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https://www.readbyqxmd.com/read/28718181/erythropoietin-for-cognitive-deficits-associated-with-schizophrenia-bipolar-disorder-and-major-depression-a-systematic-review
#1
Xian-Bin Li, Wei Zheng, Yu-Ping Ning, Dong-Bin Cai, Xin-Hu Yang, Gabor S Ungvari, Chee H Ng, Chuan-Yue Wang, Yu-Tao Xiang
Introduction The purpose of this study is to systematically review the efficacy and safety of adjunctive erythropoietin (EPO) in treating cognitive deficits associated with schizophrenia, bipolar disorder, and major depression based on randomized controlled trials (RCTs). Methods Two evaluators independently and systematically searched and selected studies, extracted data, and conducted quality assessment. Results Four RCTs with 144 patients (71 in the EPO group and 73 in the placebo group) met the study entry criteria...
July 17, 2017: Pharmacopsychiatry
https://www.readbyqxmd.com/read/28714580/differential-failure-to-deactivate-the-default-mode-network-in-unipolar-and-bipolar-depression
#2
Elena Rodríguez-Cano, Silvia Alonso-Lana, Salvador Sarró, Paloma Fernández-Corcuera, José M Goikolea, Eduard Vieta, Teresa Maristany, Raymond Salvador, Peter J McKenna, Edith Pomarol-Clotet
OBJECTIVES: Neuroimaging studies have revealed evidence of brain functional abnormalities in bipolar depressive disorder (BDD) and major depressive disorder (MDD). However, few studies to date have compared these two mood disorders directly. METHODS: Matched groups of 26 BDD type I patients, 26 MDD patients and 26 healthy controls underwent functional magnetic resonance imaging (fMRI) while performing the n-back working memory task. A whole-brain ANOVA was used to compare the three groups and clusters of significant difference were examined further using region-of-interest (ROI) analysis...
July 17, 2017: Bipolar Disorders
https://www.readbyqxmd.com/read/28711473/interaction-of-reelin-and-stress-on-immobility-in-the-forced-swim-test-but-not-dopamine-mediated-locomotor-hyperactivity-or-prepulse-inhibition-disruption-relevance-to-psychotic-and-mood-disorders
#3
Michael J Notaras, Billie Vivian, Carey Wilson, Maarten van den Buuse
RATIONALE: Psychotic disorders, such as schizophrenia, as well as some mood disorders, such as bipolar disorder, have been suggested to share common biological risk factors. One such factor is reelin, a large extracellular matrix glycoprotein that regulates neuronal migration during development as well as numerous activity-dependent processes in the adult brain. The current study sought to evaluate whether a history of stress exposure interacts with endogenous reelin levels to modify behavioural endophenotypes of relevance to psychotic and mood disorders...
July 13, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28709024/neurocognition-in-patients-with-psychotic-and-non-psychotic-bipolar-i-disorder-a-comparative-study-with-individuals-with-schizophrenia
#4
Estela Jiménez-López, Ana Isabel Aparicio, Eva Maria Sánchez-Morla, Roberto Rodriguez-Jimenez, Eduard Vieta, José Luis Santos
BACKGROUND: It has been suggested that patients with bipolar disorder with psychotic symptoms (BD-P) have larger neurocognitive impairment than patients with bipolar disorder without a history of psychotic symptoms (BD-NP). The objective of this study was to compare neurocognitive performance of BD-P and BD-NP relative to a group of patients with schizophrenia (SZ), and healthy controls (HC). METHODS: Neurocognitive function was examined in 100 subjects with bipolar I disorder (50 BD-P, 50 BD-NP), 50 SZ, and 51 HC...
July 8, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28707138/gray-matter-changes-and-cognitive-predictors-of-2-year-follow-up-abnormalities-in-early-onset-first-episode-psychosis
#5
Josefina Castro-Fornieles, Nuria Bargalló, Anna Calvo, Celso Arango, Immaculada Baeza, Ana Gonzalez-Pinto, Mara Parellada, Montserrat Graell, Carmen Moreno, Soraya Otero, Joost Janssen, Marta Rapado-Castro, Elena de la Serna
This study aims to examine regional gray matter (GM) changes over a period of 2 years in patients diagnosed with early-onset first-episode psychosis (EO-FEP), and to identify baseline predictors of abnormalities at the follow-up. Fifty-nine patients with EO-FEP aged 11-17 years were assessed. Magnetic resonance imaging was carried out at admission and 2 years later. Changes over time were assessed with voxel-based morphometry. Fifty-nine patients (34 schizophrenia-SCZ, 15 bipolar disorder-BP, and 10 other psychotic disorders) and 70 healthy controls were assessed...
July 13, 2017: European Child & Adolescent Psychiatry
https://www.readbyqxmd.com/read/28680036/behavioral-abnormalities-with-disruption-of-brain-structure-in-mice-overexpressing-vgf
#6
Takahiro Mizoguchi, Hiroko Minakuchi, Mitsue Ishisaka, Kazuhiro Tsuruma, Masamitsu Shimazawa, Hideaki Hara
VGF nerve growth factor inducible (VGF) is a neuropeptide induced by nerve growth factor and brain-derived neurotrophic factor. This peptide is involved in synaptic plasticity, neurogenesis, and neurite growth in the brain. Patients with depression and bipolar disorder have lower-than-normal levels of VGF, whereas patients with schizophrenia and other cohorts of patients with depression have higher-than-normal levels. VGF knockout mice display behavioral abnormalities such as higher depressive behavior and memory dysfunction...
July 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28654848/gender-differences-in-the-association-between-physical-activity-and-cognitive-function-in-individuals-with-bipolar-disorder
#7
F T Fellendorf, N Kainzbauer, M Platzer, N Dalkner, S A Bengesser, A Birner, R Queissner, P Rauch, C Hamm, R Pilz, E Z Reininghaus
INTRODUCTION: Bipolar disorder (BD) is accompanied by a high number of comorbidities and associated with an overall increased mortality. Especially obesity, systemic inflammatory processes and cognitive deficits are highly prevalent and increase with the course of illness. Physical activity (PA) is associated with beneficial effects on somatic comorbidities such as obesity or cardiovascular disease in individuals without psychiatric disorder. Furthermore, PA might increase neurocognitive performance and reduce systemic inflammation...
October 15, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28638703/childhood-trauma-and-negative-memory-bias-as-shared-risk-factors-for-psychopathology-and-comorbidity-in-a-naturalistic-psychiatric-patient-sample
#8
Janna N Vrijsen, Camiel T van Amen, Bauke Koekkoek, Iris van Oostrom, Aart H Schene, Indira Tendolkar
BACKGROUND: Both childhood trauma and negative memory bias are associated with the onset and severity level of several psychiatric disorders, such as depression and anxiety disorders. Studies on these risk factors, however, generally use homogeneous noncomorbid samples. Hence, studies in naturalistic psychiatric samples are lacking. Moreover, we know little about the quantitative relationship between the frequency of traumatic childhood events, strength of memory bias and number of comorbid psychiatric disorders; the latter being an index of severity...
June 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28621334/telomere-length-and-bipolar-disorder
#9
Timothy R Powell, Danai Dima, Sophia Frangou, Gerome Breen
Variation in telomere length is heritable and is currently considered a promising biomarker of susceptibility for neuropsychiatric disorders, particularly because of its association with memory function and hippocampal morphology. Here, we investigate telomere length in connection to familial risk and disease expression in bipolar disorder (BD). We used quantitative polymerase chain reactions and a telomere-sequence to single-copy-gene-sequence ratio method to determine telomere length in genomic DNA extracted from buccal smears from 63 patients with BD, 74 first-degree relatives (49 relatives had no lifetime psychopathology and 25 had a non-BD mood disorder) and 80 unrelated healthy individuals...
June 16, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28599834/effects-of-interleukin-1beta-polymorphisms-on-brain-function-and-behavior-in-healthy-and-psychiatric-disease-conditions
#10
REVIEW
Shih-Jen Tsai
A high level of Interleukin-1beta (IL1B), a key mediator of inflammation, is expressed in the brain, particularly in the hippocampus, which plays a pivotal role in memory and mood regulation. In the brain, IL1B exerts a myriad of effects such as neuronal proliferation, differentiation, apoptosis, and long-term potentiation. Considering its pleiotropic effects in the brain, IL1B has been implicated in the pathogenesis of various psychiatric disorders as well as cognitive function in normal individuals. Thus, IL1B has been considered a candidate gene for the study of psychiatric diseases as well as brain function in normal individuals...
June 3, 2017: Cytokine & Growth Factor Reviews
https://www.readbyqxmd.com/read/28599512/bipolar-resistive-switching-characteristics-of-hfo2-tio2-hfo2-trilayer-structure-rram-devices-on-pt-and-tin-coated-substrates-fabricated-by-atomic-layer-deposition
#11
Wei Zhang, Ji-Zhou Kong, Zheng-Yi Cao, Ai-Dong Li, Lai-Guo Wang, Lin Zhu, Xin Li, Yan-Qiang Cao, Di Wu
The HfO2/TiO2/HfO2 trilayer-structure resistive random access memory (RRAM) devices have been fabricated on Pt- and TiN-coated Si substrates with Pt top electrodes by atomic layer deposition (ALD). The effect of the bottom electrodes of Pt and TiN on the resistive switching properties of trilayer-structure units has been investigated. Both Pt/HfO2/TiO2/HfO2/Pt and Pt/HfO2/TiO2/HfO2/TiN exhibit typical bipolar resistive switching behavior. The dominant conduction mechanisms in low and high resistance states (LRS and HRS) of both memory cells are Ohmic behavior and space-charge-limited current, respectively...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28599348/a-pilot-open-label-8-week-study-evaluating-the-efficacy-safety-and-tolerability-of-adjunctive-minocycline-for-the-treatment-of-bipolar-i-ii-depression
#12
Joanna K Soczynska, Sidney H Kennedy, Mohammad Alsuwaidan, Rodrigo B Mansur, Madeline Li, Mary Pat McAndrews, Elisa Brietzke, Hanna O Woldeyohannes, Valerie H Taylor, Roger S McIntyre
OBJECTIVES: The objectives of the study were to determine if adjunctive minocycline mitigates depressive symptom severity and improves cognitive function in individuals with bipolar I/II disorder (BD). The study also aimed to determine if changes in depressive and/or cognitive symptoms over the course of treatment were associated with changes in circulating inflammatory cytokine levels. METHODS: A total of 29 (intention-to-treat: n=27) adults meeting DSM-IV-TR criteria for a major depressive episode as part of bipolar I or II disorder (i...
May 2017: Bipolar Disorders
https://www.readbyqxmd.com/read/28596546/electro-forming-and-electro-breaking-of-nanoscale-ag-filaments-for-conductive-bridging-random-access-memory-cell-using-ag-doped-polymer-electrolyte-between-pt-electrodes
#13
Myung-Jin Song, Ki-Hyun Kwon, Jea-Gun Park
Ag-doped polymer (polyethylene oxide: PEO) conductive-bridging-random-access-memory (CBRAM) cell using inert Pt electrodes is a potential electro-forming free CBRAM cells in which electro-forming and electro-breaking of nanoscale (16~22-nm in diameter) conical or cylindrical Ag filaments occurs after a set or reset bias is applied. The dependency of the morphologies of the Ag filaments in the PEO polymer electrolyte indicates that the electro-formed Ag filaments bridging the Pt cathode and anode are generated by Ag+ ions drifting in the PEO polymer electrolyte toward the Pt anode and that Ag dendrites grow via a reduction process from the Pt anode, whereas electro-breaking of Ag filaments occurs through the oxidation of Ag atoms in the secondary dendrites and the drift of Ag(+) ions toward the Pt cathode...
June 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28587689/neurocognitive-subtypes-in-patients-with-bipolar-disorder-and-their-unaffected-siblings
#14
M Russo, T E Van Rheenen, M Shanahan, K Mahon, M M Perez-Rodriguez, A Cuesta-Diaz, E Larsen, A K Malhotra, K E Burdick
BACKGROUND: Our previous work revealed substantial heterogeneity in the cognitive profile of bipolar disorder (BD) due to the presence of three underlying cognitive subgroups characterized as: globally impaired, selectively impaired, or cognitively intact. In an effort to determine whether these subgroups are differentially related to genetic risk for the illness, we investigated whether cognitive deficits were more pronounced in unaffected siblings (UAS) of BD probands within identified clusters...
June 7, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28586778/autobiographical-memory-in-bipolar-disorder-and-its-link-to-neuropsychological-functioning
#15
Esther Quinlivan, Mattea Dallacker, Babette Renneberg, Elisa Strasser, Jana Fiebig, Thomas J Stamm
OBJECTIVE: The aim of this study was to examine the specificity of autobiographical memory (AM) in bipolar disorder (BD) and to investigate the association between AM and neuropsychological functions. METHOD: Twenty bipolar patients and 22 matched healthy controls (HCs) were included in this study. AM was assessed with an extended version of the Autobiographical Memory Test (AMT) including rejection cue words. A neuropsychological test battery was used to examine verbal memory, executive functions, and attention...
June 7, 2017: Psychopathology
https://www.readbyqxmd.com/read/28585513/meta-analysis-of-longitudinal-studies-of-cognition-in-bipolar-disorder-comparison-with-healthy-controls-and-schizophrenia
#16
E Bora, A Özerdem
BACKGROUND: Bipolar disorder (BP) is associated with significant cognitive impairment. Recent evidence suggests that cognitive deficits are already evident after first-episode mania. However, it is not clear whether BP is associated with further decline in cognitive functions in individuals with established illness. Aim of this meta-analytic review was to examine longitudinal neurocognitive changes in BP and to compare trajectory of cognitive deficits in BP with schizophrenia and healthy controls...
June 6, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28577464/ag-filament-induced-nonvolatile-resistive-switching-memory-behaviour-in-hexagonal-mose2-nanosheets
#17
Pengde Han, Bai Sun, Jia Li, Tianjing Li, Qingle Shi, Baoxiang Jiao, Qisheng Wu, Xuejiao Zhang
In this work, hexagonal MoSe2 nanosheets were prepared by hydrothermal process. Next, the resistive switching memory behaviour of single MoSe2 nanosheets was further investigated. We observed that MoSe2 nanosheets based memory device show reproducible and stable bipolar resistive switching memory characteristics. Through the analysis for conductive mechanism, the formation and rupture of nanoscale Ag filament inside the MoSe2 nanosheets is suggested to explain the memory behaviour.
May 25, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28572572/inverse-tunnel-magnetocapacitance-in-fe-al-oxide-fe3o4
#18
Hideo Kaiju, Taro Nagahama, Shun Sasaki, Toshihiro Shimada, Osamu Kitakami, Takahiro Misawa, Masaya Fujioka, Junji Nishii, Gang Xiao
Magnetocapacitance (MC) effect, observed in a wide range of materials and devices, such as multiferroic materials and spintronic devices, has received considerable attention due to its interesting physical properties and practical applications. A normal MC effect exhibits a higher capacitance when spins in the electrodes are parallel to each other and a lower capacitance when spins are antiparallel. Here we report an inverse tunnel magnetocapacitance (TMC) effect for the first time in Fe/AlOx/Fe3O4 magnetic tunnel junctions (MTJs)...
June 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28562181/working-memory-predicts-presence-of-auditory-verbal-hallucinations-in-schizophrenia-and-bipolar-disorder-with-psychosis
#19
Lisanne M Jenkins, Anjuli S Bodapati, Rajiv P Sharma, Cherise Rosen
OBJECTIVE: The recent dramatic increase in research investigating auditory verbal hallucinations (AVHs) has broadened the former narrow focus on schizophrenia to incorporate additional populations that experience these symptoms. However, an understanding of potential shared mechanisms remains elusive. Based on theories suggesting a failure of top-down cognitive control, we aimed to compare the relationship between AVHs and cognition in two categorical diagnoses of psychosis, schizophrenia and psychotic bipolar disorder...
May 31, 2017: Journal of Clinical and Experimental Neuropsychology
https://www.readbyqxmd.com/read/28558134/a-strategy-to-design-high-density-nanoscale-devices-utilizing-vapor-deposition-of-metal-halide-perovskite-materials
#20
Bohee Hwang, Jang-Sik Lee
The demand for high memory density has increased due to increasing needs of information storage, such as big data processing and the Internet of Things. Organic-inorganic perovskite materials that show nonvolatile resistive switching memory properties have potential applications as the resistive switching layer for next-generation memory devices, but, for practical applications, these materials should be utilized in high-density data-storage devices. Here, nanoscale memory devices are fabricated by sequential vapor deposition of organolead halide perovskite (OHP) CH3 NH3 PbI3 layers on wafers perforated with 250 nm via-holes...
May 30, 2017: Advanced Materials
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