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Schizophrenia

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https://www.readbyqxmd.com/read/28926871/multiple-organic-cation-transporters-contribute-to-the-renal-transport-of-sulpiride
#1
Liping Li, Yayun Weng, Wei Wang, Mengru Bai, Hongmei Lei, Hui Zhou, Huidi Jiang
Sulpiride, a selective dopamine D2 receptor blocker, is widely used for treatment of schizophrenia, depression, and gastric/duodenal ulcers. Because of the great majority of sulpiride in positive charged at physiological pH7.4, and ~70% of dose recovered in urine in unchanged form after human intravenous administration of sulpiride, we believe transporters play an important role in renal excretion of sulpiride. The aim of the present study was to explore which transporters contribute to the renal disposition of sulpiride...
September 19, 2017: Biopharmaceutics & Drug Disposition
https://www.readbyqxmd.com/read/28926820/guided-university-debate-effect-of-a-new-teaching-learning-strategy-for-undergraduate-nursing-students
#2
Marta Arrue, Saloa Unanue, David Merida
BACKGROUND: A number of studies have shown that the traditional lecture suffers from limitations in the development of many important competencies such as reasoning ability for nursing professionals. OBJECTIVES: In view of this issue, the authors present a promising alternative to the traditional lecture: the Guided University Debate (GUD). With regard to this aim a teaching-learning sequence of schizophrenia is described based on the GUD. Next, the improvement in the argumentative and declarative knowledge of the students who have participated in the said methodology is demonstrated...
September 5, 2017: Nurse Education Today
https://www.readbyqxmd.com/read/28926417/the-reading-the-mind-in-the-eyes-test-validity-and-reliability-of-the-thai-version
#3
Thammanard Charernboon, Tiraya Lerthattasilp
BACKGROUND AND OBJECTIVE: Until now there has not been a validated measure of theory of mind available in the Thai language. Our goal in this study was to assess the validity and reliability of our Thai-language translation of the Reading the Mind in the Eyes Test (the "Eyes Test"). METHODS: We gave our Thai version of the Eyes Test to 70 participants: 30 people with schizophrenia and 40 normal controls. We also gave Thai versions of the Faces Test and the Addenbrooke's Cognitive Examination to assess convergent validity...
September 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/28926097/learned-lessons-from-patients-who-take-clozapine-a-case-study
#4
Heeyoung Lee, Britney B Scolieri, Prabir K Mullick
PURPOSE: The purpose of this report is to provide clinical strategies to manage patients with schizophrenia taking clozapine. CONCLUSIONS: Serious side effects and required blood monitoring impede the use of clozapine, despite the benefits of clozapine for managing psychiatric symptoms. Well-managed patients receiving evidence-based interventions exhibit reduced symptoms, improved functioning, and better adherence to treatment. PRACTICE IMPLICATIONS: Preexisting medical conditions should be considered before prescribing clozapine...
September 19, 2017: Perspectives in Psychiatric Care
https://www.readbyqxmd.com/read/28926001/ketamine-differential-neurophysiological-dynamics-in-functional-networks-in-the-rat-brain
#5
A Ahnaou, H Huysmans, R Biermans, N V Manyakov, W H I M Drinkenburg
Recently, the N-methyl-d-aspartate-receptor (NMDAR) antagonist ketamine has emerged as a fast-onset mechanism to achieve antidepressant activity, whereas its psychomimetic, dissociative and amnestic effects have been well documented to pharmacologically model schizophrenia features in rodents. Sleep-wake architecture, neuronal oscillations and network connectivity are key mechanisms supporting brain plasticity and cognition, which are disrupted in mood disorders such as depression and schizophrenia. In rats, we investigated the dynamic effects of acute and chronic subcutaneous administration of ketamine (2...
September 19, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28925886/the-microbiota-gut-brain-axis-in-neuropsychiatric-disorders-pathophysiological-mechanisms-and-novel-treatments
#6
Yong-Ku Kim, Cheolmin Shin
BACKGROUND: The human gut microbiome comprise a huge number of microorganisms with co-evolutionary associations with humans. It has been repeatedly revealed that bidirectional communication exists between the brain and the gut and involves neural, hormonal, and immunological pathways. Evidences from neuroscience researches over the past few years suggest that microbiota is essential for the development and maturation of brain systems that are associated to stress responses. METHOD: This review provides that the summarization of the communication among microbiota, gut and brain and the results of preclinical and clinical studies on gut microbiota used in treatments for neuropsychiatric disorders...
September 15, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28925573/achieving-recovery-in-patients-with-schizophrenia-through-psycho-social-interventions-a-retrospective-study
#7
Mariachiara Buonocore, Marta Bosia, Maria Alice Baraldi, Margherita Bechi, Marco Spangaro, Federica Cocchi, Laura Bianchi, Carmelo Guglielmino, Antonella Rita Mastromatteo, Roberto Cavallaro
AIM: Recovery, or functional remission represents the ultimate treatment goal in schizophrenia. Despite its importance, a standardized definition of remission is still lacking, thus reported rates significantly vary across studies. Moreover, the effects of rehabilitative interventions on recovery are still poorly investigated. This study aims to evaluate recovery in a sample of patients with chronic schizophrenia engaged in rehabilitation programs and to explore contributing factors, with a focus on of socio-cognitive rehabilitative interventions...
September 19, 2017: Psychiatry and Clinical Neurosciences
https://www.readbyqxmd.com/read/28925523/bdnf-haplo-insufficiency-impairs-high-frequency-cortical-oscillations-in-mice
#8
Nigel C Jones, Matthew Hudson, Joshua Foreman, Gil Rind, Rachel Hill, Elizabeth E Manning, Maarten van den Buuse
Schizophrenia is a complex psychiatric disorder with a heterogeneous aetiology involving genetic and environmental factors. Deficiencies in both brain-derived neurotrophic factor (BDNF) and NMDA receptor function have been implicated in the disorder, and may play causal and synergistic roles. Perturbations in the regulation of electrophysiological signals, including high-frequency (gamma: 30-80 Hz and beta: 20-30 Hz) neuronal oscillations, are also associated with the disorder. This study investigated the influence of BDNF deficiency and NMDA receptor hypofunction on electrophysiological responses to brief acoustic stimuli...
September 19, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28925317/dopamine-supersensitivity-psychosis-in-schizophrenia-concepts-and-implications-in-clinical-practice
#9
Yusuke Nakata, Nobuhisa Kanahara, Masaomi Iyo
Dopamine supersensitivity psychosis (DSP) is observed in patients with schizophrenia under antipsychotic treatment, and it is characterized by rebound psychosis, an uncontrollable psychotic episode following a stable state and tardive dyskinesia. DSP, first described in patients taking typical antipsychotics in the late 1970s, sometimes appears even in patients who are treated with current atypical antipsychotics. It was recently demonstrated that DSP can have a negative impact on the long-term prognosis of schizophrenia patients and that DSP could be involved in the etiology of some cases of treatment-resistant schizophrenia...
September 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28924878/differences-between-schizophrenic-and-normal-subjects-using-network-properties-from-fmri
#10
Youngoh Bae, Kunaraj Kumarasamy, Issa M Ali, Panagiotis Korfiatis, Zeynettin Akkus, Bradley J Erickson
Schizophrenia has been proposed to result from impairment of functional connectivity. We aimed to use machine learning to distinguish schizophrenic subjects from normal controls using a publicly available functional MRI (fMRI) data set. Global and local parameters of functional connectivity were extracted for classification. We found decreased global and local network connectivity in subjects with schizophrenia, particularly in the anterior right cingulate cortex, the superior right temporal region, and the inferior left parietal region as compared to healthy subjects...
September 18, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/28924869/the-educational-potential-of-youtube
#11
Haley T Godwin, Murtaza Khan, Peter Yellowlees
OBJECTIVE: The objective of this paper was to examine the educational potential and effectiveness of a 3 min video clip of a simulation of schizophrenia published online at YouTube. METHOD: Researchers examined the 267 public comments published on the video-sharing website YouTube over 8 years by viewers of a schizophrenia simulation video titled "virtual hallucinations" made in the Second Life game platform. Comments were independently categorized into six groupings, then cooperatively finalized, and qualitatively analyzed...
September 18, 2017: Academic Psychiatry
https://www.readbyqxmd.com/read/28924620/alteration-in-plasma-and-striatal-levels-of-d-serine-after-d-serine-administration-with-or-without-nicergoline-an-in-vivo-microdialysis-study
#12
Mayu Onozato, Hiromi Nakazawa, Katsuyuki Ishimaru, Chihiro Nagashima, Minori Fukumoto, Hitomi Hakariya, Tatsuya Sakamoto, Hideaki Ichiba, Takeshi Fukushima
AIMS: d-Serine (d-Ser), a co-agonist of N-methyl-d-aspartate receptor (NMDAR), is effective for treating schizophrenia. The present study investigated changes in plasma and striatal d-Ser levels in Sprague-Dawley (SD) rats after intraperitoneal d-Ser administration alone or together with nicergoline (Nic), a commercial cerebral ameliorating drug, using in vivo microdialysis (MD) to explore the function of Nic. MAIN METHODS: Phosphate-buffered saline (PBS) or Nic (0, 1...
September 2017: Heliyon
https://www.readbyqxmd.com/read/28924227/implication-of-the-glutamate-cystine-antiporter-xct-in-schizophrenia-cases-linked-to-impaired-gsh-synthesis
#13
M Fournier, A Monin, C Ferrari, P S Baumann, P Conus, K Do
xCT is the specific chain of the cystine/glutamate antiporter, which is widely reported to support anti-oxidant defenses in vivo. xCT is therefore at the crossroads between two processes that are involved in schizophrenia: oxidative stress and glutamatergic neurotransmission. But data from human studies implicating xCT in the illness and clarifying the upstream mechanisms of xCT imbalance are still scarce. Low glutathione (GSH) levels and genetic risk in GCLC (Glutamate-Cysteine Ligase Catalytic subunit), the gene of limiting synthesizing enzyme for GSH, are both associated with schizophrenia...
September 18, 2017: NPJ Schizophrenia
https://www.readbyqxmd.com/read/28924203/the-common-variants-implicated-in-microstructural-abnormality-of-first-episode-and-drug-na%C3%A3-ve-patients-with-schizophrenia
#14
H Y Ren, Q Wang, W Lei, C C Zhang, Y F Li, X J Li, M L Li, W Deng, C H Huang, F Du, L S Zhao, Y C Wang, X H Ma, X Hu, T Li
Both post-mortem and neuroimaging studies have identified abnormal white matter (WM) microstructure in patients with schizophrenia. However, its genetic underpinnings and relevant biological pathways remain unclear. In order to unravel the genes and the pathways associated with abnormal WM microstructure in schizophrenia, we recruited 100 first-episode, drug-naïve patients with schizophrenia and 140 matched healthy controls to conduct genome-wide association analysis of fractional anisotropy (FA) value measured using diffusing tensor imaging (DTI), followed by multivariate association study and pathway enrichment analysis...
September 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28924187/the-ipsych2012-case-cohort-sample-new-directions-for-unravelling-genetic-and-environmental-architectures-of-severe-mental-disorders
#15
C B Pedersen, J Bybjerg-Grauholm, M G Pedersen, J Grove, E Agerbo, M Bækvad-Hansen, J B Poulsen, C S Hansen, J J McGrath, T D Als, J I Goldstein, B M Neale, M J Daly, D M Hougaard, O Mors, M Nordentoft, A D Børglum, T Werge, P B Mortensen
The Integrative Psychiatric Research (iPSYCH) consortium has established a large Danish population-based Case-Cohort sample (iPSYCH2012) aimed at unravelling the genetic and environmental architecture of severe mental disorders. The iPSYCH2012 sample is nested within the entire Danish population born between 1981 and 2005, including 1 472 762 persons. This paper introduces the iPSYCH2012 sample and outlines key future research directions. Cases were identified as persons with schizophrenia (N=3540), autism (N=16 146), attention-deficit/hyperactivity disorder (N=18 726) and affective disorder (N=26 380), of which 1928 had bipolar affective disorder...
September 19, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28924186/interactome-analysis-reveals-znf804a-a-schizophrenia-risk-gene-as-a-novel-component-of-protein-translational-machinery-critical-for-embryonic-neurodevelopment
#16
Y Zhou, F Dong, T A Lanz, V Reinhart, M Li, L Liu, J Zou, H S Xi, Y Mao
Recent genome-wide association studies identified over 100 genetic loci that significantly associate with schizophrenia (SZ). A top candidate gene, ZNF804A, was robustly replicated in different populations. However, its neural functions are largely unknown. Here we show in mouse that ZFP804A, the homolog of ZNF804A, is required for normal progenitor proliferation and neuronal migration. Using a yeast two-hybrid genome-wide screen, we identified novel interacting proteins of ZNF804A. Rather than transcriptional factors, genes involved in mRNA translation are highly represented in our interactome result...
September 19, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28923795/trends-in-standardized-mortality-among-individuals-with-schizophrenia-1993-2012-a-population-based-repeated-cross-sectional-study
#17
Evgenia Gatov, Laura Rosella, Maria Chiu, Paul A Kurdyak
BACKGROUND: We examined mortality time trends and premature mortality among individuals with and without schizophrenia over a 20-year period. METHODS: In this population-based, repeated cross-sectional study, we identified all individual deaths that occurred in Ontario between 1993 and 2012 in persons aged 15 and over. We plotted overall and cause-specific age- and sex-standardized mortality rates (ASMRs), stratified all-cause ASMR trends by sociodemographic characteristics, and analyzed premature mortality using years of potential life lost...
September 18, 2017: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
https://www.readbyqxmd.com/read/28923794/addressing-the-scandal-of-early-death-among-people-with-schizophrenia
#18
Philip B Ward
No abstract text is available yet for this article.
September 18, 2017: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
https://www.readbyqxmd.com/read/28923068/using-blood-cytokine-measures-to-define-high-inflammatory-biotype-of-schizophrenia-and-schizoaffective-disorder
#19
Danny Boerrigter, Thomas W Weickert, Rhoshel Lenroot, Maryanne O'Donnell, Cherrie Galletly, Dennis Liu, Martin Burgess, Roxanne Cadiz, Isabella Jacomb, Vibeke S Catts, Stu G Fillman, Cynthia Shannon Weickert
BACKGROUND: Increases in pro-inflammatory cytokines are found in the brain and blood of people with schizophrenia. However, increased cytokines are not evident in all people with schizophrenia, but are found in a subset. The cytokine changes that best define this subset, termed the "elevated inflammatory biotype", are still being identified. METHODS: Using quantitative RT-PCR, we measured five cytokine mRNAs (IL-1β, IL-2 IL-6, IL-8 and IL-18) from peripheral blood of healthy controls and of people with schizophrenia or schizoaffective disorder (n = 165)...
September 18, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28922980/a-genome-wide-association-study-of-early-gamma-band-response-in-a-schizophrenia-case-control-sample
#20
Bettina Konte, Gregor Leicht, Ina Giegling, Oliver Pogarell, Susanne Karch, Annette M Hartmann, Marion Friedl, Ulrich Hegerl, Dan Rujescu, Christoph Mulert
OBJECTIVES: Disturbances in the gamma-frequency band of electroencephalography (EEG) measures are among the most consistently observed intermediate phenotypes in schizophrenia. We assessed whether genetic variations are associated with gamma-band activity. METHODS: We performed a genome-wide association analysis of the early auditory evoked gamma-band response in schizophrenia affected subjects and healthy control individuals (in total N = 315). RESULTS: No marker surpassed the threshold for genome-wide significant association...
September 19, 2017: World Journal of Biological Psychiatry
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