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Shadowen N, Meehan Z, Webb C, Fowles T, Beveridge R. Early intervention in youth psychosis: Novel approaches to understanding change. Psychiatry Res 2023; 326:115269. [PMID: 37331067 DOI: 10.1016/j.psychres.2023.115269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 05/25/2023] [Accepted: 05/27/2023] [Indexed: 06/20/2023]
Abstract
Untreated psychosis in adolescents and young adults is associated with significant and progressive impairment. Early intervention to provide support and treatment for those at risk of psychosis is essential. Several early intervention models have been developed for those at-risk and those who are victims of a recent episode - including the Portland Identification and Early Referral model (PIER; McFarlane, 2001). This study extends previous work demonstrating a variety of positive treatment outcomes achieved by PIER in the context of a large-scale implementation across the state of Delaware. The sample included 108 youth and young adults who were either at risk for psychosis or had already experienced a first episode within the past two years. Participants received the PIER treatment model and were followed from baseline to six months after they were discharged from treatment. Researchers predicted that PIER participants would experience an increase in functioning and a decrease in positive psychosis symptoms. Change over time was examined through the lens of two analytic techniques: the Reliable Change Index (RCI) analyses and Growth Curve Modeling (GCM). Results show improvement on a number of outcomes over the course of the intervention as expected. Clinical implications, limitations, and suggestions for further research are discussed.
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Affiliation(s)
- Noel Shadowen
- University of Delaware, Center for Training Evaluation and Community Collaboration, 210 South College Avenue, Newark, DE 19716; Skyline Psychotherapy & Assessment Services, PLLC, Philadelphia, PA.
| | - Zachary Meehan
- University of Delaware, Center for Training Evaluation and Community Collaboration, 210 South College Avenue, Newark, DE 19716
| | - Charles Webb
- Office of Evidence-Based Practices, Division of Prevention and Behavioral Health Services, 1825 Faulkland Road, Wilmington, DE 19805
| | - Timothy Fowles
- University of Delaware, Center for Training Evaluation and Community Collaboration, 210 South College Avenue, Newark, DE 19716
| | - Ryan Beveridge
- University of Delaware, Center for Training Evaluation and Community Collaboration, 210 South College Avenue, Newark, DE 19716
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2
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Gill G, Jaka S, Yadav G, Kainth T, Segal Y, Srinivas S, Shah K, Kochhar H, Gunturu S. Examining Risk Factors for Suicidality in Adolescents and Adults Experiencing Their First Episode of Psychosis. Cureus 2023; 15:e43135. [PMID: 37622053 PMCID: PMC10445773 DOI: 10.7759/cureus.43135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/08/2023] [Indexed: 08/26/2023] Open
Abstract
This narrative review aimed to identify the risk factors associated with suicidality in adolescents and adults with first-episode psychosis. The review included studies that examined various factors such as psychiatric, familial, and social factors, as well as previous self-harm, suicidal ideation, and comorbid mental health disorders. A comprehensive literature search was conducted across three publicly available databases (Embase, American Psychological Association PsycINFO, and PubMed) using specific search terms related to first-episode psychosis, suicide, self-harm, and children/adolescents and adults. The inclusion criteria included original articles focusing on prospective and retrospective cohort trials, with substantial data on first-episode psychosis and self-harm, measuring both suicidal intent and outcome. Non-original studies, case reports, case series, non-English-language publications, and studies examining violence and self-harm related to substance-induced psychosis were excluded. After manual screening and removing duplicate articles, 13 articles met the established criteria for inclusion in this review. Included studies adhered to similar inclusion and exclusion criteria, had long-term follow-up, and assessed outcomes at least twice. The findings suggest that depressive symptoms, substance use disorders, previous self-harm or suicidal ideation, and longer duration of untreated psychosis are associated with an increased risk of suicidality. However, insights into psychosis and premorbid intellectual functioning did not show a direct association with suicidality.
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Affiliation(s)
- Gurtej Gill
- Psychiatry, BronxCare Health System, Bronx, USA
| | - Sanobar Jaka
- Section on Tobacco, Alcohol and Drug Use, Department of Population Health, New York University Grossman School of Medicine, New York, USA
| | - Garima Yadav
- Research, Basaveshwara Medical College and Hospital, Chitradurga, IND
| | - Tejasvi Kainth
- Language Access and Internal Medicine, Winnipeg Regional Health Authority, Winnipeg, CAN
| | | | - Sushma Srinivas
- Psychiatry, A.J. Institute of Medical Sciences and Research Centre, Mangalore, IND
| | - Kaushal Shah
- Psychiatry, Griffin Memorial Hospital, Norman, USA
| | - Hansini Kochhar
- Clinical and Translational Research, Larkin Community Hospital, Miami, USA
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3
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Nagy Á, Dombi J, Fülep MP, Rudics E, Hompoth EA, Szabó Z, Dér A, Búzás A, Viharos ZJ, Hoang AT, Maczák B, Vadai G, Gingl Z, László S, Bilicki V, Szendi I. The Actigraphy-Based Identification of Premorbid Latent Liability of Schizophrenia and Bipolar Disorder. SENSORS (BASEL, SWITZERLAND) 2023; 23:958. [PMID: 36679755 PMCID: PMC9863012 DOI: 10.3390/s23020958] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/06/2023] [Accepted: 01/08/2023] [Indexed: 06/17/2023]
Abstract
(1) Background and Goal: Several studies have investigated the association of sleep, diurnal patterns, and circadian rhythms with the presence and with the risk states of mental illnesses such as schizophrenia and bipolar disorder. The goal of our study was to examine actigraphic measures to identify features that can be extracted from them so that a machine learning model can detect premorbid latent liabilities for schizotypy and bipolarity. (2) Methods: Our team developed a small wrist-worn measurement device that collects and identifies actigraphic data based on an accelerometer. The sensors were used by carefully selected healthy participants who were divided into three groups: Control Group (C), Cyclothymia Factor Group (CFG), and Positive Schizotypy Factor Group (PSF). From the data they collected, our team performed data cleaning operations and then used the extracted metrics to generate the feature combinations deemed most effective, along with three machine learning algorithms for categorization. (3) Results: By conducting the training, we were able to identify a set of mildly correlated traits and their order of importance based on the Shapley value that had the greatest impact on the detection of bipolarity and schizotypy according to the logistic regression, Light Gradient Boost, and Random Forest algorithms. (4) Conclusions: These results were successfully compared to the results of other researchers; we had a similar differentiation in features used by others, and successfully developed new ones that might be a good complement for further research. In the future, identifying these traits may help us identify people at risk from mental disorders early in a cost-effective, automated way.
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Affiliation(s)
- Ádám Nagy
- Department of Software Engineering, University of Szeged, 13 Dugonics Square, 6720 Szeged, Hungary
| | - József Dombi
- Department of Computer Algorithms and Artificial Intelligence, University of Szeged, 2 Árpád Square, 6720 Szeged, Hungary
| | - Martin Patrik Fülep
- Department of Software Engineering, University of Szeged, 13 Dugonics Square, 6720 Szeged, Hungary
| | - Emese Rudics
- Department of Software Engineering, University of Szeged, 13 Dugonics Square, 6720 Szeged, Hungary
- Doctoral School of Interdisciplinary Medicine, Department of Medical Genetics, University of Szeged, 4 Somogyi Béla Street, 6720 Szeged, Hungary
| | - Emőke Adrienn Hompoth
- Department of Software Engineering, University of Szeged, 13 Dugonics Square, 6720 Szeged, Hungary
| | - Zoltán Szabó
- Department of Software Engineering, University of Szeged, 13 Dugonics Square, 6720 Szeged, Hungary
| | - András Dér
- ELKH Biological Research Centre, Institute of Biophysics, 62 Temesvári Boulevard, 6726 Szeged, Hungary
| | - András Búzás
- ELKH Biological Research Centre, Institute of Biophysics, 62 Temesvári Boulevard, 6726 Szeged, Hungary
| | - Zsolt János Viharos
- Institute for Computer Science and Control, Center of Excellence in Production Informatics and Control, Eötvös Lóránd Research Network (ELKH), Center of Excellence of the Hungarian Academy of Sciences (MTA), 13-17 Kende Street, 1111 Budapest, Hungary
- Faculty of Economics and Business, John von Neumann University, 10 Izsáki Street, 6000 Kecskemét, Hungary
| | - Anh Tuan Hoang
- Institute for Computer Science and Control, Center of Excellence in Production Informatics and Control, Eötvös Lóránd Research Network (ELKH), Center of Excellence of the Hungarian Academy of Sciences (MTA), 13-17 Kende Street, 1111 Budapest, Hungary
| | - Bálint Maczák
- Department of Technical Informatics, University of Szeged, 2 Árpád Square, 6720 Szeged, Hungary
| | - Gergely Vadai
- Department of Technical Informatics, University of Szeged, 2 Árpád Square, 6720 Szeged, Hungary
| | - Zoltán Gingl
- Department of Technical Informatics, University of Szeged, 2 Árpád Square, 6720 Szeged, Hungary
| | - Szandra László
- Doctoral School of Interdisciplinary Medicine, Department of Medical Genetics, University of Szeged, 4 Somogyi Béla Street, 6720 Szeged, Hungary
| | - Vilmos Bilicki
- Department of Software Engineering, University of Szeged, 13 Dugonics Square, 6720 Szeged, Hungary
| | - István Szendi
- Department of Software Engineering, University of Szeged, 13 Dugonics Square, 6720 Szeged, Hungary
- Department of Psychiatry, Kiskunhalas Semmelweis Hospital, 1 Dr. Monszpart László Street, 6400 Kiskunhalas, Hungary
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Prakash J, Chatterjee K, Srivastava K, Chauhan VS. First-episode psychosis: How long does it last? A review of evolution and trajectory. Ind Psychiatry J 2021; 30:198-206. [PMID: 35017801 PMCID: PMC8709526 DOI: 10.4103/ipj.ipj_38_21] [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: 02/23/2021] [Revised: 03/13/2021] [Accepted: 03/16/2021] [Indexed: 11/12/2022] Open
Abstract
Study of first-episode psychosis (FEP), an episode of psychotic nature which manifests for the first time in an individual in the longitudinal continuum of his/her illness, has been study matter of research interest in recent years. A comprehensive review of the literature will help us understand the evolution and trajectory of this concept better. A literature review of available articles addressing the concept, phenomenology, evolution, identification, course, and outcome of FEP was done; the same was subsequently divided into broad topics for better clarity and analyzed. FEP constituted a clinical psychotic phenomenon with underlying significant heterogeneity in diagnosis, stability, course, and outcome. The study has attempted to view FEP both as horizontal spectrum across various diagnoses and longitudinally ranging from asymptomatic individual with unknown risk status to attenuated psychosis to multiple relapses/unremitting illness. Many risk and protective factors have been brought out with varying certainty ranging bio-psycho-social spectrum. Efforts have been made to calculate polygenic risk score based on genes involvement/sharing between various psychotic spectrum disorders; as well as biomarker panels to identify people at risk. FEP may prove to be an important concept to understand psychosis in general; without putting things into the diagnostic rubric. It may help understand multiple risk and protective factors for the course and outcome of psychotic illness and may clear the cloud to sharpen the evidence toward commonality and distinctiveness between various psychotic diagnoses in vogue for more comprehensive concept.
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Affiliation(s)
- Jyoti Prakash
- Department of Psychiatry, Armed Forces Medical College, Pune, Maharashtra, India
| | - K. Chatterjee
- Department of Psychiatry, Armed Forces Medical College, Pune, Maharashtra, India
| | - K. Srivastava
- Department of Psychiatry, Armed Forces Medical College, Pune, Maharashtra, India
| | - V. S. Chauhan
- Department of Psychiatry, Armed Forces Medical College, Pune, Maharashtra, India
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Malla A, Roy MA, Abdel-Baki A, Conus P, McGorry P. Intervention précoce pour les premiers épisodes psychotiques d’hier à demain : comment relever les défis liés à son déploiement pour en maximiser les bénéfices ? SANTE MENTALE AU QUEBEC 2021. [DOI: 10.7202/1088190ar] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Arsalidou M, Yaple Z, Jurcik T, Ushakov V. Cognitive Brain Signatures of Youth With Early Onset and Relatives With Schizophrenia: Evidence From fMRI Meta-analyses. Schizophr Bull 2020; 46:857-868. [PMID: 31978222 PMCID: PMC7345811 DOI: 10.1093/schbul/sbz130] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Deficits in cognitive function are a major characteristic of schizophrenia. Many functional magnetic resonance imaging (fMRI) studies examine brain correlates of cognitive function in adults with schizophrenia, showing altered implication of associative areas such as the prefrontal cortex and temporal cortex. fMRI studies also examine brain representation of cognitive function in adolescents with early onset schizophrenia and those at risk of the disorder, yet results are often inconsistent. We compile and analyze data from eligible fMRI studies using quantitative meta-analyses to reveal concordant brain activity associated with adolescent relatives of patients with schizophrenia and those with early onset schizophrenia. Results show similar functional hubs of brain activity (eg, precuneus) yet in opposite hemispheres and clusters in ventrolateral rather than dorsolateral prefrontal cortices. Other areas of altered implication include the middle temporal gyrus, insula, and cerebellum. We discuss the findings in reference to the protracted maturation of the prefrontal cortex and possible effects due to the medication status of the two groups.
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Affiliation(s)
- Marie Arsalidou
- Department of Psychology, National Research University Higher School of Economics, Moscow, Russian Federation,Department of Psychology, Faculty of Health, York University, Toronto, ON, Canada,To whom correspondence should be addressed; Armyanskiy per. 4, c2, Moscow, 101000, room 406; tel: 1786-505-9779, e-mail: ; ;
| | - Zachary Yaple
- Department of Psychology, National University of Singapore, Singapore
| | - Tomas Jurcik
- Department of Psychology, National Research University Higher School of Economics, Moscow, Russian Federation
| | - Vadim Ushakov
- Kurchatov Department of NBICS-nature-like technologies, National Research Centre Kurchatov Institute, Moscow, Russian Federation,Department of Cybernetics, National Research Nuclear University “MEPhI”, Moscow, Russian Federation
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Camacho E, Levin L, Torous J. Smartphone Apps to Support Coordinated Specialty Care for Prodromal and Early Course Schizophrenia Disorders: Systematic Review. J Med Internet Res 2019; 21:e16393. [PMID: 31714250 PMCID: PMC6880233 DOI: 10.2196/16393] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 10/23/2019] [Accepted: 10/26/2019] [Indexed: 12/19/2022] Open
Abstract
Background Demand for mental health services, especially for clinical high-risk and early psychosis, has increased, creating a need for new solutions to increase access to and quality of care. Smartphones and mobile technology are potential tools to support coordinated specialty care for early psychosis, given their potential to augment the six core roles of care: case management and team leadership, recovery-oriented psychotherapy, medication management, support for employment and education, coordination with primary care services, and family education and support. However, the services smartphones are actually offering specifically for coordinated specialty care and the level of evidence are unknown. Objective This study aimed to review the published literature on smartphone technology to enhance care for patients with prodromal and early course psychosis and schizophrenia and to analyze studies by type, aligned with coordinated specialty care domains. Methods A systematic literature search was conducted on August 16 and 17, 2019, using the PubMed, EMBASE, Web of Sciences, and PsycINFO electronic databases. The eligible studies were reviewed and screened based on inclusion and exclusion criteria. Results The search uncovered 388 unique results, of which 32 articles met the initial inclusion criteria; 21 eligible studies on 16 unique app platforms were identified. Feasibility studies showed a high user engagement and interest among patients, monitoring studies demonstrated a correlation between app assessments and clinical outcomes, and intervention studies indicated that these apps have the potential to advance care. Eighteen studies reported on app use for the case management roles of coordinated specialty care. No app studies focused on employment and education, coordination with primary care services, and family education and support. Conclusions Although the published literature on smartphone apps for prodromal and first-episode psychosis is small, it is growing exponentially and holds promise to augment both monitoring and interventions. Although the research results and protocols for app studies are not well aligned with all coordinated specialty care roles today, high rates of adoption and feasibility suggest the potential for future efforts. These results will be used to develop coordinated specialty care–specific app evaluation scales and toolkits.
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Affiliation(s)
- Erica Camacho
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - Leonard Levin
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - John Torous
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
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Chan V. Schizophrenia and Psychosis: Diagnosis, Current Research Trends, and Model Treatment Approaches with Implications for Transitional Age Youth. Child Adolesc Psychiatr Clin N Am 2017; 26:341-366. [PMID: 28314460 DOI: 10.1016/j.chc.2016.12.014] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This article reviews the current state of diagnosis and treatment of schizophrenia, describing the recent proliferation of research in high-risk psychosis spectrum conditions, which are different from childhood-onset and early onset schizophrenia, and findings of psychotic-like experiences in the normal population. Taken from adult and childhood literature, clinical quandaries in accurate diagnosis, and treatment gaps in co-occurring, or sometimes confounding, conditions are discussed. Thoughts on the impact of schizophrenia on an emerging adulthood trajectory are offered. Recent best practices in the treatment of schizophrenia are consistent with a recovery-oriented model of mental health services for transitional age youth.
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Affiliation(s)
- Vivien Chan
- 501 Student Health, Student Health Center, University of California Irvine, Irvine, CA 92697-5200, USA; Behavioral Health Services, Children, Youth & Prevention Division, Center for Resiliency Wellness & Education (First Episode Psychosis), Orange County Health Care Agency, 729 W Town & Country Road, Building E, Orange, CA 92868, USA; Department of Psychiatry & Human Behavior, UCI Health, Orange, CA 92868, USA.
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9
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Tso IF, Taylor SF, Grove TB, Niendam T, Adelsheim S, Auther A, Cornblatt B, Carter CS, Calkins R, Ragland JD, Sale T, McFarlane WR. Factor analysis of the Scale of Prodromal Symptoms: data from the Early Detection and Intervention for the Prevention of Psychosis Program. Early Interv Psychiatry 2017; 11:14-22. [PMID: 25529847 PMCID: PMC4723283 DOI: 10.1111/eip.12209] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 10/29/2014] [Indexed: 11/29/2022]
Abstract
AIM The Scale of Prodromal Symptoms (SOPS) was developed to identify individuals experiencing early signs of psychosis, a critical first step towards early intervention. Preliminary dimension reduction analyses suggested that psychosis-risk symptoms may deviate from the traditional symptom structure of schizophrenia, but findings have been inconsistent. This study investigated the phenomenology of psychosis risk symptoms in a large sample from a multi-site, national study using rigorous factor analysis procedure. METHODS Participants were 334 help-seeking youth (age: 17.0 ± 3.3) from the Early Detection and Intervention for the Prevention of Psychosis Program, consisting of 203 participants at clinically higher risk (sum of P scores ≥ 7), 87 with clinically lower risk (sum of P scores < 7) and 44 in very early first-episode psychosis (<30 days of positive symptoms). Baseline SOPS data were subjected to principal axis factoring (PAF), estimating factors based on shared variance, with Oblimin rotation. RESULTS PAF yielded four latent factors explaining 36.1% of total variance: positive symptoms; distress; negative symptoms; and deteriorated thought process. They showed reasonable internal consistency and good convergence validity, and were not orthogonal. CONCLUSIONS The empirical factors of the SOPS showed similarities and notable differences compared with the existing SOPS structure. Regrouping the symptoms based on the empirical symptom dimensions may improve the diagnostic validity of the SOPS. Relative prominence of the factors and symptom frequency support early identification strategies focusing on positive symptoms and distress. Future investigation of long-term functional implications of these symptom factors may further inform intervention strategies.
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Affiliation(s)
- Ivy F Tso
- Department of Psychiatry, University of Michigan, Ann Arbor, Michigan, USA
| | - Stephan F Taylor
- Department of Psychiatry, University of Michigan, Ann Arbor, Michigan, USA
| | - Tyler B Grove
- Department of Psychology, University of Michigan, Ann Arbor, Michigan, USA
| | - Tara Niendam
- Imaging Research Center, University of California Davis, Sacramento, California, USA
| | - Steven Adelsheim
- Department of Psychiatry, Stanford University, Palo Alto, California, USA
| | - Andrea Auther
- Division of Psychiatry Research, The Zucker Hillside Hospital, North Shore-Long Island Jewish Health System, Glen Oaks, New York, USA
| | - Barbara Cornblatt
- Division of Psychiatry Research, The Zucker Hillside Hospital, North Shore-Long Island Jewish Health System, Glen Oaks, New York, USA
| | - Cameron S Carter
- Imaging Research Center, University of California Davis, Sacramento, California, USA.,Center for Neuroscience, University of California Davis, Sacramento, California, USA
| | - Roderick Calkins
- Mid-Valley Behavioral Care Network, Marion County Health Department, Salem, Oregon, USA
| | - J Daniel Ragland
- Imaging Research Center, University of California Davis, Sacramento, California, USA
| | - Tamara Sale
- Mid-Valley Behavioral Care Network, Marion County Health Department, Salem, Oregon, USA
| | - William R McFarlane
- Maine Medical Center Research Institute, Tufts University Medical School, Portland, Maine, USA
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10
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What can triumphs and tribulations from drug research in Alzheimer's disease tell us about the development of psychotropic drugs in general? Lancet Psychiatry 2015; 2:756-764. [PMID: 26249306 PMCID: PMC5161453 DOI: 10.1016/s2215-0366(15)00214-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Revised: 04/15/2015] [Accepted: 04/24/2015] [Indexed: 02/06/2023]
Abstract
Drug development for psychiatric disorders has almost ground to a halt. Some newer drugs are better tolerated or safer than older ones, but none is more effective. Years of failure in preventing or delaying the onset of illness, ameliorating symptoms, lowering suicide rates, or improving quality of life has put the commercial investments that had previously funded drug development at risk. To promote the development of psychiatric drugs with greater efficacy, we need to improve the way we bring potentially beneficial drugs to market. We need to acknowledge, as has been done in other specialties, that people differ in their response to drugs. Psychiatric drug research needs to be grounded in a better understanding of molecular brain mechanisms, neural circuits, and their relations to clinical disease. With this understanding, drugs need to be more precisely directed at specific brain targets. In psychiatric drug development, government, industry, regulatory bodies, and academia should realign to ensure medical science is used in the best interests of patients.
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Holtzman CW, Trotman HD, Goulding SM, Ryan AT, Macdonald AN, Shapiro DI, Brasfield JL, Walker EF. Stress and neurodevelopmental processes in the emergence of psychosis. Neuroscience 2013; 249:172-91. [PMID: 23298853 PMCID: PMC4140178 DOI: 10.1016/j.neuroscience.2012.12.017] [Citation(s) in RCA: 169] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Revised: 11/24/2012] [Accepted: 12/02/2012] [Indexed: 11/28/2022]
Abstract
The notion that stress plays a role in the etiology of psychotic disorders, especially schizophrenia, is longstanding. However, it is only in recent years that the potential neural mechanisms mediating this effect have come into sharper focus. The introduction of more sophisticated models of the interplay between psychosocial factors and brain function has expanded our opportunities for conceptualizing more detailed psychobiological models of stress in psychosis. Further, scientific advances in our understanding of adolescent brain development have shed light on a pivotal question that has challenged researchers; namely, why the first episode of psychosis typically occurs in late adolescence/young adulthood. In this paper, we begin by reviewing the evidence supporting associations between psychosocial stress and psychosis in diagnosed patients as well as individuals at clinical high risk for psychosis. We then discuss biological stress systems and examine changes that precede and follow psychosis onset. Next, research findings on structural and functional brain characteristics associated with psychosis are presented; these findings suggest that normal adolescent neuromaturational processes may go awry, thereby setting the stage for the emergence of psychotic syndromes. Finally, a model of neural mechanisms underlying the pathogenesis of psychosis is presented and directions for future research strategies are explored.
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Affiliation(s)
- C. W. Holtzman
- Department of Psychology, Emory University, 36 Eagle Row, Atlanta, GA 30322, United States
| | - H. D. Trotman
- Department of Psychology, Emory University, 36 Eagle Row, Atlanta, GA 30322, United States
| | - S. M. Goulding
- Department of Psychology, Emory University, 36 Eagle Row, Atlanta, GA 30322, United States
| | - A. T. Ryan
- Department of Psychology, Emory University, 36 Eagle Row, Atlanta, GA 30322, United States
| | - A. N. Macdonald
- Department of Psychology, Emory University, 36 Eagle Row, Atlanta, GA 30322, United States
| | - D. I. Shapiro
- Department of Psychology, Emory University, 36 Eagle Row, Atlanta, GA 30322, United States
| | - J. L. Brasfield
- Department of Psychology, Emory University, 36 Eagle Row, Atlanta, GA 30322, United States
| | - E. F. Walker
- Department of Psychology, Emory University, 36 Eagle Row, Atlanta, GA 30322, United States
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12
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Trotman HD, Holtzman CW, Ryan AT, Shapiro DI, MacDonald AN, Goulding SM, Brasfield JL, Walker EF. The development of psychotic disorders in adolescence: a potential role for hormones. Horm Behav 2013; 64:411-9. [PMID: 23998682 PMCID: PMC4070947 DOI: 10.1016/j.yhbeh.2013.02.018] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Revised: 01/20/2013] [Accepted: 02/26/2013] [Indexed: 12/14/2022]
Abstract
This article is part of a Special Issue "Puberty and Adolescence". The notion that adolescence is characterized by dramatic changes in behavior, and often by emotional upheaval, is widespread and longstanding in popular western culture. In recent decades, this notion has gained increasing support from empirical research showing that the peri- and post-pubertal developmental stages are associated with a significant rise in the rate of psychiatric symptoms and syndromes. As a result, interest in adolescent development has burgeoned among researchers focused on the origins of schizophrenia and other psychotic disorders. Two factors have fueled this trend: 1) increasing evidence from longitudinal research that adolescence is the modal period for the emergence of "prodromal" manifestations, or precursors of psychotic symptoms, and 2) the rapidly accumulating scientific findings on brain structural and functional changes occurring during adolescence and young adulthood. Further, gonadal and adrenal hormones are beginning to play a more prominent role in conceptualizations of adolescent brain development, as well as in the origins of psychiatric symptoms during this period (Walker and Bollini, 2002; Walker et al., 2008). In this paper, we begin by providing an overview of the nature and course of psychotic disorders during adolescence/young adulthood. We then turn to the role of hormones in modulating normal brain development, and the potential role they might play in the abnormal brain changes that characterize youth at clinical high-risk (CHR) for psychosis. The activational and organizational effects of hormones are explored, with a focus on how hormone-induced changes might be linked with neuropathological processes in the emergence of psychosis.
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Affiliation(s)
- Hanan D Trotman
- Department of Psychology, Emory University, Atlanta, GA 30322, USA.
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Freedman JL, Zimmet SV, Duckworth K, Friedman-Yakoobian M. Pseudo-ADHD in a case of first-episode schizophrenia: diagnostic and treatment challenges. Harv Rev Psychiatry 2012; 20:309-17. [PMID: 23216068 DOI: 10.3109/10673229.2012.747783] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Tandon N, Shah J, Keshavan MS, Tandon R. Attenuated psychosis and the schizophrenia prodrome: current status of risk identification and psychosis prevention. NEUROPSYCHIATRY 2012; 2:345-353. [PMID: 23125875 PMCID: PMC3483069 DOI: 10.2217/npy.12.36] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Recent efforts in the prevention of schizophrenia have focused on defining psychosis-risk syndromes and evaluating treatments that can prevent transition to psychosis in these ultra-high risk groups. In this review, different kinds of prevention approaches are enumerated and necessary conditions for a disease-prevention strategy are summarized. The broad overlap as well as the significant difference between a schizophrenia prodrome and a 'psychosis-risk syndrome' is discussed and the present status of approaches to identify individuals at increased risk for developing psychosis and schizophrenia are critically examined along with evaluations on therapeutic interventions to reduce these risks. Finally, to conclude, recommendations for current best clinical practice and key questions for the future are suggested.
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Affiliation(s)
- Neeraj Tandon
- Department of Psychiatry, Beth Israel Deaconess Medical Center & Massachusetts Mental Health Center, Harvard Medical School, 401 Park Drive, Room 2P12, The Landmark Center, Boston, MA 02215, USA
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