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Kim HK, Gonçalves VF, Husain MI, Müller DJ, Mulsant BH, Zai G, Kloiber S. Cross-disorder GWAS meta-analysis of endocannabinoid DNA variations in major depressive disorder, bipolar disorder, attention deficit hyperactivity disorder, autism spectrum disorder, and schizophrenia. Psychiatry Res 2023; 330:115563. [PMID: 37924773 DOI: 10.1016/j.psychres.2023.115563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/19/2023] [Accepted: 10/25/2023] [Indexed: 11/06/2023]
Abstract
The endocannabinoid system (ECS) is implicated in multiple mental disorders. In this study, we explored DNA variations in the ECS across major depressive disorder (MDD), bipolar disorder, attention deficit hyperactivity disorder (ADHD), autism spectrum disorder (ASD), and schizophrenia by performing a cross-disorder genome-wide association study (GWAS) meta-analysis. We obtained six datasets from the Psychiatric Genomics Consortium containing GWAS summary statistics from European cohorts (284,023 cases and 508,515 controls). Effective sample size weighted meta-analysis was performed for 2241 single nucleotide polymorphisms (SNPs) pertaining to gene bodies of 33 endocannabinoid genes using METAL, where an overall z-statistic is calculated for each marker based on a weighted sum of individual statistics. Heterogeneity was examined with I2 and X2 tests. MAGMA gene-based analysis was also performed. We identified nine SNPs significantly associated with a change in risk of having a mental disorder. The lead SNP was rs12805732 (Gene: Diacylglycerol Lipase Alpha; DAGLA). Four SNPs had substantial heterogeneity (I2>60 %). DAGLA had the strongest association with disease risk in gene-based analysis. Our findings suggest that the ECS may be a shared pathway in mental disorders. Future studies validating these findings would contribute to the identification of biomarkers of disease risk across multiple mental disorders.
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Affiliation(s)
- Helena K Kim
- Department of Psychiatry, Temerty Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Vanessa F Gonçalves
- Department of Psychiatry, Temerty Faculty of Medicine, University of Toronto, Toronto, Canada; Molecular Brain Sciences Department, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Canada; Department of Pharmacology & Toxicology, University of Toronto, Toronto, Canada
| | - Muhammad I Husain
- Department of Psychiatry, Temerty Faculty of Medicine, University of Toronto, Toronto, Canada; Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Canada
| | - Daniel J Müller
- Department of Psychiatry, Temerty Faculty of Medicine, University of Toronto, Toronto, Canada; Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Canada
| | - Benoit H Mulsant
- Department of Psychiatry, Temerty Faculty of Medicine, University of Toronto, Toronto, Canada; Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Canada; Institute of Medical Science, Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Gwyneth Zai
- Department of Psychiatry, Temerty Faculty of Medicine, University of Toronto, Toronto, Canada; Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Canada; Institute of Medical Science, Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Stefan Kloiber
- Department of Psychiatry, Temerty Faculty of Medicine, University of Toronto, Toronto, Canada; Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Canada; Institute of Medical Science, Faculty of Medicine, University of Toronto, Toronto, Canada.
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2
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Kohshour MO, Gonçalves VF. Mitochondrial genetics in mental disorders: The bioenergy viewpoint. Eur Neuropsychopharmacol 2023; 67:80-82. [PMID: 36640690 DOI: 10.1016/j.euroneuro.2022.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/18/2022] [Accepted: 12/20/2022] [Indexed: 01/13/2023]
Affiliation(s)
- Mojtaba Oraki Kohshour
- Institute of Psychiatric Phenomics and Genomics (IPPG), University Hospital, LMU Munich, 80336, Munich, Germany; Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Vanessa F Gonçalves
- Molecular Brain Science Research Department, Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute, Toronto, ON, Canada; Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada; Department of Psychiatry, University of Toronto, Toronto, ON, Canada; Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada.
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3
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Melhuish Beaupre LM, Brown GM, Braganza NA, Kennedy JL, Gonçalves VF. Mitochondria's role in sleep: Novel insights from sleep deprivation and restriction studies. World J Biol Psychiatry 2022; 23:1-13. [PMID: 33821750 DOI: 10.1080/15622975.2021.1907723] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVES/METHODS The biology underlying sleep is not yet fully elucidated, but it is known to be complex and largely influenced by circadian rhythms. Compelling evidence supports of a link among circadian rhythms, sleep and metabolism, which suggests a role for mitochondria. These organelles play a significant role in energy metabolism via oxidative phosphorylation (OXPHOS) and several mitochondrial enzymes display circadian oscillations. However, the interplay between mitochondria and sleep is not as well-known. This review summarises human and animal studies that have examined the role of mitochondria in sleep. Literature searches were conducted using PubMed and Google Scholar. RESULTS Using various models of sleep deprivation, animal studies support the involvement of mitochondria in sleep via differential gene and protein expression patterns, OXPHOS enzyme activity, and morphology changes. Human studies are more limited but also show differences in OXPHOS enzyme activity and protein levels among individuals who have undergone sleep deprivation or suffer from different forms of insomnia. CONCLUSIONS Taken altogether, both types of study provide evidence for mitochondria's involvement in the sleep-wake cycle. We briefly discuss the potential clinical implications of these studies.
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Affiliation(s)
- Lindsay M Melhuish Beaupre
- Department of Molecular Brain Science Research, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada.,Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
| | - Gregory M Brown
- Department of Molecular Brain Science Research, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Nicole A Braganza
- Department of Molecular Brain Science Research, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - James L Kennedy
- Department of Molecular Brain Science Research, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada.,Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Vanessa F Gonçalves
- Department of Molecular Brain Science Research, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada.,Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada
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Melhuish Beaupre LM, Tiwari AK, Gonçalves VF, Zai CC, Marshe VS, Lewis CM, Martin NG, McIntosh AM, Adams MJ, Baune BT, Levinson DF, Boomsma DI, Penninx BWJH, Breen G, Hamilton S, Awasthi S, Ripke S, Jones L, Jones I, Byrne EM, Hickie IB, Potash JP, Shi J, Weissman MM, Milaneschi Y, Shyn SI, de Geus EJC, Willemsen G, Brown GM, Kennedy JL. Corrigendum: Potential genetic overlap between insomnia and sleep symptoms in major depressive disorder: A polygenic risk score analysis. Front Psychiatry 2022; 13:893816. [PMID: 35990050 PMCID: PMC9387200 DOI: 10.3389/fpsyt.2022.893816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 06/28/2022] [Indexed: 12/04/2022] Open
Abstract
[This corrects the article DOI: 10.3389/fpsyt.2021.734077.].
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Affiliation(s)
- Lindsay M Melhuish Beaupre
- Molecular Brain Science Research Department, Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute, Toronto, ON, Canada.,Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
| | - Arun K Tiwari
- Molecular Brain Science Research Department, Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Vanessa F Gonçalves
- Molecular Brain Science Research Department, Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute, Toronto, ON, Canada.,Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Clement C Zai
- Molecular Brain Science Research Department, Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute, Toronto, ON, Canada.,Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada.,Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Victoria S Marshe
- Molecular Brain Science Research Department, Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute, Toronto, ON, Canada.,Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
| | - Cathryn M Lewis
- Social, Genetic and Developmental Psychiatry Centre, King's College London, London, United Kingdom.,Department of Medical and Molecular Genetics, King's College London, London, United Kingdom
| | - Nicholas G Martin
- Genetics and Computational Biology, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Andrew M McIntosh
- Division of Psychiatry, University of Edinburgh, Edinburgh, United Kingdom
| | - Mark J Adams
- Division of Psychiatry, University of Edinburgh, Edinburgh, United Kingdom
| | - Bernhard T Baune
- Department of Psychiatry, University of Münster, Münster, Germany.,Department of Psychiatry, Melbourne Medical School, University of Melbourne, Melbourne, VIC, Australia.,Florey Institute of Neuroscience and Mental Health, University of Melbourne, Melbourne, VIC, Australia
| | - Doug F Levinson
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, United States
| | - Dorret I Boomsma
- Department of Biological Psychology, Amsterdam Public Health Research Institute, Vrije Universiteit, Amsterdam, Netherlands
| | - Brenda W J H Penninx
- Department of Psychiatry, Amsterdam Public Health and Amsterdam Neuroscience, Amsterdam UMC/Vrije Universiteit, Amsterdam, Netherlands
| | - Gerome Breen
- Social, Genetic and Developmental Psychiatry Centre, King's College London, London, United Kingdom.,National Institute for Health Research (NIHR) Maudsley Biomedical Research Centre, King's College London, London, United Kingdom
| | - Steve Hamilton
- The Permanente Medical Group, San Francisco, CA, United States
| | - Swapnil Awasthi
- Department of Psychiatry and Psychotherapy, Universitäts Medizin Berlin Campus Charité Mitte, Berlin, Germany
| | - Stephan Ripke
- Department of Psychiatry and Psychotherapy, Universitäts Medizin Berlin Campus Charité Mitte, Berlin, Germany.,Analytic and Translational Genetic Unit, Massachusetts General Hospital, Boston, MA, United States.,Medical and Population Genetics, Broad Institute, Cambridge, MA, United States.,Department of Psychiatry, Charité, Berlin, Germany
| | - Lisa Jones
- Psychological Medicine, University of Worcester, Worcester, United Kingdom
| | - Ian Jones
- Medical Research Council (MRC) Centre for Neuropsychiatric Genetics and Genomics, Neuroscience and Mental Health Research Institute, Cardiff University, Cardiff, United Kingdom
| | - Enda M Byrne
- Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD, Australia
| | - Ian B Hickie
- Brain and Mind Centre, University of Sydney, Sydney, NSW, Australia
| | - James P Potash
- Psychiatry Department, University of Iowa, Iowa City, IA, United States
| | - Jianxin Shi
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, United States
| | - Myrna M Weissman
- Psychiatry Department, Columbia University College of Physicians and Surgeons, New York, NY, United States.,Division of Epidemiology, New York State Psychiatric Institute, New York, NY, United States
| | - Yuri Milaneschi
- Department of Psychiatry, Amsterdam Public Health and Amsterdam Neuroscience, Amsterdam UMC/Vrije Universiteit, Amsterdam, Netherlands
| | - Stanley I Shyn
- Washington Permanente Medical Group, Kaiser Permanente Washington Health Research Institute, Seattle, WA, United States
| | - Eco J C de Geus
- Department of Psychiatry, Amsterdam Public Health and Amsterdam Neuroscience, Amsterdam UMC/Vrije Universiteit, Amsterdam, Netherlands
| | - Gonneke Willemsen
- Department of Psychiatry, Amsterdam Public Health and Amsterdam Neuroscience, Amsterdam UMC/Vrije Universiteit, Amsterdam, Netherlands
| | - Gregory M Brown
- Molecular Brain Science Research Department, Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute, Toronto, ON, Canada.,Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
| | - James L Kennedy
- Molecular Brain Science Research Department, Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute, Toronto, ON, Canada.,Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada
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Melhuish Beaupre LM, Brown GM, Gonçalves VF, Kennedy JL. Melatonin's neuroprotective role in mitochondria and its potential as a biomarker in aging, cognition and psychiatric disorders. Transl Psychiatry 2021; 11:339. [PMID: 34078880 PMCID: PMC8172874 DOI: 10.1038/s41398-021-01464-x] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 04/16/2021] [Accepted: 05/14/2021] [Indexed: 02/05/2023] Open
Abstract
Melatonin is an ancient molecule that is evident in high concentrations in various tissues throughout the body. It can be separated into two pools; one of which is synthesized by the pineal and can be found in blood, and the second by various tissues and is present in these tissues. Pineal melatonin levels display a circadian rhythm while tissue melatonin does not. For decades now, melatonin has been implicated in promoting and maintaining sleep. More recently, evidence indicates that it also plays an important role in neuroprotection. The beginning of our review will summarize this literature. As an amphiphilic, pleiotropic indoleamine, melatonin has both direct actions and receptor-mediated effects. For example, melatonin has established effects as an antioxidant and free radical scavenger both in vitro and in animal models. This is also evident in melatonin's prominent role in mitochondria, which is reviewed in the next section. Melatonin is synthesized in, taken up by, and concentrated in mitochondria, the powerhouse of the cell. Mitochondria are also the major source of reactive oxygen species as a byproduct of mitochondrial oxidative metabolism. The final section of our review summarizes melatonin's potential role in aging and psychiatric disorders. Pineal and tissue melatonin levels both decline with age. Pineal melatonin declines in individuals suffering from psychiatric disorders. Melatonin's ability to act as a neuroprotectant opens new avenues of exploration for the molecule as it may be a potential treatment for cases with neurodegenerative disease.
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Affiliation(s)
- Lindsay M Melhuish Beaupre
- Molecular Brain Science Research Department, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada
- Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
| | - Gregory M Brown
- Molecular Brain Science Research Department, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Vanessa F Gonçalves
- Molecular Brain Science Research Department, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada
- Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - James L Kennedy
- Molecular Brain Science Research Department, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada.
- Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada.
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada.
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6
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Melhuish Beaupre LM, Tiwari AK, Gonçalves VF, Zai CC, Marshe VS, Lewis CM, Martin NG, McIntosh AM, Adams MJ, Baune BT, Levinson DF, Boomsma DI, Penninx BWJH, Breen G, Hamilton S, Awasthi S, Ripke S, Jones L, Jones I, Byrne EM, Hickie IB, Potash JP, Shi J, Weissman MM, Milaneschi Y, Shyn SI, de Geus EJC, Willemsen G, Brown GM, Kennedy JL. Potential Genetic Overlap Between Insomnia and Sleep Symptoms in Major Depressive Disorder: A Polygenic Risk Score Analysis. Front Psychiatry 2021; 12:734077. [PMID: 34925085 PMCID: PMC8678563 DOI: 10.3389/fpsyt.2021.734077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 11/01/2021] [Indexed: 11/14/2022] Open
Abstract
Background: The prevalence of insomnia and hypersomnia in depressed individuals is substantially higher than that found in the general population. Unfortunately, these concurrent sleep problems can have profound effects on the disease course. Although the full biology of sleep remains to be elucidated, a recent genome-wide association (GWAS) of insomnia, and other sleep traits in over 1 million individuals was recently published and provides many promising hits for genetics of insomnia in a population-based sample. Methods: Using data from the largest available GWAS of insomnia and other sleep traits, we sought to test if sleep variable PRS scores derived from population-based studies predicted sleep variables in samples of depressed cases [Psychiatric Genomics Consortium - Major Depressive Disorder subjects (PGC MDD)]. A leave-one-out analysis was performed to determine the effects that each individual study had on our results. Results: The only significant finding was for insomnia, where p-value threshold, p = 0.05 was associated with insomnia in our PGC MDD sample (R 2 = 1.75-3, p = 0.006). Conclusion: Our results reveal that <1% of variance is explained by the variants that cover the two significant p-value thresholds, which is in line with the fact that depression and insomnia are both polygenic disorders. To the best of our knowledge, this is the first study to investigate genetic overlap between the general population and a depression sample for insomnia, which has important treatment implications, such as leading to novel drug targets in future research efforts.
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Affiliation(s)
- Lindsay M Melhuish Beaupre
- Molecular Brain Science Research Department, Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute, Toronto, ON, Canada.,Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
| | - Arun K Tiwari
- Molecular Brain Science Research Department, Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Vanessa F Gonçalves
- Molecular Brain Science Research Department, Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute, Toronto, ON, Canada.,Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Clement C Zai
- Molecular Brain Science Research Department, Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute, Toronto, ON, Canada.,Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada.,Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Victoria S Marshe
- Molecular Brain Science Research Department, Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute, Toronto, ON, Canada.,Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
| | - Cathryn M Lewis
- Social, Genetic and Developmental Psychiatry Centre, King's College London, London, United Kingdom.,Department of Medical and Molecular Genetics, King's College London, London, United Kingdom
| | - Nicholas G Martin
- Genetics and Computational Biology, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Andrew M McIntosh
- Division of Psychiatry, University of Edinburgh, Edinburgh, United Kingdom
| | - Mark J Adams
- Division of Psychiatry, University of Edinburgh, Edinburgh, United Kingdom
| | - Bernhard T Baune
- Department of Psychiatry, University of Münster, Münster, Germany.,Department of Psychiatry, University of Melbourne, Melbourne, VIC, Australia.,Melbourne Medical School, Florey Institute of Neuroscience and Mental Health, University of Melbourne, Melbourne, VIC, Australia
| | - Doug F Levinson
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, United States
| | - Dorret I Boomsma
- Department of Biological Psychology, Amsterdam Public Health Research Institute, Vrije Universiteit, Amsterdam, Netherlands
| | - Brenda W J H Penninx
- Department of Psychiatry, Amsterdam Public Health and Amsterdam Neuroscience, Amsterdam UMC/Vrije Universiteit, Amsterdam, Netherlands
| | - Gerome Breen
- Social, Genetic and Developmental Psychiatry Centre, King's College London, London, United Kingdom.,National Institute for Health Research (NIHR) Maudsley Biomedical Research Centre, King's College London, London, United Kingdom
| | - Steve Hamilton
- The Permanente Medical Group, San Francisco, CA, United States
| | - Swapnil Awasthi
- Department of Psychiatry and Psychotherapy, Universitäts Medizin Berlin Campus Charité Mitte, Berlin, Germany
| | - Stephan Ripke
- Department of Psychiatry and Psychotherapy, Universitäts Medizin Berlin Campus Charité Mitte, Berlin, Germany.,Analytic and Translational Genetic Unit, Massachusetts General Hospital, Boston, MA, United States.,Medical and Population Genetics, Broad Institute, Cambridge, MA, United States.,Department of Psychiatry, Charité, Berlin, Germany
| | - Lisa Jones
- Psychological Medicine, University of Worcester, Worcester, United Kingdom
| | - Ian Jones
- Medical Research Council (MRC) Centre for Neuropsychiatric Genetics and Genomics, Neuroscience and Mental Health Research Institute, Cardiff University, Cardiff, United Kingdom
| | - Enda M Byrne
- Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD, Australia
| | - Ian B Hickie
- Brain and Mind Centre, University of Sydney, Sydney, NSW, Australia
| | - James P Potash
- Psychiatry Department, University of Iowa, Iowa City, IA, United States
| | - Jianxin Shi
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, United States
| | - Myrna M Weissman
- Psychiatry Department, Columbia University College of Physicians and Surgeons, New York, NY, United States.,Division of Epidemiology, New York State Psychiatric Institute, New York, NY, United States
| | - Yuri Milaneschi
- Department of Psychiatry, Amsterdam Public Health and Amsterdam Neuroscience, Amsterdam UMC/Vrije Universiteit, Amsterdam, Netherlands
| | - Stanley I Shyn
- Washington Permanente Medical Group, Kaiser Permanente Washington Health Research Institute, Seattle, WA, United States
| | - Eco J C de Geus
- Department of Psychiatry, Amsterdam Public Health and Amsterdam Neuroscience, Amsterdam UMC/Vrije Universiteit, Amsterdam, Netherlands
| | - Gonneke Willemsen
- Department of Psychiatry, Amsterdam Public Health and Amsterdam Neuroscience, Amsterdam UMC/Vrije Universiteit, Amsterdam, Netherlands
| | - Gregory M Brown
- Molecular Brain Science Research Department, Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute, Toronto, ON, Canada.,Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
| | - James L Kennedy
- Molecular Brain Science Research Department, Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute, Toronto, ON, Canada.,Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada
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Yoshida K, Maciukiewicz M, Zai CC, Gonçalves VF, Brandl EJ, Lieberman JA, Meltzer HY, Tiwari AK, Kennedy JL, Müller DJ. Association between the -2548G/A polymorphism of the leptin gene and antipsychotic-induced weight gain: Analysis of the CATIE sample and meta-analysis. Prog Neuropsychopharmacol Biol Psychiatry 2020; 102:109952. [PMID: 32335267 DOI: 10.1016/j.pnpbp.2020.109952] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 04/21/2020] [Accepted: 04/22/2020] [Indexed: 11/25/2022]
Abstract
BACKGROUND Antipsychotics, especially most of the second-generation antipsychotics, have a high risk for metabolic syndrome and antipsychotic-induced weight gain (AIWG). A promoter variant of the leptin (LEP) gene, -2548G/A (rs7799039), has been associated with AIWG in several studies. The aim of this study was to evaluate this association in the Clinical Antipsychotic Trials of Intervention Effectiveness (CATIE) sample, followed by meta-analysis. METHODS We investigated the association between rs7799039 and AIWG in a sub-sample of European (N = 164) individuals from the CATIE study. Body mass index (BMI) change and weight gain (presence or absence) was analyzed using ANCOVA and logistic regression, respectively. For the meta-analysis, a literature search was conducted using MEDLINE, Embase, and PsycINFO up to October 2019. The pooled odds ratio was calculated for presence or absence of weight gain (≥7% weight change) using a random effects model. RESULTS We did not detect an association between rs7799039 and BMI change or weight gain (presence or absence) in the CATIE sample. As for the meta-analysis, we included 12 studies. No significant associations between the LEP rs7799039 polymorphism and AIWG were observed under the allelic genetic model (allele A vs. allele G) (OR = 1.10 [0.71, 1.70], p = .68). In the subgroup analyses of first-episode schizophrenia patients, a significant association between the A-allele and weight gain was observed, respectively (OR = 2.32 [1.41, 3.82], p = .0009). CONCLUSIONS The present meta-analysis showed no significant effect of rs7799039 on AIWG. However, this variant may influence AIWG in first-episode schizophrenia patients. Further investigation of a larger and more homogenous sample is required to elucidate the role of the LEP gene in AIWG.
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Affiliation(s)
- Kazunari Yoshida
- Pharmacogenetics Research Clinic, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada; Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Malgorzata Maciukiewicz
- Pharmacogenetics Research Clinic, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada; Department of Rheumatology, Center of Experimental Rheumatology, University Hospital of Zurich, Zurich, Switzerland
| | - Clement C Zai
- Pharmacogenetics Research Clinic, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada; Department of Psychiatry, University of Toronto, Toronto, ON, Canada; Institute of Medical Science, University of Toronto, Toronto, ON, Canada; Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Vanessa F Gonçalves
- Pharmacogenetics Research Clinic, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada; Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Eva J Brandl
- Department of Psychiatry and Psychotherapy, Campus Mitte, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Jeffrey A Lieberman
- Department of Psychiatry, College of Physicians and Surgeons, Columbia University, The New York State Psychiatric Institute, New York City, NY, USA
| | - Herbert Y Meltzer
- Department of Psychiatry and Behavioral Sciences, Northwestern Feinberg School of Medicine, Evanston, IL, USA
| | - Arun K Tiwari
- Pharmacogenetics Research Clinic, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada; Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - James L Kennedy
- Pharmacogenetics Research Clinic, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada; Department of Psychiatry, University of Toronto, Toronto, ON, Canada; Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Daniel J Müller
- Pharmacogenetics Research Clinic, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada; Department of Psychiatry, University of Toronto, Toronto, ON, Canada; Institute of Medical Science, University of Toronto, Toronto, ON, Canada.
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8
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Melhuish Beaupre LM, Gonçalves VF, Zai CC, Tiwari AK, Harripaul RS, Herbert D, Freeman N, Müller DJ, Kennedy JL. Genome-Wide Association Study of Sleep Disturbances in Depressive Disorders. Mol Neuropsychiatry 2020; 5:34-43. [PMID: 32399468 DOI: 10.1159/000505804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 12/21/2019] [Indexed: 11/19/2022]
Abstract
Sleep disturbance affects about 75% of depressed individuals and is associated with poorer patient outcomes. The genetics in this field is an emerging area of research. Thus far, only core circadian genes have been examined in this context. We expanded on this by performing a genome-wide association study (GWAS) followed by a preplanned hypothesis-driven analysis with 27 genes associated with the biology of sleep. All participants were diagnosed by their referring physician, completed the Beck Depression Inventory (BDI), and the Udvalg for Kliniske Undersogelser Side Effect Rating Scale at baseline. Our phenotype consisted of replies to 3 questions from these questionnaires. From standard GWAS chip data, imputations were performed. Baseline total BDI scores (n = 364) differed significantly between those with and those without sleep problems. We were unable to find any significant GWAS hits although our top hit was for changes in sleep and an intergenic marker near SNX18 (p = 1.06 × 10<sup>-6</sup>). None of the markers in our hypothesis-driven analysis remained significant after applying Bonferroni corrections. Our top finding among these genes was for rs13019460 of Neuronal PAS Domain Protein 2 with changes in sleep (p = 0.0009). Overall, both analyses were unable to detect any significant associations in our modest sample though we did find some interesting preliminary associations worth further exploration.
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Affiliation(s)
- Lindsay M Melhuish Beaupre
- Institute of Medical Sciences, University of Toronto, Toronto, Ontario, Canada.,Molecular Brain Science Research Department, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Vanessa F Gonçalves
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada.,Molecular Brain Science Research Department, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Clement C Zai
- Institute of Medical Sciences, University of Toronto, Toronto, Ontario, Canada.,Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada.,Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada.,Molecular Brain Science Research Department, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Arun K Tiwari
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada.,Molecular Brain Science Research Department, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Ricardo S Harripaul
- Institute of Medical Sciences, University of Toronto, Toronto, Ontario, Canada.,Molecular Neuropsychiatry and Development Lab, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Deanna Herbert
- Molecular Brain Science Research Department, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Natalie Freeman
- Molecular Brain Science Research Department, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Daniel J Müller
- Institute of Medical Sciences, University of Toronto, Toronto, Ontario, Canada.,Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada.,Pharmacogenetics Research Clinic, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - James L Kennedy
- Institute of Medical Sciences, University of Toronto, Toronto, Ontario, Canada.,Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada.,Molecular Brain Science Research Department, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
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9
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Abstract
The maternally inherited mitochondrial DNA (mtDNA) is located inside every mitochondrion, in variable number of copies, and it contains 37 crucial genes for cellular bioenergetics. This chapter will discuss the unique features of this circular genome including heteroplasmy, haplogroups, among others, along with the corresponding clinical relevance for each. The discussion also covers the nuclear-encoded mitochondrial genes (N > 1000) and the epistatic interactions between mtDNA and the nuclear genome. Examples of mitochondrial diseases related to specific mtDNA mutation sites of relevance for humans are provided. This chapter aims to provide an overview of mitochondrial genetics as an emerging hot topic for the future of medicine.
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Affiliation(s)
- Vanessa F Gonçalves
- Molecular Brain Sciences Department, Centre for Addiction and Mental Health, Toronto, Canada.
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10
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Gonçalves VF, Cuperfain AB, Kennedy JL. Sex differences in schizophrenia: estrogen and mitochondria. Neuropsychopharmacology 2019; 44:216-217. [PMID: 30294000 PMCID: PMC6235927 DOI: 10.1038/s41386-018-0228-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 09/07/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Vanessa F. Gonçalves
- 0000 0000 8793 5925grid.155956.bMolecular Brain Science, Centre for Addiction and Mental Health, Toronto, ON Canada
| | - Ari B. Cuperfain
- 0000 0000 8793 5925grid.155956.bMolecular Brain Science, Centre for Addiction and Mental Health, Toronto, ON Canada
| | - James L. Kennedy
- 0000 0000 8793 5925grid.155956.bMolecular Brain Science, Centre for Addiction and Mental Health, Toronto, ON Canada ,0000 0001 2157 2938grid.17063.33Department of Psychiatry, University of Toronto, Toronto, ON Canada
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11
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Bybjerg-Grauholm J, Hagen CM, Gonçalves VF, Bækvad-Hansen M, Hansen CS, Hedley PL, Kanters JK, Nielsen J, Theisen M, Mors O, Kennedy J, Als TD, Demur AB, Nordentoft M, Børglum A, Mortensen PB, Werge TM, Hougaard DM, Christiansen M. Complex spatio-temporal distribution and genomic ancestry of mitochondrial DNA haplogroups in 24,216 Danes. PLoS One 2018; 13:e0208829. [PMID: 30543675 PMCID: PMC6292624 DOI: 10.1371/journal.pone.0208829] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 11/23/2018] [Indexed: 02/06/2023] Open
Abstract
Mitochondrial DNA (mtDNA) haplogroups (hgs) are evolutionarily conserved sets of mtDNA SNP-haplotypes with characteristic geographical distribution. Associations of hgs with disease and physiological characteristics have been reported, but have frequently not been reproducible. Using 418 mtDNA SNPs on the PsychChip (Illumina), we assessed the spatio-temporal distribution of mtDNA hgs in Denmark from DNA isolated from 24,642 geographically un-biased dried blood spots (DBS), collected from 1981 to 2005 through the Danish National Neonatal Screening program. ADMIXTURE was used to establish the genomic ancestry of all samples using a reference of 100K+ autosomal SNPs in 2,248 individuals from nine populations. Median-joining analysis determined that the hgs were highly variable, despite being typically Northern European in origin, suggesting multiple founder events. Furthermore, considerable heterogeneity and variation in nuclear genomic ancestry was observed. Thus, individuals with hg H exhibited 95%, and U hgs 38.2% - 92.5%, Danish ancestry. Significant clines between geographical regions and rural and metropolitan populations were found. Over 25 years, macro-hg L increased from 0.2% to 1.2% (p = 1.1*E-10), and M from 1% to 2.4% (p = 3.7*E-8). Hg U increased among the R macro-hg from 14.1% to 16.5% (p = 1.9*E-3). Genomic ancestry, geographical skewedness, and sub-hg distribution suggested that the L, M and U increases are due to immigration. The complex spatio-temporal dynamics and genomic ancestry of mtDNA in the Danish population reflect repeated migratory events and, in later years, net immigration. Such complexity may explain the often contradictory and population-specific reports of mito-genomic association with disease.
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Affiliation(s)
| | - Christian M. Hagen
- Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark
| | | | - Marie Bækvad-Hansen
- Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark
| | - Christine S. Hansen
- Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark
| | - Paula L. Hedley
- Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark
| | - Jørgen K. Kanters
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jimmi Nielsen
- Aalborg Psychiatric Hospital. Aalborg University Hospital, Aalborg, Denmark
| | - Michael Theisen
- Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark
| | - Ole Mors
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - James Kennedy
- Centre for Addiction and Mental Health, University of Toronto, Toronto, Canada
| | - Thomas D. Als
- Institute of Medical Genetics, Aarhus University, Aarhus, Denmark
| | - Alfonso B. Demur
- Mental Health Centre, Sct Hans, Capital Region of Denmark, Denmark
| | | | - Anders Børglum
- Institute of Medical Genetics, Aarhus University, Aarhus, Denmark
| | - Preben B. Mortensen
- Center for Register Research, Institute of Economics, Aarhus University, Århus, Denmark
| | - Thomas M. Werge
- Mental Health Centre, Sct Hans, Capital Region of Denmark, Denmark
| | - David M. Hougaard
- Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark
| | - Michael Christiansen
- Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
- * E-mail:
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12
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Hagen CM, Gonçalves VF, Hedley PL, Bybjerg-Grauholm J, Bækvad-Hansen M, Hansen CS, Kanters JK, Nielsen J, Mors O, Demur AB, Als TD, Nordentoft M, Børglum A, Mortensen PB, Kennedy J, Werge TM, Hougaard DM, Christiansen M. Schizophrenia-associated mt-DNA SNPs exhibit highly variable haplogroup affiliation and nuclear ancestry: Bi-genomic dependence raises major concerns for link to disease. PLoS One 2018; 13:e0208828. [PMID: 30532134 PMCID: PMC6287820 DOI: 10.1371/journal.pone.0208828] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 11/23/2018] [Indexed: 11/19/2022] Open
Abstract
Mitochondria play a significant role in human diseases. However, disease associations with mitochondrial DNA (mtDNA) SNPs have proven difficult to replicate. An analysis of eight schizophrenia-associated mtDNA SNPs, in 23,743 Danes without a psychiatric diagnosis and 2,538 schizophrenia patients, revealed marked inter-allelic differences in mitochondrial haplogroup affiliation and nuclear ancestry. This bi-genomic dependence could entail population stratification. Only two mitochondrial SNPs, m.15043A and m.15218G, were significantly associated with schizophrenia. However, these associations disappeared when corrected for haplogroup affiliation and nuclear ancestry. The extensive bi-genomic dependence documented here is a major concern when interpreting historic, as well as designing future, mtDNA association studies.
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Affiliation(s)
- Christian M. Hagen
- Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark
| | | | - Paula L. Hedley
- Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark
| | | | - Marie Bækvad-Hansen
- Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark
| | - Christine S. Hansen
- Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark
| | - Jørgen K. Kanters
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jimmi Nielsen
- Aalborg Psychiatric Hospital, Aalborg University Hospital, Aalborg, Denmark
| | - Ole Mors
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Alfonso B. Demur
- Mental Health Centre, Sct Hans, Capital Region of Denmark, Denmark
| | - Thomas D. Als
- Institute of Medical Genetics, Aarhus University, Aarhus, Denmark
| | | | - Anders Børglum
- Institute of Medical Genetics, Aarhus University, Aarhus, Denmark
| | - Preben B. Mortensen
- Center for Register Research, Institute of Economics, Aarhus University, Aarhus, Denmark
| | - James Kennedy
- Centre for Addiction and Mental Health, University of Toronto, Toronto, Canada
| | - Thomas M. Werge
- Mental Health Centre, Sct Hans, Capital Region of Denmark, Denmark
| | - David M. Hougaard
- Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark
| | - Michael Christiansen
- Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
- * E-mail:
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13
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Cuperfain AB, Zhang ZL, Kennedy JL, Gonçalves VF. The Complex Interaction of Mitochondrial Genetics and Mitochondrial Pathways in Psychiatric Disease. Mol Neuropsychiatry 2018; 4:52-69. [PMID: 29998118 DOI: 10.1159/000488031] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 02/27/2018] [Indexed: 12/18/2022]
Abstract
While accounting for only 2% of the body's weight, the brain utilizes up to 20% of the body's total energy. Not surprisingly, metabolic dysfunction and energy supply-and-demand mismatch have been implicated in a variety of neurological and psychiatric disorders. Mitochondria are responsible for providing the brain with most of its energetic demands, and the brain uses glucose as its exclusive energy source. Exploring the role of mitochondrial dysfunction in the etiology of psychiatric disease is a promising avenue to investigate further. Genetic analysis of mitochondrial activity is a cornerstone in understanding disease pathogenesis related to metabolic dysfunction. In concert with neuroimaging and pathological study, genetics provides an important bridge between biochemical findings and clinical correlates in psychiatric disease. Mitochondrial genetics has several unique aspects to its analysis, and corresponding special considerations. Here, we review the components of mitochondrial genetic analysis - nuclear DNA, mitochon-drial DNA, mitochondrial pathways, pseudogenes, nuclear-mitochondrial mismatch, and microRNAs - that could contribute to an observable clinical phenotype. Throughout, we highlight psychiatric diseases that can arise due to dysfunction in these processes, with a focus on schizophrenia and bipolar disorder.
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Affiliation(s)
- Ari B Cuperfain
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada.,Neuroscience Section, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Zhi Lun Zhang
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada.,Neuroscience Section, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - James L Kennedy
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada.,Neuroscience Section, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Vanessa F Gonçalves
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada.,Neuroscience Section, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
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14
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Gonçalves VF, Cappi C, Hagen CM, Sequeira A, Vawter MP, Derkach A, Zai CC, Hedley PL, Bybjerg-Grauholm J, Pouget JG, Cuperfain AB, Sullivan PF, Christiansen M, Kennedy JL, Sun L. A Comprehensive Analysis of Nuclear-Encoded Mitochondrial Genes in Schizophrenia. Biol Psychiatry 2018; 83:780-789. [PMID: 29628042 PMCID: PMC7168759 DOI: 10.1016/j.biopsych.2018.02.1175] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 02/26/2018] [Accepted: 02/27/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND The genetic risk factors of schizophrenia (SCZ), a severe psychiatric disorder, are not yet fully understood. Multiple lines of evidence suggest that mitochondrial dysfunction may play a role in SCZ, but comprehensive association studies are lacking. We hypothesized that variants in nuclear-encoded mitochondrial genes influence susceptibility to SCZ. METHODS We conducted gene-based and gene-set analyses using summary association results from the Psychiatric Genomics Consortium Schizophrenia Phase 2 (PGC-SCZ2) genome-wide association study comprising 35,476 cases and 46,839 control subjects. We applied the MAGMA method to three sets of nuclear-encoded mitochondrial genes: oxidative phosphorylation genes, other nuclear-encoded mitochondrial genes, and genes involved in nucleus-mitochondria crosstalk. Furthermore, we conducted a replication study using the iPSYCH SCZ sample of 2290 cases and 21,621 control subjects. RESULTS In the PGC-SCZ2 sample, 1186 mitochondrial genes were analyzed, among which 159 had p values < .05 and 19 remained significant after multiple testing correction. A meta-analysis of 818 genes combining the PGC-SCZ2 and iPSYCH samples resulted in 104 nominally significant and nine significant genes, suggesting a polygenic model for the nuclear-encoded mitochondrial genes. Gene-set analysis, however, did not show significant results. In an in silico protein-protein interaction network analysis, 14 mitochondrial genes interacted directly with 158 SCZ risk genes identified in PGC-SCZ2 (permutation p = .02), and aldosterone signaling in epithelial cells and mitochondrial dysfunction pathways appeared to be overrepresented in this network of mitochondrial and SCZ risk genes. CONCLUSIONS This study provides evidence that specific aspects of mitochondrial function may play a role in SCZ, but we did not observe its broad involvement even using a large sample.
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Affiliation(s)
- Vanessa F Gonçalves
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada; Neuroscience Section, Centre for Addiction and Mental Health, Toronto, Ontario, Canada.
| | - Carolina Cappi
- Department of Psychiatry, University of São Paulo, School of Medicine, Brazil
| | - Christian M Hagen
- Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark
| | - Adolfo Sequeira
- Department of Psychiatry and Human Behavior, University of California, Irvine, USA
| | - Marquis P Vawter
- Department of Psychiatry and Human Behavior, University of California, Irvine, USA
| | - Andriy Derkach
- Department of Statistical Sciences, Faculty of Arts and Science, University of Toronto, Toronto, Canada
| | - Clement C Zai
- Department of Psychiatry, University of Toronto, Toronto, Canada,Neuroscience Section, Centre for Addiction and Mental Health, Toronto, Canada
| | - Paula L Hedley
- Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark
| | | | - Jennie G Pouget
- Department of Psychiatry, University of Toronto, Toronto, Canada,Neuroscience Section, Centre for Addiction and Mental Health, Toronto, Canada
| | - Ari B. Cuperfain
- Department of Psychiatry, University of Toronto, Toronto, Canada,Neuroscience Section, Centre for Addiction and Mental Health, Toronto, Canada
| | - Patrick F Sullivan
- Department of Genetics, University of North Carolina, Chapel Hill, North Carolina, USA;,Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Michael Christiansen
- Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark,Department of Biomedical Science, University of Copenhagen, Copenhagen, Denmark
| | - James L Kennedy
- Department of Psychiatry, University of Toronto, Toronto, Canada,Neuroscience Section, Centre for Addiction and Mental Health, Toronto, Canada,Corresponding author: Vanessa F Gonçalves ()
| | - Lei Sun
- Department of Statistical Sciences, Faculty of Arts and Science, University of Toronto, Toronto, Canada,Biostatistics Division, Dalla Lana School of Public Health, University of Toronto, Toronto, Canada,Corresponding author: Vanessa F Gonçalves ()
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15
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Gonçalves VF, Giamberardino SN, Crowley JJ, Vawter MP, Saxena R, Bulik CM, Yilmaz Z, Hultman CM, Sklar P, Kennedy JL, Sullivan PF, Knight J. Examining the role of common and rare mitochondrial variants in schizophrenia. PLoS One 2018; 13:e0191153. [PMID: 29370225 PMCID: PMC5784966 DOI: 10.1371/journal.pone.0191153] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 12/30/2017] [Indexed: 12/17/2022] Open
Abstract
Oxidative phosphorylation within mitochondria is the main source of aerobic energy for neuronal functioning, and the key genes are located in mitochondrial DNA. Deficits in oxidative phosphorylation functioning have been reported for schizophrenia, but efforts in the identification of genetic markers within the mitochondrial DNA that predispose to schizophrenia have been limited. We genotyped a set of mitochondrial SNPs using Illumina HumanExome arrays and tested for association in the Swedish schizophrenia sample (N> 10,000). We developed a novel approach for mitochondrial DNA imputation in order to increase the number of common SNPs available for association analysis. The most significant findings were for the mitochondrial SNPs C15452A (GRCh38.p10; rs527236209; p = 0.007; gene MT-CYB; defining haplogroup JT); A11251G (rs869096886; p = 0.007; gene MT-ND4; defining haplogroup JT), and T4216C (rs1599988; p = 0.008, gene MT-ND1, defining haplogroup R2'JT). We also conducted rare variant burden analyses and obtained a p-value of 0.007. For multimarker haplotypes analysis, the most significant finding was for the J group (OR: 0.86, p = 0.02). We conducted the largest association study of mitochondrial DNA variants and schizophrenia but did not find an association that survived multiple testing correction. Analysis of a larger sample is required and will allow a better understanding of the role of mitochondria in schizophrenia.
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Affiliation(s)
- Vanessa F Gonçalves
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada
- * E-mail:
| | | | - James J. Crowley
- Department of Genetics, University of North Carolina, Chapel Hill, NC, United States of America
| | - Marquis P. Vawter
- Functional Genomics Laboratory, Department of Psychiatry and Human Behavior, University of California, Irvine, CA, United States of America
| | - Richa Saxena
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, United States of America
| | - Cynthia M. Bulik
- Department of Psychiatry, University of North Carolina, Chapel Hill, NC, United States of America
- Department of Nutrition, University of North Carolina, Chapel Hill, NC, United States of America
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Zeynep Yilmaz
- Department of Psychiatry, University of North Carolina, Chapel Hill, NC, United States of America
| | - Christina M. Hultman
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Pamela Sklar
- Division of Psychiatric Genomics, Department of Psychiatry, Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America
| | - James L. Kennedy
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - Patrick F. Sullivan
- Department of Genetics, University of North Carolina, Chapel Hill, NC, United States of America
- Department of Psychiatry, University of North Carolina, Chapel Hill, NC, United States of America
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Jo Knight
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
- Biostatistics Division, Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
- Data Science Institute and Medical School, Lancaster University, Bailrigg, Lancaster, LA1 4YW, United Kingdom
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16
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Pouget JG, Gonçalves VF, Spain SL, Finucane HK, Raychaudhuri S, Kennedy JL, Knight J. Genome-Wide Association Studies Suggest Limited Immune Gene Enrichment in Schizophrenia Compared to 5 Autoimmune Diseases. Schizophr Bull 2016; 42:1176-84. [PMID: 27242348 PMCID: PMC4988748 DOI: 10.1093/schbul/sbw059] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
There has been intense debate over the immunological basis of schizophrenia, and the potential utility of adjunct immunotherapies. The major histocompatibility complex is consistently the most powerful region of association in genome-wide association studies (GWASs) of schizophrenia and has been interpreted as strong genetic evidence supporting the immune hypothesis. However, global pathway analyses provide inconsistent evidence of immune involvement in schizophrenia, and it remains unclear whether genetic data support an immune etiology per se. Here we empirically test the hypothesis that variation in immune genes contributes to schizophrenia. We show that there is no enrichment of immune loci outside of the MHC region in the largest genetic study of schizophrenia conducted to date, in contrast to 5 diseases of known immune origin. Among 108 regions of the genome previously associated with schizophrenia, we identify 6 immune candidates (DPP4, HSPD1, EGR1, CLU, ESAM, NFATC3) encoding proteins with alternative, nonimmune roles in the brain. While our findings do not refute evidence that has accumulated in support of the immune hypothesis, they suggest that genetically mediated alterations in immune function may not play a major role in schizophrenia susceptibility. Instead, there may be a role for pleiotropic effects of a small number of immune genes that also regulate brain development and plasticity. Whether immune alterations drive schizophrenia progression is an important question to be addressed by future research, especially in light of the growing interest in applying immunotherapies in schizophrenia.
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Affiliation(s)
- Jennie G. Pouget
- *To whom correspondence should be addressed; Centre for Addiction and Mental Health, 250 College Street, Toronto, Ontario M5T 1R8, Canada; tel: 416-535-8501, fax: 416-979-4666, e-mail:
| | - Vanessa F. Gonçalves
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada;,Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | | | - Sarah L. Spain
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK;,Division of Genetics and Molecular Medicine, King’s College London, London, UK
| | - Hilary K. Finucane
- Department of Mathematics, Massachusetts Institute of Technology, Cambridge, MA;,Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA
| | | | | | - Jo Knight
- Biostatistics Division, Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada;,Lancaster Medical School and Data Science Institute, Lancaster University, Lancaster, UK
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17
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Gonçalves VF, Silva AM, Baesse CQ, Melo C. Frugivory and potential of birds as dispersers of Siparuna guianensis. BRAZ J BIOL 2015; 75:300-4. [PMID: 26132011 DOI: 10.1590/1519-6984.11413] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Accepted: 12/12/2013] [Indexed: 11/22/2022] Open
Abstract
Siparuna guianensis is a neotropical tree species, found both on edge and interior of forest fragments, mainly on understory and regeneration areas. The fruit are zoochorous with a sweet aril. This work aims to determine the bird species that eat the fruits of S. guianensis in a semi deciduous forest fragment in Brazilian Cerrado and measure which species have the highest potential as seed dispersers. Seven individuals of S. guianensis were sampled, totaling 69 hours. A hundred and fifty four visits were registered by seven species of birds. Antilophia galeata had the biggest potential as seed dispersal agent. Antilophia galeata, Lanio penicillatus and Dacnis cayana can be important seed dispersers, since they have a high consumption and visitation rate. The consumption of S. guianensis by species of different feeding guilds can be an important strategy for dispersal of plant species in regeneration habitats, raising the chances of an effective dispersal.
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Affiliation(s)
- V F Gonçalves
- Instituto de Biologia, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | - A M Silva
- Instituto de Biologia, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | - C Q Baesse
- Instituto de Biologia, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | - C Melo
- Instituto de Biologia, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
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Zai CC, Gonçalves VF, Tiwari AK, Gagliano SA, Hosang G, de Luca V, Shaikh SA, King N, Chen Q, Xu W, Strauss J, Breen G, Lewis CM, Farmer AE, McGuffin P, Knight J, Vincent JB, Kennedy JL. A genome-wide association study of suicide severity scores in bipolar disorder. J Psychiatr Res 2015; 65:23-9. [PMID: 25917933 DOI: 10.1016/j.jpsychires.2014.11.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Revised: 10/16/2014] [Accepted: 11/13/2014] [Indexed: 10/24/2022]
Abstract
BACKGROUND Suicide claims one million lives worldwide annually, making it a serious public health concern. The risk for suicidal behaviour can be partly explained by genetic factors, as suggested by twin and family studies (reviewed in (Zai et al. 2012)). Recently, genome-wide association studies (GWASs) of suicide attempt on large samples of bipolar disorder (BD) patients from multiple sites have identified a number of novel candidate genes. GWASs of suicide behaviour severity, from suicidal ideation to serious suicide attempt, have not been reported for BD. METHODS We conducted a GWAS of suicide behaviour severity in three independent BD samples:212 small nuclear families with BD probands from Toronto, Canada, 428 BD cases from Toronto, and 483 BD cases from the UK. We carried out imputation with 1000 Genome Project data as reference using IMPUTE2. Quality control and data analysis was conducted using PLINK and R. We conducted the quantitative analyses of suicide behaviour severity in the three samples separately, and derived an overall significance by a meta-analysis using the METAL software. RESULTS We did not find genome-wide significant association of any tested markers in any of the BD samples, but we found a number of suggestive associations, including regions on chromosomes 8 and 10 (p < 1e-5). CONCLUSIONS Our GWAS findings suggest that likely many gene variants of small effects contribute collectively to the risk for suicidal behaviour severity in BD. Larger independent replications are required to strengthen the findings from the GWAS presented here.
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Affiliation(s)
- Clement C Zai
- Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Vanessa F Gonçalves
- Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Arun K Tiwari
- Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Sarah A Gagliano
- Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Institute of Medical Science, University of Toronto, Ontario, Canada
| | - Georgina Hosang
- Department of Psychology, Goldsmiths, University of London, New Cross, London, United Kingdom; MRC Social, Genetic & Developmental Psychiatry Centre, King's College London, London, United Kingdom
| | - Vincenzo de Luca
- Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada; Institute of Medical Science, University of Toronto, Ontario, Canada
| | - Sajid A Shaikh
- Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Nicole King
- Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Qian Chen
- Cancer Care Ontario, Toronto, Ontario, Canada
| | - Wei Xu
- Dalla Lana School of Public Health, University of Toronto, Ontario, Canada; Ontario Cancer Institute, Prince Margaret Hospital, Toronto, Ontario, Canada
| | - John Strauss
- Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Gerome Breen
- MRC Social, Genetic & Developmental Psychiatry Centre, King's College London, London, United Kingdom
| | - Cathryn M Lewis
- MRC Social, Genetic & Developmental Psychiatry Centre, King's College London, London, United Kingdom
| | - Anne E Farmer
- MRC Social, Genetic & Developmental Psychiatry Centre, King's College London, London, United Kingdom
| | - Peter McGuffin
- MRC Social, Genetic & Developmental Psychiatry Centre, King's College London, London, United Kingdom
| | - Jo Knight
- Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada; Institute of Medical Science, University of Toronto, Ontario, Canada
| | - John B Vincent
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada; Institute of Medical Science, University of Toronto, Ontario, Canada; Molecular Neuropsychiatry and Development Laboratory (MiND), Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - James L Kennedy
- Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada; Institute of Medical Science, University of Toronto, Ontario, Canada.
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Fonseka TM, Tiwari AK, Gonçalves VF, Lieberman JA, Meltzer HY, Goldstein BI, Kennedy JL, Kennedy SH, Müller DJ. The role of genetic variation across IL-1β, IL-2, IL-6, and BDNF in antipsychotic-induced weight gain. World J Biol Psychiatry 2015; 16:45-56. [PMID: 25560300 DOI: 10.3109/15622975.2014.984631] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES Antipsychotics with high weight gain-inducing propensities influence the expression of immune and neurotrophin genes, which have been independently related to obesity indices. Thus, we investigated whether variants in the genes encoding interleukin (IL)-1β, IL-2, and IL-6 and brain-derived neurotrophic factor (BDNF) Val66Met are associated with antipsychotic-induced weight gain (AIWG). METHODS Nineteen polymorphisms were genotyped using Taqman(®) assays in 188 schizophrenia patients on antipsychotic treatment for up to 14 weeks. Mean weight change (%) from baseline was compared across genotypic groups using analysis of covariance (ANCOVA). Epistatic effects between cytokine polymorphisms and BDNF Val66Met were tested using Model-Based Multifactor Dimensionality Reduction. RESULTS In European patients, IL-1β rs16944*GA (P = 0.013, Pcorrected = 0.182), IL-1β rs1143634*G (P = 0.001, Pcorrected = 0.014), and BDNF Val66Met (Val/Val, P = 0.004, Pcorrected = 0.056) were associated with greater AIWG, as were IL-1β rs4849127*A (P = 0.049, Pcorrected = 0.784), and IL-1β rs16944*GA (P = 0.012, Pcorrected = 0.192) in African Americans. BDNF Val66Met interacted with both IL-1β rs13032029 (Val/Met+ TT, PPerm = 0.029), and IL-6 rs2069837 (Val/Val+ AA, PPerm = 0.021) in Europeans, in addition to IL-1β rs16944 (Val/Val+ GA, PPerm = 0.006) in African Americans. CONCLUSIONS SNPs across IL-1β and BDNF Val66Met may influence AIWG. Replication of these findings in larger, independent samples is warranted.
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Affiliation(s)
- Trehani M Fonseka
- Pharmacogenetics Research Clinic, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health & Department of Psychiatry, University of Toronto , Toronto, ON , Canada
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20
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Pouget JG, Gonçalves VF, Nurmi EL, P Laughlin C, Mallya KS, McCracken JT, Aman MG, McDougle CJ, Scahill L, Misener VL, Tiwari AK, Zai CC, Brandl EJ, Felsky D, Leung AQ, Lieberman JA, Meltzer HY, Potkin SG, Niedling C, Steimer W, Leucht S, Knight J, Müller DJ, Kennedy JL. Investigation of TSPO variants in schizophrenia and antipsychotic treatment outcomes. Pharmacogenomics 2015; 16:5-22. [DOI: 10.2217/pgs.14.158] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: TSPO is a neuroinflammatory biomarker and emerging therapeutic target in psychiatric disorders. We evaluated whether TSPO polymorphisms contribute to interindividual variability in schizophrenia, antipsychotic efficacy and antipsychotic-induced weight gain. Patients & methods: We analyzed TSPO polymorphisms in 670 schizophrenia cases and 775 healthy controls. Gene–gene interactions between TSPO and other mitochondrial membrane protein-encoding genes (VDAC1 and ANT1) were explored. Positive findings were evaluated in two independent samples (Munich, n = 300; RUPP, n = 119). Results: TSPO rs6971 was independently associated with antipsychotic-induced weight gain in the discovery (puncor = 0.04) and RUPP samples (p = 3.00 × 10-3), and interacted with ANT1 rs10024068 in the discovery (p = 1.15 × 10-3) and RUPP samples (p = 2.76 × 10-4). Conclusion: Our findings highlight TSPO as a candidate for future investigations of antipsychotic-induced weight gain, and support the involvement of mitochondrial membrane components in this serious treatment side effect. Original submitted 20 August 2014; Revision submitted 3 November 2014
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Affiliation(s)
- Jennie G Pouget
- • Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction & Mental Health, Toronto, ON, Canada
- • Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
- • Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Vanessa F Gonçalves
- • Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction & Mental Health, Toronto, ON, Canada
- • Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Erika L Nurmi
- • Department of Psychiatry & Biobehavioral Sciences, UCLA Semel Institute, Los Angeles, CA, USA
| | - Christopher P Laughlin
- • Department of Psychiatry & Biobehavioral Sciences, UCLA Semel Institute, Los Angeles, CA, USA
| | - Karyn S Mallya
- • Department of Psychiatry & Biobehavioral Sciences, UCLA Semel Institute, Los Angeles, CA, USA
| | - James T McCracken
- • Department of Psychiatry & Biobehavioral Sciences, UCLA Semel Institute, Los Angeles, CA, USA
| | - Michael G Aman
- • Department of Psychiatry, Ohio State University, OH, USA
| | | | | | - Virginia L Misener
- • Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction & Mental Health, Toronto, ON, Canada
| | - Arun K Tiwari
- • Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction & Mental Health, Toronto, ON, Canada
| | - Clement C Zai
- • Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction & Mental Health, Toronto, ON, Canada
- • Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Eva J Brandl
- • Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction & Mental Health, Toronto, ON, Canada
- • Department of Psychiatry & Psychotherapy, Campus Mitte, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Daniel Felsky
- • Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction & Mental Health, Toronto, ON, Canada
- • Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
- • Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Amy Q Leung
- • Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction & Mental Health, Toronto, ON, Canada
| | - Jeffrey A Lieberman
- • Department of Psychiatry, College of Physicians & Surgeons, Columbia University, NY, USA
- • New York State Psychiatric Institute, New York, NY, USA
| | - Herbert Y Meltzer
- • Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Steven G Potkin
- • Brain Imaging Centre, Irvine Hall, University of California, Irvine, CA, USA
| | - Charlotte Niedling
- • Institut für Klinische Chemie und Pathobiochemie, Klinikum rechts der Isar, TU-München, Germany
| | - Werner Steimer
- • Institut für Klinische Chemie und Pathobiochemie, Klinikum rechts der Isar, TU-München, Germany
| | - Stefan Leucht
- • Psychiatrische Klinik und Poliklinik, Klinikum rechts der Isar, TU-München, Germany
| | - Jo Knight
- • Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction & Mental Health, Toronto, ON, Canada
- • Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
- • Department of Psychiatry, University of Toronto, Toronto, ON, Canada
- • Biostatistics Division, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Daniel J Müller
- • Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction & Mental Health, Toronto, ON, Canada
- • Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
- • Department of Psychiatry, University of Toronto, Toronto, ON, Canada
- • Pharmacogenetics Research Clinic, Centre for Addiction & Mental Health, Toronto, ON, Canada
| | - James L Kennedy
- • Neurogenetics Section, Campbell Family Mental Health Research Institute, Centre for Addiction & Mental Health, Toronto, ON, Canada
- • Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
- • Department of Psychiatry, University of Toronto, Toronto, ON, Canada
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Malaspinas AS, Lao O, Schroeder H, Rasmussen M, Raghavan M, Moltke I, Campos PF, Sagredo FS, Rasmussen S, Gonçalves VF, Albrechtsen A, Allentoft ME, Johnson PLF, Li M, Reis S, Bernardo DV, DeGiorgio M, Duggan AT, Bastos M, Wang Y, Stenderup J, Moreno-Mayar JV, Brunak S, Sicheritz-Ponten T, Hodges E, Hannon GJ, Orlando L, Price TD, Jensen JD, Nielsen R, Heinemeier J, Olsen J, Rodrigues-Carvalho C, Lahr MM, Neves WA, Kayser M, Higham T, Stoneking M, Pena SDJ, Willerslev E. Two ancient human genomes reveal Polynesian ancestry among the indigenous Botocudos of Brazil. Curr Biol 2014; 24:R1035-7. [PMID: 25455029 PMCID: PMC4370112 DOI: 10.1016/j.cub.2014.09.078] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Understanding the peopling of the Americas remains an important and challenging question. Here, we present (14)C dates, and morphological, isotopic and genomic sequence data from two human skulls from the state of Minas Gerais, Brazil, part of one of the indigenous groups known as 'Botocudos'. We find that their genomic ancestry is Polynesian, with no detectable Native American component. Radiocarbon analysis of the skulls shows that the individuals had died prior to the beginning of the 19th century. Our findings could either represent genomic evidence of Polynesians reaching South America during their Pacific expansion, or European-mediated transport.
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Affiliation(s)
- Anna-Sapfo Malaspinas
- Centre for GeoGenetics, Natural History Museum of Denmark, Øster Voldgade 5-7, 1350 Copenhagen K, Denmark
| | - Oscar Lao
- Department of Forensic Molecular Biology, Erasmus MC University Medical Center Rotterdam, PO Box 2040, 3000 CA Rotterdam, Netherlands
| | - Hannes Schroeder
- Centre for GeoGenetics, Natural History Museum of Denmark, Øster Voldgade 5-7, 1350 Copenhagen K, Denmark; Faculty of Archaeology, Leiden University, PO Box 9515, 2300 Leiden, The Netherlands
| | - Morten Rasmussen
- Centre for GeoGenetics, Natural History Museum of Denmark, Øster Voldgade 5-7, 1350 Copenhagen K, Denmark; Department of Genetics, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Maanasa Raghavan
- Centre for GeoGenetics, Natural History Museum of Denmark, Øster Voldgade 5-7, 1350 Copenhagen K, Denmark
| | - Ida Moltke
- Department of Human Genetics, The University of Chicago, Chicago, Illinois 60637, USA; The Bioinformatics Centre, Department of Biology, University of Copenhagen, Ole Maaløesvej 5, Copenhagen 2200, Denmark
| | - Paula F Campos
- Centre for GeoGenetics, Natural History Museum of Denmark, Øster Voldgade 5-7, 1350 Copenhagen K, Denmark
| | - Francisca Santana Sagredo
- Oxford Radiocarbon Accelerator Unit, Research Laboratory for Archaeology and the History of Art, South Parks Road, Dyson Perrins Building, Oxford University, OX1 3QY, UK
| | - Simon Rasmussen
- Center for Biological Sequence Analysis, Department of Systems Biology, Technical University of Denmark, Kemitorvet 208, Kgs. Lyngby, DK-2800, Denmark
| | - Vanessa F Gonçalves
- Centre for Addiction and Mental Health, Toronto, Canada, Department of Psychiatry, University of Toronto, Toronto, Canada
| | - Anders Albrechtsen
- The Bioinformatics Centre, Department of Biology, University of Copenhagen, Ole Maaløesvej 5, Copenhagen 2200, Denmark
| | - Morten E Allentoft
- Centre for GeoGenetics, Natural History Museum of Denmark, Øster Voldgade 5-7, 1350 Copenhagen K, Denmark
| | - Philip L F Johnson
- Department of Biology, Emory University, 1510 Clifton Rd NE, Rm 2006, Atlanta, GA 30322
| | - Mingkun Li
- Max Planck Institute for Evolutionary Anthropology, Department of Evolutionary Genetics, Deutscher Platz 6, D-04103 Leipzig, Germany
| | - Silvia Reis
- Setor de Antropologia Biológica, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Danilo V Bernardo
- Instituto de Ciências Humanas e da Informação - ICHI, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil
| | - Michael DeGiorgio
- Department of Biology, Pennsylvania State University, 502 Wartik Laboratory, University Park, Pennsylvania 16802, USA
| | - Ana T Duggan
- Max Planck Institute for Evolutionary Anthropology, Department of Evolutionary Genetics, Deutscher Platz 6, D-04103 Leipzig, Germany
| | - Murilo Bastos
- Setor de Antropologia Biológica, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Yong Wang
- Centre for Theoretical Evolutionary Genomics, Departments of Integrative Biology and Statistics, University of California, Berkeley, CA 94720-3140; Ancestry.com DNA LLC, San Francisco, CA 94107, USA
| | - Jesper Stenderup
- Centre for GeoGenetics, Natural History Museum of Denmark, Øster Voldgade 5-7, 1350 Copenhagen K, Denmark
| | - J Victor Moreno-Mayar
- Centre for GeoGenetics, Natural History Museum of Denmark, Øster Voldgade 5-7, 1350 Copenhagen K, Denmark
| | - Søren Brunak
- Center for Biological Sequence Analysis, Department of Systems Biology, Technical University of Denmark, Kemitorvet 208, Kgs. Lyngby, DK-2800, Denmark
| | - Thomas Sicheritz-Ponten
- Center for Biological Sequence Analysis, Department of Systems Biology, Technical University of Denmark, Kemitorvet 208, Kgs. Lyngby, DK-2800, Denmark
| | - Emily Hodges
- Watson School of Biological Sciences, Cold Spring Harbor Laboratory, 1 Bungtown Road, Cold Spring Harbor, NY 11724, USA, Howard Hughes Medical Institute
| | - Gregory J Hannon
- Watson School of Biological Sciences, Cold Spring Harbor Laboratory, 1 Bungtown Road, Cold Spring Harbor, NY 11724, USA, Howard Hughes Medical Institute
| | - Ludovic Orlando
- Centre for GeoGenetics, Natural History Museum of Denmark, Øster Voldgade 5-7, 1350 Copenhagen K, Denmark
| | - T Douglas Price
- Department of Anthropology 5240 W.H. Sewell Social Science Building 1180 Observatory Dr. University of Wisconsin Madison, WI 53706, USA
| | - Jeffrey D Jensen
- Ecole Polytechnique Fédérale de Lausanne (EPFL), School of Life Sciences, Station 15, CH-1015 Lausanne, Switzerland
| | - Rasmus Nielsen
- Centre for GeoGenetics, Natural History Museum of Denmark, Øster Voldgade 5-7, 1350 Copenhagen K, Denmark; Centre for Theoretical Evolutionary Genomics, Departments of Integrative Biology and Statistics, University of California, Berkeley, CA 94720-3140
| | - Jan Heinemeier
- AMS 14C Dating Centre, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, Denmark
| | - Jesper Olsen
- AMS 14C Dating Centre, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, Denmark
| | - Claudia Rodrigues-Carvalho
- Setor de Antropologia Biológica, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marta Mirazón Lahr
- LCHES, Department of Archaeology and Anthropology, University of Cambridge, Fitzwilliam St, Cambridge CB2 1QH, UK
| | - Walter A Neves
- Laboratory for Human Evolutionary Studies, Department of Genetics and Evolutionary Biology, Institute of Bioscience, University of São Paulo, Brazil
| | - Manfred Kayser
- Department of Forensic Molecular Biology, Erasmus MC University Medical Center Rotterdam, PO Box 2040, 3000 CA Rotterdam, Netherlands
| | - Thomas Higham
- Oxford Radiocarbon Accelerator Unit, Research Laboratory for Archaeology and the History of Art, South Parks Road, Dyson Perrins Building, Oxford University, OX1 3QY, UK
| | - Mark Stoneking
- Max Planck Institute for Evolutionary Anthropology, Department of Evolutionary Genetics, Deutscher Platz 6, D-04103 Leipzig, Germany.
| | - Sergio D J Pena
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Brazil.
| | - Eske Willerslev
- Centre for GeoGenetics, Natural History Museum of Denmark, Øster Voldgade 5-7, 1350 Copenhagen K, Denmark.
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Bani-Fatemi A, Gonçalves VF, Zai C, de Souza R, Le Foll B, Kennedy JL, Wong AH, De Luca V. Analysis of CpG SNPs in 34 genes: association test with suicide attempt in schizophrenia. Schizophr Res 2013; 147:262-8. [PMID: 23684163 DOI: 10.1016/j.schres.2013.04.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Revised: 04/13/2013] [Accepted: 04/15/2013] [Indexed: 10/26/2022]
Abstract
BACKGROUND Suicide is the act of intentionally causing one's own death. The lifetime suicide risk in schizophrenia is 4.9% and 20% to 50% of patients with SCZ will attempt suicide during their life. The other risk factors for suicidal behavior in schizophrenia include prior history of suicide attempts, active psychosis, depression and substance abuse. To date, there are no robust genetic or epigenetic predictors of suicide or suicide attempt in this specific population. METHODS We collected detailed clinical information and DNA samples from 241 schizophrenia patients and performed the genetic analyses in suicide attempters and non-attempters, among these patients. Using the structured research interview, we determined the presence of suicide attempt lifetime and then we tested 384 DNA variants in candidate genes supposed to be involved in the neurobiology of schizophrenia. We applied a novel mapping analysis using a specific bioinformatic tool that analyzed only the polymorphic CpG sites in our SNP panel. This analysis looked at the presence or absence of methylation sites affected by the SNP allele. The SNPs in the candidate genes were studied under a different perspective considering their direct contribution to the availability of methylation sites within the gene of interest. The level of potential methylation was compared using a linear model in attempters and non-attempters. RESULTS Among the 384 SNPs selected from the Illumina Bead Chip only the rs2661319 in the RGS4 gene was significantly associated with suicide attempt (p = 0.002). There were 119 CpG SNPs in the aforementioned panel. The gene-wise potential methylation level of RGS4 was 55% in the attempters and 65% in the non-attempters with a p-value of 0.005. The total level of potential metylation in the overall panel (119 SNPs combined) was not associated with suicide attempt. However, when considering the potential methylation at chromosome 1, we found that suicide attempt (p = 0.036) was associated with lower methylation. DISCUSSION The overall results showed no strong association between CpG SNPs and suicide attempt but the information regarding the CpG SNP potential methylation could be used as covariate in future methylation analysis.
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Affiliation(s)
- Ali Bani-Fatemi
- CAMH, Department of Psychiatry, University of Toronto, Canada
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Gonçalves VF, Parra FC, Gonçalves-Dornelas H, Rodrigues-Carvalho C, Silva HP, Pena SD. Recovering mitochondrial DNA lineages of extinct Amerindian nations in extant homopatric Brazilian populations. Investig Genet 2010; 1:13. [PMID: 21122100 PMCID: PMC3014906 DOI: 10.1186/2041-2223-1-13] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2010] [Accepted: 12/01/2010] [Indexed: 11/19/2022]
Abstract
Background Brazilian Amerindians have experienced a drastic population decrease in the past 500 years. Indeed, many native groups from eastern Brazil have vanished. However, their mitochondrial mtDNA haplotypes, still persist in Brazilians, at least 50 million of whom carry Amerindian mitochondrial lineages. Our objective was to test whether, by analyzing extant rural populations from regions anciently occupied by specific Amerindian groups, we could identify potentially authentic mitochondrial lineages, a strategy we have named 'homopatric targeting'. Results We studied 173 individuals from Queixadinha, a small village located in a territory previously occupied by the now extinct Botocudo Amerindian nation. Pedigree analysis revealed 74 unrelated matrilineages, which were screened for Amerindian mtDNA lineages by restriction fragment length polymorphism. A cosmopolitan control group was composed of 100 individuals from surrounding cities. All Amerindian lineages identified had their hypervariable segment HVSI sequenced, yielding 13 Amerindian haplotypes in Queixadinha, nine of which were not present in available databanks or in the literature. Among these haplotypes, there was a significant excess of haplogroup C (70%) and absence of haplogroup A lineages, which were the most common in the control group. The novelty of the haplotypes and the excess of the C haplogroup suggested that we might indeed have identified Botocudo lineages. To validate our strategy, we studied teeth extracted from 14 ancient skulls of Botocudo Amerindians from the collection of the National Museum of Rio de Janeiro. We recovered mtDNA sequences from all the teeth, identifying only six different haplotypes (a low haplotypic diversity of 0.8352 ± 0.0617), one of which was present among the lineages observed in the extant individuals studied. Conclusions These findings validate the technique of homopatric targeting as a useful new strategy to study the peopling and colonization of the New World, especially when direct analysis of genetic material is not possible.
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Affiliation(s)
- Vanessa F Gonçalves
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, 31270-910 Belo Horizonte, Brazil
| | - Flavia C Parra
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, 31270-910 Belo Horizonte, Brazil
| | - Higgor Gonçalves-Dornelas
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, 31270-910 Belo Horizonte, Brazil
| | | | - Hilton P Silva
- Museu Nacional do Rio de Janeiro, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Sergio Dj Pena
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, 31270-910 Belo Horizonte, Brazil
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24
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Gonçalves VF, Carvalho CMB, Bortolini MC, Bydlowski SP, Pena SDJ. The phylogeography of African Brazilians. Hum Hered 2007; 65:23-32. [PMID: 17652961 DOI: 10.1159/000106059] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2007] [Accepted: 05/14/2007] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Approximately four million Africans were taken as slaves to Brazil, where they interbred extensively with Amerindians and Europeans. We have previously shown that while most White Brazilians carry Y chromosomes of European origin, they display high proportions of African and Amerindian mtDNA lineages, because of sex-biased genetic admixture. METHODS We studied the Y chromosome and mtDNA haplogroup structure of 120 Black males from Sao Paulo, Brazil. RESULTS Only 48% of the Y chromosomes, but 85% of the mtDNA haplogroups were characteristic of sub-Saharan Africa, confirming our previous observation of sexually biased mating. We mined literature data for mtDNA and Y chromosome haplogroup frequencies for African native populations from regions involved in Atlantic Slave Trade. Principal Components Analysis and Bayesian analysis of population structure revealed no genetic differentiation of Y chromosome marker frequencies between the African regions. However, mtDNA examination unraveled considerable genetic structure, with three clusters at Central-West Africa, West Africa and Southeast Africa. A hypothesis is proposed to explain this structure. CONCLUSION Using these mtDNA data we could obtain for the first time an estimate of the relative ancestral contribution of Central-West (0.445), West (0.431) and Southeast Africa (0.123) to African Brazilians from Sao Paulo. These estimates are consistent with historical information.
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Affiliation(s)
- Vanessa F Gonçalves
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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Gonçalves VF, Prosdocimi F, Santos LS, Ortega JM, Pena SDJ. Sex-biased gene flow in African Americans but not in American Caucasians. Genet Mol Res 2007; 6:256-61. [PMID: 17573655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
We have previously shown evidence of strong sex-biased genetic blending in the founding and ongoing history of the Brazilian population, with the African and Amerindian contribution being highest from maternal lineages (as measured by mitochondrial DNA) and the European contribution foremost from paternal lineages (estimated from Y-chromosome haplogroups). The same phenomenon has been observed in several other Latin American countries, suggesting that it might constitute a universal characteristic of the Iberian colonization of the Americas. However, it has also recently been detected in the Black population of the United States. We thus wondered if the same could be observed in American Caucasians. To answer that question, we retrieved 1387 hypervariable I Caucasian mitochondrial DNA sequences from the FBI population database and established their haplogroups and continental geographical sources. In sharp contrast with the situation of the Caucasian population of Latin American countries, only 3.1% of the American Caucasian sequences had African and/or Amerindian origin. To explain this discrepancy we propose that the finding of elevated genomic contributions from European males and Amerindian or African females depends not only on the occurrence of directional mating, but also on the "racial" categorization of the children born from these relations. In this respect, social practices in Latin America and in the United States diverge considerably; in the former socially significant "races" are normally designated according to physical appearance, while in the latter descent appears to be the most important factor.
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Affiliation(s)
- V F Gonçalves
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
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de Freitas JM, Augusto-Pinto L, Pimenta JR, Bastos-Rodrigues L, Gonçalves VF, Teixeira SMR, Chiari E, Junqueira ÂCV, Fernandes O, Macedo AM, Machado CR, Pena SDJ. Ancestral genomes, sex, and the population structure of Trypanosoma cruzi. PLoS Pathog 2006; 2:e24. [PMID: 16609729 PMCID: PMC1434789 DOI: 10.1371/journal.ppat.0020024] [Citation(s) in RCA: 191] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2005] [Accepted: 02/21/2006] [Indexed: 01/02/2023] Open
Abstract
Acquisition of detailed knowledge of the structure and evolution of Trypanosoma cruzi populations is essential for control of Chagas disease. We profiled 75 strains of the parasite with five nuclear microsatellite loci, 24Salpha RNA genes, and sequence polymorphisms in the mitochondrial cytochrome oxidase subunit II gene. We also used sequences available in GenBank for the mitochondrial genes cytochrome B and NADH dehydrogenase subunit 1. A multidimensional scaling plot (MDS) based in microsatellite data divided the parasites into four clusters corresponding to T. cruzi I (MDS-cluster A), T. cruzi II (MDS-cluster C), a third group of T. cruzi strains (MDS-cluster B), and hybrid strains (MDS-cluster BH). The first two clusters matched respectively mitochondrial clades A and C, while the other two belonged to mitochondrial clade B. The 24Salpha rDNA and microsatellite profiling data were combined into multilocus genotypes that were analyzed by the haplotype reconstruction program PHASE. We identified 141 haplotypes that were clearly distributed into three haplogroups (X, Y, and Z). All strains belonging to T. cruzi I (MDS-cluster A) were Z/Z, the T. cruzi II strains (MDS-cluster C) were Y/Y, and those belonging to MDS-cluster B (unclassified T. cruzi) had X/X haplogroup genotypes. The strains grouped in the MDS-cluster BH were X/Y, confirming their hybrid character. Based on these results we propose the following minimal scenario for T. cruzi evolution. In a distant past there were at a minimum three ancestral lineages that we may call, respectively, T. cruzi I, T. cruzi II, and T. cruzi III. At least two hybridization events involving T. cruzi II and T. cruzi III produced evolutionarily viable progeny. In both events, the mitochondrial recipient (as identified by the mitochondrial clade of the hybrid strains) was T. cruzi II and the mitochondrial donor was T. cruzi III.
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Affiliation(s)
- Jorge M. de Freitas
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Luiz Augusto-Pinto
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Juliana R Pimenta
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Luciana Bastos-Rodrigues
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Vanessa F Gonçalves
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Santuza M. R Teixeira
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Egler Chiari
- Departamento de Parasitologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Octavio Fernandes
- Departamento de Medicina Tropical, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Andréa M Macedo
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Carlos Renato Machado
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Sérgio D. J Pena
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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Rey LC, Barbosa LM, Osterno CL, Ramalho IL, Vilar DC, Memória AM, Vieira LC, Gonçalves VF. [Serologic survey of rubella in the pre-vaccine era in child-care centers, schools and maternity units of Fortaleza]. J Pediatr (Rio J) 1998; 74:467-72. [PMID: 14685590 DOI: 10.2223/jped.470] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
OBJECTIVES: To identify rubella prevalence in different ages and population groups and rubella susceptibility of pregnant and postpartum women according to age, number of children and spontaneous abortion. METHODS: Cross-sectional study of sero-survey type. Children and students were selected in day-care centers and schools distributed by health districts of Fortaleza. Pregnant and postpartum healthy women were recruited in two large maternity units and three antenatal clinics; individuals previously vaccinated and presenting chronic or acute diseases where excluded. Written consent was obtained from participants or their caretakers. Anti-rubella IgG qualitative detection was performed with an Elisa-sandwich assay. RESULTS: Mean age-specific sero-prevalence rates of 999 samples were: 2 to 5 years= 59% (136/231); 6 to 9 years= 47% (95/204); 10 to 19 years= 56% (243/432) and 20 to 39 years= 80% (106/132). The mean age of 187 pregnant and postpartum women was 23 years (10-39) with a sero-prevalence of 76% (142/187), where 62% sero-positives aged 15 to 19 and 83% aged 26 to 39 years. A higher sero-prevalence was related to womeńs age (p<0.001), history of spontaneous abortion (p= 0.03), and two or more children (p=0.01). CONCLUSIONS: The high sero-prevalence of rubella in preschool age children reflects the intense viral transmission in child-care centers. The high susceptibility in adolescents (45%), among whom pregnancy is common, emphasizes the need to introduce rubella vaccine early and keep high immunization coverages in youngsters in order to eradicate congenital rubella syndrome. Also, postpartum routine immunization against rubella in this age group is of particular benefit.
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Affiliation(s)
- L C Rey
- Universidade Federal do Ceará (UFC), Fortaleza, CE, Brazil
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Simi AC, Pereira CM, Gonçalves VF. [Chronic intestinal ischemia]. AMB Rev Assoc Med Bras 1979; 25:365-9. [PMID: 317675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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