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Schizophrenia Research

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https://www.readbyqxmd.com/read/28648915/long-term-course-of-negative-symptom-subdomains-and-relationship-with-outcome-in-patients-with-a-psychotic-disorder
#1
Annemarie P M Stiekema, Md Atiqul Islam, Edith J Liemburg, Stynke Castelein, Edwin R van den Heuvel, Jaap van Weeghel, André Aleman, Richard Bruggeman, Lisette van der Meer
BACKGROUND: The longitudinal course of the negative symptoms subdomains social amotivation (SA) and expressive deficits (ED) remains largely unknown. We investigated i) the longitudinal course of SA and ED subdomain scores, ii) whether subgroups based on the course of SA and ED subdomain scores could be identified, iii) whether baseline SA and ED subdomain scores were related to functioning and quality of life six years later and iv) the longitudinal relationship between subgroups and outcomes...
June 22, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28648914/psychometrics-of-social-cognitive-measures-for-psychosis-treatment-research
#2
Charlie A Davidson, Rebecca Lesser, Lori T Parente, Joanna M Fiszdon
Social cognition represents an important treatment target, closely linked to everyday social function. While a number of social cognitive interventions have recently been developed, measures used to evaluate these treatments are only beginning to receive psychometric scrutiny. Study goals were to replicate recently-published psychometrics for several social cognitive measures, and to provide information for additional social cognitive measures not included in recent reports. Forty-eight outpatients with psychotic-spectrum disorders completed measures of emotion perception, theory of mind, and attributional bias on two occasions, one month apart...
June 22, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28647494/association-between-familiarity-disorders-and-serious-violence-among-inmates-with-schizophrenia
#3
LETTER
Mathilde Horn, Fabien D'Hondt, Axelle Gharib, Laura Gangloff, Alexandre Dumais, Ali Amad, Pierre Thomas, Thomas Fovet, Delphine Pins
No abstract text is available yet for this article.
June 21, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28647493/associations-between-the-dbh-gene-plasma-dopamine-%C3%AE-hydroxylase-activity-and-cognitive-measures-in-han-chinese-patients-with-schizophrenia
#4
Zuoli Sun, Yun Ma, Wenbiao Li, Jing He, Jun Li, Xue Yang, Peixian Mao, Joseph F Cubells, Yilang Tang
The dopamine (DA) and norepinephrine (NE) systems modulate cognitive function. Dopamine β-hydroxylase (DβH) converts DA to NE, and its activity is under strong genetic control. This study examines the association of plasma DβH (pDβH) activity, DBH gene polymorphisms (-1021C>T, rs1611115 and 444G>A, rs1108580) and cognitive deficits in Han Chinese patients with schizophrenia. We assessed pDβH activity and cognitive function using the Verbal Fluency Test (VFT), Trail Making Test (TMT) A-B, Stroop color-word test and Wisconsin Card Sorting Test (WCST) in 200 patients with schizophrenia before and after 8weeks of antipsychotic treatment (96 patients completed assessments at baseline and post-treatment)...
June 21, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28647492/eszopiclone-for-persistent-negative-symptoms-in-schizophrenia-an-unintended-n-of-1-study
#5
Urvakhsh Meherwan Mehta, Vinutha Ravishankar, Jagadisha Thirthalli
Persistent negative and cognitive symptoms in patients with schizophrenia pose a significant challenge to clinicians. Being a heterogeneous cluster of symptoms with potentially distinct underlying pathogenesis, it is important to examine novel therapies based on emerging neurobiological evidence. Eszopiclone is known to enhance the deficient sleep spindles that are related to impairments in learning and memory in schizophrenia. In this report we highlight the potential utility of eszopiclone in treating persistent negative symptoms in a patient with chronic schizophrenia...
June 21, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28641887/central-serotonergic-function-in-patients-with-predominantly-negative-symptoms-of-schizophrenia
#6
LETTER
I Uhl, A Kulik, P Roser, A Theodoridou, C Wyss, C Norra, M Brüne, W Kawohl, G Juckel
No abstract text is available yet for this article.
June 19, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28641886/genome-wide-expression-in-veterans-with-schizophrenia-further-validates-the-immune-hypothesis-for-schizophrenia
#7
Gabriel R Fries, Dimitre H Dimitrov, Shuko Lee, Nicole Braida, Jesse Yantis, Craig Honaker, Joe Cuellar, Consuelo Walss-Bass
This study aimed to test whether a dysregulation of gene expression may be the underlying cause of previously reported elevated levels of inflammatory cytokines in veterans with schizophrenia. We performed a genome-wide expression analysis in peripheral blood mononuclear cells from veterans with schizophrenia and controls, and our results show that 167 genes and putative loci were differently expressed between groups. These genes were enriched primarily for pathways related to inflammatory mechanisms and formed networks related to cell death and survival, immune cell trafficking, among others, which is in line with previous reports and further validates the inflammatory hypothesis of schizophrenia...
June 19, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28637633/physical-activity-correlates-among-people-with-psychosis-data-from-47-low-and-middle-income-countries
#8
Brendon Stubbs, Davy Vancampfort, Joseph Firth, Mats Hallgren, Felipe Schuch, Nicola Veronese, Marco Solmi, Fiona Gaughran, Kai G Kahl, Simon Rosenbaum, Philip B Ward, Andre F Carvalho, Ai Koyanagi
BACKGROUND: People with schizophrenia engage in low levels of physical activity (PA). However, few large-scale studies have investigated the factors that may influence PA participation in individuals with psychosis and data from low- and middle-income countries (LMICs) is especially scarce. Thus, we investigated PA correlates in a large sample of people with a psychosis diagnosis across 47 LMICs. METHODS: Cross-sectional data from the World Health Survey, restricting to those with a self-reported lifetime diagnosis of schizophrenia/psychotic disorder, was analyzed...
June 18, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28634088/duration-of-untreated-psychosis-and-neurocognition-in-first-episode-psychosis-a-meta-analysis
#9
REVIEW
Emre Bora, Berna Yalincetin, Berna Binnur Akdede, Koksal Alptekin
Neurocognitive impairment is a well-established feature of first-episode psychosis (FEP). Neurotoxicity hypothesis of psychosis suggests that untreated psychosis before the initiation of first effective treatment is associated with loss of acquired cognitive abilities. However, the outcome of the studies investigating the relationship between duration of untreated psychosis (DUP) and cognitive impairment in FEP remains inconclusive. No previous meta-analysis investigating the relationship between DUP and cognitive impairment in FEP has been published...
June 17, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28634087/treatment-with-levetiracetam-improves-cognition-in-a-ketamine-rat-model-of-schizophrenia
#10
Ming Teng Koh, Yi Shao, Sharon Rosenzweig-Lipson, Michela Gallagher
Imbalance in neural excitation and inhibition is associated with behavioral dysfunction in individuals with schizophrenia and at risk for this illness. We examined whether targeting increased neural activity with the antiepileptic agent, levetiracetam, would benefit memory performance in a preclinical model of schizophrenia that has been shown to exhibit hyperactivity in the hippocampus. Adult rats exposed to ketamine subchronically during late adolescence showed impaired hippocampal-dependent memory performance...
June 17, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28629890/perceived-social-stress-and-symptom-severity-among-help-seeking-adolescents-with-versus-without-clinical-high-risk-for-psychosis
#11
Zachary B Millman, Steven C Pitts, Elizabeth Thompson, Emily R Kline, Caroline Demro, Marc J Weintraub, Jordan E DeVylder, Vijay A Mittal, Gloria M Reeves, Jason Schiffman
Research suggests that social stress exposure influences illness presentation and course among youth at clinical high-risk (CHR) for psychosis, though less is known about the extent to which self-reported perceptions of social stress relate to the severity of positive symptoms. Importantly, despite the notion that youth at CHR are especially susceptible to elevations in positive symptoms under conditions of stress, no study has examined this presumption relative to other psychiatric groups. Extending previous work demonstrating that perceived social stress was higher in a CHR group than in a clinical group of non-CHR, help-seeking controls, the current study aimed to: (1) examine whether perceived social stress is related to the severity of attenuated positive symptoms in the full sample (N=110); and (2) determine whether CHR status moderates the stress-symptom relation...
June 16, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28629889/comparison-of-the-effectiveness-of-brand-name-and-generic-antipsychotic-drugs-for-treating-patients-with-schizophrenia-in-taiwan
#12
Chih-Wei Hsu, Sheng-Yu Lee, Liang-Jen Wang
The purpose of this nationwide population-based study is to compare the long-term effectiveness of brand-name antipsychotics with generic antipsychotics for treating schizophrenia. We identified patients with schizophrenia who were prescribed antipsychotics from a random sample of one million records from Taiwan's National Health Insurance database, observed between January 1, 2000 and December 31, 2012. Only those with no prior use of antipsychotics for at least 180days were included. We selected patients who were prescribed brand-name risperidone (N=404), generic risperidone (N=145), brand-name sulpiride (N=334), or generic sulpiride (N=991)...
June 16, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28629888/development-of-novel-behavioral-interventions-in-an-experimental-therapeutics-world-challenges-and-directions-for-the-future
#13
Kathryn E Lewandowski, Dost Ongur, Matcheri S Keshavan
Recently, the focus of funding mechanisms associated with clinical trials has changed to be consistent with an experimental therapeutics approach. While this approach holds considerable promise, the paradigm shift has presented challenges for behavioral trials in complex psychiatric illness such as schizophrenia, as molecular targets - the classic focus in experimental therapeutics paradigms - may not represent logical targets for many psychosocial interventions designed to treat multifaceted, multiply determined symptoms...
June 16, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28625743/time-consumption-in-mind-reading-a-potentially-important-factor-for-social-cognition-assessment-in-early-psychosis
#14
Tianhong Zhang, Xiaoli Guo, Yingying Tang, Huiru Cui, Yanyan Wei, Lihua Xu, Xiaochen Tang, Xiaohua Liu, Chunbo Li, Kaida Jiang, Zeping Xiao, Jijun Wang
No abstract text is available yet for this article.
June 15, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28625742/the-gender-gap-in-schizophrenia-research
#15
LETTER
Michael H K Bendels, Jan Bauer, Norman Schöffel, David A Groneberg
No abstract text is available yet for this article.
June 15, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28625741/the-effect-of-transcranial-direct-current-stimulation-on-auditory-hallucination-in-patients-with-schizophrenia
#16
LETTER
Tae Young Lee, Junhee Lee, Minah Kim, Jun Soo Kwon
No abstract text is available yet for this article.
June 15, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28624138/serum-ncam-levels-and-cognitive-deficits-in-first-episode-schizophrenia-patients-versus-health-controls
#17
HuiMei An, LuPing Zhou, Yinghua Yu, Hongzhen Fan, FengMei Fan, Shuping Tan, ZhiRen Wang, Boz Z, Jing Shi, FuDe Yang, Xiangyang Zhang, Yunlong Tan, Xu-Feng Huang
BACKGROUND: Neural cell adhesion molecule (NCAM) is a glycoprotein and plays an important role in cell-cell adhesion, neural migration, neurite outgrowth, synaptic plasticity and brain development. We investigated the relationship between the serum NCAM concentration and cognitive deficit in first episode drug naïve schizophrenia (FES) patients. METHODS: Thirty FES patients and thirty healthy controls were recruited for this study. Psychiatric symptoms were assessed by the positive and negative syndrome scale (PANSS)...
June 15, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28615119/schizophrenia-and-induced-abortions-a-national-register-based-follow-up-study-among-finnish-women-born-between-1965-1980-with-schizophrenia-or-schizoaffective-disorder
#18
Laura Simoila, Erkki Isometsä, Mika Gissler, Jaana Suvisaari, Eila Sailas, Erja Halmesmäki, Nina Lindberg
BACKGROUND: The objectives of this study were to investigate, in women with schizophrenia or schizoaffective disorder, the number and incidence of induced abortions (= pregnancy terminations performed by a physician), their demographic characteristics, use of contraceptives, plus indications of and complications related to pregnancy termination. METHODS: Using the Care Register for Health Care, we identified Finnish women born between the years 1965-1980 who were diagnosed with either schizophrenia or schizoaffective disorder during the follow-up period ending 31...
June 11, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28610803/catatonia-is-not-schizophrenia-and-it-is-treatable
#19
Francisco J Appiani, Gonzalo S Castro
Catatonia is a cluster of motor features that appears in many recognized psychiatric illnesses, that according to the DSM-5 it is not linked as a subtype to schizophrenia anymore. The classic signs are mutism, a rigid posture, fixed staring, stereotypic movements, and stupor, which are all part of a broad psychopathology that may be found in affective, thought, neurological, toxic, metabolic and immunological disorders. Despite the many etiologies, catatonia may be a life-threatening condition with a specific treatment...
June 10, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28602648/a-systematic-review-of-trials-investigating-strength-training-in-schizophrenia-spectrum-disorders
#20
Katriona Keller-Varady, Patrick A Varady, Astrid Röh, Andrea Schmitt, Peter Falkai, Alkomiet Hasan, Berend Malchow
This systematic review analyzed strength training (ST) in patients with schizophrenia. Two independent reviewers searched PubMed and CENTRAL. Only two studies reported on the effects of isolated ST. ST with a single exercise did not improve psychopathology but walking performance. ST for several large muscle groups significantly improved muscle strength and psychopathology. To date, no treatment recommendations can be made for ST. Consistent with recommendations for healthy people combined strength and endurance training can be recommended for schizophrenia...
June 8, 2017: Schizophrenia Research
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