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Schizophrenia Research

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https://www.readbyqxmd.com/read/28108228/a-preliminary-study-of-endocannabinoid-system-regulation-in-psychosis-distinct-alterations-of-cnr1-promoter-dna-methylation-in-patients-with-schizophrenia
#1
Claudio D'Addario, Vincenzo Micale, Martina Di Bartolomeo, Tibor Stark, Mariangela Pucci, Alexandra Sulcova, Mariacarlotta Palazzo, Zuzana Babinska, Laura Cremaschi, Filippo Drago, A Carlo Altamura, Mauro Maccarrone, Bernardo Dell'Osso
Compelling evidence supports the involvement of the endocannabinoid system (ECS) in psychosis vulnerability. We here evaluated the transcriptional regulation of ECS components in human peripheral blood mononuclear cells (PBMCs) obtained from subjects suffering from bipolar disorder, major depressive disorder and schizophrenia, focusing in particular on the effects of DNA methylation. We observed selective alterations of DNA methylation at the promoter of CNR1, the gene coding for the type-1 cannabinoid receptor, in schizophrenic patients (N=25) with no changes in any other disorder...
January 17, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28108227/cerebral-blood-flow-autoregulation-is-impaired-in-schizophrenia-a-pilot-study
#2
Hsiao-Lun Ku, Jiunn-Kae Wang, Hsin-Chien Lee, Timothy Joseph Lane, I-Chao Liu, Yung-Chan Chen, Yao-Tung Lee, I-Cheng Lin, Chia-Pei Lin, Chaur-Jong Hu, Nai-Fang Chi
Patients with schizophrenia have a higher risk of cardiovascular diseases and higher mortality from them than does the general population; however, the underlying mechanism remains unclear. Impaired cerebral autoregulation is associated with cerebrovascular diseases and their mortality. Increased or decreased cerebral blood flow in different brain regions has been reported in patients with schizophrenia, which implies impaired cerebral autoregulation. This study investigated the cerebral autoregulation in 21 patients with schizophrenia and 23 age- and sex-matched healthy controls...
January 17, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28108226/efficacy-acceptability-and-tolerability-of-8-atypical-antipsychotics-in-chinese-patients-with-acute-schizophrenia-a-network-meta-analysis
#3
REVIEW
Zhihua Bai, Guoqiang Wang, Shangli Cai, Xindi Ding, Weiwei Liu, Depei Huang, Weidi Shen, Juncheng Zhang, Kui Chen, Yuqing Yang, Lili Zhang, Xiaochen Zhao, Qiong Ouyang, Jingping Zhao, Huafei Lu, Wei Hao
OBJECTIVE: We aimed to create hierarchies of the efficacy, acceptability and tolerability of eight atypical antipsychotics in the treatment of Chinese patients with acute schizophrenia. METHOD: We systematically searched for RCT articles published between January 1st 2005 and December 31st 2014 in electronic databases (Medline, Pubmed, Embase, the Cochrane Library and ClinicalTrial.gov for studies in English and the China National Knowledge Infrastructure, Wan Fang, and VIP Information/Chinese Scientific Journals Database for studies in Chinese)...
January 17, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28108225/female-schizophrenia-patients-and-risk-of-breast-cancer-a-population-based-cohort-study
#4
Ana Isabel Wu Chou, Yu-Chiao Wang, Cheng-Li Lin, Chia-Hung Kao
OBJECTIVE: Breast cancer is the most common type of cancer in women. This population-based cohort study aimed to examine the association between breast cancer in female schizophrenia patients and its association with the use of antipsychotics drugs. METHODS: All study subjects were selected from the Taiwan Insurance Claims Data (1998-2008). We compared the risk for breast cancer between female schizophrenia patients receiving antipsychotics (n=29,641) with female patients without any serious mental illnesses nor receiving antipsychotic drugs (n=59,282)...
January 17, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28100419/redox-dysregulation-immuno-inflammatory-alterations-and-genetic-variants-of-bdnf-and-mmp-9-in-schizophrenia-pathophysiological-and-phenotypic-implications
#5
Fahmy T Ali, Eman M Abd El-Azeem, Marwa A Hamed, Mohamed A M Ali, Nour M Abd Al-Kader, Ekrami A Hassan
BACKGROUND: Although a clear mechanism underlying the pathophysiology of schizophrenia (SZ) remains elusive, oxidative stress, inflammatory syndrome and immune activation have become an attractive hypothesis for explaining the pathophysiology of SZ. Data from prior studies on the role of matrix metalloproteinase 9 (MMP-9) and brain-derived neurotrophic factor (BDNF) single nucleotide polymorphisms (SNPs) in SZ are contradictory. We aimed to investigate whether oxidative stress, inflammatory and immune activation markers as well as MMP-9 levels may be implicated in SZ pathogenesis...
January 15, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28095998/the-feasibility-and-clinical-benefits-of-improving-facial-affect-recognition-impairments-in-schizophrenia-systematic-review-and-meta-analysis
#6
REVIEW
Natalie Bordon, Suzanne O'Rourke, Paul Hutton
BACKGROUND: People diagnosed with schizophrenia have significant difficulty accurately recognising emotions expressed by others. This may generate anomalous experiences which, if misinterpreted, could contribute to experiences of social defeat, psychotic symptoms and reduced social functioning. It remains unclear whether this impairment is responsive to non-pharmacological intervention, or what the effect of modifying it is. METHODS: We did a systematic review and meta-analysis to examine whether and to what extent facial affect recognition impairments can be improved by psychological intervention and, if so, whether this leads to improvements in psychotic symptoms and social functioning...
January 14, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28095997/abnormal-prefrontal-and-parietal-activity-linked-to-deficient-active-binding-in-working-memory-in-schizophrenia
#7
Stéphanie Grot, Virginie Petel Légaré, Olivier Lipp, Isabelle Soulières, Florin Dolcos, David Luck
Working memory deficits have been widely reported in schizophrenia, and may result from inefficient binding processes. These processes, and their neural correlates, remain understudied in schizophrenia. Thus, we designed an FMRI study aimed at investigating the neural correlates of both passive and active binding in working memory in schizophrenia. Nineteen patients with schizophrenia and 23 matched controls were recruited to perform a working memory binding task, in which they were instructed to memorize three letters and three spatial locations...
January 14, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28094171/the-relationship-of-cognitive-improvement-after-cognitive-remediation-with-social-functioning-in-patients-with-schizophrenia-and-severe-cognitive-deficits
#8
J P Lindenmayer, Samantha Fregenti, Guoxin Kang, Veronica Ozog, Isidora Ljuri, Anzalee Khan, A Goldring, Susan R McGurk
BACKGROUND: This study aims to examine the effects of change in neurocognition on functional outcomes and to examine predictors of change in social functions following a 12-week course of cognitive remediation in patients with schizophrenia and schizoaffective disorder with severe cognitive impairments. METHOD: Level of social functioning was assessed using a performance based measure of functional capacity (PSP) in patients prior to and after the completion of 12-week cognitive remediation treatment (CRT)...
January 13, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28094170/common-developmental-genome-deprogramming-in-schizophrenia-role-of-integrative-nuclear-fgfr1-signaling-infs
#9
S T Narla, Y-W Lee, C A Benson, P Sarder, K J Brennand, E K Stachowiak, M K Stachowiak
The watershed-hypothesis of schizophrenia asserts that over 200 different mutations dysregulate distinct pathways that converge on an unspecified common mechanism(s) that controls disease ontogeny. Consistent with this hypothesis, our RNA-sequencing of neuron committed cells (NCCs) differentiated from established iPSCs of 4 schizophrenia patients and 4 control subjects uncovered a dysregulated transcriptome of 1349 mRNAs common to all patients. Data reveals a global dysregulation of developmental genome, deconstruction of coordinated mRNA networks, and the formation of aberrant, new coordinated mRNA networks indicating a concerted action of the responsible factor(s)...
January 13, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28094169/a-12-week-randomized-controlled-trial-of-twice-daily-intranasal-oxytocin-for-social-cognitive-deficits-in-people-with-schizophrenia
#10
L Fredrik Jarskog, Cort A Pedersen, Jacqueline L Johnson, Robert M Hamer, Shane W Rau, Tonya Elliott, David L Penn
Social cognition is impaired in people with schizophrenia and these deficits are strongly correlated with social functioning. Oxytocin is a hypothalamic peptide that contributes to maternal infant bonding and has diverse pro-social effects in adults. This study tested the hypothesis that 12weeks of intranasal oxytocin will improve social cognitive function in outpatients with schizophrenia and schizoaffective disorder. Sixty-eight eligible participants were randomized to oxytocin (24IU twice daily) or placebo...
January 13, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28089135/phenotypic-continuum-between-autism-and-schizophrenia-evidence-from-the-movie-for-the-assessment-of-social-cognition-masc
#11
Gilles Martinez, Charlotte Alexandre, Célia Mam-Lam-Fook, Narjes Bendjemaa, Raphaël Gaillard, Patricia Garel, Isabel Dziobek, Isabelle Amado, Marie-Odile Krebs
Schizophrenic (SCZ) and autism (ASD) spectrum disorders share several features including social cognition impairments. In SCZ, the link between symptomatic dimensions and social cognition deficits remains unclear. The Movie for the Assessment of Social Cognition (MASC) test, available in several languages including English, investigates mental state attribution capabilities in complex interpersonal situations. After its translation into French, we used MASC to direct compare social cognition in 36 young participants with SCZ to 19 with ASD and 20 healthy controls (HC) matched for gender, age (18-25y...
January 11, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28089134/extended-alternate-day-antipsychotic-dosing-and-dopamine-supersensitivity-psychosis-a-case-report
#12
LETTER
Vijaya Kumar, Ganesan Venkatasubramanian
No abstract text is available yet for this article.
January 11, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28087270/examining-the-reliability-and-validity-of-the-clinical-assessment-interview-for-negative-symptoms-within-the-management-of-schizophrenia-in-clinical-practice-mosaic-multisite-national-study
#13
Jack J Blanchard, Kristen R Bradshaw, Cristina P Garcia, Henry A Nasrallah, Philip D Harvey, Daniel Casey, Csilla T Csoboth, James I Hudson, Laura Julian, Ellen Lentz, Keith H Nuechterlein, Diana O Perkins, Tracey G Skale, Lonnie R Snowden, Rajiv Tandon, Cenk Tek, Dawn Velligan, Sophia Vinogradov, Cedric O'Gorman
The current study sought to expand on prior reports of the validity and reliability of the CAINS (CAINS) by examining its performance across diverse non-academic clinical settings as employed by raters not affiliated with the scale's developers and across a longer test-retest follow-up period. The properties of the CAINS were examined within the Management of Schizophrenia in Clinical Practice (MOSAIC) schizophrenia registry. A total of 501 participants with a schizophrenia spectrum diagnosis who were receiving usual care were recruited across 15 national Patient Assessment Centers and evaluated with the CAINS, other negative symptom measures, and assessments of functioning, quality of life and cognition...
January 11, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28087269/mitochondrial-roles-of-the-psychiatric-disease-risk-factor-disc1
#14
REVIEW
R Norkett, S Modi, J T Kittler
Ion transport during neuronal signalling utilizes the majority of the brain's energy supply. Mitochondria are key sites for energy provision through ATP synthesis and play other important roles including calcium buffering. Thus, tightly regulated distribution and function of these organelles throughout the intricate architecture of the neuron is essential for normal synaptic communication. Therefore, delineating mechanisms coordinating mitochondrial transport and function is essential for understanding nervous system physiology and pathology...
January 10, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28082141/regulation-of-mitochondrial-dynamics-by-disc1-a-putative-risk-factor-for-major-mental-illness
#15
REVIEW
Laura C Murphy, J Kirsty Millar
Mitochondria are dynamic organelles that are essential to power the process of neurotransmission. Neurons must therefore ensure that mitochondria maintain their functional integrity and are efficiently transported along the full extent of the axons and dendrites, from soma to synapses. Mitochondrial dynamics (trafficking, fission and fusion) co-ordinately regulate mitochondrial quality control and function. DISC1 is a component of the mitochondrial transport machinery and regulates mitochondrial dynamics. DISC1's role in this is adversely affected by sequence variants connected to brain structure/function and disease risk, and by mutant truncation...
January 9, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28082140/shared-abnormality-of-white-matter-integrity-in-schizophrenia-and-bipolar-disorder-a-comparative-voxel-based-meta-analysis
#16
Debo Dong, Yulin Wang, Xuebin Chang, Yuchao Jiang, Benjamin Klugah-Brown, Cheng Luo, Dezhong Yao
Patients with schizophrenia and bipolar disorder (BD) shared a significant overlap in genetic susceptibility, pharmacological treatment responses, neuropsychological deficits, and epidemiological features. However, it remains unknown whether these clinical overlaps are mediated by shared or disorder-specific abnormalities of white matter integrity. In this voxel-based meta-analytic comparison of whole-brain white matter integrity, we aimed to identify the shared or disorder-specific structural abnormalities between schizophrenia and BD...
January 9, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28082139/pilot-study-examining-the-relationship-of-childhood-trauma-perceived-stress-and-medication-use-to-serum-kynurenic-acid-and-kynurenine-levels-in-schizophrenia
#17
LETTER
Bridget J Shovestul, Matthew Glassman, Laura M Rowland, Robert P McMahon, Fang Liu, Deanna L Kelly
No abstract text is available yet for this article.
January 9, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28073606/load-dependent-hyperdeactivation-of-the-default-mode-network-in-people-with-schizophrenia
#18
Britta Hahn, Alexander N Harvey, James M Gold, Thomas J Ross, Elliot A Stein
Schizophrenia is associated with impairment in a range of cognitive functions. Neuroimaging studies have reported lower, but also higher, task-induced activation accompanying impaired performance. Differences in task-load and the ability of people with schizophrenia (PSZ) to stay engaged in the cognitive operations probed appear to underlie such discrepancies. Similarly, task-induced deactivation of the default mode network (DMN) was weaker in PSZ relative to healthy control subjects (HCS) in most studies, but some reported greater deactivation...
January 7, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28073605/comprehensive-association-analysis-of-27-genes-from-the-gabaergic-system-in-japanese-individuals-affected-with-schizophrenia
#19
Shabeesh Balan, Kazuo Yamada, Yoshimi Iwayama, Takanori Hashimoto, Tomoko Toyota, Chie Shimamoto, Motoko Maekawa, Shu Takagai, Tomoyasu Wakuda, Yosuke Kameno, Daisuke Kurita, Kohei Yamada, Mitsuru Kikuchi, Tasuku Hashimoto, Nobuhisa Kanahara, Takeo Yoshikawa
Involvement of the gamma-aminobutyric acid (GABA)-ergic system in schizophrenia pathogenesis through disrupted neurodevelopment has been highlighted in numerous studies. However, the function of common genetic variants of this system in determining schizophrenia risk is unknown. We therefore tested the association of 375 tagged SNPs in genes derived from the GABAergic system, such as GABAA receptor subunit genes, and GABA related genes (glutamate decarboxylase genes, GABAergic-marker gene, genes involved in GABA receptor trafficking and scaffolding) in Japanese schizophrenia case-control samples (n=2926; 1415 cases and 1511 controls)...
January 7, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28069313/is-cognitive-insight-relevant-to-functional-capacity-in-schizophrenia
#20
LETTER
Audrey Benoit, Christopher R Bowie, Martin Lepage
No abstract text is available yet for this article.
January 6, 2017: Schizophrenia Research
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