1
|
Cai B, Zhu Y, Liu D, Li Y, Bueber M, Yang X, Luo G, Su Y, Grivel MM, Yang LH, Qian M, Stone WS, Phillips MR. Use of the Chinese version of the MATRICS Consensus Cognitive Battery to assess cognitive functioning in individuals with high risk for psychosis, first-episode schizophrenia and chronic schizophrenia: a systematic review and meta-analysis. THE LANCET REGIONAL HEALTH. WESTERN PACIFIC 2024; 45:101016. [PMID: 38699289 PMCID: PMC11064724 DOI: 10.1016/j.lanwpc.2024.101016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 12/18/2023] [Accepted: 01/10/2024] [Indexed: 05/05/2024]
Abstract
More than one hundred studies have used the mainland Chinese version of the MATRICS Consensus Cognitive Battery (MCCB) to assess cognition in schizophrenia, but the results of these studies, the quality of the reports, and the strength of the evidence provided in the reports have not been systematically assessed. We identified 114 studies from English-language and Chinese-language databases that used the Chinese MCCB to assess cognition in combined samples of 7394 healthy controls (HC), 392 individuals with clinical high risk for psychosis (CHR-P), 4922 with first-episode schizophrenia (FES), 1549 with chronic schizophrenia (CS), and 2925 with schizophrenia of unspecified duration. The mean difference (MD) of the composite MCCB T-score (-13.72) and T-scores of each of the seven cognitive domains assessed by MCCB (-14.27 to -7.92) were significantly lower in individuals with schizophrenia than in controls. Meta-analysis identified significantly greater cognitive impairment in FES and CS than in CHR-P in six of the seven domains and significantly greater impairment in CS than FES in the reasoning and problem-solving domain (i.e., executive functioning). The only significant covariate of overall cognitive functioning in individuals with schizophrenia was a negative association with the severity of psychotic symptoms. These results confirm the construct validity of the mainland Chinese version of MCCB. However, there were significant limitations in the strength of the evidence provided about CHR-P (small pooled sample sizes) and the social cognition domain (inconsistency of results across studies), and the quality of many reports (particularly those published in Chinese) was rated 'poor' due to failure to report sample size calculations, matching procedures or methods of handling missing data. Moreover, almost all studies were cross-sectional studies limited to persons under 60 with at least nine years of education, so longitudinal studies of under-educated, older individuals with schizophrenia are needed.
Collapse
Affiliation(s)
- Bing Cai
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yikang Zhu
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dongyang Liu
- School of Public Health of Guangxi Medical University, Nanning, Guangxi, China
| | - Yaxi Li
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Marlys Bueber
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xuezhi Yang
- The Fifth People's Hospital, Nanning, Guangxi, China
| | - Guoshuai Luo
- Mental Health Center of Tianjin Medical University, Tianjin Anding Hospital, Tianjin, China
| | - Ying Su
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Margaux M. Grivel
- Department of Social and Behavioral Sciences, School of Global Public Health, New York University, New York, NY, USA
| | - Lawrence H. Yang
- Department of Social and Behavioral Sciences, School of Global Public Health, New York University, New York, NY, USA
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Min Qian
- Biostatistics, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - William S. Stone
- Department of Psychiatry, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Michael R. Phillips
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA
- Department of Psychiatry, Columbia University, New York, NY, USA
| |
Collapse
|
2
|
Segura AG, Mezquida G, Martínez-Pinteño A, Gassó P, Rodriguez N, Moreno-Izco L, Amoretti S, Bioque M, Lobo A, González-Pinto A, García-Alcon A, Roldán-Bejarano A, Vieta E, de la Serna E, Toll A, Cuesta MJ, Mas S, Bernardo M. Link between cognitive polygenic risk scores and clinical progression after a first-psychotic episode. Psychol Med 2023; 53:4634-4647. [PMID: 35678455 PMCID: PMC10388335 DOI: 10.1017/s0033291722001544] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 05/05/2022] [Accepted: 05/09/2022] [Indexed: 11/05/2022]
Abstract
BACKGROUND Clinical intervention in early stages of psychotic disorders is crucial for the prevention of severe symptomatology trajectories and poor outcomes. Genetic variability is studied as a promising modulator of prognosis, thus novel approaches considering the polygenic nature of these complex phenotypes are required to unravel the mechanisms underlying the early progression of the disorder. METHODS The sample comprised of 233 first-episode psychosis (FEP) subjects with clinical and cognitive data assessed periodically for a 2-year period and 150 matched controls. Polygenic risk scores (PRSs) for schizophrenia, bipolar disorder, depression, education attainment and cognitive performance were used to assess the genetic risk of FEP and to characterize their association with premorbid, baseline and progression of clinical and cognitive status. RESULTS Schizophrenia, bipolar disorder and cognitive performance PRSs were associated with an increased risk of FEP [false discovery rate (FDR) ⩽ 0.027]. In FEP patients, increased cognitive PRSs were found for FEP patients with more cognitive reserve (FDR ⩽ 0.037). PRSs reflecting a genetic liability for improved cognition were associated with a better course of symptoms, functionality and working memory (FDR ⩽ 0.039). Moreover, the PRS of depression was associated with a worse trajectory of the executive function and the general cognitive status (FDR ⩽ 0.001). CONCLUSIONS Our study provides novel evidence of the polygenic bases of psychosis and its clinical manifestation in its first stage. The consistent effect of cognitive PRSs on the early clinical progression suggests that the mechanisms underlying the psychotic episode and its severity could be partially independent.
Collapse
Affiliation(s)
- Alex G. Segura
- Department of Clinical Foundations, Pharmacology Unit, University of Barcelona, Barcelona, Spain
| | - Gisela Mezquida
- Department of Clinical Foundations, Pharmacology Unit, University of Barcelona, Barcelona, Spain
- Barcelona Clínic Schizophrenia Unit, Neuroscience Institute Hospital Clínic de Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain
- Institut d'investigacions Biomèdiques August Pi i Sunyer (IDIBAPs), Barcelona, Spain
| | - Albert Martínez-Pinteño
- Department of Clinical Foundations, Pharmacology Unit, University of Barcelona, Barcelona, Spain
| | - Patricia Gassó
- Department of Clinical Foundations, Pharmacology Unit, University of Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain
- Institut d'investigacions Biomèdiques August Pi i Sunyer (IDIBAPs), Barcelona, Spain
| | - Natalia Rodriguez
- Department of Clinical Foundations, Pharmacology Unit, University of Barcelona, Barcelona, Spain
| | - Lucía Moreno-Izco
- Department of Psychiatry, Complejo Hospitalario de Navarra, Pamplona, Spain
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
| | - Silvia Amoretti
- Barcelona Clínic Schizophrenia Unit, Neuroscience Institute Hospital Clínic de Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain
- Group of Psychiatry, Mental Health and Addictions, Psychiatric Genetics Unit, Vall d'Hebron Research Institute (VHIR), Barcelona, Spain
- Bipolar and Depressive Disorders Unit, Institute of Neuroscience, Hospital Clinic, University of Barcelona, Barcelona, Spain
| | - Miquel Bioque
- Barcelona Clínic Schizophrenia Unit, Neuroscience Institute Hospital Clínic de Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain
- Institut d'investigacions Biomèdiques August Pi i Sunyer (IDIBAPs), Barcelona, Spain
- Department of Medicine, University of Barcelona, Barcelona, Spain
| | - Antonio Lobo
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain
- Department of Medicine and Psychiatry, Universidad de Zaragoza, Zaragoza, Spain
- Instituto de Investigación Sanitaria Aragón (IIS Aragón), Zaragoza, Spain
| | - Ana González-Pinto
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain
- Hospital Universitario de Alava, Vitoria-Gasteiz, Spain
- Instituto de Investigación Sanitaria Bioaraba, Vitoria-Gasteiz, Spain
- University of the Basque Country, Vizcaya, Spain
| | - Alicia García-Alcon
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain
| | - Alexandra Roldán-Bejarano
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain
- Psychiatry Department, Institut d'Investigació Biomèdica-SantPau (IIB-SANTPAU), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Eduard Vieta
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain
- Bipolar and Depressive Disorders Unit, Institute of Neuroscience, Hospital Clinic, University of Barcelona, Barcelona, Spain
- Department of Medicine, University of Barcelona, Barcelona, Spain
| | - Elena de la Serna
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain
- Institut d'investigacions Biomèdiques August Pi i Sunyer (IDIBAPs), Barcelona, Spain
- Department of Medicine, University of Barcelona, Barcelona, Spain
- Department of Child and Adolescent Psychiatry and Psychology, Clínic Institute of Neurosciences, University of Barcelona, Barcelona, Spain
| | - Alba Toll
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain
- Institute of Neuropsychiatry and Addiction, Parc de Salut Mar, Barcelona, Spain
- Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - Manuel J. Cuesta
- Department of Psychiatry, Complejo Hospitalario de Navarra, Pamplona, Spain
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
| | - Sergi Mas
- Department of Clinical Foundations, Pharmacology Unit, University of Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain
- Institut d'investigacions Biomèdiques August Pi i Sunyer (IDIBAPs), Barcelona, Spain
| | - Miquel Bernardo
- Barcelona Clínic Schizophrenia Unit, Neuroscience Institute Hospital Clínic de Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain
- Institut d'investigacions Biomèdiques August Pi i Sunyer (IDIBAPs), Barcelona, Spain
- Department of Medicine, University of Barcelona, Barcelona, Spain
| | - PEPs Group
- Department of Clinical Foundations, Pharmacology Unit, University of Barcelona, Barcelona, Spain
| |
Collapse
|
3
|
Ayesa-Arriola R, Miguel-Corredera M, de la Foz VOG, Neergaard KD, Correa-Ghisays P, Setién-Suero E, Crespo-Facorro B. Education and long-term outcomes in first episode psychosis: 10-year follow-up study of the PAFIP cohort. Psychol Med 2023; 53:66-77. [PMID: 33952364 DOI: 10.1017/s0033291721001112] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
BACKGROUND Lower levels of education have been associated with the development of psychosis. Investigating educational achievement in the first episode of psychosis (FEP) patients may shed light on the origins of the alterations and on the variability of outcomes in psychotic disorders. METHODS Education achievement was explored in a large sample (n = 659) of FEP patients enrolled in programa de atención a fases iniciales de psicosis (PAFIP), a research and assistance program conducted in Spain. Patients were stratified according to the Spanish educational system according to their attendance in primary (low), secondary (medium) or university studies (high). The three groups were compared on available premorbid, clinical and neuropsychological variables. A subgroup of patients (n = 209), comprising the 10-year follow-up PAFIP cohort, were again compared. RESULTS Overall, 49% and 37% of FEP patients had low and medium levels of education, respectively. In total, 13% of the patients with a higher level of education were more frequently women (64%) and older at illness onset (36 years old), reported better premorbid adjustment, presented less severe positive symptoms and better functioning; and showed higher premorbid intelligence quotient and better performance on all the explored cognitive domains. Ten years later the FEP patients in the medium- and high-education groups had good global functioning and a neurocognitive performance within the normal limits. CONCLUSIONS Higher education is associated with better initial conditions and more favourable outcomes after an FEP. Sharing this information with the world's educational systems is essential to targeting resources and designing innovative programs or strategies to compensate for student difficulties.
Collapse
Affiliation(s)
- Rosa Ayesa-Arriola
- Department of Psychiatry, Marqués de Valdecilla University Hospital, IDIVAL, School of Medicine, University of Cantabria, Santander, Spain
- Centro Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain
| | - Margarita Miguel-Corredera
- Department of Psychiatry, Marqués de Valdecilla University Hospital, IDIVAL, School of Medicine, University of Cantabria, Santander, Spain
| | - Victor Ortiz-García de la Foz
- Department of Psychiatry, Marqués de Valdecilla University Hospital, IDIVAL, School of Medicine, University of Cantabria, Santander, Spain
| | | | - Patricia Correa-Ghisays
- Centro Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain
- Faculty of Psychology and TMAP, Department of Medicine, University of Valencia, INCLIVA Health Research Institute, Valencia, Spain
| | - Esther Setién-Suero
- Department of Psychiatry, Marqués de Valdecilla University Hospital, IDIVAL, School of Medicine, University of Cantabria, Santander, Spain
| | - Benedicto Crespo-Facorro
- Centro Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain
- Department of Psychiatry, Hospital Universitario Virgen del Rocío, Universidad de Sevilla, Instituto de Investigacion Sanitaria de Sevilla, IBiS, Sevilla, Spain
| |
Collapse
|
4
|
Flaaten CB, Melle I, Bjella T, Engen MJ, Åsbø G, Wold KF, Widing L, Gardsjord E, Sæther LS, Øie MG, Lyngstad SH, Haatveit B, Simonsen C, Ueland T. Domain-specific cognitive course in schizophrenia: Group- and individual-level changes over 10 years. Schizophr Res Cogn 2022; 30:100263. [PMID: 35783460 PMCID: PMC9240854 DOI: 10.1016/j.scog.2022.100263] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 06/14/2022] [Accepted: 06/16/2022] [Indexed: 12/02/2022] Open
Abstract
Cognitive impairments in schizophrenia are well-documented, present across several cognitive domains and found to be relatively stable over time. However, there is a high degree of heterogeneity and indications of domain-specific developmental courses. The present study investigated the 10-year cognitive course in participants with first-episode schizophrenia (FES) and healthy controls on eight cognitive domains and a composite score, looking at group- and individual-level changes. A total of 75 FES participants and 91 healthy controls underwent cognitive assessment at baseline and follow-up. Linear mixed models were used for group-level analyses and reliable change index (RCI) analyses were used to investigate individual change. The prevalence of clinically significant impairment was explored at both time points, using a cut-off of < −1.5 SD, with significant cognitive impairment defined as impairment on ≥2 domains. Group-level analyses found main effects of group and time, and time by group interactions. Memory, psychomotor processing speed and verbal fluency improved, while learning, mental processing speed and working memory were stable in both groups. FES participants showed deteriorations in attention and cognitive control. Individual-level analyses mainly indicated stability in both FES and controls, except for a higher prevalence of decline in cognitive control in FES. At baseline, 68.8 % of FES participants had clinically significant impairment, compared to 62.3 % at follow-up. We mainly found long-term stability and modest increases in cognition over time in FES, as well as a high degree of within-group heterogeneity. We also found indications of deterioration in participants with worse cognitive performance at baseline.
Collapse
Affiliation(s)
- Camilla Bärthel Flaaten
- NORMENT, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, P. O. box 4956 Nydalen, 0424 Oslo, Norway
- Department of Psychology, University of Oslo, Forskningsveien 3A, 0373 Oslo, Norway
- Corresponding author at: NORMENT, Oslo University Hospital, Division of Mental Health and Addiction, P.O. Box 4956 Nydalen, 0424 Oslo, Norway.
| | - Ingrid Melle
- NORMENT, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, P. O. box 4956 Nydalen, 0424 Oslo, Norway
| | - Thomas Bjella
- NORMENT, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, P. O. box 4956 Nydalen, 0424 Oslo, Norway
| | - Magnus Johan Engen
- Division of Mental Health and Addiction, Nydalen DPS, Oslo University Hospital, P.O. Box 4956 Nydalen, 0424 Oslo, Norway
| | - Gina Åsbø
- NORMENT, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, P. O. box 4956 Nydalen, 0424 Oslo, Norway
| | - Kristin Fjelnseth Wold
- NORMENT, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, P. O. box 4956 Nydalen, 0424 Oslo, Norway
| | - Line Widing
- NORMENT, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, P. O. box 4956 Nydalen, 0424 Oslo, Norway
| | - Erlend Gardsjord
- Division of Mental Health and Addiction, Unit for Early Intervention in Psychosis, Oslo University Hospital, P.O. Box 4956 Nydalen, 0424 Oslo, Norway
| | - Linn-Sofie Sæther
- NORMENT, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, P. O. box 4956 Nydalen, 0424 Oslo, Norway
- Department of Psychology, University of Oslo, Forskningsveien 3A, 0373 Oslo, Norway
| | - Merete Glenne Øie
- Department of Psychology, University of Oslo, Forskningsveien 3A, 0373 Oslo, Norway
| | - Siv Hege Lyngstad
- Division of Mental Health and Addiction, Nydalen DPS, Oslo University Hospital, P.O. Box 4956 Nydalen, 0424 Oslo, Norway
| | - Beathe Haatveit
- NORMENT, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, P. O. box 4956 Nydalen, 0424 Oslo, Norway
| | - Carmen Simonsen
- NORMENT, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, P. O. box 4956 Nydalen, 0424 Oslo, Norway
- Early Intervention in Psychosis Advisory Unit for South East Norway, Division of Mental Health and Addiction, Oslo University Hospital, P. O. box 4956 Nydalen, 0424 Oslo, Norway
| | - Torill Ueland
- NORMENT, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, P. O. box 4956 Nydalen, 0424 Oslo, Norway
- Department of Psychology, University of Oslo, Forskningsveien 3A, 0373 Oslo, Norway
| |
Collapse
|
5
|
Stone WS, Phillips MR, Yang LH, Kegeles LS, Susser ES, Lieberman JA. Neurodegenerative model of schizophrenia: Growing evidence to support a revisit. Schizophr Res 2022; 243:154-162. [PMID: 35344853 PMCID: PMC9189010 DOI: 10.1016/j.schres.2022.03.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 03/07/2022] [Accepted: 03/11/2022] [Indexed: 12/21/2022]
Abstract
Multidimensional progressive declines in the absence of standard biomarkers for neurodegeneration are observed commonly in the development of schizophrenia, and are accepted as consistent with neurodevelopmental etiological hypotheses to explain the origins of the disorder. Far less accepted is the possibility that neurodegenerative processes are involved as well, or even that key dimensions of function, such as cognition and aspects of biological integrity, such as white matter function, decline in chronic schizophrenia beyond levels associated with normal aging. We propose that recent research germane to these issues warrants a current look at the question of neurodegeneration. We propose the view that a neurodegenerative hypothesis provides a better explanation of some features of chronic schizophrenia, including accelerated aging, than is provided by neurodevelopmental hypotheses. Moreover, we suggest that neurodevelopmental influences in early life, including those that may extend to later life, do not preclude the development of neurodegenerative processes in later life, including some declines in cognitive and biological integrity. We evaluate these views by integrating recent findings in representative domains such as cognition and white and gray matter integrity with results from studies on accelerated aging, together with functional implications of neurodegeneration for our understanding of chronic schizophrenia.
Collapse
Affiliation(s)
- William S. Stone
- Harvard Medical School Department of Psychiatry at Beth Israel Deaconess Medical Center, Boston, Massachusetts,Corresponding Author: William S. Stone, Ph.D., Massachusetts Mental Health Center, 75 Fenwood Road, Boston, Massachusetts, USA,
| | - Michael R. Phillips
- Shanghai Mental Health Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, Shanghai, China,Department of Epidemiology, Columbia University Mailman School of Public Health, New York, New York
| | - Lawrence H. Yang
- Department of Epidemiology, Columbia University Mailman School of Public Health, New York, New York,New York University College of Global Public Health, New York, New York
| | - Lawrence S. Kegeles
- Department of Psychiatry, Columbia University, New York, New York,New York State Psychiatric Institute, New York, New York
| | - Ezra S. Susser
- Department of Epidemiology, Columbia University Mailman School of Public Health, New York, New York
| | | |
Collapse
|
6
|
Aryutova K, Stoyanov D. Pharmaco-Magnetic Resonance as a Tool for Monitoring the Medication-Related Effects in the Brain May Provide Potential Biomarkers for Psychotic Disorders. Int J Mol Sci 2021; 22:9309. [PMID: 34502214 PMCID: PMC8430741 DOI: 10.3390/ijms22179309] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 08/19/2021] [Accepted: 08/25/2021] [Indexed: 01/04/2023] Open
Abstract
The neurodegenerative and neurodevelopmental hypotheses represent the basic etiological framework for the origin of schizophrenia. Additionally, the dopamine hypothesis, adopted more than two decades ago, has repeatedly asserted the position of dopamine as a pathobiochemical substrate through the action of psychostimulants and neuroleptics on the mesolimbic and mesocortical systems, giving insight into the origin of positive and negative schizophrenic symptoms. Meanwhile, cognitive impairments in schizophrenia remain incompletely understood but are thought to be present during all stages of the disease, as well as in the prodromal, interictal and residual phases. On the other hand, observations on the effects of NMDA antagonists, such as ketamine and phencyclidine, reveal that hypoglutamatergic neurotransmission causes not only positive and negative but also cognitive schizophrenic symptoms. This review aims to summarize the different hypotheses about the origin of psychoses and to identify the optimal neuroimaging method that can serve to unite them in an integral etiological framework. We systematically searched Google scholar (with no concern to the date published) to identify studies investigating the etiology of schizophrenia, with a focus on impaired central neurotransmission. The complex interaction between the dopamine and glutamate neurotransmitter systems provides the long-needed etiological concept, which combines the neurodegenerative hypothesis with the hypothesis of impaired neurodevelopment in schizophrenia. Pharmaco-magnetic resonance imaging is a neuroimaging method that can provide a translation of scientific knowledge about the neural networks and the disruptions in and between different brain regions, into clinically applicable and effective therapeutic results in the management of severe psychotic disorders.
Collapse
Affiliation(s)
| | - Drozdstoy Stoyanov
- Department of Psychiatry and Medical Psychology, Research Institute, Medical University Plovdiv, 4002 Plovdiv, Bulgaria;
| |
Collapse
|
7
|
Fagerlund B, Pantelis C, Jepsen JRM, Raghava JM, Rostrup E, Thomas MB, Nielsen MØ, Bojesen K, Jensen KG, Stentebjerg-Decara M, Klauber DG, Rudå D, Ebdrup BH, Jessen K, Sigvard A, Tangmose K, Jeppesen P, Correll CU, Fink-Jensen A, Pagsberg AK, Glenthøj BY. Differential effects of age at illness onset on verbal memory functions in antipsychotic-naïve schizophrenia patients aged 12-43 years. Psychol Med 2021; 51:1570-1580. [PMID: 32156323 DOI: 10.1017/s0033291720000409] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND The typical onset of schizophrenia coincides with the maturational peak in cognition; however, for a significant proportion of patients the onset is before age 18 and after age 30 years. While cognitive deficits are considered core features of schizophrenia, few studies have directly examined the impact of age of illness onset on cognition. METHODS The aim of the study was to examine if the effects of age on cognition differ between healthy controls (HCs) and patients with schizophrenia at illness onset. We examined 156 first-episode antipsychotic-naïve patients across a wide age span (12-43 years), and 161 age- and sex-matched HCs. Diagnoses were made according to ICD-10 criteria. Cognition was assessed using the Brief Assessment of Cognition in Schizophrenia (BACS), and IQ was estimated using subtests from the Wechsler adult- or child-intelligence scales. Multivariate analysis of covariance (MANCOVA) was used to examine linear and quadratic effects of age on cognitive scores and interactions by group, including sex and parental socioeconomic status as covariates. RESULTS There was a significant overall effect of age on BACS and IQ (p < 0.001). Significant group-by-age interactions for verbal memory (for age-squared, p = 0.009), and digit sequencing (for age, p = 0.01; age-squared, p < 0.001), indicated differential age-related trajectories between patients and HCs. CONCLUSIONS Cognitive functions showing protracted maturation into adulthood, such as verbal memory and verbal working memory, may be particularly impaired in both early- and late-schizophrenia onset. Our findings indicate a potential interaction between the timing of neurodevelopmental maturation and a possible premature age effect in late-onset schizophrenia.
Collapse
Affiliation(s)
- Birgitte Fagerlund
- Center for Neuropsychiatric Schizophrenia Research (CNSR) and Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS), Mental Health Center Glostrup, Glostrup, Denmark
- Department of Psychology, University of Copenhagen, Copenhagen, Denmark
| | - Christos Pantelis
- Center for Neuropsychiatric Schizophrenia Research (CNSR) and Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS), Mental Health Center Glostrup, Glostrup, Denmark
- Department of Psychiatry, Melbourne Neuropsychiatry Centre, University of Melbourne and Melbourne Health, Carlton South, Victoria, Australia
| | - Jens Richardt Møllegaard Jepsen
- Center for Neuropsychiatric Schizophrenia Research (CNSR) and Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS), Mental Health Center Glostrup, Glostrup, Denmark
- Mental Health Services, Capital Region of Denmark, Child and Adolescent Mental Health Center, Copenhagen, Denmark
| | - Jayachandra Mitta Raghava
- Center for Neuropsychiatric Schizophrenia Research (CNSR) and Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS), Mental Health Center Glostrup, Glostrup, Denmark
- Functional Imaging Unit, Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet Glostrup, 2600 Glostrup, Denmark
| | - Egill Rostrup
- Center for Neuropsychiatric Schizophrenia Research (CNSR) and Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS), Mental Health Center Glostrup, Glostrup, Denmark
| | - Marie Bjerregaard Thomas
- Center for Neuropsychiatric Schizophrenia Research (CNSR) and Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS), Mental Health Center Glostrup, Glostrup, Denmark
| | - Mette Ødegaard Nielsen
- Center for Neuropsychiatric Schizophrenia Research (CNSR) and Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS), Mental Health Center Glostrup, Glostrup, Denmark
- University of Copenhagen, Faculty of Health and Medical Sciences, Department of Clinical Medicine, Copenhagen, Denmark
| | - Kirsten Bojesen
- Center for Neuropsychiatric Schizophrenia Research (CNSR) and Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS), Mental Health Center Glostrup, Glostrup, Denmark
| | - Karsten Gjessing Jensen
- Mental Health Services, Capital Region of Denmark, Child and Adolescent Mental Health Center, Copenhagen, Denmark
- University of Copenhagen, Faculty of Health and Medical Sciences, Department of Clinical Medicine, Copenhagen, Denmark
| | - Marie Stentebjerg-Decara
- Mental Health Services, Capital Region of Denmark, Child and Adolescent Mental Health Center, Copenhagen, Denmark
- University of Copenhagen, Faculty of Health and Medical Sciences, Department of Clinical Medicine, Copenhagen, Denmark
| | - Dea Gowers Klauber
- Mental Health Services, Capital Region of Denmark, Child and Adolescent Mental Health Center, Copenhagen, Denmark
- University of Copenhagen, Faculty of Health and Medical Sciences, Department of Clinical Medicine, Copenhagen, Denmark
| | - Ditte Rudå
- Mental Health Services, Capital Region of Denmark, Child and Adolescent Mental Health Center, Copenhagen, Denmark
- University of Copenhagen, Faculty of Health and Medical Sciences, Department of Clinical Medicine, Copenhagen, Denmark
| | - Bjørn H Ebdrup
- Center for Neuropsychiatric Schizophrenia Research (CNSR) and Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS), Mental Health Center Glostrup, Glostrup, Denmark
- University of Copenhagen, Faculty of Health and Medical Sciences, Department of Clinical Medicine, Copenhagen, Denmark
| | - Kasper Jessen
- Center for Neuropsychiatric Schizophrenia Research (CNSR) and Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS), Mental Health Center Glostrup, Glostrup, Denmark
| | - Anne Sigvard
- Center for Neuropsychiatric Schizophrenia Research (CNSR) and Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS), Mental Health Center Glostrup, Glostrup, Denmark
- University of Copenhagen, Faculty of Health and Medical Sciences, Department of Clinical Medicine, Copenhagen, Denmark
| | - Karen Tangmose
- Center for Neuropsychiatric Schizophrenia Research (CNSR) and Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS), Mental Health Center Glostrup, Glostrup, Denmark
- University of Copenhagen, Faculty of Health and Medical Sciences, Department of Clinical Medicine, Copenhagen, Denmark
| | - Pia Jeppesen
- Mental Health Services, Capital Region of Denmark, Child and Adolescent Mental Health Center, Copenhagen, Denmark
- University of Copenhagen, Faculty of Health and Medical Sciences, Department of Clinical Medicine, Copenhagen, Denmark
| | - Christoph U Correll
- The Zucker Hillside Hospital, Department of Psychiatry, Northwell Health, Glen Oaks, NY, USA
- Zucker School of Medicine at Hofstra/Northwell, Department of Psychiatry and Molecular Medicine, Hempstead, NY, USA
- Charité Universitätsmedizin Berlin, Department of Child and Adolescent Psychiatry, Berlin, Germany
| | - Anders Fink-Jensen
- University of Copenhagen, Faculty of Health and Medical Sciences, Department of Clinical Medicine, Copenhagen, Denmark
- Mental Health Center Copenhagen, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Anne Katrine Pagsberg
- Mental Health Services, Capital Region of Denmark, Child and Adolescent Mental Health Center, Copenhagen, Denmark
- University of Copenhagen, Faculty of Health and Medical Sciences, Department of Clinical Medicine, Copenhagen, Denmark
| | - Birte Yding Glenthøj
- Center for Neuropsychiatric Schizophrenia Research (CNSR) and Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS), Mental Health Center Glostrup, Glostrup, Denmark
- University of Copenhagen, Faculty of Health and Medical Sciences, Department of Clinical Medicine, Copenhagen, Denmark
| |
Collapse
|
8
|
Fett AKJ, Velthorst E, Reichenberg A, Ruggero CJ, Callahan JL, Fochtmann LJ, Carlson GA, Perlman G, Bromet EJ, Kotov R. Long-term Changes in Cognitive Functioning in Individuals With Psychotic Disorders: Findings From the Suffolk County Mental Health Project. JAMA Psychiatry 2020; 77:387-396. [PMID: 31825511 PMCID: PMC6990826 DOI: 10.1001/jamapsychiatry.2019.3993] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
IMPORTANCE It remains uncertain whether people with psychotic disorders experience progressive cognitive decline or normal cognitive aging after first hospitalization. This information is essential for prognostication in clinical settings, deployment of cognitive remediation, and public health policy. OBJECTIVE To examine long-term cognitive changes in individuals with psychotic disorders and to compare age-related differences in cognitive performance between people with psychotic disorders and matched control individuals (ie, individuals who had never had psychotic disorders). DESIGN, SETTING, AND PARTICIPANTS The Suffolk County Mental Health Project is an inception cohort study of first-admission patients with psychosis. Cognitive functioning was assessed 2 and 20 years later. Patients were recruited from the 12 inpatient facilities of Suffolk County, New York. At year 20, the control group was recruited by random digit dialing and matched to the clinical cohort on zip code and demographics. Data were collected between September 1991 and July 2015. Analysis began January 2016. MAIN OUTCOMES AND MEASURES Change in cognitive functioning in 6 domains: verbal knowledge (Wechsler Adult Intelligence Scale-Revised vocabulary test), verbal declarative memory (Verbal Paired Associates test I and II), visual declarative memory (Visual Reproduction test I and II), attention and processing speed (Symbol Digit Modalities Test-written and oral; Trail Making Test [TMT]-A), abstraction-executive function (Trenerry Stroop Color Word Test; TMT-B), and verbal fluency (Controlled Oral Word Association Test). RESULTS A total of 705 participants were included in the analyses (mean [SD] age at year 20, 49.4 [10.1] years): 445 individuals (63.1%) had psychotic disorders (211 with schizophrenia spectrum [138 (65%) male]; 164 with affective psychoses [76 (46%) male]; 70 with other psychoses [43 (61%) male]); and 260 individuals (36.9%) in the control group (50.5 [9.0] years; 134 [51.5%] male). Cognition in individuals with a psychotic disorder declined on all but 2 tests (average decline: d = 0.31; range, 0.17-0.54; all P < .001). Cognitive declines were associated with worsening vocational functioning (Visual Reproduction test II: r = 0.20; Symbol Digit Modalities Test-written: r = 0.25; Stroop: r = 0.24; P < .009) and worsening negative symptoms (avolition: Symbol Digit Modalities Test-written: r = -0.24; TMT-A: r = -0.21; Stroop: r = -0.21; all P < .009; inexpressivity: Stroop: r = -0.22; P < .009). Compared with control individuals, people with psychotic disrders showed age-dependent deficits in verbal knowledge, fluency, and abstraction-executive function (vocabulary: β = -0.32; Controlled Oral Word Association Test: β = -0.32; TMT-B: β = 0.23; all P < .05), with the largest gap among participants 50 years or older. CONCLUSIONS AND RELEVANCE In individuals with psychotic disorders, most cognitive functions declined over 2 decades after first hospitalization. Observed declines were clinically significant. Some declines were larger than expected due to normal aging, suggesting that cognitive aging in some domains may be accelerated in this population. If confirmed, these findings would highlight cognition as an important target for research and treatment during later phases of psychotic illness.
Collapse
Affiliation(s)
- Anne-Kathrin J. Fett
- Department of Psychology, City, University of London, London, United Kingdom,Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King’s College London, London, United Kingdom,Department of Clinical and Developmental Psychology, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Eva Velthorst
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York,Seaver Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Abraham Reichenberg
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King’s College London, London, United Kingdom,Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York,Seaver Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, New York
| | | | | | | | | | - Greg Perlman
- Department of Psychiatry, Stony Brook University, Stony Brook, New York
| | - Evelyn J. Bromet
- Department of Psychiatry, Stony Brook University, Stony Brook, New York
| | - Roman Kotov
- Department of Psychiatry, Stony Brook University, Stony Brook, New York
| |
Collapse
|
9
|
Poletti M. Considerations on Retrospective Identification and Classification of Learning Disabilities. JAMA Neurol 2018; 75:1574-1575. [PMID: 30398538 DOI: 10.1001/jamaneurol.2018.3330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Michele Poletti
- Department of Mental Health and Pathological Addiction, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| |
Collapse
|
10
|
Tønnesen S, Kaufmann T, Doan NT, Alnæs D, Córdova-Palomera A, Meer DVD, Rokicki J, Moberget T, Gurholt TP, Haukvik UK, Ueland T, Lagerberg TV, Agartz I, Andreassen OA, Westlye LT. White matter aberrations and age-related trajectories in patients with schizophrenia and bipolar disorder revealed by diffusion tensor imaging. Sci Rep 2018; 8:14129. [PMID: 30237410 PMCID: PMC6147807 DOI: 10.1038/s41598-018-32355-9] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 09/06/2018] [Indexed: 12/18/2022] Open
Abstract
Supported by histological and genetic evidence implicating myelin, neuroinflammation and oligodendrocyte dysfunction in schizophrenia spectrum disorders (SZ), diffusion tensor imaging (DTI) studies have consistently shown white matter (WM) abnormalities when compared to healthy controls (HC). The diagnostic specificity remains unclear, with bipolar disorders (BD) frequently conceptualized as a less severe clinical manifestation along a psychotic spectrum. Further, the age-related dynamics and possible sex differences of WM abnormalities in SZ and BD are currently understudied. Using tract-based spatial statistics (TBSS) we compared DTI-based microstructural indices between SZ (n = 128), BD (n = 61), and HC (n = 293). We tested for age-by-group and sex-by-group interactions, computed effect sizes within different age-bins and within genders. TBSS revealed global reductions in fractional anisotropy (FA) and increases in radial (RD) diffusivity in SZ compared to HC, with strongest effects in the body and splenium of the corpus callosum, and lower FA in SZ compared to BD in right inferior longitudinal fasciculus and right inferior fronto-occipital fasciculus, and no significant differences between BD and HC. The results were not strongly dependent on age or sex. Despite lack of significant group-by-age interactions, a sliding-window approach supported widespread WM involvement in SZ with most profound differences in FA from the late 20 s.
Collapse
Affiliation(s)
- Siren Tønnesen
- NORMENT, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
| | - Tobias Kaufmann
- NORMENT, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Nhat Trung Doan
- NORMENT, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Dag Alnæs
- NORMENT, KG Jebsen Centre for Psychosis Research, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Aldo Córdova-Palomera
- NORMENT, KG Jebsen Centre for Psychosis Research, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Dennis van der Meer
- NORMENT, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Jaroslav Rokicki
- NORMENT, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Psychology, University of Oslo, Oslo, Norway
| | - Torgeir Moberget
- NORMENT, KG Jebsen Centre for Psychosis Research, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Tiril P Gurholt
- NORMENT, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Unn K Haukvik
- NORMENT, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Torill Ueland
- NORMENT, KG Jebsen Centre for Psychosis Research, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
- Department of Psychology, University of Oslo, Oslo, Norway
| | - Trine Vik Lagerberg
- NORMENT, KG Jebsen Centre for Psychosis Research, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Ingrid Agartz
- NORMENT, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Psychiatric Research, Diakonhjemmet Hospital, Oslo, Norway
| | - Ole A Andreassen
- NORMENT, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Lars T Westlye
- NORMENT, KG Jebsen Centre for Psychosis Research, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway.
- Department of Psychology, University of Oslo, Oslo, Norway.
| |
Collapse
|
11
|
Czepielewski LS, Massuda R, Panizzutti B, Grun LK, Barbé-Tuana FM, Teixeira AL, Barch DM, Gama CS. Telomere Length and CCL11 Levels are Associated With Gray Matter Volume and Episodic Memory Performance in Schizophrenia: Evidence of Pathological Accelerated Aging. Schizophr Bull 2018; 44:158-167. [PMID: 28338779 PMCID: PMC5767949 DOI: 10.1093/schbul/sbx015] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Schizophrenia (SZ) is associated with increased somatic morbidity and mortality, in addition to cognitive impairments similar to those seen in normal aging, which may suggest that pathological accelerated aging occurs in SZ. Therefore, we aim to evaluate the relationships of age, telomere length (TL), and CCL11 (aging and inflammatory biomarkers, respectively), gray matter (GM) volume and episodic memory performance in individuals with SZ compared to healthy controls (HC). One hundred twelve participants (48 SZ and 64 HC) underwent clinical and memory assessments, structural MRI, and had their peripheral blood drawn for biomarkers analysis. Comparisons of group means and correlations were performed. Participants with SZ had decreased TL and GM volume, increased CCL11, and worse memory performance compared to HC. In SZ, shorter TL was related to increased CCL11, and both biomarkers were related to reduced GM volume, all of which were related to worse memory performance. Older age was only associated with reduced GM, but longer duration of illness was related with all the aforementioned variables. Younger age of disease onset was associated with increased CCL11 levels and worse memory performance. In HC, there were no significant correlations except between memory and GM. Our results are consistent with the hypothesis of accelerated aging in SZ. These results may indicate that it is not age itself, but the impact of the disease associated with a pathological accelerated aging that leads to impaired outcomes in SZ.
Collapse
Affiliation(s)
- Leticia Sanguinetti Czepielewski
- Molecular Psychiatry Laboratory, Hospital de Clinicas de Porto Alegre, Programa de Pós-Graduação em Psiquiatria e Ciências do Comportamento, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Raffael Massuda
- Departamento de Psiquiatria, Universidade Federal do Paraná, Curitiba, Brazil
| | - Bruna Panizzutti
- Molecular Psychiatry Laboratory, Hospital de Clinicas de Porto Alegre, Programa de Pós-Graduação em Psiquiatria e Ciências do Comportamento, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Lucas Kich Grun
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Florencia María Barbé-Tuana
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Antonio Lucio Teixeira
- Laboratório Interdisciplinar de Investigação Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Deanna M Barch
- Department of Psychological & Brain Sciences, Washington University in St Louis, St Louis, MO,Department of Psychiatry and Radiology, Washington University in St Louis, St Louis, MO
| | - Clarissa S Gama
- Molecular Psychiatry Laboratory, Hospital de Clinicas de Porto Alegre, Programa de Pós-Graduação em Psiquiatria e Ciências do Comportamento, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil,To whom correspondence should be addressed; Hospital de Clínicas de Porto Alegre/CPE, Molecular Psychiatry Laboratory, Rua Ramiro Barcelos, 2350, Prédio Anexo, 90035-903 Porto Alegre, Brazil; tel: +55-51-33598845, fax: +55-51-33598846, e-mail:
| |
Collapse
|
12
|
Rautio N, Käkelä J, Nordström T, Miettunen J, Keinänen-Kiukaanniemi S, Ala-Mursula L, Karppinen J, Penttilä M, Jääskeläinen E. Prognosis of schizophrenia spectrum disorder may not be predetermined during early development--the Northern Finland Birth Cohort 1966. Schizophr Res 2016; 173:62-8. [PMID: 26971074 DOI: 10.1016/j.schres.2016.02.038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 02/26/2016] [Accepted: 02/29/2016] [Indexed: 12/17/2022]
Abstract
BACKGROUND Little is known about whether factors during the first years of life predict later outcomes in schizophrenia spectrum disorder (SSD). As part of the Northern Finland Birth Cohort 1966, we examined if prospectively collected early parenthood-related and developmental factors predict employment and hospitalization in individuals with and without SSD. METHODS Overall, 161 individuals with SSD and 10,116 without SSD were included in the study. Outcomes were analysed at age of 44-45years, defining "employment" as being employed for at least 25% of working days and "hospitalization" as having psychiatric hospitalization at least once during the last two years of follow-up. Maternal age, wantedness of pregnancy, grand multiparity, parental psychoses, birth weight, birth height, age of standing up and standing and walking without support were analysed as predictors. RESULTS Of the individuals with SSD, only 11.2% were employed, although 77.6% remained not hospitalized. In individuals with SSD, only young maternal age was associated with lower probability (OR 0.25, CI 0.08-0.77) of being non-hospitalized after controlling for sex and onset age of illness. Among persons without SSD, almost all parenthood-related and developmental factors were related to employment, while grand multiparity and parental psychosis were related to hospitalization after controlling for sex. CONCLUSIONS Only one of the early parenthood-related and developmental factors analysed in this study predicted outcome in individuals with SSD, while among those without SSD almost all factors were related to employment. Thus, prognosis of SSD does not seem to be predetermined much by early development.
Collapse
Affiliation(s)
- Nina Rautio
- Center for Life Course Health Research, University of Oulu, P.O. Box 5000, 90014 Oulu, Finland; Unit of Primary Health Care, Oulu University Hospital, P.O. Box 20, 90029 OYS Oulu, Finland.
| | - Juha Käkelä
- Center for Life Course Health Research, University of Oulu, P.O. Box 5000, 90014 Oulu, Finland; Research Unit of Clinical Neuroscience, Department of Psychiatry, University of Oulu, P.O. Box 5000, 90014 Oulu, Finland; Medical Research Center Oulu, Oulu University Hospital and University of Oulu, P.O. Box 5000, 90014 Oulu, Finland.
| | - Tanja Nordström
- Center for Life Course Health Research, University of Oulu, P.O. Box 5000, 90014 Oulu, Finland; Medical Research Center Oulu, Oulu University Hospital and University of Oulu, P.O. Box 5000, 90014 Oulu, Finland.
| | - Jouko Miettunen
- Center for Life Course Health Research, University of Oulu, P.O. Box 5000, 90014 Oulu, Finland; Research Unit of Clinical Neuroscience, Department of Psychiatry, University of Oulu, P.O. Box 5000, 90014 Oulu, Finland; Medical Research Center Oulu, Oulu University Hospital and University of Oulu, P.O. Box 5000, 90014 Oulu, Finland; Department of Psychiatry, Oulu University Hospital, P.O. Box 20, 90029 OYS Oulu, Finland.
| | - Sirkka Keinänen-Kiukaanniemi
- Center for Life Course Health Research, University of Oulu, P.O. Box 5000, 90014 Oulu, Finland; Unit of Primary Health Care, Oulu University Hospital, P.O. Box 20, 90029 OYS Oulu, Finland.
| | - Leena Ala-Mursula
- Center for Life Course Health Research, University of Oulu, P.O. Box 5000, 90014 Oulu, Finland.
| | - Jaro Karppinen
- Center for Life Course Health Research, University of Oulu, P.O. Box 5000, 90014 Oulu, Finland; Medical Research Center Oulu, Oulu University Hospital and University of Oulu, P.O. Box 5000, 90014 Oulu, Finland.
| | - Matti Penttilä
- Research Unit of Clinical Neuroscience, Department of Psychiatry, University of Oulu, P.O. Box 5000, 90014 Oulu, Finland; Medical Research Center Oulu, Oulu University Hospital and University of Oulu, P.O. Box 5000, 90014 Oulu, Finland; Department of Psychiatry, Oulu University Hospital, P.O. Box 20, 90029 OYS Oulu, Finland.
| | - Erika Jääskeläinen
- Center for Life Course Health Research, University of Oulu, P.O. Box 5000, 90014 Oulu, Finland; Research Unit of Clinical Neuroscience, Department of Psychiatry, University of Oulu, P.O. Box 5000, 90014 Oulu, Finland; Medical Research Center Oulu, Oulu University Hospital and University of Oulu, P.O. Box 5000, 90014 Oulu, Finland.
| |
Collapse
|
13
|
Olmos-Serrano JL, Tyler WA, Cabral HJ, Haydar TF. Longitudinal measures of cognition in the Ts65Dn mouse: Refining windows and defining modalities for therapeutic intervention in Down syndrome. Exp Neurol 2016; 279:40-56. [PMID: 26854932 DOI: 10.1016/j.expneurol.2016.02.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 02/02/2016] [Accepted: 02/04/2016] [Indexed: 12/24/2022]
Abstract
Mouse models have provided insights into adult changes in learning and memory in Down syndrome, but an in-depth assessment of how these abnormalities develop over time has never been conducted. To address this shortcoming, we conducted a longitudinal behavioral study from birth until late adulthood in the Ts65Dn mouse model to measure the emergence and continuity of learning and memory deficits in individuals with a broad array of tests. Our results demonstrate for the first time that the pace at which neonatal and perinatal milestones are acquired is correlated with later cognitive performance as an adult. In addition, we find that life-long behavioral indexing stratifies mice within each genotype. Our expanded assessment reveals that diminished cognitive flexibility, as measured by reversal learning, is the most robust learning and memory impairment in both young and old Ts65Dn mice. Moreover, we find that reversal learning degrades with age and is therefore a useful biomarker for studying age-related decline in cognitive ability. Altogether, our results indicate that preclinical studies aiming to restore cognitive function in Ts65Dn should target both neonatal milestones and reversal learning in adulthood. Here we provide the quantitative framework for this type of approach.
Collapse
Affiliation(s)
- J Luis Olmos-Serrano
- Department of Anatomy and Neurobiology, Boston University School of Medicine, 72 East Concord Street, L-1004, Boston, MA 02118, United States.
| | - William A Tyler
- Department of Anatomy and Neurobiology, Boston University School of Medicine, 72 East Concord Street, L-1004, Boston, MA 02118, United States.
| | - Howard J Cabral
- Department of Biostatistics, Boston University School of Public Health, 801 Massachusetts Avenue, Boston, MA 02118, United States.
| | - Tarik F Haydar
- Department of Anatomy and Neurobiology, Boston University School of Medicine, 72 East Concord Street, L-1004, Boston, MA 02118, United States.
| |
Collapse
|
14
|
Rannikko I, Jääskeläinen E, Miettunen J, Ahmed AO, Veijola J, Remes AM, Murray GK, Husa AP, Järvelin MR, Isohanni M, Haapea M. Predictors of Long-Term Change in Adult Cognitive Performance: Systematic Review and Data from the Northern Finland Birth Cohort 1966. Clin Neuropsychol 2016; 30:17-50. [PMID: 26734714 DOI: 10.1080/13854046.2015.1128000] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE Several social life events and challenges have an impact on cognitive development. Our goal was to analyze the predictors of change in cognitive performance in early midlife in a general population sample. Additionally, systematic literature review was performed. METHOD The study sample was drawn from the Northern Finland Birth Cohort 1966 at the ages of 34 and 43 years. Primary school performance, sociodemographic factors and body mass index (BMI) were used to predict change in cognitive performance measured by the California Verbal Learning Test, Visual Object Learning Test, and Abstraction Inhibition and Working Memory task. Analyses were weighted by gender and education, and p-values were corrected for multiple comparisons using Benjamini-Hochberg procedure (B-H). RESULTS Male gender predicted decrease in episodic memory. Poor school marks of practical subjects, having no children, and increase in BMI were associated with decrease in episodic memory, though non-significantly after B-H. Better school marks, and higher occupational class were associated with preserved performance in visual object learning. Higher vocational education predicted preserved performance in visual object learning test, though non-significantly after B-H. Likewise, having children predicted decreased performance in executive functioning but non-significantly after B-H. CONCLUSIONS Adolescent cognitive ability, change in BMI and several sociodemographic factors appear to predict cognitive changes in early midlife. The key advantage of present study is the exploration of possible predictors of change in cognitive performance among general population in the early midlife, a developmental period that has been earlier overlooked.
Collapse
Affiliation(s)
- Irina Rannikko
- a Department of Psychiatry , Center for Clinical Neurosciences, University of Oulu , Oulu , Finland.,b Medical Research Center Oulu, Oulu University Hospital and University of Oulu , Oulu , Finland
| | - Erika Jääskeläinen
- b Medical Research Center Oulu, Oulu University Hospital and University of Oulu , Oulu , Finland.,c Center for Life Course Health Research , University of Oulu , Oulu , Finland
| | - Jouko Miettunen
- b Medical Research Center Oulu, Oulu University Hospital and University of Oulu , Oulu , Finland.,c Center for Life Course Health Research , University of Oulu , Oulu , Finland
| | - Anthony O Ahmed
- d Department of Psychiatry , Weill Cornell Medical College , White Plains , NY USA
| | - Juha Veijola
- a Department of Psychiatry , Center for Clinical Neurosciences, University of Oulu , Oulu , Finland.,b Medical Research Center Oulu, Oulu University Hospital and University of Oulu , Oulu , Finland.,e Department of Psychiatry , Oulu University Hospital , Oulu , Finland
| | - Anne M Remes
- f Institute of Clinical Medicine - Neurology, University of Eastern Finland , Kuopio , Finland.,g Department of Neurology , Kuopio University Hospital , Kuopio , Finland
| | - Graham K Murray
- h Department of Psychiatry , University of Cambridge , Cambridge , UK.,i University of Cambridge, Behavioural and Clinical Neuroscience Institute , Cambridge , UK
| | - Anja P Husa
- b Medical Research Center Oulu, Oulu University Hospital and University of Oulu , Oulu , Finland.,e Department of Psychiatry , Oulu University Hospital , Oulu , Finland
| | - Marjo-Riitta Järvelin
- c Center for Life Course Health Research , University of Oulu , Oulu , Finland.,j Department of Epidemiology and Biostatistics , MRC Health Protection Agency (HPA) Centre for Environment and Health, School of Public Health, Imperial College , London , UK.,k Biocenter Oulu , University of Oulu , Oulu ¸ Finland.,l Unit of Primary Care , Oulu University Hospital , Oulu , Finland.,m Department of Children and Young People and Families , National Institute for Health and Welfare , Oulu , Finland
| | - Matti Isohanni
- a Department of Psychiatry , Center for Clinical Neurosciences, University of Oulu , Oulu , Finland.,e Department of Psychiatry , Oulu University Hospital , Oulu , Finland
| | - Marianne Haapea
- b Medical Research Center Oulu, Oulu University Hospital and University of Oulu , Oulu , Finland.,c Center for Life Course Health Research , University of Oulu , Oulu , Finland.,e Department of Psychiatry , Oulu University Hospital , Oulu , Finland.,n Department of Diagnostic Radiology , Oulu University Hospital , Oulu , Finland
| |
Collapse
|
15
|
Rannikko I, Murray GK, Juola P, Salo H, Haapea M, Miettunen J, Veijola J, Barnett JH, Husa AP, Jones PB, Järvelin MR, Isohanni M, Jääskeläinen E. Poor premorbid school performance, but not severity of illness, predicts cognitive decline in schizophrenia in midlife. Schizophr Res Cogn 2015; 2:120-126. [PMID: 29379762 PMCID: PMC5779304 DOI: 10.1016/j.scog.2015.08.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 08/02/2015] [Accepted: 08/06/2015] [Indexed: 11/03/2022]
Abstract
Neurocognitive dysfunction is common in schizophrenia but its course and determinants remain uncertain. Our aim was to analyse if premorbid school performance and the severity of illness and functioning predict change in cognition in schizophrenia in a general population sample. The sample included cases with schizophrenia spectrum disorder from the Northern Finland Birth Cohort 1966. Data on school marks at the age of 16 years, educational level at the age of 34 years, severity of symptoms and occupational functioning around first episode and after years of illness were gained from national registers, hospital notes and interviews. Change of verbal and visual learning and memory and executive functioning were examined between ages 34 and 43 years. The number of cases varied in analyses from 29 to 41, depending on missing data in particular cognitive tests. Lower school marks at age 16 years and lower education at age 34 years predicted more decline of cognition. Measures of severity of illness or functioning were not associated statistically significantly with change of cognition. Premorbid school performance, but not later course of schizophrenia, related to change of cognition in midlife. Poor premorbid scholastic performance and post-onset cognitive decline may represent related processes as part of an endophenotype of schizophrenia.
Collapse
Affiliation(s)
- Irina Rannikko
- Research Unit of Clinical Neuroscience, Department of Psychiatry, P.O. Box 5000, FIN-90014 University of Oulu, Finland
- Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Finland
| | - Graham K. Murray
- University of Cambridge, Department of Psychiatry, Box 189 Addenbrooke’s Hospital, Cambridge CB2 0QQ United Kingdom
- University of Cambridge, Behavioural and Clinical Neuroscience Institute, Herchel Smith Building, Forvie Site, Cambridge Biomedical Campus, Cambridge CB2 0SZ, UK
| | - Pauliina Juola
- Research Unit of Clinical Neuroscience, Department of Psychiatry, P.O. Box 5000, FIN-90014 University of Oulu, Finland
- Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Finland
| | - Henri Salo
- Research Unit of Clinical Neuroscience, Department of Psychiatry, P.O. Box 5000, FIN-90014 University of Oulu, Finland
| | - Marianne Haapea
- Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Finland
- Oulu University Hospital, Department of Psychiatry, P.O. Box 26, FIN-90029, OYS, Finland
- Oulu University Hospital, Department of Diagnostic Radiology, P.O. Box 50, FIN-90029 OYS, Finland
| | - Jouko Miettunen
- Research Unit of Clinical Neuroscience, Department of Psychiatry, P.O. Box 5000, FIN-90014 University of Oulu, Finland
- Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Finland
- Center for Life Course Epidemiology and Systems Medicine, P.O. Box 5000, FIN-90014 University of Oulu, Finland
| | - Juha Veijola
- Research Unit of Clinical Neuroscience, Department of Psychiatry, P.O. Box 5000, FIN-90014 University of Oulu, Finland
- Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Finland
- Oulu University Hospital, Department of Psychiatry, P.O. Box 26, FIN-90029, OYS, Finland
| | - Jennifer H. Barnett
- University of Cambridge, Department of Psychiatry, Box 189 Addenbrooke’s Hospital, Cambridge CB2 0QQ United Kingdom
- Cambridge Cognition Ltd, Cambridge UK
| | - Anja P. Husa
- Research Unit of Clinical Neuroscience, Department of Psychiatry, P.O. Box 5000, FIN-90014 University of Oulu, Finland
- Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Finland
- Oulu University Hospital, Department of Psychiatry, P.O. Box 26, FIN-90029, OYS, Finland
| | - Peter B. Jones
- University of Cambridge, Department of Psychiatry, Box 189 Addenbrooke’s Hospital, Cambridge CB2 0QQ United Kingdom
| | - Marjo-Riitta Järvelin
- Center for Life Course Epidemiology and Systems Medicine, P.O. Box 5000, FIN-90014 University of Oulu, Finland
- Department of Epidemiology and Biostatistics, MRC-PHE Centre for Environment and Health, School of Public Health, Imperial College London, UK
- Biocenter Oulu, P.O. Box 5000, Aapistie 5A, FI-90014 University of Oulu, Finland
- Unit of Primary Care, Oulu University Hospital, Kajaanintie 50, P.O. Box 20, FI-90220 Oulu, 90029 OYS, Finland
| | - Matti Isohanni
- Research Unit of Clinical Neuroscience, Department of Psychiatry, P.O. Box 5000, FIN-90014 University of Oulu, Finland
- Oulu University Hospital, Department of Psychiatry, P.O. Box 26, FIN-90029, OYS, Finland
| | - Erika Jääskeläinen
- Research Unit of Clinical Neuroscience, Department of Psychiatry, P.O. Box 5000, FIN-90014 University of Oulu, Finland
- Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Finland
- Center for Life Course Epidemiology and Systems Medicine, P.O. Box 5000, FIN-90014 University of Oulu, Finland
| |
Collapse
|
16
|
Rannikko I, Haapea M, Miettunen J, Veijola J, Murray GK, Barnett JH, Husa AP, Jones PB, Isohanni M, Jääskeläinen E. Changes in verbal learning and memory in schizophrenia and non-psychotic controls in midlife: A nine-year follow-up in the Northern Finland Birth Cohort study 1966. Psychiatry Res 2015; 228:671-9. [PMID: 26168931 DOI: 10.1016/j.psychres.2015.04.048] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 04/08/2015] [Accepted: 04/20/2015] [Indexed: 11/24/2022]
Abstract
Findings on longitudinal change of cognitive performance in schizophrenia are extremely variable in the case of verbal learning and memory, and it is still unclear which dimensions of verbal learning and memory exhibit possible deterioration over the long-term. Our aim was to compare the change in verbal learning and memory in individuals with schizophrenia 10-20 years after the illness onset and healthy controls during a nine-year follow-up in a general population sample. Our sample included 41 schizophrenia spectrum subjects and 73 controls from the Northern Finland Birth Cohort study 1966. The California Verbal Learning Test (CVLT) was used to estimate the degree of change in verbal learning and memory during a nine-year follow-up from age 34-years to 43- years. Both cases and controls deteriorated. There was statistically significant decline in two out of 20 CVLT items among cases and in 13 out of 20 CVLT items among controls. With the exception of two variables, the decline in verbal learning and memory over nine years was not significantly larger in cases. We conclude that during midlife verbal learning and memory in schizophrenia mostly declines in a normative fashion with aging at the same rate as the general population.
Collapse
Affiliation(s)
- Irina Rannikko
- Center for Clinical Neurosciences, Department of Psychiatry, University of Oulu, P.O. BOX 5000, FIN-90014, Finland; Medical Research Center Oulu, University Hospital and University of Oulu, P.O. Box 5000, FIN-90014, Finland.
| | - Marianne Haapea
- Oulu University Hospital, Department of Psychiatry, OYS, P.O. Box 26, FIN-90029, Finland; Oulu University Hospital, Department of Diagnostic Radiology, OYS, P.O. Box 50, FIN-90029, Finland.
| | - Jouko Miettunen
- Center for Clinical Neurosciences, Department of Psychiatry, University of Oulu, P.O. BOX 5000, FIN-90014, Finland; Oulu University Hospital, Department of Psychiatry, OYS, P.O. Box 26, FIN-90029, Finland; Centre for Life Course Epidemiology and Systems Medicine, University of Oulu, P.O. Box 5000, FIN-900014, Finland; Medical Research Center Oulu, University Hospital and University of Oulu, P.O. Box 5000, FIN-90014, Finland.
| | - Juha Veijola
- Center for Clinical Neurosciences, Department of Psychiatry, University of Oulu, P.O. BOX 5000, FIN-90014, Finland; Oulu University Hospital, Department of Psychiatry, OYS, P.O. Box 26, FIN-90029, Finland.
| | - Graham K Murray
- University of Cambridge, Department of Psychiatry, Box 189 Addenbrooke's Hospital, Cambridge CB2 0QQ, United Kingdom; University of Cambridge, Behavioural and Clinical Neuroscience Institute, Herchel Smith Building, Forvie Site, Cambridge Biomedical Campus, Cambridge CB2 0SZ, UK.
| | - Jennifer H Barnett
- University of Cambridge, Behavioural and Clinical Neuroscience Institute, Herchel Smith Building, Forvie Site, Cambridge Biomedical Campus, Cambridge CB2 0SZ, UK.
| | - Anja P Husa
- Center for Clinical Neurosciences, Department of Psychiatry, University of Oulu, P.O. BOX 5000, FIN-90014, Finland; Oulu University Hospital, Department of Psychiatry, OYS, P.O. Box 26, FIN-90029, Finland.
| | - Peter B Jones
- University of Cambridge, Department of Psychiatry, Box 189 Addenbrooke's Hospital, Cambridge CB2 0QQ, United Kingdom.
| | - Matti Isohanni
- Center for Clinical Neurosciences, Department of Psychiatry, University of Oulu, P.O. BOX 5000, FIN-90014, Finland; Oulu University Hospital, Department of Psychiatry, OYS, P.O. Box 26, FIN-90029, Finland.
| | - Erika Jääskeläinen
- Center for Clinical Neurosciences, Department of Psychiatry, University of Oulu, P.O. BOX 5000, FIN-90014, Finland; Oulu University Hospital, Department of Psychiatry, OYS, P.O. Box 26, FIN-90029, Finland; Centre for Life Course Epidemiology and Systems Medicine, University of Oulu, P.O. Box 5000, FIN-900014, Finland; Medical Research Center Oulu, University Hospital and University of Oulu, P.O. Box 5000, FIN-90014, Finland.
| |
Collapse
|
17
|
Flensborg-Madsen T, Mortensen EL. Infant developmental milestones and adult intelligence: A 34-year follow-up. Early Hum Dev 2015; 91:393-400. [PMID: 25981493 DOI: 10.1016/j.earlhumdev.2015.04.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Revised: 04/14/2015] [Accepted: 04/16/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND A number of studies suggest a positive association between faster infant motor development and intellectual function in childhood and adolescence. However, studies investigating the relationship between infant motor development and intelligence in adulthood are lacking. AIMS To investigate whether age at achievement of 12 motor developmental milestones was associated with adult intelligence and to evaluate the influence of sex, parental social status, parity, mother's cigarette consumption in the last trimester, gestational age, birthweight, and birth length on this association. METHODS Mothers of 9125 children of the Copenhagen Perinatal Cohort recorded 12 developmental milestones during the child's first year of life. A subsample of the cohort comprising 1155 individuals participated in a follow-up when they were aged 20-34 years and were administered the Wechsler Adult Intelligence Scale (WAIS). Associations between motor developmental milestones and IQ were analysed by multiple linear regression adjusting for potential confounding factors. RESULTS Later acquisition of infant developmental milestones was associated with lower subsequent IQ, and the majority of significant associations were found for Performance IQ. Correlations were generally small (r < 0.10), but significant interactions were found between parental social status and age of attaining developmental milestones, with associations being significantly stronger in the offspring of lower social status parents. The effects remained significant after adjusting for possible confounding factors. CONCLUSION This is the first study to find significant interactions with parental social status, thereby suggesting that associations between early motor development and intelligence are stronger in infants of low social status parents.
Collapse
Affiliation(s)
- Trine Flensborg-Madsen
- Unit of Medical Psychology, Institute of Public Health, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen K, Denmark.
| | - Erik Lykke Mortensen
- Unit of Medical Psychology, Institute of Public Health, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen K, Denmark; Center for Healthy Aging, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen N, Denmark.
| |
Collapse
|
18
|
Twenty Years of Schizophrenia Research in the Northern Finland Birth Cohort 1966: A Systematic Review. SCHIZOPHRENIA RESEARCH AND TREATMENT 2015; 2015:524875. [PMID: 26090224 PMCID: PMC4452001 DOI: 10.1155/2015/524875] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/11/2015] [Revised: 04/24/2015] [Accepted: 04/29/2015] [Indexed: 11/17/2022]
Abstract
Birth cohort designs are useful in studying adult disease trajectories and outcomes, such as schizophrenia. We review the schizophrenia research performed in the Northern Finland Birth Cohort 1966 (NFBC 1966), which includes 10,934 individuals living in Finland at 16 years of age who have been monitored since each mother's mid-pregnancy. By the age of 44, 150 (1.4%) had developed schizophrenia. There are 77 original papers on schizophrenia published from the NFBC 1966. The early studies have found various risk factors for schizophrenia, especially related to pregnancy and perinatal phase. Psychiatric and somatic outcomes were heterogeneous, but relatively poor. Mortality in schizophrenia is high, especially due to suicides. Several early predictors of outcomes have also been found. Individuals with schizophrenia have alterations in brain morphometry and neurocognition, and our latest studies have found that the use of high lifetime doses of antipsychotics associated with these changes. The schizophrenia research in the NFBC 1966 has been especially active for 20 years, the prospective study design and long follow-up enabling several clinically and epidemiologically important findings. When compared to other birth cohorts, the research in the NFBC 1966 has offered also unique findings on course and outcome of schizophrenia.
Collapse
|