1
|
Bazovkina DV, Fursenko DV, Naumenko VS, Kulikov AV. The Role of C1473G Polymorphism in Mouse Triptophan Hydroxylase 2 Gene in the Acute Effects of Ethanol on the c-fos Gene Expression and Metabolism of Biogenic Amines in the Brain. BIOCHEMISTRY (MOSCOW) 2023; 88:291-302. [PMID: 37076278 DOI: 10.1134/s000629792303001x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
Abstract
Tryptophan hydroxylase 2 is a key enzyme in the synthesis of the neurotransmitter serotonin, which plays an important role in the regulation of behavior and various physiological functions. We studied the effect of acute ethanol administration on the expression of the early response c-fos gene and metabolism of serotonin and catecholamines in the brain structures of B6-1473C and B6-1473G congenic mouse strains differing in the single-nucleotide substitution C1473G in the Tph2 gene and activity of the encoded enzyme. Acute alcoholization led to a significant upregulation of the c-fos gene expression in the frontal cortex and striatum of B6-1473G mice and in the hippocampus of B6-1473C mice and caused a decrease in the index of serotonin metabolism in the nucleus accumbens in B6-1473C mice and in the hippocampus and striatum of B6-1473G mice, as well as to the decrease in the norepinephrine level in the hypothalamus of B6-1473C mice. Therefore, the C1473G polymorphism in the Tph2 gene has a significant effect of acute ethanol administration on the c-fos expression pattern and metabolism of biogenic amines in the mouse brain.
Collapse
Affiliation(s)
- Darya V Bazovkina
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, 630090, Russia.
| | - Dariya V Fursenko
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Vladimir S Naumenko
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Aleksandr V Kulikov
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, 630090, Russia
| |
Collapse
|
2
|
Fletcher PJ, Li Z, Ji X, Higgins GA, Funk D, Lê A. Effects of pimavanserin and lorcaserin on alcohol self-administration and reinstatement in male and female rats. Neuropharmacology 2022; 215:109150. [DOI: 10.1016/j.neuropharm.2022.109150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 04/25/2022] [Accepted: 05/23/2022] [Indexed: 11/27/2022]
|
3
|
da Silva Junior FC, Araujo RML, Sarmento ASC, de Carvalho MM, Fernandes HF, Yoshioka FKN, Pinto GR, Motta FJN, Canalle R. The association of A-1438G and T102C polymorphisms in HTR2A and 120 bp duplication in DRD4 with alcoholic dependence in a northeastern Brazilian male population. GENE REPORTS 2020. [DOI: 10.1016/j.genrep.2020.100889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
4
|
Popova NK, Ilchibaeva TV, Antonov EV, Pershina AV, Bazovkina DV, Naumenko VS. On the interaction between BDNF and serotonin systems: The effects of long-term ethanol consumption in mice. Alcohol 2020; 87:1-15. [PMID: 32330588 DOI: 10.1016/j.alcohol.2020.04.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 04/14/2020] [Accepted: 04/14/2020] [Indexed: 01/02/2023]
Abstract
We investigated the effect of chronic (6 weeks) consumption of 10% alcohol on the principal elements of BDNF (BDNF, proBDNF, p75, and TrkB receptors) and 5-HT (5-HT, 5-HIAA, tryptophan hydroxylase-2 [Tph-2], 5-HT transporter [5-HTT], 5-HT1A, 5-HT2A, and 5-HT7 receptors) systems in the brain of C57Bl/6 mice. BDNF mRNA level in the raphe nuclei area and BDNF protein level in the hippocampus were lowered in ethanol-treated mice. The increase in proBDNF protein level in the raphe nuclei area, cortex, and amygdala and the increase of p75 receptor protein levels in the raphe nuclei area were revealed after ethanol exposure. Alcohol intake reduced the protein level and increased the activity of Tph-2, the key enzyme for serotonin biosynthesis in the brain, and increased the main 5-HT metabolite 5-HIAA level and 5-HIAA/5-НТ ratio as well as the 5-HT7 receptor mRNA level in the raphe nuclei area. In the cortex, 5-HT2A receptor protein level was reduced, and 5-HIAA/5-HT ratio was increased. These data showed considerable impact of alcoholization on the BDNF system, resulting in proBDNF and p75 receptor expression enhancement. Alcohol-induced changes in BDNF and 5-HT systems were revealed in the raphe nuclei area where the majority of the cell bodies of the 5-HT neurons are localized, as well as in the cortex, hippocampus, and amygdala. Our data suggest that the BDNF/5-HT interaction contributes to the mechanism underlying chronic alcohol-induced neurodegenerative disorders.
Collapse
|
5
|
Silva TO, Jung I, Trott A, Bica CG, Casarin JN, Fortuna PC, Ribeiro EE, de Assis FD, Figueira GC, Barbisan F, Fernanda Manica-Cattani M, Bonadiman BSR, Houenou LJ, Prado-Lima PASD, da Cruz IBM. Association between T102C 5-HT2A receptor gene polymorphism and 5-year mortality risk among Brazilian Amazon riparian elderly population. Am J Hum Biol 2017; 29. [PMID: 28488759 DOI: 10.1002/ajhb.23016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 01/16/2017] [Accepted: 04/17/2017] [Indexed: 01/30/2023] Open
Abstract
OBJECTIVE Serotonin (5-HT) is a pleiotropic molecule that exerts several functions on brain and peripheral tissues via different receptors. The gene for the 5-HT2A receptor shows some variations, including a T102C polymorphism, that have been associated with increased risk of neuropsychiatric and vascular disorders. However, the potential impact of 5-HT2A imbalance caused by genetic variations on the human lifespan has not yet been established. METHODS We performed a prospective study involving an Amazon riparian elderly free-living population in Maués City, Brazil, with a 5-year follow-up. Out of a cohort of 637 subjects selected in July, 2009, we genotyped 471 individuals, including 209 males (44.4%) and 262 females (55.6%), all averaging 72.3 ± 7.8 years of age (ranging from 60 to 100 years). RESULTS The T102C-SNP genotypic frequencies were 14.0% TT, 28.0% CC, and 58.0% CT. From 80 elderly individuals who died during the period investigated, we observed significantly (P = .005) higher numbers of TT carriers (27.3%) and CC carriers (21.2%), compared to heterozygous CT carriers (12.5%). Cox-regression analysis showed that association between the T102C-SNP and elderly survival was independent of age, sex, and other health variables. CONCLUSIONS Our findings strongly suggest that imbalance in 5-HT2A may cause significant disturbances that lead to an increased susceptibility to death for individuals who are over 60 years of age.
Collapse
Affiliation(s)
- Tális O Silva
- Programa de Pós-Graduação em Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Rio Grande do Sul, Brazil
| | - Ivo Jung
- Programa de Pós-Graduação em Farmacologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Rio Grande do Sul, Brazil
| | - Alexis Trott
- Programa de Pós-Graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Rio Grande do Sul, Brazil
| | - Cláudia G Bica
- Programa de Pós-Graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Rio Grande do Sul, Brazil
| | - Jeferson N Casarin
- Laboratory of Molecular Aspects Associated with Genetic Diseases, University of Western Santa Catarina, Unoesc, Brazil
| | - Paola C Fortuna
- Laboratory of Molecular Aspects Associated with Genetic Diseases, University of Western Santa Catarina, Unoesc, Brazil
| | - Euler E Ribeiro
- Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
| | - Fernanda D de Assis
- Laboratório de Biogenômica, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Rio Grande do Sul, Brazil
| | - Guilherme C Figueira
- Laboratório de Biogenômica, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Rio Grande do Sul, Brazil
| | - Fernanda Barbisan
- Programa de Pós-Graduação em Farmacologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Rio Grande do Sul, Brazil
| | - Maria Fernanda Manica-Cattani
- Programa de Pós-Graduação em Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Rio Grande do Sul, Brazil
| | - Beatriz S R Bonadiman
- Programa de Pós-Graduação em Farmacologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Rio Grande do Sul, Brazil
| | - Lucien J Houenou
- Biotechnology Department, Forsyth Technical Community College, 2100 Silas Creek Parkway, Winston-Salem, North Carolina, 27103, USA
| | | | - Ivana B M da Cruz
- Programa de Pós-Graduação em Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Rio Grande do Sul, Brazil.,Programa de Pós-Graduação em Farmacologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Rio Grande do Sul, Brazil.,Laboratório de Biogenômica, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Rio Grande do Sul, Brazil
| |
Collapse
|
6
|
Rinker JA, Mulholland PJ. Promising pharmacogenetic targets for treating alcohol use disorder: evidence from preclinical models. Pharmacogenomics 2017; 18:555-570. [PMID: 28346058 DOI: 10.2217/pgs-2016-0193] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Inherited genetic variants contribute to risk factors for developing an alcohol use disorder, and polymorphisms may inform precision medicine strategies for treating alcohol addiction. Targeting genetic mutations linked to alcohol phenotypes has provided promising initial evidence for reducing relapse rates in alcoholics. Although successful in some studies, there are conflicting findings and the reports of adverse effects may ultimately limit their clinical utility, suggesting that novel pharmacogenetic targets are necessary to advance precision medicine approaches. Here, we describe promising novel genetic variants derived from preclinical models of alcohol consumption and dependence that may uncover disease mechanisms that drive uncontrolled drinking and identify novel pharmacogenetic targets that facilitate therapeutic intervention for the treatment of alcohol use disorder.
Collapse
Affiliation(s)
- Jennifer A Rinker
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425, USA.,Department of Psychiatry & Behavioral Sciences, Charleston Alcohol Research Center, Addiction Sciences Division, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Patrick J Mulholland
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425, USA.,Department of Psychiatry & Behavioral Sciences, Charleston Alcohol Research Center, Addiction Sciences Division, Medical University of South Carolina, Charleston, SC 29425, USA
| |
Collapse
|
7
|
Effect of 5-HT2A Receptor Polymorphisms, Work Stressors, and Social Support on Job Strain among Petroleum Workers in Xinjiang, China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:ijerph13121258. [PMID: 27999378 PMCID: PMC5201399 DOI: 10.3390/ijerph13121258] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 12/03/2016] [Accepted: 12/14/2016] [Indexed: 11/25/2022]
Abstract
Previous studies have shown that work stressors and social support influence job strain. However, few studies have examined the impact of individual differences on job strain. In Xinjiang, there are a large number of petroleum workers in arid deserts. The present study investigated the effects of work stressors, social support, and 5-hydroxytryptamine receptor (5-HTR2A) genotype on the etiology of job strain among petroleum workers in Xinjiang. A cross-sectional study was carried out between January and August 2013. A total of 700 workers were selected by a three-stage stratified sampling method. 5-HTR2A genotypes were determined with the SNaPshot single nucleotide polymorphism assay. Work stressors and job strain were evaluated with the Occupational Stress Inventory-Revised questionnaire. Social support was assessed with the Chinese Social Support Rating Scale. Work overload and responsibility were significantly associated with job strain. Low social support was associated with severe vocational and interpersonal strain. High social support was a protective factor against job strain (odds ratio (OR) = 0.32, 95% confidence interval (CI): 0.14–0.76). The CC genotype of rs6313 and the AA genotype of rs2070040 were linked to severe vocational strain. Ordinal logistic regression analysis revealed that the CC genotype of rs6313 was linked to higher risk of job strain than the TT genotype (OR = 1.88, 95% CI: 1.10–3.23). These data provide evidence that work stressors, low social support, and 5-HTR2A gene polymorphism contributes to the risk of job strain.
Collapse
|
8
|
Vaz-Leal FJ, Ramos-Fuentes MI, Rodríguez-Santos L, Flores-Mateos IS, Franco-Zambrano A, Rojo-Moreno L, Beato-Fernández L. Neurobiological and Clinical Variables Associated with Alcohol Abuse in Bulimia Nervosa. EUROPEAN EATING DISORDERS REVIEW 2015; 23:185-92. [DOI: 10.1002/erv.2352] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Revised: 01/16/2015] [Accepted: 02/08/2015] [Indexed: 02/05/2023]
Affiliation(s)
- Francisco J. Vaz-Leal
- Faculty of Medicine; University of Extremadura; Badajoz Spain
- Mental Health and Eating Disorders Unit (University Hospital Network); Badajoz Spain
| | | | | | | | | | - Luis Rojo-Moreno
- Faculty of Medicine; University of Valencia; Valencia Spain
- Eating Disorders Unit; Hospital la Fe; Valencia Spain
| | - Luis Beato-Fernández
- Faculty of Medicine; University of Castilla-La Mancha; Ciudad Real Spain
- Eating Disorders Unit; General Hospital of Ciudad Real; Ciudad Real Spain
| |
Collapse
|
9
|
Bazovkina DV, Lichman DV, Kulikov AV. The C1473G polymorphism in the Tryptophan hydroxylase-2 gene: Involvement in ethanol-related behavior in mice. Neurosci Lett 2015; 589:79-82. [DOI: 10.1016/j.neulet.2015.01.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 01/14/2015] [Accepted: 01/16/2015] [Indexed: 01/19/2023]
|
10
|
Kim JH, Park BL, Cheong HS, Bae JS, Kim LH, Kim JW, Lee BC, Seo CH, Kang TC, Park SH, Choi IG, Shin HD. Association BetweenHTR7Genetic Polymorphisms and Alcohol Dependence, Using the Alcohol Use Disorders Identification Test (AUDIT). Alcohol Clin Exp Res 2014; 38:2354-61. [DOI: 10.1111/acer.12482] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Accepted: 05/05/2014] [Indexed: 12/16/2022]
Affiliation(s)
- Jeong-Hyun Kim
- Department of Life Science; Sogang University; Seoul Korea
- Research Institute for Basic Science; Sogang University; Seoul Korea
| | - Byung-Lae Park
- Department of Genetic Epidemiology; SNP Genetics, Inc.; Seoul Korea
| | - Hyun Sub Cheong
- Department of Genetic Epidemiology; SNP Genetics, Inc.; Seoul Korea
| | - Joon Seol Bae
- Laboratory of Translational Genomics; Samsung Medical Center; Samsung Genome Institute; Seoul Korea
| | - Lyoung Hyo Kim
- Department of Life Science; Sogang University; Seoul Korea
- Department of Genetic Epidemiology; SNP Genetics, Inc.; Seoul Korea
| | - Jee Wook Kim
- Department of Neuropsychiatry; Hallym University Dongtan Sacred Heart Hospital; Hwaseong Korea
- Burn Institute; Hallym University; Seoul Korea
| | - Byoung Chul Lee
- Burn Institute; Hallym University; Seoul Korea
- Department of Neuropsychiatry; Hangang Sacred Heart Hospital; Hallym University; Seoul Korea
| | - Cheong Hoon Seo
- Burn Institute; Hallym University; Seoul Korea
- Department of Rehabilitation Medicine; Hangang Sacred Heart Hospital; Hallym University; Seoul Korea
| | - Tae-Cheon Kang
- Department of Anatomy and Neurobiology; Institute of Epilepsy Research; College of Medicine; Hallym University; Chuncheon Korea
| | - Sun-Hee Park
- Keyo Medical Foundation; Keyo Hospital; Uiwang Korea
| | - Ihn-Geun Choi
- Burn Institute; Hallym University; Seoul Korea
- Department of Neuropsychiatry; Hallym University Kangnam Sacred Heart Hospital; Seoul Korea
| | - Hyoung Doo Shin
- Department of Life Science; Sogang University; Seoul Korea
- Research Institute for Basic Science; Sogang University; Seoul Korea
| |
Collapse
|
11
|
The role of serotonin in drug use and addiction. Behav Brain Res 2014; 277:146-92. [PMID: 24769172 DOI: 10.1016/j.bbr.2014.04.007] [Citation(s) in RCA: 209] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 04/04/2014] [Accepted: 04/05/2014] [Indexed: 12/26/2022]
Abstract
The use of psychoactive drugs is a wide spread behaviour in human societies. The systematic use of a drug requires the establishment of different drug use-associated behaviours which need to be learned and controlled. However, controlled drug use may develop into compulsive drug use and addiction, a major psychiatric disorder with severe consequences for the individual and society. Here we review the role of the serotonergic (5-HT) system in the establishment of drug use-associated behaviours on the one hand and the transition and maintenance of addiction on the other hand for the drugs: cocaine, amphetamine, methamphetamine, MDMA (ecstasy), morphine/heroin, cannabis, alcohol, and nicotine. Results show a crucial, but distinct involvement of the 5-HT system in both processes with considerable overlap between psychostimulant and opioidergic drugs and alcohol. A new functional model suggests specific adaptations in the 5-HT system, which coincide with the establishment of controlled drug use-associated behaviours. These serotonergic adaptations render the nervous system susceptible to the transition to compulsive drug use behaviours and often overlap with genetic risk factors for addiction. Altogether we suggest a new trajectory by which serotonergic neuroadaptations induced by first drug exposure pave the way for the establishment of addiction.
Collapse
|
12
|
Cao J, Liu X, Han S, Zhang CK, Liu Z, Li D. Association of the HTR2A gene with alcohol and heroin abuse. Hum Genet 2014; 133:357-65. [PMID: 24178752 PMCID: PMC4085799 DOI: 10.1007/s00439-013-1388-y] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Accepted: 12/28/2012] [Indexed: 12/14/2022]
Abstract
Positive genetic associations of rs6313 (102T/C at exon 1) and rs6311 (-1438A/G) on the 5-hydroxytryptamine (serotonin) 2A receptor gene (HTR2A or 5-HT2A) were reported for alcohol and drug abuse; however, other association studies failed to produce consistent results supporting the susceptibility of the two single nucleotide polymorphisms (SNPs). To clarify the associations of the HTR2A gene with substance use disorders, we performed a meta-analysis based on the genotypes from the available candidate gene association studies of the two SNPs with alcohol and drug abuse from multiple populations. Evidence of association was found for HTR2A rs6313 in all the combined studies (e.g., allelic P = 0.0048 and OR 0.86, 95 % CI 0.77-0.95) and also in the combined studies of alcohol dependence (abuse) (e.g., allelic P = 0.0001 and OR 0.71, 95 % CI 0.59-0.85). The same association trend was also observed in the Study of Addiction: Genetics and Environment datasets. The meta-analysis supports a contribution of the HTR2A gene to the susceptibility to substance use disorders, particularly alcohol dependence.
Collapse
Affiliation(s)
- Jian Cao
- Department of Pathology, School of Medicine, Yale University, New Haven, CT, 06511, USA
| | | | | | | | | | | |
Collapse
|
13
|
Serafine KM, France CP. Restricted access to standard or high fat chow alters sensitivity of rats to the 5-HT(2A/2C) receptor agonist 1-(2,5-dimethoxy-4-methylphenyl)-2-aminopropane. Behav Pharmacol 2014; 25:44-52. [PMID: 24346289 PMCID: PMC5287359 DOI: 10.1097/fbp.0000000000000015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Feeding conditions can impact sensitivity to drugs acting on dopamine receptors; less is known about the impact of feeding conditions on the effects of drugs acting on serotonin (5-HT) receptors. This study examined the effects of feeding conditions on sensitivity to the direct-acting 5-HT(2A/2C) receptor agonist 1-(2,5-dimethoxy-4-methylphenyl)-2-aminopropane (DOM; 0.1-3.2 mg/kg) and the direct-acting dopamine D3/D2 receptor agonist quinpirole (0.0032-0.32 mg/kg). Male Sprague-Dawley rats had free access (11 weeks), followed by restricted access (6 weeks), to high fat (34.3%, n=8) or standard (5.7% fat; n=7) chow. Rats eating high fat chow became insulin resistant and gained more weight than rats eating standard chow. Free access to high fat chow did not alter sensitivity to DOM-induced head twitch but increased sensitivity to quinpirole-induced yawning. Restricting access to high fat or standard chow shifted the DOM-induced head twitch dose-response curve to the right and shifted the quinpirole-induced yawning dose-response curve downward in both groups of rats. Some drugs of abuse and many therapeutic drugs act on 5-HT and dopamine systems; these results show that feeding conditions impact sensitivity to drugs acting on these systems, thereby possibly affecting vulnerability to abuse, as well as the therapeutic effectiveness of drugs.
Collapse
Affiliation(s)
- Katherine M Serafine
- Departments of aPharmacology bPsychiatry, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | | |
Collapse
|
14
|
Jakubczyk A, Klimkiewicz A, Kopera M, Krasowska A, Wrzosek M, Matsumoto H, Burmeister M, Brower KJ, Wojnar M. The CC genotype in the T102C HTR2A polymorphism predicts relapse in individuals after alcohol treatment. J Psychiatr Res 2013; 47:527-33. [PMID: 23321485 PMCID: PMC3581721 DOI: 10.1016/j.jpsychires.2012.12.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2012] [Revised: 12/09/2012] [Accepted: 12/14/2012] [Indexed: 12/14/2022]
Abstract
The serotonin system is hypothesized to contribute to predisposition and course of alcohol dependence. However, the potential association between the T102C polymorphism (rs6313) in the type 2A serotonin receptor (HTR2A) gene and treatment outcomes in alcohol dependence has not been investigated. The aim of the study was to assess the contribution of this genetic polymorphism as a predictor of relapse in relation to other previously identified predictors. A sample of 254 alcohol dependent subjects, were recruited in alcohol treatment centers in Warsaw, Poland and prospectively assessed at baseline and follow-up after 12 months. At baseline, information about demographics, psychopathological symptoms and alcohol problems was obtained. The stop-signal task was performed and blood samples for genetic analysis of HTR2A T102C (rs6313) were collected. Relapse was defined as any drinking during the follow-up period. The statistical analysis showed that the CC genotype was significantly associated with increased relapse. Other significant factors were baseline depressive symptoms, number of drinking days during the 3 months prior to the baseline assessment, severity of alcohol-related problems, and a lifetime history of impulsive suicide attempts. Logistic regression analysis with and without the genetic factor revealed that adding the genetic factor increased the R square value by about 4%, with the CC genotype in the T102C polymorphism being the strongest predictor of relapse (OR = 2.32). The significant influence on relapse of the CC genotype, which is associated with fewer 5-HT2A receptors in the central nervous system, suggests the possibility that this genetic polymorphism could influence response to serotonergic medications.
Collapse
Affiliation(s)
- Andrzej Jakubczyk
- Department of Psychiatry, Medical University of Warsaw, Warsaw, Poland
| | - Anna Klimkiewicz
- Department of Psychiatry, Medical University of Warsaw, Warsaw, Poland
| | - Maciej Kopera
- Department of Psychiatry, Medical University of Warsaw, Warsaw, Poland
| | | | - Małgorzata Wrzosek
- Department of Pharmacogenomics, Medical University of Warsaw, Warsaw, Poland
| | - Halina Matsumoto
- Department of Psychiatry, Medical University of Warsaw, Warsaw, Poland
| | - Margit Burmeister
- Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
| | - Kirk J. Brower
- Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
| | - Marcin Wojnar
- Department of Psychiatry, Medical University of Warsaw, Warsaw, Poland,Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
| |
Collapse
|
15
|
Ayanwuyi LO, Carvajal F, Lerma-Cabrera JM, Domi E, Björk K, Ubaldi M, Heilig M, Roberto M, Ciccocioppo R, Cippitelli A. Role of a genetic polymorphism in the corticotropin-releasing factor receptor 1 gene in alcohol drinking and seeking behaviors of marchigian sardinian alcohol-preferring rats. Front Psychiatry 2013; 4:23. [PMID: 23630503 PMCID: PMC3624086 DOI: 10.3389/fpsyt.2013.00023] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Accepted: 04/02/2013] [Indexed: 11/13/2022] Open
Abstract
Marchigian Sardinian alcohol-preferring (msP) rats exhibit innate preference for alcohol, are highly sensitive to stress and stress-induced alcohol seeking. Genetic analysis showed that over-expression of the corticotropin-releasing factor (CRF) system of msP rats is correlated with the presence of two single nucleotide polymorphisms (SNPs) occurring in the promoter region (position -1836 and -2097) of the CRF1 receptor (CRF1-R) gene. Here we examined whether these point mutations were associated to the innate alcohol preference, stress-induced drinking, and seeking. We have recently re-derived the msP rats to obtain two distinct lines carrying the wild type (GG) and the point mutations (AA), respectively. The phenotypic characteristics of these two lines were compared with those of unselected Wistar rats. Both AA and GG rats showed similar patterns of voluntary alcohol intake and preference. Similarly, the pharmacological stressor yohimbine (0.0, 0.625, 1.25, and 2.5 mg/kg) elicited increased operant alcohol self-administration under fixed and progressive ratio reinforcement schedules in all three lines. Following extinction, yohimbine (0.0, 0.625, 1.25, and 2.5 mg/kg) significantly reinstated alcohol seeking in the three groups. However, at the highest dose this effect was no longer evident in AA rats. Treatment with the CRF1-R antagonist antalarmin (0, 5, 10, and 20 mg/kg) significantly reduced alcohol-reinforced lever pressing in the AA line (10 and 20 mg/kg) while a weaker or no effect was observed in the Wistar and the GG group, respectively. Finally, antalarmin significantly reduced yohimbine-induced increase in alcohol drinking in all three groups. In conclusion, these specific SNPs in the CRF1-R gene do not seem to play a primary role in the expression of the msP excessive drinking phenotype or stress-induced drinking but may be associated with a decreased threshold for stress-induced alcohol seeking and an increased sensitivity to the effects of pharmacological blockade of CRF1-R on alcohol drinking.
Collapse
Affiliation(s)
- Lydia O Ayanwuyi
- Pharmacology Unit, School of Pharmacy, University of Camerino Camerino, Italy
| | | | | | | | | | | | | | | | | | | |
Collapse
|