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Pang JY, Wang YP, Teng HM, He J, Luo R, Feng SM, Yue WH, Li HF. Interaction between HTR2A rs3125 and negative life events in suicide attempts among patients with major depressive disorder: a cross-sectional study. BMC Psychiatry 2024; 24:249. [PMID: 38565988 PMCID: PMC10988927 DOI: 10.1186/s12888-024-05713-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 03/25/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND Both genetic and environmental factors play crucial roles in the development of major depressive disorder (MDD) and suicide attempts (SA). However, the interaction between both items remains unknown. This study aims to explore the interactions between the genetic variants of the serotonin 2 A receptor (HTR2A) and the nitric oxide synthase 1 (NOS1) and environmental factors in patients who experience MDD and SA. METHODS A total of 334 patients with MDD and a history of SA (MDD-SA) were recruited alongside 518 patients with MDD with no history of SA (MDD-NSA), and 716 healthy controls (HC). The demographic data and clinical characteristics were collected. Sequenom mass spectrometry was used to detect eight tag-single nucleotide polymorphisms (tagSNPs) in HTR2A (rs1328683, rs17068986, and rs3125) and NOS1 (rs1123425, rs2682826, rs3741476, rs527590, and rs7959232). Generalized multifactor dimensionality reduction (GMDR) was used to analyze the gene-environment interactions. RESULTS Four tagSNPs (rs17068986, rs3125, rs527590, and rs7959232) exhibited significant differences between the three groups. However, these differences were not significant between the MDD-SA and MDD-NSA groups after Bonferroni correction. A logistic regression analysis revealed that negative life events (OR = 1.495, 95%CI: 1.071-2.087, P = 0.018), self-guilt (OR = 2.263, 95%CI: 1.515-3.379, P < 0.001), and negative cognition (OR = 2.252, 95%CI: 1.264-4.013, P = 0.006) were all independently associated with SA in patients with MDD. Furthermore, GMDR analysis indicated a significant interaction between HTR2A rs3125 and negative life events. Negative life events in conjunction with the HTR2A rs3125 CG + GG genotype were associated with a higher SA risk in patients with MDD when compared to the absence of negative life events in conjunction with the CC genotype (OR = 2.547, 95% CI: 1.264-5.131, P = 0.009). CONCLUSION Several risk factors and a potential interaction between HTR2A rs3125 and negative life events were identified in patients with SA and MDD. The observed interaction likely modulates the risk of MDD and SA, shedding light on the pathogenesis of SA in patients with MDD.
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Affiliation(s)
- Jian-Yue Pang
- Department of Psychiatry, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, 450052, Zhengzhou, China
| | - Yi-Ping Wang
- Department of Psychiatry, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, 450052, Zhengzhou, China
| | - Hui-Min Teng
- Department of Psychiatry, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, 450052, Zhengzhou, China
| | - Jin He
- Department of Psychiatry, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, 450052, Zhengzhou, China
| | - Rui Luo
- Department of Psychiatry, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, 450052, Zhengzhou, China
| | - Si-Meng Feng
- Department of Psychiatry, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, 450052, Zhengzhou, China
| | - Wei-Hua Yue
- Peking University Sixth Hospital, Peking University Institute of Mental Health, 100191, Beijing, China.
- National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), 100191, Beijing, China.
- NHC Key Laboratory of Mental Health (Peking University), 100191, Beijing, China.
- PKU-IDG/McGovern Institute for Brain Research, Peking University, 100871, Beijing, China.
- Chinese Institute for Brain Research, Beijing102206, China.
| | - Heng-Fen Li
- Department of Psychiatry, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, 450052, Zhengzhou, China.
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Valenzuela-García LI, Ayala-García VM, Ramos-Rosales DF, Jacquez-Flores RE, Urtiz-Estrada N, Hernández EMM, Barraza-Salas M. The rs7208505 Polymorphism and Differential Expression of the SKA2 Gene in the Prefrontal Cortex of Suicide Victims from the Mexican Population. Arch Suicide Res 2024; 28:674-685. [PMID: 37204142 DOI: 10.1080/13811118.2023.2209155] [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] [Indexed: 05/20/2023]
Abstract
OBJECTIVE The main aim of the current study was to investigate whether SKA2 gene expression in the postmortem brain of rs7208505 genotype are altered in suicide victims from a Mexican population. METHODS In this study, we report a genetic analysis of expression levels of the SKA2 gene in the prefrontal cortex of the postmortem brain of suicidal subjects (n = 22) compared to subjects who died of causes other than suicide (n = 22) in a Mexican population using RT-qPCR assays. Additionally, we genotyped the rs7208505 polymorphism in suicide victims (n = 98) and controls (n = 88) and we evaluate the association of genotypes for the SNP rs7208505 with expression level of SKA2. RESULTS The results showed that the expression of the SKA2 gene was significantly higher in suicide victims compared to control subjects (p = 0.044). Interestingly, we observed a greater proportion of allele A of the rs7208505 in suicide victims than controls. Even though there was no association between the SNP with suicide in the study population we found a significative association of the expression level from SKA2 with the allele A of the rs7208505 and suicide. CONCLUSION The evidence suggests that the expression of SKA2 in the prefrontal cortex may be a critical factor in the etiology of suicidal behavior.
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Massoud S, Salmanian M, Tabibian M, Ghamari R, Tavabe Ghavami TS, Alizadeh F. The contribution of the 5-hydroxytryptamine receptor 2 A gene polymorphisms rs6311 and rs6313 to Schizophrenia in Iran. Mol Biol Rep 2023; 50:2633-2639. [PMID: 36639522 DOI: 10.1007/s11033-022-08222-2] [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: 06/27/2022] [Accepted: 12/19/2022] [Indexed: 01/15/2023]
Abstract
OBJECTIVE Schizophrenia is an acute mental disorder with an undefined etiology. Its high heritability suggests that several genetic variants and polymorphisms may contribute to the severity and emergence of its symptoms. Former molecular evidence has shed some light on the association of serotonergic pathway genetic polymorphisms with schizophrenia. This study aimed to investigate the association between schizophrenia and two SNPs from one haplotype block, which lies in the 5-hydroxytryptamine receptor 2 A (5-HTR2A) gene in the Iranian population. MATERIAL AND METHODS Blood samples were collected from one-hundred and fifty-two patients diagnosed with schizophrenia and one-hundred and fifty-eight cases of the healthy control, who were matched in terms of age and gender. The participants were genotyped for rs6311 and rs6313 using PCR-RFLP. R programming language and Haploview software were respectively leveraged for statistical and haplotype inferencing. RESULTS The results showed that there was no significant association between rs6313 and schizophrenia. However, the rs6311 T allele was independently associated with schizophrenia, and it was significantly associated with SCZ in an rs6311-rs6313 haplotype. Moreover, the general linear model confirmed the potential predictor role of rs6311 for schizophrenia and the C allele of rs6313 demonstrated a higher frequency among females compared to males. CONCLUSION The findings of this study indicated the association of rs6311 and rs6311-rs6313 haplotype with schizophrenia in the Iranian population and also suggested a potential schizophrenia risk predictor role for rs6311.
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Affiliation(s)
- Sareh Massoud
- Department of Genomic Psychiatry and Behavioral Genomics (DGPBG), Roozbeh Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Salmanian
- Department of Medical Genetics and Molecular Biology, Faculty of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Mobina Tabibian
- Department of Cellular and Molecular Biology, Faculty of Life Sciences and Biotechnologies, Shahid Beheshti University, Tehran, Iran
| | - Rana Ghamari
- Department of Genetics, Faculty of Biology, Kharazmi University, Tehran, Iran
| | | | - Fatemeh Alizadeh
- Department of Genomic Psychiatry and Behavioral Genomics (DGPBG), Roozbeh Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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Ermakov PN, Vorobyeva EV, Denisova EG, Yavna DV, Babenko VV, Kovsh EM, Alekseeva DS. Recognition of Emotional and Neutral Visual Scenes in Carriers of the MAOA, COMT, DRD4, and 5HT2A Gene Polymorphisms. PSYCHOLOGY IN RUSSIA: STATE OF ART 2023; 15:159-169. [PMID: 36761718 PMCID: PMC9903230 DOI: 10.11621/pir.2022.0410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 11/21/2022] [Indexed: 02/09/2023] Open
Abstract
Background It is known that some genes regulate neurochemical metabolism, and their polymorphisms affect cognitive performance, including the ability to categorize emotionally significant information. Objective The aim of our study was to analyze the recognition of emotional and neutral visual scenes in carriers of different polymorphic variants of the MAOA, COMT, DRD4, and 5HT2A genes. Design The study sample consisted of 87 university students (Caucasians, women 63%, average age 20.4±2.6 years). The genotypes of the COMT, 5HT2A, and DRD4 genes were determined by polymerase chain reaction. Agarose gel electrophoresis was used to determine the number of tandem repeats of the MAOA gene. Three hundred sixty (360) photographic images of scenes of different emotional valence (positive, negative, and neutral - 120 images for each category) were used as stimuli. These images were classified by expert assessments. The images were presented in a random sequence. The exposure time was 700 ms. The research participants were asked to determine the emotional valence of each scene. Results We found that only the COMT gene genotype affected the recognition of emotional and neutral visual scenes. Carriers of the COMT Val/Val genotype, which causes dopamine to stay in the synaptic space for a shorter time, are better in recognizing and demonstrate higher sensitivity to the emotional content of scenes. Carriers of the Val/Met genotype demonstrated the worst ability to differentiate the emotional valence of visual scenes. Conclusion This study has shown that the length of stay of monoamines in the synaptic space regulated by the COMT gene affects the recognition of emotional visual information.
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Affiliation(s)
| | | | - Ekaterina G. Denisova
- Don State Technical University, Rostov-on-Don, Russia,* Corresponding author. E-mail:
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Popova NK, Tsybko AS, Naumenko VS. The Implication of 5-HT Receptor Family Members in Aggression, Depression and Suicide: Similarity and Difference. Int J Mol Sci 2022; 23:ijms23158814. [PMID: 35955946 PMCID: PMC9369404 DOI: 10.3390/ijms23158814] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 07/21/2022] [Accepted: 08/06/2022] [Indexed: 11/16/2022] Open
Abstract
Being different multifactorial forms of psychopathology, aggression, depression and suicidal behavior, which is considered to be violent aggression directed against the self, have principal neurobiological links: preclinical and clinical evidence associates depression, aggression and suicidal behavior with dysregulation in central serotonergic (5-HT) neurotransmission. The implication of different types of 5-HT receptors in the genetic and epigenetic mechanisms of aggression, depression and suicidality has been well recognized. In this review, we consider and compare the orchestra of 5-HT receptors involved in these severe psychopathologies. Specifically, it concentrates on the role of 5-HT1A, 5-HT1B, 5-HT2A, 5-HT2B, 5-HT2C, 5-HT3 and 5-HT7 receptors in the mechanisms underlying the predisposition to aggression, depression and suicidal behavior. The review provides converging lines of evidence that: (1) depression-related 5-HT receptors include those receptors with pro-depressive properties (5-HT2A, 5-HT3 and 5-HT7) as well as those providing an antidepressant effect (5-HT1A, 5-HT1B, 5-HT2C subtypes). (2) Aggression-related 5-HT receptors are identical to depression-related 5-HT receptors with the exception of 5-HT7 receptors. Activation of 5-HT1A, 5-HT1B, 5-HT2A, 5-HT2C receptors attenuate aggressiveness, whereas agonists of 5-HT3 intensify aggressive behavior.
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Ramos-Rosales D, Méndez-Hernández E, Salas-Pacheco J, Salas-Leal A, Urtiz-Estrada N, Barraza-Salas M. Differential Expression of HTR2A and MAOA Genes in the Prefrontal Cortex and Hypothalamus of Suicide Victims from Mexican Population. Neurosci Lett 2022; 778:136611. [DOI: 10.1016/j.neulet.2022.136611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 03/23/2022] [Accepted: 03/28/2022] [Indexed: 11/16/2022]
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Ramos-Rosales DF, Vazquez-Alaniz F, Urtiz-Estrada N, Ramirez-Valles EG, Mendez-Hernádez EM, Salas-Leal AC, Barraza-Salas M. Epigenetic marks in suicide: a review. Psychiatr Genet 2021; 31:145-161. [PMID: 34412082 DOI: 10.1097/ypg.0000000000000297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Suicide is a complex phenomenon and a global public health problem that involves several biological factors that could contribute to the pathophysiology of suicide. There is evidence that epigenetic factors influence some psychiatric disorders, suggesting a predisposition to suicide or suicidal behavior. Here, we review studies of molecular mechanisms of suicide in an epigenetic perspective in the postmortem brain of suicide completers and peripheral blood cells of suicide attempters. Besides, we include studies of gene-specific DNA methylation, epigenome-wide association, histone modification, and interfering RNAs as epigenetic factors. This review provides an overview of the epigenetic mechanisms described in different biological systems related to suicide, contributing to an understanding of the genetic regulation in suicide. We conclude that epigenetic marks are potential biomarkers in suicide, and they could become attractive therapeutic targets due to their reversibility and importance in regulating gene expression.
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Affiliation(s)
| | - Fernando Vazquez-Alaniz
- Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango
- Hospital General 450. Servicios de Salud de Durango
| | | | | | - Edna M Mendez-Hernádez
- Instituto de Investigación Científica, Universidad Juárez del Estado de Durango, Durango, México
| | - Alma C Salas-Leal
- Instituto de Investigación Científica, Universidad Juárez del Estado de Durango, Durango, México
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8
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Yan P, Gao B, Wang S, Wang S, Li J, Song M. Association of 5-HTR2A -1438A/G polymorphism with anorexia nervosa and bulimia nervosa: A meta-analysis. Neurosci Lett 2021; 755:135918. [PMID: 33940056 DOI: 10.1016/j.neulet.2021.135918] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 04/20/2021] [Accepted: 04/21/2021] [Indexed: 01/11/2023]
Abstract
Although a number of studies have been conducted on the association of -1438A/G polymorphism in serotonin 2A receptor (5-HTR2A) gene with anorexia nervosa (AN) and bulimia nervosa (BN), the results remained inconsistent. We thus performed a meta-analysis to clarify the effects of -1438A/G polymorphism on the risk of AN and BN. PubMed, Embase, the Cochrane Library, CNKI, Weipu and Wanfang databases were searched for eligible studies. Pooled odds ratio (OR) and 95 % confidence interval (CI) were calculated to estimate the strength of the association. Subgroup analysis was also performed by ethnicity. In total, 17 studies were included for the meta-analysis, of which 15 studies containing 2028 cases and 2725 controls were used for AN analysis and 7 studies containing 505 cases and 1129 controls for BN analysis. The results showed -1438A/G polymorphism was significantly associated with the risk of AN in four genetic models (allele model, A vs. G: OR = 1.31, 95 % CI = 1.11-1.64, P = 0.003; recessive model, AA vs. GA + GG: OR = 1.69, 95 % CI = 1.28-2.23, P = 0.000; dominant model, AA + GA vs. GG: OR = 1.35, 95 % CI = 1.02-1.79, P = 0.037; co-dominant model, AA vs. GG: OR = 1.94, 95 % CI = 1.29-2.92, P = 0.002) in Caucasians, but not in Asians. We failed to observe a significant association between -1438A/G polymorphism and the risk of BN either in overall or in Caucasian population. The present meta-analysis indicated that A allele and AA genotype of 5-HTR2A -1438A/G polymorphism may contribute to higher risk of AN, especially in Caucasians. However, this polymorphism was not associated with the susceptibility to BN.
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Affiliation(s)
- Pan Yan
- Molecular Biology Laboratory, Affiliated Mental Health Center & Hangzhou Seventh People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310013, China
| | - Bing Gao
- Department of Health Hazard Monitoring, Hangzhou Center for Disease Control and Prevention, Hangzhou, 310021, China
| | - Shuqi Wang
- Molecular Biology Laboratory, Affiliated Mental Health Center & Hangzhou Seventh People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310013, China
| | - Shengdong Wang
- Molecular Biology Laboratory, Affiliated Mental Health Center & Hangzhou Seventh People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310013, China
| | - Jing Li
- Molecular Biology Laboratory, Affiliated Mental Health Center & Hangzhou Seventh People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310013, China
| | - Mingfen Song
- Molecular Biology Laboratory, Affiliated Mental Health Center & Hangzhou Seventh People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310013, China.
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Qadeer MI, Amar A, Huang YY, Min E, Galfalvy H, Hasnain S, Mann JJ. Association of serotonin system-related genes with homicidal behavior and criminal aggression in a prison population of Pakistani Origin. Sci Rep 2021; 11:1670. [PMID: 33462318 PMCID: PMC7813852 DOI: 10.1038/s41598-021-81198-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 11/26/2020] [Indexed: 12/27/2022] Open
Abstract
The serotonin transporter (SLC6A4), 5-HT2A (HTR2A) and 5-HT2B (HTR2B) recepter genes, express proteins that are important regulators of serotonin reuptake and signaling, and thereby may contribute to the pathogenesis of aggressive criminal behavior. 370 sentenced murderers in Pakistani prisons and 359 men without any history of violence or criminal delinquency were genotyped for six candidate polymorphisms in SLC6A4, HTR2A and HTR2B genes. An association of higher expressing L/L and LA/LA variants of the 5-HTTLPR polymorphism was observed with homicidal behavior (bi-allelic: OR = 1.29, p = 0.016, tri-allelic: OR = 1.32, p = 0.015) and in the murderer group only with response to verbal abuse (OR = 2.11, p = 0.015), but not with other measures of self-reported aggression. L/L and LA/LA genotypes of the 5-HTTLPR polymorphism were associated with higher aggression scores on STAX1 scale of aggression compared to lower expressing genotypes (S/S, S/LG, LG/LG) in prison inmates. No associations were apparent for other serotonergic gene polymorphisms analyzed. Using the Braineac and GTEx databases, we demonstrated significant eQTL based functional effects for rs25531 in HTTLPR and other serotonergic polymorphisms analyzed in different brain regions and peripheral tissues. In conclusion, these findings implicate SLC6A4* HTTLPR as a major genetic determinant associated with criminal aggression. Future studies are needed to replicate this finding and establish the biologic intermediate phenotypes mediating this relationship.
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Affiliation(s)
- Muhammad Imran Qadeer
- Department of Microbiology and Molecular Genetics, University of the Punjab, Khyaban-e-Jamia Punjab, Lahore, 54600, Pakistan. .,Division of Molecular Imaging and Neuropathology, Department of Psychiatry, New York State Psychiatric Institute, Columbia University, New York, NY, USA.
| | - Ali Amar
- Department of Human Genetics and Molecular Biology, University of Health Sciences, Lahore, Pakistan
| | - Yung-Yu Huang
- Division of Molecular Imaging and Neuropathology, Department of Psychiatry, New York State Psychiatric Institute, Columbia University, New York, NY, USA
| | - Eli Min
- Division of Molecular Imaging and Neuropathology, Department of Psychiatry, New York State Psychiatric Institute, Columbia University, New York, NY, USA
| | - Hanga Galfalvy
- Mental Health Data Science Division, Department of Psychiatry, Columbia University, New York, NY, USA
| | - Shahida Hasnain
- Department of Microbiology and Molecular Genetics, University of the Punjab, Khyaban-e-Jamia Punjab, Lahore, 54600, Pakistan
| | - J John Mann
- Division of Molecular Imaging and Neuropathology, Department of Psychiatry, New York State Psychiatric Institute, Columbia University, New York, NY, USA
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Cheung S, Woo J, Maes MS, Zai CC. Suicide epigenetics, a review of recent progress. J Affect Disord 2020; 265:423-438. [PMID: 32090769 DOI: 10.1016/j.jad.2020.01.040] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 11/17/2019] [Accepted: 01/11/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND Suicide results in over 800,000 deaths every year, making it a major public health concern worldwide. It is highly complex, with genetic and environmental influences. Epigenetic mechanisms, including DNA methylation, miRNA, and histone modifications, could explain the complex interplay of environmental risk factors with genetic risk factors in the emergence of suicidal behavior. METHODS Here, we review the literature on suicide epigenetics over the past 10 years. RESULTS There has been significant progress in the field of suicide epigenetics, with emerging findings in the brain-derived neurotrophic factor and hypothalamic-pituitary-adrenal axis genes. LIMITATIONS Studying patient subgroups is needed in order to extract more comparable and reproducible epigenetic findings in suicide. CONCLUSIONS It is crucial to consider suicidal patients or suicide victims' distal and proximal past history e.g., early-life adversity and psychiatric disorder in epigenetic studies of suicidality.
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Affiliation(s)
- Serina Cheung
- Neurogenetics Section, Tanenbaum Centre for Pharmacogenetics, Molecular Brain Science, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Canada
| | - Julia Woo
- Neurogenetics Section, Tanenbaum Centre for Pharmacogenetics, Molecular Brain Science, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Canada; Faculty of Medicine, University of Toronto, Canada
| | - Miriam S Maes
- Neurogenetics Section, Tanenbaum Centre for Pharmacogenetics, Molecular Brain Science, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Canada
| | - Clement C Zai
- Neurogenetics Section, Tanenbaum Centre for Pharmacogenetics, Molecular Brain Science, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Canada; Division of Brain and Therapeutics, Department of Psychiatry, University of Toronto, Canada; Institute of Medical Science, University of Toronto, Canada; Laboratory Medicine and Pathobiology, University of Toronto, Canada; Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA.
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Shao X, Zhu G. Associations Among Monoamine Neurotransmitter Pathways, Personality Traits, and Major Depressive Disorder. Front Psychiatry 2020; 11:381. [PMID: 32477180 PMCID: PMC7237722 DOI: 10.3389/fpsyt.2020.00381] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Accepted: 04/16/2020] [Indexed: 12/13/2022] Open
Abstract
Major depressive disorder (MDD) is a complex psychiatric disease requiring multidisciplinary approaches to identify specific risk factors and establish more efficacious treatment strategies. Although the etiology and pathophysiology of MDD are not clear until these days, it is acknowledged that they are almost certainly multifactorial and comprehensive. Monoamine neurotransmitter system dysfunction and specific personality traits are independent risk factors for depression and suicide. These factors also demonstrate complex interactions that influence MDD pathogenesis and symptom expression. In this review, we assess these relationships with the aim of providing a reference for the development of precision medicine.
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Affiliation(s)
- Xiaojun Shao
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Gang Zhu
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, China.,Central Laboratory, The First Affiliated Hospital of China Medical University, Shenyang, China
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Genome-wide significant regions in 43 Utah high-risk families implicate multiple genes involved in risk for completed suicide. Mol Psychiatry 2020; 25:3077-3090. [PMID: 30353169 PMCID: PMC6478563 DOI: 10.1038/s41380-018-0282-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 07/31/2018] [Accepted: 09/26/2018] [Indexed: 12/31/2022]
Abstract
Suicide is the 10th leading cause of death in the United States. Although environment has undeniable impact, evidence suggests that genetic factors play a significant role in completed suicide. We linked a resource of ~ 4500 DNA samples from completed suicides obtained from the Utah Medical Examiner to genealogical records and medical records data available on over eight million individuals. This linking has resulted in the identification of high-risk extended families (7-9 generations) with significant familial risk of completed suicide. Familial aggregation across distant relatives minimizes effects of shared environment, provides more genetically homogeneous risk groups, and magnifies genetic risks through familial repetition. We analyzed Illumina PsychArray genotypes from suicide cases in 43 high-risk families, identifying 30 distinct shared genomic segments with genome-wide evidence (p = 2.02E-07-1.30E-18) of segregation with completed suicide. The 207 genes implicated by the shared regions provide a focused set of genes for further study; 18 have been previously associated with suicide risk. Although PsychArray variants do not represent exhaustive variation within the 207 genes, we investigated these for specific segregation within the high-risk families, and for association of variants with predicted functional impact in ~ 1300 additional Utah suicides unrelated to the discovery families. None of the limited PsychArray variants explained the high-risk family segregation; sequencing of these regions will be needed to discover segregating risk variants, which may be rarer or regulatory. However, additional association tests yielded four significant PsychArray variants (SP110, rs181058279; AGBL2, rs76215382; SUCLA2, rs121908538; APH1B, rs745918508), raising the likelihood that these genes confer risk of completed suicide.
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13
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Dong M, Zeng LN, Lu L, Li XH, Ungvari GS, Ng CH, Chow IHI, Zhang L, Zhou Y, Xiang YT. Prevalence of suicide attempt in individuals with major depressive disorder: a meta-analysis of observational surveys. Psychol Med 2019; 49:1691-1704. [PMID: 30178722 DOI: 10.1017/s0033291718002301] [Citation(s) in RCA: 121] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
BACKGROUND Suicide attempt (SA), which is one of the strongest predictors of completed suicide, is common in major depressive disorder (MDD) but its prevalence across epidemiological studies has been mixed. The aim of this comprehensive meta-analysis was to examine the pooled prevalence of SA in individuals with MDD. METHODS A systematic literature search was conducted in PubMed, Embase, PsycINFO, Web of Science and Cochrane Library from their commencement date until 27 December 2017. Original studies containing data on prevalence of SA in individuals with MDD were analyzed. RESULTS In all, 65 studies with a total of 27 340 individuals with MDD were included. Using the random effects model, the pooled lifetime prevalence of SA was 31% [95% confidence interval (CI) 27-34%], 1-year prevalence was 8% (95% CI 3-14%) and 1-month prevalence was 24% (95% CI 15-34%). Subgroup analyses revealed that the lifetime prevalence of SA was significantly associated with the patient setting, study region and income level, while the 1-month prevalence of SA was associated with only the patient setting. CONCLUSION This meta-analysis confirmed that SA was common in individuals with MDD across the world. Careful screening and appropriate interventions should be implemented for SA in the MDD population.
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Affiliation(s)
- Min Dong
- Unit of Psychiatry,Faculty of Health Sciences,University of Macau,Macao SAR,China
| | - Liang-Nan Zeng
- Department of Neurosurgery,The Affiliated Hospital of Southwest Medical University,Luzhou,China
| | - Li Lu
- Unit of Psychiatry,Faculty of Health Sciences,University of Macau,Macao SAR,China
| | - Xiao-Hong Li
- The National Clinical Research Center for Mental Disorders, China & Center of Depression, Beijing Institute for Brain Disorders & Mood Disorders Center, Beijing Anding Hospital, Capital Medical University,Beijing,China
| | - Gabor S Ungvari
- University of Notre Dame Australia/Marian Centre,Perth,Australia
| | - Chee H Ng
- Department of Psychiatry,University of Melbourne,Melbourne, Victoria,Australia
| | - Ines H I Chow
- Unit of Psychiatry,Faculty of Health Sciences,University of Macau,Macao SAR,China
| | - Ling Zhang
- Department of Epidemiology and Health Statistics,School of Public Health, Capital Medical University & Beijing Municipal Key Laboratory of Clinical Epidemiology,Beijing,China
| | - Yuan Zhou
- CAS Key Laboratory of Behavioral Science & Magnetic Resonance Imaging Research Center, Institute of Psychology, Chinese Academy of Sciences,Beijing,China
| | - Yu-Tao Xiang
- Unit of Psychiatry,Faculty of Health Sciences,University of Macau,Macao SAR,China
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Genis-Mendoza AD, Ruiz-Ramos D, López-Narvaez ML, Tovilla-Zárate CA, Rosa García A, Cortes Meda G, Martinez-Magaña JJ, González-Castro TB, Juárez-Rojop IE, Nicolini H. Genetic association analysis of 5-HTR2A gene variants in eating disorders in a Mexican population. Brain Behav 2019; 9:e01286. [PMID: 31199591 PMCID: PMC6625474 DOI: 10.1002/brb3.1286] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 03/06/2019] [Accepted: 03/15/2019] [Indexed: 02/02/2023] Open
Abstract
INTRODUCTION The 5-HTR2A gene has been implicated as candidate gene for eating disorders. The aim of the present study was to analyze the association of rs6311 and rs6313 polymorphisms of 5-HTR2A gene with eating disorders in Mexican population, and to evaluate if the polymorphisms of 5-HTR2A gene were associated with comorbidities in eating behavior. METHODS We conducted a case-control analysis with 460 subjects. We included 168 patients with eating disorders and 292 controls; two polymorphisms of 5-HTR2A gene were genotyped. We assessed the association by allele, genotype, and inheritance models. Psychiatric comorbidities were analyzed by genotype in patients with eating disorders. RESULTS We found an association between rs6311 and eating disorders in a Mexican population by allele (OR = 8.09; 95% CI = 5.99-11.03; p = 2.2e-16) and genotype (OR = 76.14; 95% CI = 35.61-177.18; p = 2.2e-16). Individuals who carried GG genotype showed increased risk for suicide attempted (OR = 2.14; CI = 1.10-4.26; p = 0.035) as comorbidity associated with eating disorders. No positive associations were observed for rs6313 polymorphism. CONCLUSION Our results showed an association of rs6311 (A1438G) polymorphism of 5-HTR2A gene with eating disorders, and these polymorphic variants could increase the risk of psychiatric comorbidities. However, more studies are required to replicate the results and to reach to a conclusive association between eating disorders and rs6311.
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Affiliation(s)
| | - David Ruiz-Ramos
- División Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tabasco, México
| | | | - Carlos Alfonso Tovilla-Zárate
- División Académica Multidisciplinaria de Comalcalco, Universidad Juárez Autónoma de Tabasco, Comalcalco, Tabasco, México
| | - Ana Rosa García
- Hospital Psiquiátrico Infantil Juan N Navarro, Secretaría de Salud, Ciudad de México, México
| | - Gabriela Cortes Meda
- Hospital Psiquiátrico Infantil Juan N Navarro, Secretaría de Salud, Ciudad de México, México
| | | | - Thelma Beatriz González-Castro
- División Académica Multidisciplinaria de Jalpa de Méndez, Universidad Juárez Autónoma de Tabasco, Jalpa de Méndez, Tabasco, México
| | - Isela Esther Juárez-Rojop
- División Académica Multidisciplinaria de Jalpa de Méndez, Universidad Juárez Autónoma de Tabasco, Jalpa de Méndez, Tabasco, México
| | - Humberto Nicolini
- Instituto Nacional de Medicina Genómica (INMEGEN), Ciudad de México, México
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Abstract
AIMS Suicide-related behaviours are common in schizophrenia and are significantly associated with premature death. The objective of this meta-analysis study was to estimate the pooled prevalence of suicide-related behaviours in schizophrenia patients in China. METHODS The relevant literature was searched systematically via the relevant electronic databases (PubMed, Embase, PsycINFO, Chinese National Knowledge Infrastructure, Wanfang Databases and Chinese Biological Medical Literature Database) from their inception until 14 September 2016. Only original studies that reported the prevalence of suicide-related behaviours including suicidal ideation (SI), suicide plan, suicide attempt (SA) and completed suicide were selected. RESULTS Nineteen articles met the inclusion criteria and were analysed. The pooled lifetime prevalence of SI and SA were 25.8% (95% CI 14.7-41.1%) and 14.6% (95% CI 9.1-22.8%), respectively. The 1-month prevalence of SI was 22.0% (95% CI 18.2-26.4%). Subgroup analyses of lifetime SI and SA showed that gender, sample size, survey year, study location and source of patients have no significant mediating effects on the results. CONCLUSIONS Suicide-related behaviours are common in Chinese schizophrenia patients. Due to the high mortality risk, regular screening and effective suicide prevention programmes are warranted.
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16
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González-Castro TB, Genis-Mendoza AD, Tovilla-Zárate CA, Martínez-Magaña JJ, Juárez-Rojop IE, Sarmiento E, Nicolini H. Genome-wide association study of suicide attempt in a Mexican population: a study protocol. BMJ Open 2019; 9:e025335. [PMID: 30975676 PMCID: PMC6500275 DOI: 10.1136/bmjopen-2018-025335] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
INTRODUCTION Suicidality is a complex behaviour and a major health problem; the specific features that could predispose to suicidal behaviour have been extensively investigated, most frequently in European and Asian populations. Therefore, our aim is to present a protocol that will explore suicide attempt in Mexican individuals diagnosed with psychiatric disorders, through a genome-wide association study (GWAS). METHOD AND ANALYSIS We will perform a GWAS by comparing 700 individuals who have suicide attempt history, with control subjects without suicide attempt history (n=500). The genotyping will be conducted using the Infinium PsychArray BeadChip and quality controls will be applied to single nucleotides (SNPs) genotyped. After that, we will perform the imputation using reference panels provided by the Haplotype Reference Consortium. We will perform two different workflows: (A) the classic GWAS analysis applying the same weight to all the variants and (B) an algorithm with prediction of deleteriousness of variants. ETHICS AND DISSEMINATION This study was approved by the ethics and investigation committees of the National Institute of Genomic Medicine on 22 July 2015, No CEI 215/13. We plan to disseminate research findings in scientific conferences and as a manuscript in peer-reviewed journals. TRIAL REGISTRATION NUMBER CEI 215/13.
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Affiliation(s)
- Thelma Beatriz González-Castro
- División Académica Multidisciplinaria de Jalpa de Méndez, Universidad Juárez Autónoma de Tabasco, Jalpa de Méndez, Mexico
| | - Alma Delia Genis-Mendoza
- Laboratorio de Genomica de Enfermedades Psiquiatrica y Neurodegenerativas, Instituto Nacional de Medicina Genomica, Mexico, Mexico
| | - Carlos Alfonso Tovilla-Zárate
- División Académica Multidisciplinaria de Comalcalco, Universidad Juárez Autónoma de Tabasco, División Multidisciplinaria de Comalcalco, Comalcalco, Mexico
| | - José Jaime Martínez-Magaña
- Laboratorio de Genomica de Enfermedades Psiquiatrica y Neurodegenerativas, Instituto Nacional de Medicina Genomica, Mexico, Mexico
- División Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco, Villahermosa, Mexico
| | - Isela Esther Juárez-Rojop
- División Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco, Villahermosa, Mexico
| | - Emmanuel Sarmiento
- Urgencias y Pre-consulta, Hospital Psiquiátrico Infantil Dr. Juan N. Navarro, Ciudad de Mexico, Mexico
| | - Humberto Nicolini
- Laboratorio de Genomica de Enfermedades Psiquiatrica y Neurodegenerativas, Instituto Nacional de Medicina Genomica, Mexico, Mexico
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17
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González-Castro TB, Pool-García S, Tovilla-Zárate CA, Juárez-Rojop IE, López-Narváez ML, Frésan A, Genis-Mendoza AD, Pérez-Hernández N, Nicolini H. Association between BDNF Val66Met polymorphism and generalized anxiety disorder and clinical characteristics in a Mexican population: A case-control study. Medicine (Baltimore) 2019; 98:e14838. [PMID: 30882674 PMCID: PMC6426483 DOI: 10.1097/md.0000000000014838] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 12/11/2018] [Accepted: 02/19/2019] [Indexed: 11/25/2022] Open
Abstract
The aim of the present case-control study was to explore the association between BDNF Val66Met (rs6265) polymorphism and generalized anxiety disorder in Mexican individuals, and whether this polymorphism plays a role in the symptomatology of anxiety.A total of 212 subjects were included in the study. Around 75 patients with generalized anxiety disorder were diagnosed by psychiatrists based on the DSM-IV instrument and 137 unrelated subjects psychiatrically healthy were used as comparison group. The subclinical symptomatology in patients was assessed with the State-Trait Anxiety Inventory. BDNF rs6265 genotypes were analyzed using the polymerase chain reaction end-point method.The association between BDNF Val66Met with the risk for generalized anxiety disorder was evaluated using 4 inheritance models. The present study showed that carrying the Met allele confers increased risk for the presence of generalized anxiety disorder (χ = 4.7, P = .03; OR (95%) 1.96 (1.05-3.56)) when patients with generalized anxiety disorder were compared with the comparison group.Our results provide evidence of an association between the Val66Met polymorphism of the BDNF gene and generalized anxiety disorder in a Mexican population. However, no association was observed between this polymorphism and the symptomatology of anxiety.
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Affiliation(s)
- Thelma Beatriz González-Castro
- División Académica Multidisciplinaria de Jalpa de Méndez, Universidad Juárez Autónoma de Tabasco, Jalpa de Méndez, Tabasco, México
| | | | - Carlos Alfonso Tovilla-Zárate
- División Académica Multidisciplinaria de Comalcalco, Universidad Juárez Autónoma de Tabasco, Comalcalco, Tabasco, México
| | - Isela Esther Juárez-Rojop
- División Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tabasco, México
| | - María Lilia López-Narváez
- Hospital General de Yajalón “Dr. Manuel Velazco Suarez”, Secretaría de Salud, Yajalón, Chiapas, México
| | - Ana Frésan
- Subdirección de Investigaciones Clínicas, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Ciudad de México, México
| | - Alma Delia Genis-Mendoza
- Servicios de Atención Psiquiátrica (SAP), Instituto Nacional de Medicina Genómica (INMEGEN), Ciudad de México, México
| | - Nonanzit Pérez-Hernández
- Departamento de Biología Molecular, Instituto Nacional de Cardiología Ignacio Chávez, Ciudad de México, México
| | - Humberto Nicolini
- Servicios de Atención Psiquiátrica (SAP), Instituto Nacional de Medicina Genómica (INMEGEN), Ciudad de México, México
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18
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Sina M, Ahmadiani A, Asadi S, Shams J. Association of serotonin receptor 2a haplotypes with obsessive-compulsive disorder and its treatment response in Iranian patients: a genetic and pharmacogenetic study. Neuropsychiatr Dis Treat 2018; 14:1199-1209. [PMID: 29785111 PMCID: PMC5953306 DOI: 10.2147/ndt.s163946] [Citation(s) in RCA: 4] [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] [Indexed: 11/23/2022] Open
Abstract
INTRODUCTION Obsessive-compulsive disorder (OCD) is a debilitating psychiatric disorder causing intrusive thoughts or repetitive behaviors. Serotonin reuptake inhibitors are used for OCD treatment, but 40%-60% of patients do not respond to them adequately. In this study, the associations of serotonin receptor 2a polymorphisms rs6311 and rs6313 with OCD, its familial form and fluvoxamine treatment response in Iranian population were investigated. PATIENTS AND METHODS Association analyses were conducted in 293 OCD cases fulfilling the Diagnostic and Statistical Manual of Mental Disorders (DSM)-IV-TR and 245 controls. Pharmacotherapy was defined as 12 weeks of treatment with fluvoxamine (150-300 mg). Treatment response was considered as >25% reduction in Yale-Brown Obsessive Compulsive Scale score. Genotyping was performed by means of PCR-RFLP. RESULTS The results showed no association of rs6311 or rs6313 with OCD, but their haplotypes had different distribution patterns in cases and controls. Moreover, rs6313 was associated with the familial form of OCD in females significantly (P=0.005) under the recessive genetic model. Moreover, rs6311-rs6313 haplotypes were associated with fluvoxamine treatment response in OCD patients with more AC and less AT in responders. CONCLUSION HTR2A haplotypes are associated with OCD and its treatment response with a fluvoxamine in Iranian patients. Furthermore, the observed association of rs6313 with the familial form of OCD in females suggests different genetic background of OCD familial and non-familial forms, which needs further investigation.
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Affiliation(s)
- Marzie Sina
- Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abolhassan Ahmadiani
- Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sareh Asadi
- NeuroBiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Jamal Shams
- Behavioral Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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19
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Silva TO, Jung I, Trott A, Bica CG, Casarin JN, Fortuna PC, Ribeiro EE, de Assis FD, Figueira GC, Barbisan F, Fernanda Manica-Cattani M, Bonadiman BSR, Houenou LJ, Prado-Lima PASD, da Cruz IBM. Association between T102C 5-HT2A receptor gene polymorphism and 5-year mortality risk among Brazilian Amazon riparian elderly population. Am J Hum Biol 2017; 29. [PMID: 28488759 DOI: 10.1002/ajhb.23016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 01/16/2017] [Accepted: 04/17/2017] [Indexed: 01/30/2023] Open
Abstract
OBJECTIVE Serotonin (5-HT) is a pleiotropic molecule that exerts several functions on brain and peripheral tissues via different receptors. The gene for the 5-HT2A receptor shows some variations, including a T102C polymorphism, that have been associated with increased risk of neuropsychiatric and vascular disorders. However, the potential impact of 5-HT2A imbalance caused by genetic variations on the human lifespan has not yet been established. METHODS We performed a prospective study involving an Amazon riparian elderly free-living population in Maués City, Brazil, with a 5-year follow-up. Out of a cohort of 637 subjects selected in July, 2009, we genotyped 471 individuals, including 209 males (44.4%) and 262 females (55.6%), all averaging 72.3 ± 7.8 years of age (ranging from 60 to 100 years). RESULTS The T102C-SNP genotypic frequencies were 14.0% TT, 28.0% CC, and 58.0% CT. From 80 elderly individuals who died during the period investigated, we observed significantly (P = .005) higher numbers of TT carriers (27.3%) and CC carriers (21.2%), compared to heterozygous CT carriers (12.5%). Cox-regression analysis showed that association between the T102C-SNP and elderly survival was independent of age, sex, and other health variables. CONCLUSIONS Our findings strongly suggest that imbalance in 5-HT2A may cause significant disturbances that lead to an increased susceptibility to death for individuals who are over 60 years of age.
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Affiliation(s)
- Tális O Silva
- Programa de Pós-Graduação em Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Rio Grande do Sul, Brazil
| | - Ivo Jung
- Programa de Pós-Graduação em Farmacologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Rio Grande do Sul, Brazil
| | - Alexis Trott
- Programa de Pós-Graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Rio Grande do Sul, Brazil
| | - Cláudia G Bica
- Programa de Pós-Graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Rio Grande do Sul, Brazil
| | - Jeferson N Casarin
- Laboratory of Molecular Aspects Associated with Genetic Diseases, University of Western Santa Catarina, Unoesc, Brazil
| | - Paola C Fortuna
- Laboratory of Molecular Aspects Associated with Genetic Diseases, University of Western Santa Catarina, Unoesc, Brazil
| | - Euler E Ribeiro
- Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
| | - Fernanda D de Assis
- Laboratório de Biogenômica, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Rio Grande do Sul, Brazil
| | - Guilherme C Figueira
- Laboratório de Biogenômica, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Rio Grande do Sul, Brazil
| | - Fernanda Barbisan
- Programa de Pós-Graduação em Farmacologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Rio Grande do Sul, Brazil
| | - Maria Fernanda Manica-Cattani
- Programa de Pós-Graduação em Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Rio Grande do Sul, Brazil
| | - Beatriz S R Bonadiman
- Programa de Pós-Graduação em Farmacologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Rio Grande do Sul, Brazil
| | - Lucien J Houenou
- Biotechnology Department, Forsyth Technical Community College, 2100 Silas Creek Parkway, Winston-Salem, North Carolina, 27103, USA
| | | | - Ivana B M da Cruz
- Programa de Pós-Graduação em Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Rio Grande do Sul, Brazil.,Programa de Pós-Graduação em Farmacologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Rio Grande do Sul, Brazil.,Laboratório de Biogenômica, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Rio Grande do Sul, Brazil
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20
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Niculescu AB, Le-Niculescu H, Levey DF, Phalen PL, Dainton HL, Roseberry K, Niculescu EM, Niezer JO, Williams A, Graham DL, Jones TJ, Venugopal V, Ballew A, Yard M, Gelbart T, Kurian SM, Shekhar A, Schork NJ, Sandusky GE, Salomon DR. Precision medicine for suicidality: from universality to subtypes and personalization. Mol Psychiatry 2017; 22:1250-1273. [PMID: 28809398 PMCID: PMC5582166 DOI: 10.1038/mp.2017.128] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 05/04/2017] [Accepted: 05/08/2017] [Indexed: 01/15/2023]
Abstract
Suicide remains a clear, present and increasing public health problem, despite being a potentially preventable tragedy. Its incidence is particularly high in people with overt or un(der)diagnosed psychiatric disorders. Objective and precise identification of individuals at risk, ways of monitoring response to treatments and novel preventive therapeutics need to be discovered, employed and widely deployed. We sought to investigate whether blood gene expression biomarkers for suicide (that is, a 'liquid biopsy' approach) can be identified that are more universal in nature, working across psychiatric diagnoses and genders, using larger cohorts than in previous studies. Such markers may reflect and/or be a proxy for the core biology of suicide. We were successful in this endeavor, using a comprehensive stepwise approach, leading to a wealth of findings. Steps 1, 2 and 3 were discovery, prioritization and validation for tracking suicidality, resulting in a Top Dozen list of candidate biomarkers comprising the top biomarkers from each step, as well as a larger list of 148 candidate biomarkers that survived Bonferroni correction in the validation step. Step 4 was testing the Top Dozen list and Bonferroni biomarker list for predictive ability for suicidal ideation (SI) and for future hospitalizations for suicidality in independent cohorts, leading to the identification of completely novel predictive biomarkers (such as CLN5 and AK2), as well as reinforcement of ours and others previous findings in the field (such as SLC4A4 and SKA2). Additionally, we examined whether subtypes of suicidality can be identified based on mental state at the time of high SI and identified four potential subtypes: high anxiety, low mood, combined and non-affective (psychotic). Such subtypes may delineate groups of individuals that are more homogenous in terms of suicidality biology and behavior. We also studied a more personalized approach, by psychiatric diagnosis and gender, with a focus on bipolar males, the highest risk group. Such a personalized approach may be more sensitive to gender differences and to the impact of psychiatric co-morbidities and medications. We compared testing the universal biomarkers in everybody versus testing by subtypes versus personalized by gender and diagnosis, and show that the subtype and personalized approaches permit enhanced precision of predictions for different universal biomarkers. In particular, LHFP appears to be a strong predictor for suicidality in males with depression. We also directly examined whether biomarkers discovered using male bipolars only are better predictors in a male bipolar independent cohort than universal biomarkers and show evidence for a possible advantage of personalization. We identified completely novel biomarkers (such as SPTBN1 and C7orf73), and reinforced previously known biomarkers (such as PTEN and SAT1). For diagnostic ability testing purposes, we also examined as predictors phenotypic measures as apps (for suicide risk (CFI-S, Convergent Functional Information for Suicidality) and for anxiety and mood (SASS, Simplified Affective State Scale)) by themselves, as well as in combination with the top biomarkers (the combination being our a priori primary endpoint), to provide context and enhance precision of predictions. We obtained area under the curves of 90% for SI and 77% for future hospitalizations in independent cohorts. Step 5 was to look for mechanistic understanding, starting with examining evidence for the Top Dozen and Bonferroni biomarkers for involvement in other psychiatric and non-psychiatric disorders, as a mechanism for biological predisposition and vulnerability. The biomarkers we identified also provide a window towards understanding the biology of suicide, implicating biological pathways related to neurogenesis, programmed cell death and insulin signaling from the universal biomarkers, as well as mTOR signaling from the male bipolar biomarkers. In particular, HTR2A increase coupled with ARRB1 and GSK3B decreases in expression in suicidality may provide a synergistic mechanistical corrective target, as do SLC4A4 increase coupled with AHCYL1 and AHCYL2 decrease. Step 6 was to move beyond diagnostics and mechanistical risk assessment, towards providing a foundation for personalized therapeutics. Items scored positive in the CFI-S and subtypes identified by SASS in different individuals provide targets for personalized (psycho)therapy. Some individual biomarkers are targets of existing drugs used to treat mood disorders and suicidality (lithium, clozapine and omega-3 fatty acids), providing a means toward pharmacogenomics stratification of patients and monitoring of response to treatment. Such biomarkers merit evaluation in clinical trials. Bioinformatics drug repurposing analyses with the gene expression biosignatures of the Top Dozen and Bonferroni-validated universal biomarkers identified novel potential therapeutics for suicidality, such as ebselen (a lithium mimetic), piracetam (a nootropic), chlorogenic acid (a polyphenol) and metformin (an antidiabetic and possible longevity promoting drug). Finally, based on the totality of our data and of the evidence in the field to date, a convergent functional evidence score prioritizing biomarkers that have all around evidence (track suicidality, predict it, are reflective of biological predisposition and are potential drug targets) brought to the fore APOE and IL6 from among the universal biomarkers, suggesting an inflammatory/accelerated aging component that may be a targetable common denominator.
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Affiliation(s)
- A B Niculescu
- Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, USA,Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, IN, USA,Indianapolis VA Medical Center, Indianapolis, IN, USA,INBRAIN, Indiana University School of Medicine, Indianapolis, IN, USA,Department of Psychiatry, Indiana University School of Medicine, Neuroscience Research Building 200B, 320 West 15th Street, Indianapolis, IN 46202, USA. E-mail:
| | - H Le-Niculescu
- Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, USA
| | - D F Levey
- Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, USA,Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, IN, USA
| | - P L Phalen
- Indianapolis VA Medical Center, Indianapolis, IN, USA
| | - H L Dainton
- Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, USA
| | - K Roseberry
- Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, USA
| | - E M Niculescu
- Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, USA
| | - J O Niezer
- Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, USA
| | - A Williams
- Indianapolis VA Medical Center, Indianapolis, IN, USA
| | - D L Graham
- Indianapolis VA Medical Center, Indianapolis, IN, USA
| | - T J Jones
- Indianapolis VA Medical Center, Indianapolis, IN, USA
| | - V Venugopal
- Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, USA
| | - A Ballew
- Marion County Coroner’s Office, Indianapolis, IN, USA
| | - M Yard
- INBRAIN, Indiana University School of Medicine, Indianapolis, IN, USA
| | - T Gelbart
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - S M Kurian
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - A Shekhar
- Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, USA
| | - N J Schork
- J. Craig Venter Institute, La Jolla, CA, USA
| | - G E Sandusky
- INBRAIN, Indiana University School of Medicine, Indianapolis, IN, USA
| | - D R Salomon
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, CA, USA
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21
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Molina-Guzman G, González-Castro TB, Hernández Díaz Y, Tovilla-Zárate CA, Juárez-Rojop IE, Guzmán-Priego CG, Genis A, Pool García S, López-Narvaez ML, Rodriguez-Perez JM. Gender differences in the association between HTR2C gene variants and suicidal behavior in a Mexican population: a case-control study. Neuropsychiatr Dis Treat 2017; 13:559-566. [PMID: 28260903 PMCID: PMC5328611 DOI: 10.2147/ndt.s122024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND The aim of this case-control study was to explore the association by gender between the HTR2C gene variants and suicidal behavior in a Mexican population. SUBJECTS AND METHODS A total of 183 suicide attempters and 208 healthy volunteers were included in this study. We genotyped five polymorphisms of HTR2C (rs547536, rs2192372, rs4272555, rs6318, and rs2428707), then measured the association by genotype, allele, and haplotype. RESULTS In the female group, we found an association between two polymorphisms of the HTR2C (rs4272555 and rs2428707) and suicide attempts. The C allele of the single-nucleotide polymorphism (SNP) rs4272555 was associated with a decreased risk of suicide attempt (P=0.01, odds ratio =0.26, 95% confidence interval: 0.09-0.79), whereas the G allele of the SNP rs2428707 was associated with an increased risk of suicide attempt (P=0.01, odds ratio =3.68, 95% confidence interval: 1.24-10.90). No significant association was observed between the other polymorphisms studied (rs547536, rs2192372, rs6318) or haplotypes with suicide attempts. CONCLUSION These findings suggest a possible risk factor of the HTR2C gene in the pathology of suicidal behavior in Mexican population. More studies are necessary to confirm this association.
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Affiliation(s)
- Gabriel Molina-Guzman
- División Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco, Villahermosa
| | | | - Yazmín Hernández Díaz
- División Académica Multidisciplinaria de Jalpa de Méndez, Universidad Juárez Autónoma de Tabasco, Jalpa de Méndez
| | - Carlos Alfonso Tovilla-Zárate
- División Académica Multidisciplinaria de Comalcalco, Universidad Juárez Autónoma de Tabasco, Comalcalco, Tabasco, México
| | - Isela E Juárez-Rojop
- División Académica Multidisciplinaria de Comalcalco, Universidad Juárez Autónoma de Tabasco, Comalcalco, Tabasco, México
| | | | - Alma Genis
- Instituto Nacional de Medicina Genómica (INMEGEN), Servicios de Atención Psiquiátrica (SAP), Secretaría de Salud, Ciudad de México, México
| | | | | | - José Manuel Rodriguez-Perez
- Departamento de Biología Molecular, Instituto Nacional de Cardiología Ignacio Chávez, Ciudad de México, México
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Bani-Fatemi A, Howe AS, Matmari M, Koga A, Zai C, Strauss J, De Luca V. Interaction between Methylation and CpG Single-Nucleotide Polymorphisms in the HTR2A Gene: Association Analysis with Suicide Attempt in Schizophrenia. Neuropsychobiology 2016; 73:10-5. [PMID: 26812280 DOI: 10.1159/000441191] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 09/09/2015] [Indexed: 11/19/2022]
Abstract
Dysfunctional mechanisms in the serotonergic system have been implicated in suicidal behavior among patients with schizophrenia. However, previous association analyses of major serotonin genes have provided inconsistent findings regarding their role in suicidal behavior. The goal of the current study was to identify single-nucleotide polymorphisms (SNP) within HTR2A that directly affect CpG methylation sites in schizophrenic patients with suicidal behavior. Furthermore, direct methylation analysis was performed using genomic DNA from peripheral leukocytes employing bisulfite pyrosequencing to assess the contributions of six CpG sites in HTR2A exon I in 67 schizophrenia patients assessed for lifetime suicide attempt. Potential methylation in 25 CpG SNPs across the entire HTR2A gene was analyzed considering their direct contribution to methylation. When we compared direct methylation between attempters and nonattempters, we found that only the polymorphic T102C (rs6313) was significantly different between the two groups (p = 0.02). Furthermore, in the potential methylation analysis, we found a nominal association with suicide attempt for six of the 25 SNPs analyzed, i.e. rs2770293 (p = 0.045), rs6313 (p = 0.033), rs17068986 (p = 0.029), rs4942578 (p = 0.024), rs1728872 (p = 0.014), and rs9534511 (p = 0.003). The results of this investigation provide preliminary evidence that the combined analysis of CpG SNPs and methylation may be useful for investigating the genetic and epigenetic factors involved in suicidal behavior.
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Affiliation(s)
- Ali Bani-Fatemi
- Group for Suicide Studies, Centre for Addiction and Mental Health, Department of Psychiatry, University of Toronto, Toronto, Ont., Canada
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Hernández-Alvarado MM, González-Castro TB, Tovilla-Zárate CA, Fresán A, Juárez-Rojop IE, López-Narváez ML, Villar-Soto M, Genis-Mendoza A. Increase in Suicide Rates by Hanging in the Population of Tabasco, Mexico between 2003 and 2012. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:E552. [PMID: 27258292 PMCID: PMC4924009 DOI: 10.3390/ijerph13060552] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Revised: 04/21/2016] [Accepted: 05/23/2016] [Indexed: 12/22/2022]
Abstract
BACKGROUND Worldwide, the suicide rate is decreasing. To examine changes in the rates of completed suicide in the Mexican population from 2003 to 2012, we analyzed these changes according to: (i) the method of suicide; (ii) age group and (iii) gender. METHODS The data analyzed were obtained from governmental organizations from the State of Tabasco, Mexico. The data provided 1836 cases of subjects born and residing in Tabasco, who completed suicide in this state. RESULTS Suicide by hanging was a common choice of suicide method for Mexicans. The rate of suicide by hanging increased from 5.80 to 6.49 per 100,000 persons between 2003 and 2012, a rate percentage increase of 11.89%. CONCLUSIONS Hanging was found to be the most common choice of suicide in the Mexican population, probably because the materials required are easily available and the method does not require complicated techniques, especially in the 55-64 age group. Strategies for prevention and intervention should be developed for the Mexican population considering suicide rates by age group and gender.
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Affiliation(s)
| | | | - Carlos Alfonso Tovilla-Zárate
- División Académica Multidisciplinaria de Comalcalco, Universidad Juárez Autónoma de Tabasco, Comalcalco, Tabasco 86650, Mexico.
| | - Ana Fresán
- Subdirección de Investigaciones Clínicas, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Mexico City 14370, Mexico.
| | - Isela E Juárez-Rojop
- División Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tabasco 86150, Mexico.
| | | | - Mario Villar-Soto
- Hospital de Alta Especialidad "Gustavo A. Rovirosa P", Villahermosa, Tabasco 86020, Mexico.
| | - Alma Genis-Mendoza
- Instituto Nacional de Medicina Genómica (INMEGEN), Servicios de Atención Psiquiátrica (SAP), Secretaría de Salud, Mexico city 14610, Mexico.
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No association between ApoE and schizophrenia: Evidence of systematic review and updated meta-analysis. Schizophr Res 2015; 169:355-368. [PMID: 26372448 DOI: 10.1016/j.schres.2015.08.031] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 08/18/2015] [Accepted: 08/21/2015] [Indexed: 11/23/2022]
Abstract
INTRODUCTION Schizophrenia affects between 0.3% and 2% of the worldwide population. A genetic contribution has been postulated in the development of this disorder. Genes such as ApoE have been implicated in the neurodevelopment associated with schizophrenia in case-control and meta-analysis studies, but the results remain inconclusive. Due to this, the aim of the present study was to explore the association between ApoE and schizophrenia through a meta-analysis. MATERIAL AND METHODS We collected all relevant studies by searching PubMed and EBSCO databases. The pooled odds ratios with 95% confidence intervals were calculated to estimate the association. The following models were evaluated: A) ε4 vs ε3, B) ε4 vs ε2, C) ε4 vs ε3+ε2, D) Caucasian population and E) Asian population. Statistical analyses were performed using EPIDAT 3.1 software. RESULTS The meta-analyses comprised 28 association studies, which included 4703 controls and 3452 subjects with schizophrenia. A significant protective effect was found for allele ε3 in the Asian population (OR=0.73, 95% CI=0.54-0.98). No significant associations were observed in the other models and populations analyzed. CONCLUSIONS Our meta-analysis suggests a protective association between ApoE allele ε3 and schizophrenia in the Asian population.
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Hernández-Díaz Y, Tovilla-Zárate CA, Juárez-Rojop I, Baños-González MA, Torres-Hernández ME, López-Narváez ML, Yañez-Rivera TG, González-Castro TB. The role of gene variants of the inflammatory markers CRP and TNF-α in cardiovascular heart disease: systematic review and meta-analysis. Int J Clin Exp Med 2015; 8:11958-11984. [PMID: 26550110 PMCID: PMC4612795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 07/21/2015] [Indexed: 06/05/2023]
Abstract
It is widely acknowledged that cardiovascular heart disease (CHD) has a genetic influence. Several studies have investigated the role of inflammatory markers like C-reactive protein (CRP) and tumor necrosis factor α (TNF-α) in the causation of cardiovascular diseases. Although there have been several positive studies associating CRP and TNF-α genes with CHD, the evidence is not entirely consistent. Therefore, we performed a meta-analysis to gain a better understanding into this issue. The meta-analysis was conducted with 22 articles of genetic association studies of CRP (G1059C rs1800947, C1444T rs1130864, C717T rs2794521 and G3872A rs1205) and TNF-α (C857T rs1799724, C863A rs1800630 and T1031C rs1799964) genes. To analyze the association of these variants with CHD we used the following models: allelic, additive, dominant and recessive. In addition, we performed a sub-group analysis by Caucasian population using the same four models. CRP and TNF-α gene polymorphisms showed a positive significant association with CHD. This study provides evidence that rs2794521 of the CRP gene and rs1799724, rs1800630 and rs1799964 of the TNF-α gene polymorphisms may be risk factors to manifest CHD. The analysis of rs1800947 and rs1205 of the CRP gene yielded a protective effect in the pathogenesis of this disease. Only the analysis of the rs1130864 polymorphism showed a lack of association with CHD. To have conclusive outcomes it is necessary to integrate more studies to confirm our findings.
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Affiliation(s)
- Yazmín Hernández-Díaz
- Universidad Juárez Autónoma de Tabasco, División Multidisciplinaria de Jalpa de Méndez Cunduacán, Tabasco, México
| | | | - Isela Juárez-Rojop
- Universidad Juárez Autónoma de Tabasco, División Académica de Ciencias de la Salud Villahermosa, Tabasco, México
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Sokolowski M, Wasserman J, Wasserman D. An overview of the neurobiology of suicidal behaviors as one meta-system. Mol Psychiatry 2015; 20:56-71. [PMID: 25178164 DOI: 10.1038/mp.2014.101] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Revised: 06/19/2014] [Accepted: 07/22/2014] [Indexed: 12/12/2022]
Abstract
Suicidal behaviors (SB) may be regarded as the outmost consequence of mental illnesses, or as a distinct entity per se. Regardless, the consequences of SB are very large to both society and affected individuals. The path leading to SB is clearly a complex one involving interactions between the subject's biology and environmental influences throughout life. With the aim to generate a representative and diversified overview of the different neurobiological components hypothesized or shown implicated across the entire SB field up to date by any approach, we selected and compiled a list of 212 gene symbols from the literature. An increasing number of novel gene (products) have been introduced as candidates, with half being implicated in SB in only the last 4 years. These candidates represent different neuro systems and functions and might therefore be regarded as competing or redundant explanations. We then adopted a unifying approach by treating them all as parts of the same meta-system, using bioinformatic tools. We present a network of all components connected by physical protein-protein interactions (the SB interactome). We proceeded by exploring the differences between the highly connected core (~30% of the candidate genes) and its peripheral parts, observing more functional homogeneity at the core, with multiple signal transduction pathways and actin-interacting proteins connecting a subset of receptors in nerve cell compartments as well as development/morphology phenotypes and the stress-sensitive synaptic plasticity processes of long term potentiation/depression. We suggest that SB neurobiology might also be viewed as one meta-system and perhaps be explained as intrinsic unbalances acting within the core or as imbalances arising between core and specific peripheral components.
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Affiliation(s)
- M Sokolowski
- National Centre for Suicide Research and Prevention of Mental Ill-Health (NASP), Karolinska Institute (KI), Stockholm, Sweden
| | - J Wasserman
- National Centre for Suicide Research and Prevention of Mental Ill-Health (NASP), Karolinska Institute (KI), Stockholm, Sweden
| | - D Wasserman
- 1] National Centre for Suicide Research and Prevention of Mental Ill-Health (NASP), Karolinska Institute (KI), Stockholm, Sweden [2] WHO Collaborating Centre for Research, Methods Development and Training in Suicide Prevention, Stockholm, Sweden
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ROY MADHUMITA, TAPADIA MADHUG, JOSHI SHOBHNA, KOCH BIPLOB. Molecular and genetic basis of depression. J Genet 2015; 93:879-92. [DOI: 10.1007/s12041-014-0449-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Zoghbi AW, Al Jurdi RK, Deshmukh PR, Chen DC, Xiu MH, Tan YL, Yang FD, Zhang XY. Cognitive function and suicide risk in Han Chinese inpatients with schizophrenia. Psychiatry Res 2014; 220:188-92. [PMID: 25174852 DOI: 10.1016/j.psychres.2014.07.046] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Revised: 05/28/2014] [Accepted: 07/22/2014] [Indexed: 01/25/2023]
Abstract
The lifetime risk of suicide in patients with schizophrenia is estimated to be 4.9-13%. While there are many known risk factors for suicide in schizophrenia, the relationship between cognitive function and suicide risk is unclear, particularly in non-Caucasian populations. In our cross-sectional study, we administered the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) to 316 Han Chinese chronic inpatients with schizophrenia and compared the performance of those who had attempted suicide (n=25) to non-attempters (n=291). The lifetime suicide attempt data were collected from medical records and interviews with patients and their family members. We found a lifetime suicide attempt rate of 7.9%. Suicide attempters were more likely to be single, but showed no significant differences in other demographic factors such as age, gender, or living arrangements. Contrary to our hypothesis, there was no significant relationship between performance on the RBANS test and lifetime risk of suicide attempts in Han Chinese inpatients with schizophrenia. The literature remains mixed on this topic. Culturally influenced differences in suicidal behavior may have affected the outcome of this study and further investigation of this topic is necessary.
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Affiliation(s)
- Anthony William Zoghbi
- Department of Psychiatry, Columbia University, 1051 Riverside Drive, New York, NY 10032, USA
| | - Rayan K Al Jurdi
- Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine and Michael E. DeBakey VA Medical Center, Houston, TX 77030, USA
| | - Poonam R Deshmukh
- Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine and Michael E. DeBakey VA Medical Center, Houston, TX 77030, USA
| | - Da C Chen
- Psychiatry Research Center, Beijing HuiLongGuan Hospital, Peking University, Chang-Ping District, Beijing 100096, PR China
| | - Mei H Xiu
- Psychiatry Research Center, Beijing HuiLongGuan Hospital, Peking University, Chang-Ping District, Beijing 100096, PR China
| | - Yun L Tan
- Psychiatry Research Center, Beijing HuiLongGuan Hospital, Peking University, Chang-Ping District, Beijing 100096, PR China
| | - Fu D Yang
- Psychiatry Research Center, Beijing HuiLongGuan Hospital, Peking University, Chang-Ping District, Beijing 100096, PR China
| | - Xiang Yang Zhang
- Psychiatry Research Center, Beijing HuiLongGuan Hospital, Peking University, Chang-Ping District, Beijing 100096, PR China; Department of Psychiatry and Behavioral Sciences, Harris County Psychiatric Center, The University of Texas Health Science Center at Houston, Houston, TX 77054, USA.
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Thelma Beatriz GC, Isela JR, Alma G, María Lilia LN, Carlos Alfonso TZ. Association between HTR2C gene variants and suicidal behaviour: a protocol for the systematic review and meta-analysis of genetic studies. BMJ Open 2014; 4:e005423. [PMID: 25190618 PMCID: PMC4158196 DOI: 10.1136/bmjopen-2014-005423] [Citation(s) in RCA: 10] [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: 04/08/2014] [Revised: 08/19/2014] [Accepted: 08/20/2014] [Indexed: 01/11/2023] Open
Abstract
INTRODUCTION Suicide is an important public health problem and one of the most common causes of death throughout the world. Suicidal behaviour is complex, and its causes are multifactorial. Case-control studies have reported an association between an alteration of the serotonin system and suicidal behaviour. Recently, it has been suggested that the 5-HTRC2 serotonin receptor gene is involved in the pathogenesis of suicidal behaviour. METHODS AND ANALYSIS To evaluate the role of the 5-HTR2C gene in suicidal behaviour, we will perform a systematic review and a meta-analysis of worldwide reports that have investigated the association between the serotonin system and suicidal behaviour. This analysis will be reported following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) criteria. Studies deemed fit for inclusion in the systematic review will be scored for methodological quality using the Newcastle-Ottawa Assessment Scale (NOS). The inclusion criteria will be to present independent data, to be case-control studies and to be published in journal peer reviews. To generate more accurate analyses, we will grade the reports using the GRADES scale procedures. ETHICS AND DISSEMINATION This study will describe the association between the HTR2C gene and suicidal behaviour. The results will be reported in a peer-reviewed publication and in scientific presentations in Mexico and throughout the world. TRIAL REGISTRATION NUMBER PROSPERO CRD42014009213.
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Affiliation(s)
| | - Juárez-Rojop Isela
- División Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tabasco, México
| | - Genis Alma
- Servicios de Atención Psiquiátrica (SAP), Secretaría de Salud, Instituto Nacional de Medicina Genómica (INMEGEN), México, Distrito Federal, México
| | | | - Tovilla-Zárate Carlos Alfonso
- División Académica Multidisciplinaria de Comalcalco, Universidad Juárez Autónoma de Tabasco, Comalcalco, Tabasco, México
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González-Castro TB, Juárez-Rojop I, López-Narváez ML, Tovilla-Zárate CA. Association of TPH-1 and TPH-2 gene polymorphisms with suicidal behavior: a systematic review and meta-analysis. BMC Psychiatry 2014; 14:196. [PMID: 25005534 PMCID: PMC4099217 DOI: 10.1186/1471-244x-14-196] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Accepted: 06/27/2014] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND It is widely acknowledged that suicidal behavior (SB) has a genetic influence. As a consequence, molecular genetic studies have been mostly conducted on serotonergic genes. One of the most promising candidate genes of this system is tryptophan hydroxylase (TPH). Although there have been several positive studies associating TPH genes and SB, the evidence is not entirely consistent. Therefore, we performed a meta-analysis to gain a better understanding into this issue. METHODS The meta-analysis was conducted with 37 articles of genetic association studies of TPH-1 (A218C and A779C) and TPH2 (G-703 T, A-473 T and G19918A) genes. To analyze the association of these variants with SB we used the following models: allelic, additive, dominant and recessive. In addition, we performed a sub-group analysis by Caucasian and Asian populations using the same four models. RESULTS TPH-1 gene variants showed a positive significant association with SB, but only in the fixed effects models. With regard to TPH-2 gene variants we could not find an association with SB. CONCLUSIONS The study provides evidence that A218C/A779C TPH-1 variants may be a risk factor to manifest SB at the clinical level, which is in agreement with previously reported meta-analyses. With regard to G-703 T/A-473 T/G19918A TPH-2 variants, our up-to-date meta-analysis could not detect any significant association between those genetic variants and SB. However, these results should be interpreted with caution since further studies need to be undertaken using larger sample sizes in different ethnic populations to confirm our findings.
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Affiliation(s)
| | - Isela Juárez-Rojop
- División Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tabasco, México
| | - María Lilia López-Narváez
- CIGEN, Centro de Investigación Genómica, Comalcalco, Tabasco, México,Hospital General de Yajalón, Yajalón, Chiapas, México
| | - Carlos Alfonso Tovilla-Zárate
- División Multidisciplinaria de Comalcalco, Universidad Juárez Autónoma de Tabasco, Ranchería Sur, Cuarta Sección, Comalcalco, Tabasco, C,P, 86650, México.
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Abstract
The meta-analysis study is a type of systematic review with strong scientific rigor; it has a number of characteristics that makes it a very useful tool. However, performing and reading meta-analysis could be a challenge-the meta-analysis overcomes the limitation of small sample sizes or rare outcomes by pooling results from individual studies in order to generate a single and better estimate. It also increases statistical power and allows the evaluation of discrepancies among the results of different studies. In this paper, we will present examples to illustrate how psychiatrists can utilize a meta-analysis in clinical and experimental research.
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Affiliation(s)
- Thelma Beatriz González-Castro
- Thelma Beatriz González-Castro, Universidad Juárez Autónoma de Tabasco, División Académica de Ciencias de la Salud , Villahermosa, Tabasco , México
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Tovilla-Zárate CA, González-Castro TB, Juárez-Rojop I, Pool García S, Velázquez-Sánchez MP, Villar-Soto M, Genis A, Nicolini H, López-Narváez ML, Jiménez-Santos MA. Study on genes of the serotonergic system and suicidal behavior: protocol for a case-control study in Mexican population. BMC Psychiatry 2014; 14:29. [PMID: 24495559 PMCID: PMC3916305 DOI: 10.1186/1471-244x-14-29] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 02/03/2014] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Suicidal behavior is a leading cause of injury and death worldwide. Several studies have provided a possible relationship between genetic factors and suicidal behavior. Also, these studies have shown evidence for altered serotonergic neural transmission in the pathogenesis of suicidal behavior. In addition, genes pertaining to the serotonergic system have been proposed as candidates to establish biological correlates between suicidal behavior and the serotonergic system. The most studied genes are SCL6A4, HTR2A, HTR2C, HTR1A, HTR1B, TPH-1, and TPH-2. To get a comprehensive understanding of the association with suicidal behavior we will conduct genotype assays studies in a Mexican population. METHODS/DESIGN We will conduct a case-control study. The population sample will comprise adolescent and adult patients admitted for attempted of suicide and diagnosed by a psychiatrist. A peripheral blood sample will be taken from all the subjects (cases and controls). Genomic DNA from the leukocytes blood sample will be extracted. The genotypes of interest are distributed in the following genes: SCL6A4, HTR2A, HTR1A, HTR1B, HTR2C, TPH-2 and TPH-1. All the samples will be analyzed using a polymerase chain reaction (PCR) end-point method. We will evaluate the Hardy-Weinberg Equilibrium. The chi-squared test or Fisher's exact test will be used to compare genotype and allele frequencies between control and case groups. The Quanto 1.2 software will measure the sample size of the association. For all the association analyses the level of significance will be set at p = 0.05 and the confidence interval at 95%. DISCUSSION Suicidal behavior has been increase in Mexico, principally in young population. Our study will demonstrate the association between serotoninergic genes and suicide behavior in Mexican population.
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Affiliation(s)
- Carlos Alfonso Tovilla-Zárate
- División Académica Multidisciplinaria de Comalcalco, Ranchería Sur, Cuarta Sección, CP 86650 Comalcalco, Tabasco, México.
| | | | - Isela Juárez-Rojop
- Universidad Juárez Autónoma de Tabasco, División Académica de Ciencias de la Salud, Villahermosa, Tabasco, México
| | - Sherezada Pool García
- Hospital General de Comalcalco, Tabasco, Secretaría de Salud, Comalcalco, Tabasco, México
| | | | - Mario Villar-Soto
- Hospital de Alta Especialidad “Gustavo A. Rovirosa P”, Villahermosa, Tabasco, México
| | - Alma Genis
- Instituto Nacional de Medicina Genómica (INMEGEN), Servicios de Atención Psiquiátrica (SAP), Secretaría de Salud, México, DF, México
| | - Humberto Nicolini
- Instituto Nacional de Medicina Genómica (INMEGEN), Servicios de Atención Psiquiátrica (SAP), Secretaría de Salud, México, DF, México
| | - María Lilia López-Narváez
- CIGEN, Centro de Investigación Genómica, Comalcalco, Tabasco, México,Hospital General de Yajalón, Yajalón, Chiapas, México
| | - María Antonia Jiménez-Santos
- División Académica Multidisciplinaria de Comalcalco, Ranchería Sur, Cuarta Sección, CP 86650 Comalcalco, Tabasco, México
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Cooper JM, Newby DA, Whyte IM, Carter G, Jones AL, Isbister GK. Serotonin toxicity from antidepressant overdose and its association with the T102C polymorphism of the 5-HT2A receptor. THE PHARMACOGENOMICS JOURNAL 2014; 14:390-4. [PMID: 24394202 DOI: 10.1038/tpj.2013.47] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Revised: 10/31/2013] [Accepted: 11/12/2013] [Indexed: 11/10/2022]
Abstract
Serotonin toxicity results from serotonin excess in the central nervous system from serotonergic drugs. Previous studies suggest an association between T102C polymorphism of the serotonin 2A (5-hydroxytryptamine 2A) receptor gene and serotonergic adverse effects with serotonergic drugs. We aimed to determine whether there is an association between the T102C polymorphism and serotonin toxicity in patients taking serotonergic drug overdoses. Ninety-five patients presenting with serotonergic drug overdoses were examined for serotonin toxicity and had blood collected for DNA analysis. A diagnosis of serotonin toxicity was made in 14 patients (15%) based on the Hunter Serotonin Toxicology Criteria. Four of the 14 patients (29%) with serotonin toxicity had the C/C genotype compared with 20/81 (25%) without serotonin toxicity. There were no differences in age or sex, but the median defined daily dose taken by patients with serotonin toxicity was 27 (14-84) compared with 18 (2-136) in patients without serotonin toxicity (P=0.06). There was no association between serotonin toxicity and the T102C polymorphism in patients taking a serotonergic drug overdose.
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Affiliation(s)
- J M Cooper
- 1] Discipline of Clinical Pharmacology, University of Newcastle, Waratah, NSW, Australia [2] Discipline of Pharmacy and Experimental Pharmacology, University of Newcastle, Newcastle, NSW, Australia
| | - D A Newby
- Discipline of Clinical Pharmacology, University of Newcastle, Waratah, NSW, Australia
| | - I M Whyte
- 1] Discipline of Clinical Pharmacology, University of Newcastle, Waratah, NSW, Australia [2] Department of Clinical Toxicology and Pharmacology, Calvary Mater Newcastle, Waratah, NSW, Australia
| | - G Carter
- Department of Liaison Psychiatry, Calvary Mater Newcastle, Waratah, NSW, Australia
| | - A L Jones
- Graduate School of Medicine, University of Wollongong, Wollongong, NSW, Australia
| | - G K Isbister
- 1] Discipline of Clinical Pharmacology, University of Newcastle, Waratah, NSW, Australia [2] Department of Clinical Toxicology and Pharmacology, Calvary Mater Newcastle, Waratah, NSW, Australia
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Zhang XY, Al Jurdi RK, Zoghbi AW, Chen DC, Xiu MH, Tan YL, Yang FD, Kosten TR. Prevalence, demographic and clinical correlates of suicide attempts in Chinese medicated chronic inpatients with schizophrenia. J Psychiatr Res 2013; 47:1370-5. [PMID: 23791457 DOI: 10.1016/j.jpsychires.2013.05.024] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2013] [Revised: 05/19/2013] [Accepted: 05/23/2013] [Indexed: 01/05/2023]
Abstract
The high prevalence of suicide in schizophrenia may be related to its demographic and clinical characteristics. Because suicide prevalence and its associations with clinical variables are less well characterized in Chinese than European patients with schizophrenia, we assessed the suicide attempts in 520 Chinese inpatients with schizophrenia. The suicide attempt data were collected from medical case notes and interviews with the patients and their family members. Patients were rated on the Positive and Negative Syndrome Scale (PANSS), the Simpson and Angus Extrapyramidal Symptom Rating Scale (SAES), and the Abnormal Involuntary Movement Scale (AIMS). Smoking severity was evaluated using clinician-administered questionnaires and the Fagerstrom Test for Nicotine Dependence (FTND). We found a suicide attempt rate of 9.2% in these schizophrenic inpatients. The attempters were single, had a significantly younger age but more hospitalizations, had higher depressive symptoms, and began smoking at an earlier age, smoked more cigarettes each day and had higher FTND total scores than patients without suicide attempts. The logistic regression analysis also indicated that suicide attempts were associated with the number of hospitalizations, depressive symptoms and FTND total scores. These results suggest that Chinese inpatients with schizophrenia attempt suicide more often than the general population. Further, some demographic and clinical variables are risk factors for suicide attempts in schizophrenia.
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Affiliation(s)
- Xiang Yang Zhang
- Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, TX, USA.
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