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Youn S, Guadagno BL, Byrne LK, Watson AE, Murrihy S, Cotton SM. Systematic Review and Meta-analysis: Rates of Violence During First-Episode Psychosis (FEP). Schizophr Bull 2024; 50:757-770. [PMID: 38412435 PMCID: PMC11283196 DOI: 10.1093/schbul/sbae010] [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: 02/29/2024]
Abstract
BACKGROUND Most people with psychotic disorders will never commit an act of violence. However, the risk of violence committed by people with schizophrenia is higher than the general population. Violence risk is also known to be highest during the first episode of psychosis compared to later stages of illness. Despite this, there have been no comprehensive reviews conducted in the past 10 years examining rates of violence during FEP. We aimed to provide an updated review of the rate of violence in people with FEP. STUDY DESIGN Meta-analytical techniques were used to identify pooled proportions of violence according to severity (less serious, serious, severe) and timing of violence (before presentation, at first presentation, after presentation to services). STUDY RESULTS Twenty-two studies were included. The pooled prevalence was 13.4% (95% CI [9.0%-19.5%]) for any violence, 16.3% (95% CI [9.1%-27.4%]) for less serious violence, 9.7% (95% CI [5.4%-17.0%]) for serious violence and 2.7% for severe violence, regardless of time point. The pooled prevalence of any violence was 11.6% (95% CI [6.8%-18.9%]) before presentation, 20.8% (95% CI [9.8%-38.7%]) at first presentation and 13.3% (95% CI [7.3%-23.0%]) after presentation to services. CONCLUSION Overall, rates of violence appear to be lower in more recent years. However, due to the high between-study heterogeneity related to study design, the findings must be interpreted with consideration of sample characteristics and other contextual factors. The prevalence of violence remained high at all-time points, suggesting that more targeted, holistic, and early interventions are needed for clinical FEP groups.
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Affiliation(s)
- Sarah Youn
- Orygen, 35 Poplar Road, Parkville, Melbourne, Victoria 3052, Australia
- Centre for Youth Mental Health, The University of Melbourne, 35 Poplar Road, Parkville, Melbourne, Victoria 3052, Australia
- School of Psychology, Deakin University, 1 Gheringhap Street, Geelong, Victoria 3220, Australia
| | - Belinda L Guadagno
- School of Psychology, Deakin University, 1 Gheringhap Street, Geelong, Victoria 3220, Australia
| | - Linda K Byrne
- School of Psychology, Deakin University, 1 Gheringhap Street, Geelong, Victoria 3220, Australia
- Faculty of Psychology, Counselling and Psychotherapy, The Cairnmillar Institute, 391-393 Tooroonga Road, Hawthorn East, Victoria 3123, Australia
| | - Amity E Watson
- Orygen, 35 Poplar Road, Parkville, Melbourne, Victoria 3052, Australia
- Centre for Youth Mental Health, The University of Melbourne, 35 Poplar Road, Parkville, Melbourne, Victoria 3052, Australia
| | - Sean Murrihy
- Orygen, 35 Poplar Road, Parkville, Melbourne, Victoria 3052, Australia
- Centre for Youth Mental Health, The University of Melbourne, 35 Poplar Road, Parkville, Melbourne, Victoria 3052, Australia
- Melbourne School of Psychological Sciences, The University of Melbourne, Parkville, Melbourne, Victoria 3010, Australia
| | - Sue M Cotton
- Orygen, 35 Poplar Road, Parkville, Melbourne, Victoria 3052, Australia
- Centre for Youth Mental Health, The University of Melbourne, 35 Poplar Road, Parkville, Melbourne, Victoria 3052, Australia
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Guo F, Jing L, Xu Y, Zhang K, Li Y, Sun N, Liu P, Zhang H. Gut microbiota and inflammatory factor characteristics in major depressive disorder patients with anorexia. BMC Psychiatry 2024; 24:334. [PMID: 38698338 PMCID: PMC11067108 DOI: 10.1186/s12888-024-05778-0] [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: 10/30/2023] [Accepted: 04/18/2024] [Indexed: 05/05/2024] Open
Abstract
BACKGROUND This study aimed to explore the gut microbiota and inflammatory factor characteristics in major depressive disorder (MDD) patients with anorexia and to analyze the correlation between gut microbiota and inflammatory factors, anorexia, and HAMD scores. METHODS 46 MDD patients and 46 healthy controls (HC) were included in the study. The 46 MDD patients were divided into two groups according to whether they had anorexia:20 MDD without anorexia (MDA0 group) and 26 MDD with anorexia (MDA1 group). We used the Hamilton Depression Scale-24 (HAMD-24) to evaluate the depression status of all participants and 16 S ribosomal RNA (16 S rRNA)sequencing to evaluate the composition of the gut microbiota. Inflammatory factors in peripheral blood such as C-reactive protein (CRP) were detected using enzyme-linked immunosorbent assay (ELISA). Spearman's correlation analysis was used to evaluate the correlation between gut microbiota and inflammatory factors, HAMD scores, and anorexia. RESULTS 1). CRP was significantly higher in the MDA0, MDA1, than HC. 2). An analysis of α-diversity shows: the Simpson and Pielou indices of the HC group are higher than the MDA1 group (P < 0.05). 3). The β-diversity analysis shows differences in the composition of microbial communities between the MDA0, MDA1, and HC group. 4). A correlation analysis showed that Blautia positively correlated with anorexia, HAMD scores, and CRP level, whereas Faecalibacterium, Bacteroides, Roseburia, and Parabacteroides negatively correlated with anorexia, HAMD scores, and CRP level. 5). The receiver operating characteristic (ROC) curve was drawn using the differential bacterial genera between MDD patients with or without anorexia as biomarkers to identify whether MDD patients were accompanied with anorexia, and its area under curve (AUC) was 0.85. The ROC curve was drawn using the differential bacterial genera between MDD patients with anorexia and healthy controls as biomarkers to diagnose MDD patients with anorexia, with its AUC was 0.97. CONCLUSION This study suggested that MDD patients with anorexia had a distinct gut microbiota compared to healthy individuals, with higher level of CRP. Blautia was more abundant in MDD patients with anorexia and positively correlated with CRP, HAMD scores, and anorexia. The gut microbiota might have influenced MDD and anorexia through the inflammatory factor CRP.
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Affiliation(s)
- Fengtao Guo
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, 030001, China
- Shanxi Medical University, Taiyuan, 030001, China
- Yanhu District Branch, The First Hospital of Shanxi Medical University, Yuncheng, 044000, China
| | - Lin Jing
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, 030001, China
- Shanxi Medical University, Taiyuan, 030001, China
| | - Yunfan Xu
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, 030001, China
- Shanxi Medical University, Taiyuan, 030001, China
| | - Kun Zhang
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, 030001, China
- Shanxi Medical University, Taiyuan, 030001, China
| | - Ying Li
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, 030001, China
- Shanxi Medical University, Taiyuan, 030001, China
| | - Ning Sun
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, 030001, China
| | - Penghong Liu
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, 030001, China.
- Shanxi Medical University, Taiyuan, 030001, China.
| | - Huanhu Zhang
- Shanxi Medical University, Taiyuan, 030001, China.
- Shanxi University of Chinese Medicine, Jinzhong, 030619, China.
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Phenotypes, mechanisms and therapeutics: insights from bipolar disorder GWAS findings. Mol Psychiatry 2022; 27:2927-2939. [PMID: 35351989 DOI: 10.1038/s41380-022-01523-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 03/02/2022] [Accepted: 03/10/2022] [Indexed: 12/25/2022]
Abstract
Genome-wide association studies (GWAS) have reported substantial genomic loci significantly associated with clinical risk of bipolar disorder (BD), and studies combining techniques of genetics, neuroscience, neuroimaging, and pharmacology are believed to help tackle clinical problems (e.g., identifying novel therapeutic targets). However, translating findings of psychiatric genetics into biological mechanisms underlying BD pathogenesis remains less successful. Biological impacts of majority of BD GWAS risk loci are obscure, and the involvement of many GWAS risk genes in this illness is yet to be investigated. It is thus necessary to review the progress of applying BD GWAS risk genes in the research and intervention of the disorder. A comprehensive literature search found that a number of such risk genes had been investigated in cellular or animal models, even before they were highlighted in BD GWAS. Intriguingly, manipulation of many BD risk genes (e.g., ANK3, CACNA1C, CACNA1B, HOMER1, KCNB1, MCHR1, NCAN, SHANK2 etc.) resulted in altered murine behaviors largely restoring BD clinical manifestations, including mania-like symptoms such as hyperactivity, anxiolytic-like behavior, as well as antidepressant-like behavior, and these abnormalities could be attenuated by mood stabilizers. In addition to recapitulating phenotypic characteristics of BD, some GWAS risk genes further provided clues for the neurobiology of this illness, such as aberrant activation and functional connectivity of brain areas in the limbic system, and modulated dendritic spine morphogenesis as well as synaptic plasticity and transmission. Therefore, BD GWAS risk genes are undoubtedly pivotal resources for modeling this illness, and might be translational therapeutic targets in the future clinical management of BD. We discuss both promising prospects and cautions in utilizing the bulk of useful resources generated by GWAS studies. Systematic integrations of findings from genetic and neuroscience studies are called for to promote our understanding and intervention of BD.
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