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Gonzalez-Calvo I, Ronald A, Shakoor S, Taylor MJ, Eley TC, Hosang GM. Perinatal risk factors and subclinical hypomania: A prospective community study. J Affect Disord 2024; 362:885-892. [PMID: 39029678 DOI: 10.1016/j.jad.2024.07.118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 06/27/2024] [Accepted: 07/16/2024] [Indexed: 07/21/2024]
Abstract
BACKGROUND Perinatal risk factors are implicated in the development of psychopathology, but their role in bipolar disorder (BD) and hypomania is unclear. Using data from a prospective community cohort, this is the first study to investigate the association between a range of perinatal risk factors, hypomanic symptoms, and 'high-risk' for BD in the general population. METHODS Parent report of perinatal events were available for 26,040 eighteen-month-olds from the Twins Early Development Study. Subsequent self-report hypomania was measured at ages 16 (Hypomania Checklist-16; N = 2943) and 26 (Mood Disorders Questionnaire; N = 7748). Participants were categorised as 'high-risk' for BD using established classifications. Linear and logistic regressions were conducted within a generalised estimating equations framework to account for relatedness in the sample. RESULTS Prenatal alcohol exposure (β = 0.08, SE = 0.04, p = .0002) and number of alcohol units consumed (β = 0.09, SE = 0.02, p < .0001) were associated with hypomanic symptoms at age 16, and number of alcohol units (OR = 1.13, 95 % CI:1.06-1.21, p = .0003) and maternal stress (OR = 1.68, 95 % CI:1.21-2.34, p = .002) were associated with 'high-risk' for BD age 16. Prenatal tobacco exposure (β = 0.10, SE = 0.04, p < .0001) and number of cigarettes smoked (β = 0.10, SE = 0.01, p < .0001) were associated with hypomanic symptoms and 'high-risk' for BD at age 26, although these result were attenuated controlling for parental psychiatric history. LIMITATIONS Familial confounding could not be fully adjusted for. Rater reports include some biases. CONCLUSIONS These findings show perinatal risk factors to be associated with subclinical hypomania and 'high-risk' for BD. Future work should explore the mechanisms underlying these longitudinal associations, which could shed light on prevention and intervention efforts.
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Affiliation(s)
- Irene Gonzalez-Calvo
- Centre for Psychiatry and Mental Health, Wolfson Institute of Population Health, Faculty of Medicine & Dentistry, Queen Mary University of London, UK.
| | - Angelica Ronald
- Department of Psychology, Faculty of Health and Medical Sciences, University of Surrey, UK
| | - Sania Shakoor
- Centre for Psychiatry and Mental Health, Wolfson Institute of Population Health, Faculty of Medicine & Dentistry, Queen Mary University of London, UK
| | - Mark J Taylor
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Thalia C Eley
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King's College London, Denmark Hill, Camberwell, London, UK; UK National Institute for Health and Care Research (NIHR) Biomedical Research Centre, South London and Maudsley Hospital, London, UK
| | - Georgina M Hosang
- Centre for Psychiatry and Mental Health, Wolfson Institute of Population Health, Faculty of Medicine & Dentistry, Queen Mary University of London, UK
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Staines L, Dooley N, Healy C, Kelleher I, Cotter D, Cannon M. Examining the association between prenatal and perinatal adversity and the psychotic experiences in childhood. Psychol Med 2024:1-12. [PMID: 38433592 DOI: 10.1017/s0033291724000187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
BACKGROUND Prenatal and perinatal complications are established risk factors for psychotic disorder, but far less is known about these measures and psychotic experiences (PEs). We investigated the longitudinal effect of prenatal risk factors (maternal behavior, medication complications) and perinatal risk factors (birth weight, medical complications) on frequency of PEs. We also examined the cumulative risk of prenatal/perinatal risk factors, and differences between transient PE, persistent PE, and controls. METHODS The Adolescent Brain Cognitive Development study is a large child cohort (age 9-10 at baseline; n = 11 872 with PE data). PEs were measured longitudinally using the Prodromal Questionnaire-Brief, Child version, and included only if reported as distressing. Mixed-effects models were used for analysis, controlling for random effects, and a substantial number of fixed-effects covariates. RESULTS Urinary tract infection (β = 0.11, 95% confidence interval [CI] 0.03-0.19) and severe anemia (β = 0.18, 95% CI 0.07-0.29) increased frequency of distressing PEs in childhood. Number of prenatal complications increased frequency of PEs (β = 0.03, 95% CI 0.01-0.06) and risk of persistent PEs (odds ratio [OR] = 1.08, 95% CI 1.01-1.15). Maternal smoking was associated with an increased frequency of PEs (β = 0.11, 95% CI 0.04-0.18) and persistent PEs (OR = 1.31, 95% CI 1.04-1.66). Maternal substance use was a risk factor for a 48% increased risk of persistent PEs (OR = 1.48, 95% CI 1.08-2.01). Perinatal complications showed no effect on PEs. CONCLUSIONS This study provides evidence that certain prenatal medical complications (severe nausea, severe anemia), cumulative number of prenatal medical complications, and maternal behaviors (smoking during pregnancy), increased frequency of distressing PEs in childhood. Maternal smoking and substance use, as well as cumulative number of prenatal complications increased risk of persistent PEs.
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Affiliation(s)
- Lorna Staines
- Department of Psychiatry, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Niamh Dooley
- Department of Psychiatry, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Colm Healy
- Department of Psychiatry, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Ian Kelleher
- Department of Psychiatry, Royal College of Surgeons in Ireland, Dublin 2, Ireland
- Division of Psychiatry, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh EH10 5HF, UK
| | - David Cotter
- Department of Psychiatry, Royal College of Surgeons in Ireland, Dublin 2, Ireland
- Department of Psychiatry, Beaumont Hospital, Dublin 9, Ireland
| | - Mary Cannon
- Department of Psychiatry, Royal College of Surgeons in Ireland, Dublin 2, Ireland
- Department of Psychiatry, Beaumont Hospital, Dublin 9, Ireland
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Ratheesh A, Hammond D, Gao C, Marwaha S, Thompson A, Hartmann J, Davey C, Zammit S, Berk M, McGorry P, Nelson B. Empirically driven transdiagnostic stages in the development of mood, anxiety and psychotic symptoms in a cohort of youth followed from birth. Transl Psychiatry 2023; 13:103. [PMID: 36990979 PMCID: PMC10052262 DOI: 10.1038/s41398-023-02396-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 02/24/2023] [Accepted: 03/10/2023] [Indexed: 03/31/2023] Open
Abstract
Staging models with transdiagnostic validity across mood, psychotic, and anxiety disorders could advance early intervention efforts as well as our understanding of the common underpinnings of such psychopathology. However, there are few well-supported operationalisations for such transdiagnostic models, particularly in community-based samples. We aimed to explore the inter-relationships among mood, psychotic, and anxiety symptom stages, and their common risk factors to develop data-informed transdiagnostic stages. We included participants from the Avon Longitudinal Study of Parents and Children (ALSPAC), a prospective ongoing birth cohort study. We developed operational thresholds for stages of depressive, hypomanic, anxiety, and psychotic symptoms based on the existing literature, refined further by expert consensus. We selected 1b level as the primary stage or outcome of interest. This represents moderate symptoms that are likely to be associated with the onset of the need for clinical mental health care. We used questionnaire and clinic data completed by young people ages 18 and 21 years. We used descriptive methods and network analyses to examine the overlap among Stage 1b psychopathology. We then examined the patterns of relationships between several risk factors and 1b stages using logistic regressions. Among 3269 young people with data available to determine all symptom stages, 64.3% were female and 96% Caucasian. Descriptive and network analyses indicated that 1b level depressive, anxiety, and psychotic symptom stages were inter-related while hypomania was not. Similarly, anxiety, depressive, and psychotic 1b stages were associated with the female sex, more emotional and behavioral difficulties in early adolescence, and life events in late adolescence. Hypomania was not related to any of these risk factors. Given their inter-relationships and similar risk factors, anxiety, psychotic and depressive, symptoms could be combined to form a transdiagnostic stage in this cohort. Such empirical transdiagnostic stages could help with prognostication and indicated prevention in youth mental health.
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Affiliation(s)
- Aswin Ratheesh
- Orygen, Parkville, Australia.
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia.
| | - Dylan Hammond
- Orygen, Parkville, Australia
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - Caroline Gao
- Orygen, Parkville, Australia
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - Steven Marwaha
- Institute for Mental Health, School of Psychology, University of Birmingham, Birmingham, UK
| | - Andrew Thompson
- Orygen, Parkville, Australia
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
- Division of Mental Health and Wellbeing, Warwick Medical school, University of Warwick, Coventry, England
| | - Jessica Hartmann
- Orygen, Parkville, Australia
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - Christopher Davey
- Orygen, Parkville, Australia
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
- Department of Psychiatry, University of Melbourne, Melbourne, Australia
| | - Stanley Zammit
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
- MRC Centre for Neuropsychiatric Genetics and Genomics, School of Medicine, Cardiff University, Cardiff, UK
| | - Michael Berk
- Orygen, Parkville, Australia
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
- Department of Psychiatry, University of Melbourne, Melbourne, Australia
- Institute for Mental and Physical Health and Clinical Translation (IMPACT), Deakin University, Barwon Health, Geelong, Australia
| | - Patrick McGorry
- Orygen, Parkville, Australia
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - Barnaby Nelson
- Orygen, Parkville, Australia
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
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Fung SG, Fakhraei R, Condran G, Regan AK, Dimanlig-Cruz S, Ricci C, Foo D, Sarna M, Török E, Fell DB. Neuropsychiatric outcomes in offspring after fetal exposure to maternal influenza infection during pregnancy: A systematic review. Reprod Toxicol 2022; 113:155-169. [PMID: 36100136 DOI: 10.1016/j.reprotox.2022.09.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 08/24/2022] [Accepted: 09/05/2022] [Indexed: 01/15/2023]
Abstract
Increasing evidence suggests that influenza infection in pregnancy may disrupt fetal neurodevelopment. The impact of maternal influenza infection on offspring neuropsychiatric health has not been comprehensively reviewed. We systematically reviewed comparative studies evaluating associations between maternal influenza infection and neuropsychiatric health outcomes in offspring. We searched MEDLINE, EMBASE, CINAHL, and Web of Science for articles published until January 7, 2022. Included were English studies evaluating neuropsychiatric outcomes in offspring aged > 6 months born to women with and without influenza during pregnancy, defined as clinical or laboratory-confirmed influenza illness, or being pregnant during pandemics/epidemics. Of 12,010 records screened, 42 studies were included. Heterogeneity in study design, exposures, and outcome definitions precluded meta-analyses. Four of 14 studies assessing schizophrenia reported adjusted ratio estimates from 0.5 to 8.2; most 95% CIs contained the null value; study quality was high in three of four. Two studies reported an increased risk of schizophrenia with influenza exposure any time during pregnancy (adjusted incidence rate ratio 8.2, 95% CI: 1.4-48.8; adjusted odds ratio 1.3, 95% CI: 1.2-1.5); another reported a reduced risk with first-trimester exposure (adjusted risk ratio 0.5, 95% CI: 0.3-0.9). Seven studies of autism spectrum disorder reported adjusted ratio estimates from 0.9 to 4.0; all 95% CIs included the null value; study quality was high in four. No conclusions could be drawn about the association between exposure to maternal influenza and neuropsychiatric outcomes due to the limited quantity and quality of available research. Large observational studies with long-term follow-up are required to investigate these associations.
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Affiliation(s)
- Stephen G Fung
- Children's Hospital of Eastern Ontario (CHEO) Research Institute, Ottawa, ON, Canada
| | - Romina Fakhraei
- Children's Hospital of Eastern Ontario (CHEO) Research Institute, Ottawa, ON, Canada; The Ottawa Hospital Research Institute, Ottawa, ON, Canada; School of Epidemiology and Public Health, University of Ottawa, Ottawa, ON, Canada
| | | | - Annette K Regan
- School of Nursing and Health Professions, University of San Francisco, San Francisco, CA, United States; Curtin School of Population Health, Curtin University, Perth, WA, Australia; Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, The University of Western Australia, Perth, WA, Australia
| | | | | | - Damien Foo
- Curtin School of Population Health, Curtin University, Perth, WA, Australia; Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, The University of Western Australia, Perth, WA, Australia
| | - Mohinder Sarna
- Curtin School of Population Health, Curtin University, Perth, WA, Australia; Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, The University of Western Australia, Perth, WA, Australia
| | | | - Deshayne B Fell
- Children's Hospital of Eastern Ontario (CHEO) Research Institute, Ottawa, ON, Canada; School of Epidemiology and Public Health, University of Ottawa, Ottawa, ON, Canada.
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Varela RB, Cararo JH, Tye SJ, Carvalho AF, Valvassori SS, Fries GR, Quevedo J. Contributions of epigenetic inheritance to the predisposition of major psychiatric disorders: theoretical framework, evidence, and implications. Neurosci Biobehav Rev 2022; 135:104579. [DOI: 10.1016/j.neubiorev.2022.104579] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 01/10/2022] [Accepted: 02/11/2022] [Indexed: 02/08/2023]
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Morales-Muñoz I, Upthegrove R, Mallikarjun PK, Broome MR, Marwaha S. Longitudinal Associations Between Cognitive Deficits in Childhood and Psychopathological Symptoms in Adolescence and Young Adulthood. JAMA Netw Open 2021; 4:e214724. [PMID: 33825839 PMCID: PMC8027911 DOI: 10.1001/jamanetworkopen.2021.4724] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
IMPORTANCE Cognitive deficits are core features of mental disorders and are important in predicting long-term prognosis. However, it is still unknown whether individual patterns of cognitive deficits predate specific mental disorders. OBJECTIVE To investigate the specificity of the associations of attention, working memory, and inhibition in childhood with borderline personality disorder (BPD), psychosis, depression, and hypomania in adolescence and young adulthood. DESIGN, SETTING, AND PARTICIPANTS This cohort study obtained data from the Avon Longitudinal Study of Parents and Children in the United Kingdom. All pregnant women resident in Avon, United Kingdom, with an expected date of delivery from April 1, 1991, and December 31, 1992, were eligible. Data analysis was conducted from April 1 to September 30, 2020. The sample initially comprised 13 988 participants who were alive at 1 year of age. For this study, data were available for 6333 individuals reporting on any psychopathological measure at ages 11 to 12 years, 4903 individuals at ages 17 to 18 years, and 2963 individuals at 22 to 23 years. EXPOSURES Sustained attention, selective attention, and attentional control were assessed with the Test of Everyday Attention for Children at age 8 years, and working memory and inhibition were assessed at age 10 years with the Counting Span Task and the stop-signal paradigm, respectively. MAIN OUTCOMES AND MEASURES Symptoms of BPD were assessed at ages 11 to 12 years, psychotic experiences and depression were examined at ages 17 to 18 years, and hypomania was examined at ages 22 to 23 years. RESULTS Among 5315 individuals included in the statistical analysis, 2551 (48.0%) were male and 2764 (52.0) were female. Higher sustained attention at 8 years was associated with decreased risk of BPD symptoms at ages 11 to 12 years (adjusted odds ratio [aOR], 0.964; 95% CI, 0.933-0.996; P = .03), better performance on inhibition at age 10 years with decreased risk of psychotic experiences at ages 17 to 18 years (aOR, 0.938; 95% CI, 0.890-0.989; P = .02), higher sustained attention at age 8 years with decreased risk of depressive symptoms at ages 17 to 18 years (aOR, 0.969; 95% CI 0.938-0.9997; P = .048), and better performance in working memory at age 10 years with decreased risk of hypomania symptoms at ages 22 to 23 years (aOR, 0.694; 95% CI, 0.529-0.911; P = .008). After controlling for potential psychopathological overlay, all the associations remained, except for working memory and hypomania. Higher sustained attention at age 8 years was associated with decreased risk of BPD symptoms at ages 11 to 12 years (β = -0.05; P < .001) and of depression at ages 17 to 18 years (β = -0.03; P = .04), and better performance in inhibition at age 10 years was associated with decreased risk of psychotic experiences at ages 17 to 18 years (β = -0.03; P = .04). CONCLUSIONS AND RELEVANCE These findings suggest that specific cognitive deficits in childhood are distinctively associated with different psychopathological symptoms in young people. Furthermore, these results suggest the potential of early cognitive interventions in childhood as a way of modifying or attenuating risk for subsequent psychopathological symptoms.
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Affiliation(s)
- Isabel Morales-Muñoz
- Department of Public Health Solutions, Finnish Institute for Health and Welfare, Helsinki, Finland
- Institute for Mental Health, School of Psychology, University of Birmingham, Birmingham, United Kingdom
| | - Rachel Upthegrove
- Institute for Mental Health, School of Psychology, University of Birmingham, Birmingham, United Kingdom
- Early Intervention Service, Birmingham Women’s and Children’s NHS Foundation Trust, Birmingham, United Kingdom
| | - Pavan K. Mallikarjun
- Institute for Mental Health, School of Psychology, University of Birmingham, Birmingham, United Kingdom
- Early Intervention Service, Birmingham Women’s and Children’s NHS Foundation Trust, Birmingham, United Kingdom
| | - Matthew R. Broome
- Institute for Mental Health, School of Psychology, University of Birmingham, Birmingham, United Kingdom
- Early Intervention Service, Birmingham Women’s and Children’s NHS Foundation Trust, Birmingham, United Kingdom
| | - Steven Marwaha
- Institute for Mental Health, School of Psychology, University of Birmingham, Birmingham, United Kingdom
- Specialist Mood Disorders Clinic, Zinnia Centre, Birmingham, United Kingdom
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Maternal prenatal thyroid function and trajectories of offspring emotional and behavioural problems: findings from the ALSPAC cohort. Eur Child Adolesc Psychiatry 2020; 29:871-879. [PMID: 31529267 DOI: 10.1007/s00787-019-01404-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 09/06/2019] [Indexed: 10/26/2022]
Abstract
Maternal thyroid hormone may have impact on fetal brain development and consequently lead to offspring mental health problems. This study examined the role of maternal prenatal thyroid function on trajectories of offspring emotional and behavioural problems. Data were taken from the Avon Longitudinal Study of Parents and Children. A total of 4839 mother-child pairs were included. Thyroid-stimulating hormone (TSH) levels, free thyroxine (FT4), and thyroid peroxidase antibodies (TPO-Ab) were assessed during the first trimester of pregnancy. Childhood emotional and behavioural problems were assessed using the Strengths and difficulties questionnaire. A group-based modelling approach was used to identify the different trajectories of offspring emotional and behavioural problems reported by parents over four waves of measurement at age 3.5 (42 months), 6.75 (81 months), 9 and 11 years. Multinomial logistic regression was then used to test for an association between hormone levels and class membership. We identified four trajectories of offspring emotional and behavioural problems; normative-decreasing (49.7%), moderate-decreasing (35.7%), moderate-static (8.4%), and high-decreasing (6.2%) trajectory. There were no significant differences in the mean values of mother's FT4, TSH, and the proportion of mothers with positive TPO-Ab between trajectories. Univariable and multivariable multinomial logistic models showed no association between maternal thyroid function (FT4, TSH, and TPO-Ab) and the trajectories of offspring emotional and behavioural problems. The results of our study show that maternal thyroid parameters in a community population are not associated with trajectories of offspring emotional and behavioural problems.
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Fetene DM, Betts KS, Alati R. The role of maternal prenatal thyroid function on offspring depression: Findings from the ALSPAC cohort. Dev Psychopathol 2020; 32:189-196. [PMID: 30688193 DOI: 10.1017/s0954579418001657] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Maternal thyroid dysfunction during pregnancy may contribute to offspring neurobehavioral disorders. In this paper, we investigate the relationship between maternal thyroid function during pregnancy and offspring depression and anxiety. Data were taken from the Avon Longitudinal Study of Parents and Children. A total of 2,920 mother-child pairs were included. Thyroid-stimulating hormone levels, free thyroxine (FT4), and thyroid peroxidase antibodies were assessed during the first trimester of pregnancy because maternal supply is the only source of thyroid hormone for the fetus during the first 12 weeks of gestation. Child symptoms of depression and anxiety were assessed using the Development and Well-Being Assessment at ages 7.5 and 15 years. The odds of presenting with depression and anxiety were estimated using the generalized estimating equation. The level of FT4 during the first trimester of pregnancy was associated with child depression combined at ages 7.5 and 15 (odds ratio = 1.21, 95% confidence interval [1.00, 1.14]. An increase of 1 standard deviation of FT4 during pregnancy increased the odds of child depression by 28% after adjustment made for potential confounders. No association was found among maternal levels of thyroid-stimulating hormone, FT4, and thyroid peroxidase antibodies and childhood anxiety. In conclusion, increased levels of FT4 during the first trimester of pregnancy appear be linked to greater risk of offspring depression.
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Affiliation(s)
- Dagnachew Muluye Fetene
- Institute for Social Science Research, University of Queensland, Brisbane, Australia
- College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
- School of Public Health, University of Queensland, Brisbane, Australia
| | - Kim S Betts
- Institute for Social Science Research, University of Queensland, Brisbane, Australia
| | - Rosa Alati
- Institute for Social Science Research, University of Queensland, Brisbane, Australia
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Abstract
Thyroid hormone plays a pivotal role in the developing brain and may affect the development of attention deficit hyperactivity disorder (ADHD). This study aimed to examine the role of maternal thyroid function during pregnancy on offspring ADHD. A total of 2912 mother-child pairs were included from the Avon Longitudinal Study of Parents and Children. Thyroid parameters were assessed during the first trimester of pregnancy. Offspring ADHD was assessed using the Development and Well-Being Assessment at the ages of 7.5 and 15 years. The odds of presenting with ADHD were estimated using generalized estimating equations. Levels of thyroid-stimulating hormone (odds ratio [OR], 0.92; 95% confidence interval [CI], 0.48-1.75), free thyroxine (OR, 1.07; 95% CI, 0.87-1.32), and thyroid peroxidase antibodies (OR, 1.00; 95% CI, 0.80-1.25) were not associated with ADHD in children aged 7.5 and 15 years. This study showed no association between maternal thyroid function and offspring ADHD.
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Abstract
BACKGROUND Cannabis use in young people is common and associated with psychiatric disorders. However, the prospective link between cannabis use and bipolar disorder symptoms has rarely been investigated. The study hypothesis was that adolescent cannabis use is associated with hypomania in early adulthood via several potential etiological pathways. METHODS Data were used from the Avon Longitudinal Study of Parents and Children, a UK birth cohort study. The prospective link between cannabis use at age 17 and hypomania at age 22-23 years was tested using regression analysis, adjusted for gender, early environmental risk factors, alcohol and drug use, and depression and psychotic symptoms at age 18 years. Path analysis examined direct and indirect effects of the link and whether gender, childhood family adversity, or childhood abuse are associated with hypomania via an increased risk of cannabis use. RESULTS Data were available on 3370 participants. Cannabis use at least 2-3 times weekly was associated with later hypomania (OR = 2.21, 95% CI = 1.49-3.28) after adjustment. There was a dose-response relationship (any use vs weekly). Cannabis use mediated the association of both childhood sexual abuse and hypomania, and male gender and hypomania. The cannabis use-hypomania link was not mediated by depression or psychotic symptoms. CONCLUSIONS Adolescent cannabis use may be an independent risk factor for future hypomania, and the nature of the association suggests a potential causal link. Cannabis use mediates the link between childhood abuse and future hypomania. As such it might be a useful target for indicated prevention of hypomania.
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Affiliation(s)
- Steven Marwaha
- Unit of Mental Health and Wellbeing, Warwick Medical School, University of Warwick, Coventry, UK
- Affective Disorders Service, Caludon Centre, Coventry, UK
- To whom correspondence should be addressed; Mental Health and Wellbeing Unit, Division of Health Sciences, Warwick Medical School, University of Warwick, Coventry, UK; tel: +44-2476-151046, fax: +44-24-7646-1606, e-mail:
| | - Catherine Winsper
- Unit of Mental Health and Wellbeing, Warwick Medical School, University of Warwick, Coventry, UK
| | - Paul Bebbington
- Division of Psychiatry, University College London, London, UK
| | - Daniel Smith
- University of Glasgow, Gartnavel Royal Hospital, Glasgow, UK
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Selten JP, Termorshuizen F. The serological evidence for maternal influenza as risk factor for psychosis in offspring is insufficient: critical review and meta-analysis. Schizophr Res 2017; 183:2-9. [PMID: 27856157 DOI: 10.1016/j.schres.2016.11.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 10/29/2016] [Accepted: 11/09/2016] [Indexed: 10/20/2022]
Abstract
Maternal influenza during pregnancy has been suggested to increase the psychosis risk for the offspring. This hypothesis has been tested using "ecological" studies, which examined the risk for individuals born after epidemics, and "serological" studies, based on serological evidence. A study of the latter type obtained an increased schizophrenia risk for individuals exposed during the first trimester. A second study found a relationship between influenza at any time during gestation and risk for bipolar disorder with psychotic features. The aims of this paper are to assess the validity of the serological studies and to evaluate the combined results of ecological and serological investigations using meta-analysis. The serological studies turned out to be of limited validity, because they utilized a single serum specimen. Since influenza antibodies can remain positive for years after infection, many mothers of cases may have been infected before pregnancy. For an adequate timing of exposure one needs an acute and a convalescent specimen, obtained 10-20days later. Meta-analysis with respect to schizophrenia: we pooled the results of the single serological investigation and 8 ecological studies related to the 1957 pandemic (with negative results) and found that the first investigation carried hardly any weight. Bipolar disorder: we pooled the results of the serological investigation and three other studies and obtained a mean, weighted odds ratio of 1.34 (95% CI 0.78-2.29) for individuals possibly exposed during prenatal life. The evidence for gestational influenza as psychosis risk factor is insufficient.
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Affiliation(s)
- Jean-Paul Selten
- Dept of Psychiatry and Neuropsychology, University of Maastricht, The Netherlands; Rivierduinen Institute for Mental Health Care, Leiden, The Netherlands.
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Mackay DF, Anderson JJ, Pell JP, Zammit S, Smith DJ. Exposure to tobacco smoke in utero or during early childhood and risk of hypomania: Prospective birth cohort study. Eur Psychiatry 2016; 39:33-39. [PMID: 27810616 DOI: 10.1016/j.eurpsy.2016.06.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 06/17/2016] [Accepted: 06/20/2016] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES Using data from a prospective birth cohort, we aimed to test for an association between exposure to tobacco smoke in utero or during early development and the experience of hypomania assessed in young adulthood. METHODS We used data on 2957 participants from a large birth cohort (Avon longitudinal study of parents and children [ALSPAC]). The primary outcome of interest was hypomania, and the secondary outcome was "hypomania plus previous psychotic experiences (PE)". Maternally-reported smoking during pregnancy, paternal smoking and exposure to environmental tobacco smoke (ETS) in childhood were the exposures of interest. Multivariable logistic regression was used and estimates of association were adjusted for socio-economic, lifestyle and obstetric factors. RESULTS There was weak evidence of an association between exposure to maternal smoking in utero and lifetime hypomania. However, there was a strong association of maternal smoking during pregnancy within the sub-group of individuals with hypomania who had also experienced psychotic symptoms (OR=3.45; 95% CI: 1.49-7.98; P=0.004). There was no association between paternal smoking, or exposure to ETS during childhood, and hypomania outcomes. CONCLUSIONS Exposure to smoking in utero may be a risk factor for more severe forms of psychopathology on the mood-psychosis spectrum, rather than DSM-defined bipolar disorder.
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Affiliation(s)
- D F Mackay
- Institute of health & wellbeing, university of Glasgow, 1, Lilybank Gardens, G12 8RZ Glasgow, Scotland, United Kingdom.
| | - J J Anderson
- Institute of health & wellbeing, university of Glasgow, 1, Lilybank Gardens, G12 8RZ Glasgow, Scotland, United Kingdom
| | - J P Pell
- Institute of health & wellbeing, university of Glasgow, 1, Lilybank Gardens, G12 8RZ Glasgow, Scotland, United Kingdom
| | - S Zammit
- Department of psychological medicine and clinical neurosciences, school of medicine, Cardiff university, Cardiff, Wales, United Kingdom
| | - D J Smith
- Institute of health & wellbeing, university of Glasgow, 1, Lilybank Gardens, G12 8RZ Glasgow, Scotland, United Kingdom
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