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Stöger R, Choi M, Begum K, Leeman G, Emes RD, Melamed P, Bentley GR. Childhood environment influences epigenetic age and methylation concordance of a CpG clock locus in British-Bangladeshi migrants. Epigenetics 2023; 18:2153511. [PMID: 36495138 PMCID: PMC9980690 DOI: 10.1080/15592294.2022.2153511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Migration from one location to another often comes with a change in environmental conditions. Here, we analysed features of DNA methylation in young, adult British-Bangladeshi women who experienced different environments during their childhoods: a) migrants, who grew up in Bangladesh with exposure to comparatively higher pathogen loads and poorer health care, and b) second-generation British-Bangladeshis, born to Bangladeshi parents, who grew up in the UK. We used buccal DNA to estimate DNA methylation-based age (DNAm age) from 14 migrants and 11 second-generation migrants, aged 18-35 years. 'AgeAccel,' a measure of DNAm age, independent of chronological age, showed that the group of women who spent their childhood in Bangladesh had higher AgeAccel (P = 0.028), compared to their UK peers. Since epigenetic clocks have been proposed to be associated with maintenance processes of epigenetic systems, we evaluated the preference for concordant DNA methylation at the luteinizing hormone/choriogonadotropin receptor (LHCGR/LHR) locus, which harbours one of the CpGs contributing to Horvath's epigenetic clock. Measurements on both strands of individual, double-stranded DNA molecules indicate higher stability of DNA methylation states at this LHCGR/LHR locus in samples of women who grew up in Bangladesh. Together, our two independent analytical approaches imply that childhood environments may induce subtle changes that are detectable long after exposure occurred, which might reflect altered activity of the epigenetic maintenance system or a difference in the proportion of cell types in buccal tissue. This exploratory work supports our earlier findings that adverse childhood environments lead to phenotypic life history trade-offs.
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Affiliation(s)
- Reinhard Stöger
- School of Biosciences, University of Nottingham, Nottingham, UK
| | - Minseung Choi
- School of Medicine, Stanford University, Stanford, CA, USA
| | | | - Gregory Leeman
- School of Biosciences, University of Nottingham, Nottingham, UK
| | - Richard D Emes
- School of Veterinary Medicine and Science, University of Nottingham, Nottingham, UK.,Advanced Data Analysis Centre, University of Nottingham, Nottingham, UK
| | - Philippa Melamed
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Gillian R Bentley
- Department of Anthropology, Durham University, Durham, UK.,Wolfson Research Institute for Health and Wellbeing, Durham University, Durham, UK
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Zhang X, Yan H, Yu H, Zhang Y, Tan HY, Zhang D, Yue W. The effects of environmental factors associated with childhood urbanicity on brain structure and cognition. BMC Psychiatry 2023; 23:598. [PMID: 37592210 PMCID: PMC10433654 DOI: 10.1186/s12888-023-05066-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 07/30/2023] [Indexed: 08/19/2023] Open
Abstract
Urbanization is a trend lasting for more than one century worldwide. Four hundred ninety male and female adult Chinese Han participants with different urban and rural childhoods were included in this study. Early-life urban environment was found benefit for total grey matter volume (GMV), dorsolateral prefrontal cortex (DLPFC) GMV, temporal pole (TP) GMV and cognition function, and negatively correlated with medial prefrontal cortex (MPFC) GMV. Regression analysis showed that maternal education was a protective factor for total and DLPFC GMVs, while having siblings was better for MPFC GMV. Total, DLPFC and TP GMVs acts mediation effects between childhood urbanicity and different cognitive domains. These findings may suggest some pros and cons on brain structure associated with childhood urbanicity and related environmental factors.
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Affiliation(s)
- Xiao Zhang
- Institute of Mental Health, National Clinical Research Center for Mental Disorders, Peking University Sixth Hospital, 51 Huayuanbei Road, Haidian District, Beijing, 100191, China.
- NHC Key Laboratory of Mental Health (Peking University), 51 Huayuanbei Road, Haidian District, Beijing, 100191, China.
| | - Hao Yan
- Institute of Mental Health, National Clinical Research Center for Mental Disorders, Peking University Sixth Hospital, 51 Huayuanbei Road, Haidian District, Beijing, 100191, China
- NHC Key Laboratory of Mental Health (Peking University), 51 Huayuanbei Road, Haidian District, Beijing, 100191, China
| | - Hao Yu
- Department of Psychiatry, Jining Medical University, Jining, Shandong, China
| | - Yuyanan Zhang
- Institute of Mental Health, National Clinical Research Center for Mental Disorders, Peking University Sixth Hospital, 51 Huayuanbei Road, Haidian District, Beijing, 100191, China
- NHC Key Laboratory of Mental Health (Peking University), 51 Huayuanbei Road, Haidian District, Beijing, 100191, China
| | - Hao Yang Tan
- Lieber Institute for Brain Development, Baltimore, MD, 21205, US
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, US
| | - Dai Zhang
- Institute of Mental Health, National Clinical Research Center for Mental Disorders, Peking University Sixth Hospital, 51 Huayuanbei Road, Haidian District, Beijing, 100191, China
- NHC Key Laboratory of Mental Health (Peking University), 51 Huayuanbei Road, Haidian District, Beijing, 100191, China
- PKU-IDG/McGovern Institute for Brain Research of Peking University, &Chinese Institute for Brain Research, 51 Huayuanbei Road, Haidian District, Beijing, 100191, China
| | - Weihua Yue
- Institute of Mental Health, National Clinical Research Center for Mental Disorders, Peking University Sixth Hospital, 51 Huayuanbei Road, Haidian District, Beijing, 100191, China.
- NHC Key Laboratory of Mental Health (Peking University), 51 Huayuanbei Road, Haidian District, Beijing, 100191, China.
- PKU-IDG/McGovern Institute for Brain Research of Peking University, &Chinese Institute for Brain Research, 51 Huayuanbei Road, Haidian District, Beijing, 100191, China.
- Research Unit of Diagnosis and Treatment of Mood Cognitive Disorder, Chinese Academy of Medical Sciences, 51 Huayuanbei Road, Haidian District, Beijing, 100191, China.
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Zorlular M, Uzer T. Investigating the relationship between sensory processing sensitivity and relationship satisfaction: mediating roles of negative affectivity and conflict resolution style. Curr Psychol 2022; 42:1-10. [PMID: 36187901 PMCID: PMC9510169 DOI: 10.1007/s12144-022-03796-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/16/2022] [Indexed: 11/24/2022]
Abstract
Very few studies have investigated the relationship between sensory processing sensitivity (SPS) and interpersonal variables; none has particularly focused on romantic relationship satisfaction. In the context of romantic relationships, this study aimed to identify whether SPS is a risk factor (hypothesizing that traits make individuals more vulnerable to the effects of adverse environments) or a susceptibility marker (hypothesizing that traits make individuals more susceptible to the effects of both nourishing and adverse environments). To understand this, we tested whether an increased level of SPS is associated with a decreased level of romantic relationship satisfaction through negative affectivity and conflict resolution styles. Furthermore, we tested whether these proposed relationships intensified when the childhood environment was negative. A total of 206 unmarried young adults who had been in a romantic relationship for at least two years completed the measures of SPS, childhood environment, negative affectivity, conflict resolution styles, and relationship satisfaction. The results indicated that negative affectivity and negative conflict resolution styles mediated the association between SPS and satisfaction in a relationship; however, childhood environment did not moderate these relationships. These findings suggest that beyond childhood factors, SPS is an independent risk factor for developing negative outcomes in romantic relationships. This study also significantly contributes to the literature by revealing the possible mechanisms between SPS and romantic relationship satisfaction.
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Affiliation(s)
- Melis Zorlular
- Department of Psychology, TED University, Ziya Gokalp Blv. No:48, 06420 Ankara, Turkey
| | - Tuğba Uzer
- Department of Psychology, TED University, Ziya Gokalp Blv. No:48, 06420 Ankara, Turkey
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Hakulinen C, Mok PLH, Horsdal HT, Pedersen CB, Mortensen PB, Agerbo E, Webb RT. Parental income as a marker for socioeconomic position during childhood and later risk of developing a secondary care-diagnosed mental disorder examined across the full diagnostic spectrum: a national cohort study. BMC Med 2020; 18:323. [PMID: 33190641 PMCID: PMC7667856 DOI: 10.1186/s12916-020-01794-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 09/24/2020] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Links between parental socioeconomic position during childhood and subsequent risks of developing mental disorders have rarely been examined across the diagnostic spectrum. We conducted a comprehensive analysis of parental income level, including income mobility, during childhood and risks for developing mental disorders diagnosed in secondary care in young adulthood. METHODS National cohort study of persons born in Denmark 1980-2000 (N = 1,051,265). Parental income was measured during birth year and at ages 5, 10 and 15. Follow-up began from 15th birthday until mental disorder diagnosis or 31 December 2016, whichever occurred first. Hazard ratios and cumulative incidence were estimated. RESULTS A quarter (25.2%; 95% CI 24.8-25.6%) of children born in the lowest income quintile families will have a secondary care-diagnosed mental disorder by age 37, versus 13.5% (13.2-13.9%) of those born in the highest income quintile. Longer time spent living in low-income families was associated with higher risks of developing mental disorders. Associations were strongest for substance misuse and personality disorders and weaker for mood disorders and anxiety/somatoform disorders. An exception was eating disorders, with low parental income being associated with attenuated risk. For all diagnostic categories examined except for eating disorders, downward socioeconomic mobility was linked with higher subsequent risk and upward socioeconomic mobility with lower subsequent risk of developing mental disorders. CONCLUSIONS Except for eating disorders, low parental income during childhood is associated with subsequent increased risk of mental disorders diagnosed in secondary care across the diagnostic spectrum. Early interventions to mitigate the disadvantages linked with low income, and better opportunities for upward socioeconomic mobility could reduce social and mental health inequalities.
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Affiliation(s)
- Christian Hakulinen
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, P.O. Box 21, 00014, Helsinki, Finland.
| | - Pearl L H Mok
- Centre for Pharmacoepidemiology and Drug Safety, Division of Pharmacy and Optometry, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK
| | - Henriette Thisted Horsdal
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus, Denmark.,NCRR National Centre for Register-Based Research, School of Business and Social Sciences, Aarhus University, Aarhus V, Denmark
| | - Carsten B Pedersen
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus, Denmark.,NCRR National Centre for Register-Based Research, School of Business and Social Sciences, Aarhus University, Aarhus V, Denmark.,Centre for Integrated Register-Based Research, CIRRAU, Aarhus University, Aarhus, Denmark
| | - Preben B Mortensen
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus, Denmark.,NCRR National Centre for Register-Based Research, School of Business and Social Sciences, Aarhus University, Aarhus V, Denmark
| | - Esben Agerbo
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus, Denmark.,NCRR National Centre for Register-Based Research, School of Business and Social Sciences, Aarhus University, Aarhus V, Denmark.,Centre for Integrated Register-Based Research, CIRRAU, Aarhus University, Aarhus, Denmark
| | - Roger T Webb
- Centre for Mental Health and Safety, Division of Psychology and Mental Health, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK.,NIHR Greater Manchester Patient Safety Translational Research Centre, Manchester, UK
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Lång E, Nystedt P. Two by two, inch by inch: Height as an indicator of environmental conditions during childhood and its influence on earnings over the life cycle among twins. Econ Hum Biol 2018; 28:53-66. [PMID: 29288870 DOI: 10.1016/j.ehb.2017.12.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 11/20/2017] [Accepted: 12/01/2017] [Indexed: 06/07/2023]
Abstract
Adult height is a function of genetic predispositions and environmental influences during childhood. Hence, any variation in height among monozygotic twins, who share genetic predispositions, is bound to reflect differences in their environmental exposure. Therefore, a height premium in earnings among monozygotic twins also reflects such exposure. In this study, we analyze the height premium over the life cycle among Swedish twins, 10,000 of whom are monozygotic. The premium is relatively constant over the life cycle, amounting to 5-6% higher earnings per decimeter for men and less for women, suggesting that environmental conditions in childhood and youth affect earnings over most of the adult life course. The premium is larger below median height for men and above median height for young women. The estimates are similar for monozygotic and dizygotic twins, indicating that environmentally and genetically induced height differences are similarly associated with earnings.
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Affiliation(s)
- Elisabeth Lång
- Department of Management and Engineering, Linköping University, 58183 Linköping, Sweden.
| | - Paul Nystedt
- Jönköping Academy for Improvement of Health and Welfare, Jönköping, Sweden; Jönköping International Business School, Box 1026, 55111 Jönköping, Sweden.
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Abramitzky R, Boustan LP, Eriksson K. Have the poor always been less likely to migrate? Evidence from inheritance practices during the age of mass migration. J Dev Econ 2013; 102:2-14. [PMID: 26609192 PMCID: PMC4655887 DOI: 10.1016/j.jdeveco.2012.08.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Using novel data on 50,000 Norwegian men, we study the effect of wealth on the probability of internal or international migration during the Age of Mass Migration (1850-1913), a time when the US maintained an open border to European immigrants. We do so by exploiting variation in parental wealth and in expected inheritance by birth order, gender composition of siblings, and region. We find that wealth discouraged migration in this era, suggesting that the poor could be more likely to move if migration restrictions were lifted today. We discuss the implications of these historical findings to developing countries.
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Affiliation(s)
- Ran Abramitzky
- Department of Economics, Stanford University, 579 Serra Mall, Stanford, CA 94305, United States
- NBER, 1050 Massachusetts Avenue, Cambridge, MA 02138, United States
| | - Leah Platt Boustan
- NBER, 1050 Massachusetts Avenue, Cambridge, MA 02138, United States
- Department of Economics, UCLA, 8283 Bunche Hall, Los Angeles, CA 90095, United States
| | - Katherine Eriksson
- Department of Economics, UCLA, 8283 Bunche Hall, Los Angeles, CA 90095, United States
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