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Schizophrenia immunology

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https://www.readbyqxmd.com/read/27921323/the-application-of-strand-invasion-phenomenon-directed-by-peptide-nucleic-acid-pna-and-single-stranded-dna-binding-protein-ssb-for-the-recognition-of-specific-sequences-of-human-endogenous-retroviral-herv-w-family
#1
Grzegorz Machnik, Łukasz Bułdak, Jarosław Ruczyński, Tomasz Gąsior, Małgorzata Huzarska, Dariusz Belowski, Magdalena Alenowicz, Piotr Mucha, Piotr Rekowski, Bogusław Okopień
The HERV-W family of human endogenous retroviruses represents a group of numerous sequences that show close similarity in genetic composition. It has been documented that some members of HERV-W-derived expression products are supposed to play significant role in humans' pathology, such as multiple sclerosis or schizophrenia. Other members of the family are necessary to orchestrate physiological processes (eg, ERVWE1 coding syncytin-1 that is engaged in syncytiotrophoblast formation). Therefore, an assay that would allow the recognition of particular form of HERV-W members is highly desirable...
December 6, 2016: Journal of Molecular Recognition: JMR
https://www.readbyqxmd.com/read/27920282/nmda-receptor-encephalitis-and-other-antibody-mediated-disorders-of-the-synapse-the-2016-cotzias-lecture
#2
Josep Dalmau
Investigations during the last 10 years have revealed a group of disorders mediated by antibodies against ion channels and synaptic receptors, which cause both neurologic and psychiatric symptoms. In this review, I discuss the process of discovery and immunologic triggers of these disorders, and use anti-NMDA receptor encephalitis to emphasize the importance of understanding the underlying physiopathologic mechanisms in those diseases. A better knowledge of these mechanisms reveals points of convergence with other disorders (e...
December 6, 2016: Neurology
https://www.readbyqxmd.com/read/27900676/functional-implications-of-the-il-23-il-17-immune-axis-in-schizophrenia
#3
REVIEW
Monojit Debnath, Michael Berk
The aetiology of schizophrenia seems to stem from complex interactions amongst environmental, genetic, metabolic, immunologic and oxidative components. Chronic low-grade inflammation has been persistently linked to schizophrenia, and this has primarily been based on the findings derived from Th1/Th2 cytokine balance. While the IL-23/IL-17 axis plays crucial role in the pathogenesis of several immune-mediated disorders, it has remained relatively unexplored in neuropsychiatric disorders. Altered levels of cytokines related to IL-23/IL-17 axis have been observed in schizophrenia patients in a few studies...
November 29, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27847927/family-association-study-of-transforming-growth-factor-beta1-gene-polymorphisms-in-schizophrenia
#4
Paweł Kapelski, Maria Skibińska, Małgorzata Maciukiewicz, Dorota Zaremba, Maria Jasiak, Joanna Hauser
OBJECTIVES: Schizophrenia is a serious mental illness with chronic symptoms and significant impairment in psychosocial functioning. An etiopathological role for immunologic abnormalities in schizophrenia was hypothesized. Inflammatory markers are well-known etiological factors for psychiatric disorders, including schizophrenia. Several studies have investigated the possible effects of antipsychotics on inflammation and neurogenesis. Additionally, antiinflammatory adjuvant therapy has been under investigation as a treatment option for schizophrenia...
2016: Psychiatria Polska
https://www.readbyqxmd.com/read/27827293/vitamin-d-deficiency-behavioral-atypicality-anxiety-and-depression-in-children-with-chromosome-22q11-2-deletion-syndrome
#5
L Kelley, A F P Sanders, E A Beaton
Chromosome 22q11.2 deletion syndrome (22q11.2DS) is a complex developmental disorder with serious medical, cognitive and emotional symptoms across the lifespan. This genetic deletion also imparts a lifetime risk for developing schizophrenia that is 25-30 times that of the general population. The origin of this risk is multifactorial and may include dysregulation of the stress response and immunological systems in relation to brain development. Vitamin D is involved in brain development and neuroprotection, gene transcription, immunological regulation and influences neuronal signal transduction...
December 2016: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/27793216/toxoplasma-gondii-a-gastrointestinal-pathogen-associated-with-human-brain-diseases
#6
E G Severance, J Xiao, L Jones-Brando, S Sabunciyan, Y Li, M Pletnikov, E Prandovszky, R Yolken
Serious psychiatric disorders such as schizophrenia, bipolar disorder, and major depression are important causes of mortality and morbidity worldwide. While these are primarily diseases involving altered brain functioning, numerous studies have documented increased rates of gastrointestinal inflammation and dysfunction in many individuals with these disorders. Toxoplasma gondii is an apicomplexan protozoan intracellular parasite with a widespread distribution in both developed and developing countries. Toxoplasma organisms enter the ecosystem through the shedding of oocysts by Toxoplasma-infected felines...
2016: International Review of Neurobiology
https://www.readbyqxmd.com/read/27781077/neuroprotective-effects-of-a%C3%A3-a%C3%A3-euterpe-oleracea-mart-against-rotenone-in-vitro-exposure
#7
Alencar Kolinski Machado, Ana Cristina Andreazza, Tatiane Morgana da Silva, Aline Augusti Boligon, Vanusa do Nascimento, Gustavo Scola, Angela Duong, Francine Carla Cadoná, Euler Esteves Ribeiro, Ivana Beatrice Mânica da Cruz
Neuropsychiatric diseases, such as bipolar disorder (BD) and schizophrenia (SCZ), have a very complex pathophysiology. Several current studies describe an association between psychiatric illness and mitochondrial dysfunction and consequent cellular modifications, including lipid, protein, and DNA damage, caused by cellular oxidative stress. Euterpe oleracea (açaí) is a powerful antioxidant fruit. Açaí is an Amazonian palm fruit primarily found in the lowlands of the Amazonian rainforest, particularly in the floodplains of the Amazon River...
2016: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/27776604/negative-affect-perceived-health-and-endocrine-and-immunological-levels-in-caregivers-of-offspring-with-schizophrenia
#8
Sara De Andrés-García, Irene Cano-López, Luis Moya-Albiol, Esperanza González-Bono
BACKGROUND: Negative affect (NA) and chronic stress are separately associated with health imbalances, and the interaction between the two aspects remains unclear. Care of relatives with long-term pathologies could be a likely model in the study of this issue, as caregivers frequently report chronic stress and health complaints. The aim of this study is examine the role of NA on psychophysiological stress-induced response and health in schizophrenia caregivers. METHOD: Forty-one caregivers were distributed into two groups accordingly to their scores in NA...
November 2016: Psicothema
https://www.readbyqxmd.com/read/27766084/vitamin-d-deficiency-in-adult-patients-with-schizophreniform-and-autism-spectrum-syndromes-a-one-year-cohort-study-at-a-german-tertiary-care-hospital
#9
Dominique Endres, Rick Dersch, Oliver Stich, Armin Buchwald, Evgeniy Perlov, Bernd Feige, Simon Maier, Andreas Riedel, Ludger Tebartz van Elst
INTRODUCTION: Vitamin D has many immunomodulatory, anti-inflammatory, and neuroprotective functions, and previous studies have demonstrated an association between vitamin D deficiency and neuropsychiatric disease. The aim of our study was to analyze the prevalence of vitamin D deficiency in a 1-year cohort of adult inpatients with schizophreniform and autism spectrum syndromes in a naturalistic inpatient setting in Germany. PARTICIPANTS AND METHODS: Our study was comprised of 60 adult schizophreniform and 23 adult high-functioning autism spectrum patients who were hospitalized between January and December of 2015...
2016: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/27651254/cannabinoids-glutamatergic-transmission-and-kynurenines
#10
Ana Laura Colín-González, Gabriela Aguilera, Abel Santamaría
The endocannabinoid system (ECS) comprises a complex of receptors, enzymes, and endogenous agonists that are widely distributed in the central nervous system of mammals and participates in a considerable number of neuromodulatory functions, including neurotransmission, immunological control, and cell signaling. In turn, the kynurenine pathway (KP) is the most relevant metabolic route for tryptophan degradation to form the metabolic precursor NAD(+). Recent studies demonstrate that the control exerted by the pharmacological manipulation of the ECS on the glutamatergic system in the brain may offer key information not only on the development of psychiatric disorders like psychosis and schizophrenia-like symptoms, but it also may constitute a solid basis for the development of therapeutic strategies to combat excitotoxic events occurring in neurological disorders like Huntington's disease (HD)...
2016: Advances in Neurobiology
https://www.readbyqxmd.com/read/27550615/cholinergic-system-and-neuroinflammation-implication-in-multiple-sclerosis
#11
Maria Di Bari, Giovanni Di Pinto, Marcella Reale, Guadalupe Mengod, Ada Maria Tata
Multiple sclerosis (MS) is an inflammatory and neurodegenerative disease of the central nervous system (CNS) characterized by leucocytes infiltration, demyelination, axonal degeneration and neuronal death. Although the etiology of MS is still unknown, inflammation and autoimmunity are considered to be key players of the disease. The severe alterations affecting the nervous system contribute to the motor and cognitive disabilities and are in large part dependent on severe inflammatory processes active in both central nervous system and immune system...
August 22, 2016: Central Nervous System Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/27457803/serum-and-glucocorticoid-inducible-kinases-in-microglia
#12
Koichi Inoue, Eisuke Sakuma, Hiroyuki Morimoto, Hayato Asai, Yoshinori Koide, Tiandong Leng, Ikuo Wada, Zhi-Gang Xiong, Takatoshi Ueki
Microglia are derived from myelogenous cells and contribute to immunological and inflammatory responses in central nervous system. They play important roles not only in infectious diseases and inflammation after stroke, but also in psychiatric diseases such as schizophrenia. While recent studies suggest the significances of serum- and glucocorticoid-inducible kinases (SGKs) in other immune cells such as macrophages, T cells and dendritic cells, their role in microglia remains unknown. Here we, for the first time, report that SGK1 and SGK3 are expressed in multiple microglial cell lines...
September 9, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27450777/transcriptome-wide-mega-analyses-reveal-joint-dysregulation-of-immunologic-genes-and-transcription-regulators-in-brain-and-blood-in-schizophrenia
#13
Jonathan L Hess, Daniel S Tylee, Rahul Barve, Simone de Jong, Roel A Ophoff, Nishantha Kumarasinghe, Paul Tooney, Ulrich Schall, Erin Gardiner, Natalie Jane Beveridge, Rodney J Scott, Surangi Yasawardene, Antionette Perera, Jayan Mendis, Vaughan Carr, Brian Kelly, Murray Cairns, Ming T Tsuang, Stephen J Glatt
The application of microarray technology in schizophrenia research was heralded as paradigm-shifting, as it allowed for high-throughput assessment of cell and tissue function. This technology was widely adopted, initially in studies of postmortem brain tissue, and later in studies of peripheral blood. The collective body of schizophrenia microarray literature contains apparent inconsistencies between studies, with failures to replicate top hits, in part due to small sample sizes, cohort-specific effects, differences in array types, and other confounders...
October 2016: Schizophrenia Research
https://www.readbyqxmd.com/read/27424266/peripheral-immuno-inflammatory-abnormalities-in-ultra-high-risk-of-developing-psychosis
#14
Maiara Zeni-Graiff, Lucas B Rizzo, Rodrigo B Mansur, Pawan K Maurya, Sumit Sethi, Graccielle R Cunha, Elson Asevedo, Pedro Pan, André Zugman, Ana S Yamagata, Cinthia Higuchi, Rodrigo A Bressan, Ary Gadelha, Elisa Brietzke
BACKGROUND: Immuno-inflammatory imbalances have been documented in schizophrenia, but very little is known about the immunological changes prior to the onset of disease. OBJECTIVE: This work aimed to compare serum levels of pro- and anti-inflammatory cytokines in young subjects at ultra-high risk (UHR) of developing psychosis with age- and sex-matched healthy controls. METHODS: A total of 12 UHR and 16 age- and sex-matched healthy controls (HC) subjects were enrolled in this study...
October 2016: Schizophrenia Research
https://www.readbyqxmd.com/read/27397081/family-based-association-study-of-interleukin-10-il10-and-interleukin-10-receptor-alpha-il10ra-functional-polymorphisms-in-schizophrenia-in-polish-population
#15
Pawel Kapelski, Maria Skibinska, Malgorzata Maciukiewicz, Joanna Pawlak, Dorota Zaremba, Joanna Twarowska-Hauser
Schizophrenia is a heterogeneous disorder and its etiology remains incompletely elucidated. Among possible causes, immunological factors have been implicated in its pathogenesis and course. Interleukin-10 (IL10) and it's receptor IL10RA may play an important role for immunological aspects in etiologies of major psychiatric disorders including schizophrenia. The aim of this study was to perform a transmission disequilibrium test (TDT) on a group of 146 schizophrenia trios from the Polish population. Functional polymorphisms from IL10 (rs1800872, rs1800871, rs1800896, rs1800890, and rs6676671) and IL10RA (rs3135932 and rs2229113) genes were analyzed...
August 15, 2016: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/27384868/serum-il-4-and-il-10-levels-correlate-with-the-symptoms-of-the-drug-naive-adolescents-with-first-episode-early-onset-schizophrenia
#16
Şeref Şimşek, Veli Yıldırım, Abdullah Çim, Savaş Kaya
OBJECTIVE: In this study, it was aimed to understand the underlying possible immunopathogenesis of first episode, early onset schizophrenia (EOS) through profiling the T helper 1 (Th1) cell cytokines TNF-α, IFN-γ, and IL-2, Th2 cell cytokines IL-4 and IL-10, Th17 cell cytokine IL-17A, and inflammatory cytokine IL-6. METHODS: The study included a total of 30 children, admitted to child psychiatry outpatient clinic aged between 10 and 17 years of age, who had not received prior therapy and were diagnosed with psychosis according to the Diagnostic and Statistical Manual of Mental Disorders, 4th edition (DSM-IV) as the patient group, and 26 age- and gender-matched children as the control group...
July 6, 2016: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/27342132/kynurenines-gender-and-neuroinflammation-showcase-schizophrenia
#17
REVIEW
J de Bie, C K Lim, G J Guillemin
Schizophrenia has a clear sexual dimorphism in age of onset and progression. The underlying mechanisms of this dimorphism are not known, but may be found in the interactions of sex hormones with the tryptophan catabolising kynurenine pathway. Schizophrenia is associated with general inflammation and disruption of glutamatergic and dopaminergic signalling. Metabolites of the kynurenine pathway have been shown to be immunomodulatory and have effects on glutamatergic and dopaminergic signalling. This review discusses the currently available literature on sex hormones and their effect on the kynurenine pathway in the context of the glutamatergic, dopaminergic and immunological features of schizophrenia...
October 2016: Neurotoxicity Research
https://www.readbyqxmd.com/read/27317683/covariance-association-test-cvat-identifies-genetic-markers-associated-with-schizophrenia-in-functionally-associated-biological-processes
#18
Palle Duun Rohde, Ditte Demontis, Beatriz Castro Dias Cuyabano, Anders D Børglum, Peter Sørensen
Schizophrenia is a psychiatric disorder with large personal and social costs, and understanding the genetic etiology is important. Such knowledge can be obtained by testing the association between a disease phenotype and individual genetic markers; however, such single-marker methods have limited power to detect genetic markers with small effects. Instead, aggregating genetic markers based on biological information might increase the power to identify sets of genetic markers of etiological significance. Several set test methods have been proposed: Here we propose a new set test derived from genomic best linear unbiased prediction (GBLUP), the covariance association test (CVAT)...
August 2016: Genetics
https://www.readbyqxmd.com/read/27244229/peripheral-immune-cell-populations-associated-with-cognitive-deficits-and-negative-symptoms-of-treatment-resistant-schizophrenia
#19
Emilio Fernandez-Egea, Petra E Vértes, Shaun M Flint, Lorinda Turner, Syed Mustafa, Alex Hatton, Kenneth G C Smith, Paul A Lyons, Edward T Bullmore
BACKGROUND: Hypothetically, psychotic disorders could be caused or conditioned by immunological mechanisms. If so, one might expect there to be peripheral immune system phenotypes that are measurable in blood cells as biomarkers of psychotic states. METHODS: We used multi-parameter flow cytometry of venous blood to quantify and determine the activation state of 73 immune cell subsets for 18 patients with chronic schizophrenia (17 treated with clozapine), and 18 healthy volunteers matched for age, sex, BMI and smoking...
2016: PloS One
https://www.readbyqxmd.com/read/27242348/genome-wide-association-studies-suggest-limited-immune-gene-enrichment-in-schizophrenia-compared-to-5-autoimmune-diseases
#20
Jennie G Pouget, Vanessa F Gonçalves, Sarah L Spain, Hilary K Finucane, Soumya Raychaudhuri, James L Kennedy, Jo Knight
There has been intense debate over the immunological basis of schizophrenia, and the potential utility of adjunct immunotherapies. The major histocompatibility complex is consistently the most powerful region of association in genome-wide association studies (GWASs) of schizophrenia and has been interpreted as strong genetic evidence supporting the immune hypothesis. However, global pathway analyses provide inconsistent evidence of immune involvement in schizophrenia, and it remains unclear whether genetic data support an immune etiology per se...
September 2016: Schizophrenia Bulletin
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