ME suppressed AT1R expression. The 2-ME exhibited peroxisome proliferator–activated receptor γ agonistic activity in vitro and ex vivo plasma from pregnant female mice as well. In vitro, 2-ME suppressed both basal and Ang II–induced AT1R levels in a peroxisome proliferator–activated receptor γ–dependent manner. The 2-ME is relevant to combat COMT deficiency–associated hypertensive disorders via suppression of AT1R by its peroxisome proliferator–activated receptor γ activity.
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Affiliation(s)
- Norikazu Ueki
- From the Department of Obstetrics and Gynecology, Juntendo University, Tokyo, Japan (N.U., S.T.); and Department of Diabetology and Endocrinology (N.U., K.K., M.K., D.K.) and Division of Anticipatory Molecular Food Science and Technology, Medical Research Institute (K.K., D.K.), Kanazawa Medical University, Ishikawa, Japan
| | - Keizo Kanasaki
- From the Department of Obstetrics and Gynecology, Juntendo University, Tokyo, Japan (N.U., S.T.); and Department of Diabetology and Endocrinology (N.U., K.K., M.K., D.K.) and Division of Anticipatory Molecular Food Science and Technology, Medical Research Institute (K.K., D.K.), Kanazawa Medical University, Ishikawa, Japan
| | - Megumi Kanasaki
- From the Department of Obstetrics and Gynecology, Juntendo University, Tokyo, Japan (N.U., S.T.); and Department of Diabetology and Endocrinology (N.U., K.K., M.K., D.K.) and Division of Anticipatory Molecular Food Science and Technology, Medical Research Institute (K.K., D.K.), Kanazawa Medical University, Ishikawa, Japan
| | - Satoru Takeda
- From the Department of Obstetrics and Gynecology, Juntendo University, Tokyo, Japan (N.U., S.T.); and Department of Diabetology and Endocrinology (N.U., K.K., M.K., D.K.) and Division of Anticipatory Molecular Food Science and Technology, Medical Research Institute (K.K., D.K.), Kanazawa Medical University, Ishikawa, Japan
| | - Daisuke Koya
- From the Department of Obstetrics and Gynecology, Juntendo University, Tokyo, Japan (N.U., S.T.); and Department of Diabetology and Endocrinology (N.U., K.K., M.K., D.K.) and Division of Anticipatory Molecular Food Science and Technology, Medical Research Institute (K.K., D.K.), Kanazawa Medical University, Ishikawa, Japan
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Swanson G, Miller S, Alyahyawi A, Wilson B, Saadatmand F, Lee C, Dunston G, Abbas M. Genetic polymorphisms in the serotonin receptor 7 (HTR7) gene are associated with cortisol levels in African American young adults. F1000Res 2017. [DOI: 10.12688/f1000research.10442.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Introduction: Serotonin is a neurohormone involved in biological processes, such as behavior and immune function. Chronic psychosocial stressors may cause serotonin release resulting in immune system dysregulation, as evidenced by increased or far decreased levels of cortisol, a blood biomarker of stress and immune function. We hypothesize that genetic polymorphisms in the HTR7 gene are associated with both hypo- and hyper-cortisolism. Methods: The study population included 602 African American subjects between 18-34 years of age, living in Washington, D.C. Five single nucleotide polymorphisms (SNPs) in HTR7, rs2420367, rs12412496, rs2185706, rs7089533, and rs7093602 were genotyped by restriction fragment length polymorphism or the TaqMan assay. Statistical analysis, using the program SNPstat, was performed to determine their associations with cortisol measured in the study population. Results: While an increased risk of hypocortisolism was found to be associated with rs2420367, rs2185706, and rs7093602 in a gender specific manner, no genotypes could be associated with hypercortisolism. Inversely, a decreased risk of hypocortisolism was found with the haplotype CGGCC (p=0.033), which remained significant in males. When adjusting for gender, females associated with the haplotype AGACC. Hypercortisolism was also associated with a decreased risk for the haplotypes AAACC (p=0.042) and AAGTT (p=0.001). Discussion: Based on these results, genetic variation in the HTR7 gene may contribute to both stress and inflammation, and will provide a new glimpse into stress-related inflammation psychophysiology.
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Bieliński M, Jaracz M, Lesiewska N, Tomaszewska M, Sikora M, Junik R, Kamińska A, Tretyn A, Borkowska A. Association between COMT Val158Met and DAT1 polymorphisms and depressive symptoms in the obese population. Neuropsychiatr Dis Treat 2017; 13:2221-2229. [PMID: 28860780 PMCID: PMC5571853 DOI: 10.2147/ndt.s138565] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVES Depressive symptoms are common among patients with obesity. Abnormalities in dopamine signaling involved in the reward circuit may ensue excessive consumption of food, resulting in obesity and leading to neuropsychiatric disorders such as depression. This study sought to investigate the association of polymorphisms in the genes encoding DAT1/SLC6A3 and COMT with the intensity of depressive symptoms in obese subjects. PARTICIPANTS AND METHODS Prevalence and severity of depressive symptoms were assessed in a group of 364 obese patients using the Beck Depression Inventory (BDI) and the Hamilton Depression Rating Scale (HDRS). Genetic polymorphisms in DAT1 and COMT were evaluated in peripheral blood samples. RESULTS The results indicated an association between DAT1 alleles and depressive symptoms, as well as severity of obesity. Subjects homozygous for the nine-repeat allele scored higher in BDI (P=0.022) and HDRS (P=0.00001), suggesting higher intensity of depression in both sexes. This allele was also associated with the highest body mass index (BMI; P=0.001). Carriers of the Val158Met allele of COMT scored higher on both depression scales (BDI, P=0.0005; HRDS, P=0.002) and had the highest BMI values. CONCLUSION Polymorphisms in the DAT1 and COMT genes are associated with a greater intensity of depressive symptoms in the obese population.
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Affiliation(s)
- Maciej Bieliński
- Department of Clinical Neuropsychology, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, Bydgoszcz
| | - Marcin Jaracz
- Department of Clinical Neuropsychology, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, Bydgoszcz
| | - Natalia Lesiewska
- Department of Clinical Neuropsychology, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, Bydgoszcz
| | - Marta Tomaszewska
- Department of Clinical Neuropsychology, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, Bydgoszcz
| | - Marcin Sikora
- Department of Biotechnology, Nicolaus Copernicus University in Toruń, Toruń
| | - Roman Junik
- Department of Endocrinology and Diabetology, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
| | - Anna Kamińska
- Department of Endocrinology and Diabetology, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
| | - Andrzej Tretyn
- Department of Biotechnology, Nicolaus Copernicus University in Toruń, Toruń
| | - Alina Borkowska
- Department of Clinical Neuropsychology, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, Bydgoszcz
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Al-Zoairy R, Pedrini MT, Khan MI, Engl J, Tschoner A, Ebenbichler C, Gstraunthaler G, Salzmann K, Bakry R, Niederwanger A. Serotonin improves glucose metabolism by Serotonylation of the small GTPase Rab4 in L6 skeletal muscle cells. Diabetol Metab Syndr 2017; 9:1. [PMID: 28053672 PMCID: PMC5209910 DOI: 10.1186/s13098-016-0201-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 12/10/2016] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Serotonin (5-HT) improves insulin sensitivity and glucose metabolism, however, the underlying molecular mechanism has remained elusive. Previous studies suggest that 5-HT can activate intracellular small GTPases directly by covalent binding, a process termed serotonylation. Activated small GTPases have been associated with increased GLUT4 translocation to the cell membrane. Therefore, we investigated whether serotonylation of small GTPases may be involved in improving Insulin sensitivity and glucose metabolism. METHODS Using fully differentiated L6 rat skeletal muscle cells, we studied the effect of 5-HT in the absence or presence of insulin on glycogen synthesis, glucose uptake and GLUT4 translocation. To prove our L6 model we additionally performed preliminary experiments in C2C12 murine skeletal muscle cells. RESULTS Incubation with 5-HT led to an increase in deoxyglucose uptake in a concentration-dependent fashion. Accordingly, GLUT4 translocation to the cell membrane and glycogen content were increased. These effects of 5-HT on Glucose metabolism could be augmented by co-incubation with insulin and blunted by co incubation of 5-HT with monodansylcadaverine, an inhibitor of protein serotonylation. In accordance with this observation, incubation with 5-HT resulted in serotonylation of a protein with a molecular weight of approximately 25 kDa. We identified this protein as the small GTPase Rab4, the activity of which has been shown to be stimulated by both insulin signalling and serotonylation. CONCLUSION Our data suggest that 5-HT elicits its beneficial effects on Glucose metabolism through serotonylation of Rab4, which likely represents the converging point between the insulin and the 5-HT signalling cascades.
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Affiliation(s)
- Ramona Al-Zoairy
- Department of Internal Medicine I, Medical University of Innsbruck, Innsbruck, Austria
| | - Michael T. Pedrini
- Department of Internal Medicine I, Medical University of Innsbruck, Innsbruck, Austria
| | - Mohammad Imran Khan
- Department of Internal Medicine I, Medical University of Innsbruck, Innsbruck, Austria
| | - Julia Engl
- Department of Internal Medicine I, Medical University of Innsbruck, Innsbruck, Austria
| | - Alexander Tschoner
- Department of Internal Medicine I, Medical University of Innsbruck, Innsbruck, Austria
| | - Christoph Ebenbichler
- Department of Internal Medicine I, Medical University of Innsbruck, Innsbruck, Austria
| | | | - Karin Salzmann
- Department of Internal Medicine I, Medical University of Innsbruck, Innsbruck, Austria
| | - Rania Bakry
- Institute of Analytical Chemistry and Radiochemistry, Leopold-Franzens University Innsbruck, Innsbruck, Austria
| | - Andreas Niederwanger
- Department of Internal Medicine I, Medical University of Innsbruck, Innsbruck, Austria
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Zhong J, Chen X, Wu N, Shen C, Cui H, Du W, Zhang Z, Feng M, Liu J, Lin S, Zhang L, Wang J, Chen X, Duan S. Catechol-O-methyltransferase promoter hypomethylation is associated with the risk of coronary heart disease. Exp Ther Med 2016; 12:3445-3449. [PMID: 27882177 DOI: 10.3892/etm.2016.3757] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 05/24/2016] [Indexed: 02/05/2023] Open
Abstract
Catechol-O-methyltransferase (COMT) gene variation is known to be associated with the risk of acute coronary events. The purpose of the present study was to investigate the contribution of COMT promoter methylation towards the risk of coronary heart disease (CHD). COMT methylation was evaluated in 48 CHD cases and 48 well-matched non-CHD controls using bisulfite pyrosequencing technology. The results demonstrated that CHD cases had a significantly lower level of methylation at COMT CpG3 sites compared with the controls (33.77±5.71 vs. 36.42±5.00%; P=0.018). Further analysis, according to gender, showed that CpG3 methylation was associated with CHD in males (P=0.038) but not in females (P=0.253), suggesting that there is a gender disparity in the association between COMT methylation and CHD. In conclusion, it was determined that COMT CpG3 hypomethylation is associated with an increased risk of CHD in males.
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Affiliation(s)
- Jinyan Zhong
- Department of Cardiology, Ningbo First Hospital, Ningbo University, Ningbo, Zhejiang 315010, P.R. China
| | - Xiaoying Chen
- Medical Genetics Center, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Nan Wu
- Department of Cardiology, Ningbo First Hospital, Ningbo University, Ningbo, Zhejiang 315010, P.R. China
| | - Caijie Shen
- Department of Cardiology, Ningbo Seventh Hospital, Ningbo, Zhejiang 315202, P.R. China
| | - Hanbin Cui
- Department of Cardiology, Ningbo First Hospital, Ningbo University, Ningbo, Zhejiang 315010, P.R. China
| | - Weiping Du
- Department of Cardiology, Ningbo First Hospital, Ningbo University, Ningbo, Zhejiang 315010, P.R. China
| | - Zhaoxia Zhang
- Department of Cardiology, Ningbo First Hospital, Ningbo University, Ningbo, Zhejiang 315010, P.R. China
| | - Mingjun Feng
- Department of Cardiology, Ningbo First Hospital, Ningbo University, Ningbo, Zhejiang 315010, P.R. China
| | - Junsong Liu
- Department of Cardiology, Ningbo First Hospital, Ningbo University, Ningbo, Zhejiang 315010, P.R. China
| | - Shaoyi Lin
- Department of Cardiology, Ningbo First Hospital, Ningbo University, Ningbo, Zhejiang 315010, P.R. China
| | - Lulu Zhang
- Department of Cardiology, Ningbo First Hospital, Ningbo University, Ningbo, Zhejiang 315010, P.R. China
| | - Jian Wang
- Department of Cardiology, Ningbo First Hospital, Ningbo University, Ningbo, Zhejiang 315010, P.R. China
| | - Xiaomin Chen
- Department of Cardiology, Ningbo First Hospital, Ningbo University, Ningbo, Zhejiang 315010, P.R. China
| | - Shiwei Duan
- Medical Genetics Center, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
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Dostal AM, Arikawa A, Espejo L, Bedell S, Kurzer MS, Stendell-Hollis NR. Green tea extract and catechol-O-methyltransferase genotype modify the post-prandial serum insulin response in a randomised trial of overweight and obese post-menopausal women. J Hum Nutr Diet 2016; 30:166-176. [PMID: 27600055 DOI: 10.1111/jhn.12408] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
BACKGROUND Green tea extract (GTE) may be involved in a favourable post-prandial response to high-carbohydrate meals. The catechol-O-methyltransferase (COMT) genotype may modify these effects. We examined the acute effects of GTE supplementation on the post-prandial response to a high-carbohydrate meal by assessing appetite-associated hormones and glucose homeostasis marker concentrations in women who consumed 843 mg of (-)-epigallocatechin-3-gallate (EGCG) or placebo capsules for 11-12 months. METHODS Sixty Caucasian post-menopausal women (body mass index ≥ 25.0 kg m-2 ) were included in a randomised, double-blind feeding study. GTE was consumed with a breakfast meal [2784.0 kJ (665.4 kcal); 67.2% carbohydrate]. Blood samples were drawn pre-meal, post-meal, and every 30 min for 4 h. Participants completed six satiety questionnaires. RESULTS Plasma leptin, ghrelin and adiponectin did not differ between GTE and placebo at any time point; COMT genotype did not modify these results. Participants randomised to GTE with the high-activity form of COMT (GTE-high COMT) had higher insulin concentrations at time 0, 0.5 and 1.0 h post-meal compared to all COMT groups randomised to placebo. Insulin remained higher in the GTE-high COMT group at 1.5, 2.0 and 2.5 h compared to Placebo-low COMT (P < 0.02). GTE-high COMT had higher insulin concentrations at times 0, 0.5, 1.0, 1.5 and 2.0 h compared to the GTE-low COMT (P ≤ 0.04). Area under the curve measurements of satiety did not differ between GTE and placebo. CONCLUSIONS GTE supplementation and COMT genotype did not alter acute post-prandial responses of leptin, ghrelin, adiponectin or satiety, although it may be involved in post-meal insulinaemic response of overweight and obese post-menopausal women.
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Affiliation(s)
- A M Dostal
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - A Arikawa
- Department of Nutrition and Dietetics, University of North Florida, Jacksonville, FL, USA
| | - L Espejo
- Department of Food Science and Nutrition, University of Minnesota, St Paul, MN, USA
| | - S Bedell
- Department of Food Science and Nutrition, University of Minnesota, St Paul, MN, USA
| | - M S Kurzer
- Department of Food Science and Nutrition, University of Minnesota, St Paul, MN, USA
| | - N R Stendell-Hollis
- Department of Nutrition, Exercise, and Health Sciences, Central Washington University, Ellensburg, WA, USA
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Hall KT, Jablonski KA, Chen L, Harden M, Tolkin BR, Kaptchuk TJ, Bray GA, Ridker PM, Florez JC, Mukamal KJ, Chasman DI. Catechol-O-methyltransferase association with hemoglobin A1c. Metabolism 2016; 65:961-967. [PMID: 27282867 PMCID: PMC4924514 DOI: 10.1016/j.metabol.2016.04.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 03/10/2016] [Accepted: 04/07/2016] [Indexed: 01/06/2023]
Abstract
AIMS Catecholamines have metabolic effects on blood pressure, insulin sensitivity and blood glucose. Genetic variation in catechol-O-methyltransferase (COMT), an enzyme that degrades catecholamines, is associated with cardiometabolic risk factors and incident cardiovascular disease (CVD). Here we examined COMT effects on glycemic function and type 2 diabetes. METHODS We tested whether COMT polymorphisms were associated with baseline HbA1c in the Women's Genome Health Study (WGHS), and Meta-Analyses of Glucose and Insulin-related traits Consortium (MAGIC), and with susceptibility to type 2 diabetes in WGHS, DIAbetes Genetics Replication And Meta-analysis consortium (DIAGRAM), and the Diabetes Prevention Program (DPP). Given evidence that COMT modifies some drug responses, we examined association with type 2 diabetes and randomized metformin and aspirin treatment. RESULTS COMT rs4680 high-activity G-allele was associated with lower HbA1c in WGHS (β=-0.032% [0.012], p=0.008) and borderline significant in MAGIC (β=-0.006% [0.003], p=0.07). Combined COMT per val allele effects on type 2 diabetes were significant (OR=0.98 [0.96-0.998], p=0.03) in fixed-effects analyses across WGHS, DIAGRAM, and DPP. Similar results were obtained for 2 other COMT SNPs rs4818 and rs4633. In the DPP, the rs4680 val allele was borderline associated with lower diabetes incidence among participants randomized to metformin (HR=0.81 [0.65-1.00], p=0.05). CONCLUSIONS COMT rs4680 high-activity G-allele was associated with lower HbA1c and modest protection from type 2 diabetes. The directionality of COMT associations was concordant with those previously observed for cardiometabolic risk factors and CVD.
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Affiliation(s)
- Kathryn T. Hall
- Division of Preventive Medicine, Brigham and Women’s Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
- Corresponding author at: Division of Preventive Medicine, Brigham and Women’s Hospital, 900 Commonwealth Avenue, Boston, MA, 02215, USA. Tel.: +1 617 278 0938; fax: +1 617 731 3843. (K.T. Hall)
| | | | - Ling Chen
- Center for Human Genetic Research and Diabetes Research Center (Diabetes Unit), Massachusetts General Hospital, Boston, MA, USA
| | - Maegan Harden
- Genomics Platform, Broad Institute, Cambridge, MA, USA
| | - Benjamin R. Tolkin
- Division of General Medicine and Primary Care, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Ted J. Kaptchuk
- Harvard Medical School, Boston, MA, USA
- Division of General Medicine and Primary Care, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - George A. Bray
- Pennington Biomedical Research Center, Baton Rouge, LA 70808
| | - Paul M. Ridker
- Division of Preventive Medicine, Brigham and Women’s Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Jose C. Florez
- Harvard Medical School, Boston, MA, USA
- Center for Human Genetic Research and Diabetes Research Center (Diabetes Unit), Massachusetts General Hospital, Boston, MA, USA
- Program in Medical and Population Genetics, Broad Institute, Cambridge, MA, USA
| | | | - Kenneth J. Mukamal
- Harvard Medical School, Boston, MA, USA
- Division of General Medicine and Primary Care, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Daniel I. Chasman
- Division of Preventive Medicine, Brigham and Women’s Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
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Ramus SM, Cilensek I, Petrovic MG, Soucek M, Kruzliak P, Petrovic D. Single nucleotide polymorphisms in the Trx2/TXNIP and TrxR2 genes of the mitochondrial thioredoxin antioxidant system and the risk of diabetic retinopathy in patients with Type 2 diabetes mellitus. J Diabetes Complications 2016; 30:192-8. [PMID: 26763822 DOI: 10.1016/j.jdiacomp.2015.11.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 11/13/2015] [Accepted: 11/25/2015] [Indexed: 01/18/2023]
Abstract
BACKGROUND Oxidative stress plays an important role in the pathogenesis of diabetes and its complications. The aim of this study was to examine the possible association between seven single nucleotide polymorphisms (SNPs) of the Trx2/TXNIP and TrxR2 genes encoding proteins involved in the thioredoxin antioxidant defence system and the risk of diabetic retinopthy (DR). DESIGN Cross-sectional case-control study. PARTICIPANTS A total of 802 Slovenian patients with Type 2 diabetes mellitus; 277 patients with DR and 525 with no DR were enrolled. METHODS Patients genotypes of the SNPs; including rs8140110, rs7211, rs7212, rs4755, rs1548357, rs4485648 and rs5748469 were determined by the competitive allele specific PCR method. MAIN OUTCOME MEASURES Each genotype of examined SNPs was regressed in a logistic model, assuming the co-dominant, dominant and the recessive models of inheritance with covariates of duration of diabetes, HbA1c, insulin therapy, total cholesterol and LDL cholesterol levels. RESULTS In the present study, for the first time we identified an association between the rs4485648 polymorphism of the TrxR2 gene and DR in Caucasians with Type 2 DM. The estimated ORs of adjusted logistic regression models were found to be as follows: 4.4 for CT heterozygotes, 4.3 for TT homozygotes (co-dominant genetic model) and 4.4 for CT+TT genotypes (dominant genetic model). CONCLUSIONS In our case-control study we were not able to demonstrate any association between rs8140110, rs7211, rs7212, rs4755, rs1548357, and rs5748469 and DR, however, our findings provide evidence that the rs4485648 polymorphism of the TrxR2 gene might exert an independent effect on the development of DR.
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Affiliation(s)
- Sara Mankoc Ramus
- Institute of Histology and Embriology, Medical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Ines Cilensek
- Institute of Histology and Embriology, Medical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | | | - Miroslav Soucek
- 2(nd) Department of Internal Medicine, St. Anne´s University Hospital and Masaryk University, Brno, Czech Republic
| | - Peter Kruzliak
- Laboratory of Structural Biology and Proteomics, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic; Department of Pharmacology and Toxicology, Faculty of Pharmacy, Comenius University, Bratislava, Slovak Republic.
| | - Daniel Petrovic
- Institute of Histology and Embriology, Medical Faculty, University of Ljubljana, Ljubljana, Slovenia.
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Dostal AM, Samavat H, Espejo L, Arikawa AY, Stendell-Hollis NR, Kurzer MS. Green Tea Extract and Catechol-O-Methyltransferase Genotype Modify Fasting Serum Insulin and Plasma Adiponectin Concentrations in a Randomized Controlled Trial of Overweight and Obese Postmenopausal Women. J Nutr 2016; 146:38-45. [PMID: 26581683 PMCID: PMC4700981 DOI: 10.3945/jn.115.222414] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 10/16/2015] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Green tea consumption has been associated with favorable changes in body weight and obesity-related hormones, although it is not known whether these changes result from green tea polyphenols or caffeine. OBJECTIVE We examined the impact of decaffeinated green tea extract (GTE) containing 843 mg of (-)-epigallocatechin-3-gallate on anthropometric variables, obesity-associated hormones, and glucose homeostasis. METHODS The Minnesota Green Tea Trial was a 12-mo randomized, double-blind, placebo-controlled clinical trial of 937 healthy postmenopausal women assigned to either decaffeinated GTE (1315 mg total catechins/d) or a placebo, stratified by catechol-O-methyltransferase (COMT) genotype. This study was conducted in a subset of 237 overweight and obese participants [body mass index (BMI) ≥25 kg/m(2)]. RESULTS No changes in energy intake, body weight, BMI, or waist circumference (WC) were observed over 12 mo in women taking GTE (n = 117) or placebo (n = 120). No differences were seen in circulating leptin, ghrelin, adiponectin, or glucose concentrations at month 12. Participants randomly assigned to GTE with baseline insulin ≥10 μIU/mL (n = 23) had a decrease in fasting serum insulin from baseline to month 12 (-1.43 ± 0.59 μIU/mL), whereas those randomly assigned to placebo with baseline insulin ≥10 μIU/mL (n = 19) had an increase in insulin over 12 mo (0.55 ± 0.64 μIU/mL, P < 0.01). Participants with the homozygous high-activity (G/G) form of COMT had significantly lower adiponectin (5.97 ± 0.50 compared with 7.58 ± 0.53 μg/mL, P = 0.03) and greater insulin concentrations (7.63 ± 0.53 compared with 6.18 ± 0.36 μIU/mL, P = 0.02) at month 12 compared with those with the low-activity (A/A) genotype, regardless of treatment group. CONCLUSIONS Decaffeinated GTE was not associated with reductions in body weight, BMI, or WC and did not alter energy intake or mean hormone concentrations in healthy postmenopausal women over 12 mo. GTE decreased fasting insulin concentrations in those with elevated baseline fasting concentrations. The high-activity form of the COMT enzyme may be associated with elevations in insulin and a reduction in adiponectin concentrations over time. This trial was registered at http://www.clinicaltrials.gov as NCT00917735.
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Affiliation(s)
- Allison M Dostal
- Department of Food Science and Nutrition, University of Minnesota, St. Paul, MN
| | - Hamed Samavat
- Department of Food Science and Nutrition, University of Minnesota, St. Paul, MN
| | - Luis Espejo
- Department of Food Science and Nutrition, University of Minnesota, St. Paul, MN
| | - Andrea Y Arikawa
- Department of Nutrition and Dietetics, University of North Florida, Jacksonville, FL; and
| | - Nicole R Stendell-Hollis
- Department of Nutrition, Exercise, and Health Sciences, Central Washington University, Ellensburg, WA
| | - Mindy S Kurzer
- Department of Food Science and Nutrition, University of Minnesota, St. Paul, MN;
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Miranda RC, Vetter SB, Genro JP, Campagnolo PD, Mattevi VS, Vitolo MR, Almeida S. SLC6A14 and 5-HTR2C polymorphisms are associated with food intake and nutritional status in children. Clin Biochem 2015; 48:1277-82. [DOI: 10.1016/j.clinbiochem.2015.07.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 06/24/2015] [Accepted: 07/02/2015] [Indexed: 10/23/2022]
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Mansego ML, De Marco G, Ivorra C, Lopez-Izquierdo R, Morcillo S, Rojo-Martínez G, González-Albert V, Martinez F, Soriguer F, Martín-Escudero JC, Redon J, Chaves FJ. The nutrigenetic influence of the interaction between dietary vitamin E and TXN and COMT gene polymorphisms on waist circumference: a case control study. J Transl Med 2015; 13:286. [PMID: 26329592 PMCID: PMC4557824 DOI: 10.1186/s12967-015-0652-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 08/25/2015] [Indexed: 03/21/2023] Open
Abstract
Background Abdominal obesity (AO) is a common modifiable risk factor for certain non-communicable diseases associated with enhanced oxidative stress (OS). The objective of this work was to investigate whether the interaction between antioxidant vitamin intake and OS-related polymorphisms modulates gene-associated anthropometry in a Spanish population. Methods A total of 246 subjects with AO, and 492 age and gender matched non-AO subjects were included in the study. Anthropometric, biochemical, and OS parameters, and antioxidant dietary intake data were assessed using validated procedures. DNA from white blood cells was isolated and the genotype of seven polymorphisms from genes
involved in OS (pro-oxidant and antioxidant) were analyzed using the SNPlex system. The effects of the c.-793T > C polymorphism on promoter activity and thus thioredoxin (TXN) activity were examined using reporter assays. Results The AO group had higher 8-Oxo-2′-deoxyguanosine levels and took in less vitamin A and vitamin E compared to the non-AO group. Logistic regression analysis revealed that the rs2301241 polymorphism in TXN and rs740603 in catechol-O-methyltransferase (COMT) were associated with waist circumference (WC) and AO. Moreover, these polymorphisms were more strongly associated with variations in WC in subjects with low vitamin E intakes. A promoter assay revealed that the T to C conversion at c.-793 (rs2301241) induced a more than two fold increase in reporter gene expression. Conclusions WC is associated both with dietary vitamin E intake and genetic variants of TXN and COMT suggesting that existence of a complex nutrigenetic pathway that involves regulation of AO. Electronic supplementary material The online version of this article (doi:10.1186/s12967-015-0652-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Maria L Mansego
- CIBER Physiopathology of Obesity and Nutrition CIBERobn, CB06/03, Institute of Health Carlos III, c/Sinesio Delgado 6, 28029, Madrid, Spain. .,Genotyping and Genetic Diagnosis Unit, Fundación de Investigación del Hospital Clínico de Valencia-INCLIVA, Av. Blasco Ibañez 17, 46010, Valencia, Spain.
| | - Griselda De Marco
- Genotyping and Genetic Diagnosis Unit, Fundación de Investigación del Hospital Clínico de Valencia-INCLIVA, Av. Blasco Ibañez 17, 46010, Valencia, Spain. .,CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), c/Sinesio Delgado 6, 28029, Madrid, Spain.
| | - Carmen Ivorra
- CIBER Physiopathology of Obesity and Nutrition CIBERobn, CB06/03, Institute of Health Carlos III, c/Sinesio Delgado 6, 28029, Madrid, Spain. .,Cardiovascular Risk Unit, Consorcio, Hospital General, University of Valencia, Av. Tres Cruces 2, 46014, Valencia, Spain.
| | - Raúl Lopez-Izquierdo
- Internal Medicine Unit, Rio Hortega Hospital, c/Dulzaina 2, 47012, Valladolid, Spain.
| | - Sonsoles Morcillo
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), c/Sinesio Delgado 6, 28029, Madrid, Spain. .,Endocrinology and Nutrition Department, Carlos Haya University Hospital and Instituto de Investigación Biomédica de Málaga (IBIMA), c/Jorge Luis Borges 15, 29010, Málaga, Spain.
| | - Gemma Rojo-Martínez
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), c/Sinesio Delgado 6, 28029, Madrid, Spain. .,Endocrinology and Nutrition Department, Carlos Haya University Hospital and Instituto de Investigación Biomédica de Málaga (IBIMA), c/Jorge Luis Borges 15, 29010, Málaga, Spain.
| | - Verónica González-Albert
- Genotyping and Genetic Diagnosis Unit, Fundación de Investigación del Hospital Clínico de Valencia-INCLIVA, Av. Blasco Ibañez 17, 46010, Valencia, Spain.
| | - Fernando Martinez
- CIBER Physiopathology of Obesity and Nutrition CIBERobn, CB06/03, Institute of Health Carlos III, c/Sinesio Delgado 6, 28029, Madrid, Spain. .,Hypertension Clinic, Hospital Clínico Universitario de Valencia, Av. Blasco Ibañez 15, 46010, Valencia, Spain.
| | - Federico Soriguer
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), c/Sinesio Delgado 6, 28029, Madrid, Spain. .,Endocrinology and Nutrition Department, Carlos Haya University Hospital and Instituto de Investigación Biomédica de Málaga (IBIMA), c/Jorge Luis Borges 15, 29010, Málaga, Spain.
| | | | - Josep Redon
- CIBER Physiopathology of Obesity and Nutrition CIBERobn, CB06/03, Institute of Health Carlos III, c/Sinesio Delgado 6, 28029, Madrid, Spain. .,Hypertension Clinic, Hospital Clínico Universitario de Valencia, Av. Blasco Ibañez 15, 46010, Valencia, Spain.
| | - F Javier Chaves
- Genotyping and Genetic Diagnosis Unit, Fundación de Investigación del Hospital Clínico de Valencia-INCLIVA, Av. Blasco Ibañez 17, 46010, Valencia, Spain. .,CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), c/Sinesio Delgado 6, 28029, Madrid, Spain.
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Xiu L, Lin M, Liu W, Kong D, Liu Z, Zhang Y, Ouyang P, Liang Y, Zhong S, Chen C, Jin X, Fan X, Qin J, Zhao X, Rao S, Ding Y. Association of DRD3, COMT, and SLC6A4 Gene Polymorphisms with Type 2 Diabetes in Southern Chinese: A Hospital-Based Case-Control Study. Diabetes Technol Ther 2015; 17:580-6. [PMID: 25927430 DOI: 10.1089/dia.2014.0344] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
AIM The aim of this study was to assess the associations of six single nucleotide polymorphisms (SNPs) of three genes (DRD3, COMT, and SCL6A4) with type 2 diabetes mellitus (T2DM) in Southern Chinese. SUBJECTS AND METHODS Five hundred ninety-five cases with T2DM and 725 healthy controls of Han origin were recruited from six hospitals in Guangdong Province, Southern China. Fasting serum concentrations of markers of interest (total cholesterol, triglyceride, plasma glucose, etc.) were measured in hospitals. SNP genotyping was performed using a custom-by-design 2-×48-Plex SNPscan™ kit (Genesky Biotechnologies Inc., Shanghai, China). Single-point SNP analysis, haplotype analysis, and SNP-SNP interactions were carried out. RESULTS SNP rs4646312 in COMT achieved statistical significance in both allelic association and genotypic association and even after adjusting covariates (odds ratio [OR]=1.26; 95% confidence interval [CI], 1.04-1.53; P=0.021). Two haplotypes consisting of rs4646312 and rs4680 were also significantly associated with T2DM, of which C-G was a protective haplotype for T2DM (OR=0.83; 95% CI, 0.70-0.98; P=0.029), whereas T-A was a risk one (OR=1.23, 95% CI, 1.03-1.46; P=0.022). Interaction analysis identified a significant epistatic effect between rs4680 in COMT and rs2066713 in SCL6A4 after adjusting for covariates (OR=3.59, 95% CI, 1.72-7.48; P=0.001 for dominant-dominant model). However, only the interaction between rs4680 and rs2066713 was significant, and haplotype T-A showed a marginally increased risk after Bonferroni correction. CONCLUSIONS The genetic polymorphisms in COMT and SCL6A4 confer significant effects in joint actions to T2DM in Southern Chinese.
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Affiliation(s)
- Liangchang Xiu
- 1 Department of Epidemiology and Medical Statistics, School of Public Health, and Institute of Medical Systems Biology, Guangdong Medical College , Dongguan, Guangdong, China
| | - Meihua Lin
- 1 Department of Epidemiology and Medical Statistics, School of Public Health, and Institute of Medical Systems Biology, Guangdong Medical College , Dongguan, Guangdong, China
| | - Weiwei Liu
- 1 Department of Epidemiology and Medical Statistics, School of Public Health, and Institute of Medical Systems Biology, Guangdong Medical College , Dongguan, Guangdong, China
| | - Danli Kong
- 1 Department of Epidemiology and Medical Statistics, School of Public Health, and Institute of Medical Systems Biology, Guangdong Medical College , Dongguan, Guangdong, China
| | - Zhenghui Liu
- 1 Department of Epidemiology and Medical Statistics, School of Public Health, and Institute of Medical Systems Biology, Guangdong Medical College , Dongguan, Guangdong, China
| | - Yang Zhang
- 1 Department of Epidemiology and Medical Statistics, School of Public Health, and Institute of Medical Systems Biology, Guangdong Medical College , Dongguan, Guangdong, China
| | - Ping Ouyang
- 1 Department of Epidemiology and Medical Statistics, School of Public Health, and Institute of Medical Systems Biology, Guangdong Medical College , Dongguan, Guangdong, China
| | - Yan Liang
- 2 Department of Endocrinology and Metabolism, Maoming People's Hospital , Maoming, Guangdong, China
| | - Shouqiang Zhong
- 2 Department of Endocrinology and Metabolism, Maoming People's Hospital , Maoming, Guangdong, China
| | - Can Chen
- 3 Department of Internal Cardiology, the Affiliated Hospital of Guangdong Medical College , Zhanjiang, Guangdong, China
| | - Xin Jin
- 4 Guanlan People's Hospital , Baoan District, Shenzhen, Guangdong, China
| | - Xuejin Fan
- 5 Shilong Boai Hospital , Dongguan, Guangdong, China
| | - Jiheng Qin
- 1 Department of Epidemiology and Medical Statistics, School of Public Health, and Institute of Medical Systems Biology, Guangdong Medical College , Dongguan, Guangdong, China
| | - Xiaolei Zhao
- 1 Department of Epidemiology and Medical Statistics, School of Public Health, and Institute of Medical Systems Biology, Guangdong Medical College , Dongguan, Guangdong, China
| | - Shaoqi Rao
- 1 Department of Epidemiology and Medical Statistics, School of Public Health, and Institute of Medical Systems Biology, Guangdong Medical College , Dongguan, Guangdong, China
| | - Yuanlin Ding
- 1 Department of Epidemiology and Medical Statistics, School of Public Health, and Institute of Medical Systems Biology, Guangdong Medical College , Dongguan, Guangdong, China
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Wallace DL, Aarts E, d'Oleire Uquillas F, Dang LC, Greer SM, Jagust WJ, D'Esposito M. Genotype status of the dopamine-related catechol-O-methyltransferase (COMT) gene corresponds with desirability of "unhealthy" foods. Appetite 2015; 92:74-80. [PMID: 25963102 DOI: 10.1016/j.appet.2015.05.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 04/07/2015] [Accepted: 05/06/2015] [Indexed: 10/23/2022]
Abstract
The role of dopamine is extensively documented in weight regulation and food intake in both animal models and humans. Yet the role of dopamine has not been well studied in individual differences for food desirability. Genotype status of the dopamine-related catechol-O-methyltransferase (COMT) gene has been shown to influence dopamine levels, with greater COMT enzymatic activity in val/val individuals corresponding to greater degradation of dopamine. Decreased dopamine has been associated with poorer cognitive control and diminished goal-directed behavior in various behavioral paradigms. Additionally, dopaminergic-rich regions such as the frontal cortex and dorsal striatum have been shown to be important for supporting food-related decision-making. However, the role of dopamine, as assessed by COMT genotype status, in food desirability has not been fully explored. Therefore, we utilized an individual's COMT genotype status (n = 61) and investigated food desirability based on self-rated "healthy" and "unhealthy" food perceptions. Here we found val/val individuals (n = 19) have greater desirability for self-rated "unhealthy" food items, but not self-rated "healthy" food items, as compared to val/met (n = 24) and met/met (n = 18) individuals (p < 0.005). Utilizing an objective health measure for the food items, we also found val/val and val/met individuals have greater desirability for objectively defined "unhealthy" food items, as compared to met/met individuals (p < 0.01). This work further substantiates the role of dopamine in food-related behaviors and more specifically in relationship to food desirability for "unhealthy" food items.
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Affiliation(s)
- Deanna L Wallace
- Helen Wills Neuroscience Institute, University of California, 132 Barker Hall, Berkeley, CA 94720-3190, USA; Department of Neurosurgery, University of California, 675 Nelson Rising Lane, San Francisco, CA, 94143, USA.
| | - Esther Aarts
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Kapittelweg 29, room 0.56, 6525 EN Nijmegen, The Netherlands
| | - Federico d'Oleire Uquillas
- Helen Wills Neuroscience Institute, University of California, 132 Barker Hall, Berkeley, CA 94720-3190, USA
| | - Linh C Dang
- Department of Psychology, Vanderbilt University, 219 Wilson Hall, 111 21st Avenue, Nashville, TN 37203, USA
| | - Stephanie M Greer
- Helen Wills Neuroscience Institute, University of California, 132 Barker Hall, Berkeley, CA 94720-3190, USA
| | - William J Jagust
- Helen Wills Neuroscience Institute, University of California, 132 Barker Hall, Berkeley, CA 94720-3190, USA
| | - Mark D'Esposito
- Helen Wills Neuroscience Institute, University of California, 132 Barker Hall, Berkeley, CA 94720-3190, USA
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Markgraf CG, DeBoer E, Zhai J, Cornelius L, Zhou YY, MacSweeney C. Assessment of seizure liability of Org 306039, a 5-HT2c agonist, using hippocampal brain slice and rodent EEG telemetry. J Pharmacol Toxicol Methods 2014; 70:224-9. [DOI: 10.1016/j.vascn.2014.08.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 08/07/2014] [Accepted: 08/08/2014] [Indexed: 11/25/2022]
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Ballon JS, Pajvani U, Freyberg Z, Leibel RL, Lieberman JA. Molecular pathophysiology of metabolic effects of antipsychotic medications. Trends Endocrinol Metab 2014; 25:593-600. [PMID: 25190097 DOI: 10.1016/j.tem.2014.07.004] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 07/21/2014] [Accepted: 07/23/2014] [Indexed: 11/23/2022]
Abstract
Antipsychotic medications are associated with major metabolic changes that contribute to medical morbidity and a significantly shortened life span. The mechanisms for these changes provide us with a broader understanding of central nervous and peripheral organ-mediated metabolic regulation. This paper reviews an extensive literature regarding putative mechanisms for effects of antipsychotic medications on weight regulation and glucose homeostasis as well as potential inherent metabolic risks of schizophrenia itself. We present a model suggesting that peripheral antipsychotic targets play a critical role in drug-induced weight gain and diabetes. We propose that a better understanding of these mechanisms will be crucial to developing improved treatments for serious mental illnesses as well as providing potentially novel therapeutic targets of metabolic disorders including diabetes.
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Affiliation(s)
- Jacob S Ballon
- Department of Psychiatry, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA; Division of Experimental Therapeutics, New York State Psychiatric Institute, New York, NY 10032, USA
| | - Utpal Pajvani
- Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA; Naomi Berrie Diabetes Institute, New York, NY 10032, USA
| | - Zachary Freyberg
- Department of Psychiatry, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA; Division of Molecular Therapeutics, New York State Psychiatric Institute, New York, NY 10032, USA
| | - Rudolph L Leibel
- Naomi Berrie Diabetes Institute, New York, NY 10032, USA; Department of Pediatrics, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
| | - Jeffrey A Lieberman
- Department of Psychiatry, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA; Division of Experimental Therapeutics, New York State Psychiatric Institute, New York, NY 10032, USA.
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Perez-Cornago A, Mansego ML, Zulet MA, Martinez JA. DNA hypermethylation of the serotonin receptor type-2A gene is associated with a worse response to a weight loss intervention in subjects with metabolic syndrome. Nutrients 2014; 6:2387-403. [PMID: 24959950 PMCID: PMC4073158 DOI: 10.3390/nu6062387] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 06/11/2014] [Accepted: 06/16/2014] [Indexed: 01/30/2023] Open
Abstract
Understanding the regulation of gene activities depending on DNA methylation has been the subject of much recent study. However, although polymorphisms of the HTR2A gene have been associated with both obesity and psychiatric disorders, the role of HTR2A gene methylation in these illnesses remains uncertain. The aim of this study was to evaluate the association of HTR2A gene promoter methylation levels in white blood cells (WBC) with obesity traits and depressive symptoms in individuals with metabolic syndrome (MetS) enrolled in a behavioural weight loss programme. Analyses were based on 41 volunteers (mean age 49 ± 1 year) recruited within the RESMENA study. Depressive symptoms (as determined using the Beck Depression Inventory), anthropometric and biochemical measurements were analysed at the beginning and after six months of weight loss treatment. At baseline, DNA from WBC was isolated and cytosine methylation in the HTR2A gene promoter was quantified by a microarray approach. In the whole-study sample, a positive association of HTR2A gene methylation with waist circumference and insulin levels was detected at baseline. Obesity measures significantly improved after six months of dietary treatment, where a lower mean HTR2A gene methylation at baseline was associated with major reductions in body weight, BMI and fat mass after the treatment. Moreover, mean HTR2A gene methylation at baseline significantly predicted the decrease in depressive symptoms after the weight loss treatment. In conclusion, this study provides newer evidence that hypermethylation of the HTR2A gene in WBC at baseline is significantly associated with a worse response to a weight-loss intervention and with a lower decrease in depressive symptoms after the dietary treatment in subjects with MetS.
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Affiliation(s)
- Aurora Perez-Cornago
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, C/Irunlarrea 1, 31008-Pamplona, Spain.
| | - Maria L Mansego
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, C/Irunlarrea 1, 31008-Pamplona, Spain.
| | - María Angeles Zulet
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, C/Irunlarrea 1, 31008-Pamplona, Spain.
| | - José Alfredo Martinez
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, C/Irunlarrea 1, 31008-Pamplona, Spain.
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Scheid JL, Carr KA, Lin H, Fletcher KD, Sucheston L, Singh PK, Salis R, Erbe RW, Faith MS, Allison DB, Epstein LH. FTO polymorphisms moderate the association of food reinforcement with energy intake. Physiol Behav 2014; 132:51-6. [PMID: 24768648 DOI: 10.1016/j.physbeh.2014.04.029] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 02/19/2014] [Accepted: 04/14/2014] [Indexed: 11/15/2022]
Abstract
Food reinforcement (RRVfood) is related to increased energy intake, cross-sectionally related to obesity, and prospectively related to weight gain. The fat mass and obesity-associated (FTO) gene is related to elevated body mass index and increased energy intake. The primary purpose of the current study was to determine whether any of 68 FTO single nucleotide polymorphisms (SNPs) or a FTO risk score moderate the association between food reinforcement and energy or macronutrient intake. Energy and macronutrient intake was measured using a laboratory ad libitum snack food consumption task in 237 adults of varying BMI. Controlling for BMI, the relative reinforcing value of reading (RRVreading) and proportion of African ancestry, RRVfood predicted 14.2% of the variance in energy intake, as well as predicted carbohydrate, fat, protein and sugar intake. In individual analyses, six FTO SNPs (rs12921970, rs9936768, rs12446047, rs7199716, rs8049933 and rs11076022, spanning approximately 251kbp) moderated the relationship between RRVfood and energy intake to predict an additional 4.9-7.4% of variance in energy intake. We created an FTO risk score based on 5 FTO SNPs (rs9939609, rs8050136, rs3751812, rs1421085, and rs1121980) that are related to BMI in multiple studies. The FTO risk score did not increase variance accounted for beyond individual FTO SNPs. rs12921970 and rs12446047 served as moderators of the relationship between RRVfood and carbohydrate, fat, protein, and sugar intake. This study shows for the first time that the relationship between RRVfood and energy intake is moderated by FTO SNPs. Research is needed to understand how these processes interact to predict energy and macronutrient intake.
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Affiliation(s)
- Jennifer L Scheid
- Department of Pediatrics, University at Buffalo, School of Medicine and Biomedical Sciences, United States
| | - Katelyn A Carr
- Department of Pediatrics, University at Buffalo, School of Medicine and Biomedical Sciences, United States
| | - Henry Lin
- Department of Pediatrics, University at Buffalo, School of Medicine and Biomedical Sciences, United States
| | - Kelly D Fletcher
- Department of Pediatrics, University at Buffalo, School of Medicine and Biomedical Sciences, United States
| | - Lara Sucheston
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, United States
| | - Prashant K Singh
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, United States
| | - Robbert Salis
- Department of Pediatrics, Niagara Falls Memorial Hospital, United States
| | - Richard W Erbe
- Department of Pediatrics, University at Buffalo, School of Medicine and Biomedical Sciences, United States
| | - Myles S Faith
- Department of Nutrition, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, United States
| | - David B Allison
- Office of Energetics and Nutrition Obesity Research Center, University of Alabama at Birmingham School of Public Health, United States
| | - Leonard H Epstein
- Department of Pediatrics, University at Buffalo, School of Medicine and Biomedical Sciences, United States.
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50
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Ooi CP, Loke SC. Bromocriptine for type 2 diabetes mellitus. Hippokratia 2013. [DOI: 10.1002/14651858.cd010319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Cheow Peng Ooi
- Faculty of Medicine and Health Sciences, Universiti Putra Malaysia; Endocrine Unit, Department of Medicine; Serdang Selangor DE Malaysia 43400
| | - Seng Cheong Loke
- Universiti Putra Malaysia; Institute of Gerontology; Serdang Selangor DE Malaysia 43400
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