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First-episode schizophrenia

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https://www.readbyqxmd.com/read/29772306/vascular-endothelial-growth-factor-in-patients-with-schizophrenia-a-systematic-review-and-meta-analysis
#1
REVIEW
Błażej Misiak, Filip Stramecki, Bartłomiej Stańczykiewicz, Dorota Frydecka, Alba Lubeiro
BACKGROUND: Accumulating evidence indicates that schizophrenia might be accompanied by abnormal vascularization. Vascular endothelial growth factor (VEGF) is one of key molecules involved in the development of vessels with vasodilatory activities. OBJECTIVES: We aimed to perform a systematic review and meta-analysis of studies investigating serum or plasma levels of VEGF in patients with schizophrenia and first-episode psychosis (FEP). METHODS: Electronic databases were searched from their inception until 18th Apr 2018...
May 14, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29763834/parkinsonism-is-associated-to-fronto-caudate-disconnectivity-and-cognition-in-schizophrenia
#2
Vicente Molina, Alba Lubeiro, Jorge Blanco, José A Blanco, Margarita Rodríguez, Alicia Rodríguez-Campos, Rodrigo de Luis-García
The present work studies the possible relation of parkinsonism and fronto-caudate dysconnectivity, as well as its relation to cognition in schizophrenia patients. We assessed parkinsonism using Simpson-Angus scale and prefronto-caudate connectivity using diffusion magnetic resonance in 22 schizophrenia patients (11 first-episodes) and 14 healthy controls. Fractional anisotropy was calculated for the white matter tracts directly linking rostral middle prefrontal (RMPF) and superior medial prefrontal (SMPF) regions with caudate nucleus...
May 8, 2018: Psychiatry research. Neuroimaging
https://www.readbyqxmd.com/read/29761952/-automatic-classification-of-first-episode-drug-naive-schizophrenia-with-multi-modal-magnetic-resonance-imaging
#3
Yongzhe Yang, Yue Zhang, Fengchun Wu, Xiaobing Lu, Yuping Ning, Biao Huang, Xin Du, Chengwei Li, Kaixi Wang, Xiaoming Wu, Kai Wu
A great number of studies have demonstrated the structural and functional abnormalities in chronic schizophrenia (SZ) patients. However, few studies analyzed the differences between first-episode, drug-naive SZ (FESZ) patients and normal controls (NCs). In this study, we recruited 44 FESZ patients and 56 NCs, and acquired their multi-modal magnetic resonance imaging (MRI) data, including structural and resting-state functional MRI data. We calculated gray matter volume (GMV), regional homogeneity (ReHo), amplitude of low frequency fluctuation (ALFF), and degree centrality (DC) of 90 brain regions, basing on an automated anatomical labeling (AAL) atlas...
October 1, 2017: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
https://www.readbyqxmd.com/read/29748629/abnormal-reward-prediction-error-signalling-in-antipsychotic-naive-individuals-with-first-episode-psychosis-or-clinical-risk-for-psychosis
#4
Anna O Ermakova, Franziska Knolle, Azucena Justicia, Edward T Bullmore, Peter B Jones, Trevor W Robbins, Paul C Fletcher, Graham K Murray
Ongoing research suggests preliminary, though not entirely consistent, evidence of neural abnormalities in signalling prediction errors in schizophrenia. Supporting theories suggest mechanistic links between the disruption of these processes and the generation of psychotic symptoms. However, it is unknown at what stage in the pathogenesis of psychosis these impairments in prediction-error signalling develop. One major confound in prior studies is the use of medicated patients with strongly varying disease durations...
April 5, 2018: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29740360/the-importance-of-social-cognition-in-improving-functional-outcomes-in-schizophrenia
#5
REVIEW
Afzal Javed, Asha Charles
Social cognition has become recognized as an important driver of functional outcomes and overall recovery in patients with schizophrenia, mediating the relationship between neurocognition and social functioning. Since antipsychotic therapy targeting remission of clinical symptoms has been shown to have a limited impact on social cognition, there has been an increasing drive to develop therapeutic strategies to specifically improve social cognition in schizophrenia. We sought to review current evidence relating to social cognition in schizophrenia and its clinical implications, including interventions designed to target the core domains of social cognition (emotion processing, theory of mind, attributional bias, and social perception) as a means of improving functional outcomes and thereby increasing the likelihood of recovery...
2018: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/29740359/profiling-of-amino-acids-and-their-derivatives-biogenic-amines-before-and-after-antipsychotic-treatment-in-first-episode-psychosis
#6
Liisa Leppik, Kärt Kriisa, Kati Koido, Kadri Koch, Kärolin Kajalaid, Liina Haring, Eero Vasar, Mihkel Zilmer
Schizophrenia (SCH) is a heterogeneous disorder, deriving from a potential multitude of etiopathogenetic factors. During the past few years there has been an increasing interest in the role of circulating amino acids (AAs) and biogenic amines (BAs) in the pathophysiology of SCH. In the present study, we aimed to provide an insight into the potential role of alterations in levels of AAs and BAs as well as examine their more specific metabolic shifts in relation to early stage of SCH. We measured 21 AAs and 17 BAs in serum samples of patients with first-episode psychosis (FEP) before and after 7-month antipsychotic treatment in comparison to control subjects (CSs)...
2018: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/29736883/abnormalities-of-regional-homogeneity-and-its-correlation-with-clinical-symptoms-in-na%C3%A3-ve-patients-with-first-episode-schizophrenia
#7
Xiaoxin Zhao, Jingjing Yao, Yiding Lv, Xinyue Zhang, Chongyang Han, Lijun Chen, Fangfang Ren, Zhuma Jin, Yuan Li, Yuxiu Sui
Several resting-state neuroimaging studies have indicated abnormal regional homogeneity (ReHo) in chronic schizophrenia; however, little work has been conducted to investigate naïve patients with first-episode schizophrenia (FES). Even less investigated is the association between ReHo measures and clinical symptom severity in naïve patients with FES. The current study evaluated ReHo alterations in whole brain, and assessed the correlations between ReHo measures and clinical variables in naïve patients with FES...
May 7, 2018: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/29736129/analysis-of-misdiagnosis-of-bipolar-disorder-in-an-outpatient-setting
#8
Hui Shen, Li Zhang, Chuchen Xu, Jinling Zhu, Meijuan Chen, Yiru Fang
Background: Bipolar disorder is a mental illness with a high misdiagnosis rate and commonly misdiagnosed as other mental disorders including depression, schizophrenia, anxiety disorders, obsessive-compulsive disorders, and personality disorders, resulting in the mistreatment of clinical symptoms and increasing of recurrent episodes. Aims: To understand the reasons for misdiagnosis of bipolar disorder in an outpatient setting in order to help clinicians more clearly identify the disease and avoid diagnostic errors...
April 25, 2018: Shanghai Archives of Psychiatry
https://www.readbyqxmd.com/read/29735938/metabolic-syndrome-in-first-episode-schizophrenia-based-on-the-national-mental-health-registry-of-schizophrenia-nmhr-in-a-general-hospital-in-malaysia-a-10-year-retrospective-cohort-study
#9
Albert Muh Haur Lee, Chong Guan Ng, Ong Hui Koh, Jesjeet Singh Gill, Salina Abdul Aziz
Schizophrenia has been linked with various medical comorbidities, particularly metabolic syndrome. The number of studies on this aspect is lacking in Malaysia. (1) Objective: To investigate metabolic syndrome rates and its associated factors. (2) Method: This is the first 10-year retrospective-outcome study of patients with first episode schizophrenia in Malaysia. Out of 394 patients diagnosed with first episode schizophrenia and registered with the National Mental Health Registry of Schizophrenia (NMHR) in the General Hospital Kuala Lumpur (GHKL) in 2004⁻2005, 174 patients consented to participate in the study...
May 7, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29730449/resilience-trajectories-to-full-recovery-in-first-episode-schizophrenia
#10
Anne-Kari Torgalsbøen, Susie Fu, Nikolai Czajkowski
BACKGROUND: Resilience is successful adaptation despite adversity. This personality trait has the potential to add new knowledge to how to achieve a successful outcome, but resilience has been understudied in schizophrenia. The objective of the present study is to investigate if there are significant differences in resilience development among fully recovered and non-recovered patients with first episode schizophrenia (FES). METHODS: In the ongoing Oslo Schizophrenia Recovery Study spanning 10 years, 28 first-episode patients are interviewed and assessed yearly with comprehensive criteria of full recovery, a measure of social and role functioning and resilience, the Connor-Davidson Resilience Scale...
May 3, 2018: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/29730395/profiling-inflammatory-signatures-of-schizophrenia-a-cross-sectional-and-meta-analysis-study
#11
Dorota Frydecka, Małgorzata Krzystek-Korpacka, Alba Lubeiro, Filip Stramecki, Bartłomiej Stańczykiewicz, Jan Aleksander Beszłej, Patryk Piotrowski, Kamila Kotowicz, Monika Szewczuk-Bogusławska, Edyta Pawlak-Adamska, Błażej Misiak
We aimed to profile a broad panel of inflammatory markers in patients with schizophrenia and healthy controls. Additionally, we performed a meta-analysis of chemokine alterations that have not been subjected to quantitative synthesis so far. We recruited 78 patients with schizophrenia and 78 healthy controls, and measured inflammatory markers using the Luminex technology. After adjustment for multiple testing, we found elevated levels of interleukin (IL)-1 receptor antagonist (IL-1RA), IL-6, IL-7, IL-8, IL-9, IL-10, IL-13, interferon-γ, eotaxin-1, granulocyte-macrophage colony-stimulating factor (GM-CSF), monocyte chemoattractant protein-1 (MCP-1), platelet-derived growth factor with two B subunits (PDGF-BB), macrophage inflammatory protein (MIP)-1α, MIP-1β, vascular endothelial growth factor A (VEGF-A) and RANTES in multiple-episode schizophrenia (MES) patients...
May 3, 2018: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29730044/association-between-catechol-o-methyltransferase-genetic-variation-and-functional-connectivity-in-patients-with-first-episode-schizophrenia
#12
Hongyan Wang, Bin Zhang, Botao Zeng, Yingying Tang, Tianhong Zhang, Shanshan Zhao, Chunbo Li, Jijun Wang, Donald C Goff
Dopamine in the prefrontal cortex (PFC) plays an important role in cognitive performance and regulates by catechol-O-methyltransferase (COMT) expression. To clarify the effect of COMT genotype on cognitive function in patients with schizophrenia, we performed DNA genotyping, cognitive evaluations, and functional magnetic resonance imaging (fMRI) in antipsychotic-naïve patients with first-episode schizophrenia (FES) and matched healthy control subjects. We found that all cognitive domains were impaired in patients with FES compared with healthy subjects...
May 3, 2018: Schizophrenia Research
https://www.readbyqxmd.com/read/29726625/sharing-information-about-diagnosis-and-outcome-of-first-episode-psychosis-in-patients-presenting-to-early-intervention-services
#13
Saeed Farooq, Debra J Green, Swaran P Singh
AIM: First-episode psychosis (FEP) can be a serious and debilitating disease, but there is limited literature on how to inform patients and carers about its diagnosis and outcome. We aimed to examine the attitudes, practices and views of clinicians working in Early Intervention Service about sharing information on diagnosis and outcome of FEP. METHODS: A 26-item questionnaire was sent electronically to clinical staff who have been involved in the discussion of FEP diagnosis in Early Intervention Services in the West Midlands, UK...
May 4, 2018: Early Intervention in Psychiatry
https://www.readbyqxmd.com/read/29723454/-aripiprazole-for-drug-induced-sexual-dysfunction-in-schizophrenic-males
#14
Li-Juan Gao, Hua-Gui Guo, Zhen-Tao Liang, Xiao-Xiao Zhong, Jin-Cai Zhu, Yu Yang
Objective: To investigate the clinical effects of aripiprazole on sexual dysfunction induced by amisulpride or risperidone in male patients with schizophrenia. METHODS: This study included 75 male patients with drug-induced secondary sexual dysfunction after treated with amisulpride or risperidone for first-episode schizophrenia between October 2014 and October 2016. We substituted aripiprazole for amisulpride or risperidone, gradually increased the dose from 10 to 30 mg/d within 2 weeks, and maintained 30 mg/d from the 3rd week...
July 2017: Zhonghua Nan Ke Xue, National Journal of Andrology
https://www.readbyqxmd.com/read/29723151/-the-effect-of-antipsychotic-drug-on-monoamine-receptors-in-peripheral-blood-mononuclear-cells-affinity-linked-mechanism
#15
A E Taraskina, A M Zabotina, R F Nasyrova, D N Sosin, K A Sosina, E E Ershov, M N Grunina, E M Krupitsky
Schizophrenia is one of the most serious and common mental disorders, which is characterized by high levels of pathogenic heterogeneity as well as neuroimmune abnormalities, which require treatment with antipsychotic drugs. Monoamines are one of the key neurotransmitters which play an important role in neuroimmune interactions of the human organism. We suggest that the quantity of the monoamine receptors on mononuclear cells of the peripheral blood (PBMCs) can be associated with the cytokine profile of patients...
March 2018: Biomedit︠s︡inskai︠a︡ Khimii︠a︡
https://www.readbyqxmd.com/read/29721727/schizotypy-and-smooth-pursuit-eye-movements-as-potential-endophenotypes-of-obsessive-compulsive-disorder
#16
Katharina Bey, Inga Meyhöfer, Leonhard Lennertz, Rosa Grützmann, Stephan Heinzel, Christian Kaufmann, Julia Klawohn, Anja Riesel, Ulrich Ettinger, Norbert Kathmann, Michael Wagner
Patients with obsessive-compulsive disorder (OCD) show dysfunctions of the fronto-striatal circuitry, which imply corresponding oculomotor deficits including smooth pursuit eye movements (SPEM). However, evidence for a deficit in SPEM is inconclusive, with some studies reporting reduced velocity gain while others did not find any SPEM dysfunctions in OCD patients. Interestingly, psychosis-like traits have repeatedly been linked to both OCD and impaired SPEM. Here, we examined a large sample of n = 168 patients with OCD, n = 93 unaffected first-degree relatives and n = 171 healthy control subjects to investigate whether elevated levels of schizotypy and SPEM deficits represent potential endophenotypes of OCD...
May 2, 2018: European Archives of Psychiatry and Clinical Neuroscience
https://www.readbyqxmd.com/read/29707910/disagreement-between-service-users-and-clinicians-assessment-of-physical-health-during-early-psychosis
#17
Laoise Renwick, Jonathan Drennan, Ann Sheridan, John Lyne, Anthony Kinsella, Eadbhard O' Callaghan, Mary Clarke
AIMS: Physical illnesses account for the majority of excess deaths following psychosis; access to care and treatment is inequitable and schizophrenia has now been dubbed the life-shortening disease. We compared service-users and clinician's perspectives of their physical health assuming that one of the fundamental issues in prompting screening and treatment is the view that health is poor. METHODS: Data comprising sample characteristics, diagnosis, symptoms, insight, antecedents to psychosis and physical health perspectives were obtained prospectively as part of a larger epidemiological study of first-episode psychosis...
April 30, 2018: Early Intervention in Psychiatry
https://www.readbyqxmd.com/read/29706446/the-effect-of-implementation-of-an-early-detection-team-a-nationwide-register-based-study-of-characteristics-and-help-seeking-behavior-in-first-episode-schizophrenia-in-denmark
#18
Lene Halling Hastrup, Ulrik Helt Haahr, Julie Nordgaard, Erik Simonsen
BACKGROUND: In an effort to make people with signs of psychosis seek help as early as possible, Region Zealand launched in 2012 an early detection team project as the first and only in Denmark. The project consisted of a combination of easy access and an information campaign targeting the public. This nation-wide study examined characteristics and help-seeking behavior of patients with first-episode schizophrenia (FES) in the early detection region in comparison with other Danish regions...
April 26, 2018: Schizophrenia Research
https://www.readbyqxmd.com/read/29705712/abnormal-auditory-evoked-gamma-band-oscillations-in-first-episode-schizophrenia-during-both-eye-open-and-eye-close-states
#19
Junjie Wang, Yingying Tang, Adrian Curtin, Raymond C K Chan, Ya Wang, Hui Li, Tianhong Zhang, Zhenying Qian, Qian Guo, Yu Li, Xu Liu, Xiaochen Tang, Jijun Wang
Abnormal auditory steady state response (ASSR) is a typical finding among schizophrenia patients, which is thought to directly reflect deficient gamma band oscillations in the brain. However, whether these ASSR alterations are state dependent, e.g. during eye-open or eye-closed conditions, has not yet been carefully elucidated in schizophrenia. Our study aimed to explore whether the abnormality of ASSR in patients with first-episode schizophrenia (FEP) is altered under eye-open (EO) and eye-closed (EC) states...
April 26, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29704324/voxel-wise-brain-wide-functional-connectivity-abnormalities-in-first-episode-drug-naive-patients-with-major-depressive-disorder
#20
Xilong Cui, Feng Liu, Jindong Chen, Guangrong Xie, Renrong Wu, Zhikun Zhang, Huafu Chen, Jingping Zhao, Wenbin Guo
Due to different foci and single sample across studies, abnormal functional connectivity (FC) has been implicated in the pathophysiology of major depressive disorder (MDD) with inconsistent results. The inconsistency may reflect a combination of clinical and methodological variability, which leads to limited reproducibility of these findings. The samples included 59 patients with MDD and 31 controls from Sample 1, 29 patients with MDD and 24 controls from Sample 2, and 31 patients with schizophrenia and 37 controls from Sample 3...
April 28, 2018: American Journal of Medical Genetics. Part B, Neuropsychiatric Genetics
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