1
|
Tang Y, Li Y, Cao P, Dong Y, Xu G, Si Q, Li R, Sui Y. Striatum and globus pallidus structural abnormalities in schizophrenia: A retrospective study of the different stages of the disease. Prog Neuropsychopharmacol Biol Psychiatry 2024; 133:111022. [PMID: 38692473 DOI: 10.1016/j.pnpbp.2024.111022] [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: 11/28/2023] [Revised: 04/14/2024] [Accepted: 04/28/2024] [Indexed: 05/03/2024]
Abstract
BACKGROUND The basal ganglia are important structures for the release of dopamine in the limbic circuits of the midbrain, and the striatum and globus pallidus are the major nuclei of the basal ganglia, and the dysfunction of these regions has been the basis of many models that have attempted to explain the underlying mechanisms of schizophrenia symptoms. The purpose of this study was to investigate the changes in the volume of the striatum subregion and globus pallidus in three different stages of schizophrenia, and to analyze whether these volume changes were related to antipsychotic drugs and schizophrenia symptoms. METHODS In this study, we investigated the volume of the striatum and globus pallidus in patients with schizophrenia at three different stages. The study included 57 patients with first-episode schizophrenia (FSZ), 51 patients with early-stage schizophrenia (ESZ), 86 patients with chronic schizophrenia (CSZ), and 191 healthy controls (HC), all of whom underwent structured magnetic resonance imaging (MRI) scans. Covariance analysis was performed using SPSS 26.0 was used for covariance analysis to determine whether there were significant differences in striatal subregion and globus pallidus volume between groups, and stratified analysis was used to further eliminate the effect of age on brain volume. Finally, the correlation analysis between the region of interest and the cumulative dose of antipsychotic drugs and psychotic symptoms was performed. RESULTS The comparison between the different stages of the illness showed significant volume differences in the left caudate nucleus (lCAU) (F = 2.665, adjusted p = 0.048), left putamen (lPUT) (F = 12.749, adjusted p < 0.001), left pallidum (lPAL) (F = 41.111, adjusted p < 0.001), and right pallidum (rPAL) (F = 14.479, adjusted p < 0.001). Post-hoc analysis with corrections showed that the volume differences in the lCAU subregion disappeared. Further stratified analysis controlling for age showed that compared with the HC, the lPAL (t = 4.347, p < 0.001) was initially significantly enlarged in the FSZ group, the lPUT (t = 4.493, p < 0.001), rPUT (t = 2.190, p = 0.031), lPAL (t = 7.894, p < 0.001), and rPAL (t = 4.983, p < 0.001) volumes were all significantly increased in the ESZ group, and the lPUT (t = 3.314, p = 0.002), lPAL (t = 6.334, p < 0.001), and rPAL (t = 3.604, p < 0.001) subregion volumes were also significantly increased in the CSZ group. Correlation analysis showed that lPUT and bilateral globus pallidus were associated with cumulative dose of antipsychotics, but were not associated with clinical symptoms in each subregion. CONCLUSION The findings suggest that different subregions of the striatum and globus pallidus show significant volume differences at different stages of schizophrenia compared to HC. These volume differences may be strong radiographic evidence for schizophrenia. In addition, the lPAL was the only significantly different brain region observed in the FSZ group, suggesting that it may be a sensitive indicator of early brain structural changes in schizophrenia. Finally, our findings support the hypothesis that antipsychotic drugs have an effect on the volume of brain structures.
Collapse
Affiliation(s)
- Yilin Tang
- Department of Psychiatry, The Affiliated Brain Hospital of Nanjing Medical University, China
| | - Yuting Li
- Department of Psychiatry, The Affiliated Brain Hospital of Nanjing Medical University, China
| | - Peiyu Cao
- Department of Psychiatry, The Affiliated Brain Hospital of Nanjing Medical University, China
| | - Yingbo Dong
- Department of Psychiatry, The Affiliated Brain Hospital of Nanjing Medical University, China
| | - Guoxin Xu
- Department of Psychiatry, The Affiliated Brain Hospital of Nanjing Medical University, China
| | - Qi Si
- Huai'an No. 3 People's Hospital, China
| | | | - Yuxiu Sui
- Department of Psychiatry, The Affiliated Brain Hospital of Nanjing Medical University, China.
| |
Collapse
|
2
|
Shams AM, Jabbari S. A deep learning approach for diagnosis of schizophrenia disorder via data augmentation based on convolutional neural network and long short-term memory. Biomed Eng Lett 2024; 14:663-675. [PMID: 38946814 PMCID: PMC11208387 DOI: 10.1007/s13534-024-00360-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 01/09/2024] [Accepted: 01/30/2024] [Indexed: 07/02/2024] Open
Abstract
Schizophrenia (SZ) is a severe, chronic mental disorder without specific treatment. Due to the increasing prevalence of SZ in societies and the similarity of the characteristics of this disease with other mental illnesses such as bipolar disorder, most people are not aware of having it in their daily lives. Therefore, early detection of this disease will allow the sufferer to seek treatment or at least control it. Previous SZ detection studies through machine learning methods, require the extraction and selection of features before the classification process. This study attempts to develop a novel, end-to-end approach based on a 15-layers convolutional neural network (CNN) and a 16-layers CNN- long short-term memory (LSTM) to help psychiatrists automatically diagnose SZ from electroencephalogram (EEG) signals. The deep model uses CNN layers to learn the temporal properties of the signals, while LSTM layers provide the sequence learning mechanism. Also, data augmentation method based on generative adversarial networks is employed over the training set to increase the diversity of the data. Results on a large EEG dataset show the high diagnostic potential of both proposed methods, achieving remarkable accuracy of 98% and 99%. This study shows that the proposed framework is able to accurately discriminate SZ from healthy subject and is potentially useful for developing diagnostic tools for SZ disorder.
Collapse
Affiliation(s)
- Amin Mashayekhi Shams
- Electrical Engineering Department, Engineering Faculty, University of Zanjan, Zanjan, Iran
| | - Sepideh Jabbari
- Electrical Engineering Department, Engineering Faculty, University of Zanjan, Zanjan, Iran
| |
Collapse
|
3
|
Gann EC, Xiong Y, Bui C, Newman SD. The association between discourse production and schizotypal personality traits. Schizophr Res 2024; 270:191-196. [PMID: 38924936 DOI: 10.1016/j.schres.2024.06.024] [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: 08/09/2023] [Revised: 03/31/2024] [Accepted: 06/15/2024] [Indexed: 06/28/2024]
Abstract
Discourse abnormalities are a prominent feature in schizophrenia spectrum disorders, including poor lexical diversity, and have been found to differentiate patients from healthy subjects. However, discourse processing in individuals with high schizotypal personality traits is less understood and is often overshadowed by research on clinical psychotic symptoms. In the present study, we examined schizotypal traits at a non-clinical threshold and their association with lexical diversity and discourse coherence using two automated Natural Language Processing (NLP) tools - Type-Token-Ratio (TTR) measures from the Tool for the Automatic Analysis of Lexical Diversity (TAALED) and discourse coherence using sentence-level average cosign similarity with FastText to assess sentence similarity. 276 college students completed the full assessment including the Schizotypal Personality Questionnaire- Brief Revised (SPQ-BR) and recorded a speech sample describing a detailed painting. Results revealed that high schizotypal traits, specifically positive traits, were associated with lower lexical diversity and higher sentence similarity. Our findings suggest that even when clinically significant symptoms are not present, discourse abnormalities are present in healthy populations with high ST. The stronger association with positive traits suggests that theories of perseveration and top-down processing may warrant further investigation in schizophrenia-spectrum disorders.
Collapse
Affiliation(s)
- Emily C Gann
- Alabama Life Research Institute, The University of Alabama, Tuscaloosa, AL, United States of America
| | - Yanyu Xiong
- Alabama Life Research Institute, The University of Alabama, Tuscaloosa, AL, United States of America
| | - Chuong Bui
- Alabama Life Research Institute, The University of Alabama, Tuscaloosa, AL, United States of America
| | - Sharlene D Newman
- Alabama Life Research Institute, The University of Alabama, Tuscaloosa, AL, United States of America
| |
Collapse
|
4
|
Giersch A, Laprévote V. Perceptual Functioning. Curr Top Behav Neurosci 2023; 63:79-113. [PMID: 36306053 DOI: 10.1007/7854_2022_393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Perceptual disorders are not part of the diagnosis criteria for schizophrenia. Yet, a considerable amount of work has been conducted, especially on visual perception abnormalities, and there is little doubt that visual perception is altered in patients. There are several reasons why such perturbations are of interest in this pathology. They are observed during the prodromal phase of psychosis, they are related to the pathophysiology (clinical disorganization, disorders of the sense of self), and they are associated with neuronal connectivity disorders. Perturbations occur at different levels of processing and likely affect how patients interact and adapt to their surroundings. The literature has become very large, and here we try to summarize different models that have guided the exploration of perception in patients. We also illustrate several lines of research by showing how perception has been investigated and by discussing the interpretation of the results. In addition to discussing domains such as contrast sensitivity, masking, and visual grouping, we develop more recent fields like processing at the level of the retina, and the timing of perception.
Collapse
Affiliation(s)
- Anne Giersch
- University of Strasbourg, INSERM U1114, Centre Hospitalier Régional Universitaire de Strasbourg, Strasbourg, France.
| | - Vincent Laprévote
- University of Strasbourg, INSERM U1114, Centre Hospitalier Régional Universitaire de Strasbourg, Strasbourg, France
- CLIP Centre de Liaison et d'Intervention Précoce, Centre Psychothérapique de Nancy, Laxou, France
- Faculté de Médecine, Université de Lorraine, Vandoeuvre-lès-Nancy, France
| |
Collapse
|
5
|
Omeiza NA, Bakre AG, Abdulrahim HA, Isibor H, Ezurike PU, Sowunmi AA, Ben-Azu B, Aderibigbe AO. Pretreatment with Carpolobia lutea ethanol extract prevents schizophrenia-like behavior in mice models of psychosis. JOURNAL OF ETHNOPHARMACOLOGY 2022; 295:115432. [PMID: 35659625 DOI: 10.1016/j.jep.2022.115432] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 05/28/2022] [Accepted: 05/31/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Carpolobia lutea decoction is widely used as a phytotherapeutic against central nervous system-related disorders including insomnia, migraine headache, and mental illness in West and Central Tropical Africa. AIM This study was designed to investigate the antipsychotic activity of Carpolobia lutea (EECL) in mice models of psychosis. METHODS Male Swiss mice (n = 5/group) were given EECL (100, 200, 400, and 800 mg/kg), haloperidol (1 mg/kg), clozapine (5 mg/kg) and vehicle (10 mL/kg) orally before amphetamine (5 mg/kg)-induced hyperlocomotion and stereotypy, apomorphine (2 mg/kg)-induced stereotypy, or ketamine (10, 30, and 100 mg/kg)-induced hyperlocomotion, enhancement of immobility and cognitive impairment. RESULTS EECL (200, 400, and 800 mg/kg) prevented amphetamine- and apomorphine-induced stereotypies, as well as reduced hyperlocomotion induced by amphetamine and ketamine, all of which are predictors of positive symptoms. Regardless of the dose administered, EECL prevented the index of negative symptoms induced by ketamine. Furthermore, higher doses of EECL (400 and 800 mg/kg) also prevented ketamine-induced cognitive impairment, a behavioral phenotype of cognitive symptoms. CONCLUSION Pretreatment with EECL demonstrated antipsychotic activity in mice, preventing amphetamine-, apomorphine-, and ketamine-induced schizophrenia-like symptoms, with 800 mg/kg being the most effective dose.
Collapse
Affiliation(s)
- Noah A Omeiza
- Department of Pharmacology and Therapeutics, Neuropharmacology Unit, College of Medicine, University of Ibadan, Ibadan, Nigeria.
| | - Adewale G Bakre
- Department of Pharmacology and Therapeutics, Neuropharmacology Unit, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Halimat A Abdulrahim
- Department of Medical Biochemistry, College of Health Sciences, University of Ilorin, Ilorin, Nigeria
| | - Happy Isibor
- Department of Pharmacology and Therapeutics, Neuropharmacology Unit, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Precious U Ezurike
- Department of Pharmacology and Therapeutics, Neuropharmacology Unit, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Abimbola A Sowunmi
- Department of Pharmacology and Therapeutics, Neuropharmacology Unit, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Benneth Ben-Azu
- Department of Pharmacology, Faculty of Basic Medical Sciences, Delta State University, Abraka, Nigeria
| | - Adegbuyi O Aderibigbe
- Department of Pharmacology and Therapeutics, Neuropharmacology Unit, College of Medicine, University of Ibadan, Ibadan, Nigeria
| |
Collapse
|
6
|
Chien YL, Lin HY, Tung YH, Hwang TJ, Chen CL, Wu CS, Shang CY, Hwu HG, Tseng WYI, Liu CM, Gau SSF. Neurodevelopmental model of schizophrenia revisited: similarity in individual deviation and idiosyncrasy from the normative model of whole-brain white matter tracts and shared brain-cognition covariation with ADHD and ASD. Mol Psychiatry 2022; 27:3262-3271. [PMID: 35794186 DOI: 10.1038/s41380-022-01636-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 05/08/2022] [Accepted: 05/18/2022] [Indexed: 11/09/2022]
Abstract
The neurodevelopmental model of schizophrenia is supported by multi-level impairments shared among schizophrenia and neurodevelopmental disorders. Despite schizophrenia and typical neurodevelopmental disorders, i.e., autism spectrum disorder (ASD) and attention-deficit/hyperactivity disorder (ADHD), as disorders of brain dysconnectivity, no study has ever elucidated whether whole-brain white matter (WM) tracts integrity alterations overlap or diverge between these three disorders. Moreover, whether the linked dimensions of cognition and brain metrics per the Research Domain Criteria framework cut across diagnostic boundaries remains unknown. We aimed to map deviations from normative ranges of whole-brain major WM tracts for individual patients to investigate the similarity and differences among schizophrenia (281 patients subgrouped into the first-episode, subchronic and chronic phases), ASD (175 patients), and ADHD (279 patients). Sex-specific WM tract normative development was modeled from diffusion spectrum imaging of 626 typically developing controls (5-40 years). There were three significant findings. First, the patterns of deviation and idiosyncrasy of WM tracts were similar between schizophrenia and ADHD alongside ASD, particularly at the earlier stages of schizophrenia relative to chronic stages. Second, using the WM deviation patterns as features, schizophrenia cannot be separated from neurodevelopmental disorders in the unsupervised machine learning algorithm. Lastly, the canonical correlation analysis showed schizophrenia, ADHD, and ASD shared linked cognitive dimensions driven by WM deviations. Together, our results provide new insights into the neurodevelopmental facet of schizophrenia and its brain basis. Individual's WM deviations may contribute to diverse arrays of cognitive function along a continuum with phenotypic expressions from typical neurodevelopmental disorders to schizophrenia.
Collapse
Affiliation(s)
- Yi-Ling Chien
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan
| | - Hsiang-Yuan Lin
- Azrieli Adult Neurodevelopmental Centre and Adult Neurodevelopmental and Geriatric Psychiatry Division, Centre for Addiction and Mental Health, Department of Psychiatry, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Yu-Hung Tung
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Tzung-Jeng Hwang
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan.,Graduate Institute of Brain and Mind Sciences, National Taiwan University College of Medicine, Taipei, Taiwan.,Neurobiology & Cognitive Science Center, National Taiwan University, Taipei, Taiwan
| | - Chang-Le Chen
- Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chi-Shin Wu
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan
| | - Chi-Yung Shang
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan
| | - Hai-Gwo Hwu
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan
| | - Wen-Yih Isaac Tseng
- Graduate Institute of Brain and Mind Sciences, National Taiwan University College of Medicine, Taipei, Taiwan. .,Neurobiology & Cognitive Science Center, National Taiwan University, Taipei, Taiwan. .,Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei, Taiwan.
| | - Chih-Min Liu
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan.
| | - Susan Shur-Fen Gau
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan. .,Graduate Institute of Brain and Mind Sciences, National Taiwan University College of Medicine, Taipei, Taiwan. .,Neurobiology & Cognitive Science Center, National Taiwan University, Taipei, Taiwan.
| |
Collapse
|
7
|
Gershon ES, Lee SH, Zhou X, Sweeney JA, Tamminga C, Pearlson GA, Clementz BA, Keshavan MS, Alliey-Rodriguez N, Hudgens-Haney M, Keedy SK, Glahn DC, Asif H, Lencer R, Hill SK. An opportunity for primary prevention research in psychotic disorders. Schizophr Res 2022; 243:433-439. [PMID: 34315649 PMCID: PMC8784565 DOI: 10.1016/j.schres.2021.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 04/29/2021] [Accepted: 07/01/2021] [Indexed: 10/20/2022]
Abstract
An opportunity has opened for research into primary prevention of psychotic disorders, based on progress in endophenotypes, genetics, and genomics. Primary prevention requires reliable prediction of susceptibility before any symptoms are present. We studied a battery of measures where published data supports abnormalities of these measurements prior to appearance of initial psychosis symptoms. These neurobiological and behavioral measurements included cognition, eye movement tracking, Event Related Potentials, and polygenic risk scores. They generated an acceptably precise separation of healthy controls from outpatients with a psychotic disorder. METHODS: The Bipolar and Schizophrenia Network on Intermediate Phenotypes (B-SNIP) measured this battery in an ancestry-diverse series of consecutively recruited adult outpatients with a psychotic disorder and healthy controls. Participants include all genders, 16 to 50 years of age, 261 with psychotic disorders (Schizophrenia (SZ) 109, Bipolar with psychosis (BPP) 92, Schizoaffective disorder (SAD) 60), 110 healthy controls. Logistic Regression, and an extension of the Linear Mixed Model to include analysis of pairwise interactions between measures (Environmental kernel Relationship Matrices (ERM)) with multiple iterations, were performed to predict case-control status. Each regression analysis was validated with four-fold cross-validation. RESULTS AND CONCLUSIONS: Sensitivity, specificity, and Area Under the Curve of Receiver Operating Characteristic of 85%, 62%, and 86%, respectively, were obtained for both analytic methods. These prediction metrics demonstrate a promising diagnostic distinction based on premorbid risk variables. There were also statistically significant pairwise interactions between measures in the ERM model. The strong prediction metrics of both types of analytic model provide proof-of-principle for biologically-based laboratory tests as a first step toward primary prevention studies. Prospective studies of adolescents at elevated risk, vs. healthy adolescent controls, would be a next step toward development of primary prevention strategies.
Collapse
Affiliation(s)
- Elliot S Gershon
- University of Chicago, Department of Psychiatry, United States of America; University of Chicago, Department of Human Genetics, United States of America.
| | - S Hong Lee
- Australian Centre for Precision Health, University of South Australia Cancer Research Institute, University of South Australia, Adelaide, SA 5000, Australia; UniSA: Allied Health and Human Performance, University of South Australia, Adelaide, SA 5000, Australia; South Australian Health and Medical Research Institute, Adelaide, South Australia 5000, Australia.
| | - Xuan Zhou
- Australian Centre for Precision Health, University of South Australia Cancer Research Institute, University of South Australia, Adelaide, SA 5000, Australia; UniSA: Allied Health and Human Performance, University of South Australia, Adelaide, SA 5000, Australia; South Australian Health and Medical Research Institute, Adelaide, South Australia 5000, Australia.
| | - John A Sweeney
- University of Cincinnati, Department of Psychiatry United States of America, Sichuan University, Hauxi Center for MR Research, China.
| | - Carol Tamminga
- University of Texas Southwestern, United States of America.
| | | | | | | | | | | | | | - David C Glahn
- Harvard Medical School, Boston Children's Hospital, United States of America.
| | - Huma Asif
- University of Chicago, United States of America.
| | - Rebekka Lencer
- University of Muenster, Muenster, Germany; Department of Psychiatry and Psychotherapy, University of Luebeck, Luebeck, Germany.
| | - S Kristian Hill
- Rosalind Franklin University of Medicine and Science, United States of America.
| |
Collapse
|
8
|
Maggini C, Dalle Luche R. An overview on Hebephrenia, a diagnostic cornerstone in the neurodevelopmental model of Schizophrenia. HISTORY OF PSYCHIATRY 2022; 33:34-46. [PMID: 35000477 DOI: 10.1177/0957154x211062534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Pre-Kraepelinian observations converged in Kahlbaum's and Hecker's description of Hebephrenia. For Kraepelin, Hebephrenia was an 'idiopathic incurable dementia whose onset is in adolescence'. It became the core of 'Dementia Praecox', and then Bleulerian 'Schizophrenia'. In recent decades, the resurgence of the 'late neurodevelopment' hypothesis of schizophrenia has brought into focus Hecker's clinical reports of adolescents who, as a result of a putative loss of psychic energy, showed a rapidly progressive cognitive impairment leading to functional and behavioural disorganization. This paper summarizes the nineteenth-century conceptualization of Hebephrenia as a developmental illness.
Collapse
|
9
|
Priol AC, Denis L, Boulanger G, Thépaut M, Geoffray MM, Tordjman S. Detection of Morphological Abnormalities in Schizophrenia: An Important Step to Identify Associated Genetic Disorders or Etiologic Subtypes. Int J Mol Sci 2021; 22:ijms22179464. [PMID: 34502372 PMCID: PMC8430486 DOI: 10.3390/ijms22179464] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 08/06/2021] [Indexed: 12/20/2022] Open
Abstract
Current research suggests that alterations in neurodevelopmental processes, involving gene X environment interactions during key stages of brain development (prenatal period and adolescence), are a major risk for schizophrenia. First, epidemiological studies supporting a genetic contribution to schizophrenia are presented in this article, including family, twin, and adoption studies. Then, an extensive literature review on genetic disorders associated with schizophrenia is reviewed. These epidemiological findings and clinical observations led researchers to conduct studies on genetic associations in schizophrenia, and more specifically on genomics (CNV: copy-number variant, and SNP: single nucleotide polymorphism). The main structural (CNV) and sequence (SNP) variants found in individuals with schizophrenia are reported here. Evidence of genetic contributions to schizophrenia and current knowledge on genetic syndromes associated with this psychiatric disorder highlight the importance of a clinical genetic examination to detect minor physical anomalies in individuals with ultra-high risk of schizophrenia. Several dysmorphic features have been described in schizophrenia, especially in early onset schizophrenia, and can be viewed as neurodevelopmental markers of vulnerability. Early detection of individuals with neurodevelopmental abnormalities is a fundamental issue to develop prevention and diagnostic strategies, therapeutic intervention and follow-up, and to ascertain better the underlying mechanisms involved in the pathophysiology of schizophrenia.
Collapse
Affiliation(s)
- Anne-Clémence Priol
- Pôle Hospitalo-Universitaire de Psychiatrie de l’Enfant et de l’Adolescent (PHUPEA), Centre Hospitalier Guillaume Régnier, University of Rennes 1, 35000 Rennes, France; (L.D.); (G.B.); (M.T.)
- Correspondence: (A.-C.P.); (S.T.); Tel.: +33-2-99-51-06-04 (A.-C.P. & S.T.); Fax: +33-2-99-32-46-98 (A.-C.P. & S.T.)
| | - Laure Denis
- Pôle Hospitalo-Universitaire de Psychiatrie de l’Enfant et de l’Adolescent (PHUPEA), Centre Hospitalier Guillaume Régnier, University of Rennes 1, 35000 Rennes, France; (L.D.); (G.B.); (M.T.)
| | - Gaella Boulanger
- Pôle Hospitalo-Universitaire de Psychiatrie de l’Enfant et de l’Adolescent (PHUPEA), Centre Hospitalier Guillaume Régnier, University of Rennes 1, 35000 Rennes, France; (L.D.); (G.B.); (M.T.)
| | - Mathieu Thépaut
- Pôle Hospitalo-Universitaire de Psychiatrie de l’Enfant et de l’Adolescent (PHUPEA), Centre Hospitalier Guillaume Régnier, University of Rennes 1, 35000 Rennes, France; (L.D.); (G.B.); (M.T.)
| | - Marie-Maude Geoffray
- Department of Child and Adolescent Psychiatry, Centre Hospitalier Le Vinatier, 69500 Bron, France;
| | - Sylvie Tordjman
- Pôle Hospitalo-Universitaire de Psychiatrie de l’Enfant et de l’Adolescent (PHUPEA), Centre Hospitalier Guillaume Régnier, University of Rennes 1, 35000 Rennes, France; (L.D.); (G.B.); (M.T.)
- CIC (Clinical Investigation Center) 1414 Inserm, Centre Hospitalier Universitaire (CHU) de Rennes, University of Rennes 1, 35033 Rennes, France
- Integrative Neuroscience and Cognition Center (INCC), CNRS UMR 8002, University of Paris, 75006 Paris, France
- Correspondence: (A.-C.P.); (S.T.); Tel.: +33-2-99-51-06-04 (A.-C.P. & S.T.); Fax: +33-2-99-32-46-98 (A.-C.P. & S.T.)
| |
Collapse
|
10
|
YILDIRIM F, TOROS F, KARPUZ D. Comparison of psychopathologies of children of Parents with Chronic Psychiatric Disease. ACTA MEDICA ALANYA 2021. [DOI: 10.30565/medalanya.733938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
|
11
|
Reduced cortical gyrification in the posteromedial cortex in unaffected relatives of schizophrenia patients with high genetic loading. NPJ SCHIZOPHRENIA 2021; 7:17. [PMID: 33649350 PMCID: PMC7921641 DOI: 10.1038/s41537-021-00148-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 01/15/2021] [Indexed: 11/08/2022]
Abstract
Although abnormal cortical gyrification has been consistently reported in patients with schizophrenia, whether gyrification abnormalities reflect a genetic risk for the disorder remains unknown. This study investigated differences in cortical gyrification between unaffected relatives (URs) with high genetic loading for schizophrenia and healthy controls (HCs) to identify potential genetic vulnerability markers. A total of 50 URs of schizophrenia patients and 50 matched HCs underwent T1-weighted magnetic resonance imaging to compare whole-brain gyrification using the local gyrification index (lGI). Then, the lGI clusters showing significant differences were compared between the UR subgroups based on the number of first-degree relatives with schizophrenia to identify the effect of genetic loading on cortical gyrification changes. The URs exhibited significantly lower cortical gyrification than the HCs in clusters including medial parieto-occipital and cingulate regions comprising the bilateral precuneus, cuneus, pericalcarine, lingual, isthmus cingulate, and posterior cingulate gyri. Moreover, URs who had two or more first-degree relatives with schizophrenia showed greater gyrification reductions in these clusters than those who had at least one first-degree relative with schizophrenia. Our findings of reduced gyrification in URs, which are consistent with accumulated evidence of hypogyria observed in regions showing patient-control differences in previous studies, highlight that such hypogyria in posteromedial regions may serve as a genetic vulnerability marker and reflect early neurodevelopmental abnormalities resulting from a genetic risk for schizophrenia.
Collapse
|
12
|
Pontillo M, Averna R, Tata MC, Chieppa F, Pucciarini ML, Vicari S. Neurodevelopmental Trajectories and Clinical Profiles in a Sample of Children and Adolescents With Early- and Very-Early-Onset Schizophrenia. Front Psychiatry 2021; 12:662093. [PMID: 34603093 PMCID: PMC8481627 DOI: 10.3389/fpsyt.2021.662093] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 08/06/2021] [Indexed: 11/17/2022] Open
Abstract
Schizophrenia before the age of 18 years is usually divided into two categories. Early-onset schizophrenia (EOS) presents between the ages of 13 and 17 years, whereas very-early-onset schizophrenia (VEOS) presents at or before the age of 12 years. Previous studies have found that neurodevelopmental difficulties in social, motor, and linguistic domains are commonly observed in VEOS/EOS patients. Recent research has also shown a high prevalence of neurodevelopmental disorders (e.g., intellectual disability, communication disorders, autism spectrum disorder, neurodevelopmental motor disorders) in VEOS/EOS patients, indicating genetic overlap between these conditions. These findings lend support to the neurodevelopmental continuum model, which holds that childhood neurodevelopmental disorders and difficulties and psychiatric disorders (e.g., schizophrenia) fall on an etiological and neurodevelopmental continuum, and should not be considered discrete entities. Based on this literature, in this study we focused on the overlap between neurodevelopmental disorders and schizophrenia investigating, in a large sample (N = 230) of VEOS/EOS children and adolescents, the clinical differences, at the onset of psychosis, between VEOS/EOS with neurodevelopmental disorder or neurodevelopmental difficulties and VEOS/EOS with no diagnosed neurodevelopmental disorder or neurodevelopmental difficulties. The findings showed that, in children and adolescents with a neurodevelopmental disorder or neurodevelopmental difficulties, psychosis onset occurred at an earlier age, was associated with more severe functional impairment (e.g., global, social, role), and was characterized by positive symptoms (e.g., grandiose ideas, perceptual abnormalities, disorganized communication) and disorganized symptoms (e.g., odd behavior or appearance, bizarre thinking). Instead, in children and adolescents without a neurodevelopmental disorder or neurodevelopmental difficulties, psychosis onset was mainly characterized by negative symptomatology (e.g., social anhedonia, avolition, expression of emotion, experience of emotions and self, ideational richness). Given these differences, the presence of a neurodevelopmental disorder or neurodevelopmental difficulties should be carefully investigated and integrated early into the assessment and treatment plan for VEOS/EOS patients.
Collapse
Affiliation(s)
- Maria Pontillo
- Child and Adolescent Neuropsychiatry Unit, Department of Neuroscience, Children Hospital Bambino Gesù, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Roberto Averna
- Child and Adolescent Neuropsychiatry Unit, Department of Neuroscience, Children Hospital Bambino Gesù, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Maria Cristina Tata
- Child and Adolescent Neuropsychiatry Unit, Department of Neuroscience, Children Hospital Bambino Gesù, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Fabrizia Chieppa
- Department of Life Sciences and Public Health, Catholic University of the Sacred Heart, Rome, Italy
| | - Maria Laura Pucciarini
- Child and Adolescent Neuropsychiatry Unit, Department of Neuroscience, Children Hospital Bambino Gesù, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Stefano Vicari
- Child and Adolescent Neuropsychiatry Unit, Department of Neuroscience, Children Hospital Bambino Gesù, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy.,Department of Life Sciences and Public Health, Catholic University of the Sacred Heart, Rome, Italy
| |
Collapse
|
13
|
Olashore AA, Paruk S, Ogunjumo JA, Ogundipe RM. Attention-deficit hyperactivity disorder in school-age children in Gaborone, Botswana: Comorbidity and risk factors. S Afr J Psychiatr 2020; 26:1525. [PMID: 33240552 PMCID: PMC7670025 DOI: 10.4102/sajpsychiatry.v26i0.1525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 08/05/2020] [Indexed: 11/12/2022] Open
Abstract
Background Attention deficit hyperactivity disorder (ADHD) is one of the most common neurodevelopmental disorders in children. Its occurrence and pattern of presentation are unknown in Botswana. Aim To determine the prevalence of attention-deficit hyperactivity disorder (ADHD), associated comorbid conditions and risk factors amongst school-age children in Botswana. Setting Primary schools in Gaborone, Botswana. Methods This study used a cross-sectional design. A two-stage random sampling technique was utilised to select learners from 25 out of the 29 public schools in the city. The Vanderbilt ADHD Diagnostic Rating Scale (VADRS), teacher and parent versions, was administered. Results Of the 1737 children, 50.9% (n = 884) were male, and their mean age was 9.53 years (s.d. = 1.97). The prevalence of ADHD was 12.3% (n = 213). The most prevalent presentation was the predominantly inattentive, 7.2% (n = 125). A family history of mental illness (odds ratio [OR] = 6.59, 95% CI: 1.36–32.0) and perinatal complications (OR = 2.16, 95% CI: 1.08–4.29) emerged as the independent predictors of ADHD. Conclusions The prevalence of ADHD in Botswana is slightly higher than that reported in the literature, but the pattern of presentations and comorbidities is similar. A positive family history of mental illness and perinatal complications independently predicted ADHD. Mental health screening amongst families of the affected individuals and improved perinatal care should be considered as health care priorities in Botswana.
Collapse
Affiliation(s)
- Anthony A Olashore
- Department of Psychiatry, Faculty of Medicine, University of Botswana, Gaborone, Botswana
| | - Saeeda Paruk
- Department of Psychiatry, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban South Africa
| | - John A Ogunjumo
- Department of Family Medicine, Faculty of Medicine, University of Botswana, Gaborone, Botswana
| | - Radiance M Ogundipe
- Department of Family Medicine, Faculty of Medicine, University of Botswana, Gaborone, Botswana
| |
Collapse
|
14
|
Xi C, Liu ZN, Yang J, Zhang W, Deng MJ, Pan YZ, Cheng YQ, Pu WD. Schizophrenia patients and their healthy siblings share decreased prefronto-thalamic connectivity but not increased sensorimotor-thalamic connectivity. Schizophr Res 2020; 222:354-361. [PMID: 32507372 DOI: 10.1016/j.schres.2020.04.033] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 04/12/2020] [Accepted: 04/26/2020] [Indexed: 12/12/2022]
Abstract
The pattern of decreased prefronto-thalamic connectivity and increased sensorimotor-thalamic connectivity has been consistently documented in schizophrenia. However, whether this thalamo-cortical abnormality pattern is of genetic predisposition remains unknown. The present study for the first time aimed to investigate the common and distinct characteristics of this circuit in schizophrenia patients and their unaffected siblings who share half of the patient's genotype. Totally 293 participants were recruited into this study including 94 patients with schizophrenia, 96 their healthy siblings, and 103 healthy controls scanned using gradient-echo echo-planar imaging at rest. By using a fine-grained atlas of thalamus with 16 sub-regions, we mapped the thalamocortical network in three groups. Decreased thalamo-prefronto-cerebellar connectivity was shared between schizophrenia and their healthy siblings, but increased sensorimotor-thalamic connectivity was only found in schizophrenia. The shared thalamo-prefronto-cerebellar dysconnectivity showed an impressively gradient reduction pattern in patients and siblings comparing to controls: higher in the controls, lower in the patients and intermediate in the siblings. Anatomically, the decreased thalamic connectivity mostly centered on the pre-frontal thalamic subregions locating at the mediodorsal nucleus, while the increased functional connectivity with sensorimotor cortices was only observed in the caudal temporal thalamic subregion anchoring at the dorsal and ventral lateral nuclei. Moreover, both decreased thalamo-prefronto-cerebellar connectivity and increased sensorimotor-thalamic connectivity were related to clinical symptoms in patients. Our findings extend the evidence that the decreased thalamo-prefronto-cerebellar connectivity may be related to the high genetic risk in schizophrenia, while increased sensorimotor-thalamic connectivity potentially represents a neural biomarker for this severe mental disorder.
Collapse
Affiliation(s)
- Chang Xi
- Medical Psychological Center, The Second Xiangya Hospital, Central South University, Changsha 410011, China; Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, China; Mental Health Institute of the Second Xiangya Hospital, Central South University, Changsha, China; The China National Clinical Research Center for Mental Health Disorders, Changsha, China
| | - Zhe-Ning Liu
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, China; Mental Health Institute of the Second Xiangya Hospital, Central South University, Changsha, China; The China National Clinical Research Center for Mental Health Disorders, Changsha, China
| | - Jie Yang
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, China; Mental Health Institute of the Second Xiangya Hospital, Central South University, Changsha, China; The China National Clinical Research Center for Mental Health Disorders, Changsha, China
| | - Wen Zhang
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, China; Mental Health Institute of the Second Xiangya Hospital, Central South University, Changsha, China; The China National Clinical Research Center for Mental Health Disorders, Changsha, China
| | - Meng-Jie Deng
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, China; Mental Health Institute of the Second Xiangya Hospital, Central South University, Changsha, China; The China National Clinical Research Center for Mental Health Disorders, Changsha, China
| | - Yun-Zhi Pan
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, China; Mental Health Institute of the Second Xiangya Hospital, Central South University, Changsha, China; The China National Clinical Research Center for Mental Health Disorders, Changsha, China
| | - Yu-Qi Cheng
- Department of Psychiatry, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Wei-Dan Pu
- Medical Psychological Center, The Second Xiangya Hospital, Central South University, Changsha 410011, China; The China National Clinical Research Center for Mental Health Disorders, Changsha, China.
| |
Collapse
|
15
|
Gin K, Stewart C, Jolley S. A systematic literature review of childhood externalizing psychopathology and later psychotic symptoms. Clin Psychol Psychother 2020; 28:56-78. [DOI: 10.1002/cpp.2493] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 07/17/2020] [Accepted: 07/17/2020] [Indexed: 01/13/2023]
Affiliation(s)
- Kimberley Gin
- King's College London, Department of Psychology Institute of Psychiatry Psychology and Neuroscience London UK
| | - Catherine Stewart
- South London and Maudsley NHS Foundation Trust United Kingdom of Great Britain and Northern Ireland London UK
| | - Suzanne Jolley
- King's College London, Department of Psychology Institute of Psychiatry Psychology and Neuroscience London UK
| |
Collapse
|
16
|
Anteraper SA, Collin G, Guell X, Scheinert T, Molokotos E, Henriksen MT, Mesholam-Gately R, Thermenos HW, Seidman LJ, Keshavan MS, Gabrieli JDE, Whitfield-Gabrieli S. Altered resting-state functional connectivity in young children at familial high risk for psychotic illness: A preliminary study. Schizophr Res 2020; 216:496-503. [PMID: 31801673 PMCID: PMC7239744 DOI: 10.1016/j.schres.2019.09.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 09/09/2019] [Accepted: 09/12/2019] [Indexed: 01/05/2023]
Abstract
Multiple lines of evidence suggest that illness development in schizophrenia and other psychotic disorders predates the first psychotic episode by many years. In this study, we examined a sample of 15 pre-adolescent children, ages 7 through 12 years, who are at familial high-risk (FHR) because they have a parent or sibling with a history of schizophrenia or related psychotic disorder. Using multi-voxel pattern analysis (MVPA), a data-driven fMRI analysis, we assessed whole-brain differences in functional connectivity in the FHR sample as compared to an age- and sex-matched control (CON) group of 15 children without a family history of psychosis. MVPA analysis yielded a single cluster in right posterior superior temporal gyrus (pSTG/BA 22) showing significant group-differences in functional connectivity. Post-hoc characterization of this cluster through seed-to-voxel analysis revealed mostly reduced functional connectivity of the pSTG seed to a set of language and default mode network (DMN) associated brain regions including Heschl's gyrus, inferior temporal gyrus extending into fusiform gyrus, (para)hippocampus, thalamus, and a cerebellar cluster encompassing mainly Crus I/II. A height-threshold of whole-brain p < .001 (two-sided), and FDR-corrected cluster-threshold of p < .05 (non-parametric statistics) was used for post-hoc characterization. These findings suggest that abnormalities in functional communication in a network encompassing right STG and associated brain regions are present before adolescence in at-risk children and may be a risk marker for psychosis. Subsequent changes in this functional network across development may contribute to either disease manifestation or resilience in children with a familial vulnerability for psychosis.
Collapse
Affiliation(s)
- Sheeba Arnold Anteraper
- McGovern Institute for Brain Research, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA; Department of Psychology, Northeastern University, Boston, MA, USA; Alan and Lorraine Bressler Clinical and Research Program for Autism Spectrum Disorder, Massachusetts General Hospital, Boston, MA, USA.
| | - Guusje Collin
- McGovern Institute for Brain Research, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA,Department of Psychiatry, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA,Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA,Corresponding author
| | - Xavier Guell
- McGovern Institute for Brain Research, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA,Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Timothy Scheinert
- Department of Psychiatry, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Elena Molokotos
- Department of Psychiatry, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Maria Toft Henriksen
- Department of Psychiatry, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Raquelle Mesholam-Gately
- Department of Psychiatry, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Heidi W. Thermenos
- Department of Psychiatry, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Larry J Seidman
- Department of Psychiatry, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Matcheri S. Keshavan
- Department of Psychiatry, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - John D. E. Gabrieli
- McGovern Institute for Brain Research, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Susan Whitfield-Gabrieli
- McGovern Institute for Brain Research, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA,Department of Psychology, Northeastern University, Boston, MA, USA
| |
Collapse
|
17
|
Kelly S, Guimond S, Lyall A, Stone WS, Shenton ME, Keshavan M, Seidman LJ. Neural correlates of cognitive deficits across developmental phases of schizophrenia. Neurobiol Dis 2018; 131:104353. [PMID: 30582983 DOI: 10.1016/j.nbd.2018.12.013] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Revised: 11/21/2018] [Accepted: 12/20/2018] [Indexed: 12/28/2022] Open
Abstract
Schizophrenia is associated with cognitive deficits across all stages of the illness (i.e., high risk, first episode, early and chronic phases). Identifying the underlying neurobiological mechanisms of these deficits is an important area of scientific inquiry. Here, we selectively review evidence regarding the pattern of deficits across the developmental trajectory of schizophrenia using the five cognitive domains identified by the Research Domain Criteria (RDoC) initiative. We also report associated findings from neuroimaging studies. We suggest that most cognitive domains are affected across the developmental trajectory, with corresponding brain structural and/or functional differences. The idea of a common mechanism driving these deficits is discussed, along with implications for cognitive treatment in schizophrenia.
Collapse
Affiliation(s)
- Sinead Kelly
- Massachusetts Mental Health Center, Public Psychiatry Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Synthia Guimond
- Massachusetts Mental Health Center, Public Psychiatry Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; The Royal's Institute of Mental Health Research, University of Ottawa, Ottawa, ON, Canada
| | - Amanda Lyall
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - William S Stone
- Massachusetts Mental Health Center, Public Psychiatry Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Martha E Shenton
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA; Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; VA Boston Healthcare System, Brockton Division, Brockton, MA, USA
| | - Matcheri Keshavan
- Massachusetts Mental Health Center, Public Psychiatry Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
| | - Larry J Seidman
- Massachusetts Mental Health Center, Public Psychiatry Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| |
Collapse
|
18
|
Tahir RA, Wu H, Javed N, Khalique A, Khan SAF, Mir A, Ahmed MS, Barreto GE, Qing H, Ashraf GM, Sehgal SA. Pharmacoinformatics and molecular docking reveal potential drug candidates against Schizophrenia to target TAAR6. J Cell Physiol 2018; 234:13263-13276. [PMID: 30569503 DOI: 10.1002/jcp.27999] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 11/30/2018] [Indexed: 11/10/2022]
Abstract
Schizophrenia (SZ) is a complex disabling disorder that leads to the mental disability and afflicts 1% of the world's total population and placed in top ten medical disorders. In current work, bioinformatics analyses were carried out on Trace amine (TA)-associated receptor 6 (TAAR6) to recognize the potential drugs and compounds against SZ. Comparative modeling and threading-based approaches were utilized for the structure prediction of TAAR6. Fifty-nine predicted structures were evaluated by various model assessment techniques and final model having only eight amino acids in the outlier region and 98.5% overall quality factor was chosen for further pharmacoinformatics and molecular docking analyses. From an extensive literature review, 11 Food and Drug Administration (FDA) approved drugs were analyzed by computational techniques and Aripiprazole was found as the most effective drug against SZ by targeting TAAR6. Here, we report five novel molecules which exhibited the highest binding affinity, effective drug properties, and interestingly, observed better results than the approved selected drugs against SZ by targeting TAAR6. The docking analyses revealed that Arg-92, Trp-98, Gln-191, Thr-192, Ala-290, Cys-291, Tyr-293, and Glu-294 residues were observed as critical interacting residues in receptor-ligand interactions. Absorption, distribution, metabolism, excretion, and toxicity (ADMET) properties, Lipinski rule of five, highest binding affinity coupled with virtual screening (VS), and pharmacophore modeling approach illustrated that aripiprazole (-8.6 kcal/mol) and TAAR6_0094 (-9.3 kcal/mol) are potential inhibitors for targeting TAAR6. It is suggested that schizophrenic patients have to use Aripiprazole for the medication of SZ by targeting TAAR6 and develop effective therapies by utilizing scrutinized novel compound.
Collapse
Affiliation(s)
- Rana Adnan Tahir
- Key Laboratory of Molecular Medicine and Biotherapy in the Ministry of Industry and Information Technology, Department of Biology, School of Life Sciences, Beijing Institute of Technology, Beijing, China.,Department of Biosciences, COMSATS University Islamabad, Sahiwal Campus, Islamabad, Pakistan
| | - Hao Wu
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Naima Javed
- Department of Biosciences, COMSATS University Islamabad, Sahiwal Campus, Islamabad, Pakistan
| | - Anila Khalique
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | | | - Asif Mir
- Department of Bioinformatics and Biotechnology, International Islamic University Islamabad, Islamabad, Pakistan
| | - Muhammad Saad Ahmed
- Department of Biological Engineering/Institute of Biotransformation and Synthetic Biosystem, School of Life Sciences, Beijing Institute of Technology, Beijing, China
| | - George E Barreto
- Departamento de Nutrición y Bioquímica, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Hong Qing
- Key Laboratory of Molecular Medicine and Biotherapy in the Ministry of Industry and Information Technology, Department of Biology, School of Life Sciences, Beijing Institute of Technology, Beijing, China
| | - Ghulam Md Ashraf
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Sheikh Arslan Sehgal
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Department of Biosciences, COMSATS University Islamabad, Sahiwal Campus, Islamabad, Pakistan.,University of Chinese Academy of Sciences, Beijing, China
| |
Collapse
|
19
|
Mistry S, Harrison JR, Smith DJ, Escott-Price V, Zammit S. The use of polygenic risk scores to identify phenotypes associated with genetic risk of schizophrenia: Systematic review. Schizophr Res 2018; 197:2-8. [PMID: 29129507 DOI: 10.1016/j.schres.2017.10.037] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 10/27/2017] [Accepted: 10/28/2017] [Indexed: 12/12/2022]
Abstract
Studying the phenotypic manifestations of increased genetic liability for schizophrenia can increase our understanding of this disorder. Specifically, information from alleles identified in genome-wide association studies can be collapsed into a polygenic risk score (PRS) to explore how genetic risk is manifest within different samples. In this systematic review, we provide a comprehensive assessment of studies examining associations between schizophrenia PRS (SZ-PRS) and several phenotypic measures. We searched EMBASE, Medline and PsycINFO (from August 2009-14th March 2016) plus references of included studies, following PRISMA guidelines. Study inclusion was based on predetermined criteria and data were extracted independently and in duplicate. Overall, SZ-PRS was associated with increased risk for psychiatric disorders such as depression and bipolar disorder, lower performance IQ and negative symptoms. SZ-PRS explained up to 6% of genetic variation in psychiatric phenotypes, compared to <0.7% in measures of cognition. Future gains from using the PRS approach may be greater if used for examining phenotypes that are more closely related to biological substrates, for scores based on gene-pathways, and where PRSs are used to stratify individuals for study of treatment response. As it was difficult to interpret findings across studies due to insufficient information provided by many studies, we propose a framework to guide robust reporting of PRS associations in the future.
Collapse
Affiliation(s)
- Sumit Mistry
- Institute of Psychological Medicine and Clinical Neurosciences, MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, UK.
| | - Judith R Harrison
- Institute of Psychological Medicine and Clinical Neurosciences, MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, UK
| | - Daniel J Smith
- Institute of Health and Wellbeing, 1 Lilybank Gardens, University of Glasgow, UK
| | - Valentina Escott-Price
- Institute of Psychological Medicine and Clinical Neurosciences, MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, UK
| | - Stanley Zammit
- Institute of Psychological Medicine and Clinical Neurosciences, MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, UK; Centre for Academic Mental Health, School of Social and Community Medicine, University of Bristol, UK
| |
Collapse
|
20
|
Balz J, Roa Romero Y, Keil J, Schubert F, Ittermann B, Mekle R, Montag C, Gallinat J, Senkowski D. Glutamate Concentration in the Superior Temporal Sulcus Relates to Neuroticism in Schizophrenia. Front Psychol 2018; 9:578. [PMID: 29867621 PMCID: PMC5949567 DOI: 10.3389/fpsyg.2018.00578] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 04/05/2018] [Indexed: 11/13/2022] Open
Abstract
Clinical studies suggest aberrant neurotransmitter concentrations in the brains of patients with schizophrenia (SCZ). Numerous studies have indicated deviant glutamate concentrations in SCZ, although the findings are inconsistent. Moreover, alterations in glutamate concentrations could be linked to personality traits in SCZ. Here, we examined the relationships between personality dimensions and glutamate concentrations in a voxel encompassing the occipital cortex (OCC) and another voxel encompassing the left superior temporal sulcus (STS). We used proton magnetic resonance spectroscopy to examine glutamate concentrations in the OCC and the STS in 19 SCZ and 21 non-psychiatric healthy control (HC) participants. Personality dimensions neuroticism, extraversion, openness, agreeableness and conscientiousness were assessed using the NEO-FFI questionnaire. SCZ compared to HC showed higher glutamate concentrations in the STS, reduced extraversion scores, and enhanced neuroticism scores. No group differences were observed for the other personality traits and for glutamate concentrations in the OCC. For the SCZ group, glutamate concentrations in STS were negatively correlated with the neuroticism scores [r = -0.537, p = 0.018] but this was not found in HC [r(19) = 0.011, p = 0.962]. No other significant correlations were found. Our study showed an inverse relationship between glutamate concentrations in the STS and neuroticism scores in SCZ. Elevated glutamate in the STS might serve as a compensatory mechanism that enables patients with enhanced concentrations to control and prevent the expression of neuroticism.
Collapse
Affiliation(s)
- Johanna Balz
- Department of Psychiatry and Psychotherapy, St. Hedwig Hospital, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Yadira Roa Romero
- Department of Psychiatry and Psychotherapy, St. Hedwig Hospital, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Julian Keil
- Department of Biological Psychology, Christian-Albrechts-University Kiel, Kiel, Germany
| | | | | | - Ralf Mekle
- Center for Stroke Research Berlin, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Christiane Montag
- Department of Psychiatry and Psychotherapy, St. Hedwig Hospital, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Jürgen Gallinat
- Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Daniel Senkowski
- Department of Psychiatry and Psychotherapy, St. Hedwig Hospital, Charité - Universitätsmedizin Berlin, Berlin, Germany
| |
Collapse
|
21
|
Omel'chenko MA, Rumyantsev AO, Kaleda VG. [The dynamics of psychopathological symptoms of ultra high risk for psychosis in young patients with non-psychotic mental disorders]. Zh Nevrol Psikhiatr Im S S Korsakova 2018; 116:16-21. [PMID: 27029442 DOI: 10.17116/jnevro20161162116-21] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Based on the results of 5-year follow-up study, to describe the dynamics of psychopathological symptoms in young patients with non-psychotic forms of mental diseases met the criteria of ultra-high risk for schizophrenia who received preventive psychopharmacotherapy. MATERIAL AND METHODS The study included 32 young men, aged 16--25 years, presented with the symptoms of ultra-high risk of schizophrenia during the first hospitalization in 2009--2011. Follow-up was carried out in 2014--2015 (mean follow-up 5.79±0.36 years). According to ICD-10, patients were stratified into 3 groups: mood disorders, personality disorders and schizotypal disorders. RESULTS AND CONCLUSION According to the characteristics of subsequent development of these disorders, four types were singled out: mechanisms of the development of acute sensitive delusions (I), interpretative delusions (II), catatonic disorganization (III) and cognitive disorders pathognomonic for schizophrenia spectrum disorders (IV). Correlations between these types and nosologic disorders and their different reversibility under treatment were found. These types can be considered as predictors of outcome over the follow-up period.
Collapse
|
22
|
Evans DW, Lusk LG, Slane MM, Michael AM, Myers SM, Uljarević M, Mason O, Claridge G, Frazier T. Dimensional assessment of schizotypal, psychotic, and other psychiatric traits in children and their parents: development and validation of the Childhood Oxford-Liverpool Inventory of Feelings and Experiences on a representative US sample. J Child Psychol Psychiatry 2018; 59:574-585. [PMID: 29083029 PMCID: PMC6427825 DOI: 10.1111/jcpp.12827] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/31/2017] [Indexed: 01/13/2023]
Abstract
BACKGROUND Healthy functioning relies on a variety of perceptual, cognitive, emotional, and behavioral abilities that are distributed throughout the normal population. Variation in these traits define the wide range of neurodevelopmental (NDD) and neuropsychiatric (NPD) disorders. Here, we introduce a new measure for assessing these traits in typically developing children and children at risk for NDD and NPD from age 2 to 18 years. METHOD The Childhood Oxford-Liverpool Inventory of Feelings and Experiences (CO-LIFE) was created as a dimensional, parent-report measure of schizotypal and psychotic traits in the general population. Parents of 2,786 children also self-reported on an adapted version of the Oxford-Liverpool Inventory of Feelings and Experiences (O-LIFE-US). RESULTS The CO-LIFE resulted in continuous distributions for the total score and for each of three factor analytically-derived subscales. Item response theory (IRT) analyses indicated strong reliability across the score range for the O-LIFE-US and the CO-LIFE. Internal consistency and test-retest reliability were high across all scales. Parent-child intraclass correlations were consistent with high heritability. The scales discriminated participants who reported a lifetime psychiatric diagnosis from those who reported no diagnosis. The O-LIFE-US and CO-LIFE scores correlated positively with the Social Responsiveness Scale 2 (SRS-2) indicating good convergent validity. CONCLUSIONS Like the original O-LIFE, the O-LIFE-US and the CO-LIFE are valid and reliable tools that reflect the spectrum of psychiatric and schizotypal traits in the general population. Such scales are necessary for conducting family studies that aim to examine a range of psychological and behavioral traits in both children and adults and are well-suited for the Research Domain Criteria (RDoC) initiative of the NIMH.
Collapse
Affiliation(s)
- David W Evans
- Department of Psychology, Program in Neuroscience, Bucknell University, Lewisburg, PA, USA
| | - Laina G Lusk
- Department of Psychology, Program in Neuroscience, Bucknell University, Lewisburg, PA, USA
- Geisinger Health System, Danville, PA, USA
| | | | | | | | - Mirko Uljarević
- Olga Tennison Autism Research Centre, School of Psychology and Public Health, La Trobe University, Melbourne, Vic, Australia
| | - Oliver Mason
- School of Psychology, University of Surrey Stag Hill, Guilford, Surrey, UK
| | - Gordon Claridge
- Department of Experimental Psychology, Oxford University, Oxford, UK
| | - Thomas Frazier
- Cleveland Clinic Children's Hospital, Center for Pediatric Behavioral Health, Cleveland, OH, USA
| |
Collapse
|
23
|
Jepsen JRM, Rydkjaer J, Fagerlund B, Pagsberg AK, Jespersen RAF, Glenthøj BY, Oranje B. Overlapping and disease specific trait, response, and reflection impulsivity in adolescents with first-episode schizophrenia spectrum disorders or attention-deficit/hyperactivity disorder. Psychol Med 2018; 48:604-616. [PMID: 28712363 DOI: 10.1017/s0033291717001921] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
BACKGROUND Schizophrenia and attention-deficit/hyperactivity disorder (ADHD) are developmental disorders with shared clinical characteristics such as cognitive impairments and impulsivity. Impulsivity is a core feature of ADHD and an important factor in aggression, violence, and substance use in schizophrenia. Based on the hypothesis that schizophrenia and ADHD represent a continuum of neurodevelopmental impairments, the aim was to identify overlapping and disease specific forms of impulsivity. METHODS Adolescents between 12 and 17 years of age were assessed with the Schedule for Affective Disorders and Schizophrenia for School-aged Children - Present and Lifetime Version. Subjects with early-onset, first-episode schizophrenia spectrum disorders (EOS) (N = 29) or ADHD (N = 29) and healthy controls (N = 45) were compared on two performance measures (Information Sampling Task, Stop Signal Task) and a subjective personality trait measure of impulsivity (Barratt Impulsiveness Scale, Version 11 (BIS-11)). RESULTS Significantly increased reflection impulsivity was observed in ADHD but not in the EOS group. No significant response inhibition deficits (stop signal reaction time) were found in the two clinical groups. The ADHD and the EOS group showed significantly increased motor, attentional, and non-planning subtraits of impulsivity. CONCLUSIONS Impaired pre-decisional information gathering appeared to be specific for ADHD while the information gathering was not significantly reduced in subjects with EOS. Neither the ADHD nor EOS group showed impaired response inhibition but shared increased personality subtraits of attentional, non-planning, and motor impulsivity although the latter was significantly more pronounced in ADHD. These increased subtraits of impulsivity may reflect diagnostic non-specific neurodevelopmental impairments in ADHD and EOS in adolescence.
Collapse
Affiliation(s)
- J R M Jepsen
- Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS) and Center for Neuropsychiatric Schizophrenia Research (CNSR),Mental Health Centre Glostrup,University of Copenhagen,Glostrup,Denmark
| | - J Rydkjaer
- Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS) and Center for Neuropsychiatric Schizophrenia Research (CNSR),Mental Health Centre Glostrup,University of Copenhagen,Glostrup,Denmark
| | - B Fagerlund
- Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS) and Center for Neuropsychiatric Schizophrenia Research (CNSR),Mental Health Centre Glostrup,University of Copenhagen,Glostrup,Denmark
| | - A K Pagsberg
- Child and Adolescent Mental Health Center,Mental Health Services,Capital Region of Denmark,Copenhagen,Denmark
| | - R Av F Jespersen
- Department of Child and Adolescent Psychiatry,Landssjúkrahusid (National Hospital),Torshavn,Faroe Islands
| | - B Y Glenthøj
- Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS) and Center for Neuropsychiatric Schizophrenia Research (CNSR),Mental Health Centre Glostrup,University of Copenhagen,Glostrup,Denmark
| | - B Oranje
- Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS) and Center for Neuropsychiatric Schizophrenia Research (CNSR),Mental Health Centre Glostrup,University of Copenhagen,Glostrup,Denmark
| |
Collapse
|
24
|
Noguera A, Castro-Fornieles J, Romero S, de la Serna E, Sugranyes G, Sánchez-Gistau V, Moreno D, Díaz-Caneja CM, Merchán-Naranjo J, Llorente C, Baeza I. Attenuated psychotic symptoms in children and adolescent offspring of patients with schizophrenia. Schizophr Res 2018; 193:354-358. [PMID: 28802820 DOI: 10.1016/j.schres.2017.07.050] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Revised: 07/20/2017] [Accepted: 07/24/2017] [Indexed: 10/19/2022]
Affiliation(s)
- Ana Noguera
- Department of Child and Adolescent Psychiatry and Psychology, SGR-489, Institut Clínic of Neurosciences, IDIBAPS (Institut d'Investigacions Biomèdiques August Pi Sunyer), Hospital Clínic Universitari of Barcelona, Department of Psychiatry and Psychobiology, University of Barcelona, Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Spain.
| | - Josefina Castro-Fornieles
- Department of Child and Adolescent Psychiatry and Psychology, SGR-489, Institut Clínic of Neurosciences, IDIBAPS (Institut d'Investigacions Biomèdiques August Pi Sunyer), Hospital Clínic Universitari of Barcelona, Department of Psychiatry and Psychobiology, University of Barcelona, Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Spain
| | - Soledad Romero
- Department of Child and Adolescent Psychiatry and Psychology, SGR-489, Institut Clínic of Neurosciences, IDIBAPS (Institut d'Investigacions Biomèdiques August Pi Sunyer), Hospital Clínic Universitari of Barcelona, Department of Psychiatry and Psychobiology, University of Barcelona, Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Spain
| | - Elena de la Serna
- Department of Child and Adolescent Psychiatry and Psychology, SGR-489, Institut Clínic of Neurosciences, IDIBAPS (Institut d'Investigacions Biomèdiques August Pi Sunyer), Hospital Clínic Universitari of Barcelona, Department of Psychiatry and Psychobiology, University of Barcelona, Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Spain
| | - Gisela Sugranyes
- Department of Child and Adolescent Psychiatry and Psychology, SGR-489, Institut Clínic of Neurosciences, IDIBAPS (Institut d'Investigacions Biomèdiques August Pi Sunyer), Hospital Clínic Universitari of Barcelona, Department of Psychiatry and Psychobiology, University of Barcelona, Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Spain
| | - Vanessa Sánchez-Gistau
- Early Intervention Psychosis Service, Pere Mata Institute and University Hospital, IISPV, Rovira i Virgili University, Reus, Spain
| | - Dolores Moreno
- Department of Child and Adolescent Psychiatry, Hospital General Universitario Gregorio Marañón, School of Medicine, Universidad Complutense, IiSGM, CIBERSAM, Madrid, Spain
| | - Covadonga M Díaz-Caneja
- Department of Child and Adolescent Psychiatry, Hospital General Universitario Gregorio Marañón, School of Medicine, Universidad Complutense, IiSGM, CIBERSAM, Madrid, Spain
| | - Jessica Merchán-Naranjo
- Department of Child and Adolescent Psychiatry, Hospital General Universitario Gregorio Marañón, School of Medicine, Universidad Complutense, IiSGM, CIBERSAM, Madrid, Spain
| | - Cloe Llorente
- Department of Child and Adolescent Psychiatry, Hospital General Universitario Gregorio Marañón, School of Medicine, Universidad Complutense, IiSGM, CIBERSAM, Madrid, Spain
| | - Inmaculada Baeza
- Department of Child and Adolescent Psychiatry and Psychology, SGR-489, Institut Clínic of Neurosciences, IDIBAPS (Institut d'Investigacions Biomèdiques August Pi Sunyer), Hospital Clínic Universitari of Barcelona, Department of Psychiatry and Psychobiology, University of Barcelona, Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Spain
| |
Collapse
|
25
|
Trisha C, Golnoush A, Jan-Marie K, Torres IJ, Yatham LN. Cognitive functioning in first episode bipolar I disorder patients with and without history of psychosis. J Affect Disord 2018; 227:109-116. [PMID: 29055258 DOI: 10.1016/j.jad.2017.10.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 09/03/2017] [Accepted: 10/01/2017] [Indexed: 11/25/2022]
Abstract
BACKGROUND Psychosis in bipolar I disorder (BDI) has been associated with increased cognitive dysfunction, which may relate to poorer functional outcomes. However, it is not known whether cognition differs between BDI patients with (BDP+) or without (BDP-) history of psychosis early in the disease course, or if it is impacted by the presence of mood congruent (MCP) versus incongruent (MIC) psychotic features. We compare cognition between these groups in BDI patients recently recovered from first episode of mania. METHODS Attention, verbal learning/memory, processing speed and executive functioning were compared between: 1) all BDI patients (n = 73) and healthy controls (HC, n = 45), 2) BDP+ (n = 60) and BDP- (n = 13) patients and 3) MCP (n = 27) and MIC (n = 33) patients. Post-hoc analyses compared all patient groups with HC. RESULTS While BDI patients performed worse than HC in all domains, there were no significant differences between BDP+ and BDP-, or MCP and MIC, patients. However, BDP+ and MIC groups demonstrated different patterns of impairment compared to HC then did BDP- or MCP. Executive functioning and cognitive flexibility in particular appeared to be a deficit area in BDP+ patients. LIMITATIONS This study may have been underpowered to detect differences in direct comparison between BDP+ and BDP- patients. CONCLUSION While replication in larger samples is required, these results suggest that subtle cognitive differences between BDP+ and BDP-, and between MIC and MCP, patients may be present shortly after disease onset. These patient subsets may therefore be of interest in examining early intensive strategies to preserve cognition.
Collapse
Affiliation(s)
- Chakrabarty Trisha
- Department of Psychiatry, University of British Columbia, 2255 Wesbrook Mall, Vancouver, BC, Canada V6T 2A1
| | - Alamian Golnoush
- Department of Psychology, University of Montreal, C.P. 6128, Succursale Centre-ville, Montréal, QC, Canada H3C 3J7
| | - Kozicky Jan-Marie
- Department of Psychiatry, University of British Columbia, 2255 Wesbrook Mall, Vancouver, BC, Canada V6T 2A1
| | - Ivan J Torres
- Department of Psychiatry, University of British Columbia, 2255 Wesbrook Mall, Vancouver, BC, Canada V6T 2A1
| | - Lakshmi N Yatham
- Department of Psychiatry, University of British Columbia, 2255 Wesbrook Mall, Vancouver, BC, Canada V6T 2A1.
| |
Collapse
|
26
|
Nivard MG, Gage SH, Hottenga JJ, van Beijsterveldt CEM, Abdellaoui A, Bartels M, Baselmans BML, Ligthart L, Pourcain BS, Boomsma DI, Munafò MR, Middeldorp CM. Genetic Overlap Between Schizophrenia and Developmental Psychopathology: Longitudinal and Multivariate Polygenic Risk Prediction of Common Psychiatric Traits During Development. Schizophr Bull 2017; 43:1197-1207. [PMID: 28338919 PMCID: PMC5737694 DOI: 10.1093/schbul/sbx031] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Background Several nonpsychotic psychiatric disorders in childhood and adolescence can precede the onset of schizophrenia, but the etiology of this relationship remains unclear. We investigated to what extent the association between schizophrenia and psychiatric disorders in childhood is explained by correlated genetic risk factors. Methods Polygenic risk scores (PRS), reflecting an individual's genetic risk for schizophrenia, were constructed for 2588 children from the Netherlands Twin Register (NTR) and 6127 from the Avon Longitudinal Study of Parents And Children (ALSPAC). The associations between schizophrenia PRS and measures of anxiety, depression, attention deficit hyperactivity disorder (ADHD), and oppositional defiant disorder/conduct disorder (ODD/CD) were estimated at age 7, 10, 12/13, and 15 years in the 2 cohorts. Results were then meta-analyzed, and a meta-regression analysis was performed to test differences in effects sizes over, age and disorders. Results Schizophrenia PRS were associated with childhood and adolescent psychopathology. Meta-regression analysis showed differences in the associations over disorders, with the strongest association with childhood and adolescent depression and a weaker association for ODD/CD at age 7. The associations increased with age and this increase was steepest for ADHD and ODD/CD. Genetic correlations varied between 0.10 and 0.25. Conclusion By optimally using longitudinal data across diagnoses in a multivariate meta-analysis this study sheds light on the development of childhood disorders into severe adult psychiatric disorders. The results are consistent with a common genetic etiology of schizophrenia and developmental psychopathology as well as with a stronger shared genetic etiology between schizophrenia and adolescent onset psychopathology.
Collapse
Affiliation(s)
- Michel G Nivard
- Biological Psychology, VU University, Amsterdam, The Netherlands
| | - Suzanne H Gage
- Department of Psychological Sciences, University of Liverpool, Liverpool, UK
- MRC Integrative Epidemiology Unit at the University of Bristol, Bristol, UK
- UK Centre for Tobacco and Alcohol Studies, School of Experimental Psychology, University of Bristol, Bristol, UK
| | - Jouke J Hottenga
- Biological Psychology, VU University, Amsterdam, The Netherlands
- Amsterdam Public Health, Amsterdam, The Netherlands
| | | | - Abdel Abdellaoui
- Biological Psychology, VU University, Amsterdam, The Netherlands
| | - Meike Bartels
- Biological Psychology, VU University, Amsterdam, The Netherlands
- Amsterdam Public Health, Amsterdam, The Netherlands
| | - Bart M L Baselmans
- Biological Psychology, VU University, Amsterdam, The Netherlands
- Amsterdam Public Health, Amsterdam, The Netherlands
| | - Lannie Ligthart
- Biological Psychology, VU University, Amsterdam, The Netherlands
- Amsterdam Public Health, Amsterdam, The Netherlands
| | - Beate St Pourcain
- MRC Integrative Epidemiology Unit at the University of Bristol, Bristol, UK
- Department of Language and Genetics, Max Planck Institute for Psycholinguistics, Nijmegen, The Netherlands
| | - Dorret I Boomsma
- Biological Psychology, VU University, Amsterdam, The Netherlands
- Amsterdam Public Health, Amsterdam, The Netherlands
- Amsterdam Neuroscience, Amsterdam, The Netherlands
| | - Marcus R Munafò
- MRC Integrative Epidemiology Unit at the University of Bristol, Bristol, UK
- UK Centre for Tobacco and Alcohol Studies, School of Experimental Psychology, University of Bristol, Bristol, UK
| | - Christel M Middeldorp
- Biological Psychology, VU University, Amsterdam, The Netherlands
- Amsterdam Neuroscience, Amsterdam, The Netherlands
- Department of Child and Adolescent Psychiatry, GGZ inGeest/ VU University Medical Centre, Amsterdam, The Netherlands
| |
Collapse
|
27
|
Agnew-Blais J, Seidman LJ, Fitzmaurice GM, Smoller JW, Goldstein JM, Buka SL. The interplay of childhood behavior problems and IQ in the development of later schizophrenia and affective psychoses. Schizophr Res 2017; 184:45-51. [PMID: 28062262 PMCID: PMC6140330 DOI: 10.1016/j.schres.2016.12.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 12/07/2016] [Accepted: 12/12/2016] [Indexed: 10/20/2022]
Abstract
Schizophrenia and affective psychoses are both associated with impaired social functioning, but the extent to which childhood behavioral impairments are present prior to onset of illness is less well studied. Moreover, the concurrent relationship of childhood behavior problems and premorbid IQ with subsequent psychotic disorder has not been established. We investigated whether childhood behavior problems are associated with increased risk for adult schizophrenia or affective psychosis, independently and in combination with IQ. The study included individuals with schizophrenia (N=47), affective psychoses (N=45) and non-psychotic controls (N=1496) from the New England Family Study. Behavior problems were prospectively assessed from standardized clinician observations at ages 4 and 7. IQ was assessed with the Stanford-Binet at age 4 and the Wechsler Intelligence Scale for Children at age 7. We found externalizing problems at age 4 and externalizing and internalizing problems at age 7 were associated with later schizophrenia, and both internalizing and externalizing problems at ages 4 and 7 were associated with later development of affective psychoses. Lower IQ at ages 4 and 7 was associated with schizophrenia, while lower IQ was associated with affective psychoses at age 7 only. Examined simultaneously, both lower IQ and behavior problems remained associated with risk of schizophrenia, while only behavior problems remained associated with affective psychoses. Behavior problems appear to be a general marker of risk of adult psychotic disorder, while lower childhood IQ is more specific to risk of schizophrenia. Future research should clarify the premorbid evolution of behavior and cognitive problems into adult psychosis.
Collapse
Affiliation(s)
- Jessica Agnew-Blais
- MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College, London, UK.
| | - Larry J. Seidman
- Harvard Medical School, Department of Psychiatry, Massachusetts Mental Health Center Division of Public Psychiatry, Beth Israel Deaconess Medical Center, Boston, MA 02115, USA,Harvard Medical School, Department of Psychiatry, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Garrett M. Fitzmaurice
- Harvard Medical School, Laboratory for Psychiatric Biostatistics, McLean Hospital, Belmont, MA 02478,Department of Biostatistics, Harvard School of Public Health, Boston, MA 02115
| | - Jordan W. Smoller
- Harvard Medical School, Department of Psychiatry, Massachusetts General Hospital, Boston, MA 02114, USA,Psychiatric and Neurodevelopmental Genetics Unit, Center for Human Genetics Research, Massachusetts General Hospital, Boston, MA 02114
| | - Jill M. Goldstein
- Harvard Medical School, Department of Psychiatry, Massachusetts General Hospital, Boston, MA 02114, USA,Harvard Medical School, Department of Psychiatry, Division of Women’s Health, Connors Center for Women’s Health & Gender Biology, Boston, MA 02120
| | - Stephen L. Buka
- Brown University, Department of Epidemiology, Providence, RI 02912
| |
Collapse
|
28
|
White Matter Integrity in Genetic High-Risk Individuals and First-Episode Schizophrenia Patients: Similarities and Disassociations. BIOMED RESEARCH INTERNATIONAL 2017; 2017:3107845. [PMID: 28401151 PMCID: PMC5376415 DOI: 10.1155/2017/3107845] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2016] [Accepted: 02/16/2017] [Indexed: 02/01/2023]
Abstract
White matter (WM) neuroimaging studies have shown varied findings at different stages of schizophrenia (SZ). Understanding these variations may elucidate distinct markers of genetic vulnerability and conversion to psychosis. To examine the similarities and differences in WM connectivity between those at-risk for and in early stages of SZ, a cross-sectional diffusion tensor imaging study of 48 individuals diagnosed with first-episode SZ (FE-SZ), 37 nonpsychotic individuals at a high genetic risk of SZ (GHR-SZ), and 67 healthy controls (HC) was conducted. Decreased fractional anisotropy (FA) in the corpus callosum (CC), anterior cingulum (AC), and uncinate fasciculus (UF) was observed in both the GHR-SZ and FE-SZ groups, while decreased FAs in the superior longitudinal fasciculus (SLF) and the fornix were only seen in the FE-SZ participants. Additionally, both GHR-SZ and FE-SZ showed worse executive performance than HC. The left SLF III FA was significantly positively correlated with hallucinations, and right SLF II was positively correlated with thought disorder. The presence of shared WM deficits in both FE-SZ and GHR-SZ individuals may reflect the genetic liability to SZ, while the disparate FA changes in the FE-SZ group may represent symptom-generating circuitry that mediates perceptual and cognitive disturbances of SZ and ultimately culminates in the onset of psychotic episodes.
Collapse
|
29
|
Gkintoni E, Pallis EG, Bitsios P, Giakoumaki SG. Neurocognitive performance, psychopathology and social functioning in individuals at high risk for schizophrenia or psychotic bipolar disorder. J Affect Disord 2017; 208:512-520. [PMID: 27810272 DOI: 10.1016/j.jad.2016.10.032] [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: 06/21/2016] [Revised: 09/05/2016] [Accepted: 10/22/2016] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Although cognitive deficits are consistent endophenotypes of schizophrenia and bipolar disorder, findings in psychotic bipolar disorder (BDP) are inconsistent. In this study we compared adult unaffected first-degree relatives of schizophrenia and BDP patients on cognition, psychopathology, social functioning and quality of life. METHODS Sixty-six unaffected first-degree relatives of schizophrenia patients (SUnR), 36 unaffected first-degree relatives of BDP patients (BDPUnR) and 102 controls participated in the study. Between-group differences were examined and Discriminant Function Analysis (DFA) predicted group membership. RESULTS Visual memory, control inhibition, working memory, cognitive flexibility and abstract reasoning were linearly impaired in the relatives' groups. Poorer verbal fluency and processing speed were evident only in the SUnR group. The SUnR group had higher depressive and somatization symptoms while the BDPUnR group had higher anxiety and lower social functioning compared with the controls. Individuals with superior cognition were more likely to be classified as controls; those with higher social functioning, prolonged processing speed and lower anxiety were more likely to be classified as SUnR. LIMITATIONS The relatives' sample is quite heterogeneous; the effects of genetic or environmental risk-factors were not examined. CONCLUSIONS Cognitive functions mediated by a fronto-parietal network, show linear impairments in unaffected relatives of BDP and schizophrenia patients; processing speed and verbal fluency impairments were evident only in schizophrenia relatives. Self-perceived symptomatology and social functioning also differ between schizophrenia and BDP relatives. The continuum seen in patients in several indices was also seen in the cognitive impairments in unaffected relatives of schizophrenia and BDP patients.
Collapse
Affiliation(s)
- Evgenia Gkintoni
- Department of Psychology, Gallos University campus, University of Crete, Rethymno, Crete, Greece
| | - Eleftherios G Pallis
- Department of Medicine, School of Health Sciences, National and Kapodistrian University of Athens, Greece
| | - Panos Bitsios
- Department of Psychiatry & Behavioral Sciences, Faculty of Medicine, University of Crete, Heraklion, Crete, Greece
| | - Stella G Giakoumaki
- Department of Psychology, Gallos University campus, University of Crete, Rethymno, Crete, Greece.
| |
Collapse
|
30
|
Ammar HO, Ghorab MM, Mahmoud AA, Noshi SH. Formulation of risperidone in floating microparticles to alleviate its extrapyramidal side effects. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2016. [DOI: 10.1016/j.fjps.2016.08.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
|
31
|
Gay O, Plaze M, Oppenheim C, Gaillard R, Olié JP, Krebs MO, Cachia A. Cognitive control deficit in patients with first-episode schizophrenia is associated with complex deviations of early brain development. J Psychiatry Neurosci 2016; 41:150267. [PMID: 27673502 PMCID: PMC5373705 DOI: 10.1503/jpn.150267] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 02/10/2016] [Accepted: 05/16/2016] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Several clinical and radiological markers of early neurodevelopmental deviations have been independently associated with cognitive impairment in patients with schizophrenia. The aim of our study was to test the cumulative and/or interactive effects of these early neurodevelopmental factors on cognitive control (CC) deficit, a core feature of schizophrenia. METHODS We recruited patients with first-episode schizophrenia-spectrum disorders, who underwent structural MRI. We evaluated CC efficiency using the Trail Making Test (TMT). Several markers of early brain development were measured: neurological soft signs (NSS), handedness, sulcal pattern of the anterior cingulate cortex (ACC) and ventricle enlargement. RESULTS We included 41 patients with schizophrenia in our analysis, which revealed a main effect of ACC morphology (p = 0.041) as well as interactions between NSS and ACC morphology (p = 0.005), between NSS and handedness (p = 0.044) and between ACC morphology and cerebrospinal fluid (CSF) volume (p = 0.005) on CC measured using the TMT-B score - the TMT-A score. LIMITATIONS No 3- or 4-way interactions were detected between the 4 neurodevelopmental factors. The sample size was clearly adapted to detect main effects and 2-way interactions, but may have limited the statistical power to investigate higher-order interactions. The effects of treatment and illness duration were limited as the study design involved only patients with first-episode psychosis. CONCLUSION To our knowledge, our study provides the first evidence of cumulative and interactive effects of different neurodevelopmental markers on CC efficiency in patients with schizophrenia. Such findings, in line with the neurodevelopmental model of schizophrenia, support the notion that CC impairments in patients with schizophrenia may be the final common pathway of several early neurodevelopmental mechanisms.
Collapse
Affiliation(s)
- Olivier Gay
- From the INSERM UMR 894, Centre de Psychiatrie & Neurosciences, CNRS GDR 3557, Institut de Psychiatrie, Paris, France (Gay, Plaze, Oppenheim, Gaillard, Olié, Krebs, Cachia); the Université Paris Descartes, Sorbonne Paris Cité, Paris, France (Gay, Plaze, Oppenheim, Gaillard, Olié, Krebs, Cachia); the Service Hospitalo-Universitaire, Centre Hospitalier Sainte-Anne, Paris, France (Gay, Plaze, Gaillard, Olié, Krebs); the Service d’Imagerie Morphologique et Fonctionnelle, Centre Hospitalier Sainte-Anne, Paris, France (Oppenheim); the CNRS UMR 8240, Laboratoire de Psychologie du Développement et de l’Éducation de l’Enfant, Paris, France (Cachia); and the Institut Universitaire de France, Paris, France (Cachia)
| | - Marion Plaze
- From the INSERM UMR 894, Centre de Psychiatrie & Neurosciences, CNRS GDR 3557, Institut de Psychiatrie, Paris, France (Gay, Plaze, Oppenheim, Gaillard, Olié, Krebs, Cachia); the Université Paris Descartes, Sorbonne Paris Cité, Paris, France (Gay, Plaze, Oppenheim, Gaillard, Olié, Krebs, Cachia); the Service Hospitalo-Universitaire, Centre Hospitalier Sainte-Anne, Paris, France (Gay, Plaze, Gaillard, Olié, Krebs); the Service d’Imagerie Morphologique et Fonctionnelle, Centre Hospitalier Sainte-Anne, Paris, France (Oppenheim); the CNRS UMR 8240, Laboratoire de Psychologie du Développement et de l’Éducation de l’Enfant, Paris, France (Cachia); and the Institut Universitaire de France, Paris, France (Cachia)
| | - Catherine Oppenheim
- From the INSERM UMR 894, Centre de Psychiatrie & Neurosciences, CNRS GDR 3557, Institut de Psychiatrie, Paris, France (Gay, Plaze, Oppenheim, Gaillard, Olié, Krebs, Cachia); the Université Paris Descartes, Sorbonne Paris Cité, Paris, France (Gay, Plaze, Oppenheim, Gaillard, Olié, Krebs, Cachia); the Service Hospitalo-Universitaire, Centre Hospitalier Sainte-Anne, Paris, France (Gay, Plaze, Gaillard, Olié, Krebs); the Service d’Imagerie Morphologique et Fonctionnelle, Centre Hospitalier Sainte-Anne, Paris, France (Oppenheim); the CNRS UMR 8240, Laboratoire de Psychologie du Développement et de l’Éducation de l’Enfant, Paris, France (Cachia); and the Institut Universitaire de France, Paris, France (Cachia)
| | - Raphael Gaillard
- From the INSERM UMR 894, Centre de Psychiatrie & Neurosciences, CNRS GDR 3557, Institut de Psychiatrie, Paris, France (Gay, Plaze, Oppenheim, Gaillard, Olié, Krebs, Cachia); the Université Paris Descartes, Sorbonne Paris Cité, Paris, France (Gay, Plaze, Oppenheim, Gaillard, Olié, Krebs, Cachia); the Service Hospitalo-Universitaire, Centre Hospitalier Sainte-Anne, Paris, France (Gay, Plaze, Gaillard, Olié, Krebs); the Service d’Imagerie Morphologique et Fonctionnelle, Centre Hospitalier Sainte-Anne, Paris, France (Oppenheim); the CNRS UMR 8240, Laboratoire de Psychologie du Développement et de l’Éducation de l’Enfant, Paris, France (Cachia); and the Institut Universitaire de France, Paris, France (Cachia)
| | - Jean-Pierre Olié
- From the INSERM UMR 894, Centre de Psychiatrie & Neurosciences, CNRS GDR 3557, Institut de Psychiatrie, Paris, France (Gay, Plaze, Oppenheim, Gaillard, Olié, Krebs, Cachia); the Université Paris Descartes, Sorbonne Paris Cité, Paris, France (Gay, Plaze, Oppenheim, Gaillard, Olié, Krebs, Cachia); the Service Hospitalo-Universitaire, Centre Hospitalier Sainte-Anne, Paris, France (Gay, Plaze, Gaillard, Olié, Krebs); the Service d’Imagerie Morphologique et Fonctionnelle, Centre Hospitalier Sainte-Anne, Paris, France (Oppenheim); the CNRS UMR 8240, Laboratoire de Psychologie du Développement et de l’Éducation de l’Enfant, Paris, France (Cachia); and the Institut Universitaire de France, Paris, France (Cachia)
| | | | - Arnaud Cachia
- Correspondence to: Prof. A. Cachia, Centre de Psychiatrie et Neurosciences, UMR 894, INSERM – Université, Paris Descartes, Hôpital Sainte-Anne, Paris, France;
| |
Collapse
|
32
|
|
33
|
Papiol S, Fatjó-Vilas M, Schulze TG. Neurological soft signs in patients with schizophrenia: current knowledge and future perspectives in the post-genomics era. ACTA ACUST UNITED AC 2016. [DOI: 10.3402/tdp.v4.30071] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
34
|
Oldis M, Murray G, Macneil CA, Hasty MK, Daglas R, Berk M, Conus P, Cotton SM. Trajectory and predictors of quality of life in first episode psychotic mania. J Affect Disord 2016; 195:148-55. [PMID: 26896807 DOI: 10.1016/j.jad.2016.02.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Revised: 01/26/2016] [Accepted: 02/06/2016] [Indexed: 01/07/2023]
Abstract
BACKGROUND Little is known about the trajectory of quality of life (QoL) following a first episode of psychotic mania in bipolar disorder (BD). This 18-month longitudinal study investigated the trajectory of QoL, and the influence of premorbid adjustment and symptoms on 18-month QoL in a cohort of young people experiencing a first episode of psychotic mania. METHODS As part of an overarching clinical trial, at baseline, sixty participants presenting with a first episode of psychotic mania (BD Type 1 - DSM-IV) completed symptomatic and functional assessments in addition to the Premorbid Adjustment Scale - General Subscale. Symptom measures were repeated at 18-month follow up. QoL was rated using the Quality of Life Scale (QLS) at designated time points. RESULTS Mean QLS scores at initial measurement (8 weeks) were 61% of the maximum possible score, increasing significantly to 70% at 12 months, and 71.2% at 18-month follow-up. Premorbid adjustment and 18-month depressive symptoms were significantly associated with QoL at 18-month follow-up. LIMITATIONS Study limitations include the small sample size, inclusion of participants with psychotic mania only, use of measures originally designed for use with schizophrenia spectrum disorders, and lack of premorbid or baseline measurement of QoL. CONCLUSIONS Results suggest that QoL can be maintained early in BD, and reinforce the importance of assertively treating depressive symptoms throughout the course of this disorder. The emergence of a link between premorbid adjustment and poorer QoL in this cohort highlights the importance of assessing facets of adjustment when planning psychological interventions.
Collapse
Affiliation(s)
- Meredith Oldis
- Faculty of Life and Social Sciences, Swinburne University of Technology, Hawthorn, Australia
| | - Greg Murray
- Faculty of Life and Social Sciences, Swinburne University of Technology, Hawthorn, Australia.
| | - Craig A Macneil
- Orygen Youth Health - Clinical Program, Parkville, Australia
| | - Melissa K Hasty
- Orygen Youth Health - Clinical Program, Parkville, Australia
| | - Rothanthi Daglas
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Australia; Centre for Youth Mental Health, The University of Melbourne, Parkville, Australia
| | - Michael Berk
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Australia; Centre for Youth Mental Health, The University of Melbourne, Parkville, Australia; IMPACT Strategic Research Centre, Deakin University, School of Medicine, Barwon Health, Geelong, Australia; Florey Institute for Neuroscience and Mental Health, University of Melbourne, Parkville, Australia; Department of Psychiatry, University of Melbourne, Parkville, Australia
| | - Philippe Conus
- Treatment and Early Intervention in Psychosis Program (TIPP), Département de Psychiatrie CHUV, Université de Lausanne, Clinique de Cery, 1008 Prilly, Switzerland
| | - Sue M Cotton
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Australia; Centre for Youth Mental Health, The University of Melbourne, Parkville, Australia
| |
Collapse
|
35
|
Liu C, Xue Z, Palaniyappan L, Zhou L, Liu H, Qi C, Wu G, Mwansisya TE, Tao H, Chen X, Huang X, Liu Z, Pu W. Abnormally increased and incoherent resting-state activity is shared between patients with schizophrenia and their unaffected siblings. Schizophr Res 2016; 171:158-65. [PMID: 26805410 DOI: 10.1016/j.schres.2016.01.022] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 12/18/2015] [Accepted: 01/11/2016] [Indexed: 12/19/2022]
Abstract
BACKGROUND Several resting-state neuroimaging studies in schizophrenia indicate an excessive brain activity while others report an incoherent brain activity at rest. No direct evidence for the simultaneous presence of both excessive and incoherent brain activity has been established to date. Moreover, it is unclear whether unaffected siblings of schizophrenia patients who share half of the affected patient's genotype also exhibit the excessive and incoherent brain activity that may render them vulnerable to the development of schizophrenia. METHODS 27 pairs of schizophrenia patients and their unaffected siblings, as well as 27 healthy controls, were scanned using gradient-echo echo-planar imaging at rest. By using amplitude of low-frequency fluctuations (ALFF) and regional homogeneity (Reho), we investigated the intensity and synchronization of local spontaneous neuronal activity in three groups. RESULTS We observed that increased amplitude and reduced synchronization (coherence) of spontaneous neuronal activity were shared by patients and their unaffected siblings. The key brain regions with this abnormal neural pattern in both patients and siblings included the middle temporal, orbito-frontal, inferior occipital and fronto-insular gyrus. CONCLUSIONS This abnormal neural pattern of excessive and incoherent neuronal activity shared by schizophrenia patients and their healthy siblings may improve our understanding of neuropathology and genetic predisposition in schizophrenia.
Collapse
Affiliation(s)
- Chang Liu
- Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China; The China National Clinical Research Center for Mental Health Disorders, National Technology Institute of Psychiatry, Key Laboratory of Psychiatry and Mental Health of Hunan Province, 139 Middle Renmin Road, Changsha, Hunan 410011, People's Republic of China
| | - Zhimin Xue
- Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China; State Key Laboratory of Medical Genetics, Central South University, Changsha, Hunan, People's Republic of China; The China National Clinical Research Center for Mental Health Disorders, National Technology Institute of Psychiatry, Key Laboratory of Psychiatry and Mental Health of Hunan Province, 139 Middle Renmin Road, Changsha, Hunan 410011, People's Republic of China
| | - Lena Palaniyappan
- Departments of Psychiatry, Neuroscience and Medical Biophysics, University of Western Ontario, London, Ontario, Canada
| | - Li Zhou
- Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China; The China National Clinical Research Center for Mental Health Disorders, National Technology Institute of Psychiatry, Key Laboratory of Psychiatry and Mental Health of Hunan Province, 139 Middle Renmin Road, Changsha, Hunan 410011, People's Republic of China
| | - Haihong Liu
- Mental Health Center, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Chang Qi
- Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China; The China National Clinical Research Center for Mental Health Disorders, National Technology Institute of Psychiatry, Key Laboratory of Psychiatry and Mental Health of Hunan Province, 139 Middle Renmin Road, Changsha, Hunan 410011, People's Republic of China
| | - Guowei Wu
- Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China; The China National Clinical Research Center for Mental Health Disorders, National Technology Institute of Psychiatry, Key Laboratory of Psychiatry and Mental Health of Hunan Province, 139 Middle Renmin Road, Changsha, Hunan 410011, People's Republic of China
| | - Tumbwene E Mwansisya
- Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China; College of Health Sciences, University of Dodoma, P.O. Box 395, Dodoma, Tanzania
| | - Haojuan Tao
- Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China; The China National Clinical Research Center for Mental Health Disorders, National Technology Institute of Psychiatry, Key Laboratory of Psychiatry and Mental Health of Hunan Province, 139 Middle Renmin Road, Changsha, Hunan 410011, People's Republic of China
| | - Xudong Chen
- Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China; The China National Clinical Research Center for Mental Health Disorders, National Technology Institute of Psychiatry, Key Laboratory of Psychiatry and Mental Health of Hunan Province, 139 Middle Renmin Road, Changsha, Hunan 410011, People's Republic of China
| | - Xiaojun Huang
- Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China; The China National Clinical Research Center for Mental Health Disorders, National Technology Institute of Psychiatry, Key Laboratory of Psychiatry and Mental Health of Hunan Province, 139 Middle Renmin Road, Changsha, Hunan 410011, People's Republic of China
| | - Zhening Liu
- Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China; State Key Laboratory of Medical Genetics, Central South University, Changsha, Hunan, People's Republic of China; The China National Clinical Research Center for Mental Health Disorders, National Technology Institute of Psychiatry, Key Laboratory of Psychiatry and Mental Health of Hunan Province, 139 Middle Renmin Road, Changsha, Hunan 410011, People's Republic of China
| | - Weidan Pu
- Medical Psychological Institute, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China; The China National Clinical Research Center for Mental Health Disorders, National Technology Institute of Psychiatry, Key Laboratory of Psychiatry and Mental Health of Hunan Province, 139 Middle Renmin Road, Changsha, Hunan 410011, People's Republic of China.
| |
Collapse
|
36
|
A temporal examination of co-activated emotion valence networks in schizophrenia and schizotypy. Schizophr Res 2016; 170:322-9. [PMID: 26711714 PMCID: PMC4740216 DOI: 10.1016/j.schres.2015.12.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 12/09/2015] [Accepted: 12/12/2015] [Indexed: 11/22/2022]
Abstract
Emotional abnormalities are prominent across the schizophrenia spectrum. To better define these abnormalities, we examined state emotional functions across opposing ends of the spectrum, notably in chronic outpatients with schizophrenia (Study 1) and college students with psychometrically defined schizotypy (Study 2). In line with existing studies, we predicted that individuals with schizophrenia would show unusually co-activated positive and negative emotions while college students with schizotypy would show abnormally low positive and abnormally high negative emotions. Drawing from the affective science literature, we employed continuous emotion ratings in response to a dynamic and evocatively "bittersweet" stimulus. Participants included 27 individuals with schizophrenia, 39 individuals with psychometrically defined schizotypy and 26 community and 35 college control participants. Participants continuously rated their state happiness and sadness throughout a six-minute clip from a tragicomic film (i.e., Life is Beautiful). In contrast to expectations as well as the extant literature, there were no state emotional abnormalities noted from either schizophrenia-spectrum group. Of particular note, neither individuals with schizophrenia nor individuals with schizotypy were abnormal in their experience of state negative, positive or coactivated emotions. Conversely, abnormalities in trait emotion were observed in both groups relative to their respective control groups. These results help confirm that the schizophrenia-spectrum is not characterized by deficits in state emotional experience and suggest that sadness is not abnormally co-activated with pleasant emotions. These results are critical for clarifying the "chronometry" of emotional dysfunctions across the schizophrenia-spectrum.
Collapse
|
37
|
Solanki RK, Kumar A, Satija Y, Gupta S, Singh P. An Indian experience of neurocognitive endophenotypic markers in unaffected first-degree relatives of schizophrenia patients. Indian J Psychiatry 2016; 58:20-6. [PMID: 26985100 PMCID: PMC4776576 DOI: 10.4103/0019-5545.174356] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
CONTEXT Multiple vulnerability genes interact with environmental factors to develop a range of phenotypes in the schizophrenia spectrum. Endophenotypes can help characterize the impact of risk genes by providing genetically relevant traits that are more complaisant than the behavioral symptoms that classify mental illness. AIMS We aimed to investigate the neurocognitive endophenotypic markers for schizophrenia in Indian population. SETTINGS AND DESIGN In a cross-sectional study, we assessed neurocognitive functioning in 40 unaffected first-degree relatives (FDR) of schizophrenia patients with an equal number of healthy controls. MATERIALS AND METHODS FDR schizophrenia group was compared with the control group on measures of short-term memory, verbal working memory, auditory verbal memory on indices of immediate recall and recognition, visuospatial working memory, visual attention, and executive functions. RESULTS The study found that FDR schizophrenia scored poorly on all tested measures of neurocognition except visual attention. On calculating composite score, we found that composite neurocognitive score better discriminated the FDR schizophrenia from the control group. CONCLUSIONS Neurocognitive measures of short-term memory, verbal working memory, auditory verbal memory, visuospatial working memory, and executive functions significantly differentiate FDR of patients with schizophrenia from controls and can be considered as endophenotypic markers of schizophrenia in non-Caucasian population. The exactitude of this approach can be increased by calculating a composite neurocognitive score which combines various neurocognitive measures.
Collapse
Affiliation(s)
- Ram Kumar Solanki
- Department of Psychiatry, Sawai Man Singh Medical College, Jaipur, Rajasthan, India
| | - Ashok Kumar
- Department of Psychiatry, Sawai Man Singh Medical College, Jaipur, Rajasthan, India
| | - Yogesh Satija
- Department of Psychiatry, Sawai Man Singh Medical College, Jaipur, Rajasthan, India
| | - Suresh Gupta
- Department of Psychiatry, Sawai Man Singh Medical College, Jaipur, Rajasthan, India
| | - Paramjeet Singh
- Department of Psychiatry, Sawai Man Singh Medical College, Jaipur, Rajasthan, India
| |
Collapse
|
38
|
Shah JL, Tandon N, Howard ER, Mermon D, Miewald JM, Montrose DM, Keshavan MS. Pituitary volume and clinical trajectory in young relatives at risk for schizophrenia. Psychol Med 2015; 45:2813-2824. [PMID: 26149540 DOI: 10.1017/s003329171500077x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND Stress and vulnerability likely interact to play a major role in psychosis. While much has been written about the neural diathesis-stress model in psychosis and its clinical risk states, little is known about HPA axis biomarkers in non-help-seeking individuals at familial high risk (FHR). We sought to prospectively measure pituitary volume (PV) in adolescents and young adults at FHR for schizophrenia and to follow their emerging sub-clinical psychotic symptoms and clinical trajectories. METHOD Forty healthy controls and 38 relatives of patients with schizophrenia or schizoaffective disorder were identified in Pittsburgh, USA. PV was derived from baseline 1.5 T magnetic resonance imaging. Chapman's schizotypy scales were acquired at baseline, and structured clinical interviews for DSM-IV-TR Axis I diagnoses were attempted annually for up to 3 years. RESULTS Seven individuals converted to psychosis. PV did not differ between FHR and control groups overall. Within the FHR group, PV was positively correlated with Chapman's positive schizotypy (Magical Ideation and Perceptual Aberration) scores, and there was a significant group × PV interaction with schizotypy. PV was significantly higher in FHR subjects carrying any baseline Axis I diagnosis (p = 0.004), and higher still in individuals who went on to convert to psychosis (p = 0.0007). CONCLUSIONS Increased PV is a correlate of early positive schizotypy, and may predict trait vulnerability to subsequent psychosis in FHR relatives. These preliminary findings support a model of stress-vulnerability and HPA axis activation in the early phases of psychosis.
Collapse
Affiliation(s)
- J L Shah
- Massachusetts Mental Health Center and Beth Israel Deaconess Medical Center,Boston,MA,USA
| | - N Tandon
- Massachusetts Mental Health Center and Beth Israel Deaconess Medical Center,Boston,MA,USA
| | - E R Howard
- Massachusetts Mental Health Center and Beth Israel Deaconess Medical Center,Boston,MA,USA
| | - D Mermon
- Western Psychiatric Institute and Clinic,University of Pittsburgh School of Medicine,Pittsburgh,PA,USA
| | - J M Miewald
- Western Psychiatric Institute and Clinic,University of Pittsburgh School of Medicine,Pittsburgh,PA,USA
| | - D M Montrose
- Western Psychiatric Institute and Clinic,University of Pittsburgh School of Medicine,Pittsburgh,PA,USA
| | - M S Keshavan
- Massachusetts Mental Health Center and Beth Israel Deaconess Medical Center,Boston,MA,USA
| |
Collapse
|
39
|
Tang Y, Chen K, Zhou Y, Liu J, Wang Y, Driesen N, Edmiston EK, Chen X, Jiang X, Kong L, Zhou Q, Li H, Wu F, Wang Z, Xu K, Wang F. Neural activity changes in unaffected children of patients with schizophrenia: A resting-state fMRI study. Schizophr Res 2015; 168:360-5. [PMID: 26232869 DOI: 10.1016/j.schres.2015.07.025] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 06/29/2015] [Accepted: 07/14/2015] [Indexed: 02/05/2023]
Abstract
Previous neuroimaging studies have suggested that individuals at risk for schizophrenia exhibit structural and functional brain abnormalities. However, few studies focus on resting state baseline activity in individuals with genetic high-risk for schizophrenia (HR). We examined cerebral spontaneous neural activity in HR by measuring the amplitude of low frequency fluctuations (ALFF) in the blood oxygen level-dependent (BOLD) functional magnetic resonance signal during resting state. Using a 3T MRI scanner, 28 non-psychotic young adult participants with at least one parent with schizophrenia and 44 matched unrelated healthy comparison subjects (HC) were scanned during the resting-state. The ALFF of the BOLD signal for each participant was calculated, and these values were then compared between-groups using voxel-based analysis of the ALFF maps. The HR group showed significantly increased ALFF compared to the HC group in the striatum, including the left caudate nucleus extending to the putamen and the right caudate nucleus. There was also increased ALFF in HR relative to controls in the left medial temporal region including hippocampus, parahippocampal gyrus and the fusiform gyrus, as well as regions including the left lateral thalamus, bilateral ventral and dorsal anterior cingulate cortex, bilateral calcarine sulcus and precuneus. There was significantly decreased ALFF in the HR group relative to controls in the left inferior parietal lobule/postcentral gyrus. Our findings suggest that altered intrinsic neuronal activity in cortico-striato-thalamic networks may represent genetic vulnerability for the development of schizophrenia.
Collapse
Affiliation(s)
- Yanqing Tang
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Kaiyuan Chen
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China; Mental Health Center, Shantou University Medical College, Shantou, Guangdong, PR China
| | - Yifang Zhou
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Jie Liu
- Department of Psychiatry, Yale University School of Medicine, New Haven, USA
| | - Ye Wang
- Mental Health Center of Shenyang, Shenyang, Liaoning, PR China
| | - Naomi Driesen
- Department of Psychiatry, Yale University School of Medicine, New Haven, USA
| | - E Kale Edmiston
- Vanderbilt Neuroscience Graduate Program, Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN, USA
| | - Xiaogang Chen
- Institute of Mental Health, the Second Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Xiaowei Jiang
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Lingtao Kong
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Qian Zhou
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Huanhuan Li
- Department of Radiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Feng Wu
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Zhe Wang
- Department of Psychiatry, Liaoning Provincial Mental Center, Kaiyuan, Liaoning, China
| | - Ke Xu
- Department of Radiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Fei Wang
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China; Department of Radiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China.
| |
Collapse
|
40
|
Agnew-Blais JC, Buka SL, Fitzmaurice GM, Smoller JW, Goldstein JM, Seidman LJ. Early Childhood IQ Trajectories in Individuals Later Developing Schizophrenia and Affective Psychoses in the New England Family Studies. Schizophr Bull 2015; 41:817-23. [PMID: 25904723 PMCID: PMC4466188 DOI: 10.1093/schbul/sbv027] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Individuals who develop schizophrenia in adulthood exhibit, on average, deficits in childhood cognition relative to healthy controls. However, it remains unclear when in childhood such deficits emerge and whether they are stable across childhood or change (increase or decrease) across development. Importantly, whether the trajectory of childhood cognition differs among youth who later develop affective psychoses (AP) vs schizophrenia as adults remains unresolved. Subjects in the Collaborative Perinatal Project were administered the Stanford-Binet IQ test at age 4 and the Wechsler Intelligence Scale for Children at age 7. A total of 9809 (54.7%) participants in the New England Study sites were tested at both ages, including 37 who later developed schizophrenia spectrum psychoses (SSP) and 39 who later developed AP. Logistic regression models examined the association of level of and change in childhood IQ and later SSP or AP. Lower overall childhood IQ was associated with higher risk of SSP. Additionally, there was a small mean increase in IQ in the SSP group relative to a mean decrease in the control group from age 4 to 7 such that positive change in IQ was significantly associated with a higher risk of SSP. Neither overall level nor change in IQ was associated with risk of AP. The results are consistent with neurocognitive impairment throughout early childhood specifically for children who later develop schizophrenia, affirming the theory of atypical neurodevelopment in premorbid schizophrenia.
Collapse
Affiliation(s)
- Jessica C. Agnew-Blais
- MRC Social, Genetic, and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK;,To whom correspondence should be addressed; MRC Social, Genetic, and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, 16 De Crespigny Park, Denmark Hill, London SE5 8AF, UK; tel: +44 (0) 7715942529, fax: +44 (0) 2078480866, e-mail:
| | - Stephen L. Buka
- Department of Epidemiology, Brown University, Providence, RI
| | - Garrett M. Fitzmaurice
- Harvard Medical School, Laboratory for Psychiatric Biostatistics, McLean Hospital, Belmont, MA;,Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Jordan W. Smoller
- Psychiatric and Neurodevelopmental Genetics Unit, Department of Psychiatry, Massachusetts General Hospital, Boston, MA
| | - Jill M. Goldstein
- Departments of Psychiatry and Medicine, Harvard Medical School, Brigham and Women’s Hospital, Connors Center for Women’s Health & Gender Biology, Boston, MA;,Department of Psychiatry, Massachusetts General Hospital, Boston, MA
| | - Larry J. Seidman
- Department of Psychiatry, Massachusetts General Hospital, Boston, MA;,Department of Psychiatry, Harvard Medical School, Massachusetts Mental Health Center Division of Public Psychiatry, Beth Israel Deaconess Medical Center, Boston, MA
| |
Collapse
|
41
|
van der Velde J, Gromann PM, Swart M, de Haan L, Wiersma D, Bruggeman R, Krabbendam L, Aleman A. Grey matter, an endophenotype for schizophrenia? A voxel-based morphometry study in siblings of patients with schizophrenia. J Psychiatry Neurosci 2015; 40:207-13. [PMID: 25768029 PMCID: PMC4409438 DOI: 10.1503/jpn.140064] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Grey matter, both volume and concentration, has been proposed as an endophenotype for schizophrenia given a number of reports of grey matter abnormalities in relatives of patients with schizophrenia. However, previous studies on grey matter abnormalities in relatives have produced inconsistent results. The aim of the present study was to examine grey matter differences between controls and siblings of patients with schizophrenia and to examine whether the age, genetic loading or subclinical psychotic symptoms of selected individuals could explain the previously reported inconsistencies. METHODS We compared the grey matter volume and grey matter concentration of healthy siblings of patients with schizophrenia and healthy controls matched for age, sex and education using voxel-based morphometry (VBM). Furthermore, we selected subsamples based on age (< 30 yr), genetic loading and subclinical psychotic symptoms to examine whether this would lead to different results. RESULTS We included 89 siblings and 69 controls in our study. The results showed that siblings and controls did not differ significantly on grey matter volume or concentration. Furthermore, specifically selecting participants based on age, genetic loading or subclinical psychotic symptoms did not alter these findings. LIMITATIONS The main limitation was that subdividing the sample resulted in smaller samples for the subanalyses. Furthermore, we used MRI data from 2 different scanner sites. CONCLUSION These results indicate that grey matter measured through VBM might not be a suitable endophenotype for schizophrenia.
Collapse
Affiliation(s)
- Jorien van der Velde
- Correspondence to: J van der Velde, Department of Neuroscience, Neuroimaging Center, UMCG-O&O, P.O. Box 196, 9700 AD Groningen, The Netherlands;
| | | | | | | | | | | | | | | |
Collapse
|
42
|
Hippocampal Pruning as a New Theory of Schizophrenia Etiopathogenesis. Mol Neurobiol 2015; 53:2065-2081. [PMID: 25902861 DOI: 10.1007/s12035-015-9174-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2014] [Accepted: 04/13/2015] [Indexed: 12/20/2022]
Abstract
Pruning in neurons has been suggested to be strongly involved in Schizophrenia's (SKZ) etiopathogenesis in recent biological, imaging, and genetic studies. We investigated the impact of protein-coding genes known to be involved in pruning, collected by a systematic literature research, in shaping the risk for SKZ in a case-control sample of 9,490 subjects (Psychiatric Genomics Consortium). Moreover, their modifications through evolution (humans, chimpanzees, and rats) and subcellular localization (as indicative of their biological function) were also investigated. We also performed a biological pathways (Gene Ontology) analysis. Genetics analyses found four genes (DLG1, NOS1, THBS4, and FADS1) and 17 pathways strongly involved in pruning and SKZ in previous literature findings to be significantly associated with the sample under analysis. The analysis of the subcellular localization found that secreted genes, and so regulatory ones, are the least conserved through evolution and also the most associated with SKZ. Their cell line and regional brain expression analysis found that their areas of primary expression are neuropil and the hippocampus, respectively. At the best of our knowledge, for the first time, we were able to describe the SKZ neurodevelopmental hypothesis starting from a single biological process. We can also hypothesize how alterations in pruning fine regulation and orchestration, strongly related with the evolutionary newest (and so more sensitive) secreted proteins, may be of particular relevance in the hippocampus. This early alteration may lead to a mis-structuration of neural connectivity, resulting in the different brain alteration that characterizes SKZ patients.
Collapse
|
43
|
Woodberry KA, Serur RA, Hallinan SB, Mesholam-Gately RI, Giuliano AJ, Wojcik JD, Keshavan MS, Frazier JA, Goldstein JM, Shenton ME, McCarley RW, Seidman LJ. Frequency and pattern of childhood symptom onset reported by first episode schizophrenia and clinical high risk youth. Schizophr Res 2014; 158:45-51. [PMID: 24924404 PMCID: PMC4207713 DOI: 10.1016/j.schres.2014.05.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 05/13/2014] [Accepted: 05/16/2014] [Indexed: 01/07/2023]
Abstract
BACKGROUND Psychosis prevention and early intervention efforts in schizophrenia have focused increasingly on sub-threshold psychotic symptoms in adolescents and young adults. Although many youth report symptom onset prior to adolescence, the childhood incidence of prodromal-level symptoms in those with schizophrenia or related psychoses is largely unknown. METHODS This study reports on the retrospective recall of prodromal-level symptoms from 40 participants in a first-episode of schizophrenia (FES) and 40 participants at "clinical high risk" (CHR) for psychosis. Onset of positive and non-specific symptoms was captured using the Structured Interview for Prodromal Syndromes. Frequencies are reported according to onset during childhood (prior to age 13), adolescence (13-17), or adulthood (18+). RESULTS Childhood-onset of attenuated psychotic symptoms was not rare. At least 11% of FES and 23% of CHR reported specific recall of childhood-onset of unusual or delusional ideas, suspiciousness, or perceptual abnormalities. Most recalled experiencing non-specific symptoms prior to positive symptoms. CHR and FES did not differ significantly in the timing of positive and non-specific symptom onset. Other than being younger at assessment, those with childhood onset did not differ demographically from those with later onset. CONCLUSION Childhood-onset of initial psychotic-like symptoms may be more common than previous research has suggested. Improved characterization of these symptoms and a focus on their predictive value for subsequent schizophrenia and other major psychoses are needed to facilitate screening of children presenting with attenuated psychotic symptoms. Accurate detection of prodromal symptoms in children might facilitate even earlier intervention and the potential to alter pre-illness trajectories.
Collapse
Affiliation(s)
- Kristen A Woodberry
- Massachusetts Mental Health Center Public Psychiatry Division of the Beth Israel Deaconess Medical Center, Boston, MA, United States; Department of Psychiatry, Harvard Medical School, Boston, MA, United States.
| | - Rachael A Serur
- Massachusetts Mental Health Center Public Psychiatry Division of the Beth Israel Deaconess Medical Center, Boston, MA, United States
| | - Sean B Hallinan
- Massachusetts Mental Health Center Public Psychiatry Division of the Beth Israel Deaconess Medical Center, Boston, MA, United States
| | - Raquelle I Mesholam-Gately
- Massachusetts Mental Health Center Public Psychiatry Division of the Beth Israel Deaconess Medical Center, Boston, MA, United States; Department of Psychiatry, Harvard Medical School, Boston, MA, United States
| | - Anthony J Giuliano
- Massachusetts Mental Health Center Public Psychiatry Division of the Beth Israel Deaconess Medical Center, Boston, MA, United States; Department of Psychiatry, Harvard Medical School, Boston, MA, United States; Department of Psychology, Worcester Recovery Center and Hospital, Worcester, MA, United States
| | - Joanne D Wojcik
- Massachusetts Mental Health Center Public Psychiatry Division of the Beth Israel Deaconess Medical Center, Boston, MA, United States; Department of Psychiatry, Harvard Medical School, Boston, MA, United States
| | - Matcheri S Keshavan
- Massachusetts Mental Health Center Public Psychiatry Division of the Beth Israel Deaconess Medical Center, Boston, MA, United States; Department of Psychiatry, Harvard Medical School, Boston, MA, United States
| | - Jean A Frazier
- Department of Psychiatry, University of Massachusetts Medical School, Worcester, MA, United States; University of Massachusetts Memorial Health Care, Worcester, MA, United States
| | - Jill M Goldstein
- Department of Psychiatry, Harvard Medical School, Boston, MA, United States; Department of Psychiatry, Brigham and Women's Hospital, Boston, MA, United States; Department of Medicine, Brigham and Women's Hospital, Division of Women's Health, Connors Center for Women's Health and Gender Biology, Boston, MA, United States; Department of Medicine, Harvard Medical School, Boston, MA, United States; Department of Psychiatry, Division of Psychiatric Neuroscience, Massachusetts General Hospital, Boston, MA, United States
| | - Martha E Shenton
- Department of Psychiatry, Harvard Medical School, Boston, MA, United States; Department of Radiology, Brigham and Women's Hospital, Boston, MA, United States; Department of Radiology, Harvard Medical School, Boston, MA, United States; Veterans Affairs Boston Healthcare System, Brockton, MA, United States; Department of Radiology, Brigham and Women's Hospital, Boston, MA, United States
| | - Robert W McCarley
- Department of Psychiatry, Harvard Medical School, Boston, MA, United States; Veterans Affairs Boston Healthcare System, Brockton, MA, United States
| | - Larry J Seidman
- Massachusetts Mental Health Center Public Psychiatry Division of the Beth Israel Deaconess Medical Center, Boston, MA, United States; Department of Psychiatry, Harvard Medical School, Boston, MA, United States
| |
Collapse
|
44
|
Li Y, Cao F, Shao D, Xue J. Ecological assessment of executive functions in adolescents genetically at high risk for schizophrenia. Compr Psychiatry 2014; 55:1350-7. [PMID: 24850068 DOI: 10.1016/j.comppsych.2014.04.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2014] [Revised: 04/08/2014] [Accepted: 04/08/2014] [Indexed: 10/25/2022] Open
Abstract
OBJECTIVE This study sought to examine specific executive deficits in the real-life environment among adolescents genetically at high risk for schizophrenia and understand the role of the genetic risk, victimization and family functioning, and their interaction on the deficits. METHODS The study included 96 non-affected adolescent offspring and siblings of patients with schizophrenia in the high-risk group (HR) and 193 healthy adolescents in the healthy control group (HC), all aged between 9 and 20 years. All participants completed assessments of executive functions (EFs), victimization, and family functioning. RESULTS The multivariate analysis revealed that the HR group reported more difficulties on the Shift, Plan/Organize, and Task Completion scale than the HC group. Significant main effects were also detected for victimization level on all domains of EFs and for adaptability level on Inhibit, Working Memory, Plan, and Task Completion scales. Besides, the group×victimization level interactions were significant for Working Memory and Task Completion scales. Hierarchical regression analysis revealed that the genetic risk and victimization were predictors of executive deficits. CONCLUSIONS The HR group showed impaired EFs in the everyday environment. And, the genetic risk for schizophrenia and victimization may be related to executive dysfunction. Our results may provide clues about explaining the mechanisms of executive impairments in the HR group and help to identify new targets for early interventions.
Collapse
Affiliation(s)
- Yang Li
- School of Nursing, Shandong University, No.44 Wenhua Xi Road, Jinan, Shandong, 250012 P.R. China
| | - Fenglin Cao
- School of Nursing, Shandong University, No.44 Wenhua Xi Road, Jinan, Shandong, 250012 P.R. China.
| | - Di Shao
- School of Nursing, Shandong University, No.44 Wenhua Xi Road, Jinan, Shandong, 250012 P.R. China
| | - Jiaomei Xue
- School of Nursing, Shandong University, No.44 Wenhua Xi Road, Jinan, Shandong, 250012 P.R. China
| |
Collapse
|
45
|
Butjosa A, Gómez-Benito J, Ochoa S. Acontecimientos vitales estresantes y primer episodio psicótico. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.psiq.2014.05.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
46
|
Self-disturbances as a possible premorbid indicator of schizophrenia risk: a neurodevelopmental perspective. Schizophr Res 2014; 152:73-80. [PMID: 23932148 PMCID: PMC3877695 DOI: 10.1016/j.schres.2013.07.038] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Revised: 07/17/2013] [Accepted: 07/19/2013] [Indexed: 02/07/2023]
Abstract
Self-disturbances (SDs) are increasingly identified in schizophrenia and are theorized to confer vulnerability to psychosis. Neuroimaging research has shed some light on the neural correlates of SDs in schizophrenia. But, the onset and trajectory of the neural alterations underlying SDs in schizophrenia remain incompletely understood. We hypothesize that the aberrant structure and function of brain areas (e.g., prefrontal, lateral temporal, and parietal cortical structures) comprising the "neural circuitry of self" may represent an early, premorbid (i.e., pre-prodromal) indicator of schizophrenia risk. Consistent with neurodevelopmental models, we argue that "early" (i.e., perinatal) dysmaturational processes (e.g., abnormal cortical neural cell migration and mini-columnar formation) affecting key prefrontal (e.g., medial prefrontal cortex), lateral temporal cortical (e.g., superior temporal sulcus), and parietal (e.g., inferior parietal lobule) structures involved in self-processing may lead to subtle disruptions of "self" during childhood in persons at risk for schizophrenia. During adolescence, progressive neurodevelopmental alterations (e.g., aberrant synaptic pruning) affecting the neural circuitry of self may contribute to worsening of SDs. This could result in the emergence of prodromal symptoms and, eventually, full-blown psychosis. To highlight why adolescence may be a period of heightened risk for SDs, we first summarize the literature regarding the neural correlates of self in typically developing children. Next, we present evidence from neuroimaging studies in genetic high-risk youth suggesting that fronto-temporal-parietal structures mediating self-reflection may be abnormal in the premorbid period. Our goal is that the ideas presented here might provide future directions for research into the neurobiology of SDs during the pre-psychosis development of youth at risk for schizophrenia.
Collapse
|
47
|
Diwadkar VA, Bakshi N, Gupta G, Pruitt P, White R, Eickhoff SB. Dysfunction and Dysconnection in Cortical-Striatal Networks during Sustained Attention: Genetic Risk for Schizophrenia or Bipolar Disorder and its Impact on Brain Network Function. Front Psychiatry 2014; 5:50. [PMID: 24847286 PMCID: PMC4023040 DOI: 10.3389/fpsyt.2014.00050] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Accepted: 04/28/2014] [Indexed: 01/08/2023] Open
Abstract
Abnormalities in the brain's attention network may represent early identifiable neurobiological impairments in individuals at increased risk for schizophrenia or bipolar disorder. Here, we provide evidence of dysfunctional regional and network function in adolescents at higher genetic risk for schizophrenia or bipolar disorder [henceforth higher risk (HGR)]. During fMRI, participants engaged in a sustained attention task with variable demands. The task alternated between attention (120 s), visual control (passive viewing; 120 s), and rest (20 s) epochs. Low and high demand attention conditions were created using the rapid presentation of two- or three-digit numbers. Subjects were required to detect repeated presentation of numbers. We demonstrate that the recruitment of cortical and striatal regions are disordered in HGR: relative to typical controls (TC), HGR showed lower recruitment of the dorsal prefrontal cortex, but higher recruitment of the superior parietal cortex. This imbalance was more dramatic in the basal ganglia. There, a group by task demand interaction was observed, such that increased attention demand led to increased engagement in TC, but disengagement in HGR. These activation studies were complemented by network analyses using dynamic causal modeling. Competing model architectures were assessed across a network of cortical-striatal regions, distinguished at a second level using random-effects Bayesian model selection. In the winning architecture, HGR were characterized by significant reductions in coupling across both frontal-striatal and frontal-parietal pathways. The effective connectivity analyses indicate emergent network dysconnection, consistent with findings in patients with schizophrenia. Emergent patterns of regional dysfunction and dysconnection in cortical-striatal pathways may provide functional biological signatures in the adolescent risk-state for psychiatric illness.
Collapse
Affiliation(s)
- Vaibhav A Diwadkar
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University , Detroit, MI , USA
| | - Neil Bakshi
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University , Detroit, MI , USA
| | - Gita Gupta
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University , Detroit, MI , USA
| | - Patrick Pruitt
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University , Detroit, MI , USA
| | - Richard White
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University , Detroit, MI , USA
| | - Simon B Eickhoff
- Institute of Clinical Neuroscience and Medical Psychology, Heinrich-Heine University Düsseldorf , Düsseldorf , Germany ; Institute of Neuroscience and Medicine (INM-1), Research Center Jülich , Jülich , Germany
| |
Collapse
|
48
|
Diwadkar VA, Bustamante A, Rai H, Uddin M. Epigenetics, stress, and their potential impact on brain network function: a focus on the schizophrenia diatheses. Front Psychiatry 2014; 5:71. [PMID: 25002852 PMCID: PMC4066368 DOI: 10.3389/fpsyt.2014.00071] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Accepted: 06/04/2014] [Indexed: 01/21/2023] Open
Abstract
The recent sociodevelopmental cognitive model of schizophrenia/psychosis is a highly influential and compelling compendium of research findings. Here, we present logical extensions to this model incorporating ideas drawn from epigenetic mediation of psychiatric disease, and the plausible effects of epigenetics on the emergence of brain network function and dysfunction in adolescence. We discuss how gene-environment interactions, effected by epigenetic mechanisms, might in particular mediate the stress response (itself heavily implicated in the emergence of schizophrenia). Next, we discuss the plausible relevance of this framework for adolescent genetic risk populations, a risk group characterized by vexing and difficult-to-explain heterogeneity. We then discuss how exploring relationships between epigenetics and brain network dysfunction (a strongly validated finding in risk populations) can enhance understanding of the relationship between stress, epigenetics, and functional neurobiology, and the relevance of this relationship for the eventual emergence of schizophrenia/psychosis. We suggest that these considerations can expand the impact of models such as the sociodevelopmental cognitive model, increasing their explanatory reach. Ultimately, integration of these lines of research may enhance efforts of early identification, intervention, and treatment in adolescents at-risk for schizophrenia.
Collapse
Affiliation(s)
- Vaibhav A Diwadkar
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine , Detroit, MI , USA
| | - Angela Bustamante
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine , Detroit, MI , USA
| | - Harinder Rai
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine , Detroit, MI , USA
| | - Monica Uddin
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine , Detroit, MI , USA ; Center for Molecular Medicine and Genetics, Wayne State University School of Medicine , Detroit, MI , USA
| |
Collapse
|
49
|
Peut-on prédire, dès l’enfance, les risques de développer la schizophrénie à l’âge adulte ? Une étude rétrospective centrée sur l’hypersensibilité prémorbide ; premiers résultats. ANNALES MEDICO-PSYCHOLOGIQUES 2013. [DOI: 10.1016/j.amp.2011.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
50
|
Park HY, Hwang JY, Jung WH, Shin NY, Shim G, Jang JH, Kwon JS. Altered asymmetry of the anterior cingulate cortex in subjects at genetic high risk for psychosis. Schizophr Res 2013; 150:512-8. [PMID: 24035404 DOI: 10.1016/j.schres.2013.08.027] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Revised: 08/15/2013] [Accepted: 08/19/2013] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Many studies have reported that patients with schizophrenia often have structural abnormalities of the anterior cingulate cortex (ACC) and that some of these seem to be of genetic origin, therefore predating the onset of illness. The present study aimed to investigate whether these alterations in the ACC are genetic in origin by comparing the morphological patterns of three groups: normal controls, subjects at genetic high risk (GHR) for psychosis, and patients with schizophrenia. The relationships between morphological variations and executive function were also investigated. METHODS This study examined the magnetic resonance images of cingulate sulcus/paracingulate sulcus (CS/PCS) folding patterns in 222 subjects (103 normal subjects, 30 individuals at GHR, and 89 patients with schizophrenia) and evaluated differences in the morphological and asymmetrical patterns of the ACC among groups. Neurocognitive tests were then performed and differences in cognitive performance were analyzed according to morphological variation. RESULTS Differences in PCS folding were detected; the control group was significantly more likely than were other groups to show a well-developed left PCS (p=0.009) and leftward asymmetry of the PCS (p<0.001). However, neither GHR subjects (p=0.346) nor patients (p=0.784) showed this leftward asymmetry. No statistically significant differences in CS continuity were observed. A more prominent left PCS (p=0.031) and leftward PCS asymmetry (p=0.030) were both associated with higher scores on the working memory task. CONCLUSION The results suggest that GHR subjects have distinct neurodevelopmental anomalies that resemble those of patients with schizophrenia even though they do not display any psychotic symptoms. Certain developmental alterations in the ACC, such as the loss of leftward sulcal asymmetry in patients with schizophrenia, might be related to genetic factors. Additionally, this morphological alteration might partly account for the impaired executive function in schizophrenia.
Collapse
Affiliation(s)
- Hye Youn Park
- Department of Psychiatry, Seoul National University College of Medicine, Seoul, Republic of Korea
| | | | | | | | | | | | | |
Collapse
|