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https://www.readbyqxmd.com/read/28448671/disrupted-eye-movements-in-preperimetric-primary-open-angle-glaucoma
#1
Raymond P Najjar, Sourabh Sharma, Morgane Drouet, Stephanie Leruez, Mani Baskaran, Monisha E Nongpiur, Tin Aung, Joanne Fielding, Owen White, Michael J Girard, Cédric Lamirel, Dan Milea
Purpose: Primary open-angle glaucoma (POAG) can be associated with abnormal ocular motor behavior, possibly as a compensatory strategy following visual field loss. The aim of this study was to explore the characteristics of saccadic eye movements in patients with early-stage POAG without any detectable glaucomatous visual field loss (i.e., preperimetric POAG). Methods: Binocular eye movements were explored in 16 patients with bilateral preperimetric POAG and 16 age-matched healthy controls in a cross-sectional, observational study...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28447680/subthreshold-swing-improvement-in-mos2-transistors-by-the-negative-capacitance-effect-in-a-ferroelectric-al-doped-hfo2-hfo2-gate-dielectric-stack
#2
Amirhasan Nourbakhsh, Ahmad Zubair, Sameer Joglekar, Mildred Dresselhaus, Tomás Palacios
Obtaining a subthreshold swing (SS) below the thermionic limit of 60 mV dec(-1) by exploiting the negative-capacitance (NC) effect in ferroelectric (FE) materials is a novel effective technique to allow the reduction of the supply voltage and power consumption in field effect transistors (FETs). At the same time, two-dimensional layered semiconductors, such as molybdenum disulfide (MoS2), have been shown to be promising candidates to replace silicon MOSFETs in sub-5 nm-channel technology nodes. In this paper, we demonstrate NC MoS2 FETs by incorporating a ferroelectric Al-doped HfO2 (Al : HfO2), a technologically compatible material, in the FET gate stack...
April 27, 2017: Nanoscale
https://www.readbyqxmd.com/read/28433456/cytokine-alterations-and-cognitive-impairment-in-major-depressive-disorder-from-putative-mechanisms-to-novel-treatment-targets
#3
REVIEW
Błażej Misiak, Jan Aleksander Beszłej, Kamila Kotowicz, Monika Szewczuk-Bogusławska, Jerzy Samochowiec, Jolanta Kucharska-Mazur, Dorota Frydecka
Overwhelming evidence indicates the involvement of immune-inflammatory processes in the pathophysiology of major depressive disorder (MDD). Peripheral cytokine alterations serve as one of most consistently reported indices of subthreshold inflammatory state observed in MDD. Although cytokines cannot pass directly through the blood-brain barrier, a number of transport mechanisms have been reported. In addition, peripheral cytokines may impact central nervous system via downstream effectors of their biological activity...
April 19, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28428744/mutational-analysis-at-intersubunit-interfaces-of-an-anionic-glutamate-receptor-reveals-a-key-interaction-important-for-channel-gating-by-ivermectin
#4
Nurit Degani-Katzav, Revital Gortler, Marina Weissman, Yoav Paas
The broad-spectrum anthelmintic drug ivermectin (IVM) activates and stabilizes an open-channel conformation of invertebrate chloride-selective glutamate receptors (GluClRs), thereby causing a continuous inflow of chloride ions and sustained membrane hyperpolarization. These effects suppress nervous impulses and vital physiological processes in parasitic nematodes. The GluClRs are pentamers. Homopentameric receptors assembled from the Caenorhabditis elegans (C. elegans) GluClα (GLC-1) subunit can inherently respond to IVM but not to glutamate (the neurotransmitter)...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28427032/social-cognition-in-bipolar-disorder-focus-on-emotional-intelligence
#5
C Varo, E Jimenez, B Solé, C M Bonnín, C Torrent, E Valls, I Morilla, G Lahera, A Martínez-Arán, E Vieta, M Reinares
BACKGROUND: The present study aims to characterize emotional intelligence (EI) variability in a sample of euthymic bipolar disorder (BD) patients through the Mayer- Salovey-Caruso Emotional Intelligence Test (MSCEIT). METHOD: A total of 134 euthymic BD outpatients were recruited and divided into three groups according to the total Emotional Intelligence Quotient (EIQ) score of the MSCEIT, following a statistical criterion of scores 1.5SDs above/below the normative group mean, as follows: a low performance (LP) group (EIQ <85), a normal performance (NP) group (85≤EIQ≤115), and a high performance (HP) group (EIQ >115)...
April 9, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28421980/guidelines-for-the-recognition-and-management-of-mixed-depression
#6
Stephen M Stahl, Debbi A Morrissette, Gianni Faedda, Maurizio Fava, Joseph F Goldberg, Paul E Keck, Yena Lee, Gin Malhi, Ciro Marangoni, Susan L McElroy, Michael Ostacher, Joshua D Rosenblat, Eva Solé, Trisha Suppes, Minoru Takeshima, Michael E Thase, Eduard Vieta, Allan Young, Mark Zimmerman, Roger S McIntyre
A significant minority of people presenting with a major depressive episode (MDE) experience co-occurring subsyndromal hypo/manic symptoms. As this presentation may have important prognostic and treatment implications, the DSM-5 codified a new nosological entity, the "mixed features specifier," referring to individuals meeting threshold criteria for an MDE and subthreshold symptoms of (hypo)mania or to individuals with syndromal mania and subthreshold depressive symptoms. The mixed features specifier adds to a growing list of monikers that have been put forward to describe phenotypes characterized by the admixture of depressive and hypomanic symptoms (e...
February 28, 2017: CNS Spectrums
https://www.readbyqxmd.com/read/28419399/low-fluence-photodynamic-therapy-versus-graded-subthreshold-transpupillary-thermotherapy-for-chronic-central-serous-chorioretinopathy-results-from-a-prospective-study
#7
George J Manayath, Smita S Karandikar, Siddharth Narendran, Karan A Kumarswamy, V R Saravanan, Rodney J Morris, Narendran Venkatapathy
BACKGROUND AND OBJECTIVE: The authors compare low fluence photodynamic therapy (PDT) against graded subthreshold transpupillary thermotherapy (TTT) for chronic central serous chorioretinopathy (CSC). PATIENTS AND METHODS: Forty-two eyes of 42 patients with chronic CSC were included in this prospective, nonrandomized, interventional trial. All patients were offered PDT as an initial intervention. If they declined PDT, TTT was offered. RESULTS: Twenty patients underwent PDT and 22 underwent TTT...
April 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28419390/adolescent-stress-as-a-driving-factor-for-schizophrenia-development-a-basic-science-perspective
#8
Felipe V Gomes, Anthony A Grace
Schizophrenia has been associated with heightened stress responsivity in adolescence that precedes onset of psychosis. We now report that multiple stressors during adolescence in normal rats leads to deficits in adults analogous to that seen in schizophrenia patients. Moreover, impairment of stress control by lesion of the prelimbic prefontal cortex in adolescence caused previously subthreshold levels of stress to induce these deficit states when tested as adults. Thus, predisposition to stress hyper-responsivity, or exposure to substantial stressors, during adolescence can trigger a cascade of events that result in a schizophrenia-like profile in adults...
May 1, 2017: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/28415870/longitudinal-changes-in-the-antecedent-and-early-manifest-course-of-bipolar-disorder-a-narrative-review-of-prospective-studies
#9
Andrea Pfennig, Karolina Leopold, Philipp Ritter, Anne Böhme, Emanuel Severus, Michael Bauer
OBJECTIVE: Prospective study designs ideally allow patients to be followed from the first manifestations of the illness or even from an at-risk stage. It can thus provide data on the predictive value of changes in clinical symptomatology, cognition or further biological markers to broaden our understanding of the etiopathology and symptomatic trajectory of bipolar disorders. The scope of this narrative review is to summarize evidence from prospectively collected data on psychopathological and other clinical and biological changes in the early developmental course of bipolar disorders...
May 2017: Australian and New Zealand Journal of Psychiatry
https://www.readbyqxmd.com/read/28411273/low-frequency-cortical-oscillations-entrain-to-sub-threshold-rhythmic-auditory-stimuli
#10
Sanne Ten Oever, Charles E Schroeder, David Poeppel, Nienke van Atteveldt, Ashesh D Mehta, Pierre Mégevand, David M Groppe, Elana Zion-Golumbic
Many environmental stimuli contain temporal regularities, a feature which can help predict forthcoming input. Phase-locking (entrainment) of ongoing low-frequency neuronal oscillations to rhythmic stimuli is proposed as a potential mechanism for enhancing neuronal responses and perceptual sensitivity, by aligning high-excitability phases to events within a stimulus stream. Previous experiments show that rhythmic structure has a behavioral benefit even when the rhythm itself is below perceptual detection thresholds (Ten Oever et al...
April 14, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28410857/measuring-participant-effort-in-a-depression-prevention-trial-who-engages-in-problem-solving-therapy
#11
Sarah T Stahl, Steven M Albert, Mary Amanda Dew, Stewart Anderson, Jordan F Karp, Ariel G Gildengers, Meryl A Butters, Charles F Reynolds
OBJECTIVE: To determine the acceptability of clinical interventions for depression prevention, identification of clinical characteristics associated with intervention engagement is needed. The purpose of this study is to describe levels and correlates of participant engagement in Problem Solving Therapy (PST) in adults 60 and older with subthreshold depression. METHODS: As part of a clinical trial to prevent depression among older adults with subthreshold depression, participants who were randomized to receive PST completed 6-8 sessions in which they learned skills to solve self-selected problems that were contributing to stress and reduced quality of life...
March 14, 2017: American Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28407233/language-disorder-and-retrospectively-reported-sexual-abuse-of-girls-severity-and-disclosure
#12
E B Brownlie, Eva Graham, Lin Bao, Emiko Koyama, Joseph H Beitchman
BACKGROUND: Despite emerging evidence for an association between communication disorders and maltreatment, little research has examined sexual abuse characteristics or disclosure experiences among individuals with language disorder (LD). Given that communication difficulties may constitute a barrier to disclosure, the disclosure experiences among individuals with and without communication difficulties may also differ. METHODS: Five-year-old children identified with a language and/or speech disorder from a nonclinical community sample and a control group were followed to adulthood in a prospective longitudinal study...
April 13, 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/28406742/reading-disability-spectrum-early-and-late-recognition-subthreshold-and-full-comorbidity
#13
Krisztina Tárnokiné Törő, Mónika Miklósi, Eszter Horanyi, Gábor Pers Kovács, Judit Balázs
Several studies have reported high comorbidity for reading disability (RD) and psychiatric disorders. The aim of this study was to investigate the comorbidity of subthreshold and full psychiatric disorders with RD while comparing subgroups based on age of RD recognition (early vs. late). We analyzed data from 130 children with RD and 82 typically developing children aged 7 to 18 years. RD was assessed with the Dyslexia Differential Diagnosis Maastricht-Hungarian Standard Test. Psychiatric diagnoses were based on the Mini International Neuropsychiatric Interview Kid...
April 1, 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/28402857/the-retinal-pigment-epithelium-is-a-notch-signaling-niche-in-the-mouse-retina
#14
Taejeong Ha, Kyeong Hwan Moon, Le Dai, Jun Hatakeyama, Keejung Yoon, Hee-Sae Park, Young-Yoon Kong, Kenji Shimamura, Jin Woo Kim
Notch signaling in neural progenitor cell is triggered by ligands expressed in adjacent cells. To identify the sources of active Notch ligands in the mouse retina, we negatively regulated Notch ligand activity in various neighbors of retinal progenitor cells (RPCs) by eliminating mindbomb E3 ubiquitin protein ligase 1 (Mib1). Mib1-deficient retinal cells failed to induce Notch activation in intra-lineage RPCs, which prematurely differentiated into neurons; however, Mib1 in post-mitotic retinal ganglion cells was not important...
April 11, 2017: Cell Reports
https://www.readbyqxmd.com/read/28400576/a-sputtered-silicon-oxide-electrolyte-for-high-performance-thin-film-transistors
#15
Xiaochen Ma, Jiawei Zhang, Wensi Cai, Hanbin Wang, Joshua Wilson, Qingpu Wang, Qian Xin, Aimin Song
Low operating voltages have been long desired for thin-film transistors (TFTs). However, it is still challenging to realise 1-V operation by using conventional dielectrics due to their low gate capacitances and low breakdown voltages. Recently, electric double layers (EDLs) have been regarded as a promising candidate for low-power electronics due to their high capacitance. In this work, we present the first sputtered SiO2 solid-state electrolyte. In order to demonstrate EDL behaviour, a sputtered 200 nm-thick SiO2 electrolyte was incorporated into InGaZnO TFTs as the gate dielectric...
April 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28395177/regional-amyloid-burden-and-lacune-in-pure-subcortical-vascular-cognitive-impairment
#16
Yun Jeong Hong, Chan-Mi Kim, Ji Eun Kim, Jee Hoon Roh, Jae Seung Kim, Sang Won Seo, Duk L Na, Jae-Hong Lee
We investigated the amyloid and vascular burden in Pittsburgh compound B (PiB)-negative subcortical vascular mild cognitive impairment (svMCI) and PiB-negative subcortical ischemic vascular dementia (SIVD) to elucidate the potential roles of amyloid deposition and small vessel disease (SVD). Thirty-eight svMCI patients and 42 SIVD patients were enrolled. The regional PiB uptake values and SVD markers were obtained and compared between groups. Additionally, correlations among amyloid burden, SVD, and cognition were made...
March 16, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28393745/correlation-of-reduced-social-communicational-and-interactional-skills-with-regional-grey-matter-volumes-in-schizophrenia-patients
#17
Miho Ota, Junko Matsuo, Noriko Sato, Toshiya Teraishi, Hiroaki Hori, Kotaro Hattori, Yoko Kamio, Hiroshi Kunugi
OBJECTIVE: Recent studies have detected similarities between autism spectrum disorder and schizophrenia. We investigated structural abnormalities associated with autistic-like traits in patients with schizophrenia by voxel-based morphometry. METHODS: Patients with schizophrenia and healthy subjects were evaluated by the adult version of the social responsiveness scale (SRS-A), which is sensitive to autistic traits and symptoms even under subthreshold conditions, and magnetic resonance imaging...
April 10, 2017: Acta Neuropsychiatrica
https://www.readbyqxmd.com/read/28393076/subthreshold-depression-and-clinically-significant-depression-in-an-italian-population-of-70-74-year-olds-prevalence-and-association-with-perceptions-of-self
#18
Roberta Vaccaro, Paola Borrelli, Simona Abbondanza, Annalisa Davin, Letizia Polito, Mauro Colombo, Silvia Francesca Vitali, Simona Villani, Antonio Guaita
Estimates of depressive disorders in the elderly vary depending on how cases are defined. We estimated the prevalence of subthreshold depression (SD) and clinically significant depression (D) in a population of 70-74-year-olds. We also looked for associations with sociodemographic factors and perceptions of self. Participants underwent a multidimensional assessment (social, medical, and neuropsychological). The estimated prevalence of SD was 15.71% (95% CI: 13.70-17.72), while that of D was 5.58% (95% CI: 4...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28391713/impact-of-insomnia-on-pain-in-postmenopausal-women
#19
C Frange, M Fernanda Naufel, M Levy Andersen, E Beraldi Ribeiro, M J B Castelo Girão, S Tufik, H Hachul
BACKGROUND: Sleep disturbances and pain are assumed to be reciprocally linked. Insomnia and pain are central symptoms of the postmenopausal period and are closely related. Insomnia affects quality of life, increases pain sensitivity, the risk of pain-related disability, and other health problems. OBJECTIVE: To investigate whether insomnia influences aspects of pain (pain intensity and the effect of pain on daily function) in postmenopausal women, and to evaluate the objective sleep pattern of insomniacs with pain...
April 9, 2017: Climacteric: the Journal of the International Menopause Society
https://www.readbyqxmd.com/read/28391591/syrian-hamster-neuroplasticity-mechanisms-fail-as-temperature-declines-to-15%C3%A2-%C3%A2-c-but-histaminergic-neuromodulation-persists
#20
Jock S Hamilton, Sat M Chau, Kevin J Malins, Giancarlo G Ibanez, John M Horowitz, Barbara A Horwitz
Previous research suggests that hippocampal neurons in mammalian hibernators shift their major function from memory formation at euthermic brain temperatures (T b = ~37 °C) to modulation of hibernation bout duration as T b decreases. This role of hippocampal neurons during torpor is based in part on in vivo studies showing that histamine (HA) infused into ground squirrel hippocampi lengthened torpor bouts by ~50%. However, it was unclear if HA acted directly on hippocampal neurons or on downstream brain regions via HA spillover into lateral ventricles...
April 9, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
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