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Early onset schizophrenia

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https://www.readbyqxmd.com/read/28323458/clozapine-related-tachycardia-in-an-adolescent-with-treatment-resistant-early-onset-schizophrenia
#1
Venkata Kolli, Dalton Bourke, Jeannie Ngo, Maxwell J Luber, Barbara J Coffey
No abstract text is available yet for this article.
March 2017: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/28318836/early-onset-of-cardiometabolic-risk-factor-profiles-in-drug-na%C3%A3-ve-adolescents-and-young-adults-with-first-episode-schizophrenia
#2
Desheng Zhai, Yan Lang, Yihang Feng, Yijun Liu, Gaopan Dong, Xin Wang, Ying Cao, Taizhen Cui, Chenyang Ni, Yonggan Ji, Xiaodan Zhang, Ying Zhao, Ruiling Zhang
OBJECTIVE AND METHOD: We performed a case-control study, which included antipsychotic-naïve first-episode schizophrenia (FES) of adolescents and young adults and general population controls, to investigate the early-onset cardiometabolic risk factors in FES. RESULTS: FES had more frequent lower HDL-C when compared to controls. However, the distribution of BMI and the frequency of hypercholesterolemia, elevated LDL-C, hypertriglyceridemia in FES were not significantly different to controls...
March 15, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28314733/genetics-implicate-common-mechanisms-in-autism-and-schizophrenia-synaptic-activity-and-immunity
#3
REVIEW
Xiaoming Liu, Zhengwei Li, Conghai Fan, Dongli Zhang, Jiao Chen
The diagnosis of debilitating psychiatric disorders like autism spectrum disorder (ASD) and schizophrenia (SCHZ) is on the rise. These are severe conditions that lead to social isolation and require lifelong professional care. Improved diagnosis of ASD and SCHZ provides early access to medication and therapy, but the reality is that the mechanisms and the cellular pathology underlying these conditions are mostly unknown at this time. Although both ASD and SCHZ have strong inherited components, genetic risk seems to be distributed in hundreds of variants, each conferring low risk...
March 17, 2017: Journal of Medical Genetics
https://www.readbyqxmd.com/read/28314460/schizophrenia-and-psychosis-diagnosis-current-research-trends-and-model-treatment-approaches-with-implications-for-transitional-age-youth
#4
REVIEW
Vivien Chan
This article reviews the current state of diagnosis and treatment of schizophrenia, describing the recent proliferation of research in high-risk psychosis spectrum conditions, which are different from childhood-onset and early onset schizophrenia, and findings of psychotic-like experiences in the normal population. Taken from adult and childhood literature, clinical quandaries in accurate diagnosis, and treatment gaps in co-occurring, or sometimes confounding, conditions are discussed. Thoughts on the impact of schizophrenia on an emerging adulthood trajectory are offered...
April 2017: Child and Adolescent Psychiatric Clinics of North America
https://www.readbyqxmd.com/read/28304340/neuroinflammation-and-oxidative-stress-in-psychosis-and-psychosis-risk
#5
REVIEW
Henry Barron, Sina Hafizi, Ana C Andreazza, Romina Mizrahi
Although our understanding of psychotic disorders has advanced substantially in the past few decades, very little has changed in the standard of care for these illnesses since the development of atypical anti-psychotics in the 1990s. Here, we integrate new insights into the pathophysiology with the increasing interest in early detection and prevention. First, we explore the role of N-methyl-d-aspartate receptors in a subpopulation of cortical parvalbumin-containing interneurons (PVIs). Postmortem and preclinical data has implicated these neurons in the positive and negative symptoms, as well as the cognitive dysfunction present in schizophrenia...
March 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28291864/sex-specific-cognitive-abnormalities-in-early-onset-psychosis
#6
Miguel Ruiz-Veguilla, Josefa Moreno-Granados, Maria D Salcedo-Marin, Maria L Barrigon, Maria J Blanco-Morales, Evelio Igunza, Anselmo Cañabate, Maria D Garcia, Teresa Guijarro, Francisco Diaz-Atienza, Maite Ferrin
Objectives: Brain maturation differs depending on the area of the brain and sex. Girls show an earlier peak in maturation of the prefrontal cortex. Although differences between adult females and males with schizophrenia have been widely studied, there has been less research in girls and boys with psychosis. The purpose of this study was to examine differences in verbal and visual memory, verbal working memory, auditory attention, processing speed, and cognitive flexibility between boys and girls...
January 2017: Revista Brasileira de Psiquiatria
https://www.readbyqxmd.com/read/28288547/neuropsychological-correlates-of-schizotypy-a-systematic-review-and-meta-analysis-of-cross-sectional-studies
#7
Sara Siddi, Donatella Rita Petretto, Antonio Preti
INTRODUCTION: Cognitive deficits can precede the onset of psychotic episodes and predict the onset of the illness in individuals with schizotypy traits. In some studies, high levels of schizotypy were associated with impairments in memory, attention, executive functions, and verbal fluency. This review provides a more comprehensive understanding of cognitive impairments related to schizoytpy. METHODS:  A systematic review of "schizotypy and neuropsychological measures" was conducted, and it retrieved 67 studies...
March 13, 2017: Cognitive Neuropsychiatry
https://www.readbyqxmd.com/read/28285024/shorter-telomere-length-in-people-with-schizophrenia-a-preliminary-study-from-australia
#8
Cherrie Galletly, Varinderpal S Dhillon, Dennis Liu, Ryan P Balzan, Lisa A Hahn, Michael F Fenech
Schizophrenia is a complex mental illness affecting the normal functioning of the brain, interfering with the ability to think, feel and act. It can be conceptualised as a syndrome of accelerated ageing, with early onset of cardiovascular disease and high rates of premature mortality. Telomere attrition increases with oxidative stress and is considered a biomarker of ageing. Previous studies have assessed abnormalities in telomere length in schizophrenia, but the results are inconsistent. The present study used a case-control design to assess whether people with schizophrenia have shortened telomeres, indicative of accelerated ageing...
March 8, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28259864/-an-attempt-to-identify-22q11-2-microdeletions-in-samples-of-the-hungarian-schizophrenia-dna-bank-by-multiplex-ligation-based-probe-amplification-mlpa-literature-review-methodology-and-results
#9
Izabella Klein, Katalin Szocs, Katalin Vincze, Judit Benkovits, Szilvia Somogyi, Levente Herman, Janos M Rethelyi
Schizophrenia is a severe debilitating psychiatric disorder, with a typical onset in adolescence or early adulthood. This condition is characterized by heterogeneous symptoms (hallucinations, delusions, disorganized behaviour, affective flattening, and social isolation) and a life-time prevalence of 0.5-1.2%. In spite of the efforts to uncover the etiology of the disorder, its pathogenesis and neurobiological background are poorly understood. Given the high heritability in schizophrenia, genetic research remains an important area of focus...
December 2016: Neuropsychopharmacologia Hungarica
https://www.readbyqxmd.com/read/28230711/asperger-syndrome-and-early-onset-schizophrenia-associated-with-a-novel-mecp2-deleterious-missense-variant
#10
Aurore Curie, Gaëtan Lesca, Gérald Bussy, Sabine Manificat, Valérie Arnaud, Sibylle Gonzalez, Olivier Revol, Alain Calender, Daniel Gérard, Vincent des Portes
Methyl-CpG-binding protein 2 (MECP2) deleterious variants, which are responsible for Rett syndrome in girls, are involved in a wide spectrum of developmental disabilities in males. A neuropsychiatric phenotype without intellectual disability is uncommon in patients with MECP2 deleterious variants. We report on two dizygotic twins with an MECP2-related psychiatric disorder without intellectual disability. Neuropsychological and psychiatric phenotype assessments were performed, and a genetic analysis was carried out...
February 22, 2017: Psychiatric Genetics
https://www.readbyqxmd.com/read/28219788/immersion-in-altered-experience-an-investigation-of-the-relationship-between-absorption-and-psychopathology
#11
REVIEW
Cherise Rosen, Nev Jones, Kayla A Chase, Jennifer K Melbourne, Linda S Grossman, Rajiv P Sharma
Understanding alterations in perceptual experiences as a component of the basic symptom structure of psychosis may improve early detection and the identification of subtle shifts that can precede symptom onset or exacerbation. We explored the phenomenological construct of absorption and psychotic experiences in both clinical (bipolar psychosis and schizophrenia spectrum) and non-clinical participants. Participants with psychosis endorsed significantly higher absorption compared to the non-clinical group. Absorption was positively correlated with all types of hallucinations and multiple types of delusions...
March 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/28219485/acute-antipsychotic-treatment-of-children-and-adolescents-with-schizophrenia-spectrum-disorders-a-systematic-review-and-network-meta-analysis
#12
REVIEW
Anne Katrine Pagsberg, Simon Tarp, Dorte Glintborg, Anne Dorte Stenstrøm, Anders Fink-Jensen, Christoph Ulrich Correll, Robin Christensen
OBJECTIVE: To determine the comparative efficacy and safety of antipsychotics for youth with early-onset schizophrenia using network meta-analytic methods combining direct and indirect trial data. METHOD: The authors systematically searched MEDLINE, the Cochrane Library, and clinicaltrials.gov and selected randomized controlled trials allocating youth with schizophrenia spectrum disorders to a (non-clozapine) antipsychotic versus placebo or another antipsychotic...
March 2017: Journal of the American Academy of Child and Adolescent Psychiatry
https://www.readbyqxmd.com/read/28215901/physical-health-medication-and-healthcare-utilization-among-70-year-old-people-with-schizophrenia-a-nationwide-danish-register-study
#13
Maria Brink, Anders Green, Anders Bo Bojesen, J Steven Lamberti, Yeates Conwell, Kjeld Andersen
OBJECTIVES: In light of the excess early mortality in schizophrenia, mainly due to physical illnesses, we investigated medical comorbidity, use of medication, and healthcare utilization among individuals with schizophrenia who survived into older ages to uncover potential factors contributing to their longevity. DESIGN: A nationwide register-based case-control study comparing 70-year-olds with and without schizophrenia. SETTING: Cases were drawn from the Danish Psychiatric Central Register...
January 9, 2017: American Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28213064/juvenile-treatment-with-a-novel-mglur2-agonist-mglur3-antagonist-compound-ly395756-reverses-learning-deficits-and-cognitive-flexibility-impairments-in-adults-in-a-neurodevelopmental-model-of-schizophrenia
#14
Meng-Lin Li, Yelena Gulchina, Sarah A Monaco, Bo Xing, Brielle R Ferguson, Yan-Chun Li, Feng Li, Xi-Quan Hu, Wen-Jun Gao
Schizophrenia (SCZ) is a neurodevelopmental psychiatric disorder, in which cognitive function becomes disrupted at early stages of the disease. Although the mechanisms underlying cognitive impairments remain unclear, N-methyl-D-aspartate receptors (NMDAR) hypofunctioning in the prefrontal cortex (PFC) has been implicated. Moreover, cognitive symptoms in SCZ are usually unresponsive to treatment with current antipsychotics and by onset, disruption of the dopamine system, not NMDAR hypofunctioning, dominates the symptoms...
February 16, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28192769/disorganization-at-the-stage-of-schizophrenia-clinical-outcome-clinical-biological-study
#15
A Nestsiarovich, V Obyedkov, H Kandratsenka, M Siniauskaya, I Goloenko, N Waszkiewicz
BACKGROUND: According to the multidimensional model of schizophrenia, three basic psychopathological dimensions constitute its clinical structure: positive symptoms, negative symptoms and disorganization. The latter one is the newest and the least studied. Our aim was to discriminate disorganization in schizophrenia clinical picture and to identify its distinctive biological and socio-psychological particularities and associated genetic and environmental factors. METHODS: We used SAPS/SANS psychometrical scales, scales for the assessment of patient's compliance, insight, social functioning, life quality...
December 30, 2016: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/28131598/early-motor-developmental-milestones-and-schizophrenia-a-systematic-review-and-meta-analysis
#16
S Filatova, H Koivumaa-Honkanen, N Hirvonen, A Freeman, I Ivandic, T Hurtig, G M Khandaker, P B Jones, K Moilanen, J Miettunen
The neurodevelopmental hypothesis of schizophrenia proposes that impaired brain development is a cause of the illness. Early motor developmental milestones, such as learning to walk, are predictors of later schizophrenia but studies have not been systematically reviewed. The aim of the present systematic review and meta-analysis was to explore the association between early motor developmental milestones and the risk of adult schizophrenia. In addition, we updated a systematic review on motor function and risk of schizophrenia...
January 25, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28109666/diminished-auditory-sensory-gating-during-active-auditory-verbal-hallucinations
#17
Robert J Thoma, Andrew Meier, Jon Houck, Vincent P Clark, Jeffrey D Lewine, Jessica Turner, Vince Calhoun, Julia Stephen
Auditory sensory gating, assessed in a paired-click paradigm, indicates the extent to which incoming stimuli are filtered, or "gated", in auditory cortex. Gating is typically computed as the ratio of the peak amplitude of the event related potential (ERP) to a second click (S2) divided by the peak amplitude of the ERP to a first click (S1). Higher gating ratios are purportedly indicative of incomplete suppression of S2 and considered to represent sensory processing dysfunction. In schizophrenia, hallucination severity is positively correlated with gating ratios, and it was hypothesized that a failure of sensory control processes early in auditory sensation (gating) may represent a larger system failure within the auditory data stream; resulting in auditory verbal hallucinations (AVH)...
January 18, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28102978/pretreatment-cardiometabolic-status-in-youth-with-early-onset-psychosis-baseline-results-from-the-tea-trial
#18
Karsten G Jensen, Christoph U Correll, Ditte Rudå, Dea G Klauber, Marie Stentebjerg-Olesen, Birgitte Fagerlund, Jens Richardt Møllegaard Jepsen, Anders Fink-Jensen, Anne Katrine Pagsberg
OBJECTIVE: To describe pretreatment cardiometabolic constitution in children and adolescents with first-episode psychosis (FEP). METHODS: Baseline cardiometabolic assessment was performed in youths aged 12-17 years with FEP entering the Tolerability and Efficacy of Antipsychotics (TEA) trial and matched healthy controls. Patients were included between June 10, 2010, and January 29, 2014. ICD-10 was used as the diagnostic classification system. Cardiometabolic risk markers were compared between patients versus controls and antipsychotic-naive versus antipsychotic-exposed patients...
January 17, 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/28096883/reconsidering-clinical-staging-model-a-case-of-genetic-high-risk-for-schizophrenia
#19
Tae Young Lee, Minah Kim, Sung Nyun Kim, Jun Soo Kwon
The clinical staging model is considered a useful and practical method not only in dealing with the early stage of psychosis overcoming the debate about diagnostic boundaries but also in emerging mood disorder. However, its one limitation is that it cannot discriminate the heterogeneity of individuals at clinical high risk for psychosis, but lumps them all together. Even a healthy offspring of schizophrenia can eventually show clinical symptoms and progress to schizophrenia under the influence of genetic vulnerability and environmental stress even after the peak age of onset of schizophrenia...
January 2017: Psychiatry Investigation
https://www.readbyqxmd.com/read/28096881/design-and-methodology-of-the-korean-early-psychosis-cohort-study
#20
Sung-Wan Kim, Bong Ju Lee, Jung Jin Kim, Je-Chun Yu, Kyu Young Lee, Seung-Hee Won, Seung-Hwan Lee, Seung-Hyun Kim, Shi Hyun Kang, Young-Chul Chung
The present study details the rationale and methodology of the Korean Early Psychosis Cohort Study (KEPS), which is a clinical cohort investigation of first episode psychosis patients from a Korean population. The KEPS is a prospective naturalistic observational cohort study that follows the participants for at least 2 years. This study includes patients between 18 and 45 years of age who fulfill the criteria for one of schizophrenia spectrum and other psychotic disorders according to the diagnostic criteria of DSM-5...
January 2017: Psychiatry Investigation
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