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Peterson CS, Zhu Y, Germine LT, Dunn EC. Associations Between Childhood Trauma Characteristics and Theory of Mind in Adults: Results From a Large, Diverse Sample. Child Psychiatry Hum Dev 2024; 55:719-730. [PMID: 36168019 PMCID: PMC10942752 DOI: 10.1007/s10578-022-01442-4] [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] [Accepted: 09/07/2022] [Indexed: 01/25/2023]
Abstract
Theory of mind (ToM) is an essential social cognitive process encompassing abilities to represent and understand others' mental states. Although previous reports linked childhood trauma to social cognitive deficits, how characteristics of trauma exposure, such as subtype or timing, affect ToM remains unaddressed. Using data from a diverse adult sample (n = 2200), we tested whether exposure type and first exposure timing of common childhood trauma associated with ToM. Neither interpersonal loss (β = - 0.25, p = 0.170, [- 0.61, 0.10]) nor child maltreatment (β = - 0.21, p = 0.369, [- 0.66, 0.25]) was associated with lower ToM. There was no effect of timing of age at which trauma was experienced (F = 2.19, p = 0.087). While we did not identify age-dependent effects, future studies should examine links between timing or chronicity of prospectively reported childhood trauma and social cognition. Understanding of how childhood experiences shape ToM could reveal mechanisms underlying social cognition development and inform prevention efforts.
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Affiliation(s)
- Claire S Peterson
- Psychiatric and Neurodevelopmental Genetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA.
- Medical Scientist Training Program, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA.
| | - Yiwen Zhu
- Psychiatric and Neurodevelopmental Genetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Laura T Germine
- Institute for Technology in Psychiatry, McLean Hospital, Belmont, MA, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Erin C Dunn
- Psychiatric and Neurodevelopmental Genetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA
- Center On the Developing Child, Harvard University, Cambridge, MA, USA
- Henry and Alison McCance Center for Brain Health, Massachusetts General Hospital, Boston, MA, USA
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2
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Högberg B, Baranowska-Rataj A. Effects of parental job loss on psychotropic drug use in children: Long-term effects, timing, and cumulative exposure. Adv Life Course Res 2024; 60:100607. [PMID: 38569249 DOI: 10.1016/j.alcr.2024.100607] [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] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 01/26/2024] [Accepted: 02/23/2024] [Indexed: 04/05/2024]
Abstract
Intra-family crossover effects triggered by job losses have received growing attention across scientific disciplines, but existing research has reached discrepant conclusions concerning if, and if so how, parental job losses affect child mental health. Drawing on sociological models of stress and life course epidemiology, we ask if parental job losses have long-term effects on child mental health, and if these effects are conditional on the timing of, or the cumulative exposure to, job losses. We use intergenerationally linked Swedish register data combined with entropy balance and structural nested mean models for the analyses. The data allow us to track 400,000 children over 14 years and thereby test different life-course models of cross-over effects. We identify involuntary job losses using information on workplace closures, thus reducing the risk of confounding. Results show that paternal but not maternal job loss significantly increases the risk of psychotropic drug use among children, that the average effects are modest in size (less than 4% in relative terms), that they may persist for up to five years, and that they are driven by children aged 6-10 years. Moreover, cumulative exposure to multiple job losses are more harmful than zero or one job loss.
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Affiliation(s)
- Björn Högberg
- Department of Social Work, Umeå University, and Centre for Demographic and Ageing Research, Umeå University, Sweden.
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von Arx AS, Dawson K, Lin HY, Mattei D, Notter T, Meyer U, Schalbetter SM. Prefrontal microglia deficiency during adolescence disrupts adult cognitive functions and synaptic structures: A follow-up study in female mice. Brain Behav Immun 2023; 111:230-246. [PMID: 37100210 DOI: 10.1016/j.bbi.2023.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 03/30/2023] [Accepted: 04/23/2023] [Indexed: 04/28/2023] Open
Abstract
The prefrontal cortex (PFC) provides executive top-down control of a variety of cognitive processes. A distinctive feature of the PFC is its protracted structural and functional maturation throughout adolescence to early adulthood, which is necessary for acquiring mature cognitive abilities. Using a mouse model of cell-specific, transient and local depletion of microglia, which is based on intracerebral injection of clodronate disodium salt (CDS) into the PFC of adolescent male mice, we recently demonstrated that microglia contribute to the functional and structural maturation of the PFC in males. Because microglia biology and cortical maturation are partly sexually dimorphic, the main objective of the present study was to examine whether microglia similarly regulate this maturational process in female mice as well. Here, we show that a single, bilateral intra-PFC injection of CDS in adolescent (6-week-old) female mice induces a local and transient depletion (70 to 80% decrease from controls) of prefrontal microglia during a restricted window of adolescence without affecting neuronal or astrocytic cell populations. This transient microglia deficiency was sufficient to disrupt PFC-associated cognitive functions and synaptic structures at adult age. Inducing transient prefrontal microglia depletion in adult female mice did not cause these deficits, demonstrating that the adult PFC, unlike the adolescent PFC, is resilient to transient microglia deficiency in terms of lasting cognitive and synaptic maladaptations. Together with our previous findings in males, the present findings suggest that microglia contribute to the maturation of the female PFC in a similar way as to the prefrontal maturation occurring in males.
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Affiliation(s)
- Anina S von Arx
- Institute of Veterinary Pharmacology and Toxicology, Vetsuisse, University of Zurich, Zurich, Switzerland
| | - Kara Dawson
- Institute of Veterinary Pharmacology and Toxicology, Vetsuisse, University of Zurich, Zurich, Switzerland
| | - Han-Yu Lin
- Institute of Veterinary Pharmacology and Toxicology, Vetsuisse, University of Zurich, Zurich, Switzerland
| | - Daniele Mattei
- MSSM Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Tina Notter
- Institute of Pharmacology and Toxicology, University of Zurich, Zurich, Switzerland; Neuroscience Center Zurich, University of Zurich and ETH Zurich, Zurich, Switzerland
| | - Urs Meyer
- Institute of Veterinary Pharmacology and Toxicology, Vetsuisse, University of Zurich, Zurich, Switzerland; Neuroscience Center Zurich, University of Zurich and ETH Zurich, Zurich, Switzerland.
| | - Sina M Schalbetter
- Institute of Veterinary Pharmacology and Toxicology, Vetsuisse, University of Zurich, Zurich, Switzerland
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Dunn EC, Busso DS, Davis KA, Smith AD, Mitchell C, Tiemeier H, Susser ES. Sensitive Periods for the Effect of Child Maltreatment on Psychopathology Symptoms in Adolescence. Complex Psychiatry 2023; 9:145-153. [PMID: 37900909 PMCID: PMC10601948 DOI: 10.1159/000530120] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 02/20/2023] [Indexed: 10/31/2023] Open
Abstract
Introduction Child maltreatment is among the strongest risk factors for mental disorders. However, little is known about whether there are ages when children may be especially vulnerable to its effects. We sought to identify potential sensitive periods when exposure to the 2 most common types of maltreatment (neglect and harsh physical discipline) had a particularly detrimental effect on youth mental health. Methods Data came from the Future of Families and Child Wellbeing Study (FFCWS), a birth cohort oversampled from "fragile families" (n = 3,474). Maltreatment was assessed at 3, 5, and 9 years of age using an adapted version of the Parent-Child Conflict Tactics Scales (CTS-PC). Using least angle regression, we examined the relationship between repeated measures of exposure to maltreatment on psychopathology symptoms at age 15 years (Child Behavior Checklist; CBCL/6-18). For comparison, we evaluated the strength of evidence to support the existence of sensitive periods in relation to an accumulation of risk model. Results We identified sensitive periods for harsh physical discipline, whereby psychopathology symptom scores were highest among girls exposed at age 9 years (r2 = 0.67 internalizing symptoms; r2 = 1% externalizing symptoms) and among boys exposed at age 5 years (r2 = 0.41%). However, for neglect, the accumulation of risk model explained more variability in psychopathology symptoms for both boys and girls. Conclusion Child maltreatment may have differential effects based on the child's sex, type of exposure, and the age at which it occurs. These findings provide additional evidence for clinicians assessing the benefits and drawbacks of screening efforts and point toward possible mechanisms driving increased vulnerability to psychopathology.
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Affiliation(s)
- Erin C. Dunn
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA
- Stanley Center for Psychiatric Research, The Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - Daniel S. Busso
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
- Harvard Graduate School of Education, Cambridge, MA, USA
| | - Kathryn A. Davis
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Andrew D.A.C. Smith
- Applied Statistics Group, University of the West of England at Bristol, Bristol, UK
| | - Colter Mitchell
- Institute for Social Research, University of Michigan, Ann Arbor, MI, USA
| | - Henning Tiemeier
- Department of Child Psychiatry, Erasmus Medical Center, Rotterdam, The Netherlands
- Department of Social and Behavioral Science, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Ezra S. Susser
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA
- New York State Psychiatric Institute, New York City, NY, USA
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Zhu Y, Lussier AA, Smith ADAC, Simpkin AJ, Suderman MJ, Walton E, Relton CL, Dunn EC. Examining the epigenetic mechanisms of childhood adversity and sensitive periods: A gene set-based approach. Psychoneuroendocrinology 2022; 144:105854. [PMID: 35914392 PMCID: PMC9885844 DOI: 10.1016/j.psyneuen.2022.105854] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 09/03/2021] [Revised: 06/24/2022] [Accepted: 06/24/2022] [Indexed: 02/02/2023]
Abstract
BACKGROUND Sensitive periods are developmental stages of heightened plasticity when life experiences, including exposure to childhood adversity, have the potential to exert more lasting impacts. Epigenetic mechanisms, including DNA methylation (DNAm), may provide a pathway through which adversity induces long-term biological changes. DNAm shifts may be more likely to occur during sensitive periods, especially within genes that regulate the timing of sensitive periods. Here, we investigated the possibility that childhood adversity during specific life stages is associated with DNAm changes in genes known to regulate the timing and duration of sensitive periods. METHODS Genome-wide DNAm profiles came from the Avon Longitudinal Study of Parents and Children (n = 785). We first used principal component analysis (PCA) to summarize DNAm variation across 530 CpG sites mapped to the promoters of 58 genes previously-identified as regulating sensitive periods. Gene-level DNAm summaries were calculated for genes regulating sensitive period opening (ngenes = 15), closing (ngenes = 36), and expression (ngenes = 8). We then performed linear discriminant analysis (LDA) to test associations between seven types of parent-reported, time-varying measures of exposure to childhood adversity and DNAm principal components. To our knowledge, this is the first time LDA has been applied to analyze functionally grouped DNAm data to characterize associations between an environmental exposure and epigenetic differences. RESULTS Suggestive evidence emerged for associations between sexual or physical abuse as well as financial hardship during middle childhood, and DNAm of genetic pathways regulating sensitive period opening and expression. However, no statistically significant associations were identified after multiple testing correction. CONCLUSIONS Our gene set-based method combining PCA and LDA complements epigenome-wide approaches. Although our results were largely null, these findings provide a proof-of-concept for studying time-varying exposures and gene- or pathway-level epigenetic modifications.
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Affiliation(s)
- Yiwen Zhu
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, United States; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, United States.
| | - Alexandre A Lussier
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, United States; Department of Psychiatry, Harvard Medical School, Boston, MA, United States; Stanley Center for Psychiatric Research, The Broad Institute of Harvard and MIT, Cambridge, MA, United States
| | - Andrew D A C Smith
- Mathematics and Statistics Research Group, University of the West of England, Bristol, UK
| | - Andrew J Simpkin
- School of Mathematics, Statistics and Applied Mathematics, National University of Ireland, Galway, Ireland
| | - Matthew J Suderman
- MRC Integrative Epidemiology Unit, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Esther Walton
- Department of Psychology, University of Bath, Bath, UK
| | - Caroline L Relton
- MRC Integrative Epidemiology Unit, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK; Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Erin C Dunn
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, United States; Department of Psychiatry, Harvard Medical School, Boston, MA, United States; Stanley Center for Psychiatric Research, The Broad Institute of Harvard and MIT, Cambridge, MA, United States; Harvard Center on the Developing Child, Cambridge, MA, United States.
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Banica I, Sandre A, Shields GS, Slavich GM, Weinberg A. Associations between lifetime stress exposure and the error-related negativity (ERN) differ based on stressor characteristics and exposure timing in young adults. Cogn Affect Behav Neurosci 2022; 22:672-689. [PMID: 33821458 PMCID: PMC8490486 DOI: 10.3758/s13415-021-00883-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/20/2021] [Indexed: 05/15/2023]
Abstract
Life stress increases risk for multiple forms of psychopathology, in part by altering neural processes involved in performance monitoring. However, the ways in which these stress-cognition effects are influenced by the specific timing and types of life stressors experienced remains poorly understood. To address this gap, we examined how different social-psychological characteristics and developmental timing of stressors are related to the error-related negativity (ERN), a negative-going deflection in the event-related potential (ERP) waveform that is observed from 0 to 100 ms following error commission. A sample of 203 emerging adults performed an ERN-eliciting arrow flanker task and completed an interview-based measure of lifetime stress exposure. Adjusting for stress severity during other developmental periods, there was a small-to-medium effect of stress on performance monitoring, such that more severe total stress exposure, as well as more severe social-evaluative stress in particular, experienced during early adolescence significantly predicted an enhanced ERN. These results suggest that early adolescence may be a sensitive developmental period during which stress exposure may result in lasting adaptations to neural networks implicated in performance monitoring.
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Affiliation(s)
- Iulia Banica
- Department of Psychology, McGill University, 2001 McGill College Avenue, Montréal, Québec, H3A 1G1, Canada
| | - Aislinn Sandre
- Department of Psychology, McGill University, 2001 McGill College Avenue, Montréal, Québec, H3A 1G1, Canada
| | - Grant S Shields
- Department of Psychological Science, University of Arkansas, Fayetteville, AR, USA
| | - George M Slavich
- Cousins Center for Psychoneuroimmunology and Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, CA, USA
| | - Anna Weinberg
- Department of Psychology, McGill University, 2001 McGill College Avenue, Montréal, Québec, H3A 1G1, Canada.
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Musz E, Loiotile R, Chen J, Cusack R, Bedny M. Naturalistic stimuli reveal a sensitive period in cross modal responses of visual cortex: Evidence from adult-onset blindness. Neuropsychologia 2022; 172:108277. [PMID: 35636634 PMCID: PMC9648859 DOI: 10.1016/j.neuropsychologia.2022.108277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 04/28/2022] [Accepted: 05/25/2022] [Indexed: 01/31/2023]
Abstract
How do life experiences impact cortical function? In people who are born blind, the "visual" cortices are recruited during nonvisual tasks, such as Braille reading and sound localization. Do visual cortices have a latent capacity to respond to nonvisual information throughout the lifespan? Alternatively, is there a sensitive period of heightened plasticity that makes visual cortex repurposing especially possible during childhood? To gain insight into these questions, we leveraged meaningful naturalistic auditory stimuli to simultaneously engage a broad range of cognitive domains and quantify cross-modal responses across congenitally blind (n = 22), adult-onset blind (vision loss >18 years-of-age, n = 14) and sighted (n = 22) individuals. During fMRI scanning, participants listened to two types of meaningful naturalistic auditory stimuli: excerpts from movies and a spoken narrative. As controls, participants heard the same narrative with the sentences shuffled and the narrative played backwards (i.e., meaningless sounds). We correlated the voxel-wise timecourses of different participants within condition and group. For all groups, all stimulus conditions induced synchrony in auditory cortex while only the narrative stimuli synchronized responses in higher-cognitive fronto-parietal and temporal regions. As previously reported, inter-subject synchrony in visual cortices was higher in congenitally blind than sighted blindfolded participants and this between-group difference was particularly pronounced for meaningful stimuli (movies and narrative). Critically, visual cortex synchrony was no higher in adult-onset blind than sighted blindfolded participants and did not increase with blindness duration. Sensitive period plasticity enables cross-modal repurposing in visual cortices.
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Affiliation(s)
- Elizabeth Musz
- Department of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, MD, USA
| | - Rita Loiotile
- Department of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, MD, USA
| | - Janice Chen
- Department of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, MD, USA
| | - Rhodri Cusack
- Trinity College Institute of Neuroscience, School of Psychology, Trinity College Dublin, Dublin, Ireland
| | - Marina Bedny
- Department of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, MD, USA
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Smith BJ, Smith ADAC, Dunn EC. Statistical Modeling of Sensitive Period Effects Using the Structured Life Course Modeling Approach (SLCMA). Curr Top Behav Neurosci 2022; 53:215-234. [PMID: 35460052 DOI: 10.1007/7854_2021_280] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Sensitive periods are times during development when life experiences can have a greater impact on outcomes than at other periods during the life course. However, a dearth of sophisticated methods for studying time-dependent exposure-outcome relationships means that sensitive periods are often overlooked in research studies in favor of more simplistic and easier-to-use hypotheses such as ever being exposed, or the effect of an exposure accumulated over time. The structured life course modeling approach (SLCMA; pronounced "slick-mah") allows researchers to model complex life course hypotheses, such as sensitive periods, to determine which hypothesis best explains the amount of variation between a repeated exposure and an outcome. The SLCMA makes use of the least angle regression (LARS) variable selection technique, a type of least absolute shrinkage and selection operator (LASSO) estimation procedure, to yield a parsimonious model for the exposure-outcome relationship of interest. The results of the LARS procedure are complemented with a post-selection inference method, called selective inference, which provides unbiased effect estimates, confidence intervals, and p-values for the final explanatory model. In this chapter, we provide a brief overview of the genesis of this sensitive period modeling approach and provide a didactic step-by-step user's guide to implement the SLCMA in sensitive- period research. R code to complete the SLCMA is available on our GitHub page at: https://github.com/thedunnlab/SLCMA-pipeline .
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Affiliation(s)
- Brooke J Smith
- Psychiatric and Neurodevelopmental Genetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Andrew D A C Smith
- Mathematics and Statistics Research Group, University of the West of England, Bristol, UK
| | - Erin C Dunn
- Psychiatric and Neurodevelopmental Genetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA. .,Department of Psychiatry, Harvard Medical School, Boston, MA, USA. .,Stanley Center for Psychiatric Research, The Broad Institute of Harvard and MIT, Cambridge, MA, USA. .,Harvard Center on the Developing Child, Harvard University, Cambridge, MA, USA.
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Yuan MY, Li YH, Chang JJ, Wang GF, Su PY. Suicidal and homicidal ideation among Chinese undergraduates with precollege school bullying experiences: Sensitive periods and exposure trajectories. Asian J Psychiatr 2022; 70:103047. [PMID: 35227986 DOI: 10.1016/j.ajp.2022.103047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 01/12/2022] [Accepted: 02/19/2022] [Indexed: 11/02/2022]
Affiliation(s)
- Meng-Yuan Yuan
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, China
| | - Yong-Han Li
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, China
| | - Jun-Jie Chang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, China
| | - Geng-Fu Wang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, Hefei, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Hefei, China
| | - Pu-Yu Su
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, Hefei, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Hefei, China.
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Vazquez Roman KN, Burggren WW. Metabolic responses to crude oil during early life stages reveal critical developmental windows in the zebrafish (Danio rerio). Comp Biochem Physiol C Toxicol Pharmacol 2022; 254:109274. [PMID: 35051628 DOI: 10.1016/j.cbpc.2022.109274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 12/07/2021] [Accepted: 01/12/2022] [Indexed: 11/03/2022]
Abstract
Morphological effects of crude oil exposure on early development in fishes have been well documented, but crude oil's metabolic effects and when in early development these effects might be most prominent remains unclear. We hypothesized that zebrafish (Danio rerio) exposed to crude oil as a high energy water accommodated fraction (HEWAF) would show increased routine oxygen consumption (ṀO2) and critical oxygen tension (PCrit) and this effect would be dependent upon day of HEWAF exposure, revealing critical windows of development for exposure effects. Zebrafish were exposed to 0%, 10%, 25%, 50% or 100% HEWAF for 24 h during one of the first six days post-fertilization (dpf). Survival rate, body mass, routine ṀO2, and PCrit were then measured at 7 dpf. Survival rate and especially body mass were both decreased based on both exposure concentration and day of crude oil exposure, with the largest decrease when HEWAF exposure occurred at 3 dpf. HEWAF effects on routine ṀO2 also differed depending upon exposure day. The largest effect occurred at 3 dpf, when ṀO2 increased significantly by ~60% from 10.1 ± 0.8 μmol O2/g/h compared to control group value of 6.3 ± 0.4 μmol O2/g/h. No significant effects of HEWAF exposure on any day were evident for PCrit (85 ± 4 mmHg in the control population). Overall, the main effects on body mass and ṀO2 measured at 7 dpf occurred when HEWAF exposures occurred at ~3 dpf. This critical window for metabolism in zebrafish larvae coincides with time of hatching, which may represent an especially vulnerable period in development.
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Affiliation(s)
- Karem N Vazquez Roman
- Developmental Integrative Biology Research Group, Department of Biological Sciences, University of North Texas, Denton, TX, USA.
| | - Warren W Burggren
- Developmental Integrative Biology Research Group, Department of Biological Sciences, University of North Texas, Denton, TX, USA
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Pavani F, Bottari D. Neuroplasticity following cochlear implants. Handb Clin Neurol 2022; 187:89-108. [PMID: 35964994 DOI: 10.1016/b978-0-12-823493-8.00016-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The auditory cortex of people with sensorineural hearing loss can be re-afferented using a cochlear implant (CI): a neural prosthesis that bypasses the damaged cells in the cochlea to directly stimulate the auditory nerve. Although CIs are the most successful neural prosthesis to date, some CI users still do not achieve satisfactory outcomes using these devices. To explain variability in outcomes, clinicians and researchers have increasingly focused their attention on neuroscientific investigations that examined how the auditory cortices respond to the electric signals that originate from the CI. This chapter provides an overview of the literature that examined how the auditory cortex changes its functional properties in response to inputs from the CI, in animal models and in humans. We focus first on the basic responses to sounds delivered through electrical hearing and, next, we examine the integrity of two fundamental aspects of the auditory system: tonotopy and processing of binaural cues. When addressing the effects of CIs in humans, we also consider speech-evoked responses. We conclude by discussing to what extent this neuroscientific literature can contribute to clinical practices and help to overcome variability in outcomes.
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Affiliation(s)
- Francesco Pavani
- Center for Mind/Brain Sciences - CIMeC, University of Trento, Rovereto, Italy.
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12
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Jimenez MP, Aris IM, Rifas-Shiman S, Young J, Tiemeier H, Hivert MF, Oken E, James P. Early life exposure to greenness and executive function and behavior: An application of inverse probability weighting of marginal structural models. Environ Pollut 2021; 291:118208. [PMID: 34740291 PMCID: PMC9208930 DOI: 10.1016/j.envpol.2021.118208] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 09/16/2021] [Accepted: 09/18/2021] [Indexed: 05/04/2023]
Abstract
Increasingly, studies suggest benefits of natural environments or greenness on children's health. However, little is known about cumulative exposure or windows of susceptibility to greenness exposure. Using inverse probability weighting of marginal structural models (IPW/MSM), we estimated effects of greenness exposure from birth through adolescence on executive function and behavior. We analyzed data of 908 children from Project Viva enrolled at birth in 1999-2002 and followed up until early adolescence. In mid-childhood (median 7.7 years) and early adolescence (13.1 years), executive function and behavior were assessed using the Behavior Rating Inventory of Executive Function and the Strengths and Difficulties Questionnaire (SDQ). Greenness was measured at birth, early childhood, mid-childhood, and early adolescence, using the Normalized Difference Vegetation Index. We used inverse probability weighting of marginal structural models to estimate effects of interventions that ensure maximum greenness exposure versus minimum through all intervals; and that ensure maximum greenness only in early childhood (vs. minimum through all intervals). Results of the effects of "maximum (vs. minimum) greenness at all timepoints" did not suggest associations with mid-childhood outcomes. Estimates of "maximum greenness only in early childhood (vs. minimum)" suggested a beneficial association with mid-childhood SDQ (-3.21, 99 %CI: -6.71,0.29 mother-rated; -4.02, 99 %CI: -7.87,-0.17 teacher-rated). No associations were observed with early adolescent outcomes. Our results for "persistent" maximum greenness exposure on behavior, were not conclusive with confidence intervals containing the null. The results for maximum greenness "only in early childhood" may shed light on sensitive periods of greenness exposure for behavior regulation.
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Affiliation(s)
- Marcia P Jimenez
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
| | - Izzuddin M Aris
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA.
| | - Sheryl Rifas-Shiman
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA.
| | - Jessica Young
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
| | - Henning Tiemeier
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
| | - Marie-France Hivert
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA; Diabetes Unit, Massachusetts General Hospital, Boston, MA, USA.
| | - Emily Oken
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA; Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
| | - Peter James
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
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13
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Abstract
From embryonic neuronal migration to adolescent circuit refinement, the immune system plays an essential role throughout central nervous system (CNS) development. Immune signaling molecules serve as a common language between the immune system and CNS, allowing them to work together to modulate brain function both in health and disease. As the resident CNS macrophage, microglia comprise the majority of immune cells in the brain. Much like their peripheral counterparts, microglia survey their environment for pathology, clean up debris, and propagate inflammatory responses when necessary. Beyond this, recent studies have highlighted that microglia perform a number of complex tasks during neural development, from directing neuronal and axonal positioning to pruning synapses, receptors, and even whole cells. In this chapter, we discuss this literature within the framework that immune activation during discrete windows of neural development can profoundly impact brain function long-term, and thus the risk of neurodevelopmental and neuropsychiatric disorders. In this chapter, we review three sensitive developmental periods - embryonic wiring, early postnatal synaptic pruning, and adolescent circuit refinement - in order to highlight the diversity of functions that microglia perform in building a brain. In reviewing this literature, it becomes obvious that timing matters, perhaps more so than the nature of the immune activation itself; largely conserved patterns of microglial response to diverse insults result in different functional impacts depending on the stage of brain maturation at the time of the challenge.
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Affiliation(s)
- Julia E Dziabis
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA.,Department of Neurobiology, Duke University, Durham, NC, USA
| | - Staci D Bilbo
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA. .,Department of Neurobiology, Duke University, Durham, NC, USA.
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14
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van Vugt FT, Hartmann K, Altenmüller E, Mohammadi B, Margulies DS. The impact of early musical training on striatal functional connectivity. Neuroimage 2021; 238:118251. [PMID: 34116147 DOI: 10.1016/j.neuroimage.2021.118251] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 05/05/2021] [Accepted: 06/07/2021] [Indexed: 12/26/2022] Open
Abstract
Evidence from language, visual and sensorimotor learning suggests that training early in life is more effective. The present work explores the hypothesis that learning during sensitive periods involves distinct brain networks in addition to those involved when learning later in life. Expert pianists were tested who started their musical training early (<7 years of age; n = 21) or late (n = 15), but were matched for total lifetime practice. Motor timing expertise was assessed using a musical scale playing task. Brain activity at rest was measured using fMRI and compared with a control group of nonmusicians (n = 17). Functional connectivity from seeds in the striatum revealed a striatal-cortical-sensorimotor network that was observed only in the early-onset group. In this network, higher connectivity correlated with greater motor timing expertise, which resulted from early/late group differences in motor timing expertise. By contrast, networks that differentiated musicians and nonmusicians, namely a striatal-occipital-frontal-cerebellar network in which connectivity was higher in musicians, tended to not show differences between early and late musicians and not be correlated with motor timing expertise. These results parcel musical sensorimotor neuroplasticity into a set of musicianship-related networks and a distinct set of predominantly early-onset networks. The findings lend support to the possibility that we can learn skills more easily early in development because during sensitive periods we recruit distinct brain networks that are no longer implicated in learning later in life.
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Affiliation(s)
- F T van Vugt
- Institute of Music Physiology and Musicians' Medicine, Emmichplatz 1, 30175 Hannover, Germany; Psychology Department, International Laboratory for Brain, Music, and Sound Research, University of Montreal, Canada; Psychology Department, McGill University, Montreal, Canada.
| | - K Hartmann
- Institute of Music Physiology and Musicians' Medicine, Emmichplatz 1, 30175 Hannover, Germany; Universitätsklinik für Neurochirurgie, Otto-von-Guericke-Universität Magdeburg, Leipziger Str. 44, 39120 Magdeburg, Germany
| | - E Altenmüller
- Institute of Music Physiology and Musicians' Medicine, Emmichplatz 1, 30175 Hannover, Germany
| | - B Mohammadi
- CNS-LAB, International Neuroscience Institute (INI), Rudolf-Pichlmayr-Str., 4, 30625 Hannover, Germany
| | - D S Margulies
- CNRS UMR 8002, Integrative Neuroscience and Cognition Center, University of Paris, Paris, France
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15
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Bottari D, Berto M. Three factors to characterize plastic potential transitions in the visual system. Neurosci Biobehav Rev 2021; 126:444-446. [PMID: 33857578 DOI: 10.1016/j.neubiorev.2021.03.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 03/08/2021] [Accepted: 03/19/2021] [Indexed: 11/28/2022]
Abstract
A comprehensive understanding of brain-environment interactions is elusive even at the sensory level as neural plasticity waxes and wanes across the lifespan. Temporary and permanent visual deprivations remain pivotal approaches for studying the degree of experience-dependent plasticity of sensory functions. Natural models and experimental manipulations of visual experiences have contributed to uncovering some of the guiding principles that characterize transitions of plastic potentials in the human visual system. The existing literature regarding the neural plasticity associated with visual systems has been extensively discussed by two recent reviews articles (Röder et al., 2020; Castaldi et al., 2020) which provided an overview of different models of study and methods of investigations, gathering insights on both developing and adult brains. Here, we propose a framework of three main factors to characterize how the driving forces shaping visual circuits mutate, both quantitatively and qualitatively, between early development and adulthood.
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Affiliation(s)
- Davide Bottari
- Molecular Mind Lab, IMT School for Advanced Studies Lucca, Italy.
| | - Martina Berto
- Molecular Mind Lab, IMT School for Advanced Studies Lucca, Italy
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16
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Rosa-Salva O, Mayer U, Versace E, Hébert M, Lemaire BS, Vallortigara G. Sensitive periods for social development: Interactions between predisposed and learned mechanisms. Cognition 2021; 213:104552. [PMID: 33402251 DOI: 10.1016/j.cognition.2020.104552] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 12/08/2020] [Accepted: 12/12/2020] [Indexed: 12/13/2022]
Abstract
We analysed research that makes use of precocial species as animal models to describe the interaction of predisposed mechanisms and environmental factors in early learning, in particular for the development of social cognition. We also highlight the role of sensitive periods in this interaction, focusing on domestic chicks as one of the main animal models for this field. In the first section of the review, we focus on the emergence of early predispositions to attend to social partners. These attentional biases appear before any learning experience about social stimuli. However, non-specific experiences occurring during sensitive periods of the early post-natal life determine the emergence of these predisposed mechanisms for the detection of social partners. Social predispositions have an important role for the development learning-based social cognitive functions, showing the interdependence of predisposed and learned mechanisms in shaping social development. In the second part of the review we concentrate on the reciprocal interactions between filial imprinting and spontaneous (not learned) social predispositions. Reciprocal influences between these two sets of mechanisms ensure that, in the natural environment, filial imprinting will target appropriate social objects. Neural and physiological mechanisms regulating the sensitive periods for the emergence of social predispositions and for filial imprinting learning are also described.
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Affiliation(s)
- Orsola Rosa-Salva
- Center for Mind/Brain Sciences, University of Trento, Piazza Manifattura 1, 38068 Rovereto, TN, Italy
| | - Uwe Mayer
- Center for Mind/Brain Sciences, University of Trento, Piazza Manifattura 1, 38068 Rovereto, TN, Italy
| | - Elisabetta Versace
- Center for Mind/Brain Sciences, University of Trento, Piazza Manifattura 1, 38068 Rovereto, TN, Italy; Department of Biological and Experimental Psychology, School of Biological and Chemical Sciences, Queen Mary University of London, 327 Mile End Road, London E1 4NS, United Kingdom
| | - Marie Hébert
- Center for Mind/Brain Sciences, University of Trento, Piazza Manifattura 1, 38068 Rovereto, TN, Italy
| | - Bastien S Lemaire
- Center for Mind/Brain Sciences, University of Trento, Piazza Manifattura 1, 38068 Rovereto, TN, Italy
| | - Giorgio Vallortigara
- Center for Mind/Brain Sciences, University of Trento, Piazza Manifattura 1, 38068 Rovereto, TN, Italy.
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Bellia F, Suarez A, D'Addario C, Pautassi RM, Fabio MC. Transient serotonin depletion at adolescence, but not at early infancy, reduced subsequent anxiety-like behavior and alcohol intake in female mice. Psychopharmacology (Berl) 2021; 238:215-25. [PMID: 33011817 DOI: 10.1007/s00213-020-05670-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 09/21/2020] [Indexed: 12/27/2022]
Abstract
RATIONALE Serotonin (5-HT) plays an important role in the organization of the central nervous system and in the development of social interaction deficits and psychiatric disorders, including anxiety, depression, and addiction disorders. Notably, disruption of the 5-HT system during sensitive periods of development exerts long-term consequences, including altered anxiety response and problematic use of alcohol. OBJECTIVE we analyzed, in mice, the effects of transient 5-HT depletion at infancy or adolescence on subsequent anxiety-like behavior and alcohol intake during adolescence. METHODS C57/BL6 male and female mice were administered a 5-HT synthesis inhibitor (PCPA; 4-chloro-DL-phenylalanine methyl ester hydrochloride) at infancy (postnatal days 14-16 [PD14-16]) or adolescence (PD40-42). Eleven (± 1) days after treatment, mice were assessed for ethanol intake in daily two-bottle choice tests and for anxiety response via the elevated plus maze. RESULTS Female, but not male, mice transiently depleted of 5-HT at adolescence (but not those depleted at the perinatal stage) exhibited a significant reduction in anxiety response, which was accompanied by a significant reduction on alcohol intake. CONCLUSION Transient 5-HT inhibition at adolescence may act, in females, as a protective factor for the emergence of anxiety disorders and problematic use of alcohol during adolescence.
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18
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Abstract
Recent work has transformed our ideas about the neural mechanisms, behavioral consequences and effective therapies for amblyopia. Since the 1700's, the clinical treatment for amblyopia has consisted of patching or penalizing the strong eye, to force the "lazy" amblyopic eye, to work. This treatment has generally been limited to infants and young children during a sensitive period of development. Over the last 20 years we have learned much about the nature and neural mechanisms underlying the loss of spatial and binocular vision in amblyopia, and that a degree of neural plasticity persists well beyond the sensitive period. Importantly, the last decade has seen a resurgence of research into new approaches to the treatment of amblyopia both in children and adults, which emphasize that monocular therapies may not be the most effective for the fundamentally binocular disorder that is amblyopia. These approaches include perceptual learning, video game play and binocular methods aimed at reducing inhibition of the amblyopic eye by the strong fellow eye, and enhancing binocular fusion and stereopsis. This review focuses on the what we've learned over the past 20 years or so, and will highlight both the successes of these new treatment approaches in labs around the world, and their failures in clinical trials. Reconciling these results raises important new questions that may help to focus future directions.
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Affiliation(s)
- Dennis M Levi
- University of California, Berkeley, School of Optometry & Helen Wills Neuroscience Institute, Berkeley, CA, USA.
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19
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Jimenez MP, Oken E, Gold DR, Luttmann-Gibson H, Requia WJ, Rifas-Shiman SL, Gingras V, Hivert MF, Rimm EB, James P. Early life exposure to green space and insulin resistance: An assessment from infancy to early adolescence. Environ Int 2020; 142:105849. [PMID: 32593049 PMCID: PMC7784302 DOI: 10.1016/j.envint.2020.105849] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 05/29/2020] [Accepted: 06/01/2020] [Indexed: 05/13/2023]
Abstract
BACKGROUND Recent studies suggest that greater exposure to natural vegetation, or "green space" is associated with lower diabetes risk, possibly through increasing physical activity. However, there is limited research on green space and insulin resistance in youth. We hypothesized greater green space at early-life sensitive time periods would be associated with lower insulin resistance in youth. METHODS We used data from Project Viva (N = 460), a pre-birth cohort study that recruited pregnant women in eastern Massachusetts, 1999-2002, and followed offspring into adolescence. We defined residential green space exposure at infancy (median age - 1.1 years), early childhood (3.2 years), mid-childhood (7.7 years), and early adolescence (12.8 years), using 30 m resolution Landsat satellite imagery to estimate the Normalized Difference Vegetation Index [NDVI]. Our main outcome was early adolescence estimated insulin resistance (HOMA-IR). We used multiple imputation to account for missing data and multiple linear regression models adjusted for age, sex, race/ethnicity, parental education, household income, and neighborhood median household income. RESULTS The highest green space tertile had the highest percentage of white participants (85%), college-educated mothers (87%) and fathers (85%), and households with income higher than US$70,000 (86%). Unadjusted models showed that participants living in the highest green space tertile at infancy had a 0.15 unit lower HOMA-IR (95% CI: -0.23, -0.06) in early adolescence, than those living in the lowest tertile. However, in adjusted models, we did not observe evidence of associations between green space from infancy to early adolescence and HOMA-IR in early adolescence, although some point estimates were in the hypothesized direction. For example, participants in the highest green space tertile in infancy had 0.03 units lower HOMA-IR (95%CI: -0.14, 0.08) than those living in the lowest tertile. CONCLUSIONS Exposure to green space at early life sensitive time periods was not associated with HOMA-IR in youth. Early-life longitudinal studies across diverse populations are needed to confirm or refute our results.
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Affiliation(s)
- Marcia P Jimenez
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA.
| | - Emily Oken
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA
| | - Diane R Gold
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Heike Luttmann-Gibson
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Weeberb J Requia
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Sheryl L Rifas-Shiman
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA
| | - Veronique Gingras
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA
| | - Marie-France Hivert
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA
| | - Eric B Rimm
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Peter James
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA; Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA
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20
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Jimenez MP, Wellenius GA, James P, Subramanian SV, Buka S, Eaton C, Gilman SE, Loucks EB. Associations of types of green space across the life-course with blood pressure and body mass index. Environ Res 2020; 185:109411. [PMID: 32240843 PMCID: PMC9993347 DOI: 10.1016/j.envres.2020.109411] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 03/17/2020] [Accepted: 03/18/2020] [Indexed: 05/17/2023]
Abstract
Green space has been associated with better health and well-being. However, most studies have been cross-sectional with limited long-term exposure data. Further, research is limited in what type of green space is beneficial for health. We conducted a longitudinal study to assess sensitive periods (birth, childhood or adulthood) of exposure to different types of green space in association with adult blood pressure and body mass index (BMI). Using longitudinal data from the New England Family Study (1960-2000) and multilevel regression analysis, we examined associations between time-varying markers of residential exposure to green space, and adult BMI, systolic (SBP) and diastolic blood pressure (DBP) (N = 517). We created three exposure metrics: distance, average area, and green space count in the neighborhood throughout the life-course. In adjusted models, living one mile farther away from a green space at birth was associated with a 5.6 mmHg higher adult SBP (95%CI: 0.7, 10.5), and 3.5 mmHg higher DBP (95%CI: 0.3, 6.8). One more green space in the neighborhood at birth was also associated with lower DBP (-0.2 mmHg, 95%CI: -0.4, -0.02) in adulthood. Finally, average area of green space was not associated with SBP, DBP nor BMI. Analysis by type of green space suggested that parks may be more relevant than playgrounds, cemeteries or golf courses. Our study suggests that the perinatal period may be a critical time-period where living closer to green spaces may lower hypertension risk in adulthood, but not obesity.
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Affiliation(s)
- Marcia P Jimenez
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA.
| | - Gregory A Wellenius
- Department of Epidemiology, Brown University School of Public Health, Providence, RI, USA
| | - Peter James
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - S V Subramanian
- Department of Social and Behavioral Sciences, Harvard T.H, Chan School of Public Health, USA
| | - Stephen Buka
- Department of Epidemiology, Brown University School of Public Health, Providence, RI, USA
| | - Charles Eaton
- Department of Epidemiology, Brown University School of Public Health, Providence, RI, USA; Department of Family Medicine, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Stephen E Gilman
- Social and Behavioral Sciences Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD. Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Eric B Loucks
- Department of Epidemiology, Brown University School of Public Health, Providence, RI, USA
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21
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Wang GF, Han AZ, Zhang GB, Xu N, Xie GD, Chen LR, Yuan MY, Su PY. Sensitive periods for the effect of bullying victimization on suicidal behaviors among university students in China: The roles of timing and chronicity. J Affect Disord 2020; 268:12-19. [PMID: 32158002 DOI: 10.1016/j.jad.2020.02.049] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 02/13/2020] [Accepted: 02/27/2020] [Indexed: 01/16/2023]
Abstract
OBJECTIVE To examine whether timing and chronicity of bullying victimization (BV) play a significant role in linking exposure to BV to suicidal behaviors in university students. METHODS A multistage stratification sampling method was used to select a sample of 4034 university students (18-23 years, mean age 20.38±1.35 years, 41.9% female). We used latent class analysis and developmental-stage-based characterizations of BV timing and chronicity to explore the sensitive periods for the effect of BV on suicidal behaviors. RESULTS The prevalence rates of suicidal ideation, plans and attempts among our study participants were 9.9%, 3.0% and 1.3%, respectively. BV during primary school (OR = 2.12, 95% CI: 1.55-2.90) and secondary school (OR = 2.65, 95% CI: 1.80-3.90) was associated with suicidal ideation among university students. We identified four classes of life-course BV experiences (low BV, 73.8%; moderate BV, 18.6%; secondary school BV, 4.4% and persistent BV, 3.2%). Persistent BV was associated with 2.50 times (95% CI: 1.56-3.98), 2.98 times (95% CI: 1.48-6.02), and 6.13 times (95% CI: 2.48-15.14) higher risk of suicide ideation, plans, and attempts, respectively. Both moderate BV (OR = 1.75, 95% CI: 1.35-2.26) and secondary school BV (OR=2.01, 95% CI: 1.29-3.12) were positively correlated with suicidal ideation. Furthermore, there was a dose-response relationship between the number of periods of BV and suicidal behaviors. LIMITATIONS This study was a cross-sectional study based on self-reported measures, especially BV experiences in each school stage. CONCLUSIONS This study identifies sensitive periods for the effect of BV on suicidal behaviors among university students in China.
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Affiliation(s)
- Geng-Fu Wang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No.81 Meishan Road, Hefei 230032, Anhui, China
| | - A-Zhu Han
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No.81 Meishan Road, Hefei 230032, Anhui, China
| | - Guo-Bao Zhang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No.81 Meishan Road, Hefei 230032, Anhui, China
| | - Nuo Xu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No.81 Meishan Road, Hefei 230032, Anhui, China
| | - Guo-Die Xie
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No.81 Meishan Road, Hefei 230032, Anhui, China
| | - Li-Ru Chen
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No.81 Meishan Road, Hefei 230032, Anhui, China
| | - Meng-Yuan Yuan
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No.81 Meishan Road, Hefei 230032, Anhui, China
| | - Pu-Yu Su
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No.81 Meishan Road, Hefei 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei 230032, Anhui, China; NHC Key Laboratory of study on abnormal gametes and reproductive tract, No 81 Meishan Road, Hefei 230032, Anhui, China.
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22
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Marini S, Davis KA, Soare TW, Zhu Y, Suderman MJ, Simpkin AJ, Smith ADAC, Wolf EJ, Relton CL, Dunn EC. Adversity exposure during sensitive periods predicts accelerated epigenetic aging in children. Psychoneuroendocrinology 2020; 113:104484. [PMID: 31918390 PMCID: PMC7832214 DOI: 10.1016/j.psyneuen.2019.104484] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [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: 05/22/2019] [Revised: 10/11/2019] [Accepted: 10/11/2019] [Indexed: 12/30/2022]
Abstract
OBJECTIVES Exposure to adversity has been linked to accelerated biological aging, which in turn has been shown to predict numerous physical and mental health problems. In recent years, measures of DNA methylation-based epigenetic age--known as "epigenetic clocks"--have been used to estimate accelerated epigenetic aging. Although a small number of studies have found an effect of adversity exposure on epigenetic age in children, none have investigated if there are "sensitive periods" when adversity is most impactful. METHODS Using data from the Avon Longitudinal Study of Parents and Children (ALSPAC; n = 973), we tested the prospective association between repeated measures of childhood exposure to seven types of adversity on epigenetic age assessed at age 7.5 using the Horvath and Hannum epigenetic clocks. With a Least Angle Regression variable selection procedure, we evaluated potential sensitive period effects. RESULTS We found that exposure to abuse, financial hardship, or neighborhood disadvantage during sensitive periods in early and middle childhood best explained variability in the deviation of Hannum-based epigenetic age from chronological age, even after considering the role of adversity accumulation and recency. Secondary sex-stratified analyses identified particularly strong sensitive period effects. These effects were undetected in analyses comparing children "exposed" versus "unexposed" to adversity. We did not identify any associations between adversity and epigenetic age using the Horvath epigenetic clock. CONCLUSIONS Our results suggest that adversity may alter methylation processes in ways that either directly or indirectly perturb normal cellular aging and that these effects may be heightened during specific life stages.
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Affiliation(s)
- Sandro Marini
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - Kathryn A Davis
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - Thomas W Soare
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA; Stanley Center for Psychiatric Research, The Broad Institute of Harvard and MIT, Cambridge, MA, 02142, USA; Department of Psychiatry, Harvard Medical School, Boston, MA, 02115, USA
| | - Yiwen Zhu
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - Matthew J Suderman
- MRC Integrative Epidemiology Unit, School of Social and Community Medicine, University of Bristol, Bristol, BSB 1TH, UK
| | - Andrew J Simpkin
- MRC Integrative Epidemiology Unit, School of Social and Community Medicine, University of Bristol, Bristol, BSB 1TH, UK; School of Mathematics, Statistics and Applied Mathematics, National University of Ireland, Galway, H91TK33, Ireland
| | - Andrew D A C Smith
- Applied Statistics Group, University of the West of England, Bristol, BS16 1QY, UK
| | - Erika J Wolf
- National Center for PTSD at VA Boston Healthcare System, Boston, MA, 02130, USA; Boston University School of Medicine, Department of Psychiatry, Boston, MA, 02118, USA
| | - Caroline L Relton
- MRC Integrative Epidemiology Unit, School of Social and Community Medicine, University of Bristol, Bristol, BSB 1TH, UK; Institute of Genetic Medicine, University of Newcastle, Newcastle upon Tyne, NE1 3BZ, UK
| | - Erin C Dunn
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA; Stanley Center for Psychiatric Research, The Broad Institute of Harvard and MIT, Cambridge, MA, 02142, USA; Department of Psychiatry, Harvard Medical School, Boston, MA, 02115, USA; McCance Center for Brain Health at Massachusetts General Hospital, Boston, MA, 02114, USA.
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Abstract
Human brain development is optimized to learn from environmental cues. The protracted development of the cortex and its connections with subcortical targets has been argued to permit more opportunity for acquiring complex behaviors. This review uses the example of amygdala-medial prefrontal cortex circuitry development to illustrate a principle of human development-namely, that the extension of the brain's developmental timeline allows for the (species-expected) collaboration between child and parent in co-construction of the human brain. The neurobiology underlying affective learning capitalizes on this protracted timeline to develop a rich affective repertoire in adulthood. Humans are afforded this luxuriously slow development in part by the extended period of caregiving provided by parents, and parents aid in scaffolding the process of maturation during childhood. Just as adequate caregiving is a potent effector of brain development, so is adverse caregiving, which is the largest environmental risk factor for adult mental illness. There are large individual differences in neurobiological outcomes following caregiving adversity, indicating that these pathways are probabilistic, rather than deterministic, and prolonged plasticity in human brain development may also allow for subsequent amelioration by positive experiences. The extant research indicates that the development of mental health cannot be considered without consideration of children in the context of their families.
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Affiliation(s)
- Nim Tottenham
- Department of Psychology, Columbia University, New York, New York.
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24
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Pant R, Kanjlia S, Bedny M. A sensitive period in the neural phenotype of language in blind individuals. Dev Cogn Neurosci 2020; 41:100744. [PMID: 31999565 PMCID: PMC6994632 DOI: 10.1016/j.dcn.2019.100744] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 11/15/2019] [Accepted: 11/29/2019] [Indexed: 01/18/2023] Open
Abstract
Congenital blindness modifies the neural basis of language: "visual" cortices respond to linguistic information, and fronto-temporal language networks are less left-lateralized. We tested the hypothesis that this plasticity follows a sensitive period by comparing the neural basis of sentence processing between adult-onset blind (AB, n = 16), congenitally blind (CB, n = 22) and blindfolded sighted adults (n = 18). In Experiment 1, participants made semantic judgments for spoken sentences and, in a control condition, solved math equations. In Experiment 2, participants answered "who did what to whom" yes/no questions for grammatically complex (with syntactic movement) and simpler sentences. In a control condition, participants performed a memory task with non-words. In both experiments, visual cortices of CB and AB but not sighted participants responded more to sentences than control conditions, but the effect was much larger in the CB group. Only the "visual" cortex of CB participants responded to grammatical complexity. Unlike the CB group, the AB group showed no reduction in left-lateralization of fronto-temporal language network, relative to the sighted. These results suggest that congenital blindness modifies the neural basis of language differently from adult-onset blindness, consistent with a developmental sensitive period hypothesis.
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Affiliation(s)
- Rashi Pant
- Department of Psychological and Brain Sciences, Johns Hopkins University, USA; Biological Psychology and Neuropsychology, University of Hamburg, Germany.
| | - Shipra Kanjlia
- Department of Psychological and Brain Sciences, Johns Hopkins University, USA
| | - Marina Bedny
- Department of Psychological and Brain Sciences, Johns Hopkins University, USA
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25
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Abstract
In the past decade, there has been monumental progress in our understanding of the neurobiological basis of sensitive periods. Little is known, however, about the evolution of sensitive periods. Recent studies have started to address this gap. Biologists have built mathematical models exploring the environmental conditions in which sensitive periods are likely to evolve. These models investigate how mechanisms of plasticity can respond optimally to experience during an individual's lifetime. This paper discusses the central tenets, insights, and predictions of these models, in relation to empirical work on humans and other animals. We also discuss which future models are needed to improve the bridge between theory and data, advancing their synergy. Our paper is written in an accessible manner and for a broad audience. We hope our work will contribute to recently emerging connections between the fields of developmental neuroscience and evolutionary biology.
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Affiliation(s)
| | - Nicole Walasek
- Behavioural Science Institute, Radboud University, the Netherlands
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26
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Abstract
This chapter focuses on new concepts and new paradigms shedding light on the complex issue of socioenvironmental factors that affect the psychologic development of the child. Longitudinal controlled studies have sorted out "what leads to what under which circumstances," adding to the heuristic value of the addition of risks and of the Bronfenbrenner's ecologic model of development and disentangling the socioeconomic status (SES) from poverty. We emphasize the importance of taking attachment styles and attachment disorganization into account for a better understanding of both normal development and early psychopathology. Intervention studies demonstrate the real life effect of the gene-environment interaction with or without epigenetic processes. Thus, this chapter deals with paradigmatic situations as ADS, Prader-Willi, or prematurity as they allow us to learn more about early development and epigenetic influences.
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27
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Abstract
Adverse experiences during childhood can have long-lasting impacts on physical and mental health. At the heart of most theories of how these effects are transduced into health impacts is the activity of stress-mediating systems, most notably the hypothalamic-pituitary-adrenocortical (HPA) axis. Here we review the anatomy and physiology of the axis, models of stress and development, the development of the axis prenatally through adolescence, the role of experience and sensitive periods in shaping its regulation, the social regulation of the axis at different points in development, and finally conclude with suggestions for future research. We conclude that it is clear that early adversity sculpts the stress system, but we do not understand which dimensions have the most impact and at what points in early development. It is equally clear that secure attachment relationships buffer the developing stress system; however, the mechanisms of social buffering and how these may change with development are not yet clear. Another critical issue that is not understood is when and for whom adversity will result in hypo- vs hyperactivity of stress-mediating systems. These and other issues are important for advancing our understanding of how early adversity "gets under the skin" and shapes human physical and mental health.
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Affiliation(s)
- Melissa L Engel
- Department of Psychology, Emory University, Atlanta, GA, United States
| | - Megan R Gunnar
- Institute of Child Development, University of Minnesota, Minneapolis, MN, United States.
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28
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Dunn EC, Soare TW, Zhu Y, Simpkin AJ, Suderman MJ, Klengel T, Smith ADAC, Ressler KJ, Relton CL. Sensitive Periods for the Effect of Childhood Adversity on DNA Methylation: Results From a Prospective, Longitudinal Study. Biol Psychiatry 2019; 85:838-849. [PMID: 30905381 PMCID: PMC6552666 DOI: 10.1016/j.biopsych.2018.12.023] [Citation(s) in RCA: 137] [Impact Index Per Article: 27.4] [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: 02/28/2018] [Revised: 12/04/2018] [Accepted: 12/16/2018] [Indexed: 12/21/2022]
Abstract
BACKGROUND Exposure to early-life adversity is known to predict DNA methylation (DNAm) patterns that may be related to psychiatric risk. However, few studies have investigated whether adversity has time-dependent effects based on the age at exposure. METHODS Using a two-stage structured life course modeling approach, we tested the hypothesis that there are sensitive periods when adversity induces greater DNAm changes. We tested this hypothesis in relation to two alternatives: an accumulation hypothesis, in which the effect of adversity increases with the number of occasions exposed, regardless of timing; and a recency model, in which the effect of adversity is stronger for more proximal events. Data came from the Accessible Resource for Integrated Epigenomic Studies, a subsample of mother-child pairs from the Avon Longitudinal Study of Parents and Children (n = 691-774). RESULTS After covariate adjustment and multiple testing correction, we identified 38 CpG sites that were differentially methylated at 7 years of age following exposure to adversity. Most loci (n = 35) were predicted by the timing of adversity, namely exposures before 3 years of age. Neither the accumulation nor recency of the adversity explained considerable variability in DNAm. A standard epigenome-wide association study of lifetime exposure (vs. no exposure) failed to detect these associations. CONCLUSIONS The developmental timing of adversity explains more variability in DNAm than the accumulation or recency of exposure. Very early childhood appears to be a sensitive period when exposure to adversity predicts differential DNAm patterns. Classification of individuals as exposed versus unexposed to early-life adversity may dilute observed effects.
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Affiliation(s)
- Erin C Dunn
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, Massachusetts; Department of Psychiatry, Harvard Medical School, Boston, Massachusetts; Stanley Center for Psychiatric Research, The Broad Institute of Harvard University and Massachusetts Institute of Technology, Cambridge, Massachusetts.
| | - Thomas W Soare
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, Massachusetts; Department of Psychiatry, Harvard Medical School, Boston, Massachusetts; Stanley Center for Psychiatric Research, The Broad Institute of Harvard University and Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Yiwen Zhu
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Andrew J Simpkin
- Medical Research Council Integrative Epidemiology Unit, School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom
| | - Matthew J Suderman
- Medical Research Council Integrative Epidemiology Unit, School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom
| | - Torsten Klengel
- Department of Psychiatry, Harvard Medical School, Boston, Massachusetts; Department of Psychiatry, McLean Hospital, Harvard Medical School, Belmont, Massachusetts; Department of Psychiatry and Psychotherapy, University Medical Center Gottingen, Germany
| | - Andrew D A C Smith
- Applied Statistics Group, University of the West of England, Bristol, United Kingdom
| | - Kerry J Ressler
- Department of Psychiatry, Harvard Medical School, Boston, Massachusetts; Department of Psychiatry, McLean Hospital, Harvard Medical School, Belmont, Massachusetts
| | - Caroline L Relton
- Medical Research Council Integrative Epidemiology Unit, School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom; Institute of Genetic Medicine, University of Newcastle, Newcastle upon Tyne, United Kingdom
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29
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Stevens JS, van Rooij SJH, Jovanovic T. Developmental Contributors to Trauma Response: The Importance of Sensitive Periods, Early Environment, and Sex Differences. Curr Top Behav Neurosci 2019; 38:1-22. [PMID: 27830573 PMCID: PMC5425320 DOI: 10.1007/7854_2016_38] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This review considers early factors that interact with development to contribute to later trauma responses, including developmental sensitive periods, the effects of early environment, and the emergence of sex differences. We also describe development of neural substrates that have been associated with posttraumatic stress disorder and specifically focus on fear behavior and circuitry. Emerging evidence suggests that there may be developmental shifts around age 10 in these underlying circuits that may contribute to vulnerability. We also discuss age-related changes in the importance of caregiver availability as positive buffering factors. Hormonal changes later in development with onset during puberty appear to further shape development trajectories toward risk or resilience. We highlight these recent findings as well as the great need for further longitudinal research from middle childhood through early adulthood.
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Affiliation(s)
- Jennifer S Stevens
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, 49 Jesse Hill Jr Dr, Suite 331, Atlanta, GA, 30303, USA
| | - Sanne J H van Rooij
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, 49 Jesse Hill Jr Dr, Suite 331, Atlanta, GA, 30303, USA
| | - Tanja Jovanovic
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, 49 Jesse Hill Jr Dr, Suite 331, Atlanta, GA, 30303, USA.
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30
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Martin CL, Kane JB, Miles GL, Aiello AE, Harris KM. Neighborhood disadvantage across the transition from adolescence to adulthood and risk of metabolic syndrome. Health Place 2019; 57:131-138. [PMID: 31035097 PMCID: PMC6589127 DOI: 10.1016/j.healthplace.2019.03.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 09/27/2018] [Revised: 02/20/2019] [Accepted: 03/13/2019] [Indexed: 02/05/2023]
Abstract
This study investigates the association between neighborhood disadvantage from adolescence to young adulthood and metabolic syndrome using a life course epidemiology framework. Data from the United States-based National Longitudinal Study of Adolescent to Adult Health (n = 9500) and a structural equation modeling approach were used to test neighborhood disadvantage across adolescence, emerging adulthood, and young adulthood in relation to metabolic syndrome. Adolescent neighborhood disadvantage was directly associated with metabolic syndrome in young adulthood. Evidence supporting an indirect association between adolescent neighborhood disadvantage and adult metabolic syndrome was not supported. Efforts to improve cardiometabolic health may benefit from strategies earlier in life.
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Affiliation(s)
- Chantel L Martin
- Department of Epidemiology, University of North Carolina Chapel Hill, Chapel Hill, NC, USA; Carolina Population Center, University of North Carolina Chapel Hill, Chapel Hill, NC, USA.
| | - Jennifer B Kane
- Carolina Population Center, University of North Carolina Chapel Hill, Chapel Hill, NC, USA; Department of Sociology, University of California, Irvine, Irvine, CA, USA
| | - Gandarvaka L Miles
- Department of Epidemiology, University of North Carolina Chapel Hill, Chapel Hill, NC, USA
| | - Allison E Aiello
- Department of Epidemiology, University of North Carolina Chapel Hill, Chapel Hill, NC, USA; Carolina Population Center, University of North Carolina Chapel Hill, Chapel Hill, NC, USA
| | - Kathleen Mullan Harris
- Carolina Population Center, University of North Carolina Chapel Hill, Chapel Hill, NC, USA; Department of Sociology, University of North Carolina Chapel Hill, Chapel Hill, NC, USA
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31
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Jivraj S, Norman P, Nicholas O, Murray ET. Are there sensitive neighbourhood effect periods during the life course on midlife health and wellbeing? Health Place 2019; 57:147-156. [PMID: 31051326 DOI: 10.1016/j.healthplace.2019.03.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 03/25/2019] [Accepted: 03/29/2019] [Indexed: 11/25/2022]
Abstract
Since the turn of the century there has been an explosion in the number of epidemiological studies that have analysed neighbourhood effects on health and wellbeing. The vast majority of these studies are cross-sectional in nature and assume that a contemporaneous place of residence captures a meaningful neighbourhood effect. Over the same time frame, social epidemiology has focussed increasingly on life course effects. This paper aims to bring these two areas of study together and tests whether there a certain ages during the life course when neighbourhoods are more important for our health and wellbeing than others. We use two British birth cohort studies (1958 National Child Development Study and British Cohort Study 1970) each comprising approximately 6,000 sample members at midlife linked to historic census measures used to derived Townsend neighbourhood deprivation scores over the life course. We find little evidence to support our hypothesis that adolescence is a key period of neighbourhood effect, rather we find late-early-adulthood neighbourhood deprivation and midlife neighbourhood deprivation are more strongly related to mid-life health and wellbeing. We are not able to conclude whether these effects are causal and encourage further investigation of selection mechanisms into neighbourhoods and mediation throughout the life course using our newly created dataset.
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Affiliation(s)
- Stephen Jivraj
- UCL Institute of Epidemiology and Health Care, London, UK.
| | - Paul Norman
- School of Geography, University of Leeds, Leeds, UK
| | | | - Emily T Murray
- UCL Institute of Epidemiology and Health Care, London, UK
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32
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Resch C, Anderson VA, Beauchamp MH, Crossley L, Hearps SJC, van Heugten CM, Hurks PPM, Ryan NP, Catroppa C. Age-dependent differences in the impact of paediatric traumatic brain injury on executive functions: A prospective study using susceptibility-weighted imaging. Neuropsychologia 2018; 124:236-245. [PMID: 30528585 DOI: 10.1016/j.neuropsychologia.2018.12.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 10/12/2018] [Accepted: 12/05/2018] [Indexed: 12/17/2022]
Abstract
Childhood and adolescence represent sensitive developmental periods for brain networks implicated in a range of complex skills, including executive functions (EF; inhibitory control, working memory, and cognitive flexibility). As a consequence, these skills may be particularly vulnerable to injuries sustained during these sensitive developmental periods. The present study investigated 1) whether age at injury differentially affects EF 6 months and 2 years after TBI in children aged 5-15 years, and 2) whether the association between brain lesions and EF depend on age at injury. Children with TBI (n = 105) were categorized into four age-at-injury groups based on previous studies and proposed timing of cerebral maturational spurts: early childhood (5-6 years, n = 14), middle childhood (7-9 years, n = 24), late childhood (10-12 years, n = 52), and adolescence (13-15 years, n = 15). EF were assessed with performance-based tasks and a parent-report of everyday EF. TBI patients' EF scores 6 months and 2 years post-injury were compared to those of typically developing (TD) controls (n = 42). Brain lesions were identified using susceptibility weighted imaging (SWI). Results indicated that inhibitory control performance 2 years post-injury was differentially affected by the impact of TBI depending on age at injury. Follow-up analyses did not reveal significant differences within the age groups, preventing drawing strong conclusions regarding the contribution of age at injury to EF outcome after TBI. Tentatively, large effect sizes suggest that vulnerability is most apparent in early childhood and adolescence. Everyday inhibitory control behaviour was worse for children with TBI than TD children across childhood and adolescence at the 2-year assessment. There was no evidence for impairment in working memory or cognitive flexibility after TBI at the group level. Given small group sizes, findings from analyses into correlations between EF and SWI lesions should be interpreted with caution. Extent, number and volume of brain lesions correlated with adolescent everyday EF behaviour 6 months post-injury. Taken together, the results emphasize the need for long-term follow-up after paediatric TBI during sensitive developmental periods given negative outcomes 2-year post injury. Inhibitory control seems to be particular vulnerable to the impact of TBI. Findings of associations between EF and SWI lesions need to be replicated with larger samples.
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Affiliation(s)
- Christine Resch
- Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, PO Box 616, 6200 MD, Maastricht, the Netherlands; Australian Centre for Child Neuropsychological Studies, Murdoch Children's Research Institute, Royal Children's Hospital, 50 Flemington Road, Parkville, 3052 Melbourne, Victoria, Australia.
| | - Vicki A Anderson
- Australian Centre for Child Neuropsychological Studies, Murdoch Children's Research Institute, Royal Children's Hospital, 50 Flemington Road, Parkville, 3052 Melbourne, Victoria, Australia; Department of Psychology, Royal Children's Hospital, Melbourne, Australia; Melbourne School of Psychological Sciences, University of Melbourne, Melbourne, Australia.
| | - Miriam H Beauchamp
- Department of Psychology, University of Montreal, Pavillon Marie-Victorin, Department de Psychologie, C.P. 6128 Succursale Centre-Ville, Montreal, Quebec, Canada H3C 317; Ste-Justine Research Center, Montreal, Quebec, Canada.
| | - Louise Crossley
- Australian Centre for Child Neuropsychological Studies, Murdoch Children's Research Institute, Royal Children's Hospital, 50 Flemington Road, Parkville, 3052 Melbourne, Victoria, Australia.
| | - Stephen J C Hearps
- Australian Centre for Child Neuropsychological Studies, Murdoch Children's Research Institute, Royal Children's Hospital, 50 Flemington Road, Parkville, 3052 Melbourne, Victoria, Australia.
| | - Caroline M van Heugten
- Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, PO Box 616, 6200 MD, Maastricht, the Netherlands; School for Mental Health and Neuroscience, Faculty of Health, Medicine and Life Sciences, Maastricht University Medical Center, PO Box 616, 6200 MD, Maastricht, the Netherlands.
| | - Petra P M Hurks
- Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, PO Box 616, 6200 MD, Maastricht, the Netherlands.
| | - Nicholas P Ryan
- Australian Centre for Child Neuropsychological Studies, Murdoch Children's Research Institute, Royal Children's Hospital, 50 Flemington Road, Parkville, 3052 Melbourne, Victoria, Australia; Cognitive Neuroscience Unit, School of Psychology, Deakin University, Geelong, Victoria, Australia.
| | - Cathy Catroppa
- Australian Centre for Child Neuropsychological Studies, Murdoch Children's Research Institute, Royal Children's Hospital, 50 Flemington Road, Parkville, 3052 Melbourne, Victoria, Australia; Department of Psychology, Royal Children's Hospital, Melbourne, Australia; Melbourne School of Psychological Sciences, University of Melbourne, Melbourne, Australia.
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33
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Teicher MH. Childhood trauma and the enduring consequences of forcibly separating children from parents at the United States border. BMC Med 2018; 16:146. [PMID: 30131056 PMCID: PMC6103973 DOI: 10.1186/s12916-018-1147-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 08/06/2018] [Indexed: 12/13/2022] Open
Abstract
Forcible separation and detention of children from parents seeking asylum in the United States has been decried as immoral and halted by court order. Babies and children have been separated and transported to facilities sometimes many miles away. Limited data on forced detention of unaccompanied minors reveal high incidence of posttraumatic stress, anxiety disorders, depression, aggression, and suicidal ideation. These consequences will be magnified in youths forcibly separated from their parents, particularly younger children who depend on attachment bonds for self-regulation and resilience. Studies exploring the neuropsychiatric consequences of traumatic stress have revealed consistent effects of early life stress on brain structure, function and connectivity, and the identification of sensitive periods, which occur throughout childhood when specific regions and pathways are strongly influenced by adversity. Studies of epigenetics, inflammation and allostatic load are similarly enhancing our awareness of the molecular mechanisms underpinning the long-term consequences of traumatic stress. We must consider effects on the developing brain, mind and body to appreciate the long-term consequences of policies that force separation and detention of children.
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Affiliation(s)
- Martin H Teicher
- Department of Psychiatry, Harvard Medical School, Boston, USA. .,Developmental Biopsychiatry Research Program, McLean Hospital, 115 Mill Street, Belmont, MA, 02478, USA.
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34
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Dunn EC, Crawford KM, Soare TW, Button KS, Raffeld MR, Smith AD, Penton-Voak IS, Munafò MR. Exposure to childhood adversity and deficits in emotion recognition: results from a large, population-based sample. J Child Psychol Psychiatry 2018; 59:845-854. [PMID: 29512866 PMCID: PMC6041167 DOI: 10.1111/jcpp.12881] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [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] [Accepted: 01/04/2018] [Indexed: 01/12/2023]
Abstract
BACKGROUND Emotion recognition skills are essential for social communication. Deficits in these skills have been implicated in mental disorders. Prior studies of clinical and high-risk samples have consistently shown that children exposed to adversity are more likely than their unexposed peers to have emotion recognition skills deficits. However, only one population-based study has examined this association. METHODS We analyzed data from children participating in the Avon Longitudinal Study of Parents and Children, a prospective birth cohort (n = 6,506). We examined the association between eight adversities, assessed repeatedly from birth to age 8 (caregiver physical or emotional abuse; sexual or physical abuse; maternal psychopathology; one adult in the household; family instability; financial stress; parent legal problems; neighborhood disadvantage) and the ability to recognize facial displays of emotion measured using the faces subtest of the Diagnostic Assessment of Non-Verbal Accuracy (DANVA) at age 8.5 years. In addition to examining the role of exposure (vs. nonexposure) to each type of adversity, we also evaluated the role of the timing, duration, and recency of each adversity using a Least Angle Regression variable selection procedure. RESULTS Over three-quarters of the sample experienced at least one adversity. We found no evidence to support an association between emotion recognition deficits and previous exposure to adversity, either in terms of total lifetime exposure, timing, duration, or recency, or when stratifying by sex. CONCLUSIONS Results from the largest population-based sample suggest that even extreme forms of adversity are unrelated to emotion recognition deficits as measured by the DANVA, suggesting the possible immutability of emotion recognition in the general population. These findings emphasize the importance of population-based studies to generate generalizable results.
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Affiliation(s)
- Erin C. Dunn
- Psychiatric and Neurodevelopmental Genetics Unit, Massachusetts General Hospital, Boston, MA, United States of America
- Department of Psychiatry, Harvard Medical School, Boston, MA, United States of America
- Stanley Center for Psychiatric Research, The Broad Institute of Harvard and MIT, Cambridge, MA, United States of America
- Center on the Developing Child at Harvard University, Cambridge, MA, United States of America
| | - Katherine M. Crawford
- Psychiatric and Neurodevelopmental Genetics Unit, Massachusetts General Hospital, Boston, MA, United States of America
| | - Thomas W. Soare
- Psychiatric and Neurodevelopmental Genetics Unit, Massachusetts General Hospital, Boston, MA, United States of America
- Department of Psychiatry, Harvard Medical School, Boston, MA, United States of America
- Stanley Center for Psychiatric Research, The Broad Institute of Harvard and MIT, Cambridge, MA, United States of America
| | | | - Miriam R. Raffeld
- Psychiatric and Neurodevelopmental Genetics Unit, Massachusetts General Hospital, Boston, MA, United States of America
| | - Andrew D.A.C. Smith
- Applied Statistics Group, University of the West of England, Bristol, United Kingdom
| | - Ian S. Penton-Voak
- School of Experimental Psychology, University of Bristol, Bristol, United Kingdom
| | - Marcus R. Munafò
- School of Experimental Psychology, University of Bristol, Bristol, United Kingdom
- Medical Research Council Integrative Epidemiology Unit (MRC IEU) at the University of Bristol, Bristol, United Kingdom
- UK Centre for Tobacco and Alcohol Studies, University of Bristol, Bristol, United Kingdom
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35
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Abstract
There are many levels of disorder in amblyopic vision, from basic acuity and contrast sensitivity loss to abnormal binocular vision and global perception of motion and form. Amblyopia treatment via patching to restore acuity often leaves other aspects of vision deficient. The source for these additional deficits is unclear. Neural correlates of poor binocular function and acuity loss are found in V1 and V2. However, they are generally not sufficient to account for behaviorally measured vision loss. This review summarizes the known cortical correlates of visual deficits found in association with amblyopia, particularly those relevant to binocular vision and higher-order visual processing, in striate and extrastriate cortex. Recommendations for future research address open questions on the role of suppression and oculomotor abnormalities in amblyopic vision, and underexplored mechanisms such as top-down influences on information transmission in the amblyopic brain.
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Dunn EC, Nishimi K, Gomez SH, Lott AP, Bradley B. Developmental timing of trauma exposure and emotion dysregulation in adulthood: Are there sensitive periods when trauma is most harmful? J Affect Disord 2018; 227:869-877. [PMID: 29254068 PMCID: PMC5805641 DOI: 10.1016/j.jad.2017.10.045] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 10/18/2017] [Accepted: 10/27/2017] [Indexed: 01/12/2023]
Abstract
BACKGROUND This study aimed to determine whether there were sensitive periods when a first exposure to trauma was most associated with emotion dysregulation symptoms in adulthood. METHODS Adult participants came from a public urban hospital in Atlanta, GA (n = 1944). Lifetime trauma exposure was assessed using the Traumatic Events Inventory (TEI). Multiple linear regression models were used to assess the association between the developmental timing of first trauma exposure, classified as early childhood (ages 0-5), middle childhood (ages 6-10), adolescence (ages 11-18), and adulthood (ages 19+), on adult emotion dysregulation symptoms, measured using the abbreviated Emotion Dysregulation Scale. RESULTS Participants exposed to trauma at any age had higher emotion dysregulation scores than their unexposed peers. However, participants first exposed to child maltreatment or interpersonal violence during middle childhood had higher emotion dysregulation scores relative to those first exposed during other developmental stages; these developmental timing differences were detected even after controlling for sociodemographic factors, exposure to other trauma, and frequency of exposure to trauma. Further, after controlling for current psychiatric symptoms, the effect of other interpersonal trauma exposure in middle childhood was diminished and first exposure to other interpersonal violence in early childhood was associated with significantly lower emotion dysregulation symptoms. LIMITATIONS Limitations of this study include the use of retrospective reports and absence of complete information about trauma severity or duration. CONCLUSION These findings should be replicated in other population-based samples with prospective designs to confirm the importance of developmental timing of trauma on later emotion dysregulation.
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Affiliation(s)
- Erin C. Dunn
- Psychiatric and Neurodevelopmental Genetics Unit, Massachusetts General Hospital, Boston, MA,Department of Psychiatry, Harvard Medical School, Boston, MA,Stanley Center for Psychiatric Research, The Broad Institute of Harvard and MIT, Cambridge, MA,Correspondence: Psychiatric and Neurodevelopmental Genetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, 185 Cambridge Street, Simches Research Building 6th Floor (room 6.252), Boston, MA 02114. Phone: 617 726 9387; Fax: 617 726 0830.
| | - Kristen Nishimi
- Psychiatric and Neurodevelopmental Genetics Unit, Massachusetts General Hospital, Boston, MA,Harvard T.H. Chan School of Public Health, Boston, MA
| | - Stephanie H. Gomez
- Psychiatric and Neurodevelopmental Genetics Unit, Massachusetts General Hospital, Boston, MA
| | - Abigail Powers Lott
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA
| | - Bekh Bradley
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA,Atlanta VA Medical Center, Atlanta, GA
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de Weerth C. Do bacteria shape our development? Crosstalk between intestinal microbiota and HPA axis. Neurosci Biobehav Rev 2017; 83:458-71. [PMID: 28918360 DOI: 10.1016/j.neubiorev.2017.09.016] [Citation(s) in RCA: 119] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 09/01/2017] [Accepted: 09/12/2017] [Indexed: 02/08/2023]
Abstract
The human body contains as many bacteria in the intestine as the total number of human body cells. These bacteria have a central position in human health and disease, and would also play a role in the regulation of emotions, behavior, and even higher cognitive functions. The Hypothalamic-Pituitary-Adrenal axis (HPA axis) is a major physiological stress system that produces cortisol. This hormone is involved in responding to environmental stress and also shapes many aspects of brain development. Both the HPA axis and the intestinal microbiota show rapid and profound developmental changes during the first years of life. Early environmental disturbances can affect the development of both systems. Early adversity, for example, is known to lead to later unbalances in both, as well as to psychopathological behavior and emotions. The goal of this theoretical review is to summarize current knowledge on the developmental crosstalk between the intestinal microbiota and the HPA axis, providing a basis for understanding the development and bidirectional communication between these two essential systems in human functioning.
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Abstract
PURPOSE OF REVIEW A sensitive period in development is one in which it is easier for learning to take place; the behaviour can however still be learned at a later stage, but with more difficulty. This is in contrast to a critical period, a time at which a behaviour must be learned, and if this window of opportunity is missed, then the behaviour can never be acquired. Both might determine food acceptance in childhood. RECENT FINDINGS There is evidence to support the idea of a sensitive period for the introduction of tastes, a critical period for the introduction of textures and for the development of oral motor function, and a possible critical period for the introduction of new foods but only in children where there is an innate disposition to develop early and extreme disgust responses. SUMMARY There are both sensitive and critical periods in the acquisition of food preferences.
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Affiliation(s)
- Gillian Harris
- School of Psychology, University of Birmingham, Birmingham, UK
| | - Sarah Mason
- School of Psychology, University of Birmingham, Birmingham, UK
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Schmidt NM, Glymour MM, Osypuk TL. Adolescence Is a Sensitive Period for Housing Mobility to Influence Risky Behaviors: An Experimental Design. J Adolesc Health 2017; 60:431-437. [PMID: 27998700 PMCID: PMC5366094 DOI: 10.1016/j.jadohealth.2016.10.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 10/22/2016] [Accepted: 10/24/2016] [Indexed: 10/20/2022]
Abstract
PURPOSE Test whether neighborhood mobility effects on adolescent risky behaviors varies at different developmental ages and gender. METHODS The Moving to Opportunity (MTO) study randomly assigned volunteer families (1994-1997) to receive a Section 8 voucher to move to lower poverty neighborhoods versus a public housing control group. We tested three-way treatment, gender, and age-at-randomization interactions using intent-to-treat linear regression predicting a risky behavior index (RBI; measured in 2002, N = 2,829), defined as the fraction of 10 behaviors the youth reported (six measuring risky substance use [RSU], four measuring risky sexual behavior), and the RSU and risky sexual behavior subscales. RESULTS The treatment main effect on RBI was nonsignificant for girls (B = -.01, 95% confidence interval -.024 to .014) and harmful for boys (B = .03, 95% confidence interval .009 to .059; treatment-gender interaction p = .01). The treatment, gender, and age interaction was significant for RBI (p = .02) and RSU (p ≤ .001). Treatment boys 10 years or older at randomization were more likely (p < .05) than controls to exhibit RBI and RSU, whereas there was no effect of treatment for boys <10 years. There were no treatment control differences by age for girls' RBI, but girls 9+ years were less likely than girls ≤8 years to exhibit RSU (p < .05). CONCLUSIONS Moving families of boys aged 10 years or older with rental vouchers may have adverse consequences on risky behaviors but may be beneficial for girls' substance use. Developmental windows are different by gender for the effects of improving neighborhood contexts on adolescent risky behavior.
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Affiliation(s)
- Nicole M. Schmidt
- Minnesota Population Center, University of Minnesota, Minneapolis, Minnesota,Address correspondence to: Nicole M. Schmidt, Ph.D., Minnesota Population Center, University of Minnesota, 225 19th Avenue South, 50 Willey Hall, Minneapolis, MN 55455. (N.M. Schmidt)
| | - M. Maria Glymour
- Department of Epidemiology and Biostatistics, University of California, San Francisco School of Medicine, San Francisco, California
| | - Theresa L. Osypuk
- Minnesota Population Center, University of Minnesota, Minneapolis, Minnesota,Division of Epidemiology and Community Health, University of Minnesota School of Public Health, Minneapolis, Minnesota
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Dunn EC, Nishimi K, Powers A, Bradley B. Is developmental timing of trauma exposure associated with depressive and post-traumatic stress disorder symptoms in adulthood? J Psychiatr Res 2017; 84:119-127. [PMID: 27728852 PMCID: PMC5479490 DOI: 10.1016/j.jpsychires.2016.09.004] [Citation(s) in RCA: 125] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2016] [Revised: 08/18/2016] [Accepted: 09/01/2016] [Indexed: 12/13/2022]
Abstract
BACKGROUND Trauma exposure is a known risk factor for psychopathology. However, the impact of the developmental timing of exposure remains unclear. This study examined the effect of age at first trauma exposure on levels of adult depressive and posttraumatic stress disorder (PTSD) symptoms. METHODS Lifetime trauma exposure (including age at first exposure and frequency), current psychiatric symptoms, and sociodemographic information were collected during interviews with adults participating in a study at a public urban hospital in Atlanta, GA. Multiple linear regression models assessed the association between timing of first trauma exposure, classified as early childhood (ages 0-5), middle childhood (ages 6-10), adolescence (ages 11-18), and adulthood (ages 19+), on adult psychopathology in 2892 individuals. RESULTS Participants exposed to trauma (i.e., child maltreatment, other interpersonal violence, non-interpersonal violence, and other events) at any age had higher depressive and PTSD symptoms compared to their unexposed peers. However, participants first exposed to child maltreatment during early childhood had depression and PTSD symptoms that were about twice as high as those exposed during later developmental stages. This association was detected even after controlling for sociodemographic characteristics, exposure to other trauma types, and frequency of exposure. Participants first exposed during middle childhood to other interpersonal violence also had depressive symptoms scores that were about twice as high as those first exposed during adulthood. CONCLUSIONS Trauma exposure at different ages may differentially impact depressive and PTSD symptoms in adulthood. More detailed examination of timing of trauma exposure is warranted to aid in identifying sensitive periods in development.
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Affiliation(s)
- Erin C. Dunn
- Psychiatric and Neurodevelopmental Genetics Unit, Massachusetts General Hospital, 185 Cambridge St, Simches Research Building, Boston, MA 02114 USA,Department of Psychiatry, Harvard Medical School, 401 Park Drive, 2 West, Room 305, Boston, MA 02215,Stanley Center for Psychiatric Research, The Broad Institute of Harvard and MIT, The Ted and Vada Stanley Building, 75 Ames Street, Cambridge, MA 02142
| | - Kristen Nishimi
- Psychiatric and Neurodevelopmental Genetics Unit, Massachusetts General Hospital, 185 Cambridge St, Simches Research Building, Boston, MA 02114, USA; Harvard T.H. Chan School of Public Health, 677 Huntington Avenue, Boston, MA 02115, USA.
| | - Abigail Powers
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, 201 Dowman Drive, Atlanta, GA 30322, USA.
| | - Bekh Bradley
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, 201 Dowman Drive, Atlanta, GA 30322, USA; Atlanta VA Medical Center, 1670 Clairmont Road, Decatur, GA 30033, USA.
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Byrne ML, Whittle S, Vijayakumar N, Dennison M, Simmons JG, Allen NB. A systematic review of adrenarche as a sensitive period in neurobiological development and mental health. Dev Cogn Neurosci 2016; 25:12-28. [PMID: 28077245 PMCID: PMC6987793 DOI: 10.1016/j.dcn.2016.12.004] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [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] [Received: 04/18/2016] [Revised: 09/17/2016] [Accepted: 12/12/2016] [Indexed: 11/30/2022] Open
Abstract
Substantial hormonal and neurobiological changes occur during puberty, and are widely argued to render this period of life a sensitive period in terms of risk for mental health problems. However, there is a paucity of research focusing on adrenarche, the earlier phase of pubertal development. Furthermore, there is a limited understanding of the association between adrenarche and neural development during this phase of life. We systematically reviewed research examining human adrenarcheal development as operationalized by hormonal levels of DHEA and DHEA-S, in relation to indices of mental health (Systematic Review 1). We then reviewed the limited amount of literature that has examined the association between adrenarcheal development and brain structure or function (Systematic Review 2). In general, studies showed that earlier timing of adrenarche was associated with greater mental health symptoms, and there is emerging support that brain development plays a role in this relationship. However, several methodological inconsistencies were noted. We propose that future research in this area test a theoretical model of adrenarche as a sensitive period of neurobiological development, whereby timing of exposure to hormones interacts with brain development, biological sex, and psychosocial stress to influence environmental sensitivity and risk for mental health problems through adolescence.
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Affiliation(s)
| | - Sarah Whittle
- Melbourne Neuropsychiatry Centre, The University of Melbourne and Melbourne Health, Victoria, Australia
| | | | - Meg Dennison
- Department of Psychology, University of Washington, Seattle, WA, USA
| | - Julian G Simmons
- Melbourne Neuropsychiatry Centre, The University of Melbourne and Melbourne Health, Victoria, Australia; Melbourne School of Psychological Sciences, The University of Melbourne, Victoria, Australia
| | - Nicholas B Allen
- Department of Psychology, University of Oregon, Eugene, OR, USA; Melbourne School of Psychological Sciences, The University of Melbourne, Victoria, Australia.
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Hamad R, Rehkopf DH, Kuan KY, Cullen MR. Predicting later life health status and mortality using state-level socioeconomic characteristics in early life. SSM Popul Health 2016; 2:269-276. [PMID: 27713921 PMCID: PMC5047283 DOI: 10.1016/j.ssmph.2016.04.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 04/13/2016] [Accepted: 04/14/2016] [Indexed: 12/26/2022] Open
Abstract
Studies extending across multiple life stages promote an understanding of factors influencing health across the life span. Existing work has largely focused on individual-level rather than area-level early life determinants of health. In this study, we linked multiple data sets to examine whether early life state-level characteristics were predictive of health and mortality decades later. The sample included 143,755 U.S. employees, for whom work life claims and administrative data were linked with early life state-of-residence and mortality. We first created a "state health risk score" (SHRS) and "state mortality risk score" (SMRS) by modeling state-level contextual characteristics with health status and mortality in a randomly selected 30% of the sample (the "training set"). We then examined the association of these scores with objective health status and mortality in later life in the remaining 70% of the sample (the "test set") using multivariate linear and Cox regressions, respectively. The association between the SHRS and adult health status was β=0.14 (95%CI: 0.084, 0.20), while the hazard ratio for the SMRS was 0.96 (95%CI: 0.93, 1.00). The association between the SHRS and health was not statistically significant in older age groups at a p-level of 0.05, and there was a statistically significantly different association for health status among movers compared to stayers. This study uses a life course perspective and supports the idea of "sensitive periods" in early life that have enduring impacts on health. It adds to the literature examining populations in the U.S. where large linked data sets are infrequently available.
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Affiliation(s)
- Rita Hamad
- Stanford University, Department of Medicine, 1070 Arastradero Road, Palo Alto, CA 94304, USA
| | - David H. Rehkopf
- Stanford University, Department of Medicine, 1070 Arastradero Road, Palo Alto, CA 94304, USA
| | - Kai Y. Kuan
- Stanford University, Department of Statistics, 390 Serra Mall, Stanford, CA 94305, USA
| | - Mark R. Cullen
- Stanford University, Department of Medicine, 1070 Arastradero Road, Palo Alto, CA 94304, USA
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Abstract
Early substance use dramatically increases the risk of substance use disorder (SUD). Although many try drugs, only a small percentage transition to SUD. High reactivity of reward, habit, and stress systems increase risk. Identification of early risk enables targeted, preventative interventions for SUD. Prevention must start before the sensitive adolescent period to maximize resilience.
Early adolescent substance use dramatically increases the risk of lifelong substance use disorder (SUD). An adolescent sensitive period evolved to allow the development of risk-taking traits that aid in survival; today these may manifest as a vulnerability to drugs of abuse. Early substance use interferes with ongoing neurodevelopment to induce neurobiological changes that further augment SUD risk. Although many individuals use drugs recreationally, only a small percentage transition to SUD. Current theories on the etiology of addiction can lend insights into the risk factors that increase vulnerability from early recreational use to addiction. Building on the work of others, we suggest individual risk for SUD emerges from an immature PFC combined with hyper-reactivity of reward salience, habit, and stress systems. Early identification of risk factors is critical to reducing the occurrence of SUD. We suggest preventative interventions for SUD that can be either tailored to individual risk profiles and/or implemented broadly, prior to the sensitive adolescent period, to maximize resilience to developing substance dependence. Recommendations for future research include a focus on the juvenile and adolescent periods as well as on sex differences to better understand early risk and identify the most efficacious preventions for SUD.
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Affiliation(s)
- Chloe J Jordan
- Department of Psychiatry, Mclean Hospital/Harvard Medical School, Belmont, MA 02478, United States.
| | - Susan L Andersen
- Department of Psychiatry, Mclean Hospital/Harvard Medical School, Belmont, MA 02478, United States
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Schulz KM, Sisk CL. The organizing actions of adolescent gonadal steroid hormones on brain and behavioral development. Neurosci Biobehav Rev 2016; 70:148-158. [PMID: 27497718 DOI: 10.1016/j.neubiorev.2016.07.036] [Citation(s) in RCA: 171] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 07/13/2016] [Accepted: 07/14/2016] [Indexed: 01/03/2023]
Abstract
Adolescence is a developmental period characterized by dramatic changes in cognition, risk-taking and social behavior. Although gonadal steroid hormones are well-known mediators of these behaviors in adulthood, the role gonadal steroid hormones play in shaping the adolescent brain and behavioral development has only come to light in recent years. Here we discuss the sex-specific impact of gonadal steroid hormones on the developing adolescent brain. Indeed, the effects of gonadal steroid hormones during adolescence on brain structure and behavioral outcomes differs markedly between the sexes. Research findings suggest that adolescence, like the perinatal period, is a sensitive period for the sex-specific effects of gonadal steroid hormones on brain and behavioral development. Furthermore, evidence from studies on male sexual behavior suggests that adolescence is part of a protracted postnatal sensitive period that begins perinatally and ends following adolescence. As such, the perinatal and peripubertal periods of brain and behavioral organization likely do not represent two discrete sensitive periods, but instead are the consequence of normative developmental timing of gonadal hormone secretions in males and females.
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Affiliation(s)
- Kalynn M Schulz
- Department of Psychology, University of Tennessee, Knoxville, TN 37996, United States.
| | - Cheryl L Sisk
- Neuroscience Program, Michigan State University, East Lansing, MI 48824, United States.
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Wang Y, Raffeld MR, Slopen N, Hale L, Dunn EC. Childhood adversity and insomnia in adolescence. Sleep Med 2016; 21:12-8. [PMID: 27448466 DOI: 10.1016/j.sleep.2016.01.011] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 01/25/2016] [Accepted: 01/27/2016] [Indexed: 11/20/2022]
Abstract
OBJECTIVE The study aims to evaluate the association between exposure to childhood adversity and insomnia, with an emphasis on the role of adversity type, timing, and accumulation (i.e., the number of specific types of adversities the child reported being exposed to). METHODS Our analytic sample comprised 9582 adolescents from the National Comorbidity Survey Replication Adolescent Supplement (NCS-A), a nationally representative population-based sample. We examined the association between 18 different types of retrospectively reported adversities (capturing interpersonal violence, accidents and injuries, social network or witnessing events, and other adverse events) and risk of self-reported past-year insomnia. We also examined whether the age at first exposure to adversity was associated with the risk of insomnia, and whether exposure to a greater number of different types of adversities (ie, accumulation) conferred an elevated risk of insomnia. In addition, we performed a sensitivity analysis excluding adolescents with a past-year diagnosis of major depression, dysthymia, post-traumatic stress disorder (PTSD), or generalized anxiety disorder. RESULTS Almost one-third of adolescents reported insomnia, with a higher prevalence among girls and those from racial/ethnic minority groups. Adolescents exposed to at least one childhood adversity of any type (59.41%) were more likely than their nonexposed peers to experience insomnia (across adversities, prevalence ratios (PRs) ranged from 1.31 to 1.89). Risk of insomnia differed based on the age at first exposure to adversity as well as the type of adversity. Adolescents exposed to a greater number of different types of adversities had a higher risk of insomnia compared to those experiencing fewer adversities. These results were similar, by and large, to those obtained after excluding adolescents with at least one of the four past-year psychiatric disorders. CONCLUSIONS Exposure to adversity confers an elevated risk of insomnia. This association varied by type, timing, and accumulation of exposure and did not appear to be driven by psychiatric disorders. Given the well-documented physical and mental health consequences of insomnia, such findings further support the need for practitioners to screen children for exposure to childhood adversity and insomnia symptoms.
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Goosby BJ, Cheadle JE, McDade T. Birth weight, early life course BMI, and body size change: Chains of risk to adult inflammation? Soc Sci Med 2016; 148:102-9. [PMID: 26685708 PMCID: PMC4698177 DOI: 10.1016/j.socscimed.2015.11.040] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 10/22/2015] [Accepted: 11/24/2015] [Indexed: 12/20/2022]
Abstract
This paper examines how body size changes over the early life course to predict high sensitivity C-reactive protein in a U.S. based sample. Using three waves of the National Longitudinal Study of Adolescent Health (Add Health), we test the chronic disease epidemiological models of fetal origins, sensitive periods, and chains of risk from birth into adulthood. Few studies link birth weight and changes in obesity status over adolescence and early adulthood to adult obesity and inflammation. Consistent with fetal origins and sensitive periods hypotheses, body size and obesity status at each developmental period, along with increasing body size between periods, are highly correlated with adult CRP. However, the predictive power of earlier life course periods is mediated by body size and body size change at later periods in a pattern consistent with the chains of risk model. Adult increases in obesity had effect sizes of nearly 0.3 sd, and effect sizes from overweight to the largest obesity categories were between 0.3 and 1 sd. There was also evidence that risk can be offset by weight loss, which suggests that interventions can reduce inflammation and cardiovascular risk, that females are more sensitive to body size changes, and that body size trajectories over the early life course account for African American- and Hispanic-white disparities in adult inflammation.
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47
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Dunn EC, Busso DS, Raffeld MR, Smoller JW, Nelson CA, Doyle AE, Luk G. Does developmental timing of exposure to child maltreatment predict memory performance in adulthood? Results from a large, population-based sample. Child Abuse Negl 2016; 51:181-91. [PMID: 26585216 PMCID: PMC4713298 DOI: 10.1016/j.chiabu.2015.10.014] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 10/13/2015] [Accepted: 10/15/2015] [Indexed: 05/23/2023]
Abstract
Although maltreatment is a known risk factor for multiple adverse outcomes across the lifespan, its effects on cognitive development, especially memory, are poorly understood. Using data from a large, nationally representative sample of young adults (Add Health), we examined the effects of physical and sexual abuse on working and short-term memory in adulthood. We examined the association between exposure to maltreatment as well as its timing of first onset after adjusting for covariates. Of our sample, 16.50% of respondents were exposed to physical abuse and 4.36% to sexual abuse by age 17. An analysis comparing unexposed respondents to those exposed to physical or sexual abuse did not yield any significant differences in adult memory performance. However, two developmental time periods emerged as important for shaping memory following exposure to sexual abuse, but in opposite ways. Relative to non-exposed respondents, those exposed to sexual abuse during early childhood (ages 3-5), had better number recall and those first exposed during adolescence (ages 14-17) had worse number recall. However, other variables, including socioeconomic status, played a larger role (than maltreatment) on working and short-term memory. We conclude that a simple examination of "exposed" versus "unexposed" respondents may obscure potentially important within-group differences that are revealed by examining the effects of age at onset to maltreatment.
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Affiliation(s)
- Erin C. Dunn
- Center for Human Genetic Research, Massachusetts General Hospital
- Department of Psychiatry, Harvard Medical School
- Stanley Center for Psychiatric Research, The Broad Institute of Harvard and MIT
| | | | | | - Jordan W. Smoller
- Center for Human Genetic Research, Massachusetts General Hospital
- Department of Psychiatry, Harvard Medical School
- Stanley Center for Psychiatric Research, The Broad Institute of Harvard and MIT
- Boston Children's Hospital, Boston, MA
| | - Charles A. Nelson
- Harvard Graduate School of Education, Cambridge, MA
- Boston Children's Hospital, Boston, MA
- Center on the Developing Child, Harvard University
| | - Alysa E. Doyle
- Center for Human Genetic Research, Massachusetts General Hospital
- Department of Psychiatry, Harvard Medical School
- Stanley Center for Psychiatric Research, The Broad Institute of Harvard and MIT
| | - Gigi Luk
- Harvard Graduate School of Education, Cambridge, MA
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Nelson EE, Jarcho JM, Guyer AE. Social re-orientation and brain development: An expanded and updated view. Dev Cogn Neurosci 2016; 17:118-27. [PMID: 26777136 DOI: 10.1016/j.dcn.2015.12.008] [Citation(s) in RCA: 233] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Revised: 06/12/2015] [Accepted: 12/19/2015] [Indexed: 12/30/2022] Open
Abstract
We expand our adolescent re-orientation model to include other developmental periods. We review neuroimaging literature on social information processing. We combine human and animal based approaches to social behavior.
Social development has been the focus of a great deal of neuroscience based research over the past decade. In this review, we focus on providing a framework for understanding how changes in facets of social development may correspond with changes in brain function. We argue that (1) distinct phases of social behavior emerge based on whether the organizing social force is the mother, peer play, peer integration, or romantic intimacy; (2) each phase is marked by a high degree of affect-driven motivation that elicits a distinct response in subcortical structures; (3) activity generated by these structures interacts with circuits in prefrontal cortex that guide executive functions, and occipital and temporal lobe circuits, which generate specific sensory and perceptual social representations. We propose that the direction, magnitude and duration of interaction among these affective, executive, and perceptual systems may relate to distinct sensitive periods across development that contribute to establishing long-term patterns of brain function and behavior.
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49
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Abstract
Strong evidence indicates that reciprocal connections between the amygdala and the medial prefrontal cortex (mPFC) support fundamental aspects of emotional behavior in adulthood. However, this circuitry is slow to develop in humans, exhibiting immaturity in childhood. The argument is made that the development of this circuitry in humans is intimately associated with caregiving, such that parental availability during childhood provides important and enduring scaffolding of neuroaffective processes that ultimately form of the nature of the adult phenotype.
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Affiliation(s)
- Nim Tottenham
- a Department of Psychology , Columbia University , New York , NY , USA
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50
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Abstract
Strong evidence indicates that reciprocal connections between the amygdala and the medial prefrontal cortex (mPFC) support fundamental aspects of emotional behavior in adulthood. However, this circuitry is slow to develop in humans, exhibiting immaturity in childhood. The argument is made that the development of this circuitry in humans is intimately associated with caregiving, such that parental availability during childhood provides important and enduring scaffolding of neuroaffective processes that ultimately form of the nature of the adult phenotype.
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Affiliation(s)
- Nim Tottenham
- a Department of Psychology , Columbia University , New York , NY , USA
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