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https://www.readbyqxmd.com/read/27922183/the-significance-of-sampling-time-in-therapeutic-drug-monitoring-of-clozapine
#1
M I Jakobsen, J R Larsen, C K Svensson, S S Johansen, K Linnet, J Nielsen, A Fink-Jensen
OBJECTIVE: Therapeutic drug monitoring (TDM) of clozapine is standardized to 12-h postdose samplings. In clinical settings, sampling time often deviates from this time point, although the importance of the deviation is unknown. To this end, serum concentrations (s-) of clozapine and its metabolite N-desmethyl-clozapine (norclozapine) were measured at 12 ± 1 and 2 h postdose. METHOD: Forty-six patients with a diagnosis of schizophrenia, and on stable clozapine treatment, were enrolled for hourly, venous blood sampling at 10-14 h postdose...
December 6, 2016: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/27922130/the-nmda-receptor-glun2c-subunit-controls-cortical-excitatory-inhibitory-balance-neuronal-oscillations-and-cognitive-function
#2
Subhash C Gupta, Aparna Ravikrishnan, Jinxu Liu, Zhihao Mao, Ratnamala Pavuluri, Brandon G Hillman, Pauravi J Gandhi, Dustin J Stairs, Ming Li, Rajesh R Ugale, Daniel T Monaghan, Shashank M Dravid
Despite strong evidence for NMDA receptor (NMDAR) hypofunction as an underlying factor for cognitive disorders, the precise roles of various NMDAR subtypes remains unknown. The GluN2C-containing NMDARs exhibit unique biophysical properties and expression pattern, and lower expression of GluN2C subunit has been reported in postmortem brains from schizophrenia patients. We found that loss of GluN2C subunit leads to a shift in cortical excitatory-inhibitory balance towards greater inhibition. Specifically, pyramidal neurons in the medial prefrontal cortex (mPFC) of GluN2C knockout mice have reduced mEPSC frequency and dendritic spine density and a contrasting higher frequency of mIPSCs...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27921860/effects-of-cognitive-remediation-therapy-on-neurocognition-and-negative-symptoms-in-schizophrenia-an-italian-naturalistic-study
#3
Mariangela Lanfredi, Giacomo Deste, Clarissa Ferrari, Stefano Barlati, Laura Rosa Magni, Roberta Rossi, Luca de Peri, Marco Bonomi, Giuseppe Rossi, Antonio Vita
INTRODUCTION: Cognitive remediation therapy (CRT) has been reported to positively affect neurocognitive processes among patients with schizophrenia; however, the degree to which changes in cognition is linked to improved clinical symptoms, remains poorly understood. The current study aimed to investigate whether cognitive gains were associated to improvements in negative symptoms' severity in patients with schizophrenia living in two Italian psychiatric facilities. METHODS: Patients with a diagnosis of schizophrenia were consecutively assigned to CRT (n = 33) and compared with an historical control group (n = 28)...
December 6, 2016: Cognitive Neuropsychiatry
https://www.readbyqxmd.com/read/27921424/-mind-as-an-immunomodulator
#4
Cyril Höschl, Jiří Horáček
Review paper highlights the connection between psyche and the bodys immune defense mechanisms and summarizes new findings on the relations between nervous and immune systems. The article also briefly describes the outcome of authors own original works on the relationship between infections and schizophrenia, and their notice about possible immunomodulatory effects of antipsychoticsKey words: antipsychotics - immunity - infection - inflammation - mind - pain - schizophrenia.
2016: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/27921323/the-application-of-strand-invasion-phenomenon-directed-by-peptide-nucleic-acid-pna-and-single-stranded-dna-binding-protein-ssb-for-the-recognition-of-specific-sequences-of-human-endogenous-retroviral-herv-w-family
#5
Grzegorz Machnik, Łukasz Bułdak, Jarosław Ruczyński, Tomasz Gąsior, Małgorzata Huzarska, Dariusz Belowski, Magdalena Alenowicz, Piotr Mucha, Piotr Rekowski, Bogusław Okopień
The HERV-W family of human endogenous retroviruses represents a group of numerous sequences that show close similarity in genetic composition. It has been documented that some members of HERV-W-derived expression products are supposed to play significant role in humans' pathology, such as multiple sclerosis or schizophrenia. Other members of the family are necessary to orchestrate physiological processes (eg, ERVWE1 coding syncytin-1 that is engaged in syncytiotrophoblast formation). Therefore, an assay that would allow the recognition of particular form of HERV-W members is highly desirable...
December 6, 2016: Journal of Molecular Recognition: JMR
https://www.readbyqxmd.com/read/27920539/comparison-of-self-stigma-and-quality-of-life-in-patients-with-depressive-disorders-and-schizophrenia-spectrum-disorders-a-cross-sectional-study
#6
Michaela Holubova, Jan Prasko, Stanislav Matousek, Klara Latalova, Marketa Marackova, Kristyna Vrbova, Aleš Grambal, Milos Slepecky, Marta Zatkova
BACKGROUND: The views of one's self-stigma and quality of life (QoL) in patients with schizophrenia and depressive disorders are significant subjective notions, both being proven to affect patient's functioning in life. The objective of this study was to investigate the QoL and self-stigma in connection with demographic factors and compare the two groups of patients in terms of those variables. METHODS: In a cross-sectional study, the outpatients with schizophrenia spectrum disorders and depressive disorders completed the Quality of Life Satisfaction and Enjoyment Questionnaire, the Internalized Stigma of Mental Illness Scale, and a demographic questionnaire during a routine psychiatric control...
2016: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/27920538/self-stigma-and-schizophrenia-a-cross-sectional-study
#7
Kristyna Vrbova, Jan Prasko, Michaela Holubova, Dana Kamaradova, Marie Ociskova, Marketa Marackova, Klara Latalova, Ales Grambal, Milos Slepecky, Marta Zatkova
OBJECTIVE: The aim of this study was to investigate the degree of self-stigma in schizophrenia and its association with clinical and demographic factors. PATIENTS AND METHODS: A total of 197 outpatients (54.3% females) diagnosed with schizophrenia spectrum disorders (schizophrenia, schizoaffective disorder, delusional disorder) according to International Classification of Diseases - tenth edition participated in the study. The mean age of the patients was 40.10±11...
2016: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/27920282/nmda-receptor-encephalitis-and-other-antibody-mediated-disorders-of-the-synapse-the-2016-cotzias-lecture
#8
Josep Dalmau
Investigations during the last 10 years have revealed a group of disorders mediated by antibodies against ion channels and synaptic receptors, which cause both neurologic and psychiatric symptoms. In this review, I discuss the process of discovery and immunologic triggers of these disorders, and use anti-NMDA receptor encephalitis to emphasize the importance of understanding the underlying physiopathologic mechanisms in those diseases. A better knowledge of these mechanisms reveals points of convergence with other disorders (e...
December 6, 2016: Neurology
https://www.readbyqxmd.com/read/27920085/quality-of-prescribing-of-antipsychotic-medication-for-people-with-intellectual-disability-under-the-care-of-uk-mental-health-services-a-cross-sectional-audit-of-clinical-practice
#9
Carol Paton, Sumera Bhatti, Kiran Purandare, Ashok Roy, Tre Barnes
OBJECTIVES: To determine the prevalence and quality of antipsychotic prescribing for people with intellectual disability (ID). DESIGN: A clinical audit of prescribing practice in the context of a quality improvement programme. Practice standards for audit were derived from relevant, evidence-based guidelines, including NICE. Data were mainly collected from the clinical records, but to determine the clinical rationale for using antipsychotic medication in individual cases, prescribers could also be directly questioned...
December 5, 2016: BMJ Open
https://www.readbyqxmd.com/read/27920065/can-cognitive-remediation-improve-subsequent-response-to-low-intensity-cognitive-behaviour-therapy-for-psychosis-in-people-with-schizophrenia
#10
Farooq Naeem
No abstract text is available yet for this article.
December 5, 2016: Australian and New Zealand Journal of Psychiatry
https://www.readbyqxmd.com/read/27920064/re-can-cognitive-remediation-improve-subsequent-response-to-low-intensity-cognitive-behaviour-therapy-for-psychosis-in-people-with-schizophrenia
#11
Ryan P Balzan
No abstract text is available yet for this article.
December 5, 2016: Australian and New Zealand Journal of Psychiatry
https://www.readbyqxmd.com/read/27919751/less-head-motion-during-mri-under-task-than-resting-state-conditions
#12
Willem Huijbers, Koene R A Van Dijk, Meta M Boenniger, Rüdiger Stirnberg, Monique M B Breteler
Head motion reduces data quality of neuroimaging data. In three functional magnetic resonance imaging (MRI) experiments we demonstrate that people make less head movements under task than resting-state conditions. In Experiment 1, we observed less head motion during a memory encoding task than during the resting-state condition. In Experiment 2, using publicly shared data from the UCLA Consortium for Neuropsychiatric Phenomics LA5c Study, we again found less head motion during several active task conditions than during a resting-state condition, although some task conditions also showed comparable motion...
December 2, 2016: NeuroImage
https://www.readbyqxmd.com/read/27919523/adjunctive-minocycline-for-schizophrenia-a-meta-analysis-of-randomized-controlled-trials
#13
Ying-Qiang Xiang, Wei Zheng, Shi-Bin Wang, Xin-Hu Yang, Dong-Bin Cai, Chee H Ng, Gabor S Ungvari, Deanna L Kelly, Wei-Ying Xu, Yu-Tao Xiang
This study aimed to conduct a meta-analysis of the efficacy and safety of adjunctive minocycline for schizophrenia. Randomized controlled trials (RCTs) comparing adjunctive minocycline with placebo in patients with schizophrenia were included in the meta-analysis. Two independent investigators extracted and synthesized data. Standard mean differences (SMDs), risk ratio (RR) ±95% confidence intervals (CIs) and the number-needed-to-harm (NNH) were calculated. Eight RCTs with 548 schizophrenia patient including 286 (52...
December 2, 2016: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27919467/erratum-to-brain-connectivity-and-auditory-hallucinations-in-search-of-novel-noninvasive-brain-stimulation-therapeutic-approaches-for-schizophrenia-rev-neurol-159-11-2016
#14
F Thomas, V Moulier, A Valero-Cabré, D Januel
No abstract text is available yet for this article.
December 2, 2016: Revue Neurologique
https://www.readbyqxmd.com/read/27919211/development-of-mlr-and-svm-aided-qsar-models-to-identify-common-sar-of-gaba-uptake-herbal-inhibitors-used-in-the-treatment-of-schizophrenia
#15
Sahila Mohammed Marunnan, Babitha Pallikkara Pulikka, V K Gopalakrishnan, Srinivas Bandaru, Mukesh Yadav, Anuraj Nayarisseri, Victor Arokia Doss
Deficits in GABAnergic system is implicated in the pathophysiology of schizophrenia. Available antipsychotics that target GABA receptor form a desirable therapeutic strategy in the treatment regimen of schizophrenia but, unfortunately, suffers serious setback due to their prolonged side effects. The present investigation focuses on developing QSAR models from the biological activity of herbal compounds and their derivatives that promise to be alternative candidates to GABA uptake inhibitors. Three sets of compounds were undertaken in the study to develop the QSAR models...
December 5, 2016: Current Neuropharmacology
https://www.readbyqxmd.com/read/27919183/accelerated-gray-and-white-matter-deterioration-with-age-in-schizophrenia
#16
Vanessa L Cropley, Paul Klauser, Rhoshel K Lenroot, Jason Bruggemann, Suresh Sundram, Chad Bousman, Avril Pereira, Maria A Di Biase, Thomas W Weickert, Cynthia Shannon Weickert, Christos Pantelis, Andrew Zalesky
OBJECTIVE: Although brain changes in schizophrenia have been proposed to mirror those found with advancing age, the trajectory of gray matter and white matter changes during the disease course remains unclear. The authors sought to measure whether these changes in individuals with schizophrenia remain stable, are accelerated, or are diminished with age. METHOD: Gray matter volume and fractional anisotropy were mapped in 326 individuals diagnosed with schizophrenia or schizoaffective disorder and in 197 healthy comparison subjects aged 20-65 years...
December 6, 2016: American Journal of Psychiatry
https://www.readbyqxmd.com/read/27919182/treatment-resistant-schizophrenia-treatment-response-and-resistance-in-psychosis-trrip-working-group-consensus-guidelines-on-diagnosis-and-terminology
#17
Oliver D Howes, Rob McCutcheon, Ofer Agid, Andrea de Bartolomeis, Nico J M van Beveren, Michael L Birnbaum, Michael A P Bloomfield, Rodrigo A Bressan, Robert W Buchanan, William T Carpenter, David J Castle, Leslie Citrome, Zafiris J Daskalakis, Michael Davidson, Richard J Drake, Serdar Dursun, Bjørn H Ebdrup, Helio Elkis, Peter Falkai, W Wolfgang Fleischacker, Ary Gadelha, Fiona Gaughran, Birte Y Glenthøj, Ariel Graff-Guerrero, Jaime E C Hallak, William G Honer, James Kennedy, Bruce J Kinon, Stephen M Lawrie, Jimmy Lee, F Markus Leweke, James H MacCabe, Carolyn B McNabb, Herbert Meltzer, Hans-Jürgen Möller, Shinchiro Nakajima, Christos Pantelis, Tiago Reis Marques, Gary Remington, Susan L Rossell, Bruce R Russell, Cynthia O Siu, Takefumi Suzuki, Iris E Sommer, David Taylor, Neil Thomas, Alp Üçok, Daniel Umbricht, James T R Walters, John Kane, Christoph U Correll
OBJECTIVE: Research and clinical translation in schizophrenia is limited by inconsistent definitions of treatment resistance and response. To address this issue, the authors evaluated current approaches and then developed consensus criteria and guidelines. METHOD: A systematic review of randomized antipsychotic clinical trials in treatment-resistant schizophrenia was performed, and definitions of treatment resistance were extracted. Subsequently, consensus operationalized criteria were developed through 1) a multiphase, mixed methods approach, 2) identification of key criteria via an online survey, and 3) meetings to achieve consensus...
December 6, 2016: American Journal of Psychiatry
https://www.readbyqxmd.com/read/27918972/a-typical-antipsychotics-normalize-low-gamma-evoked-oscillations-in-patients-with-schizophrenia
#18
Manuel Alegre, Patricio Molero, Miguel Valencia, Guillermo Mayner, Felipe Ortuño, Julio Artieda
The symptoms of schizophrenia might be mediated by a cortical network disconnection which may disrupt the cortical oscillatory activity. Steady-state responses are an easy and consistent way to explore cortical oscillatory activity. A chirp-modulated tone (increasing the frequency of the modulation in a linear manner) allows a fast measure of the steady-state response to different modulation rates. With this approach, we studied the auditory steady-state responses in two groups of patients with schizophrenia (drug-naive and treated with atypical antipsychotic drugs), in order to assess the differences in their responses with respect to healthy subjects, and study any potential effect of medication...
November 26, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/27918536/genome-wide-analyses-for-personality-traits-identify-six-genomic-loci-and-show-correlations-with-psychiatric-disorders
#19
Min-Tzu Lo, David A Hinds, Joyce Y Tung, Carol Franz, Chun-Chieh Fan, Yunpeng Wang, Olav B Smeland, Andrew Schork, Dominic Holland, Karolina Kauppi, Nilotpal Sanyal, Valentina Escott-Price, Daniel J Smith, Michael O'Donovan, Hreinn Stefansson, Gyda Bjornsdottir, Thorgeir E Thorgeirsson, Kari Stefansson, Linda K McEvoy, Anders M Dale, Ole A Andreassen, Chi-Hua Chen
Personality is influenced by genetic and environmental factors and associated with mental health. However, the underlying genetic determinants are largely unknown. We identified six genetic loci, including five novel loci, significantly associated with personality traits in a meta-analysis of genome-wide association studies (N = 123,132-260,861). Of these genome-wide significant loci, extraversion was associated with variants in WSCD2 and near PCDH15, and neuroticism with variants on chromosome 8p23.1 and in L3MBTL2...
December 5, 2016: Nature Genetics
https://www.readbyqxmd.com/read/27917869/neurophysiological-characterization-of-attentional-performance-dysfunction-in-schizophrenia-patients-in-a-reverse-translated-task
#20
Jared W Young, Andrew W Bismark, Yinming Sun, Wendy Zhang, Meghan McIlwain, Ibrahim Grootendorst, Gregory A Light
Attentional dysfunction in schizophrenia (SZ) contributes to the functional deficits ubiquitous to the disorder. Identifying the neural substrates of translational measures of attentional dysfunction would prove invaluable for developing therapeutics. Attentional performance is typically assessed via continuous performance tasks (CPTs), though many place additional cognitive demands with little cross-species test-relevance. Herein, event related potentials (ERPs) were utilized to investigate the neurophysiological correlates of attention and response inhibition of SZ and healthy participants, while they performed the cross-species translated five-choice CPT (5C-CPT)...
December 5, 2016: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
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