keyword
MENU ▼
Read by QxMD icon Read
search

PSD

keyword
https://www.readbyqxmd.com/read/28735137/endonasal-operative-corridor-expansion-by-sphenoidal-pneumosinus-dilatans-in-tuberculum-sellae-meningiomas
#1
Amol Raheja, Michael Karsy, Ilyas Eli, Jian Guan, William T Couldwell
A retrospective cohort study of patients with tuberculum sellae meningioma (TSM)-associated sphenoidal pneumosinus dilatans (PSD) over a recent epoch was evaluated using a propensity-matched morphometric analysis. A total of 38 patients with TSM and sphenoidal PSD were identified and matched by age and sex to 32 patients without tumors (controls). Overall, no significant difference between test and control groups was noted in sphenoid sinus size or other parameters; however, significantly greater mean distance from the posterior margin of the planum sphenoidale to the diaphragma sella (0...
July 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28724985/increased-neural-noise-and-impaired-brain-synchronization-in-fibromyalgia-patients-during-cognitive-interference
#2
A J González-Villar, N Samartin-Veiga, M Arias, M T Carrillo-de-la-Peña
Fibromyalgia (FM) and other chronic pain syndromes are associated with cognitive dysfunction and attentional deficits, but the neural basis of such alterations is poorly understood. Dyscognition may be related to high levels of neural noise, understood as increased random electrical fluctuations that impair neural communication; however, this hypothesis has not yet been tested in any chronic pain condition. Here we compared electroencephalographic activity (EEG) in 18 FM patients -with high self-reported levels of cognitive dysfunction- and 22 controls during a cognitive control task...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28723268/assay-of-calcium-transients-and-synapses-in-rat-hippocampal-neurons-by-kinetic-image-cytometry-and-high-content-analysis-an-in-vitro-model-system-for-postchemotherapy-cognitive-impairment
#3
Patrick M McDonough, Natalie L Prigozhina, Ranor C B Basa, Jeffrey H Price
Postchemotherapy cognitive impairment (PCCI) is commonly exhibited by cancer patients treated with a variety of chemotherapeutic agents, including the endocrine disruptor tamoxifen (TAM). The etiology of PCCI is poorly understood. Our goal was to develop high-throughput assay methods to test the effects of chemicals on neuronal function applicable to PCCI. Rat hippocampal neurons (RHNs) were plated in 96- or 384-well dishes and exposed to test compounds (forskolin [FSK], 17β-estradiol [ES]), TAM or fulvestrant [FUL], aka ICI 182,780) for 6-14 days...
July 2017: Assay and Drug Development Technologies
https://www.readbyqxmd.com/read/28720980/efficacy-of-cognitive-rehabilitation-therapy-on-poststroke-depression-among-survivors-of-first-stroke-attack-in-ibadan-nigeria
#4
Olugbemi Olukolade, Helen O Osinowo
BACKGROUND AND PURPOSE: Poststroke depression (PSD) is a common complication after stroke. There is no adequate treatment for PSD. This study examined efficacy of cognitive rehabilitation therapy (CRT) in the treatment of PSD among stroke survivors. METHODS: An experimental design, 30 participants with poststroke depression were randomly assigned into 3 groups of cognitive rehabilitation therapy (CRT), psychoeducation (PE), and the control group (CG). CRT consisted of nine sessions with three-phased sessions focusing on activity stimulation, negative thoughts, and people contacts, PE consisted of nine sessions focusing on knowledge on stroke and poststroke depression, and the CG group was on the waiting list...
2017: Behavioural Neurology
https://www.readbyqxmd.com/read/28720484/long-term-enzyme-replacement-therapy-improves-neurocognitive-functioning-and-hippocampal-synaptic-plasticity-in-immune-tolerant-alpha-mannosidosis-mice
#5
Stijn Stroobants, Markus Damme, Ann Van der Jeugd, Ben Vermaercke, Claes Andersson, Jens Fogh, Paul Saftig, Judith Blanz, Rudi D'Hooge
Alpha-mannosidosis is a glycoproteinosis caused by deficiency of lysosomal acid alpha-mannosidase (LAMAN), which markedly affects neurons of the central nervous system (CNS), and causes pathognomonic intellectual dysfunction in the clinical condition. Cognitive improvement consequently remains a major therapeutic objective in research on this devastating genetic error. Immune-tolerant LAMAN knockout mice were developed to evaluate the effects of enzyme replacement therapy (ERT) by prolonged administration of recombinant human enzyme...
July 15, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28717223/investigation-of-the-changes-in-the-power-distribution-in-resting-state-brain-networks-associated-with-pure-conduct-disorder
#6
Jiang Zhang, Jiansong Zhou, Fengmei Lu, Liangyin Chen, Yunzhi Huang, Huafu Chen, Yutao Xiang, Gang Yang, Zhen Yuan
Conduct disorder (CD) is a psychiatric disorder in children and adolescence. To investigate changes in the power distribution in brain networks between CD and typically developing (TD) groups, resting-state functional magnetic resonance imaging (rsfMRI) data of thirty-six subjects were first recorded, and then the data were preprocessed using DPARSF and SPM8. Meanwhile, the power of the blood oxygenation level-dependent (BOLD) signals of ninety brain regions was acquired using the integral of the Welch power spectral density (PSD)...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28716256/post-stroke-depression-in-ghana-characteristics-and-correlates
#7
Fred Stephen Sarfo, Carolyn Jenkins, Arti Singh, Mayowa Owolabi, Akin Ojagbemi, Nathaniel Adusei, Raelle Saulson, Bruce Ovbiagele
BACKGROUND: Poststroke depression (PSD) is prevalent and is an important determinant of functional recovery, quality of life and mortality after stroke. Scanty data on the nature of PSD among stroke survivors in sub-Saharan Africa prompted this study. OBJECTIVE: To assess the prevalence and predictors of depression in a convenience sample of Ghanaian stroke survivors. METHODS: We evaluated consecutive stroke survivors encountered at a comprehensive neurology clinic in a tertiary medical center in Ghana...
August 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28714915/vibration-measurement-method-of-a-string-in-transversal-motion-by-using-a-psd
#8
Che-Hua Yang, Tai-Chieh Wu
A position sensitive detector (PSD) is frequently used for the measurement of a one-dimensional position along a line or a two-dimensional position on a plane, but is more often used for measuring static or quasi-static positions. Along with its quick response when measuring short time-spans in the micro-second realm, a PSD is also capable of detecting the dynamic positions of moving objects. In this paper, theoretical modeling and experiments are conducted to explore the frequency characteristics of a vibrating string while moving transversely across a one-dimensional PSD...
July 17, 2017: Sensors
https://www.readbyqxmd.com/read/28714067/evaluation-of-plastic-scintillator-detector-for-small-field-stereotactic-patient-specific-quality-assurance
#9
Yujiao Qin, Stephen J Gardner, Joshua Kim, Yimei Huang, Ning Wen, Anthony Doemer, Indrin J Chetty
PURPOSE: To evaluate the performance of a commercial plastic scintillator detector (PSD) for small-field stereotactic patient-specific quality assurance (QA) measurements using flattening-filter-free beam. METHODS: A total of ten spherical targets (volume range: [0.03cc-2cc]) were planned with two techniques: (1) Dynamic Conformal Arc (DCA-10 plans), and (2) Volumetric Modulated Arc Therapy (VMAT-10 plans). All plans were generated using Varian Eclipse treatment planning system, and AcurosXB v...
July 17, 2017: Medical Physics
https://www.readbyqxmd.com/read/28713328/recovery-from-unrecognized-sleep-loss-accumulated-in-daily-life-improved-mood-regulation-via-prefrontal-suppression-of-amygdala-activity
#10
Yuki Motomura, Shingo Kitamura, Kyoko Nakazaki, Kentaro Oba, Ruri Katsunuma, Yuri Terasawa, Akiko Hida, Yoshiya Moriguchi, Kazuo Mishima
Many modern people suffer from sleep debt that has accumulated in everyday life but is not subjectively noticed [potential sleep debt (PSD)]. Our hypothesis for this study was that resolution of PSD through sleep extension optimizes mood regulation by altering the functional connectivity between the amygdala and prefrontal cortex. Fifteen healthy male participants underwent an experiment consisting of a baseline (BL) evaluation followed by two successive interventions, namely, a 9-day sleep extension followed by one night of total sleep deprivation (TSD)...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28713243/synaptic-interactome-mining-reveals-p140cap-as-a-new-hub-for-psd-proteins-involved-in-psychiatric-and-neurological-disorders
#11
Annalisa Alfieri, Oksana Sorokina, Annie Adrait, Costanza Angelini, Isabella Russo, Alessandro Morellato, Michela Matteoli, Elisabetta Menna, Elisabetta Boeri Erba, Colin McLean, J Douglas Armstrong, Ugo Ala, Joseph D Buxbaum, Alfredo Brusco, Yohann Couté, Silvia De Rubeis, Emilia Turco, Paola Defilippi
Altered synaptic function has been associated with neurological and psychiatric conditions including intellectual disability, schizophrenia and autism spectrum disorder (ASD). Amongst the recently discovered synaptic proteins is p140Cap, an adaptor that localizes at dendritic spines and regulates their maturation and physiology. We recently showed that p140Cap knockout mice have cognitive deficits, impaired long-term potentiation (LTP) and long-term depression (LTD), and immature, filopodia-like dendritic spines...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28709029/study-of-sampling-rate-influence-on-neutron-gamma-discrimination-with-stilbene-coupled-to-a-silicon-photomultiplier
#12
Jinglong Zhang, Michael E Moore, Zhonghai Wang, Zhou Rong, Chaowen Yang, Jason P Hayward
Choosing a digitizer with an appropriate sampling rate is often a trade-off between performance and economy. The influence of sampling rates on the neutron-gamma Pulse Shape Discrimination (PSD) with a solid stilbene scintillator coupled to a Silicon Photomultiplier was investigated in this work. Sampling rates from 125MSPS to 2GSPS from a 10-bit digitizer were used to collect detector pulses produced by the interactions of a Cf-252 source. Due to the decreased signal-to-noise ratio (SNR), the PSD performance degraded with reduced sampling rates...
June 23, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/28708775/continuous-cardiac-autonomic-and-hemodynamic-responses-to-isometric-exercise
#13
Katrina A Taylor, Jonathan D Wiles, Damian D Coleman, Rajan Sharma, Jamie M Oʼdriscoll
PURPOSE: Elevated arterial blood pressure (BP) is associated with autonomic dysfunction and impaired hemodynamic control mechanisms. Isometric exercise (IE) training has been demonstrated effective at reducing BP; however, the continuous cardiovascular responses during IE are underinvestigated. We hypothesized that reflex autonomic cardiovascular control is an important mediator in reducing BP. To test our hypothesis, we investigated continuous cardiac autonomic modulation and baroreceptor reflex sensitivity (BRS) in response to IE...
August 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28706196/synaptic-gap-and-gef-complexes-cluster-proteins-essential-for-gtp-signaling
#14
Brent Wilkinson, Jing Li, Marcelo P Coba
GTPase-activating proteins (GAPs) and guanine exchange factors (GEFs) play essential roles in regulating the activity of small GTPases. Several GAPs and GEFs have been shown to be present at the postsynaptic density (PSD) within excitatory glutamatergic neurons and regulate the activity of glutamate receptors. However, it is not known how synaptic GAP and GEF proteins are organized within the PSD signaling machinery, if they have overlapping interaction networks, or if they associate with proteins implicated in contributing to psychiatric disease...
July 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28701415/structure-of-psd-95-map1a-complex-reveals-unique-target-recognition-mode-of-maguk-gk-domain
#15
Yitan Xia, Yuan Shang, Rongguang Zhang, Jinwei Zhu
The PSD-95 family of membrane-associated guanylate kinases (MAGUKs) are major synaptic scaffold proteins and play crucial roles in the dynamic regulation of dendritic remodeling which is understood to be the foundation of synaptogenesis and synaptic plasticity. The guanylate kinase (GK) domain of MAGUK family proteins functions as a phosphor-peptide binding module. However, the GK domain of PSD-95 has been found to directly bind to a peptide sequence within the C-terminal region of neuronal-specific microtubule-associated protein 1A (MAP1A), though the detailed molecular mechanism governing this phosphorylation-independent interaction at the atomic level is missing...
July 12, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28699236/piperonal-attenuates-visceral-adiposity-in-mice-fed-a-high-fat-diet-potential-involvement-of-the-adenylate-cyclase-protein-kinase-a-dependent-pathway
#16
Songyi Chu, Vikram P Narayan, Mi-Kyung Sung, Taesun Park
SCOPE: Piperonal is an aromatic compound found in vanilla and has a floral odor resembling vanillin. This study was aimed to test whether piperonal attenuates visceral adiposity induced by a high-fat diet (HFD) in mice and to explore the underlying molecular mechanisms. METHODS AND RESULTS: Male C57BL/6N mice were fed a normal diet, HFD, or 0.05% piperonal-supplemented HFD (PSD) for 10 weeks. PSD-fed mice showed attenuation of body weight gain, total visceral fat pad weights, and plasma lipid levels compared to HFD-fed mice...
July 12, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28698933/distinct-effects-on-the-dendritic-arbor-occur-by-microbead-versus-bath-administration-of-brain-derived-neurotrophic-factor
#17
Kate M O'Neill, Munjin Kwon, Katherine E Donohue, Bonnie L Firestein
Proper communication among neurons depends on an appropriately formed dendritic arbor, and thus, aberrant changes to the arbor are implicated in many pathologies, ranging from cognitive disorders to neurodegenerative diseases. Due to the importance of dendritic shape to neuronal network function, the morphology of dendrites is tightly controlled and is influenced by both intrinsic and extrinsic factors. In this work, we examine how brain-derived neurotrophic factor (BDNF), one of the most well-studied extrinsic regulators of dendritic branching, affects the arbor when it is applied locally via microbeads to cultures of hippocampal neurons...
July 11, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28697571/psd-93-attenuates-amyloid-%C3%AE-mediated-cognitive-dysfunction-by-promoting-the-catabolism-of-amyloid-%C3%AE
#18
Linjie Yu, Yi Liu, Hui Yang, Xiaolei Zhu, Xiang Cao, Jun Gao, Hui Zhao, Yun Xu
Amyloid-β (Aβ) is a key neuropathological hallmark of Alzheimer's disease (AD). Postsynaptic density protein 93 (PSD-93) is a key scaffolding protein enriched at postsynaptic sites. The aim of the present study was to examine whether PSD-93 overexpression could alleviate Aβ-induced cognitive dysfunction in APPswe/PS1dE9 (APP/PS1) mice by reducing Aβ levels in the brain. The level of PSD-93 was significantly decreased in the hippocampus of 6-month-old APP/PS1 mice compared with that in wild-type mice. Following lentivirus-mediated PSD-93 overexpression, cognitive function, synaptic function, and amyloid burden were investigated...
July 1, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28697440/electrochemical-nucleic-acid-detection-based-on-parallel-structural-dsdna-recombinant-azurin-hybrid
#19
Mohsen Mohammadniaei, Taek Lee, Jinho Yoon, Donghyun Lee, Jeong-Woo Choi
Several challenges remained to fabricate a molecular-level nucleic acid biosensor such as surface immobilization control, single mismatch detection and low current response. To overcome those issues, for the first time, authors presented a novel parallel structural dsDNA/recombinant azurin (PSD/rAzu) hybrid structure for the general nucleic acid detection. The PSD was designed and introduced by the optimized 8 Ag(+) ions to have greater conductivity than the canonical dsDNA, and conjugated with rAzu to develop a general platform for electrochemical detection of miRNAs and viral DNAs with high reproducibility and ultra-sensitivity towards single base pair mutation...
July 5, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28695328/study-of-the-emitted-dose-after-two-separate-inhalations-at-different-inhalation-flow-rates-and-volumes-and-an-assessment-of-aerodynamic-characteristics-of-indacaterol-onbrez-breezhaler-%C3%A2-150-and-300%C3%A2-%C3%AE-g
#20
Mohamad Abadelah, Henry Chrystyn, Golshan Bagherisadeghi, Gaballa Abdalla, Hassan Larhrib
Onbrez Breezhaler® is a low-resistance capsule-based device that was developed to deliver indacaterol maleate. The study was designed to investigate the effects of both maximum flow rate (MIF) and inhalation volume (Vin) on the dose emission of indacaterol 150 and 300 μg dose strengths after one and two inhalations using dose unit sampling apparatus (DUSA) as well as to study the aerodynamic characteristics of indacaterol Breezhaler® using the Andersen cascade impactor (ACI) at a different set of MIF and Vin...
July 10, 2017: AAPS PharmSciTech
keyword
keyword
15408
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"