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Armita A, Guivarch J, Dor E, Laure G, Zeghari R, Gindt M, Thümmler S, Askenazy F, Fernandez A. Neurocognitive dysfunctions in childhood-onset schizophrenia: A systematic review. Schizophr Res Cogn 2025; 40:100342. [PMID: 39867751 PMCID: PMC11759536 DOI: 10.1016/j.scog.2024.100342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2024] [Revised: 12/18/2024] [Accepted: 12/18/2024] [Indexed: 01/28/2025]
Abstract
Objective To conduct a systematic review of neurocognitive dysfunctions in patients with childhood-onset schizophrenia (COS), a neuropsychiatric disorder that occurs before age 13 and is rarer and more severe than adult-onset schizophrenia. Method A search was made in the PubMed database. Sixty-seven studies (out of 543) which analyzed Intellectual Quotient (IQ), attentional, memory and executive functions were selected by two independent researchers. Study's appraisal was done according to the Mixed Methods Appraisal Tool (MMAT). This systematic review was registered on PROSPERO (CRD42024548945). Result COS shows neurocognitive dysfunction in IQ with mean scores ranging from one to two standard deviation lower than normative data. Attentional deficits are observed with longer reaction time, more errors of omission and commission and slower processing speed than controls. In addition, working memory and executive functions, such as planification and flexibility are impaired. COS exhibit significantly more neurocognitive deficits than adolescent and adult-onset forms and display deterioration in intellectual functioning between premorbid period and after onset of psychosis. Conclusion COS is characterized by major cognitive impairments, both before the onset of the disease and throughout its course. As in adult-onset schizophrenia, generalized cognitive impairment is found without the emergence of a specific profile, providing further support for the continuum hypothesis between early-onset and adult-onset schizophrenia. Collaborative research on a larger scale (including meta-analyses) and using complementary approaches (dimensional and multimodal) is needed to gain a better understanding of the cognitive impact of COS and pave the way for more precise and targeted cognitive remediation.
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Affiliation(s)
- A. Armita
- University Department of Child and Adolescent Psychiatry, Children's Hospitals of NICE CHU-Lenval, Nice, France
- Université Côte d'Azur, CoBTek, France
| | - J. Guivarch
- Faculty of Medicine, Aix-Marseille University, Marseille, France
- Department of Child Psychiatry, AP-HM, Marseille, France
- Institut de Neurosciences de la Timone, UMR 7289, CNRS, Aix-Marseille University, Marseille, France
| | - E. Dor
- University Department of Child and Adolescent Psychiatry, Children's Hospitals of NICE CHU-Lenval, Nice, France
- Université Côte d'Azur, CoBTek, France
| | - G. Laure
- University Department of Child and Adolescent Psychiatry, Children's Hospitals of NICE CHU-Lenval, Nice, France
- Université Côte d'Azur, CoBTek, France
- Centre de Référence pour les Maladies Rares à expression psychiatrique (PsyRare), Nice, France
| | - R. Zeghari
- University Department of Child and Adolescent Psychiatry, Children's Hospitals of NICE CHU-Lenval, Nice, France
- Université Côte d'Azur, CoBTek, France
| | - M. Gindt
- University Department of Child and Adolescent Psychiatry, Children's Hospitals of NICE CHU-Lenval, Nice, France
- Université Côte d'Azur, CoBTek, France
| | - S. Thümmler
- University Department of Child and Adolescent Psychiatry, Children's Hospitals of NICE CHU-Lenval, Nice, France
- Université Côte d'Azur, CoBTek, France
- Centre de Référence pour les Maladies Rares à expression psychiatrique (PsyRare), Nice, France
| | - F. Askenazy
- University Department of Child and Adolescent Psychiatry, Children's Hospitals of NICE CHU-Lenval, Nice, France
- Université Côte d'Azur, CoBTek, France
- Centre de Référence pour les Maladies Rares à expression psychiatrique (PsyRare), Nice, France
| | - A. Fernandez
- University Department of Child and Adolescent Psychiatry, Children's Hospitals of NICE CHU-Lenval, Nice, France
- Université Côte d'Azur, CoBTek, France
- Centre de Référence pour les Maladies Rares à expression psychiatrique (PsyRare), Nice, France
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Pei H, Li H, Hou C, Liu Y, Liu J, Duan M, Yao D, Jiang S, Luo C. Fronto-occipital dyscommunication associates with brain hierarchy in schizophrenia. Commun Biol 2025; 8:699. [PMID: 40325203 PMCID: PMC12052816 DOI: 10.1038/s42003-025-08053-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2024] [Accepted: 04/08/2025] [Indexed: 05/07/2025] Open
Abstract
Schizophrenia involves abnormal fronto-occipital interactions linked to hallucinations and cognitive impairments, but the neural mechanisms remain unclear. This work aims to provide an overview of the relationship between fronto-occipital dysfunction and symptoms using simultaneous EEG-fMRI data in schizophrenia. We measured the brain's functional separation and quantified bidirectional information transfer changes between the frontal and occipital regions. A pronounced elevation in correlation within the frontal lobe, accompanied by a marked reduction in the occipital lobe, was observed between gradient eccentricities and theta-power of forward waves. Moreover, the relationship between forward waves and gradient eccentricities in the ventrolateral prefrontal cortex may be shaped by positive symptoms, while the influence of negative symptoms appears to modulate the relationship between backward waves and gradient eccentricities in the insula. The MOR and CB1 neurotransmitters predominantly contributed to associations between eccentricities and traveling waves. Symptoms promote the dysregulation of hierarchical separation and information transmission in schizophrenia.
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Affiliation(s)
- Haonan Pei
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
- China-Cuba Belt and Road Joint Laboratory on Neurotechnology and Brain-Apparatus Communication, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
| | - Hechun Li
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
- China-Cuba Belt and Road Joint Laboratory on Neurotechnology and Brain-Apparatus Communication, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
| | - Changyue Hou
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
- China-Cuba Belt and Road Joint Laboratory on Neurotechnology and Brain-Apparatus Communication, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
| | - Yayun Liu
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
- China-Cuba Belt and Road Joint Laboratory on Neurotechnology and Brain-Apparatus Communication, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
| | - Jiashuo Liu
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
- China-Cuba Belt and Road Joint Laboratory on Neurotechnology and Brain-Apparatus Communication, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
| | - Mingjun Duan
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
- Department of Psychiatry, The Clinical Hospital of Chengdu Brain Science Institute, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
| | - Dezhong Yao
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
- China-Cuba Belt and Road Joint Laboratory on Neurotechnology and Brain-Apparatus Communication, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
- Research Unit of NeuroInformation, Chinese Academy of Medical Sciences, Chengdu, People's Republic of China
| | - Sisi Jiang
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, People's Republic of China.
- China-Cuba Belt and Road Joint Laboratory on Neurotechnology and Brain-Apparatus Communication, University of Electronic Science and Technology of China, Chengdu, People's Republic of China.
| | - Cheng Luo
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, People's Republic of China.
- China-Cuba Belt and Road Joint Laboratory on Neurotechnology and Brain-Apparatus Communication, University of Electronic Science and Technology of China, Chengdu, People's Republic of China.
- Research Unit of NeuroInformation, Chinese Academy of Medical Sciences, Chengdu, People's Republic of China.
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3
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Xie Y, Fu J, Liu L, Wang X, Liu F, Liang M, Liu H, Qin W, Yu C. Genetic and neural mechanisms shared by schizophrenia and depression. Mol Psychiatry 2025:10.1038/s41380-025-02975-5. [PMID: 40175520 DOI: 10.1038/s41380-025-02975-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2024] [Revised: 03/04/2025] [Accepted: 03/21/2025] [Indexed: 04/04/2025]
Abstract
Schizophrenia (SCZ) and depression are two prevalent mental disorders characterized by comorbidity and overlapping symptoms, yet the underlying genetic and neural mechanisms remain largely elusive. Here, we investigated the genetic variants and neuroimaging changes shared by SCZ and depression in Europeans and then extended our investigation to cross-ancestry (Europeans and East Asians) populations. Using conditional and conjunctional analyses, we found 213 genetic variants shared by SCZ and depression in Europeans, of which 82.6% were replicated in the cross-ancestry population. The shared risk variants exhibited a higher degree of deleteriousness than random and were enriched for synapse-related functions, among which fewer than 3% of shared variants showed horizontal pleiotropy between the two disorders. Mendelian randomization analyses indicated reciprocal causal effects between SCZ and depression. Using multiple trait genetic colocalization analyses, we pinpointed 13 volume phenotypes shared by SCZ and depression. Particularly noteworthy were the shared volume reductions in the left insula and planum polare, which were validated through large-scale meta-analyses of previous studies and independent neuroimaging datasets of first-episode drug-naïve patients. These findings suggest that the shared genetic risk variants, synapse dysfunction, and brain structural changes may underlie the comorbidity and symptom overlap between SCZ and depression.
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Affiliation(s)
- Yingying Xie
- Department of Radiology & Tianjin Key Lab of Functional Imaging & Tianjin Institute of Radiology & State Key Laboratory of Experimental Hematology, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Jilian Fu
- Department of Radiology & Tianjin Key Lab of Functional Imaging & Tianjin Institute of Radiology & State Key Laboratory of Experimental Hematology, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Liping Liu
- The First Psychiatric Hospital of Harbin, Harbin, 150056, China
| | - Xijin Wang
- The First Psychiatric Hospital of Harbin, Harbin, 150056, China
| | - Feng Liu
- Department of Radiology & Tianjin Key Lab of Functional Imaging & Tianjin Institute of Radiology & State Key Laboratory of Experimental Hematology, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Meng Liang
- School of Medical Imaging, Tianjin Medical University, Tianjin, 300203, China
| | - Hesheng Liu
- Division of Brain Sciences, Changping Laboratory, Beijing, 102206, China.
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing, 100871, China.
| | - Wen Qin
- Department of Radiology & Tianjin Key Lab of Functional Imaging & Tianjin Institute of Radiology & State Key Laboratory of Experimental Hematology, Tianjin Medical University General Hospital, Tianjin, 300052, China.
| | - Chunshui Yu
- Department of Radiology & Tianjin Key Lab of Functional Imaging & Tianjin Institute of Radiology & State Key Laboratory of Experimental Hematology, Tianjin Medical University General Hospital, Tianjin, 300052, China.
- School of Medical Imaging, Tianjin Medical University, Tianjin, 300203, China.
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Rippe W, Weisner L, Ewen J, Mench P, Koppius T, Borgwardt S, Tari B, Heath M, Sprenger A, Wilms B, Lencer R. We like to move it - patients with schizophrenia spectrum disorders are impaired in estimating their physical fitness levels and benefit from individualized exercise. Eur Arch Psychiatry Clin Neurosci 2025; 275:629-640. [PMID: 38953981 DOI: 10.1007/s00406-024-01844-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Accepted: 06/06/2024] [Indexed: 07/04/2024]
Abstract
BACKGROUND People with schizophrenia spectrum disorders (SSD) engage less in physical activity than healthy individuals. The impact of subjectively assessed physical fitness levels on motivation for sports engagement and its relation to objective fitness parameters in SSD is unclear. METHODS 25 patients with SSD (P-SSD) and 24 healthy controls (H-CON) participated in a randomized controlled study. Individual anaerobic thresholds (AT) were determined by an incremental exercise test and on separate days, aerobic exercise (cycling at 80% of workload at AT) and non-exercise control (sitting on an ergometer without cycling) sessions were performed. Demographic, clinical and objective physical fitness data (i.e., weekly physical activity, workload at AT, heart rate) were collected. Subjective physical fitness parameters were assessed before and after exercise and control sessions. RESULTS Weekly physical activity in P-SSD was lower than in H-CON (p < 0.05) attributed to reduced engagement in sport activities (p < 0.001). Workload and percentage of predicted maximal heart rate at AT were also reduced in P-SSD compared to H-CON (both p < 0.05). Although objective and subjective physical fitness parameters were related in H-CON (p < 0.01), this relationship was absent in P-SSD. However, during exercise sessions subjective physical fitness ratings increased to a stronger extent in P-SSD than H-CON (p < 0.05). CONCLUSION The missing relationship between subjective and objective physical fitness parameters in people with SSD may represent a barrier for stronger engagement in physical activity. Accordingly, supervised exercise interventions with individually adjusted workload intensity may support realistic subjective fitness estimations and enhance motivation for sports activity in individuals with SSD.
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Affiliation(s)
- Wido Rippe
- Department of Psychiatry and Psychotherapy, University of Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany.
- Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany.
| | - L Weisner
- Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
- Institute for Endocrinology and Diabetes, University of Lübeck, Lübeck, Germany
| | - J Ewen
- Department of Psychiatry and Psychotherapy, University of Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany
| | - P Mench
- Department of Psychiatry and Psychotherapy, University of Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany
| | - T Koppius
- Institute of Psychology, University of Lübeck, Lübeck, Germany
| | - S Borgwardt
- Department of Psychiatry and Psychotherapy, University of Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany
- Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
| | - B Tari
- Department of Psychiatry, University of Oxford, Oxford, UK
| | - M Heath
- School of Kinesiology, University of Western Ontario, London, Canada
| | - A Sprenger
- Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
- Institute of Psychology, University of Lübeck, Lübeck, Germany
- Department of Neurology, University of Lübeck, Lübeck, Germany
| | - B Wilms
- Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
- Institute for Endocrinology and Diabetes, University of Lübeck, Lübeck, Germany
| | - R Lencer
- Department of Psychiatry and Psychotherapy, University of Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany
- Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
- Institute for Translational Psychiatry, University Münster, Münster, Germany
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Anissa M, Afriwardi, Yaunin Y, Rita RS. Correlation of Proline, Kynurenic Acid and Glutamate Levels with Cognitive Function: Insights from Digit Span, TMT and RAVLT in Schizophrenia. Pak J Biol Sci 2025; 28:308-317. [PMID: 40377040 DOI: 10.3923/pjbs.2025.308.317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2025]
Abstract
<b>Background and Objective:</b> Schizophrenia is a severe and chronic mental disorder which are characterized by delusions, hallucinations, disorganized speech, catatonic behavior, negative symptoms and cognitive symptoms. Several gene polymorphisms and neurotransmitters have been linked to schizophrenia. This study assessed the correlation between proline level, Kynurenic Acid (KYNA) and glutamate level with cognitive function among schizophrenia patients, contributing to understanding biochemical factors associated with cognitive impairments. <b>Materials and Methods:</b> The research was a cross-sectional observational analytic study of 99 patients diagnosed with schizophrenia. Schizophrenia was diagnosed by SCID-1 questionnaire and the patient's blood was taken to be analyzed in the Biochemical Laboratory of Medical Faculty Andalas University using Enzyme-Linked Immunosorbent Assay (ELISA) to characterize kynurenic acid level, glutamate level and proline level. Data were analyzed using Spearman Correlation in SPSS 25.0, with significance at p<0.05. <b>Results:</b> There were 99 schizophrenia patients; most of them were male (62.6%), age median 37 years old and not married (50.5%). The Microproline Level median among participants was 2.64 μg/mL, the median KYNA level was 14.6 nmol/L and the glutamate level was 10.5 μg/mL. Cognitive function was assessed by Rey Auditory Verbal Learning Test (RAVLT), Digit Span Test and Trail Making Test (TMT) with a score median of 4/5/5/5 (Trial 1/2/3/Recall), 6/2 (forward/backward), 68/37 sec (TMT A/B), respectively. Spearman Correlation showed that microproline has a negative correlation with RAVLT Trial 1 (r = -0.221, p = 0.014), Digit Span Backward (r = -0.181, p = 0.036), TMT A (r = 0.204, p = 0.021) and TMT B (r = 0.185, p = 0.034). In contrast, other neurotransmitters do not correlate with any cognitive tests. <b>Conclusion:</b> Proline may play a role in the pathophysiology of cognitive deficits in schizophrenia, highlighting its potential as a target for therapeutic interventions.
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de Almeida Queiroz S, de Novais Junior LR, de Carvalho ABP, da Silva TV, de Souza Ramos S, Meneguzzo V, Mathias K, Tiscoski ADB, Piacentini N, de Souza Goldim MP, Iser BPM, Petronilho F, Inserra A, de Bitencourt RM. Cannabidiol reverses myeloperoxidase hyperactivity in the prefrontal cortex and striatum, and reduces protein carbonyls in the hippocampus in a ketamine-induced schizophrenia rat model. Schizophr Res 2025; 278:82-95. [PMID: 40132281 DOI: 10.1016/j.schres.2025.03.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2024] [Revised: 01/28/2025] [Accepted: 03/19/2025] [Indexed: 03/27/2025]
Abstract
BACKGROUND Schizophrenia (SCZ) has limited treatment options, often with significant side effects. Cannabidiol (CBD), a non-euphoric phytocannabinoid, has shown potential as a novel therapeutic option in SCZ due to antipsychotic-like, anti-inflammatory, and antioxidant properties. We compared the therapeutic effects of CBD and risperidone (RISP) in a rat model of SCZ induced by sub-chronic ketamine (KET), focusing on inflammatory and oxidative stress, and behavioral phenotypes. METHODS Rats were pre-treated with KET or saline (SAL) for 10 days followed by CBD or RISP for 8 days. Locomotion, anxiety- and anhedonia-like behavior, and recognition memory were assessed. Oxidative damage as measured by protein carbonyls, thiobarbituric acid reactive substances, and catalase activity, and the inflammation markers myeloperoxidase (MPO) activity and nitrite/nitrate (N/N) concentration ratio were assessed in the prefrontal cortex (PFC), hypothalamus (HYP), hippocampus (HPC), and striatum, brain areas relevant to SCZ. RESULTS CBD restored the KET-induced decreased rearing behavior in the OFT, while RISP further decreased rearing. RISP treatment in control rats decreased rearing and elicited an anhedonic-like phenotype, while CBD did not. CBD, but not RISP restored the KET-induced increased levels of MPO activity in the PFC and the striatum, and protein carbonyls in the HPC. Post-KET treatment with RISP but not CBD decreased protein carbonyls in the PFC, and decreased the N/N concentration ratio in the HYP. CONCLUSION CBD restored the KET-induced decrease in rearing behavior without inducing an anhedonic-like phenotype as observed with RISP. CBD, and to a lesser extent RISP restored the oxidative stress and neuroinflammation elicited by KET in the striatum, HPC, and PFC. These findings support the possibility that the antipsychotic effects of CBD might be mediated by its antioxidant and anti-inflammatory effects.
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Affiliation(s)
- Sofia de Almeida Queiroz
- Behavioral Neuroscience Laboratory, Postgraduate Program in Health Sciences, University of Southern Santa Catarina (UNISUL), Tubarão, Brazil
| | - Linério Ribeiro de Novais Junior
- Behavioral Neuroscience Laboratory, Postgraduate Program in Health Sciences, University of Southern Santa Catarina (UNISUL), Tubarão, Brazil
| | - Anita Beatriz Pacheco de Carvalho
- Behavioral Neuroscience Laboratory, Postgraduate Program in Health Sciences, University of Southern Santa Catarina (UNISUL), Tubarão, Brazil
| | - Tiago Vicente da Silva
- Behavioral Neuroscience Laboratory, Postgraduate Program in Health Sciences, University of Southern Santa Catarina (UNISUL), Tubarão, Brazil
| | - Suelen de Souza Ramos
- Behavioral Neuroscience Laboratory, Postgraduate Program in Health Sciences, University of Southern Santa Catarina (UNISUL), Tubarão, Brazil
| | - Vicente Meneguzzo
- Behavioral Neuroscience Laboratory, Postgraduate Program in Health Sciences, University of Southern Santa Catarina (UNISUL), Tubarão, Brazil
| | - Khiany Mathias
- Laboratory of Experimental Neurology, Postgraduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil
| | - Anita Dal Bó Tiscoski
- Laboratory of Experimental Neurology, Postgraduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil
| | - Natália Piacentini
- Laboratory of Experimental Neurology, Postgraduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil
| | - Mariana Pereira de Souza Goldim
- Behavioral Neuroscience Laboratory, Postgraduate Program in Health Sciences, University of Southern Santa Catarina (UNISUL), Tubarão, Brazil
| | - Betine Pinto Moehlecke Iser
- Behavioral Neuroscience Laboratory, Postgraduate Program in Health Sciences, University of Southern Santa Catarina (UNISUL), Tubarão, Brazil
| | - Fabricia Petronilho
- Laboratory of Experimental Neurology, Postgraduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil
| | - Antonio Inserra
- Behavioral Neuroscience Laboratory, Postgraduate Program in Health Sciences, University of Southern Santa Catarina (UNISUL), Tubarão, Brazil
| | - Rafael Mariano de Bitencourt
- Behavioral Neuroscience Laboratory, Postgraduate Program in Health Sciences, University of Southern Santa Catarina (UNISUL), Tubarão, Brazil.
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Nuechterlein KH, Nasrallah H, Velligan D. Measuring Cognitive Impairments Associated With Schizophrenia in Clinical Practice: Overview of Current Challenges and Future Opportunities. Schizophr Bull 2025; 51:401-421. [PMID: 39088730 PMCID: PMC11997797 DOI: 10.1093/schbul/sbae051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/03/2024]
Abstract
BACKGROUND Cognitive impairment associated with schizophrenia (CIAS) negatively impacts daily functioning, quality of life, and recovery, yet effective pharmacotherapies and practical assessments for clinical practice are lacking. Despite the pivotal progress made with establishment of the Measurement and Treatment Research to Improve Cognition in Schizophrenia (MATRICS) Consensus Cognitive Battery (MCCB) for clinical research, implementation of the full MCCB is too time-consuming and cost-ineffective for most clinicians in clinical practice. STUDY DESIGN Here we discuss current assessments in relation to delivery format (interview-based and performance-based), validity, ease of use for clinicians and patients, reliability/reproducibility, cost-effectiveness, and suitability for clinical implementation. Key challenges and future opportunities for improving cognitive assessments are also presented. STUDY RESULTS Current assessments that require 30 min to complete would have value in clinical settings, but the associated staff training and time required might preclude their application in most clinical settings. Initial profiling of cognitive deficits may require about 30 min to assist in the selection of evidence-based treatments; follow-up monitoring with brief assessments (10-15 min in duration) to detect treatment-related effects on global cognition may complement this approach. Guidance on validated brief cognitive tests for the strategic monitoring of treatment effects on CIAS is necessary. CONCLUSIONS With increased advancements in technology-based and remote assessments, development of validated formats of remote and in-person assessment, and the necessary training models and infrastructure required for implementation, are likely to be of increasing clinical relevance for future clinical practice.
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Affiliation(s)
- Keith H Nuechterlein
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA
| | - Henry Nasrallah
- Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati School of Medicine, Cincinnati, OH
| | - Dawn Velligan
- Division of Schizophrenia and Related Disorders, Department of Psychiatry and Behavioral Sciences, University of Texas Health Science Center, San Antonio, TX
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8
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Pan W, Li T, Ma X, Huo X. Effects of transcranial direct current stimulation combined with retrieval practice on semantic memory in patients with schizophrenia. BMC Psychiatry 2025; 25:214. [PMID: 40055696 PMCID: PMC11889829 DOI: 10.1186/s12888-025-06530-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2024] [Accepted: 01/23/2025] [Indexed: 05/13/2025] Open
Abstract
BACKGROUND The semantic processing deficit stands as a central feature of cognitive abnormalities in schizophrenia. Both transcranial direct current stimulation (tDCS) and retrieval practice have been demonstrated as external techniques capable of ameliorating the semantic processing deficit in individuals with schizophrenia. The inquiry examines whether the combined effect of tDCS and retrieval practice, following tDCS intervention targeting the left dorsolateral prefrontal cortex (L-DLPFC) in patients with schizophrenia, contributes to the preservation of semantic memory in these individuals. METHODS We recruited 52 patients diagnosed with schizophrenia from hospitals. After five consecutive days of tDCS intervention (2 mA × 20 mins, twice per day), we administered a word list memorization task comparing retrieval practice and restudy strategies. Subsequently, we observed their immediate and delayed memory performance through tests. RESULTS The semantic memory performance of the anodal group significantly surpassed that of the sham group. There was a significant interaction between stimulation type and learning strategy; regardless of the stimulation modality employed, retrieval practice outperformed restudy strategy. Notably, the semantic memory performance under retrieval practice conditions in the anodal group was significantly superior. ARC clustering scores fully mediate stimulus type and retrieval practice recall rates. CONCLUSIONS Continuous periodic tDCS has the potential to enhance the efficacy of retrieval practice strategy, particularly in aiding patients with schizophrenia to improve the maintenance of semantic memory and refine memory organization. TRIAL REGISTRATION The present trial has been registered in the American Registry of Clinical Trials Center (ID: NCT06538259|| http://clinicaltrials.gov/ ) (Retrospectively Registered Date: 08/03/2024).
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Affiliation(s)
- Wen Pan
- School of Psychology, Northwest Normal University, Lanzhou, 730070, China
- Provincial Key Laboratory of behavioral and mental health, Lanzhou, 730070, China
| | - Tiantian Li
- School of Psychology, Northwest Normal University, Lanzhou, 730070, China
- Provincial Key Laboratory of behavioral and mental health, Lanzhou, 730070, China
| | - Xiaofeng Ma
- School of Psychology, Northwest Normal University, Lanzhou, 730070, China.
- Provincial Key Laboratory of behavioral and mental health, Lanzhou, 730070, China.
- Key Laboratory of Education Digitalization of Gansu Province, Lanzhou, China.
| | - Xiaoning Huo
- The Third People's Hospital of Lanzhou, Lanzhou, China
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Teasdale SB, Ardill-Young O, Crawford P, Gould P, Hennessy E, Inall B, King S, Lancaster R, Millett O, Pearson A, Roen J, Strong A, Surdut M, Burrows T, Curtis J, Ward PB, Mueller-Stierlin AS. Feasibility of a targeted nutrition-risk screening tool in Australian mental health services: The NutriMental screener. Nutr Diet 2025. [PMID: 39972546 DOI: 10.1111/1747-0080.70000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2024] [Revised: 01/06/2025] [Accepted: 01/31/2025] [Indexed: 02/21/2025]
Abstract
AIMS This study aimed to test the feasibility and acceptability of mental health clinicians using a multifaceted nutrition-risk screening tool in Australian mental health settings. METHODS A mixed-methods cross-sectional design was used. Mental health clinicians implemented the multifaceted NutriMental screener at seven sites across Australia and provided feedback via a standardised form. Primary outcomes were the feasibility, acceptability and appropriateness domains of the feedback questionnaire. Additional outcomes included association/agreement between the consumer's desire for dietetic support, clinicians' impression of need for dietetic support, and total nutrition risks reported. Directed content analysis was employed to analyse open-ended sections of the clinician feedback questionnaire. RESULTS Fifty-four clinicians participated, completing the NutriMental screener with a total of 256 mental health consumers. Mean total nutrition risks reported were 6.4 ± 1.8 (out of nine). Mean implementation outcomes (out of five) were 3.1 ± 0.8 for acceptability, 3.7 ± 0.5 for appropriateness, and 4.3 ± 1.7 for feasibility. There was moderate agreement between consumer's desire for dietetic support and clinicians' impression of need for dietetic support κ = 0.32 (95% CI: 0.21-0.43), p < 0.001, and positive correlations between the number of nutrition risks reported and consumer's desire for dietetic support (r = 0.29, p < 0.001) and clinicians' impression of need for dietetic support (r = 0.29, p < 0.001). Six themes and 17 subthemes related to barriers and facilitators to the screener's implementation were identified. CONCLUSION The multifaceted risk screening tool appears to be feasible, acceptable and appropriate for use within Australian mental health services. Refinements of the NutriMental screener based on clinician feedback may further improve its implementation.
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Affiliation(s)
- Scott B Teasdale
- Discipline of Psychiatry and Mental Health, School of Clinical Medicine, UNSW Sydney, Kensington, New South Wales, Australia
- Mindgardens Neuroscience Network, Randwick, New South Wales, Australia
| | - Oliver Ardill-Young
- Discipline of Psychiatry and Mental Health, School of Clinical Medicine, UNSW Sydney, Kensington, New South Wales, Australia
- Mindgardens Neuroscience Network, Randwick, New South Wales, Australia
- Mental Health Services, South Eastern Sydney Local Health District, Sydney, New South Wales, Australia
| | - Patricia Crawford
- St John of God Public and Private Hospitals Midland, Perth, Western Australia, Australia
| | - Patrick Gould
- Discipline of Psychiatry and Mental Health, School of Clinical Medicine, UNSW Sydney, Kensington, New South Wales, Australia
- Mental Health Services, South Eastern Sydney Local Health District, Sydney, New South Wales, Australia
| | - Erikka Hennessy
- Bloomfield Hospital, Western New South Wales Local Health District, Orange, New South Wales, Australia
| | - Bronwyn Inall
- Nepean Hospital, Nepean Blue Mountains Local Health District, Nepean, New South Wales, Australia
| | - Sarah King
- Thomas Embling Hospital, Forensicare, Fairfield, Victoria, Australia
| | - Rebecca Lancaster
- Community Mental Health Services, Sydney Local Health District, Sydney, New South Wales, Australia
| | - Olivia Millett
- Wagga Wagga Base Hospital, Murrumbidgee Local Health District, Murrumbidgee, New South Wales, Australia
| | - Abbey Pearson
- Keeping the Body in Mind Program, South Eastern Sydney Local Health District, Bondi Junction, Australia
| | - Julia Roen
- Concord Centre for Mental Health, Sydney Local Health District, Concord, New South Wales, Australia
| | - Alyssa Strong
- Nepean Hospital, Nepean Blue Mountains Local Health District, Nepean, New South Wales, Australia
| | - Mark Surdut
- Thomas Embling Hospital, Forensicare, Fairfield, Victoria, Australia
| | - Tracy Burrows
- School of Health Sciences, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, New South Wales, Australia
- Hunter Medical Research Institute, New Lambton, New South Wales, Australia
| | - Jackie Curtis
- Discipline of Psychiatry and Mental Health, School of Clinical Medicine, UNSW Sydney, Kensington, New South Wales, Australia
- Mindgardens Neuroscience Network, Randwick, New South Wales, Australia
- Mental Health Services, South Eastern Sydney Local Health District, Sydney, New South Wales, Australia
| | - Philip B Ward
- Discipline of Psychiatry and Mental Health, School of Clinical Medicine, UNSW Sydney, Kensington, New South Wales, Australia
- Schizophrenia Research Unit, South Western Sydney Local Health District and Ingham Institute of Applied Medical Research, Liverpool, Australia
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Yin J, Gan Y, Jiang C, Wang J, Zhou Z. Disturbance of neurotransmitter metabolites in peripheral blood of schizophrenia patients treated with olanzapine: a preliminary targeted metabolomic study. BMC Psychiatry 2025; 25:142. [PMID: 39966737 PMCID: PMC11837362 DOI: 10.1186/s12888-025-06584-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Accepted: 02/05/2025] [Indexed: 02/20/2025] Open
Abstract
BACKGROUND The aim of this research was to characterize changes in peripheral blood neurotransmitter metabolites in olanzapine-treated schizophrenia (SCZ) and to identify potential biomarkers for SCZ. Concurrently, the relationship between these differential neurotransmitters and cognitive function is explored. METHODS We recruited 40 SCZ treated with single-agent olanzapine and 40 healthy controls (HC). Cognitive function and psychopathology were assessed using the MCCB and PANSS, respectively. Neurotransmitter levels were determined by targeted metabolomics approach using liquid chromatography-mass spectrometry (LC/MS). RESULTS SCZ showed cognitive impairment in all domains of the MCCB compared to HC. Interestingly, a 4-neurotransmitter panel consisting of 3-Methoxytyramine hydrochloride (3-MT), 3,4-Dihydroxyphenylacetate (DOPAC), arginine, and r-aminobutyric acid (GABA) illustrated the highest determinative score between SCZ and HC. Arginine was positively correlated with PANSS general psychopathology scores. 3-MT independently predicted the verbal learning scores only in SCZ, whereas GABA independently predicted the social cognition scores only. Furthermore, GABA independently predicted the working memory scores only in HC. CONCLUSIONS The collective assessment of these four neurotransmitters (3-MT, DOPAC, arginine, and GABA) holds considerable promise as potential biomarkers for SCZ. Moreover, 3-MT and GABA may enhance our understanding of cognitive dysfunction in SCZ, particularly in areas of verbal learning and social cognitive dysfunction.
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Affiliation(s)
- Jiajun Yin
- Department of Psychiatry, The Affiliated Mental Health Center of Jiangnan University, Wuxi City, 214151, China
| | - Yansha Gan
- Department of Psychiatry, The Affiliated Mental Health Center of Jiangnan University, Wuxi City, 214151, China
| | - Chenguang Jiang
- Department of Psychosomatics and Psychiatry, ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Jun Wang
- Department of Psychiatry, The Affiliated Mental Health Center of Jiangnan University, Wuxi City, 214151, China.
| | - Zhenhe Zhou
- Department of Psychiatry, The Affiliated Mental Health Center of Jiangnan University, Wuxi City, 214151, China.
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11
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Chen Y, Xia N, Li J, Liang W, Yin Y, Zhai L, Wang M, Wang Q, Zhang J. Effect of intermittent theta burst stimulation combined with acoustic startle priming motor training on upper limb motor function and neural plasticity in stroke individuals: study protocol for a randomised controlled proof-of-concept trial. BMJ Open 2025; 15:e090049. [PMID: 39894516 PMCID: PMC11792295 DOI: 10.1136/bmjopen-2024-090049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2024] [Accepted: 01/14/2025] [Indexed: 02/04/2025] Open
Abstract
INTRODUCTION Stroke is a major cause of acquired disability globally, yet the neural mechanisms driving motor recovery post-stroke remain elusive. Recent research has underscored the growing significance of subcortical pathways in neural plasticity and motor control. Among these, the cortico-reticulospinal tract (CRST) has gained attention in rehabilitation due to its unique ascending and descending structural features as well as its cellular properties which position it as an excellent candidate to compensate for inadequate motor control post-stroke. However, the optimal strategies to harness the CRST for motor recovery remain unknown. Non-invasive modulation of the CRST presents a promising though challenging, therapeutic opportunity. Acoustic startle priming (ASP) training and intermittent theta burst stimulation (iTBS) are emerging as potential methods to regulate CRST function. This study aims to investigate the feasibility of segmentally modulating the cortico-reticular and reticulospinal tracts through ASP and iTBS while evaluating the resulting therapeutic effects. METHODS AND ANALYSIS This is a randomised, blinded interventional trial with three parallel groups. A total of 36 eligible participants will be randomly assigned to one of three groups: (1) iTBS+ASP group, (2) iTBS+non-ASP group, (3) sham iTBS+ASP group. The trial comprises four phases: baseline assessment, post-first intervention assessment, assessment after 3 weeks of intervention and a 4-week follow-up. The primary outcomes are the changes in the Fugl-Meyer Assessment-Upper Extremity and Modified Ashworth Scale after the 3-week intervention. Secondary outcomes include neurophysiological metrics and neuroimaging results from diffusion tensor imaging and resting-state functional MRI. ETHICS AND DISSEMINATION The trial is registered with the Chinese Clinical Trial Registry (Registration No. ChiCTR2400085220) and Medical Ethics Committee of Tongji Hospital, affiliated with Tongji Medical College, Huazhong University of Science and Technology (Registration No.TJ-IRB20231109). It will be conducted in the Departments of Rehabilitation Medicine and Radiology at Tongji Hospital in Wuhan, China. The findings will be disseminated through peer-reviewed journal publications and presentations at scientific conferences. TRIAL REGISTRATION NUMBER ChiCTR2400085220.
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Affiliation(s)
- Yu Chen
- Department of Radiology, Huazhong University of Science and Technology Tongji Medical College Tongji Hospital, Wuhan, Hubei, China
| | - Nan Xia
- Department of Rehabilitation Medicine, Huazhong University of Science and Technology Tongji Medical College Tongji Hospital, Wuhan, Hubei, China
| | - Jinghong Li
- Department of Rehabilitation Medicine, Huazhong University of Science and Technology Tongji Medical College Tongji Hospital, Wuhan, Hubei, China
| | - Weiqiang Liang
- Department of Radiology, Huazhong University of Science and Technology Tongji Medical College Tongji Hospital, Wuhan, Hubei, China
| | - Yangyang Yin
- Department of Radiology, Huazhong University of Science and Technology Tongji Medical College Tongji Hospital, Wuhan, Hubei, China
| | - Linhan Zhai
- Department of Radiology, Huazhong University of Science and Technology Tongji Medical College Tongji Hospital, Wuhan, Hubei, China
| | - Mingzhu Wang
- Department of Rehabilitation Medicine, Huazhong University of Science and Technology Tongji Medical College Tongji Hospital, Wuhan, Hubei, China
| | - Qiuxia Wang
- Department of Radiology, Huazhong University of Science and Technology Tongji Medical College Tongji Hospital, Wuhan, Hubei, China
| | - Jing Zhang
- Department of Radiology, Huazhong University of Science and Technology Tongji Medical College Tongji Hospital, Wuhan, Hubei, China
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12
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Donati FL, Mayeli A, Nascimento Couto BA, Sharma K, Janssen S, Krafty RJ, Casali AG, Ferrarelli F. Prefrontal Oscillatory Slowing in Early-Course Schizophrenia Is Associated With Worse Cognitive Performance and Negative Symptoms: A Transcranial Magnetic Stimulation-Electroencephalography Study. BIOLOGICAL PSYCHIATRY. COGNITIVE NEUROSCIENCE AND NEUROIMAGING 2025; 10:158-166. [PMID: 39059465 PMCID: PMC11759720 DOI: 10.1016/j.bpsc.2024.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 07/02/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024]
Abstract
BACKGROUND Abnormalities in dorsolateral prefrontal cortex (DLPFC) oscillations are neurophysiological signatures of schizophrenia thought to underlie its cognitive deficits. Transcranial magnetic stimulation with electroencephalography (TMS-EEG) provides a measure of cortical oscillations unaffected by sensory relay functionality and/or patients' level of engagement, which are important confounding factors in schizophrenia. Previous TMS-EEG work showed reduced fast, gamma-range oscillations and a slowing of the main DLPFC oscillatory frequency, or natural frequency, in chronic schizophrenia. However, it is unclear whether this DLPFC natural frequency slowing is present in early-course schizophrenia (EC-SCZ) and is associated with symptom severity and cognitive dysfunction. METHODS We applied TMS-EEG to the left DLPFC in 30 individuals with EC-SCZ and 28 healthy control participants. Goal-directed working memory performance was assessed using the AX-Continuous Performance Task. The EEG frequency with the highest cumulative power at the stimulation site, or natural frequency, was extracted. We also calculated the local relative spectral power as the average power in each frequency band divided by the broadband power. RESULTS Compared with the healthy control group, the EC-SCZ group had reduced DLPFC natural frequency (p = .0000002, Cohen's d = -2.32) and higher DLPFC beta-range relative spectral power (p = .0003, Cohen's d = 0.77). In the EC-SCZ group, the DLPFC natural frequency was inversely associated with negative symptoms. Across all participants, the beta band relative spectral power negatively correlated with AX-Continuous Performance Task performance. CONCLUSIONS DLPFC oscillatory slowing is an early pathophysiological biomarker of schizophrenia that is associated with its symptom severity and cognitive impairments. Future work should assess whether noninvasive neurostimulation, including repetitive TMS, can ameliorate prefrontal oscillatory deficits and related clinical functions in patients with EC-SCZ.
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Affiliation(s)
- Francesco L Donati
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Health Science, University of Milan, Milan, Italy
| | - Ahmad Mayeli
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, Pennsylvania
| | | | - Kamakashi Sharma
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Sabine Janssen
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Robert J Krafty
- Department of Biostatistics & Bioinformatics, Emory University, Atlanta, Georgia
| | - Adenauer G Casali
- Institute of Science and Technology, Federal University of São Paulo, São José dos Campos, Brazil
| | - Fabio Ferrarelli
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, Pennsylvania.
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13
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Hung CC, Lin KH, Chang HA. Exploring Cognitive Deficits and Neuromodulation in Schizophrenia: A Narrative Review. MEDICINA (KAUNAS, LITHUANIA) 2024; 60:2060. [PMID: 39768939 PMCID: PMC11676924 DOI: 10.3390/medicina60122060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2024] [Revised: 12/07/2024] [Accepted: 12/11/2024] [Indexed: 01/11/2025]
Abstract
Cognitive deficits are emerging as critical targets for managing schizophrenia and enhancing clinical and functional outcomes. These deficits are pervasive among individuals with schizophrenia, affecting various cognitive domains. Traditional pharmacotherapy and cognitive behavioral therapy (CBT) have limitations in effectively addressing cognitive impairments in this population. Neuromodulation techniques show promise in improving certain cognitive domains among patients with schizophrenia spectrum disorders. Understanding the mechanisms of neural circuits that underlie cognitive enhancement is essential for elucidating the pathophysiological processes of the disorder, and these insights could significantly optimize strategies for managing schizophrenia. Meanwhile, although there is an increasing body of evidence demonstrating the therapeutic effects of neuromodulation in this area, further research is still needed, particularly regarding topics such as different treatment protocols and the long-term effects of treatment.
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Affiliation(s)
- Chien-Chen Hung
- Department of Psychiatry, Tzu Chi General Hospital, Hualien 970, Taiwan;
| | - Ko-Huan Lin
- Department of Psychiatry, Tzu Chi General Hospital, Hualien 970, Taiwan;
- Non-Invasive Neuromodulation Consortium for Mental Disorders, Society of Psychophysiology, Taipei 114, Taiwan
| | - Hsin-An Chang
- Non-Invasive Neuromodulation Consortium for Mental Disorders, Society of Psychophysiology, Taipei 114, Taiwan
- Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei 112, Taiwan
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14
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Checa-Robles FJ, Salvetat N, Cayzac C, Menhem M, Favier M, Vetter D, Ouna I, Nani JV, Hayashi MAF, Brietzke E, Weissmann D. RNA Editing Signatures Powered by Artificial Intelligence: A New Frontier in Differentiating Schizophrenia, Bipolar, and Schizoaffective Disorders. Int J Mol Sci 2024; 25:12981. [PMID: 39684694 DOI: 10.3390/ijms252312981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2024] [Revised: 11/22/2024] [Accepted: 11/29/2024] [Indexed: 12/18/2024] Open
Abstract
Mental health disorders are devastating illnesses, often misdiagnosed due to overlapping clinical symptoms. Among these conditions, bipolar disorder, schizophrenia, and schizoaffective disorder are particularly difficult to distinguish, as they share alternating positive and negative mood symptoms. Accurate and timely diagnosis of these diseases is crucial to ensure effective treatment and to tailor therapeutic management to each individual patient. In this context, it is essential to move beyond standard clinical assessment and employ innovative approaches to identify new biomarkers that can be reliably quantified. We previously identified a panel of RNA editing biomarkers capable of differentiating healthy controls from depressed patients and, among depressed patients, those with major depressive disorder and those with bipolar disorder. In this study, we integrated Adenosine-to-Inosine RNA editing blood biomarkers with clinical data through machine learning algorithms to establish specific signatures for bipolar disorder and schizophrenia spectrum disorders. This groundbreaking study paves the way for the application of RNA editing in other psychiatric disorders, such as schizophrenia and schizoaffective disorder. It represents a first proof-of-concept and provides compelling evidence for the establishment of an RNA editing signature for the diagnosis of these psychiatric conditions.
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Affiliation(s)
- Francisco J Checa-Robles
- ALCEDIAG, Parc Euromédecine, 34184 Montpellier Cedex 4, France
- Sys2Diag, UMR 9005 CNRS/ALCEN, Parc Euromédecine, 34184 Montpellier Cedex 4, France
| | - Nicolas Salvetat
- ALCEDIAG, Parc Euromédecine, 34184 Montpellier Cedex 4, France
- Sys2Diag, UMR 9005 CNRS/ALCEN, Parc Euromédecine, 34184 Montpellier Cedex 4, France
| | - Christopher Cayzac
- ALCEDIAG, Parc Euromédecine, 34184 Montpellier Cedex 4, France
- Sys2Diag, UMR 9005 CNRS/ALCEN, Parc Euromédecine, 34184 Montpellier Cedex 4, France
| | - Mary Menhem
- ALCEDIAG, Parc Euromédecine, 34184 Montpellier Cedex 4, France
- Sys2Diag, UMR 9005 CNRS/ALCEN, Parc Euromédecine, 34184 Montpellier Cedex 4, France
| | - Mathieu Favier
- ALCEDIAG, Parc Euromédecine, 34184 Montpellier Cedex 4, France
- Sys2Diag, UMR 9005 CNRS/ALCEN, Parc Euromédecine, 34184 Montpellier Cedex 4, France
| | - Diana Vetter
- ALCEDIAG, Parc Euromédecine, 34184 Montpellier Cedex 4, France
- Sys2Diag, UMR 9005 CNRS/ALCEN, Parc Euromédecine, 34184 Montpellier Cedex 4, France
| | - Ilhème Ouna
- Sys2Diag, UMR 9005 CNRS/ALCEN, Parc Euromédecine, 34184 Montpellier Cedex 4, France
| | - João V Nani
- Department of Pharmacology, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo CEP 04044-20, Brazil
- National Institute for Translational Medicine (INCT-TM, CNPq/FAPESP/CAPES), Ribeirão Preto CEP 14040-900, Brazil
| | - Mirian A F Hayashi
- Department of Pharmacology, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo CEP 04044-20, Brazil
- National Institute for Translational Medicine (INCT-TM, CNPq/FAPESP/CAPES), Ribeirão Preto CEP 14040-900, Brazil
| | - Elisa Brietzke
- Department of Psychiatry, School of Medicine, Queen's University, Kingston, ON K7L 7X3, Canada
| | - Dinah Weissmann
- ALCEDIAG, Parc Euromédecine, 34184 Montpellier Cedex 4, France
- Sys2Diag, UMR 9005 CNRS/ALCEN, Parc Euromédecine, 34184 Montpellier Cedex 4, France
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15
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Chen X, Fan Y, Yan M, Zhang JE. The Mediating Role of Sleep Quality in the Association Between Negative Affect and Cognitive Function Among Patients With Nasopharyngeal Carcinoma After Intensity-Modulated Radiotherapy. Cancer Nurs 2024; 47:505-513. [PMID: 37088890 DOI: 10.1097/ncc.0000000000001236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
BACKGROUND Cognitive function impairment is a severe yet largely unrecognized adverse reaction among patients with nasopharyngeal carcinoma (NPC) following radiotherapy. OBJECTIVES The aims of this study were to examine the level of cognitive function, explore the influencing factors of the cognitive function of NPC after intensity-modulated radiotherapy (IMRT), and identify the mediating role of sleep quality between negative affect and cognitive function. METHODS In total, 200 patients with NPC after IMRT were recruited from a tertiary cancer center in Southern China between September 2020 and March 2021. Participants completed the demographic and disease-related questionnaire, Montreal Cognitive Assessment Scale, Profile of Mood States-Short Form, and Pittsburgh Sleep Quality Index. RESULTS The mean Montreal Cognitive Assessment Scale scores were 24.42 after adjustment, with 54.5% of patients having cognitive function impairment. Education level, income, seeking rehabilitation knowledge, radiation dose, sleep quality, and negative affect entered the final regression model and explained 82.6% of cognitive function variance. The total and direct effects of negative affect and indirect effects via sleep quality on cognitive function were significant ( P < .05). CONCLUSIONS Clinicians should pay close attention to patients with poor educational levels, low income, and having difficulties seeking rehabilitation knowledge and patients who accept higher radiation doses. Improving their sleep quality and positive affect may contribute to preventing or reducing cognitive function impairment. IMPLICATIONS FOR PRACTICE Clinical nurses should pay more attention to cognitive function among NPC patients after IMRT and take effective measures or interventions to prevent and reduce their cognitive function impairment.
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Affiliation(s)
- Ximei Chen
- Author Affiliations: School of Nursing, Sun Yat-sen University (Dr Zhang); Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center (Ms Fan); and Hospital of Stomatology, Sun Yat-sen University (Ms Chen and Mr Yan), Guangzhou, Guangdong, People's Republic of China
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Santarriaga S, Gerlovin K, Layadi Y, Karmacharya R. Human stem cell-based models to study synaptic dysfunction and cognition in schizophrenia: A narrative review. Schizophr Res 2024; 273:78-97. [PMID: 36925354 PMCID: PMC10500041 DOI: 10.1016/j.schres.2023.02.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 02/27/2023] [Accepted: 02/28/2023] [Indexed: 03/18/2023]
Abstract
Cognitive impairment is the strongest predictor of functional outcomes in schizophrenia and is hypothesized to result from synaptic dysfunction. However, targeting synaptic plasticity and cognitive deficits in patients remains a significant clinical challenge. A comprehensive understanding of synaptic plasticity and the molecular basis of learning and memory in a disease context can provide specific targets for the development of novel therapeutics targeting cognitive impairments in schizophrenia. Here, we describe the role of synaptic plasticity in cognition, summarize evidence for synaptic dysfunction in schizophrenia and demonstrate the use of patient derived induced-pluripotent stem cells for studying synaptic plasticity in vitro. Lastly, we discuss current advances and future technologies for bridging basic science research of synaptic dysfunction with clinical and translational research that can be used to predict treatment response and develop novel therapeutics.
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Affiliation(s)
- Stephanie Santarriaga
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA; Chemical Biology and Therapeutic Science Program, Broad Institute of MIT and Harvard, Cambridge, MA, USA; Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Kaia Gerlovin
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA; Chemical Biology and Therapeutic Science Program, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Yasmine Layadi
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA; Chimie ParisTech, Université Paris Sciences et Lettres, Paris, France
| | - Rakesh Karmacharya
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA; Chemical Biology and Therapeutic Science Program, Broad Institute of MIT and Harvard, Cambridge, MA, USA; Department of Psychiatry, Harvard Medical School, Boston, MA, USA; Schizophrenia and Bipolar Disorder Program, McLean Hospital, Belmont, MA, USA.
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17
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Chen YN, Kostka JK. Beyond anosmia: olfactory dysfunction as a common denominator in neurodegenerative and neurodevelopmental disorders. Front Neurosci 2024; 18:1502779. [PMID: 39539496 PMCID: PMC11557544 DOI: 10.3389/fnins.2024.1502779] [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: 09/27/2024] [Accepted: 10/21/2024] [Indexed: 11/16/2024] Open
Abstract
Olfactory dysfunction has emerged as a hallmark feature shared among several neurological conditions, including both neurodevelopmental and neurodegenerative disorders. While diseases of both categories have been extensively studied for decades, their association with olfaction has only recently gained attention. Olfactory deficits often manifest already during prodromal stages of these diseases, yet it remains unclear whether common pathophysiological changes along olfactory pathways cause such impairments. Here we probe into the intricate relationship between olfactory dysfunction and neurodegenerative and neurodevelopmental disorders, shedding light on their commonalities and underlying mechanisms. We begin by providing a brief overview of the olfactory circuit and its connections to higher-associated brain areas. Additionally, we discuss olfactory deficits in these disorders, focusing on potential common mechanisms that may contribute to olfactory dysfunction across both types of disorders. We further debate whether olfactory deficits contribute to the disease propagation or are simply an epiphenomenon. We conclude by emphasizing the significance of olfactory function as a potential pre-clinical diagnostic tool to identify individuals with neurological disorders that offers the opportunity for preventive intervention before other symptoms manifest.
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Affiliation(s)
- Yu-Nan Chen
- Institute of Developmental Neuroscience, Center of Molecular Neurobiology, Hamburg Center of Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Johanna Katharina Kostka
- Institute of Developmental Neuroscience, Center of Molecular Neurobiology, Hamburg Center of Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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18
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Li X, Xiang Q, Cen H, Zhai Z, Gao T, Lu C, Dong Y, Ye Y, Zhang C, Zhuo K, Wang Y, Liu D. Efficacy of Cortical-Hippocampal Target Intermittent Theta Burst Stimulation (iTBS) on Associative Memory of Schizophrenia: A Double-Blind, Randomized Sham-Controlled Trial. Neuropsychiatr Dis Treat 2024; 20:1941-1955. [PMID: 39411184 PMCID: PMC11473991 DOI: 10.2147/ndt.s468219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 09/21/2024] [Indexed: 10/19/2024] Open
Abstract
Objective The objective of our study was to evaluate whether intermittent theta burst stimulation(iTBS) applied to the regions with the strongest cortico-hippocampal connectivity within the lateral parietal cortical (LPC) or dorsolateral prefrontal cortical (DLPFC) areas in individuals with schizophrenia could enhance associative memory. Methods We randomized 96 participants with schizophrenia to receive either active iTBS applied to the right DLPFC, left LPC or sham iTBS for 20 days. Clinical and cognitive assessments were performed at baseline and at the end of treatment. The primary outcome was change in associative memory. The secondary outcome was change in other cognitive functions and psychiatric symptoms. Results In comparison to the sham group, iTBS targeting the right DLPFC or left LPC in schizophrenia did not yield significant improvements in auditory-auditory associative memory (F=1.27, p=0.294), auditory-visual associative memory (F=0.49, p=0.617), or visual-visual associative memory (F=1.094, p=0.347). Furthermore, after adjusting for variables such as education, disease duration, and negative symptoms, no significant changes were observed in any of these three memory domains. Conclusion Although our study suggests that iTBS applied to the cortical-hippocampal did not lead to a significant change in associative memory. However, further investigation combining hippocampal-targeted iTBS with functional magnetic resonance imaging (fMRI) is warranted to elucidate the regulatory effects of iTBS on hippocampal function. Trial Registration clinicaltrials.gov NCT03608462.
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Affiliation(s)
- Xuan Li
- Division of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
- Clinical Center for Psychotic Disorders, National Center for Mental Disorders, Shanghai, People’s Republic of China
| | - Qiong Xiang
- Division of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
- Clinical Center for Psychotic Disorders, National Center for Mental Disorders, Shanghai, People’s Republic of China
| | - Haixin Cen
- Division of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
- Clinical Center for Psychotic Disorders, National Center for Mental Disorders, Shanghai, People’s Republic of China
| | - Zhaolin Zhai
- Division of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
- Clinical Center for Psychotic Disorders, National Center for Mental Disorders, Shanghai, People’s Republic of China
- Department of Psychiatry, Huashan Hospital, Fudan University, Shanghai, People’s Republic of China
| | - Tianhao Gao
- Division of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
- Clinical Center for Psychotic Disorders, National Center for Mental Disorders, Shanghai, People’s Republic of China
- Department of Psychiatry, Huashan Hospital, Fudan University, Shanghai, People’s Republic of China
| | - Chang Lu
- Division of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
- Clinical Center for Psychotic Disorders, National Center for Mental Disorders, Shanghai, People’s Republic of China
- Department of Psychiatry, Huashan Hospital, Fudan University, Shanghai, People’s Republic of China
| | - Yuke Dong
- Division of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
- Clinical Center for Psychotic Disorders, National Center for Mental Disorders, Shanghai, People’s Republic of China
- Department of Psychiatry, Huashan Hospital, Fudan University, Shanghai, People’s Republic of China
| | - Yujian Ye
- Division of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
- Clinical Center for Psychotic Disorders, National Center for Mental Disorders, Shanghai, People’s Republic of China
| | - Chenxi Zhang
- Department of Psychiatry, Feng Xian Mental Health Center, Shanghai, People’s Republic of China
| | - Kaiming Zhuo
- Division of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
- Clinical Center for Psychotic Disorders, National Center for Mental Disorders, Shanghai, People’s Republic of China
| | - Yan Wang
- School of Psychology and Cognitive Science, East China Normal University, Shanghai, People’s Republic of China
| | - Dengtang Liu
- Division of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
- Clinical Center for Psychotic Disorders, National Center for Mental Disorders, Shanghai, People’s Republic of China
- Department of Psychiatry, Huashan Hospital, Fudan University, Shanghai, People’s Republic of China
- Institute of Mental Health, Fudan University, Shanghai, People’s Republic of China
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
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19
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Klausing AD, Fukuwatari T, DeAngeli N, Bucci DJ, Schwarcz R. Adrenalectomy exacerbates stress-induced impairment in fear discrimination: A causal role for kynurenic acid? Biochem Pharmacol 2024; 228:116350. [PMID: 38852644 DOI: 10.1016/j.bcp.2024.116350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/28/2024] [Accepted: 06/06/2024] [Indexed: 06/11/2024]
Abstract
Impaired activity of the hypothalamic-pituitary axis and reduced blood levels of glucocorticoids (GCs) are signature features of stress-related maladies. Recent evidence suggests a possible role of the tryptophan metabolite kynurenic acid (KYNA) in this context. Here we investigated possible causal relationships in adult male rats, using stress-induced fear discrimination as a translationally relevant behavioral outcome measure. One week following adrenalectomy (ADX) or sham surgery, animals were for 2 h either physically restrained or exposed to a predator odor, which caused a much milder stress response. Extracellular KYNA levels were determined before, during and after stress by in vivo microdialysis in the prefrontal cortex. Separate cohorts underwent a fear discrimination procedure starting immediately after stress termination. Different auditory conditioned stimuli (CS) were either paired with a foot shock (CS+) or non-reinforced (CS-). One week later, fear was assessed by re-exposing the animals to each CS. Separate groups of rats were treated with the KYNA synthesis inhibitor BFF-816 prior to stress initiation to test a causal role of KYNA in fear discrimination. Restraint stress raised extracellular KYNA levels by ∼85 % in ADX rats for several hours, and these animals were unable to discriminate between CS+ and CS-. Both effects were prevented by BFF-816 and were not observed after exposure to predator odor or in sham-operated rats. These findings suggest that a causal connection exists between adrenal function, stress-induced KYNA increases, and behavioral deficits. Pharmacological inhibition of KYNA synthesis may therefore be an attractive, novel option for the treatment of stress-related disorders.
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Affiliation(s)
- Alex D Klausing
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Tsutomu Fukuwatari
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Nicole DeAngeli
- Department of Psychological and Brain Sciences, Dartmouth College, Hanover, NH, USA
| | - David J Bucci
- Department of Psychological and Brain Sciences, Dartmouth College, Hanover, NH, USA
| | - Robert Schwarcz
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA.
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20
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Clarin JD, Bouras NN, Gao WJ. Genetic Diversity in Schizophrenia: Developmental Implications of Ultra-Rare, Protein-Truncating Mutations. Genes (Basel) 2024; 15:1214. [PMID: 39336805 PMCID: PMC11431303 DOI: 10.3390/genes15091214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2024] [Revised: 09/06/2024] [Accepted: 09/10/2024] [Indexed: 09/30/2024] Open
Abstract
The genetic basis of schizophrenia (SZ) remains elusive despite its characterization as a highly heritable disorder. This incomplete understanding has led to stagnation in therapeutics and treatment, leaving many suffering with insufficient relief from symptoms. However, recent large-cohort genome- and exome-wide association studies have provided insights into the underlying genetic machinery. The scale of these studies allows for the identification of ultra-rare mutations that confer substantial disease risk, guiding clinicians and researchers toward general classes of genes that are central to SZ etiology. One such large-scale collaboration effort by the Schizophrenia Exome Sequencing Meta-Analysis consortium identified ten, high-risk, ultra-rare, protein-truncating variants, providing the clearest picture to date of the dysfunctional gene products that substantially increase risk for SZ. While genetic studies of SZ provide valuable information regarding "what" genes are linked with the disorder, it is an open question as to "when" during brain development these genetic mutations impose deleterious effects. To shed light on this unresolved aspect of SZ etiology, we queried the BrainSpan developmental mRNA expression database for these ten high-risk genes and discovered three general expression trajectories throughout pre- and postnatal brain development. The elusiveness of SZ etiology, we infer, is not only borne out of the genetic heterogeneity across clinical cases, but also in our incomplete understanding of how genetic mutations perturb neurodevelopment during multiple critical periods. We contextualize this notion within the National Institute of Mental Health's Research Domain Criteria framework and emphasize the utility of considering both genetic variables and developmental context in future studies.
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Affiliation(s)
| | | | - Wen-Jun Gao
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, USA; (J.D.C.); (N.N.B.)
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21
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Berry JA, Guhle DC, Davis RL. Active forgetting and neuropsychiatric diseases. Mol Psychiatry 2024; 29:2810-2820. [PMID: 38532011 PMCID: PMC11420092 DOI: 10.1038/s41380-024-02521-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 03/04/2024] [Accepted: 03/06/2024] [Indexed: 03/28/2024]
Abstract
Recent and pioneering animal research has revealed the brain utilizes a variety of molecular, cellular, and network-level mechanisms used to forget memories in a process referred to as "active forgetting". Active forgetting increases behavioral flexibility and removes irrelevant information. Individuals with impaired active forgetting mechanisms can experience intrusive memories, distressing thoughts, and unwanted impulses that occur in neuropsychiatric diseases. The current evidence indicates that active forgetting mechanisms degrade, or mask, molecular and cellular memory traces created in synaptic connections of "engram cells" that are specific for a given memory. Combined molecular genetic/behavioral studies using Drosophila have uncovered a complex system of cellular active-forgetting pathways within engram cells that is regulated by dopamine neurons and involves dopamine-nitric oxide co-transmission and reception, endoplasmic reticulum Ca2+ signaling, and cytoskeletal remodeling machinery regulated by small GTPases. Some of these molecular cellular mechanisms have already been found to be conserved in mammals. Interestingly, some pathways independently regulate forgetting of distinct memory types and temporal phases, suggesting a multi-layering organization of forgetting systems. In mammals, active forgetting also involves modulation of memory trace synaptic strength by altering AMPA receptor trafficking. Furthermore, active-forgetting employs network level mechanisms wherein non-engram neurons, newly born-engram neurons, and glial cells regulate engram synapses in a state and experience dependent manner. Remarkably, there is evidence for potential coordination between the network and cellular level forgetting mechanisms. Finally, subjects with several neuropsychiatric diseases have been tested and shown to be impaired in active forgetting. Insights obtained from research on active forgetting in animal models will continue to enrich our understanding of the brain dysfunctions that occur in neuropsychiatric diseases.
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Affiliation(s)
- Jacob A Berry
- Department of Biological Sciences, University of Alberta, Edmonton, AL, T6G 2E9, Canada.
| | - Dana C Guhle
- Department of Biological Sciences, University of Alberta, Edmonton, AL, T6G 2E9, Canada
| | - Ronald L Davis
- Department of Neuroscience, UF Scripps Institute for Biomedical Innovation & Technology, 130 Scripps Way, Jupiter, FL, 33458, USA.
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22
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Li T, Ma X, Pan W, Huo X. The impact of transcranial direct current stimulation combined with interim testing on spatial route learning in patients with schizophrenia. J Psychiatr Res 2024; 177:169-176. [PMID: 39024741 DOI: 10.1016/j.jpsychires.2024.07.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 07/06/2024] [Accepted: 07/11/2024] [Indexed: 07/20/2024]
Abstract
BACKGROUND Cognitive deficits in patients with schizophrenia have drawn widespread attention. Transcranial direct current stimulation (tDCS) can modulate cognitive processes by altering neuronal excitability. Previous studies have found that interim testing can enhance spatial route learning and memory in patients with schizophrenia. However, there has been limited research on the combined effects of these two methods on spatial route learning in these patients. OBJECTIVE To investigate whether the combination of tDCS and interim testing can effectively contribute to the maintenance of spatial route memory in patients with schizophrenia. The study involved conducting route learning using interim testing after anodal tDCS treatment on the left dorsolateral prefrontal cortex (L-DLPFC). METHODS Ninety-two patients with schizophrenia were recruited and divided into groups receiving anodal, sham, or no stimulation. The anodal group received L-DLPFC tDCS treatment 10 times over 5 days (twice daily for 20 min). After treatment, spatial route learning was assessed in interim testing. Correct recall rates of landmark positions and proactive interference from prior learning were compared among the groups. RESULTS Regardless of stimulation type, the interim testing group outperformed the relearning group. Additionally, recall scores were higher following anodal stimulation, indicating the efficacy of tDCS. CONCLUSIONS Both tDCS and interim testing independently enhance the ability to learn new information in spatial route learning for patients with schizophrenia, indicating that tDCS of the left DLPFC significantly improves memory in these patients.
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Affiliation(s)
- Tiantian Li
- School of Psychology, Northwest Normal University, Lanzhou, 730070, China; Provincial Key Laboratory of Behavioral and Mental Health, Lanzhou, 730070, China
| | - Xiaofeng Ma
- School of Psychology, Northwest Normal University, Lanzhou, 730070, China; Provincial Key Laboratory of Behavioral and Mental Health, Lanzhou, 730070, China.
| | - Wen Pan
- School of Psychology, Northwest Normal University, Lanzhou, 730070, China; Provincial Key Laboratory of Behavioral and Mental Health, Lanzhou, 730070, China
| | - Xiaoning Huo
- The Third People's Hospital of Lanzhou, Lanzhou, China
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23
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Żabińska M, Wiśniewska K, Węgrzyn G, Pierzynowska K. Exploring the physiological role of the G protein-coupled estrogen receptor (GPER) and its associations with human diseases. Psychoneuroendocrinology 2024; 166:107070. [PMID: 38733757 DOI: 10.1016/j.psyneuen.2024.107070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 04/15/2024] [Accepted: 05/05/2024] [Indexed: 05/13/2024]
Abstract
Estrogen is a group of hormones that collaborate with the nervous system to impact the overall well-being of all genders. It influences many processes, including those occurring in the central nervous system, affecting learning and memory, and playing roles in neurodegenerative diseases and mental disorders. The hormone's action is mediated by specific receptors. Significant roles of classical estrogen receptors, ERα and ERβ, in various diseases were known since many years, but after identifying a structurally and locationally distinct receptor, the G protein-coupled estrogen receptor (GPER), its role in human physiology and pathophysiology was investigated. This review compiles GPER-related information, highlighting its impact on homeostasis and diseases, while putting special attention on functions and dysfunctions of this receptor in neurobiology and biobehavioral processes. Understanding the receptor modulation possibilities is essential for therapy, as disruptions in receptors can lead to diseases or disorders, irrespective of correct estrogen levels. We conclude that studies on the GPER receptor have the potential to develop therapies that regulate estrogen and positively impact human health.
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Affiliation(s)
- Magdalena Żabińska
- Department of Molecular Biology, Faculty of Biology, University of Gdansk, Wita Stwosza 59, Gdansk 80-308, Poland
| | - Karolina Wiśniewska
- Department of Molecular Biology, Faculty of Biology, University of Gdansk, Wita Stwosza 59, Gdansk 80-308, Poland
| | - Grzegorz Węgrzyn
- Department of Molecular Biology, Faculty of Biology, University of Gdansk, Wita Stwosza 59, Gdansk 80-308, Poland
| | - Karolina Pierzynowska
- Department of Molecular Biology, Faculty of Biology, University of Gdansk, Wita Stwosza 59, Gdansk 80-308, Poland.
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24
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Selesnick S. Neural waves and computation in a neural net model II: Data-like structures and the dynamics of episodic memory. J Comput Neurosci 2024; 52:223-243. [PMID: 39083150 DOI: 10.1007/s10827-024-00876-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 07/18/2024] [Accepted: 07/19/2024] [Indexed: 08/16/2024]
Abstract
The computational resources of a neuromorphic network model introduced earlier were investigated in the first paper of this series. It was argued that a form of ubiquitous spontaneous local convolution enabled logical gate-like neural motifs to form into hierarchical feed-forward structures of the Hubel-Wiesel type. Here we investigate concomitant data-like structures and their dynamic rôle in memory formation, retrieval, and replay. The mechanisms give rise to the need for general inhibitory sculpting, and the simulation of the replay of episodic memories, well known in humans and recently observed in rats. Other consequences include explanations of such findings as the directional flows of neural waves in memory formation and retrieval, visual anomalies and memory deficits in schizophrenia, and the operation of GABA agonist drugs in suppressing episodic memories. We put forward the hypothesis that all neural logical operations and feature extractions are of the convolutional hierarchical type described here and in the earlier paper, and exemplified by the Hubel-Wiesel model of the visual cortex, but that in more general cases the precise geometric layering might be obscured and so far undetected.
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Affiliation(s)
- Stephen Selesnick
- Department of Mathematics and Statistics, University of Missouri - St. Louis, 63121, St. Louis, Missouri, USA.
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25
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Navarro-Lobato I, Masmudi-Martín M, López-Aranda MF, López-Téllez JF, Delgado G, Granados-Durán P, Gaona-Romero C, Carretero-Rey M, Posadas S, Quiros-Ortega ME, Khan ZU. Promotion of structural plasticity in area V2 of visual cortex prevents against object recognition memory deficits in aging and Alzheimer's disease rodents. Neural Regen Res 2024; 19:1835-1841. [PMID: 38103251 PMCID: PMC10960297 DOI: 10.4103/1673-5374.389301] [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: 07/04/2022] [Revised: 08/23/2023] [Accepted: 10/26/2023] [Indexed: 12/18/2023] Open
Abstract
JOURNAL/nrgr/04.03/01300535-202408000-00038/figure1/v/2023-12-16T180322Z/r/image-tiff Memory deficit, which is often associated with aging and many psychiatric, neurological, and neurodegenerative diseases, has been a challenging issue for treatment. Up till now, all potential drug candidates have failed to produce satisfactory effects. Therefore, in the search for a solution, we found that a treatment with the gene corresponding to the RGS14414 protein in visual area V2, a brain area connected with brain circuits of the ventral stream and the medial temporal lobe, which is crucial for object recognition memory (ORM), can induce enhancement of ORM. In this study, we demonstrated that the same treatment with RGS14414 in visual area V2, which is relatively unaffected in neurodegenerative diseases such as Alzheimer's disease, produced long-lasting enhancement of ORM in young animals and prevent ORM deficits in rodent models of aging and Alzheimer's disease. Furthermore, we found that the prevention of memory deficits was mediated through the upregulation of neuronal arborization and spine density, as well as an increase in brain-derived neurotrophic factor (BDNF). A knockdown of BDNF gene in RGS14414-treated aging rats and Alzheimer's disease model mice caused complete loss in the upregulation of neuronal structural plasticity and in the prevention of ORM deficits. These findings suggest that BDNF-mediated neuronal structural plasticity in area V2 is crucial in the prevention of memory deficits in RGS14414-treated rodent models of aging and Alzheimer's disease. Therefore, our findings of RGS14414 gene-mediated activation of neuronal circuits in visual area V2 have therapeutic relevance in the treatment of memory deficits.
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Affiliation(s)
- Irene Navarro-Lobato
- Laboratory of Neurobiology, Centro de Investigaciones Médico Sanitarias (CIMES), University of Malaga, Malaga, Spain
- Department of Medicine, Faculty of Medicine, University of Malaga, Malaga, Spain
| | - Mariam Masmudi-Martín
- Laboratory of Neurobiology, Centro de Investigaciones Médico Sanitarias (CIMES), University of Malaga, Malaga, Spain
- Department of Medicine, Faculty of Medicine, University of Malaga, Malaga, Spain
| | - Manuel F. López-Aranda
- Laboratory of Neurobiology, Centro de Investigaciones Médico Sanitarias (CIMES), University of Malaga, Malaga, Spain
- Department of Medicine, Faculty of Medicine, University of Malaga, Malaga, Spain
| | - Juan F. López-Téllez
- Laboratory of Neurobiology, Centro de Investigaciones Médico Sanitarias (CIMES), University of Malaga, Malaga, Spain
- Department of Medicine, Faculty of Medicine, University of Malaga, Malaga, Spain
| | - Gloria Delgado
- Laboratory of Neurobiology, Centro de Investigaciones Médico Sanitarias (CIMES), University of Malaga, Malaga, Spain
- Department of Medicine, Faculty of Medicine, University of Malaga, Malaga, Spain
| | - Pablo Granados-Durán
- Laboratory of Neurobiology, Centro de Investigaciones Médico Sanitarias (CIMES), University of Malaga, Malaga, Spain
- Department of Medicine, Faculty of Medicine, University of Malaga, Malaga, Spain
| | - Celia Gaona-Romero
- Laboratory of Neurobiology, Centro de Investigaciones Médico Sanitarias (CIMES), University of Malaga, Malaga, Spain
- Department of Medicine, Faculty of Medicine, University of Malaga, Malaga, Spain
| | - Marta Carretero-Rey
- Laboratory of Neurobiology, Centro de Investigaciones Médico Sanitarias (CIMES), University of Malaga, Malaga, Spain
- Department of Medicine, Faculty of Medicine, University of Malaga, Malaga, Spain
| | - Sinforiano Posadas
- Laboratory of Neurobiology, Centro de Investigaciones Médico Sanitarias (CIMES), University of Malaga, Malaga, Spain
- Department of Medicine, Faculty of Medicine, University of Malaga, Malaga, Spain
| | - María E. Quiros-Ortega
- Laboratory of Neurobiology, Centro de Investigaciones Médico Sanitarias (CIMES), University of Malaga, Malaga, Spain
- Department of Medicine, Faculty of Medicine, University of Malaga, Malaga, Spain
| | - Zafar U. Khan
- Laboratory of Neurobiology, Centro de Investigaciones Médico Sanitarias (CIMES), University of Malaga, Malaga, Spain
- Department of Medicine, Faculty of Medicine, University of Malaga, Malaga, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Institute of Health Carlos III, Madrid, Spain
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26
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Savuca A, Curpan AS, Hritcu LD, Buzenchi Proca TM, Balmus IM, Lungu PF, Jijie R, Nicoara MN, Ciobica AS, Solcan G, Solcan C. Do Microplastics Have Neurological Implications in Relation to Schizophrenia Zebrafish Models? A Brain Immunohistochemistry, Neurotoxicity Assessment, and Oxidative Stress Analysis. Int J Mol Sci 2024; 25:8331. [PMID: 39125900 PMCID: PMC11312823 DOI: 10.3390/ijms25158331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Revised: 07/26/2024] [Accepted: 07/28/2024] [Indexed: 08/12/2024] Open
Abstract
The effects of exposure to environmental pollutants on neurological processes are of increasing concern due to their potential to induce oxidative stress and neurotoxicity. Considering that many industries are currently using different types of plastics as raw materials, packaging, or distribution pipes, microplastics (MPs) have become one of the biggest threats to the environment and human health. These consequences have led to the need to raise the awareness regarding MPs negative neurological effects and implication in neuropsychiatric pathologies, such as schizophrenia. The study aims to use three zebrafish models of schizophrenia obtained by exposure to ketamine (Ket), methionine (Met), and their combination to investigate the effects of MP exposure on various nervous system structures and the possible interactions with oxidative stress. The results showed that MPs can interact with ketamine and methionine, increasing the severity and frequency of optic tectum lesions, while co-exposure (MP+Met+Ket) resulted in attenuated effects. Regarding oxidative status, we found that all exposure formulations led to oxidative stress, changes in antioxidant defense mechanisms, or compensatory responses to oxidative damage. Met exposure induced structural changes such as necrosis and edema, while paradoxically activating periventricular cell proliferation. Taken together, these findings highlight the complex interplay between environmental pollutants and neurotoxicants in modulating neurotoxicity.
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Affiliation(s)
- Alexandra Savuca
- Doctoral School of Geosciences, Faculty of Geography and Geology, “Alexandru Ioan Cuza” University of Iasi, Carol I Avenue, 20A, 700505 Iași, Romania;
- Doctoral School of Biology, Faculty of Biology, “Alexandru Ioan Cuza” University of Iasi, Carol I Avenue, 20A, 700505 Iași, Romania; (A.-S.C.); (P.F.L.)
| | - Alexandrina-Stefania Curpan
- Doctoral School of Biology, Faculty of Biology, “Alexandru Ioan Cuza” University of Iasi, Carol I Avenue, 20A, 700505 Iași, Romania; (A.-S.C.); (P.F.L.)
| | - Luminita Diana Hritcu
- Internal Medicine Clinic, University of Life Sciences “Ion Ionescu de la Brad”, Mihail Sadoveanu Street, No. 3, 700490 Iasi, Romania;
| | - Teodora Maria Buzenchi Proca
- Faculty of Veterinary Medicine, University of Life Sciences “Ion Ionescu de la Brad”, Mihail Sadoveanu Street, No. 3, 700490 Iasi, Romania; (T.M.B.P.); (G.S.); (C.S.)
| | - Ioana-Miruna Balmus
- Department of Exact Sciences and Natural Sciences, Institute of Interdisciplinary Research, “Alexandru Ioan Cuza” University of Iasi, Carol I Avenue, 20A, 700505 Iași, Romania;
| | - Petru Fabian Lungu
- Doctoral School of Biology, Faculty of Biology, “Alexandru Ioan Cuza” University of Iasi, Carol I Avenue, 20A, 700505 Iași, Romania; (A.-S.C.); (P.F.L.)
| | - Roxana Jijie
- Research Center on Advanced Materials and Technologies, Department of Exact and Natural Sciences, Institute of Interdisciplinary Research, “Alexandru Ioan Cuza” University of Iasi, Carol I Avenue, 20A, 700505 Iași, Romania;
| | - Mircea Nicusor Nicoara
- Doctoral School of Geosciences, Faculty of Geography and Geology, “Alexandru Ioan Cuza” University of Iasi, Carol I Avenue, 20A, 700505 Iași, Romania;
- Department of Biology, Faculty of Biology, “Alexandru Ioan Cuza” University of Iasi, Carol I Avenue, 20A, 700505 Iași, Romania;
| | - Alin Stelian Ciobica
- Department of Biology, Faculty of Biology, “Alexandru Ioan Cuza” University of Iasi, Carol I Avenue, 20A, 700505 Iași, Romania;
- Academy of Romanian Scientists, 3 Ilfov, 050044 Bucharest, Romania
- Center of Biomedical Research, Romanian Academy, Iasi Branch, Teodor Codrescu 2, 700481 Iasi, Romania
- Preclinical Department, Apollonia University, 700511 Iasi, Romania
| | - Gheorghe Solcan
- Faculty of Veterinary Medicine, University of Life Sciences “Ion Ionescu de la Brad”, Mihail Sadoveanu Street, No. 3, 700490 Iasi, Romania; (T.M.B.P.); (G.S.); (C.S.)
| | - Carmen Solcan
- Faculty of Veterinary Medicine, University of Life Sciences “Ion Ionescu de la Brad”, Mihail Sadoveanu Street, No. 3, 700490 Iasi, Romania; (T.M.B.P.); (G.S.); (C.S.)
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27
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Liang J, Chen L, Li Y, Chen Y, Yuan L, Qiu Y, Ma S, Fan F, Cheng Y. Unraveling the Prefrontal Cortex-Basolateral Amygdala Pathway's Role on Schizophrenia's Cognitive Impairments: A Multimodal Study in Patients and Mouse Models. Schizophr Bull 2024; 50:913-923. [PMID: 38811350 PMCID: PMC11283200 DOI: 10.1093/schbul/sbae063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
BACKGROUND AND HYPOTHESIS This study investigated the role of the medial prefrontal cortex (mPFC)-basolateral amygdala (BLA) pathway in schizophrenia (SCZ)-related cognitive impairments using various techniques. STUDY DESIGN This study utilized clinical scales, magnetic resonance imaging, single-cell RNA sequencing, and optogenetics to investigate the mPFC-BLA pathway in SCZ patients. In the mouse model, 6-week-old methylazoxymethanol acetate-induced mice demonstrated significant cognitive deficits, which were addressed through stereotaxic injections of an adeno-associated viral vector to unveil the neural connection between the mPFC and BLA. STUDY RESULTS Significant disparities in brain volume and neural activity, particularly in the dorsolateral prefrontal cortex (DLPFC) and BLA regions, were found between SCZ patients and healthy controls. Additionally, we observed correlations indicating that reduced volumes of the DLPFC and BLA were associated with lower cognitive function scores. Activation of the mPFC-BLA pathway notably improved cognitive performance in the SCZ model mice, with the targeting of excitatory or inhibitory neurons alone failing to replicate this effect. Single-cell transcriptomic profiling revealed gene expression differences in excitatory and inhibitory neurons in the BLA of SCZ model mice. Notably, genes differentially expressed in the BLA of these model mice were also found in the blood exosomes of SCZ patients. CONCLUSIONS Our research provides a comprehensive understanding of the role of the PFC-BLA pathway in SCZ, underscoring its significance in cognitive impairment and offering novel diagnostic and therapeutic avenues. Additionally, our research highlights the potential of blood exosomal mRNAs as noninvasive biomarkers for SCZ diagnosis, underscoring the clinical feasibility and utility of this method.
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Affiliation(s)
- Jiaquan Liang
- Key Laboratory of Ethnomedicine of Ministry of Education, Center on Translational Neuroscience, College of Life and Environmental Sciences, Minzu University of China, Beijing, China
- The Third People’s Hospital of Foshan, Guangdong, China
| | - Lei Chen
- Key Laboratory of Ethnomedicine of Ministry of Education, Center on Translational Neuroscience, College of Life and Environmental Sciences, Minzu University of China, Beijing, China
| | - Yongbiao Li
- Key Laboratory of Ethnomedicine of Ministry of Education, Center on Translational Neuroscience, College of Life and Environmental Sciences, Minzu University of China, Beijing, China
| | - Yuewen Chen
- Chinese Academy of Sciences Key Laboratory of Brain Connectome and Manipulation, Shenzhen Key Laboratory of Translational Research for Brain Diseases, The Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen–Hong Kong Institute of Brain Science—Shenzhen Fundamental Research Institutions, Shenzhen, China
- Guangdong Provincial Key Laboratory of Brain Science, Disease and Drug Development, HKUST Shenzhen Research Institute, Shenzhen, China
| | - Lin Yuan
- Guangdong Provincial Key Laboratory of Brain Science, Disease and Drug Development, HKUST Shenzhen Research Institute, Shenzhen, China
| | - Yue Qiu
- Guangdong Provincial Key Laboratory of Brain Science, Disease and Drug Development, HKUST Shenzhen Research Institute, Shenzhen, China
| | - Shuangshuang Ma
- Guangdong Provincial Key Laboratory of Brain Science, Disease and Drug Development, HKUST Shenzhen Research Institute, Shenzhen, China
| | - Fangcheng Fan
- Key Laboratory of Ethnomedicine of Ministry of Education, Center on Translational Neuroscience, College of Life and Environmental Sciences, Minzu University of China, Beijing, China
| | - Yong Cheng
- Key Laboratory of Ethnomedicine of Ministry of Education, Center on Translational Neuroscience, College of Life and Environmental Sciences, Minzu University of China, Beijing, China
- Institute of National Security, Minzu University of China, Beijing, China
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Hachtel H, Deuring G, Graf M, Vogel T. Impact of psychosocial stress on facial emotion recognition in schizophrenia and controls: an experimental study in a forensic sample. Front Psychiatry 2024; 15:1358291. [PMID: 39081531 PMCID: PMC11287427 DOI: 10.3389/fpsyt.2024.1358291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 06/03/2024] [Indexed: 08/02/2024] Open
Abstract
Introduction Psychotic disorders have been associated with dysregulated stress reactions and adaptation. Little is known about the neuroendocrine responses to psychosocial stress in justice-involved individuals with schizophrenia. Methods Using an experimental research design, the present study aims to examine differences in the subjective and neuroendocrine responses to psychosocial stress and its impact on facial emotion recognition (FER) and performance on an arithmetic task in chronically ill justice-involved individuals with schizophrenia (PAT) and a healthy control group. PAT undergoing treatment in forensic psychiatric inpatient wards (n = 17) and a healthy control group (n = 17) were assessed regarding sociodemographic and clinical characteristics. Additionally, salivary cortisol levels, measured before and after performing a psychosocial stress task [Montreal Imaging Stress Task (MIST)], and performance on an arithmetic problem-solving task and two FER tasks were recorded. Two participants dropped out, one from each group. Therefore, the final sample consisted of 32 individuals. Results Significant group differences in FER were recorded. There was a significant rise in subjective perception of momentary strain relating to the induction of psychosocial stress in both groups. Notably, the pre-stress level of subjective strain was higher in the PAT group than controls. Acute psychosocial stress induced an increase in FER performance in a sub-task related to naming emotions in individuals with schizophrenia spectrum disorder. Discussion The results underline the importance of psychosocial and therapeutic interventions aimed at strengthening stress resilience in individuals with schizophrenia spectrum disorders.
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Affiliation(s)
- Henning Hachtel
- Forensic Department, University Psychiatric Clinic Basel, Basel, Switzerland
- Medical Faculty, University of Basel, Basel, Switzerland
| | - Gunnar Deuring
- Forensic Department, University Psychiatric Clinic Basel, Basel, Switzerland
| | - Marc Graf
- Medical Faculty, University of Basel, Basel, Switzerland
| | - Tobias Vogel
- Medical Faculty, University of Basel, Basel, Switzerland
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Bhardwaj SK, Nath M, Wong TP, Srivastava LK. Loss of dysbindin-1 in excitatory neurons in mice impacts NMDAR-dependent behaviors, neuronal morphology and synaptic transmission in the ventral hippocampus. Sci Rep 2024; 14:15239. [PMID: 38956130 PMCID: PMC11219769 DOI: 10.1038/s41598-024-65566-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 06/20/2024] [Indexed: 07/04/2024] Open
Abstract
Dysbindin-1, a protein encoded by the schizophrenia susceptibility gene DTNBP1, is reduced in the hippocampus of schizophrenia patients. It is expressed in various cellular populations of the brain and implicated in dopaminergic and glutamatergic transmission. To investigate the impact of reduced dysbindin-1 in excitatory cells on hippocampal-associated behaviors and synaptic transmission, we developed a conditional knockout mouse model with deletion of dysbindin-1 gene in CaMKIIα expressing cells. We found that dysbindin-1 reduction in CaMKII expressing cells resulted in impaired spatial and social memories, and attenuation of the effects of glutamate N-methyl-d-asparate receptor (NMDAR) antagonist MK801 on locomotor activity and prepulse inhibition of startle (PPI). Dysbindin-1 deficiency in CaMKII expressing cells also resulted in reduced protein levels of NMDAR subunit GluN1 and GluN2B. These changes were associated with increased expression of immature dendritic spines in basiliar dendrites and abnormalities in excitatory synaptic transmission in the ventral hippocampus. These results highlight the functional relevance of dysbindin-1 in excitatory cells and its implication in schizophrenia-related pathologies.
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Affiliation(s)
- Sanjeev K Bhardwaj
- Douglas Hospital Research Centre, Douglas Mental Health University Institute, 6875 LaSalle Boulevard, Montreal, QC, H4H 1R3, Canada.
| | - Moushumi Nath
- Douglas Hospital Research Centre, Douglas Mental Health University Institute, 6875 LaSalle Boulevard, Montreal, QC, H4H 1R3, Canada
- Department of Psychiatry, McGill University, Montreal, QC, Canada
| | - Tak Pan Wong
- Douglas Hospital Research Centre, Douglas Mental Health University Institute, 6875 LaSalle Boulevard, Montreal, QC, H4H 1R3, Canada
- Department of Psychiatry, McGill University, Montreal, QC, Canada
| | - Lalit K Srivastava
- Douglas Hospital Research Centre, Douglas Mental Health University Institute, 6875 LaSalle Boulevard, Montreal, QC, H4H 1R3, Canada.
- Department of Psychiatry, McGill University, Montreal, QC, Canada.
- Integrated Programme in Neuroscience, McGill University, Montreal, QC, Canada.
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Jo YT, Lee MJ, Lee JS, Joo YH. Revisiting Rorschach test and Minnesota Multiphasic Personality Inventory-II patterns in Kraepelinian vs. DSM-wise Schizophrenia: How They Differ and What It Means for Diagnosis. Sci Prog 2024; 107:368504241266366. [PMID: 39043381 PMCID: PMC11271119 DOI: 10.1177/00368504241266366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
OBJECTIVE This retrospective chart review study aimed to investigate the differences in the Rorschach test and Minnesota Multiphasic Personality Inventory (MMPI)-II profiles among patients with Kraepelinian schizophrenia, those with DSM-wise schizophrenia, and controls. Kraepelinian schizophrenia is characterised by a chronic, deteriorative disease course and a predominance of negative symptoms. METHODS Patients with Kraepelinian schizophrenia were selected based on medical record reviews. We then compared their Rorschach test and MMPI-II results with those of the DSM-wise schizophrenia group and the control group. RESULTS The Rorschach test revealed a significant increase in DV2 score and a decrease in D score in patients with Kraepelinian schizophrenia compared to those with DSM-wise schizophrenia. In the MMPI-II profiles, patients with Kraepelinian schizophrenia exhibited an elevated L relative to those with DSM-wise schizophrenia. CONCLUSION Our results suggested the value of revisiting psychological tests in clinically delineated subgroups, such as Kraepelinian schizophrenia. Although patients fall under the same diagnostic category of schizophrenia, considering different phenotypes is important when interpreting psychological test outcomes. Additionally, our study indicated that both schizophrenia groups did not show as many abnormalities as expected compared to controls. This highlights the potential value of revisiting established profiles of certain psychological tests and calls for further research on other psychological tests.
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Affiliation(s)
- Young Tak Jo
- Department of Psychiatry, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Myung Joo Lee
- Department of Psychiatry, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Ji Soo Lee
- Department of Psychiatry, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Yeon Ho Joo
- Department of Psychiatry, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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31
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Xu X, Zhu G, Li B, Lin P, Li X, Wang Z. Automated diagnosis of schizophrenia based on spatial-temporal residual graph convolutional network. Biomed Eng Online 2024; 23:55. [PMID: 38886737 PMCID: PMC11181588 DOI: 10.1186/s12938-024-01250-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 05/31/2024] [Indexed: 06/20/2024] Open
Abstract
BACKGROUND Schizophrenia (SZ), a psychiatric disorder for which there is no precise diagnosis, has had a serious impact on the quality of human life and social activities for many years. Therefore, an advanced approach for accurate treatment is required. NEW METHOD In this study, we provide a classification approach for SZ patients based on a spatial-temporal residual graph convolutional neural network (STRGCN). The model primarily collects spatial frequency features and temporal frequency features by spatial graph convolution and single-channel temporal convolution, respectively, and blends them both for the classification learning, in contrast to traditional approaches that only evaluate temporal frequency information in EEG and disregard spatial frequency features across brain regions. RESULTS We conducted extensive experiments on the publicly available dataset Zenodo and our own collected dataset. The classification accuracy of the two datasets on our proposed method reached 96.32% and 85.44%, respectively. In the experiment, the dataset using delta has the best classification performance in the sub-bands. COMPARISON WITH EXISTING METHODS Other methods mainly rely on deep learning models dominated by convolutional neural networks and long and short time memory networks, lacking exploration of the functional connections between channels. In contrast, the present method can treat the EEG signal as a graph and integrate and analyze the temporal frequency and spatial frequency features in the EEG signal. CONCLUSION We provide an approach to not only performs better than other classic machine learning and deep learning algorithms on the dataset we used in diagnosing schizophrenia, but also understand the effects of schizophrenia on brain network features.
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Affiliation(s)
- Xinyi Xu
- College of Medical Instruments, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Geng Zhu
- College of Medical Instruments, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Bin Li
- Shanghai Yangpu Mental Health Center, Shanghai, China
| | - Ping Lin
- College of Medical Instruments, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Xiaoou Li
- College of Medical Instruments, Shanghai University of Medicine and Health Sciences, Shanghai, China.
- Shanghai Yangpu Mental Health Center, Shanghai, China.
| | - Zhen Wang
- College of Medical Instruments, Shanghai University of Medicine and Health Sciences, Shanghai, China.
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32
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Jeon JM, Ma J, Kwak P, Dang B, Buleje I, Ancoli-Israel S, Malhotra A, Lee EE. Developing a novel mobile application for cognitive behavioral therapy for insomnia for people with schizophrenia: integration of wearable and environmental sleep sensors. Sleep Breath 2024; 28:1491-1498. [PMID: 38177830 PMCID: PMC11196198 DOI: 10.1007/s11325-023-02980-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 11/30/2023] [Accepted: 12/18/2023] [Indexed: 01/06/2024]
Abstract
BACKGROUND People with serious mental illnesses (SMIs) have three-fold higher rates of comorbid insomnia than the general population, which has downstream effects on cognitive, mental, and physical health. Cognitive Behavioral Therapy for Insomnia (CBT-i) is a safe and effective first-line treatment for insomnia, though the therapy's effectiveness relies on completing nightly sleep diaries which can be challenging for some people with SMI and comorbid cognitive deficits. Supportive technologies such as mobile applications and sleep sensors may aid with completing sleep diaries. However, commercially available CBT-i apps are not designed for individuals with cognitive deficits. To aid with this challenge, we have developed an integrated mobile application, named "Sleep Catcher," that will automatically incorporate data from a wearable fitness tracker and a bed sensor to track nightly sleep duration, overnight awakenings, bed-times, and wake-times to generate nightly sleep diaries for CBT-i. METHODS The application development process will be described-writing algorithms to generating useful data, creating a clinician web portal to oversee patients and the mobile application, and integrating sleep data from device platforms and user input. RESULTS The mobile and web applications were developed using Flutter, IBM Code Engine, and IBM Cloudant database. The mobile application was developed with a user-centered approach and incremental changes informed by a series of beta tests. Special user-interface features were considered to address the challenges of developing a simple and effective mobile application targeting people with SMI. CONCLUSION There is strong potential for synergy between engineering and mental health expertise to develop technologies for specific clinical populations. Digital health technologies allow for the development of multi-disciplinary solutions to existing health disparities in vulnerable populations, particularly in people with SMI.
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Affiliation(s)
- Jae Min Jeon
- Department of Psychiatry, University of California San Diego, 9500 Gilman Dr #0664, La Jolla, CA, 92093-0664, USA
| | - Junhua Ma
- Department of Psychiatry, University of California San Diego, 9500 Gilman Dr #0664, La Jolla, CA, 92093-0664, USA
| | - Paulyn Kwak
- Department of Psychiatry, University of California San Diego, 9500 Gilman Dr #0664, La Jolla, CA, 92093-0664, USA
| | - Bing Dang
- Digital Health, IBM T.J. Watson Research Center, 1101 Kitchawan Rd, Yorktown Heights, NY, 10598, USA
| | - Italo Buleje
- Digital Health, IBM T.J. Watson Research Center, 1101 Kitchawan Rd, Yorktown Heights, NY, 10598, USA
| | - Sonia Ancoli-Israel
- Department of Psychiatry, University of California San Diego, 9500 Gilman Dr #0664, La Jolla, CA, 92093-0664, USA
| | - Atul Malhotra
- Division of Pulmonary, Critical Care and Sleep Medicine, University of California San Diego, 4520 Executive Dr Suite P2, San Diego, CA, 92121, USA
| | - Ellen E Lee
- Department of Psychiatry, University of California San Diego, 9500 Gilman Dr #0664, La Jolla, CA, 92093-0664, USA.
- Desert-Pacific Mental Illness Research Education and Clinical Center, Veterans Affairs San Diego Healthcare System, 3350 La Jolla Village Dr, San Diego, CA, 92161, USA.
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Bogie BJ, Noël C, Gu F, Nadeau S, Shvetz C, Khan H, Rivard MC, Bouchard S, Lepage M, Guimond S. Using virtual reality to improve verbal episodic memory in schizophrenia: A proof-of-concept trial. Schizophr Res Cogn 2024; 36:100305. [PMID: 38486790 PMCID: PMC10937232 DOI: 10.1016/j.scog.2024.100305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 02/13/2024] [Accepted: 02/26/2024] [Indexed: 03/17/2024]
Abstract
Background Schizophrenia is associated with impairments in verbal episodic memory. Strategy for Semantic Association Memory (SESAME) training represents a promising cognitive remediation program to improve verbal episodic memory. Virtual reality (VR) may be a novel tool to increase the ecological validity and transfer of learned skills of traditional cognitive remediation programs. The present proof-of-concept study aimed to assess the feasibility, acceptability, and preliminary efficacy of a VR-based cognitive remediation module inspired by SESAME principles to improve the use of verbal episodic memory strategies in schizophrenia. Methods Thirty individuals with schizophrenia/schizoaffective disorder completed this study. Participants were randomized to either a VR-based verbal episodic memory training condition inspired by SESAME principles (intervention group) or an active control condition (control group). In the training condition, a coach taught semantic encoding strategies (active rehearsal and semantic clustering) to help participants remember restaurant orders in VR. In the active control condition, participants completed visuospatial puzzles in VR. Attrition rate, participant experience ratings, and cybersickness questionnaires were used to assess feasibility and acceptability. Trial 1 of the Hopkins Verbal Learning Test - Revised was administered pre- and post-intervention to assess preliminary efficacy. Results Feasibility was demonstrated by a low attrition rate (5.88 %), and acceptability was demonstrated by limited cybersickness and high levels of enjoyment. Although the increase in the number of semantic clusters used following the module did not reach conventional levels of statistical significance in the intervention group, it demonstrated a notable trend with a medium effect size (t = 1.48, p = 0.15, d = 0.54), in contrast to the control group where it remained stable (t = 0.36, p = 0.72, d = 0.13). These findings were similar for the semantic clustering ratio in the intervention (t = 1.61, p = 0.12, d = 0.59) and control (t = 0.36, p = 0.72, d = 0.13) groups. There was no significant change in the number of recalled words in either group following VR immersion. Discussion This VR intervention was feasible, acceptable, and may be useful for improving the use of semantic encoding strategies. These findings support the use of more ecological approaches for the treatment of cognitive impairments in schizophrenia, such as VR-based cognitive remediation.
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Affiliation(s)
- Bryce J.M. Bogie
- MD/PhD Program, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- The Royal's Institute of Mental Health Research, Royal Ottawa Mental Health Centre, Ottawa, ON, Canada
| | - Chelsea Noël
- Department of Psychology, Lakehead University, Thunder Bay, ON, Canada
| | - Feng Gu
- The Royal's Institute of Mental Health Research, Royal Ottawa Mental Health Centre, Ottawa, ON, Canada
| | - Sébastien Nadeau
- Department of Psychoeducation and Psychology, Université du Québec en Outaouais, Gatineau, QC, Canada
| | - Cecelia Shvetz
- The Royal's Institute of Mental Health Research, Royal Ottawa Mental Health Centre, Ottawa, ON, Canada
- Department of Neuroscience, Carleton University, Ottawa, ON, Canada
| | - Hassan Khan
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, ON, Canada
| | - Marie-Christine Rivard
- Department of Psychoeducation and Psychology, Université du Québec en Outaouais, Gatineau, QC, Canada
| | - Stéphane Bouchard
- Department of Psychoeducation and Psychology, Université du Québec en Outaouais, Gatineau, QC, Canada
- Centre de recherche, Centre Intégré de Santé et de Services Sociaux de l'Outaouais, Gatineau, QC, Canada
- School of Psychology, University of Ottawa, Ottawa, ON, Canada
| | - Martin Lepage
- Douglas Research Centre, Montréal, QC, Canada
- Department of Psychiatry, McGill University, Montréal, QC, Canada
| | - Synthia Guimond
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- The Royal's Institute of Mental Health Research, Royal Ottawa Mental Health Centre, Ottawa, ON, Canada
- Department of Neuroscience, Carleton University, Ottawa, ON, Canada
- Department of Psychoeducation and Psychology, Université du Québec en Outaouais, Gatineau, QC, Canada
- Department of Psychiatry, University of Ottawa, Ottawa, ON, Canada
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Lin P, Zhu G, Xu X, Wang Z, Li X, Li B. Brain network analysis of working memory in schizophrenia based on multi graph attention network. Brain Res 2024; 1831:148816. [PMID: 38387716 DOI: 10.1016/j.brainres.2024.148816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 01/25/2024] [Accepted: 02/19/2024] [Indexed: 02/24/2024]
Abstract
The cognitive impairment in schizophrenia (SZ) is characterized by significant deficits in working memory task. In order to explore the brain changes of SZ during a working memory task, we performed time-domain and time-frequency analysis of event related potentials (ERP) of SZ during a 0-back task. The P3 wave amplitude was found to be significantly lower in SZ patients than in healthy controls (HC) (p < 0.05). The power in the θ and α bands was significantly enhanced in the SZ group 200 ms after stimulation, while the θ band was significantly enhanced and the β band was weakened in the HC group. Furthermore, phase lag index (PLI) based brain functional connectivity maps showed differences in the connections between parietal and frontotemporal lobes between SZ and HC (p < 0.05). Due to the natural similarity between brain networks and graph data, and the fact that graph attention network can aggregate the features of adjacent nodes, it has more advantages in learning the features of brain regions. We propose a multi graph attention network model combined with adaptive initial residual (AIR) for SZ classification, which achieves an accuracy of 90.90 % and 78.57 % on an open dataset (Zenodo) and our 0-back dataset, respectively. Overall, the proposed methodology offers promising potential for understanding the brain functional connections of schizophrenia.
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Affiliation(s)
- Ping Lin
- College of Medical Instruments, Shanghai University of Medicine & Health Sciences, Shanghai 201318, China; College of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Geng Zhu
- College of Medical Instruments, Shanghai University of Medicine & Health Sciences, Shanghai 201318, China
| | - Xinyi Xu
- College of Medical Instruments, Shanghai University of Medicine & Health Sciences, Shanghai 201318, China; College of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Zhen Wang
- College of Medical Instruments, Shanghai University of Medicine & Health Sciences, Shanghai 201318, China
| | - Xiaoou Li
- College of Medical Instruments, Shanghai University of Medicine & Health Sciences, Shanghai 201318, China; College of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China; Shanghai Yangpu Mental Health Center, Shanghai 200093, China.
| | - Bin Li
- Shanghai Yangpu Mental Health Center, Shanghai 200093, China.
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Liu H, Li J, Takahashi S, Toyoda A, Inoue R, Koyanagi M, Hayashi SM, Xu M, Yamamoto Y, Nagaoka K. Alpha-glycosyl isoquercitrin alleviates subchronic social defeat stress-induced depression symptoms by modulating the microbiota-gut-brain axis in mice. Life Sci 2024; 344:122561. [PMID: 38490298 DOI: 10.1016/j.lfs.2024.122561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 02/21/2024] [Accepted: 03/09/2024] [Indexed: 03/17/2024]
Abstract
AIMS Increasing evidence suggests a link between gut microbial dysbiosis and the pathogenesis of depression. Alpha-glycosyl isoquercitrin (AGIQ), consisting of isoquercitrin and its glycosylated quercetin, has beneficial effects on the gut microbiome and brain function. Here, we detected the potential antidepressant impact of a four-week administration of AGIQ and its underlying mechanisms using a mouse model of depression. MAIN METHODS Male C57BL/6 mice were orally administered AGIQ (0.05 % or 0.5 % in drinking water) for 28 days; subchronic social defeat stress was performed in the last 10 days. Behavior tests were conducted to assess anxiety and depressive-like behaviors. Additionally, evaluations encompassed 5-hydroxytryptamine (5-HT) levels, the gut microbiota composition, lipopolysaccharide (LPS) concentrations, short-chain fatty acids levels, and intestinal barrier integrity changes. KEY FINDINGS AGIQ significantly alleviated depression-like behaviors and increased hippocampal 5-HT levels. Further, AGIQ mitigated stress-induced gut microbial abnormalities and reduced the levels of LPS in the serum, which affected the relative gene expression levels of 5-HT biosynthesis enzymes in vitro. Furthermore, AGIQ reversed the reduced butyrate levels in cecal contents and improved the impaired intestinal barrier by increasing the expression of colonic zonula occluden-1 (ZO-1) and occludin, thereby decreasing LPS leakage. SIGNIFICANCE Our results suggest that AGIQ could improve stress-induced depression by regulating the gut microbiome, which inhibits LPS production and maintains the gut barrier. This is the first report on the potential effect of AGIQ on depression via the gut microbiota-brain axis, shedding new light on treatment options.
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Affiliation(s)
- Hong Liu
- Laboratory of Veterinary Physiology, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Junjie Li
- Laboratory of Veterinary Physiology, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Shogo Takahashi
- Laboratory of Veterinary Physiology, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Atsushi Toyoda
- Laboratory of Feed Science, College of Agriculture, Ibaraki University, Ibaraki, Japan
| | - Ryo Inoue
- Laboratory of Animal Science, Department of Applied Biological Sciences, Setsunan University, Osaka, Japan
| | | | - Shim-Mo Hayashi
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Tokyo, Japan; Division of Food Additives, National Institute of Health Sciences, Kawasaki, Kanagawa, Japan
| | - Meiyu Xu
- College of Biological Science and Technology, Beijing Forestry University, Beijing, China
| | - Yuki Yamamoto
- Laboratory of Veterinary Physiology, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Kentaro Nagaoka
- Laboratory of Veterinary Physiology, Tokyo University of Agriculture and Technology, Tokyo, Japan.
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Choi SH, Bae HJ, Kim SY, Mony TJ, Kim HJ, Cho YE, Choi YY, An JY, Cho SY, Kim DH, Park SJ. Particulate matter (PM 10) exacerbates on MK-801-induced schizophrenia-like behaviors through the inhibition of ERK-CREB-BDNF signaling pathway. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 276:116294. [PMID: 38574646 DOI: 10.1016/j.ecoenv.2024.116294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 03/02/2024] [Accepted: 04/01/2024] [Indexed: 04/06/2024]
Abstract
Particulate matter (PM), released into the air by a variety of natural and human activities, is a key indicator of air pollution. Although PM is known as the extensive health hazard to affect a variety of illness, few studies have specifically investigated the effects of PM10 exposure on schizophrenic development. In the present study, we aimed to investigate the impact of PM10 on MK-801, N-methyl-D-aspartate (NMDA) receptor antagonist, induced schizophrenia-like behaviors in C57BL/6 mouse. Preadolescent mice were exposed PM10 to 3.2 mg/m3 concentration for 4 h/day for 2 weeks through a compartmentalized whole-body inhalation chamber. After PM10 exposure, we conducted behavioral tests during adolescence and adulthood to investigate longitudinal development of schizophrenia. We found that PM10 exacerbated schizophrenia-like behavior, such as psychomotor agitation, social interaction deficits and cognitive deficits at adulthood in MK-801-induced schizophrenia animal model. Furthermore, the reduced expression levels of brain-derived neurotrophic factor (BDNF) and the phosphorylation of BDNF related signaling molecules, extracellular signal-regulated kinase (ERK) and cAMP response element-binding protein (CREB), were exacerbated by PM10 exposure in the adult hippocampus of MK-801-treated mice. Thus, our present study demonstrates that exposure to PM10 in preadolescence exacerbates the cognitive impairment in animal model of schizophrenia, which are considered to be facilitated by the decreased level of BDNF through reduced ERK-CREB expression.
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Affiliation(s)
- Seung-Hyuk Choi
- Department of Food Biotechnology and Environmental Science, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Ho Jung Bae
- Agriculture and Life Science Research Institute, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - So-Yeon Kim
- Department of Food Biotechnology and Environmental Science, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Tamanna Jahan Mony
- Agriculture and Life Science Research Institute, Kangwon National University, Chuncheon 24341, Republic of Korea; Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO, USA
| | - Hyun-Jeong Kim
- Department of Food Biotechnology and Environmental Science, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Ye Eun Cho
- Department of Food Biotechnology and Environmental Science, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Yu-Yeong Choi
- Department of Food Biotechnology and Environmental Science, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Ju-Yeon An
- Department of Food Biotechnology and Environmental Science, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - So-Young Cho
- Department of Food Biotechnology and Environmental Science, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Dong Hyun Kim
- Department of Pharmacology and Department of Advanced Translational Medicine, School of Medicine, Konkuk University, Seoul 05029, Republic of Korea
| | - Se Jin Park
- Department of Food Biotechnology and Environmental Science, Kangwon National University, Chuncheon 24341, Republic of Korea; School of Natural Resources and Environmental Sciences, Kangwon National University, Chuncheon 24341, Republic of Korea; Agriculture and Life Science Research Institute, Kangwon National University, Chuncheon 24341, Republic of Korea.
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Ruggeri A, Nerland S, Mørch-Johnsen L, Jørgensen KN, Barth C, Wortinger LA, Andreou D, Andreassen OA, Agartz I. Hypothalamic Subunit Volumes in Schizophrenia and Bipolar Spectrum Disorders. Schizophr Bull 2024; 50:533-544. [PMID: 38206841 PMCID: PMC11059784 DOI: 10.1093/schbul/sbad176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
BACKGROUND The hypothalamus is central to many hormonal and autonomous nervous system pathways. Emerging evidence indicates that these pathways may be disrupted in schizophrenia and bipolar disorder. Yet, few studies have examined the volumes of hypothalamic subunits in these patient groups. We compared hypothalamic subunit volumes in individuals with psychotic disorders to healthy controls. STUDY DESIGN We included 344 patients with schizophrenia spectrum disorders (SCZ), 340 patients with bipolar disorders (BPD), and 684 age- and-sex-matched healthy controls (CTR). Total hypothalamus and five hypothalamic subunit volumes were extracted from T1-weighted magnetic resonance imaging (MRI) using an automated Bayesian segmentation method. Regression models, corrected for age, age2, sex, and segmentation-based intracranial volume (sbTIV), were used to examine diagnostic group differences, interactions with sex, and associations with clinical symptoms, antipsychotic medication, antidepressants and mood stabilizers. STUDY RESULTS SCZ had larger volumes in the left inferior tubular subunit and smaller right anterior-inferior, right anterior-superior, and right posterior hypothalamic subunits compared to CTR. BPD did not differ significantly from CTR for any hypothalamic subunit volume, however, there was a significant sex-by-diagnosis interaction. Analyses stratified by sex showed smaller right hypothalamus and right posterior subunit volumes in male patients, but not female patients, relative to same-sex controls. There was a significant association between BPD currently taking antipsychotic medication and the left inferior tubular subunits volumes. CONCLUSIONS Our results show regional-specific alterations in hypothalamus subunit volumes in individuals with SCZ, with relevance to HPA-axis dysregulation, circadian rhythm disruption, and cognition impairment.
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Affiliation(s)
- Aurora Ruggeri
- Department of Psychiatric Research, Diakonhjemmet Hospital, Oslo, Norway
- Norwegian Centre for Mental Disorders Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Stener Nerland
- Department of Psychiatric Research, Diakonhjemmet Hospital, Oslo, Norway
- Norwegian Centre for Mental Disorders Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Lynn Mørch-Johnsen
- Norwegian Centre for Mental Disorders Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Psychiatry, Østfold Hospital, Grålum, Norway
- Department of Clinical Research, Østfold Hospital, Grålum, Norway
| | - Kjetil Nordbø Jørgensen
- Norwegian Centre for Mental Disorders Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Psychiatry, Telemark Hospital, Skien, Norway
| | - Claudia Barth
- Department of Psychiatric Research, Diakonhjemmet Hospital, Oslo, Norway
- Norwegian Centre for Mental Disorders Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Laura Anne Wortinger
- Department of Psychiatric Research, Diakonhjemmet Hospital, Oslo, Norway
- Norwegian Centre for Mental Disorders Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Dimitrios Andreou
- Department of Psychiatric Research, Diakonhjemmet Hospital, Oslo, Norway
- Norwegian Centre for Mental Disorders Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet and Stockholm Health Care Services, Stockholm Region, Stockholm, Sweden
| | - Ole A Andreassen
- Norwegian Centre for Mental Disorders Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Norwegian Centre for Mental Disorders Research, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Ingrid Agartz
- Department of Psychiatric Research, Diakonhjemmet Hospital, Oslo, Norway
- Norwegian Centre for Mental Disorders Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet and Stockholm Health Care Services, Stockholm Region, Stockholm, Sweden
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Roeske MJ, McHugo M, Rogers B, Armstrong K, Avery S, Donahue M, Heckers S. Modulation of hippocampal activity in schizophrenia with levetiracetam: a randomized, double-blind, cross-over, placebo-controlled trial. Neuropsychopharmacology 2024; 49:681-689. [PMID: 37833590 PMCID: PMC10876634 DOI: 10.1038/s41386-023-01730-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/22/2023] [Accepted: 08/28/2023] [Indexed: 10/15/2023]
Abstract
Hippocampal hyperactivity is a novel pharmacological target in the treatment of schizophrenia. We hypothesized that levetiracetam (LEV), a drug binding to the synaptic vesicle glycoprotein 2 A, normalizes hippocampal activity in persons with schizophrenia and can be measured using neuroimaging methods. Thirty healthy control participants and 30 patients with schizophrenia (28 treated with antipsychotic drugs), were randomly assigned to a double-blind, cross-over trial to receive a single administration of 500 mg oral LEV or placebo during two study visits. At each visit, we assessed hippocampal function using resting state fractional amplitude of low frequency fluctuations (fALFF), cerebral blood flow (CBF) with arterial spin labeling, and hippocampal blood-oxygen-level-dependent (BOLD) signal during a scene processing task. After placebo treatment, we found significant elevations in hippocampal fALFF in patients with schizophrenia, consistent with hippocampal hyperactivity. Additionally, hippocampal fALFF in patients with schizophrenia after LEV treatment did not significantly differ from healthy control participants receiving placebo, suggesting that LEV may normalize hippocampal hyperactivity. In contrast to our fALFF findings, we did not detect significant group differences or an effect of LEV treatment on hippocampal CBF. In the context of no significant group difference in BOLD signal, we found that hippocampal recruitment during scene processing is enhanced by LEV more significantly in schizophrenia. We conclude that pharmacological modulation of hippocampal hyperactivity in schizophrenia can be studied with some neuroimaging methods, but not others. Additional studies in different cohorts, employing alternate neuroimaging methods and study designs, are needed to establish levetiracetam as a treatment for schizophrenia.
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Affiliation(s)
- Maxwell J Roeske
- Department of Psychiatry and Behavioral Sciences, Vanderbilt University Medical Center, Nashville, TN, USA.
| | - Maureen McHugo
- Department of Psychiatry and Behavioral Sciences, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Baxter Rogers
- Vanderbilt University Institute of Imaging Sciences, Nashville, TN, USA
| | - Kristan Armstrong
- Department of Psychiatry and Behavioral Sciences, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Suzanne Avery
- Department of Psychiatry and Behavioral Sciences, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Manus Donahue
- Department of Neurology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Stephan Heckers
- Department of Psychiatry and Behavioral Sciences, Vanderbilt University Medical Center, Nashville, TN, USA
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Li J, Zhong BL, Zhou D, Fu Y, Huang X, Chen L, Liu H, Zheng J, Tang E, Li Y, Guan C, Shen M, Chen H. The dynamic process of hyperfocusing and hyperfiltering in schizophrenia. NATURE MENTAL HEALTH 2024; 2:367-378. [DOI: 10.1038/s44220-024-00211-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 01/24/2024] [Indexed: 08/01/2024]
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Kumar A, Nader MA, Deep G. Emergence of Extracellular Vesicles as "Liquid Biopsy" for Neurological Disorders: Boom or Bust. Pharmacol Rev 2024; 76:199-227. [PMID: 38351075 PMCID: PMC10877757 DOI: 10.1124/pharmrev.122.000788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 11/11/2023] [Accepted: 11/27/2023] [Indexed: 02/16/2024] Open
Abstract
Extracellular vesicles (EVs) have emerged as an attractive liquid biopsy approach in the diagnosis and prognosis of multiple diseases and disorders. The feasibility of enriching specific subpopulations of EVs from biofluids based on their unique surface markers has opened novel opportunities to gain molecular insight from various tissues and organs, including the brain. Over the past decade, EVs in bodily fluids have been extensively studied for biomarkers associated with various neurological disorders, such as Alzheimer's disease, Parkinson's disease, schizophrenia, bipolar disorder, major depressive disorders, substance use disorders, human immunodeficiency virus-associated neurocognitive disorder, and cancer/treatment-induced neurodegeneration. These studies have focused on the isolation and cargo characterization of either total EVs or brain cells, such as neuron-, astrocyte-, microglia-, oligodendrocyte-, pericyte-, and endothelial-derived EVs from biofluids to achieve early diagnosis and molecular characterization and to predict the treatment and intervention outcomes. The findings of these studies have demonstrated that EVs could serve as a repetitive and less invasive source of valuable molecular information for these neurological disorders, supplementing existing costly neuroimaging techniques and relatively invasive measures, like lumbar puncture. However, the initial excitement surrounding blood-based biomarkers for brain-related diseases has been tempered by challenges, such as lack of central nervous system specificity in EV markers, lengthy protocols, and the absence of standardized procedures for biological sample collection, EV isolation, and characterization. Nevertheless, with rapid advancements in the EV field, supported by improved isolation methods and sensitive assays for cargo characterization, brain cell-derived EVs continue to offer unparallel opportunities with significant translational implications for various neurological disorders. SIGNIFICANCE STATEMENT: Extracellular vesicles present a less invasive liquid biopsy approach in the diagnosis and prognosis of various neurological disorders. Characterizing these vesicles in biofluids holds the potential to yield valuable molecular information, thereby significantly impacting the development of novel biomarkers for various neurological disorders. This paper has reviewed the methodology employed to isolate extracellular vesicles derived from various brain cells in biofluids, their utility in enhancing the molecular understanding of neurodegeneration, and the potential challenges in this research field.
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Affiliation(s)
- Ashish Kumar
- Departments of Cancer Biology (A.K., G.D.), Physiology and Pharmacology (M.A.N.), Radiology (M.A.N.), and Center for Addiction Research (M.A.N., G.D.), Wake Forest University School of Medicine, Winston-Salem, North Carolina; Atrium Health Wake Forest Baptist Comprehensive Cancer Center, Winston-Salem, North Carolina (G.D.); and Sticht Center for Healthy Aging and Alzheimer's Prevention, Wake Forest School of Medicine, Winston-Salem, North Carolina (G.D.)
| | - Michael A Nader
- Departments of Cancer Biology (A.K., G.D.), Physiology and Pharmacology (M.A.N.), Radiology (M.A.N.), and Center for Addiction Research (M.A.N., G.D.), Wake Forest University School of Medicine, Winston-Salem, North Carolina; Atrium Health Wake Forest Baptist Comprehensive Cancer Center, Winston-Salem, North Carolina (G.D.); and Sticht Center for Healthy Aging and Alzheimer's Prevention, Wake Forest School of Medicine, Winston-Salem, North Carolina (G.D.)
| | - Gagan Deep
- Departments of Cancer Biology (A.K., G.D.), Physiology and Pharmacology (M.A.N.), Radiology (M.A.N.), and Center for Addiction Research (M.A.N., G.D.), Wake Forest University School of Medicine, Winston-Salem, North Carolina; Atrium Health Wake Forest Baptist Comprehensive Cancer Center, Winston-Salem, North Carolina (G.D.); and Sticht Center for Healthy Aging and Alzheimer's Prevention, Wake Forest School of Medicine, Winston-Salem, North Carolina (G.D.)
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Lamsma J, Raine A, Kia SM, Cahn W, Arold D, Banaj N, Barone A, Brosch K, Brouwer R, Brunetti A, Calhoun VD, Chew QH, Choi S, Chung YC, Ciccarelli M, Cobia D, Cocozza S, Dannlowski U, Dazzan P, de Bartolomeis A, Di Forti M, Dumais A, Edmond JT, Ehrlich S, Evermann U, Flinkenflügel K, Georgiadis F, Glahn DC, Goltermann J, Green MJ, Grotegerd D, Guerrero-Pedraza A, Ha M, Hong EL, Hulshoff Pol H, Iasevoli F, Kaiser S, Kaleda V, Karuk A, Kim M, Kircher T, Kirschner M, Kochunov P, Kwon JS, Lebedeva I, Lencer R, Marques TR, Meinert S, Murray R, Nenadić I, Nguyen D, Pearlson G, Piras F, Pomarol-Clotet E, Pontillo G, Potvin S, Preda A, Quidé Y, Rodrigue A, Rootes-Murdy K, Salvador R, Skoch A, Sim K, Spalletta G, Spaniel F, Stein F, Thomas-Odenthal F, Tikàsz A, Tomecek D, Tomyshev A, Tranfa M, Tsogt U, Turner JA, van Erp TGM, van Haren NEM, van Os J, Vecchio D, Wang L, Wroblewski A, Nickl-Jockschat T. Structural brain abnormalities and aggressive behaviour in schizophrenia: Mega-analysis of data from 2095 patients and 2861 healthy controls via the ENIGMA consortium. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.02.04.24302268. [PMID: 38370846 PMCID: PMC10871467 DOI: 10.1101/2024.02.04.24302268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Background Schizophrenia is associated with an increased risk of aggressive behaviour, which may partly be explained by illness-related changes in brain structure. However, previous studies have been limited by group-level analyses, small and selective samples of inpatients and long time lags between exposure and outcome. Methods This cross-sectional study pooled data from 20 sites participating in the international ENIGMA-Schizophrenia Working Group. Sites acquired T1-weighted and diffusion-weighted magnetic resonance imaging scans in a total of 2095 patients with schizophrenia and 2861 healthy controls. Measures of grey matter volume and white matter microstructural integrity were extracted from the scans using harmonised protocols. For each measure, normative modelling was used to calculate how much patients deviated (in z-scores) from healthy controls at the individual level. Ordinal regression models were used to estimate the associations of these deviations with concurrent aggressive behaviour (as odds ratios [ORs] with 99% confidence intervals [CIs]). Mediation analyses were performed for positive symptoms (i.e., delusions, hallucinations and disorganised thinking), impulse control and illness insight. Aggression and potential mediators were assessed with the Positive and Negative Syndrome Scale, Scale for the Assessment of Positive Symptoms or Brief Psychiatric Rating Scale. Results Aggressive behaviour was significantly associated with reductions in total cortical volume (OR [99% CI] = 0.88 [0.78, 0.98], p = .003) and global white matter integrity (OR [99% CI] = 0.72 [0.59, 0.88], p = 3.50 × 10-5) and additional reductions in dorsolateral prefrontal cortex volume (OR [99% CI] = 0.85 [0.74, 0.97], p =.002), inferior parietal lobule volume (OR [99% CI] = 0.76 [0.66, 0.87], p = 2.20 × 10-7) and internal capsule integrity (OR [99% CI] = 0.76 [0.63, 0.92], p = 2.90 × 10-4). Except for inferior parietal lobule volume, these associations were largely mediated by increased severity of positive symptoms and reduced impulse control. Conclusions This study provides evidence that the co-occurrence of positive symptoms, poor impulse control and aggressive behaviour in schizophrenia has a neurobiological basis, which may inform the development of therapeutic interventions.
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Affiliation(s)
- Jelle Lamsma
- Department of Criminology, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
- Department of Psychiatry, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Adrian Raine
- Department of Criminology, University of Pennsylvania, Philadelphia, USA
- Department of Psychology, University of Pennsylvania, Philadelphia, USA
- Department of Psychiatry, University of Pennsylvania, Philadelphia, USA
| | - Seyed M. Kia
- Department of Psychiatry, University Medical Center Utrecht, Utrecht, the Netherlands
- Department of Cognitive Science and Artificial Intelligence, Tilburg University, Tilburg, the Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, the Netherlands
| | - Wiepke Cahn
- Department of Psychiatry, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Dominic Arold
- Division of Psychological and Social Medicine and Developmental Neurosciences, TU Dresden, Germany
| | - Nerisa Banaj
- Laboratory of Neuropsychiatry, Santa Lucia Foundation IRCCS, Rome, Italy
| | - Annarita Barone
- Department of Neurosciences, Reproductive Sciences and Dentistry, University of Naples Federico II, Naples, Italy
| | - Katharina Brosch
- Department of Psychiatry and Psychotherapy, Philipps-University Marburg, Marburg, Germany
- Institute of Behavioral Science, Feinstein Institutes for Medical Research, Manhasset, USA
| | - Rachel Brouwer
- Department of Psychiatry, University Medical Center Utrecht, Utrecht, the Netherlands
- Department of Complex Trait Genetics, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Arturo Brunetti
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Naples, Italy
| | - Vince D. Calhoun
- Tri-institutional Center for Translational Research in Neuroimaging and Data Science, Georgia State University, Georgia Institute of Technology and Emory University, Atlanta, USA
| | - Qian H. Chew
- Department of Research, Institute of Mental Health, Singapore
| | - Sunah Choi
- Department of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, South Korea
| | - Young-Chul Chung
- Department of Psychiatry, Jeonbuk National University, Jeonju, South Korea
- Department of Psychiatry, Jeonbuk National University Hospital, Jeonju, South Korea
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, South Korea
| | - Mariateresa Ciccarelli
- Department of Neurosciences, Reproductive Sciences and Dentistry, University of Naples Federico II, Naples, Italy
| | - Derin Cobia
- Department of Psychology and Neuroscience Center, Brigham Young University, Provo, USA
| | - Sirio Cocozza
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Naples, Italy
| | - Udo Dannlowski
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
| | - Paola Dazzan
- Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
| | - Andrea de Bartolomeis
- Department of Neurosciences, Reproductive Sciences and Dentistry, University of Naples Federico II, Naples, Italy
| | - Marta Di Forti
- Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
| | - Alexandre Dumais
- Department of Psychiatry and Addictology, University of Montreal, Montreal, Canada
- Institut Philippe-Pinel, Montreal, Canada
| | - Jesse T. Edmond
- Tri-institutional Center for Translational Research in Neuroimaging and Data Science, Georgia State University, Georgia Institute of Technology and Emory University, Atlanta, USA
- Department of Psychology, Georgia State University, Atlanta, USA
| | - Stefan Ehrlich
- Division of Psychological and Social Medicine and Developmental Neurosciences, TU Dresden, Germany
- Department of Child and Adolescent Psychiatry and Psychotherapy, TU Dresden, Germany
| | - Ulrika Evermann
- Department of Psychiatry and Psychotherapy, Philipps-University Marburg, Marburg, Germany
| | - Kira Flinkenflügel
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
| | - Foivos Georgiadis
- Department of Psychiatry, Psychotherapy and Psychosomatics, University of Zürich, Switzerland
| | - David C. Glahn
- Department of Psychiatry, Harvard Medical School, Harvard, USA
- Olin Neuropsychiatry Research Center, Institute of Living, Hartford, USA
| | - Janik Goltermann
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
| | - Melissa J. Green
- Neuroscience Research Australia, Randwick, Australia
- School of Clinical Medicine, University of New South Wales, Sydney, Australia
| | - Dominik Grotegerd
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
| | | | - Minji Ha
- Department of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, South Korea
| | - Elliot L. Hong
- Department of Psychiatry and Behavioral Science, UTHealth Houston, Houston, USA
| | - Hilleke Hulshoff Pol
- Department of Psychiatry, University Medical Center Utrecht, Utrecht, the Netherlands
- Department of Psychology, Utrecht University, Utrecht, the Netherlands
| | - Felice Iasevoli
- Department of Neurosciences, Reproductive Sciences and Dentistry, University of Naples Federico II, Naples, Italy
| | - Stefan Kaiser
- Department of Psychiatry, University Hospitals of Geneva, Geneva, Switzerland
| | - Vasily Kaleda
- Department of Youth Psychiatry, Mental Health Research Center, Moscow, Russia
| | - Andriana Karuk
- FIDMAG Germanes Hospitalaries Research Foundation, Barcelona, Spain
| | - Minah Kim
- Department of Neuropsychiatry, Seoul National University Hospital, Seoul, South Korea
- Department of Psychiatry, Seoul National University College of Medicine, Seoul, South Korea
| | - Tilo Kircher
- Department of Psychiatry and Psychotherapy, Philipps-University Marburg, Marburg, Germany
| | - Matthias Kirschner
- Department of Psychiatry, Psychotherapy and Psychosomatics, University of Zürich, Switzerland
- Department of Psychiatry, University Hospitals of Geneva, Geneva, Switzerland
- Montreal Neurological Institute-Hospital, McGill University, Montreal, Canada
| | - Peter Kochunov
- Department of Psychiatry and Behavioral Science, UTHealth Houston, Houston, USA
| | - Jun Soo Kwon
- Department of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, South Korea
- Department of Neuropsychiatry, Seoul National University Hospital, Seoul, South Korea
- Department of Psychiatry, Seoul National University College of Medicine, Seoul, South Korea
| | - Irina Lebedeva
- Laboratory of Neuroimaging and Multimodal Analysis, Mental Health Research Center, Moscow, Russia
| | - Rebekka Lencer
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
- Department of Psychiatry and Psychotherapy, University of Lübeck, Germany
| | - Tiago R. Marques
- Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
- MRC London Institute of Medical Sciences, Imperial College London, London, UK
- Institute of Clinical Sciences, Imperial College London, London, UK
| | - Susanne Meinert
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
- Institute for Translational Neuroscience, University of Münster, Münster, Germany
| | - Robin Murray
- Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
| | - Igor Nenadić
- Department of Psychiatry and Psychotherapy, Philipps-University Marburg, Marburg, Germany
| | - Dana Nguyen
- Department of Psychiatry and Human Behavior, University of California Irvine, Irvine, USA
| | - Godfrey Pearlson
- Olin Neuropsychiatry Research Center, Institute of Living, Hartford, USA
| | - Fabrizio Piras
- Laboratory of Neuropsychiatry, Santa Lucia Foundation IRCCS, Rome, Italy
| | - Edith Pomarol-Clotet
- FIDMAG Germanes Hospitalaries Research Foundation, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Salud Mental, Carlos III Health Institute, Barcelona, Spain
| | - Giuseppe Pontillo
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Naples, Italy
- Department of Electrical Engineering and Information Technology, University of Naples Federico II, Naples, Italy
| | - Stéphane Potvin
- Department of Psychiatry and Addictology, University of Montreal, Montreal, Canada
- Centre de Recherche de l’Institut Universitaire en Santé Mentale de Montréal, Montreal, Canada
| | - Adrian Preda
- Department of Psychiatry and Human Behavior, University of California Irvine, Irvine, USA
| | - Yann Quidé
- Neuroscience Research Australia, Randwick, Australia
- School of Psychology, University of New South Wales, Sydney, Australia
| | - Amanda Rodrigue
- Department of Psychiatry, Harvard Medical School, Harvard, USA
| | - Kelly Rootes-Murdy
- Tri-institutional Center for Translational Research in Neuroimaging and Data Science, Georgia State University, Georgia Institute of Technology and Emory University, Atlanta, USA
- Department of Psychology, Georgia State University, Atlanta, USA
| | - Raymond Salvador
- FIDMAG Germanes Hospitalaries Research Foundation, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Salud Mental, Carlos III Health Institute, Barcelona, Spain
| | - Antonin Skoch
- National Institute of Mental Health, Klecany, Czech Republic
| | - Kang Sim
- Department of Research, Institute of Mental Health, Singapore
| | | | - Filip Spaniel
- National Institute of Mental Health, Klecany, Czech Republic
| | - Frederike Stein
- Department of Psychiatry and Psychotherapy, Philipps-University Marburg, Marburg, Germany
| | | | - Andràs Tikàsz
- Department of Psychiatry and Addictology, University of Montreal, Montreal, Canada
- Centre de Recherche de l’Institut Universitaire en Santé Mentale de Montréal, Montreal, Canada
| | - David Tomecek
- National Institute of Mental Health, Klecany, Czech Republic
- Institute of Computer Science, Czech Academy of Sciences, Prague, Czech Republic
- Faculty of Electrical Engineering, Czech Technical University in Prague, Prague, Czech Republic
| | - Alexander Tomyshev
- Laboratory of Neuroimaging and Multimodal Analysis, Mental Health Research Center, Moscow, Russia
| | - Mario Tranfa
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Naples, Italy
| | - Uyanga Tsogt
- Department of Psychiatry, Jeonbuk National University, Jeonju, South Korea
| | - Jessica A. Turner
- Psychiatry and Behavioral Health, Ohio State University Wexner Medical Center, Columbus, USA
| | - Theo G. M. van Erp
- Department of Psychiatry and Human Behavior, University of California Irvine, Irvine, USA
- Center for the Neurobiology of Learning and Memory, University of California Irvine, Irvine, USA
| | - Neeltje E. M. van Haren
- Department of Psychiatry, University Medical Center Utrecht, Utrecht, the Netherlands
- Department of Child and Adolescent Psychiatry and Psychology, Erasmus MC Sophia, Rotterdam, the Netherlands
| | - Jim van Os
- Department of Psychiatry, University Medical Center Utrecht, Utrecht, the Netherlands
- Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
- Department of Psychiatry and Neuropsychology, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Daniela Vecchio
- Laboratory of Neuropsychiatry, Santa Lucia Foundation IRCCS, Rome, Italy
| | - Lei Wang
- Psychiatry and Behavioral Health, Ohio State University Wexner Medical Center, Columbus, USA
- Department of Psychiatry and Behavioral Sciences, Northwestern University, Chicago, USA
| | - Adrian Wroblewski
- Department of Psychiatry and Psychotherapy, Philipps-University Marburg, Marburg, Germany
| | - Thomas Nickl-Jockschat
- Department of Psychiatry, University of Iowa, Iowa City, USA
- Iowa Neuroscience Institute, University of Iowa, Iowa City, USA
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Du N, Meng X, Li J, Shi L, Zhang X. Decline in Working Memory in Stable Schizophrenia May Be Related to Attentional Impairment: Mediating Effects of Negative Symptoms, a Cross-Sectional Study. Neuropsychiatr Dis Treat 2024; 20:149-158. [PMID: 38288268 PMCID: PMC10822768 DOI: 10.2147/ndt.s447965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 01/14/2024] [Indexed: 01/31/2024] Open
Abstract
Background Schizophrenia (SCZ) is a severe mental illness, Cognitive deficits and negative symptoms (NS) are prevalent in individuals with SCZ and are crucial indicators of functional recovery. It is well known that cognitive symptoms and negative symptoms are interrelated and that negative symptoms can affect the ability to take cognitive tests. However, the specific relationship between attention, working memory (WM), and NS in stable SCZ remains unclear. This study aims to explore these associations and provide valuable insights for the subsequent treatment of SCZ. Methods We conducted a comprehensive assessment of 145 patients with stable SCZ using the Chinese Brief Neurocognitive Suite of Tests (C-BCT) and the Positive and Negative Symptom Scale (PANSS). Results Patients with abnormal cognition exhibited significantly higher PANSS total scores, cognitive symptom scores, and NS than those with normal cognition (P<0.05). Pearson's correlation analysis revealed significant positive correlations between digital breadth(DB) and continuous operation(CO) (r=0.389, P<0.001), as well as a significant negative correlation between DB and NS (r=-0.291, P<0.001). Moreover, CO showed a negative correlation with NS (r=-0.173, P<0.05). However, no significant correlations were found between the digital breadth-anterograde score and CO or NS (r=0.148, P>0.05; r=-0.068, P>0.05). Notably, NS were identified as a mediator in the relationship between attention and WM (effect size=0.024). Conclusion Our findings highlight significant associations between WM, attention, and NS in individuals with stable SCZ. Moreover, attention not only directly impacts WM but also indirectly influences it through NS. Addressing cognitive deficits and NS in the treatment of SCZ may lead to improved overall outcomes for affected individuals.
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Affiliation(s)
- Nan Du
- Affiliated Psychological Hospital of Anhui Medical University, Hefei Fourth People’s Hospital, Hefei, 230022, People’s Republic of China
- Anhui Clinical Center for Mental and Psychological Diseases, Hefei Fourth People’s Hospital, Hefei, 230022, People’s Republic of China
| | - Xiaojing Meng
- Affiliated Psychological Hospital of Anhui Medical University, Hefei Fourth People’s Hospital, Hefei, 230022, People’s Republic of China
- Anhui Clinical Center for Mental and Psychological Diseases, Hefei Fourth People’s Hospital, Hefei, 230022, People’s Republic of China
| | - Jingwei Li
- Anhui Clinical Center for Mental and Psychological Diseases, Hefei Fourth People’s Hospital, Hefei, 230022, People’s Republic of China
| | - Li Shi
- Anhui Clinical Center for Mental and Psychological Diseases, Hefei Fourth People’s Hospital, Hefei, 230022, People’s Republic of China
| | - Xulai Zhang
- Affiliated Psychological Hospital of Anhui Medical University, Hefei Fourth People’s Hospital, Hefei, 230022, People’s Republic of China
- Anhui Clinical Center for Mental and Psychological Diseases, Hefei Fourth People’s Hospital, Hefei, 230022, People’s Republic of China
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Martínez-Peula O, Morentin B, Callado LF, Meana JJ, Rivero G, Ramos-Miguel A. Permissive epigenetic regulatory mechanisms at the histone level are enhanced in postmortem dorsolateral prefrontal cortex of individuals with schizophrenia. J Psychiatry Neurosci 2024; 49:E35-E44. [PMID: 38302137 PMCID: PMC10843339 DOI: 10.1503/jpn.230054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 09/28/2023] [Accepted: 11/03/2023] [Indexed: 02/03/2024] Open
Abstract
BACKGROUND Susceptibility to schizophrenia is determined by interactions between genes and environment, possibly via epigenetic mechanisms. Schizophrenia has been associated with a restrictive epigenome, and histone deacetylase (HDAC) inhibitors have been postulated as coadjuvant agents to potentiate the efficacy of current antipsychotic drugs. We aimed to evaluate global histone posttranslational modifications (HPTMs) and HDAC expression and activity in the dorsolateral prefrontal cortex (DLPFC) of individuals with schizophrenia. METHODS We used postmortem DLPFC samples of individuals with schizophrenia and controls matched for sex, age, and postmortem interval. Schizophrenia samples were classified into antipsychotic-treated or antipsychotic-free subgroups according to blood toxicology. Expression of HPTMs and HDAC was quantified by Western blot. HDAC activity was measured with a fluorometric assay. RESULTS H3K9ac, H3K27ac, and H3K4me3 were globally enhanced in the DLPFC of individuals with schizophrenia (+24%-42%, p < 0.05). HDAC activity (-17%, p < 0.01) and HDAC4 protein expression (-20%, p < 0.05) were downregulated in individuals with schizophrenia. Analyses of antipsychotic-free and antipsychotic-treated subgroups revealed enhanced H3K4me3 and H3K27ac (+24%-49%, p < 0.05) and reduced HDAC activity in the antipsychotic-treated, but not in the antipsychotic-free subgroup. LIMITATIONS Special care was taken to control the effect of confounding factors: age, sex, postmortem interval, and storage time. However, replication studies in bigger cohorts might strengthen the association between permissive HPTMs and schizophrenia. CONCLUSION We found global HPTM alterations consistent with an aberrantly permissive epigenome in schizophrenia. Further studies to elucidate the significance of enhanced permissive HPTMs in schizophrenia and its association with the mechanism of action of antipsychotic drugs are encouraged.
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Affiliation(s)
- Oihane Martínez-Peula
- From the Department of Pharmacology, University of the Basque Country, UPV/EHU, Leioa, Spain (Martínez-Peula, Callado, Meana, Rivero, Ramos-Miguel); Section of Forensic Pathology, Basque Institute of Legal Medicine, Bilbao, Spain (Morentin); the Biobizkaia Health Research Institute, Barakaldo, Spain ( Morentin, Callado, Meana, Rivero, Ramos-Miguel); and the Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, ISCIII, Spain (Callado, Meana, Rivero, Ramos-Miguel)
| | - Benito Morentin
- From the Department of Pharmacology, University of the Basque Country, UPV/EHU, Leioa, Spain (Martínez-Peula, Callado, Meana, Rivero, Ramos-Miguel); Section of Forensic Pathology, Basque Institute of Legal Medicine, Bilbao, Spain (Morentin); the Biobizkaia Health Research Institute, Barakaldo, Spain ( Morentin, Callado, Meana, Rivero, Ramos-Miguel); and the Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, ISCIII, Spain (Callado, Meana, Rivero, Ramos-Miguel)
| | - Luis F Callado
- From the Department of Pharmacology, University of the Basque Country, UPV/EHU, Leioa, Spain (Martínez-Peula, Callado, Meana, Rivero, Ramos-Miguel); Section of Forensic Pathology, Basque Institute of Legal Medicine, Bilbao, Spain (Morentin); the Biobizkaia Health Research Institute, Barakaldo, Spain ( Morentin, Callado, Meana, Rivero, Ramos-Miguel); and the Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, ISCIII, Spain (Callado, Meana, Rivero, Ramos-Miguel)
| | - J Javier Meana
- From the Department of Pharmacology, University of the Basque Country, UPV/EHU, Leioa, Spain (Martínez-Peula, Callado, Meana, Rivero, Ramos-Miguel); Section of Forensic Pathology, Basque Institute of Legal Medicine, Bilbao, Spain (Morentin); the Biobizkaia Health Research Institute, Barakaldo, Spain ( Morentin, Callado, Meana, Rivero, Ramos-Miguel); and the Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, ISCIII, Spain (Callado, Meana, Rivero, Ramos-Miguel)
| | - Guadalupe Rivero
- From the Department of Pharmacology, University of the Basque Country, UPV/EHU, Leioa, Spain (Martínez-Peula, Callado, Meana, Rivero, Ramos-Miguel); Section of Forensic Pathology, Basque Institute of Legal Medicine, Bilbao, Spain (Morentin); the Biobizkaia Health Research Institute, Barakaldo, Spain ( Morentin, Callado, Meana, Rivero, Ramos-Miguel); and the Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, ISCIII, Spain (Callado, Meana, Rivero, Ramos-Miguel)
| | - Alfredo Ramos-Miguel
- From the Department of Pharmacology, University of the Basque Country, UPV/EHU, Leioa, Spain (Martínez-Peula, Callado, Meana, Rivero, Ramos-Miguel); Section of Forensic Pathology, Basque Institute of Legal Medicine, Bilbao, Spain (Morentin); the Biobizkaia Health Research Institute, Barakaldo, Spain ( Morentin, Callado, Meana, Rivero, Ramos-Miguel); and the Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, ISCIII, Spain (Callado, Meana, Rivero, Ramos-Miguel)
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Hu R, Gao L, Chen P, Wei X, Wu X, Xu H. Macroscale neurovascular coupling and functional integration in end-stage renal disease patients with cognitive impairment: A multimodal MRI study. J Neurosci Res 2024; 102:e25277. [PMID: 38284834 DOI: 10.1002/jnr.25277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 10/06/2023] [Accepted: 11/06/2023] [Indexed: 01/30/2024]
Abstract
End-stage renal disease (ESRD) is associated with vascular and neuronal dysfunction, causing neurovascular coupling (NVC) dysfunction, but how NVC dysfunction acts on the mechanism of cognitive impairment in ESRD patients from local to remote is still poorly understood. We recruited 48 ESRD patients and 35 demographically matched healthy controls to scan resting-state functional MRI and arterial spin labeling, then investigated the four types of NVC between amplitude of low-frequency fluctuation (ALFF), fractional ALFF, regional homogeneity, degree centrality, and cerebral blood perfusion (CBF), and associated functional networks. Our results indicated that ESRD patients showed NVC dysfunction in global gray matter and multiple brain regions due to the mismatch between CBF and neural activity, and associated disrupted functional connectivity (FC) within sensorimotor network (SMN), visual network (VN), default mode network (DMN), salience network (SN), and disrupted FC between them with limbic network (LN), while increased FC between SMN and DMN. Anemia may affect the NVC of middle occipital gyrus and precuneus, and increased pulse pressure may result in disrupted FC with SMN. The NVC dysfunction of the right precuneus, middle frontal gyrus, and parahippocampal gyrus and the FC between the right angular gyrus and the right anterior cingulate gyrus may reflect cognitive impairment in ESRD patients. Our study confirmed that ESRD patients may exist NVC dysfunction and disrupted functional integration in SMN, VN, DMN, SN and LN, serving as one of the mechanisms of cognitive impairment. Anemia and increased pulse pressure may be related risk factors.
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Affiliation(s)
- Runyue Hu
- Department of Radiology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Lei Gao
- Department of Radiology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Peina Chen
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan, China
- Department of Nephrology, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-sen University, Shantou, China
| | - Xiaobao Wei
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan, China
- Department of Nephrology, Lianyungang No 1 People's Hospital, Lianyungang, China
| | - Xiaoyan Wu
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Haibo Xu
- Department of Radiology, Zhongnan Hospital of Wuhan University, Wuhan, China
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Clementz BA, Assaf M, Sweeney JA, Gershon ES, Keedy SK, Hill SK, Ivleva EI, Tamminga CA, McDowell JE, Keshavan MS, Gibbons RD, Carpenter WT, Pearlson GD. Categorical and Dimensional Approaches for Psychiatric Classification and Treatment Targeting: Considerations from Psychosis Biotypes. ADVANCES IN NEUROBIOLOGY 2024; 40:685-723. [PMID: 39562461 PMCID: PMC12054367 DOI: 10.1007/978-3-031-69491-2_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2024]
Abstract
Categorical diagnosis, a pillar of the medical model, has not worked well in psychiatry where most diagnoses are still exclusively symptom based. Uncertainty continues about whether categories or dimensions work better for the assessment and treatment of idiopathic psychoses. The Bipolar Schizophrenia Network for Intermediate Phenotypes (B-SNIP) examined multiple cognitive and electrophysiological biomarkers across a large transdiagnostic psychosis data set. None of the variables supported neurobiological distinctiveness for conventional clinical psychosis diagnoses but showed a continuum of severity. Using numerical taxonomy of these data, B-SNIP identified three biological subtypes (Biotypes) agnostic to DSM diagnoses. Biotype-1 is characterized by reduced physiological response to salient stimuli, while Biotype-2 showed accentuated intrinsic (background or ongoing) neural activity and the worst inhibition. Biotype-3 cases are like healthy persons on many laboratory measures. These Biotypes differed in imaging and other electrophysiological measures not included in subgroup creation, illustrating external validation. The Biotypes solution also replicated in an independent sample of psychosis cases. Biotypes are differentiable by clinical characteristics, leading to a feasible algorithm for Biotype estimates. Identifying Biotypes may aid treatment selection and outcome prediction. As an example, preliminary cross-sectional B-SNIP data suggest that Biotype-1 cases may have physiological features that predict a more favorable response to clozapine. While psychosis Biotypes reveal physiological heterogeneity across cases with similar clinical characteristics, data also suggest a dimensional vulnerability for serious psychopathology that cuts across diagnostic boundaries. Both categorical and dimensional diagnostic approaches should be considered within idiopathic psychosis for optimum diagnosis, care, and research.
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Affiliation(s)
- Brett A Clementz
- Departments of Psychology and Neuroscience, BioImaging Research Center, University of Georgia, Athens, GA, USA.
| | - Michal Assaf
- Department of Psychiatry, Olin Neuropsychiatric Research Center, Hartford, CT, USA
| | - John A Sweeney
- Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati, Cincinnati, OH, USA
| | - Elliot S Gershon
- Departments of Psychiatry and Human Genetics, University of Chicago, Chicago, IL, USA
| | - Sarah K Keedy
- Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, IL, USA
| | - S Kristian Hill
- Department of Psychology, Rosalind Franklin University of Medicine and Science, North Chicago, IL, USA
| | - Elena I Ivleva
- Department of Psychiatry, UT Southwestern Medical School, Dallas, TX, USA
| | - Carol A Tamminga
- Department of Psychiatry, UT Southwestern Medical School, Dallas, TX, USA
| | - Jennifer E McDowell
- Departments of Psychology and Neuroscience, Owen Institute for Behavioral Research, University of Georgia, Athens, GA, USA
| | - Matcheri S Keshavan
- Department of Psychiatry, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Robert D Gibbons
- Departments of Medicine and Public Health Sciences, University of Chicago, Chicago, IL, USA
| | - William T Carpenter
- Department of Psychiatry, Maryland Psychiatric Research Center, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Godfrey D Pearlson
- Departments of Psychiatry and Neuroscience, Olin Neuropsychiatric Research Center, Institute of Living, Hartford Hospital, and Yale University School of Medicine, Hartford, CT, USA
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Stoyanov D, Paunova R, Dichev J, Kandilarova S, Khorev V, Kurkin S. Functional magnetic resonance imaging study of group independent components underpinning item responses to paranoid-depressive scale. World J Clin Cases 2023; 11:8458-8474. [PMID: 38188204 PMCID: PMC10768520 DOI: 10.12998/wjcc.v11.i36.8458] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/10/2023] [Accepted: 12/05/2023] [Indexed: 12/22/2023] Open
Abstract
BACKGROUND Our study expand upon a large body of evidence in the field of neuropsychiatric imaging with cognitive, affective and behavioral tasks, adapted for the functional magnetic resonance imaging (MRI) (fMRI) experimental environment. There is sufficient evidence that common networks underpin activations in task-based fMRI across different mental disorders. AIM To investigate whether there exist specific neural circuits which underpin differential item responses to depressive, paranoid and neutral items (DN) in patients respectively with schizophrenia (SCZ) and major depressive disorder (MDD). METHODS 60 patients were recruited with SCZ and MDD. All patients have been scanned on 3T magnetic resonance tomography platform with functional MRI paradigm, comprised of block design, including blocks with items from diagnostic paranoid (DP), depression specific (DS) and DN from general interest scale. We performed a two-sample t-test between the two groups-SCZ patients and depressive patients. Our purpose was to observe different brain networks which were activated during a specific condition of the task, respectively DS, DP, DN. RESULTS Several significant results are demonstrated in the comparison between SCZ and depressive groups while performing this task. We identified one component that is task-related and independent of condition (shared between all three conditions), composed by regions within the temporal (right superior and middle temporal gyri), frontal (left middle and inferior frontal gyri) and limbic/salience system (right anterior insula). Another component is related to both diagnostic specific conditions (DS and DP) e.g. It is shared between DEP and SCZ, and includes frontal motor/language and parietal areas. One specific component is modulated preferentially by to the DP condition, and is related mainly to prefrontal regions, whereas other two components are significantly modulated with the DS condition and include clusters within the default mode network such as posterior cingulate and precuneus, several occipital areas, including lingual and fusiform gyrus, as well as parahippocampal gyrus. Finally, component 12 appeared to be unique for the neutral condition. In addition, there have been determined circuits across components, which are either common, or distinct in the preferential processing of the sub-scales of the task. CONCLUSION This study has delivers further evidence in support of the model of trans-disciplinary cross-validation in psychiatry.
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Affiliation(s)
- Drozdstoy Stoyanov
- Department of Psychiatry, Medical University Plovdiv, Plovdiv 4000, Bulgaria
| | - Rositsa Paunova
- Research Institute, Medical University, Plovdiv 4002, Bulgaria
| | - Julian Dichev
- Faculty of Medicine, Medical University, Plovdiv 4002, Bulgaria
| | - Sevdalina Kandilarova
- Department of Psychiatry and Medical Psychology, Medical University, Plovdiv 4002, Bulgaria
| | - Vladimir Khorev
- Baltic Center for Artificial Intelligence and Neurotechnology, Immanuel Kant Baltic Federal University, Kaliningrad 236041, Russia
| | - Semen Kurkin
- Baltic Center for Artificial Intelligence and Neurotechnology, Immanuel Kant Baltic Federal University, Kaliningrad 236041, Russia
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Panov G, Dyulgerova S, Panova P. Cognition in Patients with Schizophrenia: Interplay between Working Memory, Disorganized Symptoms, Dissociation, and the Onset and Duration of Psychosis, as Well as Resistance to Treatment. Biomedicines 2023; 11:3114. [PMID: 38137335 PMCID: PMC10740456 DOI: 10.3390/biomedicines11123114] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 11/10/2023] [Accepted: 11/17/2023] [Indexed: 12/24/2023] Open
Abstract
Schizophrenia is traditionally associated with the presence of psychotic symptoms. In addition to these, cognitive symptoms precede them and are present during the entire course of the schizophrenia process. The present study aims to establish the relationship between working memory (short-term memory and attention), the features of the clinical picture, and the course of the schizophrenic process, gender distribution and resistance to treatment. METHODS In total, 105 patients with schizophrenia were observed. Of these, 66 were women and 39 men. Clinical status was assessed using the Positive and Negative Syndrome Scale (PANSS), Brief Psychiatric Rating Scale (BPRS), Dimensional Obsessive-Compulsive Symptom Scale (DOCS), scale for dissociative experiences (DES) and Hamilton Depression Rating Scale (HAM-D)-cognitive functions using the Luria 10-word test with fixation assessment, reproduction and attention analysis. The clinical evaluation of resistance to the treatment showed that 45 patients were resistant to the ongoing medical treatment and the remaining 60 had an effect from the therapy. RESULTS Our study showed that, in most patients, we found disorders of working memory and attention. In 69.82% of the patients, we found problems with fixation; in 38.1%, problems with reproduction; and in 62.86%, attention disorders. Conducting a regression analysis showed that memory and attention disorders were mainly related to the highly disorganized symptoms scale, the duration of the schizophrenic process and the dissociation scale. It was found that there was a weaker but significant association between the age of onset of schizophrenia and negative symptoms. In the patients with resistant schizophrenia, much greater violations of the studied parameters working memory and attention were found compared to the patients with an effect from the treatment. CONCLUSION Impairments in working memory and attention are severely affected in the majority of patients with schizophrenia. Their involvement is most significant in patients with resistance to therapy. Factors associated with the highest degree of memory and attention impairment were disorganized symptoms, duration of schizophrenia, dissociative symptoms and, to a lesser extent, onset of illness. This analysis gives us the right to consider that the early and systematic analysis of cognition is a reliable marker for tracking both clinical dynamics and the effect of treatment.
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Affiliation(s)
- Georgi Panov
- Psychiatric Clinic, University Hospital for Active Treatment “Prof. Dr. Stoyan Kirkovich”, Trakia University, 6000 Stara Zagora, Bulgaria
- Medical Faculty, University “Prof. Dr. Asen Zlatarov”, 8000 Burgas, Bulgaria
| | - Silvana Dyulgerova
- Psychiatric Clinic, University Hospital for Active Treatment “Prof. Dr. Stoyan Kirkovich”, Trakia University, 6000 Stara Zagora, Bulgaria
| | - Presyana Panova
- Medical Faculty, Trakia University, 6000 Stara Zagora, Bulgaria;
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Zhuo C, Tian H, Zhu J, Fang T, Ping J, Wang L, Sun Y, Cheng L, Chen C, Chen G. Low-dose lithium adjunct to quetiapine improves cognitive task performance in mice with MK801-induced long-term cognitive impairment: Evidence from a pilot study. J Affect Disord 2023; 340:42-52. [PMID: 37506773 DOI: 10.1016/j.jad.2023.07.104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 07/04/2023] [Accepted: 07/23/2023] [Indexed: 07/30/2023]
Abstract
BACKGROUND Low-dose lithium (LD-Li) has been shown to rescue cognitive impairment in mouse models of short-term mild cognitive impairment, dementia, and schizophrenia. However, few studies have characterized the effects of LD-Li, alone or in conjunction with anti-psychotics, in the mouse model of MK801-induced long term cognitive impairment. METHODS The present study used in vivo Ca2+ imaging and a battery of cognitive function assessments to investigate the long-term effects of LD-Li on cognition in mice exposed to repeated injections of MK801. Prefrontal Ca2+ activity was visualized to estimate alterations in neural activity in the model mice. Pre-pulse inhibition (PPI), novel object recognition (NOR), Morris water maze (MWM), and fear conditioning (FC) tasks were used to characterize cognitive performance; open field activity (OFA) testing was used to observe psychotic symptoms. Two treatment strategies were tested: LD-Li [250 mg/d human equivalent dose (HED)] adjunct to quetiapine (QTP; 600 mg/d HED); and QTP-monotherapy (mt; 600 mg/d HED). RESULTS Compared to the QTP-mt group, the LD-Li + QTP group showed greatly improved cognitive performance on all measures between experimental days 29 and 85. QTP-mt improved behavioral measures compared to untreated controls, but the effects persisted only from day 29 to day 43. These data suggest that LD-Li + QTP is superior to QTP-mt for improving long-term cognitive impairments in the MK801 mouse model. LIMITATIONS There is no medical consensus regarding lithium use in patients with schizophrenia. CONCLUSION More pre-clinical and clinical studies are needed to further investigate effective treatment strategies for patients with long-term cognitive impairments, such as chronic schizophrenia.
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Affiliation(s)
- Chuanjun Zhuo
- Key Laboratory of Sensory Information Processing Abnormalities in Schizophrenia (SIPAC_Lab), Tianjin Fourth Center Hospital, Nankai University Affiliated Tianjin Fourth Center Hospital, Tianjin Medical University Affiliated Tianjin Fourth Center Hospital, Tianjin 300140, China; Animal Imaging Center (AIC), Wenzhou Seventh Peoples Hospital, Wenzhou 325000, China; Laboratory of Psychiatric-Neuroimaging-Genetic and Co-morbidity (PNGC_Lab), Tianjn Anding Hospital, Nankai University Affiliated Tianjin Anding Hospital, Tianjin Mental Health Center of Tianjin Medical University, Tianjin Medical University Affiliated Tianjin Anding Hospital, Tianjin 300222, China.
| | - Hongjun Tian
- Key Laboratory of Sensory Information Processing Abnormalities in Schizophrenia (SIPAC_Lab), Tianjin Fourth Center Hospital, Nankai University Affiliated Tianjin Fourth Center Hospital, Tianjin Medical University Affiliated Tianjin Fourth Center Hospital, Tianjin 300140, China
| | - Jingjing Zhu
- Animal Imaging Center (AIC), Wenzhou Seventh Peoples Hospital, Wenzhou 325000, China
| | - Tao Fang
- Key Laboratory of Sensory Information Processing Abnormalities in Schizophrenia (SIPAC_Lab), Tianjin Fourth Center Hospital, Nankai University Affiliated Tianjin Fourth Center Hospital, Tianjin Medical University Affiliated Tianjin Fourth Center Hospital, Tianjin 300140, China
| | - Jing Ping
- Animal Imaging Center (AIC), Wenzhou Seventh Peoples Hospital, Wenzhou 325000, China
| | - Lina Wang
- Laboratory of Psychiatric-Neuroimaging-Genetic and Co-morbidity (PNGC_Lab), Tianjn Anding Hospital, Nankai University Affiliated Tianjin Anding Hospital, Tianjin Mental Health Center of Tianjin Medical University, Tianjin Medical University Affiliated Tianjin Anding Hospital, Tianjin 300222, China
| | - Yun Sun
- Laboratory of Psychiatric-Neuroimaging-Genetic and Co-morbidity (PNGC_Lab), Tianjn Anding Hospital, Nankai University Affiliated Tianjin Anding Hospital, Tianjin Mental Health Center of Tianjin Medical University, Tianjin Medical University Affiliated Tianjin Anding Hospital, Tianjin 300222, China
| | - Langlang Cheng
- Animal Imaging Center (AIC), Wenzhou Seventh Peoples Hospital, Wenzhou 325000, China
| | - Chunmian Chen
- Animal Imaging Center (AIC), Wenzhou Seventh Peoples Hospital, Wenzhou 325000, China
| | - Guangdong Chen
- Animal Imaging Center (AIC), Wenzhou Seventh Peoples Hospital, Wenzhou 325000, China
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Ghaneirad E, Borgolte A, Sinke C, Čuš A, Bleich S, Szycik GR. The effect of multisensory semantic congruency on unisensory object recognition in schizophrenia. Front Psychiatry 2023; 14:1246879. [PMID: 38025441 PMCID: PMC10646423 DOI: 10.3389/fpsyt.2023.1246879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 10/16/2023] [Indexed: 12/01/2023] Open
Abstract
Multisensory, as opposed to unisensory processing of stimuli, has been found to enhance the performance (e.g., reaction time, accuracy, and discrimination) of healthy individuals across various tasks. However, this enhancement is not as pronounced in patients with schizophrenia (SZ), indicating impaired multisensory integration (MSI) in these individuals. To the best of our knowledge, no study has yet investigated the impact of MSI deficits in the context of working memory, a domain highly reliant on multisensory processing and substantially impaired in schizophrenia. To address this research gap, we employed two adopted versions of the continuous object recognition task to investigate the effect of single-trail multisensory encoding on subsequent object recognition in 21 schizophrenia patients and 21 healthy controls (HC). Participants were tasked with discriminating between initial and repeated presentations. For the initial presentations, half of the stimuli were audiovisual pairings, while the other half were presented unimodal. The task-relevant stimuli were then presented a second time in a unisensory manner (either auditory stimuli in the auditory task or visual stimuli in the visual task). To explore the impact of semantic context on multisensory encoding, half of the audiovisual pairings were selected to be semantically congruent, while the remaining pairs were not semantically related to each other. Consistent with prior studies, our findings demonstrated that the impact of single-trial multisensory presentation during encoding remains discernible during subsequent object recognition. This influence could be distinguished based on the semantic congruity between the auditory and visual stimuli presented during the encoding. This effect was more robust in the auditory task. In the auditory task, when congruent multisensory pairings were encoded, both participant groups demonstrated a multisensory facilitation effect. This effect resulted in improved accuracy and RT performance. Regarding incongruent audiovisual encoding, as expected, HC did not demonstrate an evident multisensory facilitation effect on memory performance. In contrast, SZs exhibited an atypically accelerated reaction time during the subsequent auditory object recognition. Based on the predictive coding model we propose that this observed deviations indicate a reduced semantic modulatory effect and anomalous predictive errors signaling, particularly in the context of conflicting cross-modal sensory inputs in SZ.
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Affiliation(s)
- Erfan Ghaneirad
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Hanover, Germany
| | - Anna Borgolte
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Hanover, Germany
| | - Christopher Sinke
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Division of Clinical Psychology and Sexual Medicine, Hannover Medical School, Hannover, Germany
| | - Anja Čuš
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Hanover, Germany
| | - Stefan Bleich
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Hanover, Germany
- Center for Systems Neuroscience, University of Veterinary Medicine, Hanover, Germany
| | - Gregor R. Szycik
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Hanover, Germany
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Abashkin DA, Karpov DS, Kurishev AO, Marilovtseva EV, Golimbet VE. ASCL1 Is Involved in the Pathogenesis of Schizophrenia by Regulation of Genes Related to Cell Proliferation, Neuronal Signature Formation, and Neuroplasticity. Int J Mol Sci 2023; 24:15746. [PMID: 37958729 PMCID: PMC10648210 DOI: 10.3390/ijms242115746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/25/2023] [Accepted: 10/28/2023] [Indexed: 11/15/2023] Open
Abstract
Schizophrenia (SZ) is a common psychiatric neurodevelopmental disorder with a complex genetic architecture. Genome-wide association studies indicate the involvement of several transcription factors, including ASCL1, in the pathogenesis of SZ. We aimed to identify ASCL1-dependent cellular and molecular mechanisms associated with SZ. We used Capture-C, CRISPR/Cas9 systems and RNA-seq analysis to confirm the involvement of ASCL1 in SZ-associated pathogenesis, establish a mutant SH-SY5Y line with a functional ASCL1 knockout (ASCL1-del) and elucidate differentially expressed genes that may underlie ASCL1-dependent pathogenic mechanisms. Capture-C confirmed the spatial interaction of the ASCL1 promoter with SZ-associated loci. Transcriptome analysis showed that ASCL1 regulation may be through a negative feedback mechanism. ASCL1 dysfunction affects the expression of genes associated with the pathogenesis of SZ, as well as bipolar and depressive disorders. Genes differentially expressed in ASCL1-del are involved in cell mitosis, neuronal projection, neuropeptide signaling, and the formation of intercellular contacts, including the synapse. After retinoic acid (RA)-induced differentiation, ASCL1 activity is restricted to a small subset of genes involved in neuroplasticity. These data suggest that ASCL1 dysfunction promotes SZ development predominantly before the onset of neuronal differentiation by slowing cell proliferation and impeding the formation of neuronal signatures.
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Affiliation(s)
| | - Dmitry S. Karpov
- Mental Health Research Center, Kashirskoe Sh., 34, Moscow 115522, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str. 32, Moscow 119991, Russia
| | | | | | - Vera E. Golimbet
- Mental Health Research Center, Kashirskoe Sh., 34, Moscow 115522, Russia
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