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Feng Y, Sun L, Dang X, Liu D, Liao Z, Yao J, Zhang Y, Deng Z, Li J, Zhao M, Liu F. Aberrant glycosylation in schizophrenia: insights into pathophysiological mechanisms and therapeutic potentials. Front Pharmacol 2024; 15:1457811. [PMID: 39286629 PMCID: PMC11402814 DOI: 10.3389/fphar.2024.1457811] [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: 07/01/2024] [Accepted: 08/22/2024] [Indexed: 09/19/2024] Open
Abstract
Schizophrenia (SCZ) is a severe neuropsychiatric disorder characterized by cognitive, affective, and social dysfunction, resulting in hallucinations, delusions, emotional blunting, and disordered thinking. In recent years, proteomics has been increasingly influential in SCZ research. Glycosylation, a key post-translational modification, can alter neuronal stability and normal signaling in the nervous system by affecting protein folding, stability, and cellular signaling. Recent research evidence suggests that abnormal glycosylation patterns exist in different brain regions in autopsy samples from SCZ patients, and that there are significant differences in various glycosylation modification types and glycosylation modifying enzymes. Therefore, this review explores the mechanisms of aberrant modifications of N-glycosylation, O-glycosylation, glycosyltransferases, and polysialic acid in the brains of SCZ patients, emphasizing their roles in neurotransmitter receptor function, synaptic plasticity, and neural adhesion. Additionally, the effects of antipsychotic drugs on glycosylation processes and the potential for glycosylation-targeted therapies are discussed. By integrating these findings, this review aims to provide a comprehensive perspective to further understand the role of aberrant glycosylation modifications in the pathophysiology of SCZ.
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Affiliation(s)
- Yanchen Feng
- The First Clinical Medical School, Henan University of Chinese Medicine, Zhengzhou, China
- Traditional Chinese Medicine (Zhong Jing) School, Henan University of Chinese Medicine, Zhengzhou, China
| | - Lu Sun
- The First Clinical Medical School, Henan University of Chinese Medicine, Zhengzhou, China
| | - Xue Dang
- Traditional Chinese Medicine (Zhong Jing) School, Henan University of Chinese Medicine, Zhengzhou, China
| | - Diyan Liu
- Traditional Chinese Medicine (Zhong Jing) School, Henan University of Chinese Medicine, Zhengzhou, China
| | - Ziyun Liao
- College of Acupuncture, Moxibustion and Tuina, Henan University of Chinese Medicine, Zhengzhou, China
| | - Jianping Yao
- Traditional Chinese Medicine (Zhong Jing) School, Henan University of Chinese Medicine, Zhengzhou, China
| | - Yunke Zhang
- School of Rehabilitation Medicine, Henan University of Chinese Medicine, Zhengzhou, China
| | - Ziqi Deng
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
| | - Jinyao Li
- Traditional Chinese Medicine (Zhong Jing) School, Henan University of Chinese Medicine, Zhengzhou, China
| | - Min Zhao
- The First Clinical Medical School, Henan University of Chinese Medicine, Zhengzhou, China
- Hospital of Encephalopathy, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Feixiang Liu
- The First Clinical Medical School, Henan University of Chinese Medicine, Zhengzhou, China
- Hospital of Encephalopathy, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
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Jolley S, Grice S. State of the art in psychological therapies for psychosis: Family interventions for psychosis. Psychol Psychother 2024; 97:19-33. [PMID: 37515432 DOI: 10.1111/papt.12487] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023]
Abstract
PURPOSE It is a half-century since the coalescence of social psychiatry and systemic family therapy approaches started to inform condition-specific therapeutic work with families to reduce relapse and hospital readmission for people with schizophrenia. Today, family interventions are a cornerstone of international guidelines for the treatment of psychosis, and of workforce development initiatives. Effect sizes for clinical and economic outcomes are large, and the evidence base is robust and reliable, not only for outcomes but also for the underpinning theoretical models, which are coherent and consistent. Few, if any, psychological therapies, have so powerful a framework to drive widespread implementation. Nevertheless, delivery in clinical services is variable, often lagging behind that of individual cognitive behavioural therapy, notwithstanding its considerably weaker implementation framework. Our aim in this article is to formulate this translation failure and offer potential solutions. METHOD We summarise the model/intervention and supporting evidence, then consider why delivery remains problematic. RESULTS We highlight the inter-linked issues of conceptual confusion between and conflation of, different approaches to working with families; of addressing diagnostic uncertainty, complex comorbidity and adapting interventions for specific populations; and of translation from gold-standard research trial practice, through educational curricula and training programmes, to routine delivery in frontline services. CONCLUSION We present our view of clinical, research and workforce development priorities to address these issues and continue the collective effort, moving into the next half-century, to work more effectively with people with psychosis and their families, to further improve outcomes.
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Affiliation(s)
- Suzanne Jolley
- Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King's College, London, London, UK
| | - Sarah Grice
- South London and Maudsley NHS Foundation Trust, London, UK
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Vita A, Barlati S, Bellomo A, Poli PF, Masi G, Nobili L, Serafini G, Zuddas A, Vicari S. Patterns of Care for Adolescent With Schizophrenia: A Delphi-Based Consensus Study. Front Psychiatry 2022; 13:844098. [PMID: 35432022 PMCID: PMC9007083 DOI: 10.3389/fpsyt.2022.844098] [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: 12/27/2021] [Accepted: 03/08/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND The current conceptualization of schizophrenia as neurodevelopmental disorder should lead to innovative public health policies in terms of a reorganization of the mental health care systems, particularly in the transition from adolescence to adulthood, to reduce personal, familiar, and social costs and burdens. The purpose of the project was to perform a survey among a panel of Italian schizophrenia experts, to share evidence-based information on adolescent schizophrenia and explore the degree of consensus among professionals in the following four macro-areas: early diagnosis; pharmacological treatment; health care system organization and transition process from adolescent to adulthood; and psychosocial interventions. METHODS The consensus process consisted of a two-step web-based Delphi method, which took place between June and November 2021. The survey was developed by a panel of four psychiatrists and four child neuropsychiatrists, identified as key opinion leaders (KOLs). The KOLs identified 21 statements involving a total of 70 items with a major need of clarification on early-onset schizophrenia (EOS). The survey was distributed to 86 specialists in psychiatry and child neuropsychiatry. RESULTS The results revealed a large agreement among the expert group on all the investigated areas of adolescent schizophrenia patterns of care and management. Consensus was ultimately reached for 67 items of the Delphi survey (95.7%), while negative consensus was reached for 2 items and no consensus was reached for 1 item. CONCLUSIONS Overall, results showed a significant gap between the acquired scientific knowledge and clinical practice. In this scenario, it should be necessary to plan specific initiatives at a multiple level, to edit recommendations on clinical decision-making, as well as to prompt changes at the political and organizational levels, also involving scientific societies, patients, and family associations, to overcome the barriers that delay the implementation process.
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Affiliation(s)
- Antonio Vita
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Stefano Barlati
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Antonello Bellomo
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Paolo Fusar Poli
- Department of Nervous System and Behavior Sciences, University of Pavia, Pavia, Italy
| | - Gabriele Masi
- Stella Maris, Scientific Institute of Child Neurology and Psychiatry, Pisa, Italy
| | - Lino Nobili
- Child Neuropsychiatry, Genoa and Department of Neuroscience (DINOGMI), IRCCS G. Gaslini Institute, University of Genoa, Genoa, Italy
| | | | - Alessandro Zuddas
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Stefano Vicari
- Department of Life Sciences and Publich Health, Catholic University and Bambino Gesù, Rome, Italy.,Children's Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
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De Berardis D, De Filippis S, Masi G, Vicari S, Zuddas A. A Neurodevelopment Approach for a Transitional Model of Early Onset Schizophrenia. Brain Sci 2021; 11:brainsci11020275. [PMID: 33672396 PMCID: PMC7926620 DOI: 10.3390/brainsci11020275] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/03/2021] [Accepted: 02/05/2021] [Indexed: 12/16/2022] Open
Abstract
In the last decades, the conceptualization of schizophrenia has dramatically changed, moving from a neurodegenerative process occurring in early adult life to a neurodevelopmental disorder starting be-fore birth, showing a variety of premorbid and prodromal symptoms and, in relatively few cases, evolving in the full-blown psychotic syndrome. High rates of co-occurring different neurodevelopmental disorders such as Autism spectrum disorder and ADHD, predating the onset of SCZ, and neurobio-logical underpinning with significant similarities, support the notion of a pan-developmental disturbance consisting of impairments in neuromotor, receptive language, social and cognitive development. Con-sidering that many SCZ risk factors may be similar to symptoms of other neurodevelopmental psychi-atric disorders, transition processes from child & adolescent to adult systems of care should include both high risk people as well as subject with other neurodevelopmental psychiatric disorders with different levels of severity. This descriptive mini-review discuss the need of innovative clinical approaches, re-considering specific diagnostic categories, stimulating a careful analysis of risk factors and promoting the appropriate use of new and safer medications.
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Affiliation(s)
- Domenico De Berardis
- Department of Mental Health, Psychiatric Service of Diagnosis and Treatment, Hospital “G. Mazzini,” National Health Service (NHS), 64100 ASL 4 Teramo, Italy
- Department of Neurosciences and Imaging, University “G. D’Annunzio”, 66100 Chieti, Italy
- Correspondence:
| | - Sergio De Filippis
- Department of Neuropsychiatry, Villa von Siebenthal Neuropsychiatric Hospital and Clinic, Genzano di Roma, 100045 Rome, Italy;
| | - Gabriele Masi
- IRCCS Stella Maris, Scientific Institute of Child Neurology and Psychiatry, Calambrone, 56128 Pisa, Italy;
| | - Stefano Vicari
- Department of Life Sciences and Publich Health, Catholic University, 00135 Rome, Italy;
- Child & Adolescent Psychiatry, Bambino Gesù Children’s Hospital, 00168 Rome, Italy
| | - Alessandro Zuddas
- Child and Adolescent Neuropsychiatry Unit, Department of Biomedical Sciences, University of Cagliari and “A Cao” Paediatric Hospital, “G Brotzu” Hospital Trust, 109134 Cagliari, Italy;
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