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https://www.readbyqxmd.com/read/29783181/autistic-traits-in-epilepsy-models-why-when-and-how
#1
REVIEW
Jana Velíšková, Jill L Silverman, Melissa Benson, Pierre-Pascal Lenck-Santini
Autism spectrum disorder (ASD) is a common comorbidity of epilepsy and seizures and/or epileptiform activity are observed in a significant proportion of ASD patients. Current research also implies that autistic traits can be observed to a various degree in mice and rats with seizures. This suggests that there are shared mechanisms in both ASD and epilepsy syndromes. Here, we first review the standard, validated methods used to assess autistic traits in animal models as well as their limitations with regards to epilepsy models...
May 18, 2018: Epilepsy Research
https://www.readbyqxmd.com/read/29783143/metallic-nanocatalysts-for-electrochemical-co-2-reduction-in-aqueous-solutions
#2
Yuanxing Wang, Cailing Niu, Dunwei Wang
How to effectively and efficiently reduce carbon dioxide (CO2 ) to value-added chemicals represent a frontier in catalysis research. Due to the high activation energy needs and the endothermic nature of CO2 reduction, the reactions are difficult to carry out. When H2 O is present, hydrogen evolution reactions (HER) often compete favorably with CO2 reduction reactions. For these reactions, catalysts are of critical importance to CO2 reduction. In this article, we review the various metal nanocatalysts for electrochemical CO2 reduction (ECR) reactions...
May 16, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29782970/underlying-neural-alpha-frequency-patterns-associated-with-intra-hemispheric-inhibition-during-an-interhemispheric-transfer-task
#3
Stephanie L Simon-Dack, Brian Kraus, Zachary Walter, Shelby Smith, Chelsea Cadle
Interhemispheric transfer measured via differences in right- or left-handed motoric responses to lateralized visual stimuli, known as the crossed-uncrossed difference (CUD), is one way of identifying patterns of processing that are vital for understanding the transfer of neural signals. Examination of interhemispheric transfer by means of the CUD is not entirely explained by simple measures of response time. Multiple processes contribute to wide variability observed in CUD reaction times. Prior research has suggested that intra-hemispheric inhibitory processes may be involved in regulation of speed of transfer...
May 18, 2018: Biological Psychology
https://www.readbyqxmd.com/read/29782926/decoding-cell-signalling-and-regulation-of-oligodendrocyte-differentiation
#4
REVIEW
A K Santos, M S Vieira, R Vasconcellos, V A M Goulart, A H Kihara, R R Resende
Oligodendrocytes are fundamental for the functioning of the nervous system; they participate in several cellular processes, including axonal myelination and metabolic maintenance for astrocytes and neurons. In the mammalian nervous system, they are produced through waves of proliferation and differentiation, which occur during embryogenesis. However, oligodendrocytes and their precursors continue to be generated during adulthood from specific niches of stem cells that were not recruited during development. Deficiencies in the formation and maturation of these cells can generate pathologies mainly related to myelination...
May 18, 2018: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/29782658/recent-advances-on-black-phosphorus-for-energy-storage-catalysis-and-sensor-applications
#5
REVIEW
Hanwen Liu, Kui Hu, Dafeng Yan, Ru Chen, Yuqin Zou, Hongbo Liu, Shuangyin Wang
As a new type of 2D semiconductor, black phosphorus (BP) possesses high charge-carrier mobility and theoretical capacity, thickness-dependent bandgap, and anisotropic structure, which has attracted tremendous attention since early 2014. To explore its full application in all aspects, studies based on BP nanostructures are swiftly expanding from the electronic field to energy storage and even biochemistry. The mechanism and application of BP in Li-/Na-ion battery anodes, oxygen evolution reaction/hydrogen evolution reaction catalysis, photocatalytic hydrogen production, and selective sensors are summarized...
May 21, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29782355/inhibition-of-vascular-endothelial-cell-leak-following-escherichia-coli-attachment-in-an-experimental-model-of-sepsis
#6
Tony M McHale, Carolina D Garciarena, Robert P Fagan, Stephen G J Smith, Ignacio Martin-Loches, Gerard F Curley, Fidelma Fitzpatrick, Steve W Kerrigan
OBJECTIVES: The vascular endothelium is a major target of sepsis-induced events, and endothelial activation accounts for much of the pathology of sepsis. Urinary tract infections and pneumonia caused by Escherichia coli are among of the most common infections causing sepsis in both community and hospital settings. Currently, there are no approved drugs on the market to treat the underlying pathophysiology of sepsis. The aim of this study is to elucidate the molecular mechanism by which E...
May 18, 2018: Critical Care Medicine
https://www.readbyqxmd.com/read/29782334/inhibitors-of-the-hiv-1-capsid-a-target-of-opportunity
#7
Stephanie K Carnes, Jonathan H Sheehan, Christopher Aiken
PURPOSE OF REVIEW: To summarize recent advances in the discovery of chemical inhibitors targeting the HIV capsid and research on their mechanisms of action. RECENT FINDINGS: HIV infection is critically dependent on functions of the viral capsid. Numerous studies have reported the identification of a variety of compounds that bind to the capsid protein; some of these inhibit reverse transcription and nuclear entry, steps required for infection. Other capsid-targeting compounds appear to act by perturbing capsid assembly, resulting in noninfectious progeny virions...
May 18, 2018: Current Opinion in HIV and AIDS
https://www.readbyqxmd.com/read/29782319/the-relationship-between-obstructive-sleep-apnea-and-alzheimer-s-disease
#8
Andreia Andrade, Omonigho M Bubu, Andrew W Varga, Ricardo S Osorio
 Obstructive sleep apnea (OSA) and Alzheimer's disease (AD) are highly prevalent conditions with growing impact on our aging society. While the causes of OSA are now better characterized, the mechanisms underlying AD are still largely unknown, challenging the development of effective treatments. Cognitive impairment, especially affecting attention and executive functions, is a recognized clinical consequence of OSA. A deeper contribution of OSA to AD pathogenesis is now gaining support from several lines of research...
May 16, 2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29782169/indium-catalysts-for-low-pressure-co-2-epoxide-ring-opening-copolymerization-evidence-for-a-mononuclear-mechanism
#9
Arnaud Thevenon, Anish Cyriac, Dominic Myers, Andrew J P White, Christopher B Durr, Charlotte K Williams
The alternating copolymerization of CO2 /epoxides is a useful means to incorporate high levels of carbon dioxide into polymers. The reaction is generally proposed to occur by bimetallic or bicomponent pathways. Here, the first indium catalysts are presented, which are proposed to operate by a distinct mononuclear pathway. The most active and selective catalysts are phosphasalen complexes, which feature ligands comprising two iminophosphoranes linked to sterically hindered ortho-phenolates. The catalysts are active at 1 bar pressure of carbon dioxide and are most effective without any cocatalyst...
May 21, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29781659/nicotine-deprivation-increases-pain-intensity-neurogenic-inflammation-and-mechanical-hyperalgesia-among-daily-tobacco-smokers
#10
Joseph W Ditre, Emily L Zale, Lisa R LaRowe, Jesse D Kosiba, Martin J De Vita
An evolving reciprocal model posits that pain and tobacco smoking behavior interact in the manner of a positive feedback loop, resulting in greater pain and the maintenance of nicotine dependence. There is also reason to believe that abstaining from smoking may increase pain during the early stages of smoking cessation. The goal of this study was to test the effects of nicotine deprivation on experimental pain reactivity. Daily tobacco cigarette smokers (N = 165; 43% female) were randomized to either extended nicotine deprivation (12-24 hr smoking abstinence), minimal deprivation (2 hr smoking abstinence), or continued smoking conditions, prior to undergoing pain induction via topical capsaicin...
May 21, 2018: Journal of Abnormal Psychology
https://www.readbyqxmd.com/read/29781649/treatment-of-social-approach-processes-in-adults-with-social-anxiety-disorder
#11
Lynn E Alden, Kristin Buhr, Melisa Robichaud, Jennifer L Trew, M Leili Plasencia
OBJECTIVE: Despite the social impairment associated with social anxiety disorder (SAD), little research has examined the impact of treatment on positive relational functioning. Accordingly, the authors conducted a treatment outcome study to evaluate a cognitive behavior therapy (CBT) regimen augmented by a relational focus (CBT-R) relative to a graduated exposure-applied relaxation (GEAR) regimen and wait list (WL) control. To examine the mechanism(s) that underlies treatment effects, they used structural equation modeling (SEM) to evaluate two potential mediators, change in judgment biases and in safety behaviors...
June 2018: Journal of Consulting and Clinical Psychology
https://www.readbyqxmd.com/read/29781629/finding-peace-of-mind-when-there-still-is-so-much-left-undone-a-diary-study-on-how-job-stress-competence-need-satisfaction-and-proactive-work-behavior-contribute-to-work-related-rumination-during-the-weekend
#12
Oliver Weigelt, Christine J Syrek, Antje Schmitt, Tina Urbach
Unfinished work tasks have been identified as a significant job-related stressor in recent occupational stress research. Extending this research, we examine how and when not finishing one's tasks by the end of the work week affects work-related rumination at the weekend. Drawing on control theory, we examined competence need satisfaction as a mediating mechanism that links unfinished tasks at the end of the work week to work-related rumination at the weekend. Furthermore, we scrutinized whether proactive work behavior within the work week may neutralize the detrimental effects of unfinished tasks on competence need satisfaction and rumination...
May 21, 2018: Journal of Occupational Health Psychology
https://www.readbyqxmd.com/read/29781531/down-regulation-of-kif2a-inhibits-gastric-cancer-cell-invasion-via-suppressing-mt1-mmp
#13
Peng Zhao, Fei Lan, Hui Zhang, Guangwei Zeng, Dong Liu
Gastric cancer accounts for a sizeable proportion of global cancer mortality with high morbidity and poor prognosis. Kinesin superfamily proteins (KIFs) are microtubule-dependent motor proteins that function as oncogenes in cancer cells, it has been discovered in recent years. Kinesin family member 2a (KIF2A), a member of KIFs, has received attention for its role in carcinogenesis and its prognostic value in several human cancers such as breast cancer, colorectal cancer, and squamous cell carcinoma. However, the role of KIF2A in human gastric cancer remains unknown...
May 21, 2018: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29781452/research-biopsies-an-integrative-review-of-the-experiences-of-patients-with-cancer
#14
Elizabeth Abraham, Kathryn Post, Laura Spring, Giuliana Malvarosa, Elizabeth Tripp, Jeffrey M Peppercorn, Aditya Bardia, Karleen Habin
BACKGROUND: Research biopsies (RBs) are essential to understanding tumor biology and mechanisms of resistance and to advancing precision medicine. However, RBs have associated risks and may not benefit the patient. OBJECTIVES: The purpose of this integrative review is to summarize and synthesize the current literature on the experience, attitudes, and understanding of patients with cancer related to RBs. METHODS: Articles from January 2010 to February 2017 were retrieved via a search of MEDLINE®...
June 1, 2018: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/29781395/judicialization-2-0-understanding-right-to-health-litigation-in-real-time
#15
João Biehl, Mariana P Socal, Varun Gauri, Debora Diniz, Marcelo Medeiros, Gabriela Rondon, Joseph J Amon
Over the past two decades, debate over the whys, the hows, and the effects of the ever-expanding phenomenon of right-to-health litigation ('judicialization') throughout Latin America have been marked by polarised arguments and limited information. In contrast to claims of judicialization as a positive or negative trend, less attention has been paid to ways to better understand the phenomenon in real time. In this article, we propose a new approach-Judicialization 2.0-that recognises judicialization as an integral part of democratic life...
May 21, 2018: Global Public Health
https://www.readbyqxmd.com/read/29781310/when-the-research-is-not-reproducible-the-importance-of-author-initiated-and-institution-driven-responses-and-investigations
#16
Bor Luen Tang
Important and potentially useful findings in the sciences are under more intense public scrutiny now more than ever. Other researchers in the field dive into replicating and expanding the findings while the media swamps the community and the public with peripheral reporting and analyses. How should authors and the hosting/funding institutions respond when other workers in the field could not reproduce or replicate their published results? To illustrate the importance of author-initiated and institution-driven investigations in response to outcries of research irreproducibility, I draw on comparisons between three recent and well-publicized cases in the life sciences: betatrophin, STAP cells, and NgAgo...
May 20, 2018: Accountability in Research
https://www.readbyqxmd.com/read/29781218/fabrication-of-single-gel-with-different-mechanical-stiffness-using-three-dimensional-mold
#17
Gulsan Ara Sathi Kazi, Kazi Anisur Rahman, Mahmoud Farahat, Takuya Matsumoto
The hydrogel is considering as functional substrates for three-dimensional (3D) environment mimicking the native tissue in vitro. To get the cell or tissue culture result in different stiffness, researchers are used separate gel at the different time. Sometimes these results are manipulated by surrounding environment. To overcome this, we prepared a single hydrogel with different young modulus using a 3D printed mold and cell culture and tissue culture was performed to check the functional capacity. In this proposed device we successfully produced a multi properties agarose hydrogel on a single platform...
May 20, 2018: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29781050/testing-the-causal-direction-of-mediation-effects-in-randomized-intervention-studies
#18
Wolfgang Wiedermann, Xintong Li, Alexander von Eye
In a recent update of the standards for evidence in research on prevention interventions, the Society of Prevention Research emphasizes the importance of evaluating and testing the causal mechanism through which an intervention is expected to have an effect on an outcome. Mediation analysis is commonly applied to study such causal processes. However, these analytic tools are limited in their potential to fully understand the role of theorized mediators. For example, in a design where the treatment x is randomized and the mediator (m) and the outcome (y) are measured cross-sectionally, the causal direction of the hypothesized mediator-outcome relation is not uniquely identified...
May 21, 2018: Prevention Science: the Official Journal of the Society for Prevention Research
https://www.readbyqxmd.com/read/29781046/comparison-of-filtration-mechanisms-of-food-and-industrial-grade-tio-2-nanoparticles
#19
Chen Chen, Ian M Marcus, Travis Waller, Sharon L Walker
The removal of food and industrial grade titanium dioxide (TiO2 ) particles through drinking water filtration was assessed via direct visualization of an in situ 2-D micromodel. The goal of this research was to determine whether variances in surface composition, aggregate size, and ionic strength result in different transport and deposition processes in porous media. Food and industrial grade TiO2 particles were characterized by measuring their hydrodynamic diameter, zeta potential, and zero point of charge before introduction into the 2-D micromodel...
May 21, 2018: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29781033/microarray-analysis-of-circular-rna-expression-profiles-associated-with-gemcitabine-resistance-in-pancreatic-cancer-cells
#20
Chao Xu, Yue Yu, Fei Ding
Pancreatic cancer (PC) is one of the most malignant tumors of the digestive system due to its rapid progression, metastasis and resistance to chemotherapy. Gemcitabine (GEM) chemotherapy is the first‑choice treatment for advanced PC. However, the effect of GEM‑based chemotherapy on PC is limited due to the development of chemoresistance, and the molecular mechanisms underlying this resistance have yet to be investigated. Circular RNAs (circRNAs), which can function as microRNA sponges, have been found to be involved in the development of several types of cancer...
May 17, 2018: Oncology Reports
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