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Systematic identification of candidate genes associated with aggressive behavior: A neurogenetic approach. GENE REPORTS 2022. [DOI: 10.1016/j.genrep.2022.101493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Yang P, Yang M, Li P, Cao D, Gong D, Lv J, Pu L, Huang S, Liang Y. A Meta-Analysis of 5-Hydroxytryptamine Receptor 1B Polymorphisms With Risk of Major Depressive Disorder and Suicidal Behavior. Front Psychiatry 2021; 12:696655. [PMID: 34322042 PMCID: PMC8311000 DOI: 10.3389/fpsyt.2021.696655] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 06/17/2021] [Indexed: 11/17/2022] Open
Abstract
Purpose: Previous association studies have investigated whether genetic polymorphisms in HTR1B influenced individuals' susceptibility to major depressive disorder (MDD), anti-depressant response (ADR) and suicidal behavior. However, equivocal evidence was obtained. In this meta-analysis, we aimed to examine the association of HTR1B polymorphisms with risk of MDD, ADR and suicidal behavior. Materials and Methods: Studies evaluating the association between HTR1B polymorphisms and risk of MDD, ADR and suicidal behavior were searched in Pubmed, Ovid Medline, web of science and China National Knowledge Infrastructure databases. Summary odds ratios (ORs), 95 % confidence intervals (CIs) and p-values were calculated using a fixed or random effects model. Results: Meta-analysis findings revealed a significantly increased risk of MDD with rs6296 GC and GC/CC genotypes (GC vs. GG: OR = 1.26, 95% CI, 1.07-1.48; GC/CC vs. GG: OR = 1.22, 95% CI, 1.04-1.43, respectively). Moreover, rs6298 CT genotype was significantly associated with an increased risk of suicidal behavior (CT vs. CC: OR = 1.48, 95% CI, 1.16-1.88). However, both rs6296 and rs130058 were not significant risk factors for lethal suicidal behavior. Conclusion: This meta-analysis identified that rs6296 and rs6298 in HTR1B may be significantly related to the risk of MDD and lethality of suicide attempts, respectively. Further studies are required to assess the markers in larger cohorts.
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Affiliation(s)
- Pingliang Yang
- Department of Anesthesiology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - Mengchang Yang
- Department of Anesthesiology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, China
| | - Peng Li
- Department of Anesthesiology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, China
| | - Dejun Cao
- Department of Anesthesia, Chengdu Second People's Hospital, Chengdu, China
| | - Daoyin Gong
- Department of Pathology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jiahua Lv
- Department of Pathology and Pathophysiology, Chengdu Medical College, Chengdu, China
| | - Linmei Pu
- Department of Pathology and Pathophysiology, Chengdu Medical College, Chengdu, China
| | - Sizhou Huang
- Development and Regeneration Key Laboratory of Sichuan Province, Department of Anatomy and Histology and Embryology, Chengdu Medical College, Chengdu, China
| | - Yundan Liang
- Department of Pathology and Pathophysiology, Chengdu Medical College, Chengdu, China
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Xia X, Ding M, Xuan JF, Xing JX, Pang H, Yao J, Wu X, Wang BJ. Effects of HTR1B 3' region polymorphisms and functional regions on gene expression regulation. BMC Genet 2020; 21:79. [PMID: 32689951 PMCID: PMC7372893 DOI: 10.1186/s12863-020-00886-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 07/12/2020] [Indexed: 12/21/2022] Open
Abstract
Background The HTR1B gene encodes the 5-hydroxytryptamine (5-HT1B) receptor, which is involved in a variety of brain activities and mental disorders. The regulatory effects of non-coding regions on genomic DNA are one of many reasons for the cause of genetic-related diseases. Post-transcriptional regulation that depends on the function of 3′ regulatory regions plays a particularly important role. This study investigated the effects, on reporter gene expression, of several haplotypes of the HTR1B gene (rs6297, rs3827804, rs140792648, rs9361234, rs76194807, rs58138557, and rs13212041) and truncated fragments in order to analyze the function of the 3′ region of HTR1B. Results We found that the haplotype, A-G-Del-C-T-Ins-A, enhanced the expression level compared to the main haplotype; A-G-Del-C-G-Ins-A; G-G-Del-C-G-Ins-G decreased the expression level. Two alleles, rs76194807T and rs6297G, exhibited different relative luciferase intensities compared to their counterparts at each locus. We also found that + 2440 ~ + 2769 bp and + 1953 ~ + 2311 bp regions both had negative effects on gene expression. Conclusions The 3′ region of HTR1B has a regulatory effect on gene expression, which is likely closely associated with the interpretation of HTR1B-related disorders. In addition, the HTR1B 3′ region includes several effector binding sites that induce an inhibitory effect on gene expression.
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Affiliation(s)
- Xi Xia
- School of Forensic Medicine, China Medical University, No. 77 Puhe Road, Shenbei New District, Shenyang, 110122, China
| | - Mei Ding
- School of Forensic Medicine, China Medical University, No. 77 Puhe Road, Shenbei New District, Shenyang, 110122, China
| | - Jin-Feng Xuan
- School of Forensic Medicine, China Medical University, No. 77 Puhe Road, Shenbei New District, Shenyang, 110122, China
| | - Jia-Xin Xing
- School of Forensic Medicine, China Medical University, No. 77 Puhe Road, Shenbei New District, Shenyang, 110122, China
| | - Hao Pang
- School of Forensic Medicine, China Medical University, No. 77 Puhe Road, Shenbei New District, Shenyang, 110122, China
| | - Jun Yao
- School of Forensic Medicine, China Medical University, No. 77 Puhe Road, Shenbei New District, Shenyang, 110122, China
| | - Xue Wu
- School of Forensic Medicine, China Medical University, No. 77 Puhe Road, Shenbei New District, Shenyang, 110122, China
| | - Bao-Jie Wang
- School of Forensic Medicine, China Medical University, No. 77 Puhe Road, Shenbei New District, Shenyang, 110122, China.
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Xia X, Ding M, Xuan JF, Xing JX, Pang H, Wang BJ, Yao J. Polymorphisms in the human serotonin receptor 1B (HTR1B) gene are associated with schizophrenia: a case control study. BMC Psychiatry 2018; 18:303. [PMID: 30231895 PMCID: PMC6146515 DOI: 10.1186/s12888-018-1849-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 08/13/2018] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Schizophrenia is associated with multiple neurotransmitter disorders, including serotonin (5-hydroxytryptamine, 5-HT). The neuromodulatory action of serotonin on brain function largely depends on the action of specific subtypes of serotonin receptors. The serotonin receptor 1B (HTR1B) gene has been proposed to play putative roles in the development of multiple emotional and psychiatric disorders. METHODS To study the relationship of HTR1B polymorphisms and schizophrenia, gene information was drawn from a cohort of 310 schizophrenic patients (152 men and 158 women) and 313 healthy controls (153 men and 160 women) of northern Han Chinese descent. The χ2 test was used to compare allele and genotype distributions between case and control groups. The haplotype and linkage equilibrium were also assessed in two group comparisons. RESULTS We detected 14 SNPs. Male patients were observed to have higher frequencies of the A-allele and AA+AG genotype at rs1778258 than female patients (p = 0.012 and p = 0.015, respectively). Both the A-allele and AA+AG genotype were associated with schizophrenia risk (OR = 1.986 and OR = 2.061, respectively), although the statistical significance of the genotype was lost after Bonferroni correction. Linkage analysis showed that rs17273700, rs11568817, rs9361234 and rs58138557 polymorphisms exhibit strong linkage disequilibrium (LD). In addition, schizophrenic patients show stronger linkage between 11,568,817 and rs130058 than healthy controls. CONCLUSIONS HTR1B polymorphisms are associated with schizophrenia in the northern Han Chinese population, which provides an etiological reference for schizophrenia.
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Affiliation(s)
- Xi Xia
- 0000 0000 9678 1884grid.412449.eSchool of Forensic Medicine, China Medical University, No. 77 Puhe Road, Shenbei New District, Shenyang, 110122 China
| | - Mei Ding
- 0000 0000 9678 1884grid.412449.eSchool of Forensic Medicine, China Medical University, No. 77 Puhe Road, Shenbei New District, Shenyang, 110122 China
| | - Jin-feng Xuan
- 0000 0000 9678 1884grid.412449.eSchool of Forensic Medicine, China Medical University, No. 77 Puhe Road, Shenbei New District, Shenyang, 110122 China
| | - Jia-xin Xing
- 0000 0000 9678 1884grid.412449.eSchool of Forensic Medicine, China Medical University, No. 77 Puhe Road, Shenbei New District, Shenyang, 110122 China
| | - Hao Pang
- 0000 0000 9678 1884grid.412449.eSchool of Forensic Medicine, China Medical University, No. 77 Puhe Road, Shenbei New District, Shenyang, 110122 China
| | - Bao-jie Wang
- 0000 0000 9678 1884grid.412449.eSchool of Forensic Medicine, China Medical University, No. 77 Puhe Road, Shenbei New District, Shenyang, 110122 China
| | - Jun Yao
- School of Forensic Medicine, China Medical University, No. 77 Puhe Road, Shenbei New District, Shenyang, 110122, China.
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Lima Neto JX, Soares-Rachetti VP, Albuquerque EL, Manzoni V, Fulco UL. Outlining migrainous through dihydroergotamine–serotonin receptor interactions using quantum biochemistry. NEW J CHEM 2018. [DOI: 10.1039/c7nj03645k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present the electronic structure of the complex dihydroergotamine–serotonin receptor to unveil new medications to treat migraine and related diseases.
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Affiliation(s)
- José X. Lima Neto
- Departamento de Biofísica e Farmacologia
- Universidade Federal do Rio Grande do Norte
- Natal-RN
- Brazil
| | | | | | - Vinicius Manzoni
- Instituto de Física
- Universidade Federal de Alagoas
- Maceio-AL
- Brazil
| | - Umberto L. Fulco
- Departamento de Biofísica e Farmacologia
- Universidade Federal do Rio Grande do Norte
- Natal-RN
- Brazil
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van Rooij D, Hartman CA, van Donkelaar MMJ, Bralten J, von Rhein D, Hakobjan M, Franke B, Heslenfeld DJ, Oosterlaan J, Rommelse N, Buitelaar JK, Hoekstra PJ. Variation in serotonin neurotransmission genes affects neural activation during response inhibition in adolescents and young adults with ADHD and healthy controls. World J Biol Psychiatry 2016; 16:625-34. [PMID: 26428549 DOI: 10.3109/15622975.2015.1067371] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
OBJECTIVES Deficits in response inhibition have been associated with attention-deficit/hyperactivity disorder (ADHD). Given the role of serotonin in ADHD and impulsivity, we postulated that genetic variants within the serotonin pathway might influence response inhibition. METHODS We measured neural activation during stop-signal task performance in adolescents with ADHD (N = 185), their unaffected siblings (N = 111), and healthy controls (N = 124), and investigated the relationship of two serotonin gene polymorphisms (the rs6296 SNP of the HTR1B gene and HTTLPR variants of the 5-HTT gene) with the neural correlates of response inhibition. RESULTS The whole-brain analyses demonstrated large scale neural activation differences in the inferior and medial frontal and temporal/parietal regions of the response inhibition network between the different variants of both the HTR1B and 5HTT genes. Activation in these regions was significantly associated with stop-task performance, but not with ADHD diagnosis or severity. No associations were found between HTR1B and 5HTT variants and ADHD or ADHD-related neural activation. CONCLUSIONS These results provide novel evidence that serotonin may play an important role in the neurobiology of response inhibition. Although response inhibition is strongly linked to ADHD, serotonin linked genetic variants associated with response inhibition and its neural correlates do not explain variance of the ADHD phenotype.
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Affiliation(s)
- Daan van Rooij
- a University Medical Center Groningen, Department of Psychiatry , University of Groningen , Groningen , The Netherlands.,b Donders Institute for Brain, Cognition and Behaviour, Centre for Cognitive Neuroimaging, Radboud University , Nijmegen , The Netherlands
| | - Catharina A Hartman
- a University Medical Center Groningen, Department of Psychiatry , University of Groningen , Groningen , The Netherlands
| | - Marjolein M J van Donkelaar
- c Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Human Genetics Department , Nijmegen , The Netherlands
| | - Janita Bralten
- c Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Human Genetics Department , Nijmegen , The Netherlands.,d Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour , Department of Cognitive Neuroscience , Nijmegen , The Netherlands
| | - Daniel von Rhein
- b Donders Institute for Brain, Cognition and Behaviour, Centre for Cognitive Neuroimaging, Radboud University , Nijmegen , The Netherlands.,d Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour , Department of Cognitive Neuroscience , Nijmegen , The Netherlands
| | - Marina Hakobjan
- c Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Human Genetics Department , Nijmegen , The Netherlands
| | - Barbara Franke
- c Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Human Genetics Department , Nijmegen , The Netherlands.,e Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Department of Psychiatry , Nijmegen , The Netherlands
| | - Dirk J Heslenfeld
- f Department of Clinical Neuropsychology , VU University Amsterdam , Amsterdam , The Netherlands
| | - Jaap Oosterlaan
- f Department of Clinical Neuropsychology , VU University Amsterdam , Amsterdam , The Netherlands
| | - Nanda Rommelse
- g Karakter Child and Adolescent Psychiatry University Center , Nijmegen , The Netherlands
| | - Jan K Buitelaar
- d Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour , Department of Cognitive Neuroscience , Nijmegen , The Netherlands.,g Karakter Child and Adolescent Psychiatry University Center , Nijmegen , The Netherlands
| | - Pieter J Hoekstra
- a University Medical Center Groningen, Department of Psychiatry , University of Groningen , Groningen , The Netherlands
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Sukhodolskaya EM, Vasilyev VA, Shibalev DV, Shcherbakova OI, Kulikov AM, Lazebny OE, Karelin DV, Butovskaya ML, Ryskov AP. Comparative analysis of polymorphisms of the serotonin receptor genes HTR1A, HTR2A, and HTR1B in Hadza and Datoga males. RUSS J GENET+ 2015. [DOI: 10.1134/s1022795415110162] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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The role of the serotonergic system at the interface of aggression and suicide. Neuroscience 2013; 236:160-85. [PMID: 23333677 DOI: 10.1016/j.neuroscience.2013.01.015] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Revised: 01/01/2013] [Accepted: 01/05/2013] [Indexed: 02/07/2023]
Abstract
Alterations in serotonin (5-HT) neurochemistry have been implicated in the aetiology of all major neuropsychiatric disorders, ranging from schizophrenia to mood and anxiety-spectrum disorders. This review will focus on the multifaceted implications of 5-HT-ergic dysfunctions in the pathophysiology of aggressive and suicidal behaviours. After a brief overview of the anatomical distribution of the 5-HT-ergic system in the key brain areas that govern aggression and suicidal behaviours, the implication of 5-HT markers (5-HT receptors, transporter as well as synthetic and metabolic enzymes) in these conditions is discussed. In this regard, particular emphasis is placed on the integration of pharmacological and genetic evidence from animal studies with the findings of human experimental and genetic association studies. Traditional views postulated an inverse relationship between 5-HT and aggression and suicidal behaviours; however, ample evidence has shown that this perspective may be overly simplistic, and that such pathological manifestations may reflect alterations in 5-HT homoeostasis due to the interaction of genetic, environmental and gender-related factors, particularly during early critical developmental stages. The development of animal models that may capture the complexity of such interactions promises to afford a powerful tool to elucidate the pathophysiology of impulsive aggression and suicidability, and identify new effective therapies for these conditions.
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Sadkowski M, Dennis B, Clayden RC, Elsheikh W, Rangarajan S, Dejesus J, Samaan Z. The role of the serotonergic system in suicidal behavior. Neuropsychiatr Dis Treat 2013; 9:1699-716. [PMID: 24235834 PMCID: PMC3825712 DOI: 10.2147/ndt.s50300] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Serotonin is a widely investigated neurotransmitter in several psychopathologies, including suicidal behavior (SB); however, its role extends to several physiological functions involving the nervous system, as well as the gastrointestinal and cardiovascular systems. This review summarizes recent research into ten serotonergic genes related to SB. These genes - TPH1, TPH2, SLC6A4, SLC18A2, HTR1A, HTR1B, HTR2A, DDC, MAOA, and MAOB - encode proteins that are vital to serotonergic function: tryptophan hydroxylase; the serotonin transporter 5-HTT; the vesicular transporter VMAT2; the HTR1A, HTR1B, and HTR2A receptors; the L-amino acid decarboxylase; and the monoamine oxidases. This review employed a systematic search strategy and a narrative research methodology to disseminate the current literature investigating the link between SB and serotonin.
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Affiliation(s)
- Marta Sadkowski
- Arts and Sciences Program, McMaster University, Hamilton, ON, Canada
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10
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Cao JX, Hu J, Ye XM, Xia Y, Haile CA, Kosten TR, Zhang XY. Association between the 5-HTR1B gene polymorphisms and alcohol dependence in a Han Chinese population. Brain Res 2010; 1376:1-9. [PMID: 21172311 DOI: 10.1016/j.brainres.2010.12.039] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2009] [Revised: 11/30/2010] [Accepted: 12/11/2010] [Indexed: 02/05/2023]
Abstract
The human serotonin receptor 1B (HRT1B) plays an important role in regulating serotonin release. Previous research has suggested that the genetic variation of the HTR1B gene may confer susceptibility to alcoholism or some subtypes of alcohol dependence, but the evidence has been inconsistent. The aim of the present study is to examine whether polymorphic variants of the HTR1B gene are associated with alcohol dependence subtypes or drinking-related behaviors in Chinese Han population. Alcohol-dependent (AD) male patients (n=135) and controls (n=143) were genotyped for two polymorphisms: A161T in the promoter region and the synonymous variation G861C in the coding region of HTR1B. The results showed that the A161T polymorphism was associated with alcohol dependence (T vs. A allele: p=0.002; OR=2.18, 95% CI: 1.32-3.60). This association was strengthened in those with positive family history (OR=3.12, 95% CI: 1.71-5.70) and/or early onset (OR=4.53, 95% CI: 2.18-9.44) of alcohol dependence. The A161T variant was also significantly associated with age of onset of alcoholism (p=0.001). Furthermore, there was a significant difference of haplotypic frequencies between patients and controls (χ(2)=14.84, df=3, p=0.002), with one common haplotype AG of being significantly underrepresented among the patient group compared to the control group (34% vs. 47.7%, permutation p=0.0034; OR=0.56; 95% CI: 0.39-0.79). These findings confirm HTR1B as a susceptibility gene for alcohol dependence in the sample of Chinese Han population. The HTR1B A-161T polymorphism may be particularly valuable as a functional genetic marker for alcoholism and merits additional study.
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Affiliation(s)
- Jin-Xia Cao
- Department of Psychiatry, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
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Conner TS, Jensen KP, Tennen H, Furneaux HM, Kranzler HR, Covault J. Functional polymorphisms in the serotonin 1B receptor gene (HTR1B) predict self-reported anger and hostility among young men. Am J Med Genet B Neuropsychiatr Genet 2010; 153B:67-78. [PMID: 19350534 PMCID: PMC3312780 DOI: 10.1002/ajmg.b.30955] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We examined associations between haplotypes of the serotonin 1B receptor gene and individual differences in anger and hostility. Data were analyzed from a study of 361 university students (47% male). Participants were genotyped at five polymorphisms in the HTR1B gene (rs11568817, rs130058, rs6296, rs6297, rs13212041), including promoter and 3'UTR polymorphisms with opposite functional effects on gene expression. Participants reported their emotional states across 30 consecutive days for up to 4 years. Haplotype pairs were constructed statistically and assigned to a level of HTR1B expression based on the presence of the functional polymorphisms. Six haplotypes accounted for >97% of chromosomes. Three low expression haplotypes contained the 3'UTR variant (rs13212041 A-allele) that enables a microRNA-mediated reduction in expression. One intermediate expression haplotype contained the 3'UTR A-allele paired with the high-activity promoter. Two high expression haplotypes contained the 3'UTR variant (rs13212041 G-allele) that attenuates microRNA-mediated reduction in expression. Men with low expression haplotypes reported greater anger and hostility than men with one or two high expression haplotypes. Diplotype classification accounted for 8.4% of the variance in men's anger and hostility, primarily due to the 3'UTR polymorphism (rs13212041), but with some contribution of the functional promoter combination (rs11568817, rs130058). Associations with anger and hostility were not found in women. These findings extend our understanding of the genetic basis of anger and hostility by showing that newly characterized HTR1B haplotypes, particularly those with rs13212041, which modulates microRNA-mediated regulation of HTR1B expression, may have important implications for aggression-related phenotypes among young men.
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Affiliation(s)
- Tamlin S. Conner
- Department of Psychology, University of Otago, Dunedin, New Zealand
| | - Kevin P. Jensen
- Department of Genetics and Developmental Biology, University of Connecticut Health Center, Farmington CT 06030
- Psychiatry University of Connecticut Health Center, Farmington CT 06030
| | - Howard Tennen
- Department of Community Medicine, University of Connecticut Health Center, Farmington CT 06030
| | - Henry M. Furneaux
- Departments of Molecular, Microbial and Structural Biology, University of Connecticut Health Center, Farmington CT 06030
| | - Henry R. Kranzler
- Psychiatry University of Connecticut Health Center, Farmington CT 06030
| | - Jonathan Covault
- Psychiatry University of Connecticut Health Center, Farmington CT 06030
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HTR1B as a risk profile maker in psychiatric disorders: a review through motivation and memory. Eur J Clin Pharmacol 2009; 66:5-27. [DOI: 10.1007/s00228-009-0724-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2009] [Accepted: 08/18/2009] [Indexed: 12/21/2022]
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13
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Lee SY, Lin WW, Huang SY, Kuo PH, Wang CL, Wu PL, Chen SL, Wu JYW, Ko HC, Lu RB. The relationship between serotonin receptor 1B polymorphisms A-161T and alcohol dependence. Alcohol Clin Exp Res 2009; 33:1589-95. [PMID: 19519719 DOI: 10.1111/j.1530-0277.2009.00990.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Several studies have suggested that the serotonin receptor 1B gene (5HT1B) may be important in the pathogenesis of alcohol dependence (alcoholism; ALC; AD). We examined whether 5HT1B gene A-161T polymorphisms (rs130058) are a susceptibility factor for total AD and subgroups of AD. We further explored correlation of this 5HT1B gene variant between anxiety-depression alcoholism (ANX/DEP ALC) and antisocial alcoholism (antisocial ALC) subgroups because of the high comorbidity of anxiety-depression, antisocial personality disorder, and AD. METHODS We recruited 522 Han Chinese in Taiwan for this study: 322 AD patients and 200 controls. The patient group was recruited primarily from medical teaching hospitals; patients with antisocial alcoholism were recruited from Taiwanese prisons. Individuals with AD were classified into 3 homogeneous clinical subgroups -- pure alcoholism (pure ALC), ANX/DEP ALC, and antisocial ALC -- using DSM-IV diagnosis. The 5HT1B gene A-161T polymorphism was determined using PCR-RFLP. RESULTS No significant differences in genotypic and allelic frequencies were found between controls and the total AD group or between controls and the 3 AD subgroups. However, there were significant differences in the 5HT1B gene A-161T polymorphism at both the genotype and allelic levels between the ANX/DEP ALC and antisocial ALC subgroups. CONCLUSIONS This study suggests that the 5HT1B gene A-161T polymorphism alone is not a risk factor for increasing susceptibility to either AD or its subtypes. However, 5HT1B gene A-161T polymorphisms might be one of the common genetic factors between the ANX/DEP ALC and antisocial ALC subgroups.
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Affiliation(s)
- Sheng-Yu Lee
- Institute of Behavioral Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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Juckel G, Hegerl U, Giegling I, Mavrogiorgou P, Wutzler A, Schuhmacher C, Uhl I, Brüne M, Mulert C, Pogarell O, Rujescu D. Association of 5-HT1B receptor polymorphisms with the loudness dependence of auditory evoked potentials in a community-based sample of healthy volunteers. Am J Med Genet B Neuropsychiatr Genet 2008; 147B:454-8. [PMID: 17948897 DOI: 10.1002/ajmg.b.30628] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The terminal autoreceptor 5-HT1B is centrally involved in the regulation of the brain serotonergic system and in several psychiatric disorders including depression, addiction, and obsessive-compulsive disorder. The loudness dependence of the auditory evoked N1/P2-component (LDAEP; primary auditory cortex) is currently considered as one of best-validated indicators of serotonergic neurotransmission, especially for synaptically released serotonin. Since the 5-HT1B receptor is involved in the release of serotonin at terminal endings of cortical neurons, this study addressed the question whether single nucleotide polymorphism (SNP) in the gene coding for this receptor (HTR1B) are related to LDAEP of the primary auditory cortex (tangential dipole) investigating a community-based sample of 127 healthy subjects randomly selected from the general population. In this carefully recruited sample, a G-G haplotype (rs1213368-rs6296) and the respective G-alleles were found to be related to a strong LDAEP response of the left tangential dipole, indicating low serotonergic activity. Apart from the fact that this is the first study which relates HTR1B SNPs to a measure of serotonergic function, it can be speculated that LDAEP may reflect parts of the release mechanism of serotonin at cortical synapses, although the lateralized finding cannot be entirely explained. Carriers of the G-alleles may be characterized by a particularly strong feedback inhibition of serotonin release at cortical terminals in the primary auditory cortex, possibly mediated by higher sensitivity of 5-HT1B receptors associated with low serotonergic activity.
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Affiliation(s)
- Georg Juckel
- Department of Psychiatry, Ruhr-University Bochum, Alexandrinenstrasse 1, 44791 Bochum, Germany.
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Zhang CL, Chen H, Wang YH, Zhang RF, Lan XY, Lei CZ, Zhang L, Zhang AL, Hu SR. Serotonin receptor 1B (HTR1B) genotype associated with milk production traits in cattle. Res Vet Sci 2008; 85:265-8. [PMID: 18076958 DOI: 10.1016/j.rvsc.2007.10.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2007] [Revised: 10/21/2007] [Accepted: 10/27/2007] [Indexed: 12/01/2022]
Abstract
Serotonin receptor 1B (HTR1B) is one of the 14 different identified serotonin receptors which are involved in the regulation of behaviors such as sleep, fear, aggression, mood, and feeding. The aims of this study were to characterize polymorphisms in the 5' coding and the 3' flanking regions of the bovine HTR1B gene among Chinese Holsteins and to identify the association of HTR1B polymorphisms with milk production performance. SSCP was used to examine the polymorphisms at four loci and the fragments with different SSCP patterns were sequenced. A total of three single nucleotide polymorphisms (SNPs) were detected, among which the 205G>T mutation was found to cause a predicted amino acid change: from Ala to Ser at position 69. The polymorphism of G205T was identified to be associated with milk yield trait. Furthermore, the H1-C genotype was found to be associated with a significant increase in milk yield of 489kg vs. the H1-A genotype (P<0.05).
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Affiliation(s)
- C L Zhang
- College of Animal Science and Technology, Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture, Yangling, Shaanxi, 712100, PR China
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16
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Polymorphisms in the SLC6A4 and HTR2A genes influence treatment outcome following antidepressant therapy. THE PHARMACOGENOMICS JOURNAL 2008; 9:61-70. [PMID: 18253134 DOI: 10.1038/sj.tpj.6500491] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The majority of antidepressant drugs act by increasing synaptic serotonin levels in the brain. Genetic variation in serotonin-related genes may therefore influence antidepressant efficacy. In this study, nine polymorphisms in four serotonin receptor genes (HTR1B, HTR2A, HTR5A and HTR6) and the serotonin transporter gene (SLC6A4) were analysed to investigate their influence on antidepressant response in a well-characterized unipolar depressive population (n=166) following a protocolized treatment regimen. 5-HTTLPR short-allele homozygotes were significantly associated with both remission (odds ratios (OR)=4.00, P=0.04) and response (OR=5.06, P=0.02) following second switch treatment, with a similar trend observed following initial treatment and paroxetine therapy. Following initial treatment, unipolar patients homozygous for the SLC6A4 intron 2 repeat polymorphism were significantly associated with lack of remission (OR=0.38, P=0.02) and lack of response (OR=0.42, P=0.01). Additionally, the HTR2A C(1354)T polymorphism showed an association with remission (OR=7.50, P=0.002) and response (OR=5.25, P=0.01) following paroxetine therapy. These results suggest that genetically determined variation in serotonin receptor genes makes a significant contribution to the efficacy of commonly prescribed antidepressant drugs.
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Zouk H, McGirr A, Lebel V, Benkelfat C, Rouleau G, Turecki G. The effect of genetic variation of the serotonin 1B receptor gene on impulsive aggressive behavior and suicide. Am J Med Genet B Neuropsychiatr Genet 2007; 144B:996-1002. [PMID: 17510950 DOI: 10.1002/ajmg.b.30521] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Impulsive-aggressive behaviors (IABs) are regarded as possible suicide intermediate phenotypes, mediating the relationship between genes and suicide outcome. In this study, we aimed to investigate the putative relationship between genetic variation at the 5-HT1B receptor gene, which in animal models is involved in impulse-aggression control, IABs, and suicide risk. We investigated the relationship of variation at five 5-HT1B loci and IAB measures in a sample of 696 subjects, including 338 individuals who died by suicide and 358 normal epidemiological controls. We found that variation at the 5-HT1B promoter A-161T locus had a significant effect on levels of IABs, as measured by the Buss-Durkee Hostility Inventory (BDHI). Suicides also differed from controls in distribution of variants at this locus. The A-161T locus, which seems to impact 5-HT1B transcription, could play a role in suicide predisposition by means of mediating impulsive-aggressive behaviors.
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Affiliation(s)
- Hana Zouk
- McGill Group for Suicide Studies, Douglas Hospital Research Center, McGill University, Montreal, Canada
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18
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5-hydroxytryptamine1B receptor and triptan response in migraine, lack of association with common polymorphisms. Eur J Pharmacol 2007; 580:43-7. [PMID: 18035351 DOI: 10.1016/j.ejphar.2007.10.058] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2007] [Revised: 10/22/2007] [Accepted: 10/23/2007] [Indexed: 11/24/2022]
Abstract
Triptans mediate vasoconstriction of meningeal vessels via stimulation of vascular 5-hydroxytryptamine (5-HT)(1B) receptors. These drugs are recommended for acute treatment in patients with moderate-to-severe migraine attacks and in those patients with mild-to-moderate headache that are not controlled adequately by other agents. Yet, approximately 25% of all migraine users and 40% of all attacks do not respond to triptan treatment. Among the hypothesis to explain this is the possibility that genetic single nucleotide polymorphisms that alter the receptor, for example changing the transcriptional rate and therefore the amount of target protein might change the clinical response to these drugs. In the present contribution, we therefore decided to evaluate whether single nucleotide polymorphisms on the 5-HT(1B) gene might contribute to inter-individual variability in clinical responses to triptans. Two polymorphisms in the promoter region of the 5-HT(1B) receptor (T-261G and A-161T) and the synonymous variation G861C in the coding region were genotyped by restriction fragment length polymorphism in 105 migraine patients. In our sample population, 71% of patients responded to triptans. Allelic and diplotype frequencies were not significantly different between responders and non-responders. On the other hand, extrapolation of in vitro data on promoter activity would suggest that patients with higher copy number of receptors respond slightly better. Our data therefore do not support the involvement of 5-HT(1B) single nucleotide polymorphisms in mediating the inter-individual variability to triptans.
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Abstract
The human cardiovascular system is exposed to plasma 5-hydroxytryptamine (5-HT, serotonin), usually released from platelets. 5-HT can produce harmful acute and chronic effects. The acute cardiac effects of 5-HT consist of tachycardia (preceded on occasion by a brief reflex bradycardia), increased atrial contractility and production of atrial arrhythmias. Acute inotropic, lusitropic and arrhythmic effects of 5-HT on human ventricle become conspicuous after inhibition of phosphodiesterase (PDE) activity. Human cardiostimulation is mediated through 5-HT4 receptors. Atrial and ventricular PDE3 activity exerts a protective role against potentially harmful cardiostimulation. Chronic exposure to high levels of 5-HT (from metastatic carcinoid tumours), the anorectic drug fenfluramine and its metabolites, as well as the ecstasy drug 3,4-methylenedioxymethamphetamine (MDMA) and its metabolite 3,4-methylenedioxyamphetamine (MDA) are associated with proliferative disease and thickening of cardiac valves, mediated through 5-HT2B receptors. 5-HT2B receptors have an obligatory physiological role in murine cardiac embryology but whether this happens in humans requires research. Congenital heart block (CHB) is, on occasion, associated with autoantibodies against 5-HT4 receptors. Acute vascular constriction by 5-HT is usually shared by 5-HT1B and 5-HT2A receptors, except in intracranial arteries which constrict only through 5-HT1B receptors. Both 5-HT1B and 5-HT2A receptors can mediate coronary artery spasm but only 5-HT1B receptors appear involved in coronary spasm of patients treated with triptans or with Prinzmetal angina. 5-HT2A receptors constrict the portal venous system including oesophageal collaterals in cirrhosis. Chronic exposure to 5-HT can contribute to pulmonary hypertension through activation of constrictor 5-HT1B receptors and proliferative 5-HT2B receptors, and possibly through direct intracellular effects.
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20
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Proudnikov D, LaForge KS, Hofflich H, Levenstien M, Gordon D, Barral S, Ott J, Kreek MJ. Association analysis of polymorphisms in serotonin 1B receptor (HTR1B) gene with heroin addiction: a comparison of molecular and statistically estimated haplotypes. Pharmacogenet Genomics 2006; 16:25-36. [PMID: 16344719 DOI: 10.1097/01.fpc.0000182782.87932.d6] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES 5-Hydroxytryptamine (serotonin)-1B receptors (HTR1B) may play an important role in psychiatric disorders and drug and alcohol dependence. In this study we report on genotype, molecular haplotype and statistically estimated haplotype analyses of previously identified polymorphisms in positions -261T>G, -161A>T, 129C>T, 861G>C and 1180A>G of the HTR1B gene in ethnically diverse populations (African-Americans, Caucasians, Hispanics and Asians) including 235 former heroin addicts and 161 control subjects from New York City. The objectives were to test for an association of molecular and statistically estimated haplotypes and genotypes in HTR1B gene with heroin addiction and to compare results provided by molecular and statistically estimated haplotyping methods. METHODS Genotype analysis was performed using a standard TaqMan protocol. Molecular haplotype analysis of the subset of polymorphisms consisting of -261T>G, -161A>T and 129C>T was performed using a protocol specially designed by our group, using fluorescent PCR. This is based on use of allele-specific primers complementary to flanking polymorphisms and a fluorescently labeled sequence-specific TaqMan probe set complementary to an internal polymorphism of the haplotype region. Every individual's statistically inferred haplotype pair agreed with the individual's haplotype pair determined by molecular haplotyping. RESULTS AND CONCLUSION A point-wise significant association of haplotype pairs containing allele G at position 1180 with protective effect from heroin addiction in Caucasians was found. A point-wise nominally significant association of allele 1180G with a protective effect from heroin addiction was found in Caucasians. Statistically significant differences across four ethnic groups in control subjects for allelic frequencies of -261T>G and -161A>T were found.
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Affiliation(s)
- Dmitri Proudnikov
- Laboratory of the Biology of Addictive Diseases, The Rockefeller University, 1230 York Avenue, New York, NY 10021, USA.
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21
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Smoller JW, Biederman J, Arbeitman L, Doyle AE, Fagerness J, Perlis RH, Sklar P, Faraone SV. Association between the 5HT1B receptor gene (HTR1B) and the inattentive subtype of ADHD. Biol Psychiatry 2006; 59:460-7. [PMID: 16197923 DOI: 10.1016/j.biopsych.2005.07.017] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2005] [Revised: 05/25/2005] [Accepted: 07/18/2005] [Indexed: 12/28/2022]
Abstract
BACKGROUND Preclinical and genetic studies have implicated the 5HT1B receptor gene (HTR1B) in attention-deficit/hyperactivity disorder (ADHD). Association with a single nucleotide polymorphism (SNP; G861C) has been observed, but more extensive linkage disequilibrium analyses have not been reported. METHODS To examine haplotype structure, we genotyped 21 SNPs in and around the gene in 12 multigenerational CEPH pedigrees. We identified a haplotype block encompassing HTR1B and performed haplotype and single-marker association analyses for the eight SNPs within or flanking this block in 229 families of ADHD probands. In light of previous studies suggesting distinct genetic influences on ADHD subtypes, we also examined association with the inattentive and combined subtypes. RESULTS We observed nonsignificant overtransmission of the G861 allele to ADHD offspring (one-tailed p = .07). Single-marker and haplotype tests of a haplotype block encompassing HTR1B revealed no other associations with ADHD. However, this haplotype block was associated with the inattentive subtype (global p < .01). Additionally, three SNPs in this block were nominally (p < .05) associated with the inattentive subtype, although these did not remain significant after correction for multiple testing. As reported in previous studies, we found paternal overtransmission of the G861 allele to offspring with ADHD; this appeared to be largely attributable to inattentive cases. CONCLUSIONS These analyses suggest that variation in the HTR1B gene may primarily affect the inattentive subtype of ADHD.
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Affiliation(s)
- Jordan W Smoller
- Department of Psychiatry, Massachusetts General Hospital, Boston, Massachusetts 02114, USA.
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22
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McGrath J, Mowry B, Whiteford H. Queensland Centre for Mental Health Research: the first 17 years. Aust N Z J Psychiatry 2005; 39:533-41. [PMID: 15996133 DOI: 10.1080/j.1440-1614.2005.01624.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVE To reflect on the establishment and evolution of the Queensland Centre for Mental Health Research. METHOD Narrative historical review. RESULTS First established as an inpatient research unit in December 1987, the focus of the Centre evolved in concert with the skills of the staff. After the structure was revised in 1996 and 1999, the Centre has evolved into a group with four main research streams--epidemiology, developmental neurobiology, genetics and policy and economics. Although the group maintains a strong focus on serious mental disorders such as schizophrenia, our policy and economic work has a wider perspective. The Queensland Centre for Mental Health Research is based in an historic mental health service, with laboratories in collaborating universities and institutes. Key lessons learnt by the group along the way relate to the importance of focusing on a restricted range of research topics in order to build a critical mass. CONCLUSIONS Given a facilitating environment, hospital-based research groups can prosper. Over the last 17 years, a cost-efficient, focused and productive research group has evolved that has made contributions to international research.
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Affiliation(s)
- John McGrath
- Queensland Centre for Mental Health Research, The Park Centre for Mental Health and Department of Psychiatry, University of Queensland, Brisbane, Queensland, Australia.
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23
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Jones MD, Lucki I. Sex differences in the regulation of serotonergic transmission and behavior in 5-HT receptor knockout mice. Neuropsychopharmacology 2005; 30:1039-47. [PMID: 15688089 DOI: 10.1038/sj.npp.1300664] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Few studies have examined the relationship between genetics, stress, and sex-linked differences in neurotransmitter systems. Examining serotonin (5-HT) receptor knockout mice on stress-induced behavioral depression, female 5-HT1B receptor knockout mice demonstrated significantly reduced immobility than either male 5-HT1B receptor knockout mice or male and female wild-type mice on the tail suspension test (TST) and forced swimming test. The behavioral phenotype was identified as likely due to a disinhibition of 5-HT release, because depletion of 5-HT with parachlorophenylalanine selectively reduced immobility of female 5-HT1B receptor knockout mice in the TST. In contrast, male and female 5-HT1A receptor knockout mice demonstrated reduced immobility compared with control mice, but the depletion of 5-HT with PCPA did not reverse the antidepressant-like phenotype. Microdialysis studies confirmed significantly higher baseline levels of hippocampal 5-HT in female, but not male, 5-HT1B receptor knockout mice. Both male and female 5-HT1B receptor knockout mice demonstrated augmented dialysate responses to fluoxetine. Also, both male and female 5-HT1B receptor knockout mice demonstrated reductions of immobility in the TST after treatment with fluoxetine. Therefore, female 5-HT1B receptor knockout mice demonstrate a sex-linked disinhibition of 5-HT release that sustained higher baseline levels of hippocampal 5-HT and behavioral vulnerability to 5-HT depletion.
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MESH Headings
- Animals
- Behavior, Animal/physiology
- Brain/anatomy & histology
- Depression/psychology
- Extracellular Space/drug effects
- Extracellular Space/metabolism
- Female
- Fenclonine/pharmacology
- Fluoxetine/pharmacology
- Hindlimb Suspension/physiology
- Male
- Mice
- Mice, Knockout
- Microdialysis
- Motor Activity/drug effects
- Motor Activity/genetics
- Motor Activity/physiology
- Receptor, Serotonin, 5-HT1A/drug effects
- Receptor, Serotonin, 5-HT1A/genetics
- Receptor, Serotonin, 5-HT1B/drug effects
- Receptor, Serotonin, 5-HT1B/genetics
- Receptors, Serotonin/genetics
- Receptors, Serotonin/physiology
- Serotonin/physiology
- Serotonin Agents/pharmacology
- Selective Serotonin Reuptake Inhibitors/pharmacology
- Sex Characteristics
- Stress, Psychological/psychology
- Synaptic Transmission/physiology
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Affiliation(s)
- Michelle D Jones
- Department of Psychiatry, University of Pennsylvania, 415 Curie Boulevard, Philadelphia, PA 19104, USA
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24
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Duan S, Yin H, Chen W, Xing Q, chen Q, Guo T, Gao J, Li X, Gao R, Liu Z, Gu N, Feng G, He L. No association between the serotonin 1B receptor gene and schizophrenia in a case–control and family-based association study. Neurosci Lett 2005; 376:93-7. [PMID: 15698927 DOI: 10.1016/j.neulet.2004.11.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2004] [Revised: 10/11/2004] [Accepted: 11/11/2004] [Indexed: 01/31/2023]
Abstract
Previous studies have demonstrated that polymorphisms in the putative promoter region of the human serotonin receptor 1B (HTR1B) gene affect gene expression [H.F. Sun, Y.T. Chang, C.S. Fann, C.J. Chang, Y.H. Chen, Y.P. Hsu, W.Y. Yu, A.T. Cheng, Association study of novel human serotonin 5-HT(1B) polymorphisms with alcohol dependence in Taiwanese Han, Biol. Psychiatry 51 (2002) 896-901; J. Duan, A.R. Sanders, J.E. Molen, L. Martinolich, B.J. Mowry, D.F. Levinson, R.R. Crowe, J.M. Silverman, P.V. Gejman, Polymorphisms in the 5'-untranslated region of the human serotonin receptor 1B (HTR1B) gene affect gene expression, Mol. Psychiatry 8 (2003) 901-910]. And the silent mutation G861C allele has been reported to be associated with several psychiatric disorders. Thus, we performed a case-control association study (456 cases and 557 controls) of the five variants in HTR1B gene (T-261G, -182INS/DEL-181, A-161T, C129T and G861C) with schizophrenia. The results showed that neither the allelic distribution nor the major haplotype distribution (except for a rare haplotype) of five SNPs in patients was significantly different from that in controls. A further family-based association study (229 family trios) of G861C allele suggested that HTR1B was not a susceptible gene with schizophrenia in our sample. In conclusion, these data do not support the idea that HTR1B gene plays a major role in the etiopathogenesis of schizophrenia in Chinese Han population.
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Affiliation(s)
- Shiwei Duan
- Bio-X Life Science Research Center, Shanghai Jiao Tong University, Shanghai 200030, China
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25
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Nikoh N, Duty A, Gibson G. Effects of population structure and sex on association between serotonin receptors and Drosophila heart rate. Genetics 2004; 168:1963-74. [PMID: 15611167 PMCID: PMC1448745 DOI: 10.1534/genetics.104.028712] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2004] [Accepted: 07/19/2004] [Indexed: 11/18/2022] Open
Abstract
As a first step toward population and quantitative genetic analysis of neurotransmitter receptors in Drosophila melanogaster, we describe the parameters of nucleotide variation in three serotonin receptors and their association with pupal heart rate. Thirteen kilobases of DNA including the complete coding regions of 5-HT1A, 5-HT1B, and 5-HT2 were sequenced in 216 highly inbred lines extracted from two North American populations in California and North Carolina. Nucleotide and amino acid polymorphism is in the normal range for Drosophila genes and proteins, and linkage disequilibrium decays rapidly such that haplotype blocks are typically only a few SNPs long. However, intron 1 of 5-HT1A consists of two haplotypes that are at significantly different frequencies in the two populations. Neither this region of the gene nor any of the common amino acid polymorphisms in the three loci associate with either heart rate or heart rate variability. A cluster of SNPs in intron 2 of 5-HT1A, including a triallelic site, do show a highly significant interaction between genotype, sex, and population. While it is likely that a combination of weak, complex selection pressures and population structure has helped shape variation in the serotonin receptors of Drosophila, much larger sampling strategies than are currently adopted in evolutionary genetics will be required to disentangle these effects.
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Affiliation(s)
- Naruo Nikoh
- University of the Air, Chiba City 261-8586, Japan
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26
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Saitou N. Evolution of hominoids and the search for a genetic basis for creating humanness. Cytogenet Genome Res 2004; 108:16-21. [PMID: 15545711 DOI: 10.1159/000080797] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2003] [Accepted: 03/11/2004] [Indexed: 01/01/2023] Open
Abstract
The phylogenetic relationship of human and apes are reviewed. The history of molecular phylogenetic studies in this field is then discussed, as is the role of natural selection at the molecular level. It is argued that approximately 10,000 genetic changes are responsible for creating human specific phenotypes. A genome-wide comparison is necessary to decipher those changes.
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Affiliation(s)
- N Saitou
- Division of Population Genetics, National Institute of Genetics, Mishima, Japan.
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27
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Duan J, Sanders AR, Molen JEV, Martinolich L, Mowry BJ, Levinson DF, Crowe RR, Silverman JM, Gejman PV. Polymorphisms in the 5'-untranslated region of the human serotonin receptor 1B (HTR1B) gene affect gene expression. Mol Psychiatry 2003; 8:901-10. [PMID: 14593427 DOI: 10.1038/sj.mp.4001403] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
We present evidence of complex balancing regulation of HTR1B transcription by common polymorphisms in its promoter. Computational analysis of the HTR1B gene predicted that a 5' segment, spanning common DNA sequence variations, T-261G, A-161T, and -182INS/DEL-181, contained a putative functional promoter. Using a secreted alkaline phosphatase (SEAP) reporter gene system, we found that the haplotype -261G_-182INS-181_A-161 enhanced transcriptional activity 2.3-fold compared with the haplotype T-261_-182INS-181_A-161. Conversely, -161T reversed this, and the net effect when -261G and -161T were in the same haplotype (-261G_-182INS-181_-161T) was equivalent to the major haplotype (T-261_-182INS-181_A-161). Electrophoretic mobility shift experiments showed that -261G and -161T modify the binding of transcription factors (TFs): -261G generates a new AP2 binding site, while alleles A-161 and -161T exhibit different binding characteristics to AP1. T-261G and A-161T were found to be in linkage disequilibrium (LD) with G861C in a European ancestry population. Interestingly, G861C has been reported to be associated with several psychiatric disorders. Our results indicate that HTR1B is the target of substantial transcriptional genetic regulation by common haplotypes, which are in LD with the HTR1B single-nucleotide polymorphism (SNP) most commonly used in association studies.
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Affiliation(s)
- J Duan
- Center for Psychiatric Genetics, Evanston Northwestern Healthcare (ENH) Research Institute, ENH & Northwestern University, Evanston, IL 60206, USA
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Abstract
Australian research in psychiatric genetics covers molecular genetic studies of depression, anxiety, alcohol dependence, Alzheimer's disease, bipolar disorder, schizophrenia, autism, and attention deficit hyperactivity disorder. For each disorder, a variety of clinical cohorts have been recruited including affected sib pair families, trios, case/controls, and twins from a large population-based twin registry. These studies are taking place both independently and in collaboration with international groups. Microarray studies now complement DNA investigations, while animal models are in development. An Australian government genome facility provides a high throughput genotyping and mutation detection service to the Australian scientific community, enhancing the contribution of Australian psychiatric genetics groups to gene discovery.
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Affiliation(s)
- Bryan J Mowry
- Department of Psychiatry, Queensland Centre for Schizophrenia Research, University of Queensland, The Park, Centre for Mental Health, Wacol, Queensland 4076, Australia. ,edu.au
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Sanders AR, Duan J, Gejman PV. DNA variation and psychopharmacology of the human serotonin receptor 1B (HTR1B) gene. Pharmacogenomics 2002; 3:745-62. [PMID: 12437478 DOI: 10.1517/14622416.3.6.745] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
One of the neurotransmitter serotonin's receptors, HTR1B, is of interest for many neuropsychiatric traits, illnesses and treatments for multiple reasons, especially its tissue distribution, pharmacological profile and findings from mice lacking the receptor, along with reasons generally implicating serotonin. Eight mutation scans have uncovered sixteen polymorphisms in the coding sequence and surrounding 5'- and 3'-untranslated regions and much is now known of the distribution of these polymorphisms in various ethnic groups and their linkage disequilibrium relationships. Thus far, evidence exists that the uncommon missense T371G (Phe124Cys) and the common promoter region A-161T polymorphisms may exhibit functional effects and possibly that the common synonymous G861C (or more likely a variant in linkage disequilibrium with G861C) does as well. From the eighteen reported population-based case control studies of HTR1B to multiple disorders, several facts stand out. There exists preliminary evidence for association of G861C with i) antisocial alcoholism in the Finnish; ii) alcoholism in the presence of inactive aldehyde dehydrogenase 2 in the Japanese; iii) a history of suicide attempts in European-American personality disorder patients; and iv) minimum lifetime body mass index in Canadian bulimia nervosa patients. From the three reported family-based case control studies of HTR1B to various disorders, one provides preliminary evidence for association of G861C with obsessive compulsive disorder. Although many association studies have been completed, positive results should still be considered preliminary. As these preliminary reports are tested for replication with larger, more powerful samples, there should be increased clarity as to which findings remain robust; in some cases this will require the application of meta-analytic techniques.
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Affiliation(s)
- Alan R Sanders
- Schizophrenia Genetics Research Program, Department of Psychiatry, The University of Chicago, Jules F Knapp Research Building, 924 East 57th Street, Room R-004, IL 60637, USA.
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