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Guo X, Chen Y, Huang H, Liu Y, Kong L, Chen L, Lyu H, Gao T, Lai J, Zhang D, Hu S. Serum signature of antibodies to Toxoplasma gondii, rubella virus, and cytomegalovirus in females with bipolar disorder: A cross-sectional study. J Affect Disord 2024; 361:82-90. [PMID: 38844171 DOI: 10.1016/j.jad.2024.06.014] [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: 04/20/2024] [Revised: 05/29/2024] [Accepted: 06/03/2024] [Indexed: 06/13/2024]
Abstract
BACKGROUND AND AIM Immunity alterations have been observed in bipolar disorder (BD). However, whether serum positivity of antibodies to Toxoplasma gondii (T gondii), rubella, and cytomegalovirus (CMV) shared clinical relevance with BD, remains controversial. This study aimed to investigate this association. METHODS Antibody seropositivity of IgM and IgG to T gondii, rubella virus, and CMV of females with BD and controls was extracted based on medical records from January 2018 to January 2023. Family history, type of BD, onset age, and psychotic symptom history were also collected. RESULTS 585 individuals with BD and 800 healthy controls were involved. Individuals with BD revealed a lower positive rate of T gondii IgG in the 10-20 aged group (OR = 0.10), and a higher positive rate of rubella IgG in the 10-20 (OR = 5.44) and 20-30 aged group (OR = 3.15). BD with family history preferred a higher positive rate of T gondii IgG (OR = 24.00). Type-I BD owned a decreased positive rate of rubella IgG (OR = 0.37) and an elevated positive rate of CMV IgG (OR = 2.12) compared to type-II BD, while BD with early onset showed contrast results compared to BD without early onset (Rubella IgG, OR = 2.54; CMV IgG, OR = 0.26). BD with psychotic symptom history displayed a lower positive rate of rubella IgG (OR = 0.50). LIMITATIONS Absence of male evidence and control of socioeconomic status and environmental exposure. CONCLUSIONS Differential antibody seropositive rates of T gondii, rubella, and cytomegalovirus in BD were observed.
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Affiliation(s)
- Xiaonan Guo
- Department of Psychiatry, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China.
| | - Yiqing Chen
- Department of Psychiatry, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China.
| | - Huimin Huang
- Department of Psychiatry, The Third Affiliated Hospital of Wenzhou Medical University, 325800, Wenzhou, Zhejiang, China.
| | - Yifeng Liu
- Key Laboratory of Reproductive Genetics (Ministry of Education) and Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China.
| | - Lingzhuo Kong
- Department of Psychiatry, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China.
| | - Lizichen Chen
- Department of Psychiatry, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China.
| | - Hailong Lyu
- Department of Psychiatry, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China.
| | | | - Jianbo Lai
- Department of Psychiatry, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; Zhejiang Key Laboratory of Precision Psychiatry, Hangzhou 310003, China; Brain Research Institute of Zhejiang University, Hangzhou 310058, China; Zhejiang Engineering Center for Mathematical Mental Health, Hangzhou 310003, China; MOE Frontier Science Center for Brain Science and Brain-machine Integration, Zhejiang University School of Medicine, Hangzhou 310058, China.
| | - Dan Zhang
- Key Laboratory of Reproductive Genetics (Ministry of Education) and Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China.
| | - Shaohua Hu
- Department of Psychiatry, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; Zhejiang Key Laboratory of Precision Psychiatry, Hangzhou 310003, China; Brain Research Institute of Zhejiang University, Hangzhou 310058, China; Zhejiang Engineering Center for Mathematical Mental Health, Hangzhou 310003, China; MOE Frontier Science Center for Brain Science and Brain-machine Integration, Zhejiang University School of Medicine, Hangzhou 310058, China; Department of Psychology and Behavioral Sciences, Graduate School, Zhejiang University, Hangzhou 310058, China; Nanhu Brain-computer Interface Institute, Hangzhou 311100, China.
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Gangadin SS, Enthoven AD, van Beveren NJM, Laman JD, Sommer IEC. Immune Dysfunction in Schizophrenia Spectrum Disorders. Annu Rev Clin Psychol 2024; 20:229-257. [PMID: 38996077 DOI: 10.1146/annurev-clinpsy-081122-013201] [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: 07/14/2024]
Abstract
Evidence from epidemiological, clinical, and biological research resulted in the immune hypothesis: the hypothesis that immune system dysfunction is involved in the pathophysiology of schizophrenia spectrum disorders (SSD). The promising implication of this hypothesis is the potential to use existing immunomodulatory treatment for innovative interventions for SSD. Here, we provide a selective historical review of important discoveries that have shaped our understanding of immune dysfunction in SSD. We first explain the basic principles of immune dysfunction, after which we travel more than a century back in time. Starting our journey with neurosyphilis-associated psychosis in the nineteenth century, we continue by evaluating the role of infections and autoimmunity in SSD and findings from assessment of immune function using new techniques, such as cytokine levels, microglia density, neuroimaging, and gene expression. Drawing from these findings, we discuss anti-inflammatory interventions for SSD, and we conclude with a look into the future.
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Affiliation(s)
- S S Gangadin
- Department of Psychiatry, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands;
| | - A D Enthoven
- Department of Psychiatry, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands;
| | - N J M van Beveren
- Department of Neuroscience, Erasmus MC, Rotterdam, The Netherlands
- Parnassia Group for Mental Health Care, The Hague and Rotterdam, The Netherlands
| | - J D Laman
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - I E C Sommer
- Department of Psychiatry, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands;
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Guillen-Burgos HF, Galvez-Florez JF, Moreno-Lopez S, Gonzalez I, Guillen M, Anaya JM. Factors associated with mental health outcomes after COVID-19: A 24-month follow-up longitudinal study. Gen Hosp Psychiatry 2023; 84:241-249. [PMID: 37690207 DOI: 10.1016/j.genhosppsych.2023.08.009] [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: 02/23/2023] [Revised: 08/26/2023] [Accepted: 08/29/2023] [Indexed: 09/12/2023]
Abstract
OBJECTIVE Investigate the proportion of mental health outcomes (MHOs) and associated factors in COVID-19 survivors during a 24-month follow-up period. METHOD An observational, prospective study was performed in a teaching hospital in Barranquilla, Colombia, from April 1, 2020, to August 30, 2022. A cohort of 1565 COVID-19 survivors was recruited after discharge from the emergency room (ER), inpatient floor (IF), and intensive care unit (ICU) services and followed for 24 -months. The clinical assessment included screening scales for symptoms of anxiety, depressive, post-traumatic stress disorder (PTSD), and insomnia. Sociodemographic and clinical factors were also collected to identify possible associated factors. Descriptive, bivariate and mixed random-effect linear models were performed. RESULTS A total of 1565 patients were included, of whom 785 (50.35%) were men. A large proportion of patients with mental symptoms were identified. After 24-months, the proportions of anxiety, depression, PTSD, and insomnia symptoms remained high at 16.55%, 21.79%, 35.27%, and 23.86%, respectively. Social factors, location of hospital stays, physical comorbidities, and the severity of COVID-19 were significantly associated with anxiety, depression, PTSD, and insomnia symptoms. CONCLUSIONS COVID-19's 2-year deleterious impacts on mental health, as well as the variables influencing these findings, have been documented. These results should aid in the development of public health initiatives to reduce morbidity rates in post-COVID-19 patients.
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Affiliation(s)
- Hernan F Guillen-Burgos
- Center for Clinical and Translational Research, Facultad de Ciencias de la Salud, Universidad Simón Bolívar, Barranquilla, Colombia; Center for Clinical and Translational Research, School of Medicine, Universidad El Bosque, Bogotá, Colombia; Department of Psychiatry and Mental Health, Pontificia Universidad Javeriana, Hospital Universitario San Ignacio, Bogotá, Colombia.
| | - Juan Francisco Galvez-Florez
- Center for Clinical and Translational Research, Facultad de Ciencias de la Salud, Universidad Simón Bolívar, Barranquilla, Colombia; Latin-American Society of Consultation - Liaison Psychiatry, Bogotá, Colombia
| | | | - Isabella Gonzalez
- Center for Clinical and Translational Research, Facultad de Ciencias de la Salud, Universidad Simón Bolívar, Barranquilla, Colombia; School of Medicine, Universidad del Rosario, Bogotá, Colombia
| | - Manuela Guillen
- Center for Clinical and Translational Research, Facultad de Ciencias de la Salud, Universidad Simón Bolívar, Barranquilla, Colombia; School of Medicine, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Juan-Manuel Anaya
- Health Research and Innovation Center - Coosalud EPS, Cartagena, Colombia.
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Min S, Gandal MJ, Kopp RF, Liu C, Chen C. No Increased Detection of Nucleic Acids of CNS-related Viruses in the Brains of Patients with Schizophrenia, Bipolar Disorder, and Autism Spectrum Disorder. Schizophr Bull 2023; 49:551-558. [PMID: 36857101 PMCID: PMC10154715 DOI: 10.1093/schbul/sbad003] [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: 03/02/2023]
Abstract
BACKGROUND AND HYPOTHESIS Viral infections are increasingly recognized in the etiology of psychiatric disorders based on epidemiological and serological studies. Few studies have analyzed viruses directly within the brain and no comprehensive investigation of viral infection within diseased brains has been completed. This study aims to determine whether viral infection in brain tissues is a risk factor for 3 major psychiatric disorders, including schizophrenia, bipolar disorder, and autism spectrum disorder. STUDY DESIGN This study directly evaluated the presence of viral DNA or RNA in 1569 brains of patients and controls using whole-genome sequencing and RNA sequencing data with 4 independent cohorts. The PathSeq tool was used to identify known human viruses in the genome and transcriptome of patients and controls. STUDY RESULTS A variety of DNA and RNA viruses related to the central nervous system were detected in the brains of patients with major psychiatric disorders, including viruses belonging to Herpesviridae, Polyomaviridae, Retroviridae, Flaviviridae, Parvoviridae, and Adenoviridae. However, no consistent significant differences were found between patients and controls in terms of types and amount of virus detected at both DNA and RNA levels. CONCLUSIONS The findings of this study do not suggest an association between viral infection in postmortem brains and major psychiatric disorders.
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Affiliation(s)
- Shishi Min
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, and Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Psychiatry, SUNY Upstate Medical University, Syracuse, NY, USA
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Michael J Gandal
- Lifespan Brain Institute at Penn Medicine and The Children’s Hospital of Philadelphia, Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, USA
| | - Richard F Kopp
- Department of Psychiatry, SUNY Upstate Medical University, Syracuse, NY, USA
| | - Chunyu Liu
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, and Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Psychiatry, SUNY Upstate Medical University, Syracuse, NY, USA
- School of Psychology, Shaanxi Normal University, Xi’an, Shaanxi, China
| | - Chao Chen
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, and Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Animal Models for Human Diseases, Central South University, Changsha, Hunan, China
- National Clinical Research Center on Mental Disorders, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
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5
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Buka SL, Lee YH, Goldstein JM. Infections During Pregnancy and Risks for Adult Psychosis: Findings from the New England Family Study. Curr Top Behav Neurosci 2023; 61:49-69. [PMID: 36376640 DOI: 10.1007/7854_2022_397] [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: 06/16/2023]
Abstract
For the past 40 years, our team has conducted a unique program of research investigating the prenatal risks for schizophrenia and related adult psychiatric disorders. The New England Family Study is a long-term prospective cohort study of over 16,000 individuals followed from the prenatal period for over 50 years. This chapter summarizes several major phases and findings from this work, highlighting recent results on maternal prenatal bacterial infections and brain imaging. Implications regarding the causes and potential prevention of major psychotic disorders are discussed.
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Affiliation(s)
- Stephen L Buka
- Department of Epidemiology, Brown University School of Public Health, Providence, RI, USA.
| | - Younga Heather Lee
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
- Departments of Psychiatry and Medicine, Harvard Medical School, Boston, MA, USA
| | - Jill M Goldstein
- Departments of Psychiatry and Medicine, Harvard Medical School, Boston, MA, USA
- Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA
- Innovation Center on Sex Differences in Medicine, Massachusetts General Hospital, Boston, MA, USA
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6
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James LM, Charonis SA, Georgopoulos AP. Schizophrenia, Human Leukocyte Antigen (HLA), and Herpes Viruses: Immunogenetic Associations at the Population Level. Neurosci Insights 2023; 18:26331055231166411. [PMID: 37077512 PMCID: PMC10108429 DOI: 10.1177/26331055231166411] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 03/13/2023] [Indexed: 04/21/2023] Open
Abstract
Several factors have been implicated in schizophrenia (SZ), including human herpes viruses (HHV) and the adaptive immunity Human Leukocyte Antigen (HLA) genes. Here we investigated these issues in 2 complementary ways. In one analysis, we evaluated SZ-HLA and HHV-HLA associations at the level of a single allele by computing (a) a SZ-HLA protection/susceptibility (P/S) score based on the covariance between SZ and 127 HLA allele prevalences in 14 European countries, (b) estimating in silico HHV-HLA best binding affinities for the 9 HHV strains, and (c) evaluating the dependence of P/S score on HHV-HLA binding affinities. These analyses yielded (a) a set of 127 SZ-HLA P/S scores, varying by >200× (maximum/minimum), which could not be accounted for by chance, (b) a set of 127 alleles × 9 HHV best-estimated affinities, varying by >600×, and (c) a set of correlations between SZ-HLA P/S scores and HHV-HLA binding which indicated a prominent role of HHV1. In a subsequent analysis, we extended these findings to the individual person by taking into account the fact that every individual carries 12 HLA alleles and computed (a) the average SZ-HLA P/S scores of 12 randomly chosen alleles (2 per gene), an indicator of HLA-based SZ P/S for an individual, and (b) the average of the corresponding HHV estimated affinities for those alleles, an indicator of overall effectiveness of HHV-HLA binding. We found (a) that HLA protection for SZ was significantly more prominent than susceptibility, and (b) that protective SZ-HLA scores were associated with higher HHV-HLA binding affinities, indicating that HLA binding and subsequent elimination of several HHV strains may confer protection against schizophrenia.
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Affiliation(s)
- Lisa M James
- The HLA Research Group, Department of Veterans Affairs Health Care System, Brain Sciences Center, Minneapolis, MN, USA
- Department of Neuroscience, University of Minnesota Medical School, Minneapolis, MN, USA
- Department of Psychiatry, University of Minnesota Medical School, Minneapolis, MN, USA
- Lisa M James, Brain Sciences Center (11B), Minneapolis VAHCS, One Veterans Drive, Minneapolis, MN 55417, USA.
| | - Spyros A Charonis
- The HLA Research Group, Department of Veterans Affairs Health Care System, Brain Sciences Center, Minneapolis, MN, USA
- Department of Neuroscience, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Apostolos P Georgopoulos
- The HLA Research Group, Department of Veterans Affairs Health Care System, Brain Sciences Center, Minneapolis, MN, USA
- Department of Neuroscience, University of Minnesota Medical School, Minneapolis, MN, USA
- Department of Psychiatry, University of Minnesota Medical School, Minneapolis, MN, USA
- Department of Neurology, University of Minnesota Medical School, Minneapolis, MN, USA
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7
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Webster MJ. Infections, Inflammation, and Psychiatric Illness: Review of Postmortem Evidence. Curr Top Behav Neurosci 2023; 61:35-48. [PMID: 35505055 DOI: 10.1007/7854_2022_362] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
While there is an abundance of epidemiological evidence implicating infectious agents in the etiology of severe mental illnesses, postmortem studies have not yet detected an increased incidence of microbial nucleic acid or proteins in the brains of people with mental illness. Nevertheless, abnormally expressed immune and inflammatory markers have consistently been found in the postmortem brain of patients with schizophrenia and mood disorders. Some of these abnormalities may be the result of an infection in utero or early in life that not only impacted the developing immune system but also the developing neurons of the brain. Some of the immune markers that are consistently found to be upregulated in schizophrenia implicate a possible viral infection and the blood brain barrier in the etiology and neuropathology of the disorder.
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Olfactory impairment in psychiatric disorders: Does nasal inflammation impact disease psychophysiology? Transl Psychiatry 2022; 12:314. [PMID: 35927242 PMCID: PMC9352903 DOI: 10.1038/s41398-022-02081-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 07/14/2022] [Accepted: 07/20/2022] [Indexed: 12/04/2022] Open
Abstract
Olfactory impairments contribute to the psychopathology of mental illnesses such as schizophrenia and depression. Recent neuroscience research has shed light on the previously underappreciated olfactory neural circuits involved in regulation of higher brain functions. Although environmental factors such as air pollutants and respiratory viral infections are known to contribute to the risk for psychiatric disorders, the role of nasal inflammation in neurobehavioral outcomes and disease pathophysiology remains poorly understood. Here, we will first provide an overview of published findings on the impact of nasal inflammation in the olfactory system. We will then summarize clinical studies on olfactory impairments in schizophrenia and depression, followed by preclinical evidence on the neurobehavioral outcomes produced by olfactory dysfunction. Lastly, we will discuss the potential impact of nasal inflammation on brain development and function, as well as how we can address the role of nasal inflammation in the pathophysiological mechanisms underlying psychiatric disorders. Considering the current outbreak of Coronavirus Disease 2019 (COVID-19), which often causes nasal inflammation and serious adverse effects for olfactory function that might result in long-lasting neuropsychiatric sequelae, this line of research is particularly critical to understanding of the potential significance of nasal inflammation in the pathophysiology of psychiatric disorders.
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Runge K, Balla A, Fiebich BL, Maier SJ, Pankratz B, Schlump A, Nickel K, Dersch R, Domschke K, Tebartz van Elst L, Endres D. Antibody indices of infectious pathogens from serum and cerebrospinal fluid in patients with schizophrenia spectrum disorders. Fluids Barriers CNS 2022; 19:61. [PMID: 35906648 PMCID: PMC9338642 DOI: 10.1186/s12987-022-00355-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 06/30/2022] [Indexed: 11/10/2022] Open
Abstract
Introduction Infectious and immunological theories of schizophrenia have been discussed for over a century. Contradictory results for infectious agents in association with schizophrenia spectrum disorders (SSDs) were reported. The rationale of this study was to investigate intrathecal antibody synthesis of the most frequently discussed neurotropic pathogens using a pathogen-specific antibody index (AI) in patients with SSD in comparison to controls. Methods In 100 patients with SSD and 39 mentally healthy controls with idiopathic intracranial hypertension (IIH), antibodies against the herpesviruses EBV, CMV, and HSV 1/2 as well as the protozoan Toxoplasma gondii, were measured in paired cerebrospinal fluid (CSF) and serum samples with ELISA-kits. From these antibody concentrations the pathogen-specific AIs were determined with the assumption of intrathecal antibody synthesis at values > 1.5. Results No significant difference was detected in the number of SSD patients with elevated pathogen-specific AI compared to the control group. In a subgroup analysis, a significantly higher EBV AI was observed in the group of patients with chronic SSD compared to patients with first-time SSD diagnosis (p = 0.003). In addition, two identified outlier EBV patients showed evidence for polyspecific immune reactions (with more than one increased AI). Conclusions Evidence for the role of intrathecal EBV antibody synthesis was found in patients with chronic SSD compared to those first diagnosed. Apart from a possible infectious factor in SSD pathophysiology, the evidence for polyspecific immune response in outlier patients may also suggest the involvement of further immunological processes in a small subgroup of SSD patients. Supplementary Information The online version contains supplementary material available at 10.1186/s12987-022-00355-7.
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Affiliation(s)
- Kimon Runge
- Department of Psychiatry and Psychotherapy, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Agnes Balla
- Department of Psychiatry and Psychotherapy, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Bernd L Fiebich
- Department of Psychiatry and Psychotherapy, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Simon J Maier
- Department of Psychiatry and Psychotherapy, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Benjamin Pankratz
- Department of Psychiatry and Psychotherapy, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Andrea Schlump
- Department of Psychiatry and Psychotherapy, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Kathrin Nickel
- Department of Psychiatry and Psychotherapy, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Rick Dersch
- Clinic of Neurology and Neurophysiology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Katharina Domschke
- Department of Psychiatry and Psychotherapy, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Center for Basics in Neuromodulation, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Ludger Tebartz van Elst
- Department of Psychiatry and Psychotherapy, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Dominique Endres
- Department of Psychiatry and Psychotherapy, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
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Hikosaka M, Kawano T, Wada Y, Maeda T, Sakurai T, Ohtsuki G. Immune-Triggered Forms of Plasticity Across Brain Regions. Front Cell Neurosci 2022; 16:925493. [PMID: 35978857 PMCID: PMC9376917 DOI: 10.3389/fncel.2022.925493] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 06/16/2022] [Indexed: 01/03/2023] Open
Abstract
Immune cells play numerous roles in the host defense against the invasion of microorganisms and pathogens, which induces the release of inflammatory mediators (e.g., cytokines and chemokines). In the CNS, microglia is the major resident immune cell. Recent efforts have revealed the diversity of the cell types and the heterogeneity of their functions. The refinement of the synapse structure was a hallmark feature of the microglia, while they are also involved in the myelination and capillary dynamics. Another promising feature is the modulation of the synaptic transmission as synaptic plasticity and the intrinsic excitability of neurons as non-synaptic plasticity. Those modulations of physiological properties of neurons are considered induced by both transient and chronic exposures to inflammatory mediators, which cause behavioral disorders seen in mental illness. It is plausible for astrocytes and pericytes other than microglia and macrophage to induce the immune-triggered plasticity of neurons. However, current understanding has yet achieved to unveil what inflammatory mediators from what immune cells or glia induce a form of plasticity modulating pre-, post-synaptic functions and intrinsic excitability of neurons. It is still unclear what ion channels and intracellular signaling of what types of neurons in which brain regions of the CNS are involved. In this review, we introduce the ubiquitous modulation of the synaptic efficacy and the intrinsic excitability across the brain by immune cells and related inflammatory cytokines with the mechanism for induction. Specifically, we compare neuro-modulation mechanisms by microglia of the intrinsic excitability of cerebellar Purkinje neurons with cerebral pyramidal neurons, stressing the inverted directionality of the plasticity. We also discuss the suppression and augmentation of the extent of plasticity by inflammatory mediators, as the meta-plasticity by immunity. Lastly, we sum up forms of immune-triggered plasticity in the different brain regions with disease relevance. Together, brain immunity influences our cognition, sense, memory, and behavior via immune-triggered plasticity.
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Ramos-Méndez MA, Tovilla-Zárate CA, Juárez-Rojop IE, Villar-Soto M, Genis-Mendoza AD, González-Castro TB, López-Narváez ML, Martínez-Magaña JJ, Castillo-Avila RG, Villar-Juárez GE. Effect of risperidone on serum IL-6 levels in individuals with schizophrenia: a systematic review and meta-analysis. Int J Psychiatry Clin Pract 2022:1-8. [PMID: 35839173 DOI: 10.1080/13651501.2022.2100264] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
BACKGROUND Risperidone has been significant correlated with a direct effect of interleukin-6 (IL-6) levels in patients with schizophrenia. This fact allows the opportunity to link the probable immunomodulatory effect of antipsychotic medication. Specially, a proper functioning of IL-6 pathway plays a potential role in the treatment or development of schizophrenia. OBJECTIVE Our primary aim was to perform a systematic review and meta-analysis to determine the effect of risperidone on IL-6 levels in individuals with schizophrenia. METHODS Studies were identified through a systematic search using PubMed, Scopus, and Web of Science databases. The articles found were subjected to the inclusion and exclusion criteria; then, the mean and standardised differences were extracted to calculate the standardised mean differences using the CMA software. RESULTS IL-6 levels in individuals with schizophrenia were compared before and after receiving risperidone as treatment. Increased levels of IL-6 levels were observed in individuals with schizophrenia who received risperidone (point estimate 0.249, lower limit 0.042, upper limit 0.455, p-value 0.018). In the Asian population sub-analysis, no statistically significant differences were observed (point estimate 0.103, lower limit -0.187, upper limit 0.215, p value 0.890). When we compared individuals with schizophrenia to the control groups, a significant increase of IL-6 levels was observed in the group with schizophrenia (point estimate 0.248, lower limit 0.024, upper limit 0.472, p-value 0.30). CONCLUSIONS Risperidone appears to play an important role in IL-6 levels in schizophrenia. Potential implications of increased IL-6 levels in people with schizophrenia should be considered in future studies.KEY POINTSIncreased levels of IL-6 levels were observed in individuals with schizophrenia who received risperidone.Risperidone appears to play an important role in IL-6 levels in schizophrenia.This study could serve for future research focussed on IL-6.
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Affiliation(s)
- Miguel Angel Ramos-Méndez
- División Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco, Villahermosa, Mexico
| | | | - Isela Esther Juárez-Rojop
- División Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco, Villahermosa, Mexico
| | - Mario Villar-Soto
- Hospital Regional de Alta Especialidad de Salud Mental, Villahermosa, Mexico
| | - Alma Delia Genis-Mendoza
- Laboratorio de Genómica de Enfermedades Psiquiátricas y Neurodegenerativas, Instituto Nacional de Medicina Genómica, Ciudad de México, Mexico
| | - Thelma Beatriz González-Castro
- División Académica Multidisciplinaria de Jalpa de Méndez, Universidad Juárez Autónoma de Tabasco, Jalpa de Méndez, Mexico
| | - María Lilia López-Narváez
- Hospital Chiapas Nos Une Dr. Gilberto Gómez Maza, Secretaría de Salud de Chiapas, Tuxtla Gutiérrez, Mexico
| | - José Jaime Martínez-Magaña
- Laboratorio de Genómica de Enfermedades Psiquiátricas y Neurodegenerativas, Instituto Nacional de Medicina Genómica, Ciudad de México, Mexico
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12
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Lago SG, Tomasik J, van Rees GF, Rustogi N, Vázquez-Bourgon J, Papiol S, Suarez-Pinilla P, Crespo-Facorro B, Bahn S. Peripheral lymphocyte signaling pathway deficiencies predict treatment response in first-onset drug-naïve schizophrenia. Brain Behav Immun 2022; 103:37-49. [PMID: 35381347 DOI: 10.1016/j.bbi.2022.03.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 03/12/2022] [Accepted: 03/31/2022] [Indexed: 12/29/2022] Open
Abstract
Despite being a major cause of disability worldwide, the pathophysiology of schizophrenia and molecular basis of treatment response heterogeneity continue to be unresolved. Recent evidence suggests that multiple aspects of pathophysiology, including genetic risk factors, converge on key cell signaling pathways and that exploration of peripheral blood cells might represent a practical window into cell signaling alterations in the disease state. We employed multiplexed phospho-specific flow cytometry to examine cell signaling epitope expression in peripheral blood mononuclear cell (PBMC) subtypes in drug-naïve schizophrenia patients (n = 49) relative to controls (n = 61) and relate these changes to serum immune response proteins, schizophrenia polygenic risk scores and clinical effects of treatment, including drug response and side effects, over the longitudinal course of antipsychotic treatment. This revealed both previously characterized (Akt1) and novel cell signaling epitopes (IRF-7 (pS477/pS479), CrkL (pY207), Stat3 (pS727), Stat3 (pY705) and Stat5 (pY694)) across PBMC subtypes which were associated with schizophrenia at disease onset, and correlated with type I interferon-related serum molecules CD40 and CXCL11. Alterations in Akt1 and IRF-7 (pS477/pS479) were additionally associated with polygenic risk of schizophrenia. Finally, changes in Akt1, IRF-7 (pS477/pS479) and Stat3 (pS727) predicted development of metabolic and cardiovascular side effects following antipsychotic treatment, while IRF-7 (pS477/pS479) and Stat3 (pS727) predicted early improvements in general psychopathology scores measured using the Brief Psychiatric Rating Scale (BPRS). These findings suggest that peripheral blood cells can provide an accessible surrogate model for intracellular signaling alterations in schizophrenia and have the potential to stratify subgroups of patients with different clinical outcomes or a greater risk of developing metabolic and cardiovascular side effects following antipsychotic therapy.
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Affiliation(s)
- Santiago G Lago
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, United Kingdom
| | - Jakub Tomasik
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, United Kingdom
| | - Geertje F van Rees
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, United Kingdom
| | - Nitin Rustogi
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, United Kingdom
| | - Javier Vázquez-Bourgon
- Department of Psychiatry, Marqués de Valdecilla University Hospital, IDIVAL, School of Medicine, University of Cantabria, Santander, Spain; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Santander, Spain
| | - Sergi Papiol
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Barcelona, Spain; Institute of Psychiatric Phenomics and Genomics, University Hospital, Ludwig Maximilian University, Munich, Germany; Department of Psychiatry and Psychotherapy, University Hospital, Ludwig Maximilian University, Munich, Germany
| | - Paula Suarez-Pinilla
- Department of Psychiatry, Marqués de Valdecilla University Hospital, IDIVAL, School of Medicine, University of Cantabria, Santander, Spain; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Santander, Spain
| | - Benedicto Crespo-Facorro
- Department of Psychiatry, Marqués de Valdecilla University Hospital, IDIVAL, School of Medicine, University of Cantabria, Santander, Spain; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Santander, Spain; Department of Psychiatry, School of Medicine, University Hospital Virgen del Rocio, IBiS, Sevilla, Spain; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Sevilla, Spain
| | - Sabine Bahn
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, United Kingdom.
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Zheng H, Savitz J. Effect of Cytomegalovirus Infection on the Central Nervous System: Implications for Psychiatric Disorders. Curr Top Behav Neurosci 2022; 61:215-241. [PMID: 35505056 DOI: 10.1007/7854_2022_361] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cytomegalovirus (CMV) is a common herpesvirus that establishes lifelong latent infections and interacts extensively with the host immune system, potentially contributing to immune activation and inflammation. Given its proclivity for infecting the brain and its reactivation by inflammatory stimuli, CMV is well known for causing central nervous system complications in the immune-naïve (e.g., in utero) and in the immunocompromised (e.g., in neonates, individuals receiving transplants or cancer chemotherapy, or people living with HIV). However, its potentially pathogenic role in diseases that are characterized by more subtle immune dysregulation and inflammation such as psychiatric disorders is still a matter of debate. In this chapter, we briefly summarize the pathogenic role of CMV in immune-naïve and immunocompromised populations and then review the evidence (i.e., epidemiological studies, serological studies, postmortem studies, and recent neuroimaging studies) for a link between CMV infection and psychiatric disorders with a focus on mood disorders and schizophrenia. Finally, we discuss the potential mechanisms through which CMV may cause CNS dysfunction in the context of mental disorders and conclude with a summary of the current state of play as well as potential future research directions in this area.
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Affiliation(s)
- Haixia Zheng
- Laureate Institute for Brain Research, Tulsa, OK, USA.
| | - Jonathan Savitz
- Laureate Institute for Brain Research, Tulsa, OK, USA.,Oxley College of Health Sciences, The University of Tulsa, Tulsa, OK, USA
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14
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Yolken RH, Kinnunen PM, Vapalahti O, Dickerson F, Suvisaari J, Chen O, Sabunciyan S. Studying the virome in psychiatric disease. Schizophr Res 2021; 234:78-86. [PMID: 34016507 DOI: 10.1016/j.schres.2021.04.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 04/12/2021] [Accepted: 04/14/2021] [Indexed: 12/12/2022]
Abstract
An overlooked aspect of current microbiome studies is the role of viruses in human health. Compared to bacterial studies, laboratory and analytical methods to study the entirety of viral communities in clinical samples are rudimentary and need further refinement. In order to address this need, we developed Virobiome-Seq, a sequence capture method and an accompanying bioinformatics analysis pipeline, that identifies viral reads in human samples. Virobiome-Seq is able to enrich for and detect multiple types of viruses in human samples, including novel subtypes that diverge at the sequence level. In addition, Virobiome-Seq is able to detect RNA transcripts from DNA viruses and may provide a sensitive method for detecting viral activity in vivo. Since Virobiome-Seq also yields the viral sequence, it makes it possible to investigate associations between viral genotype and psychiatric illness. In this proof of concept study, we detected HIV1, Torque Teno, Pegi, Herpes and Papilloma virus sequences in Peripheral Blood Mononuclear Cells, plasma and stool samples collected from individuals with psychiatric disorders. We also detected the presence of numerous novel circular RNA viruses but were unable to determine whether these viruses originate from the sample or represent contaminants. Despite this challenge, we demonstrate that our knowledge of viral diversity is incomplete and opportunities for novel virus discovery exist. Virobiome-Seq will enable a more sophisticated analysis of the virome and has the potential of uncovering complex interactions between viral activity and psychiatric disease.
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Affiliation(s)
- Robert H Yolken
- Department of Pediatrics, Johns Hopkins University, Baltimore, MD, USA
| | - Paula M Kinnunen
- Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Olli Vapalahti
- Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland; Department of Virology, Faculty of Medicine, University of Helsinki, Helsinki, Finland; HUS Diagnostic Center, HUSLAB, Clinical Microbiology, Helsinki University Hospital, Helsinki, Finland
| | - Faith Dickerson
- Stanley Research Program, Sheppard Pratt, Baltimore, MD, USA
| | - Jaana Suvisaari
- Finnish Institute for Health and Welfare (THL), Helsinki, Finland
| | - Ou Chen
- Department of Pediatrics, Johns Hopkins University, Baltimore, MD, USA
| | - Sarven Sabunciyan
- Department of Pediatrics, Johns Hopkins University, Baltimore, MD, USA.
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15
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Kulaga SS, Miller CWT. Viral respiratory infections and psychosis: A review of the literature and the implications of COVID-19. Neurosci Biobehav Rev 2021; 127:520-530. [PMID: 33992695 PMCID: PMC9616688 DOI: 10.1016/j.neubiorev.2021.05.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 05/08/2021] [Accepted: 05/09/2021] [Indexed: 01/08/2023]
Abstract
The historical association between respiratory infections and neuropsychiatric symptoms dates back centuries, with more recent literature highlighting a link between viral infections and schizophrenia. Maternal influenza infection during pregnancy has been associated with the development of schizophrenia in offspring. Viral infections in neonates, children, and adolescents have also been associated with later development of schizophrenia. Neuroinvasive and/or systemic infections are thought to increase risk for psychopathology via inflammatory mechanisms, particularly when exposure occurs during critical neurodevelopmental windows. Several human coronaviruses (HCoVs) have been associated with psychotic disorders and increasing reports of the neuropsychiatric manifestations of COVID-19 suggest it has neuroinvasive properties similar to those of other HCoVs. These properties, in conjunction with its ability to generate a massive inflammatory response, suggest that COVID-19 may also contribute to future psychopathology. This review will summarize the psychopathogenic mechanisms of viral infections and discuss the neuroinvasive and inflammatory properties of COVID-19 that could contribute to the development of psychotic disorders, with a focus on in utero, neonatal, and childhood exposure.
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Affiliation(s)
- Stephanie S Kulaga
- University of Maryland School of Medicine, 701 W. Pratt St., 4th Floor, Baltimore, MD 21201, United States.
| | - Christopher W T Miller
- University of Maryland School of Medicine, 701 W. Pratt St., 4th Floor, Baltimore, MD 21201, United States
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16
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Jansen van Vuren E, Steyn SF, Brink CB, Möller M, Viljoen FP, Harvey BH. The neuropsychiatric manifestations of COVID-19: Interactions with psychiatric illness and pharmacological treatment. Biomed Pharmacother 2021; 135:111200. [PMID: 33421734 PMCID: PMC7834135 DOI: 10.1016/j.biopha.2020.111200] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/15/2020] [Accepted: 12/26/2020] [Indexed: 12/12/2022] Open
Abstract
The recent outbreak of the corona virus disease (COVID-19) has had major global impact. The relationship between severe acute respiratory syndrome coronavirus (SARS-CoV-2) infection and psychiatric diseases is of great concern, with an evident link between corona virus infections and various central and peripheral nervous system manifestations. Unmitigated neuro-inflammation has been noted to underlie not only the severe respiratory complications of the disease but is also present in a range of neuro-psychiatric illnesses. Several neurological and psychiatric disorders are characterized by immune-inflammatory states, while treatments for these disorders have distinct anti-inflammatory properties and effects. With inflammation being a common contributing factor in SARS-CoV-2, as well as psychiatric disorders, treatment of either condition may affect disease progression of the other or alter response to pharmacological treatment. In this review, we elucidate how viral infections could affect pre-existing psychiatric conditions and how pharmacological treatments of these conditions may affect overall progress and outcome in the treatment of SARS-CoV-2. We address whether any treatment-induced benefits and potential adverse effects may ultimately affect the overall treatment approach, considering the underlying dysregulated neuro-inflammatory processes and potential drug interactions. Finally, we suggest adjunctive treatment options for SARS-CoV-2-associated neuro-psychiatric symptoms.
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Affiliation(s)
- Esmé Jansen van Vuren
- Centre of Excellence for Pharmaceutical Sciences, Faculty of Health Sciences, North-West University, Potchefstroom, South Africa.
| | - Stephan F Steyn
- Centre of Excellence for Pharmaceutical Sciences, Faculty of Health Sciences, North-West University, Potchefstroom, South Africa
| | - Christiaan B Brink
- Centre of Excellence for Pharmaceutical Sciences, Faculty of Health Sciences, North-West University, Potchefstroom, South Africa
| | - Marisa Möller
- Centre of Excellence for Pharmaceutical Sciences, Faculty of Health Sciences, North-West University, Potchefstroom, South Africa
| | - Francois P Viljoen
- Centre of Excellence for Pharmaceutical Sciences, Faculty of Health Sciences, North-West University, Potchefstroom, South Africa
| | - Brian H Harvey
- Centre of Excellence for Pharmaceutical Sciences, Faculty of Health Sciences, North-West University, Potchefstroom, South Africa; South African MRC Unit on Risk and Resilience in Mental Disorders, Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa.
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17
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Segawa K, Blumenthal Y, Yamawaki Y, Ohtsuki G. A Destruction Model of the Vascular and Lymphatic Systems in the Emergence of Psychiatric Symptoms. BIOLOGY 2021; 10:34. [PMID: 33419067 PMCID: PMC7825436 DOI: 10.3390/biology10010034] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/24/2020] [Accepted: 12/31/2020] [Indexed: 01/02/2023]
Abstract
The lymphatic system is important for antigen presentation and immune surveillance. The lymphatic system in the brain was originally introduced by Giovanni Mascagni in 1787, while the rediscovery of it by Jonathan Kipnis and Kari Kustaa Alitalo now opens the door for a new interpretation of neurological diseases and therapeutic applications. The glymphatic system for the exchanges of cerebrospinal fluid (CSF) and interstitial fluid (ISF) is associated with the blood-brain barrier (BBB), which is involved in the maintenance of immune privilege and homeostasis in the brain. Recent notions from studies of postmortem brains and clinical studies of neurodegenerative diseases, infection, and cerebral hemorrhage, implied that the breakdown of those barrier systems and infiltration of activated immune cells disrupt the function of both neurons and glia in the parenchyma (e.g., modulation of neurophysiological properties and maturation of myelination), which causes the abnormality in the functional connectivity of the entire brain network. Due to the vulnerability, such dysfunction may occur in developing brains as well as in senile or neurodegenerative diseases and may raise the risk of emergence of psychosis symptoms. Here, we introduce this hypothesis with a series of studies and cellular mechanisms.
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Affiliation(s)
- Kohei Segawa
- Department of Drug Discovery Medicine, Kyoto University Graduate School of Medicine, Kyoto 606-8397, Japan; (K.S.); (Y.Y.)
| | - Yukari Blumenthal
- Urology Department at Cambridge University Hospitals, NHS Foundation Trust, Addenbrooke’s Hospital, Hills Road Cambridge, Cambridge CB2 0QQ, UK;
| | - Yuki Yamawaki
- Department of Drug Discovery Medicine, Kyoto University Graduate School of Medicine, Kyoto 606-8397, Japan; (K.S.); (Y.Y.)
| | - Gen Ohtsuki
- Department of Drug Discovery Medicine, Kyoto University Graduate School of Medicine, Kyoto 606-8397, Japan; (K.S.); (Y.Y.)
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18
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Ng QX, Yeo WS, Lim DY, Chee KT. Re-examining the Association Between COVID-19 and Psychosis. PSYCHOSOMATICS 2020; 61:853-855. [PMID: 32682504 PMCID: PMC7308742 DOI: 10.1016/j.psym.2020.06.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 06/17/2020] [Indexed: 11/23/2022]
Affiliation(s)
- Qin Xiang Ng
- MOH Holdings Pte Ltd., Singapore, Singapore; Institute of Mental Health, Buangkok Green Medical Park, Singapore, Singapore.
| | | | - Donovan Yutong Lim
- Institute of Mental Health, Buangkok Green Medical Park, Singapore, Singapore
| | - Kuan Tsee Chee
- Institute of Mental Health, Buangkok Green Medical Park, Singapore, Singapore
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19
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Mason BL. Mapping Immune System Dysfunction to Provide Clinically Actionable Biomarkers and to Understand Psychiatric Pathology. Psychiatr Ann 2020. [DOI: 10.3928/00485713-20200506-01] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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20
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Okazaki S, Numata S, Otsuka I, Horai T, Kinoshita M, Sora I, Ohmori T, Hishimoto A. Decelerated epigenetic aging associated with mood stabilizers in the blood of patients with bipolar disorder. Transl Psychiatry 2020; 10:129. [PMID: 32366819 PMCID: PMC7198548 DOI: 10.1038/s41398-020-0813-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 04/15/2020] [Accepted: 04/21/2020] [Indexed: 02/07/2023] Open
Abstract
There is high mortality among patients with bipolar disorder (BD). Studies have reported accelerated biological aging in patients with BD. Recently, Horvath and Hannum et al. independently developed DNA methylation (DNAm) profiles as "epigenetic clocks," which are the most accurate biological age estimate. This led to the development of two accomplished measures of epigenetic age acceleration (EAA) using blood samples, namely, intrinsic and extrinsic EAA (IEAA and EEAA, respectively). IEAA, which is based on Horvath's clock, is independent of blood cell counts and indicates cell-intrinsic aging. On the other hand, EEAA, which is based on Hannum's clock, is associated with age-dependent changes in blood cell counts and indicates immune system aging. Further, Lu et al. developed the "GrimAge" clock, which can strongly predict the mortality risk, and DNAm-based telomere length (DNAmTL). We used a DNAm dataset from whole blood samples obtained from 30 patients with BD and 30 healthy controls. We investigated Horvath EAA, IEAA, Hannum EAA, EEAA, Grim EAA, DNAmTL, and DNAm-based blood cell composition. Compared with controls, there was a decrease in Horvath EAA and IEAA in patients with BD. Further, there was a significant decrease in Horvath EAA and IEAA in patients with BD taking medication combinations of mood stabilizers (including lithium carbonate, sodium valproate, and carbamazepine) than in those taking no medication/monotherapy. This study provides novel evidence indicating decelerated epigenetic aging associated with mood stabilizers in patients with BD.
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Affiliation(s)
- Satoshi Okazaki
- grid.31432.370000 0001 1092 3077Department of Psychiatry, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shusuke Numata
- grid.267335.60000 0001 1092 3579Department of Psychiatry, Graduate School of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Ikuo Otsuka
- grid.31432.370000 0001 1092 3077Department of Psychiatry, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Tadasu Horai
- grid.31432.370000 0001 1092 3077Department of Psychiatry, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Makoto Kinoshita
- grid.267335.60000 0001 1092 3579Department of Psychiatry, Graduate School of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Ichiro Sora
- grid.31432.370000 0001 1092 3077Department of Psychiatry, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Tetsuro Ohmori
- grid.267335.60000 0001 1092 3579Department of Psychiatry, Graduate School of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Akitoyo Hishimoto
- Department of Psychiatry, Kobe University Graduate School of Medicine, Kobe, Japan.
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21
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Th17 and MAIT cell mediated inflammation in antipsychotic free schizophrenia patients. Schizophr Res 2019; 212:47-53. [PMID: 31439420 DOI: 10.1016/j.schres.2019.08.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 07/29/2019] [Accepted: 08/05/2019] [Indexed: 12/11/2022]
Abstract
The immune hypothesis of schizophrenia has gained significant popularity in recent years in schizophrenia research. Evidence suggests that the peripheral immune system communicates with central nervous system and the effect propagates through microglial and lymphocyte crosstalk, especially during neuro-inflammation. Although, there is previous literature indicating changes in lymphocyte population in schizophrenia, detailed studies with respect to T and B cells are scarce. Mucosal associated invariant T (MAIT) cells are functionally associated with the gut microbiome. The gut microbiome has been implicated in the pathogenesis of schizophrenia. However, there is no information on the frequency of MAIT cells in schizophrenia. Hence, we investigated changes in proportions of T cells, B cells and MAIT cells in peripheral blood mononuclear cells derived from antipsychotic-free patients with schizophrenia in comparison to healthy controls. In line with earlier reports, we noted perturbations in Th17 cells. This study for the first time reports changes in frequencies of MAIT cells in a homogenous population of antipsychotic-free patients with schizophrenia. These changes, though not common across all patients nevertheless point to the fact that inflammation is prevalent in a significant subset of schizophrenia cases.
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22
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Olcina Rodríguez JF, Díaz Fernández J, Orta Mira N, López-Briz E, Gómez-Pajares F. Neutrophil/lymphocyte ratio: Can a non-specific marker of inflammation helps to confirm the inflammatory hypothesis of the serious mental diseases? A case-control study. Med Hypotheses 2019; 130:109279. [PMID: 31383340 DOI: 10.1016/j.mehy.2019.109279] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 06/08/2019] [Accepted: 06/11/2019] [Indexed: 01/14/2023]
Abstract
BACKGROUND The hypotheses of autoimmune, allergic or infectious etiology of severe mental illness have been reported in the scientific literature repeatedly. The main objective of this work is to study the relationship of inflammatory, autoimmunity or recent infection markers with the fact of suffering Severe Mental Disorders (SMD). METHODS In the present case-control study, adult patients with a diagnosis of SMD were compared with controls who underwent routine health checks that included analytical control. Cases with psychosis substance-induced and controls with diagnosis of any psychiatric illness were excluded. In both groups, patients with chronic inflammatory diseases or intercurrent infectious disease were also excluded. A set of common analytical parameters, markers of infectious diseases and inflammatory markers were retrieved for both groups, as well as demographic and clinical data. RESULTS A total of 212 subjects (81 cases and 131 controls) were recruited. From cases, 70 (86.4%) have a diagnosis of Schizophrenia Disease (SD) and 11 (13.6%) of Schizoaffective Disorder (SAD). In the multivariate model the female sex (OR 0.24, 95% CI 0.12-0.46) and the neutrophil-lymphocyte ratio (OR 3.00, 95% CI 1.91-4.70) were associated with the fact of being case. CONCLUSIONS Patients with SMD seem to have higher inflammatory markers compared to the general population, being the neutrophil-lymphocyte ratio, the marker associated with more strength. The role of inflammatory processes in the etiology of this type of disorders, if confirmed, opens interesting and innovative therapeutic possibilities.
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Affiliation(s)
| | - J Díaz Fernández
- Clinical Analysis Service, University Hospital Francesc de Borja, Gandia, Valencia, Spain
| | - Nieves Orta Mira
- Microbiology Section, University Hospital Francesc de Borja, Gandía, Valencia, Spain
| | - E López-Briz
- Pharmacy Department, University and Polytechnic Hospital La Fe, Valencia, Spain.
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23
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Peripheral blood lymphocyte subpopulations in patients with bipolar disorder type II. Sci Rep 2019; 9:5869. [PMID: 30971748 PMCID: PMC6458153 DOI: 10.1038/s41598-019-42482-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 04/02/2019] [Indexed: 12/17/2022] Open
Abstract
We investigated the phenotype of peripheral blood lymphocytes of patients with bipolar disorder type II in different phases of the disease in order to check whether there are specific changes in the immune parameters. Lymphocytes subpopulations were analyzed ex vivo with flow cytometry in patients in euthymic, depression or hypomanic phase of the disease and compared with healthy controls. All BD patients were characterized by lower percentage of CD3+CD4+ and CD3+CD8+ cells compared with healthy people. But only patients in depression and remission had higher percentage of B cells (CD19+ cells) compared with healthy people. The percentage of CD4+CD25+ and CD8+CD25+ cells was decreased in patients in hypomanic phase compared with healthy control. Patients in remission were characterized by increased concentrations of IL-6 and IL-10 and decreased level of TNF in blood serum. Significant correlations between immunologic parameters and the results of Hamilton or Young scale have also been found. Our results demonstrate that there are significant differences in lymphocyte subpopulations which depend on the phase of the disease the patient is currently in.
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24
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Sun Q, Yue Q, Zhu F, Shu K. The Identification research of bipolar disorder based on CNN. ACTA ACUST UNITED AC 2019. [DOI: 10.1088/1742-6596/1168/3/032125] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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25
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Malashenkova IK, Krynskiy SA, Ogurtsov DP, Mamoshina MV, Zakharova NV, Ushakov VL, Velichkovsky BM, Didkovsky NA. [A role of the immune system in the pathogenesis of schizophrenia]. Zh Nevrol Psikhiatr Im S S Korsakova 2019; 118:72-80. [PMID: 30698566 DOI: 10.17116/jnevro201811812172] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The review addresses immunological aspects of schizophrenia, a multifactor disease caused by genetic factors, innate disorders of the central nervous system (CNS), including the consequences of perinatal hypoxia and infections, and adverse environmental influences. Neuroinflammation as a part of the pathophysiology of schizophrenia is characterized by the higher transcription of CNS inflammatory mediators, excessive activation of microglia, inhibition of glutamatergic receptors that leads to the decrease in the number of cortical synapses and neuronal apoptosis. The authors discuss a role of genetic polymorphisms of cytokine genes, complement system components etc. The literature data on the changes in systemic immune response and imbalance in Th1/Th2 adaptive immune responses are analyzed as well. Some papers showed higher levels of proinflammatory mediators in CSF and blood of patients with schizophrenia that indicated the involvement of blood brain barrier (BBB) dysfunction. The authors present the recent data on BBB dysfunction in schizophrenia and its role in the pathogenesis of the disease, autoimmunity in patients comparing it with immune activation and genetic predisposition. An important and arguable issues about a role of parasite and viral infections in the pathogenesis of schizophrenia, initiation of immune responses and direct impacts on the brain, an influence of antipsychotic treatment on immunity are discussed. In author's opinion, conflicting results of genetic and immunological studies of schizophrenia may be explained by different methodological approaches to selection of patients and healthy controls and the differences in schizophrenia classification.
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Affiliation(s)
- I K Malashenkova
- Research Center 'Kurchatov Institute', Moscow, Russia; Federal Research and Clinical Center of Physical-Chemical Medicine, Moscow
| | - S A Krynskiy
- Research Center 'Kurchatov Institute', Moscow, Russia; Federal Research and Clinical Center of Physical-Chemical Medicine, Moscow
| | - D P Ogurtsov
- Research Center 'Kurchatov Institute', Moscow, Russia; Federal Research and Clinical Center of Physical-Chemical Medicine, Moscow
| | - M V Mamoshina
- Research Center 'Kurchatov Institute', Moscow, Russia
| | - N V Zakharova
- Russia; Alekseev Psychiatric Clinical Hospital #1, Moscow, Russia ,Pirogov Russian National Research Medical University, Moscow, Russia
| | - V L Ushakov
- Research Center 'Kurchatov Institute', Moscow, Russia
| | | | - N A Didkovsky
- Federal Research and Clinical Center of Physical-Chemical Medicine, Moscow
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Magioncalda P, Martino M, Tardito S, Sterlini B, Conio B, Marozzi V, Adavastro G, Capobianco L, Russo D, Parodi A, Kalli F, Nasi G, Altosole T, Piaggio N, Northoff G, Fenoglio D, Inglese M, Filaci G, Amore M. White matter microstructure alterations correlate with terminally differentiated CD8+ effector T cell depletion in the peripheral blood in mania: Combined DTI and immunological investigation in the different phases of bipolar disorder. Brain Behav Immun 2018; 73:192-204. [PMID: 29723656 DOI: 10.1016/j.bbi.2018.04.017] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 04/23/2018] [Accepted: 04/26/2018] [Indexed: 10/17/2022] Open
Abstract
BACKGROUND White matter (WM) microstructural abnormalities and, independently, signs of immunological activation were consistently demonstrated in bipolar disorder (BD). However, the relationship between WM and immunological alterations as well as their occurrence in the various phases of BD remain unclear. METHOD In 60 type I BD patients - 20 in manic, 20 in depressive, 20 in euthymic phases - and 20 controls we investigated: (i) diffusion tensor imaging (DTI)-derived fractional anisotropy (FA), radial diffusivity (RD) and axial diffusivity (AD) using a tract-based spatial statistics (TBSS) approach; (ii) circulating T cell subpopulations frequencies, as well as plasma levels of different cytokines; (iii) potential relationships between WM and immunological data. RESULTS We found: (i) a significant widespread combined FA-RD alteration mainly in mania, with involvement of the body of corpus callosum (BCC) and superior corona radiata (SCR); (ii) significant increase in CD4+ T cells as well as significant decrease in CD8+ T cells and their subpopulations effector memory (CD8+ CD28-CD45RA-), terminal effector memory (CD8+ CD28-CD45RA+) and CD8+ IFNγ+ in mania; (iii) a significant relationship between WM and immunological alterations in the whole cohort, and a significant correlation of FA-RD abnormalities in the BCC and SCR with reduced frequencies of CD8+ terminal effector memory and CD8+ IFNγ+ T cells in mania only. CONCLUSIONS Our data show a combined occurrence of WM and immunological alterations in mania. WM abnormalities highly correlated with reduction in circulating CD8+ T cell subpopulations that are terminally differentiated effector cells prone to tissue migration, suggesting that these T cells could play a role in WM alteration in BD.
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Affiliation(s)
- Paola Magioncalda
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, Section of Psychiatry, University of Genoa, Genoa, Italy; IRCCS Ospedale Policlinico San Martino, Genoa, Italy.
| | - Matteo Martino
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, Section of Psychiatry, University of Genoa, Genoa, Italy; IRCCS Ospedale Policlinico San Martino, Genoa, Italy.
| | - Samuele Tardito
- Centre of Excellence for Biomedical Research, University of Genoa, Genoa, Italy.
| | - Bruno Sterlini
- Department of Experimental Medicine, University of Genoa, Genoa, Italy; Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genoa, Italy.
| | - Benedetta Conio
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, Section of Psychiatry, University of Genoa, Genoa, Italy; IRCCS Ospedale Policlinico San Martino, Genoa, Italy.
| | - Valentina Marozzi
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, Section of Psychiatry, University of Genoa, Genoa, Italy; IRCCS Ospedale Policlinico San Martino, Genoa, Italy.
| | - Giulia Adavastro
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, Section of Psychiatry, University of Genoa, Genoa, Italy; IRCCS Ospedale Policlinico San Martino, Genoa, Italy.
| | - Laura Capobianco
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, Section of Psychiatry, University of Genoa, Genoa, Italy; IRCCS Ospedale Policlinico San Martino, Genoa, Italy.
| | - Daniel Russo
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, Section of Psychiatry, University of Genoa, Genoa, Italy; IRCCS Ospedale Policlinico San Martino, Genoa, Italy.
| | - Alessia Parodi
- Centre of Excellence for Biomedical Research, University of Genoa, Genoa, Italy.
| | - Francesca Kalli
- Centre of Excellence for Biomedical Research, University of Genoa, Genoa, Italy.
| | - Giorgia Nasi
- Centre of Excellence for Biomedical Research, University of Genoa, Genoa, Italy.
| | - Tiziana Altosole
- Centre of Excellence for Biomedical Research, University of Genoa, Genoa, Italy.
| | - Niccolò Piaggio
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, Section of Neurology, University of Genoa, Genoa, Italy.
| | - Georg Northoff
- University of Ottawa Brain and Mind Research Institute, and Mind Brain Imaging and Neuroethics Royal's Institute of Mental Health Research, University of Ottawa, Ottawa, Canada; Centre for Cognition and Brain Disorders, Hangzhou Normal University, Hangzhou, China; TMU Research Center for Brain and Consciousness, Taipei, Taiwan.
| | - Daniela Fenoglio
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy; Centre of Excellence for Biomedical Research, University of Genoa, Genoa, Italy; Department of Internal Medicine, University of Genoa, Genoa, Italy.
| | - Matilde Inglese
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy; Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, Section of Neurology, University of Genoa, Genoa, Italy; Department of Neurology, Radiology and Neuroscience, Icahn School of Medicine at Mount Sinai, NY, USA.
| | - Gilberto Filaci
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy; Centre of Excellence for Biomedical Research, University of Genoa, Genoa, Italy; Department of Internal Medicine, University of Genoa, Genoa, Italy.
| | - Mario Amore
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, Section of Psychiatry, University of Genoa, Genoa, Italy; IRCCS Ospedale Policlinico San Martino, Genoa, Italy.
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Deshpande SN, Nimgaonkar VL. Exploring the associations of herpes simplex virus infection and cognitive dysfunction in schizophrenia: Studies in India. Indian J Psychiatry 2018; 60:393-397. [PMID: 30581203 PMCID: PMC6278214 DOI: 10.4103/psychiatry.indianjpsychiatry_381_18] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Cognitive dysfunctions being core features of schizophrenia (SZ), cause disability, increase burden and are refractory to treatment. Viral infections are not risk factors for SZ, but growing evidence indicates infection with some neurotropic viruses, particularly Herpes simplex virus type 1 (HSV -1) as a risk factor for cognitive dysfunction. STUDIES IN INDIA Three research studies in India are described. In the first, participants were evaluated for HSV-1 infection and cognitive functions (cases 198 and controls 100). In the second, patients and normal nonpsychotic control individuals were examined at baseline and followed up over 1-3 years (cases 138 and controls 88). In the third, a randomized, double-blind placebo-controlled antipsychotic adjunctive trial was conducted to examine the effect of anti-viral drug valacyclovir over 16 weeks on cognitive functioning (valacyclovir 30; placebo 32, treatment for 16 weeks). RESULTS OF INDIAN STUDIES Cross-sectional study: HSV-1 infection was associated with modest dysfunction, especially on attention (accuracy) and spatial processing (speed). LONGITUDINAL STUDY HSV-1 seropositive participants had lower scores at baseline on 6/16 measures, regardless of SZ diagnoses. At follow-up, there was a significant decline in HSV-1-positive participants for abstraction and mental flexibility and emotion discrimination. RANDOMIZED CONTROLLED TRIAL Significantly, greater improvement in accuracy index of emotion discrimination in the valacyclovir-treated versus placebo sample was found. CONCLUSIONS Indian studies are consistent with a causative role for HSV-1 in cognitive dysfunction regardless of SZ diagnosis; more rigorous studies of the causal hypothesis are needed, particularly larger randomized controlled trials.
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Affiliation(s)
| | - Vishwajit Laxmikant Nimgaonkar
- Department of Psychiatry and Genetics, School of Medicine, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
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Abstract
This paper discusses the current evidence from animal and human studies for a central role of inflammation in schizophrenia. In animal models, pre- or perinatal elicitation of the immune response may increase immune reactivity throughout life, and similar findings have been described in humans. Levels of pro-inflammatory markers, such as cytokines, have been found to be increased in the blood and cerebrospinal fluid of patients with schizophrenia. Numerous epidemiological and clinical studies have provided evidence that various infectious agents are risk factors for schizophrenia and other psychoses. For example, a large-scale epidemiological study performed in Denmark clearly showed that severe infections and autoimmune disorders are such risk factors. The vulnerability-stress-inflammation model may help to explain the role of inflammation in schizophrenia because stress can increase pro-inflammatory cytokines and may even contribute to a chronic pro-inflammatory state. Schizophrenia is characterized by risk genes that promote inflammation and by environmental stress factors and alterations of the immune system. Typical alterations of dopaminergic, serotonergic, noradrenergic, and glutamatergic neurotransmission described in schizophrenia have also been found in low-level neuroinflammation and consequently may be key factors in the generation of schizophrenia symptoms. Further support for the relevance of a low-level neuroinflammatory process in schizophrenia is provided by the loss of central nervous system volume and microglial activation demonstrated in neuroimaging studies. Last but not least, the benefit of anti-inflammatory medications found in some studies and the intrinsic anti-inflammatory and immunomodulatory effects of antipsychotics provide further support for the role of inflammation in this debilitating disease.
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Affiliation(s)
- Norbert Müller
- Department of Psychiatry and Psychotherapy Ludwig Maximilian University and Marion von Tessin Memory Center, Munich, Germany
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Hamdani N, Bengoufa D, Godin O, Doukhan R, Le Guen E, Daban-Huard C, Bennabi M, Delavest M, Lépine JP, Boukouaci W, Laouamri H, Houenou J, Jamain S, Richard JR, Lecorvosier P, Yolken R, Rajagopal K, Leboyer M, Tamouza R. Immunoglobulin sub-class distribution in bipolar disorder and schizophrenia: potential relationship with latent Toxoplasma Gondii infection. BMC Psychiatry 2018; 18:239. [PMID: 30053866 PMCID: PMC6062947 DOI: 10.1186/s12888-018-1821-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 07/17/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Immune dysfunction could play a significant role in the pathogenesis of bipolar disorder (BD) and schizophrenia (SZ), conditions with an underlying pro-inflammatory state. Studies on humoral immune responses (which reflects antibody mediated fight against pathogens) in schizophrenia and bipolar disorder are sparse and often providing contradictory results. The aim of this study was to assess humoral immunity in a group of stable bipolar disorder and schizophrenia patients compared to controls by determining total Immunoglobulins and IgG subclasses and to assess their association with latent Toxoplasma gondii and/or CMV infection. METHODS 334 subjects (124 BD, 75 SZ and 135 Healthy Controls [HC]) were included and tested for humoral immunity by determining the total immunoglobulins (IgG,A and M) and IgG subclasses (IgG1, IgG2, IgG3, IgG4) and their relationship with latent Toxoplasma gondii infection, an established risk factor for BD and SZ. RESULTS Although lower levels of IgG, IgG1, IgG2, IgG4 and IgA were found among BD as compared to HC and/or SZ, after adjustment for confounding variables, only low levels of IgG and IgG1 in BD remai- ned significant. Strikingly highest levels of antibodies to T. gondii (but not CMV) infection in BD and SZ were associated with lowest levels of IgG3 and IgG4 levels as compared to controls. CONCLUSIONS Schizophrenia and bipolar disorder patients with latent T. gondii specific infection may be more vulnerable to changes in immuno-inflammatory processes than controls with similar latent infectious state. Simultaneous sequential immunological monitoring both in steady state and active disease phases in the same BD and SZ patients are warranted to understand the role of Toxoplasma gondii latency in these disorders.
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Affiliation(s)
- Nora Hamdani
- Inserm U955, Team 15 «Genetic Psychiatry », F-94000, Creteil, France. .,AP-HP, DHU Pe-PSY, Paris Est Créteil University, Henri Mondor - Albert Chenevier, Group, psyChiatry, F-94000, Creteil, France. .,Fondation Fondamental, Scientific Cooperation Foundation, F-94010, Creteil, France.
| | - Djaouida Bengoufa
- 0000 0001 2217 0017grid.7452.4Jean Dausset Laboratory, LabEx Transplantex & INSERM, UMRS 1160 Saint Louis Hospital, Paris Diderot University, F75010 Paris, France
| | - Ophélia Godin
- 0000 0004 0386 3258grid.462410.5Inserm U955, Team 15 «Genetic Psychiatry », F-94000 Creteil, France ,grid.484137.dFondation Fondamental, Scientific Cooperation Foundation, F-94010 Creteil, France
| | - Raphaël Doukhan
- AP-HP, DHU Pe-PSY, Paris Est Créteil University, Henri Mondor - Albert Chenevier, Group, psyChiatry, F-94000 Creteil, France
| | - Emmanuel Le Guen
- 0000 0004 0386 3258grid.462410.5Inserm U955, Team 15 «Genetic Psychiatry », F-94000 Creteil, France ,AP-HP, DHU Pe-PSY, Paris Est Créteil University, Henri Mondor - Albert Chenevier, Group, psyChiatry, F-94000 Creteil, France
| | - Claire Daban-Huard
- 0000 0004 0386 3258grid.462410.5Inserm U955, Team 15 «Genetic Psychiatry », F-94000 Creteil, France ,AP-HP, DHU Pe-PSY, Paris Est Créteil University, Henri Mondor - Albert Chenevier, Group, psyChiatry, F-94000 Creteil, France ,grid.484137.dFondation Fondamental, Scientific Cooperation Foundation, F-94010 Creteil, France
| | - Meriem Bennabi
- 0000 0001 2217 0017grid.7452.4Jean Dausset Laboratory, LabEx Transplantex & INSERM, UMRS 1160 Saint Louis Hospital, Paris Diderot University, F75010 Paris, France
| | - Marine Delavest
- AP-HP, Paris Diderot University, Psychiatry, Lariboisiere Fernand Widal Hospital, F-75010 Paris, France
| | - Jean-Pierre Lépine
- AP-HP, Paris Diderot University, Psychiatry, Lariboisiere Fernand Widal Hospital, F-75010 Paris, France
| | - Wahid Boukouaci
- 0000 0001 2217 0017grid.7452.4Jean Dausset Laboratory, LabEx Transplantex & INSERM, UMRS 1160 Saint Louis Hospital, Paris Diderot University, F75010 Paris, France
| | - Hakim Laouamri
- grid.484137.dFondation Fondamental, Scientific Cooperation Foundation, F-94010 Creteil, France
| | - Josselin Houenou
- 0000 0004 0386 3258grid.462410.5Inserm U955, Team 15 «Genetic Psychiatry », F-94000 Creteil, France ,AP-HP, DHU Pe-PSY, Paris Est Créteil University, Henri Mondor - Albert Chenevier, Group, psyChiatry, F-94000 Creteil, France ,grid.484137.dFondation Fondamental, Scientific Cooperation Foundation, F-94010 Creteil, France ,grid.457334.2CEA Saclay, Neurospin, Gif-Sur-Yvette, France
| | - Stéphane Jamain
- 0000 0004 0386 3258grid.462410.5Inserm U955, Team 15 «Genetic Psychiatry », F-94000 Creteil, France ,grid.484137.dFondation Fondamental, Scientific Cooperation Foundation, F-94010 Creteil, France
| | - Jean-Romain Richard
- 0000 0004 0386 3258grid.462410.5Inserm U955, Team 15 «Genetic Psychiatry », F-94000 Creteil, France ,grid.484137.dFondation Fondamental, Scientific Cooperation Foundation, F-94010 Creteil, France
| | - Philippe Lecorvosier
- 0000 0001 2175 4109grid.50550.35CIC 006Henri Mondor INSERM & Biological Resource Platform, Paris Est University, AP-HP, Creteil, France
| | - Robert Yolken
- 0000 0004 0442 9875grid.411940.9Stanley Laboratory of Developmental Neurovirology, Johns Hopkins University Medical Center, Baltimore, USA
| | | | - Marion Leboyer
- 0000 0004 0386 3258grid.462410.5Inserm U955, Team 15 «Genetic Psychiatry », F-94000 Creteil, France ,AP-HP, DHU Pe-PSY, Paris Est Créteil University, Henri Mondor - Albert Chenevier, Group, psyChiatry, F-94000 Creteil, France ,grid.484137.dFondation Fondamental, Scientific Cooperation Foundation, F-94010 Creteil, France
| | - Ryad Tamouza
- grid.484137.dFondation Fondamental, Scientific Cooperation Foundation, F-94010 Creteil, France ,0000 0001 2217 0017grid.7452.4Jean Dausset Laboratory, LabEx Transplantex & INSERM, UMRS 1160 Saint Louis Hospital, Paris Diderot University, F75010 Paris, France
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Lockhart KL, Keil FC. I. INTRODUCTION: UNDERSTANDING MEDICINES AND MEDICAL INTERVENTIONS. Monogr Soc Res Child Dev 2018; 83:7-32. [PMID: 29668058 PMCID: PMC5912670 DOI: 10.1111/mono.12361] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
We live in an increasingly pharmacological and medical world, where children and adults frequently encounter alleged treatments for an enormous range of illnesses. How do we come to understand what heals and why? Here, 15 studies explore how 1,414 children (ages 5-11) and 882 adults construe the efficacies of different kinds of cures. Developmental patterns in folk physics, psychology, and biology lead to predictions about which expectations about cures will remain relatively constant across development and which will change. With respect to stability, we find that even young school children (ages 5-7) distinguish between physical and psychological disorders and the treatments most effective for each. In contrast, young children reason differently about temporal properties associated with cures. They often judge that dramatic departures from prescribed schedules will continue to be effective. Young children are also less likely than older ages to differentiate between the treatment needs of acute versus chronic disorders. Young children see medicines as agent-like entities that migrate only to afflicted regions while having "cure-all" properties, views that help explain their difficulties grasping side effects. They also differ from older children and adults by judging pain and effort as reducing, instead of enhancing, a treatment's power. Finally, across all studies, optimism about treatment efficacy declines with age. Taken together, these studies show major developmental changes in how children envision the ways medicines work in the body. Moreover, these findings link to broader patterns in cognitive development and have implications for how medicines should be explained to children.
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Gurung J, Chamlagai D, Bera NK, Chaudhuri TK, Singh B. Elevated levels of C-reactive protein and IL-6 among the antipsychotic medicating schizophrenia patients of Siliguri, West Bengal, India. Nord J Psychiatry 2018; 72:311-317. [PMID: 29464976 DOI: 10.1080/08039488.2018.1441438] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
PURPOSE Chronic, low-grade inflammation is a proposed etiological factor associated with schizophrenia. Thus, various studies have been conducted to understand the role of inflammatory process in schizophrenia by using inflammatory maker C-reactive protein (CRP) with conflicting findings. Inadvertently, studies of CRP among the Indian schizophrenia patients are very few. Therefore, the present study was undertaken to investigate the role of inflammatory process among Indian Bengalee schizophrenia patients of Siliguri, using the marker CRP and its stimulating cytokine interleukin-6 (IL-6). In addition, the study also intended to investigate the immunomodulatory effect of antipsychotic medication on serum levels of CRP and IL-6. MATERIALS AND METHODS The serum levels of CRP and IL-6 were measured by Enzyme-Linked Immunosorbent Assay (ELISA) among 67 antipsychotic medicating, 28 psychotropic medication-free schizophrenia patients, and it was compared with 72 age, sex and ethnicity-matched controls. RESULTS A significantly higher level of CRP and IL-6 were recorded among the antipsychotic medicating patients. Although CRP was found to be higher among the psychotropic medication-free patients than the controls, it was not found to be significant. However, a significantly higher level of IL-6 was observed in this group. CONCLUSIONS The results provide the evidence for a possible immunomodulatory effect of antipsychotic drugs on CRP. Future investigations including the study of antipsychotics separately may help to understand the differential effects of individual antipsychotics on CRP level. Additional studies with a larger sample size of psychotropic medication-free patients may help to verify the role of inflammation in schizophrenia patients of this region.
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Affiliation(s)
- Jiwan Gurung
- a Department of Zoology, School of Life Sciences , Sikkim University , Sikkim , India
| | - Dependra Chamlagai
- a Department of Zoology, School of Life Sciences , Sikkim University , Sikkim , India
| | - Nirmal Kumar Bera
- b Department of Psychiatry , North Bengal Medical College, and Hospital , Siliguri , India
| | - Tapas Kumar Chaudhuri
- c Department of Zoology, Cellular Immunology Laboratory , University of North Bengal , Siliguri , India
| | - Bisu Singh
- a Department of Zoology, School of Life Sciences , Sikkim University , Sikkim , India
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REFERENCES. Monogr Soc Res Child Dev 2018. [DOI: 10.1111/mono.12368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lucchese G, Stahl B. Peptide Sharing Between Viruses and DLX Proteins: A Potential Cross-Reactivity Pathway to Neuropsychiatric Disorders. Front Neurosci 2018; 12:150. [PMID: 29618965 PMCID: PMC5871705 DOI: 10.3389/fnins.2018.00150] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Accepted: 02/26/2018] [Indexed: 12/24/2022] Open
Abstract
The present study seeks to determine potential associations between viral infections and neuropsychiatric diseases. To address this issue, we investigated the peptide commonalities between viruses that have been related to psychiatric and neurological disorders—such as rubella, human immunodeficiency virus, and herpesviruses—and human distal-less homeobox (DLX) proteins expressed in developing brain—namely, DLX1, DLX2, DLX5, and DLX6. Peptide matching analyses revealed a high degree of pentapeptide sharing. From an immunological perspective, this overlap is relevant because pentapeptides are endowed with immunogenicity and antigenicity—that is, they are immune determinants. Moreover, infection-induced immune cross-reactions might have functional, spatial, and temporal implications related to the functions and expression patterns of DLX1 and DLX5 in the fetal and adult human brain. In sum, our data support the hypothesis that viral infections may be linked to neuropsychiatric diseases through autoimmune cross-reactions caused by molecular mimicry between viral proteins and brain-specific DLX self-antigens.
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Affiliation(s)
- Guglielmo Lucchese
- Brain Language Laboratory, Freie Universität Berlin, Berlin, Germany.,Department of Neurology, Universitätsmedizin Greifswald, Greifswald, Germany
| | - Benjamin Stahl
- Department of Neurology, Universitätsmedizin Greifswald, Greifswald, Germany.,Department of Neurology, Charité Universitätsmedizin Berlin, Berlin, Germany.,Department of Neurophysics, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany.,Psychologische Hochschule Berlin, Berlin, Germany
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Are infectious agents involved in the pathogenesis of postpartum psychosis? J Affect Disord 2018; 229:141-144. [PMID: 29310062 DOI: 10.1016/j.jad.2017.12.069] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 11/21/2017] [Accepted: 12/31/2017] [Indexed: 11/22/2022]
Abstract
BACKGROUND Since postpartum psychosis has been linked to activation of the immune system, it has been hypothesized that infectious agents may be involved in the pathogenesis of this disorder. We therefore investigated whether exposure to pathogens that can infect the central nervous system is increased in patients with postpartum psychosis. METHODS We measured the prevalence and titers of immunoglobulin G (IgG) and M (IgM) to herpes simplex virus type 1 (HSV-1) and 2 (HSV-2), Epstein-Barr virus (EBV), cytomegalovirus (CMV) and Toxoplasma Gondii (TG) in a cohort of patients with postpartum psychosis (n = 81) and compared these to matched postpartum controls. RESULTS We did not find significant differences in seroprevalence or antibody titers for any of these pathogens. LIMITATIONS Limitations of this study include the indirect measurement of infectious disease and the cross-sectional design. CONCLUSION Our results do not support the hypothesis that exposure to these neurotropic pathogens is involved in postpartum psychosis.
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ALI M, DAS S. "Neuro-psycho- BS": A Case Report of Rare Association with Bipolar Disorder. SHANGHAI ARCHIVES OF PSYCHIATRY 2018; 30:52-55. [PMID: 29719359 PMCID: PMC5925600 DOI: 10.11919/j.issn.1002-0829.217126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Bechet's Disease is an inflammatory disease characterized by recurrent oral ulcers (OU), genital ulcers (GU) and uveitis which can develop a neurobehavioral syndrome, also defined as 'neuro-psycho- BS'. Depending on vascular or parenchymal lesions, the presentations could be varied. Due to sparse literature, there is no consensus on management of psychiatric illness comorbid with Bechet's disease. Bipolar disorder in Bechet's disease is extremely rare. Here, we are presenting a case of episodic exaggeration of Bipolar disorder along with Bechet's disease which imposed both clinical and management challenges.
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Affiliation(s)
| | - Soumitra DAS
- * Mailing address: New Kabini Hostel, NIMHANS, Bangalore, India; Postcode: 560029;
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Borovcanin MM, Jovanovic I, Radosavljevic G, Pantic J, Minic Janicijevic S, Arsenijevic N, Lukic ML. Interleukin-6 in Schizophrenia-Is There a Therapeutic Relevance? Front Psychiatry 2017; 8:221. [PMID: 29163240 PMCID: PMC5681495 DOI: 10.3389/fpsyt.2017.00221] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2017] [Accepted: 10/20/2017] [Indexed: 12/13/2022] Open
Abstract
Renewing interest in immune aspects of schizophrenia and new findings about the brain-fat axis encourage us to discuss the possible role of interleukin-6 (IL-6) in schizophrenia. Previously, it was suggested that a primary alteration of the innate immune system may be relevant in schizophrenia. Functional dichotomy of IL-6 suggests that this chemical messenger may be responsible for regulating the balance between pro- and anti-inflammatory responses, with tissue-specific properties at the periphery and in the central nervous system. Specific phase of this chronic and deteriorating disorder must be considered, which can involve IL-6 in acute or possible chronic inflammation and/or autoimmunity. We give an overview of IL-6 role in the onset and progression of this disorder, also considering cognitive impairment and metabolic changes in patients with schizophrenia. Data suggest that decreased serum level of IL-6 following antipsychotic therapy could be predisposing factor for the development of obesity and obesity-related metabolic disorders in schizophrenia. As we reviewed, the IL-6 plays significant role in disease genesis and progression, so the use of specific inhibitors may not only be beneficial for exacerbation and alleviation of positive symptoms, but may attenuate cognitive impairment in patients with schizophrenia.
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Affiliation(s)
| | - Ivan Jovanovic
- Center for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Gordana Radosavljevic
- Center for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Jelena Pantic
- Center for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | | | - Nebojsa Arsenijevic
- Center for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Miodrag L. Lukic
- Center for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
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Bipolar Disorder and Immune Dysfunction: Epidemiological Findings, Proposed Pathophysiology and Clinical Implications. Brain Sci 2017; 7:brainsci7110144. [PMID: 29084144 PMCID: PMC5704151 DOI: 10.3390/brainsci7110144] [Citation(s) in RCA: 146] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 10/25/2017] [Accepted: 10/27/2017] [Indexed: 12/22/2022] Open
Abstract
Bipolar disorder (BD) is strongly associated with immune dysfunction. Replicated epidemiological studies have demonstrated that BD has high rates of inflammatory medical comorbidities, including autoimmune disorders, chronic infections, cardiovascular disease and metabolic disorders. Cytokine studies have demonstrated that BD is associated with chronic low-grade inflammation with further increases in pro-inflammatory cytokine levels during mood episodes. Several mechanisms have been identified to explain the bidirectional relationship between BD and immune dysfunction. Key mechanisms include cytokine-induced monoamine changes, increased oxidative stress, pathological microglial over-activation, hypothalamic-pituitary-adrenal (HPA) axis over-activation, alterations of the microbiome-gut-brain axis and sleep-related immune changes. The inflammatory-mood pathway presents several potential novel targets in the treatment of BD. Several proof-of-concept clinical trials have shown a positive effect of anti-inflammatory agents in the treatment of BD; however, further research is needed to determine the clinical utility of these treatments. Immune dysfunction is likely to only play a role in a subset of BD patients and as such, future clinical trials should also strive to identify which specific group(s) of BD patients may benefit from anti-inflammatory treatments.
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Alam R, Abdolmaleky HM, Zhou JR. Microbiome, inflammation, epigenetic alterations, and mental diseases. Am J Med Genet B Neuropsychiatr Genet 2017; 174:651-660. [PMID: 28691768 PMCID: PMC9586840 DOI: 10.1002/ajmg.b.32567] [Citation(s) in RCA: 145] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 06/12/2017] [Indexed: 12/16/2022]
Abstract
Major mental diseases such as autism, bipolar disorder, schizophrenia, and major depressive disorder are debilitating illnesses with complex etiologies. Recent findings show that the onset and development of these illnesses cannot be well described by the one-gene; one-disease approach. Instead, their clinical presentation is thought to result from the regulative interplay of a large number of genes. Even though the involvement of many genes are likely, up regulating and activation or down regulation and silencing of these genes by the environmental factors play a crucial role in contributing to their pathogenesis. Much of this interplay may be moderated by epigenetic changes. Similar to genetic mutations, epigenetic modifications such as DNA methylation, histone modifications, and RNA interference can influence gene expression and therefore may cause behavioral and neuronal changes observed in mental disorders. Environmental factors such as diet, gut microbiota, and infections have significant role in these epigenetic modifications. Studies show that bioactive nutrients and gut microbiota can alter either DNA methylation and histone signatures through a variety of mechanisms. Indeed, microbes within the human gut may play a significant role in the regulation of various elements of "gut-brain axis," via their influence on inflammatory cytokines and production of antimicrobial peptides that affect the epigenome through their involvement in generating short chain fatty acids, vitamin synthesis, and nutrient absorption. In addition, they may participate in-gut production of many common neurotransmitters. In this review we will consider the potential interactions of diet, gastrointestinal microbiome, inflammation, and epigenetic alterations in psychiatric disorders.
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Affiliation(s)
- Reza Alam
- Nutrition/Metabolism Laboratory; Beth Israel Deaconess Medical Center; Harvard Medical School; Boston Massachusetts
| | - Hamid M. Abdolmaleky
- Nutrition/Metabolism Laboratory; Beth Israel Deaconess Medical Center; Harvard Medical School; Boston Massachusetts
| | - Jin-Rong Zhou
- Nutrition/Metabolism Laboratory; Beth Israel Deaconess Medical Center; Harvard Medical School; Boston Massachusetts
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Xiao R, Li S, Cao Q, Wang X, Yan Q, Tu X, Zhu Y, Zhu F. Human endogenous retrovirus W env increases nitric oxide production and enhances the migration ability of microglia by regulating the expression of inducible nitric oxide synthase. Virol Sin 2017; 32:216-225. [PMID: 28656540 DOI: 10.1007/s12250-017-3997-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 05/26/2017] [Indexed: 01/21/2023] Open
Abstract
Human endogenous retrovirus W env (HERV-W env) plays a critical role in many neuropsychological diseases such as schizophrenia and multiple sclerosis (MS). These diseases are accompanied by immunological reactions in the central nervous system (CNS). Microglia are important immunocytes in brain inflammation that can produce a gasotransmitter-nitric oxide (NO). NO not only plays a role in the function of neuronal cells but also participates in the pathogenesis of various neuropsychological diseases. In this study, we reported increased NO production in CHME-5 microglia cells after they were transfected with HERV-W env. Moreover, HERV-W env increased the expression and function of human inducible nitric oxide synthase (hiNOS) and enhanced the promoter activity of hiNOS. Microglial migration was also enhanced. These data revealed that HERV-W env might contribute to increase NO production and microglial migration ability in neuropsychological disorders by regulating the expression of inducible NOS. Results from this study might lead to the identification of novel targets for the treatment of neuropsychological diseases, including neuroinflammatory diseases, stroke, and neurodegenerative diseases.
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Affiliation(s)
- Ran Xiao
- Department of Medical Microbiology, School of Medicine, Wuhan University, Wuhan, 430071, China
| | - Shan Li
- Department of Integrated Medicine, Dongfeng Hospital, Hubei University of Medicine, Wuhan, 442000, China
| | - Qian Cao
- Department of Neurology Medicine, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Xiuling Wang
- Department of Medical Microbiology, School of Medicine, Wuhan University, Wuhan, 430071, China
| | - Qiujin Yan
- Department of Medical Microbiology, School of Medicine, Wuhan University, Wuhan, 430071, China
| | - Xiaoning Tu
- Department of Medical Microbiology, School of Medicine, Wuhan University, Wuhan, 430071, China
| | - Ying Zhu
- The State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Fan Zhu
- Department of Medical Microbiology, School of Medicine, Wuhan University, Wuhan, 430071, China. .,Hubei Province Key Laboratory of Allergy and Immunology, Wuhan, 430071, China.
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The early growth response protein 1-miR-30a-5p-neurogenic differentiation factor 1 axis as a novel biomarker for schizophrenia diagnosis and treatment monitoring. Transl Psychiatry 2017; 7:e998. [PMID: 28072411 PMCID: PMC5545732 DOI: 10.1038/tp.2016.268] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 10/22/2016] [Accepted: 11/13/2016] [Indexed: 01/09/2023] Open
Abstract
To date, diagnosis of schizophrenia is still based on clinical interviews and careful observations, which is subjective and variable, and can lead to misdiagnosis and/or delay in diagnosis. As early intervention in schizophrenia is important in improving outcomes, objective tests that can be used for schizophrenia diagnosis or treatment monitoring are thus in great need. MicroRNAs (miRNAs) negatively regulate target gene expression and their biogenesis is tightly controlled by various factors including transcription factors (TFs). Dysregulation of miRNAs in brain tissue and peripheral blood mononuclear cells (PBMNCs) from patients with schizophrenia has been well documented, but analysis of the sensitivity and specificity for potential diagnostic utility of these alternations is limited. In this study, we explored the TF-miRNA-30-target gene axis as a novel biomarker for schizophrenia diagnosis and treatment monitoring. Using bioinformatics analysis, we retrieved all TFs that control the biogenesis of miRNA 30 members as well as all target genes that are regulated by miRNA-30 members. Further, reverse transcription-quantitative PCR analysis revealed that the early growth response protein 1 (EGR1) and miR-30a-5p were remarkably downregulated, whereas neurogenic differentiation factor 1 (NEUROD1) was significantly upregulated in PBMNCs from patients in acute psychotic state. Antipsychotics treatment resulted in the elevation of EGR1 and miR-30a-5p but the reduction of NEUROD1. Receiver operating characteristic analysis showed that the EGR1-miR-30a-5p-NEUROD1 axis possessed significantly greater diagnostic value than miR-30a-5p alone. Our data suggest the EGR1-miR-30a-5p-NEUROD1 axis might serve as a promising biomarker for diagnosis and treatment monitoring for those patients in acute psychotic state.
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Siebert A. How Non-Diagnostic Listening Led to a Rapid “Recovery” from Paranoid Schizophrenia: What is Wrong with Psychiatry? JOURNAL OF HUMANISTIC PSYCHOLOGY 2016. [DOI: 10.1177/0022167800401005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
An experimental interview with a young woman diagnosed with paranoid schizophrenia led to her rapid recovery. This incident and questions raised about psychiatric practices suggest that something is seriously wrong with psychiatry. It lacks insight into its own behavior, invalidates constructive criticism, avoids the kind of selfexamination it urges on “patients,” shows little interest in accounts of successes with “schizophrenic” individuals, erroneously lumps all the schizophrenias (plural) together in research studies, feels helpless and hopeless about schizophrenia, dismisses evidence that contradicts its inaccurate beliefs, and misrepresents what is known about “schizophrenia” to the public and to patients. The argument is put forward that research should begin to focus on the mind of the beholder. It is time for researchers to examine the cognitive processes, personality traits, and motives of “mental health” professionals who perceive schizophrenia in others and insist that schizophrenia is an incurable brain disease.
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Li F, Karlsson H. Expression and regulation of human endogenous retrovirus W elements. APMIS 2016; 124:52-66. [PMID: 26818262 DOI: 10.1111/apm.12478] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Accepted: 10/12/2015] [Indexed: 01/06/2023]
Abstract
Human endogenous retroviruses (HERV) comprise 8% of the human genome and can be classified into at least 31 families. A typical HERV provirus consists of internal gag, pol and env genes, flanked by two long terminal repeats (LTRs). No single provirus is capable of engendering infectious particles. HERV are by nature repetitive and have with few notable exceptions lost their protein-coding capacity. Therefore, HERV have consistently been excluded from array-based expression studies and hence little is known of their expression, regulation, and potential functional significance. An increasing number of studies have, however, observed expression of the W family of HERV in various human tissues and cells, predominantly in placenta. HERV-W LTRs act as promoters in directing transcription of HERV-W members, contribute to their tissue-specific and highly diversified expression pattern. Furthermore, leaky transcription originating from adjacent genes plays a role in the transcription initiation of HERV-W psudoelements. It has been reported that HERV-W elements, including ERVWE1 (the so far only known HERV-W locus harboring a gene (env) functionally adopted by the human host to critically participate in placenta biogenesis), can become transactivated in a range of human non-placental cell-lines during exogenous virus infections. Aberrant expression of HERV-W has been associated with human diseases, such as cancer, multiple sclerosis, and schizophrenia. Based on published reports, transcriptional activities of HERV-W appear to be influenced by several mechanisms; binding of transcription factors to LTR promoters and enhancers outside of LTRs, genetic variation and alteration in DNA methylation and histone modification. Emerging mechanistic studies support the notion that HERV-W represents a potential marker or mediator of environmental exposures (e.g., virus infection) in the development of chronic complex diseases.
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Affiliation(s)
- Fang Li
- Department of Basic Medical Science, Changsha Medical University, Changsha, China.,Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Håkan Karlsson
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
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Davis J, Eyre H, Jacka FN, Dodd S, Dean O, McEwen S, Debnath M, McGrath J, Maes M, Amminger P, McGorry PD, Pantelis C, Berk M. A review of vulnerability and risks for schizophrenia: Beyond the two hit hypothesis. Neurosci Biobehav Rev 2016; 65:185-94. [PMID: 27073049 PMCID: PMC4876729 DOI: 10.1016/j.neubiorev.2016.03.017] [Citation(s) in RCA: 201] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 03/25/2016] [Accepted: 03/25/2016] [Indexed: 01/15/2023]
Abstract
Schizophrenia risk has often been conceptualized using a model which requires two hits in order to generate the clinical phenotype-the first as an early priming in a genetically predisposed individual and the second a likely environmental insult. The aim of this paper was to review the literature and reformulate this binary risk-vulnerability model. We sourced the data for this narrative review from the electronic database PUBMED. Our search terms were not limited by language or date of publication. The development of schizophrenia may be driven by genetic vulnerability interacting with multiple vulnerability factors including lowered prenatal vitamin D exposure, viral infections, smoking intelligence quotient, social cognition cannabis use, social defeat, nutrition and childhood trauma. It is likely that these genetic risks, environmental risks and vulnerability factors are cumulative and interactive with each other and with critical periods of neurodevelopmental vulnerability. The development of schizophrenia is likely to be more complex and nuanced than the binary two hit model originally proposed nearly thirty years ago. Risk appears influenced by a more complex process involving genetic risk interfacing with multiple potentially interacting hits and vulnerability factors occurring at key periods of neurodevelopmental activity, which culminate in the expression of disease state. These risks are common across a number of neuropsychiatric and medical disorders, which might inform common preventive and intervention strategies across non-communicable disorders.
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Affiliation(s)
- Justin Davis
- Deakin University, IMPACT Strategic Research Centre, School of Medicine, Barwon Health, P.O. Box 291, Geelong, 3220, Australia.
| | - Harris Eyre
- Deakin University, IMPACT Strategic Research Centre, School of Medicine, Barwon Health, P.O. Box 291, Geelong, 3220, Australia
| | - Felice N Jacka
- Deakin University, IMPACT Strategic Research Centre, School of Medicine, Barwon Health, P.O. Box 291, Geelong, 3220, Australia; University of Melbourne, Department of Psychiatry, Level 1 North, Main Block, Royal Melbourne Hospital, Parkville, 3052, Australia; Centre for Adolescent Health, Murdoch Children's Research Institute, Melbourne, Australia; Black Dog Institute, Sydney, Australia
| | - Seetal Dodd
- Deakin University, IMPACT Strategic Research Centre, School of Medicine, Barwon Health, P.O. Box 291, Geelong, 3220, Australia; University of Melbourne, Department of Psychiatry, Level 1 North, Main Block, Royal Melbourne Hospital, Parkville, 3052, Australia
| | - Olivia Dean
- Deakin University, IMPACT Strategic Research Centre, School of Medicine, Barwon Health, P.O. Box 291, Geelong, 3220, Australia; University of Melbourne, Department of Psychiatry, Level 1 North, Main Block, Royal Melbourne Hospital, Parkville, 3052, Australia
| | - Sarah McEwen
- Semel Institute for Neuroscience and Human Behavior, UCLA, United States
| | - Monojit Debnath
- Department of Human Genetics, National Institute of Mental Health and Neurosciences, Bangalore, India
| | - John McGrath
- Queensland Brain Institute, The University of Queensland, Brisbane, 4072, Queensland, Australia; Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, Queensland 4076, Australia
| | - Michael Maes
- Deakin University, IMPACT Strategic Research Centre, School of Medicine, Barwon Health, P.O. Box 291, Geelong, 3220, Australia
| | - Paul Amminger
- Queensland Brain Institute, The University of Queensland, Brisbane, 4072, Queensland, Australia; Orygen, The National Centre of Excellence in Youth Mental Health and Orygen Youth Health Research Centre, 35 Poplar Rd., Parkville, 3052, Australia
| | - Patrick D McGorry
- Orygen, The National Centre of Excellence in Youth Mental Health and Orygen Youth Health Research Centre, 35 Poplar Rd., Parkville, 3052, Australia; Centre of Youth Mental Health, University of Melbourne, 35 Poplar Rd., Parkville, 3052, Australia
| | - Christos Pantelis
- University of Melbourne, Department of Psychiatry, Level 1 North, Main Block, Royal Melbourne Hospital, Parkville, 3052, Australia; Department of Human Genetics, National Institute of Mental Health and Neurosciences, Bangalore, India; Melbourne Neuropsychiatry Centre, The University of Melbourne & Melbourne Health, Parkville, 3052, Australia; Florey Institute for Neuroscience and Mental Health, University of Melbourne, Kenneth Myer Building, 30 Royal Parade, 3052, Parkville, Australia
| | - Michael Berk
- Deakin University, IMPACT Strategic Research Centre, School of Medicine, Barwon Health, P.O. Box 291, Geelong, 3220, Australia; University of Melbourne, Department of Psychiatry, Level 1 North, Main Block, Royal Melbourne Hospital, Parkville, 3052, Australia; Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, Queensland 4076, Australia; Orygen, The National Centre of Excellence in Youth Mental Health and Orygen Youth Health Research Centre, 35 Poplar Rd., Parkville, 3052, Australia; Centre of Youth Mental Health, University of Melbourne, 35 Poplar Rd., Parkville, 3052, Australia; Florey Institute for Neuroscience and Mental Health, University of Melbourne, Kenneth Myer Building, 30 Royal Parade, 3052, Parkville, Australia
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Chase KA, Cone JJ, Rosen C, Sharma RP. The value of interleukin 6 as a peripheral diagnostic marker in schizophrenia. BMC Psychiatry 2016; 16:152. [PMID: 27206977 PMCID: PMC4874006 DOI: 10.1186/s12888-016-0866-x] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 05/13/2016] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Associations between a pro-inflammatory state and schizophrenia have been one of the more enduring findings of psychiatry, with various lines of evidence suggesting a compelling role for IL-6 in the underlying pathogenesis of schizophrenia. METHODS In this study, we examined IL-6 mRNA levels by real-time RT-PCR from fresh extracted peripheral blood mononuclear cells (PBMC) in normal controls and participants with schizophrenia. RESULTS We found that peripheral PBMC IL-6 mRNA levels, in the absence of any other information, reliably discriminated between a diagnosis of schizophrenia and normal controls. Furthermore, in participants with schizophrenia, we also found elevated levels of IL-6 mRNA with earlier ages of illness onset and worse positive symptom presentation, as measured by the Positive and Negative Syndrome Scale. CONCLUSIONS These findings provide important and continued support for a pathophysiological role of inflammation in patients with schizophrenia. Future utilization of peripheral IL-6 mRNA levels could be clinically useful during an initial diagnosis and help tailor individualized treatment plans for patients with schizophrenia.
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Affiliation(s)
- Kayla A. Chase
- The Psychiatric Institute, University of Illinois at Chicago, 1601 W. Taylor St., Chicago, IL 60612 USA ,Department of Psychiatry, The University of California, 9500 Gilman Drive, La Jolla, San Diego, CA 92093 USA
| | - Jackson J. Cone
- Department of Neurobiology, The University of Chicago, 5812 S. Ellis, Chicago, IL 60637 USA
| | - Cherise Rosen
- The Psychiatric Institute, University of Illinois at Chicago, 1601 W. Taylor St., Chicago, IL 60612 USA
| | - Rajiv P. Sharma
- The Psychiatric Institute, University of Illinois at Chicago, 1601 W. Taylor St., Chicago, IL 60612 USA ,Jesse Brown Veterans Affairs Medical Center, 820 South Damen Avenue (M/C 151), Chicago, IL 60612 USA
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Yavarian J, Shatizadeh Malekshahi S, Yavarian R, Yazdani S, Janani L, Shafiei Jandaghi NZ, Kiani SJ, Ahamadkhaniha H. Type specific Real time PCR for detection of human herpes virus 6 in schizophrenia and bipolar patients: a case control study. BMC Psychiatry 2015; 15:296. [PMID: 26584549 PMCID: PMC4653940 DOI: 10.1186/s12888-015-0662-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2015] [Accepted: 10/27/2015] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Schizophrenia (SC) and bipolar disorder (BD) are among the most devastating diseases worldwide. There are several lines of evidence suggesting that viruses may play significant roles in the etiology of these mental disorders. The aim of this study was the detection of HHV-6A/B in the peripheral blood mononuclear cells (PBMC) of SC and BD patients versus the healthy control (HC) subjects using a new method of type-specific Real time PCR analysis. METHODS A type-specific Real time PCR was performed for simultaneous detection and typing of HHV-6A/B in the PBMCs of 120 SC and BD patients and 75 HCs. RESULTS Only one case of HHV-6B out of 120 (0.8 %) SC and BD patients and two cases of HHV-6A (2.7 %) in 75 HCs were detected. CONCLUSIONS The low levels of HHV-6 detection in PBMCs, severely limited the capacity of this study to investigate the association between the presence of HHV-6 and BD or SC in this population, thus no conclusions can be drawn in this regard. Meanwhile this study introduces a Real time PCR based method for type specific detection of HHV-6A/B in clinical samples.
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Affiliation(s)
- Jila Yavarian
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
| | | | - Roya Yavarian
- Department of Psychiatry, Medical School, Urmia University of Medical Sciences, Urmia, West Azarbayejan, Iran.
| | - Shaghayegh Yazdani
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
| | - Leila Janani
- Department of Biostatistics, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
| | | | - Seyed Jalal Kiani
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
| | - HamidReza Ahamadkhaniha
- Department of Psychiatry, Medical School, Iran University of Medical Sciences, Tehran, Iran.
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Müller N, Weidinger E, Leitner B, Schwarz MJ. The role of inflammation in schizophrenia. Front Neurosci 2015; 9:372. [PMID: 26539073 PMCID: PMC4612505 DOI: 10.3389/fnins.2015.00372] [Citation(s) in RCA: 279] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Accepted: 09/28/2015] [Indexed: 12/16/2022] Open
Abstract
High levels of pro-inflammatory substances such as cytokines have been described in the blood and cerebrospinal fluid of schizophrenia patients. Animal models of schizophrenia show that under certain conditions an immune disturbance during early life, such as an infection-triggered immune activation, might trigger lifelong increased immune reactivity. A large epidemiological study clearly demonstrated that severe infections and autoimmune disorders are risk factors for schizophrenia. Genetic studies have shown a strong signal for schizophrenia on chromosome 6p22.1, in a region related to the human leucocyte antigen (HLA) system and other immune functions. Another line of evidence demonstrates that chronic (dis)stress is associated with immune activation. The vulnerability-stress-inflammation model of schizophrenia includes the contribution of stress on the basis of increased genetic vulnerability for the pathogenesis of schizophrenia, because stress may increase pro-inflammatory cytokines and even contribute to a lasting pro-inflammatory state. Immune alterations influence the dopaminergic, serotonergic, noradrenergic, and glutamatergic neurotransmission. The activated immune system in turn activates the enzyme indoleamine 2,3-dioxygenase (IDO) of the tryptophan/kynurenine metabolism which influences the serotonergic and glutamatergic neurotransmission via neuroactive metabolites such as kynurenic acid. The described loss of central nervous system volume and the activation of microglia, both of which have been clearly demonstrated in neuroimaging studies of schizophrenia patients, match the assumption of a (low level) inflammatory neurotoxic process. Further support for the inflammatory hypothesis comes from the therapeutic benefit of anti-inflammatory medication. Metaanalyses have shown an advantageous effect of cyclo-oxygenase-2 inhibitors in early stages of schizophrenia. Moreover, intrinsic anti-inflammatory, and immunomodulatory effects of antipsychotic drugs are known since a long time. Anti-inflammatory effects of antipsychotics, therapeutic effects of anti-inflammtory compounds, genetic, biochemical, and immunological findings point to a major role of inflammation in schizophrenia.
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Affiliation(s)
- Norbert Müller
- Department of Psychiatry and Psychotherapy, Ludwig Maximilian University Munich, Germany
| | - Elif Weidinger
- Department of Psychiatry and Psychotherapy, Ludwig Maximilian University Munich, Germany
| | - Bianka Leitner
- Department of Psychiatry and Psychotherapy, Ludwig Maximilian University Munich, Germany
| | - Markus J Schwarz
- Department of Laboratory Medicine, Ludwig Maximilian University Munich, Germany
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Hamdani N, Daban-Huard C, Lajnef M, Gadel R, Le Corvoisier P, Delavest M, Carde S, Lépine JP, Jamain S, Houenou J, Galeh B, Richard JR, Aoki M, Charron D, Krishnamoorthy R, Yolken R, Dickerson F, Tamouza R, Leboyer M. Cognitive deterioration among bipolar disorder patients infected by Toxoplasma gondii is correlated to interleukin 6 levels. J Affect Disord 2015; 179:161-6. [PMID: 25863913 DOI: 10.1016/j.jad.2015.03.038] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 03/20/2015] [Accepted: 03/23/2015] [Indexed: 12/21/2022]
Abstract
BACKGROUND Cognitive deficits are present in a large majority of Bipolar Disorder (BD) patients and known to be a marker of bad prognosis. Because, these deficits encompass several domains and no specific medical treatment seems to be effective, it is important to better understand the mechanisms underlying cognitive deterioration. As Toxoplasma gondii is known to induce the synthesis of pro-inflammatory cytokines such as IL-6, we will explore here the possible role of T. gondii in the cognitive decline observed in BD. METHODS 42 euthymic BD patients and 36 controls were assessed for episodic verbal memory using the CVLT and for working memory and verbal ability using the WAIS III. Patients and controls were also screened for seropositivity to T. gondii and evaluated for the levels of IL-6 transcripts. RESULTS The seropositivity for T. gondii was significantly higher in BD patients as compared to controls (p=0.005). The cognitive deterioration index (DI) was higher in BD patients (p=5.10(-6)) and correlated to high IL-6 mRNA expression only among those infected by T. gondii (rho=0.43, p=0.01). Among deteriorated patients (defined by scores above 0.10 according to Weschler׳s definition), the IL-6 mRNA expression was twice greater (p=0.01). LIMITATIONS Our results are to be interpreted with caution because of our small sample size and the cross-sectional design. CONCLUSIONS A long-term exposure to inflammation, measured here with IL-6 mRNA expression in T. gondii infected BD may alter cognitive functioning. IL-6 could thus be a useful predictive marker of cognitive deterioration in BD and may help to design personalized treatment.
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Affiliation(s)
- Nora Hamdani
- Inserm U955, Equipe 15 « Psychiatrie Génétique », Créteil F-94000, France; AP-HP, DHU Pe-PSY, Université Paris Est Créteil, Groupe Henri Mondor - Albert Chenevier, Pôle de psychiatrie et d׳Addictologie, Créteil F-94000, France; Fondation Fondamental, Fondation de coopération scientifique, Créteil F94000, France.
| | - Claire Daban-Huard
- Inserm U955, Equipe 15 « Psychiatrie Génétique », Créteil F-94000, France; AP-HP, DHU Pe-PSY, Université Paris Est Créteil, Groupe Henri Mondor - Albert Chenevier, Pôle de psychiatrie et d׳Addictologie, Créteil F-94000, France; Fondation Fondamental, Fondation de coopération scientifique, Créteil F94000, France
| | - Mohamed Lajnef
- Inserm U955, Equipe 15 « Psychiatrie Génétique », Créteil F-94000, France; AP-HP, DHU Pe-PSY, Université Paris Est Créteil, Groupe Henri Mondor - Albert Chenevier, Pôle de psychiatrie et d׳Addictologie, Créteil F-94000, France; Fondation Fondamental, Fondation de coopération scientifique, Créteil F94000, France
| | - Rémi Gadel
- Inserm U955, Equipe 15 « Psychiatrie Génétique », Créteil F-94000, France; AP-HP, DHU Pe-PSY, Université Paris Est Créteil, Groupe Henri Mondor - Albert Chenevier, Pôle de psychiatrie et d׳Addictologie, Créteil F-94000, France; Fondation Fondamental, Fondation de coopération scientifique, Créteil F94000, France
| | - Philippe Le Corvoisier
- CIC 006Henri Mondor INSERM & Plateforme de Ressources Biologiques, Université Paris Est Créteil, AP-HP, France
| | - Marine Delavest
- Neurospin, UNIACT Lab, Psychiatry Team, CEA Saclay, France; AP-HP, Université Paris Diderot, Service de Psychiatrie, Hôpital Lariboisiere Fernand Widal, F-75010 Paris, France
| | - Soufiane Carde
- Inserm U955, Equipe 15 « Psychiatrie Génétique », Créteil F-94000, France; AP-HP, DHU Pe-PSY, Université Paris Est Créteil, Groupe Henri Mondor - Albert Chenevier, Pôle de psychiatrie et d׳Addictologie, Créteil F-94000, France; Fondation Fondamental, Fondation de coopération scientifique, Créteil F94000, France; Neurospin, UNIACT Lab, Psychiatry Team, CEA Saclay, France
| | - Jean-Pierre Lépine
- Fondation Fondamental, Fondation de coopération scientifique, Créteil F94000, France; AP-HP, Université Paris Diderot, Service de Psychiatrie, Hôpital Lariboisiere Fernand Widal, F-75010 Paris, France
| | - Stéphane Jamain
- Fondation Fondamental, Fondation de coopération scientifique, Créteil F94000, France; AP-HP, Université Paris Diderot, Service de Psychiatrie, Hôpital Lariboisiere Fernand Widal, F-75010 Paris, France
| | - Josselin Houenou
- Inserm U955, Equipe 15 « Psychiatrie Génétique », Créteil F-94000, France; AP-HP, DHU Pe-PSY, Université Paris Est Créteil, Groupe Henri Mondor - Albert Chenevier, Pôle de psychiatrie et d׳Addictologie, Créteil F-94000, France; Fondation Fondamental, Fondation de coopération scientifique, Créteil F94000, France; Neurospin, UNIACT Lab, Psychiatry Team, CEA Saclay, France
| | - Bijan Galeh
- CIC 006Henri Mondor INSERM & Plateforme de Ressources Biologiques, Université Paris Est Créteil, AP-HP, France
| | - Jean-Romain Richard
- Inserm U955, Equipe 15 « Psychiatrie Génétique », Créteil F-94000, France; Fondation Fondamental, Fondation de coopération scientifique, Créteil F94000, France
| | - Masayuki Aoki
- Fondation Fondamental, Fondation de coopération scientifique, Créteil F94000, France; Jean Dausset Dept & INSERM, UMRS 940, Hôpital Saint Louis, Univ Paris Diderot, Paris F75010, France
| | - Dominique Charron
- Fondation Fondamental, Fondation de coopération scientifique, Créteil F94000, France; Jean Dausset Dept & INSERM, UMRS 940, Hôpital Saint Louis, Univ Paris Diderot, Paris F75010, France
| | | | - Robert Yolken
- Stanley Laboratory of Developmental Neurovirology, Johns Hopkins University Medical Center, Baltimore, USA
| | - Faith Dickerson
- Stanley Laboratory of Developmental Neurovirology, Johns Hopkins University Medical Center, Baltimore, USA
| | - Ryad Tamouza
- Fondation Fondamental, Fondation de coopération scientifique, Créteil F94000, France; Stanley Research Program, Sheppard Pratt, Baltimore, MD, USA
| | - Marion Leboyer
- Inserm U955, Equipe 15 « Psychiatrie Génétique », Créteil F-94000, France; AP-HP, DHU Pe-PSY, Université Paris Est Créteil, Groupe Henri Mondor - Albert Chenevier, Pôle de psychiatrie et d׳Addictologie, Créteil F-94000, France; Fondation Fondamental, Fondation de coopération scientifique, Créteil F94000, France
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Leza JC, García-Bueno B, Bioque M, Arango C, Parellada M, Do K, O'Donnell P, Bernardo M. Inflammation in schizophrenia: A question of balance. Neurosci Biobehav Rev 2015; 55:612-26. [PMID: 26092265 DOI: 10.1016/j.neubiorev.2015.05.014] [Citation(s) in RCA: 142] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 04/22/2015] [Accepted: 05/18/2015] [Indexed: 02/08/2023]
Abstract
In the past decade, there has been renewed interest in immune/inflammatory changes and their associated oxidative/nitrosative consequences as key pathophysiological mechanisms in schizophrenia and related disorders. Both brain cell components (microglia, astrocytes, and neurons) and peripheral immune cells have been implicated in inflammation and the resulting oxidative/nitrosative stress (O&NS) in schizophrenia. Furthermore, down-regulation of endogenous antioxidant and anti-inflammatory mechanisms has been identified in biological samples from patients, although the degree and progression of the inflammatory process and the nature of its self-regulatory mechanisms vary from early onset to full-blown disease. This review focuses on the interactions between inflammation and O&NS, their damaging consequences for brain cells in schizophrenia, the possible origins of inflammation and increased O&NS in the disorder, and current pharmacological strategies to deal with these processes (mainly treatments with anti-inflammatory or antioxidant drugs as add-ons to antipsychotics).
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Affiliation(s)
- Juan C Leza
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Complutense University, Madrid, Spain; Department of Pharmacology, Faculty of Medicine, Complutense University, Madrid, Spain; Instituto de Investigación Sanitaria (IIS) Hospital 12 de Octubre (i+12), Madrid, Spain.
| | - Borja García-Bueno
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Complutense University, Madrid, Spain; Department of Pharmacology, Faculty of Medicine, Complutense University, Madrid, Spain; Instituto de Investigación Sanitaria (IIS) Hospital 12 de Octubre (i+12), Madrid, Spain
| | - Miquel Bioque
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Complutense University, Madrid, Spain; Barcelona Clínic Schizophrenia Unit, Hospital Clínic Barcelona, University of Barcelona, IDIBAPS, Barcelona, Spain
| | - Celso Arango
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Complutense University, Madrid, Spain; Department of Psychiatry, Faculty of Medicine, Complutense University, Madrid, Spain; Child and Adolescent Psychiatry Department, IIS Hospital Gregorio Marañón (IISGM), Madrid, Spain
| | - Mara Parellada
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Complutense University, Madrid, Spain; Department of Psychiatry, Faculty of Medicine, Complutense University, Madrid, Spain; Child and Adolescent Psychiatry Department, IIS Hospital Gregorio Marañón (IISGM), Madrid, Spain
| | - Kim Do
- Center for Psychiatric Neuroscience, Department of Psychiatry, Lausanne University Hospital, Lausanne, Switzerland
| | | | - Miguel Bernardo
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Complutense University, Madrid, Spain; Barcelona Clínic Schizophrenia Unit, Hospital Clínic Barcelona, University of Barcelona, IDIBAPS, Barcelona, Spain
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