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Yanagida Y, Naka I, Nakachi Y, Ikegame T, Kasai K, Kajitani N, Takebayashi M, Bundo M, Ohashi J, Iwamoto K. Development of a method for the imputation of the multi-allelic serotonin-transporter-linked polymorphic region (5-HTTLPR) in the Japanese population. J Hum Genet 2024:10.1038/s10038-024-01296-9. [PMID: 39322647 DOI: 10.1038/s10038-024-01296-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2024] [Revised: 09/10/2024] [Accepted: 09/14/2024] [Indexed: 09/27/2024]
Abstract
Serotonin-transporter-linked polymorphic region (5-HTTLPR), a variable number of tandem repeats in the promoter region of serotonin transporter gene, is classified into short (S) and long (L) alleles. Initial case-control association studies claiming the risks of the S allele in depression and anxiety were not completely supported by recent studies. However, most studies, especially those on East Asian populations, have overlooked the complexity of 5-HTTLPR, which involves multiple different alleles with distinct functional properties. To address this issue, distinguishing multiple 5-HTTLPR alleles is essential. Here, using the 5-HTTLPR genotypes previously determined by exhaustive Sanger sequencing of approximately 1,500 Japanese subjects and their comprehensive SNP data, we constructed a method for 5-HTTLPR genotype imputation. We identified 28 tag SNPs for the imputation of four major 5-HTTLPR alleles, which collectively account for 97.6% of 5-HTTLPR alleles in the Japanese population. Our imputation method, achieved an accuracy of 0.872 in cross-validation, will contribute to association analysis of 5-HTTLPR in the Japanese subjects.
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Affiliation(s)
- Yutaro Yanagida
- Department of Molecular Brain Science, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Izumi Naka
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Yutaka Nakachi
- Department of Molecular Brain Science, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Tempei Ikegame
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kiyoto Kasai
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- University of Tokyo Institute for Diversity and Adaptation of Human Mind (UTIDAHM), Tokyo, Japan
- The International Research Center for Neurointelligence (WPI-IRCN), Institutes for Advanced Study (UTIAS), The University of Tokyo, Tokyo, Japan
| | - Naoto Kajitani
- Department of Neuropsychiatry, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
- Center for Metabolic Regulation of Healthy Aging, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Minoru Takebayashi
- Department of Neuropsychiatry, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Miki Bundo
- Department of Molecular Brain Science, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Jun Ohashi
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan.
| | - Kazuya Iwamoto
- Department of Molecular Brain Science, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan.
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Huang C, van Wijnen AJ, Im HJ. Serotonin Transporter (5-Hydroxytryptamine Transporter, SERT, SLC6A4) and Sodium-dependent Reuptake Inhibitors as Modulators of Pain Behaviors and Analgesic Responses. THE JOURNAL OF PAIN 2024; 25:618-631. [PMID: 37852405 DOI: 10.1016/j.jpain.2023.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 10/10/2023] [Accepted: 10/12/2023] [Indexed: 10/20/2023]
Abstract
The serotonin transporter (5-hydroxytryptamine transporter [5-HTT], Serotonin Transporter (SERT), SLC6A4) modulates the activity of serotonin via sodium-dependent reuptake. Given the established importance of serotonin in the control of pain, 5-HTT has received much interest in studies of pain states and as a pharmacological target for serotonin reuptake inhibitors (SRIs). Animal models expressing varying levels of 5-HTT activity show marked differences in pain behaviors and analgesic responses, as well as many serotonin-related physiological effects. In humans, functional nucleotide variations in the SLC6A4 gene, which encodes the serotonin transporter 5-HTT, are associated with certain pathologic pain conditions and differences in responses to pharmacological therapy. These findings collectively reflect the importance of 5-HTT in the intricate physiology and management of pain, as well as the scientific and clinical challenges that need to be considered for the optimization of 5-HTT-related analgesic therapies. PERSPECTIVE: The serotonin transporter 5-HTT/SCL6A4 is sensitive to pharmacological SRIs. Experimental studies on the physiological functions of serotonin, as well as genetic mouse models and clinical phenotype/genotype correlations of nucleotide variation in the human 5-HTT/SCL6A4 gene, provide new insights for the use of SRIs in chronic pain management.
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Affiliation(s)
- Cary Huang
- Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, Illinois; Department of Anesthesiology, NewYork-Presbyterian/Weill Cornell Medical Center, New York, New York.
| | - Andre J van Wijnen
- Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, Illinois; Department of Biochemistry, University of Vermont, Burlington, Vermont.
| | - Hee-Jeong Im
- Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, Illinois; Jesse Brown Veterans Affairs Medical Center (JBVAMC), Chicago, Illinois.
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Sreeja V, Jose A, Patel S, Menon B, Athira KV, Chakravarty S. Pharmacogenetics of selective serotonin reuptake inhibitors (SSRI): A serotonin reuptake transporter (SERT)-based approach. Neurochem Int 2024; 173:105672. [PMID: 38157886 DOI: 10.1016/j.neuint.2023.105672] [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: 10/25/2023] [Revised: 12/12/2023] [Accepted: 12/27/2023] [Indexed: 01/03/2024]
Abstract
Neuropsychiatric disorders are considered to be the most common cause of disability worldwide. Serotonin and its transporter is a prominent paradigm in mood disorders. Response to selective serotonin reuptake inhibitors (SSRI) is altered due to heterogeneity in the serotonin transporter gene, SLC6A4 (solute carrier family 6 member 4). The reported polymorphisms are found to be in different regions of the transporter gene: promoter region (5-HTTLPR and various single nucleotide polymorphisms within it), intron (STin2), and exon 9 (I425V). The long and short alleles of the 5-HTTLPR gene, which are prevalent among variations, may mediate differential effects. In long allelic variant carriers, an increased response to SSRI and timely recovery is due to increased availability of SERT. Whereas, SERT availability is significantly decreased in short allelic carriers, necessitating a reduction in SSRI dosage due to the increased risk of adverse drug reactions. Thus, pharmacogenetic investigations are required to understand the impact of functional variations on the efficacy and tolerability of SSRI. Identifying the carrier variants may aid in clear-decision making of the treatment regimen, aiding the approach of personalized medication.
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Affiliation(s)
- V Sreeja
- Department of Pharmacology, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi, 682 041, Kerala, India
| | - Anju Jose
- Department of Pharmacology, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi, 682 041, Kerala, India
| | - Shashikant Patel
- Applied Biology Division, CSIR- Indian Institute of Chemical Technology, Tarnaka, Uppal Road, Hyderabad, 500007, Telangana, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Bindu Menon
- Department of Psychiatry, Amrita School of Medicine, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi, 682 041, Kerala, India
| | - K V Athira
- Department of Pharmacology, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi, 682 041, Kerala, India.
| | - Sumana Chakravarty
- Applied Biology Division, CSIR- Indian Institute of Chemical Technology, Tarnaka, Uppal Road, Hyderabad, 500007, Telangana, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India.
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4
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Patel S, Sivananthan M. Hypersensitivity to Psychotropic Medications in a Patient With 17q12 Microdeletion Syndrome: A Case Report. J Clin Psychopharmacol 2024; 44:69-71. [PMID: 38032074 DOI: 10.1097/jcp.0000000000001797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
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Zusman EZ, Chau CMY, Bone JN, Hookenson K, Brain U, Glier MB, Grunau RE, Weinberg J, Devlin AM, Oberlander TF. Prenatal serotonin reuptake inhibitor antidepressant exposure, SLC6A4 genetic variations, and cortisol activity in 6-year-old children of depressed mothers: A cohort study. Dev Psychobiol 2023; 65:e22425. [PMID: 37860904 DOI: 10.1002/dev.22425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 08/17/2023] [Accepted: 08/21/2023] [Indexed: 10/21/2023]
Abstract
Prenatal exposure to maternal depression and serotonin reuptake inhibitor (SRI) antidepressants both affect the development of the hypothalamic-pituitary-adrenal (HPA) system, possibly via the neurotransmitter serotonin (5HT). In a community cohort, we investigated the impact of two factors that shape prenatal 5HT signaling (prenatal SRI [pSRI] exposure and child SLC6A4 genotype) on HPA activity at age 6 years. Generalized estimating equation (GEE) models were used to study associations between cortisol reactivity, pSRI exposure, and child SLC6A4 genotype, controlling for maternal depression, child age, and sex (48 pSRI exposed, 74 nonexposed). Salivary cortisol levels were obtained at five time points during a laboratory stress challenge: arrival at the laboratory, following two sequential developmental assessments, and then 20 and 40 min following the onset of a stress-inducing cognitive/social task. Cortisol decreased from arrival across both developmental assessments, and then increased across both time points following the stress challenge in both groups. pSRI-exposed children had lower cortisol levels across all time points. In a separate GEE model, we observed a lower cortisol stress response among children with LG /S alleles compared with children with La/La alleles, and this was particularly evident among children of mothers reporting greater third trimester depressed mood. Our findings suggest that pSRI exposure and a genetic factor associated with modulating 5HT signaling shaped HPA reactivity to a laboratory stress challenge at school age.
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Affiliation(s)
- Enav Z Zusman
- BC Children's Hospital Research Institute, Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Cecil M Y Chau
- BC Children's Hospital Research Institute, Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jeffrey N Bone
- Biostatistics, Clinical Research Support Unit, BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - Kaia Hookenson
- BC Children's Hospital Research Institute, Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Ursula Brain
- BC Children's Hospital Research Institute, Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Melissa B Glier
- BC Children's Hospital Research Institute, Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Ruth E Grunau
- BC Children's Hospital Research Institute, Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Joanne Weinberg
- Department of Cellular & Physiological Sciences, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Angela M Devlin
- BC Children's Hospital Research Institute, Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Tim F Oberlander
- BC Children's Hospital Research Institute, Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
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Sivaramakrishnan S, Venkatesan V, Paranthaman SK, Sathianathan R, Raghavan S, Pradhan P. Impact of Serotonin Pathway Gene Polymorphisms and Serotonin Levels in Suicidal Behavior. Med Princ Pract 2023; 32:000534069. [PMID: 37717578 PMCID: PMC10659705 DOI: 10.1159/000534069] [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] [Received: 12/20/2022] [Accepted: 09/10/2023] [Indexed: 09/19/2023] Open
Abstract
OBJECTIVE Suicide is a significant public health issue and a major cause of death in all ages worldwide. Previous studies have shown the involvement of genetics in suicidal behaviour. This study aimed to assess the role of the genetic variants of the serotonin transporter genes (5HTTLPR, SLC6A4 intron 2) and receptor gene (5HTR2AT102C) in individuals who died of suicide. The study compares the serum levels of serotonin between the cases and controls. METHODS We conducted a case control study with 120 cases and 126 controls. Socio-economic details of the subjects were collected using a semi-structured proforma and psychological autopsy was used to collect details of medical and other clinical conditions. Blood was drawn after taking informed consent and serum levels of serotonin were estimated by ELISA. Genotyping was performed using appropriate primers followed by polymerase chain reaction (PCR) and a restriction fragment length polymorphism (RFLP). RESULTS Mean age was 32.59 ± 12.58 for cases and 33.64 ± 9.78 for controls. The risk associated LL genotype of 5HTTLPR was higher among cases. The heterozygous 12/10 genotype of SLC6A4 intron 2 polymorphism was increased among controls. Serum levels of serotonin were lower among cases. Variant genotypes of all the 3 polymorphisms showed significant interaction (OR= 39.26) indicating that this model may increase suicidal tendency. CONCLUSION The findings of this study suggest that low serum levels of serotonin and two variants of the serotonin gene may influence suicide behaviour in a south Indian population.
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Affiliation(s)
- Sneha Sivaramakrishnan
- Department of Forensic Medicine and Toxicology, Sri Ramachandra Medical College and Research Institute, Chennai, India
| | - Vettriselvi Venkatesan
- Department of Human Genetics, Sri Ramachandra Institute of Higher Education and Research, Chennai, India
| | | | - Ramanathan Sathianathan
- Department of Psychiatry, Sri Ramachandra Institute of Higher Studies and Research, Chennai, India
| | - Swetha Raghavan
- Department of Psychiatry, Institute of Mental Health, Chennai, India
| | - Priyadarshee Pradhan
- Department of Forensic Medicine and Toxicology, Sri Ramachandra Medical College and Research Institute, Chennai, India
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7
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Simonyte S, Grabauskyte I, Macijauskiene J, Lesauskaite V, Lesauskaite V, Kvaal KS, Stewart R. Associations of the serotonin transporter gene polymorphism, 5-HTTLPR, and adverse life events with late life depression in the elderly Lithuanian population. Sci Rep 2023; 13:12920. [PMID: 37558806 PMCID: PMC10412533 DOI: 10.1038/s41598-023-40215-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 08/07/2023] [Indexed: 08/11/2023] Open
Abstract
Late-life depression (LLD) is a multifactorial disorder, with susceptibility and vulnerability potentially influenced by gene-environment interaction. The aim of this study was to investigate whether the 5-HTTLPR polymorphism is associated with LLD. The sample of 353 participants aged 65 years and over was randomly selected from the list of Kaunas city inhabitants by Residents' Register Service of Lithuania. Depressive symptoms were ascertained using the EURO-D scale. The List of Threatening Events Questionnaire was used to identify stressful life events that happened over the last 6 months and during lifetime. A 5-HTTLPR and lifetime stressful events interaction was indicated by higher odds of depression in those with s/s genotype who experienced high stress compared to l/l carriers with low or medium stress, while 5-HTTLPR and current stressful events interaction analysis revealed that carriers of either one or two copies of the s allele had increased odds of depressive symptoms associated with stress compared to participants with the l/l genotype not exposed to stressful situations. Although no significant direct association was found between the 5-HTTLPR short allele and depression, our findings demonstrated that lifetime or current stressful life events and their modification by 5-HTTLPR genotype are risk factors for late-life depression.
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Affiliation(s)
- Sandrita Simonyte
- Institute of Cardiology of Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania.
| | - Ingrida Grabauskyte
- Department of Physics, Mathematics and Biophysics of Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Jurate Macijauskiene
- Department of Geriatrics of Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Vita Lesauskaite
- Department of Geriatrics of Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Vaiva Lesauskaite
- Institute of Cardiology of Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Kari Sofie Kvaal
- Faculty of Social and Health Sciences, Inland Norway University of Applied Sciences, Lillehammer, Innlandet, Norway
| | - Robert Stewart
- King's College London (Institute of Psychiatry, Psychology and Neuroscience), London, UK
- South London and Maudsley NHS Foundation Trust, London, UK
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Pawlowski T, Malyszczak K, Pawlak D, Inglot M, Zalewska M, Grzywacz A, Radkowski M, Laskus T, Janocha-Litwin J, Frydecka D. HTR1A, TPH2, and 5-HTTLPR Polymorphisms and Their Impact on the Severity of Depressive Symptoms and on the Concentration of Tryptophan Catabolites during Hepatitis C Treatment with Pegylated Interferon-α2a and Oral Ribavirin (PEG-IFN-α2a/RBV). Cells 2023; 12:cells12060970. [PMID: 36980311 PMCID: PMC10046909 DOI: 10.3390/cells12060970] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 03/17/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
BACKGROUND Seeing that there are no data about associations between serotonin gene polymorphism and tryptophan catabolite concentration during PEG-IFN-α2a treatment, the aim of the current study is to examine (a) the associations between polymorphisms within the HTR1A, TPH2, and 5-HTT genes and the severity of depression symptoms and (b) the relationships among rs6295, rs4570625, and 5-HTTLPR rs25531polymorphisms and indoleamine 2,3-dioxygenase (IDO) activity, as well as kynurenine (KYN), tryptophan (TRP), kynurenic acid (KA), and anthranilic acid (AA) concentrations. MATERIALS AND METHODS The study followed a prospective, longitudinal, single-center cohort design. The severity of the depressive symptoms of 101 adult patients with chronic HCV infections was measured during PEG-IFN-α2a/RBV treatment. We used the Montgomery-Åsberg Depression Rating Scale (MADRS) to assess the severity of depressive symptoms. The subjects were evaluated six times-at baseline and at weeks 2, 4, 8, 12, and 24. At all the time points, MADRS score, as well as KYN, TRP, KA, and AA concentrations, and IDO activity were measured. At baseline, rs6295, rs4570625, and 5-HTTLPR rs25531polymorphisms were assessed. RESULTS Subjects with C/C genotypes of 5-HT1A and lower-expressing alleles (S/S, LG/LG, and S/LG) of 5-HTTLPR scored the highest total MADRS scores and recorded the highest increase in MADRS scores during treatment. We found associations between TRP concentrations and the TPH-2 and 5-HTTLPR rs25531 genotypes. CONCLUSIONS Our findings provide new data that we believe can help better understand infection-induced depression as a distinct type of depression.
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Affiliation(s)
- Tomasz Pawlowski
- Department of Psychiatry, Wrocław Medical University, 50-367 Wrocław, Poland
| | | | - Dariusz Pawlak
- Department of Pharmacodynamics, Medical University of Bialystok, 15-089 Białystok, Poland
| | - Małgorzata Inglot
- Department of Infectious Diseases, Liver Diseases and Acquired Immune Deficiency, Wroclaw Medical University, 50-367 Wrocław, Poland
| | - Małgorzata Zalewska
- Department of Infectious Diseases, Liver Diseases and Acquired Immune Deficiency, Wroclaw Medical University, 50-367 Wrocław, Poland
| | - Anna Grzywacz
- Independent Laboratory of Health Promotion, Pomeranian Medical University in Szczecin, 70-111 Szczecin, Poland
| | - Marek Radkowski
- Department of Immunopathology of Infectious and Parasitic Diseases, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Tomasz Laskus
- Department of Adult Infectious Diseases, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Justyna Janocha-Litwin
- Department of Infectious Diseases and Hepatology, Wroclaw Medical University, 50-367 Wroclaw, Poland
| | - Dorota Frydecka
- Department of Psychiatry, Wrocław Medical University, 50-367 Wrocław, Poland
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Gafarov VV, Gromova EA, Gagulin IV, Panov DO, Maksimov VN, Gubina MA, Gafarova AV. Association of sleep disorders with various polymorphic variants of the 5-HTTLPR SNP rs25531 A>G gene in people aged 25–44. NEUROLOGY, NEUROPSYCHIATRY, PSYCHOSOMATICS 2023. [DOI: 10.14412/2074-2711-2023-1-43-49] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Affiliation(s)
- V. V. Gafarov
- Scientific Research Institute for Therapy and Preventive Medicine, Federal Research Center Institute of Cytology and Genetics, Russian Academy of Sciences; Interdepartmental Laboratory of Epidemiology of Cardiovascular Diseases
| | - E. A. Gromova
- Scientific Research Institute for Therapy and Preventive Medicine, Federal Research Center Institute of Cytology and Genetics, Russian Academy of Sciences; Interdepartmental Laboratory of Epidemiology of Cardiovascular Diseases
| | - I. V. Gagulin
- Scientific Research Institute for Therapy and Preventive Medicine, Federal Research Center Institute of Cytology and Genetics, Russian Academy of Sciences; Interdepartmental Laboratory of Epidemiology of Cardiovascular Diseases
| | - D. O. Panov
- Scientific Research Institute for Therapy and Preventive Medicine, Federal Research Center Institute of Cytology and Genetics, Russian Academy of Sciences; Interdepartmental Laboratory of Epidemiology of Cardiovascular Diseases
| | - V. N. Maksimov
- Scientific Research Institute for Therapy and Preventive Medicine, Federal Research Center Institute of Cytology and Genetics, Russian Academy of Sciences
| | - M. A. Gubina
- Scientific Research Institute for Therapy and Preventive Medicine, Federal Research Center Institute of Cytology and Genetics, Russian Academy of Sciences
| | - A. V. Gafarova
- Scientific Research Institute for Therapy and Preventive Medicine, Federal Research Center Institute of Cytology and Genetics, Russian Academy of Sciences; Interdepartmental Laboratory of Epidemiology of Cardiovascular Diseases
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Timmers ER, Plösch T, Smit M, Hof IH, Verkaik-Schakel RN, Tijssen MAJ, de Koning TJ, Niezen-Koning KE. Methylation of the serotonin reuptake transporter gene and non-motor symptoms in dystonia patients. Clin Epigenetics 2022; 14:170. [PMID: 36503539 PMCID: PMC9743677 DOI: 10.1186/s13148-022-01384-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 11/21/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Dystonia is a rare movement disorder, in which patients suffer from involuntary twisting movements or abnormal posturing. Next to these motor symptoms, patients have a high prevalence of psychiatric comorbidity, suggesting a role for serotonin in its pathophysiology. This study investigates the percentage of DNA methylation of the gene encoding for the serotonin reuptake transporter (SLC6A4) in dystonia patients and the associations between methylation levels and presence and severity of psychiatric symptoms. METHODS Patients with cervical dystonia (n = 49), myoclonus dystonia (n = 41) and dopa-responsive dystonia (DRD) (n = 27) and a group of healthy controls (n = 56) were included. Psychiatric comorbidity was evaluated with validated questionnaires. Methylation levels of 20 CpG sites situated 69 to 213 base pairs upstream of the start codon of SLC6A4 were investigated. Methylation in dystonia patients was compared to healthy controls, correcting for age, and correlated with psychiatric comorbidity. RESULTS Bootstrapped quantile regression analysis showed that being a dystonia patient compared to a healthy control significantly explains the methylation level at two CpG sites (CpG 24: pseudo-R2 = 0.05, p = 0.04, CpG 32: pseudo-R2 = 0.14, p = 0.03). Subgroup analysis revealed that being a DRD patient significantly explained a part of the variance of methylation levels at two CpG sites (CpG 21: pseudo-R2 = 0.03, p = 0.00, CpG 24: pseudo-R2 = 0.06, p = 0.03). Regression analysis showed that methylation level at CpG 38 significantly explained a small proportion of the variance of severity score for anxiety (R2 = 0.07, p = 0.04) and having a diagnosis of depression (Nagelkerke R2: 0.11, p = 0.00). Genotype of the 5-HTTLPR polymorphism had no additional effect on these associations. CONCLUSIONS This study showed an association between percentage of methylation at several specific sites of the promoter region of SLCA64 and (dopa-responsive) dystonia patients compared to healthy controls. Furthermore, methylation levels were associated with severity of anxiety and presence of a depressive disorder in the dystonia group. This study suggests alterations in the serotonergic metabolism in dystonia patients, and its relation with the non-motor symptoms.
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Affiliation(s)
- Elze R. Timmers
- grid.4830.f0000 0004 0407 1981Department of Neurology, University Medical Center Groningen, University of Groningen, PO Box 30.001, 9700 RB Groningen, The Netherlands ,grid.4494.d0000 0000 9558 4598Expertise Center Movement Disorders Groningen, University Medical Center Groningen (UMCG), PO Box 30.001, 9700 RB Groningen, The Netherlands
| | - Torsten Plösch
- grid.4830.f0000 0004 0407 1981Department of Obstetrics and Gynecology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Marenka Smit
- grid.4830.f0000 0004 0407 1981Department of Neurology, University Medical Center Groningen, University of Groningen, PO Box 30.001, 9700 RB Groningen, The Netherlands ,grid.4494.d0000 0000 9558 4598Expertise Center Movement Disorders Groningen, University Medical Center Groningen (UMCG), PO Box 30.001, 9700 RB Groningen, The Netherlands
| | - Ingrid H. Hof
- grid.4494.d0000 0000 9558 4598Laboratory of Metabolic Diseases, Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, PO Box 30.001, 9700 RB Groningen, The Netherlands
| | - Rikst Nynke Verkaik-Schakel
- grid.4830.f0000 0004 0407 1981Department of Obstetrics and Gynecology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Marina A. J. Tijssen
- grid.4830.f0000 0004 0407 1981Department of Neurology, University Medical Center Groningen, University of Groningen, PO Box 30.001, 9700 RB Groningen, The Netherlands ,grid.4494.d0000 0000 9558 4598Expertise Center Movement Disorders Groningen, University Medical Center Groningen (UMCG), PO Box 30.001, 9700 RB Groningen, The Netherlands
| | - Tom J. de Koning
- grid.4494.d0000 0000 9558 4598Expertise Center Movement Disorders Groningen, University Medical Center Groningen (UMCG), PO Box 30.001, 9700 RB Groningen, The Netherlands ,grid.4514.40000 0001 0930 2361Pediatrics, Department of Clinical Sciences, Lund University, Box 117, 221 00 Lund, Sweden
| | - Klary E. Niezen-Koning
- grid.4494.d0000 0000 9558 4598Expertise Center Movement Disorders Groningen, University Medical Center Groningen (UMCG), PO Box 30.001, 9700 RB Groningen, The Netherlands ,grid.4494.d0000 0000 9558 4598Laboratory of Metabolic Diseases, Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, PO Box 30.001, 9700 RB Groningen, The Netherlands
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González Delgado S, Garza-Veloz I, Trejo-Vazquez F, Martinez-Fierro ML. Interplay between Serotonin, Immune Response, and Intestinal Dysbiosis in Inflammatory Bowel Disease. Int J Mol Sci 2022; 23:ijms232415632. [PMID: 36555276 PMCID: PMC9779345 DOI: 10.3390/ijms232415632] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022] Open
Abstract
Inflammatory Bowel Disease (IBD) is a chronic gastrointestinal disorder characterized by periods of activity and remission. IBD includes Crohn's disease (CD) and ulcerative colitis (UC), and even though IBD has not been considered as a heritable disease, there are genetic variants associated with increased risk for the disease. 5-Hydroxytriptamine (5-HT), or serotonin, exerts a wide range of gastrointestinal effects under both normal and pathological conditions. Furthermore, Serotonin Transporter (SERT) coded by Solute Carrier Family 6 Member 4 (SLC6A4) gene (located in the 17q11.1-q12 chromosome), possesses genetic variants, such as Serotonin Transporter Gene Variable Number Tandem Repeat in Intron 2 (STin2-VNTR) and Serotonin-Transporter-linked promoter region (5-HTTLPR), which have an influence over the functionality of SERT in the re-uptake and bioavailability of serotonin. The intestinal microbiota is a crucial actor in normal human gut physiology, exerting effects on serotonin, SERT function, and inflammatory processes. As a consequence of abnormal serotonin signaling and SERT function under these inflammatory processes, the use of selective serotonin re-uptake inhibitors (SSRIs) has been seen to improve disease activity and extraintestinal manifestations, such as depression and anxiety. The aim of this study is to integrate scientific data linking the intestinal microbiota as a regulator of gut serotonin signaling and re-uptake, as well as its role in the pathogenesis of IBD. We performed a narrative review, including a literature search in the PubMed database of both review and original articles (no date restriction), as well as information about the SLC6A4 gene and its genetic variants obtained from the Ensembl website. Scientific evidence from in vitro, in vivo, and clinical trials regarding the use of selective serotonin reuptake inhibitors as an adjuvant therapy in patients with IBD is also discussed. A total of 194 articles were used between reviews, in vivo, in vitro studies, and clinical trials.
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12
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Zhang Y, Yao S, Schmitt H, Becker B, Kendrick KM, Montag C. Molecular genetic associations between a prominent serotonin transporter gene polymorphism (5-HTTLPR/rs25531) and individual differences in tendencies toward autistic traits and generalized internet use disorder in China and Germany. Brain Behav 2022; 12:e2747. [PMID: 36106519 PMCID: PMC9575603 DOI: 10.1002/brb3.2747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 07/18/2022] [Accepted: 08/03/2022] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND The serotonin transporter polymorphism 5-HTTLPR is an extensively investigated genetic marker of autistic traits or autism spectrum disorder, and recently has also been studied in the realm of internet use disorder (IUD), yet the findings remain controversial. Therefore, the present study aimed to explore associations between 5-HTTLPR (also including SNP rs25531) and autistic traits/IUD tendencies and to assess whether the relationship between autistic traits and IUD tendencies varies by this genetic marker in participants from China and Germany. METHODS A total of 540 Chinese and 563 German subjects were genotyped for 5-HTTLPR/rs25531 and completed the Adult Autism Spectrum Quotient questionnaire and the short version of the Internet Addiction Test. RESULTS Carriers of the low expressing S'S' genotype (S, LG ) showed significantly higher levels of autistic traits than the high expressing allele (e.g. LA ) carriers in both samples. There was no significant effect of 5-HTTLPR/rs25531 on IUD either in the Chinese or Germany samples, whereas positive correlations between autistic traits and IUD varied by 5-HTTLPR/rs25531 genotypes and also differed between Chinese and German samples. In the Chinese sample, positive correlations were mainly driven by S'S' and S'L' carriers, while they were mainly determined by S'L' and L'L' carriers in the German sample. Further analyses revealed that the associations between autistic traits and IUD tended in parts to be more strongly pronounced in the complete German sample compared to the complete Chinese sample, and also varied depending on 5-HTTLPR/rs25531 genotypes (in S'S' carriers: China > Germany; in S'L' and L'L' carriers: China < Germany; both in terms of more positive associations). CONCLUSIONS Our findings suggest carriers of low expressing alleles (S, LG ) are more likely to show higher autistic traits in both Chinese and German samples. Furthermore, the present work shows that both 5-HTTLPR/rs25531 and cultural differences might be of relevance to understand associations between autistic traits and IUD tendencies, but this needs to be further backed up.
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Affiliation(s)
- YingYing Zhang
- Department of Molecular Psychology, Institute of Psychology and Education, Ulm University, Ulm, Germany
| | - Shuxia Yao
- The Clinical Hospital of Chengdu Brain Science Institute, Ministry of Education Key Lab for Neuroinformation, University of Electronic Science and Technology of China, Chengdu, China
| | - Helena Schmitt
- Department of Molecular Psychology, Institute of Psychology and Education, Ulm University, Ulm, Germany
| | - Benjamin Becker
- The Clinical Hospital of Chengdu Brain Science Institute, Ministry of Education Key Lab for Neuroinformation, University of Electronic Science and Technology of China, Chengdu, China
| | - Keith M Kendrick
- The Clinical Hospital of Chengdu Brain Science Institute, Ministry of Education Key Lab for Neuroinformation, University of Electronic Science and Technology of China, Chengdu, China
| | - Christian Montag
- Department of Molecular Psychology, Institute of Psychology and Education, Ulm University, Ulm, Germany.,The Clinical Hospital of Chengdu Brain Science Institute, Ministry of Education Key Lab for Neuroinformation, University of Electronic Science and Technology of China, Chengdu, China
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13
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Pappula AL, Gibson LN, Bouley RA, Petreaca RC. In silico analysis of a SLC6A4 G100V mutation in lung cancers. MICROPUBLICATION BIOLOGY 2022; 2022:10.17912/micropub.biology.000645. [PMID: 36247322 PMCID: PMC9554669 DOI: 10.17912/micropub.biology.000645] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/26/2022] [Accepted: 09/26/2022] [Indexed: 11/16/2022]
Abstract
SLC6A4 is a serotonin re-uptake transporter which has been a target for anti-depressant therapies but recently some mutations have been described in cancer cells. Here, we characterize mutations in SLC6A4 that appear in cancer cells. We employed several validated computational and artificial intelligence algorithms to characterize the mutations. We identified a previously uncharacterized G100V mutation in lung cancers. In sillico structural analysis reveals that this mutation may affect SLC6A4 ligand binding and subsequently its function. We also identified several other mutations that may affect the structure of the protein. This preliminary analysis highlights the role of SLC6A4 in human cancers.
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Affiliation(s)
| | | | | | - Ruben C Petreaca
- The Ohio State University
,
Correspondence to: Ruben C Petreaca (
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14
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Wilkinson A, Swann A, Graham D, Patriquin M, Salas R, Nielsen D, Kosten T. Emotional self-regulation, impulsivity, 5-HTTLPR and tobacco use behavior among psychiatric inpatients. J Affect Disord 2022; 311:631-636. [PMID: 35623482 PMCID: PMC9842073 DOI: 10.1016/j.jad.2022.05.114] [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] [Received: 01/18/2022] [Revised: 05/11/2022] [Accepted: 05/19/2022] [Indexed: 01/18/2023]
Abstract
BACKGROUND While the serotonin transporter (SLC6A4) gene, 5-HTTLPR, interacts with the social environment to influence both emotional self-regulation and smoking behavior, less is known about interactions between emotional self-regulation and 5-HTTLPR or their joint influence on tobacco use. Here, we examined such interactions among psychiatric inpatients, the population with the highest rates of smoking. METHODS Participants (506 adults) were psychiatric inpatients at The Menninger Clinic in Houston TX between 2012 and 16. Most were white (89%), male (55%), with a mean age of 32.3 years. Participants completed the Difficulties in Emotional Regulation Scale (DERS) at admission. We examined interactions with smoking among three DERS subscales and 5-HTTLPR, controlling for sex, race and age. RESULTS Smoking rates were higher among those with the 5-HTTPLR L'L' genotype compared to peers carrying an S' allele (47.9% vs. 37.4%, respectively). Among S' allele carrying participants, impulse control difficulties (OR = 1.09; 95%CI: 1.03-1.14) and lack of emotion clarity (OR = 1.06; 95%CI: 1.00-1.11) increased risk for ever using tobacco, while accessing more ways to regulate emotion (OR = 0.95; 95%CI: 0.92-0.99) offered a protective effect against ever using tobacco. Neither demographic nor DERS covariates were associated with using tobacco among the L'L' group. LIMITATIONS This ethnically homogenous sample limits generalizability and using a binary outcome can over-estimate a gene environment interaction effect. CONCLUSIONS Emotional self-regulation exerts a stronger influence on using tobacco among carriers of an S' allele of 5-HTTLPR than peers with the L'L' genotype. Promoting emotional self-regulatory skills may have benefits for preventing tobacco use.
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Affiliation(s)
- A.V. Wilkinson
- UTHealth School of Public Health in Austin, Austin, TX, United States of America,Corresponding author. (A.V. Wilkinson)
| | - A.C. Swann
- Michael E. DeBakey VA Medical Center, Houston, TX, United States of America,Department of Psychiatry, Baylor College of Medicine, Houston, TX, United States of America
| | - D.P. Graham
- Michael E. DeBakey VA Medical Center, Houston, TX, United States of America,Department of Psychiatry, Baylor College of Medicine, Houston, TX, United States of America
| | - M.A. Patriquin
- Michael E. DeBakey VA Medical Center, Houston, TX, United States of America,Department of Psychiatry, Baylor College of Medicine, Houston, TX, United States of America,The Menninger Clinic, Houston, TX, United States of America
| | - R. Salas
- Michael E. DeBakey VA Medical Center, Houston, TX, United States of America,Department of Psychiatry, Baylor College of Medicine, Houston, TX, United States of America,The Menninger Clinic, Houston, TX, United States of America
| | - D.A. Nielsen
- Michael E. DeBakey VA Medical Center, Houston, TX, United States of America
| | - T.R. Kosten
- Michael E. DeBakey VA Medical Center, Houston, TX, United States of America,Department of Psychiatry, Baylor College of Medicine, Houston, TX, United States of America
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15
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Serotonergic system in vivo with [ 11C]DASB PET scans in GTP-cyclohydrolase deficient dopa-responsive dystonia patients. Sci Rep 2022; 12:6292. [PMID: 35428769 PMCID: PMC9012759 DOI: 10.1038/s41598-022-10067-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 03/15/2022] [Indexed: 11/23/2022] Open
Abstract
GTP-cyclohydrolase deficiency in dopa-responsive dystonia (DRD) patients impairs the biosynthesis of dopamine, but also of serotonin. The high prevalence of non-motor symptoms suggests involvement of the serotonergic pathway. Our study aimed to investigate the serotonergic system in vivo in the brain of`DRD patients and correlate this to (non-)motor symptoms. Dynamic [11C]DASB PET scans, a marker of serotonin transporter availability, were performed. Ten DRD, 14 cervical dystonia patients and 12 controls were included. Univariate- and network-analysis did not show differences in binding between DRD patients compared to controls. Sleep disturbances were correlated with binding in the dorsal raphe nucleus (all participants: rs = 0.45, p = 0.04; patients: rs = 0.64, p = 0.05) and participants with a psychiatric disorder had a lower binding in the hippocampus (all participants: p = 0.00; patients: p = 0.06). Post-hoc analysis with correction for psychiatric co-morbidity showed a significant difference in binding in the hippocampus between DRD patients and controls (p = 0.00). This suggests that psychiatric symptoms might mask the altered serotonergic metabolism in DRD patients, but definite conclusions are difficult as psychiatry is considered part of the phenotype. We hypothesize that an imbalance between different neurotransmitter systems is responsible for the non-motor symptoms, and further research investigating multiple neurotransmitters and psychiatry in DRD is necessary.
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16
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Landoni M, Missaglia S, Tavian D, Ionio C, Di Blasio P. Influence of 5-HTTLPR polymorphism on postpartum depressive and posttraumatic symptoms. Psychiatr Genet 2022; 32:9-14. [PMID: 34694246 PMCID: PMC9904440 DOI: 10.1097/ypg.0000000000000299] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 07/26/2021] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Postpartum depression (PPD) is a multifactor disorder caused by psychological, social, and also biological factors. 5-HTTLPR polymorphism in the promoter region of serotonin transporter gene seems to influence PPD onset. In this study, we examined the effect of 5-HTTLPR polymorphism on prenatal and postnatal symptoms of depression and posttraumatic stress in women. METHODS A longitudinal design with three points - time 1 (32-40 weeks gestation); time 2 (2 or 3 weeks after birth), and time 3 (3 months after birth) - was made. A total of 141 women were recruited during childbirth preparation courses. At time 1, women completed the Beck Depression Inventory (BDI) and the Los Angeles Symptoms Checklist (LASC). At time 2, they fulfilled BDI and Edinburgh Postnatal Depression Scale (EDPS), LASC and the Perinatal Posttraumatic stress disorder (PTSD) Questionnaire (PPQ); midwives and nurses collected biological test tubes by blood sampling for the genetic analysis. At time 3, the women were reassessed for BDI, LASC, EDPS, and PPQs. Analysis of variance and moderation analysis were used to correlate genotype and psychological investigations. RESULTS Results showed that, compared with LL/LS genotypes, SS genotype moderated cognitive depressive symptoms onset at T2 and T3. Moreover, this genotype correlated, directly or indirectly, with PTSD postpartum aspects (re-experience, avoidance, and hyperarousal). DISCUSSION Findings revealed that a lower expression of serotonin transporter gene, associated with SS genotype, seems to render women more vulnerable to depressive and PTSD symptoms after childbirth.
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Affiliation(s)
| | - Sara Missaglia
- Psychology Department
- Laboratory of Cellular Biochemistry and Molecular Biology, CRIBENS, Università Cattolica del Sacro Cuore, Milan, Italy
| | - Daniela Tavian
- Psychology Department
- Laboratory of Cellular Biochemistry and Molecular Biology, CRIBENS, Università Cattolica del Sacro Cuore, Milan, Italy
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Rasheed M, Asghar R, Firdoos S, Ahmad N, Nazir A, Ullah KM, Li N, Zhuang F, Chen Z, Deng Y. A Systematic Review of Circulatory microRNAs in Major Depressive Disorder: Potential Biomarkers for Disease Prognosis. Int J Mol Sci 2022; 23:1294. [PMID: 35163214 PMCID: PMC8835958 DOI: 10.3390/ijms23031294] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/17/2022] [Accepted: 01/20/2022] [Indexed: 02/04/2023] Open
Abstract
Major depressive disorder (MDD) is a neuropsychiatric disorder, which remains challenging to diagnose and manage due to its complex endophenotype. In this aspect, circulatory microRNAs (cimiRNAs) offer great potential as biomarkers and may provide new insights for MDD diagnosis. Therefore, we systemically reviewed the literature to explore various cimiRNAs contributing to MDD diagnosis and underlying molecular pathways. A comprehensive literature survey was conducted, employing four databases from 2012 to January 2021. Out of 1004 records, 157 reports were accessed for eligibility criteria, and 32 reports meeting our inclusion criteria were considered for in-silico analysis. This study identified 99 dysregulated cimiRNAs in MDD patients, out of which 20 cimiRNAs found in multiple reports were selected for in-silico analysis. KEGG pathway analysis indicated activation of ALS, MAPK, p53, and P13K-Akt signaling pathways, while gene ontology analysis demonstrated that most protein targets were associated with transcription. In addition, chromosomal location analysis showed clustering of dysregulated cimiRNAs at proximity 3p22-p21, 9q22.32, and 17q11.2, proposing their coregulation with specific transcription factors primarily involved in MDD physiology. Further analysis of transcription factor sites revealed the existence of HIF-1, REST, and TAL1 in most cimiRNAs. These transcription factors are proposed to target genes linked with MDD, hypothesizing that first-wave cimiRNA dysregulation may trigger the second wave of transcription-wide changes, altering the protein expressions of MDD-affected cells. Overall, this systematic review presented a list of dysregulated cimiRNAs in MDD, notably miR-24-3p, let 7a-5p, miR-26a-5p, miR135a, miR-425-3p, miR-132, miR-124 and miR-16-5p as the most prominent cimiRNAs. However, various constraints did not permit us to make firm conclusions on the clinical significance of these cimiRNAs, suggesting the need for more research on single blood compartment to identify the biomarker potential of consistently dysregulated cimiRNAs in MDD, as well as the therapeutic implications of these in-silico insights.
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Affiliation(s)
- Madiha Rasheed
- Beijing Key Laboratory for Separation and Analysis in Biomedicine and Pharmaceuticals, School of Life Sciences, Beijing Institute of Technology, Beijing 100081, China; (M.R.); (R.A.); (S.F.); (K.M.U.); (N.L.)
| | - Rabia Asghar
- Beijing Key Laboratory for Separation and Analysis in Biomedicine and Pharmaceuticals, School of Life Sciences, Beijing Institute of Technology, Beijing 100081, China; (M.R.); (R.A.); (S.F.); (K.M.U.); (N.L.)
| | - Sundas Firdoos
- Beijing Key Laboratory for Separation and Analysis in Biomedicine and Pharmaceuticals, School of Life Sciences, Beijing Institute of Technology, Beijing 100081, China; (M.R.); (R.A.); (S.F.); (K.M.U.); (N.L.)
| | - Nadeem Ahmad
- Department of Pharmacy, Abbottabad Campus, COMSATS University Islamabad, Abbottabad 22060, Pakistan;
| | - Amina Nazir
- Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan Industry North Road 202, Jinan 250100, China;
| | - Kakar Mohib Ullah
- Beijing Key Laboratory for Separation and Analysis in Biomedicine and Pharmaceuticals, School of Life Sciences, Beijing Institute of Technology, Beijing 100081, China; (M.R.); (R.A.); (S.F.); (K.M.U.); (N.L.)
| | - Noumin Li
- Beijing Key Laboratory for Separation and Analysis in Biomedicine and Pharmaceuticals, School of Life Sciences, Beijing Institute of Technology, Beijing 100081, China; (M.R.); (R.A.); (S.F.); (K.M.U.); (N.L.)
| | - Fengyuan Zhuang
- School of Biology and Medical Engineering, Beihang University, Beijing 100191, China;
| | - Zixuan Chen
- Beijing Key Laboratory for Separation and Analysis in Biomedicine and Pharmaceuticals, School of Life Sciences, Beijing Institute of Technology, Beijing 100081, China; (M.R.); (R.A.); (S.F.); (K.M.U.); (N.L.)
| | - Yulin Deng
- Beijing Key Laboratory for Separation and Analysis in Biomedicine and Pharmaceuticals, School of Life Sciences, Beijing Institute of Technology, Beijing 100081, China; (M.R.); (R.A.); (S.F.); (K.M.U.); (N.L.)
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18
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Tanahashi S, Tanii H, Konishi Y, Otowa T, Sasaki T, Tochigi M, Okazaki Y, Kaiya H, Okada M. Association of Serotonin Transporter Gene (5-HTTLPR/rs25531) Polymorphism with Comorbidities of Panic Disorder. Neuropsychobiology 2022; 80:333-341. [PMID: 33333511 DOI: 10.1159/000512699] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 10/27/2020] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Panic disorder (PD) has many comorbidities such as depression, bipolar disorder (BPD), and agoraphobia (AG). PD is a moderately heritable anxiety disorder whose pathogenesis is not well understood. Recently, a tri-allelic serotonin transporter (5-HTTLPR/rs25531) polymorphism was reported to be more sensitive to personality traits compared to the bi-allelic 5-HTTLPR polymorphism. We hypothesized that the 5-HTTLPR/rs25531 polymorphism may lead to a pathological anxious state depending on the presence or absence of a comorbidity in PD. METHODS In this study, we investigated the relationship between comorbidities in PD and tri-allelic 5-HTTLPR polymorphisms. A total of 515 patients with PD (148 males, 367 females) were genotyped, and the Revised NEO Personality Inventory as well as anxiety-related psychological tests were administered. Depression, BPD, and AG were diagnosed as comorbidities. RESULTS For the tri-allele 5-HTTLPR genotype, a significant interaction effect was found between openness to experience and comorbid depression. Examination of the interaction between AG and the tri-allelic 5-HTTLPR genotype revealed that L' allele carriers are associated with higher trait anxiety than the S'S' genotype group in PD without AG. CONCLUSION Some anxiety and personality traits can be characterized by the tri-allelic gene effect of 5-HTTLPR. These results suggest that tri-allelic 5-HTTLPR genotypes have genetic effects on the presence of comorbidities of PD.
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Affiliation(s)
- Shunsuke Tanahashi
- Division of Neuroscience, Department of Psychiatry, Graduate School of Medicine, Brain Science and Animal Model Research Center, Mie University, Tsu, Japan
| | - Hisashi Tanii
- Division of Neuroscience, Department of Psychiatry, Graduate School of Medicine, Brain Science and Animal Model Research Center, Mie University, Tsu, Japan, .,Center for Physical and Mental Health, Mie University, Tsu, Japan,
| | - Yoshiaki Konishi
- Division of Neuroscience, Department of Psychiatry, Graduate School of Medicine, Brain Science and Animal Model Research Center, Mie University, Tsu, Japan
| | - Takeshi Otowa
- Department of Neuropsychiatry, NTT Medical Center Tokyo, Tokyo, Japan
| | - Tsukasa Sasaki
- Laboratory of Health Education, Graduate School of Education, The University of Tokyo, Tokyo, Japan
| | - Mamoru Tochigi
- Department of Psychiatry, Teikyo University School of Medicine, Tokyo, Japan
| | - Yuji Okazaki
- Department of Psychiatry, Koseikai Michinoo Hospital, Nagasaki, Japan
| | - Hisanobu Kaiya
- Panic Disorder Research Center, Warakukai Medical Corporation, Tokyo, Japan
| | - Motohiro Okada
- Division of Neuroscience, Department of Psychiatry, Graduate School of Medicine, Brain Science and Animal Model Research Center, Mie University, Tsu, Japan
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Rovný R, Marko M, Minárik G, Riečanský I. Absence of a significant interaction of two common NOS1 and 5-HTT polymorphisms on sensorimotor gating in humans. Physiol Res 2021; 70:S387-S395. [PMID: 35099257 DOI: 10.33549/physiolres.934819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
The neurotransmitter serotonin has been critically implicated in the pathogenesis of several mental disorders. The serotonin transporter (5-HTT) is a key regulator of serotonergic neurotransmission and its genetic variability is associated with increased risk of psychopathology. One well known polymorphic locus in the 5-HTT gene affecting its expression is a tandem repeat in the promoter region (5-HTTLPR). It has been reported that 5-HTT is functionally coupled with the neuronal nitric oxide synthase (NOS1 or nNOS), an enzyme catalyzing the production of nitric oxide (NO). We have previously demonstrated that a tandem repeat polymorphism in the promoter of NOS1 exon 1f (Ex1f-VNTR) is associated with sensorimotor gating, a marker of inhibitory processing and a well established endophenotype of several neuropsychiatric disorders. Here we investigated the combined genetic effects of NOS1 Ex1f-VNTR and 5-HTTLPR on sensorimotor gating, measured by prepulse inhibition (PPI) of the acoustic startle reflex, in 164 healthy adults. We found no evidence for the interaction between NOS1 Ex1f-VNTR and 5-HTTLPR on PPI. PPI was associated with NOS1 Ex1f-VNTR, but not 5-HTTLPR. Our data suggest that while NOS1 plays a role in sensorimotor gating, the nitrergic pathway of gating regulation does not involve the action of 5-HTT.
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Affiliation(s)
- R Rovný
- Department of Behavioural Neuroscience, Institute of Normal and Pathological Physiology, Centre of Experimental Medicine, Slovak Academy of Sciences, Bratislava, Slovak Republic.
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20
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Jahn K, Kurz B, Sinke C, Kneer J, Riemer O, Ponseti J, Walter M, Beier KM, Walter H, Frieling H, Schiffer B, Kruger THC. Serotonin system-associated genetic and epigenetic changes in pedophilia and child sexual offending. J Psychiatr Res 2021; 145:60-69. [PMID: 34871921 DOI: 10.1016/j.jpsychires.2021.11.042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 11/19/2021] [Accepted: 11/24/2021] [Indexed: 11/23/2022]
Abstract
Numerous studies have shown associations between anomalies of the serotonergic system and impulsive behavior, depression, or traumatic life events. However, it is currently unknown, whether pedophilia or child sexual offending (CSO) is also related to alterations of the serotonergic system. Using a two by two factorial paradigm within a multisite consortium (NeMUP*) study cohort, we analyzed whether the SLC6A4-linked polymorphic region (SLC6A4LPR) or the SLC6A4 (transporter) and HTR3A (receptor) promotor methylation rates differed with regard to a pedophilic preference and/or child sexual offending. Methylation rates of HTR3A showed significant differences between child sexual offenders and non-offenders, with child sexual offenders showing lower methylation rates. Moreover, HTR3A methylation rates showed significant negative correlations with the Child Trauma Questionnaire (CTQ) subscale "sexual violence", and the number of sexual offenses committed. Interestingly, we also found pedophilia-related alterations in 5HT3A as well as SLC6A4 methylation rates. For HTR3A we detected significant higher methylation rates in subjects with a pedophilic sexual preference, whereas for SLC6A4 methylation rates were reduced, indicating a possible downregulation of the serotonergic system in total. Although there were no significant group differences concerning the SLC6A4LPR, we found a significant correlation of the SLC6A4 methylation rate with this polymorphism in pedophilia. The present study suggests an involvement of epigenetic alterations of the serotonergic system in pedophilia and child sexual offending as well as own experience of sexual violence. While such an environmental factor may account for the epigenetic changes seen in child sexual offending, this was not seen in pedophilia. These findings will hopefully inspire further research in this underinvestigated field which should aim at validating and extending these initial results.
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Affiliation(s)
- Kirsten Jahn
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Laboratory of Molecular Psychiatry, Hannover, Medical School, Hannover, Germany
| | - Bernadett Kurz
- Division of Forensic Psychiatry, Department of Psychiatry, Psychotherapy and Preventive Medicine, Ruhr University Bochum, LWL University Hospital, Bochum, Germany
| | - Christopher Sinke
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Division of Clinical Psychology and Sexual Medicine, Hannover, Medical School, Hannover, Germany
| | - Jonas Kneer
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Division of Clinical Psychology and Sexual Medicine, Hannover, Medical School, Hannover, Germany
| | - Ole Riemer
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Laboratory of Molecular Psychiatry, Hannover, Medical School, Hannover, Germany
| | - Jorge Ponseti
- Institute of Sexual Medicine and Forensic Psychiatry and Psychotherapy, Medical School, Kiel University, Kiel, Germany
| | - Martin Walter
- Department of Psychiatry and Psychotherapy, University Hospital Jena, Jena, Germany; Leibniz Institute for Neurobiology, Magdeburg, Germany
| | - Klaus M Beier
- Institute of Sexology and Sexual Medicine, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Henrik Walter
- Division of Mind and Brain Research, Department of Psychiatry and Psychotherapy, CCM, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Helge Frieling
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Laboratory of Molecular Psychiatry, Hannover, Medical School, Hannover, Germany; Center for Systems Neurosciences, Hannover, Germany
| | - Boris Schiffer
- Division of Forensic Psychiatry, Department of Psychiatry, Psychotherapy and Preventive Medicine, Ruhr University Bochum, LWL University Hospital, Bochum, Germany
| | - Tillmann H C Kruger
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Division of Clinical Psychology and Sexual Medicine, Hannover, Medical School, Hannover, Germany; Center for Systems Neurosciences, Hannover, Germany.
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Genovese TJ, Gehrman P, Yang M, Li Y, Garland SN, Orlow I, Mao JJ. Genetic Predictors of Response to Acupuncture or Cognitive Behavioral Therapy for Insomnia in Cancer Survivors: An Exploratory Analysis. J Pain Symptom Manage 2021; 62:e192-e199. [PMID: 33716034 PMCID: PMC9297333 DOI: 10.1016/j.jpainsymman.2021.03.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 02/24/2021] [Accepted: 03/04/2021] [Indexed: 11/30/2022]
Abstract
CONTEXT Insomnia is a common problem affecting cancer survivors. While effective nonpharmacological treatments are available, it is unknown whether individual genetic characteristics influence treatment response. OBJECTIVES We conducted an exploratory analysis of genetic associations with insomnia treatment response in a randomized trial of cognitive behavioral therapy for insomnia (CBT-I) vs. acupuncture in a heterogeneous group of cancer survivors. METHODS We successfully genotyped 136 participants for 11 genetic variants. Successful treatment response was defined as a reduction in Insomnia Severity Index score of at least eight points from baseline to week 8. We used Fisher exact tests to evaluate associations between genotype and treatment success for each treatment arm, for an alpha level of 0.05 with unadjusted and Holm-Bonferroni-adjusted P-values. RESULTS We found that more carriers of COMT rs4680-A alleles responded to acupuncture compared to the GG carriers (63.6% vs. 27.8%, P = 0.013). More carriers of the NFKB2 rs1056890 CC genotype also responded to acupuncture compared to TT or CT carriers (72.2% vs. 38.9%, P = 0.009). There were no significant differences found between any of the tested gene variants and CBT-I response. None of the results remained statistically significant after adjustment for multiple testing. CONCLUSION In cancer survivors, specific variants in the COMT and NFKB2 genes are potentially associated with response to acupuncture but not to CBT-I. Confirming these preliminary results will help inform precision insomnia management for cancer survivors.
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Affiliation(s)
- Timothy J Genovese
- Harvard T.H. Chan School of Public Health, Boston, MA, USA; The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Philip Gehrman
- Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, USA
| | - MingXiao Yang
- Integrative Medicine Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Yuelin Li
- Department of Psychiatry and Behavioral Sciences, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Sheila N Garland
- Departments of Psychology and Oncology, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
| | - Irene Orlow
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jun J Mao
- Integrative Medicine Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
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22
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Hollerbach P, Olderbak S, Wilhelm O, Montag C, Jung S, Neumann CS, Habermeyer E, Mokros A. Associations of the MAOA uVNTR genotype and 5-HTTLPR/rs25531 haplotype with psychopathic traits. Psychoneuroendocrinology 2021; 131:105275. [PMID: 34102427 DOI: 10.1016/j.psyneuen.2021.105275] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 04/30/2021] [Accepted: 05/13/2021] [Indexed: 12/26/2022]
Abstract
Previous studies have linked polymorphisms of the monoamine oxidase A (MAOA uVNTR) and serotonin transporter gene (5-HTTLPR) to individual differences in the expression of psychopathic traits, but findings remain inconsistent. One possible reason is that these studies have treated psychopathy as a unitary construct when there is accumulating evidence that there are variants or subtypes. We used a variable-centered and a person-centered approach by (a) examining putative genetic correlates of psychopathy across individuals and (b) comparing the frequencies of the MAOA uVNTR genotype and 5-HTTLPR/rs25531 haplotype between empirically derived subtypes of psychopathy, respectively. Notably, we included the often neglected rs25531 polymorphism, which is closely connected to the 5-HTTLPR. Based on data from male offenders and community volunteers, structural equation modeling indicated that the 5-HTTLPR/rs25531 haplotype was specifically associated with interpersonal deficits beyond the overarching psychopathy construct. Latent profile analysis revealed four clusters that were labeled non-psychopaths, sociopaths, callous-conning, and psychopaths. The low-activity variant of the 5-HTTLPR/rs25531 haplotype was significantly more frequent in the callous-conning compared to the non-psychopathic subtype. There were no effects for the MAOA uVNTR. The results illustrate that psychopathy should not be treated as a unitary construct but that there are variants with specific profiles of psychopathic traits, and that the 5-HTTLPR/rs25531 haplotype plays a role in the manifestation of interpersonal deficits from a variable-centered as well as from a person-centered view.
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Affiliation(s)
- Pia Hollerbach
- Institute for Sex Research, Sexual Medicine & Forensic Psychiatry, Center for Psychosocial Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Department of Forensic Psychiatry, University Hospital of Psychiatry Zurich, Zurich, Switzerland.
| | - Sally Olderbak
- Ulm University, Institute of Psychology and Education, Ulm, Germany.
| | - Oliver Wilhelm
- Ulm University, Institute of Psychology and Education, Ulm, Germany.
| | - Christian Montag
- Ulm University, Institute of Psychology and Education, Ulm, Germany; The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Laboratory for Neuroinformation, University of Electronic Science and Technology of China, School of Life Science and Technology, Chengdu, China.
| | - Sonja Jung
- Ulm University, Institute of Psychology and Education, Ulm, Germany.
| | - Craig S Neumann
- Department of Psychology, University of North Texas, Denton, TX, USA.
| | - Elmar Habermeyer
- Department of Forensic Psychiatry, University Hospital of Psychiatry Zurich, Zurich, Switzerland.
| | - Andreas Mokros
- Department of Psychology, FernUniversität in Hagen (University of Hagen), Hagen, Germany.
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23
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Cheng P, Zhang J, Wu Y, Liu W, Zhu J, Chen Z, Zhang J, Guan S, Sun Y, Wang J. 5-HTTLPR polymorphism and depression risk in Parkinson's disease: an updated meta-analysis. Acta Neurol Belg 2021; 121:933-940. [PMID: 32219696 DOI: 10.1007/s13760-020-01342-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 03/19/2020] [Indexed: 12/13/2022]
Abstract
The relationship between the 5-hydroxytryptamine transporter gene-linked polymorphic region (5-HTTLPR) and depression in Parkinson's disease (PD) has remained controversial. Therefore, we conducted this meta-analysis to evaluate the relationship between 5-HTTLPR polymorphisms and depression in PD. Relevant online databases were searched for cross-sectional, case-control or cohort studies examining relations between 5-HTTLPR polymorphisms (S/L) and the risk of developing depression of PD using a meta-analysis. Odd ratios (ORs) of 5-HTTLPR polymorphisms (S/L allele genotype) were calculated between depression in PD and PD for each study. Five observational studies were identified. Overall ORs for 5-HTTLPR S-Allele genotype was 1.98 (95% CI 0.92-4.26) in the dominant model, 1.43 (95% CI 1.08-1.90) in the recessive model, 2.64 (95% CI 1.01-6.88) in the additive model, independently. The overall ORs of S-Allele genotype was 1.51 (95% CI 0.63-3.64) for the Caucasian subgroup, and 1.44 (95% CI 1.05-1.98) for the non-Caucasian subgroup in the recessive model. This meta-analysis indicates that the 5-HTTLPR genotype (S/S-Allele) is correlated with an increased depression risk in PD, and this highlights the needs for these people to take some effective approaches (if any) in prevention of depression of PD before its onset.
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Affiliation(s)
- Pengfei Cheng
- Department of Neurology, The First Affiliated Hospital of Jiamusi University, 348 Xuefu Street, Xiangyang District, Jiamusi, 154002, Heilongjiang Province, People's Republic of China.
| | - Junxiang Zhang
- Department of Neurology, The First Affiliated Hospital of Jiamusi University, 348 Xuefu Street, Xiangyang District, Jiamusi, 154002, Heilongjiang Province, People's Republic of China
| | - Yu Wu
- Institute of Clinical Research and Translational Medicine, Gansu Provincial Hospital, Lanzhou, People's Republic of China
| | - Wenting Liu
- Department of Neurology, The First Affiliated Hospital of Jiamusi University, 348 Xuefu Street, Xiangyang District, Jiamusi, 154002, Heilongjiang Province, People's Republic of China
| | - Jiaying Zhu
- Department of Neurology, The First Affiliated Hospital of Jiamusi University, 348 Xuefu Street, Xiangyang District, Jiamusi, 154002, Heilongjiang Province, People's Republic of China
| | - Ze Chen
- School of Basic Medicine, Jiamusi University, Jiamusi, People's Republic of China
| | - Jiarui Zhang
- School of Basic Medicine, Jiamusi University, Jiamusi, People's Republic of China
| | - Songwen Guan
- School of Basic Medicine, Jiamusi University, Jiamusi, People's Republic of China
| | - Yiming Sun
- School of Basic Medicine, Jiamusi University, Jiamusi, People's Republic of China
| | - Jingxia Wang
- School of Basic Medicine, Jiamusi University, Jiamusi, People's Republic of China
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24
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Lee KS, Choi YJ, Cho JW, Moon SJ, Lim YH, Kim JI, Lee YA, Shin CH, Kim BN, Hong YC. Children's Greenness Exposure and IQ-Associated DNA Methylation: A Prospective Cohort Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:7429. [PMID: 34299878 PMCID: PMC8304819 DOI: 10.3390/ijerph18147429] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/29/2021] [Accepted: 07/05/2021] [Indexed: 12/11/2022]
Abstract
Epigenetics is known to be involved in regulatory pathways through which greenness exposure influences child development and health. We aimed to investigate the associations between residential surrounding greenness and DNA methylation changes in children, and further assessed the association between DNA methylation and children's intelligence quotient (IQ) in a prospective cohort study. We identified cytosine-guanine dinucleotide sites (CpGs) associated with cognitive abilities from epigenome- and genome-wide association studies through a systematic literature review for candidate gene analysis. We estimated the residential surrounding greenness at age 2 using a geographic information system. DNA methylation was analyzed from whole blood using the HumanMethylationEPIC array in 59 children at age 2. We analyzed the association between greenness exposure and DNA methylation at age 2 at the selected CpGs using multivariable linear regression. We further investigated the relationship between DNA methylation and children's IQ. We identified 8743 CpGs associated with cognitive ability based on the literature review. Among these CpGs, we found that 25 CpGs were significantly associated with greenness exposure at age 2, including cg26269038 (Bonferroni-corrected p ≤ 0.05) located in the body of SLC6A3, which encodes a dopamine transporter. DNA methylation at cg26269038 at age 2 was significantly associated with children's performance IQ at age 6. Exposure to surrounding greenness was associated with cognitive ability-related DNA methylation changes, which was also associated with children's IQ. Further studies are warranted to clarify the epigenetic pathways linking greenness exposure and neurocognitive function.
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Affiliation(s)
- Kyung-Shin Lee
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul 03080, Korea; (K.-S.L.); (Y.-J.C.); (S.-J.M.); (Y.-H.L.)
- Environmental Health Center, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Yoon-Jung Choi
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul 03080, Korea; (K.-S.L.); (Y.-J.C.); (S.-J.M.); (Y.-H.L.)
- Environmental Health Center, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Jin-Woo Cho
- Department of Statistics, University of Pittsburgh, Pittsburgh, PA 15260, USA;
| | - Sung-Ji Moon
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul 03080, Korea; (K.-S.L.); (Y.-J.C.); (S.-J.M.); (Y.-H.L.)
| | - Youn-Hee Lim
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul 03080, Korea; (K.-S.L.); (Y.-J.C.); (S.-J.M.); (Y.-H.L.)
- Section of Environmental Health, Department of Public Health, University of Copenhagen, 1014 Copenhagen, Denmark
| | - Johanna-Inhyang Kim
- Department of Psychiatry, Hanyang University Medical Center, Seoul 04763, Korea;
| | - Young-Ah Lee
- Department of Pediatrics, Seoul National University Children’s Hospital, Seoul National University College of Medicine, Seoul 03080, Korea; (Y.-A.L.); (C.-H.S.)
| | - Choong-Ho Shin
- Department of Pediatrics, Seoul National University Children’s Hospital, Seoul National University College of Medicine, Seoul 03080, Korea; (Y.-A.L.); (C.-H.S.)
| | - Bung-Nyun Kim
- Division of Children and Adolescent Psychiatry, Department of Psychiatry, Seoul National University Hospital, Seoul 03080, Korea
| | - Yun-Chul Hong
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul 03080, Korea; (K.-S.L.); (Y.-J.C.); (S.-J.M.); (Y.-H.L.)
- Environmental Health Center, Seoul National University College of Medicine, Seoul 03080, Korea
- Institute of Environmental Medicine, Seoul National University Medical Research Center, Seoul 03080, Korea
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25
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Abstract
Ethnic differences may significantly influence the outcome of psychopharmacological treatment, in terms of prescription, adherence, clinical response, emergence of side effects, as well as pharmacokinetics and pharmacodynamics. The purpose of this review was to explore the available literature in order to provide general suggestions to help clinicians in choosing the best therapeutic option for patients, taking into account ethnicity. Although findings are sometimes controversial, the overall published studies suggest that ethnicities other than Caucasians tend to show a lower response to antidepressants and a reduced compliance. Africans tend to be more prescribed with antipsychotics, probably due to cultural stereotypes, except with clozapine, probably for their chronic benign neutropenia. Asians usually require less antipsychotic dosages than Caucasians. The differential response and side effect profile of antidepressants and antipsychotics have been related to individual intrinsic factors, to genetic make-up, but also to cultural and contextual variables. Interestingly, albeit limited data suggest ethnic-related genetic heterogeneity at the level of the serotonin transporters, the cytochromes and some neuroreceptors. Taken together, no conclusive findings are available about the role and impact of ethnicity in psychopharmacology. One of the main problems is that the majority of the studies in psychopharmacology have been conducted on Caucasians, so that there is an urgent need to have data in other populations. Furthermore, in the era of precision medicine, the role of ethnicity may be also supported by genetic analysis.
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26
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The neurobiology of human aggressive behavior: Neuroimaging, genetic, and neurochemical aspects. Prog Neuropsychopharmacol Biol Psychiatry 2021; 106:110059. [PMID: 32822763 DOI: 10.1016/j.pnpbp.2020.110059] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 06/12/2020] [Accepted: 08/03/2020] [Indexed: 12/18/2022]
Abstract
In modern societies, there is a strive to improve the quality of life related to risk of crimes which inevitably requires a better understanding of brain determinants and mediators of aggression. Neurobiology provides powerful tools to achieve this end. Pre-clinical and clinical studies show that changes in regional volumes, metabolism-function and connectivity within specific neural networks are related to aggression. Subregions of prefrontal cortex, insula, amygdala, basal ganglia and hippocampus play a major role within these circuits and have been consistently implicated in biology of aggression. Genetic variations in proteins regulating the synthesis, degradation, and transport of serotonin and dopamine as well as their signal transduction have been found to mediate behavioral variability observed in aggression. Gene-gene and gene-environment interactions represent additional important risk factors for aggressiveness. Considering the social burden of pathological forms of aggression, more basic and translational studies should be conducted to accelerate applications to clinical practice, justice courts, and policy making.
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27
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Ikegame T, Hidaka Y, Nakachi Y, Murata Y, Watanabe R, Sugawara H, Asai T, Kiyota E, Saito T, Ikeda M, Sasaki T, Hashimoto M, Ishikawa T, Takebayashi M, Iwata N, Kakiuchi C, Kato T, Kasai K, Bundo M, Iwamoto K. Identification and functional characterization of the extremely long allele of the serotonin transporter-linked polymorphic region. Transl Psychiatry 2021; 11:119. [PMID: 33574244 PMCID: PMC7878853 DOI: 10.1038/s41398-021-01242-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 12/02/2020] [Accepted: 12/10/2020] [Indexed: 12/31/2022] Open
Abstract
SLC6A4, which encodes the serotonin transporter, has a functional polymorphism called the serotonin transporter-linked polymorphic region (5-HTTLPR). The 5-HTTLPR consists of short (S) and long (L) alleles, each of which has 14 or 16 tandem repeats. In addition, the extralong (XL) and other rare alleles have been reported in 5-HTTLPR. Although they are more frequent in Asian and African than in other populations, the extent of variations and allele frequencies (AFs) were not addressed in a large population. Here, we report the AFs of the rare alleles in a large number of Japanese subjects (N = 2894) consisting of two cohorts. The first cohort (case-control study set, CCSS) consisted of 1366 subjects, including 485 controls and 881 patients with psychosis (bipolar disorder or schizophrenia). The second cohort (the Arao cohort study set, ACSS) consisted of 1528 elderly subjects. During genotyping, we identified 11 novel 5-HTTLPR alleles, including 3 XL alleles. One novel allele had the longest subunit ever reported, consisting of 28 tandem repeats. We named this XL28-A. An in vitro luciferase assay revealed that XL28-A has no transcriptional activity. XL28-A was found in two unrelated patients with bipolar disorder in the CCSS and one healthy subject in the ACSS who did not show depressive symptoms or a decline in cognitive function. Therefore, it is unlikely that XL28-A is associated with psychiatric disorders, despite its apparent functional deficit. Our results suggest that unraveling the complex genetic variations of 5-HTTLPR will be important for further understanding its role in psychiatric disorders.
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Affiliation(s)
- Tempei Ikegame
- grid.26999.3d0000 0001 2151 536XDepartment of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yosuke Hidaka
- grid.274841.c0000 0001 0660 6749Department of Neuropsychiatry, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yutaka Nakachi
- grid.274841.c0000 0001 0660 6749Department of Molecular Brain Science, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Yui Murata
- grid.274841.c0000 0001 0660 6749Department of Molecular Brain Science, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Risa Watanabe
- grid.274841.c0000 0001 0660 6749Department of Molecular Brain Science, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Hiroko Sugawara
- grid.414976.90000 0004 0546 3696Department of Psychiatry, Kansai Rosai Hospital, Hyogo, Japan
| | - Tatsuro Asai
- grid.26999.3d0000 0001 2151 536XDepartment of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Emi Kiyota
- grid.274841.c0000 0001 0660 6749Department of Molecular Brain Science, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Takeo Saito
- grid.256115.40000 0004 1761 798XDepartment of Psychiatry, Fujita Health University School of Medicine, Toyoake, Japan
| | - Masashi Ikeda
- grid.256115.40000 0004 1761 798XDepartment of Psychiatry, Fujita Health University School of Medicine, Toyoake, Japan
| | - Tsukasa Sasaki
- grid.26999.3d0000 0001 2151 536XLaboratory of Health Education, Graduate School of Education, The University of Tokyo, Tokyo, Japan
| | - Mamoru Hashimoto
- grid.136593.b0000 0004 0373 3971Department of Psychiatry, Graduate School of Medicine Osaka University, Osaka, Japan
| | - Tomohisa Ishikawa
- grid.274841.c0000 0001 0660 6749Department of Neuropsychiatry, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Minoru Takebayashi
- grid.274841.c0000 0001 0660 6749Department of Neuropsychiatry, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Nakao Iwata
- grid.256115.40000 0004 1761 798XDepartment of Psychiatry, Fujita Health University School of Medicine, Toyoake, Japan
| | - Chihiro Kakiuchi
- grid.258269.20000 0004 1762 2738Department of Psychiatry and Behavioral Science, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Tadafumi Kato
- grid.258269.20000 0004 1762 2738Department of Psychiatry and Behavioral Science, Graduate School of Medicine, Juntendo University, Tokyo, Japan ,grid.474690.8Laboratory for Molecular Dynamics of Mental Disorders, RIKEN CBS, Wako, Japan
| | - Kiyoto Kasai
- grid.26999.3d0000 0001 2151 536XDepartment of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan ,grid.26999.3d0000 0001 2151 536XInternational Research Center for Neurointelligence (WPI-IRCN), The University of Tokyo Institutes for Advanced Study (UTIAS), The University of Tokyo, Tokyo, Japan
| | - Miki Bundo
- Department of Molecular Brain Science, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan.
| | - Kazuya Iwamoto
- Department of Molecular Brain Science, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan.
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28
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Lie MU, Winsvold B, Gjerstad J, Matre D, Pedersen LM, Heuch I, Zwart JA, Nilsen KB. The association between selected genetic variants and individual differences in experimental pain. Scand J Pain 2021; 21:163-173. [PMID: 33108341 DOI: 10.1515/sjpain-2020-0091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 09/01/2020] [Indexed: 12/16/2022]
Abstract
OBJECTIVES The underlying mechanisms for individual differences in experimental pain are not fully understood, but genetic susceptibility is hypothesized to explain some of these differences. In the present study we focus on three genetic variants important for modulating experimental pain related to serotonin (SLC6A4 5-HTTLPR/rs25531 A>G), catecholamine (COMT rs4680 Val158Met) and opioid (OPRM1 rs1799971 A118G) signaling. We aimed to investigate associations between each of the selected genetic variants and individual differences in experimental pain. METHODS In total 356 subjects (232 low back pain patients and 124 healthy volunteers) were genotyped and assessed with tests of heat pain threshold, pressure pain thresholds, heat pain tolerance, conditioned pain modulation (CPM), offset analgesia, temporal summation and secondary hyperalgesia. Low back pain patients and healthy volunteers did not differ in regards to experimental test results or allelic frequencies, and were therefore analyzed as one group. The associations were tested using analysis of variance and the Kruskal-Wallis test. RESULTS No significant associations were observed between the genetic variants (SLC6A4 5-HTTLPR/rs25531 A>G, COMT rs4680 Val158Met and OPRM1 rs1799971 A118G) and individual differences in experimental pain (heat pain threshold, pressure pain threshold, heat pain tolerance, CPM, offset analgesia, temporal summation and secondary hyperalgesia). CONCLUSIONS The selected pain-associated genetic variants were not associated with individual differences in experimental pain. Genetic variants well known for playing central roles in pain perception failed to explain individual differences in experimental pain in 356 subjects. The finding is an important contribution to the literature, which often consists of studies with lower sample size and one or few experimental pain assessments.
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Affiliation(s)
| | - Bendik Winsvold
- Department of Research, Innovation and Education, Division of Clinical Neuroscience, Oslo University Hospital, Oslo, Norway
| | - Johannes Gjerstad
- National Institute of Occupational Health, Department of Work Psychology and Physiology, Oslo, Norway.,Department of Bioscience, University of Oslo, Oslo, Norway
| | - Dagfinn Matre
- National Institute of Occupational Health, Department of Work Psychology and Physiology, Oslo, Norway
| | - Linda M Pedersen
- Department of Research, Innovation and Education, Division of Clinical Neuroscience, Oslo University Hospital, Oslo, Norway
| | - Ingrid Heuch
- Department of Research, Innovation and Education, Division of Clinical Neuroscience, Oslo University Hospital, Oslo, Norway
| | - John-Anker Zwart
- Department of Research, Innovation and Education, Division of Clinical Neuroscience, Oslo University Hospital, Oslo, Norway.,Faculty of Medicine, University of Oslo, Oslo, Norway
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29
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The effects of 5-HTTLPR/rs25531 serotonin transporter gene polymorphisms on antisocial personality disorder among criminals in a sample of the Turkish population. Mol Biol Rep 2021; 48:77-84. [PMID: 33452587 DOI: 10.1007/s11033-021-06137-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 01/02/2021] [Indexed: 10/22/2022]
Abstract
Antisocial personality disorder (ASPD) is a cluster B personality disorder characterized by a disposition for criminal behaviors. It has been determined by previous studies that ASPD may have a genetic origin and the human serotonin transporter gene (SLC6A4) is one of the two serotonergic genes expected to be associated with this disorder. 5-HTT-linked polymorphic promoter region (5-HTTLPR) is a degenerate repeat polymorphic region in SLC6A4, the gene that codes for the serotonin transporter. Among many polymorphisms in SLC6A4, 5-HTTLPR an insertion/deletion (indel) polymorphism and rs25531 single nucleotide polymorphism (SNP) in the 5-HTTLPR polymorphic region contribute to the regulation of SLC6A4 expression. In this study, we aimed to reveal the relationship between frequencies of 5-HTTLPR variants and ASPD among criminals in the Turkish population. Moreover, it was also attempted to figure out the SLC6A4 gene expression level differences regarding these polymorphisms. The 5-HTTLPR/rs25531 genotypes were determined by PCR and restriction length polymorphism (RFLP) analyses and quantitative real-time-PCR was done for measuring the gene expression levels in the case and control groups. Although no significant difference was observed in the distributions of the 5-HTTLPR/rs25531 polymorphisms between the case and control groups, SLC6A4 expression level in the control group was found significantly higher than the case group (p < 0.0001). There was also no significant difference between genotypes in terms of mRNA expression levels in either the control or the case group. According to our results, ASPD in Turkish society is associated with the SLC6A4 gene expression levels, though the distributions of 5-HTTLPR polymorphisms are not different. This study sheds light on future relevant studies as the first study which is conducted in criminals with ASPD in the Turkish community.
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30
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Cerniglia L, Cimino S, Marzilli E, Pascale E, Tambelli R. Associations Among Internet Addiction, Genetic Polymorphisms, Family Functioning, and Psychopathological Risk: Cross-Sectional Exploratory Study. JMIR Ment Health 2020; 7:e17341. [PMID: 33361057 PMCID: PMC7790611 DOI: 10.2196/17341] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 10/02/2020] [Accepted: 10/20/2020] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND International research has emphasized that youths are at higher risk for the onset of internet addiction (IA), but studies investigating biological, psychological, and social factors associated with this condition are limited. OBJECTIVE This study aims to investigate the possible association between IA and genetic polymorphisms in monoamine oxidase A (MAO-A), serotonin-transporter (5-HTTPR), dopamine receptor (DRD4), and dopamine transporter (DAT1) genes by considering the role played by the perception of young adults in their family functioning and their depression, anxiety, and avoidant personality problems. METHODS In a sample of 104 male and female young adults aged between 19 and 23 years (mean age 21.87, SD 2.29 years) recruited from universities in the central southern part of Italy, we addressed the presence of IA using the Young criteria of the IA test. Moreover, the perception of young adults of their family functioning and their psychopathological symptoms were assessed through the Family Assessment Device (FAD) and the Adult Self-Report, respectively. RESULTS We found no significant association between IA and any genetic polymorphisms, neither among males or females. Young adults with IA reported significantly higher scores in the subscale of FAD affective responsiveness (AR; P=.01) and in depressive problems (P=.02), anxiety problems (P=.009), and avoidant personality problems (P=.003) than those in the control group. Results of mediation analyses showed a mediation role played by depressive symptoms (B=0.99; 95% CI 0.22 to 1.97) and avoidant personality problems (B=1.09; 95% CI 0.32 to 2.05) of young adults on the relationship between the FAD, AR, and IA. Finally, this relationship was moderated by the genotype of the 5-HTTLPR (P<.001), DAT1 (P<.001), and MAO-A (P<.001) genes in young adults. CONCLUSIONS This exploratory study supports the recent evidence on the mutual relationship among biological, individual, and social risk factors associated with IA in young adulthood. Our findings may have important clinical implications for the development of prevention and treatment programs.
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Affiliation(s)
- Luca Cerniglia
- International Telematic University Uninettuno, Rome, Italy
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Camperio Ciani AS, Edelman S, Ebstein RP. The Dopamine D4 Receptor (DRD4) Exon 3 VNTR Contributes to Adaptive Personality Differences in an Italian Small Island Population. EUROPEAN JOURNAL OF PERSONALITY 2020. [DOI: 10.1002/per.1917] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The search for evolutionary forces shaping the diversity of human personality traits encouraged studies that have found that islanders are relatively closed and introverted, with little interest in the external world. The ‘personality gene flow’ hypothesis was proposed to explain the mechanism underlying this difference, suggesting that the frequency of alleles that influence islander personality traits might progressively increase in the gene pools on islands because of selective emigration of individuals not displaying these alleles. We genotyped 96 individuals from the Italian mainland and 117 from Giglio Island, whose residents were previously assessed regarding their personality traits. We genotyped three polymorphisms: the dopamine D4 receptor (DRD4) exon 3 repeat region, the serotonin–transporter SLC6A4 5–HTTLPR indel and the dopamine transporter SLC6A3 DAT1 3′UTR repeat region. Only the DRD4 exon 3 repeat was hypothesised to show varying allele frequencies because this polymorphism could be associated with human migration and personality traits such as extraversion, openness and novelty seeking. As predicted, no differences in allele frequencies were found for the SLC6A4 and SLC6A3 polymorphisms, whereas significant differences were observed in the frequency of the DRD4 exon 3 alleles. The DRD4.2 repeat was more common in mainlanders, as expected, whereas the DRD4.7 allele was over–represented among islanders who never emigrated. This last result contradicts the suggested association of this allele with long–distance migrations. We suggest that emigration might have caused gene flow out the island that resulted in somewhat unpredictable changes in the frequencies of specific alleles, thus influencing islander personality traits. Copyright © 2013 European Association of Personality Psychology
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Affiliation(s)
| | - Shany Edelman
- Department of Neurobiology, Hebrew University, Jerusalem, Israel
| | - Richard P. Ebstein
- Psychology Department, Mt Scopus Campus, Hebrew University, Jerusalem, Israel
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Warnke K, Brandt J, Jörgens S, Arolt V, Beer K, Domschke K, Haverkamp W, Kuhlmann SL, Müller-Nordhorn J, Rieckmann N, Schwarte K, Ströhle A, Tschorn M, Waltenberger J, Grosse L. Association of 5-HTTLPR/rs25531 with depressive symptoms in patients with coronary heart disease: A prospective study. J Affect Disord 2020; 277:531-539. [PMID: 32889377 DOI: 10.1016/j.jad.2020.08.046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 06/06/2020] [Accepted: 08/20/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND 5-HTTLPR/rs25531 is suspected to be involved in the pathogenesis of both coronary heart disease (CHD)1 and depression. We aimed to investigate the role of 5-HTTLPR/rs25531 in the development of depressive symptoms among CHD patients in a longitudinal design. METHODS N = 265 participants with CHD diagnosis were included while hospitalized in a department of cardiology and genotyped for the 5-HTTLPR/rs25531. Depressive symptoms were measured using the Patient Health Questionnaire (PHQ-9)7 at baseline and after 6 and 12 months. Binary logistic regression models were used to analyze the association of 5-HTTLPR/rs25531 with the prevalence of depressive symptoms at each time point as well as with the incidence and persistence of depressive symptoms at follow-up. RESULTS "LALA" genotype was associated with a higher prevalence of depressive symptoms 12 months after study inclusion. "LALA" genotype was associated with a higher incidence of depressive symptoms 6 and 12 months after study inclusion. There was no association of 5-HTTLPR/rs25531 with the persistence of depressive symptoms. LIMITATIONS Inclusion criteria did not demand a particular cardiac event at baseline, which aggravated the interpretation of the time-specific results. The majority of the participants was of male gender which could cause bias. The present study only vaguely differentiated between ethnical groups which might cause bias regarding nationality-dependent allele distributions. CONCLUSION The present study suggests a time-dependent association of the "LALA" genotype with depressive symptoms in CHD patients. 5-HTTLPR/rs25531 might be an important marker to detect risk groups for later onset depressive symptoms among CHD patients.
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Affiliation(s)
- Katharina Warnke
- Department of Psychiatry and Psychotherapy, University Hospital Münster, Germany.
| | - Julia Brandt
- Department of Psychiatry and Psychotherapy, University Hospital Münster, Germany
| | - Silke Jörgens
- Department of Psychiatry and Psychotherapy, University Hospital Münster, Germany
| | - Volker Arolt
- Department of Psychiatry and Psychotherapy, University Hospital Münster, Germany
| | - Katja Beer
- Charité - Universitätsmedizin Berlin, corporate member of the Freie Universität Berlin, Humboldt-Universität zu Berlin, and the Berlin Institute of Health, Department of Psychiatry and Psychotherapy, Berlin, Germany
| | - Katharina Domschke
- Department of Psychiatry and Psychotherapy, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Germany
| | - Wilhelm Haverkamp
- Charité - Universitätsmedizin Berlin, corporate member of the Freie Universität Berlin, Humboldt-Universität zu Berlin, and the Berlin Institute of Health, Department of Internal Medicine and Cardiology, Berlin, Germany
| | - Stella L Kuhlmann
- Charité - Universitätsmedizin Berlin, corporate member of the Freie Universität Berlin, Humboldt-Universität zu Berlin, and the Berlin Institute of Health, Division of Emergency and Acute Medicine (CVK, CCM), Berlin, Germany; Charité - Universitätsmedizin Berlin, corporate member of the Freie Universität Berlin, Humboldt-Universität zu Berlin, and the Berlin Institute of Health, Institute of Public Health, Berlin, Germany
| | - Jacqueline Müller-Nordhorn
- Charité - Universitätsmedizin Berlin, corporate member of the Freie Universität Berlin, Humboldt-Universität zu Berlin, and the Berlin Institute of Health, Institute of Public Health, Berlin, Germany; Bavarian Food and Health Safety Authority, Oberschleißheim, Germany
| | - Nina Rieckmann
- Charité - Universitätsmedizin Berlin, corporate member of the Freie Universität Berlin, Humboldt-Universität zu Berlin, and the Berlin Institute of Health, Institute of Public Health, Berlin, Germany
| | - Kathrin Schwarte
- Department of Psychiatry and Psychotherapy, University Hospital Münster, Germany
| | - Andreas Ströhle
- Charité - Universitätsmedizin Berlin, corporate member of the Freie Universität Berlin, Humboldt-Universität zu Berlin, and the Berlin Institute of Health, Department of Psychiatry and Psychotherapy, Berlin, Germany
| | - Mira Tschorn
- Charité - Universitätsmedizin Berlin, corporate member of the Freie Universität Berlin, Humboldt-Universität zu Berlin, and the Berlin Institute of Health, Department of Psychiatry and Psychotherapy, Berlin, Germany; Social and Preventive Medicine, University of Potsdam, Potsdam, Germany
| | | | - Laura Grosse
- Department of Psychiatry and Psychotherapy, University Hospital Münster, Germany; Intercultural Business Psychology, Hamm-Lippstadt University of Applied Sciences, Hamm, Germany
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Phased Haplotype Resolution of the SLC6A4 Promoter Using Long-Read Single Molecule Real-Time (SMRT) Sequencing. Genes (Basel) 2020; 11:genes11111333. [PMID: 33198140 PMCID: PMC7696006 DOI: 10.3390/genes11111333] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 11/09/2020] [Accepted: 11/10/2020] [Indexed: 01/07/2023] Open
Abstract
The SLC6A4 gene has been implicated in psychiatric disorder susceptibility and antidepressant response variability. The SLC6A4 promoter is defined by a variable number of homologous 20–24 bp repeats (5-HTTLPR), and long (L) and short (S) alleles are associated with higher and lower expression, respectively. However, this insertion/deletion variant is most informative when considered as a haplotype with the rs25531 and rs25532 variants. Therefore, we developed a long-read single molecule real-time (SMRT) sequencing method to interrogate the SLC6A4 promoter region. A total of 120 samples were subjected to SLC6A4 long-read SMRT sequencing, primarily selected based on available short-read sequencing data. Short-read genome sequencing from the 1000 Genomes (1KG) Project (~5X) and the Genetic Testing Reference Material Coordination Program (~45X), as well as high-depth short-read capture-based sequencing (~330X), could not identify the 5-HTTLPR short (S) allele, nor could short-read sequencing phase any identified variants. In contrast, long-read SMRT sequencing unambiguously identified the 5-HTTLPR short (S) allele (frequency of 0.467) and phased SLC6A4 promoter haplotypes. Additionally, discordant rs25531 genotypes were reviewed and determined to be short-read errors. Taken together, long-read SMRT sequencing is an innovative and robust method for phased resolution of the SLC6A4 promoter, which could enable more accurate pharmacogenetic testing for both research and clinical applications.
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Chang HA, Fang WH, Liu YP, Tzeng NS, Shyu JF, Wan FJ, Huang SY, Chang TC, Chang CC. Sex-specific pathways among tri-allelic serotonin transporter polymorphism, trait neuroticism and generalized anxiety disorder. J Psychiatry Neurosci 2020; 45:379-386. [PMID: 32293839 PMCID: PMC7595742 DOI: 10.1503/jpn.190092] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Neuroticism personality trait is recognized as an important endophenotypic predictor of generalized anxiety disorder (GAD). Furthermore, endophenotype-based pathway approaches have recently been shown to have greater advantages for gene-finding strategies than traditional case-control studies. In the present study, in addition to conventional case-control methods, we used pathway analyses to test whether the tri-allelic serotonin transporter promoter polymorphism (combining 5-HTTLPR and rs25531) is associated with risk of GAD through its effects on trait neuroticism. METHODS We included 2236 Han Chinese adults in this study, including 736 patients with GAD and 1500 healthy participants. We genotyped the 5-HTTLPR and rs25531 polymorphisms using the polymerase chain reaction restriction fragment length polymorphism method. We used the Neuroticism scale of the Maudsley Personality Inventory (MPI) short version (MPI-Neuroticism) to measure participants' tendency toward neuroticism. RESULTS Using endophenotype-based path analyses, we found significant indirect effects of the tri-allelic genotype on risk of GAD, mediated by MPI-Neuroticism in both men and women. Compared to women carrying the S'S' genotype, women carrying the L' allele had higher levels of MPI-Neuroticism, which in turn were associated with higher risk of GAD. Men, however, showed the opposite pattern. Using traditional case-control comparisons, we observed that the effect of tri-allelic genotype on GAD was significant, but only in women. LIMITATIONS Participants were restricted to Han Chinese, and we used only 1 questionnaire to assess neuroticism. CONCLUSION These findings are the first to show that the triallelic 5-HTTLPR polymorphism is associated with elevated risk of GAD, and that this effect is mediated via increased trait neuroticism, a sex-dependent risk pathway.
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Affiliation(s)
- Hsin-An Chang
- From the Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan (H.-A. Chang, Liu, Tzeng, Shyu, Wan, Huang, T.-C. Chang, C.-C. Chang); the Department of Family and Community Medicine, TriService General Hospital, National Defense Medical Center, Taipei, Taiwan (Fang); the Department of Psychiatry, Cheng Hsin General Hospital, Taipei, Taiwan (Liu); the Laboratory of Cognitive Neuroscience, Department of Physiology, National Defense Medical Center, Taipei, Taiwan (Liu); and the Department of Biology and Anatomy, National Defense Medical Center, Taipei, Taiwan (Shyu)
| | - Wen-Hui Fang
- From the Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan (H.-A. Chang, Liu, Tzeng, Shyu, Wan, Huang, T.-C. Chang, C.-C. Chang); the Department of Family and Community Medicine, TriService General Hospital, National Defense Medical Center, Taipei, Taiwan (Fang); the Department of Psychiatry, Cheng Hsin General Hospital, Taipei, Taiwan (Liu); the Laboratory of Cognitive Neuroscience, Department of Physiology, National Defense Medical Center, Taipei, Taiwan (Liu); and the Department of Biology and Anatomy, National Defense Medical Center, Taipei, Taiwan (Shyu)
| | - Yia-Ping Liu
- From the Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan (H.-A. Chang, Liu, Tzeng, Shyu, Wan, Huang, T.-C. Chang, C.-C. Chang); the Department of Family and Community Medicine, TriService General Hospital, National Defense Medical Center, Taipei, Taiwan (Fang); the Department of Psychiatry, Cheng Hsin General Hospital, Taipei, Taiwan (Liu); the Laboratory of Cognitive Neuroscience, Department of Physiology, National Defense Medical Center, Taipei, Taiwan (Liu); and the Department of Biology and Anatomy, National Defense Medical Center, Taipei, Taiwan (Shyu)
| | - Nian-Sheng Tzeng
- From the Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan (H.-A. Chang, Liu, Tzeng, Shyu, Wan, Huang, T.-C. Chang, C.-C. Chang); the Department of Family and Community Medicine, TriService General Hospital, National Defense Medical Center, Taipei, Taiwan (Fang); the Department of Psychiatry, Cheng Hsin General Hospital, Taipei, Taiwan (Liu); the Laboratory of Cognitive Neuroscience, Department of Physiology, National Defense Medical Center, Taipei, Taiwan (Liu); and the Department of Biology and Anatomy, National Defense Medical Center, Taipei, Taiwan (Shyu)
| | - Jia-Fwu Shyu
- From the Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan (H.-A. Chang, Liu, Tzeng, Shyu, Wan, Huang, T.-C. Chang, C.-C. Chang); the Department of Family and Community Medicine, TriService General Hospital, National Defense Medical Center, Taipei, Taiwan (Fang); the Department of Psychiatry, Cheng Hsin General Hospital, Taipei, Taiwan (Liu); the Laboratory of Cognitive Neuroscience, Department of Physiology, National Defense Medical Center, Taipei, Taiwan (Liu); and the Department of Biology and Anatomy, National Defense Medical Center, Taipei, Taiwan (Shyu)
| | - Fang-Jung Wan
- From the Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan (H.-A. Chang, Liu, Tzeng, Shyu, Wan, Huang, T.-C. Chang, C.-C. Chang); the Department of Family and Community Medicine, TriService General Hospital, National Defense Medical Center, Taipei, Taiwan (Fang); the Department of Psychiatry, Cheng Hsin General Hospital, Taipei, Taiwan (Liu); the Laboratory of Cognitive Neuroscience, Department of Physiology, National Defense Medical Center, Taipei, Taiwan (Liu); and the Department of Biology and Anatomy, National Defense Medical Center, Taipei, Taiwan (Shyu)
| | - San-Yuan Huang
- From the Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan (H.-A. Chang, Liu, Tzeng, Shyu, Wan, Huang, T.-C. Chang, C.-C. Chang); the Department of Family and Community Medicine, TriService General Hospital, National Defense Medical Center, Taipei, Taiwan (Fang); the Department of Psychiatry, Cheng Hsin General Hospital, Taipei, Taiwan (Liu); the Laboratory of Cognitive Neuroscience, Department of Physiology, National Defense Medical Center, Taipei, Taiwan (Liu); and the Department of Biology and Anatomy, National Defense Medical Center, Taipei, Taiwan (Shyu)
| | - Tieh-Ching Chang
- From the Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan (H.-A. Chang, Liu, Tzeng, Shyu, Wan, Huang, T.-C. Chang, C.-C. Chang); the Department of Family and Community Medicine, TriService General Hospital, National Defense Medical Center, Taipei, Taiwan (Fang); the Department of Psychiatry, Cheng Hsin General Hospital, Taipei, Taiwan (Liu); the Laboratory of Cognitive Neuroscience, Department of Physiology, National Defense Medical Center, Taipei, Taiwan (Liu); and the Department of Biology and Anatomy, National Defense Medical Center, Taipei, Taiwan (Shyu)
| | - Chuan-Chia Chang
- From the Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan (H.-A. Chang, Liu, Tzeng, Shyu, Wan, Huang, T.-C. Chang, C.-C. Chang); the Department of Family and Community Medicine, TriService General Hospital, National Defense Medical Center, Taipei, Taiwan (Fang); the Department of Psychiatry, Cheng Hsin General Hospital, Taipei, Taiwan (Liu); the Laboratory of Cognitive Neuroscience, Department of Physiology, National Defense Medical Center, Taipei, Taiwan (Liu); and the Department of Biology and Anatomy, National Defense Medical Center, Taipei, Taiwan (Shyu)
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Kandemis E, Tuncel G, Asut O, Temel SG, Ergoren MC. Strong Association between Serotonin Transporter 5-HTTVNTR Variant and Psychoactive Substance (Nicotine) Use in the Turkish Cypriot Population. Curr Drug Metab 2020; 21:466-470. [PMID: 32562520 DOI: 10.2174/1389200221666200620201348] [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: 10/29/2019] [Revised: 04/13/2020] [Accepted: 05/08/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND The use of psychoactive substances is one of the most dangerous social problems worldwide. Nicotine dependence results from the interaction between neurobiological, environmental and genetic factors. Serotonin is a neurotransmitter that has a wide range of central nervous system activities. The serotonin transporter gene has been previously linked to psychological traits. OBJECTIVE A variable number of tandem repeats within the serotonin transporter-linked polymorphic gene region are believed to alter the transcriptional efficiency of the 5-HTT gene. Therefore, we aimed to investigate the association between this polymorphic site and smoking behavior in the Turkish Cypriot population. METHODS A total of 259 (100 smokers, 100 non-smokers and 59 ex-smokers) Turkish Cypriots were included in this population-based cross-sectional study. Genomic DNA was extracted from peripheral blood samples and the 5-HTTVNTR2 polymorphisms were determined by the PCR-RFLP. RESULTS The allelic frequency and genotype distribution results of this study showed a strong association (P<0.0001) between smokers and non-smokers. No statistical significance was found between non-smokers and ex-smokers. CONCLUSION This is the first genetic epidemiology study to investigate the allelic frequencies of 5-HTTVNTR2 polymorphisms associated with smoking behavior in the Turkish Cypriot population. Based on the results of this study, genome-wide association studies should be designed for preventive medicine in this population.
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Affiliation(s)
- Emine Kandemis
- Department of Molecular Biology and Genetics, Faculty of Engineering and Natural Sciences, Bahçeşehir University, Istanbul 34353, Turkey
| | - Gulten Tuncel
- Department of Medical Biology, Faculty of Medicine, Near East University, Nicosia 99138, Cyprus
| | - Ozen Asut
- Department of Public Health, Faculty of Medicine, Near East University, Nicosia 99138, Cyprus
| | - Sehime G Temel
- Department of Medical Genetics, Faculty of Medicine, Uludag University, Bursa 16059, Turkey
| | - Mahmut C Ergoren
- Department of Medical Biology, Faculty of Medicine, Near East University, Nicosia 99138, Cyprus
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Ikegame T, Bundo M, Okada N, Murata Y, Koike S, Sugawara H, Saito T, Ikeda M, Owada K, Fukunaga M, Yamashita F, Koshiyama D, Natsubori T, Iwashiro N, Asai T, Yoshikawa A, Nishimura F, Kawamura Y, Ishigooka J, Kakiuchi C, Sasaki T, Abe O, Hashimoto R, Iwata N, Yamasue H, Kato T, Kasai K, Iwamoto K. Promoter Activity-Based Case-Control Association Study on SLC6A4 Highlighting Hypermethylation and Altered Amygdala Volume in Male Patients With Schizophrenia. Schizophr Bull 2020; 46:1577-1586. [PMID: 32556264 PMCID: PMC7846196 DOI: 10.1093/schbul/sbaa075] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Associations between altered DNA methylation of the serotonin transporter (5-HTT)-encoding gene SLC6A4 and early life adversity, mood and anxiety disorders, and amygdala reactivity have been reported. However, few studies have examined epigenetic alterations of SLC6A4 in schizophrenia (SZ). We examined CpG sites of SLC6A4, whose DNA methylation levels have been reported to be altered in bipolar disorder, using 3 independent cohorts of patients with SZ and age-matched controls. We found significant hypermethylation of a CpG site in SLC6A4 in male patients with SZ in all 3 cohorts. We showed that chronic administration of risperidone did not affect the DNA methylation status at this CpG site using common marmosets, and that in vitro DNA methylation at this CpG site diminished the promoter activity of SLC6A4. We then genotyped the 5-HTT-linked polymorphic region (5-HTTLPR) and investigated the relationship among 5-HTTLPR, DNA methylation, and amygdala volume using brain imaging data. We found that patients harboring low-activity 5-HTTLPR alleles showed hypermethylation and they showed a negative correlation between DNA methylation levels and left amygdala volumes. These results suggest that hypermethylation of the CpG site in SLC6A4 is involved in the pathophysiology of SZ, especially in male patients harboring low-activity 5-HTTLPR alleles.
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Affiliation(s)
- Tempei Ikegame
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Miki Bundo
- Department of Molecular Brain Science, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan,PRESTO, Japan Science and Technology Agency, Tokyo, Japan
| | - Naohiro Okada
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan,International Research Center for Neurointelligence (WPI-IRCN), The University of Tokyo Institutes for Advanced Study (UTIAS), The University of Tokyo, Tokyo, Japan
| | - Yui Murata
- Department of Molecular Brain Science, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Shinsuke Koike
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan,UTokyo Institute for Diversity and Adaptation of Human Mind (UTIDAHM), The University of Tokyo, Tokyo, Japan
| | - Hiroko Sugawara
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Takeo Saito
- Department of Psychiatry, Fujita Health University School of Medicine, Aichi, Japan
| | - Masashi Ikeda
- Department of Psychiatry, Fujita Health University School of Medicine, Aichi, Japan
| | - Keiho Owada
- Department of Child Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Masaki Fukunaga
- Division of Cerebral Integration, National Institute for Physiological Sciences, Aichi, Japan
| | - Fumio Yamashita
- Division of Ultrahigh Field MRI, Institute for Biomedical Sciences, Iwate Medical University, Iwate, Japan
| | - Daisuke Koshiyama
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Tatsunobu Natsubori
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Norichika Iwashiro
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Tatsuro Asai
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Akane Yoshikawa
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan,Schizophrenia Research Project, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Fumichika Nishimura
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | | | | | - Chihiro Kakiuchi
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Tsukasa Sasaki
- Laboratory of Health Education, Graduate School of Education, The University of Tokyo, Tokyo, Japan
| | - Osamu Abe
- Department of Radiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Ryota Hashimoto
- Department of Pathology of Mental Diseases, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan,Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Nakao Iwata
- Department of Psychiatry, Fujita Health University School of Medicine, Aichi, Japan
| | - Hidenori Yamasue
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan,Department of Psychiatry, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Tadafumi Kato
- Laboratory for Molecular Dynamics of Mental Disorders, RIKEN CBS, Saitama, Japan
| | - Kiyoto Kasai
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kazuya Iwamoto
- Department of Molecular Brain Science, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan,To whom correspondence should be addressed; Department of Molecular Brain Science, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan; tel: +81-96-373-5062, fax: +81-96-373-5062, e-mail:
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Zalsman G. Timing is critical: Gene, environment and timing interactions in genetics of suicide in children and adolescents. Eur Psychiatry 2020; 25:284-6. [DOI: 10.1016/j.eurpsy.2010.01.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2010] [Accepted: 01/18/2010] [Indexed: 12/12/2022] Open
Abstract
AbstractSuicidal behavior runs in families and is prevalent in adolescence. Case-control and family-based studies in this age group failed to find a genetic association that survived replications. Gene environment approach gave new hope for possible associations especially with the short allele of the serotonin transporter promoter polymorphism (5-HTTLPR). However, a recent meta-analysis raised doubts about the consistency of these findings. Some new structural and functional imaging data may shade light on the age-related and gender-related development of the brain. This review suggests a new approach to gene by environment and timing interaction to understand the interplay that leads to suicidality in adolescents and young adults.
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Marazziti D, Stahl SM, Simoncini M, Baroni S, Mucci F, Palego L, Betti L, Massimetti G, Giannaccini G, Dell'Osso L. Psychopharmacology and ethnicity: A comparative study on Senegalese and Italian men. World J Biol Psychiatry 2020; 21:300-307. [PMID: 31012797 DOI: 10.1080/15622975.2019.1583373] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Objectives: Ethnicity represents a crucial factor in influencing response to psychotropic drugs. Some data indicate that functional polymorphisms of two candidate genes of the serotonin (5-HT) transporter (SERT) may affect the response to selective 5-HT reuptake inhibitors (SSRIs). The present study aimed to compare the platelet SERT, through the specific [3H]paroxetine ([3H]Par) binding, and plasma oxytocin (OT) levels in 20 Senegalese and in 20 Italian men.Methods: No subjects had family or personal history of any major psychiatric disorder, or had ever regularly taken psychotropic drugs, or were suffering from any physical illness.Results: Senegalese men showed statistically significant higher density (Bmax, fmol/mg protein, mean ± SD) of [3H]Par binding sites (2105.00 ± 473.15 vs 1139.85 ± 213.58, P < 0.001), as well as more elevated plasma OT levels (pg/ml, mean ± SD) (OT: 18.08 ± 4.46 vs 6.62 ± 2.91) than Italian men.Conclusions: These differences, possibly due to genetic or dietary reasons, or even to gender, might affect the response to psychopharmacological compounds. Our findings would suggest specific caution when administering psychotropic compounds to non-European individuals, and the need of further studies in this emerging field of neuropsychopharmacology.
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Affiliation(s)
- Donatella Marazziti
- Dipartimento di Medicina Clinica e Sperimentale, Section of Psychiatry, University of Pisa, Pisa, Italy
| | - Stephen M Stahl
- Department of Psychiatry, University of California San Diego, La Jolla, California, USA.,Department of Psychiatry, University of Cambridge, Cambridge, UK
| | - Marly Simoncini
- Dipartimento di Medicina Clinica e Sperimentale, Section of Psychiatry, University of Pisa, Pisa, Italy
| | - Stefano Baroni
- Dipartimento di Medicina Clinica e Sperimentale, Section of Psychiatry, University of Pisa, Pisa, Italy
| | - Federico Mucci
- Dipartimento di Medicina Clinica e Sperimentale, Section of Psychiatry, University of Pisa, Pisa, Italy
| | | | - Laura Betti
- Department of Pharmacy, University of Pisa, Pisa, Italy
| | - Gabriele Massimetti
- Dipartimento di Medicina Clinica e Sperimentale, Section of Psychiatry, University of Pisa, Pisa, Italy
| | | | - Liliana Dell'Osso
- Dipartimento di Medicina Clinica e Sperimentale, Section of Psychiatry, University of Pisa, Pisa, Italy
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Staes N, Sherwood CC, Freeman H, Brosnan SF, Schapiro SJ, Hopkins WD, Bradley BJ. Serotonin Receptor 1A Variation Is Associated with Anxiety and Agonistic Behavior in Chimpanzees. Mol Biol Evol 2020; 36:1418-1429. [PMID: 31045220 DOI: 10.1093/molbev/msz061] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Serotonin is a neurotransmitter that plays an important role in regulating behavior and personality in humans and other mammals. Polymorphisms in genes coding for the serotonin receptor subtype 1A (HTR1A), the serotonin transporter (SLC6A4), and the serotonin degrading enzyme monoamine oxidase A (MAOA) are associated with anxiety, impulsivity, and neurotic personality in humans. In primates, previous research has largely focused on SLC6A4 and MAOA, with few studies investigating the role of HTR1A polymorphic variation on behavior. Here, we examined variation in the coding region of HTR1A across apes, and genotyped polymorphic coding variation in a sample of 214 chimpanzees with matched measures of personality and behavior. We found evidence for positive selection at three amino acid substitution sites, one in chimpanzees-bonobos (Thr26Ser), one in humans (Phe33Val), and one in orangutans (Ala274Gly). Investigation of the HTR1A coding region in chimpanzees revealed a polymorphic site, where a C/A single nucleotide polymorphism changes a proline to a glutamine in the amino acid sequence (Pro248Gln). The substitution is located in the third intracellular loop of the receptor, a region important for serotonin signal transduction. The derived variant is the major allele in this population (frequency 0.67), and is associated with a reduction in anxiety, decreased rates of male agonistic behavior, and an increase in socio-positive behavior. These results are the first evidence that the HTR1A gene may be involved in regulating social behavior in chimpanzees and encourage further systematic investigation of polymorphic variation in other primate populations with corresponding data on behavior.
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Affiliation(s)
- Nicky Staes
- Department of Anthropology, Center for the Advanced Study of Human Paleobiology, The George Washington University, Washington, DC.,Department of Biology, Behavioral Ecology and Ecophysiology Group, University of Antwerp, Antwerp, Belgium.,Centre for Research and Conservation, Royal Zoological Society of Antwerp, Antwerp, Belgium
| | - Chet C Sherwood
- Department of Anthropology, Center for the Advanced Study of Human Paleobiology, The George Washington University, Washington, DC
| | - Hani Freeman
- Michale E. Keeling Center for Comparative Medicine and Research, The University of Texas MD Anderson Cancer CenterBastrop, TX
| | - Sarah F Brosnan
- Michale E. Keeling Center for Comparative Medicine and Research, The University of Texas MD Anderson Cancer CenterBastrop, TX.,Department of Psychology, Georgia State University, Atlanta, GA.,Neuroscience Institute and Language Research Center, Georgia State University, Atlanta, GA
| | - Steven J Schapiro
- Michale E. Keeling Center for Comparative Medicine and Research, The University of Texas MD Anderson Cancer CenterBastrop, TX
| | - William D Hopkins
- Neuroscience Institute and Language Research Center, Georgia State University, Atlanta, GA.,Ape Cognition and Conservation Initiative, Des Moines, IA
| | - Brenda J Bradley
- Department of Anthropology, Center for the Advanced Study of Human Paleobiology, The George Washington University, Washington, DC
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40
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Navarro-Mateu F, Escámez T, Quesada MP, Alcaráz MJ, Vilagut G, Salmerón D, Huerta JM, Chirlaque MD, Navarro C, Kessler RC, Alonso J, Martínez S. Modification of the risk of post-traumatic stress disorder (PTSD) by the 5-HTTLPR polymorphisms after Lorca's earthquakes (Murcia, Spain). Psychiatry Res 2019; 282:112640. [PMID: 31727442 PMCID: PMC7436333 DOI: 10.1016/j.psychres.2019.112640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 10/13/2019] [Accepted: 10/24/2019] [Indexed: 11/26/2022]
Abstract
Information of the modulation effect of the serotonin transporter gene-linked polymorphic region (5-HTTLPR) on post-traumatic stress disorder (PTSD) after earthquakes is scarce and contradictory. A cross-sectional face-to-face interview survey of a representative sample of the adults was carried out after the Lorca (Spain) earthquakes (May 11, 2011). Socio-demographic variables, DSM-IV diagnostic assessment and earthquake-related stressors were obtained from the Composite International Diagnostic Interview (CIDI). The triallelic and biallelic classification of the 5-HTTLPR polymorphism were genotyped from buccal swabs. Multivariate logistic regression models were used to predict PTSD, including interaction terms to explore gene-environment (G x E) interactions. The vast majority (83%, n = 341) of the Lorca survey respondents (n = 412, 71% response rate) were genotyped. Both classifications of the 5-HTTLPR genotype were in Hardy-Weinberg equilibrium. Prior lifetime PTSD was the only variable that remained a significant predictor after adjustments. There were no significant main effects of earthquake related stressors or 5-HTTLPR. However, G x E interactions of 5-HTTLPR with high emotional impact and prior lifetime anxiety disorders were statistically significant. These results provide new evidence of the modulation effect of the 5-HTTLPR polymorphisms on PTSD risk. This information might characterize people at higher risk of developing PTSD after an earthquake exposure.
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Affiliation(s)
- Fernando Navarro-Mateu
- Unidad de Docencia, Investigación y Formación en Salud Mental (UDIF-SM). Servicio Murciano de Salud. Murcia, Spain; Departamento de Psicología Básica y Metodología, Universidad de Murcia. Murcia, Spain; CIBER in Epidemiology & Public Health (CIBERESP). Madrid, Spain; IMIB-Arrixaca. Murcia, Spain.
| | - Teresa Escámez
- IMIB-Arrixaca. Murcia, Spain.,BIOBANC-MUR. IMIB Arrixaca. Murcia, Spain.,Spanish Biobaks Platform, ISCIII. Madrid, Spain
| | | | - Mª José Alcaráz
- Fundación para la Formación e Investigación Sanitarias (FFIS) de la Región de Murcia. Murcia, Spain
| | - Gemma Vilagut
- CIBER in Epidemiology & Public Health (CIBERESP). Madrid, Spain.,IM-Institut Hospital del Mar dÍnvestigacions Médiques. Barcelona, Spain
| | - Diego Salmerón
- CIBER in Epidemiology & Public Health (CIBERESP). Madrid, Spain.,IMIB-Arrixaca. Murcia, Spain.,Departamento de Ciencias Sociosanitarias. Universidad de Murcia. Murcia, Spain
| | - José Mª Huerta
- CIBER in Epidemiology & Public Health (CIBERESP). Madrid, Spain.,IMIB-Arrixaca. Murcia, Spain.,Department of Epidemiology, Murcia Health Council, Murcia, Spain
| | - M. Dolores Chirlaque
- CIBER in Epidemiology & Public Health (CIBERESP). Madrid, Spain.,IMIB-Arrixaca. Murcia, Spain.,Departamento de Ciencias Sociosanitarias. Universidad de Murcia. Murcia, Spain.,Department of Epidemiology, Murcia Health Council, Murcia, Spain
| | - Carmen Navarro
- CIBER in Epidemiology & Public Health (CIBERESP). Madrid, Spain.,IMIB-Arrixaca. Murcia, Spain.,Departamento de Ciencias Sociosanitarias. Universidad de Murcia. Murcia, Spain.,Department of Epidemiology, Murcia Health Council, Murcia, Spain
| | - Ronald C. Kessler
- Department of Health Care Policy. Harvard Medical School. Boston, USA
| | - Jordi Alonso
- CIBER in Epidemiology & Public Health (CIBERESP). Madrid, Spain.,IM-Institut Hospital del Mar dÍnvestigacions Médiques. Barcelona, Spain.,Departamento de Salud y Ciencias Experimentales, Universidad Pompeu Fabra, Barcelona, Spain
| | - Salvador Martínez
- Instituto de Neurociencias UMH-CSIC. Alicante, Spain.,CIBER in Mental Health (CIBERSAM). Madrid, Spain
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Piszczek L, Memoli S, Raggioli A, Viosca J, Rientjes J, Hublitz P, Czaban W, Wyrzykowska A, Gross C. Mouse model of the human serotonin transporter-linked polymorphic region. Mamm Genome 2019; 30:319-328. [PMID: 31667540 PMCID: PMC6884432 DOI: 10.1007/s00335-019-09815-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 09/21/2019] [Indexed: 11/27/2022]
Abstract
Genetic factors play a significant role in risk for mood and anxiety disorders. Polymorphisms in genes that regulate the brain monoamine systems, such as catabolic enzymes and transporters, are attractive candidates for being risk factors for emotional disorders given the weight of evidence implicating monoamines involvement in these conditions. Several common genetic variants have been identified in the human serotonin transporter (5-HTT) gene, including a repetitive sequence located in the promoter region of the locus called the serotonin transporter-linked polymorphic region (5-HTT-LPR). This polymorphism has been associated with a number of mental traits in both humans and primates, including depression, neuroticism, and harm avoidance. Some, but not all, studies found a link between the polymorphism and 5-HTT levels, leaving open the question of whether the polymorphism affects risk for mental traits via changes in 5-HTT expression. To investigate the impact of the polymorphism on gene expression, serotonin homeostasis, and behavioral traits, we set out to develop a mouse model of the human 5-HTT-LPR. Here we describe the creation and characterization of a set of mouse lines with single-copy human transgenes carrying the short and long 5-HTT-LPR variants. Although we were not able to detect differences in expression between the short and long variants, we encountered several technical issues concerning the design of our humanized mice that are likely to have influenced our findings. Our study serves as a cautionary note for future studies aimed at studying human transgene regulation in the context of the living mouse.
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Affiliation(s)
- Lukasz Piszczek
- Epigenetics and Neurobiology Unit, European Molecular Biology Laboratory, EMBL Rome, Monterotondo, Italy.
- Research Institute of Molecular Pathology, Vienna, Austria.
| | - Simone Memoli
- Epigenetics and Neurobiology Unit, European Molecular Biology Laboratory, EMBL Rome, Monterotondo, Italy
| | - Angelo Raggioli
- Epigenetics and Neurobiology Unit, European Molecular Biology Laboratory, EMBL Rome, Monterotondo, Italy
| | - José Viosca
- Epigenetics and Neurobiology Unit, European Molecular Biology Laboratory, EMBL Rome, Monterotondo, Italy
- Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain
| | - Jeanette Rientjes
- Monash Genome Modification Platform (MGMP), Monash University, Clayton, Australia
| | - Philip Hublitz
- Epigenetics and Neurobiology Unit, European Molecular Biology Laboratory, EMBL Rome, Monterotondo, Italy
- MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Weronika Czaban
- Epigenetics and Neurobiology Unit, European Molecular Biology Laboratory, EMBL Rome, Monterotondo, Italy
| | - Anna Wyrzykowska
- Epigenetics and Neurobiology Unit, European Molecular Biology Laboratory, EMBL Rome, Monterotondo, Italy
| | - Cornelius Gross
- Epigenetics and Neurobiology Unit, European Molecular Biology Laboratory, EMBL Rome, Monterotondo, Italy.
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Navarro-Mateu F, Quesada MP, Escámez T, Alcaráz MJ, Seiquer de la Peña C, Salmerón D, Huerta JM, Vilagut G, Chirlaque MD, Navarro C, Husky M, Kessler RC, Alonso J, Martínez S. Childhood adversities and 5-HTTLPR polymorphism as risk factors of substance use disorders: retrospective case-control study in Murcia (Spain). BMJ Open 2019; 9:e030328. [PMID: 31488488 PMCID: PMC6731914 DOI: 10.1136/bmjopen-2019-030328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 06/17/2019] [Accepted: 06/24/2019] [Indexed: 11/09/2022] Open
Abstract
OBJECTIVE To explore the separate and joint associations of childhood adversities and 5-HTTLPR polymorphism as risk factors for substance use disorders among adults. : Design : Retrospective case-control study. SETTING Cases from the substance unit and controls from a representative sample of the adult general population in the metropolitan area of Murcia (Spain). PARTICIPANTS Cases were defined as outpatients 18 years old or older currently in the treatment for alcohol, opioids or cocaine use disorders in the clinical unit. Controls were randomly selected among individuals without substance use disorders who participated in the Psychiatric Enquiry to General Population in Southeast Spain-Murcia (PEGASUS-Murcia) project, a cross-sectional study of a representative sample of the adult general population. In all, 142 cases and 531 controls were interviewed and a subsample of 114 cases (80.3%) and 329 controls (62%) provided a biological sample. EXPOSURE A history of 12 childhood adversities, lifetime mental disorders and sociodemographic variables was assessed with the Composite International Diagnostic Interview (CIDI)version 3.0). Buccal swabs were obtained to genotype the 5-HTTLPR polymorphism with the biallelic and the triallelic classification. MAIN OUTCOME AND MEASURE Multivariable logistic regression models were performed to estimate adjusted ORs and 95% CI. RESULTS Childhood adversities were associated with an elevated risk of substance use disorders (OR=5.77, 95% CI 3.46 to 9.61). Homozygotes for the short allele of the 5-HTTLPR polymorphism also showed the elevated risk of substance use disorders for the biallelic and triallelic classification: (1.97 (1.10 to 3.55) and 2.01 (1.11 to 3.64), respectively). No evidence for gene × environment interactions was found. CONCLUSIONS Childhood adversities and the 5-HTTLPR polymorphism are involved in the aetiology of substance use disorders though findings exploring the existence of a gene-environment interaction were inconclusive.
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Affiliation(s)
- Fernando Navarro-Mateu
- Unidad de Docencia, Investigación y Formación en Salud Mental, Servicio Murciano de Salud, Murcia, Spain
- Departamento de Psicología Básica y Metodología, Universidad de Murcia, Murcia, Spain
- CIBER de Epidemiología y Salud Pública (CIBERESP), Murcia, Spain
| | - Mari Paz Quesada
- Cellular Therapy and Hematopoietic Transplant Unit, Hematology Department, IMIB-Arrixaca, Murcia, Spain
| | - Teresa Escámez
- Biobanco-HUVA-AECC-FFIS, IMIB BIOBANCA-MUR, Murcia, Spain
| | - Mª José Alcaráz
- Fundación para la Formación e Investigación Sanitarias de la Región de Murcia, Murcia, Spain
| | | | - Diego Salmerón
- Departamento de Ciencias Sociosanitarias, Universidad de Murcia, Murcia, Spain
| | - José María Huerta
- CIBER de Epidemiología y Salud Pública (CIBERESP), Murcia, Spain
- Department of Epidemiology, Murcia Health Council, Murcia, Spain
| | - Gemma Vilagut
- CIBER de Epidemiología y Salud Pública (CIBERESP), Murcia, Spain
- Programa de Investigación en Epidemiología y Salud Pública, IMIM (Institut Hospital del Mar d’Investigacions Médiques), Barcelona, Spain
| | - Maria Dolores Chirlaque
- CIBER de Epidemiología y Salud Pública (CIBERESP), Murcia, Spain
- Departamento de Ciencias Sociosanitarias, Universidad de Murcia, Murcia, Spain
- Department of Epidemiology, Murcia Health Council, Murcia, Spain
| | - Carmen Navarro
- CIBER de Epidemiología y Salud Pública (CIBERESP), Murcia, Spain
- Departamento de Ciencias Sociosanitarias, Universidad de Murcia, Murcia, Spain
- Department of Epidemiology, Murcia Health Council, Murcia, Spain
| | - Mathilde Husky
- Laboratoire de Psychologie, Universite de Bordeaux, Bordeaux, France
| | - Ronald C Kessler
- Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts, USA
| | - Jordi Alonso
- CIBER de Epidemiología y Salud Pública (CIBERESP), Murcia, Spain
- Programa de Investigación en Epidemiología y Salud Pública, IMIM (Institut Hospital del Mar d’Investigacions Médiques), Barcelona, Spain
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Timothy A, Benegal V, Shankarappa B, Saxena S, Jain S, Purushottam M. Influence of early adversity on cortisol reactivity, SLC6A4 methylation and externalizing behavior in children of alcoholics. Prog Neuropsychopharmacol Biol Psychiatry 2019; 94:109649. [PMID: 31082414 DOI: 10.1016/j.pnpbp.2019.109649] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 04/29/2019] [Accepted: 05/09/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND Children of parents with alcoholism face considerable stress, and often have externalizing behaviors. Early adversity is known to affect DNA methylation and the functioning of the HPA axis. We investigated the association of early adversity with cortisol reactivity, 5HTTLPR genotype, site specific DNA methylation in the SLC6A4 gene and externalizing behavior in children of alcoholics (COA), and a matched sample of control children. METHODS We examined children of alcoholics (N = 50) and age matched control children (N = 50) for exposure to early adversity (both prenatal and postnatal), assessed their salivary cortisol reactivity and evaluated their levels of emotional and behavioral difficulty in terms of externalizing and internalizing behavior. Site-specific DNA methylation at a previously characterized SLC6A4 region was determined in salivary DNA using pyrosequencing. The 5HTTLPR region of the SLC6A4 gene was also genotyped. RESULTS COA had significantly higher experience of early adversity than control children. Cortisol reactivity was reduced in COA, and negatively correlated with early adversity. Both early adversity and cortisol reactivity correlated with externalizing behavior. SLC6A4 methylation was higher in COA, and correlated with early adversity. SLC6A4 genotype did not show association with any of the variables. CONCLUSION Our study provides further evidence that early adversity is associated with blunted cortisol reactivity, increased site-specific CpG DNA methylation at the SLC6A4 gene, and high externalizing behavior.
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Affiliation(s)
- Anurag Timothy
- Centre for Addiction Medicine, National Institute of Mental Health and Neurosciences, Bangalore 560029, India; Department of Psychiatry, Base Hospital Delhi Cantt, New Delhi 110010, India
| | - Vivek Benegal
- Centre for Addiction Medicine, National Institute of Mental Health and Neurosciences, Bangalore 560029, India
| | - Bhagyalakshmi Shankarappa
- Molecular Genetics Lab, Department of Psychiatry, National Institute of Mental Health and Neurosciences, Bangalore 560029, India; St Johns Medical College Hospital, Bangalore, India
| | - Sachin Saxena
- Department of Psychiatry, Base Hospital Delhi Cantt, New Delhi 110010, India
| | - Sanjeev Jain
- Molecular Genetics Lab, Department of Psychiatry, National Institute of Mental Health and Neurosciences, Bangalore 560029, India
| | - Meera Purushottam
- Molecular Genetics Lab, Department of Psychiatry, National Institute of Mental Health and Neurosciences, Bangalore 560029, India.
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van Dalfsen JH, Markus CR. The serotonin transporter gene-linked polymorphic region (5-HTTLPR) and the sleep-promoting effects of tryptophan: A randomized placebo-controlled crossover study. J Psychopharmacol 2019; 33:948-954. [PMID: 31237183 PMCID: PMC6628462 DOI: 10.1177/0269881119855978] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND The low-expressive short (S) allele of a functional polymorphism (5-HTTLPR) within the serotonin (5-hydroxytriptamine; 5-HT) transporter gene (SLC6A4) has been associated with a reduced functioning of the brain 5-HT system relative to the long (L) allele. As a consequence, the S-allele is found to predispose individuals to a higher risk of sleep quality reduction and clinical insomnia. AIMS The present study investigated whether subchronic pre-sleep tryptophan administration could compensate for this predisposition by improving sleep in 5-HTTLPR S-allele carriers. METHODS In a double-blind placebo-controlled crossover design a sample of homozygous 5-HTTLPR S-allele (n = 47) and L-allele (n = 51) carriers were assessed for subjective (sleep diary) and objective (actigraphy) sleep during a treatment protocol consisting of 1 week of placebo (1000 mg/day) and 1 week of tryptophan administration (1000 mg/day). RESULTS The results support the sleep-promoting effects of tryptophan. Tryptophan improved objective sleep efficiency and objective wake after sleep onset irrespective of allelic variation. There was a marginally significant improvement of subjective sleep quality in the 5-HTTLPR S-allele group but not in the L-allele group following tryptophan relative to placebo intake. In contrast, a significantly poorer sleep quality in the S-allele as opposed to the L-allele group in the placebo condition was not observed in the tryptophan condition. CONCLUSIONS Tryptophan augmentation promises to be a valuable treatment strategy for sleep impairments related to genetic deficiencies in 5-HT functioning.
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Affiliation(s)
- Jens H van Dalfsen
- Jens H van Dalfsen, Department of Neuropsychology
and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University,
Universiteitssingel 40, 6229 ER Maastricht, the Netherlands.
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45
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Suwała J, Machowska M, Wiela-Hojeńska A. Venlafaxine pharmacogenetics: a comprehensive review. Pharmacogenomics 2019; 20:829-845. [PMID: 31368838 DOI: 10.2217/pgs-2019-0031] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Antidepressant response could be from 42 to 50% genetically determined. Venlafaxine (VEN) was the sixth most-prescribed antidepressant in the USA in 2017. Therefore, we reviewed studies which focused on the pharmacogenetics of VEN and found that there is a lack of guidelines for pharmacogenetic testing for VEN. Within investigated genetic polymorphisms, few of them can be indicated as potential predictors of VEN efficacy and tolerance. However, additional pharmacogenetic studies of VEN should be performed to reproduce already obtained results or explain contradictory ones. The individualization of pharmacotherapy is a key issue in providing patients with the highest possible quality of treatment, therefore pharmacogenetic studies should be one of the components of therapy optimization.
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Affiliation(s)
- Justyna Suwała
- Department of Clinical Pharmacology, Faculty of Pharmacy with Division of Laboratory Diagnostics, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Marta Machowska
- Department of Clinical Pharmacology, Faculty of Pharmacy with Division of Laboratory Diagnostics, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Anna Wiela-Hojeńska
- Department of Clinical Pharmacology, Faculty of Pharmacy with Division of Laboratory Diagnostics, Wroclaw Medical University, 50-556 Wroclaw, Poland
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Vizeli P, Meyer zu Schwabedissen HE, Liechti ME. Role of Serotonin Transporter and Receptor Gene Variations in the Acute Effects of MDMA in Healthy Subjects. ACS Chem Neurosci 2019; 10:3120-3131. [PMID: 30589533 DOI: 10.1021/acschemneuro.8b00590] [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] [Indexed: 12/16/2022] Open
Abstract
Methylenedioxymethamphetamine (MDMA; ecstasy) is used recreationally and has been investigated as an adjunct to psychotherapy. Most acute effects of MDMA can be attributed to activation of the serotonin (5-hydroxytryptamine [5-HT]) system. Genetic variants, such as single-nucleotide polymorphisms (SNPs) and polymorphic regions in 5-HT system genes, may contribute to interindividual differences in the acute effects of MDMA. We characterized the effects of common genetic variants within selected genes that encode the 5-HT system (TPH1 [tryptophan 5-hydroxylase 1] rs1800532 and rs1799913, TPH2 [tryptophan 5-hydroxylase 2] rs7305115, HTR1A [5-HT1A receptor] rs6295, HTR1B [5-HT1B receptor] rs6296, HTR2A [5-HT2A receptor] rs6313, and SLC6A4 [serotonin transporter] 5-HTTLPR and rs25531) on the physiological and subjective response to 125 mg of MDMA compared with placebo in 124 healthy subjects. Data were pooled from eight randomized, double-blind, placebo-controlled studies that were conducted in the same laboratory. TPH2 rs7305115, HTR2A rs6313, and SLC6A4 5-HTTLPR polymorphisms tended to moderately alter some effects of MDMA. However, after correcting for multiple comparisons, none of the tested genetic polymorphisms significantly influenced the response to MDMA. Variations in genes that encode key targets in the 5-HT system did not significantly influence the effects of MDMA in healthy subjects. Interindividual differences in the 5-HT system may thus play a marginal role when MDMA is used recreationally or therapeutically.
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Affiliation(s)
- Patrick Vizeli
- Division of Clinical Pharmacology and Toxicology, Department of Biomedicine, Department of Clinical Research, University Hospital Basel, University of Basel, Basel CH-4056, Switzerland
| | | | - Matthias E. Liechti
- Division of Clinical Pharmacology and Toxicology, Department of Biomedicine, Department of Clinical Research, University Hospital Basel, University of Basel, Basel CH-4056, Switzerland
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47
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Li S, Tang J, Gao Y, Thiel CM, Wolf OT. The serotonin transporter gene variants modulate acute stress-induced hippocampus and dorsomedial prefrontal cortex activity during memory retrieval. Psych J 2019; 8:363-377. [PMID: 31264389 DOI: 10.1002/pchj.297] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 04/04/2019] [Accepted: 04/10/2019] [Indexed: 12/28/2022]
Abstract
The short (s) allele of a polymorphism in the promoter region of the serotonin transporter gene (5-HTTLPR) is related to reduced serotonin transporter efficiency and an increased vulnerability to stress and mental disorders. In the present study, we investigated how 5-HTTLPR impacts on memory retrieval under stress and related neural activity by reanalyzing a small genetic neuroimaging data set. Twenty-seven healthy male volunteers participated in both the Trier Social Stress Test (TSST) and a respective control procedure and then their brain activity was measured with functional MRI (fMRI) while they performed an emotional-face-recognition task. Sixteen participants were carriers of the short allele (ss/sl carriers) and 11 were homozygous for the long allele (ll carriers). Genotype groups were compared with respect to stress-related physiological changes, memory performance, and brain activity. No significant genotype-dependent effects on memory performance or cortisol levels were found. The ss/sl carriers showed significantly higher systolic and diastolic blood pressure than the ll carriers, independent of stress. The ss/sl carriers reported stronger stress-induced nervous mood than the ll carriers. Our fMRI data revealed that the ss/sl carriers showed significantly weaker left hippocampus activation and stronger dorsomedial prefrontal cortex (dmPFC) deactivation when retrieving memories under stress as compared with the ll carriers. Subsequent analyses revealed that the distinct hippocampal activation pattern in both genotypes was associated with stress-induced cortisol elevation, while the distinct dmPFC activation pattern in both genotypes was associated with stress-induced changes in reaction times. Our results thus add new evidence that serotonin signaling modulates neural activity in the hippocampus and dmPFC during memory retrieval under acute psychosocial stress.
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Affiliation(s)
- Shijia Li
- Faculty of Education, East China Normal University, Shanghai, China.,Key Laboratory of Brain Functional Genomics (MOE&STCSM), Shanghai Changning-ECNU Mental Health Center, School of Psychology and Cognitive Science, East China Normal University, Shanghai, China.,Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai, China
| | - Jun Tang
- Key Laboratory of Brain Functional Genomics (MOE&STCSM), Shanghai Changning-ECNU Mental Health Center, School of Psychology and Cognitive Science, East China Normal University, Shanghai, China
| | - Yan Gao
- Key Laboratory of Brain Functional Genomics (MOE&STCSM), Shanghai Changning-ECNU Mental Health Center, School of Psychology and Cognitive Science, East China Normal University, Shanghai, China
| | - Christiane M Thiel
- Biological Psychology Lab, Department of Psychology, School of Medicine and Health Sciences, Research Center Neurosensory Science and Systems, Cluster of Excellence Hearing4all, Carl von Ossietzky University, Oldenburg, Germany
| | - Oliver T Wolf
- Department of Cognitive Psychology, Institute of Cognitive Neuroscience, Ruhr University Bochum, Bochum, Germany
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Ha J, Jun HJ, Shin H, Chung IJ, Park E, Min SK, Kim E. Predicting Behavior Problems in Korean Preschoolers: Interactions of the SLC6A4 Gene and Maternal Negative Affectivity. CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE 2019; 17:200-210. [PMID: 30905120 PMCID: PMC6478087 DOI: 10.9758/cpn.2019.17.2.200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 03/22/2018] [Accepted: 03/28/2018] [Indexed: 11/18/2022]
Abstract
Objective This study aimed to investigate whether maternal negative affectivity (MNA) moderates the effect of genetic polymorphism of SLC6A4 on behavior problems in children. Methods Study participants comprised 143 preschoolers and their mothers from South Korea. The Childhood Behavior Checklist and Emotionality, Activity, and Sociability adult scale were used to measure child behavior and maternal affectivity. DNA from saliva was genotyped to determine serotonin transporter polymorphism. Results MNA appeared to exert effects in externalizing (b=5.78, p<0.001) and internalizing problems (b=6.09, p< 0.001). Interaction between SLCA4 polymorphism and MNA showed effects on externalizing (b=−7.62, p<0.01) and internalizing problems (b=−9.77, p<0.01). Children with two short alleles showed considerable differences in both externalizing and internalizing problems according to MNA; however, children with one short allele or none showed relatively few differences in behavior problems due to maternal affectivity. Conclusion The effect of SLC6A4 polymorphism on child behavior seemed to be moderated by MNA. In addition, the impact of MNA was found to vary based on a child’s genetic risk. High MNA may trigger the risk allele while low MNA causes the risk allele to illicit less behavior problems. Children with two short variants of the SLC6A4 gene may benefit from intervention that modulates MNA.
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Affiliation(s)
- Junghee Ha
- Department of Psychiatry and Institute of Behavioral Science in Medicine, Yonsei University College of Medicine
| | - Hey Jung Jun
- Department of Child and Family Studies, College of Human Ecology, Yonsei University
| | - Hyewon Shin
- Department of Child Studies, Seokyeong University
| | | | - Eunmie Park
- Department of Social Welfare, Seoul Jangsin University
| | - Sung Kil Min
- Department of Neuropsychiatry, Hyoja Geriatric Hospital
| | - Eunjoo Kim
- Department of Psychiatry and Institute of Behavioral Science in Medicine, Yonsei University College of Medicine
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Pallesen S, Jacobsen DP, Nielsen MB, Gjerstad J. The 5-HTTLPR rs25531 L AL A-genotype increases the risk of insomnia symptoms among shift workers. Sleep Med 2019; 60:224-229. [PMID: 31213395 DOI: 10.1016/j.sleep.2019.04.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 04/12/2019] [Accepted: 04/15/2019] [Indexed: 12/16/2022]
Abstract
BACKGROUND Previous studies indicate that shift work tolerance may be associated with individual factors including genetic variability in the gene encoding the serotonin transporter 5-HTT (SLC6A4). The present study aimed to explore the interaction between work schedule (shift work versus non-shift work), genetic variability in SLC6A4 and insomnia symptoms. METHODS The study was based on a national probability sample survey of 987 Norwegian employees drawn from The Norwegian Central Employee Register by Statistics Norway. Insomnia symptoms were assessed by three items reflecting problems with sleep onset, sleep maintenance, and early morning awakenings. Genotyping concerning SLC6A4 (the 5-HTTLPR S versus L and the SNP rs25531 A versus G) was carried out using a combination of gel-electrophoresis and TaqMan assay. RESULTS Using the LALA genotype as a reference a main effect of the SS genotype (B = 0.179; 95% CI = 0.027-0.330) was found. In addition, a main effect of work schedule (0 = non shift, 1 = shift work) was found (B = 0.504; 95% CI = 0.185-0.823). The genotype x work schedule interaction was significant for all genotypes; SLA (B = -0.590; 95% CI = -0.954-0.216), LALG (B = -0.879; 95% CI = -1.342-0.415), SLG (B = -0.705; 95% CI = -1.293-0.117) and SS (B = -0.773; 95% CI = -1.177-0.369) indicating higher insomnia symptom scores among LALA-participants compared to participants with other genotypes when working shifts. CONCLUSIONS The ability to cope with shift work is associated with the combination of the SLC6A4 variants 5-HTTLPR and SNP rs25531. Our findings demonstrated that the LALA-genotype increases the risk of insomnia symptoms among shift workers.
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Affiliation(s)
- Ståle Pallesen
- Department for Psychosocial Science, University of Bergen, Norway; Norwegian Competence Center for Sleep Disorders, Haukeland University Hospital, Norway.
| | | | - Morten B Nielsen
- Department for Psychosocial Science, University of Bergen, Norway; National Institute of Occupational Health, Oslo, Norway
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Prevention of Early Substance Use Mediates, and Variation at SLC6A4 Moderates, SAAF Intervention Effects on OXTR Methylation. PREVENTION SCIENCE : THE OFFICIAL JOURNAL OF THE SOCIETY FOR PREVENTION RESEARCH 2019; 19:90-100. [PMID: 27655391 DOI: 10.1007/s11121-016-0709-5] [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] [Indexed: 10/21/2022]
Abstract
The Strong African American Family (SAAF) program has been shown to have a variety of short and long-term benefits for participating youth and families. However, biological mechanisms potentially influencing long-term effects on resilience in young adulthood have not been examined. In the current investigation, we examine the effects of SAAF on methylation of the OXTR gene in young adulthood, focusing on a regulatory region previously identified to be both responsive to stress and implicated in resilience. Using the subsample of participants from the original study for whom methylation data was available (N = 388), we replicated the previously reported G × E effect on prevention of early substance use and then examined whether there would also be a moderated effect on OXTR methylation in early adulthood, with "s" allele carriers, but not "LL" participants, showing a significant indirect effect of SAAF on OXTR methylation. Results suggest that for susceptible youth (i.e., "s" allele carriers), preventive intervention may "get under the skin," in a manner potentially beneficial for long-term outcomes. Implications for examination of OXTR methylation in future prevention research are discussed.
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