1
|
Bouter DC, Ravensbergen SJ, de Neve-Enthoven NGM, Zarchev M, Mulder CL, Hoogendijk WJG, Roza SJ, Grootendorst-van Mil NH. Five-year follow-up of the iBerry Study: screening in early adolescence to identify those at risk of psychopathology in emerging adulthood. Eur Child Adolesc Psychiatry 2024:10.1007/s00787-024-02462-2. [PMID: 38772966 DOI: 10.1007/s00787-024-02462-2] [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: 11/07/2023] [Accepted: 04/30/2024] [Indexed: 05/23/2024]
Abstract
The iBerry Study, a Dutch population-based high-risk cohort (n = 1022) examines the transition from subclinical symptoms to psychiatric disorders in adolescents. Here, we present the first follow-up measurement, approximately 3 years after baseline assessment and 5 years after the screening based on self-reported emotional and behavioral problems (SDQ-Y). We give an update on the data collection, details on the (non)response, and the results on psychopathology outcomes. The first follow-up (2019-2022) had a response rate of 79% (n = 807). Our results at baseline (mean age 15.0 years) have shown the effectiveness of using the SDQ-Y to select a cohort oversampled for the risk of psychopathology. At first follow-up (mean age 18.1 years), the previously administered SDQ-Y remains predictive for selecting adolescents at risk. At follow-up, 47% of the high-risk adolescents showed significant mental health problems based on self- and parent reports and 46% of the high-risk adolescents met the criteria for multiple DSM-5 diagnoses. Compared to low-risk adolescents, high-risk adolescents had a sevenfold higher odds of significant emotional and behavioral problems at follow-up. Comprehensive assessment on psychopathology, substance abuse, psychotic symptoms, suicidality, nonsuicidal self-injury, addiction to social media and/or video gaming, and delinquency, as well as social development, and the utilization of healthcare and social services were conducted. This wave, as well as the ones to follow, track these adolescents into their young adulthood to identify risk factors, elucidate causal mechanisms, and discern pathways leading to both common and severe mental disorders. Results from the iBerry Study will provide leads for preventive interventions.
Collapse
Affiliation(s)
- D C Bouter
- Department of Psychiatry, Erasmus MC, University Medical Center Rotterdam, P.O. box 2040, 3000 CA, Rotterdam, The Netherlands
| | - S J Ravensbergen
- Department of Psychiatry, Erasmus MC, University Medical Center Rotterdam, P.O. box 2040, 3000 CA, Rotterdam, The Netherlands
| | - N G M de Neve-Enthoven
- Department of Psychiatry, Erasmus MC, University Medical Center Rotterdam, P.O. box 2040, 3000 CA, Rotterdam, The Netherlands
| | - M Zarchev
- Department of Psychiatry, Erasmus MC, University Medical Center Rotterdam, P.O. box 2040, 3000 CA, Rotterdam, The Netherlands
| | - C L Mulder
- Epidemiological and Social Psychiatric Research Institute (ESPRi), Department of Psychiatry, Erasmus MC University Medical Center, Rotterdam, The Netherlands
- Parnassia Psychiatric Institute, Rotterdam, The Netherlands
| | - W J G Hoogendijk
- Department of Psychiatry, Erasmus MC, University Medical Center Rotterdam, P.O. box 2040, 3000 CA, Rotterdam, The Netherlands
| | - S J Roza
- Department of Psychiatry, Erasmus MC, University Medical Center Rotterdam, P.O. box 2040, 3000 CA, Rotterdam, The Netherlands
| | - N H Grootendorst-van Mil
- Department of Psychiatry, Erasmus MC, University Medical Center Rotterdam, P.O. box 2040, 3000 CA, Rotterdam, The Netherlands.
- Epidemiological and Social Psychiatric Research Institute (ESPRi), Department of Psychiatry, Erasmus MC University Medical Center, Rotterdam, The Netherlands.
| |
Collapse
|
2
|
Taylor JH, Bermudez-Gomez J, Zhou M, Gómez O, Ganz-Leary C, Palacios-Ordonez C, Huque ZM, Barzilay R, Goldsmith DR, Gur RE. Immune and oxidative stress biomarkers in pediatric psychosis and psychosis-risk: Meta-analyses and systematic review. Brain Behav Immun 2024; 117:1-11. [PMID: 38141839 DOI: 10.1016/j.bbi.2023.12.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 10/08/2023] [Accepted: 12/18/2023] [Indexed: 12/25/2023] Open
Abstract
OBJECTIVE While genetic and cohort studies suggest immune and reduction/oxidation (redox) alterations occur in psychosis, less is known about potential alterations in children and adolescents. METHODS We conducted a systematic review to identify immune and redox biomarker studies in children and adolescents (mean age ≤ 18 years old) across the psychosis spectrum: from psychotic like experiences, which are common in children, to threshold psychotic disorders like schizophrenia. We conducted meta-analyses when at least three studies measured the same biomarker. RESULTS The systematic review includes 38 pediatric psychosis studies. The meta-analyses found that youth with threshold psychotic disorders had higher neutrophil/lymphocyte ratio (Hedge's g = 0.40, 95 % CI 0.17 - 0.64), tumor necrosis factor (Hedge's g = 0.38, 95 % CI 0.06 - 0.69), C-reactive protein (Hedge's g = 0.38, 95 % CI 0.05 - 0.70), interleukin-6 (Hedge's g = 0.35; 95 % CI 0.11 - 0.64), and total white blood cell count (Hedge's g = 0.29, 95 % CI 0.12 - 0.46) compared to youth without psychosis. Other immune and oxidative stress meta-analytic findings were very heterogeneous. CONCLUSION Results from several studies are consistent with the hypothesis that signals often classified as "proinflammatory" are elevated in threshold pediatric psychotic disorders. Data are less clear for immune markers in subthreshold psychosis and redox markers across the subthreshold and threshold psychosis spectrum. Immune and redox biomarker intervention studies are lacking, and research investigating interventions targeting the immune system in threshold pediatric psychosis is especially warranted.
Collapse
Affiliation(s)
- Jerome Henry Taylor
- Children's Hospital of Philadelphia (CHOP), Philadelphia, PA, USA; University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA; Lifespan Brain Institute of CHOP and Penn Medicine, Philadelphia, PA, USA.
| | - Julieta Bermudez-Gomez
- National Institute of Psychiatry Ramon de la Fuente Muñiz, Mexico City, Mexico; Statiscripts, LLC, USA
| | - Marina Zhou
- University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Oscar Gómez
- Statiscripts, LLC, USA; Faculty of Medicine, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Casey Ganz-Leary
- Children's Hospital of Philadelphia (CHOP), Philadelphia, PA, USA; University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA; Lifespan Brain Institute of CHOP and Penn Medicine, Philadelphia, PA, USA
| | - Cesar Palacios-Ordonez
- Statiscripts, LLC, USA; Monterrey Institute of Technology and Higher Education, Monterrey, Mexico
| | - Zeeshan M Huque
- University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA; Lifespan Brain Institute of CHOP and Penn Medicine, Philadelphia, PA, USA; Temple University, Philadelphia, PA, USA
| | - Ran Barzilay
- Children's Hospital of Philadelphia (CHOP), Philadelphia, PA, USA; University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA; Lifespan Brain Institute of CHOP and Penn Medicine, Philadelphia, PA, USA
| | | | - Raquel E Gur
- Children's Hospital of Philadelphia (CHOP), Philadelphia, PA, USA; University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA; Lifespan Brain Institute of CHOP and Penn Medicine, Philadelphia, PA, USA
| |
Collapse
|
3
|
Nieto L, Domínguez-Martínez T, Navarrete L, Rosel-Vales M, Saracco-Álvarez R, Celada-Borja C, Rascón-Gasca ML, Samperio LGM. The effect of stressful life events on the risk for psychosis: differences between Mexican at clinical and familial high risk. Front Psychiatry 2023; 14:1254993. [PMID: 37840805 PMCID: PMC10570822 DOI: 10.3389/fpsyt.2023.1254993] [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: 07/08/2023] [Accepted: 09/18/2023] [Indexed: 10/17/2023] Open
Abstract
Background Stressful life events (SLEs) in the development of early psychosis have been little studied in low-income countries. This study examines differences in the prevalence of SLEs in Mexican at clinical high risk (CHR) and those with familial high risk for psychosis who do not meet CHR criteria (non-CHR FHR). We also analyze the association between SLEs and CHR. Methods Participants included 43 persons with CHR and 35 with non-CHR FHR. CHR criteria were assessed with the Comprehensive Assessment of At-Risk Mental State. SLEs were assessed using the Questionnaire of Stressful Life Events. Results Participants with CHR reported more SLEs associated with negative academic experiences than those in the non-CHR FHR group. Bullying (OR = 7.77, 95% CI [1.81, 33.32]) and low educational level (OR = 21.25, 95% CI [5.19, 46.90]) were the strongest predictors of CHR, while starting to live with a partner (OR = 0.26, 95% CI [0.10, 0.84]) was associated with a lower risk of CHR. Conclusion Negative school experiences increase the risk of psychosis, particularly bullying, suggesting that schools may be ideal settings for implementing individual preventive strategies to reduce risk factors and increase protective factors to improve the prognosis of those at risk of developing psychosis. In Latin America, there are multiple barriers to early intervention in psychosis. It is thus crucial to identify risk and protective factors at the onset and in the course of psychosis in order to design effective preventive interventions.
Collapse
Affiliation(s)
- Lourdes Nieto
- Centro de Investigación en Salud Mental Global, Dirección de Investigaciones Epidemiológicas y Psicosociales, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz-UNAM, Mexico City, Mexico
| | - Tecelli Domínguez-Martínez
- Centro de Investigación en Salud Mental Global, Dirección de Investigaciones Epidemiológicas y Psicosociales, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz-UNAM, Mexico City, Mexico
| | - Laura Navarrete
- Departamento de Estudios Psicosociales en Poblaciones Específicas, Dirección de Investigaciones Epidemiológicas y Psicosociales, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Mexico City, Mexico
| | - Mauricio Rosel-Vales
- Clínica de Esquizofrenia, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Mexico City, Mexico
| | - Ricardo Saracco-Álvarez
- Subdirección de Investigaciones Clínicas, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Mexico City, Mexico
| | - César Celada-Borja
- Clínica de Esquizofrenia, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Mexico City, Mexico
| | - Maria Luisa Rascón-Gasca
- Departamento de Ciencias Sociales en Salud, Direccion de Investigaciones Epidemiológicas y Psicosociales, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Mexico City, Mexico
| | | |
Collapse
|
4
|
Moore TM, Calkins ME, Rosen AFG, Butler ER, Ruparel K, Fusar-Poli P, Koutsouleris N, McGuire P, Cannon TD, Gur RC, Gur RE. Development of a probability calculator for psychosis risk in children, adolescents, and young adults. Psychol Med 2022; 52:3159-3167. [PMID: 33431073 PMCID: PMC8273212 DOI: 10.1017/s0033291720005231] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND Assessment of risks of illnesses has been an important part of medicine for decades. We now have hundreds of 'risk calculators' for illnesses, including brain disorders, and these calculators are continually improving as more diverse measures are collected on larger samples. METHODS We first replicated an existing psychosis risk calculator and then used our own sample to develop a similar calculator for use in recruiting 'psychosis risk' enriched community samples. We assessed 632 participants age 8-21 (52% female; 48% Black) from a community sample with longitudinal data on neurocognitive, clinical, medical, and environmental variables. We used this information to predict psychosis spectrum (PS) status in the future. We selected variables based on lasso, random forest, and statistical inference relief; and predicted future PS using ridge regression, random forest, and support vector machines. RESULTS Cross-validated prediction diagnostics were obtained by building and testing models in randomly selected sub-samples of the data, resulting in a distribution of the diagnostics; we report the mean. The strongest predictors of later PS status were the Children's Global Assessment Scale; delusions of predicting the future or having one's thoughts/actions controlled; and the percent married in one's neighborhood. Random forest followed by ridge regression was most accurate, with a cross-validated area under the curve (AUC) of 0.67. Adjustment of the model including only six variables reached an AUC of 0.70. CONCLUSIONS Results support the potential application of risk calculators for screening and identification of at-risk community youth in prospective investigations of developmental trajectories of the PS.
Collapse
Affiliation(s)
- Tyler M. Moore
- Department of Psychiatry, Brain Behavior Laboratory, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Lifespan Brain Institute, Penn Medicine and Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Monica E. Calkins
- Department of Psychiatry, Brain Behavior Laboratory, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Lifespan Brain Institute, Penn Medicine and Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Adon F. G. Rosen
- Department of Psychiatry, Brain Behavior Laboratory, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Ellyn R. Butler
- Department of Psychiatry, Brain Behavior Laboratory, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Kosha Ruparel
- Department of Psychiatry, Brain Behavior Laboratory, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Lifespan Brain Institute, Penn Medicine and Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Paolo Fusar-Poli
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London, UK
- OASIS service, South London and Maudsley NHS Foundation Trust, London, UK
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
| | - Nikolaos Koutsouleris
- Department of Psychiatry and Psychotherapy, Ludwig-Maximilian-University Munich, Germany
| | - Philip McGuire
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London, UK
| | - Tyrone D. Cannon
- Departments of Psychology and Psychiatry, Yale University, New Haven, CT 06520, USA
| | - Ruben C. Gur
- Department of Psychiatry, Brain Behavior Laboratory, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Lifespan Brain Institute, Penn Medicine and Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Raquel E. Gur
- Department of Psychiatry, Brain Behavior Laboratory, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Lifespan Brain Institute, Penn Medicine and Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| |
Collapse
|
5
|
Nieto L, Domínguez-Martínez T, Rosel-Vales M, Saracco-Alvarez R, Celada-Borja C, Rascón-Gasca ML. Clinical and Functional Differences Between Mexican Youth at Clinical High Risk for Psychosis and With Familial High Risk. Front Psychol 2022; 13:911030. [PMID: 35859823 PMCID: PMC9289544 DOI: 10.3389/fpsyg.2022.911030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 06/16/2022] [Indexed: 11/25/2022] Open
Abstract
Few studies have explored the differences in clinical psychopathology between youth at high risk for psychosis and those at familial high risk for psychosis. This study seeks to describe and compare the sociodemographic, clinical, and functional characteristics of At-Risk Mental State (ARMS) for psychosis youth and those with a first- or second-degree relative with psychosis (Familial High-Risk: FHR) in a Mexican sample. Twenty-one ARMS individuals and 21 with FHR were evaluated for sociodemographic characteristics, psychopathological symptoms, and functional impairment. ARMS individuals were significantly younger, had fewer years of schooling, and were more likely to be male than those in the FHR group. Groups did not differ as regards marital status or occupation. The ARMS group showed greater severity of prodromal symptoms, schizotypal personality traits, and general psychopathology than the FHR group. In addition, they reported more premorbid adjustment deficit from early adolescence than the FHR group. Current overall social and role functioning was significantly lower in the ARMS group. Findings are consistent with ARMS studies from other countries. First- or second-degree relatives of patients with psychosis should be considered a vulnerable group as they display several symptoms of general psychopathology and may experience social adjustment problems in their adult lives. The lack of early detection and intervention psychosis programs in Mexico underlines the need to prioritize the development of preventive strategies to help close the care gap.
Collapse
Affiliation(s)
- Lourdes Nieto
- Division of Epidemiological and Psychosocial Research, Center for Global Mental Health Research, National Institute of Psychiatry Ramón de la Fuente Muñiz, Mexico City, Mexico
- *Correspondence: Lourdes Nieto,
| | - Tecelli Domínguez-Martínez
- Division of Epidemiological and Psychosocial Research, Center for Global Mental Health Research, National Institute of Psychiatry Ramón de la Fuente Muñiz, Mexico City, Mexico
| | - Mauricio Rosel-Vales
- Schizophrenia Clinic, National Institute of Psychiatry Ramón de la Fuente Muñiz, Mexico City, Mexico
| | - Ricardo Saracco-Alvarez
- Department of Clinical Research, National Institute of Psychiatry Ramón de la Fuente Muñiz, Mexico City, Mexico
| | - Cesar Celada-Borja
- Schizophrenia Clinic, National Institute of Psychiatry Ramón de la Fuente Muñiz, Mexico City, Mexico
| | - María Luisa Rascón-Gasca
- Division of Epidemiological and Psychosocial Research, Department of Social Sciences in Health, National Institute of Psychiatry Ramón de la Fuente Muñiz, Mexico City, Mexico
| |
Collapse
|
6
|
Santesteban-Echarri O, Sandel D, Liu L, Bearden CE, Cadenhead KS, Cannon TD, Cornblatt BA, Keshavan M, Mathalon DH, McGlashan TH, Perkins DO, Seidman LJ, Stone WS, Tsuang MT, Walker EF, Woods SW, Addington J. Family history of psychosis in youth at clinical high risk: A replication study. Psychiatry Res 2022; 311:114480. [PMID: 35245743 DOI: 10.1016/j.psychres.2022.114480] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 02/01/2022] [Accepted: 02/23/2022] [Indexed: 01/18/2023]
Abstract
Having a first-degree relative with a psychotic disorder increases an individual's risk for developing psychosis to 10% compared to 1% in the general population. The impact of being at family high-risk for psychosis (FHR) has been examined in samples of youth who are at clinical high-risk for psychosis (CHR). The second North American Prodrome Longitudinal Study (NAPLS-2) identified very few clinical differences between CHR individuals with and without FHR. This paper aims to confirm these results in a new CHR sample, NAPLS-3. The NAPLS-3 sample consisted of 703 CHR participants, of whom 82 were at FHR (CHR+FHR), and 621 were not (CHR+FHRneg). The Family Interview for Genetic Studies was used to determine the presence of a first-degree relative with a psychotic disorder. The groups were compared on social and role functioning, positive and negative symptoms, IQ, cannabis use, and trauma. At baseline, the CHR+FHR group reported a statistically significant increased severity of positive and negative symptoms, lower IQ scores, and increased reports of trauma, psychological and physical abuse. There were no differences in transition rates between the two groups. This study supports some of the already reported differences in trauma, physical and psychological abuse between CHR individuals with and without FHR.
Collapse
Affiliation(s)
- Olga Santesteban-Echarri
- Department of Psychiatry, Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
| | - Danah Sandel
- Department of Psychiatry, Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
| | - Lu Liu
- Department of Psychiatry, Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
| | - Carrie E Bearden
- Department of Psychiatry and Biobehavioral Sciences and Psychology, UCLA, Los Angeles, CA, United States
| | | | - Tyrone D Cannon
- Department of Psychology, Yale University, New Haven, CT, United States; Department of Psychiatry, Yale University, New Haven, CT, United States
| | - Barbara A Cornblatt
- Department of Psychiatry, Zucker Hillside Hospital, Long Island, NY, United States
| | - Matcheri Keshavan
- Department of Psychiatry, Harvard Medical School Department of Psychiatry at Beth Israel Deaconess Medical Center and Massachusetts Mental Health Center, Boston, MA, United States
| | - Daniel H Mathalon
- Department of Psychiatry, UCSF, and SFVA Medical Center, San Francisco, CA, United States
| | - Thomas H McGlashan
- Department of Psychiatry, University of North Carolina, Chapel Hill, NC, United States
| | - Diana O Perkins
- Department of Psychiatry, University of North Carolina, Chapel Hill, NC, United States
| | - Larry J Seidman
- Department of Psychiatry, Harvard Medical School Department of Psychiatry at Beth Israel Deaconess Medical Center and Massachusetts Mental Health Center, Boston, MA, United States
| | - William S Stone
- Department of Psychiatry, Harvard Medical School Department of Psychiatry at Beth Israel Deaconess Medical Center and Massachusetts Mental Health Center, Boston, MA, United States
| | - Ming T Tsuang
- Department of Psychiatry, UCSD, San Diego, CA, United States; Institute of Genomic Medicine, University of California, La Jolla, CA, United States
| | - Elaine F Walker
- Department of Psychology and Psychiatry, Emory University, Atlanta, GA, United States
| | - Scott W Woods
- Department of Psychiatry, Yale University, New Haven, CT, United States
| | - Jean Addington
- Department of Psychiatry, Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada.
| |
Collapse
|
7
|
Moore TM, Lahey BB. Issues in Estimating Interpretable Lower Order Factors in Second-Order Hierarchical Models: Commentary on Clark et al. (2021). Clin Psychol Sci 2022; 10:593-598. [PMID: 35677113 PMCID: PMC9173570 DOI: 10.1177/21677026211035114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/13/2023]
Abstract
Clark and colleagues asserted that lower-order factors in second-order models are comparable to specific factors in bifactor models when residualized on the general factor (Clark et al., 2021). Modeling simulated data demonstrated that residualized lower-order factors are correlated with bifactor specific factors only to the extent that factor loadings are proportional. Modeling actual data with violations of proportionality showed that specific and residualized lower-order factors are not always highly correlated and have differential correlations with criterion variables, even when both models fit acceptably. Because proportionality constraints limit only second-order models, bifactor models should be the first option for hierarchical modeling.
Collapse
|
8
|
Akingbuwa WA, Hammerschlag AR, Bartels M, Middeldorp CM. Systematic Review: Molecular Studies of Common Genetic Variation in Child and Adolescent Psychiatric Disorders. J Am Acad Child Adolesc Psychiatry 2022; 61:227-242. [PMID: 33932494 DOI: 10.1016/j.jaac.2021.03.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 03/08/2021] [Accepted: 03/19/2021] [Indexed: 12/13/2022]
Abstract
OBJECTIVE A systematic review of studies using molecular genetics and statistical approaches to investigate the role of common genetic variation in the development, persistence, and comorbidity of childhood psychiatric traits was conducted. METHOD A literature review was performed using the PubMed database, following PRISMA guidelines. There were 131 studies meeting inclusion criteria, having investigated at least one type of childhood-onset or childhood-measured psychiatric disorder or trait with the aim of identifying trait-associated common genetic variants, estimating the contribution of single nucleotide polymorphisms (SNPs) to the amount of variance explained (SNP-based heritability), investigating genetic overlap between psychiatric traits, or investigating whether the stability in traits or the association with adult traits is explained by genetic factors. RESULTS The first robustly associated genetic variants have started to be identified for childhood psychiatric traits. There were substantial contributions of common genetic variants to many traits, with variation in single nucleotide polymorphism heritability estimates depending on age and raters. Moreover, genetic variants also appeared to explain comorbidity as well as stability across a range of psychiatric traits in childhood and across the life span. CONCLUSION Common genetic variation plays a substantial role in childhood psychiatric traits. Increased sample sizes will lead to increased power to identify genetic variants and to understand genetic architecture, which will ultimately be beneficial to targeted and prevention strategies. This can be achieved by harmonizing phenotype measurements, as is already proposed by large international consortia and by including the collection of genetic material in every study.
Collapse
Affiliation(s)
- Wonuola A Akingbuwa
- Ms. Akingbuwa, Dr. Hammerschlag, and Profs. Bartels and Middeldorp are with Vrije Universiteit Amsterdam, Amsterdam, The Netherlands; Ms. Akingbuwa, Dr. Hammerschlag, and Prof. Bartels are also with Amsterdam Public Health Research Institute, Amsterdam University Medical Centres, Amsterdam, The Netherlands.
| | - Anke R Hammerschlag
- Ms. Akingbuwa, Dr. Hammerschlag, and Profs. Bartels and Middeldorp are with Vrije Universiteit Amsterdam, Amsterdam, The Netherlands; Ms. Akingbuwa, Dr. Hammerschlag, and Prof. Bartels are also with Amsterdam Public Health Research Institute, Amsterdam University Medical Centres, Amsterdam, The Netherlands; Dr. Hammerschlag and Prof. Middeldorp are also with the Child Health Research Centre, the University of Queensland, Brisbane, Queensland, Australia
| | - Meike Bartels
- Ms. Akingbuwa, Dr. Hammerschlag, and Profs. Bartels and Middeldorp are with Vrije Universiteit Amsterdam, Amsterdam, The Netherlands; Ms. Akingbuwa, Dr. Hammerschlag, and Prof. Bartels are also with Amsterdam Public Health Research Institute, Amsterdam University Medical Centres, Amsterdam, The Netherlands
| | - Christel M Middeldorp
- Ms. Akingbuwa, Dr. Hammerschlag, and Profs. Bartels and Middeldorp are with Vrije Universiteit Amsterdam, Amsterdam, The Netherlands; Dr. Hammerschlag and Prof. Middeldorp are also with the Child Health Research Centre, the University of Queensland, Brisbane, Queensland, Australia; Prof. Middeldorp is also with the Child and Youth Mental Health Service, Children's Health Queensland Hospital and Health Services, Brisbane, Queensland, Australia
| |
Collapse
|
9
|
Karcher NR, Paul SE, Johnson EC, Hatoum AS, Baranger DAA, Agrawal A, Thompson WK, Barch DM, Bogdan R. Psychotic-like Experiences and Polygenic Liability in the Adolescent Brain Cognitive Development Study. BIOLOGICAL PSYCHIATRY. COGNITIVE NEUROSCIENCE AND NEUROIMAGING 2022; 7:45-55. [PMID: 34271214 PMCID: PMC8786267 DOI: 10.1016/j.bpsc.2021.06.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 06/01/2021] [Accepted: 06/28/2021] [Indexed: 01/26/2023]
Abstract
BACKGROUND Childhood psychotic-like experiences (PLEs) often precede the development of later severe psychopathology. This study examined whether childhood PLEs are associated with several psychopathology-related polygenic scores (PGSs) and additionally examined possible neural and behavioral mechanisms. METHODS Adolescent Brain Cognitive Development Study baseline data from children with European ancestry (n = 4650, ages 9-10 years, 46.8% female) were used to estimate associations between PLEs (i.e., both total and presence of significantly distressing) and PGSs for psychopathology (i.e., schizophrenia, psychiatric cross-disorder risk, PLEs) and related phenotypes (i.e., educational attainment [EDU], birth weight, inflammation). We also assessed whether variability in brain structure indices (i.e., volume, cortical thickness, surface area) and behaviors proximal to PGSs (e.g., cognition for EDU) indirectly linked PGSs to PLEs using mediational models. RESULTS Total and significantly distressing PLEs were associated with EDU and cross-disorder PGSs (all %ΔR2s = 0.202%-0.660%; false discovery rate-corrected ps < .006). Significantly distressing PLEs were also associated with higher schizophrenia and PLE PGSs (both %ΔR2 = 0.120%-0.216%; false discovery rate-corrected ps < .03). There was evidence that global brain volume metrics and cognitive performance indirectly linked EDU PGS to PLEs (estimated proportion mediated = 3.33%-32.22%). CONCLUSIONS Total and significantly distressing PLEs were associated with genomic risk indices of broad-spectrum psychopathology risk (i.e., EDU and cross-disorder PGSs). Significantly distressing PLEs were also associated with genomic risk for psychosis (i.e., schizophrenia, PLEs). Global brain volume metrics and PGS-proximal behaviors represent promising putative intermediary phenotypes that may indirectly link genomic risk to psychopathology. Broadly, polygenic scores derived from genome-wide association studies of adult samples generalize to indices of psychopathology risk among children.
Collapse
Affiliation(s)
- Nicole R Karcher
- Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri.
| | - Sarah E Paul
- Department of Psychological and Brain Sciences, Washington University, St. Louis, Missouri
| | - Emma C Johnson
- Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri
| | - Alexander S Hatoum
- Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri
| | - David A A Baranger
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Arpana Agrawal
- Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri
| | - Wesley K Thompson
- Population Neuroscience and Genetics Laboratory, University of California San Diego, San Diego, California
| | - Deanna M Barch
- Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri; Department of Psychological and Brain Sciences, Washington University, St. Louis, Missouri
| | - Ryan Bogdan
- Department of Psychological and Brain Sciences, Washington University, St. Louis, Missouri
| |
Collapse
|
10
|
Dong F, Calkins ME, Compton P, Medoff-Cooper B, Barzilay R, Taylor JH, Moore TM, Gur RC, Gur RE, Hodgson NA. Association between traumatic stressful events and schizotypal symptoms among a community-based sample of adolescents: A 2-year longitudinal study. Schizophr Res 2021; 233:44-51. [PMID: 34225026 DOI: 10.1016/j.schres.2021.06.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 04/30/2021] [Accepted: 06/22/2021] [Indexed: 01/05/2023]
Abstract
BACKGROUND Traumatic stressful events (TSEs) are among the most studied risk factors for subsequent schizotypal symptoms. However, specificity and aggregate effects of trauma exposure on schizotypal symptoms remain unclear. This study investigates these relationships among a community-based sample of US adolescents. MATERIAL AND METHODS A sub-sample of 426 adolescents (51.6% female) from the Philadelphia Neurodevelopmental Cohort study were selected for longitudinal follow-up based on presence (n = 209) or absence (n = 217) of psychosis spectrum symptoms (PSS). At baseline, they completed assessments of demographic, TSEs, other psychopathology (e.g., PSS, anxiety, depression, and behavioral disorder) and family history of psychopathology. Schizotypal symptom dimensions (cognitive-perceptual, interpersonal and disorganized) were evaluated approximately two years later. RESULTS More than half of adolescents experienced at least one type of TSE. Adolescents with assaultive trauma reported about 1.5 times as many symptoms on all three schizotypal symptom dimensions, compared to adolescents with non-assaultive TSE, adjusting for demographic and family history variables. No statistical significance was found after further adjusting for other baseline psychopathology (p > 0.05). There was a significant aggregate effect of TSEs on cognitive-perceptual symptoms with small effect size (p < 0.001, Cohen's f2 = 0.034). CONCLUSIONS We found evidence of an association between aggregate TSEs and cognitive-perceptual symptoms, but trauma type was not associated with schizotypal symptom dimensions when controlling for potential confounders. Our findings highlight the importance of considering aggregate TSE effects and potential confounds when examining associations between TSEs and schizotypy. Trauma and psychosis spectrum screening may be important in the effort to provide trauma-informed care.
Collapse
Affiliation(s)
- Fanghong Dong
- School of Nursing, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Monica E Calkins
- Department of Psychiatry, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA 19104, USA; Lifespan Brain Institute, Penn Medicine and Children's Hospital of Philadelphia (CHOP), Philadelphia, PA 19104, USA
| | - Peggy Compton
- School of Nursing, University of Pennsylvania, Philadelphia, PA 19104, USA
| | | | - Ran Barzilay
- Department of Psychiatry, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA 19104, USA; Lifespan Brain Institute, Penn Medicine and Children's Hospital of Philadelphia (CHOP), Philadelphia, PA 19104, USA; Department of Child and Adolescent Psychiatry and Behavioral Sciences, CHOP, Philadelphia, PA 19104, USA
| | - Jerome H Taylor
- Department of Psychiatry, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA 19104, USA; Lifespan Brain Institute, Penn Medicine and Children's Hospital of Philadelphia (CHOP), Philadelphia, PA 19104, USA; Department of Child and Adolescent Psychiatry and Behavioral Sciences, CHOP, Philadelphia, PA 19104, USA
| | - Tyler M Moore
- Department of Psychiatry, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA 19104, USA; Lifespan Brain Institute, Penn Medicine and Children's Hospital of Philadelphia (CHOP), Philadelphia, PA 19104, USA
| | - Ruben C Gur
- Department of Psychiatry, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA 19104, USA; Lifespan Brain Institute, Penn Medicine and Children's Hospital of Philadelphia (CHOP), Philadelphia, PA 19104, USA; Department of Child and Adolescent Psychiatry and Behavioral Sciences, CHOP, Philadelphia, PA 19104, USA
| | - Raquel E Gur
- Department of Psychiatry, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA 19104, USA; Lifespan Brain Institute, Penn Medicine and Children's Hospital of Philadelphia (CHOP), Philadelphia, PA 19104, USA; Department of Child and Adolescent Psychiatry and Behavioral Sciences, CHOP, Philadelphia, PA 19104, USA
| | - Nancy A Hodgson
- School of Nursing, University of Pennsylvania, Philadelphia, PA 19104, USA.
| |
Collapse
|
11
|
Few primary care pediatricians screen for psychosis but many are willing. Schizophr Res 2021; 232:65-67. [PMID: 34022617 DOI: 10.1016/j.schres.2021.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 04/27/2021] [Accepted: 05/02/2021] [Indexed: 11/21/2022]
|
12
|
Tang SX, Kriz R, Cho S, Park SJ, Harowitz J, Gur RE, Bhati MT, Wolf DH, Sedoc J, Liberman MY. Natural language processing methods are sensitive to sub-clinical linguistic differences in schizophrenia spectrum disorders. NPJ SCHIZOPHRENIA 2021; 7:25. [PMID: 33990615 PMCID: PMC8121795 DOI: 10.1038/s41537-021-00154-3] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 03/26/2021] [Indexed: 01/11/2023]
Abstract
Computerized natural language processing (NLP) allows for objective and sensitive detection of speech disturbance, a hallmark of schizophrenia spectrum disorders (SSD). We explored several methods for characterizing speech changes in SSD (n = 20) compared to healthy control (HC) participants (n = 11) and approached linguistic phenotyping on three levels: individual words, parts-of-speech (POS), and sentence-level coherence. NLP features were compared with a clinical gold standard, the Scale for the Assessment of Thought, Language and Communication (TLC). We utilized Bidirectional Encoder Representations from Transformers (BERT), a state-of-the-art embedding algorithm incorporating bidirectional context. Through the POS approach, we found that SSD used more pronouns but fewer adverbs, adjectives, and determiners (e.g., "the," "a,"). Analysis of individual word usage was notable for more frequent use of first-person singular pronouns among individuals with SSD and first-person plural pronouns among HC. There was a striking increase in incomplete words among SSD. Sentence-level analysis using BERT reflected increased tangentiality among SSD with greater sentence embedding distances. The SSD sample had low speech disturbance on average and there was no difference in group means for TLC scores. However, NLP measures of language disturbance appear to be sensitive to these subclinical differences and showed greater ability to discriminate between HC and SSD than a model based on clinical ratings alone. These intriguing exploratory results from a small sample prompt further inquiry into NLP methods for characterizing language disturbance in SSD and suggest that NLP measures may yield clinically relevant and informative biomarkers.
Collapse
Affiliation(s)
- Sunny X Tang
- Zucker Hillside Hospital, Department of Psychiatry, 75-59 263rd St., Glen Oaks, NY, USA.
- University of Pennsylvania, Department of Psychiatry, 3400 Spruce St, Gates Building, Philadelphia, PA, USA.
- Linguistics Data Consortium, 3600 Market St, Suite 810, Philadelphia, PA, USA.
| | - Reno Kriz
- University of Pennsylvania, Department of Computer Science, 3330 Walnut St, Levine Hall, Philadelphia, PA, USA
| | - Sunghye Cho
- Linguistics Data Consortium, 3600 Market St, Suite 810, Philadelphia, PA, USA
| | - Suh Jung Park
- University of Pennsylvania, Department of Psychiatry, 3400 Spruce St, Gates Building, Philadelphia, PA, USA
| | - Jenna Harowitz
- University of Pennsylvania, Department of Psychiatry, 3400 Spruce St, Gates Building, Philadelphia, PA, USA
| | - Raquel E Gur
- University of Pennsylvania, Department of Psychiatry, 3400 Spruce St, Gates Building, Philadelphia, PA, USA
| | - Mahendra T Bhati
- University of Pennsylvania, Department of Psychiatry, 3400 Spruce St, Gates Building, Philadelphia, PA, USA
- Stanford University, Department of Psychiatry and Neurosurgery, 401 Quarry Road, Stanford, CA, USA
| | - Daniel H Wolf
- University of Pennsylvania, Department of Psychiatry, 3400 Spruce St, Gates Building, Philadelphia, PA, USA
| | - João Sedoc
- New York University, Department of Technology, Operations, and Statistics, 44 West Fourth Street, Kaufman Management Center, New York, NY, USA
| | - Mark Y Liberman
- Linguistics Data Consortium, 3600 Market St, Suite 810, Philadelphia, PA, USA
- University of Pennsylvania, Department of Linguistics, 3401-C Walnut St, Suite 300, C Wing, Philadelphia, PA, USA
| |
Collapse
|
13
|
Taylor JH, Huque ZM. Commentary: Schizophrenia prevention and prodromal psychosis in children and adolescents. J Child Psychol Psychiatry 2021; 62:674-676. [PMID: 33675238 DOI: 10.1111/jcpp.13408] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/21/2021] [Indexed: 12/17/2022]
Abstract
Catalan and colleagues aggregated findings related to detection, prognosis, and intervention in Clinical High Risk for Psychosis (CHR-P) children and adolescents through October 7, 2019 (Catalan et al., 2020). While a sufficient number of studies were available to meta-analytically summarize evidence on detection and prognosis, the authors highlight the need for more studies on interventions, including cognitive behavioral therapy for psychosis, in CHR-P youth. Further research on the biological and neural correlates of CHR-P in children and adolescents is also needed. Though results from the few existing biomarker studies in CHR-P youth were included in the systematic review, disparate study methodologies and outcomes prohibited biomarker study meta-analysis.
Collapse
Affiliation(s)
- Jerome H Taylor
- Department of Child and Adolescent Psychiatry and Behavioral Sciences, Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Zeeshan M Huque
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| |
Collapse
|
14
|
Taylor JH, Appel S, Eli M, Alexander-Bloch A, Maayan L, Gur RE, Bloch MH. Time to Clinical Response in the Treatment of Early Onset Schizophrenia Spectrum Disorders Study. J Child Adolesc Psychopharmacol 2021; 31:46-52. [PMID: 32633541 PMCID: PMC7891207 DOI: 10.1089/cap.2020.0030] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Objectives: We investigated the time course of clinical response in the Treatment of Early Onset Schizophrenia Spectrum Disorders Study (TEOSS). Methods: TEOSS randomized 119 predominantly outpatient youth ages 8-19 years with schizophrenia or schizoaffective disorder to 8 weeks of treatment with molindone, risperidone, or olanzapine. We used proportional hazards regression to determine whether these three antipsychotics differed in the time until clinical response, defined as the time from treatment initiation to the point of achieving a Clinical Global Impressions-Improvement (CGI-I) scale score of 1 ("very much improved") or 2 ("much improved") that was maintained until week 8. Results: Of the 116 youth who initiated treatment, 56 (48%) achieved clinical response. Among clinical responders, the median (±interquartile range) time until clinical response was 4.0 (±4.0) weeks for olanzapine, 4.5 (±4.0) weeks for risperidone, and 6.0 (±4.0) weeks for molindone. There were no significant differences in time course for clinical response between medications (p = 0.84). Youth without symptom improvement (CGI-I ≥ 4) after 3 weeks were more likely to be clinical nonresponders at week 8 (relative risk ratio = 1.98, 95% confidence interval 1.29-3.05), compared with youth with at-least-minimal symptom improvement after 3 weeks when looking at all antipsychotics combined. Conclusion: To our knowledge, our study is the first to investigate medication differences in treatment response timing in early onset schizophrenia spectrum disorders. Clinical response times for molindone, risperidone, and olanzapine were not significantly different. Furthermore, while lack of early improvement predicted clinical nonresponse, whether or not to continue antipsychotic treatment after 3 or more weeks without symptom improvement should be based on clinical judgment after weighing potential risks, benefits, and alternatives. ClinicalTrials.gov Identifier: NCT00053703.
Collapse
Affiliation(s)
- Jerome H. Taylor
- Department of Child and Adolescent Psychiatry and Behavioral Sciences, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.,Department of Psychiatry, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Address correspondence to: Jerome H. Taylor, MD, Department of Child and Adolescent Psychiatry and Behavioral Sciences, Children's Hospital of Philadelphia, 3440 Market Street, Suite 201, Philadelphia, PA 19104, USA
| | - Scott Appel
- Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Matthew Eli
- Department of Child and Adolescent Psychiatry and Behavioral Sciences, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.,Department of Psychiatry, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Aaron Alexander-Bloch
- Department of Child and Adolescent Psychiatry and Behavioral Sciences, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.,Department of Psychiatry, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Lawrence Maayan
- Department of Child and Adolescent Psychiatry and Behavioral Sciences, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Raquel E. Gur
- Department of Child and Adolescent Psychiatry and Behavioral Sciences, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.,Department of Psychiatry, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Michael H. Bloch
- Department of Psychiatry, Child Study Center, Yale University, New Haven, Connecticut, USA
| |
Collapse
|
15
|
Taylor JH, Calkins ME, Gur RE. Markers of Psychosis Risk in the General Population. Biol Psychiatry 2020; 88:337-348. [PMID: 32220500 DOI: 10.1016/j.biopsych.2020.02.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 12/17/2019] [Accepted: 02/05/2020] [Indexed: 12/17/2022]
Abstract
The categorical approach to defining schizophrenia spectrum disorders requires meeting established criteria. To advance early identification and intervention in young people, the field has progressed to studying help-seeking individuals who are at clinical high risk based on subthreshold psychosis spectrum symptoms, and criteria have been articulated for qualifying individuals as at risk. A broader dimensional examination of psychosis has been applied to population-based studies on non-help seekers. This review highlights the ascertainment and assessment approaches to such population-based studies. Most studies are cross-sectional and rely on questionnaires with limited overlap of tools. However, several consistent findings emerge on symptoms, neurocognitive deficits, and neuroimaging parameters and other biomarkers associated with emergence and persistence of psychotic features. The findings are consistent with the literature on abnormalities associated with schizophrenia, including the presence of neurocognitive deficits; abnormalities in brain structure, function, and connectivity that are related to distress; impairment; and functional outcome. These findings support the validity of studying psychosis experiences during development in a way that can chart the emergence of psychosis in the context of general psychopathology. Such studies are necessary for establishing developmental trajectories that characterize this emergence and for identifying risk and resilience biomarkers moderating or modulating the full range of schizophrenia-related manifestations. More community-based studies are needed, with better standardization and harmonization of measures and incorporating longitudinal follow-up, to establish mechanistic links between cellular-molecular aberrations and specific manifestations of psychosis as envisioned by the precision medicine agenda.
Collapse
Affiliation(s)
- Jerome H Taylor
- Lifespan Brain Institute, Penn Medicine and Children's Hospital of Philadelphia, Department of Child and Adolescent Psychiatry and Behavioral Sciences, Children's Hospital of Philadelphia, and Department of Psychiatry, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Monica E Calkins
- Lifespan Brain Institute, Penn Medicine and Children's Hospital of Philadelphia, Department of Child and Adolescent Psychiatry and Behavioral Sciences, Children's Hospital of Philadelphia, and Department of Psychiatry, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Raquel E Gur
- Lifespan Brain Institute, Penn Medicine and Children's Hospital of Philadelphia, Department of Child and Adolescent Psychiatry and Behavioral Sciences, Children's Hospital of Philadelphia, and Department of Psychiatry, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania.
| |
Collapse
|
16
|
Hatzimanolis A, Stefanatou P, Kattoulas E, Ralli I, Dimitrakopoulos S, Foteli S, Kosteletos I, Mantonakis L, Selakovic M, Soldatos RF, Vlachos I, Xenaki LA, Smyrnis N, Stefanis NC. Familial and socioeconomic contributions to premorbid functioning in psychosis: Impact on age at onset and treatment response. Eur Psychiatry 2020; 63:e44. [PMID: 32345391 PMCID: PMC7355181 DOI: 10.1192/j.eurpsy.2020.41] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Background. Premorbid adjustment (PA) abnormalities in psychotic disorders are associated with an earlier age at onset (AAO) and unfavorable clinical outcomes, including treatment resistance. Prior family studies suggest that familial liability, likely reflecting increased genetic risk, and socioeconomic status (SES) contribute to premorbid maladjustment. However, their joint effect possibly indicating gene–environment interaction has not been evaluated. Methods. We examined whether family history of psychosis (FHP) and parental SES may predict PA and AAO in unrelated cases with first-episode psychosis (n = 108) and schizophrenia (n = 104). Premorbid academic and social functioning domains during childhood and early adolescence were retrospectively assessed. Regression analyses were performed to investigate main effects of FHP and parental SES, as well as their interaction. The relationships between PA, AAO, and response to antipsychotic medication were also explored. Results. Positive FHP associated with academic PA difficulties and importantly interacted with parental SES to moderate social PA during childhood (interaction p = 0.024). Positive FHP and parental SES did not predict differences in AAO. Nevertheless, an earlier AAO was observed among cases with worse social PA in childhood (β = −0.20; p = 0.005) and early adolescence (β = −0.19; p = 0.007). Further, confirming evidence emerged for an association between deficient childhood social PA and poor treatment response (p = 0.04). Conclusions. Familial risk for psychosis may interact with parental socioeconomic position influencing social PA in childhood. In addition, this study supports the link between social PA deviations, early psychosis onset, and treatment resistance, which highlights premorbid social functioning as a promising clinical indicator.
Collapse
Affiliation(s)
- Alex Hatzimanolis
- Department of Psychiatry, National and Kapodistrian University of Athens Medical School, Eginition Hospital, 11528 Athens, Greece.,Neurobiology Research Institute, Theodor-Theohari Cozzika Foundation, 11521 Athens, Greece
| | - Pentagiotissa Stefanatou
- Department of Psychiatry, National and Kapodistrian University of Athens Medical School, Eginition Hospital, 11528 Athens, Greece
| | - Emmanouil Kattoulas
- Department of Psychiatry, National and Kapodistrian University of Athens Medical School, Eginition Hospital, 11528 Athens, Greece
| | - Irene Ralli
- Department of Psychiatry, National and Kapodistrian University of Athens Medical School, Eginition Hospital, 11528 Athens, Greece
| | - Stefanos Dimitrakopoulos
- Department of Psychiatry, National and Kapodistrian University of Athens Medical School, Eginition Hospital, 11528 Athens, Greece
| | - Stefania Foteli
- Department of Psychiatry, National and Kapodistrian University of Athens Medical School, Eginition Hospital, 11528 Athens, Greece
| | - Ioannis Kosteletos
- Department of Psychiatry, National and Kapodistrian University of Athens Medical School, Eginition Hospital, 11528 Athens, Greece
| | - Leonidas Mantonakis
- Department of Psychiatry, National and Kapodistrian University of Athens Medical School, Eginition Hospital, 11528 Athens, Greece
| | - Mirjana Selakovic
- Department of Psychiatry, National and Kapodistrian University of Athens Medical School, Eginition Hospital, 11528 Athens, Greece
| | - Rigas-Filippos Soldatos
- Department of Psychiatry, National and Kapodistrian University of Athens Medical School, Eginition Hospital, 11528 Athens, Greece
| | - Ilias Vlachos
- Department of Psychiatry, National and Kapodistrian University of Athens Medical School, Eginition Hospital, 11528 Athens, Greece
| | - Lida-Alkisti Xenaki
- Department of Psychiatry, National and Kapodistrian University of Athens Medical School, Eginition Hospital, 11528 Athens, Greece
| | - Nikolaos Smyrnis
- Department of Psychiatry, National and Kapodistrian University of Athens Medical School, Eginition Hospital, 11528 Athens, Greece.,University Mental Health, Neurosciences and Precision Medicine Research Institute, 11527 Athens, Greece
| | - Nicholas C Stefanis
- Department of Psychiatry, National and Kapodistrian University of Athens Medical School, Eginition Hospital, 11528 Athens, Greece.,Neurobiology Research Institute, Theodor-Theohari Cozzika Foundation, 11521 Athens, Greece.,University Mental Health, Neurosciences and Precision Medicine Research Institute, 11527 Athens, Greece
| |
Collapse
|