1
|
Guo X, Chen Y, Huang H, Liu Y, Kong L, Chen L, Lyu H, Gao T, Lai J, Zhang D, Hu S. Serum signature of antibodies to Toxoplasma gondii, rubella virus, and cytomegalovirus in females with bipolar disorder: A cross-sectional study. J Affect Disord 2024; 361:82-90. [PMID: 38844171 DOI: 10.1016/j.jad.2024.06.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2024] [Revised: 05/29/2024] [Accepted: 06/03/2024] [Indexed: 06/13/2024]
Abstract
BACKGROUND AND AIM Immunity alterations have been observed in bipolar disorder (BD). However, whether serum positivity of antibodies to Toxoplasma gondii (T gondii), rubella, and cytomegalovirus (CMV) shared clinical relevance with BD, remains controversial. This study aimed to investigate this association. METHODS Antibody seropositivity of IgM and IgG to T gondii, rubella virus, and CMV of females with BD and controls was extracted based on medical records from January 2018 to January 2023. Family history, type of BD, onset age, and psychotic symptom history were also collected. RESULTS 585 individuals with BD and 800 healthy controls were involved. Individuals with BD revealed a lower positive rate of T gondii IgG in the 10-20 aged group (OR = 0.10), and a higher positive rate of rubella IgG in the 10-20 (OR = 5.44) and 20-30 aged group (OR = 3.15). BD with family history preferred a higher positive rate of T gondii IgG (OR = 24.00). Type-I BD owned a decreased positive rate of rubella IgG (OR = 0.37) and an elevated positive rate of CMV IgG (OR = 2.12) compared to type-II BD, while BD with early onset showed contrast results compared to BD without early onset (Rubella IgG, OR = 2.54; CMV IgG, OR = 0.26). BD with psychotic symptom history displayed a lower positive rate of rubella IgG (OR = 0.50). LIMITATIONS Absence of male evidence and control of socioeconomic status and environmental exposure. CONCLUSIONS Differential antibody seropositive rates of T gondii, rubella, and cytomegalovirus in BD were observed.
Collapse
Affiliation(s)
- Xiaonan Guo
- Department of Psychiatry, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China.
| | - Yiqing Chen
- Department of Psychiatry, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China.
| | - Huimin Huang
- Department of Psychiatry, The Third Affiliated Hospital of Wenzhou Medical University, 325800, Wenzhou, Zhejiang, China.
| | - Yifeng Liu
- Key Laboratory of Reproductive Genetics (Ministry of Education) and Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China.
| | - Lingzhuo Kong
- Department of Psychiatry, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China.
| | - Lizichen Chen
- Department of Psychiatry, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China.
| | - Hailong Lyu
- Department of Psychiatry, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China.
| | | | - Jianbo Lai
- Department of Psychiatry, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; Zhejiang Key Laboratory of Precision Psychiatry, Hangzhou 310003, China; Brain Research Institute of Zhejiang University, Hangzhou 310058, China; Zhejiang Engineering Center for Mathematical Mental Health, Hangzhou 310003, China; MOE Frontier Science Center for Brain Science and Brain-machine Integration, Zhejiang University School of Medicine, Hangzhou 310058, China.
| | - Dan Zhang
- Key Laboratory of Reproductive Genetics (Ministry of Education) and Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China.
| | - Shaohua Hu
- Department of Psychiatry, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; Zhejiang Key Laboratory of Precision Psychiatry, Hangzhou 310003, China; Brain Research Institute of Zhejiang University, Hangzhou 310058, China; Zhejiang Engineering Center for Mathematical Mental Health, Hangzhou 310003, China; MOE Frontier Science Center for Brain Science and Brain-machine Integration, Zhejiang University School of Medicine, Hangzhou 310058, China; Department of Psychology and Behavioral Sciences, Graduate School, Zhejiang University, Hangzhou 310058, China; Nanhu Brain-computer Interface Institute, Hangzhou 311100, China.
| |
Collapse
|
2
|
Kong L, Chen Y, Shen Y, Zhang D, Wei C, Lai J, Hu S. Progress and Implications from Genetic Studies of Bipolar Disorder. Neurosci Bull 2024:10.1007/s12264-023-01169-9. [PMID: 38206551 DOI: 10.1007/s12264-023-01169-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Accepted: 10/05/2023] [Indexed: 01/12/2024] Open
Abstract
With the advancements in gene sequencing technologies, including genome-wide association studies, polygenetic risk scores, and high-throughput sequencing, there has been a tremendous advantage in mapping a detailed blueprint for the genetic model of bipolar disorder (BD). To date, intriguing genetic clues have been identified to explain the development of BD, as well as the genetic association that might be applied for the development of susceptibility prediction and pharmacogenetic intervention. Risk genes of BD, such as CACNA1C, ANK3, TRANK1, and CLOCK, have been found to be involved in various pathophysiological processes correlated with BD. Although the specific roles of these genes have yet to be determined, genetic research on BD will help improve the prevention, therapeutics, and prognosis in clinical practice. The latest preclinical and clinical studies, and reviews of the genetics of BD, are analyzed in this review, aiming to summarize the progress in this intriguing field and to provide perspectives for individualized, precise, and effective clinical practice.
Collapse
Affiliation(s)
- Lingzhuo Kong
- Department of Psychiatry, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Yiqing Chen
- Department of Psychiatry, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Yuting Shen
- Department of Psychiatry, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Danhua Zhang
- Department of Psychiatry, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Chen Wei
- Department of Psychiatry, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Jianbo Lai
- Department of Psychiatry, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.
- The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, 310003, China.
- Brain Research Institute of Zhejiang University, Hangzhou, 310003, China.
- Zhejiang Engineering Center for Mathematical Mental Health, Hangzhou, 310003, China.
- Department of Neurobiology, NHC and CAMS Key Laboratory of Medical Neurobiology, School of Brain Science and Brian Medicine, and MOE Frontier Science Center for Brain Science and Brain-machine Integration, Zhejiang University School of Medicine, Hangzhou, 310003, China.
| | - Shaohua Hu
- Department of Psychiatry, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.
- The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, 310003, China.
- Brain Research Institute of Zhejiang University, Hangzhou, 310003, China.
- Zhejiang Engineering Center for Mathematical Mental Health, Hangzhou, 310003, China.
- Department of Neurobiology, NHC and CAMS Key Laboratory of Medical Neurobiology, School of Brain Science and Brian Medicine, and MOE Frontier Science Center for Brain Science and Brain-machine Integration, Zhejiang University School of Medicine, Hangzhou, 310003, China.
| |
Collapse
|
3
|
Restrepo-Mejía SF, Valencia-Echeverry J, Zapata-Ospina JP, Aguirre-Acevedo DC, Lopez-Jaramillo C, Palacio-Ortiz JD. Comparison of the neurocognitive profile of the children of parents with bipolar disorder and controls: A transnational cross-sectional study. REVISTA COLOMBIANA DE PSIQUIATRIA (ENGLISH ED.) 2023; 52:320-327. [PMID: 37981470 DOI: 10.1016/j.rcpeng.2021.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 07/13/2021] [Indexed: 11/21/2023]
Abstract
INTRODUCTION Studies that have compared the cognitive alterations of the children of parents with bipolar disorder (CPBD) versus the children of control parents (CCP), present heterogeneous results due to the studies' methodological differences, the age of the population studied, and the lack of standardisation of the measures used for the different neurocognitive domains. The objective was to compare the neurocognitive profile of CPBD versus CCP to observe if there are differences that could be proposed as possible endophenotypes of BD. RESULTS A total of 107 individuals (51 CPBD, and 56 CCP) with ages between 6 and 16 (mean, 12.2±2.80) years of age were evaluated. Seventy-four point five percent of the CPBD group had some disorder compared to 67.9% of the CCP group. Tests such as letter-F phonemic verbal fluency, letter-S phonemic verbal fluency, overall F-A-S phonemic verbal fluency, story recall and retrieval, and Wisconsin perseverative errors showed a difference with a small effect size, but with a high degree of uncertainty. CONCLUSIONS The CPBD did not have differences in their neurocognitive profile in comparison with CCP. Both groups have a high prevalence of psychopathology, which is a factor that could explain the lack of differences in neurocognitive performance.
Collapse
Affiliation(s)
- Sara Fernanda Restrepo-Mejía
- Grupo de Investigación en Psiquiatría (GIPSI), Departamento de Psiquiatría, Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia
| | - Johanna Valencia-Echeverry
- Grupo de Investigación en Psiquiatría (GIPSI), Departamento de Psiquiatría, Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia
| | | | | | - Carlos Lopez-Jaramillo
- Grupo de Investigación en Psiquiatría (GIPSI), Departamento de Psiquiatría, Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia
| | - Juan David Palacio-Ortiz
- Grupo de Investigación en Psiquiatría (GIPSI), Departamento de Psiquiatría, Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia.
| |
Collapse
|
4
|
Nasir Hashmi A, Sabina Raja M, Taj R, Ahmed Dharejo R, Agha Z, Qamar R, Azam M. Association of 11 variants of the dopaminergic and cognitive pathways genes with major depression, schizophrenia and bipolar disorder in the Pakistani population. Int J Neurosci 2023:1-13. [PMID: 37642370 DOI: 10.1080/00207454.2023.2251661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 07/20/2023] [Accepted: 08/19/2023] [Indexed: 08/31/2023]
Abstract
Background: The dopaminergic pathways control neural signals that modulate mood and behaviour along and have a vital role in the aetiology of major depression (MDD), schizophrenia (SHZ) and bipolar disorder (BD). Genome-wide association studies (GWAS) have reported several dopaminergic and cognitive pathway genes association with these disorders however, no such comprehensive data was available regarding the Pakistani population.Objective: The present study was conducted to analyse the 11 genetic variants of dopaminergic and cognitive system genes in MDD, SHZ, and BD in the Pakistani population.Methods: A total of 1237 subjects [MDD n = 479; BD n = 222; SHZ n = 146; and controls n = 390], were screened for 11 genetic variants through polymerase chain reaction (PCR) techniques. Univariant followed by multivariant logistic regression analysis was applied to determine the genetic association.Results: Significant risk associations were observed for rs4532 and rs1799732 with MDD; and rs1006737 and rs2238056 with BD. However, after applying multiple test corrections rs4532 and rs1799732 association did not remain significant for MDD. Moreover, a protective association was found for three variants; DRD4-120bp, rs10033951 and rs2388334 in the current cohort.Conclusions: The present study revealed the risk association of single nucleotide polymorphisms (SNPs) rs1006737 and rs2238056 with BD and the protective effect of the DRD4-120bp variant in MDD and BD, of rs2388334 in BD and of rs10033951 in MDD, BD, and SHZ in the current Pakistani cohort. Thus, the study is valuable in understanding the genetic basis of MDD, BD and SHZ in the Pakistani population, which may pave the way for future functional studies.
Collapse
Affiliation(s)
- Aisha Nasir Hashmi
- Translational Genomics Laboratory, COMSATS University Islamabad, Islamabad, Pakistan
| | - Merlyn Sabina Raja
- Translational Genomics Laboratory, COMSATS University Islamabad, Islamabad, Pakistan
| | - Rizwan Taj
- Department of Psychiatry, Pakistan Institute of Medical Sciences, Islamabad, Pakistan
| | - Raees Ahmed Dharejo
- Department of Psychiatry, Pakistan Institute of Medical Sciences, Islamabad, Pakistan
| | - Zehra Agha
- Translational Genomics Laboratory, COMSATS University Islamabad, Islamabad, Pakistan
| | - Raheel Qamar
- Science and Technology Sector, ICESCO, Rabat, Morocco
- Pakistan Academy of Science, Islamabad, Pakistan
| | - Maleeha Azam
- Translational Genomics Laboratory, COMSATS University Islamabad, Islamabad, Pakistan
| |
Collapse
|
5
|
Jiménez-Fernández S, Gurpegui M, Garrote-Rojas D, Gutiérrez-Rojas L, Carretero MD, Correll CU. Oxidative stress parameters and antioxidants in adults with unipolar or bipolar depression versus healthy controls: Systematic review and meta-analysis. J Affect Disord 2022; 314:211-221. [PMID: 35868596 DOI: 10.1016/j.jad.2022.07.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 07/06/2022] [Accepted: 07/09/2022] [Indexed: 12/30/2022]
Abstract
BACKGROUND To study differences in oxidative stress markers and antioxidants among patients with bipolar depression (BPD) and unipolar depression (UPD). METHODS Data sources. Electronic MEDLINE/PubMed/Cochrane Library/Scopus/TripDatabase database search until 30/06/2021. STUDY SELECTION Included were articles comparing antioxidant or oxidative stress markers between adults with BPD or UPD and healthy controls (HCs). DATA EXTRACTION Two authors extracted data independently. Random effects meta-analysis, calculating standardized mean differences for results from ≥3 studies. RESULTS Oxidative stress markers reported in 40 studies -1 published repeatedly- (UPD, studies = 30 n = 3072; their HCs, n = 2856; BPD, studies = 11 n = 393; their HCs, n = 540; with 1 study reporting on both UPD and BPD) included thiobarbituric acid reactive substances (TBARS), antioxidant uric acid and antioxidant-enhancing enzymes superoxide dismutase (SOD), catalase (CAT) and glutathione-peroxidase (GPX). Compared with HCs, UPD and BPD were associated with significantly higher levels of TBARS, without differences between UPD and BPD (P = 0.11). Compared with HCs, UPD and BPD did not differ regarding the activity of the CAT (P = 0.28), SOD (P = 0.87) and GPX (P = 0.25) enzymes. However, uric acid levels were significantly higher vs HCs in BPD than in UPD among adult patients (P = 0.004). Results were heterogenous, which, for some parameters, decreased after stratification by the blood source (serum, plasma red blood cells, whole blood). LIMITATIONS The main limitations are the small number of studies/participants in the BPD subgroup, and heterogeneity of the results. SUMMATIONS Both BPD and UPD may be associated with an impaired oxidative stress balance, with significantly higher uric acid levels vs. HCs in UPD than in BPD.
Collapse
Affiliation(s)
- Sara Jiménez-Fernández
- Department of Psychiatry and CTS-549 Research Group, Institute of Neurosciences, University of Granada, Granada, Spain; Child and Adolescent Mental Health Unit, Jaén University Hospital, Jaén, Spain.
| | - Manuel Gurpegui
- Department of Psychiatry and CTS-549 Research Group, Institute of Neurosciences, University of Granada, Granada, Spain
| | | | - Luis Gutiérrez-Rojas
- Department of Psychiatry and CTS-549 Research Group, Institute of Neurosciences, University of Granada, Granada, Spain; Psychiatry Service, San Cecilio University Hospital, Granada, Spain
| | - María D Carretero
- Department of Psychiatry and CTS-549 Research Group, Institute of Neurosciences, University of Granada, Granada, Spain
| | - Christoph U Correll
- Department of Psychiatry Research, Zucker Hillside Hospital, Northwell Health, Glen Oaks, NY, USA; Department of Psychiatry and Molecular Medicine, Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA; Center for Psychiatric Neuroscience, Feinstein Institute for Medical Research, Manhasset, NY, USA; Department of Child and Adolescent Psychiatry, Charité Universitätsmedizin Berlin, Berlin, Germany
| |
Collapse
|
6
|
Li X, Ma S, Yan W, Wu Y, Kong H, Zhang M, Luo X, Xia J. dbBIP: a comprehensive bipolar disorder database for genetic research. Database (Oxford) 2022; 2022:6627538. [PMID: 35779245 PMCID: PMC9250320 DOI: 10.1093/database/baac049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 05/28/2022] [Accepted: 06/11/2022] [Indexed: 11/17/2022]
Abstract
Bipolar disorder (BIP) is one of the most common hereditary psychiatric disorders worldwide. Elucidating the genetic basis of BIP will play a pivotal role in mechanistic delineation. Genome-wide association studies (GWAS) have successfully reported multiple susceptibility loci conferring BIP risk, thus providing insight into the effects of its underlying pathobiology. However, difficulties remain in the extrication of important and biologically relevant data from genetic discoveries related to psychiatric disorders such as BIP. There is an urgent need for an integrated and comprehensive online database with unified access to genetic and multi-omics data for in-depth data mining. Here, we developed the dbBIP, a database for BIP genetic research based on published data. The dbBIP consists of several modules, i.e.: (i) single nucleotide polymorphism (SNP) module, containing large-scale GWAS genetic summary statistics and functional annotation information relevant to risk variants; (ii) gene module, containing BIP-related candidate risk genes from various sources and (iii) analysis module, providing a simple and user-friendly interface to analyze one’s own data. We also conducted extensive analyses, including functional SNP annotation, integration (including summary-data-based Mendelian randomization and transcriptome-wide association studies), co-expression, gene expression, tissue expression, protein–protein interaction and brain expression quantitative trait loci analyses, thus shedding light on the genetic causes of BIP. Finally, we developed a graphical browser with powerful search tools to facilitate data navigation and access. The dbBIP provides a comprehensive resource for BIP genetic research as well as an integrated analysis platform for researchers and can be accessed online at http://dbbip.xialab.info. Database URL: http://dbbip.xialab.info
Collapse
Affiliation(s)
- Xiaoyan Li
- Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education and Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University , 111 Jiulong Road, Shushan District, Hefei, Anhui 230601, China
| | - Shunshuai Ma
- Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education and Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University , 111 Jiulong Road, Shushan District, Hefei, Anhui 230601, China
| | - Wenhui Yan
- Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education and Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University , 111 Jiulong Road, Shushan District, Hefei, Anhui 230601, China
| | - Yong Wu
- Affiliated Wuhan Mental Health Center, Tongji Medical College, Huazhong University of Science and Technology , 93 Youyi Road, Qiaokou District, Wuhan, Hubei 430030, China
| | - Hui Kong
- Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education and Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University , 111 Jiulong Road, Shushan District, Hefei, Anhui 230601, China
| | - Mingshan Zhang
- Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education and Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University , 111 Jiulong Road, Shushan District, Hefei, Anhui 230601, China
| | - Xiongjian Luo
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences , 32 Jiaochang East Road, Wuhua District, Kunming, Yunnan 650223, China
- Kunming College of Life Science, University of Chinese Academy of Sciences , 19 Qingsong Road, Panlong District, Kunming, Yunnan 650204, China
| | - Junfeng Xia
- Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education and Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University , 111 Jiulong Road, Shushan District, Hefei, Anhui 230601, China
| |
Collapse
|
7
|
Restrepo-Mejía SF, Valencia-Echeverry J, Zapata-Ospina JP, Aguirre-Acevedo DC, Lopez-Jaramillo C, Palacio-Ortiz JD. Comparison of the Neurocognitive Profile of the Children of Parents with Bipolar Disorder and Controls: a Transnational Cross-Sectional Study. REVISTA COLOMBIANA DE PSIQUIATRIA (ENGLISH ED.) 2021; 52:S0034-7450(21)00139-6. [PMID: 34561104 DOI: 10.1016/j.rcp.2021.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 07/13/2021] [Indexed: 06/13/2023]
Abstract
INTRODUCTION Studies that have compared the cognitive alterations of the children of parents with bipolar disorder (CPBD) versus the children of control parents (CCP), present heterogeneous results due to the studies' methodological differences, the age of the population studied, and the lack of standardisation of the measures used for the different neurocognitive domains. The objective was to compare the neurocognitive profile of CPBD versus CCP to observe if there are differences that could be proposed as possible endophenotypes of BD. RESULTS A total of 107 individuals (51 CPBD, and 56 CCP) with ages between 6 and 16 (mean, 12.2±2.80) years of age were evaluated. Seventy-four point five percent of the CPBD group had some disorder compared to 67.9% of the CCP group. Tests such as letter-F phonemic verbal fluency, letter-S phonemic verbal fluency, overall F-A-S phonemic verbal fluency, story recall and retrieval, and Wisconsin perseverative errors showed a difference with a small effect size, but with a high degree of uncertainty. CONCLUSIONS The CPBD did not have differences in their neurocognitive profile in comparison with CCP. Both groups have a high prevalence of psychopathology, which is a factor that could explain the lack of differences in neurocognitive performance.
Collapse
Affiliation(s)
- Sara Fernanda Restrepo-Mejía
- Grupo de Investigación en Psiquiatría (GIPSI), Departamento de Psiquiatría, Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia
| | - Johanna Valencia-Echeverry
- Grupo de Investigación en Psiquiatría (GIPSI), Departamento de Psiquiatría, Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia
| | | | | | - Carlos Lopez-Jaramillo
- Grupo de Investigación en Psiquiatría (GIPSI), Departamento de Psiquiatría, Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia
| | - Juan David Palacio-Ortiz
- Grupo de Investigación en Psiquiatría (GIPSI), Departamento de Psiquiatría, Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia.
| |
Collapse
|
8
|
The "missing heritability"-Problem in psychiatry: Is the interaction of genetics, epigenetics and transposable elements a potential solution? Neurosci Biobehav Rev 2021; 126:23-42. [PMID: 33757815 DOI: 10.1016/j.neubiorev.2021.03.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 03/15/2021] [Accepted: 03/17/2021] [Indexed: 02/07/2023]
Abstract
Psychiatric disorders exhibit an enormous burden on the health care systems worldwide accounting for around one-third of years lost due to disability among adults. Their etiology is largely unknown and diagnostic classification is based on symptomatology and course of illness and not on objective biomarkers. Most psychiatric disorders are moderately to highly heritable. However, it is still unknown what mechanisms may explain the discrepancy between heritability estimates and the present data from genetic analysis. In addition to genetic differences also epigenetic modifications are considered as potentially relevant in the transfer of susceptibility to psychiatric diseases. Though, whether or not epigenetic alterations can be inherited for many generations is highly controversial. In the present article, we will critically summarize both the genetic findings and the results from epigenetic analyses, including also those of noncoding RNAs. We will argue that one possible solution to the "missing heritability" problem in psychiatry is a potential role of retrotransposons, the exploration of which is presently only in its beginnings.
Collapse
|
9
|
Charney AW, Mullins N, Park YJ, Xu J. On the diagnostic and neurobiological origins of bipolar disorder. Transl Psychiatry 2020; 10:118. [PMID: 32327632 PMCID: PMC7181677 DOI: 10.1038/s41398-020-0796-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 03/11/2020] [Accepted: 04/01/2020] [Indexed: 11/22/2022] Open
Abstract
Psychiatry is constructed around a taxonomy of several hundred diagnoses differentiated by nuances in the timing, co-occurrence, and severity of symptoms. Bipolar disorder (BD) is notable among these diagnoses for manic, depressive, and psychotic symptoms all being core features. Here, we trace current understanding of the neurobiological origins of BD and related diagnoses. To provide context, we begin by exploring the historical origins of psychiatric taxonomy. We then illustrate how key discoveries in pharmacology and neuroscience gave rise to a generation of neurobiological hypotheses about the origins of these disorders that facilitated therapeutic innovation but failed to explain disease pathogenesis. Lastly, we examine the extent to which genetics has succeeded in filling this void and contributing to the construction of an objective classification of psychiatric disturbance.
Collapse
Affiliation(s)
- Alexander W Charney
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY, 10029, USA.
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY, 10029, USA.
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY, 10029, USA.
- Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY, 10029, USA.
- Mental Illness Research, Education, and Clinical Center (VISN 2 South), James J. Peters Veterans Affairs Medical Center, Bronx, NY, 10468, USA.
| | - Niamh Mullins
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY, 10029, USA
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY, 10029, USA
| | - You Jeong Park
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY, 10029, USA
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY, 10029, USA
| | - Jonathan Xu
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY, 10029, USA
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY, 10029, USA
| |
Collapse
|
10
|
Cuellar-Barboza AB, Winham SJ, Biernacka JM, Frye MA, McElroy SL. Clinical phenotype and genetic risk factors for bipolar disorder with binge eating: an update. Expert Rev Neurother 2019; 19:867-879. [PMID: 31269819 DOI: 10.1080/14737175.2019.1638764] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Introduction: Clinical and genetic study of psychiatric conditions has underscored the co-occurrence of complex phenotypes and the need to refine them. Bipolar Disorder (BD) and Binge Eating (BE) behavior are common psychiatric conditions that have high heritability and high co-occurrence, such that at least one quarter of BD patients have BE (BD + BE). Genetic studies of BD alone and of BE alone suggest complex polygenic risk models, with many genetic risk loci yet to be identified. Areas covered: We review studies of the epidemiology of BD+BE, its clinical features (cognitive traits, psychiatric comorbidity, and role of obesity), genomic studies (of BD, eating disorders (ED) defined by BE, and BD + BE), and therapeutic implications of BD + BE. Expert opinion: Subphenotyping of complex psychiatric disorders reduces heterogeneity and increases statistical power and effect size; thus, it enhances our capacity to find missing genetic (and other) risk factors. BD + BE has a severe clinical picture and genetic studies suggests a distinct genetic architecture. Differential therapeutic interventions may be needed for patients with BD + BE compared with BD patients without BE. Recognizing the BD + BE subphenotype is an example of moving towards more precise clinical and genetic entities.
Collapse
Affiliation(s)
- Alfredo B Cuellar-Barboza
- Universidad Autonoma de Nuevo Leon, Department of Psychiatry, School of Medicine , Monterrey , NL , Mexico.,Department of Psychiatry and Psychology, Mayo Clinic , Rochester , MN , USA
| | - Stacey J Winham
- Department of Psychiatry and Psychology, Mayo Clinic , Rochester , MN , USA.,Department of Health Sciences Research, Mayo Clinic , Rochester , MN , USA
| | - Joanna M Biernacka
- Department of Psychiatry and Psychology, Mayo Clinic , Rochester , MN , USA.,Department of Health Sciences Research, Mayo Clinic , Rochester , MN , USA
| | - Mark A Frye
- Department of Psychiatry and Psychology, Mayo Clinic , Rochester , MN , USA.,Department of Health Sciences Research, Mayo Clinic , Rochester , MN , USA
| | - Susan L McElroy
- Lindner Center of HOPE , Mason , OH , USA.,Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati , Cincinnati , OH , USA
| |
Collapse
|
11
|
Rao S, Han X, Shi M, Siu CO, Waye MMY, Liu G, Wing YK. Associations of the serotonin transporter promoter polymorphism (5-HTTLPR) with bipolar disorder and treatment response: A systematic review and meta-analysis. Prog Neuropsychopharmacol Biol Psychiatry 2019; 89:214-226. [PMID: 30217771 DOI: 10.1016/j.pnpbp.2018.08.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 08/30/2018] [Accepted: 08/31/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND Associations of the serotonin transporter promoter polymorphism (5-HTTLPR) with bipolar disorder (BPD) and treatment response in bipolar patients were not conclusive. This study not only assessed the association between the 5-HTTLPR and BPD with accumulating relevant studies, but also in the first time evaluated the effect of the 5-HTTLPR on both anti-depressive and anti-manic treatment responses in bipolar patients. METHODS PubMed, Embase, PsycINFO, Cochrane Library and Cochrane Control Trials databases were systematically searched before February 2017. This meta-analysis followed the PRISMA guidelines. RESULTS A total of 32 population-based studies (5567 cases and 6993 controls) and 9 family-based studies (837 trios) were finally screened out and statistically joined into a single meta-analysis that revealed an association between S allele and an increased risk of BPD (OR = 1.06, p = .038). Pooled analysis of the 32 population-based studies indicated an association of S-carrier genotypes with an increased risk of BPD (OR = 1.10, p = .029). Meanwhile, the association remained significant in Caucasians (OR = 1.15, p = .004), which could provide an enough power (88%) to detect a significant association. Regarding the treatment response studies, 6 studies reporting the relationship of the 5-HTTLPR in anti-depressive remission rate (1034 patients) and 7 studies reporting in response rate (1098 patients) were included for pooled analyses. We observed a significant association of S-carrier genotypes with a reduced anti-depressive remission rate (OR = 0.64, p = .006) but not with anti-depressive response rate. The association between the 5-HTTLPR with anti-manic response rate was not observed in the included 6 studies (676 patients). CONCLUSIONS The present study supported the presence of a marginal but detectable effect of the 5-HTTLPR on susceptibility to BPD. Moreover, the detected association in Caucasian was statistically reliable. Besides, the 5-HTTLPR was identified as a useful predictor for anti-depressive remission but not for anti-depressive or anti-manic response.
Collapse
Affiliation(s)
- Shitao Rao
- Department of Psychiatry, Faculty of Medicine, The Chinese University of Hong Kong, N.T., Hong Kong, SAR, China; The Nethersole School of Nursing, Faculty of Medicine, The Chinese University of Hong Kong, N.T., Hong Kong, SAR, China
| | - Xinyu Han
- The Nethersole School of Nursing, Faculty of Medicine, The Chinese University of Hong Kong, N.T., Hong Kong, SAR, China; College of Food and Biological Engineering, Jimei University, Xiamen, Fujian, China
| | - Mai Shi
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, N.T., Hong Kong, SAR, China
| | - Cynthia O Siu
- COS & Associates Ltd., Central District, Hong Kong, SAR, China
| | - Mary Miu Yee Waye
- The Nethersole School of Nursing, Faculty of Medicine, The Chinese University of Hong Kong, N.T., Hong Kong, SAR, China
| | - Guangming Liu
- College of Food and Biological Engineering, Jimei University, Xiamen, Fujian, China.
| | - Yun Kwok Wing
- Department of Psychiatry, Faculty of Medicine, The Chinese University of Hong Kong, N.T., Hong Kong, SAR, China.
| |
Collapse
|
12
|
Abstract
After more than 10 years of accumulated efforts, genome-wide association studies (GWAS) have led to many findings, most of which have been deposited into the GWAS Catalog. Between GWAS's inception and March 2017, the GWAS Catalog has collected 2429 studies, 1818 phenotypes, and 28,462 associated SNPs. We reclassified the psychology-related phenotypes into 217 reclassified phenotypes, which accounted for 514 studies and 7052 SNPs. In total, 1223 of the SNPs reached genome-wide significance. Of these, 147 were replicated for the same psychological trait in different studies. Another 305 SNPs were replicated within one original study. The SNPs rs2075650 and rs4420638 were linked to the most replications within a single reclassified phenotype or very similar reclassified phenotypes; both were associated with Alzheimer's disease (AD). Schizophrenia was associated with 74 within-phenotype SNPs reported in independents studies. Alzheimer's disease and schizophrenia were both linked to some physical phenotypes, including cholesterol and body mass index, through common GWAS signals. Alzheimer's disease also shared risk SNPs with age-related phenotypes such as age-related macular degeneration and longevity. Smoking-related SNPs were linked to lung cancer and respiratory function. Alcohol-related SNPs were associated with cardiovascular and digestive system phenotypes and disorders. Two separate studies also identified a shared risk SNP for bipolar disorder and educational attainment. This review revealed a list of reproducible SNPs worthy of future functional investigation. Additionally, by identifying SNPs associated with multiple phenotypes, we illustrated the importance of studying the relationships among phenotypes to resolve the nature of their causal links. The insights within this review will hopefully pave the way for future evidence-based genetic studies.
Collapse
|
13
|
Identification of rare nonsynonymous variants in SYNE1/CPG2 in bipolar affective disorder. Psychiatr Genet 2018; 27:81-88. [PMID: 28178086 DOI: 10.1097/ypg.0000000000000166] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Bipolar affective disorder (BPD) is a severe mood disorder with a prevalence of ∼1.5% in the population. The pathogenesis of BPD is poorly understood; however, a strong heritable component has been identified. Previous genome-wide association studies have indicated a region on 6q25, coding for the SYNE1 gene, which increases disease susceptibility. SYNE1 encodes the synaptic nuclear envelope protein-1, nesprin-1. A brain-specific splice variant of SYNE1, CPG2 encoding candidate plasticity gene 2, has been identified. The intronic single-nucleotide polymorphism with the strongest genome-wide significant association in BPD, rs9371601, is present in both SYNE1 and CPG2. METHODS We screened 937 BPD samples for genetic variation in SYNE1 exons 14-33, which covers the CPG2 region, using high-resolution melt analysis. In addition, we screened two regions of increased transcriptional activity, one of them proposed to be the CPG2 promoter region. RESULTS AND CONCLUSION We identified six nonsynonymous and six synonymous variants. We genotyped three rare nonsynonymous variants, rs374866393, rs148346599 and rs200629713, in a total of 1099 BPD samples and 1056 controls. Burden analysis of these rare variants did not show a significant association with BPD. However, nine patients are compound heterozygotes for variants in SYNE1/CPG2, suggesting that rare coding variants may contribute significantly towards the complex genetic architecture underlying BPD. Imputation analysis in our own whole-genome sequencing sample of 99 BPD individuals identified an additional eight risk variants in the CPG2 region of SYNE1.
Collapse
|
14
|
Reginia A, Kucharska-Mazur J, Jabłoński M, Budkowska M, Dołȩgowska B, Sagan L, Misiak B, Ratajczak MZ, Rybakowski JK, Samochowiec J. Assessment of Complement Cascade Components in Patients With Bipolar Disorder. Front Psychiatry 2018; 9:614. [PMID: 30538645 PMCID: PMC6277457 DOI: 10.3389/fpsyt.2018.00614] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 11/01/2018] [Indexed: 12/14/2022] Open
Abstract
Introduction: The immune system is undoubtedly involved in the pathogenesis of various psychiatric disorders, such as schizophrenia, bipolar disorder, or depression. Although its role is not fully understood, it appears that this area of research can help to understand the etiology of mental illness. One of the components of the human immune system is the complement system, which forms a part of the innate immune response. Physiologically, except for its essential protective role, it is a vital element in the regeneration processes, including neurogenesis. To date, few studies have tried to clarify the role of the complement cascade in mental disorders. Materials and Methods: We evaluated concentrations of C3a, C5a, and C5b-9 complement cascade components in the peripheral blood of 30 patients suffering from bipolar disorder (BD) for at least 10 years, in euthymia, who were not treated with lithium salts. In addition, we divided our study sample into BD type I (BD-I, 22 persons), and BD type II (BD-II, 8 patients). The control group consisted of 30 healthy volunteers matched for age, sex, BMI, and smoking habits. Results: Compared to healthy controls, BD patients had elevated concentrations of all the investigated components. Furthermore, in patients with BD-II, we observed higher concentrations of C5b-9 as compared to patients with BD-I. However, there was a significant effect of BD diagnosis only on the levels of C3a and C5a but not on the level of C5b-9 after adjustment for potential confounding factors. Conclusions: Increased concentrations of components C3a and C5a of the complement system in the investigated group as compared to healthy controls suggest involvement of the complement cascade in the pathogenesis of BD, and provides further evidence of immune system dysregulation in BD patients.
Collapse
Affiliation(s)
- Artur Reginia
- Department of Psychiatry, Pomeranian Medical University, Szczecin, Poland
| | | | - Marcin Jabłoński
- Department of Psychiatry, Pomeranian Medical University, Szczecin, Poland
| | - Marta Budkowska
- Department of Medical Analytics, Pomeranian Medical University, Szczecin, Poland
| | - Barbara Dołȩgowska
- Department of Laboratory Medicine, Pomeranian Medical University, Szczecin, Poland
| | - Leszek Sagan
- Department of Neurosurgery, Pomeranian Medical University, Szczecin, Poland
| | - Błazej Misiak
- Department of Genetics, Wroclaw Medical University, Wrocław, Poland
| | - Mariusz Z Ratajczak
- Stem Cell Institute at James Graham Brown Cancer Center, University of Louisville, Louisville, KY, United States
| | - Janusz K Rybakowski
- Department of Adult Psychiatry, Poznan University of Medical Sciences, Poznan, Poland
| | - Jerzy Samochowiec
- Department of Psychiatry, Pomeranian Medical University, Szczecin, Poland
| |
Collapse
|
15
|
Hiyoshi A, Sabet JA, Sjöqvist H, Melinder C, Brummer RJ, Montgomery S. Precursors in adolescence of adult-onset bipolar disorder. J Affect Disord 2017; 218:353-358. [PMID: 28499209 DOI: 10.1016/j.jad.2017.04.071] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 04/28/2017] [Indexed: 01/23/2023]
Abstract
BACKGROUND Although the estimated contribution of genetic factors is high in bipolar disorder, environmental factors may also play a role. This Swedish register-based cohort study of men examined if physical and psychological characteristics in late adolescence, including factors previously linked with bipolar disorder (body mass index, asthma and allergy), are associated with subsequent bipolar disorder in adulthood. Unipolar depression and anxiety are analysed as additional outcomes to identify bipolar disorder-specific associations. METHODS A total of 213,693 men born between 1952 and 1956, who participated in compulsory military conscription assessments in late adolescence were followed up to 2009, excluding men with any psychiatric diagnoses at baseline. Cox regression estimated risk of bipolar disorder, depression and anxiety in adulthood associated with body mass index, asthma, allergy, muscular strength stress resilience and cognitive function in adolescence. RESULTS BMI, asthma and allergy were not associated with bipolar disorder. Higher grip strength, cognitive function and stress resilience were associated with a reduced risk of bipolar disorder and the other disease outcomes. LIMITATIONS The sample consisted only of men; even though the characteristics in adolescence pre-dated disease onset, they may have been the consequence of prodromal disease. CONCLUSIONS Associations with body mass index and asthma found by previous studies may be consequences of bipolar disorder or its treatment rather than risk factors. Inverse associations with all the outcome diagnoses for stress resilience, muscular strength and cognitive function may reflect general risks for these psychiatric disorders or intermediary factors.
Collapse
Affiliation(s)
- Ayako Hiyoshi
- Clinical Epidemiology and Biostatistics, School of Medical Sciences, Örebro University, 701 85 Örebro, Sweden.
| | - Julia A Sabet
- Nutrition Gut Brain Interactions Research Centre, School of Medical Sciences, Örebro University, Sweden
| | - Hugo Sjöqvist
- Clinical Epidemiology and Biostatistics, School of Medical Sciences, Örebro University, 701 85 Örebro, Sweden; Department of Statistics, Örebro University, Sweden
| | - Carren Melinder
- Clinical Epidemiology and Biostatistics, School of Medical Sciences, Örebro University, 701 85 Örebro, Sweden
| | - Robert J Brummer
- Nutrition Gut Brain Interactions Research Centre, School of Medical Sciences, Örebro University, Sweden
| | - Scott Montgomery
- Clinical Epidemiology and Biostatistics, School of Medical Sciences, Örebro University, 701 85 Örebro, Sweden; Clinical Epidemiology Unit, Karolinska Institutet, Stockholm, Sweden; Department of Epidemiology and Public Health, University College London, UK
| |
Collapse
|
16
|
Salehi B, Khoz S, Sadeghi B, Amanat M, Salehi M. Genealogy Study of Three Generations of Patients with Bipolar Mood Disorder Type I. Indian J Psychol Med 2017; 39:475-480. [PMID: 28852243 PMCID: PMC5559997 DOI: 10.4103/ijpsym.ijpsym_300_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
INTRODUCTION The purpose of this research is genealogy examination of three generation of bipolar mood disorder Type I patients. METHODS Patients selected using Poisson sampling method from 100 patients with bipolar mood disorder Type I, referring to a psychiatric center of Amir Kabir Hospital of Arak, Iran. Examine issues such as physical ailments, psychological review of living and deceased family members of each patient, drawn family pedigree using pedigree chart, check the relationship of the different pattern of the autosomal dominant and recessive disease, sex-linked dominant and recessive and linked to Y chromosome have been performed on patients. Different methods used in this study are pedigree chart and young mania rating scale and SPSS and Pearson's correlation test for analyzing the data collected. RESULTS Among the studied inheritance patterns, the most common inheritance pattern was autosomal recessive. There was a significant relationship between age, number of generation, and inheritance patterns with physical ailments in families of patients with bipolar mood disorder (P < 0.05), but there was no significant association with mental illness (P > 0.05). Furthermore, there was a significant relation between generation and skin, gastrointestinal, ovarian, lung, coronary heart disease, diabetes mellitus, hypertension, Cerebrovascular accident (CVA), hyperlipidemia, cardiomyopathy, hypothyroidism, and kidney disease in patients with bipolar affective disorder Type I (P < 0.05). CONCLUSION The results showed that autosomal recessive was the most pattern of inheritance and there is a significant relationship between generation and some physical disorders in patients with bipolar mood disorder Type I.
Collapse
Affiliation(s)
- Bahman Salehi
- Department of Psychiatry, Arak University of Medical Sciences, Arak, Iran
| | - Sara Khoz
- Department of Psychiatry, Arak University of Medical Sciences, Arak, Iran
| | - Bahman Sadeghi
- Department of Social Medicine, Arak University of Medical Sciences, Arak, Iran
| | - Manouchehr Amanat
- Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mona Salehi
- Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
17
|
Manchia M, Carpiniello B, Valtorta F, Comai S. Serotonin Dysfunction, Aggressive Behavior, and Mental Illness: Exploring the Link Using a Dimensional Approach. ACS Chem Neurosci 2017; 8:961-972. [PMID: 28378993 DOI: 10.1021/acschemneuro.6b00427] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Aggressive individuals have higher rates of mental illness compared to non-aggressive individuals. Multiple factors, including psychosocial, genetic, and neurobiological determinants modulate the liability to both aggressive behavior and mental illness. Concerning the latter factors, multiple lines of evidence have shown a dysfunction in the serotonin (5-HT) system occurring in aggressive and in mentally ill individuals. In particular, reduced 5-HT activity has been associated with depression as well as with aggressive behavior, especially with impulsive aggression. Consistently, psychopharmacological interventions aimed at boosting the 5-HT system (e.g., with selective serotonin reuptake inhibitors) have demonstrated therapeutic efficacy in a high percentage of patients with either or both pathological conditions. Current knowledge does not yet allow to clearly disentangle whether 5-HT dysfunction, most often a 5-HT deficiency, is the cause or the consequence of the aggressive/violent behavior, of the underlying mental disease/s, or the expression of the comorbidity. Future studies are thus needed to clarify the association between changes in 5-HT levels, altered activity of 5-HT receptors and their intracellular signaling cascades, and modifications of 5-HT genes, and in particular the neurobiological link between the altered 5-HT machinery and aggressive behavior in the context or in the absence of mental illness. In this Review, we employ a dimensional approach to discuss the trivariate relationship among the 5-HT system, aggressive behavior, and mental illness, focusing our attention on 5-HT levels, 5-HT receptors, metabolic enzymes, and their genes. Emphasis is given to controversial findings, still unanswered questions, and future perspectives.
Collapse
Affiliation(s)
- Mirko Manchia
- Section of Psychiatry,
Department of Medical Sciences and Public Health, University of Cagliari, 09121 Cagliari, Italy
- Department of Pharmacology, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Bernardo Carpiniello
- Section of Psychiatry,
Department of Medical Sciences and Public Health, University of Cagliari, 09121 Cagliari, Italy
| | - Flavia Valtorta
- San Raffaele Scientific Institute and Vita Salute University, Via Olgettina 58, 20132 Milano, Italy
| | - Stefano Comai
- San Raffaele Scientific Institute and Vita Salute University, Via Olgettina 58, 20132 Milano, Italy
| |
Collapse
|
18
|
A Dopamine Receptor genetic variant enhances perceptual speed in cognitive healthy subjects. ALZHEIMERS & DEMENTIA-TRANSLATIONAL RESEARCH & CLINICAL INTERVENTIONS 2017; 3:254-261. [PMID: 28993814 PMCID: PMC5630172 DOI: 10.1016/j.trci.2017.03.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Introduction Cognition is under strong genetic control, yet the specific genes are unknown. Methods One hundred and fifty-three cognitive healthy European subjects from the Reference Abilities Study (RANN) were genotyped for 1,160 variants within 446 neuropsychiatric genes. Adjusted linear regression models evaluated the association between the genetic variants and four reference abilities (Vocabulary, Episodic Memory, Perceptual Speed, and Reasoning). Results One hundred and fifty-nine variants nominally were found significant in the RANN cohort and re-evaluated in an independent cohort of 868 cognitive healthy subjects from the Religious Orders Study and Rush Memory Aging Project. Meta-analysis yielded a Bonferroni adjusted statistically significant association between perceptual speed and a variant located in the promoter of the dopamine receptor D4 gene, rs3756450 (β = 0.23, standard error = 0.05, Pmeta = 2.3 × 10−5). Discussion Our data suggest that genetic variation in a dopamine pathway gene influences perceptual speed performance in cognitively healthy individuals.
Collapse
|
19
|
Bouwkamp CG, Kievit AJA, Olgiati S, Breedveld GJ, Coesmans M, Bonifati V, Kushner SA. A balanced translocation disrupting BCL2L10 and PNLDC1 segregates with affective psychosis. Am J Med Genet B Neuropsychiatr Genet 2017; 174:214-219. [PMID: 27260655 PMCID: PMC5363242 DOI: 10.1002/ajmg.b.32465] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 05/20/2016] [Indexed: 01/11/2023]
Abstract
Affective psychoses are a group of severe psychiatric disorders, including schizoaffective disorder and bipolar I disorder, together affecting ∼1% of the population. Despite their high heritability, the molecular genetics and neurobiology of affective psychosis remain largely elusive. Here, we describe the identification of a structural genetic variant segregating with affective psychosis in a family with multiple members suffering from bipolar I disorder or schizoaffective disorder, bipolar type. A balanced translocation involving chromosomes 6 and 15 was detected by karyotyping and fluorescence in-situ hybridization (FISH). Using whole-genome sequencing, we rapidly delineated the translocation breakpoints as corresponding intragenic events disrupting BCL2L10 and PNLDC1. These data warrant further consideration for BCL2L10 and PNLDC1 as novel candidates for affective psychosis. © 2016 The Authors. American Journal of Medical Genetics Part B: Neuropsychiatric Genetics Published by Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Christian G. Bouwkamp
- Department of PsychiatryErasmus University Medical CenterRotterdamThe Netherlands,Department of Clinical GeneticsErasmus University Medical CenterRotterdamThe Netherlands
| | - Anneke J. A. Kievit
- Department of Clinical GeneticsErasmus University Medical CenterRotterdamThe Netherlands
| | - Simone Olgiati
- Department of Clinical GeneticsErasmus University Medical CenterRotterdamThe Netherlands
| | - Guido J. Breedveld
- Department of Clinical GeneticsErasmus University Medical CenterRotterdamThe Netherlands
| | - Michiel Coesmans
- Department of PsychiatryErasmus University Medical CenterRotterdamThe Netherlands
| | - Vincenzo Bonifati
- Department of Clinical GeneticsErasmus University Medical CenterRotterdamThe Netherlands
| | - Steven A. Kushner
- Department of PsychiatryErasmus University Medical CenterRotterdamThe Netherlands
| |
Collapse
|
20
|
McNamara RK, Jandacek R, Tso P, Blom TJ, Welge JA, Strawn JR, Adler CM, Strakowski SM, DelBello MP. Adolescents with or at ultra-high risk for bipolar disorder exhibit erythrocyte docosahexaenoic acid and eicosapentaenoic acid deficits: a candidate prodromal risk biomarker. Early Interv Psychiatry 2016; 10:203-11. [PMID: 26486098 PMCID: PMC4818707 DOI: 10.1111/eip.12282] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2015] [Accepted: 09/21/2015] [Indexed: 12/14/2022]
Abstract
AIM Mood disorders are associated with low levels of the long-chain omega-3 (LCn-3) fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). This study investigated LCn-3 fatty acid biostatus in youth with or at varying risk for developing mania to assess its utility as a prodromal risk biomarker. METHOD Erythrocyte fatty acid composition was determined in healthy adolescents (n = 28, HC), asymptomatic adolescents with a biological parent with bipolar I disorder (n = 30; 'high risk', HR), adolescents with a biological parent with bipolar I disorder and major depressive disorder, or depressive disorder not otherwise specified (n = 36; 'ultra-high risk', UHR), and first-episode adolescent bipolar manic patients (n = 35, BP). RESULTS Group differences were observed for DHA (P ≤ 0.0001) and EPA (P = 0.03). Compared with HC, erythrocyte EPA + DHA ('omega-3 index') was significantly lower in BP (-24%, P ≤ 0.0001) and UHR (-19%, P = 0.0006) groups, and there was a trend in the HR group (-11%, P = 0.06). Compared with HC (61%), a greater percentage of HR (77%, P = 0.02), UHR (80%, P = 0.005) and BP (97%, P = 0.001) subjects exhibited EPA + DHA levels of ≤4.0%. Among all subjects (n = 130), EPA + DHA was inversely correlated with manic (r = -0.29, P = 0.0008) and depressive (r = -0.28, P = 0.003) symptom severity. The AA/EPA + DHA ratio was significantly greater in BP (+22%, P = 0.0002) and UHR (+16%, P = 0.001) groups. CONCLUSIONS Low EPA + DHA levels coincide with the initial onset of mania, and increasing risk for developing bipolar disorder is associated with graded erythrocyte EPA + DHA deficits. Low erythrocyte EPA + DHA biostatus may represent a promising prodromal risk biomarker warranting additional evaluation in future prospective studies.
Collapse
Affiliation(s)
- Robert K McNamara
- Department of Psychiatry and Behavioral Neuroscience, Division of Bipolar Disorders Research, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Ronald Jandacek
- Department of Pathology, University of Cincinnati, Cincinnati, Ohio, USA
| | - Patrick Tso
- Department of Pathology, University of Cincinnati, Cincinnati, Ohio, USA
| | - Thomas J Blom
- Department of Psychiatry and Behavioral Neuroscience, Division of Bipolar Disorders Research, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Jeffrey A Welge
- Department of Psychiatry and Behavioral Neuroscience, Division of Bipolar Disorders Research, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Jeffrey R Strawn
- Department of Psychiatry and Behavioral Neuroscience, Division of Bipolar Disorders Research, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Caleb M Adler
- Department of Psychiatry and Behavioral Neuroscience, Division of Bipolar Disorders Research, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Stephen M Strakowski
- Department of Psychiatry and Behavioral Neuroscience, Division of Bipolar Disorders Research, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Melissa P DelBello
- Department of Psychiatry and Behavioral Neuroscience, Division of Bipolar Disorders Research, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| |
Collapse
|
21
|
Forero DA, Herteleer L, De Zutter S, Norrback KF, Nilsson LG, Adolfsson R, Callaerts P, Del-Favero J. A network of synaptic genes associated with schizophrenia and bipolar disorder. Schizophr Res 2016; 172:68-74. [PMID: 26899345 DOI: 10.1016/j.schres.2016.02.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 02/04/2016] [Accepted: 02/05/2016] [Indexed: 11/16/2022]
Abstract
Identification of novel candidate genes for schizophrenia (SZ) and bipolar disorder (BP), two psychiatric disorders with large epidemiological impacts, is a key research area in neurosciences and psychiatric genetics. Previous evidence from genome-wide studies suggests an important role for genes involved in synaptic plasticity in the risk for SZ and BP. We used a convergent genomics approach, combining different lines of biological evidence, to identify genes involved in the cAMP/PKA/CREB functional pathway that could be novel candidates for BP and SZ: CREB1, CREM, GRIN2C, NPY2R, NF1, PPP3CB and PRKAR1A. These 7 genes were analyzed in a HapMap based association study comprising 48 common SNPs in 486 SZ, 351 BP patients and 514 control individuals recruited from an isolated population in Northern Sweden. Genetic analysis showed significant allelic associations of SNPs in PRKAR1A with SZ and of PPP3CB and PRKAR1A with BP. Our results highlight the feasibility and the importance of convergent genomic data analysis for the identification of candidate genes and our data provide support for the role of common inherited variants in synaptic genes and their involvement in the etiology of BP and SZ.
Collapse
Affiliation(s)
- Diego A Forero
- Applied Molecular Genomics Unit, Department of Molecular Genetics, VIB, Belgium; University of Antwerp, Antwerp, Belgium; Laboratory of Behavioral and Developmental Genetics, VIB, Belgium; Catholic University of Leuven, Leuven, Belgium; Laboratory of NeuroPsychiatric Genetics, School of Medicine, Universidad Antonio Nariño, Bogotá, Colombia
| | - Liesbet Herteleer
- Laboratory of Behavioral and Developmental Genetics, VIB, Belgium; Catholic University of Leuven, Leuven, Belgium
| | - Sonia De Zutter
- Applied Molecular Genomics Unit, Department of Molecular Genetics, VIB, Belgium; University of Antwerp, Antwerp, Belgium
| | - Karl-Fredrik Norrback
- Department of Clinical Sciences, Division of Psychiatry, University of Umeå, Umeå, Sweden; Sunderby Hospital, Sweden
| | | | - Rolf Adolfsson
- Department of Clinical Sciences, Division of Psychiatry, University of Umeå, Umeå, Sweden; Sunderby Hospital, Sweden
| | - Patrick Callaerts
- Laboratory of Behavioral and Developmental Genetics, VIB, Belgium; Catholic University of Leuven, Leuven, Belgium.
| | - Jurgen Del-Favero
- Applied Molecular Genomics Unit, Department of Molecular Genetics, VIB, Belgium; University of Antwerp, Antwerp, Belgium.
| |
Collapse
|
22
|
Evans PD, Mueller KL, Gamazon ER, Cox NJ, Tomblin JB. A genome-wide sib-pair scan for quantitative language traits reveals linkage to chromosomes 10 and 13. GENES BRAIN AND BEHAVIOR 2016; 14:387-97. [PMID: 25997078 DOI: 10.1111/gbb.12223] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 05/06/2015] [Accepted: 05/06/2015] [Indexed: 02/03/2023]
Abstract
Although there is considerable evidence that individual differences in language development are highly heritable, there have been few genome-wide scans to locate genes associated with the trait. Previous analyses of language impairment have yielded replicable evidence for linkage to regions on chromosomes 16q, 19q, 13q (within lab) and at 13q (between labs). Here we report the first linkage study to screen the continuum of language ability, from normal to disordered, as found in the general population. 383 children from 147 sib-ships (214 sib-pairs) were genotyped on the Illumina(®) Linkage IVb Marker Panel using three composite language-related phenotypes and a measure of phonological memory (PM). Two regions (10q23.33; 13q33.3) yielded genome-wide significant peaks for linkage with PM. A peak suggestive of linkage was also found at 17q12 for the overall language composite. This study presents two novel genetic loci for the study of language development and disorders, but fails to replicate findings by previous groups. Possible reasons for this are discussed.
Collapse
Affiliation(s)
- P D Evans
- Department of Medicine, The University of Chicago, IL, USA
| | - K L Mueller
- Murdoch Childrens Research Institute, Melbourne, Australia.,Department of Communication Sciences and Disorders, The University of Iowa, IA, USA
| | - E R Gamazon
- Department of Medicine, The University of Chicago, IL, USA.,Present address: Division of Genetic Medicine, Department of Medicine, Vanderbilt University, Nashville, TN, USA
| | - N J Cox
- Department of Medicine, The University of Chicago, IL, USA.,Department of Communication Sciences and Disorders, The University of Iowa, IA, USA.,Present address: Division of Genetic Medicine, Department of Medicine, Vanderbilt University, Nashville, TN, USA
| | - J B Tomblin
- Department of Communication Sciences and Disorders, The University of Iowa, IA, USA
| |
Collapse
|
23
|
Ghadiri M, Nourmohammadi I, Fasihi Ramandi M, Moazen Zadeh E. Association involving serotonin transporter gene linked polymorphic region and bipolar disorder type 1 in Iranian population. Asia Pac Psychiatry 2016; 8:92-7. [PMID: 25808404 DOI: 10.1111/appy.12179] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Accepted: 02/03/2015] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Serotonin transporter gene linked polymorphic region, also called 5HTTLPR, is a candidate in the genetics of bipolar disorder; however, the results of previous association studies are inconsistent. Several explanations have been proposed for that inconsistency; among them are the existing differences both in the genetic basis of bipolar disorder subtypes and the genetic backgrounds of the studied populations. We aimed to investigate the association of 5HTTLPR with bipolar disorder type I (BP-1) in Iranian population. METHODS In this case-control study, 146 patients with BP-1 and 165 controls were recruited. The patients were selected through the Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders, 4th edition. It was required that the patients do not have any present history of general medical conditions, substance abuse, and concurrent major psychiatric disorders. The polymorphism was evaluated by blood sampling and subsequent DNA extraction, polymerase chain reaction, and agarose gel electrophoresis. Chi-square test was used for analyzing allelic and genotype frequencies and two-tailed P values were obtained. RESULTS The S allele was significantly more frequent in the BP-1 patients compared with the controls (P = 0.02, S allele odds ratio = 1.5, confidence interval 95% = 1.06-2.11). DISCUSSION Our statistically significant results suggest that the role of 5HTTLPR in the pathogenesis of BP-1 needs to be clarified by further scrutiny in Iranian population and other populations of Near East.
Collapse
Affiliation(s)
- Mohammad Ghadiri
- Iran Psychiatric Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Issa Nourmohammadi
- Department of Biochemistry, Iran University of Medical Sciences, Tehran, Iran
| | - Mahdi Fasihi Ramandi
- Research Center of Molecular Biology, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Ehsan Moazen Zadeh
- Mental Health Research Center, Tehran Psychiatric Institute, Iran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
24
|
A review of genetic alterations in the serotonin pathway and their correlation with psychotic diseases and response to atypical antipsychotics. Schizophr Res 2016; 170:18-29. [PMID: 26644303 DOI: 10.1016/j.schres.2015.11.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 10/30/2015] [Accepted: 11/02/2015] [Indexed: 02/06/2023]
Abstract
Serotonin is a neurotransmitter that plays a predominant role in mood regulation. The importance of the serotonin pathway in controlling behavior and mental status is well recognized. All the serotonin elements - serotonin receptors, serotonin transporter, tryptophan hydroxylase and monoamine oxidase proteins - can show alterations in terms of mRNA or protein levels and protein sequence, in schizophrenia and bipolar disorder. Additionally, when examining the genes sequences of all serotonin elements, several single nucleotide polymorphisms (SNPs) have been found to be more prevalent in schizophrenic or bipolar patients than in healthy individuals. Several of these alterations have been associated either with different phenotypes between patients and healthy individuals or with the response of psychiatric patients to the treatment with atypical antipsychotics. The complex pattern of genetic diversity within the serotonin pathway hampers efforts to identify the key variations contributing to an individual's susceptibility to the disease. In this review article, we summarize all genetic alterations found across the serotonin pathway, we provide information on whether and how they affect schizophrenia or bipolar disorder phenotypes, and, on the contribution of familial relationships on their detection frequencies. Furthermore, we provide evidence on whether and how specific gene polymorphisms affect the outcome of schizophrenic or bipolar patients of different ethnic groups, in response to treatment with atypical antipsychotics. All data are discussed thoroughly, providing prospective for future studies.
Collapse
|
25
|
Cellular models to study bipolar disorder: A systematic review. J Affect Disord 2015; 184:36-50. [PMID: 26070045 DOI: 10.1016/j.jad.2015.05.037] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 05/20/2015] [Accepted: 05/20/2015] [Indexed: 12/21/2022]
Abstract
BACKGROUND There is an emerging interest in the use of cellular models to study psychiatric disorders. We have systematically reviewed the application of cellular models to understand the biological basis of bipolar disorder (BD). METHOD Published scientific literature in MEDLINE, PsychINFO and SCOPUS databases were identified with the following search strategy: [(Lymphoblastoid OR Lymphoblast OR Fibroblast OR Pluripotent OR Olfactory epithelium OR Olfactory mucosa) AND (Bipolar disorder OR Lithium OR Valproate OR Mania)]. Studies were included if they had used cell cultures derived from BD patients. RESULTS There were 65 articles on lymphoblastoid cell lines, 14 articles on fibroblasts, 4 articles on olfactory neuronal epithelium (ONE) and 2 articles on neurons reprogrammed from induced pluripotent stem cell lines (IPSC). Several parameters have been studied, and the most replicated findings are abnormalities in calcium signaling, endoplasmic reticulum (ER) stress response, mitochondrial oxidative pathway, membrane ion channels, circadian system and apoptosis related genes. These, although present in basal state, seem to be accentuated in the presence of cellular stressors (e.g. oxidative stress--rotenone; ER stress--thapsigargin), and are often reversed with in-vitro lithium. CONCLUSION Cellular modeling has proven useful in BD, and potential pathways, especially in cellular resilience related mechanisms have been identified. These findings show consistency with other study designs (genome-wide association, brain-imaging, and post-mortem brain expression). ONE cells and IPSC reprogrammed neurons represent the next generation of cell models in BD. Future studies should focus on family-based study designs and combine cell models with deep sequencing and genetic manipulations.
Collapse
|
26
|
Kennedy KP, Cullen KR, DeYoung CG, Klimes-Dougan B. The genetics of early-onset bipolar disorder: A systematic review. J Affect Disord 2015; 184:1-12. [PMID: 26057335 PMCID: PMC5552237 DOI: 10.1016/j.jad.2015.05.017] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 04/20/2015] [Accepted: 05/07/2015] [Indexed: 01/19/2023]
Abstract
BACKGROUND Early-onset bipolar disorder has been associated with a significantly worse prognosis than late-onset BD and has been hypothesized to be a genetically homogenous subset of BD. A sizeable number of studies have investigated early-onset BD through linkage-analyses, candidate-gene association studies, genome-wide association studies (GWAS), and analyses of copy number variants (CNVs), but this literature has not yet been reviewed. METHODS A systematic review was conducted using the PubMed database on articles published online before January 15, 2015 and after 1990. Separate searches were made for linkage studies, candidate gene-association studies, GWAS, and studies on CNVs. RESULTS Seventy-three studies were included in our review. There is a lack of robust positive findings on the genetics of early-onset BD in any major molecular genetics method. LIMITATIONS Early-onset populations were quite small in some studies. Variance in study methods hindered efforts to interpret results or conduct meta-analysis. CONCLUSIONS The field is still at an early phase for research on early-onset BD. The largely null findings mirror the results of most genetics research on BD. Although most studies were underpowered, the null findings could mean that early-onset BD may not be as genetically homogenous as has been hypothesized or even that early-onset BD does not differ genetically from adult-onset BD. Nevertheless, clinically the probabilistic developmental risk trajectories associated with early-onset that may not be primarily genetically determined continued to warrant scrutiny. Future research should dramatically expand sample sizes, use atheoretical research methods like GWAS, and standardize methods.
Collapse
|
27
|
Nassan M, Croarkin PE, Luby JL, Veldic M, Joshi PT, McElroy SL, Post RM, Walkup JT, Cercy K, Geske J, Wagner KD, Cuellar-Barboza AB, Casuto L, Lavebratt C, Schalling M, Jensen PS, Biernacka JM, Frye MA. Association of brain-derived neurotrophic factor (BDNF) Val66Met polymorphism with early-onset bipolar disorder. Bipolar Disord 2015; 17:645-52. [PMID: 26528762 PMCID: PMC4672380 DOI: 10.1111/bdi.12323] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 04/03/2015] [Indexed: 11/30/2022]
Abstract
OBJECTIVES Brain-derived neurotrophic factor (BDNF) Val66Met (rs6265) functional polymorphism has been implicated in early-onset bipolar disorder. However, results of studies are inconsistent. We aimed to further explore this association. METHODS DNA samples from the Treatment of Early Age Mania (TEAM) and Mayo Clinic Bipolar Disorder Biobank were investigated for association of rs6265 with early-onset bipolar disorder. Bipolar cases were classified as early onset if the first manic or depressive episode occurred at age ≤19 years (versus adult-onset cases at age >19 years). After quality control, 69 TEAM early-onset bipolar disorder cases, 725 Mayo Clinic bipolar disorder cases (including 189 early-onset cases), and 764 controls were included in the analysis of association, assessed with logistic regression assuming log-additive allele effects. RESULTS Comparison of TEAM cases with controls suggested association of early-onset bipolar disorder with the rs6265 minor allele [odds ratio (OR) = 1.55, p = 0.04]. Although comparison of early-onset adult bipolar disorder cases from the Mayo Clinic versus controls was not statistically significant, the OR estimate indicated the same direction of effect (OR = 1.21, p = 0.19). When the early-onset TEAM and Mayo Clinic early-onset adult groups were combined and compared with the control group, the association of the minor allele rs6265 was statistically significant (OR = 1.30, p = 0.04). CONCLUSIONS These preliminary analyses of a relatively small sample with early-onset bipolar disorder are suggestive that functional variation in BDNF is implicated in bipolar disorder risk and may have a more significant role in early-onset expression of the disorder.
Collapse
Affiliation(s)
- Malik Nassan
- Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN
| | - Paul E Croarkin
- Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN
| | - Joan L Luby
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO
| | - Marin Veldic
- Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN
| | - Paramjit T Joshi
- Department of Psychiatry and Behavioral Sciences, Children’s National Medical Center, Washington, DC
| | | | | | - John T Walkup
- Department of Psychiatry, Weil Cornell Medical College, New York, NY
| | - Kelly Cercy
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN
| | - Jennifer Geske
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN
| | - Karen D Wagner
- Department of Psychiatry and Behavioral Sciences, University of Texas Medical Branch, Galveston, TX, USA
| | | | | | - Catharina Lavebratt
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden,Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Martin Schalling
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden,Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden
| | | | - Joanna M Biernacka
- Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN,Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN
| | - Mark A Frye
- Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN
| |
Collapse
|
28
|
Yeh FC, Kao CF, Kuo PH. Explore the Features of Brain-Derived Neurotrophic Factor in Mood Disorders. PLoS One 2015; 10:e0128605. [PMID: 26091093 PMCID: PMC4474832 DOI: 10.1371/journal.pone.0128605] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Accepted: 04/28/2015] [Indexed: 11/19/2022] Open
Abstract
Objectives Brain-derived neurotrophic factor (BDNF) plays important roles in neuronal survival and differentiation; however, the effects of BDNF on mood disorders remain unclear. We investigated BDNF from the perspective of various aspects of systems biology, including its molecular evolution, genomic studies, protein functions, and pathway analysis. Methods We conducted analyses examining sequences, multiple alignments, phylogenetic trees and positive selection across 12 species and several human populations. We summarized the results of previous genomic and functional studies of pro-BDNF and mature-BDNF (m-BDNF) found in a literature review. We identified proteins that interact with BDNF and performed pathway-based analysis using large genome-wide association (GWA) datasets obtained for mood disorders. Results BDNF is encoded by a highly conserved gene. The chordate BDNF genes exhibit an average of 75% identity with the human gene, while vertebrate orthologues are 85.9%-100% identical to human BDNF. No signs of recent positive selection were found. Associations between BDNF and mood disorders were not significant in most of the genomic studies (e.g., linkage, association, gene expression, GWA), while relationships between serum/plasma BDNF level and mood disorders were consistently reported. Pro-BDNF is important in the response to stress; the literature review suggests the necessity of studying both pro- and m-BDNF with regard to mood disorders. In addition to conventional pathway analysis, we further considered proteins that interact with BDNF (I-Genes) and identified several biological pathways involved with BDNF or I-Genes to be significantly associated with mood disorders. Conclusions Systematically examining the features and biological pathways of BDNF may provide opportunities to deepen our understanding of the mechanisms underlying mood disorders.
Collapse
Affiliation(s)
- Fan-Chi Yeh
- Department of Public Health & Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Chung-Feng Kao
- Department of Public Health & Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Po-Hsiu Kuo
- Department of Public Health & Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
- Research Center for Genes, Environment and Human Health, National Taiwan University, Taipei, Taiwan
- * E-mail:
| |
Collapse
|
29
|
Swaminathan S, Koller DL, Foroud T, Edenberg HJ, Xuei X, Niculescu AB, Nurnberger JI. Characteristics of Bipolar I patients grouped by externalizing disorders. J Affect Disord 2015; 178:206-14. [PMID: 25827505 PMCID: PMC4433475 DOI: 10.1016/j.jad.2015.03.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 02/27/2015] [Accepted: 03/05/2015] [Indexed: 11/17/2022]
Abstract
BACKGROUND Bipolar disorder co-occurs with a number of disorders with externalizing features. The aim of this study is to determine whether Bipolar I (BPI) subjects with comorbid externalizing disorders and a subgroup with externalizing symptoms prior to age 15 have different clinical features than those without externalizing disorders and whether these could be attributed to specific genetic variations. METHODS A large cohort (N=2505) of Bipolar I subjects was analyzed. Course of illness parameters were compared between an Externalizing Group, an Early-Onset Subgroup and a Non-Externalizing Group in the Discovery sample (N=1268). Findings were validated using an independent set of 1237 BPI subjects (Validation sample). Genetic analyses were carried out. RESULTS Subjects in the Externalizing Group (and Early-Onset Subgroup) tended to have a more severe clinical course, even in areas specifically related to mood disorder such as cycling frequency and rapid mood switching. Regression analysis showed that the differences are not completely explainable by substance use. Genetic analyses identified nominally associated SNPs; calcium channel genes were not enriched in the gene variants identified. LIMITATIONS Validation in independent samples is needed to confirm the genetic findings in the present study. CONCLUSIONS Our findings support the presence of an externalizing disorder subphenotype within BPI with greater severity of mood disorder and possible specific genetic features.
Collapse
Affiliation(s)
- Shanker Swaminathan
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Daniel L Koller
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Tatiana Foroud
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Howard J Edenberg
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA; Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Xiaoling Xuei
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Alexander B Niculescu
- Institute of Psychiatric Research, Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, USA
| | - John I Nurnberger
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA; Institute of Psychiatric Research, Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, USA.
| |
Collapse
|
30
|
Genetic variation in the G72 gene is associated with increased frontotemporal fiber tract integrity. Eur Arch Psychiatry Clin Neurosci 2015; 265:291-301. [PMID: 25031104 DOI: 10.1007/s00406-014-0516-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Accepted: 07/05/2014] [Indexed: 01/02/2023]
Abstract
G72 (syn. DAOA, D-amino acid oxidase activator) is a susceptibility gene for both schizophrenia and bipolar disorder. Diffusion tensor imaging studies hint at changes in fiber tract integrity in both disorders. We aimed to investigate whether a G72 susceptibility haplotype causes changes in fiber tract integrity in young healthy subjects. We compared fractional anisotropy in 47 subjects that were either homozygous for the M23/M24 risk haplotype (n = 20) or homozygous for M23(rs3918342)/M24(rs1421292) wild type (n = 27) using diffusion tensor imaging with 3 T. Tract-based spatial statistics, a method especially developed for diffusion data analysis, was used to delineate the major fiber tracts. We found clusters of increased FA values in homozygous risk haplotype carriers in the right periinsular region and in the right inferior parietal lobe (IPL). We did not find clusters indicating decreased FA values. The insula and the IPL have been implicated in both schizophrenia and bipolar pathophysiology. Increased FA values might reflect changes in dendritic morphology as previously described by in vitro studies. These findings further corroborate the hypothesis that a shared gene pool between schizophrenia and bipolar disorder might lead to neuroanatomic changes that confer an unspecific vulnerability for both disorders.
Collapse
|
31
|
Holtzman JN, Lolich M, Ketter TA, Vázquez GH. Clinical characteristics of bipolar disorder: a comparative study between Argentina and the United States. Int J Bipolar Disord 2015; 3:8. [PMID: 25909050 PMCID: PMC4406987 DOI: 10.1186/s40345-015-0027-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Accepted: 04/13/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Bipolar disorder presents with diverse clinical manifestations. Numerous investigators have sought to identify variables that may predict a more severe illness course. METHODS With the objective of studying the clinical characteristics of bipolar patients between South and North America, a comparison was performed between a sample from Argentina (n = 449) and a sample from the United States (n = 503) with respect to demographics and clinical characteristics, including presence of comorbidities. RESULTS The Argentinian sample had more unfavorable demographics and higher rates of prior psychiatric hospitalization and prior suicide attempt but a better social outcome. However, the sample from the United States had a higher rate of prior year rapid cycling, as well as younger bipolar disorder onset age (mean ± SD, 17.9 ± 8.4 vs. 27.1 ± 11.4 years) and more severe clinical morbidity, though there was no significant difference in terms of the total duration of the illness. Argentinian compared to American patients were taking more mood stabilizers and benzodiazepines/hypnotics, but fewer antipsychotics and other psychotropic medications, when considering patients in aggregate as well as when stratifying by illness subtype (bipolar I versus bipolar II) and by illness onset age (≤21 vs. >21 years). However, there was no significant difference in rate of antidepressant prescription between the two samples considered in aggregate. CONCLUSIONS Although possessing similar illness durations, these samples presented significant clinical differences and distinctive prescription patterns. Thus, though the Argentinian compared to North American patients had more unfavorable demographics, they presented a better social outcome and, in several substantive ways, more favorable illness characteristics. In both samples, early onset (age ≤ 21 years) was a marker for poor prognosis throughout the illness course, although this phenomenon appeared more robust in North America.
Collapse
Affiliation(s)
- Jessica N Holtzman
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Road, Stanford, CA 94305 USA ; Department of Neuroscience, Research Center in Neuroscience and Neuropsychology, Universidad de Palermo, Mario Bravo 1259, C1175ABT Buenos Aires, Argentina
| | - Maria Lolich
- Department of Neuroscience, Research Center in Neuroscience and Neuropsychology, Universidad de Palermo, Mario Bravo 1259, C1175ABT Buenos Aires, Argentina
| | - Terence A Ketter
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Road, Stanford, CA 94305 USA
| | - Gustavo H Vázquez
- Department of Neuroscience, Research Center in Neuroscience and Neuropsychology, Universidad de Palermo, Mario Bravo 1259, C1175ABT Buenos Aires, Argentina
| |
Collapse
|
32
|
González-Castro TB, Nicolini H, Lanzagorta N, López-Narváez L, Genis A, Pool García S, Tovilla-Zárate CA. The role of brain-derived neurotrophic factor (BDNF) Val66Met genetic polymorphism in bipolar disorder: a case-control study, comorbidities, and meta-analysis of 16,786 subjects. Bipolar Disord 2015; 17:27-38. [PMID: 25041243 DOI: 10.1111/bdi.12227] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Accepted: 12/20/2013] [Indexed: 02/01/2023]
Abstract
OBJECTIVES The aim of this study was to evaluate the association of Val66Met brain-derived neurotrophic factor (BDNF) polymorphism with bipolar disorder in (i) a meta-analysis and (ii) a case-control study in a Mexican population. We also investigated the possible association of this polymorphism with clinical features. METHODS We performed a keyword search of the PubMed and Web of Science databases. A total of 22 studies that have investigated the association of Val66Met (rs6265) with bipolar disorder were selected for inclusion and combined with random effects meta-analysis, using allelic, additive, dominant, and recessive models. Finally, the single nucleotide polymorphism (rs6265) Val66Met in the BDNF gene was genotyped and compared between 139 patients with bipolar disorder and 141 healthy volunteers in a Mexican population. RESULTS The pooled results from the meta-analysis (9,349 cases and 7,437 controls) did not show a significant association in any of the models. The same results were obtained in our case-control study when analyzing the distribution of the genotypic frequencies of the Val66Met polymorphism in patients with bipolar disorder. However, when we analyzed the association between rs6265 and lifetime history of suicidal behavior, we found an association between genotype Val-Val and suicide attempt (p = 0.02). CONCLUSIONS Although the present study has some limitations, the results indicate a lack of association between the Val66Met polymorphism and bipolar disorder. However, in our case-control study in a Mexican population, the Val66Met polymorphism was associated with suicidal behavior in patients with bipolar disorder. Nevertheless, it is important to consider potential interactions of the BDNF gene, the environment, and different inheritance patterns, when carrying out future genetic studies with larger samples.
Collapse
|
33
|
Jacobsen KK, Nievergelt CM, Zayats T, Greenwood TA, Anttila V, Akiskal HS, Haavik J, Fasmer OB, Kelsoe JR, Johansson S, Oedegaard KJ. Genome wide association study identifies variants in NBEA associated with migraine in bipolar disorder. J Affect Disord 2015; 172:453-61. [PMID: 25451450 PMCID: PMC4394021 DOI: 10.1016/j.jad.2014.10.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Revised: 10/02/2014] [Accepted: 10/03/2014] [Indexed: 01/19/2023]
Abstract
BACKGROUND Migraine is a common comorbidity among individuals with bipolar disorder, but the underlying mechanisms for this co-occurrence are poorly understood. The aim of this study was to investigate the genetic background of bipolar patients with and without migraine. METHODS We performed a genome-wide association analysis contrasting 460 bipolar migraneurs with 914 bipolar patients without migraine from the Bipolar Genome Study (BiGS). RESULTS We identified one genome-wide significant association between migraine in bipolar disorder patients and rs1160720, an intronic single nucleotide polymorphism (SNP) in the NBEA gene (P=2.97 × 10(-8), OR: 1.82, 95% CI: 1.47-2.25), although this was not replicated in a smaller sample of 289 migraine cases. LIMITATIONS Our study is based on self-reported migraine. CONCLUSIONS NBEA encodes neurobeachin, a scaffolding protein primarily expressed in the brain and involved in trafficking of vesicles containing neurotransmitter receptors. This locus has not previously been implicated in migraine per se. We found no evidence of association in data from the GWAS migraine meta-analysis consortium (n=118,710 participants) suggesting that the association might be specific to migraine co-morbid with bipolar disorder.
Collapse
Affiliation(s)
- Kaya K. Jacobsen
- Department of Biomedicine, University of Bergen, Norway,Center for Medical Genetics and Molecular Medicine, Haukeland University Hospital, Bergen, Norway,K. G. Jebsen Center for Research on Neuropsychiatric Disorders, University of Bergen, Norway
| | | | - Tetyana Zayats
- Department of Biomedicine, University of Bergen, Norway,Center for Medical Genetics and Molecular Medicine, Haukeland University Hospital, Bergen, Norway,K. G. Jebsen Center for Research on Neuropsychiatric Disorders, University of Bergen, Norway
| | | | - Verneri Anttila
- Analytical and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA,Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA,lnstitute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland
| | | | - Hagop S. Akiskal
- Department of Psychiatry, University of California San Diego, USA,Department of Psychiatry, VA Hospital, San Diego, USA
| | | | - Jan Haavik
- Department of Biomedicine, University of Bergen, Norway,K. G. Jebsen Center for Research on Neuropsychiatric Disorders, University of Bergen, Norway,Division of Psychiatry, Haukeland University Hospital, Bergen, Norway
| | - Ole Bernt Fasmer
- K. G. Jebsen Center for Research on Neuropsychiatric Disorders, University of Bergen, Norway,Division of Psychiatry, Haukeland University Hospital, Bergen, Norway,Department of Clinical Medicine, Section for Psychiatry, Faculty of Medicine and Dentistry, University of Bergen, Norway
| | - John R. Kelsoe
- Department of Psychiatry, University of California San Diego, USA,Department of Psychiatry, VA Hospital, San Diego, USA
| | - Stefan Johansson
- Department of Biomedicine, University of Bergen, Norway,Center for Medical Genetics and Molecular Medicine, Haukeland University Hospital, Bergen, Norway,K. G. Jebsen Center for Research on Neuropsychiatric Disorders, University of Bergen, Norway,Department of Clinical Science, University of Bergen, Norway
| | - Ketil J. Oedegaard
- K. G. Jebsen Center for Research on Neuropsychiatric Disorders, University of Bergen, Norway,Division of Psychiatry, Haukeland University Hospital, Bergen, Norway,Department of Clinical Medicine, Section for Psychiatry, Faculty of Medicine and Dentistry, University of Bergen, Norway
| |
Collapse
|
34
|
Bipolar disorder: role of immune-inflammatory cytokines, oxidative and nitrosative stress and tryptophan catabolites. Curr Psychiatry Rep 2015; 17:8. [PMID: 25620790 DOI: 10.1007/s11920-014-0541-1] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Bipolar disorder (BD) is a complex disorder with a range of presentations. BD is defined by the presentation of symptoms of mania or depression, with classification dependent on patient/family reports and behavioural observations. Recent work has investigated the biological underpinnings of BD, highlighting the role played by increased immune-inflammatory activity, which is readily indicated by changes in pro-inflammatory cytokines or signalling, both centrally and systemically, e.g. increased interleukin-6 trans-signalling. Here, we review the recent data on immune-inflammatory pathways and cytokine changes in BD. Such changes are intimately linked to changes in oxidative and nitrosative stress (O&NS) and neuroregulatory tryptophan catabolites (TRYCATs), both centrally and peripherally. TRYCATs take tryptophan away from serotonin, N-acetylserotonin and melatonin synthesis, driving it down the TRYCAT pathway, predominantly as a result of the pro-inflammatory cytokine induction of indoleamine 2,3-dioxygenase. This has led to an emerging biological perspective on the aetiology, course and treatment of BD. Such data also better integrates the numerous comorbidities associated with BD, including addiction, cardiovascular disorders and increased reporting of pain. Immune-inflammatory, O&NS and TRYCAT pathways are also likely to be relevant biological underpinnings to the significant decrease in life expectancy in BD.
Collapse
|
35
|
Zhao L, Lin Y, Lao G, Wang Y, Guan L, Wei J, Yang Z, Ni P, Li X, Jiang Z, Li T, Hao X, Lin D, Cao L, Ma X. Association study of dopamine receptor genes polymorphism with cognitive functions in bipolar I disorder patients. J Affect Disord 2015; 170:85-90. [PMID: 25233244 DOI: 10.1016/j.jad.2014.08.039] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 07/21/2014] [Accepted: 08/13/2014] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To determine the correlation among the polymorphisms of dopamine receptor genes, cognitive function of Bipolar disorder (BD) patients, and BD. METHODS Twenty-three Single Nucleotide Polymorphisms (SNPs) of dopamine receptor genes were genotyped using Illumina GoldenGate genotyping assay in 375 patients with bipolar I disorder (BD-I) (patients group) and 475 healthy controls (control group). Cognitive function tests were performed in 158 patients who were clinically stable and 307 healthy controls who were matched with the patients in age, sex, and education. RESULTS The allele frequencies of rs3758653 in the promoter region of the DRD4 gene were significantly different between patients group and control group (χ(2)=9.386, Corrected P=0.046). This significant difference was also observed between BD-I patients with psychotic symptoms and healthy controls (χ(2)=9.27, Corrected P=0.049). Patients with BD-I performed significantly worse than healthy controls in all cognitive domains (p<0.01) except TMTA errors and illegal time. Significant interactions between polymorphisms of rs5326 in DRD1 gene and phenotype (affected or unaffected with BD-I) were found in non-perseverative errors (β=3.20 and Corrected P=0.0034) on the Wisconsin Card Sorting Test (WCST). The allele of this SNP denoted the positive effect on the WCST non-perseverative errors in BD-I patients group (β=2.80 and Corrected P=0.017). The genotypic association analyses also supported the findings (F=4.24 and P=0.007), but this effect was not found in controls. LIMITATIONS The sample size was relatively small and the SNP coverage was limited, making it very important to be cautious when drawing a conclusion. CONCLUSIONS DRD4 gene may play an important role in psychotic symptomatology rather than in unique diagnosis, BD, for example. A genetic association exists between DRD1 gene and impaired cognition in BD.
Collapse
Affiliation(s)
- Liansheng Zhao
- Psychiatric Laboratory and Department of Psychiatry, West China Hospital, Sichuan University, No. 1 Keyuan 4 Road, High Tech Parkm, Chengdu 610041, PR China; National Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Yin Lin
- Guangzhou Brain Hospital, Affilated Brain Hospital of Guangzhou Medical University, No. 36 Minxin Road, Liwan District, Guangzhou 510370, PR China
| | - Guohui Lao
- Guangzhou Brain Hospital, Affilated Brain Hospital of Guangzhou Medical University, No. 36 Minxin Road, Liwan District, Guangzhou 510370, PR China
| | - Yingcheng Wang
- Psychiatric Laboratory and Department of Psychiatry, West China Hospital, Sichuan University, No. 1 Keyuan 4 Road, High Tech Parkm, Chengdu 610041, PR China; National Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Lijie Guan
- Guangzhou Brain Hospital, Affilated Brain Hospital of Guangzhou Medical University, No. 36 Minxin Road, Liwan District, Guangzhou 510370, PR China
| | - Jinxue Wei
- Psychiatric Laboratory and Department of Psychiatry, West China Hospital, Sichuan University, No. 1 Keyuan 4 Road, High Tech Parkm, Chengdu 610041, PR China; National Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Zhenxing Yang
- Psychiatric Laboratory and Department of Psychiatry, West China Hospital, Sichuan University, No. 1 Keyuan 4 Road, High Tech Parkm, Chengdu 610041, PR China; National Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Peiyan Ni
- Psychiatric Laboratory and Department of Psychiatry, West China Hospital, Sichuan University, No. 1 Keyuan 4 Road, High Tech Parkm, Chengdu 610041, PR China; National Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Xuan Li
- Guangzhou Brain Hospital, Affilated Brain Hospital of Guangzhou Medical University, No. 36 Minxin Road, Liwan District, Guangzhou 510370, PR China
| | - Zeyu Jiang
- Guangzhou Brain Hospital, Affilated Brain Hospital of Guangzhou Medical University, No. 36 Minxin Road, Liwan District, Guangzhou 510370, PR China
| | - Tao Li
- Psychiatric Laboratory and Department of Psychiatry, West China Hospital, Sichuan University, No. 1 Keyuan 4 Road, High Tech Parkm, Chengdu 610041, PR China; National Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Xiaoyu Hao
- Guangzhou Brain Hospital, Affilated Brain Hospital of Guangzhou Medical University, No. 36 Minxin Road, Liwan District, Guangzhou 510370, PR China
| | - Dongtao Lin
- Psychiatric Laboratory and Department of Psychiatry, West China Hospital, Sichuan University, No. 1 Keyuan 4 Road, High Tech Parkm, Chengdu 610041, PR China; College of Foreign Languages and Cultures, Sichuan University, Chengdu 610064, PR China
| | - Liping Cao
- Guangzhou Brain Hospital, Affilated Brain Hospital of Guangzhou Medical University, No. 36 Minxin Road, Liwan District, Guangzhou 510370, PR China.
| | - Xiaohong Ma
- Psychiatric Laboratory and Department of Psychiatry, West China Hospital, Sichuan University, No. 1 Keyuan 4 Road, High Tech Parkm, Chengdu 610041, PR China; National Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, PR China.
| |
Collapse
|
36
|
Gatt JM, Burton KLO, Williams LM, Schofield PR. Specific and common genes implicated across major mental disorders: a review of meta-analysis studies. J Psychiatr Res 2015; 60:1-13. [PMID: 25287955 DOI: 10.1016/j.jpsychires.2014.09.014] [Citation(s) in RCA: 190] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Revised: 09/15/2014] [Accepted: 09/15/2014] [Indexed: 02/07/2023]
Abstract
Major efforts have been directed at family-based association and case-control studies to identify the involvement of candidate genes in the major disorders of mental health. What remains unknown is whether candidate genes are associated with multiple disorders via pleiotropic mechanisms, and/or if other genes are specific to susceptibility for individual disorders. Here we undertook a review of genes that have been identified in prior meta-analyses examining specific genes and specific mental disorders that have core disruptions to emotional and cognitive function and contribute most to burden of illness- major depressive disorder (MDD), anxiety disorders (AD, including panic disorder and obsessive compulsive disorder), schizophrenia (SZ) and bipolar disorder (BD) and attention deficit hyperactivity disorder (ADHD). A literature review was conducted up to end-March 2013 which included a total of 1519 meta-analyses across 157 studies reporting multiple genes implicated in one or more of the five disorders studied. A total of 134 genes (206 variants) were identified as significantly associated risk variants for MDD, AD, ADHD, SZ or BD. Null genetic effects were also reported for 195 genes (426 variants). 13 genetic variants were shared in common between two or more disorders (APOE e4, ACE Ins/Del, BDNF Val66Met, COMT Val158Met, DAOA G72/G30 rs3918342, DAT1 40-bp, DRD4 48-bp, SLC6A4 5-HTTLPR, HTR1A C1019G, MTHR C677T, MTHR A1298C, SLC6A4 VNTR and TPH1 218A/C) demonstrating evidence for pleiotrophy. Another 12 meta-analyses of GWAS studies of the same disorders were identified, with no overlap in genetic variants reported. This review highlights the progress that is being made in identifying shared and unique genetic mechanisms that contribute to the risk of developing several major psychiatric disorders, and identifies further steps for progress.
Collapse
Affiliation(s)
- Justine M Gatt
- The Brain Dynamics Centre, Discipline of Psychiatry, Sydney Medical School, University of Sydney, Sydney, NSW, 2006, Australia; Westmead Millennium Institute, Westmead, NSW, 2145, Australia; Neuroscience Research Australia, Randwick, NSW, 2031, Australia; School of Psychology, University of New South Wales, Sydney, NSW, 2052, Australia.
| | - Karen L O Burton
- The Brain Dynamics Centre, Discipline of Psychiatry, Sydney Medical School, University of Sydney, Sydney, NSW, 2006, Australia; Westmead Millennium Institute, Westmead, NSW, 2145, Australia; Neuroscience Research Australia, Randwick, NSW, 2031, Australia; School of Medicine, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Leanne M Williams
- The Brain Dynamics Centre, Discipline of Psychiatry, Sydney Medical School, University of Sydney, Sydney, NSW, 2006, Australia; Department of Psychiatry and Behavioral Sciences, Stanford School of Medicine, Stanford University, Stanford, CA, 94305-5717, USA
| | - Peter R Schofield
- Neuroscience Research Australia, Randwick, NSW, 2031, Australia; School of Medicine, University of New South Wales, Sydney, NSW, 2052, Australia
| |
Collapse
|
37
|
Pirooznia M, Seifuddin F, Judy J, Goes FS, Potash JB, Zandi PP. Metamoodics: meta-analysis and bioinformatics resource for mood disorders. Mol Psychiatry 2014; 19:748-9. [PMID: 24018898 PMCID: PMC3955217 DOI: 10.1038/mp.2013.118] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Mehdi Pirooznia
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Fayaz Seifuddin
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Jennifer Judy
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Fernando S Goes
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - James B Potash
- Department of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, Iowa
| | - Peter P Zandi
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, Maryland,Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland,Corresponding author: Peter P. Zandi, Ph.D., Associate Professor, Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Hampton House, Room 657, 624 North Broadway, Baltimore, MD 21205,
| |
Collapse
|
38
|
Tan J, Chen S, Su L, Long J, Xie J, Shen T, Jiang J, Gu L. Association of the T102C polymorphism in the HTR2A gene with major depressive disorder, bipolar disorder, and schizophrenia. Am J Med Genet B Neuropsychiatr Genet 2014; 165B:438-55. [PMID: 24962835 DOI: 10.1002/ajmg.b.32248] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2013] [Accepted: 05/23/2014] [Indexed: 12/12/2022]
Abstract
A number of studies have assessed a relationship between the T102C polymorphism in the HTR2A gene with an increased risk of major depressive disorder (MDD), bipolar disorder (BPD), and schizophrenia (SCZ). However, the results have been inconsistent. Hence, we performed this study to further evaluate potential associations between the T102C polymorphism and MDD, BPD, and SCZ. The strength of separate associations between the T102C polymorphism and the risk of MDD, BPD, or SCZ was measured by ORs and 95% confidence intervals (CIs) in six genetic models. Cochran's chi-square-based Q-statistic and I(2) were used to evaluate the heterogeneity between studies. The funnel plot and the Egger's test were used to assess the publication bias. Cumulative meta-analysis was also performed to evaluate the trend in OR over time. No significant association was found in the overall analysis of MDD, BPD and SCZ with a sample size of 17,178 cases and 20,855 control subjects. In a further analysis by ethnicity, the OR and 95% CIs indicated the T102C polymorphism was not associated with MDD, BPD, or SCZ in Caucasian, Asian or Chinese populations. No publication bias was observed in the meta-analysis, and the cumulative analyses indicated the robust stability of the results. Thus, the results of our study indicate that the T102C polymorphism is not associates with increased susceptibility to MDD, BPD, and SCZ.
Collapse
Affiliation(s)
- Jinjing Tan
- Department of Internal Neurology, First Affiliated Hospital, Guangxi University of Chinese Medicine, 89-9 Dongge Road, Nanning, Guangxi, China
| | | | | | | | | | | | | | | |
Collapse
|
39
|
Tan J, Lin Y, Su L, Yan Y, Chen Q, Jiang H, Wei Q, Gu L. Association between DAOA gene polymorphisms and the risk of schizophrenia, bipolar disorder and depressive disorder. Prog Neuropsychopharmacol Biol Psychiatry 2014; 51:89-98. [PMID: 24447945 DOI: 10.1016/j.pnpbp.2014.01.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2013] [Revised: 01/09/2014] [Accepted: 01/10/2014] [Indexed: 01/09/2023]
Abstract
OBJECTIVE Schizophrenia (SCZ), bipolar disorder (BD) and depressive disorder (DD) are common psychiatric disorders, which show common genetic vulnerability. Previous gene-disease association studies have reported correlations between d-amino acid oxidase activator (DAOA) gene polymorphisms and the three psychiatric disorders. However, the findings were contradictory. A meta-analysis was therefore conducted to provide more robust investigations into DAOA polymorphisms and the risk of SCZ, BD and DD. METHODS This meta-analysis recruited 46 published studies up to July 2013, including 17,515 cases and 25,189 controls. Odds ratios (ORs) with 95% confidence intervals (CIs) were used to evaluate the association between three specific DAOA SNPs and SCZ, BD and DD. Publication bias was tested by Begg's test and funnel plot, and heterogeneity was assessed by the Cochran's chi-square-based Q statistic and the inconsistency index (I(2)). Moreover, the robustness of the findings was estimated by cumulative meta-analysis. RESULTS DAOA genetic polymorphisms (M15, M18 and M23) were not found to confer a statistically significant increased risk of SCZ, BD or DD in the overall sample, or in Caucasians and Asians following subgroup analysis. CONCLUSION The current study indicated that M15, M18 and M23 might not be the risk factor for SCZ, BD or DD. However, further studies are required to provide robust evidence to estimate the association between DAOA polymorphisms and psychiatric disorders.
Collapse
Affiliation(s)
- Jinjing Tan
- Department of Internal Neurology, First Affiliated Hospital, Guangxi University of Chinese Medicine, 89-9 Dongge Road, Nanning, Guangxi, China
| | - Yu Lin
- School of Preclinical Medicine of Guangxi Medical University, Nanning, Guangxi, China
| | - Li Su
- School of Public Health of Guangxi Medical University, Nanning, Guangxi, China
| | - Yan Yan
- Department of Internal Neurology, First Affiliated Hospital, Guangxi University of Chinese Medicine, 89-9 Dongge Road, Nanning, Guangxi, China
| | - Qing Chen
- Department of Internal Neurology, First Affiliated Hospital, Guangxi University of Chinese Medicine, 89-9 Dongge Road, Nanning, Guangxi, China
| | - Haiyun Jiang
- Department of Internal Neurology, First Affiliated Hospital, Guangxi University of Chinese Medicine, 89-9 Dongge Road, Nanning, Guangxi, China
| | - Qiugui Wei
- Department of Internal Neurology, First Affiliated Hospital, Guangxi University of Chinese Medicine, 89-9 Dongge Road, Nanning, Guangxi, China
| | - Lian Gu
- Department of Internal Neurology, First Affiliated Hospital, Guangxi University of Chinese Medicine, 89-9 Dongge Road, Nanning, Guangxi, China.
| |
Collapse
|
40
|
Iofrida C, Palumbo S, Pellegrini S. Molecular genetics and antisocial behavior: where do we stand? Exp Biol Med (Maywood) 2014; 239:1514-23. [PMID: 24764243 DOI: 10.1177/1535370214529508] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Over the last two decades, it has become increasingly evident that control of aggressive behavior is modulated by the individual genetic profile as well. Several candidate genes have been proposed to play a role in the risk to develop antisocial behavior, and distinct brain imaging studies have shown that specific cortical areas may be functionally and/or structurally impaired in impulsive violent subjects on the basis of their genotypes. In this paper, we review the findings regarding four polymorphisms-MAOA (Monoamine oxidase A) uVNTR, SLC6A4 (solute carrier family 6 (neurotransmitter transporter), member 4) 5HTTLPR, COMT (Catechol-O-methyltransferase) Val158Met and DRD4 (dopamine D4 receptor) VNTR 1-11-that all have been found to be associated with an increased vulnerability for antisocial and impulsive behavior in response to aversive environmental conditions. These results, however, have not been replicated by other studies, likely because of crucial methodological discrepancies, including variability in the criteria used to define antisocial behavior and assessment of environmental factors. Finally, it has been recently proposed that these genetic variants may actually increase the individual susceptibility not merely to the negative environmental factors, but to the positive ones as well. In this view, such alleles would play a wider modulatory role, by acting as "plasticity" rather than "vulnerability" genes. Overall, these findings have potential important implications that span well outside of neuroscience and psychiatry, to embrace ethics, philosophy, and the law itself, as they pose new challenges to the very notion of Free Will. Novel properly controlled studies that examine multi-allelic genetic profiles, rather than focusing on distinct single variants, will make it possible to achieve a clearer understanding of the molecular underpinnings of the nature by nurture interaction.
Collapse
Affiliation(s)
- Caterina Iofrida
- Laboratory of Molecular Biology, Department of Surgical, Medical and Molecular Pathology and of Critical Care, University of Pisa, Pisa I-56126, Italy
| | - Sara Palumbo
- Laboratory of Molecular Biology, Department of Surgical, Medical and Molecular Pathology and of Critical Care, University of Pisa, Pisa I-56126, Italy
| | - Silvia Pellegrini
- Laboratory of Molecular Biology, Department of Surgical, Medical and Molecular Pathology and of Critical Care, University of Pisa, Pisa I-56126, Italy
| |
Collapse
|
41
|
Sprooten E, Knowles EE, McKay DR, Göring HH, Curran JE, Kent JW, Carless MA, Dyer TD, Drigalenko EI, Olvera RL, Fox PT, Almasy L, Duggirala R, Kochunov P, Blangero J, Glahn DC. Common genetic variants and gene expression associated with white matter microstructure in the human brain. Neuroimage 2014; 97:252-61. [PMID: 24736177 DOI: 10.1016/j.neuroimage.2014.04.021] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 03/29/2014] [Accepted: 04/07/2014] [Indexed: 12/29/2022] Open
Abstract
Identifying genes that contribute to white matter microstructure should provide insights into the neurobiological processes that regulate white matter development, plasticity and pathology. We detected five significant SNPs using genome-wide association analysis on a global measure of fractional anisotropy in 776 individuals from large extended pedigrees. Genetic correlations and genome-wide association results indicated that the genetic signal was largely homogeneous across white matter regions. Using RNA transcripts derived from lymphocytes in the same individuals, we identified two genes (GNA13 and CCDC91) that are likely to be cis-regulated by top SNPs, and whose expression levels were also genetically correlated with fractional anisotropy. A transcript of HTR7 was phenotypically associated with FA, and was associated with an intronic genome-wide significant SNP. These results encourage further research in the mechanisms by which GNA13, HTR7 and CCDC91 influence brain structure, and emphasize a role for g-protein signaling in the development and maintenance of white matter microstructure in health and disease.
Collapse
Affiliation(s)
- Emma Sprooten
- Department of Psychiatry, Yale University School of Medicine, 300 George Street, New Haven, CT, USA; Olin Neuropsychiatry Research Center, Institute of Living, Hartford Hospital, 200 Retreat Avenue, CT, USA.
| | - Emma E Knowles
- Department of Psychiatry, Yale University School of Medicine, 300 George Street, New Haven, CT, USA; Olin Neuropsychiatry Research Center, Institute of Living, Hartford Hospital, 200 Retreat Avenue, CT, USA
| | - D Reese McKay
- Department of Psychiatry, Yale University School of Medicine, 300 George Street, New Haven, CT, USA; Olin Neuropsychiatry Research Center, Institute of Living, Hartford Hospital, 200 Retreat Avenue, CT, USA
| | - Harald H Göring
- Department of Genetics, Texas Biomedical Research Institute, PO Box 760549, San Antonio, TX, USA
| | - Joanne E Curran
- Department of Genetics, Texas Biomedical Research Institute, PO Box 760549, San Antonio, TX, USA
| | - Jack W Kent
- Department of Genetics, Texas Biomedical Research Institute, PO Box 760549, San Antonio, TX, USA
| | - Melanie A Carless
- Department of Genetics, Texas Biomedical Research Institute, PO Box 760549, San Antonio, TX, USA
| | - Thomas D Dyer
- Department of Genetics, Texas Biomedical Research Institute, PO Box 760549, San Antonio, TX, USA
| | - Eugene I Drigalenko
- Department of Genetics, Texas Biomedical Research Institute, PO Box 760549, San Antonio, TX, USA
| | - Rene L Olvera
- Department of Psychiatry, University of Texas Health Science Center San Antonio, 7703 Floyd Curl Drive, San Antonio, TX, USA
| | - Peter T Fox
- Research Imaging Institute, University of Texas Health Science Center San Antonio, 8403 Floyd Curl Drive, San Antonio, TX, USA; South Texas Veterans Health System, 7400 Merton Minter, San Antonio, TX 78229, USA
| | - Laura Almasy
- Department of Genetics, Texas Biomedical Research Institute, PO Box 760549, San Antonio, TX, USA
| | - Ravi Duggirala
- Department of Genetics, Texas Biomedical Research Institute, PO Box 760549, San Antonio, TX, USA
| | - Peter Kochunov
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - John Blangero
- Department of Genetics, Texas Biomedical Research Institute, PO Box 760549, San Antonio, TX, USA
| | - David C Glahn
- Department of Psychiatry, Yale University School of Medicine, 300 George Street, New Haven, CT, USA; Olin Neuropsychiatry Research Center, Institute of Living, Hartford Hospital, 200 Retreat Avenue, CT, USA
| |
Collapse
|
42
|
Kirshenbaum G, Burgess C, Déry N, Fahnestock M, Peever J, Roder J. Attenuation of mania-like behavior in Na+,K+-ATPase α3 mutant mice by prospective therapies for bipolar disorder: Melatonin and exercise. Neuroscience 2014; 260:195-204. [DOI: 10.1016/j.neuroscience.2013.12.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Revised: 11/21/2013] [Accepted: 12/04/2013] [Indexed: 01/12/2023]
|
43
|
Higher risk of developing major depression and bipolar disorder in later life among adolescents with asthma: a nationwide prospective study. J Psychiatr Res 2014; 49:25-30. [PMID: 24275549 DOI: 10.1016/j.jpsychires.2013.10.015] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Revised: 10/22/2013] [Accepted: 10/23/2013] [Indexed: 12/24/2022]
Abstract
OBJECTIVE Previous studies have suggested an immunological dysfunction in mood disorders, but rarely have investigated the temporal association between allergic diseases and mood disorders. Using the Taiwan National Health Insurance Research Database, we attempted to investigate the association between asthma in early adolescence and the risk of unipolar depression and bipolar disorder in later life. METHODS In all, 1453 adolescents with asthma aged between 10 and 15 years and 5812 age-/gender-matched controls were selected in 1998-2000. Subjects with unipolar depression and bipolar disorder that occurred up to the end of follow-up (December 31 2010) were identified. RESULTS Adolescents with asthma had a higher incidence of major depression (2.8% vs. 1.1%, p < 0.001), any depressive disorder (6.1% vs. 2.6%, p < 0.001), and bipolar disorder (1.0% vs. 0.3%, p < 0.001) than the control group. Cox regression analysis showed that asthma in early adolescence was associated with an increased risk of developing major depression (hazard ratio [HR]: 1.81, 95% confidence interval [CI]: 1.14-2.89), any depressive disorder (HR: 1.74, 95% CI: 1.27-2.37), and bipolar disorder (HR: 2.27, 95% CI: 1.01-5.07), after adjusting for demographic data and comorbid allergic diseases. DISCUSSION Adolescents with asthma had an elevated risk of developing mood disorders in later life. Further studies would be required to investigate the underlying mechanisms for this comorbid association and elucidate whether prompt intervention for asthma would decrease the risk of developing mood disorders.
Collapse
|
44
|
Machado-Vieira R, Soeiro-De-Souza MG, Richards EM, Teixeira AL, Zarate CA. Multiple levels of impaired neural plasticity and cellular resilience in bipolar disorder: developing treatments using an integrated translational approach. World J Biol Psychiatry 2014; 15:84-95. [PMID: 23998912 PMCID: PMC4180367 DOI: 10.3109/15622975.2013.830775] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVES This paper reviews the neurobiology of bipolar disorder (BD), particularly findings associated with impaired cellular resilience and plasticity. METHODS PubMed/Medline articles and book chapters published over the last 20 years were identified using the following keyword combinations: BD, calcium, cytokines, endoplasmic reticulum (ER), genetics, glucocorticoids, glutamate, imaging, ketamine, lithium, mania, mitochondria, neuroplasticity, neuroprotection, neurotrophic, oxidative stress, plasticity, resilience, and valproate. RESULTS BD is associated with impaired cellular resilience and synaptic dysfunction at multiple levels, associated with impaired cellular resilience and plasticity. These findings were partially prevented or even reversed with the use of mood stabilizers, but longitudinal studies associated with clinical outcome remain scarce. CONCLUSIONS Evidence consistently suggests that BD involves impaired neural plasticity and cellular resilience at multiple levels. This includes the genetic and intra- and intercellular signalling levels, their impact on brain structure and function, as well as the final translation into behaviour/cognitive changes. Future studies are expected to adopt integrated translational approaches using a variety of methods (e.g., microarray approaches, neuroimaging, genetics, electrophysiology, and the new generation of -omics techniques). These studies will likely focus on more precise diagnoses and a personalized medicine paradigm in order to develop better treatments for those who need them most.
Collapse
Affiliation(s)
- Rodrigo Machado-Vieira
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, NIH, Bethesda, MD, USA,Laboratory of Neuroscience, LIM27, Institute and Department of Psychiatry, School of Medicine, University of Sao Paulo, SP, Brazil,Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), University of Sao Paulo, SP, Brazil
| | - Marcio G. Soeiro-De-Souza
- Mood Disorders Unit (GRUDA), Institute and Department of Psychiatry, School of Medicine, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Erica M. Richards
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, NIH, Bethesda, MD, USA
| | - Antonio L. Teixeira
- Neurology Group, Department of Internal Medicine, School of Medicine, UFMG, Belo Horizonte, Brazil
| | - Carlos A. Zarate
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, NIH, Bethesda, MD, USA
| |
Collapse
|
45
|
Hoertel N, de Maricourt P, Gorwood P. Novel routes to bipolar disorder drug discovery. Expert Opin Drug Discov 2013; 8:907-18. [PMID: 23706065 DOI: 10.1517/17460441.2013.804057] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Bipolar disorder (BD) is a severe and chronic medical condition typified by episodic recurrent mania (or hypomania) in addition to major depression. BD is associated with a number of negative outcomes including premature death, reduced quality of life and can also lead to other complications including impaired cognitive function. Unfortunately, the currently available pharmacological treatments for BD are insufficient for many with the condition. AREAS COVERED This review focuses on known therapeutic targets of mood stabilizing drugs including: the glycogen synthase kinase-3 (GSK-3), the phosphoinositide pathway and protein kinase C (PKC), the brain-derived neurotrophic factor (BDNF), and histone deacetylases (HDACs). This article also presents new promising therapeutic targets including: the glutamatergic pathway, mitochondrial modulators, neuropeptide-converting endopeptidases, the insulin transduction pathway, the purinergic system and the melatoninergic system. EXPERT OPINION Challenges in improving methods and tools to generate, integrate and analyze high-dimensional data are required to allow opening novel routes to BD drug discovery. Through the application of systems biology approaches and the use of bioinformatical tools to integrate all omics data, it will be possible in the near future to gain deeper insights into pathophysiology of BD. This will in turn lead to the identification and exploitation of new potential therapeutic approaches.
Collapse
Affiliation(s)
- Nicolas Hoertel
- Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpital Corentin-Celton, Service de psychiatrie, Issy-les-Moulineaux, Paris, France
| | | | | |
Collapse
|
46
|
Abstract
Studies of families and twins show the importance of genetic factors affecting susceptibility to bipolar disorder and suggest substantial genetic and phenotypic complexity. Robust and replicable genome-wide significant associations have recently been reported in genome-wide association studies at several common polymorphisms, including variants within the genes CACNA1C, ODZ4, and NCAN. Strong evidence exists for a polygenic contribution to risk (ie, many risk alleles of small effect). A notable finding is the overlap of susceptibility between bipolar disorder and schizophrenia for several individual risk alleles and for the polygenic risk. By contrast, genomic structural variation seems to play a smaller part in bipolar disorder than it does in schizophrenia. Together, these genetic findings suggest directions for future studies to delineate the aetiology and pathogenesis of bipolar disorder, indicate the need to re-evaluate our diagnostic classifications, and might eventually pave the way for major improvements in clinical management.
Collapse
Affiliation(s)
- Nick Craddock
- Institute of Psychological Medicine and Clinical Neurosciences, School of Medicine, Cardiff University, Cardiff, UK.
| | | |
Collapse
|
47
|
Spencer JR, Darbyshire KME, Boucher AA, Kashem MA, Long LE, McGregor IS, Karl T, Arnold JC. Novel molecular changes induced by Nrg1 hypomorphism and Nrg1-cannabinoid interaction in adolescence: a hippocampal proteomic study in mice. Front Cell Neurosci 2013; 7:15. [PMID: 23447498 PMCID: PMC3581856 DOI: 10.3389/fncel.2013.00015] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Accepted: 02/06/2013] [Indexed: 02/01/2023] Open
Abstract
Neuregulin 1 (NRG1) is linked to an increased risk of developing schizophrenia and cannabis dependence. Mice that are hypomorphic for Nrg1 (Nrg1 HET mice) display schizophrenia-relevant behavioral phenotypes and aberrant expression of serotonin and glutamate receptors. Nrg1 HET mice also display idiosyncratic responses to the main psychoactive constituent of cannabis, Δ9-tetrahydrocannabinol (THC). To gain traction on the molecular pathways disrupted by Nrg1 hypomorphism and Nrg1-cannabinoid interactions we conducted a proteomic study. Adolescent wildtype (WT) and Nrg1 HET mice were exposed to repeated injections of vehicle or THC and their hippocampi were submitted to 2D gel proteomics. Comparison of WT and Nrg1 HET mice identified proteins linked to molecular changes in schizophrenia that have not been previously associated with Nrg1. These proteins are involved in vesicular release of neurotransmitters such as SNARE proteins; enzymes impacting serotonergic neurotransmission, and proteins affecting growth factor expression. Nrg1 HET mice treated with THC expressed a distinct protein expression signature compared to WT mice. Replicating prior findings, THC caused proteomic changes in WT mice suggestive of greater oxidative stress and neurodegeneration. We have previously observed that THC selectively increased hippocampal NMDA receptor binding of adolescent Nrg1 HET mice. Here we observed outcomes consistent with heightened NMDA-mediated glutamatergic neurotransmission. This included differential expression of proteins involved in NMDA receptor trafficking to the synaptic membrane; lipid raft stabilization of synaptic NMDA receptors; and homeostatic responses to dampen excitotoxicity. These findings uncover novel proteins altered in response to Nrg1 hypomorphism and Nrg1-cannabinoid interactions that improves our molecular understanding of Nrg1 signaling and Nrg1-mediated genetic vulnerability to the neurobehavioral effects of cannabinoids.
Collapse
Affiliation(s)
- Jarrah R Spencer
- Discipline of Pharmacology, University of Sydney Sydney, NSW, Australia ; Brain and Mind Research Institute, University of Sydney Sydney, NSW, Australia
| | | | | | | | | | | | | | | |
Collapse
|
48
|
Alsaif M, Haenisch F, Guest PC, Rahmoune H, Bahn S. Challenges in drug target discovery in bipolar disorder. Expert Opin Ther Targets 2013; 17:565-77. [PMID: 23419165 DOI: 10.1517/14728222.2013.771169] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
INTRODUCTION Misdiagnosis and subsequent inappropriate treatment of patients with bipolar disorder (BD) can worsen their clinical condition and outcome. AREAS COVERED This review focuses on the therapeutic targets which have been implicated in BD, including the glycogen synthase kinase 3 (GSK-3) and phosphoinositide signaling pathways. In addition, evidence is presented for potential new molecular strategies which involve targeting neuropeptide-converting endopeptidases, glutamatergic excitotoxicity, insulin signaling and dysfunctions in mitochondrial metabolism. Current limitations in study design, molecular platforms, preclinical and cellular models in the context of BD drug target discovery, suggest that there are many areas for improvement. EXPERT OPINION For the future outlook, this review outlines the importance of developments such as the use of BD patient-derived cellular models for providing better understanding of the BD etiology and robust translational drug screening tools in combination with developments in the fields of bioinformatics and systems biology.
Collapse
Affiliation(s)
- Murtada Alsaif
- University of Cambridge, Institute of Biotechnology, Department of Chemical Engineering and Biotechnology , Tennis Court Road, Cambridge, CB2 1QT, Cambridgeshire, UK
| | | | | | | | | |
Collapse
|
49
|
Gu L, Long J, Yan Y, Chen Q, Pan R, Xie X, Mao X, Hu X, Wei B, Su L. HTR2A-1438A/G polymorphism influences the risk of schizophrenia but not bipolar disorder or major depressive disorder: a meta-analysis. J Neurosci Res 2013; 91:623-33. [PMID: 23404241 DOI: 10.1002/jnr.23180] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Revised: 10/16/2012] [Accepted: 10/30/2012] [Indexed: 12/22/2022]
Abstract
The incidence of psychiatric disorders has been shown to have a strong genetic component, and we conducted this study to investigate whether the -1438A/G polymorphism of the HTR2A gene was associated with susceptibility to schizophrenia (SZ), bipolar disorder (BD), and major depressive disorder (MDD). Pooled odd ratios (ORs) and 95% confidence intervals (95% CIs) were calculated using data obtained from a total 27 studies that investigated an association between the HTR2A -1438A/G polymorphism and SZ (15), BD (7), and MDD (4). We failed to observe an association between the HTR2A -1438A/G polymorphism and BD and MDD, and we found contrary results with regard to SZ. Our results showed that the -1438A/G polymorphism was a risk factor for SZ, especially in Caucasians (allele model: OR, 1.12; 95% CI, 1.05-1.20; I(2) = 17.3%; dominant model: OR, 1.14; 95% CI, 1.03-1.27; I(2) = 15.3%; recessive model: OR, 1.20; 95% CI, 1.06-1.37; I(2) = 0.0%; codominant model 1: OR, 1.16; 95% CI, 1.01-1.32; I(2) = 0.0%). We found that the association of the HTR2A -1438A/G polymorphism with SZ depends on the ethnic origin of the study population, and this genetic variant does not modify the susceptibility to BD or MDD. © 2013 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Lian Gu
- Department of Internal Neurology, First Affiliated Hospital, Guangxi University of Chinese Medicine, Nanning, Guangxi, People's Republic of China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
50
|
Szczepankiewicz A. Evidence for single nucleotide polymorphisms and their association with bipolar disorder. Neuropsychiatr Dis Treat 2013; 9:1573-82. [PMID: 24143106 PMCID: PMC3798233 DOI: 10.2147/ndt.s28117] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Bipolar disorder (BD) is a complex disorder with a number of susceptibility genes and environmental risk factors involved in its pathogenesis. In recent years, huge progress has been made in molecular techniques for genetic studies, which have enabled identification of numerous genomic regions and genetic variants implicated in BD across populations. Despite the abundance of genetic findings, the results have often been inconsistent and not replicated for many candidate genes/single nucleotide polymorphisms (SNPs). Therefore, the aim of the review presented here is to summarize the most important data reported so far in candidate gene and genome-wide association studies. Taking into account the abundance of association data, this review focuses on the most extensively studied genes and polymorphisms reported so far for BD to present the most promising genomic regions/SNPs involved in BD. The review of association data reveals evidence for several genes (SLC6A4/5-HTT [serotonin transporter gene], BDNF [brain-derived neurotrophic factor], DAOA [D-amino acid oxidase activator], DTNBP1 [dysbindin], NRG1 [neuregulin 1], DISC1 [disrupted in schizophrenia 1]) to be crucial candidates in BD, whereas numerous genome-wide association studies conducted in BD indicate polymorphisms in two genes (CACNA1C [calcium channel, voltage-dependent, L type, alpha 1C subunit], ANK3 [ankyrin 3]) replicated for association with BD in most of these studies. Nevertheless, further studies focusing on interactions between multiple candidate genes/SNPs, as well as systems biology and pathway analyses are necessary to integrate and improve the way we analyze the currently available association data.
Collapse
Affiliation(s)
- Aleksandra Szczepankiewicz
- Laboratory of Molecular and Cell Biology, Poznan University of Medical Sciences, Poznan, Poland ; Department of Psychiatric Genetics, Poznan University of Medical Sciences, Poznan, Poland
| |
Collapse
|