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https://www.readbyqxmd.com/read/28109841/disruption-of-aromatase-homeostasis-as-the-cause-of-a-multiplicity-of-ailments-a-comprehensive-review
#1
REVIEW
Seema Patel
Human health is beset with a legion of ailments, which is exacerbated by the lifestyle errors. Out of the numerous enzymes in human body, aromatase, a cytochromes P450 enzyme is particularly very critical. Occurring at the crossroads of multiple signalling pathways, its homeostasis is vital. Unfortunately, medications, hormone therapy, chemical additives in food, and endocrine-disrupting personal care products are oscillating the aromatase concentration beyond the permissible level. As this enzyme converts androgens (C19) into estrogens (C18), its agitation has different outcomes in different genders and age groups...
January 18, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28109669/different-alterations-in-brain-functional-networks-according-to-direct-and-indirect-topological-connections-in-patients-with-schizophrenia
#2
Chang-Hyun Park, Seungyup Lee, Taewon Kim, Wang Yeon Won, Kyoung-Uk Lee
Schizophrenia displays connectivity deficits in the brain, but the literature has shown inconsistent findings about alterations in global efficiency of brain functional networks. We supposed that such inconsistency at the whole brain level may be due to a mixture of different portions of global efficiency at sub-brain levels. Accordingly, we considered measuring portions of global efficiency in two aspects: spatial portions by considering sub-brain networks and topological portions by considering contributions to global efficiency according to direct and indirect topological connections...
January 18, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28109668/childhood-trauma-depression-and-negative-symptoms-are-independently-associated-with-impaired-quality-of-life-in-schizophrenia-results-from-the-national-face-sz-cohort
#3
M Andrianarisoa, L Boyer, O Godin, L Brunel, E Bulzacka, B Aouizerate, F Berna, D Capdevielle, J M Dorey, C Dubertret, J Dubreucq, C Faget, F Gabayet, P M Llorca, J Mallet, D Misdrahi, R Rey, R Richieri, C Passerieux, A Schandrin, A M Tronche, M Urbach, P Vidailhet, F Schürhoff, G Fond
OBJECTIVES: Depression and negative symptoms have been associated with impaired Quality of life (QoL) in schizophrenia (SZ). However, childhood trauma may influence both QoL and depression in SZ patients, with consequences for the management of impaired QoL in SZ patients. The aim of the present study was to determine if childhood trauma was associated with impaired QoL in schizophrenia. METHOD: A sample of 544 community-dwelling stabilized SZ patients enrolled in FACE-SZ cohort were utilized in this study (74...
January 18, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28109667/aberrant-alpha-and-gamma-oscillations-ex-vivo-after-single-application-of-the-nmda-receptor-antagonist-mk-801
#4
Clément E Lemercier, Constance Holman, Zoltan Gerevich
Clinical symptoms of schizophrenia are associated with altered cortical neuronal oscillations in multiple frequency bands such as alpha (7-13Hz) and gamma (30-90Hz) rhythms. NMDA receptor antagonists induce psychotic symptoms in humans and a schizophrenia-like phenotype in animals, suggesting NMDA receptor dysfunction is involved in the generation of many symptoms of the disorder. We investigated the effects of a single intraperitoneal injection of the NMDA receptor antagonist MK-801 in rats, a model of first-episode schizophrenia, on network oscillations recorded ex vivo in the hippocampus and prefrontal cortex...
January 18, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28109666/diminished-auditory-sensory-gating-during-active-auditory-verbal-hallucinations
#5
Robert J Thoma, Andrew Meier, Jon Houck, Vincent P Clark, Jeffrey D Lewine, Jessica Turner, Vince Calhoun, Julia Stephen
Auditory sensory gating, assessed in a paired-click paradigm, indicates the extent to which incoming stimuli are filtered, or "gated", in auditory cortex. Gating is typically computed as the ratio of the peak amplitude of the event related potential (ERP) to a second click (S2) divided by the peak amplitude of the ERP to a first click (S1). Higher gating ratios are purportedly indicative of incomplete suppression of S2 and considered to represent sensory processing dysfunction. In schizophrenia, hallucination severity is positively correlated with gating ratios, and it was hypothesized that a failure of sensory control processes early in auditory sensation (gating) may represent a larger system failure within the auditory data stream; resulting in auditory verbal hallucinations (AVH)...
January 18, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28109665/a-randomized-double-blind-comparison-of-the-efficacy-and-safety-of-low-dose-olanzapine-plus-low-dose-trifluoperazine-versus-full-dose-olanzapine-in-the-acute-treatment-of-schizophrenia
#6
Ching-Hua Lin, Fu-Chiang Wang, Shih-Chi Lin, Yu-Hui Huang, Cheng-Chung Chen
OBJECTIVE: Antipsychotic polypharmacy is common in clinical practice, but not recommended in guidelines for treating schizophrenia patients. This study aimed to compare the efficacy and safety of low-dose olanzapine plus low-dose trifluoperazine (a first-generation antipsychotic [FGA]) to full-dose olanzapine (a second-generation antipsychotic [SGA]) in the treatment of acute schizophrenia. METHOD: In this 6-week, double-blind, fixed-dose study, patients were randomized to receive 5mg/day of olanzapine plus 5mg/day of trifluoperazine or 10mg/day of olanzapine for 6weeks...
January 18, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28108498/mglur2-versus-mglur3-metabotropic-glutamate-receptors-in-primate-dorsolateral-prefrontal-cortex-postsynaptic-mglur3-strengthen-working-memory-networks
#7
Lu E Jin, Min Wang, Veronica C Galvin, Taber C Lightbourne, Peter Jeffrey Conn, Amy F T Arnsten, Constantinos D Paspalas
The newly evolved circuits in layer III of primate dorsolateral prefrontal cortex (dlPFC) generate the neural representations that subserve working memory. These circuits are weakened by increased cAMP-K(+) channel signaling, and are a focus of pathology in schizophrenia, aging, and Alzheimer's disease. Cognitive deficits in these disorders are increasingly associated with insults to mGluR3 metabotropic glutamate receptors, while reductions in mGluR2 appear protective. This has been perplexing, as mGluR3 has been considered glial receptors, and mGluR2 and mGluR3 have been thought to have similar functions, reducing glutamate transmission...
January 19, 2017: Cerebral Cortex
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
#8
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
#9
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
#10
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
#11
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/28107885/comorbidities-with-chronic-physical-conditions-and-gender-profiles-of-illness-in-schizophrenia-results-from-prest-a-new-health-dataset
#12
Andrea Gabilondo, Edurne Alonso-Moran, Roberto Nuño-Solinis, Juan F Orueta, Alvaro Iruin
OBJECTIVE: Using data from a large health dataset, the objectives are to describe the epidemiology of comorbidities with chronic physical conditions in schizophrenia, to identify gender profiles of illness and to discuss findings in the light of previous research. METHODS: The PREST health database was used which combines high quality and complementary data from numerous public health care resources in the Basque Country (Spain). RESULTS: A total number of 2,255,406 patients were included in this study and 7331 had a diagnosis of schizophrenia...
February 2017: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/28107668/neurotrophins-role-in-depressive-symptoms-and-executive-function-performance-association-analysis-of-nrn1-gene-and-its-interaction-with-bdnf-gene-in-a-non-clinical-sample
#13
C Prats, B Arias, G Ortet, M I Ibáñez, J Moya, E Pomarol-Clotet, L Fañanás, M Fatjó-Vilas
BACKGROUND: Neuritin-1 is a neurotrophic factor involved in synaptic plasticity that has been associated with depressive disorders, schizophrenia and cognitive performance. The study of genotype-phenotype relationships in healthy individuals is a useful framework to investigate the etiology of brain dysfunctions. We therefore aimed to investigate in a non-clinical sample whether NRN1 gene contributes to the psychopathological profile, with a particular focus on the clinical dimensions previously related to the NRN1 gene (i...
November 23, 2016: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28107388/factors-moderating-the-relationship-between-childhood-trauma-and-premorbid-adjustment-in-first-episode-schizophrenia
#14
S Kilian, J K Burns, S Seedat, L Asmal, B Chiliza, S Du Plessis, M R Olivier, M Kidd, R Emsley
Childhood trauma is a recognised risk factor for schizophrenia. It has been proposed that childhood trauma interferes with normal neurodevelopment, thereby establishing a biological vulnerability to schizophrenia. Poor premorbid adjustment is frequently a precursor to schizophrenia, and may be a manifestation of neurodevelopmental compromise. We investigated the relationship between childhood trauma and premorbid adjustment in 77 patients with first-episode schizophrenia spectrum disorders. We also investigated possible mediating roles for other selected risk factors in the relationship...
2017: PloS One
https://www.readbyqxmd.com/read/28107346/decreased-functional-connectivity-of-insular-cortex-in-drug-na%C3%A3-ve-first-episode-schizophrenia-in-relation-to-symptom-severity
#15
Lijuan Pang, David Kennedy, Qinling Wei, Luxian Lv, Jinsong Gao, Hong Li, Meina Quan, Xue Li, Yongfeng Yang, Xiaoduo Fan, Xueqin Song
BACKGROUND: This study was to examine the insular cortical functional connectivity in drug naïve patients with first episode schizophrenia and to explore the relationship between the connectivity and the severity of clinical symptoms. METHODS: Thirty-seven drug naïve patients with schizophrenia and 25 healthy controls were enrolled in this study. A seed-based approach was used to analyze the resting-state functional imaging data. Insular cortical connectivity maps were bilaterally extracted for group comparison and validated by voxel-based morphometry (VBM) analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28106314/role-of-cytokine-changes-in-clozapine-induced-fever-a-cohort-prospective-study
#16
Yuan-Pin Hung, Carol Sheei-Meei Wang, Chia-Nan Yen, Hsun-Cheng Chang, Po See Chen, I Hui Lee, Kao Chin Chen, Yen Kuang Yang, Ru-Band Lu, Tzu-Yun Wang
AIM: Clozapine-associated fever is common but the specific cytokine changes and treatment durations that may cause fever remain unknown. We investigate the association between inflammatory cytokine changes and clozapine-induced fever in patients who were treated with clozapine. METHODS: Forty-three patients with schizophrenia or schizoaffective disorder, diagnosed by using the Chinese Version of the Mini International Neuropsychiatric Interview, were treated with clozapine for the first time (first-time use group, n = 22) or more than 6 months (long-term use group, n = 21)...
January 20, 2017: Psychiatry and Clinical Neurosciences
https://www.readbyqxmd.com/read/28105670/the-role-of-shame-in-people-with-a-diagnosis-of-schizophrenia
#17
Nadine Keen, Darren George, Peter Scragg, Emmanuelle Peters
OBJECTIVES: To examine the role of shame and its relationship to depression in schizophrenia. It was predicted that individuals with a diagnosis of schizophrenia would exhibit higher levels of shame due to the stigma associated with their diagnosis, independently of depression levels, compared with psychiatric and medical control groups. DESIGN: Cross-sectional design with three groups: individuals with a diagnosis of (1) schizophrenia, (2) depression, and (3) rheumatoid arthritis...
January 19, 2017: British Journal of Clinical Psychology
https://www.readbyqxmd.com/read/28105280/glun2a-selective-pyridopyrimidinone-series-of-nmdar-positive-allosteric-modulators-with-an-improved-in-vivo-profile
#18
Elisia Villemure, Matthew Volgraf, Yu Jiang, Guosheng Wu, Cuong Q Ly, Po-Wai Yuen, Aijun Lu, Xifeng Luo, Mingcui Liu, Shun Zhang, Patrick J Lupardus, Heidi J A Wallweber, Bianca M Liederer, Gauri Deshmukh, Emile Plise, Suzanne Tay, Tzu-Ming Wang, Jesse E Hanson, David H Hackos, Kimberly Scearce-Levie, Jacob B Schwarz, Benjamin D Sellers
The N-methyl-d-aspartate receptor (NMDAR) is an ionotropic glutamate receptor, gated by the endogenous coagonists glutamate and glycine, permeable to Ca(2+) and Na(+). NMDAR dysfunction is associated with numerous neurological and psychiatric disorders, including schizophrenia, depression, and Alzheimer's disease. Recently, we have disclosed GNE-0723 (1), a GluN2A subunit-selective and brain-penetrant positive allosteric modulator (PAM) of NMDARs. This work highlights the discovery of a related pyridopyrimidinone core with distinct structure-activity relationships, despite the structural similarity to GNE-0723...
January 12, 2017: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28105267/potential-treatment-of-cognitive-impairment-in-schizophrenia-by-phosphodiesterase-2-pde2-inhibitors
#19
EDITORIAL
Ahmed F Abdel-Magid
No abstract text is available yet for this article.
January 12, 2017: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28104737/cerebral-blood-flow-alterations-specific-to-auditory-verbal-hallucinations-in-schizophrenia
#20
Chuanjun Zhuo, Jiajia Zhu, Wen Qin, Hongru Qu, Xiaolei Ma, Chunshui Yu
BACKGROUND: Auditory verbal hallucinations (AVHs) have been associated with deficits in auditory and speech-related networks. However, the resting-state cerebral blood flow (CBF) alterations specific to AVHs in schizophrenia remain unknown. AIMS: To explore AVH-related CBF alterations in individuals with schizophrenia. METHOD: In total, 35 individuals with schizophrenia with AVHs, 41 individuals with schizophrenia without AVHs and 50 controls underwent arterial spin labelling magnetic resonance imaging...
January 19, 2017: British Journal of Psychiatry: the Journal of Mental Science
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