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First-episode schizophrenia

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https://www.readbyqxmd.com/read/28527566/abnormalities-in-high-energy-phosphate-metabolism-in-first-episode-bipolar-disorder-measured-using-31-p-magnetic-resonance-spectroscopy
#1
Fei Du, Cagri Yuksel, Virginie-Anne Chouinard, Polly Huynh, Kyle Ryan, Bruce M Cohen, Dost Öngür
BACKGROUND: Brain energy metabolism is critical for supporting synaptic function and information processing. A growing body of evidence suggests abnormalities in brain bioenergetics in psychiatric disorders, including both bipolar disorder (BD) and schizophrenia. (31)P magnetic resonance spectroscopy provides a noninvasive window into these processes in vivo. Using this approach, we previously showed that patients with BD show normal adenosine triphosphate (ATP) and phosphocreatine levels at rest but cannot maintain normal ATP levels in the visual cortex during times of high energy demand (photic stimulation)...
April 7, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28526280/an-overview-of-medical-risk-factors-for-childhood-psychosis-implications-for-research-and-treatment
#2
REVIEW
Marianna Giannitelli, Angèle Consoli, Marie Raffin, Renaud Jardri, Douglas F Levinson, David Cohen, Claudine Laurent-Levinson
OBJECTIVE: Psychotic disorders in childhood and early adolescence often progress to chronic schizophrenia, but in many cases there are diagnosable medical and genetic causes or risk factors. We reviewed our clinical experience and the relevant literature to identify these factors and to define their clinical features, appropriate work-up and treatment. METHOD: We reviewed the results of comprehensive medical evaluations of 160 psychotic children and adolescents in our center...
May 16, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28523839/algorithm-based-pharmacotherapy-for-first-episode-schizophrenia-involuntarily-hospitalized-a-retrospective-analysis-of-real-world-practice
#3
Bunta Yoshimura, Kojiro Sato, Manabu Takaki, Norihito Yamada
BACKGROUND: Little is known about the clinical outcomes of severely ill patients with first-episode schizophrenia spectrum disorders (FES) who are considered to lack the capacity to consent to clinical trials. We investigated the feasibility of an algorithm-based pharmacotherapy (ABP) and clinical outcomes of patients with FES involuntarily hospitalized and treated with ABP. METHODS: We conducted a retrospective chart review of 160 patients admitted involuntarily between October 2012 and October 2015...
May 19, 2017: Early Intervention in Psychiatry
https://www.readbyqxmd.com/read/28520931/altered-white-matter-connectivity-within-and-between-networks-in-antipsychotic-naive-first-episode-schizophrenia
#4
Fei Li, Su Lui, Li Yao, Gong-Jun Ji, Wei Liao, John A Sweeney, Qiyong Gong
Analyzing the schizophrenia connectome can identify illness-related alterations in connectivity across the brain. An important question that remains unanswered is whether connectivity alterations are already evident at the onset of illness, before treatment with antipsychotic medication and possible influences of neuroprogressive or secondary alterations related to chronic illness duration. In the present study, diffusion tensor imaging and deterministic fiber tractography were performed with 137 antipsychotic-naive first-episode schizophrenia patients and 113 matched healthy controls...
May 17, 2017: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/28506707/complex-mismatch-negativity-to-tone-pair-deviants-in-long-term-schizophrenia-and-in-the-first-episode-schizophrenia-spectrum
#5
Dean F Salisbury, Alexis G McCathern, Brian A Coffman, Timothy K Murphy, Sarah M Haigh
Mismatch negativity (MMN) is an event-related potential to stimulus change. MMN to infrequent deviant tones that differs in a simple physical parameter from repetitive standard tones is reduced in patients with long-term schizophrenia (Sz; d=~1). However, this simple MMN is not uniformly reduced at the first-episode of schizophrenia-spectrum psychosis (FESz; d<0.1 for pitch; <0.4 for duration). Deviant stimuli that violate pattern rules also evoke MMN. This complex MMN is evoked by deviations in the relation of sounds to each other...
May 12, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28499897/reduced-language-lateralization-in-first-episode-schizophrenia-a-near-infrared-spectroscopy-study
#6
Po-Han Chou, Wei-Hao Lin, Wang-Rung Li, Chih-Mao Huang, Chia-Wei Sun
BACKGROUND: Diminished functional lateralization in language-related areas is found in chronic schizophrenia (SZ). However, whether reduced lateralization exists at the early stage of SZ remains unclear. The present study aimed to investigate language lateralization in first episode schizophrenia (FES) using near infrared spectroscopy (NIRS) during a letter version of verbal fluency test (VFT). METHODS: A total of 28 FES patients and 33 healthy controls (HCs) underwent NIRS while performing a VFT...
May 9, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28490910/optimizing-psychosocial-interventions-in-first-episode-psychosis-current-perspectives-and-future-directions
#7
REVIEW
Nicholas Jk Breitborde, Aubrey M Moe, Arielle Ered, Lauren M Ellman, Emily K Bell
Psychotic-spectrum disorders such as schizophrenia, schizoaffective disorder, and bipolar disorder with psychotic features are devastating illnesses accompanied by high levels of morbidity and mortality. Growing evidence suggests that outcomes for individuals with psychotic-spectrum disorders can be meaningfully improved by increasing the quality of mental health care provided to these individuals and reducing the delay between the first onset of psychotic symptoms and the receipt of adequate psychiatric care...
2017: Psychology Research and Behavior Management
https://www.readbyqxmd.com/read/28485998/barriers-to-seeking-early-psychiatric-treatment-amongst-first-episode-psychosis-patients-a-qualitative-study
#8
Abd Alhadi Hasan, Mahmoud Musleh
AIMS: The aim of this study was to explore the family members' determinant of the delay in seeking psychiatric care to patients diagnosed with psychosis. METHODS: Qualitative semi-structured interviews were carried out with twenty-seven family members of patients with psychosis at psychiatric outpatient clinics in Amman, Jordan. RESULTS: The findings revealed that perceived stigma and fears about being labelled are the main barriers to requesting early psychiatric health care...
May 9, 2017: Issues in Mental Health Nursing
https://www.readbyqxmd.com/read/28484349/one-year-follow-up-of-patients-with-a-diagnosis-of-first-episode-psychosis
#9
Atena Enderami, Fatemeh Sheikh Monesi, Mehran Zarghami
INTRODUCTION: Early diagnosis of symptoms related to psychotic disorders causes hyper responsiveness, recurrence reduction and quality of life improvement. The aim of this study was one-year follow-up of the clinical course and outcomes of hospitalized patients with first episode psychotic disorders and detection of factors affecting consequences. METHODS: This longitudinal descriptive study was conducted during 2012 to 2013 on hospitalized patients at Zare Hospital in Sari, Iran, with any psychotic symptoms and with diagnosis of first episode psychosis...
March 2017: Materia Socio-medica
https://www.readbyqxmd.com/read/28482196/auditory-and-non-auditory-hallucinations-in-first-episode-psychosis-differential-associations-with-diverse-clinical-features
#10
Chiara Galletti, Enrico Paolini, Alfonso Tortorella, Michael T Compton
Data from 247 first-episode psychosis patients were used to explore associations between types of hallucinations and nine diverse clinical characteristics. Psychopathology was rated using the Scale for the Assessment of Positive Symptoms and Scale for the Assessment of Negative Symptoms (SANS). Childhood adversity was assessed with seven instruments; family history with an adapted version of the Family Interview for Genetic Studies; age at onset of psychosis and duration of untreated psychosis (DUP) with the Symptom Onset in Schizophrenia inventory; and insight with the Birchwood Insight Scale...
April 24, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28479528/-voxel-based-morphometry-for-schizophrenia-a-review
#11
Kiyotaka Nemoto
Various imaging studies have employed voxel based morphometry (VBM) to detect local volume reductions in schizophrenia. Indeed, the first study of VBM was applied to patients with schizophrenia. Patients with schizophrenia show reduced volume in frontal, temporal (especially superior temporal gyrus, parahippocampal gyrus, and amygdala), and limbic regions (including insula and anterior cingulate cortex). Patients also show an increased volume in striatal regions. Even patients with first-episode show volume reduction and the reduced regions extend in accordance with the pathological process, which supports both the neurodevelopmental hypothesis and the neurodegenerative hypothesis...
May 2017: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/28476336/abnormal-neural-activity-as-a-potential-biomarker-for-drug-naive-first-episode-adolescent-onset-schizophrenia-with-coherence-regional-homogeneity-and-support-vector-machine-analyses
#12
Yi Liu, Yan Zhang, Luxian Lv, Renrong Wu, Jingping Zhao, Wenbin Guo
BACKGROUND: Patients with adolescent-onset schizophrenia (AOS) hold the same but severe form of symptoms with adult-onset schizophrenia, and with worse outcome and poor treatment response to antipsychotics. Several dominant brain regions of schizophrenia patients show significantly abnormal structural and functional connectivity during resting-state scans. However, coherence regional homogeneity (Cohe-ReHo) in drug-naive first-episode patients with AOS remains unclear. METHOD: A total of 48 drug-naive first-episode AOS outpatients and 31 healthy controls underwent resting-state functional magnetic resonance scans...
May 2, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28464965/risk-of-transition-to-schizophrenia-following-first-admission-with-substance-induced-psychotic-disorder-a-population-based-longitudinal-cohort-study
#13
H L Alderson, D M Semple, C Blayney, F Queirazza, V Chekuri, S M Lawrie
BACKGROUND: The potential for drugs of abuse to induce acute psychotic symptoms is well recognised. However, the likelihood of transition from initial substance-induced psychotic disorder (SIPD) to chronic psychosis is much less well understood. This study investigated the rate of SIPD transition to schizophrenia (F20), the time to conversion and other possible related factors. METHODS: Using data from the Scottish Morbidity Record, we examined all patients (n = 3486) since their first admission to psychiatric hospital with a diagnosis of SIPD [International Classification of Diseases, Tenth Revision (ICD-10) codes F10-F19, with third digit five] from January 1997 to July 2012...
May 3, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28463748/using-short-range-and-long-range-functional-connectivity-to-identify-schizophrenia-with-a-family-based-case-control-design
#14
Wenbin Guo, Feng Liu, Jindong Chen, Renrong Wu, Lehua Li, Zhikun Zhang, Huafu Chen, Jingping Zhao
Abnormal short-range and long-range functional connectivities (FCs) have been implicated in the neurophysiology of schizophrenia. This study was conducted to examine the potential of short-range and long-range FCs for differentiating the patients from the controls with a family-based case-control design. Twenty-eight first-episode, drug-naive patients with schizophrenia, 28 unaffected siblings of the patients (family-based controls, FBCs), and 40 healthy controls (HCs) underwent resting-state functional magnetic resonance imaging (fMRI) scans...
April 24, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28459416/age-related-brain-structural-alterations-as-an-intermediate-phenotype-of-psychosis
#15
Juergen Dukart, Renata Smieskova, Fabienne Harrisberger, Claudia Lenz, André Schmidt, Anna Walter, Christian Huber, Anita Riecher-Rössler, Andor Simon, Undine E Lang, Paolo Fusar-Poli, Stefan Borgwardt
BACKGROUND: There is only limited agreement with respect to location, directionality and functional implications of brain structural alterations observed in patients with schizophrenia. Additionally, their link to occurrence of psychotic symptoms remains unclear. A viable way of addressing these questions is to examine populations in an at-risk mental state (ARMS) before the transition to psychosis. METHODS: We tested for structural brain alterations in individuals in an ARMS compared with healthy controls and patients with first-episode psychosis (FEP) using voxel-based morphometry and measures of cortical thickness...
May 1, 2017: Journal of Psychiatry & Neuroscience: JPN
https://www.readbyqxmd.com/read/28458083/cognitive-performance-is-associated-with-gray-matter-decline-in-first-episode-psychosis
#16
Kara Dempster, Ross Norman, Jean Théberge, Maria Densmore, Betsy Schaefer, Peter Williamson
Progressive loss of gray matter has been demonstrated over the early course of schizophrenia. Identification of an association between cognition and gray matter may lead to development of early interventions directed at preserving gray matter volume and cognitive ability. The present study evaluated the association between gray matter using voxel-based morphometry (VBM) and cognitive testing in a sample of 16 patients with first-episode psychosis. A simple regression was applied to investigate the association between gray matter at baseline and 80 months and cognitive tests at baseline...
April 25, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28445800/adjunctive-celecoxib-for-schizophrenia-a-meta-analysis-of-randomized-double-blind-placebo-controlled-trials
#17
Wei Zheng, Dong-Bin Cai, Xin-Hu Yang, Gabor S Ungvari, Chee H Ng, Norbert Müller, Yu-Ping Ning, Yu-Tao Xiang
Neuroinflammation has been implicated in the neurobiological pathways of schizophrenia. This meta-analysis evaluated the efficacy and tolerability of adjunctive celecoxib as a noncompetitive anti-inflammation drug in treating schizophrenia. Data were searched, extracted, checked and entered into the RevMan (version 5.3) software by two independent investigators. Standardized/weighted mean differences (SMDs/WMDs), risk ratio (RR) and their 95% confidence intervals (CIs) were calculated, as appropriate. Included were 8 randomized controlled trials (RCTs) with a total of 626 patients with schizophrenia including 316 (50...
April 14, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28443529/selective-attention-and-mismatch-negativity-in-antipsychotic-na%C3%A3-ve-first-episode-schizophrenia-patients-before-and-after-6-months-of-antipsychotic-monotherapy
#18
B Oranje, B Aggernaes, H Rasmussen, B H Ebdrup, B Y Glenthøj
BACKGROUND: Attention deficits have been frequently reported in schizophrenia. It has been suggested that treatment with second-generation antipsychotics can ameliorate these deficits. In this study, the influence of 6 months treatment with quetiapine, a compound with less affinity for dopamine D2 receptors than for serotonergic 5-HT2A receptors, on electrophysiological parameters of attention was investigated in a group of antipsychotic-naïve, first-episode schizophrenia patients compared with a group of age- and gender-matched healthy controls...
April 26, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28437056/psychotic-and-bipolar-disorders-schizophrenia
#19
Alaina L Edmunds
Schizophrenia is the most common psychotic illness, typically appearing between the late teenage years and the mid-30s. The first episode of psychosis may be preceded by a prodromal period. Schizophrenia symptoms fall into six common symptom clusters: delusions and hallucinations, disorganization of speech, cognitive dysfunction, negative symptoms, affective symptoms, and motor system abnormalities. The diagnosis is based on criteria in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, including exclusion of other possible medical or psychiatric etiologies of psychosis...
April 2017: FP Essentials
https://www.readbyqxmd.com/read/28428048/multi-center-machine-learning-in-imaging-psychiatry-a-meta-model-approach
#20
Petr Dluhoš, Daniel Schwarz, Wiepke Cahn, Neeltje van Haren, René Kahn, Filip Španiel, Jiří Horáček, Tomáš Kašpárek, Hugo Schnack
One of the biggest problems in automated diagnosis of psychiatric disorders from medical images is the lack of sufficiently large samples for training. Sample size is especially important in the case of highly heterogeneous disorders such as schizophrenia, where machine learning models built on relatively low numbers of subjects may suffer from poor generalizability. Via multicenter studies and consortium initiatives researchers have tried to solve this problem by combining data sets from multiple sites. The necessary sharing of (raw) data is, however, often hindered by legal and ethical issues...
April 17, 2017: NeuroImage
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