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Kang Y, Zhang Y, Huang K, Wang Z. Association of dopamine-based genetic risk score with dynamic low-frequency fluctuations in first-episode drug-naïve schizophrenia. Brain Imaging Behav 2023; 17:584-594. [PMID: 37382826 DOI: 10.1007/s11682-023-00786-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/11/2023] [Indexed: 06/30/2023]
Abstract
Alterations in dynamic intrinsic brain activity and signaling of neurotransmitters, such as dopamine, have been independently detected in schizophrenia patients. Yet, it remains unclear whether the dopamine genetic risk variants have association with brain intrinsic activity. We aimed to investigate the schizophrenia-specific dynamic amplitude of low frequency fluctuation (dALFF) altered pattern, and its association with dopamine genetic risk score in first-episode drug-naïve schizophrenia (FES). Fifty-two FES and 51 healthy controls were included. A sliding-window method based on the dALFF was adopted to estimate the dynamic alterations in intrinsic brain activity. Subjects were genotyped, and a genetic risk score (GRS), which combined the additive effects of ten risk genotypes from five dopamine-related genes, was calculated. We used the voxel-wise correlation analysis to explore the association of dopamine-GRS with dALFF. FES showed significantly increased dALFF left medial prefrontal cortex and significantly decreased dALFF in the right posterior cingulate cortex compared with healthy controls. Greater dopamine GRS in FES was associated with higher dALFF in the left middle frontal gyrus and left inferior parietal gyrus. Our findings indicate that cumulative dopamine genetic risk is associated with a known imaging phenotype for schizophrenia.
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Affiliation(s)
- Yafei Kang
- Shaanxi Provincial Key Research Center of Child Mental and Behavioral Health, School of Psychology, Shaanxi Normal University, Xi'an, China
| | - Youming Zhang
- Department of Radiology, Xiangya Hospital, Central South University, Changsha, China
| | - Kexin Huang
- West China Biomedical Big Data Centre, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
| | - Zhenhong Wang
- Shaanxi Provincial Key Research Center of Child Mental and Behavioral Health, School of Psychology, Shaanxi Normal University, Xi'an, China.
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2
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Mattioni J, Vansteene C, Poupon D, Gorwood P, Ramoz N. Associated and intermediate factors between genetic variants of the dopaminergic D2 receptor gene and harmful alcohol use in young adults. Addict Biol 2023; 28:e13269. [PMID: 36825486 PMCID: PMC10078472 DOI: 10.1111/adb.13269] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 12/08/2022] [Accepted: 01/11/2023] [Indexed: 02/10/2023]
Abstract
Dopamine receptor D2 (DRD2) and ankyrin repeat and kinase domain-containing protein 1 (ANKK1) genes have received considerable attention for their involvement in alcohol use disorder (AUD), but many questions remain on their exact role. We conducted a population-based case-control and genetic association study in a large sample of young adults. Our aim was to assess the association between DRD2 and ANKK1 single nucleotide polymorphisms (SNPs) and harmful alcohol use, disentangling associated and possible intermediate factors. A total of 1841 college students from the French region Champagne-Ardennes, aged between 18 and 21 years and who reported at least one lifetime alcohol consumption, were included in this study. Allele frequencies were analysed according to harmful alcohol use (assessed through the Alcohol Use Disorder Identification Test [AUDIT] questionnaire). Different substance use disorders, including nicotine and cannabis dependences, were also assessed through questionnaires, as was a list of potential associated factors (e.g., major depressive episode, conduct disorder, attention-deficit/hyperactivity disorder [ADHD], school failure, sugar consumption, sexual trauma, parents' use of alcohol, tobacco or cannabis). We found that DRD2 rs1800498 was associated with harmful alcohol use. Many factors were detected, but a global path analysis revealed that DRD2 rs1800498 had a significant direct effect on harmful alcohol use and that early age at first alcohol consumption and depressive symptoms moderated this effect. This study suggests an interplay between harmful alcohol use, DRD2 genotypes and other risk factors that, with a full understanding, could be useful for preventive purposes.
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Affiliation(s)
- Julia Mattioni
- Université Paris Cité, INSERM, U1266 (Institute of Psychiatry and Neuroscience of Paris), Paris, France.,CMME, GHU Paris Psychiatrie et Neurosciences, Hôpital Sainte-Anne, Paris, France
| | - Clément Vansteene
- CMME, GHU Paris Psychiatrie et Neurosciences, Hôpital Sainte-Anne, Paris, France
| | - Daphnee Poupon
- CMME, GHU Paris Psychiatrie et Neurosciences, Hôpital Sainte-Anne, Paris, France
| | - Philip Gorwood
- Université Paris Cité, INSERM, U1266 (Institute of Psychiatry and Neuroscience of Paris), Paris, France.,CMME, GHU Paris Psychiatrie et Neurosciences, Hôpital Sainte-Anne, Paris, France
| | - Nicolas Ramoz
- Université Paris Cité, INSERM, U1266 (Institute of Psychiatry and Neuroscience of Paris), Paris, France
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Habibzadeh P, Nemati A, Dastsooz H, Taghipour‐Sheshdeh A, Paul PM, Sahraian A, Faghihi MA. Investigating the association between common DRD2/ANKK1 genetic polymorphisms and schizophrenia: a meta-analysis. J Genet 2021. [DOI: 10.1007/s12041-021-01306-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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4
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Fedorenko OY, Paderina DZ, Loonen AJM, Pozhidaev IV, Boiko AS, Kornetova EG, Bokhan NA, Wilffert B, Ivanova SA. Association of ANKK1 polymorphism with antipsychotic-induced hyperprolactinemia. Hum Psychopharmacol 2020; 35:e2737. [PMID: 32383805 PMCID: PMC7507142 DOI: 10.1002/hup.2737] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 04/07/2020] [Accepted: 04/08/2020] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Schizophrenia is a severe highly heritable mental disorder. Genetic polymorphisms of dopaminergic pathways are related to pathogenesis of drug response. Hyperprolactinemia (HPRL), a common adverse effect of antipsychotics, is attributed to blockade of dopamine D2 receptors. Ankyrin Repeat and Kinase Domain containing 1 (ANKK1) gene is closely related to Dopamine Receptor D2 type (DRD2) gene functioning. We examined whether the functional polymorphism rs2734849 in the ANKK1 gene is associated with antipsychotic-induced HPRL. METHODS We recruited 446 patients with schizophrenia from among the Russian population of the Siberian region. The polymorphism rs2734849 in the ANKK1 gene was genotyped with The MassARRAY® Analyzer 4 by Agena Bioscience™, using the kit SEQUENOM Consumables iPLEXGold 384. Genotype and allele frequencies were compared between groups of schizophrenia patients with and without HPRL using the χ2 test. RESULTS A comparison between schizophrenia patients with and without HPRL revealed significantly higher frequency of the C allele of the polymorphic variant rs2734849 in the ANKK1 gene in patients with HPRL as compared to the patients without it (χ2 = 3.70; p = .05; odds ratio [OR] = 1.30 [0.99-1.69]). CONCLUSION The functional polymorphism rs2734849 in the ANKK1 gene was associated with HPRL in patients with schizophrenia.
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Affiliation(s)
- Olga Yu. Fedorenko
- Mental Health Research InstituteTomsk National Research Medical Center of Russian Academy of SciencesTomskRussia,Division for Control and Diagnostics, School of Non‐Destructive Testing and SecurityNational Research Tomsk Polytechnic UniversityTomskRussia
| | - Diana Z. Paderina
- Mental Health Research InstituteTomsk National Research Medical Center of Russian Academy of SciencesTomskRussia,Department of Cytology and Genetics, National Research Tomsk State UniversityTomskRussia
| | - Anton J. M. Loonen
- PharmacoTherapy, ‐Epidemiology and ‐Economics, Groningen Research Institute of PharmacyUniversity of GroningenGroningenThe Netherlands,Policy Office for Quality and Innovation of Care (BZI), GGZ Westelijk Noord‐BrabantHalsterenThe Netherlands
| | - Ivan V. Pozhidaev
- Mental Health Research InstituteTomsk National Research Medical Center of Russian Academy of SciencesTomskRussia,Department of Cytology and Genetics, National Research Tomsk State UniversityTomskRussia
| | - Anastasiia S. Boiko
- Mental Health Research InstituteTomsk National Research Medical Center of Russian Academy of SciencesTomskRussia
| | - Elena G. Kornetova
- Mental Health Research InstituteTomsk National Research Medical Center of Russian Academy of SciencesTomskRussia,Hospital, Siberian State Medical UniversityTomskRussia
| | - Nikolay A. Bokhan
- Mental Health Research InstituteTomsk National Research Medical Center of Russian Academy of SciencesTomskRussia,Department of Psychotherapy and Psychological Counseling, National Research Tomsk State UniversityTomskRussia,Department of Psychiatry, Addictology and Psychotherapy, Siberian State Medical UniversityTomskRussia
| | - Bob Wilffert
- PharmacoTherapy, ‐Epidemiology and ‐Economics, Groningen Research Institute of PharmacyUniversity of GroningenGroningenThe Netherlands,Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of GroningenGroningenThe Netherlands
| | - Svetlana A. Ivanova
- Mental Health Research InstituteTomsk National Research Medical Center of Russian Academy of SciencesTomskRussia,Division for Control and Diagnostics, School of Non‐Destructive Testing and SecurityNational Research Tomsk Polytechnic UniversityTomskRussia,Department of Psychiatry, Addictology and Psychotherapy, Siberian State Medical UniversityTomskRussia
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5
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Association between DRD2 and ANKK1 polymorphisms with the deficit syndrome in schizophrenia. Ann Gen Psychiatry 2020; 19:39. [PMID: 32565876 PMCID: PMC7302002 DOI: 10.1186/s12991-020-00289-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 06/11/2020] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND The clinical course of schizophrenia varies among patients and is difficult to predict. Some patient populations present persistent negative symptoms, referred to as the deficit syndrome. Compared to relatives of non-deficit schizophrenia patients, family members of this patient population are at an increased risk of developing schizophrenia. Therefore, the aim of this study was to search for genetic underpinnings of the deficit syndrome in schizophrenia. METHODS Three SNPs, i.e., rs1799732 and rs6276 located within DRD2, and rs1800497 within ANKK1, were identified in the DNA samples of 198 schizophrenia probands, including 103 patients with deficit (DS) and 95 patients with non-deficit schizophrenia (NDS). Results: No significant differences concerning any of the analyzed polymorphisms were found between DS and NDS patients. However, significant links were observed between family history of schizophrenia and the deficit syndrome, G/G genotype and rs6276 G allele. In a separate analysis, we identified significant differences in frequencies of rs6276 G allele between DS and NDS patients with family history of schizophrenia. No significant associations were found between DRD2 and ANKK1 SNPs and the age of onset or schizophrenia symptom severity. CONCLUSIONS The results of our preliminary study fail to provide evidence of associations between DRD2 and ANKK1 polymorphisms with the deficit syndrome or schizophrenia symptom severity, but suggest potential links between rs6276 in DRD2 and the deficit syndrome in patients with hereditary susceptibility to schizophrenia. However, further studies are necessary to confirm this observation.
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Zhang XC, Ding M, Adnan A, Liu Y, Liu YP, Xing JX, Xuan JF, Xia X, Yao J, Wang BJ. No association between polymorphisms in the promoter region of dopamine receptor D2 gene and schizophrenia in the northern Chinese Han population: A case-control study. Brain Behav 2019; 9:e01193. [PMID: 30657260 PMCID: PMC6379595 DOI: 10.1002/brb3.1193] [Citation(s) in RCA: 5] [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: 07/20/2018] [Revised: 11/21/2018] [Accepted: 12/05/2018] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Epidemiological studies found that genetic factors are among the causes of schizophrenia, exclusively the genes involved in the dopamine system. Prior to this, the role of dopamine receptor D2 (DRD2) gene promoter polymorphisms and schizophrenia has been studied extensively, but there are still some uncertainties about these associations. The present study is focusing on the association between the DRD2 gene promoter region polymorphisms and schizophrenia in the northern Chinese Han population. METHODS We sequenced 2,111-bp fragment of DRD2 gene promoter region in 306 schizophrenic patients and 324 healthy controls to find association between DRD2 and schizophrenia. SPSS version 18 0.0 was used to calculate odds ratios (OR), 95% confidence intervals (CIs).The Hardy-Weinberg equilibrium test and the confirmation of haplotypes were calculated using Haploview version 4.1. The association of schizophrenic risk of DRD2 genotypes, alleles, and haplotypes between case and control groups was calculated using the chi-squared test. PS program was used to calculate the Power analysis. RESULTS The genotype frequencies of rs7116768 (p = 0.025) and rs1799732 (p = 0.042) were associated meagerly. After Bonferroni correction, there was no association found between DRD2 gene promoter region with schizophrenia risk in the northern Chinese Han population. CONCLUSIONS In this study, we did not find any significant difference between schizophrenia and the polymorphisms of DRD2 gene promoter region. A more forceful conclusion remains to be verified by further confirmatory experiments.
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Affiliation(s)
- Xi-Cen Zhang
- School of Forensic Medicine, China Medical University, Shenyang, China
| | - Mei Ding
- School of Forensic Medicine, China Medical University, Shenyang, China
| | - Atif Adnan
- School of Forensic Medicine, China Medical University, Shenyang, China
| | - Yi Liu
- School of Forensic Medicine, China Medical University, Shenyang, China
| | - Yong-Ping Liu
- School of Forensic Medicine, China Medical University, Shenyang, China
| | - Jia-Xin Xing
- School of Forensic Medicine, China Medical University, Shenyang, China
| | - Jin-Feng Xuan
- School of Forensic Medicine, China Medical University, Shenyang, China
| | - Xi Xia
- School of Forensic Medicine, China Medical University, Shenyang, China
| | - Jun Yao
- School of Forensic Medicine, China Medical University, Shenyang, China
| | - Bao-Jie Wang
- School of Forensic Medicine, China Medical University, Shenyang, China
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7
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Kaur G, Singh Chavan B, Gupta D, Sinhmar V, Prasad R, Tripathi A, Garg PD, Gupta R, Khurana H, Gautam S, Margoob MA, Aneja J. An association study of dopaminergic (DRD2) and serotoninergic (5-HT2) gene polymorphism and schizophrenia in a North Indian population. Asian J Psychiatr 2019; 39:178-184. [PMID: 30389402 DOI: 10.1016/j.ajp.2018.10.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Revised: 09/24/2018] [Accepted: 10/23/2018] [Indexed: 01/04/2023]
Abstract
The aim of this study was to investigate whether single nucleotide polymorphisms (SNPs) in DRD2 and 5-HT2 receptor genes are associated with schizophrenia in North Indian population. Four hundred forty-three patients who met ICD10-DCR criteria for schizophrenia were enrolled from six participating centers along with 443 genetically related healthy subjects and 150 genetically unrelated healthy participants. A total of 7 gene polymorphisms from DRD2 (rs1800497, rs1079597, rs1800498, rs1801028) and 5-HT2 A (rs6313, rs6311, rs6305) were genotyped for their association with schizophrenia. No significant difference was found in frequency of various genotypes and alleles of the studied markers for DRD2 and 5-HT2 A genes between the cases and their genetic controls. However, significant differences were noted for rs1079597 genotype (Taq1B; p = 0.039) and its allele frequencies (p = 0.029) in persons with schizophrenia and the unrelated healthy controls. The DRD2 (Taq1 A-B-D) and 5-HT2 A (rs6311-rs6313-rs6305) haplotype frequencies differed significantly for A2B1D2 [p = 0.038; OR = 0.685 (95%CI = 0.479-0.981)] and ACC [p = 0.001; OR = 0.621 (95%CI = 0.461-0.838)] for the cases vs genetically related healthy controls. Similarly, significant difference was observed for the frequencies of GCC [p = 0.006; OR = 0.692 (95%CI = 0.532-0.900)] and ACC [p < 0.001; OR = 3.622 (95%CI = 1.73-7.585)] in the cases and unrelated healthy controls. Unlike previous research from India as well as abroad, the predominance of B1 allele of rs1079597 in patients with schizophrenia and absence of Cys311 in all study participants is a salient difference. Concluding, the B2 allele of rs1079597 may increase the risk of schizophrenia while the A2B1D2 haplotype may be protective in North Indian population.
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Affiliation(s)
- Gurjit Kaur
- Department of Physiology, Government Medical College & Hospital, Sector 32, Chandigarh, India
| | - Bir Singh Chavan
- Department of Psychiatry, Government Medical College & Hospital, Sector 32, Chandigarh, India
| | - Deepti Gupta
- Genetic Centre, Government Medical College & Hospital, Sector 32, Chandigarh, India
| | - Vikas Sinhmar
- Genetic Centre, Government Medical College & Hospital, Sector 32, Chandigarh, India
| | - Rajendra Prasad
- Department of Biochemistry, Postgraduate Institute of Medical Education & Research, Sector 12, Chandigarh, India
| | - Adarsh Tripathi
- Department of Psychiatry, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - P D Garg
- Department of Psychiatry, Government Medical College, Amritsar, Punjab, India
| | - Rajiv Gupta
- Department of Psychiatry, Postgraduate Institute of Medical Sciences, Rohtak, Haryana, India
| | - Hitesh Khurana
- Department of Psychiatry, Postgraduate Institute of Medical Sciences, Rohtak, Haryana, India
| | - Shiv Gautam
- Department of Psychiatry, SMS Medical College, Jaipur, Rajasthan, India
| | - Mushtaq Ahmed Margoob
- Department of Psychiatry, Government Medical College, Srinagar, Jammu & Kashmir, India
| | - Jitender Aneja
- Department of Psychiatry, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India.
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Impact of DRD2/ANKK1 and COMT Polymorphisms on Attention and Cognitive Functions in Schizophrenia. PLoS One 2017; 12:e0170147. [PMID: 28085950 PMCID: PMC5235377 DOI: 10.1371/journal.pone.0170147] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Accepted: 12/29/2016] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Cognitive deficits such as poor selective attention and executive functions decline have been reported in patients with schizophrenia. Many studies have emphasized the role of dopamine in regulating cognitive functions in the general population as well as in schizophrenia. However, the relationship between cognitive processes, schizophrenia and dopaminergic candidate genes is an original approach given interesting results. The purpose of the current exploratory study was to examine the interaction of dopaminergic genes (coding for dopamine receptor D2, DRD2, and for Catecholamine-O-Methyl-Transferase, COMT) with the diagnostic of schizophrenia in (i) the executive control of attention, (ii) selective attention, and (iii) executive functions. METHODS AND RESULTS We recruited 52 patients with schizophrenia and 53 healthy controls who performed the Stroop Color-Word Test, the Attention Network Test and the Wisconsin Card Sorting test. Four single nucleotide polymorphisms (SNPs) in the DRD2 gene (rs6275, rs6277, rs2242592 and rs1800497) and two SNPs in the COMT gene (rs4680 and rs165599) have been genotyped. Patients with schizophrenia performed significantly worse than controls in all cognitive performance, taking into account demographic variables. A significant gene by disease interaction was found for the Stroop interference (p = 0.002) for rs6275 of the DRD2 gene. The COMT Val/Val genotype and schizophrenia were associated with increased number of perseverative errors (p = 0.01). CONCLUSIONS In our study, the DRD2 gene is involved in attention while the COMT gene is implicated in executive functions in patients with schizophrenia.
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He H, Wu H, Yang L, Gao F, Fan Y, Feng J, Ma X. Associations between dopamine D2 receptor gene polymorphisms and schizophrenia risk: a PRISMA compliant meta-analysis. Neuropsychiatr Dis Treat 2016; 12:3129-3144. [PMID: 28003749 PMCID: PMC5158172 DOI: 10.2147/ndt.s118614] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVE To determine the relationships between dopamine D2 receptor gene polymorphisms and the risk of schizophrenia using meta-analysis. METHOD The PubMed, Embase, and China National Knowledge Infrastructure databases were searched to identify relevant literature published up to February 2016. The allele contrast model was used. Stata software was used for statistical analysis, with odds ratios (ORs) and 95% confidence intervals (CIs) calculated to evaluate the associations between dopamine D2 receptor gene polymorphisms and the risk of schizophrenia. Meta-regression and publication bias, trim-and-fill, subgroup, sensitivity, cumulative, and fail-safe number analyses were also performed. RESULTS This meta-analysis included 81 studies. The rs1801028 and rs1799732 were associated with schizophrenia risk among Asians (P=0.04, OR =1.25, 95% CI =1.01-1.55; P<0.01, OR =0.76, 95% CI =0.63-0.92, respectively), while the rs6277 was associated with schizophrenia risk in Caucasians (P<0.01, OR=0.72, 95% CI =0.66-0.79). The rs1800497 was also associated with schizophrenia risk in population-based controls (P<0.01, OR =0.84, 95% CI =0.72-0.97). The rs6275, rs1079597, and rs1800498 were not associated with schizophrenia risk. In addition, meta-regression indicated that the controls may be sources of heterogeneity for the rs1801028 single-nucleotide polymorphism (SNP), while ethnicity may be sources of heterogeneity for the rs6277 SNP. Publication bias was significant for the rs1801028 SNP, and this result changed after the publication bias was adjusted using the trim-and-fill method. CONCLUSION This meta-analysis demonstrated that the rs1801028 may be a risk factor for susceptibility to schizophrenia among Asians, while the rs1799732 may be a protective factor for that population. Large-sample studies are necessary to verify the results of this meta-analysis.
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Affiliation(s)
- Hairong He
- Clinical Research Center, The First Affiliated Hospital of Xi’an Jiaotong University
| | - Huanhuan Wu
- Clinical Research Center, The First Affiliated Hospital of Xi’an Jiaotong University
- College of Pharmacy, Xi’an Medical University
| | - Lihong Yang
- Clinical Research Center, The First Affiliated Hospital of Xi’an Jiaotong University
| | - Fan Gao
- Clinical Research Center, The First Affiliated Hospital of Xi’an Jiaotong University
| | - Yajuan Fan
- Department of Psychiatry, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Junqin Feng
- Department of Psychiatry, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Xiancang Ma
- Clinical Research Center, The First Affiliated Hospital of Xi’an Jiaotong University
- Department of Psychiatry, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
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González-Castro TB, Hernández-Díaz Y, Juárez-Rojop IE, López-Narváez ML, Tovilla-Zárate CA, Genis-Mendoza A, Alpuin-Reyes M. The role of C957T, TaqI and Ser311Cys polymorphisms of the DRD2 gene in schizophrenia: systematic review and meta-analysis. Behav Brain Funct 2016; 12:29. [PMID: 27829443 PMCID: PMC5101652 DOI: 10.1186/s12993-016-0114-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 11/04/2016] [Indexed: 01/11/2023] Open
Abstract
Background The association between the dopamine D2 receptor (DRD2) gene and schizophrenia has been studied though no conclusive outcomes have been attained. The aim of this study was to perform a systematic review and meta-analysis to explore the relation between three polymorphisms of the DRD2 gene (C957T, TaqI and Ser311Cys) and schizophrenia. Methods The search was made in PubMed and EBSCO databases (up to February 2016). The systematic review included 34 case–control association studies (34 for C957T, 16 for TaqI and 36 for Ser311Cys). The association analysis comprised the allelic, additive, dominant, and recessive genetic models. The meta-analysis was performed following the preferred reporting items for systematic reviews and meta-analyses (PRISMA) statement. Results The meta-analysis showed that TaqI (additive model: OR 0.57, 95% CI 0.30–1.14) and C957T (additive model: OR 0.75, 95% OR 0.58–0.97, recessive model: OR 0.79, 95% CI 0.64–0.98) exert a protective effect against developing schizophrenia. However, the sub-analysis for the C957T variant showed that this polymorphism exhibits a risk factor effect on Chinese individuals (allelic model: OR 1.33, 95% CI 1.04–1.70). Conclusion Our meta-analysis suggests an association of the DRD2 gene and the risk for schizophrenia, given that TaqI and C957T polymorphisms presented a protective effect against schizophrenia, and in the sub-analyses the C957T variant increased the risk for this disorder in the Chinese population. Electronic supplementary material The online version of this article (doi:10.1186/s12993-016-0114-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Thelma Beatriz González-Castro
- División Académica Multidisciplinaria de Jalpa de Méndez, Universidad Juárez Autónoma de Tabasco, Jalpa de Méndez, Tabasco, Mexico
| | - Yazmín Hernández-Díaz
- División Académica Multidisciplinaria de Jalpa de Méndez, Universidad Juárez Autónoma de Tabasco, Jalpa de Méndez, Tabasco, Mexico
| | - Isela Esther Juárez-Rojop
- División Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tabasco, Mexico
| | | | - Carlos Alfonso Tovilla-Zárate
- División Académica Multidisciplinaria de Comalcalco, Universidad Juárez Autónoma de Tabasco, Ranchería Sur, Cuarta Sección, C.P. 86650, Comalcalco, Tabasco, Mexico.
| | - Alma Genis-Mendoza
- Secretaría de Salud, Instituto Nacional de Medicina Genómica (INMEGEN), Servicios de Atención Psiquiátrica (SAP), Ciudad de México, Mexico
| | - Mariela Alpuin-Reyes
- División Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tabasco, Mexico
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Zhao X, Huang Y, Chen K, Li D, Han C, Kan Q. -141C insertion/deletion polymorphism of the dopamine D2 receptor gene is associated with schizophrenia in Chinese Han population: Evidence from an ethnic group-specific meta-analysis. Asia Pac Psychiatry 2016; 8:189-98. [PMID: 26346037 DOI: 10.1111/appy.12206] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Accepted: 07/24/2015] [Indexed: 02/05/2023]
Abstract
Accumulate evidence has implicated dopamine D2 receptor gene polymorphisms in the etiology of schizophrenia. A single nucleotide polymorphism, -141C insertion/deletion (Ins/Del) (rs1799732), in the promoter region of the dopamine D2 receptor gene has been linked to schizophrenia; however, the data are inconclusive. This study investigated whether the -141C polymorphism is associated with the risk of schizophrenia in different ethnic groups by performing a meta-analysis. A total of 24 case-control studies examining the association between -141C Ins/Del polymorphism and schizophrenia were identified according to established inclusion criteria. Significant association was revealed between -141C Ins/Del polymorphism and schizophrenia risk in dominant genetic model (Ins/Ins + Ins/Del versus Del/Del) (odds ratio = 0.33, 95% confidence interval = 0.14-0.81, z = 2.41, P = 0.02) in Chinese Han but not in Caucasian, Japanese or India populations. Our results indicate that -141C Ins/Del polymorphism might be a susceptibility factor for schizophrenia in Chinese Han population.
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Affiliation(s)
- Xiaofeng Zhao
- Clinical Pharmacology Base, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yinglin Huang
- Department of Psychiatry, Shengjing Hospital of China Medical University, Shenyang, China
| | - Kaiyuan Chen
- Mental Health Center, Shantou University Medical College, Shantou, China
| | - Duolu Li
- Clinical Pharmacology Base, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Chao Han
- Clinical Pharmacology Base, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Quancheng Kan
- Clinical Pharmacology Base, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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12
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Eisenstein SA, Bogdan R, Love-Gregory L, Corral-Frías NS, Koller JM, Black KJ, Moerlein SM, Perlmutter JS, Barch DM, Hershey T. Prediction of striatal D2 receptor binding by DRD2/ANKK1 TaqIA allele status. Synapse 2016; 70:418-31. [PMID: 27241797 DOI: 10.1002/syn.21916] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 05/26/2016] [Accepted: 05/27/2016] [Indexed: 01/04/2023]
Abstract
In humans, the A1 (T) allele of the dopamine (DA) D2 receptor/ankyrin repeat and kinase domain containing 1 (DRD2/ANKK1) TaqIA (rs1800497) single nucleotide polymorphism has been associated with reduced striatal DA D2/D3 receptor (D2/D3R) availability. However, radioligands used to estimate D2/D3R are displaceable by endogenous DA and are nonselective for D2R, leaving the relationship between TaqIA genotype and D2R specific binding uncertain. Using the positron emission tomography (PET) radioligand, (N-[(11) C]methyl)benperidol ([(11) C]NMB), which is highly selective for D2R over D3R and is not displaceable by endogenous DA, the current study examined whether DRD2/ANKK1 TaqIA genotype predicts D2R specific binding in two independent samples. Sample 1 (n = 39) was composed of obese and nonobese adults; sample 2 (n = 18) was composed of healthy controls, unmedicated individuals with schizophrenia, and siblings of individuals with schizophrenia. Across both samples, A1 allele carriers (A1+) had 5 to 12% less striatal D2R specific binding relative to individuals homozygous for the A2 allele (A1-), regardless of body mass index or diagnostic group. This reduction is comparable to previous PET studies of D2/D3R availability (10-14%). The pooled effect size for the difference in total striatal D2R binding between A1+ and A1- was large (0.84). In summary, in line with studies using displaceable D2/D3R radioligands, our results indicate that DRD2/ANKK1 TaqIA allele status predicts striatal D2R specific binding as measured by D2R-selective [(11) C]NMB. These findings support the hypothesis that DRD2/ANKK1 TaqIA allele status may modify D2R, perhaps conferring risk for certain disease states.
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Affiliation(s)
- Sarah A Eisenstein
- Department of Psychiatry, Washington University in St. Louis, St. Louis, MO, 63110.,Department of Radiology, Washington University in St. Louis, St. Louis, MO, 63110
| | - Ryan Bogdan
- Department of Psychological & Brain Sciences, Washington University in St. Louis, St. Louis, MO, 63130
| | - Latisha Love-Gregory
- Department of Medicine, Washington University in St. Louis, St. Louis, MO, 63110
| | - Nadia S Corral-Frías
- Department of Psychiatry, Washington University in St. Louis, St. Louis, MO, 63110
| | - Jonathan M Koller
- Department of Psychiatry, Washington University in St. Louis, St. Louis, MO, 63110
| | - Kevin J Black
- Department of Psychiatry, Washington University in St. Louis, St. Louis, MO, 63110.,Department of Radiology, Washington University in St. Louis, St. Louis, MO, 63110.,Department of Neurology, Washington University in St. Louis, St. Louis, MO, 63110.,Department of Neuroscience, Washington University in St. Louis, St. Louis, MO, 63110
| | - Stephen M Moerlein
- Department of Radiology, Washington University in St. Louis, St. Louis, MO, 63110.,Department of Biochemistry, Washington University in St. Louis, St. Louis, MO, 63110
| | - Joel S Perlmutter
- Department of Radiology, Washington University in St. Louis, St. Louis, MO, 63110.,Department of Neurology, Washington University in St. Louis, St. Louis, MO, 63110.,Programs in Physical Therapy and Occupational Therapy, Washington University in St. Louis, St. Louis, MO, 63110
| | - Deanna M Barch
- Department of Psychiatry, Washington University in St. Louis, St. Louis, MO, 63110.,Department of Radiology, Washington University in St. Louis, St. Louis, MO, 63110.,Department of Psychological & Brain Sciences, Washington University in St. Louis, St. Louis, MO, 63130
| | - Tamara Hershey
- Department of Psychiatry, Washington University in St. Louis, St. Louis, MO, 63110.,Department of Radiology, Washington University in St. Louis, St. Louis, MO, 63110.,Department of Psychological & Brain Sciences, Washington University in St. Louis, St. Louis, MO, 63130.,Department of Neurology, Washington University in St. Louis, St. Louis, MO, 63110
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13
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Wang Y, Liu L, Xin L, Fan D, Ding N, Hu Y, Cai G, Wang L, Xia Q, Li X, Yang X, Zou Y, Pan F. The -141C Ins/Del and Taq1A polymorphism in the dopamine D2 receptor gene may confer susceptibility to schizophrenia in Asian populations. J Clin Neurosci 2016; 30:1-7. [PMID: 27283386 DOI: 10.1016/j.jocn.2015.10.052] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 10/27/2015] [Accepted: 10/31/2015] [Indexed: 11/24/2022]
Abstract
It has been reported that two single nucleotide polymorphisms (SNP) Taq1A and -141C Ins/Del in the DRD2 gene may be associated with susceptibility to schizophrenia. Due to inconclusive and mixed results, a meta-analysis was conducted to further clarify the relationship between the two SNP and schizophrenia susceptibility. A systematic literature search for the association of these two SNP with schizophrenia susceptibility was conducted using PubMed, ScienceDirect, Chinese Biomedical Literature Database, and Chinese National Knowledge Infrastructure. Odds ratios (OR) with 95% confidence intervals (CI) were used to assess the strength of the associations reported. A total of 5558 schizophrenic patients and 6792 healthy controls from 31 articles were included in this study. Evidence regarding the association between -141C Ins/Del polymorphism and schizophrenia was found in the allele frequency comparison (Ins versus Del: OR 1.29, 95% CI 1.06-1.57; p=0.01, Praw=0.1, PFalse Discovery Rate=0.023). In ethnic subgroup analysis, the result revealed that the 141C Ins/Del polymorphism was associated with schizophrenia in all genetic models in Asians, but not in Caucasians. For Taq1A polymorphism, a significant association was found in the allele frequency (A1 versus A2: OR 0.71, 95% CI 0.52-0.98, p=0.03). Stratification by ethnicity indicated an association between the Taq1A polymorphism and schizophrenia in Asians, but not Caucasians. The present study suggests that the -141C Ins/Del polymorphism carries a significantly increased risk of schizophrenia, while the Taq1A polymorphism carries a significantly decreased risk of schizophrenia susceptibility in Asians.
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Affiliation(s)
- Yurong Wang
- Medical Department of Hefei Vocational and Technical College, Hefei, Anhui, China
| | - Li Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Lihong Xin
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Dazhi Fan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Ning Ding
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Yanting Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Guoqi Cai
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Li Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Qing Xia
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Xiaona Li
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Xiao Yang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Yanfeng Zou
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Faming Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China.
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14
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Kim LH, Park BL, Cheong HS, Namgoong S, Kim JO, Kim JH, Shin JG, Park CS, Kim BJ, Kim JW, Choi IG, Hwang J, Shin HD, Woo SI. Genome-wide association study with the risk of schizophrenia in a Korean population. Am J Med Genet B Neuropsychiatr Genet 2016; 171B:257-65. [PMID: 26531332 DOI: 10.1002/ajmg.b.32400] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 10/23/2015] [Indexed: 11/10/2022]
Abstract
Schizophrenia is regarded as a multifactorial and polygenic brain disorder that is attributed to different combinations of genetic and environmental risk factors. Recently, several genome-wide association studies (GWASs) of schizophrenia have identified numerous risk factors, but the replication results remain controversial and ambiguous. To identify schizophrenia susceptibility loci in the Korean population, we performed a GWAS using the Illumina HumanOmni1-Quad V1.0 Microarray. We genotyped 1,140,419 single nucleotide polymorphisms (SNPs) in 350 Korea schizophrenia patients and 700 control subjects, and approximately 620,001 autosomal SNPs were passed our quality control. In the case-control analysis, the rs9607195 A>G on intergenic area 250 kb away from the ISX gene and the rs12738007 A>G on the intron of the MECR gene were the most strongly associated SNPs with the risk of schizophrenia (P = 6.2 × 10(-8) , OR = 0.50 and P = 3.7 × 10(-7) , OR = 2.39, respectively). In subsequent fine-mapping analysis, 6 SNPs of MECR were genotyped with 310 schizophrenia patients and 604 control subjects. The association of the MECR rs12738007, a top ranked-SNP in GWAS, was replicated (P = 1.5 × 10(-2) , OR = 1.53 in fine mapping analysis, P = 1.5 × 10(-6) , OR = 1.90 in combined analysis). The identification of putative schizophrenia susceptibility loci could provide new insights into genetic factors related with schizophrenia and clues for the development of diagnosis strategies.
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Affiliation(s)
- Lyoung Hyo Kim
- Department of Genetic Epidemiology, SNP Genetics, Inc., Mapo-gu, Seoul, Republic of Korea.,Department of Life Science, Sogang University, Mapo-gu, Seoul, Republic of Korea
| | - Byung Lae Park
- Department of Genetic Epidemiology, SNP Genetics, Inc., Mapo-gu, Seoul, Republic of Korea
| | - Hyun Sub Cheong
- Department of Genetic Epidemiology, SNP Genetics, Inc., Mapo-gu, Seoul, Republic of Korea
| | - Suhg Namgoong
- Department of Genetic Epidemiology, SNP Genetics, Inc., Mapo-gu, Seoul, Republic of Korea.,Department of Life Science, Sogang University, Mapo-gu, Seoul, Republic of Korea
| | - Ji On Kim
- Department of Genetic Epidemiology, SNP Genetics, Inc., Mapo-gu, Seoul, Republic of Korea
| | - Jeong-Hyun Kim
- Department of Life Science, Sogang University, Mapo-gu, Seoul, Republic of Korea
| | - Joong-Gon Shin
- Department of Life Science, Sogang University, Mapo-gu, Seoul, Republic of Korea
| | - Chul Soo Park
- Department of Psychiatry, College of Medicine, Gyeongsang National University, Gyeongsang Nam Do, Republic of Korea
| | - Bong-Jo Kim
- Department of Psychiatry, College of Medicine, Gyeongsang National University, Gyeongsang Nam Do, Republic of Korea
| | - Jae Won Kim
- Division of Life Science, Research Institute of Life Science, Gyeongsang National University, Jinju-ro, Gyeongsang Nam Do, Republic of Korea
| | - Ihn-Geun Choi
- Department of Neuropsychiatry, Hallym University, Han-Gang Sacred Heart Hospital, Yeongdeungpo-gu, Seoul, Republic of Korea
| | - Jaeuk Hwang
- Department of Neuropsychiatry, Soonchunhyang University Hospital, Yongsan-gu, Seoul, Republic of Korea
| | - Hyoung Doo Shin
- Department of Genetic Epidemiology, SNP Genetics, Inc., Mapo-gu, Seoul, Republic of Korea.,Department of Life Science, Sogang University, Mapo-gu, Seoul, Republic of Korea
| | - Sung-Il Woo
- Department of Neuropsychiatry, Soonchunhyang University Hospital, Yongsan-gu, Seoul, Republic of Korea
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15
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Association between ANKK1 (rs1800497) and LTA (rs909253) Genetic Variants and Risk of Schizophrenia. BIOMED RESEARCH INTERNATIONAL 2015. [PMID: 26114114 DOI: 10.1155/2015/821827]] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Limited research has assessed associations between schizophrenia and genetic variants of the ankyrin repeat and kinase domain containing 1 (ANKK1) and lymphotoxin-alpha (LTA) genes among individuals of Middle Eastern ancestry. Here we present the first association study investigating the ANKK1 rs1800497 (T>C) and LTA rs909253 (A>G) single-nucleotide polymorphisms in an Egyptian population. Among 120 patients with DSM-IV and PANSS (Positive and Negative Syndrome Scale) assessments of schizophrenia and 100 healthy controls, we determined the genotypes for the polymorphisms using endonuclease digestion of amplified genomic DNA. Results confirmed previous findings from different ethnic populations, in that the rs1800497 and rs909253 polymorphisms were both associated with risk of schizophrenia. Differences between the genotypes of cases and controls were strongly significant (P = 0.0005 for rs1800497 and P = 0.001 for rs909253). The relative risk to schizophrenia was 1.2 (P = 0.01) for the C allele and 0.8 (P = 0.04) for the G allele. The CC, GG, and combined CC/AA genotypes were all more frequent in cases than in controls. These results support an association between ANKK1 and LTA genetic markers and vulnerability to schizophrenia and show the potential influence of just one copy of the mutant C or G allele in the Egyptian population.
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16
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Watanabe Y, Shibuya M, Someya T. DRD2 Ser311Cys polymorphism and risk of schizophrenia. Am J Med Genet B Neuropsychiatr Genet 2015; 168B:224-8. [PMID: 25711927 DOI: 10.1002/ajmg.b.32303] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 02/04/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Yuichiro Watanabe
- Department of Psychiatry, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan; Division of Medical Education, Comprehensive Medical Education Center, School of Medicine, Faculty of Medicine, Niigata University, Niigata, Japan
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17
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Yao J, Pan YQ, Ding M, Pang H, Wang BJ. Association between DRD2 (rs1799732 and rs1801028) and ANKK1 (rs1800497) polymorphisms and schizophrenia: a meta-analysis. Am J Med Genet B Neuropsychiatr Genet 2015; 168B:1-13. [PMID: 25504812 DOI: 10.1002/ajmg.b.32281] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Accepted: 10/16/2014] [Indexed: 01/22/2023]
Abstract
The role of dopamine D2 receptor (DRD2) polymorphisms in schizophrenia remains controversial. We performed a meta-analysis to determine whether DRD2 polymorphisms influence the risk of schizophrenia and examined the relationship between rs1799732, rs1801028, and rs1800rs028 an23381d rs1800497 genetic variants and the etiology of schizophrenia. Relevant case-control studies were retrieved by database searches and selected according to established inclusion criteria. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated to evaluate the strength of the associations. Meta-regression, subgroup analysis, sensitivity analysis, and cumulative meta-analysis were performed. A total of 76 studies with 16096 cases and 18965 controls were included. Specifically, 24 studies with 6075 cases and 6643 controls involved rs1799732, 36 studies with 8043 cases and 10194 controls involved rs1801028 and 16 studies with 1978 cases and 2128 controls involved rs1800497. No significant associations were observed between rs1799732 and rs1800rs732 and rs1800497 and schizophrenia. The rs1801028 locus was associated with schizophrenia, with a pooled OR of 1.221 (95% CI = 1.037-1.438, P = 0.016). This meta-analysis indicates that the rs1801028 locus may be associated with schizophrenia. These data provide possible references for future case-control studies related to schizophrenia.
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Affiliation(s)
- Jun Yao
- School of Forensic Medicine, China Medical University, Shenyang, 110001, China
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18
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Arab AH, Elhawary NA. Association between ANKK1 (rs1800497) and LTA (rs909253) Genetic Variants and Risk of Schizophrenia. BIOMED RESEARCH INTERNATIONAL 2015; 2015:821827. [PMID: 26114114 PMCID: PMC4465678 DOI: 10.1155/2015/821827] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 05/18/2015] [Indexed: 02/05/2023]
Abstract
Limited research has assessed associations between schizophrenia and genetic variants of the ankyrin repeat and kinase domain containing 1 (ANKK1) and lymphotoxin-alpha (LTA) genes among individuals of Middle Eastern ancestry. Here we present the first association study investigating the ANKK1 rs1800497 (T>C) and LTA rs909253 (A>G) single-nucleotide polymorphisms in an Egyptian population. Among 120 patients with DSM-IV and PANSS (Positive and Negative Syndrome Scale) assessments of schizophrenia and 100 healthy controls, we determined the genotypes for the polymorphisms using endonuclease digestion of amplified genomic DNA. Results confirmed previous findings from different ethnic populations, in that the rs1800497 and rs909253 polymorphisms were both associated with risk of schizophrenia. Differences between the genotypes of cases and controls were strongly significant (P = 0.0005 for rs1800497 and P = 0.001 for rs909253). The relative risk to schizophrenia was 1.2 (P = 0.01) for the C allele and 0.8 (P = 0.04) for the G allele. The CC, GG, and combined CC/AA genotypes were all more frequent in cases than in controls. These results support an association between ANKK1 and LTA genetic markers and vulnerability to schizophrenia and show the potential influence of just one copy of the mutant C or G allele in the Egyptian population.
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Affiliation(s)
- Arwa H. Arab
- 1Department of Psychology, Faculty of Arts and Humanities, King Abdulaziz University, P.O. Box 80200, Jeddah 21589, Saudi Arabia
| | - Nasser A. Elhawary
- 2Department of Medical Genetics, Faculty of Medicine, Umm Al-Qura University, P.O. Box 57543, Mecca 21955, Saudi Arabia
- 3Department of Molecular Genetics, Faculty of Medicine, Ain Shams University, Cairo 11566, Egypt
- *Nasser A. Elhawary:
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19
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Family-based association study of common variants, rare mutation study and epistatic interaction detection in HDAC genes in schizophrenia. Schizophr Res 2014; 160:97-103. [PMID: 25445625 DOI: 10.1016/j.schres.2014.09.029] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Revised: 09/18/2014] [Accepted: 09/21/2014] [Indexed: 11/20/2022]
Abstract
BACKGROUND Histone deacetylases (HDACs) are key enzymes of histone acetylation, and abnormalities in histone modifications and in the level of HDAC proteins have been reported in schizophrenia. The objective of the present study was to systematically test the HDAC genes for its association with schizophrenia. METHODS A family-based genetic association study (951 Caucasian subjects in 313 nuclear families) using 601 tag-single nucleotide polymorphisms in HDAC genes was conducted followed by a replication study of top-ranked markers in a sample of 1427 Caucasian subjects from 241 multiplex families and 176 trios. Epistasis interaction was tested by using the pedigree-based generalized multifactor dimensionality reduction (GMDR). Furthermore, we analyzed exome sequencing data of 1134 subjects for detection of rare mutations in HDAC genomic regions. RESULTS In the exploratory study, ten markers were in significant association with schizophrenia (P<0.01). One maker rs14251 (HDAC3) was replicated (P=0.04) and remained significant in the whole sample (P=0.004). GMDR identified that a significant three-locus interaction model was detected involving rs17265596 (HDAC9), rs7290710 (HDAC10) and rs7634112 (HDAC11) with a good testing accuracy (0.58). No rare mutations were found associated with schizophrenia. CONCLUSION This first exploratory systematic study of the HDAC genes provides consistent support for the involvement of the HDAC3 gene in the etiology of schizophrenia. A statistical epistatic interaction between HDAC9, HDAC10, and HDAC11 was detected and seems biologically plausible.
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20
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Kaalund SS, Newburn EN, Ye T, Tao R, Li C, Deep-Soboslay A, Herman MM, Hyde TM, Weinberger DR, Lipska BK, Kleinman JE. Contrasting changes in DRD1 and DRD2 splice variant expression in schizophrenia and affective disorders, and associations with SNPs in postmortem brain. Mol Psychiatry 2014; 19:1258-66. [PMID: 24322206 DOI: 10.1038/mp.2013.165] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Revised: 10/04/2013] [Accepted: 10/17/2013] [Indexed: 12/29/2022]
Abstract
Dopamine 2 receptor (DRD2) is of major interest to the pathophysiology of schizophrenia (SCZ) both as a target for antipsychotic drug action as well as a SCZ-associated risk gene. The dopamine 1 receptor (DRD1) is thought to mediate some of the cognitive deficits in SCZ, including impairment of working memory that relies on normal dorsolateral prefrontal cortex (DLPFC) function. To better understand the association of dopamine receptors with SCZ, we studied the expression of three DRD2 splice variants and the DRD1 transcript in DLPFC, hippocampus and caudate nucleus in a large cohort of subjects (~700), including patients with SCZ, affective disorders and nonpsychiatric controls (from 14th gestational week to 85 years of age), and examined genotype-expression associations of 278 single-nucleotide polymorphisms (SNPs) located in or near DRD2 and DRD1 genes. Expression of D2S mRNA and D2S/D2-long (D2L) ratio were significantly increased in DLPFC of patients with SCZ relative to controls (P<0.0001 and P<0.0001, respectively), whereas D2L, D2Longer and DRD1 were decreased (P<0.0001). Patients with affective disorders showed an opposite pattern: reduced expression of D2S (major depressive disorder, P<0.0001) and increased expression of D2L and DRD1 (bipolar disorder, P<0.0001). Moreover, SCZ-associated risk alleles at rs1079727, rs1076560 and rs2283265 predicted increased D2S/D2L expression ratio (P<0.05) in control individuals. Our data suggest that altered splicing of DRD2 and expression of DRD1 may constitute a pathophysiological mechanism in risk for SCZ and affective disorders. The association between SCZ risk-associated polymorphism and the ratio of D2S/D2L is consistent with this possibility.
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Affiliation(s)
- S S Kaalund
- 1] Human Brain Collection Core, IRP, National Institute of Mental Health, Bethesda, MD, USA [2] Research Laboratory for Stereology and Neuroscience, Bispebjerg University Hospital, Copenhagen NV, Denmark [3] Faculty of Health Sciences, Protein Laboratory, Institute of Neuroscience and Pharmacology, University of Copenhagen, Copenhagen, Denmark
| | - E N Newburn
- Human Brain Collection Core, IRP, National Institute of Mental Health, Bethesda, MD, USA
| | - T Ye
- Lieber Institute for Brain Development, Baltimore, MD, USA
| | - R Tao
- Lieber Institute for Brain Development, Baltimore, MD, USA
| | - C Li
- Lieber Institute for Brain Development, Baltimore, MD, USA
| | | | - M M Herman
- Human Brain Collection Core, IRP, National Institute of Mental Health, Bethesda, MD, USA
| | - T M Hyde
- Lieber Institute for Brain Development, Baltimore, MD, USA
| | - D R Weinberger
- Lieber Institute for Brain Development, Baltimore, MD, USA
| | - B K Lipska
- Human Brain Collection Core, IRP, National Institute of Mental Health, Bethesda, MD, USA
| | - J E Kleinman
- Lieber Institute for Brain Development, Baltimore, MD, USA
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21
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Zhang C, Zhang J, Fan J, Cheng W, Du Y, Yu S, Fang Y. Identification of ANKK1 rs1800497 variant in schizophrenia: new data and meta-analysis. Am J Med Genet B Neuropsychiatr Genet 2014; 165B:564-71. [PMID: 25073965 DOI: 10.1002/ajmg.b.32259] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Accepted: 06/26/2014] [Indexed: 12/25/2022]
Abstract
One functional polymorphism (rs1800497) within the ankyrin repeat and kinase domain containing-1 gene (ANKK1) was reported to be associated with schizophrenia, but results among different studies vary and conclusions remain controversial. The present study sought to clarify this potential association among a population of Han Chinese with early onset schizophrenia using a case-control (396 patients and 399 controls) and family based study (103 trios). We then performed a meta-analysis (comprising 11 case-control and 2 family-based studies) based on the present literature. Results of the association study revealed no significant difference in allele and genotype frequencies between the cases and controls, and no significant transmission distortion was detected. Kaplan-Meier survival analysis showed that age at onset in schizophrenia was significantly associated with the rs1800497 polymorphism in female patients, but not in males. Female T allele carriers had a lower age at onset than those without T allele (log rank statistic χ(2) = 5.16, P = 0.023; corrected P = 0.046). Meta-analysis results indicated that rs1800497 is not associated with schizophrenia in the overall population (P = 0.77 for the case-control studies; P = 0.06 for the family-based studies). Our results support the hypothesis that rs1800497 polymorphism is likely to have a modifying rather than causative effect on schizophrenia. These findings may represent a significant genetic clue for the etiology of schizophrenia in females, but further investigation is required to clarify the exact role of ANKK1 in the development of schizophrenia.
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Affiliation(s)
- Chen Zhang
- Schizophrenia Program, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Kunming, Yunnan, China
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22
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Liu L, Fan D, Ding N, Hu Y, Cai G, Wang L, Xin L, Xia Q, Li X, Xu S, Xu J, Yang X, Zou Y, Pan F. The relationship between DRD2 gene polymorphisms (C957T and C939T) and schizophrenia: a meta-analysis. Neurosci Lett 2014; 583:43-8. [PMID: 25240594 DOI: 10.1016/j.neulet.2014.09.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Revised: 08/14/2014] [Accepted: 09/09/2014] [Indexed: 01/02/2023]
Abstract
Schizophrenia is a common, complex multi-factorial psychiatric disorder. Many studies have reported associations between the C957T and C939T polymorphisms in Dopamine D2 receptor (DRD2) gene and schizophrenia, but results are inconsistent. To derive a more precise estimation of the relationship, a meta-analysis was conducted to systematically summarize the possibility. We included 13 articles involving 3079 schizophrenia cases and 3851 healthy controls. Positive associations were found between C957T polymorphism and schizophrenia risk in C vs. T (OR=1.26, 95% CI=1.09-1.46, Praw=0.002, PFDR=0.005) and CC+CT vs. TT (OR=1.47, 95% CI=1.25-1.73, Praw<0.001, PFDR<0.001). When stratified by race, a significantly increased risk of schizophrenia was observed in Caucasians, but not in Asians. No association between C939T polymorphism and schizophrenia was found in overall or Asian population. Our study suggested that C957T of DRD2 gene polymorphism is likely to be a risk factor for schizophrenia, especially in Caucasian.
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Affiliation(s)
- Li Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Dazhi Fan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Ning Ding
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Yanting Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Guoqi Cai
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Li Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Lihong Xin
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Qin Xia
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Xiaona Li
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Shengqian Xu
- Department of Rheumatism and Immunity, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Jianhua Xu
- Department of Rheumatism and Immunity, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Xiao Yang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Yanfeng Zou
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Faming Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China.
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Bruenig D, White MJ, Young RM, Voisey J. Subclinical psychotic experiences in healthy young adults: associations with stress and genetic predisposition. Genet Test Mol Biomarkers 2014; 18:683-9. [PMID: 25184405 DOI: 10.1089/gtmb.2014.0111] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Stress has been identified as a common trigger for psychosis. Dopamine pathways are suggested to be affected by chronic and severe stress and to play an important role in psychosis. This pilot study investigates the potential relationship of stress and psychosis in subclinical psychotic experiences. It was hypothesized that single-nucleotide polymorphisms (SNPs) previously found to be associated with psychiatric disorders would be associated with both stress and subclinical psychotic experiences. University students (N=182) were genotyped for 17 SNPs across 11 genes. Higher stress reporting was associated with rs4680 COMT, rs13211507 HLA region, and rs13107325 SLC39A8. Reports of higher subclinical psychotic experiences were associated with DRD2 SNPs rs17601612 and rs658986 and an AKT1 SNP rs2494732. Replication studies are recommended to further pursue this line of research for identification of markers of psychosis for early diagnosis and intervention.
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Affiliation(s)
- Dagmar Bruenig
- Institute of Health and Biomedical Innovation, Queensland University of Technology , Kelvin Grove, Australia
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Kunii Y, Miura I, Matsumoto J, Hino M, Wada A, Niwa SI, Nawa H, Sakai M, Someya T, Takahashi H, Kakita A, Yabe H. Elevated postmortem striatal t-DARPP expression in schizophrenia and associations with DRD2/ANKK1 polymorphism. Prog Neuropsychopharmacol Biol Psychiatry 2014; 53:123-8. [PMID: 24704945 DOI: 10.1016/j.pnpbp.2014.03.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2014] [Revised: 03/18/2014] [Accepted: 03/25/2014] [Indexed: 11/26/2022]
Abstract
BACKGROUND Dopamine- and cAMP-regulated phosphoprotein of molecular weight 32 kDa (DARPP-32) and calcineurin (CaN) have been implicated in the pathogenesis of schizophrenia because they function as molecular integrators of dopamine and glutamate signaling. DARPP-32 and CaN are mainly expressed in the caudate nucleus and putamen; however, a few postmortem brain studies have focused on DARPP-32 expression in striatum from patients with schizophrenia. METHODS We used immunoblotting techniques and postmortem tissue samples from patients with schizophrenia and from normal control individuals to examine the expression of two major DARPP-32 isoforms, full-length (FL-DARPP) and truncated (t-DARPP), and of CaN in the striatum. We also assessed whether there was any significant correlation between the expression levels of either protein and the A1 allele of Taq1A genotype in the dopamine D2 receptor (DRD2) gene/ankyrin-repeat containing kinase 1 (ANKK1) gene. RESULTS We found that the mean t-DARPP expression level in the caudate was higher in patients with schizophrenia than in control individuals (P<0.05) and the A1 allele of Taq1A genotype in DRD2/ANKK1 was significantly associated with elevated expression of t-DARPP in the caudate. Also, the A1 allele was significantly correlated with the total score of antemortem psychiatric symptoms. CONCLUSION These results may reflect potential molecular mechanisms important to the pathogenesis of schizophrenia.
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Affiliation(s)
- Yasuto Kunii
- Department of Neuropsychiatry, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, Fukushima 960-1295, Japan.
| | - Itaru Miura
- Department of Neuropsychiatry, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, Fukushima 960-1295, Japan
| | - Junya Matsumoto
- Department of Neuropsychiatry, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, Fukushima 960-1295, Japan
| | - Mizuki Hino
- Department of Neuropsychiatry, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, Fukushima 960-1295, Japan
| | - Akira Wada
- Department of Neuropsychiatry, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, Fukushima 960-1295, Japan
| | - Shin-ichi Niwa
- Department of Neuropsychiatry, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, Fukushima 960-1295, Japan
| | - Hiroyuki Nawa
- Department of Molecular Neurobiology, Brain Research Institute, Niigata University, 1-757 Asahimachi-dori, Niigata, Niigata 951-8585, Japan
| | - Miwako Sakai
- Department of Molecular Neurobiology, Brain Research Institute, Niigata University, 1-757 Asahimachi-dori, Niigata, Niigata 951-8585, Japan
| | - Toshiyuki Someya
- Department of Psychiatry, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, Niigata, Niigata 951-8585, Japan
| | - Hitoshi Takahashi
- Department of Pathology, Brain Research Institute, University of Niigata, 1-757 Asahimachi-dori, Niigata, Niigata 951-8585, Japan
| | - Akiyoshi Kakita
- Department of Pathology, Brain Research Institute, University of Niigata, 1-757 Asahimachi-dori, Niigata, Niigata 951-8585, Japan
| | - Hirooki Yabe
- Department of Neuropsychiatry, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, Fukushima 960-1295, Japan
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25
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Shoji A. Miscegenation and heterogeneity of a Brazilian sample of schizophrenics: are they reason enough? ARQUIVOS DE NEURO-PSIQUIATRIA 2014; 72:580-581. [PMID: 25098473 DOI: 10.1590/0004-282x20140116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2014] [Accepted: 06/30/2014] [Indexed: 06/03/2023]
Affiliation(s)
- Alexandre Shoji
- Departamento de Medicina Nuclear, Faculdade de Medicina, Universidade de São Paulo, Sao Paulo, SP, Brazil
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26
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Brichant-Petitjean C, Legauffre C, Ramoz N, Ades J, Gorwood P, Dubertret C. Memory deficits in late-onset schizophrenia. Schizophr Res 2013; 151:85-90. [PMID: 24129041 DOI: 10.1016/j.schres.2013.08.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Revised: 07/29/2013] [Accepted: 08/14/2013] [Indexed: 11/24/2022]
Abstract
Late-onset schizophrenia (LOS) is a controversial diagnosis, mainly characterized by more positive symptoms and less deterioration. LOS could be considered as either an extreme of typical schizophrenia (but for old age patients, and short duration of the disorder), or an independent group of patients with a specific diagnosis, with no clear evidence in favor or against any of these hypotheses. The aim of the present study is to characterize the memory cognitive profile of LOS patients without related organic factors (N=25), compared to early-onset schizophrenic patients (EOS, N=44), matched for the duration of the disorder, and healthy controls (HC, N=23), matched for the age of patients. Lifetime clinical symptoms and functioning were collected using the DIGS and the PANSS, and components of memory capacity were assessed with the Forward and Backward Digit Span Tasks, Rey Complex Figure and Verbal Fluency Tests. LOS patients were performing significantly better than EOS patients on the digit span task, Rey's complex figure at T1 score and phonemic verbal fluency. However, LOS had significantly lower performances than healthy controls on the digit span task and on both verbal fluency tests. This study provides evidence that LOS had intermediate outcome compared to EOS and controls. LOS can therefore be in line with a dimensional clinical approach of schizophrenia, whereby it presents few memory deficits and few disorganization and negative symptoms with mostly positive symptoms and possibly etiopathogenic specificities. Further studies including more specific memory assessment tests and larger samples are needed to confirm the present finding.
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27
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Giegling I, Balzarro B, Porcelli S, Schäfer M, Hartmann AM, Friedl M, Konte B, Krämer P, Möller HJ, De Ronchi D, Stassen HH, Serretti A, Rujescu D. Influence of ANKK1 and DRD2 polymorphisms in response to haloperidol. Eur Arch Psychiatry Clin Neurosci 2013; 263:65-74. [PMID: 22893251 DOI: 10.1007/s00406-012-0348-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2012] [Accepted: 07/27/2012] [Indexed: 10/28/2022]
Abstract
The present study explores whether ankyrin repeat and kinase domain containing 1 (ANKK1) and dopamine receptor D2 (DRD2) variants could predict efficacy and tolerability of haloperidol in the treatment of psychotic patients. We also attempted to replicate findings in a group of schizophrenic patients from the Clinical Antipsychotic Trials in Intervention Effectiveness (CATIE) study. Eighty-eight acutely psychotic patients were genotyped for 9 ANKK1 and 27 DRD2 SNPs. Treatment efficacy and tolerability were assessed using the Positive and Negative Symptoms Scale and the Udvalg for Kliniske Undersogelser side effects rating scales, respectively. Multivariate analyses were employed to test possible influences of single-nucleotide polymorphisms on clinical and safety variables. Analysis of haplotypes was also performed. Outcomes in the replication sample were response versus nonresponse and the presence versus absence of motor side effects at 1 month of treatment. rs2242592 within ANKK1 gene and rs1124493 within DRD2 gene were associated with clinical improvement (p = 0.008 and p = 0.001, respectively). Results were confirmed in the allelic analysis. Three haplotype blocks, one among ANKK1 and two among DRD2 gene were associated with better clinical improvement. Our results were not replicated in the CATIE sample, although rs11604671, which is in strong linkage disequilibrium with rs2242592, was associated with response in the replication sample. Our findings support a possible role of ANKK1 and DRD2 variability on haloperidol efficacy. However, due to the discrepancies between the results in the two samples, our results need further validation.
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Affiliation(s)
- Ina Giegling
- Department of Psychiatry, Ludwig Maximilians University, Munich, Germany
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28
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Mota NR, Araujo-Jnr EV, Paixão-Côrtes VR, Bortolini MC, Bau CHD. Linking dopamine neurotransmission and neurogenesis: The evolutionary history of the NTAD (NCAM1-TTC12-ANKK1-DRD2) gene cluster. Genet Mol Biol 2012; 35:912-8. [PMID: 23412349 PMCID: PMC3571431 DOI: 10.1590/s1415-47572012000600004] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Genetic studies have long suggested the important role of the DRD2 gene in psychiatric disorders and behavior. Further research has shown a conjoined effect of genes in the Chr11q22–23 region, which includes the NCAM1, TTC12, ANKK1 and DRD2 genes, or NTAD cluster. Despite a growing need to unravel the role of this cluster, few studies have taken into account interspecies and evolutionary approaches. This study shows that behaviorally relevant SNPs from the NTAD cluster, such as rs1800497 (Taq1A) and rs6277, are ancient polymorphisms that date back to the common ancestor between modern humans and Neanderthals/Denisovans. Conserved synteny and neighborhood indicate the NTAD cluster seems to have been established at least 400 million years ago, when the first Sarcopterygians emerged. The NTAD genes are apparently co-regulated and this could be attributed to adaptive functional properties, including those that emerged when the central nervous system became more complex. Finally, our findings indicate that NTAD genes, which are related to neurogenesis and dopaminergic neurotransmission, should be approached as a unit in behavioral and psychiatric genetic studies.
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Affiliation(s)
- Nina Roth Mota
- Departamento de Genética, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
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Sensorimotor gating and D2 receptor signalling: evidence from a molecular genetic approach. Int J Neuropsychopharmacol 2012; 15:1427-40. [PMID: 22244514 DOI: 10.1017/s1461145711001787] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Converging evidence from pharmacological investigations, genetic association studies and schizophrenia research indicates an important influence of the dopamine system on sensorimotor gating as measured by prepulse inhibition (PPI) of the acoustic startle response. In particular, D2 receptor agonists have been shown to disrupt PPI in humans and rodents. In the present study, we investigated the associations of two functional DRD2 related single nucleotide polymorphisms (rs4648317 and rs1800497, the latter also known as DRD2/ANKK1 Taq1A) with PPI in two independent healthy human samples (overall n=197; Munich n=101; London n=96). Taq1A is a prominent marker of striatal D2 receptor signalling and was therefore hypothesized to impact on PPI. In line with our hypothesis, we report here reduced PPI levels in individuals with higher striatal D2 receptor signalling as indicated by the Taq1A genotype. Meta-analysis across both samples confirmed this finding. In contrast, an association between rs4648317 and PPI found in the Munich sample could not be confirmed in the London sample. Overall, the present study helps to bridge the gap between pharmacological manipulations of PPI and molecular genetics of the dopaminergic system.
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30
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Genetics of dopamine receptors and drug addiction. Hum Genet 2012; 131:803-22. [PMID: 22350797 DOI: 10.1007/s00439-012-1145-7] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Accepted: 02/04/2012] [Indexed: 01/18/2023]
Abstract
Dopamine plays a key role in reward behavior, yet the association of drug dependence as a chronic, relapsing disorder with the genes encoding the various dopaminergic receptor subtypes remains difficult to delineate. In the context of subsequent genome-wide association (GWAS) research and post-GWAS investigations, we summarize the novel data that link genes encoding molecules involved in the dopaminergic system (dopamine receptors, transporter and enzymes in charge of its metabolism) to drug addiction. Recent reports indicate that the heritability of drug addiction should be high enough to allow a significant role for a specific set of genes, and the available genetic studies, which might not be already conclusive because of the heterogeneity of designs, methods and recruited samples, should support the idea of a significant role of at least one gene related to dopaminergic system. Evolutionary changes in primates and non-primate animals of genes coding for molecules involved in dopaminergic system highlight why addictive disorders are mainly limited to humans. Restricting the analyses to more specific intermediate phenotypes (or endophenotypes) such as attention allocation, stress reactivity, novelty seeking, behavioral disinhibition and impulsivity, instead of the broad addictive disorder concept can be instrumental to identify novel genes associated with these traits in the context of genome-wide studies.
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31
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Roetker NS, Yonker JA, Lee C, Chang V, Basson JJ, Roan CL, Hauser TS, Hauser RM, Atwood CS. Multigene interactions and the prediction of depression in the Wisconsin Longitudinal Study. BMJ Open 2012; 2:bmjopen-2012-000944. [PMID: 22761283 PMCID: PMC3391375 DOI: 10.1136/bmjopen-2012-000944] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
OBJECTIVES Single genetic loci offer little predictive power for the identification of depression. This study examined whether an analysis of gene-gene (G × G) interactions of 78 single nucleotide polymorphisms (SNPs) in genes associated with depression and age-related diseases would identify significant interactions with increased predictive power for depression. DESIGN A retrospective cohort study. SETTING A survey of participants in the Wisconsin Longitudinal Study. PARTICIPANTS A total of 4811 persons (2464 women and 2347 men) who provided saliva for genotyping; the group comes from a randomly selected sample of Wisconsin high school graduates from the class of 1957 as well as a randomly selected sibling, almost all of whom are non-Hispanic white. PRIMARY OUTCOME MEASURE Depression as determine by the Composite International Diagnostic Interview-Short-Form. RESULTS Using a classification tree approach (recursive partitioning (RP)), the authors identified a number of candidate G × G interactions associated with depression. The primary SNP splits revealed by RP (ANKK1 rs1800497 (also known as DRD2 Taq1A) in men and DRD2 rs224592 in women) were found to be significant as single factors by logistic regression (LR) after controlling for multiple testing (p=0.001 for both). Without considering interaction effects, only one of the five subsequent RP splits reached nominal significance in LR (FTO rs1421085 in women, p=0.008). However, after controlling for G × G interactions by running LR on RP-specific subsets, every split became significant and grew larger in magnitude (OR (before) → (after): men: GNRH1 novel SNP: (1.43 → 1.57); women: APOC3 rs2854116: (1.28 → 1.55), ACVR2B rs3749386: (1.11 → 2.17), FTO rs1421085: (1.32 → 1.65), IL6 rs1800795: (1.12 → 1.85)). CONCLUSIONS The results suggest that examining G × G interactions improves the identification of genetic associations predictive of depression. 4 of the SNPs identified in these interactions were located in two pathways well known to impact depression: neurotransmitter (ANKK1 and DRD2) and neuroendocrine (GNRH1 and ACVR2B) signalling. This study demonstrates the utility of RP analysis as an efficient and powerful exploratory analysis technique for uncovering genetic and molecular pathway interactions associated with disease aetiology.
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Affiliation(s)
- Nicholas S Roetker
- Department of Sociology, University of Wisconsin, Madison, Wisconsin, USA
| | - James A Yonker
- Department of Sociology, University of Wisconsin, Madison, Wisconsin, USA
| | - Chee Lee
- Department of Sociology, University of Wisconsin, Madison, Wisconsin, USA
| | - Vicky Chang
- Department of Sociology, University of Wisconsin, Madison, Wisconsin, USA
| | - Jacob J Basson
- Department of Medicine, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin, USA
| | - Carol L Roan
- Department of Sociology, University of Wisconsin, Madison, Wisconsin, USA
| | - Taissa S Hauser
- Department of Sociology, University of Wisconsin, Madison, Wisconsin, USA
| | - Robert M Hauser
- Department of Sociology, University of Wisconsin, Madison, Wisconsin, USA
| | - Craig S Atwood
- Geriatric Research, Education and Clinical Center, William S. Middleton Memorial Veterans Hospital, Madison, WI
- Department of Medicine, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin, USA
- School of Exercise, Biomedical and Health Sciences, Edith Cowan University, Joondalup, Australia
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32
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Hahn E, Ta TMT, Hahn C, Kuehl LK, Ruehl C, Neuhaus AH, Dettling M. Test-retest reliability of Attention Network Test measures in schizophrenia. Schizophr Res 2011; 133:218-22. [PMID: 22000937 DOI: 10.1016/j.schres.2011.09.026] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Revised: 09/10/2011] [Accepted: 09/18/2011] [Indexed: 10/16/2022]
Abstract
BACKGROUND The Attention Network Test (ANT) is a well established behavioral measure in neuropsychological research to assess three different facets of selective attention, i.e., alerting, orienting, and conflict processing. Although the ANT has been applied in healthy individuals and various clinical populations, data on retest reliability are scarce in healthy samples and lacking for clinical populations. The objective of the present study was a longitudinal assessment of relevant ANT network measures in healthy controls and schizophrenic patients. METHODS Forty-five schizophrenic patients and 55 healthy controls were tested with ANT in a test-retest design with an average interval of 7.4 months between test sessions. Test-retest reliability was analyzed with Pearson and Intra-class correlations. RESULTS Healthy controls revealed moderate to high test-retest correlations for mean reaction time, mean accuracy, conflict effect, and conflict error rates. In schizophrenic patients, moderate test-retest correlations for mean reaction time, orienting effect, and conflict effect were found. The analysis of error rates in schizophrenic patients revealed very low test-retest correlations. CONCLUSIONS The current study provides converging statistical evidence that the conflict effect and mean reaction time of ANT yield acceptable test-retest reliabilities in healthy controls and, investigated longitudinally for the first time, also in schizophrenia. Obtained differences of alerting and orienting effects in schizophrenia case-control studies should be considered more carefully. The analysis of error rates revealed heterogeneous results and therefore is not recommended for case control studies in schizophrenia.
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Affiliation(s)
- Eric Hahn
- Department of Psychiatry and Psychotherapy, Charité University Medicine, Campus Benjamin Franklin, Berlin, Germany.
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33
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Voisey J, Swagell CD, Hughes IP, Lawford BR, Young RM, Morris CP. A novel DRD2 single-nucleotide polymorphism associated with schizophrenia predicts age of onset: HapMap tag-single-nucleotide polymorphism analysis. Genet Test Mol Biomarkers 2011; 16:77-81. [PMID: 21861710 DOI: 10.1089/gtmb.2011.0085] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Dopamine D2 receptor (DRD2) is thought to be critical in regulating the dopaminergic pathway in the brain, which is known to be important in the etiology of schizophrenia. It is, therefore, not surprising that most antipsychotic medication acts on DRD2. DRD2 is widely expressed in the brain; levels are reduced in the brains of patients with schizophrenia, and DRD2 polymorphisms have been associated with reduced brain expression. We have previously identified a genetic variant in DRD2, rs6277 to be strongly implicated in schizophrenia susceptibility. METHODS To identity new associations in the DRD2 gene with disease status and clinical severity, we genotyped seven single-nucleotide polymorphisms (SNPs) in DRD2 by using a multiplex mass spectrometry method. SNPs were chosen by using a haplotype block-based gene-tagging approach; so, the entire DRD2 gene was represented. RESULTS One polymorphism, rs2734839 was found to be significantly associated with schizophrenia as well as late onset age. Individuals carrying the genetic variation were more than twice as likely to have schizophrenia compared with controls. CONCLUSIONS Our results suggest that DRD2 genetic variation is a good indicator for schizophrenia risk and may also be used as a predictor of age of onset.
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Affiliation(s)
- Joanne Voisey
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia.
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