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Early psychosis

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https://www.readbyqxmd.com/read/29353178/impulsivity-in-early-psychosis-a-complex-link-with-violent-behaviour-and-a-target-for-intervention
#1
V Moulin, P Golay, J Palix, P S Baumann, M-M Gholamrezaee, A Azzola, J Gasser, K Q Do, L Alameda, P Conus
BACKGROUND: Violent behaviour (VB) occurs in first episode of schizophrenia and can have devastating impact both on victims and patients themselves. A better knowledge of the underlying mechanisms of VB may pave the way to preventive treatments. OBJECTIVES: 1) To explore the nature of the link between impulsivity and VB in early psychosis (EP) patients; 2) To explore the interactions between impulsivity and substance abuse, insight, and positive symptoms, the main dynamic risk factors of VB described to date...
January 17, 2018: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/29344610/association-of-combined-patterns-of-tobacco-and-cannabis-use-in-adolescence-with-psychotic-experiences
#2
Hannah J Jones, Suzanne H Gage, Jon Heron, Matthew Hickman, Glyn Lewis, Marcus R Munafò, Stanley Zammit
Importance: There is concern about potentially causal effects of tobacco use on psychosis, but epidemiological studies have been less robust in attempts to minimize effects of confounding than studies of cannabis use have been. Objectives: To examine the association of patterns of cigarette and cannabis use with preceding and subsequent psychotic experiences, and to compare effects of confounding across these patterns. Design, Setting, and Participants: This cohort study used data from the Avon Longitudinal Study of Parents and Children, which initially consisted of 14 062 children...
January 17, 2018: JAMA Psychiatry
https://www.readbyqxmd.com/read/29338891/gray-and-white-matter-changes-and-their-relation-to-illness-trajectory-in-first-episode-psychosis
#3
Alejandro Keymer-Gausset, Anna Alonso-Solís, Iluminada Corripio, Rosa B Sauras-Quetcuti, Edith Pomarol-Clotet, Erick J Canales-Rodriguez, Eva Grasa-Bello, Enric Álvarez, Maria J Portella
Previous works have studied structural brain characteristics in first-episode psychosis (FEP), but few have focused on the relation between brain differences and illness trajectories. The aim of this study is to analyze gray and white matter changes in FEP patients and their relation with one-year clinical outcomes. A sample of 41 FEP patients and 41 healthy controls (HC), matched by age and educational level was scanned with a 3T MRI during the first month of illness onset. One year later, patients were assigned to two illness trajectories (schizophrenia and non-schizophrenia)...
January 12, 2018: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29334229/physical-and-psychological-health-of-carers-of-young-people-with-first-episode-psychosis
#4
Abner Weng Cheong Poon, Jackie Curtis, Philip Ward, Celia Loneragan, Julia Lappin
OBJECTIVE: Carers of people with psychosis may experience psychological distress and caregiving burden. However, few studies have examined both psychological and physical health of carers of young people with first episode psychosis (FEP). METHOD: A total of 32 young people with FEP and 42 of their carers were recruited from a mental health service. Standardised scales were administered to assess carers' psychological distress and risk for development of Type 2 diabetes...
January 1, 2018: Australasian Psychiatry: Bulletin of Royal Australian and New Zealand College of Psychiatrists
https://www.readbyqxmd.com/read/29334044/gene-environment-interplay-in-the-etiology-of-psychosis
#5
Alyson Zwicker, Eileen M Denovan-Wright, Rudolf Uher
Schizophrenia and other types of psychosis incur suffering, high health care costs and loss of human potential, due to the combination of early onset and poor response to treatment. Our ability to prevent or cure psychosis depends on knowledge of causal mechanisms. Molecular genetic studies show that thousands of common and rare variants contribute to the genetic risk for psychosis. Epidemiological studies have identified many environmental factors associated with increased risk of psychosis. However, no single genetic or environmental factor is sufficient to cause psychosis on its own...
January 15, 2018: Psychological Medicine
https://www.readbyqxmd.com/read/29332009/poststroke-psychosis-a-systematic-review
#6
REVIEW
Helle Stangeland, Vasiliki Orgeta, Vaughan Bell
A preregistered systematic review of poststroke psychosis examining clinical characteristics, prevalence, diagnostic procedures, lesion location, treatments, risk factors and outcome. Neuropsychiatric outcomes following stroke are common and severely impact quality of life. No previous reviews have focused on poststroke psychosis despite clear clinical need. CINAHL, MEDLINE and PsychINFO were searched for studies on poststroke psychosis published between 1975 and 2016. Reviewers independently selected studies for inclusion, extracted data and rated study quality...
January 13, 2018: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/29331153/is-cognitive-impairment-associated-with-antipsychotic-dose-and-anticholinergic-equivalent-loads-in-first-episode-psychosis
#7
Alejandro Ballesteros, Ana M Sánchez-Torres, Jose M López-Ilundain, Bibiana Cabrera, Antonio Lobo, Ana M González-Pinto, Covadonga Díaz-Caneja, Iluminada Corripio, Eduard Vieta, Elena de la Serna, Julio Bobes, Judith Usall, Fernando Contreras, Ruth Lorente-Omeñaca, Gisela Mezquida, Miguel Bernardo, Manuel J Cuesta
BACKGROUND: Cognitive deficits are a core feature of early stages in schizophrenia. However, the extent to which antipsychotic (AP) have a deleterious effect on cognitive performance remains under debate. We aim to investigate whether anticholinergic loadings and dose of AP drugs in first episode of psychosis (FEP) in advanced phase of remission are associated with cognitive impairment and the differences between premorbid intellectual quotient (IQ) subgroups. METHODS: Two hundred and sixty-six patients participated...
January 14, 2018: Psychological Medicine
https://www.readbyqxmd.com/read/29328779/transforming-the-treatment-of-schizophrenia-in-the-united-states-the-raise-initiative
#8
Lisa B Dixon, Howard Goldman, Vinod H Srihari, John M Kane
The schizophrenia spectrum disorders are neurodevelopmental illnesses with a lifetime prevalence near 1%, producing extensive functional impairment and low expectations for recovery. Until recently, treatment in the United States has largely attempted to stabilize individuals with chronic schizophrenia. The identification and promotion of evidence-based practices for schizophrenia via the Patient Outcomes Research Team, combined with international studies supporting the value of early intervention, provided the foundation for the Recovery After an Initial Schizophrenia Episode (RAISE) project...
January 12, 2018: Annual Review of Clinical Psychology
https://www.readbyqxmd.com/read/29314591/relationship-between-metacognitive-beliefs-and-psychosocial-performance-in-at-risk-states-of-psychosis-and-patients-with-first-psychotic-episodes
#9
Martin Brüne, Kim-Alisha Drommelschmidt, Seza Krüger-Özgürdal, Georg Juckel
AIMS: Improving diagnostic batteries to identify individuals at-risk for developing psychotic disorders as early as possible is an ongoing challenge in schizophrenia research. Here, we sought to explore whether metacognition in at-risk of developing psychosis would differ from that of first episode psychosis and unaffected controls and whether dysfunctional metacognitive beliefs would be associated with psychosocial functioning in the clinical groups. METHODS: Twenty-three subjects at-risk of psychosis were compared with a group of 15 first psychotic episode patients and 21 healthy controls with regard to their metacognitive beliefs and psychosocial functioning...
January 4, 2018: Early Intervention in Psychiatry
https://www.readbyqxmd.com/read/29311665/hippocampal-dysfunction-in-the-pathophysiology-of-schizophrenia-a-selective-review-and-hypothesis-for-early-detection-and-intervention
#10
J A Lieberman, R R Girgis, G Brucato, H Moore, F Provenzano, L Kegeles, D Javitt, J Kantrowitz, M M Wall, C M Corcoran, S A Schobel, S A Small
Scientists have long sought to characterize the pathophysiologic basis of schizophrenia and develop biomarkers that could identify the illness. Extensive postmortem and in vivo neuroimaging research has described the early involvement of the hippocampus in the pathophysiology of schizophrenia. In this context, we have developed a hypothesis that describes the evolution of schizophrenia-from the premorbid through the prodromal stages to syndromal psychosis-and posits dysregulation of glutamate neurotransmission beginning in the CA1 region of the hippocampus as inducing attenuated psychotic symptoms and initiating the transition to syndromal psychosis...
January 9, 2018: Molecular Psychiatry
https://www.readbyqxmd.com/read/29310912/monocyte-activation-detected-prior-to-a-diagnosis-of-schizophrenia-in-the-us-military-new-onset-psychosis-project-mnopp
#11
Natalya S Weber, Kristin L Gressitt, David N Cowan, David W Niebuhr, Robert H Yolken, Emily G Severance
Low-grade inflammation is present in some cases of schizophrenia, particularly in the early stages of this disorder. The inflammation source is not known but may be the result of dysbiotic processes occurring in the gut. We examined peripheral biomarkers of bacterial translocation, soluble CD14 (sCD14) and lipopolysaccharide binding protein (LBP), and of general inflammation, C-reactive protein (CRP), in a unique, pre-onset study of schizophrenia. This sample was composed of 80 case-control matched pairs of US military service members from whom blood samples were obtained at time of entry to service, before a psychiatric diagnosis was made...
January 5, 2018: Schizophrenia Research
https://www.readbyqxmd.com/read/29308341/neuropsychiatry-in-demyelination-disease-using-depression-as-a-prodrome-for-early-diagnosis-and-treatment-of-multiple-sclerosis
#12
EDITORIAL
Mrigank S Shail
Multiple sclerosis (MS) is an autoimmune disorder where the body attacks its own insulating myelin sheaths covering the nerve cells in the brain and spinal cord. MS patients show signs of mental illness via emotional blunting, liability, apathy, depression, irritability, and psychosis. Many psychiatrists have noted that the symptomatology of mood disorder is very similar to early signs of MS. The mechanism behind the relationship of depression with MS is not entirely understood at this point. However, through advancements in medical imaging techniques, there are now some leading explanations...
November 1, 2017: Curēus
https://www.readbyqxmd.com/read/29305854/astrocytes-in-primary-cultures-express-serine-racemase-synthesize-d-serine-and-acquire-a1-reactive-astrocyte-features
#13
Suyan Li, Yota Uno, Uwe Rudolph, Johanna Cobb, Jing Liu, Thea Anderson, Deborah Levy, Darrick T Balu, Joseph T Coyle
D-Serine is a co-agonist at forebrain N-methyl-D-aspartate receptors (NMDAR) and is synthesized by serine racemase (SR). Although D-serine and SR were originally reported to be localized to glia, recent studies have provided compelling evidence that under healthy physiologic conditions both are localized primarily in neurons. However, in pathologic conditions, reactive astrocytes can also express SR and synthesize D-serine. Since cultured astrocytes exhibit features of reactive astrocytes, we have characterized D-serine synthesis and the expression of enzymes involved in its disposition in primary glial cultures...
January 3, 2018: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29303949/psychosis-risk-syndrome-what-now
#14
Othman Sentissi, Maria A Andreou, Clotilde Moeglin, Logos Curtis, Micaela Santos Brosch
BACKGROUND: Schizophrenia is a chronic psychiatric disorder that generally begins in late adolescence or early adulthood. This early onset is often linked with a devastating lifelong impact on both the social network and work capacities of the affected subjects. Beginning in the mid-1990s, several sets of diagnostic criteria aiming to identify "high-risk" patients were developed and applied in clinical studies. Short-term rates of onset of psychosis in this subgroup of subjects ranged from 20% to 40%...
November 2017: Journal of Psychiatric Practice
https://www.readbyqxmd.com/read/29302713/psilocybin-disrupts-sensory-and-higher-order-cognitive-processing-but-not-pre-attentive-cognitive-processing-study-on-p300-and-mismatch-negativity-in-healthy-volunteers
#15
Anna Bravermanová, Michaela Viktorinová, Filip Tylš, Tomáš Novák, Renáta Androvičová, Jakub Korčák, Jiří Horáček, Marie Balíková, Inga Griškova-Bulanova, Dominika Danielová, Přemysl Vlček, Pavel Mohr, Martin Brunovský, Vlastimil Koudelka, Tomáš Páleníček
RATIONALE: Disruption of auditory event-related evoked potentials (ERPs) P300 and mismatch negativity (MMN), electrophysiological markers of attentive and pre-attentive cognitive processing, is repeatedly described in psychosis and schizophrenia. Similar findings were observed in a glutamatergic model of psychosis, but the role of serotonergic 5-HT2A receptors in information processing is less clear. OBJECTIVES: We studied ERPs in a serotonergic model of psychosis, induced by psilocybin, a psychedelic with 5-HT2A/C agonistic properties, in healthy volunteers...
January 5, 2018: Psychopharmacology
https://www.readbyqxmd.com/read/29301013/urban-birth-urban-living-and-work-migrancy-differential-effects-on-psychotic-experiences-among-young-chinese-men
#16
Jeremy W Coid, Junmei Hu, Constantinos Kallis, Yuan Ping, Juying Zhang, Yueying Hu, Tianqiang Zhang, Rafael Gonzalez, Simone Ullrich, Peter B Jones, James B Kirkbride
Background: Urban birth and urban living are associated with increased risk of schizophrenia but less is known about effects on more common psychotic experiences (PEs). China has undergone the most rapid urbanization of any country which may have affected the population-level expression of psychosis. We therefore investigated effects of urbanicity, work migrancy, and residential stability on prevalence and severity of PEs. Methods: Population-based, 2-wave household survey of psychiatric morbidity and health-related behavior among 4132 men, 18-34 years of age living in urban and rural Greater Chengdu, Sichuan Province, China...
December 29, 2017: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/29289662/th17-t-regulator-cell-balance-and-nk-cell-numbers-in-relation-to-psychosis-liability-and-social-stress-reactivity
#17
J Counotte, H A Drexhage, J M Wijkhuijs, R Pot-Kolder, V Bergink, H W Hoek, W Veling
BACKGROUND: Psychotic disorders are characterized by a deranged immune system, including altered number and function of Natural Killer (NK) and T cells. Psychotic disorders arise from an interaction between genetic vulnerability and exposure to environmental risk factors. Exposure to social adversity during early life is particularly relevant to psychosis risk and is thought to increase reactivity to subsequent minor daily social stressors. Virtual reality allows controlled experimental exposure to virtual social stressors...
December 28, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29287626/a-comparison-of-conversion-rates-clinical-profiles-and-predictors-of-outcomes-in-two-independent-samples-of-individuals-at-clinical-high-risk-for-psychosis-in-china
#18
Huijun Li, TianHong Zhang, LiHua Xu, YingYing Tang, HuiRu Cui, YanYan Wei, XiaoChen Tang, Kristen A Woodberry, Daniel I Shapiro, ChunBo Li, Larry J Seidman, JiJun Wang
OBJECTIVE: In a previous epidemiological study, we reported on the ascertainment and outcomes of "clinical high risk" (CHR) individuals at the Shanghai Mental Health Center (SMHC, "2011 cohort"). The current study compares demographic and clinical characteristics, including conversion rates, of this sample with a subsequently recruited, independent CHR sample and with published data from western samples. METHOD: A new sample of 100 CHR subjects ("2013 cohort") was selected based on screening and semi-structured interviews...
December 26, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/29287238/detection-of-early-psychotic-symptoms-validation-of-the-spanish-version-of-the-symptom-onset-in-schizophrenia-sos-inventory
#19
Gisela Mezquida, Bibiana Cabrera, Anabel Martínez-Arán, Eduard Vieta, Miguel Bernardo
The period of subclinical signs that precedes the onset of psychosis is referred to as the prodrome or high-risk mental state. The "Symptom Onset in Schizophrenia (SOS) inventory" is an instrument to characterize and date the initial symptoms of a psychotic illness. The present study aims to provide reliability and validity data for clinical and research use of the Spanish version of the SOS. Thirty-six participants with a first-episode of psychosis meeting DSM-IV criteria for schizophrenia/schizoaffective/schizophreniform disorder were administered the translated SOS and other clinical assessments...
December 14, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/29282135/implementation-of-a-relatives-toolkit-impart-study-an-iterative-case-study-to-identify-key-factors-impacting-on-the-implementation-of-a-web-based-supported-self-management-intervention-for-relatives-of-people-with-psychosis-or-bipolar-experiences-in-a-national
#20
Fiona Lobban, Victoria Appleton, Duncan Appelbe, Johanna Barraclough, Julie Bowland, Naomi R Fisher, Sheena Foster, Sonia Johnson, Elizabeth Lewis, Céu Mateus, Barbara Mezes, Elizabeth Murray, Puffin O'Hanlon, Vanessa Pinfold, Jo Rycroft-Malone, Ron Siddle, Jo Smith, Chris J Sutton, Andrew Walker, Steven H Jones
BACKGROUND: Web-based interventions to support people to manage long-term health conditions are available and effective but rarely used in clinical services. The aim of this study is to identify critical factors impacting on the implementation of an online supported self-management intervention for relatives of people with recent onset psychosis or bipolar disorder into routine clinical care and to use this information to inform an implementation plan to facilitate widespread use and inform wider implementation of digital health interventions...
December 28, 2017: Implementation Science: IS
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