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Sandin S, Yip BHK, Yin W, Weiss LA, Dougherty JD, Fass S, Constantino JN, Hailin Z, Turner TN, Marrus N, Gutmann DH, Sanders SJ, Christoffersson B. Examining Sex Differences in Autism Heritability. JAMA Psychiatry 2024; 81:673-680. [PMID: 38630491 PMCID: PMC11024771 DOI: 10.1001/jamapsychiatry.2024.0525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 02/01/2024] [Indexed: 04/20/2024]
Abstract
Importance Autism spectrum disorder (ASD) is a neurodevelopmental disorder more prevalent in males than in females. The cause of ASD is largely genetic, but the association of genetics with the skewed sex ratio is not yet understood. To our knowledge, no large population-based study has provided estimates of heritability by sex. Objective To estimate the sex-specific heritability of ASD. Design, Setting, and Participants This was a population-based, retrospective analysis using national health registers of nontwin siblings and cousins from Sweden born between January 1, 1985, and December 31, 1998, with follow-up to 19 years of age. Data analysis occurred from August 2022 to November 2023. Main Outcomes and Measures Models were fitted to estimate the relative variance in risk for ASD occurrence owing to sex-specific additive genetics, shared environmental effects, and a common residual term. The residual term conceptually captured other factors that promote individual behavioral variation (eg, maternal effects, de novo variants, rare genetic variants not additively inherited, or gene-environment interactions). Estimates were adjusted for differences in prevalence due to birth year and maternal and paternal age by sex. Results The sample included 1 047 649 individuals in 456 832 families (538 283 males [51.38%]; 509 366 females [48.62%]). Within the entire sample, 12 226 (1.17%) received a diagnosis of ASD, comprising 8128 (1.51%) males and 4098 (0.80%) females. ASD heritability was estimated at 87.0% (95% CI, 81.4%-92.6%) for males and 75.7% (95% CI, 68.4%-83.1%) for females with a difference in heritability estimated at 11.3% (95% CI, 1.0%-21.6%). There was no support for shared environmental contributions. Conclusions and Relevance These findings suggest that the degree of phenotypic variation attributable to genetic differences (heritability) differs between males and females, indicating that some of the underlying causes of the condition may differ between the 2 sexes. The skewed sex ratio in ASD may be partly explained by differences in genetic variance between the sexes.
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Affiliation(s)
- Sven Sandin
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York
- Seaver Autism Center for Research and Treatment at Mount Sinai, New York, New York
| | - Benjamin H. K. Yip
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong SAR
| | - Weiyao Yin
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Lauren A. Weiss
- Institute for Human Genetics, University of California San Francisco
- Department of Psychiatry and Behavioral Sciences, University of California San Francisco
- Weill Institute for Neurosciences, University of California San Francisco
| | - Joseph D. Dougherty
- Department of Genetics, Washington University School of Medicine, St Louis, Missouri
- Department of Psychiatry, Washington University School of Medicine, St Louis, Missouri
- Intellectual and Developmental Disabilities Research Center, Washington University School of Medicine, St Louis, Missouri
| | - Stuart Fass
- Department of Psychiatry, Washington University School of Medicine, St Louis, Missouri
| | - John N. Constantino
- Pediatric Institute, Emory University School of Medicine, Atlanta, Georgia
- Children’s Healthcare of Atlanta, Atlanta, Georgia
| | - Zhu Hailin
- Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong SAR
| | - Tychele N. Turner
- Department of Genetics, Washington University School of Medicine, St Louis, Missouri
- Intellectual and Developmental Disabilities Research Center, Washington University School of Medicine, St Louis, Missouri
| | - Natasha Marrus
- Department of Psychiatry, Washington University School of Medicine, St Louis, Missouri
| | - David H. Gutmann
- Department of Neurology, Washington University School of Medicine, St Louis, Missouri
- Neurofibromatosis Center, Washington University School of Medicine, St Louis, Missouri
| | - Stephan J. Sanders
- Institute of Developmental and Regenerative Medicine, Department of Paediatrics, University of Oxford, Oxford, United Kingdom
- Department of Psychiatry and Behavioral Sciences, UCSF Weill Institute for Neurosciences, University of California, San Francisco
| | - Benjamin Christoffersson
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Churney ApS, Copenhagen, Denmark
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Sun W, Wu X, Yang H, Yuan S, Chen J, Fang Y, Zhang X. Identifying causal associations between women's reproductive traits and risk of schizophrenia: a multivariate validated two-sample Mendelian randomization analysis. BMC Psychiatry 2024; 24:161. [PMID: 38395764 PMCID: PMC10893634 DOI: 10.1186/s12888-024-05614-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 02/15/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND A significant association between women's reproductive traits and the risk of schizophrenia (SCZ) has been discovered, but the causalities remain unclear. We designed a two-sample univariate Mendelian randomization (MR) study using female-specific SNPs collected from a large-scale genome-wide association study as a genetic tool to explore the causal effect of female reproductive traits on the risk of SCZ, and conducted a multivariate MR study to re-validate the above findings. METHODS From extensive genome-wide association studies (GWAS) of people with European ancestry (n = 176,881 to 418,758 individuals), summary-level data on five female reproductive variables were extracted. Summary-level information on SCZ was taken from a GWAS meta-analysis involving 320,404 people with European ancestry. The inverse variance weighting estimations for both univariable MR (UVMR) and multivariable MR (MVMR) were presented as the primary results. MR-Egger, weighted median, simple mode, and weighted mode regression methods for UVMR, and MVMR-Egger, MVMR-Lasso, and MVMR-median methods for MVMR were used for sensitivity analyses. RESULTS The UVMR produced compelling proof for a connection between genetically predicted later age at first sexual intercourse (AFS) (OR, 0.632; 95% CI, 0.512-0.777; P < 0.01) and decreased SCZ risk. Pleiotropy analysis of the AFS-SCZ association confirmed the robustness of the MR results (P > 0.05). Consistent, substantial causal effects of AFS (OR, 0.592; 95%CI, 0.407-0.862; P < 0.01) on the risk of SCZ were demonstrated after adjusting for body mass index, years of schooling, and smoking initiation using MVMR. CONCLUSIONS Our findings provide convincing evidence that early AFS is a risk factor for SCZ. SCZ risk may be decreased by raising awareness of reproductive healthcare for women.
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Affiliation(s)
- Wenxi Sun
- Suzhou Guangji Hospital, Suzhou, Jiangsu Province; Affiliated Guangji Hospital of Soochow University, Suzhou, 215137, Jiangsu Province, China
| | - Xiaohui Wu
- Clinical Research Center & Division of Mood Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Haidong Yang
- Department of Psychiatry, The Fourth People's Hospital of Lianyungang, The Affiliated KangDa College of Nanjing Medical University, Lianyungang, 222003, People's Republic of China
| | - Shiting Yuan
- Suzhou Guangji Hospital, Suzhou, Jiangsu Province; Affiliated Guangji Hospital of Soochow University, Suzhou, 215137, Jiangsu Province, China
| | - Jun Chen
- Clinical Research Center & Division of Mood Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Yiru Fang
- Clinical Research Center & Division of Mood Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China.
- Department of Psychiatry & Affective Disorders Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Xiaobin Zhang
- Suzhou Guangji Hospital, Suzhou, Jiangsu Province; Affiliated Guangji Hospital of Soochow University, Suzhou, 215137, Jiangsu Province, China.
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Miyahara K, Tatehana M, Kikkawa T, Osumi N. Investigating the impact of paternal aging on murine sperm miRNA profiles and their potential link to autism spectrum disorder. Sci Rep 2023; 13:20608. [PMID: 38062235 PMCID: PMC10703820 DOI: 10.1038/s41598-023-47878-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 11/17/2023] [Indexed: 12/18/2023] Open
Abstract
Paternal aging has consistently been linked to an increased risk of neurodevelopmental disorders, including autism spectrum disorder (ASD), in offspring. Recent evidence has highlighted the involvement of epigenetic factors. In this study, we aimed to investigate age-related alterations in microRNA (miRNA) profiles of mouse sperm and analyze target genes regulated by differentially expressed miRNAs (DEmiRNAs). Microarray analyses were conducted on sperm samples from mice at different ages: 3 months (3 M), over 12 M, and beyond 20 M. We identified 26 miRNAs with differential expression between the 3 and 20 M mice, 34 miRNAs between the 12 and 20 M mice, and 2 miRNAs between the 3 and 12 M mice. The target genes regulated by these miRNAs were significantly associated with apoptosis/ferroptosis pathways and the nervous system. We revealed alterations in sperm miRNA profiles due to aging and suggest that the target genes regulated by these DEmiRNAs are associated with apoptosis and the nervous system, implying a potential link between paternal aging and an increased risk of neurodevelopmental disorders such as ASD. The observed age-related changes in sperm miRNA profiles have the potential to impact sperm quality and subsequently affect offspring development.
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Affiliation(s)
- Kazusa Miyahara
- Department of Developmental Neuroscience, Center for Advanced Research and Translational Medicine (ART), Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Misako Tatehana
- Department of Developmental Neuroscience, Center for Advanced Research and Translational Medicine (ART), Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takako Kikkawa
- Department of Developmental Neuroscience, Center for Advanced Research and Translational Medicine (ART), Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Noriko Osumi
- Department of Developmental Neuroscience, Center for Advanced Research and Translational Medicine (ART), Tohoku University Graduate School of Medicine, Sendai, Japan.
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Baker BH, Zhang S, Simon JM, McLarnan SM, Chung WK, Pearson BL. Environmental carcinogens disproportionally mutate genes implicated in neurodevelopmental disorders. Front Neurosci 2023; 17:1106573. [PMID: 37599994 PMCID: PMC10435087 DOI: 10.3389/fnins.2023.1106573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 07/17/2023] [Indexed: 08/22/2023] Open
Abstract
Introduction De novo mutations contribute to a large proportion of sporadic psychiatric and developmental disorders, yet the potential role of environmental carcinogens as drivers of causal de novo mutations in neurodevelopmental disorders is poorly studied. Methods To explore environmental mutation vulnerability of disease-associated gene sets, we analyzed publicly available whole genome sequencing datasets of mutations in human induced pluripotent stem cell clonal lines exposed to 12 classes of environmental carcinogens, and human lung cancers from individuals living in highly polluted regions. We compared observed rates of exposure-induced mutations in disease-related gene sets with the expected rates of mutations based on control genes randomly sampled from the genome using exact binomial tests. To explore the role of sequence characteristics in mutation vulnerability, we modeled the effects of sequence length, gene expression, and percent GC content on mutation rates of entire genes and gene coding sequences using multivariate Quasi-Poisson regressions. Results We demonstrate that several mutagens, including radiation and polycyclic aromatic hydrocarbons, disproportionately mutate genes related to neurodevelopmental disorders including autism spectrum disorders, schizophrenia, and attention deficit hyperactivity disorder. Other disease genes including amyotrophic lateral sclerosis, Alzheimer's disease, congenital heart disease, orofacial clefts, and coronary artery disease were generally not mutated more than expected. Longer sequence length was more strongly associated with elevated mutations in entire genes compared with mutations in coding sequences. Increased expression was associated with decreased coding sequence mutation rate, but not with the mutability of entire genes. Increased GC content was associated with increased coding sequence mutation rates but decreased mutation rates in entire genes. Discussion Our findings support the possibility that neurodevelopmental disorder genetic etiology is partially driven by a contribution of environment-induced germ line and somatic mutations.
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Affiliation(s)
- Brennan H. Baker
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, United States
| | - Shaoyi Zhang
- Master of Public Health Program, Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, United States
| | - Jeremy M. Simon
- Department of Genetics and Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Sarah M. McLarnan
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, United States
| | - Wendy K. Chung
- Department of Pediatrics and Medicine, Columbia University Irving Medical Center, New York, NY, United States
| | - Brandon L. Pearson
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, United States
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5
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Wood KA, Goriely A. The impact of paternal age on new mutations and disease in the next generation. Fertil Steril 2022; 118:1001-1012. [PMID: 36351856 PMCID: PMC10909733 DOI: 10.1016/j.fertnstert.2022.10.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/09/2022] [Accepted: 10/11/2022] [Indexed: 11/09/2022]
Abstract
Advanced paternal age is associated with an increased risk of fathering children with genetic disorders and other adverse reproductive consequences. However, the mechanisms underlying this phenomenon remain largely unexplored. In this review, we focus on the impact of paternal age on de novo mutations that are an important contributor to genetic disease and can be studied both indirectly through large-scale sequencing studies and directly in the tissue in which they predominantly arise-the aging testis. We discuss the recent data that have helped establish the origins and frequency of de novo mutations, and highlight experimental evidence about the close link between new mutations, parental age, and genetic disease. We then focus on a small group of rare genetic conditions, the so-called "paternal age effect" disorders that show a strong association between paternal age and disease prevalence, and discuss the underlying mechanism ("selfish selection") and implications of this process in more detail. More broadly, understanding the causes and consequences of paternal age on genetic risk has important implications both for individual couples and for public health advice given that the average age of fatherhood is steadily increasing in many developed nations.
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Affiliation(s)
- Katherine A Wood
- Radcliffe Department of Medicine, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom; National Institute for Health and Care Research (NIHR) Oxford Biomedical Research Centre, Oxford, United Kingdom
| | - Anne Goriely
- Radcliffe Department of Medicine, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom; National Institute for Health and Care Research (NIHR) Oxford Biomedical Research Centre, Oxford, United Kingdom.
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6
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Wang SH, Wu CS, Hsu LY, Lin MC, Chen PC, Thompson WK, Fan CC. Paternal age and 13 psychiatric disorders in the offspring: a population-based cohort study of 7 million children in Taiwan. Mol Psychiatry 2022; 27:5244-5254. [PMID: 36042285 DOI: 10.1038/s41380-022-01753-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 08/02/2022] [Accepted: 08/12/2022] [Indexed: 01/14/2023]
Abstract
Although paternal age has been linked to certain psychiatric disorders, the nature of any causal relationship remains elusive. Here, we aimed to comprehensively assess the magnitude of a wide range of offspring's psychiatric risk conferred by paternal age, leveraging a pedigree inferred from covered-insurance relationship (accuracy >98%) in Taiwan's single-payer compulsory insurance program. We also examined whether there is an independent role of paternal age and explored the potential effect of parental age difference. A total cohort of 7,264,788 individuals born between 1980 and 2018 were included; 5,572,232 with sibling(s) were selected for sibling-comparison analyses and 1,368,942 and 1,044,420 children with information of paternal-grandparents and maternal-grandparents, respectively, were selected for multi-generation analyses. Using inpatient/outpatient claims data (1997-2018), we identified schizophrenia, autism, bipolar disorder (BPD), attention deficit-hyperactivity disorder (ADHD), major depressive disorder (MDD), eating disorder (ED), substance use disorder (SUD), mental retardation (MR), tic disorder, obsessive-compulsive disorder (OCD), anxiety, and somatoform disorder. We identified suicides using death certificates. Logistic regression analysis was used to estimate the paternal/maternal/grand-paternal age association with psychiatric risk in the offspring. The total cohort and sibling-comparison cohort resulted in similar estimates. Paternal age had a U-shaped relationship with offspring's MDD, ED, SUD, and anxiety. A very young maternal age (<20 years) was associated with markedly higher risk in offspring's SUD, MR, and suicide. Older paternal age (>25 years) was linearly associated with offspring's schizophrenia, autism, BPD, ADHD, MDD, ED, SUD, MR, OCD, anxiety, and suicide. Older grand-paternal age was linearly associated with offspring's schizophrenia, autism, ADHD, and MR. Dissimilar parental age was positively associated with offspring's ADHD, MDD, SUD, MR, anxiety, and suicide, and negatively associated with offspring's OCD. This comprehensive assessment provides solid evidence for the independent role of paternal age in psychiatric risk in the offspring and clarifies the significance of both early parenthood and delayed paternity.
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Affiliation(s)
- Shi-Heng Wang
- Department of Occupational Safety and Health, College of Public Health, China Medical University, Taichung, Taiwan.
- Department of Public Health, College of Public Health, China Medical University, Taichung, Taiwan.
- Interdisciplinary Freshmen Program of Public Health, College of Public Health, China Medical University, Taichung, Taiwan.
| | - Chi-Shin Wu
- National Center for Geriatrics and Welfare Research, National Health Research Institutes, Miaoli, Taiwan
- Department of Psychiatry, National Taiwan University Hospital, Yunlin branch, Douliu, Taiwan
| | - Le-Yin Hsu
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
- Graduate Program of Data Science, National Taiwan University and Academia Sinica, Taipei, Taiwan
| | - Mei-Chen Lin
- Department of Occupational Safety and Health, College of Public Health, China Medical University, Taichung, Taiwan
- Interdisciplinary Freshmen Program of Public Health, College of Public Health, China Medical University, Taichung, Taiwan
| | - Pei-Chun Chen
- Department of Public Health, College of Public Health, China Medical University, Taichung, Taiwan
| | - Wesley K Thompson
- Center for Population Neuroscience and Genetics, Laureate Institute for Brain Research, Tulsa, OK, USA
| | - Chun-Chieh Fan
- Center for Population Neuroscience and Genetics, Laureate Institute for Brain Research, Tulsa, OK, USA
- Department of Radiology, School of Medicine, University of California San Diego, La Jolla, CA, USA
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7
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Song AY, Bakulski K, Feinberg JI, Newschaffer C, Croen LA, Hertz-Picciotto I, Schmidt RJ, Farzadegan H, Lyall K, Fallin MD, Volk HE, Ladd-Acosta C. Associations between accelerated parental biologic age, autism spectrum disorder, social traits, and developmental and cognitive outcomes in their children. Autism Res 2022; 15:2359-2370. [PMID: 36189953 PMCID: PMC9722613 DOI: 10.1002/aur.2822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 09/19/2022] [Indexed: 01/11/2023]
Abstract
Parental age is a known risk factor for autism spectrum disorder (ASD), however, studies to identify the biologic changes underpinning this association are limited. In recent years, "epigenetic clock" algorithms have been developed to estimate biologic age and to evaluate how the epigenetic aging impacts health and disease. In this study, we examined the relationship between parental epigenetic aging and their child's prospective risk of ASD and autism related quantitative traits in the Early Autism Risk Longitudinal Investigation study. Estimates of epigenetic age were computed using three robust clock algorithms and DNA methylation measures from the Infinium HumanMethylation450k platform for maternal blood and paternal blood specimens collected during pregnancy. Epigenetic age acceleration was defined as the residual of regressing chronological age on epigenetic age while accounting for cell type proportions. Multinomial logistic regression and linear regression models were completed adjusting for potential confounders for both maternal epigenetic age acceleration (n = 163) and paternal epigenetic age acceleration (n = 80). We found accelerated epigenetic aging in mothers estimated by Hannum's clock was significantly associated with lower cognitive ability and function in offspring at 12 months, as measured by Mullen Scales of Early Learning scores (β = -1.66, 95% CI: -3.28, -0.04 for a one-unit increase). We also observed a marginal association between accelerated maternal epigenetic aging by Horvath's clock and increased odds of ASD in offspring at 36 months of age (aOR = 1.12, 95% CI: 0.99, 1.26). By contrast, fathers accelerated aging was marginally associated with decreased ASD risk in their offspring (aOR = 0.83, 95% CI: 0.68, 1.01). Our findings suggest epigenetic aging could play a role in parental age risks on child brain development.
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Affiliation(s)
- Ashley Y. Song
- Department of Mental Health, Johns Hopkins Bloomberg School
of Public Health, Baltimore, MD
- Wendy Klag Center for Autism and Developmental
Disabilities, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Kelly Bakulski
- Department of Epidemiology, University of Michigan, Ann
Arbor, MI
| | - Jason I. Feinberg
- Department of Mental Health, Johns Hopkins Bloomberg School
of Public Health, Baltimore, MD
- Wendy Klag Center for Autism and Developmental
Disabilities, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Craig Newschaffer
- Department of Mental Health, Johns Hopkins Bloomberg School
of Public Health, Baltimore, MD
- College of Health and Human Development, Pennsylvania State
University, State College, PA
| | - Lisa A. Croen
- Division of Research, Kaiser Permanente, Oakland, CA
| | - Irva Hertz-Picciotto
- Department of Public Health Sciences and The MIND
Institute, School of Medicine, University of California-Davis, Davis, CA
| | - Rebecca J. Schmidt
- Department of Public Health Sciences and The MIND
Institute, School of Medicine, University of California-Davis, Davis, CA
| | - Homayoon Farzadegan
- Department of Epidemiology, Johns Hopkins Bloomberg School
of Public Health, Baltimore, MD
| | - Kristen Lyall
- A.J. Drexel Autism Institute, Drexel University,
Philadelphia, PA
| | - M. Daniele Fallin
- Rollins School of Public Health, Emory University, Atlanta,
Georgia, USA
| | - Heather E. Volk
- Department of Mental Health, Johns Hopkins Bloomberg School
of Public Health, Baltimore, MD
- Wendy Klag Center for Autism and Developmental
Disabilities, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Christine Ladd-Acosta
- Department of Mental Health, Johns Hopkins Bloomberg School
of Public Health, Baltimore, MD
- Wendy Klag Center for Autism and Developmental
Disabilities, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
- Department of Epidemiology, Johns Hopkins Bloomberg School
of Public Health, Baltimore, MD
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Oluwayiose OA, Houle E, Wu H, Whitcomb BW, Mumford SL, Schisterman EF, Suvorov A, Balzer LB, Pilsner JR. Urinary phthalate metabolites and their mixtures are associated with advanced sperm epigenetic aging in a general population. ENVIRONMENTAL RESEARCH 2022; 214:114115. [PMID: 35988832 DOI: 10.1016/j.envres.2022.114115] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 07/22/2022] [Accepted: 08/12/2022] [Indexed: 06/15/2023]
Abstract
INTRODUCTION We have recently shown that sperm epigenetic age (SEA), a surrogate measure of biological aging in sperm, is associated with couples' time-to-pregnancy (TTP). Advanced SEA was also observed among smokers, suggesting its susceptibility to environmental exposures. Therefore, we assessed the association between urinary phthalate metabolites and SEA in male partners of couples planning to conceive among the general population. METHOD The Longitudinal Investigation of Fertility and the Environment (LIFE) Study was a prospective multi-site and general population cohort study of couples who were interested in becoming pregnant. Among male partners (n = 333), eleven urinary phthalate metabolites were measured and SEA was previously developed using Super Learner ensemble algorithm. Multivariable linear regression was used to evaluate associations of SEA with individual metabolites. Bayesian kernel machine regression (BKMR), quantile g-computation (qgcomp) and weighted quantile sum (WQS) models were used for mixture analyses. Covariates included were BMI, cotinine, race and urinary creatinine. RESULT In the single metabolite multivariate analyses, nine (82%) phthalate metabolites displayed positive trends with SEA (range: 0.05-0.47 years). Of these metabolites, advanced SEA was significantly associated with interquartile range increases in exposure of three phthalates [MEHHP (β = 0.23, 95% CI: 0.03, 0.43, p = 0.03), MMP (β = 0.24, 95% CI: 0.01, 0.47, p = 0.04), and MiBP (β = 0.47, 95% CI: 0.14, 0.81, p = 0.01)]. Additionally, in BKMR and qgcomp (p = 0.06), but not WQS models, phthalate mixtures showed an overall positive trend with SEA, with MiBP, MMP and MBzP as major drivers of the mixture effects. CONCLUSION This is the first study that combined single exposure and mixture models to associate male phthalate exposures with advanced epigenetic aging of sperm in men planning to conceive among the general population. Our findings suggest that phthalate exposure may contribute to the acceleration of biological aging of sperm.
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Affiliation(s)
- Oladele A Oluwayiose
- C.S. Mott Center for Human Growth and Development, Department of Obstetrics and Gynecology, School of Medicine, Wayne State University, Detroit, MI, 48201, USA
| | - Emily Houle
- C.S. Mott Center for Human Growth and Development, Department of Obstetrics and Gynecology, School of Medicine, Wayne State University, Detroit, MI, 48201, USA
| | - Haotian Wu
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, 722 W 168th St, New York, NY, 10032, USA
| | - Brian W Whitcomb
- Department of Biostatistics and Epidemiology, School of Public Health and Health Sciences, University of Massachusetts Amherst, 715 North Pleasant Street, Amherst, MA, USA
| | - Sunni L Mumford
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Enrique F Schisterman
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Alexander Suvorov
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts Amherst, 686 North Pleasant Street, Amherst, MA, USA
| | - Laura B Balzer
- Department of Biostatistics and Epidemiology, School of Public Health and Health Sciences, University of Massachusetts Amherst, 715 North Pleasant Street, Amherst, MA, USA
| | - J Richard Pilsner
- C.S. Mott Center for Human Growth and Development, Department of Obstetrics and Gynecology, School of Medicine, Wayne State University, Detroit, MI, 48201, USA; Institute of Environmental Health Sciences, Wayne State University, Detroit, MI, 48201, USA.
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9
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Escher J, Yan W, Rissman EF, Wang HLV, Hernandez A, Corces VG. Beyond Genes: Germline Disruption in the Etiology of Autism Spectrum Disorders. J Autism Dev Disord 2022; 52:4608-4624. [PMID: 34596807 PMCID: PMC9035896 DOI: 10.1007/s10803-021-05304-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2021] [Indexed: 01/31/2023]
Abstract
Investigations into the etiology of autism spectrum disorders have been largely confined to two realms: variations in DNA sequence and somatic developmental exposures. Here we suggest a third route-disruption of the germline epigenome induced by exogenous toxicants during a parent's gamete development. Similar to cases of germline mutation, these molecular perturbations may produce dysregulated transcription of brain-related genes during fetal and early development, resulting in abnormal neurobehavioral phenotypes in offspring. Many types of exposures may have these impacts, and here we discuss examples of anesthetic gases, tobacco components, synthetic steroids, and valproic acid. Alterations in parental germline could help explain some unsolved phenomena of autism, including increased prevalence, missing heritability, skewed sex ratio, and heterogeneity of neurobiology and behavior.
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Affiliation(s)
- Jill Escher
- Escher Fund for Autism, 1590 Calaveras Avenue, San Jose, CA, USA.
| | - Wei Yan
- The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, USA
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Emilie F Rissman
- Center for Human Health and the Environment and Department of Biological Sciences, North Carolina State University, Raleigh, NC, USA
| | - Hsiao-Lin V Wang
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, USA
| | - Arturo Hernandez
- Maine Medical Center Research Institute, MaineHealth, Scarborough, ME, USA
- Tufts University School of Medicine, Boston, MA, USA
| | - Victor G Corces
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, USA
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10
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Antaki D, Guevara J, Maihofer AX, Klein M, Gujral M, Grove J, Carey CE, Hong O, Arranz MJ, Hervas A, Corsello C, Vaux KK, Muotri AR, Iakoucheva LM, Courchesne E, Pierce K, Gleeson JG, Robinson EB, Nievergelt CM, Sebat J. A phenotypic spectrum of autism is attributable to the combined effects of rare variants, polygenic risk and sex. Nat Genet 2022; 54:1284-1292. [PMID: 35654974 PMCID: PMC9474668 DOI: 10.1038/s41588-022-01064-5] [Citation(s) in RCA: 56] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 03/28/2022] [Indexed: 01/21/2023]
Abstract
The genetic etiology of autism spectrum disorder (ASD) is multifactorial, but how combinations of genetic factors determine risk is unclear. In a large family sample, we show that genetic loads of rare and polygenic risk are inversely correlated in cases and greater in females than in males, consistent with a liability threshold that differs by sex. De novo mutations (DNMs), rare inherited variants and polygenic scores were associated with various dimensions of symptom severity in children and parents. Parental age effects on risk for ASD in offspring were attributable to a combination of genetic mechanisms, including DNMs that accumulate in the paternal germline and inherited risk that influences behavior in parents. Genes implicated by rare variants were enriched in excitatory and inhibitory neurons compared with genes implicated by common variants. Our results suggest that a phenotypic spectrum of ASD is attributable to a spectrum of genetic factors that impact different neurodevelopmental processes.
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Affiliation(s)
- Danny Antaki
- Biomedical Sciences Graduate Program, University of California San Diego, La Jolla, CA, USA
- Beyster Center for Psychiatric Genomics, University of California San Diego, La Jolla, CA, USA
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA, USA
- Institute for Genomic Medicine, University of California San Diego, La Jolla, CA, USA
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA
| | - James Guevara
- Beyster Center for Psychiatric Genomics, University of California San Diego, La Jolla, CA, USA
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA
| | - Adam X Maihofer
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA
| | - Marieke Klein
- Beyster Center for Psychiatric Genomics, University of California San Diego, La Jolla, CA, USA
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA
| | - Madhusudan Gujral
- Beyster Center for Psychiatric Genomics, University of California San Diego, La Jolla, CA, USA
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA
| | - Jakob Grove
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- The Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, Aarhus, Denmark
- Center for Genomics and Personalized Medicine and Center for Integrative Sequencing, iSEQ, Aarhus, Denmark
- Bioinformatics Research Centre, Aarhus University, Aarhus, Denmark
| | - Caitlin E Carey
- Harvard T.H. Chan School of Public Health, Broad Institute of the Massachusetts Institute of Technology and Harvard, Cambridge, MA, USA
| | - Oanh Hong
- Beyster Center for Psychiatric Genomics, University of California San Diego, La Jolla, CA, USA
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA
| | - Maria J Arranz
- Research Laboratory Unit, Fundacio Docencia i Recerca Mutua, Terrassa, Spain
| | - Amaia Hervas
- Child and Adolescent Mental Health Unit, Hospital Universitari Mútua de Terrassa, Barcelona, Spain
| | - Christina Corsello
- TEACCH Autism Program, University of North Carolina, Chapel Hill, NC, USA
| | | | - Alysson R Muotri
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA, USA
- Institute for Genomic Medicine, University of California San Diego, La Jolla, CA, USA
- Department of Pediatrics and Department of Cellular & Molecular Medicine, University of California San Diego, School of Medicine, Center for Academic Research and Training in Anthropogeny, Archealization Center, Kavli Institute for Brain and Mind, La Jolla, CA, USA
| | - Lilia M Iakoucheva
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA
- Institute for Genomic Medicine, University of California San Diego, La Jolla, CA, USA
| | - Eric Courchesne
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA
- Autism Center of Excellence, University of California San Diego, La Jolla, CA, USA
| | - Karen Pierce
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA
- Autism Center of Excellence, University of California San Diego, La Jolla, CA, USA
| | - Joseph G Gleeson
- Institute for Genomic Medicine, University of California San Diego, La Jolla, CA, USA
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA
| | - Elise B Robinson
- Harvard T.H. Chan School of Public Health, Broad Institute of the Massachusetts Institute of Technology and Harvard, Cambridge, MA, USA
| | | | - Jonathan Sebat
- Beyster Center for Psychiatric Genomics, University of California San Diego, La Jolla, CA, USA.
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA.
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA, USA.
- Institute for Genomic Medicine, University of California San Diego, La Jolla, CA, USA.
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11
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Khachadourian V, Zaks N, Lin E, Reichenberg A, Janecka M. Reprint of: Advanced paternal age and risk of schizophrenia in offspring - Review of epidemiological findings and potential mechanisms. Schizophr Res 2022; 247:84-91. [PMID: 36085274 DOI: 10.1016/j.schres.2022.08.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 11/28/2022]
Abstract
A large number of studies have examined the association between advanced paternal age (APA) and risk of schizophrenia in offspring. Here we present an overview of epidemiological studies on this subject published since 2000, and systematically summarize their methodologies and results. Next, we discuss evidence to elucidate the potential mechanisms contributing to the association between APA and offspring schizophrenia, considering paternal psychiatric morbidity and genetic liability, maternal factors, and findings from family design studies. We propose that multiple mechanisms, including causal and non-causal pathways, contribute to the observed relationship between APA and schizophrenia in offspring, and conclude by highlighting the need for multi-disciplinary studies in disentangling these complex, non-mutually exclusive mechanisms.
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Affiliation(s)
- Vahe Khachadourian
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America; Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America; Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America.
| | - Nina Zaks
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America
| | - Emma Lin
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America; Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America
| | - Abraham Reichenberg
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America; Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America; Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America; Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America
| | - Magdalena Janecka
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America; Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America; Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America; Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America
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12
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Polga N, Macul Ferreira de Barros P, Farhat LC, de Almeida KM, Bloch MH, Lafer B. Parental age and the risk of bipolar disorder in the offspring: A systematic review and meta-analysis. Acta Psychiatr Scand 2022; 145:568-577. [PMID: 35188977 DOI: 10.1111/acps.13418] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 02/16/2022] [Accepted: 02/17/2022] [Indexed: 12/21/2022]
Abstract
OBJECTIVES Whether parental age, i.e., paternal or maternal, at childbirth is associated with the risk of bipolar disorder (BD) in offspring remains unclear. We conducted a meta-analysis of observational studies to address this gap. METHODS PubMed, PsycINFO, Embase, and Web of Science were searched up to June 2021. Studies investigating the associations between parental age at childbirth (exposure) and the risk of BD in offspring (outcome) were eligible for inclusion in our study. Paternal and maternal age were examined separately. Odds ratio (OR) was used as the effect size index. Data were pooled through random-effects meta-analyses. RESULTS Seven studies involving 3,183,539 participants and 23,253 individuals with BD were included in our meta-analyses. Meta-analyses indicated an increased risk of BD in the offspring of the older paternal age groups (35-44 years old [k = 5; OR = 1.09; 95% CI 1.05, 1.14; p < 0.0001] and ≥45 years old [k = 5; OR = 1.44; 95% CI 1.19, 1.14; p = 0.0001]) in comparison with the reference category (25-34 years old). Meta-analysis also indicated an increased risk of BD in the offspring of the older maternal age group (≥40 years old [k = 3; OR = 1.20; 95% CI 1.10, 1.31; p < 0.0001]) in comparison with the reference category (20-29 years old). CONCLUSIONS Advanced paternal and maternal age were both associated with an increased risk of BD in offspring. Further studies are needed to investigate the mechanisms behind this association.
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Affiliation(s)
- Natália Polga
- Health and Society Institute, Federal University of São Paulo, Santos, Brazil.,Department & Institute of Psychiatry, Faculdade de Medicina FMUSP, Universidade de Sao Paulo Medical School, Sao Paulo, Brazil
| | - Pedro Macul Ferreira de Barros
- Department & Institute of Psychiatry, Faculdade de Medicina FMUSP, Universidade de Sao Paulo Medical School, Sao Paulo, Brazil
| | - Luis C Farhat
- Department & Institute of Psychiatry, Faculdade de Medicina FMUSP, Universidade de Sao Paulo Medical School, Sao Paulo, Brazil
| | - Karla Mathias de Almeida
- Department & Institute of Psychiatry, Faculdade de Medicina FMUSP, Universidade de Sao Paulo Medical School, Sao Paulo, Brazil
| | - Michael H Bloch
- Yale Child Study Center, Yale School of Medicine, New Haven, Connecticut, USA.,Department of Psychiatry, Yale School of Medicine, New Haven, Connecticut, USA
| | - Beny Lafer
- Department & Institute of Psychiatry, Faculdade de Medicina FMUSP, Universidade de Sao Paulo Medical School, Sao Paulo, Brazil
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13
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A multifactorial model for the etiology of neuropsychiatric disorders: the role of advanced paternal age. Pediatr Res 2022; 91:757-770. [PMID: 33674740 DOI: 10.1038/s41390-021-01435-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 01/07/2021] [Accepted: 02/02/2021] [Indexed: 12/21/2022]
Abstract
Mental or neuropsychiatric disorders are widespread within our societies affecting one in every four people in the world. Very often the onset of a mental disorder (MD) occurs in early childhood and substantially reduces the quality of later life. Although the global burden of MDs is rising, mental health care is still suboptimal, partly due to insufficient understanding of the processes of disease development. New insights are needed to respond to this worldwide health problem. Next to the growing burden of MDs, there is a tendency to postpone pregnancy for various economic and practical reasons. In this review, we describe the current knowledge on the potential effect from advanced paternal age (APA) on development of autism spectrum disorder, schizophrenia, attention-deficit/hyperactivity disorder, bipolar disorder, obsessive-compulsive disorder, and Tourette syndrome. Although literature did not clearly define an age cut-off for APA, we here present a comprehensive multifactorial model for the development of MDs, including the role of aging, de novo mutations, epigenetic mechanisms, psychosocial environment, and selection into late fatherhood. Our model is part of the Paternal Origins of Health and Disease paradigm and may serve as a foundation for future epidemiological research designs. This blueprint will increase the understanding of the etiology of MDs and can be used as a practical guide for clinicians favoring early detection and developing a tailored treatment plan. Ultimately, this will help health policy practitioners to prevent the development of MDs and to inform health-care workers and the community about disease determinants. Better knowledge of the proportion of all risk factors, their interactions, and their role in the development of MDs will lead to an optimization of mental health care and management. IMPACT: We design a model of causation for MDs, integrating male aging, (epi)genetics, and environmental influences. It adds new insights into the current knowledge about associations between APA and MDs. In clinical practice, this comprehensive model may be helpful in early diagnosis and in treatment adopting a personal approach. It may help in identifying the proximate cause on an individual level or in a specific subpopulation. Besides the opportunity to measure the attributed proportions of risk factors, this model may be used as a blueprint to design prevention strategies for public health purposes.
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14
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An exploratory analysis of parental autism traits, age at conception and polygenic background in Autism Spectrum Disorders. REVISTA DE PSIQUIATRIA Y SALUD MENTAL 2021. [DOI: 10.1016/j.rpsm.2021.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Abstract
In the last 40 years, there has been a huge increase in autism genetics research and a rapidly growing number of discoveries. We now know autism is one of the most highly heritable disorders with negligible shared environmental contributions. Recent discoveries also show that rare variants of large effect size as well as small effect common gene variants all contribute to autism risk. These discoveries challenge traditional diagnostic boundaries and highlight huge heterogeneity in autism. In this review, we consider some of the key findings that are shaping current understanding of autism and what these discoveries mean for clinicians.
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Affiliation(s)
- Anita Thapar
- Division of Psychological Medicine and Clinical Neurosciences and MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, Hadyn Ellis Building, Cardiff, Maindy Road, Wales, CF24 4HQ, UK.
| | - Michael Rutter
- Social, Genetic and Developmental Psychiatry Centre, Kings College London, London, UK
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16
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Zaghi M, Banfi F, Bellini E, Sessa A. Rare Does Not Mean Worthless: How Rare Diseases Have Shaped Neurodevelopment Research in the NGS Era. Biomolecules 2021; 11:1713. [PMID: 34827709 PMCID: PMC8616022 DOI: 10.3390/biom11111713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/15/2021] [Accepted: 11/16/2021] [Indexed: 11/20/2022] Open
Abstract
The advent of next-generation sequencing (NGS) is heavily changing both the diagnosis of human conditions and basic biological research. It is now possible to dig deep inside the genome of hundreds of thousands or even millions of people and find both common and rare genomic variants and to perform detailed phenotypic characterizations of both physiological organs and experimental models. Recent years have seen the introduction of multiple techniques using NGS to profile transcription, DNA and chromatin modifications, protein binding, etc., that are now allowing us to profile cells in bulk or even at a single-cell level. Although rare and ultra-rare diseases only affect a few people, each of these diseases represent scholarly cases from which a great deal can be learned about the pathological and physiological function of genes, pathways, and mechanisms. Therefore, for rare diseases, state-of-the-art investigations using NGS have double valence: their genomic cause (new variants) and the characterize the underlining the mechanisms associated with them (discovery of gene function) can be found. In a non-exhaustive manner, this review will outline the main usage of NGS-based techniques for the diagnosis and characterization of neurodevelopmental disorders (NDDs), under whose umbrella many rare and ultra-rare diseases fall.
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Affiliation(s)
- Mattia Zaghi
- Stem Cell and Neurogenesis Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (M.Z.); (F.B.); (E.B.)
| | - Federica Banfi
- Stem Cell and Neurogenesis Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (M.Z.); (F.B.); (E.B.)
- CNR Institute of Neuroscience, 20129 Milan, Italy
| | - Edoardo Bellini
- Stem Cell and Neurogenesis Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (M.Z.); (F.B.); (E.B.)
| | - Alessandro Sessa
- Stem Cell and Neurogenesis Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (M.Z.); (F.B.); (E.B.)
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17
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Havdahl A, Niarchou M, Starnawska A, Uddin M, van der Merwe C, Warrier V. Genetic contributions to autism spectrum disorder. Psychol Med 2021; 51:2260-2273. [PMID: 33634770 PMCID: PMC8477228 DOI: 10.1017/s0033291721000192] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 01/14/2021] [Accepted: 01/18/2021] [Indexed: 12/12/2022]
Abstract
Autism spectrum disorder (autism) is a heterogeneous group of neurodevelopmental conditions characterized by early childhood-onset impairments in communication and social interaction alongside restricted and repetitive behaviors and interests. This review summarizes recent developments in human genetics research in autism, complemented by epigenetic and transcriptomic findings. The clinical heterogeneity of autism is mirrored by a complex genetic architecture involving several types of common and rare variants, ranging from point mutations to large copy number variants, and either inherited or spontaneous (de novo). More than 100 risk genes have been implicated by rare, often de novo, potentially damaging mutations in highly constrained genes. These account for substantial individual risk but a small proportion of the population risk. In contrast, most of the genetic risk is attributable to common inherited variants acting en masse, each individually with small effects. Studies have identified a handful of robustly associated common variants. Different risk genes converge on the same mechanisms, such as gene regulation and synaptic connectivity. These mechanisms are also implicated by genes that are epigenetically and transcriptionally dysregulated in autism. Major challenges to understanding the biological mechanisms include substantial phenotypic heterogeneity, large locus heterogeneity, variable penetrance, and widespread pleiotropy. Considerable increases in sample sizes are needed to better understand the hundreds or thousands of common and rare genetic variants involved. Future research should integrate common and rare variant research, multi-omics data including genomics, epigenomics, and transcriptomics, and refined phenotype assessment with multidimensional and longitudinal measures.
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Affiliation(s)
- A. Havdahl
- Nic Waals Institute, Lovisenberg Diaconal Hospital, Oslo, Norway
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway
- Department of Psychology, PROMENTA Research Center, University of Oslo, Oslo, Norway
| | - M. Niarchou
- Vanderbilt Genetics Institute, Vanderbilt University Medical Center, TN, USA
| | - A. Starnawska
- The Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, Denmark
- Department of Biomedicine, Aarhus University, Denmark
- Center for Genomics for Personalized Medicine, CGPM, and Center for Integrative Sequencing, iSEQ, Aarhus, Denmark
| | - M. Uddin
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, UAE
| | - C. van der Merwe
- Stanley Center for Psychiatric Research, The Broad Institute of MIT and Harvard, MA, USA
| | - V. Warrier
- Department of Psychiatry, Autism Research Centre, University of Cambridge, UK
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18
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Osumi N, Tatehana M. Transgenerational epigenetic information through the sperm: Sperm cells not just merely supply half of the genome for new life; they also seem to transmit additional information via epigenetic modifications. EMBO Rep 2021; 22:e53539. [PMID: 34288347 DOI: 10.15252/embr.202153539] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 06/29/2021] [Indexed: 12/17/2022] Open
Abstract
The biological cause for the increase in Autism Spectrum Disorder may be fathers' older age and the epigenetic marks it leaves on sperm cells.
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Affiliation(s)
- Noriko Osumi
- Department of Developmental Neuroscience, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Misako Tatehana
- Department of Developmental Neuroscience, Tohoku University Graduate School of Medicine, Sendai, Japan
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19
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Khachadourian V, Zaks N, Lin E, Reichenberg A, Janecka M. Advanced paternal age and risk of schizophrenia in offspring - Review of epidemiological findings and potential mechanisms. Schizophr Res 2021; 233:72-79. [PMID: 34242951 PMCID: PMC8380724 DOI: 10.1016/j.schres.2021.06.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 12/30/2022]
Abstract
A large number of studies have examined the association between advanced paternal age (APA) and risk of schizophrenia in offspring. Here we present an overview of epidemiological studies on this subject published since 2000, and systematically summarize their methodologies and results. Next, we discuss evidence to elucidate the potential mechanisms contributing to the association between APA and offspring schizophrenia, considering paternal psychiatric morbidity and genetic liability, maternal factors, and findings from family design studies. We propose that multiple mechanisms, including causal and non-causal pathways, contribute to the observed relationship between APA and schizophrenia in offspring, and conclude by highlighting the need for multi-disciplinary studies in disentangling these complex, non-mutually exclusive mechanisms.
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Affiliation(s)
- Vahe Khachadourian
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America; Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America; Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America.
| | - Nina Zaks
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America
| | - Emma Lin
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America; Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America
| | - Abraham Reichenberg
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America; Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America; Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America; Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America
| | - Magdalena Janecka
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America; Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America; Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America; Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America
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20
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Åsenius F, Danson AF, Marzi SJ. DNA methylation in human sperm: a systematic review. Hum Reprod Update 2021; 26:841-873. [PMID: 32790874 DOI: 10.1093/humupd/dmaa025] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 05/25/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Studies in non-human mammals suggest that environmental factors can influence spermatozoal DNA methylation, and some research suggests that spermatozoal DNA methylation is also implicated in conditions such as subfertility and imprinting disorders in the offspring. Together with an increased availability of cost-effective methods of interrogating DNA methylation, this premise has led to an increasing number of studies investigating the DNA methylation landscape of human spermatozoa. However, how the human spermatozoal DNA methylome is influenced by environmental factors is still unclear, as is the role of human spermatozoal DNA methylation in subfertility and in influencing offspring health. OBJECTIVE AND RATIONALE The aim of this systematic review was to critically appraise the quality of the current body of literature on DNA methylation in human spermatozoa, summarize current knowledge and generate recommendations for future research. SEARCH METHODS A comprehensive literature search of the PubMed, Web of Science and Cochrane Library databases was conducted using the search terms 'semen' OR 'sperm' AND 'DNA methylation'. Publications from 1 January 2003 to 2 March 2020 that studied human sperm and were written in English were included. Studies that used sperm DNA methylation to develop methodologies or forensically identify semen were excluded, as were reviews, commentaries, meta-analyses or editorial texts. The Grading of Recommendations, Assessment, Development and Evaluations (GRADE) criteria were used to objectively evaluate quality of evidence in each included publication. OUTCOMES The search identified 446 records, of which 135 were included in the systematic review. These 135 studies were divided into three groups according to area of research; 56 studies investigated the influence of spermatozoal DNA methylation on male fertility and abnormal semen parameters, 20 studies investigated spermatozoal DNA methylation in pregnancy outcomes including offspring health and 59 studies assessed the influence of environmental factors on spermatozoal DNA methylation. Findings from studies that scored as 'high' and 'moderate' quality of evidence according to GRADE criteria were summarized. We found that male subfertility and abnormal semen parameters, in particular oligozoospermia, appear to be associated with abnormal spermatozoal DNA methylation of imprinted regions. However, no specific DNA methylation signature of either subfertility or abnormal semen parameters has been convincingly replicated in genome-scale, unbiased analyses. Furthermore, although findings require independent replication, current evidence suggests that the spermatozoal DNA methylome is influenced by cigarette smoking, advanced age and environmental pollutants. Importantly however, from a clinical point of view, there is no convincing evidence that changes in spermatozoal DNA methylation influence pregnancy outcomes or offspring health. WIDER IMPLICATIONS Although it appears that the human sperm DNA methylome can be influenced by certain environmental and physiological traits, no findings have been robustly replicated between studies. We have generated a set of recommendations that would enhance the reliability and robustness of findings of future analyses of the human sperm methylome. Such studies will likely require multicentre collaborations to reach appropriate sample sizes, and should incorporate phenotype data in more complex statistical models.
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Affiliation(s)
| | - Amy F Danson
- German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Sarah J Marzi
- UK Dementia Research Institute, Imperial College London, London W12 0NN, UK.,Department of Brain Sciences, Imperial College London, London, UK
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21
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Spatiotemporal 7q11.23 protein network analysis implicates the role of DNA repair pathway during human brain development. Sci Rep 2021; 11:8246. [PMID: 33859276 PMCID: PMC8050238 DOI: 10.1038/s41598-021-87632-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 03/25/2021] [Indexed: 01/10/2023] Open
Abstract
Recurrent deletions and duplications of chromosome 7q11.23 copy number variants (CNVs) are associated with several psychiatric disorders. Although phenotypic abnormalities have been observed in patients, causal genes responsible for CNV-associated diagnoses and traits are still poorly understood. Furthermore, the targeted human brain regions, developmental stages, protein networks, and signaling pathways, influenced by this CNV remain unclear. Previous works showed GTF2I involved in Williams-Beuren syndrome, but pathways affected by GTF2I are indistinct. We first constructed dynamic spatiotemporal networks of 7q11.23 genes by combining data from the brain developmental transcriptome with physical interactions of 7q11.23 proteins. Topological changes were observed in protein-protein interaction (PPI) networks throughout different stages of brain development. Early and late fetal periods of development in the cortex, striatum, hippocampus, and amygdale were observed as the vital periods and regions for 7q11.23 CNV proteins. CNV proteins and their partners are significantly enriched in DNA repair pathway. As a driver gene, GTF2I interacted with PRKDC and BRCA1 to involve in DNA repair pathway. The physical interaction between GTF2I with PRKDC was confirmed experimentally by the liquid chromatography-tandem mass spectrometry (LC-MS/MS). We identified that early and late fetal periods are crucial for 7q11.23 genes to affect brain development. Our results implicate that 7q11.23 CNV genes converge on the DNA repair pathway to contribute to the pathogenesis of psychiatric diseases.
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22
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Higazi AM, Kamel HM, Abdel-Naeem EA, Abdullah NM, Mahrous DM, Osman AM. Expression analysis of selected genes involved in tryptophan metabolic pathways in Egyptian children with Autism Spectrum Disorder and learning disabilities. Sci Rep 2021; 11:6931. [PMID: 33767242 PMCID: PMC7994393 DOI: 10.1038/s41598-021-86162-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 03/07/2021] [Indexed: 01/31/2023] Open
Abstract
Autism Spectrum Disorder (ASD) and learning disabilities are neurodevelopmental disabilities characterized by dramatically increasing incidence rates, yet the exact etiology for these disabilities is not identified. Impairment in tryptophan metabolism has been suggested to participate in the pathogenesis of ASD, however, further validation of its involvement is required. Additionally, its role in learning disabilities is still uninvestigated. Our objective was to evaluate some aspects of tryptophan metabolism in ASD children (N = 45) compared to children with learning disabilities (N = 44) and healthy controls (N = 40) by measuring the expression levels of the MAOA, HAAO and AADAT genes using real-time RT-qPCR. We also aimed to correlate the expression patterns of these genes with parental ages at the time of childbirth, levels of serum iron, and vitamin D3 and zinc/copper ratio, as possible risk factors for ASD. Results demonstrated a significant decrease in the expression of the selected genes within ASD children (p < 0.001) relative to children with learning disabilities and healthy controls, which significantly associated with the levels of our targeted risk factors (p < 0.05) and negatively correlated to ASD scoring (p < 0.001). In conclusion, this study suggests that the expression of the MAOA, HAAO and AADAT genes may underpin the pathophysiology of ASD.
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Affiliation(s)
- Aliaa M. Higazi
- grid.411806.a0000 0000 8999 4945Clinical and Molecular Chemistry Unit, Department of Clinical and Chemical Pathology, Faculty of Medicine, Minia University, Minia, Egypt
| | - Hanan M. Kamel
- grid.411806.a0000 0000 8999 4945Clinical and Molecular Chemistry Unit, Department of Clinical and Chemical Pathology, Faculty of Medicine, Minia University, Minia, Egypt
| | - Emad A. Abdel-Naeem
- grid.411806.a0000 0000 8999 4945Immunology Unit, Department of Clinical and Chemical Pathology, Faculty of Medicine, Minia University, Minia, Egypt
| | - Noha M. Abdullah
- grid.411806.a0000 0000 8999 4945Clinical and Molecular Chemistry Unit, Department of Clinical and Chemical Pathology, Faculty of Medicine, Minia University, Minia, Egypt
| | - Doaa M. Mahrous
- grid.411806.a0000 0000 8999 4945Department of Pediatrics, Faculty of Medicine, Minia University, Minia, Egypt
| | - Ashraf M. Osman
- grid.411806.a0000 0000 8999 4945Clinical and Molecular Chemistry Unit, Department of Clinical and Chemical Pathology, Faculty of Medicine, Minia University, Minia, Egypt
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23
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Wilson S, Elkins IJ, Malone SM, Iacono WG, McGue M. Associations Between Common Forms of Psychopathology and Fecundity: Evidence From a Prospective, Longitudinal Twin Study. Clin Psychol Sci 2021; 9:197-209. [PMID: 34012724 PMCID: PMC8127725 DOI: 10.1177/2167702620957321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We examined associations between common psychiatric disorders and fecundity in a population-based cohort of 1252 twins prospectively assessed from adolescence into adulthood. Major depressive, anxiety, and alcohol use disorders were associated with lower likelihood of having children and having fewer children. Survival analyses yielded similar results accounting for timing/recurrence. Although both early- and adult-onset psychiatric disorders were associated with decreased fecundity, early-onset major depressive, anxiety (among boys), and alcohol use disorders (among girls) were associated with greater likelihood of having a child during adolescence. Among twin pairs discordant for psychiatric disorders, twins affected by anxiety and alcohol use, but not major depressive, disorders were less likely to have children than unaffected co-twins. However, unaffected twins with an affected co-twin were no more likely to have children than twins from unaffected twin pairs, inconsistent with the balancing selection hypothesis that increased fecundity in unaffected relatives accounts for persistence of psychiatric disorders.
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24
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Oluwayiose OA, Wu H, Saddiki H, Whitcomb BW, Balzer LB, Brandon N, Suvorov A, Tayyab R, Sites CK, Hill L, Marcho C, Pilsner JR. Sperm DNA methylation mediates the association of male age on reproductive outcomes among couples undergoing infertility treatment. Sci Rep 2021; 11:3216. [PMID: 33547328 PMCID: PMC7864951 DOI: 10.1038/s41598-020-80857-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 12/29/2020] [Indexed: 12/12/2022] Open
Abstract
Parental age at time of offspring conception is increasing in developed countries. Advanced male age is associated with decreased reproductive success and increased risk of adverse neurodevelopmental outcomes in offspring. Mechanisms for these male age effects remain unclear, but changes in sperm DNA methylation over time is one potential explanation. We assessed genome-wide methylation of sperm DNA from 47 semen samples collected from male participants of couples seeking infertility treatment. We report that higher male age was associated with lower likelihood of fertilization and live birth, and poor embryo development (p < 0.05). Furthermore, our multivariable linear models showed male age was associated with alterations in sperm methylation at 1698 CpGs and 1146 regions (q < 0.05), which were associated with > 750 genes enriched in embryonic development, behavior and neurodevelopment among others. High dimensional mediation analyses identified four genes (DEFB126, TPI1P3, PLCH2 and DLGAP2) with age-related sperm differential methylation that accounted for 64% (95% CI 0.42-0.86%; p < 0.05) of the effect of male age on lower fertilization rate. Our findings from this modest IVF population provide evidence for sperm methylation as a mechanism of age-induced poor reproductive outcomes and identifies possible candidate genes for mediating these effects.
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Affiliation(s)
- Oladele A Oluwayiose
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts Amherst, 173A Goessmann, 686 North Pleasant Street, Amherst, MA, 01003, USA
| | - Haotian Wu
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, 722 W 168th St, New York, NY, 10032, USA
| | - Hachem Saddiki
- Department of Biostatistics and Epidemiology, School of Public Health and Health Sciences, University of Massachusetts Amherst, 715 North Pleasant Street, Amherst, MA, USA
| | - Brian W Whitcomb
- Department of Biostatistics and Epidemiology, School of Public Health and Health Sciences, University of Massachusetts Amherst, 715 North Pleasant Street, Amherst, MA, USA
| | - Laura B Balzer
- Department of Biostatistics and Epidemiology, School of Public Health and Health Sciences, University of Massachusetts Amherst, 715 North Pleasant Street, Amherst, MA, USA
| | - Nicole Brandon
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts Amherst, 173A Goessmann, 686 North Pleasant Street, Amherst, MA, 01003, USA
| | - Alexander Suvorov
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts Amherst, 173A Goessmann, 686 North Pleasant Street, Amherst, MA, 01003, USA
| | - Rahil Tayyab
- Division of Reproductive Endocrinology and Infertility, Baystate Medical Center, 759 Chestnut Street, Springfield, MA, USA
| | - Cynthia K Sites
- Division of Reproductive Endocrinology and Infertility, Baystate Medical Center, 759 Chestnut Street, Springfield, MA, USA
| | - Lisa Hill
- Division of Reproductive Endocrinology and Infertility, Baystate Medical Center, 759 Chestnut Street, Springfield, MA, USA
| | - Chelsea Marcho
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts Amherst, 173A Goessmann, 686 North Pleasant Street, Amherst, MA, 01003, USA
| | - J Richard Pilsner
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts Amherst, 173A Goessmann, 686 North Pleasant Street, Amherst, MA, 01003, USA.
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25
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Rodriguez V, Alameda L, Trotta G, Spinazzola E, Marino P, Matheson SL, Laurens KR, Murray RM, Vassos E. Environmental Risk Factors in Bipolar Disorder and Psychotic Depression: A Systematic Review and Meta-Analysis of Prospective Studies. Schizophr Bull 2021; 47:959-974. [PMID: 33479726 PMCID: PMC8266635 DOI: 10.1093/schbul/sbaa197] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE The aim of this systematic review and meta-analysis was to study the association between specific environmental risk factors (ERF) and later development of Bipolar disorder and Psychotic depression. METHODS A systematic search of prospective studies was conducted in MEDLINE, EMBASE and PsycINFO databases, and supplemented by hand searching, according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines (registration number: CRD42018092253). Selected ERF included: pre-/peri-natal factors-paternal age at birth, maternal infection, obstetric complications, perinatal stress; early childhood factors-urbanicity at birth, childhood infection, childhood adversity; later life factors-substance misuse, ethnic minority and migration, urbanicity later in life, stressful life events, and traumatic head injury. Pooled effect sizes of the association between these ERF and affective psychoses were calculated from systematically selected studies. When studies examining each ERF were insufficient for meta-analysis, results were presented narratively. RESULTS Forty-six studies were included for quantitative analyses among selected ERF for affective psychosis, with significant association found for paternal age >40 years (OR 1.17, 95%CI 1.12-1.23), early (OR 1.52, 95%CI 1.07-2.17) and late (OR 1.32, 95%CI 1.05-1.67) gestational age, childhood adversity (OR 1.33, 95%CI 1.18-1.50), substance misuse (OR 2.87, 95%CI 1.63-5.50), and being from an ethnic minority (OR 1.99, 95%CI 1.39-2.84). CONCLUSIONS These results suggest some shared environmental load between non-affective and affective psychosis, implying generalized risks for psychosis rather than for specific diagnostic categories. Nonetheless, published studies for some ERF in the affective psychoses are scarce, and further longitudinal studies are needed.
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Affiliation(s)
- Victoria Rodriguez
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience. King’s College of London, London, UK,To whom correspondence should be addressed; Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King’s College London (Denmark Hill Campus), 16 De Crespigny Park, Camberwell, London SE5 8AF, UK; tel: +447-835-076-503, e-mail:
| | - Luis Alameda
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience. King’s College of London, London, UK,Instituto de Investigación Sanitaria de Sevilla, IBiS, Hospital Universitario Virgen del Rocío, Department of Psychiatry, Universidad de Sevilla, Seville, Spain,Service of General Psychiatry, Treatment and Early Intervention in Psychosis Program, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - Giulia Trotta
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience. King’s College of London, London, UK
| | - Edoardo Spinazzola
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience. King’s College of London, London, UK
| | - Paolo Marino
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience. King’s College of London, London, UK
| | - Sandra L Matheson
- School of Psychiatry, University of New South Wales, Sydney, NSW, Australia,Neuroscience Research Australia, Sydney, Australia
| | - Kristin R Laurens
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience. King’s College of London, London, UK,School of Psychology and Counselling, and Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia
| | - Robin M Murray
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience. King’s College of London, London, UK
| | - Evangelos Vassos
- Social, Genetics and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
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26
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Yoshizaki K, Kimura R, Kobayashi H, Oki S, Kikkawa T, Mai L, Koike K, Mochizuki K, Inada H, Matsui Y, Kono T, Osumi N. Paternal age affects offspring via an epigenetic mechanism involving REST/NRSF. EMBO Rep 2021; 22:e51524. [PMID: 33399271 PMCID: PMC7857438 DOI: 10.15252/embr.202051524] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 11/22/2020] [Accepted: 11/25/2020] [Indexed: 12/14/2022] Open
Abstract
Advanced paternal age can have deleterious effects on various traits in the next generation. Here, we establish a paternal‐aging model in mice to understand the molecular mechanisms of transgenerational epigenetics. Whole‐genome target DNA methylome analyses of sperm from aged mice reveal more hypo‐methylated genomic regions enriched in REST/NRSF binding motifs. Gene set enrichment analyses also reveal the upregulation of REST/NRSF target genes in the forebrain of embryos from aged fathers. Offspring derived from young mice administrated with a DNA de‐methylation drug phenocopy the abnormal vocal communication of pups derived from aged fathers. In conclusion, hypo‐methylation of sperm DNA can be a key molecular feature modulating neurodevelopmental programs in offspring by causing fluctuations in the expression of REST/NRSF target genes.
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Affiliation(s)
- Kaichi Yoshizaki
- Department of Developmental Neuroscience, Tohoku University Graduate School of Medicine, Sendai, Japan.,Department of Disease Model, Aichi Developmental Disability Center, Aichi, Japan
| | - Ryuichi Kimura
- Department of Developmental Neuroscience, Tohoku University Graduate School of Medicine, Sendai, Japan.,Department of Drug Discovery Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hisato Kobayashi
- NODAI Genome Research Center, Tokyo University of Agriculture, Tokyo, Japan.,Department of Embryology, Nara Medical University, Nara, Japan.,The Japan Agency for Medical Research and Development-Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan
| | - Shinya Oki
- Department of Drug Discovery Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takako Kikkawa
- Department of Developmental Neuroscience, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Lingling Mai
- Department of Developmental Neuroscience, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kohei Koike
- Department of Developmental Neuroscience, Tohoku University Graduate School of Medicine, Sendai, Japan.,Department of Physiology, Center for Integrative Physiology and Molecular Medicine, Saarland University School of Medicine, Homburg, Germany
| | - Kentaro Mochizuki
- Department of Developmental Neuroscience, Tohoku University Graduate School of Medicine, Sendai, Japan.,Cell Resource Center for Biomedical Research, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Hitoshi Inada
- Department of Developmental Neuroscience, Tohoku University Graduate School of Medicine, Sendai, Japan.,Laboratory of Health and Sports Science, Division of Biomedical Engineering for Health and Welfare, Tohoku University Graduate School of Biomedical Engineering, Sendai, Japan
| | - Yasuhisa Matsui
- The Japan Agency for Medical Research and Development-Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan.,Cell Resource Center for Biomedical Research, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Tomohiro Kono
- The Japan Agency for Medical Research and Development-Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan.,Department of Bioscience, Tokyo University of Agriculture, Tokyo, Japan
| | - Noriko Osumi
- Department of Developmental Neuroscience, Tohoku University Graduate School of Medicine, Sendai, Japan.,The Japan Agency for Medical Research and Development-Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan
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27
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Gill K, Jakubik-Uljasz J, Rosiak-Gill A, Grabowska M, Matuszewski M, Piasecka M. Male aging as a causative factor of detrimental changes in human conventional semen parameters and sperm DNA integrity. Aging Male 2020; 23:1321-1332. [PMID: 32425138 DOI: 10.1080/13685538.2020.1765330] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
The effect of male aging on fertility potential is controversial and difficult to predict. The aim of our study was to determine the associations between age, basic semen parameters, and sperm DNA fragmentation (SDF). Comparison of four age-dependent groups (men ≤29 years, 30-35 years, 36-40 years, and >40 years) revealed a significant fall in the basic semen characteristics and sperm genomic integrity with age. Receiver operating characteristic (ROC) analysis confirmed that men >29 years had lower semen quality. In the group of men >29 years, the prevalence of men with abnormal semen parameters was higher, and these men had over a threefold higher odds ratio (OR) for abnormal semen parameters. Next, ROC analysis revealed that a threshold of 18% SDF was optimal for discriminating between men with normal and abnormal standard semen parameters. The prevalence of men with >18% SDF was higher in the group of men >29 years than in men ≤29 years. Older men had an almost twofold higher risk for >18% SDF than younger men. Our results suggest that age >29 years may be a causative factor of detrimental changes in semen quality, which may raise the risk for disorders of male fertility potential.
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Affiliation(s)
- Kamil Gill
- Department of Histology and Developmental Biology, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Joanna Jakubik-Uljasz
- Department of Histology and Developmental Biology, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Aleksandra Rosiak-Gill
- Department of Histology and Developmental Biology, Pomeranian Medical University in Szczecin, Szczecin, Poland
- VitroLive Fertility Clinic in Szczecin, Szczecin, Poland
| | - Marta Grabowska
- Department of Histology and Developmental Biology, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | | | - Malgorzata Piasecka
- Department of Histology and Developmental Biology, Pomeranian Medical University in Szczecin, Szczecin, Poland
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28
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Garcia-Forn M, Boitnott A, Akpinar Z, De Rubeis S. Linking Autism Risk Genes to Disruption of Cortical Development. Cells 2020; 9:cells9112500. [PMID: 33218123 PMCID: PMC7698947 DOI: 10.3390/cells9112500] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/10/2020] [Accepted: 11/15/2020] [Indexed: 02/06/2023] Open
Abstract
Autism spectrum disorder (ASD) is a prevalent neurodevelopmental disorder characterized by impairments in social communication and social interaction, and the presence of repetitive behaviors and/or restricted interests. In the past few years, large-scale whole-exome sequencing and genome-wide association studies have made enormous progress in our understanding of the genetic risk architecture of ASD. While showing a complex and heterogeneous landscape, these studies have led to the identification of genetic loci associated with ASD risk. The intersection of genetic and transcriptomic analyses have also begun to shed light on functional convergences between risk genes, with the mid-fetal development of the cerebral cortex emerging as a critical nexus for ASD. In this review, we provide a concise summary of the latest genetic discoveries on ASD. We then discuss the studies in postmortem tissues, stem cell models, and rodent models that implicate recently identified ASD risk genes in cortical development.
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Affiliation(s)
- Marta Garcia-Forn
- Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (M.G.-F.); (A.B.); (Z.A.)
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- The Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Andrea Boitnott
- Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (M.G.-F.); (A.B.); (Z.A.)
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- The Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Zeynep Akpinar
- Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (M.G.-F.); (A.B.); (Z.A.)
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- The Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Department of Psychology, College of Arts and Sciences, New York University, New York, NY 10003, USA
| | - Silvia De Rubeis
- Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (M.G.-F.); (A.B.); (Z.A.)
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- The Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Correspondence: ; Tel.: +1-212-241-0179
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29
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Schürhoff F, Pignon B, Lajnef M, Denis R, Rutten B, Morgan C, Murray RM, Leboyer M, van Os J, Szöke A. Psychotic Experiences Are Associated With Paternal Age But Not With Delayed Fatherhood in a Large, Multinational, Community Sample. Schizophr Bull 2020; 46:1327-1334. [PMID: 32049353 PMCID: PMC7505204 DOI: 10.1093/schbul/sbz142] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Advanced paternal age has been consistently associated with an increased risk of schizophrenia. It is less known if such an association also exists with subclinical/attenuated forms of psychosis. Additionally, it has been suggested that it is not paternal age per se, but rather delayed fatherhood, as a marker of a genetic liability of psychosis, that is the cause of the association. The aim of the current study was to examine whether paternal age and/or delayed fatherhood (paternity age) predict self-reported positive, negative, and/or depressive dimensions of psychosis in a large sample from the general population. The sample (N = 1465) was composed of control subjects from the 6 countries participating in the European Union Gene-Environment Interaction study. The CAPE, a self-report questionnaire, was used to measure dimensions of subclinical psychosis. Paternal age at the time of respondents' birth and age of paternity were assessed by self-report. We assessed the influence of the variables of interest (paternal age or paternity age) on CAPE scores after adjusting for potential confounders (age, gender, and ethnicity). Paternal age was positively associated with the positive dimension of the CAPE. By contrast, paternity age was not associated with any of the psychosis dimensions assessed by the CAPE. Thus, our results do not support the idea that delayed fatherhood explains the association between age of paternity and psychosis risk. Furthermore, our results provide arguments for the hypothesis of an etiologic continuum of psychosis.
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Affiliation(s)
- Franck Schürhoff
- INSERM, U955, Translational Neuropsychiatry lab, Créteil, France
- AP-HP, DMU IMPACT, Psychiatry and Addictology Department, Mondor University Hospital, Créteil, France
- Fondation FondaMental, Créteil, France
- Univ Paris-Est Créteil, Faculté de médecine, Créteil, France
| | - Baptiste Pignon
- INSERM, U955, Translational Neuropsychiatry lab, Créteil, France
- AP-HP, DMU IMPACT, Psychiatry and Addictology Department, Mondor University Hospital, Créteil, France
- Fondation FondaMental, Créteil, France
- Univ Paris-Est Créteil, Faculté de médecine, Créteil, France
| | - Mohamed Lajnef
- INSERM, U955, Translational Neuropsychiatry lab, Créteil, France
| | - Romain Denis
- INSERM, U955, Translational Neuropsychiatry lab, Créteil, France
- AP-HP, DMU IMPACT, Psychiatry and Addictology Department, Mondor University Hospital, Créteil, France
- Fondation FondaMental, Créteil, France
- Univ Paris-Est Créteil, Faculté de médecine, Créteil, France
| | - Bart Rutten
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, South Limburg Mental Health Research and Teaching Network, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Craig Morgan
- Department of Health Service and Population Research, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London, UK
| | - Robin M Murray
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London, UK
| | - Marion Leboyer
- INSERM, U955, Translational Neuropsychiatry lab, Créteil, France
- AP-HP, DMU IMPACT, Psychiatry and Addictology Department, Mondor University Hospital, Créteil, France
- Fondation FondaMental, Créteil, France
- Univ Paris-Est Créteil, Faculté de médecine, Créteil, France
| | - Jim van Os
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, South Limburg Mental Health Research and Teaching Network, Maastricht University Medical Centre, Maastricht, The Netherlands
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London, UK
| | - Andrei Szöke
- INSERM, U955, Translational Neuropsychiatry lab, Créteil, France
- AP-HP, DMU IMPACT, Psychiatry and Addictology Department, Mondor University Hospital, Créteil, France
- Fondation FondaMental, Créteil, France
- Univ Paris-Est Créteil, Faculté de médecine, Créteil, France
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30
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Abstract
Canalization refers to the evolution of populations such that the number of individuals who deviate from the optimum trait, or experience disease, is minimized. In the presence of rapid cultural, environmental, or genetic change, the reverse process of decanalization may contribute to observed increases in disease prevalence. This review starts by defining relevant concepts, drawing distinctions between the canalization of populations and robustness of individuals. It then considers evidence pertaining to three continuous traits and six domains of disease. In each case, existing genetic evidence for genotype-by-environment interactions is insufficient to support a strong inference of decanalization, but we argue that the advent of genome-wide polygenic risk assessment now makes an empirical evaluation of the role of canalization in preventing disease possible. Finally, the contributions of both rare and common variants to congenital abnormality and adult onset disease are considered in light of a new kerplunk model of genetic effects.
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Affiliation(s)
- Greg Gibson
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, Georgia 30332, USA;
| | - Kristine A Lacek
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, Georgia 30332, USA;
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31
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Lyall K, Song L, Botteron K, Croen LA, Dager SR, Fallin MD, Hazlett HC, Kauffman E, Landa R, Ladd-Acosta C, Messinger DS, Ozonoff S, Pandey J, Piven J, Schmidt RJ, Schultz RT, Stone WL, Newschaffer CJ, Volk HE. The Association Between Parental Age and Autism-Related Outcomes in Children at High Familial Risk for Autism. Autism Res 2020; 13:998-1010. [PMID: 32314879 PMCID: PMC7396152 DOI: 10.1002/aur.2303] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 03/20/2020] [Accepted: 03/24/2020] [Indexed: 12/19/2022]
Abstract
Advanced parental age is a well-replicated risk factor for autism spectrum disorder (ASD), a neurodevelopmental condition with a complex and not well-defined etiology. We sought to determine parental age associations with ASD-related outcomes in subjects at high familial risk for ASD. A total of 397 younger siblings of a child with ASD, drawn from existing prospective high familial risk cohorts, were included in these analyses. Overall, we did not observe significant associations of advanced parental age with clinical ASD diagnosis, Social Responsiveness Scale, or Vineland Adaptive Behavior Scales scores. Instead, increased odds of ASD were found with paternal age < 30 years (adjusted odds ratio [AOR] = 2.83 and 95% confidence intervals [CI] = 1.14-7.02). Likewise, younger age (<30 years) for both parents was associated with decreases in Mullen Scales of Early Learning early learning composite (MSEL-ELC) scores (adjusted β = -9.62, 95% CI = -17.1 to -2.15). We also found significant increases in cognitive functioning based on MSEL-ELC scores with increasing paternal age (adjusted β associated with a 10-year increase in paternal age = 5.51, 95% CI = 0.70-10.3). Results suggest the potential for a different relationship between parental age and ASD-related outcomes in families with elevated ASD risk than has been observed in general population samples. Autism Res 2020, 13: 998-1010. © 2020 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Previous work suggests that older parents have a greater likelihood of having a child with autism. We investigated this relationship in the younger siblings of families who already had a child with autism. In this setting, we found a higher likelihood of autism, as well as poorer cognitive scores, in the siblings with younger fathers, and higher cognitive scores in the siblings with older parents. These results suggest that parental age associations may differ based on children's familial risk for autism.
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Affiliation(s)
- Kristen Lyall
- AJ Drexel Autism Institute, Drexel University, Philadelphia, Pennsylvania, USA
| | - Lanxin Song
- Department of Mental Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | - Kelly Botteron
- Department of Psychiatry, Washington University, St Louis, Missouri, USA
| | - Lisa A Croen
- Kaiser Permanente Division of Research, Oakland, California, USA
| | - Stephen R Dager
- Department of Radiology, University of Washington, Seattle, Washington, USA
| | - M Daniele Fallin
- Department of Mental Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | - Heather C Hazlett
- Department of Psychiatry, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Elizabeth Kauffman
- AJ Drexel Autism Institute, Drexel University, Philadelphia, Pennsylvania, USA
| | - Rebecca Landa
- Department of Psychiatry and Behavioral Sciences, Center for Autism and Related Disorders, Kennedy Krieger Institute, Johns Hopkins University, Baltimore, Maryland, USA
| | - Christine Ladd-Acosta
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | | | - Sally Ozonoff
- MIND Institute, Department of Psychiatry and Behavioral Sciences, University of California Davis, Sacramento, California, USA
| | - Juhi Pandey
- Center for Autism Research, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Joseph Piven
- Department of Psychiatry, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Rebecca J Schmidt
- Department of Public Health, University of California Davis, Davis, California, USA
- MIND Institute, University of California Davis, Sacramento, California, USA
| | - Robert T Schultz
- Center for Autism Research, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Wendy L Stone
- Department of Psychology, University of Washington, Seattle, Washington, USA
| | - Craig J Newschaffer
- College of Health and Human Development, Pennsylvania State University, State College, Pennsylvania, USA
| | - Heather E Volk
- Department of Mental Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
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32
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Wang RJ, Thomas GWC, Raveendran M, Harris RA, Doddapaneni H, Muzny DM, Capitanio JP, Radivojac P, Rogers J, Hahn MW. Paternal age in rhesus macaques is positively associated with germline mutation accumulation but not with measures of offspring sociability. Genome Res 2020; 30:826-834. [PMID: 32461224 PMCID: PMC7370888 DOI: 10.1101/gr.255174.119] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 05/21/2020] [Indexed: 01/26/2023]
Abstract
Mutation is the ultimate source of all genetic novelty and the cause of heritable genetic disorders. Mutational burden has been linked to complex disease, including neurodevelopmental disorders such as schizophrenia and autism. The rate of mutation is a fundamental genomic parameter and direct estimates of this parameter have been enabled by accurate comparisons of whole-genome sequences between parents and offspring. Studies in humans have revealed that the paternal age at conception explains most of the variation in mutation rate: Each additional year of paternal age in humans leads to approximately 1.5 additional inherited mutations. Here, we present an estimate of the de novo mutation rate in the rhesus macaque (Macaca mulatta) using whole-genome sequence data from 32 individuals in four large pedigrees. We estimated an average mutation rate of 0.58 × 10−8 per base pair per generation (at an average parental age of 7.5 yr), much lower than found in direct estimates from great apes. As in humans, older macaque fathers transmit more mutations to their offspring, increasing the per generation mutation rate by 4.27 × 10−10 per base pair per year. We found that the rate of mutation accumulation after puberty is similar between macaques and humans, but that a smaller number of mutations accumulate before puberty in macaques. We additionally investigated the role of paternal age on offspring sociability, a proxy for normal neurodevelopment, by studying 203 male macaques in large social groups.
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Affiliation(s)
- Richard J Wang
- Department of Biology, Indiana University, Bloomington, Indiana 47405, USA
| | - Gregg W C Thomas
- Department of Biology, Indiana University, Bloomington, Indiana 47405, USA.,Department of Computer Science, Indiana University, Bloomington, Indiana 47405, USA
| | - Muthuswamy Raveendran
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas 77030, USA.,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas 77030, USA
| | - R Alan Harris
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas 77030, USA.,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas 77030, USA
| | - Harshavardhan Doddapaneni
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas 77030, USA.,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas 77030, USA
| | - Donna M Muzny
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas 77030, USA.,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas 77030, USA
| | - John P Capitanio
- California National Primate Research Center, University of California-Davis, Davis, California 95616, USA
| | - Predrag Radivojac
- Department of Computer Science, Indiana University, Bloomington, Indiana 47405, USA.,Khoury College of Computer Sciences, Northeastern University, Boston, Massachusetts 02115, USA
| | - Jeffrey Rogers
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas 77030, USA.,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas 77030, USA
| | - Matthew W Hahn
- Department of Biology, Indiana University, Bloomington, Indiana 47405, USA.,Department of Computer Science, Indiana University, Bloomington, Indiana 47405, USA
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Gale-Grant O, Christiaens D, Cordero-Grande L, Chew A, Falconer S, Makropoulos A, Harper N, Price AN, Hutter J, Hughes E, Victor S, Counsell SJ, Rueckert D, Hajnal JV, Edwards AD, O'Muircheartaigh J, Batalle D. Parental age effects on neonatal white matter development. NEUROIMAGE-CLINICAL 2020; 27:102283. [PMID: 32526683 PMCID: PMC7284122 DOI: 10.1016/j.nicl.2020.102283] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 04/28/2020] [Accepted: 05/10/2020] [Indexed: 12/29/2022]
Abstract
Advanced paternal age is associated with a range of later negative outcomes. It is not known if these negative outcomes are due to genetics or environment. We use neonatal diffusion MRI to demonstrate paternal age effect on white matter. The babies of older fathers had reduced fractional anisotropy in multiple areas. These changes correlated with cognitive outcome at 18 months.
Objective Advanced paternal age is associated with poor offspring developmental outcome. Though an increase in paternal age-related germline mutations may affect offspring white matter development, outcome differences could also be due to psychosocial factors. Here we investigate possible cerebral changes prior to strong environmental influences using brain MRI in a cohort of healthy term-born neonates. Methods We used structural and diffusion MRI images acquired soon after birth from a cohort (n = 275) of healthy term-born neonates. Images were analysed using a customised tract based spatial statistics (TBSS) processing pipeline. Neurodevelopmental assessment using the Bayley-III scales was offered to all participants at age 18 months. For statistical analysis neonates were compared in two groups, representing the upper quartile (paternal age ≥38 years) and lower three quartiles. The same method was used to assess associations with maternal age. Results In infants with older fathers (≥38 years), fractional anisotropy, a marker of white matter organisation, was significantly reduced in three early maturing anatomical locations (the corticospinal tract, the corpus callosum, and the optic radiation). Fractional anisotropy in these locations correlated positively with Bayley-III cognitive composite score at 18 months in the advanced paternal age group. A small but significant reduction in total brain volume was also observed in in the infants of older fathers. No significant associations were found between advanced maternal age and neonatal imaging. Conclusions The epidemiological association between advanced paternal age and offspring outcome is extremely robust. We have for the first time demonstrated a neuroimaging phenotype of advanced paternal age before sustained parental interaction that correlates with later outcome.
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Affiliation(s)
- Oliver Gale-Grant
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering, King's College London, United Kingdom; MRC Centre for Neurodevelopmental Disorders, King's College London, United Kingdom; Department of Forensic and Neurodevelopmental Science, Institute of Psychiatry, Psychology & Neuroscience, King's College London, United Kingdom.
| | - Daan Christiaens
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering, King's College London, United Kingdom
| | - Lucilio Cordero-Grande
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering, King's College London, United Kingdom
| | - Andrew Chew
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering, King's College London, United Kingdom
| | - Shona Falconer
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering, King's College London, United Kingdom
| | | | - Nicholas Harper
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering, King's College London, United Kingdom
| | - Anthony N Price
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering, King's College London, United Kingdom
| | - Jana Hutter
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering, King's College London, United Kingdom
| | - Emer Hughes
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering, King's College London, United Kingdom
| | - Suresh Victor
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering, King's College London, United Kingdom
| | - Serena J Counsell
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering, King's College London, United Kingdom
| | - Daniel Rueckert
- Department of Computing, Imperial College London, United Kingdom
| | - Joseph V Hajnal
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering, King's College London, United Kingdom
| | - A David Edwards
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering, King's College London, United Kingdom; MRC Centre for Neurodevelopmental Disorders, King's College London, United Kingdom
| | - Jonathan O'Muircheartaigh
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering, King's College London, United Kingdom; MRC Centre for Neurodevelopmental Disorders, King's College London, United Kingdom; Department of Forensic and Neurodevelopmental Science, Institute of Psychiatry, Psychology & Neuroscience, King's College London, United Kingdom
| | - Dafnis Batalle
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering, King's College London, United Kingdom; Department of Forensic and Neurodevelopmental Science, Institute of Psychiatry, Psychology & Neuroscience, King's College London, United Kingdom
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34
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Tatehana M, Kimura R, Mochizuki K, Inada H, Osumi N. Comprehensive histochemical profiles of histone modification in male germline cells during meiosis and spermiogenesis: Comparison of young and aged testes in mice. PLoS One 2020; 15:e0230930. [PMID: 32267870 PMCID: PMC7141650 DOI: 10.1371/journal.pone.0230930] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 03/12/2020] [Indexed: 12/11/2022] Open
Abstract
Human epidemiological studies have shown that paternal aging as one of the risk factors for neurodevelopmental disorders, such as autism, in offspring. A recent study has suggested that factors other than de novo mutations due to aging can influence the biology of offspring. Here, we focused on epigenetic alterations in sperm that can influence developmental programs in offspring. In this study, we qualitatively and semiquantitatively evaluated histone modification patterns in male germline cells throughout spermatogenesis based on immunostaining of testes taken from young (3 months old) and aged (12 months old) mice. Although localization patterns were not obviously changed between young and aged testes, some histone modification showed differences in their intensity. Among histone modifications that repress gene expression, histone H3 lysine 9 trimethylation (H3K9me3) was decreased in the male germline cells of the aged testis, while H3K27me2/3 was increased. The intensity of H3K27 acetylation (ac), an active mark, was lower/higher depending on the stages in the aged testis. Interestingly, H3K27ac was detected on the putative sex chromosomes of round spermatids, while other chromosomes were occupied by a repressive mark, H3K27me3. Among other histone modifications that activate gene expression, H3K4me2 was drastically decreased in the male germline cells of the aged testis. In contrast, H3K79me3 was increased in M-phase spermatocytes, where it accumulates on the sex chromosomes. Therefore, aging induced alterations in the amount of histone modifications and in the differences of patterns for each modification. Moreover, histone modifications on the sex chromosomes and on other chromosomes seems to be differentially regulated by aging. These findings will help elucidate the epigenetic mechanisms underlying the influence of paternal aging on offspring development.
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Affiliation(s)
- Misako Tatehana
- Department of Developmental Neuroscience, Center for Advanced Research and Translational Medicine (ART), Tohoku University School of Medicine, Sendai, Japan
| | - Ryuichi Kimura
- Department of Developmental Neuroscience, Center for Advanced Research and Translational Medicine (ART), Tohoku University School of Medicine, Sendai, Japan
| | - Kentaro Mochizuki
- Department of Developmental Neuroscience, Center for Advanced Research and Translational Medicine (ART), Tohoku University School of Medicine, Sendai, Japan
- Department of Medical Genetics, Life Sciences Institute, The University of British Columbia, Vancouver, BC, Canada
| | - Hitoshi Inada
- Department of Developmental Neuroscience, Center for Advanced Research and Translational Medicine (ART), Tohoku University School of Medicine, Sendai, Japan
| | - Noriko Osumi
- Department of Developmental Neuroscience, Center for Advanced Research and Translational Medicine (ART), Tohoku University School of Medicine, Sendai, Japan
- * E-mail:
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35
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Gao Y, Yu Y, Xiao J, Luo J, Zhang Y, Tian Y, Zhang J, Olsen J, Li J, Liew Z. Association of Grandparental and Parental Age at Childbirth With Autism Spectrum Disorder in Children. JAMA Netw Open 2020; 3:e202868. [PMID: 32293683 PMCID: PMC7160691 DOI: 10.1001/jamanetworkopen.2020.2868] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
IMPORTANCE Advanced parental age has been associated with autism spectrum disorders (ASDs) in children. However, little is known about the association between grandparental age at the time of birth of the parent and the risk of ASD in the grandchildren. OBJECTIVE To estimate the associations between parental and grandparental age and ASD risk in children. DESIGN, SETTING, AND PARTICIPANTS This population-based, multigenerational cohort study used data from Danish national health registries. A parental age cohort was constructed to evaluate the association between parental age and ASD in 1 476 783 singleton children born from 1990 to 2013, and a multigenerational cohort was also constructed including 362 438 fathers and 458 234 mothers born from 1973 to 1990 for whom information on grandparental age was available. Data analyses were conducted from November 1, 2018, through February 7, 2020. EXPOSURES Parental age at childbirth and grandparental age at the time of the birth of the parent. MAIN OUTCOMES AND MEASURES Diagnoses of ASD in children were obtained from the Danish Psychiatric Central Register (1994-2017). Logistic regression analysis was used to estimate the associations between parental or grandparental age and ASD in children. RESULTS Of the 1 476 783 children born from 1990 to 2013, 758 066 (51.3%) were male, and 27 616 (1.9%) had ASD (20 467 [74.1%] were male). Advanced paternal or maternal age over 30 years was monotonically associated with increased ASD risk, with odds ratios (ORs) of 1.56 (95% CI, 1.45-1.68) for maternal age 40 years and older and 1.57 (95% CI, 1.39-1.78) for paternal age 50 years and older, compared with parents aged 25 to 29 years. In the multigenerational cohort, 9364 grandchildren (1.7%) had ASD. This study found U-shaped associations, in that ASD risk was higher among grandchildren of younger (≤19 years) maternal grandmothers (OR, 1.68; 95% CI, 1.52-1.85), younger maternal grandfathers (OR, 1.50; 95% CI, 1.26-1.78), and younger paternal grandmothers (OR, 1.18; 95% CI, 1.04-1.34), and older (≥40 years) paternal grandmothers (OR, 1.40; 95% CI, 1.03-1.90) compared with the grandchildren of grandparents who were aged 25 to 29 years at the time of giving birth to the parents. CONCLUSIONS AND RELEVANCE These findings corroborate previous studies suggesting that advanced parental age is independently associated with increased ASD risk in children. This study also found that children with young maternal grandparents and children with young and old paternal grandparents had elevated ASD risk. Possible transmission of ASD risk across generations should be considered in etiological research on ASD.
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Affiliation(s)
- Yu Gao
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yongfu Yu
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
| | - Jingyuan Xiao
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, Connecticut
- Yale Center for Perinatal, Pediatric, and Environmental Epidemiology, Yale School of Public Health, New Haven, Connecticut
| | - Jiajun Luo
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, Connecticut
- Yale Center for Perinatal, Pediatric, and Environmental Epidemiology, Yale School of Public Health, New Haven, Connecticut
| | - Yawei Zhang
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, Connecticut
- Yale Center for Perinatal, Pediatric, and Environmental Epidemiology, Yale School of Public Health, New Haven, Connecticut
| | - Ying Tian
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- The Ministry of Education–Shanghai Key Laboratory of Children’s Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jun Zhang
- The Ministry of Education–Shanghai Key Laboratory of Children’s Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jørn Olsen
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
| | - Jiong Li
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
| | - Zeyan Liew
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, Connecticut
- Yale Center for Perinatal, Pediatric, and Environmental Epidemiology, Yale School of Public Health, New Haven, Connecticut
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36
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Esin IS, Turan B, Akıncı MA, Karabak M, Dursun OB. Do we need to re-think on subthreshold childhood psychiatric cases? A follow-up study. Med Hypotheses 2020; 139:109697. [PMID: 32247189 DOI: 10.1016/j.mehy.2020.109697] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 03/18/2020] [Accepted: 03/23/2020] [Indexed: 12/16/2022]
Abstract
A remarkable number of children all over the world have psychiatric disorders, which cause severe impairments in functionality. In the development of future mental health planning, not only determining epidemiological data is sufficient, but also follow-up studies are needed. This study aimed to determine the course of subthreshold psychiatric disorders in three-year follow-up process, and whether there is a relationship between sociodemographic factors, parental attitudes and SDQ scores and the escalating escalation from SPD to psychopathology or the disappearance of SPD symptoms. This study included fifty-four children with age of 7-9 years. The Development and Well Being Assessment, structured diagnostic interview, was used to evaluate psychiatric disorders. Besides, parents were asked to fill out a socio-demographic form and the Parent Attitude Research Instrument. The mean age of children was 8.2 ± 0.8 years, and 59.3% of them were girls, and 40.7% of them were boys. At the beginning of the study, most common subthreshold psychiatric disorders were Specific Phobia with a prevalence of 3%, followed by Attention Deficit Hyperactivity Disorder 2.2%. After three-year of the follow-up period, 37% of subthreshold cases progress into psychiatric disorders. Living in a city centre in a slum and psychiatric disorder history of the family were independent risk factors for developing psychopathology. Living in a village was an effective protective factor in the disappearance of Subthreshold Psychiatric Disorder symptoms. In this study, besides the factors that may be effective in the development of psychiatric disorders, the factors that may be effective in the disappearance of Subthreshold Psychiatric Disorder symptoms were examined.
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Affiliation(s)
- Ibrahim Selcuk Esin
- Department of Child and Adolescent Psychiatry, Ataturk University, Faculty of Medicine, Erzurum, Turkey
| | - Bahadır Turan
- Department of Child and Adolescent Psychiatry, Agrı State Hospital, Agrı, Turkey
| | - Mehmet Akif Akıncı
- Department of Child and Adolescent Psychiatry, Dr. Ali Kemal Belviranlı Obstetrics and Pediatrics Hospital, Konya, Turkey
| | - Merve Karabak
- Department of Child and Adolescent Psychiatry, Ataturk University, Faculty of Medicine, Erzurum, Turkey
| | - Onur Burak Dursun
- Department of Child and Adolescent Psychiatry, University of Health Sciences, Faculty of Medicine, Trabzon, Turkey.
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37
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Nesic MJ, Stojkovic B, Maric NP. On the origin of schizophrenia: Testing evolutionary theories in the post-genomic era. Psychiatry Clin Neurosci 2019; 73:723-730. [PMID: 31525268 DOI: 10.1111/pcn.12933] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 09/10/2019] [Accepted: 09/12/2019] [Indexed: 12/13/2022]
Abstract
Considering the relatively high heritability of schizophrenia and the fact that it significantly reduces the reproductive fitness of affected individuals, it is not clear how the disorder is still maintained in human populations at a disproportionally high prevalence. Many theories propose that the disorder is a result of a trade-off between costs and benefits of the evolution of exclusively human adaptations. There have also been suggestions that schizophrenia risk alleles are accompanied with increase in fitness of affected persons or their relatives in both past and current social contexts. The discoveries of novel schizophrenia-related genes and the advancements in comparative genomics (especially comparisons of the human genome and the genomes of related species, such as chimpanzees and extinct hominids) have finally made certain evolutionary theories testable. In this paper, we review the current understanding of the genetics of schizophrenia, the basic principles of evolution that complement our understanding of the subject, and the latest genetic studies that examine long-standing evolutionary theories of schizophrenia using novel methodologies and data. We find that the origin of schizophrenia is complex and likely governed by different evolutionary mechanisms that are not mutually exclusive. Furthermore, the most recent evidence implies that schizophrenia cannot be comprehended as a trait that has elevated fitness in human evolutionary lineage, but has been a mildly deleterious by-product of specific patterns of the evolution of the human brain. In other words, novel findings do not support previous hypotheses stating that schizophrenia risk genes have an evolutionary advantage.
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Affiliation(s)
- Milica J Nesic
- Clinic for Psychiatry, Clinical Center of Serbia, Belgrade, Serbia
| | - Biljana Stojkovic
- Institute of Zoology, Faculty of Biology, University of Belgrade, Belgrade, Serbia.,Department of Evolutionary Biology, Institute for Biological Research 'Siniša Stanković', University of Belgrade, Belgrade, Serbia
| | - Nadja P Maric
- Clinic for Psychiatry, Clinical Center of Serbia, Belgrade, Serbia.,Faculty of Medicine, University of Belgrade, Belgrade, Serbia
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38
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Carslake D, Tynelius P, van den Berg GJ, Davey Smith G. Associations of parental age with offspring all-cause and cause-specific adult mortality. Sci Rep 2019; 9:17097. [PMID: 31745218 PMCID: PMC6864242 DOI: 10.1038/s41598-019-52853-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 10/16/2019] [Indexed: 11/08/2022] Open
Abstract
People are having children later in life. The consequences for offspring adult survival have been little studied due to the need for long follow-up linked to parental data and most research has considered offspring survival only in early life. We used Swedish registry data to examine all-cause and cause-specific adult mortality (293,470 deaths among 5,204,433 people, followed up to a maximum of 80 years old) in relation to parental age. For most common causes of death adult survival was improved in the offspring of older parents (HR for all-cause survival was 0.96 (95% CI: 0.96, 0.97) and 0.98 (0.97, 0.98) per five years of maternal and paternal age, respectively). The childhood environment provided by older parents may more than compensate for any physiological disadvantages. Within-family analyses suggested stronger benefits of advanced parental age. This emphasises the importance of secular trends; a parent's later children were born into a wealthier, healthier world. Sibling-comparison analyses can best assess individual family planning choices, but our results suggested a vulnerability to selection bias when there is extensive censoring. We consider the numerous causal and non-causal mechanisms which can link parental age and offspring survival, and the difficulty of separating them with currently available data.
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Affiliation(s)
- David Carslake
- MRC Integrative Epidemiology Unit at the University of Bristol, Bristol, UK.
- Population Health Sciences, Bristol Medical School, Bristol, UK.
| | - Per Tynelius
- Department of Public Health Sciences, Karolinska Institute, Stockholm, Sweden
| | | | - George Davey Smith
- MRC Integrative Epidemiology Unit at the University of Bristol, Bristol, UK
- Population Health Sciences, Bristol Medical School, Bristol, UK
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39
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Mulder HA, Lee SH, Clark S, Hayes BJ, van der Werf JHJ. The Impact of Genomic and Traditional Selection on the Contribution of Mutational Variance to Long-Term Selection Response and Genetic Variance. Genetics 2019; 213:361-378. [PMID: 31431471 PMCID: PMC6781905 DOI: 10.1534/genetics.119.302336] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 07/19/2019] [Indexed: 01/23/2023] Open
Abstract
De novo mutations (DNM) create new genetic variance and are an important driver for long-term selection response. We hypothesized that genomic selection exploits mutational variance less than traditional selection methods such as mass selection or selection on pedigree-based breeding values, because DNM in selection candidates are not captured when the selection candidates' own phenotype is not used in genomic selection, DNM are not on SNP chips and DNM are not in linkage disequilibrium with the SNP on the chip. We tested this hypothesis with Monte Carlo simulation. From whole-genome sequence data, a subset of ∼300,000 variants was used that served as putative markers, quantitative trait loci or DNM. We simulated 20 generations with truncation selection based on breeding values from genomic best linear unbiased prediction without (GBLUP_no_OP) or with own phenotype (GBLUP_OP), pedigree-based BLUP without (BLUP_no_OP) or with own phenotype (BLUP_OP), or directly on phenotype. GBLUP_OP was the best strategy in exploiting mutational variance, while GBLUP_no_OP and BLUP_no_OP were the worst in exploiting mutational variance. The crucial element is that GBLUP_no_OP and BLUP_no_OP puts no selection pressure on DNM in selection candidates. Genetic variance decreased faster with GBLUP_no_OP and GBLUP_OP than with BLUP_no_OP, BLUP_OP or mass selection. The distribution of mutational effects, mutational variance, number of DNM per individual and nonadditivity had a large impact on mutational selection response and mutational genetic variance, but not on ranking of selection strategies. We advocate that more sustainable genomic selection strategies are required to optimize long-term selection response and to maintain genetic diversity.
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Affiliation(s)
- Herman A Mulder
- Wageningen University & Research Animal Breeding and Genomics, 6700 AH Wageningen, The Netherlands
| | - Sang Hong Lee
- School of Environmental and Rural Science, University of New England, Armidale, New South Wales 2351, Australia
- Australian Centre for Precision Health, University of South Australia Cancer Research Institute, University of South Australia, Adelaide, South Australia 5000, Australia
| | - Sam Clark
- School of Environmental and Rural Science, University of New England, Armidale, New South Wales 2351, Australia
| | - Ben J Hayes
- Centre for Animal Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St. Lucia 4067, Queensland, Australia
| | - Julius H J van der Werf
- School of Environmental and Rural Science, University of New England, Armidale, New South Wales 2351, Australia
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Yassin W, Kojima M, Owada K, Kuwabara H, Gonoi W, Aoki Y, Takao H, Natsubori T, Iwashiro N, Kasai K, Kano Y, Abe O, Yamasue H. Paternal age contribution to brain white matter aberrations in autism spectrum disorder. Psychiatry Clin Neurosci 2019; 73:649-659. [PMID: 31271249 DOI: 10.1111/pcn.12909] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 05/29/2019] [Accepted: 07/01/2019] [Indexed: 12/16/2022]
Abstract
AIM Although advanced parental age holds an increased risk for autism spectrum disorder (ASD), its role as a potential risk factor for an atypical white matter development underlying the pathophysiology of ASD has not yet been investigated. The current study was aimed to detect white matter disparities in ASD, and further investigate the relationship of paternal and maternal age at birth with such disparities. METHODS Thirty-nine adult males with high-functioning ASD and 37 typically developing (TD) males were analyzed in the study. The FMRIB Software Library and tract-based spatial statistics were utilized to process and analyze the diffusion tensor imaging data. RESULTS Subjects with ASD exhibited significantly higher mean diffusivity (MD) and radial diffusivity (RD) in white matter fibers, including the association (inferior fronto-occipital fasciculus, right inferior longitudinal fasciculus, superior longitudinal fasciculi, uncinate fasciculus, and cingulum), commissural (forceps minor), and projection tracts (anterior thalamic radiation and right corticospinal tract) compared to TD subjects (Padjusted < 0.05). No differences were seen in either fractional anisotropy or axial diffusivity. Linear regression analyses assessing the relationship between parental ages and the white matter aberrations revealed a positive correlation between paternal age (PA), but not maternal age, and both MD and RD in the affected fibers (Padjusted < 0.05). Multiple regression showed that only PA was a predictor of both MD and RD. CONCLUSION Our findings suggest that PA contributes to the white matter disparities seen in individuals with ASD compared to TD subjects.
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Affiliation(s)
- Walid Yassin
- Department of Child Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Masaki Kojima
- Department of Child Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Keiho Owada
- Department of Child Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hitoshi Kuwabara
- Department of Psychiatry, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Wataru Gonoi
- Department of Radiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yuta Aoki
- Department of Neuropsychiatry, School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hidemasa Takao
- Department of Radiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Tatsunobu Natsubori
- Department of Neuropsychiatry, School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Norichika Iwashiro
- Department of Neuropsychiatry, School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kiyoto Kasai
- Department of Neuropsychiatry, School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yukiko Kano
- Department of Child Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Osamu Abe
- Department of Radiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hidenori Yamasue
- Department of Psychiatry, Hamamatsu University School of Medicine, Hamamatsu, Japan
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Ni G, Amare AT, Zhou X, Mills N, Gratten J, Lee SH. The genetic relationship between female reproductive traits and six psychiatric disorders. Sci Rep 2019; 9:12041. [PMID: 31427629 PMCID: PMC6700195 DOI: 10.1038/s41598-019-48403-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 07/31/2019] [Indexed: 12/31/2022] Open
Abstract
Female reproductive behaviours have important implications for evolutionary fitness and health of offspring. Here we used the second release of UK Biobank data (N = 220,685) to evaluate the association between five female reproductive traits and polygenic risk scores (PRS) projected from genome-wide association study summary statistics of six psychiatric disorders (N = 429,178). We found that the PRS of attention-deficit/hyperactivity disorder (ADHD) were strongly associated with age at first birth (AFB) (genetic correlation of -0.68 ± 0.03), age at first sexual intercourse (AFS) (-0.56 ± 0.03), number of live births (NLB) (0.36 ± 0.04) and age at menopause (-0.27 ± 0.04). There were also robustly significant associations between the PRS of eating disorder (ED) and AFB (0.35 ± 0.06), ED and AFS (0.19 ± 0.06), major depressive disorder (MDD) and AFB (-0.27 ± 0.07), MDD and AFS (-0.27 ± 0.03) and schizophrenia and AFS (-0.10 ± 0.03). These associations were mostly explained by pleiotropic effects and there was little evidence of causal relationships. Our findings can potentially help improve reproductive health in women, hence better child outcomes. Our findings also lend partial support to the evolutionary hypothesis that causal mutations underlying psychiatric disorders have positive effects on reproductive success.
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Affiliation(s)
- Guiyan Ni
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Queensland, 4072, Australia
- Australian Centre for Precision Health, University of South Australia Cancer Research Institute, University of South Australia, Adelaide, SA, 5000, Australia
- School of Environmental and Rural Science, University of New England, Armidale, NSW, 2351, Australia
| | - Azmeraw T Amare
- South Australian Academic Health Science and Translation centre, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia, Australia
- Discipline of Psychiatry, School of Medicine, University of Adelaide, Adelaide, SA, Australia
| | - Xuan Zhou
- Australian Centre for Precision Health, University of South Australia Cancer Research Institute, University of South Australia, Adelaide, SA, 5000, Australia
| | - Natalie Mills
- Discipline of Psychiatry, School of Medicine, University of Adelaide, Adelaide, SA, Australia
| | - Jacob Gratten
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Queensland, 4072, Australia
- Mater Research Institute, University of Queensland, Brisbane, Queensland, 4072, Australia
| | - S Hong Lee
- Australian Centre for Precision Health, University of South Australia Cancer Research Institute, University of South Australia, Adelaide, SA, 5000, Australia.
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Zondervan-Zwijnenburg MAJ, Veldkamp SAM, Neumann A, Barzeva SA, Nelemans SA, van Beijsterveldt CEM, Branje SJT, Hillegers MHJ, Meeus WHJ, Tiemeier H, Hoijtink HJA, Oldehinkel AJ, Boomsma DI. Parental Age and Offspring Childhood Mental Health: A Multi-Cohort, Population-Based Investigation. Child Dev 2019; 91:964-982. [PMID: 31364163 PMCID: PMC7317448 DOI: 10.1111/cdev.13267] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 02/06/2019] [Accepted: 02/22/2019] [Indexed: 01/07/2023]
Abstract
To examine the contributions of maternal and paternal age on offspring externalizing and internalizing problems, this study analyzed problem behaviors at age 10-12 years from four Dutch population-based cohorts (N = 32,892) by a multiple informant design. Bayesian evidence synthesis was used to combine results across cohorts with 50% of the data analyzed for discovery and 50% for confirmation. There was evidence of a robust negative linear relation between parental age and externalizing problems as reported by parents. In teacher-reports, this relation was largely explained by parental socio-economic status. Parental age had limited to no association with internalizing problems. Thus, in this large population-based study, either a beneficial or no effect of advanced parenthood on child problem behavior was observed.
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Paternal-age-related de novo mutations and risk for five disorders. Nat Commun 2019; 10:3043. [PMID: 31292440 PMCID: PMC6620346 DOI: 10.1038/s41467-019-11039-6] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 06/05/2019] [Indexed: 02/08/2023] Open
Abstract
There are established associations between advanced paternal age and offspring risk for psychiatric and developmental disorders. These are commonly attributed to genetic mutations, especially de novo single nucleotide variants (dnSNVs), that accumulate with increasing paternal age. However, the actual magnitude of risk from such mutations in the male germline is unknown. Quantifying this risk would clarify the clinical significance of delayed paternity. Using parent-child trio whole-exome-sequencing data, we estimate the relationship between paternal-age-related dnSNVs and risk for five disorders: autism spectrum disorder (ASD), congenital heart disease, neurodevelopmental disorders with epilepsy, intellectual disability and schizophrenia (SCZ). Using Danish registry data, we investigate whether epidemiologic associations between each disorder and older fatherhood are consistent with the estimated role of dnSNVs. We find that paternal-age-related dnSNVs confer a small amount of risk for these disorders. For ASD and SCZ, epidemiologic associations with delayed paternity reflect factors that may not increase with age. Advanced paternal age associates with increased risk for psychiatric and developmental disorders in offspring. Here, Taylor et al. utilize parent-child trio exome sequencing data sets to estimate the contribution of paternal age-related de novo mutations to multiple disorders, including heart disease and schizophrenia.
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Wang SH, Hsiao PC, Yeh LL, Liu CM, Liu CC, Hwang TJ, Hsieh MH, Chien YL, Lin YT, Huang YT, Chen CY, Chandler SD, Faraone SV, Neale B, Glatt SJ, Tsuang MT, Hwu HG, Chen WJ. Advanced Paternal Age and Early Onset of Schizophrenia in Sporadic Cases: Not Confounded by Parental Polygenic Risk for Schizophrenia. Biol Psychiatry 2019; 86:56-64. [PMID: 30926130 DOI: 10.1016/j.biopsych.2019.01.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Revised: 01/24/2019] [Accepted: 01/24/2019] [Indexed: 01/06/2023]
Abstract
BACKGROUND Whether paternal age effect on schizophrenia is a causation or just an association due to confounding by selection into late parenthood is still debated. We investigated the association between paternal age and early onset of schizophrenia in offspring, controlling for both paternal and maternal predisposition to schizophrenia as empirically estimated using polygenic risk score (PRS) derived from the Psychiatric Genomics Consortium. METHODS Among 2923 sporadic schizophrenia cases selected from the Schizophrenia Trio Genomic Research in Taiwan project, 1649 had parents' genotyping data. The relationships of paternal schizophrenia PRS to paternal age at first birth (AFB) and of maternal schizophrenia PRS to maternal AFB were examined. A logistic regression model of patients' early onset of schizophrenia (≤18 years old) on paternal age was conducted. RESULTS Advanced paternal age over 20 years exhibited a trend of an increasing proportion of early onset of schizophrenia (odds ratio per 10-year increase in paternal age = 1.28, p = .007) after adjusting for maternal age, sex, and age. Older paternal AFB also exhibited an increasing trend of paternal schizophrenia PRS. Additionally, a U-shaped relationship between maternal AFB and maternal schizophrenia PRS was observed. After adjusting for both paternal and maternal schizophrenia PRS, the association of paternal age with patients' early onset of schizophrenia remained (odds ratio = 1.29, p = .04). CONCLUSIONS The association between paternal age and early onset of schizophrenia was not confounded by parental PRS for schizophrenia, which partially captures parental genetic vulnerability to schizophrenia. Our findings support an independent role of paternal age per se in increased risk of early onset of schizophrenia in offspring.
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Affiliation(s)
- Shi-Heng Wang
- Departments of Public Health and Occupational Safety and Health, College of Public Health, China Medical University, Taichung, Taiwan
| | - Po-Chang Hsiao
- Institute of Epidemiology and Preventive Medicine, College of Public Health, Taipei, Taiwan
| | - Ling-Ling Yeh
- Department of Healthcare Administration, College of Medical and Health Science, Asia University, Taichung, Taiwan
| | - Chih-Min Liu
- Department of Psychiatry, College of Medicine and National Taiwan University Hospital, Taipei, Taiwan
| | - Chen-Chung Liu
- Department of Psychiatry, College of Medicine and National Taiwan University Hospital, Taipei, Taiwan
| | - Tzung-Jeng Hwang
- Department of Psychiatry, College of Medicine and National Taiwan University Hospital, Taipei, Taiwan
| | - Ming H Hsieh
- Department of Psychiatry, College of Medicine and National Taiwan University Hospital, Taipei, Taiwan
| | - Yi-Ling Chien
- Department of Psychiatry, College of Medicine and National Taiwan University Hospital, Taipei, Taiwan
| | - Yi-Ting Lin
- Department of Psychiatry, College of Medicine and National Taiwan University Hospital, Taipei, Taiwan
| | - Yen-Tsung Huang
- Institute of Statistical Science, Academia Sinica, Taipei, Taiwan
| | - Chia-Yen Chen
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts
| | - Sharon D Chandler
- Center for Behavioral Genomics, Department of Psychiatry and Institute for Genomic Medicine, University of California San Diego, La Jolla, California
| | - Stephen V Faraone
- Departments of Psychiatry and Behavioral Sciences and Neuroscience and Physiology, Medical Genetics Research Center, State University of New York Upstate Medical University, Syracuse, New York
| | - Benjamin Neale
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts
| | - Stephen J Glatt
- Departments of Psychiatry and Behavioral Sciences and Neuroscience and Physiology, Medical Genetics Research Center, State University of New York Upstate Medical University, Syracuse, New York
| | - Ming T Tsuang
- Center for Behavioral Genomics, Department of Psychiatry and Institute for Genomic Medicine, University of California San Diego, La Jolla, California
| | - Hai-Gwo Hwu
- Department of Psychiatry, College of Medicine and National Taiwan University Hospital, Taipei, Taiwan; Institute of Brain and Mind Sciences, College of Medicine, Taipei, Taiwan
| | - Wei J Chen
- Institute of Epidemiology and Preventive Medicine, College of Public Health, Taipei, Taiwan; Department of Public Health, College of Public Health, Taipei, Taiwan; Centers of Genomic and Precision Medicine, National Taiwan University, Taipei, Taiwan.
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Malaspina D, Kranz T, Kleinhaus K, Daboul S, Rothman K, Gilman C, Getz M, Harlap S, Friedlander Y. Short duration of marriage at conception as an independent risk factor for schizophrenia. Schizophr Res 2019; 208:190-195. [PMID: 30857873 DOI: 10.1016/j.schres.2019.03.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 01/28/2019] [Accepted: 03/02/2019] [Indexed: 01/22/2023]
Abstract
UNLABELLED Short duration of marriage (DoM) is a risk factor for preeclampsia that is also related to the risk for schizophrenia. This analysis examined the risk for schizophrenia associated with DoM and its independence from parental psychiatric disorders, parental ages and fathers' age at marriage. METHOD Relative Risks (RR) for schizophrenia were estimated using continuous and stratified Cox proportional hazards models in the 90,079 offspring from the prospective population-based Jerusalem birth cohort study (1964-1976). Schizophrenia diagnos in offspring and parental diagnoses of schizophrenia or other psychiatric conditions were identified by cross-linkage to Israel's psychiatric case registry. DoM and paternal age at marriage were abstracted from birth certificates. RESULTS In the full model, RR for schizophrenia decreased for each 5 years DoM: 0.83 (0.75-0.95), ptrend = 0.0015. Stratified analyses showed the greatest RR risk for DoM <2 years: 1.53 (1.11-1.66) with lesser risk for 2-4 years DoM: 1.38 (1.05-1.81) compared to more DOM of 10+ years. DoM effects were independent from parental psychiatric diagnoses (RRs = 2-6, p~0.00001), paternal age (1.34: p = 0.0001 /5 years- including fathers of 25-34 years). The apparent risk related to later fathers' age at marriage (1.27: p < 0.0001) was eliminated in after accounting for DoM and later paternal age. CONCLUSIONS Offspring born to couples married for less than 3 years, across all paternal ages, harbored a small increased risk for schizophrenia, which was independent of parental psychiatric disorders and paternal age. Fathers who married late had particularly short DoM, which, along with paternal age, completely explained the risks related to later paternal age at marriage. Further studies are needed to replicate these results and examine if pathogenic pathways include prenatal immune activation.
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Affiliation(s)
- Dolores Malaspina
- Icahn School of Medicine at Mt Sinai, Department of Psychiatry, New York, NY 10128, USA.
| | - Thorsten Kranz
- Skirball Institute of Biomolecular Medicine, Departments of Cell Biology, Physiology & Neuroscience and Psychiatry, New York University, New York, NY, USA; Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt, Germany
| | | | - Sulaima Daboul
- Icahn School of Medicine at Mt Sinai, Department of Psychiatry, New York, NY 10128, USA
| | - Karen Rothman
- Department of Psychology, University of Miami, Coral Gables, FL 33124, USA
| | - Caitlin Gilman
- Department of Pediatrics, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Mara Getz
- Mailman School of Public Health, Columbia University, New York, NY 10032, USA
| | - Susan Harlap
- Unit of Epidemiology, School of Public Health, Hebrew University of Jerusalem, Israel
| | - Yechiel Friedlander
- Unit of Epidemiology, School of Public Health, Hebrew University of Jerusalem, Israel
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Kojima M, Yassin W, Owada K, Aoki Y, Kuwabara H, Natsubori T, Iwashiro N, Gonoi W, Takao H, Kasai K, Abe O, Kano Y, Yamasue H. Neuroanatomical Correlates of Advanced Paternal and Maternal Age at Birth in Autism Spectrum Disorder. Cereb Cortex 2019; 29:2524-2532. [PMID: 29800092 DOI: 10.1093/cercor/bhy122] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Indexed: 12/22/2022] Open
Abstract
Although advanced paternal and maternal age at birth (PA/MA) increases the risk of autism spectrum disorder (ASD), the underlying neurobiological mechanisms are not fully understood. To explore the neuroanatomical correlates of advanced PA/MA, the current study conducted brain morphometric analyses in 39 high-functioning adult males with ASD and 39 age-, intellectual level-, and parental socioeconomic background-matched, typically developed (TD) males. Whole-brain analysis revealed that the regional gray matter volume (GMV) in bilateral posterior cingulate cortex (PCC) and precuneus (PCU) were significantly smaller in the individuals with ASD than in TD subjects (false discovery rate-corrected P = 0.014). Additional analyses of the constituents of GMV reduction in these brain regions revealed that the cortical thickness of the right ventral PCC was significantly thinner (P = 0.014) and the surface area of bilateral PCU was significantly smaller (left: P = 0.001; right: P = 0.049) in the adults with ASD, compared with TD subjects. Although the analyses were exploratory, the thinner cortical thickness of right ventral PCC was significantly correlated with older PA in the ASD individuals (P = 0.028). The current findings shed new light on the neurobiological mechanisms underlying the link between advanced PA and ASD.
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Affiliation(s)
- Masaki Kojima
- Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Walid Yassin
- Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Keiho Owada
- Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Yuta Aoki
- Department of Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Hitoshi Kuwabara
- Department of Psychiatry, The University of Hamamatsu School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu City, Shizuoka, Japan
| | - Tatsunobu Natsubori
- Department of Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Norichika Iwashiro
- Department of Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Wataru Gonoi
- Department of Radiology, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Hidemasa Takao
- Department of Radiology, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Kiyoto Kasai
- Department of Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Osamu Abe
- Department of Radiology, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Yukiko Kano
- Department of Child Neuropsychiatry, School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Hidenori Yamasue
- Department of Psychiatry, The University of Hamamatsu School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu City, Shizuoka, Japan
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Janecka M, Hansen SN, Modabbernia A, Browne HA, Buxbaum JD, Schendel DE, Reichenberg A, Parner ET, Grice DE. Parental Age and Differential Estimates of Risk for Neuropsychiatric Disorders: Findings From the Danish Birth Cohort. J Am Acad Child Adolesc Psychiatry 2019; 58:618-627. [PMID: 30825496 PMCID: PMC10790681 DOI: 10.1016/j.jaac.2018.09.447] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 08/27/2018] [Accepted: 09/14/2018] [Indexed: 02/08/2023]
Abstract
OBJECTIVE Parental age at birth has been shown to affect the rates of a range of neurodevelopmental disorders, but the understanding of the mechanisms through which it mediates different outcomes is still lacking. A population-based cohort was used to assess differential effects of parental age on estimates of risk across pediatric-onset neuropsychiatric disorders: autism spectrum disorder (ASD), attention-deficit/hyperactivity disorder (ADHD), obsessive-compulsive disorder (OCD), and Tourette's disorder/chronic tic disorder (TD/CT). METHOD The study cohort included all singleton births in Denmark from 1980 through 2007 with full information on parental ages (N = 1,490,745) and was followed through December 31, 2013. Cases of ASD, ADHD, OCD, and TD/CT were identified in the Danish Psychiatric Central Register and the National Patient Register. Associations with parental age were modeled using a stratified Cox regression, allowing for changes in baseline diagnostic rates across time. RESULTS Younger parental age was significantly associated with increased estimates of risk for ADHD and TD/CT, whereas older parental age was associated with ASD and OCD. Except for OCD, no evidence for differential effects of parental ages on male versus female offspring was observed. CONCLUSION This study provides novel evidence for the association between age at parenthood and TD/CT and OCD and for the first time shows in a population-based sample that parental age confers differential risk rates for pediatric-onset psychiatric disorders. These results are consistent with a model of shared and unshared risk architecture for pediatric-onset neuropsychiatric conditions, highlighting unique contributions of maternal and paternal ages.
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Affiliation(s)
- Magdalena Janecka
- Icahn School of Medicine at Mount Sinai, New York, NY; Seaver Autism Center for Research and Treatment
| | | | | | - Heidi A Browne
- Icahn School of Medicine at Mount Sinai, New York, NY; Icahn School of Medicine at Mount Sinai, Division of Tics, OCD, and Related Disorders
| | - Joseph D Buxbaum
- Icahn School of Medicine at Mount Sinai, New York, NY; Seaver Autism Center for Research and Treatment; Friedman Brain Institute and Mindich Child Health and Development Institute
| | - Diana E Schendel
- Section for Epidemiology, the National Centre for Register-Based Research, Aarhus University, Aarhus, Denmark; Lundbeck Foundation Initiative for Integrative Psychiatric Research (iPSYCH), Aarhus
| | - Abraham Reichenberg
- Icahn School of Medicine at Mount Sinai, New York, NY; Seaver Autism Center for Research and Treatment; Friedman Brain Institute and Mindich Child Health and Development Institute; Institute for Translational Epidemiology
| | | | - Dorothy E Grice
- Icahn School of Medicine at Mount Sinai, New York, NY; Icahn School of Medicine at Mount Sinai, Division of Tics, OCD, and Related Disorders; Friedman Brain Institute and Mindich Child Health and Development Institute.
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Bölte S, Girdler S, Marschik PB. The contribution of environmental exposure to the etiology of autism spectrum disorder. Cell Mol Life Sci 2019; 76:1275-1297. [PMID: 30570672 PMCID: PMC6420889 DOI: 10.1007/s00018-018-2988-4] [Citation(s) in RCA: 242] [Impact Index Per Article: 48.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 11/14/2018] [Accepted: 12/04/2018] [Indexed: 01/04/2023]
Abstract
Autism spectrum disorder (ASD) is a neurodevelopmental condition of heterogeneous etiology. While it is widely recognized that genetic and environmental factors and their interactions contribute to autism phenotypes, their precise causal mechanisms remain poorly understood. This article reviews our current understanding of environmental risk factors of ASD and their presumed adverse physiological mechanisms. It comprehensively maps the significance of parental age, teratogenic compounds, perinatal risks, medication, smoking and alcohol use, nutrition, vaccination, toxic exposures, as well as the role of extreme psychosocial factors. Further, we consider the role of potential protective factors such as folate and fatty acid intake. Evidence indicates an increased offspring vulnerability to ASD through advanced maternal and paternal age, valproate intake, toxic chemical exposure, maternal diabetes, enhanced steroidogenic activity, immune activation, and possibly altered zinc-copper cycles and treatment with selective serotonin reuptake inhibitors. Epidemiological studies demonstrate no evidence for vaccination posing an autism risk. It is concluded that future research needs to consider categorical autism, broader autism phenotypes, as well as autistic traits, and examine more homogenous autism variants by subgroup stratification. Our understanding of autism etiology could be advanced by research aimed at disentangling the causal and non-causal environmental effects, both founding and moderating, and gene-environment interplay using twin studies, longitudinal and experimental designs. The specificity of many environmental risks for ASD remains unknown and control of multiple confounders has been limited. Further understanding of the critical windows of neurodevelopmental vulnerability and investigating the fit of multiple hit and cumulative risk models are likely promising approaches in enhancing the understanding of role of environmental factors in the etiology of ASD.
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Affiliation(s)
- Sven Bölte
- Department of Women's and Children's Health, Karolinska Institutet & Child and Adolescent Psychiatry, Stockholm Health Care Services, Center of Neurodevelopmental Disorders (KIND), Centre for Psychiatry Research, Stockholm County Council, Stockholm, Sweden.
- Curtin Autism Research Group, School of Occupational Therapy, Social Work and Speech Pathology, Curtin University, Perth, WA, Australia.
| | - Sonya Girdler
- Curtin Autism Research Group, School of Occupational Therapy, Social Work and Speech Pathology, Curtin University, Perth, WA, Australia
| | - Peter B Marschik
- Department of Women's and Children's Health, Karolinska Institutet & Child and Adolescent Psychiatry, Stockholm Health Care Services, Center of Neurodevelopmental Disorders (KIND), Centre for Psychiatry Research, Stockholm County Council, Stockholm, Sweden
- Department of Child and Adolescent Psychiatry and Psychotherapy, University Medical Center Göttingen, Göttingen, Germany
- iDN-interdisciplinary Developmental Neuroscience, Department of Phoniatrics, Medical University of Graz, Graz, Austria
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Foldi CJ, Eyles DW, McGrath JJ, Burne THJ. Increasing paternal age alters anxiety-related behaviour in adult mice. GENES BRAIN AND BEHAVIOR 2018; 18:e12522. [DOI: 10.1111/gbb.12522] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 09/22/2018] [Accepted: 09/24/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Claire J. Foldi
- Queensland Brain Institute; The University of Queensland; St Lucia Queensland Australia
- Department of Physiology; Monash University; Clayton Victoria Australia
| | - Darryl W. Eyles
- Queensland Brain Institute; The University of Queensland; St Lucia Queensland Australia
- Queensland Centre for Mental Health Research; The Park Centre for Mental Health; Richlands Queensland Australia
| | - John J. McGrath
- Queensland Brain Institute; The University of Queensland; St Lucia Queensland Australia
- Queensland Centre for Mental Health Research; The Park Centre for Mental Health; Richlands Queensland Australia
| | - Thomas H. J. Burne
- Queensland Brain Institute; The University of Queensland; St Lucia Queensland Australia
- Queensland Centre for Mental Health Research; The Park Centre for Mental Health; Richlands Queensland Australia
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50
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Alonso-Gonzalez A, Rodriguez-Fontenla C, Carracedo A. De novo Mutations (DNMs) in Autism Spectrum Disorder (ASD): Pathway and Network Analysis. Front Genet 2018; 9:406. [PMID: 30298087 PMCID: PMC6160549 DOI: 10.3389/fgene.2018.00406] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 09/04/2018] [Indexed: 12/14/2022] Open
Abstract
Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder (NDD) defined by impairments in social communication and social interactions, accompanied by repetitive behavior and restricted interests. ASD is characterized by its clinical and etiological heterogeneity, which makes it difficult to elucidate the neurobiological mechanisms underlying its pathogenesis. Recently, de novo mutations (DNMs) have been recognized as strong source of genetic causality. Here, we review different aspects of the DNMs associated with ASD, including their functional annotation and classification. In addition, we also focus on the most recent advances in this area, such as the detection of PZMs (post-zygotic mutations), and we outline the main bioinformatics tools commonly employed to study these. Some of these approaches available allow DNMs to be analyzed in the context of gene networks and pathways, helping to shed light on the biological processes underlying ASD. To end this review, a brief insight into the future perspectives for genetic studies into ASD will be provided.
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Affiliation(s)
- Aitana Alonso-Gonzalez
- Grupo de Medicina Xenómica, Fundación Instituto de Investigación Sanitaria de Santiago de Compostela, Center for Research in Molecular Medicine and Chronic Diseases, Universidade de Santiago de Compostela, Santiago, Spain
| | - Cristina Rodriguez-Fontenla
- Grupo de Medicina Xenómica, CIBERER, Centre for Research in Molecular Medicine and Chronic Diseases, Universidade de Santiago de Compostela, Santiago, Spain
| | - Angel Carracedo
- Grupo de Medicina Xenómica, Fundación Instituto de Investigación Sanitaria de Santiago de Compostela, Center for Research in Molecular Medicine and Chronic Diseases, Universidade de Santiago de Compostela, Santiago, Spain.,Grupo de Medicina Xenómica, CIBERER, Centre for Research in Molecular Medicine and Chronic Diseases, Universidade de Santiago de Compostela, Santiago, Spain
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