1
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Guo CP, Li WS, Liu Y, Mahaman YAR, Zhang B, Wang JZ, Liu R, Li HL, Wang XC, Gao X. Inactivation of ERK1/2-CREB Pathway Is Implicated in MK801-induced Cognitive Impairment. Curr Med Sci 2023; 43:13-21. [PMID: 36867359 DOI: 10.1007/s11596-022-2690-5] [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: 08/01/2022] [Accepted: 10/19/2022] [Indexed: 03/04/2023]
Abstract
OBJECTIVE Schizophrenia (SZ) is associated with cognitive impairment, and it is known that the activity of cAMP response element binding protein (CREB) decreases in the brain of SZ patients. The previous study conducted by the investigators revealed that the upregulation of CREB improves the MK801-related SZ cognitive deficit. The present study further investigates the mechanism on how CREB deficiency is associated with SZ-related cognitive impairment. METHODS MK-801 was used to induce SZ in rats. Western blotting and immunofluorescence were performed to investigate CREB and the CREB-related pathway implicated in MK801 rats. The long-term potentiation and behavioral tests were performed to assess the synaptic plasticity and cognitive impairment, respectively. RESULTS The phosphorylation of CREB at Ser133 decreased in the hippocampus of SZ rats. Interestingly, among the upstream kinases of CREB, merely ERK1/2 was downregulated, while CaMKII and PKA remained unchanged in the brain of MK801-related SZ rats. The inhibition of ERK1/2 by PD98059 reduced the phosphorylation of CREB-Ser133, and induced synaptic dysfunction in primary hippocampal neurons. Conversely, the activation of CREB attenuated the ERK1/2 inhibitor-induced synaptic and cognitive impairment. CONCLUSION These present findings partially suggest that the deficiency of the ERK1/2-CREB pathway is involved in MK801-related SZ cognitive impairment. The activation of the ERK1/2-CREB pathway may be therapeutically useful for treating SZ cognitive deficits.
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Affiliation(s)
- Cui-Ping Guo
- Central Laboratory, Scientific Research Department, Renmin Hospital of Wuhan University, Wuhan, 430060, China.,Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, China.,Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry/Hubei Province of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Wen-Sheng Li
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry/Hubei Province of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yi Liu
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry/Hubei Province of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yacoubou Abdoul Razak Mahaman
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry/Hubei Province of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Bin Zhang
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry/Hubei Province of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Jian-Zhi Wang
- Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, China.,Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry/Hubei Province of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Rong Liu
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry/Hubei Province of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Hong-Lian Li
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry/Hubei Province of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xiao-Chuan Wang
- Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, China. .,Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry/Hubei Province of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China. .,Shenzhen Huazhong University of Science and Technology Research Institute, Shenzhen, 518000, China.
| | - Xiang Gao
- Central Laboratory, Scientific Research Department, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
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Bröcker AL, Zimmermann J, Stuke F, Just S, Bayer S, Mielau J, Bertram G, Funcke J, Maaßen E, Hadzibegovic J, Lempa G, von Haebler D, Montag C. Exploring the Latent Structure and Convergent and Incremental Validity of the Metacognition Assessment Scale - Abbreviated in a Sample of Patients with Non-Affective Psychosis. J Pers Assess 2023; 105:100-110. [PMID: 35363095 DOI: 10.1080/00223891.2022.2048843] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Synthetic metacognition is a heterogeneous construct related to psychotic disorders. One important tool to assess this construct is the Metacognition Assessment Scale - Abbreviated (MAS-A). In this study, we investigated the latent structure as well as the interrater reliability and convergent and incremental validity of the MAS-A in a sample of patients with non-affective psychosis. Analyses indicated that the scale might be one-dimensional. Interrater reliability of the MAS-A total score was good. In terms of convergent validity, correlational analyses showed significant associations of MAS-A metacognition with the Operationalized Psychodynamic Diagnosis Level of Structural Integration Axis (OPD-LSIA) and the Levels of Emotional Awareness Scale (LEAS). In terms of construct validity, a significant association was observed between MAS-A metacognition and a short version of the International Classification of Functioning, Disability and Health (MINI-ICF), which persisted after self-report measures of impairments in structural capacities (Structure Questionnaire of Operationalized Psychodynamic Diagnosis [OPD-SQS]) and mentalizing abilities (Mentalization Questionnaire [MZQ]) were included as covariates, but not after symptom dimensions were included. There was a significant correlation with the current living situation, but not with other external criteria like diagnosis or duration of illness. Future studies should explore alternative outcomes and replicate results in longitudinal designs.
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Affiliation(s)
- Anna-Lena Bröcker
- Department of Psychiatry and Neurosciences, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt - Universität zu Berlin, Germany
| | | | - Frauke Stuke
- Department of Psychiatry and Neurosciences, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt - Universität zu Berlin, Germany
| | - Sandra Just
- Department of Psychiatry and Neurosciences, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt - Universität zu Berlin, Germany
| | - Samuel Bayer
- Department of Psychiatry and Neurosciences, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt - Universität zu Berlin, Germany
| | - Juliane Mielau
- Department of Psychiatry and Neurosciences, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt - Universität zu Berlin, Germany
| | - Gianna Bertram
- Department of Psychiatry and Neurosciences, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt - Universität zu Berlin, Germany
| | - Jakob Funcke
- Department of Psychiatry and Neurosciences, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt - Universität zu Berlin, Germany
| | - Eva Maaßen
- Department of Psychiatry and Neurosciences, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt - Universität zu Berlin, Germany
| | - Jasmina Hadzibegovic
- Department of Psychiatry and Neurosciences, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt - Universität zu Berlin, Germany
| | | | - Dorothea von Haebler
- Department of Psychiatry and Neurosciences, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt - Universität zu Berlin, Germany.,International Psychoanalytic University, Berlin, Germany
| | - Christiane Montag
- Department of Psychiatry and Neurosciences, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt - Universität zu Berlin, Germany
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3
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Lysaker PH, Holm T, Kukla M, Wiesepape C, Faith L, Musselman A, Lysaker JT. Psychosis and the challenges to narrative identity and the good life: Advances from research on the integrated model of metacognition. JOURNAL OF RESEARCH IN PERSONALITY 2022. [DOI: 10.1016/j.jrp.2022.104267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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4
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A Psychotherapy Oriented by Compassion and Metacognition for Schizoid Personality Disorder: A Two Cases Series. JOURNAL OF CONTEMPORARY PSYCHOTHERAPY 2022. [DOI: 10.1007/s10879-022-09566-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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5
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Relationships among subclinical psychotic symptoms in young adults over time. Psychiatry Res 2022; 314:114617. [PMID: 35749858 DOI: 10.1016/j.psychres.2022.114617] [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: 01/10/2022] [Revised: 04/11/2022] [Accepted: 04/16/2022] [Indexed: 11/20/2022]
Abstract
BACKGROUND Subclinical psychotic symptoms are common in the general population and are often benign. However, those that become distressing or persistent may increase risk for the development of a psychotic disorder. Cognitive models have proposed that certain appraisals of hallucinatory experiences can lead to delusional beliefs, particularly if an individual is experiencing negative mood. However, the dynamic relationships among these symptoms are poorly understood. This study examined the longitudinal relationships among subclincal hallucinations, delusional ideation, and depression in a sample of young adults. METHODS 677 college students completed baseline questionnaires to assess: delusional ideation (Peters Delusions Inventory), hallucinations (Launay-Slade Hallucinations Scale-Extended), and depression (Beck Depression Inventory). These measures were repeated 7, 13, 19, and 25 months later. RESULTS Higher baseline severity of hallucinations was strongly predictive of severity of delusions across all future follow-up timepoints, specifically when baseline depression was high. However, the severity of hallucinations did not change over time, nor were they predicted by baseline delusional ideation. CONCLUSIONS These findings support the proposal that hallucinations frequently precede more severe delusional ideation, rather than the reverse sequence, particularly when depressive symptoms are present. Such longitudinal relationships provide clues to the underlying mechanisms of psychosis, highlighting one pathway for intervention.
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6
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Faith LA, Lecomte T, Corbière M, Lysaker PH. Metacognitive mastery moderates the relationship between positive symptoms and distress in adults with serious mental illness. J Ment Health 2022:1-8. [PMID: 35766302 DOI: 10.1080/09638237.2022.2091758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
BACKGROUND Research supports the possibility that a person's metacognitive ability may influence the impact of positive symptoms. This connection is important because understanding how metacognitive capacity relates to positive symptoms and distress can guide treatment and bolster recovery. AIMS To explore this, we assessed the moderating role of Metacognitive Mastery on the relationship of positive symptoms to affective symptoms, or markers of distress, measured both concurrently and at a later time point (to assess durability of metacognition) with persons with serious mental illness. To rule out the possibility that any findings were the result of cognitive impairments or general psychopathology we included measures of neurocognition and symptoms as potential covariates. METHODS Participants were 67 individuals with the majority diagnosed with either schizophrenia spectrum disorder, major depressive disorder, or bipolar disorder. Metacognition was measured with the Metacognitive Assessment Scale-Abbreviated, symptoms were measured using the Brief Psychiatric Rating Scale and verbal memory was measured using the California Verbal Learning Test. RESULTS Metacognitive Mastery moderated the relationship between positive symptoms and affective symptoms at both time points with differential patterns at each point. CONCLUSIONS Metacognitive Mastery may exert a complex influence upon the effects of positive symptoms on distress.
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Affiliation(s)
- Laura A Faith
- Richard L Roudebush VA Medical Center, Indianapolis, IN, USA.,Department of Psychology, University of Missouri, Kansas City, MO, USA
| | - Tania Lecomte
- Department of Psychology, University of Montreal, Montreal, QC, USA
| | - Marc Corbière
- Department of Psychology, University of Montreal, Montreal, QC, USA
| | - Paul H Lysaker
- Richard L Roudebush VA Medical Center, Indianapolis, IN, USA.,Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, USA
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7
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Deficits in access consciousness, integrative function, and consequent autonoetic thinking in schizophrenia. Med Hypotheses 2021; 155:110664. [PMID: 34425452 DOI: 10.1016/j.mehy.2021.110664] [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: 01/19/2021] [Revised: 06/09/2021] [Accepted: 08/10/2021] [Indexed: 11/23/2022]
Abstract
Alterations within consciousness in schizophrenia can be evidenced by impediments in self-awareness and loss of agency. Ned Block's definition of access consciousness is applied in order to further delineate cognitive deficits involving reflective thought and autonoetic thinking in persons with schizophrenia. Current theories on the nature and functioning of consciousness are discussed, which include Global Workspace Theory and metarepresentational characterizations. These describe a recursive, integrative quality to consciousness, contributed to by the functions of access consciousness, that is relevant in examining cognitive deficits in schizophrenia. The integrative deficit that is described as operating in conscious process involves a failure to incorporate prior outputs from a separate cognitive task and integrate these into a novel working schema. The alterations in access consciousness in persons with schizophrenia appear to be a consequence of disrupted integrative cognitive functions. An anteceding problem with cortical circuits involving integrative functions related to access consciousness is therefore hypothesized to manifest as subsequent cognitive dysfunction that leads to symptoms of schizophrenia. Constitutive failures to integrate information in schizophrenia could lead to an inability to create experiential unity and manage content in autonoetic consciousness. Some of the aberrant reasoning manifested by persons with schizophrenia, including problems with hierarchical relational reasoning, model-based-learning, J-con, ipseity, and source monitoring, could also reflect alterations in access consciousness, and their investigation offers additional approaches for scientific inquiry.
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8
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Lysaker PH, Cheli S, Dimaggio G, Buck B, Bonfils KA, Huling K, Wiesepape C, Lysaker JT. Metacognition, social cognition, and mentalizing in psychosis: are these distinct constructs when it comes to subjective experience or are we just splitting hairs? BMC Psychiatry 2021; 21:329. [PMID: 34215225 PMCID: PMC8254212 DOI: 10.1186/s12888-021-03338-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 06/21/2021] [Indexed: 02/01/2023] Open
Abstract
Research using the integrated model of metacognition has suggested that the construct of metacognition could quantify the spectrum of activities that, if impaired, might cause many of the subjective disturbances found in psychosis. Research on social cognition and mentalizing in psychosis, however, has also pointed to underlying deficits in how persons make sense of their experience of themselves and others. To explore the question of whether metacognitive research in psychosis offers unique insight in the midst of these other two emerging fields, we have offered a review of the constructs and research from each field. Following that summary, we discuss ways in which research on metacognition may be distinguished from research on social cognition and mentalizing in three broad categories: (1) experimental procedures, (2) theoretical advances, and (3) clinical applications or indicated interventions. In terms of its research methods, we will describe how metacognition makes a unique contribution to understanding disturbances in how persons make sense of and interpret their own experiences within the flow of life. We will next discuss how metacognitive research in psychosis uniquely describes an architecture which when compromised - as often occurs in psychosis - results in the loss of persons' sense of purpose, possibilities, place in the world and cohesiveness of self. Turning to clinical issues, we explore how metacognitive research offers an operational model of the architecture which if repaired or restored should promote the recovery of a coherent sense of self and others in psychosis. Finally, we discuss the concrete implications of this for recovery-oriented treatment for psychosis as well as the need for further research on the commonalities of these approaches.
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Affiliation(s)
- P H Lysaker
- Richard L Roudebush VA Medical Center, Department of Psychiatry, 1481 W. 10th St., Indianapolis, IN, 46202, USA. .,Department of Psychiatry, Indiana University School of Medicine, 340 W. 10th St., Indianapolis, IN, 46202, USA.
| | - S Cheli
- University of Florence, School of Human Health Sciences, Piazza di San Marco, 4, 50121, Florence, FI, Italy
| | - G Dimaggio
- Terzocentro di Psicoterapia Cognitiva, Associazione di Psicologia Cognitiva, Via Ravenna, 9, 00161, Rome, RM, Italy
| | - B Buck
- Department of Psychiatry and Behavioral Sciences, University of Washington, Behavioral Research in Technology and Engineering (BRiTE) Center, 1851 NE Grant Ln., Seattle, WA, 98185, USA
| | - K A Bonfils
- University of Southern Mississippi, School of Psychology, 118 College Dr., Hattiesbury, MS, 39406, USA
| | - K Huling
- University of Indianapolis, School of Psychological Sciences, 1400 E. Hanna Ave., Indianapolis, IN, 46277, USA
| | - C Wiesepape
- Indiana State University, Department of Psychology, 200 N. 7th St., Terre Haute, IN, 47809, USA
| | - J T Lysaker
- Department of Philosophy, Emory University, 201 Dowman Dr., Atlanta, GA, 30322, USA
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9
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Lysaker P, Chernov NV, Karpenko OA, Moiseeva TV, Sozinova MV, Dmitrieva ND, Alyoshin VA, Faith L, Kostyuk GP. [Metacognition as a pathway to the study and treatment of fragmentation in schizophrenia]. Zh Nevrol Psikhiatr Im S S Korsakova 2021; 121:160-164. [PMID: 33834735 DOI: 10.17116/jnevro2021121031160] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This paper explores the potential of recent research on metacognition to offer new avenues to assess and address the phenomenon of fragmentation in schizophrenia, which was described by E.Bleuler as «splitting». The concepts of metacognition characterize and quantify alterations or decrements in the processes by which fragments or pieces of information are integrated into a coherent sense of self and others. A method for assessing metacognition is presented along with research examining the presence and importance of metacognitive deficits in schizophrenia. Greater levels of metacognitive deficits have been detected in different phases of schizophrenia and linked to poorer psychosocial outcomes. These data were obtained both in foreign and preliminary Russian studies. The authors suggest that treatments, which successfully target metacognitive capacity, may uniquely promote wellness and recovery in schizophrenia.
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Affiliation(s)
- P Lysaker
- Indiana University School of Medicine, Indianapolis, USA
| | - N V Chernov
- Alexeev Mental Health Hospital, Moscow, Russia
| | | | | | | | | | | | - L Faith
- University of Missouri - Kansas City (USA)
| | - G P Kostyuk
- Alexeev Mental Health Hospital, Moscow, Russia
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10
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García-Mieres H, De Jesús-Romero R, Ochoa S, Feixas G. Beyond the cognitive insight paradox: Self-reflectivity moderates the relationship between depressive symptoms and general psychological distress in psychosis. Schizophr Res 2020; 222:297-303. [PMID: 32518005 DOI: 10.1016/j.schres.2020.05.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 04/27/2020] [Accepted: 05/09/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND People with psychosis experience significant emotional burden and distress associated with the symptomatic consequences of their mental disorder, thus difficulting their recovery. Several studies have found self-reflectivity, a dimension of cognitive insight, to be associated with effects which taken together may seem paradoxical, by predicting less psychotic symptom severity but more depression. To elucidate this issue, we examined the influence of psychotic symptoms, depressive symptoms, and self-reflectivity, on psychological distress. Further, we tested whether self-reflectivity moderated the relationship between depressive symptoms and psychological distress. METHODS Seventy-six outpatients with psychotic-spectrum disorders were assessed using measures of psychotic symptoms, depressive symptoms, cognitive insight (i.e., self-reflectivity, self-certainty) and psychological distress. RESULTS A regression model revealed that depressive, positive symptoms and the interaction between depressive symptoms and self-reflectivity had a significant effect on psychological distress. The moderation analysis showed that higher levels of self-reflectivity were related to less psychological distress associated with depressive mood. CONCLUSIONS The role of self-reflectivity on depression and distress may be more complex than a direct effect. Interventions targeted to improve metacognition by enhancing self-reflectivity might be important for lowering the psychological distress associated with depressive symptoms in people with psychosis.
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Affiliation(s)
- Helena García-Mieres
- Department of Clinical Psychology and Psychobiology, Faculty of Psychology, University of Barcelona, 08035, Barcelona, Spain; The Institute of Neurosciences, University of Barcelona, 08035, Barcelona, Spain; Research and Development Unit, Parc Sanitari Sant Joan de Déu, Sant Boi de Llobregat, Barcelona, Spain.
| | - Robinson De Jesús-Romero
- Department of Psychological and Brain Sciences, Indiana University Bloomington, 47405, IN, United States
| | | | - Susana Ochoa
- Research and Development Unit, Parc Sanitari Sant Joan de Déu, Sant Boi de Llobregat, Barcelona, Spain; Mental Health Networking Biomedical Research Centre, CIBERSAM, Madrid, Spain
| | - Guillem Feixas
- Department of Clinical Psychology and Psychobiology, Faculty of Psychology, University of Barcelona, 08035, Barcelona, Spain; The Institute of Neurosciences, University of Barcelona, 08035, Barcelona, Spain
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11
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Guo C, Liu Y, Fang MS, Li Y, Li W, Mahaman YAR, Zeng K, Xia Y, Ke D, Liu R, Wang JZ, Shen H, Shu X, Wang X. ω-3PUFAs Improve Cognitive Impairments Through Ser133 Phosphorylation of CREB Upregulating BDNF/TrkB Signal in Schizophrenia. Neurotherapeutics 2020; 17:1271-1286. [PMID: 32367475 PMCID: PMC7609637 DOI: 10.1007/s13311-020-00859-w] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Schizophrenia (SZ) is a serious mental condition and is associated with cognitive impairments. Brain-derived neurotrophic factor (BDNF) is one of the learning- and memory-related molecules found in the CNS and its level was reported to be reduced in SZ brain, while ω-3 polyunsaturated fatty acids (ω-3PUFAs) could improve SZ symptoms, but its mechanism of action remains unknown. Using MK801 injection-induced SZ rat model, we here found that supplementation with ω-3PUFAs improved the levels of p-CREB, BDNF, and p-TrkB in the brain of SZ rats, and restore hippocampal neuronal damage, thereby reducing cognitive impairments in SZ rats. However, overexpression of AAV9/CREB S133A (CREB inactivated mutation) downregulated BDNF/TrkB signaling pathway and remarkably abolished the preventive effect of ω-3PUFAs in MK801-induced schizophrenia. Interestingly, AAV9/CREB S133D (CREB activated mutation) improved synaptic dysfunctions and cognitive defects in MK801 rats. In conclusion, these findings indicate that MK801-induced SZ lesions dephosphorylate CREB at Ser133 site, leading to neuron damage, and ω-3PUFAs improve SZ cognitive impairments by upregulating the CREB/BDNF/TrkB pathway, which provides new clues for the mechanism of SZ cognitive impairments, and a basis for therapeutic intervention.
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Affiliation(s)
- Cuiping Guo
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yi Liu
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- Department of Pathophysiology, Weifang Medical University, Weifang, 261053, China
| | | | - Yuanyuan Li
- Laboratory of Neurobiology, School of Biomedical Engineering, Tianjin Medical University, Tianjin, China
| | - Wensheng Li
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yacoubou Abdoul Razak Mahaman
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- Cognitive Impairment Ward of Neurology Department, The Third Affiliated Hospital of Shenzhen University, 47 Youyi Rd., Shenzhen, 518001, Guangdong Province, China
| | - Kuan Zeng
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- Wuhan Mental Health Center, Wuhan, 430022, China
| | - Yiyuan Xia
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Dan Ke
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Rong Liu
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Jian-Zhi Wang
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu, China
| | - Hui Shen
- Laboratory of Neurobiology, School of Biomedical Engineering, Tianjin Medical University, Tianjin, China
| | - Xiji Shu
- Department of Pathology and Pathophysiology, School of Medicine, Jianghan University, Wuhan, 430056, China.
| | - Xiaochuan Wang
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
- Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu, China.
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12
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Lysaker PH, Gagen E, Klion R, Zalzala A, Vohs J, Faith LA, Leonhardt B, Hamm J, Hasson-Ohayon I. Metacognitive Reflection and Insight Therapy: A Recovery-Oriented Treatment Approach for Psychosis. Psychol Res Behav Manag 2020; 13:331-341. [PMID: 32308511 PMCID: PMC7135118 DOI: 10.2147/prbm.s198628] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 02/15/2020] [Indexed: 12/18/2022] Open
Abstract
Recent research has suggested that recovery from psychosis is a complex process that involves recapturing a coherent sense of self and personal agency. This poses important challenges to existing treatment models. While current evidence-based practices are designed to ameliorate symptoms and skill deficits, they are less able to address issues of subjectivity and self-experience. In this paper, we present Metacognitive Insight and Reflection Therapy (MERIT), a treatment approach that is explicitly concerned with self-experience in psychosis. This approach uses the term metacognition to describe those cognitive processes that underpin self-experience and posits that addressing metacognitive deficits will aid persons diagnosed with psychosis in making sense of the challenges they face and deciding how to effectively manage them. This review will first explore the conceptualization of psychosis as the interruption of a life and how persons experience themselves, and then discuss in more depth the construct of metacognition. We will next examine the background, practices and evidence supporting MERIT. This will be followed by a discussion of how MERIT overlaps with other emerging treatments as well as how it differs. MERIT's capacity to engage patients who reject the idea that they have mental illness as well as cope with entrenched illness identities is highlighted. Finally, limitations and directions for future research are discussed.
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Affiliation(s)
- Paul H Lysaker
- Richard L. Roudebush VA Medical Center, Indianapolis, IN, USA
- Indiana University School of Medicine, Indianapolis, IN, USA
| | - Emily Gagen
- Providence VA Medical Center Department of Psychology, Providence, RI, USA
| | | | | | - Jenifer Vohs
- Indiana University School of Medicine, Indianapolis, IN, USA
| | - Laura A Faith
- Richard L. Roudebush VA Medical Center, Indianapolis, IN, USA
- University of Missouri - Kansas City, KS, USA
| | - Bethany Leonhardt
- Indiana University School of Medicine, Indianapolis, IN, USA
- Eskenazi Health- Midtown Community Mental Health, Indianapolis, IN, USA
| | - Jay Hamm
- Eskenazi Health- Midtown Community Mental Health, Indianapolis, IN, USA
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