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https://www.readbyqxmd.com/read/28719901/patient-related-benefits-for-adults-with-cochlear-implantation-a-multicultural-longitudinal-observational-study
#1
Thomas Lenarz, Lida Muller, Hanna Czerniejewska-Wolska, Hector Vallés Varela, César Orús Dotú, Marcin Durko, Alicia Huarte Irujo, Bartosz Piszczatowski, Marek Zadrożniak, Colin Irwin, Petra L Graham, Josie Wyss
OBJECTIVES: To assess subjectively perceived, real-world benefits longitudinally for unilateral cochlear implant (CI) recipients in a multinational population treated routinely. To identify possible predictors of self-reported benefits. DESIGN: This was a prospective, multicenter, repeated-measures study. Self-assessment of performance at preimplantation and postimplantation at 1, 2, and 3 years using standardized, validated, local language versions of the Speech, Spatial, and Qualities of Hearing Scale (SSQ), and the Health Utilities Index Mark 3 (HUI3) was performed...
July 19, 2017: Audiology & Neuro-otology
https://www.readbyqxmd.com/read/28719874/combined-effects-of-temperature-and-clomazone-gamit-%C3%A2-on-oxidative-stress-responses-and-b-esterase-activity-of-physalaemus-nattereri-leiuperidae-and-rhinella-schneideri-bufonidae-tadpoles
#2
Juliane Silberschmidt Freitas, Andreia Arantes Felício, Fabrício Barreto Teresa, Eduardo Alves de Almeida
Temperature is an important factor influencing the toxicity of chemicals in aquatic environments. Neotropical tadpoles experience large temperature fluctuations in their habitats and many species are distributed in areas impacted by agriculture. This study evaluated the effects caused by the exposure to clomazone (Gamit(®)) at different temperatures (28, 32 and 36 °C) on biochemical stress responses and esterase activities in Physalaemus nattereri and Rhinella schneideri tadpoles. Results evidenced that temperature modulates the effects of clomazone on biochemical response of tadpoles...
July 14, 2017: Chemosphere
https://www.readbyqxmd.com/read/28719602/prehospital-immune-responses-and-development-of-multiple-organ-dysfunction-syndrome-following-traumatic-injury-a-prospective-cohort-study
#3
Jon Hazeldine, David N Naumann, Emma Toman, David Davies, Jonathan R B Bishop, Zhangjie Su, Peter Hampson, Robert J Dinsdale, Nicholas Crombie, Niharika Arora Duggal, Paul Harrison, Antonio Belli, Janet M Lord
BACKGROUND: Almost all studies that have investigated the immune response to trauma have analysed blood samples acquired post-hospital admission. Thus, we know little of the immune status of patients in the immediate postinjury phase and how this might influence patient outcomes. The objective of this study was therefore to comprehensively assess the ultra-early, within 1-hour, immune response to trauma and perform an exploratory analysis of its relationship with the development of multiple organ dysfunction syndrome (MODS)...
July 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28719269/the-influence-of-household-and-community-level-sanitation-and-fecal-sludge-management-on-urban-fecal-contamination-in-households-and-drains-and-enteric-infection-in-children
#4
David Berendes, Amy Kirby, Julie A Clennon, Suraja Raj, Habib Yakubu, Juan Leon, Katharine Robb, Arun Kartikeyan, Priya Hemavathy, Annai Gunasekaran, Ben Ghale, J Senthil Kumar, Venkata Raghava Mohan, Gagandeep Kang, Christine Moe
AbstractUrban sanitation necessitates management of fecal sludge inside and outside the household. This study examined associations between household sanitation, fecal contamination, and enteric infection in two low-income neighborhoods in Vellore, India. Surveys and spatial analysis assessed the presence and clustering of toilets and fecal sludge management (FSM) practices in 200 households. Fecal contamination was measured in environmental samples from 50 households and household drains. Enteric infection was assessed from stool specimens from children under 5 years of age in these households...
June 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28719150/can-principles-of-the-surface-potential-be-combined-with-knowledge-of-natural-products-to-reduce-atrial-rhythm-disturbances
#5
EDITORIAL
H Ni, K Narsingani, H Zhang, W R Giles
Long lasting or chronic electrophysiological abnormalities in human atria are significant contributors to morbidity during healthy aging. Although both paroxysmal (brief) and chronic atrial fibrillation (AF) were considered to be benign; the notable association between maintained AF and stroke has resulted in AF now being a target for surgical intervention (ablation) and/or drug therapy. An interesting, forward looking paper from the Elinder Group(1) in this issue of Acta Physiologica reveals novel pharmacological agents and principles that could be the basis for more effective antiarrhythmic therapies for AF...
July 18, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28718992/melatonin-impedes-tet1-dependent-mglur5-promoter-demethylation-to-relieve-pain
#6
Ming-Chun Hsieh, Yu-Cheng Ho, Cheng-Yuan Lai, Dylan Chou, Hsueh-Hsiao Wang, Gin-Den Chen, Tzer-Bin Lin, Hsien-Yu Peng
Melatonin (N-acetyl-5-methoxytryptamine)/MT2 receptor-dependent epigenetic modification represents a novel pathway in the treatment of neuropathic pain. Because spinal ten-eleven translocation methylcytosine dioxygenase 1 (Tet1)-dependent epigenetic demethylation has recently been linked to pain hypersensitivity, we hypothesized that melatonin/MT2-dependent analgesia involves spinal Tet1-dependent demethylation. Here, we showed that spinal Tet1 gene transfer by intrathecal delivery of Tet1-encoding vectors to naïve rats produced profound and long-lasting nociceptive hypersensitivity...
July 18, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28718822/a-bacterial-toxin-with-analgesic-properties-hyperpolarization-of-drg-neurons-by-mycolactone
#7
Ok-Ryul Song, Han-Byul Kim, Samuel Jouny, Isabelle Ricard, Alexandre Vandeputte, Nathalie Deboosere, Estelle Marion, Christophe J Queval, Pierre Lesport, Emmanuel Bourinet, Daniel Henrion, Seog Bae Oh, Guillaume Lebon, Guillaume Sandoz, Edouard Yeramian, Laurent Marsollier, Priscille Brodin
Mycolactone, a polyketide molecule produced by Mycobacterium ulcerans, is the etiological agent of Buruli ulcer. This lipid toxin is endowed with pleiotropic effects, presents cytotoxic effects at high doses, and notably plays a pivotal role in host response upon colonization by the bacillus. Most remarkably, mycolactone displays intriguing analgesic capabilities: the toxin suppresses or alleviates the pain of the skin lesions it inflicts. We demonstrated that the analgesic capability of mycolactone was not attributable to nerve damage, but instead resulted from the triggering of a cellular pathway targeting AT₂ receptors (angiotensin II type 2 receptors; AT₂R), and leading to potassium-dependent hyperpolarization...
July 18, 2017: Toxins
https://www.readbyqxmd.com/read/28718219/barriers-to-glaucoma-case-finding-as-perceived-by-optometrists-in-ireland
#8
Catriona Barrett, Colm O'Brien, John S Butler, James Loughman
BACKGROUND: This research was designed to provide an in-depth exploration of the perceptions of optometrists relating to the challenges of glaucoma case finding in the Irish health-care system. METHODS: A survey was developed, piloted and distributed for anonymous completion by optometrists registered to practise in Ireland. The survey included 10 five-level Likert items exploring potential barriers to glaucoma detection and a free-text box for participants to comment more broadly...
July 17, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28717997/an-enhanced-sensitivity-methyl-1-h-triple-quantum-pulse-scheme-for-measuring-diffusion-constants-of-macromolecules
#9
Rui Huang, Jacob P Brady, Ashok Sekhar, Tairan Yuwen, Lewis E Kay
We present a pulse scheme that exploits methyl (1)H triple-quantum (TQ) coherences for the measurement of diffusion rates of slowly diffusing molecules in solution. It is based on the well-known stimulated echo experiment, with encoding and decoding of TQ coherences. The size of quantifiable diffusion coefficients is thus lowered by an order of magnitude with respect to single-quantum (SQ) approaches. Notably, the sensitivity of the scheme is high, approximately ¾ that of the corresponding single quantum experiment, neglecting relaxation losses, and on the order of a factor of 4 more sensitive than a previously published sequence for AX3 spin systems (Zheng et al...
July 17, 2017: Journal of Biomolecular NMR
https://www.readbyqxmd.com/read/28717389/sexual-selection-reinforces-a-higher-flight-endurance-in-urban-damselflies
#10
Nedim Tüzün, Lin Op de Beeck, Robby Stoks
Urbanization is among the most important and globally rapidly increasing anthropogenic processes and is known to drive rapid evolution. Habitats in urbanized areas typically consist of small, fragmented and isolated patches, which are expected to select for a better locomotor performance, along with its underlying morphological traits. This, in turn, is expected to cause differentiation in selection regimes, as populations with different frequency distributions for a given trait will span different parts of the species' fitness function...
August 2017: Evolutionary Applications
https://www.readbyqxmd.com/read/28717362/treatment-of-advanced-hepatocellular-carcinoma-after-failure-of-sorafenib-treatment-subsequent-or-additional-treatment-interventions-contribute-to-prolonged-survival-postprogression
#11
Masaaki Kondo, Kazushi Numata, Koji Hara, Akito Nozaki, Hiroyuki Fukuda, Makoto Chuma, Shin Maeda, Katsuaki Tanaka
BACKGROUND: Sorafenib is a first-line treatment option for advanced hepatocellular carcinoma (HCC) patients; however, survival predictors upon progression have not been well characterized. In the present study, we aimed to show the efficacy of multidisciplinary therapy for patients who had failed to respond to sorafenib treatment. METHODS: Among 146 BCLC stage B or C HCC patients treated with sorafenib monotherapy between July 2009 and August 2014, the first radiological progression according to the modified RECIST was identified in 71 patients; factors predicting overall survival (OS) and survival postprogression (SPP) were analyzed in these patients...
2017: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/28717243/the-long-non-coding-rna-loc441204-enhances-cell-growth-in-human-glioma
#12
Tzu-Kang Lin, Chang-Nen Chang, Cheng-Shian Tsai, Yin-Cheng Huang, Yu-Jen Lu, Wei-Jan Chen, Yang-Hsiang Lin, I-Hsiao Chung, Kwang-Huei Lin
Glioma is the most common and aggressive type of brain tumor. While long non-coding RNAs (lncRNAs) are clearly more abundant in human brain than protein-coding genes, the specific roles of lncRNAs and mechanisms underlying their dysregulation in glioma remain unclear. Here, we focused on lncRNAs that are differentially expressed in brain tumor and their potential biological functions. LOC441204, a novel non-coding RNA gene displaying high expression in clinical specimens of brain tumor and significant upregulation in glioma cell lines in microarray analyses, was selected for further study...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28717191/mln4924-pevonedistat-a-protein-neddylation-inhibitor-suppresses-proliferation-and-migration-of-human-clear-cell-renal-cell-carcinoma
#13
Shuai Tong, Yang Si, Hefen Yu, Lingqiang Zhang, Ping Xie, Wenguo Jiang
Neddylation is a post-translational protein modification associated with cancer development. MLN4924 is a neddylation inhibitor currently under investigation in multiple phase I studies on various malignancies, and its clincal name is Pevonedistat. It has been documented that MLN4924 blocks Cullins neddylation and inactivates CRLs and, in turn, triggers cell-cycle arrest, apoptosis, senescence and autophagy in many cancer cells. In this study, we investigated the anti-tumor effect of MLN4924 in human clear cell renal carcinoma (ccRCC)...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28717165/fabricating-fast-triggered-electro-active-shape-memory-graphite-silver-nanowires-epoxy-resin-composite-from-polymer-template
#14
Jie Zhou, Hua Li, Ran Tian, Roberto Dugnani, Huiyuan Lu, Yujie Chen, Yiping Guo, Huanan Duan, Hezhou Liu
In recent years shape-memory polymers have been under intense investigation due to their unique mechanical, thermal, and electrical properties that could potentially make them extremely valuable in numerous engineering applications. In this manuscript, we report a polymer-template-assisted assembly manufacturing strategy used to fabricate graphite/silver nanowires/epoxy resin (PGSE) composite. In the proposed method, the porous polymer foams work as the skeleton by forming three-dimensional graphite structure, whereas the silver nanowires act as the continuous conductive network...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28717072/the-relationship-of-bone-mineral-density-in-men-with-chronic-obstructive-pulmonary-disease-classified-according-to-the-global-initiative-for-chronic-obstructive-lung-disease-gold-combined-chronic-obstructive-pulmonary-disease-copd-assessment-system
#15
Yoriko Sakurai-Iesato, Naoko Kawata, Yuji Tada, Ken Iesato, Yukiko Matsuura, Misuzu Yahaba, Toshio Suzuki, Jun Ikari, Noriyuki Yanagawa, Yasunori Kasahara, James West, Koichiro Tatsumi
Objective Osteoporosis, which is now recognized as a major comorbidity of chronic obstructive pulmonary disease (COPD), must be diagnosed by appropriate methods. The aims of this study were to clarify the relationships between bone mineral density (BMD) and COPD-related clinical variables and to explore the association of BMD with the updated Global Initiative for Chronic Obstructive Lung Disease (GOLD) classification in men. Methods We enrolled 50 Japanese men with clinically stable COPD who underwent dual-energy X-ray absorptiometry (DEXA), pulmonary function testing, and computerized tomography (CT) and who had completed a questionnaire (COPD assessment test [CAT])...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28716949/biochemical-regulatory-features-of-aid-remain-conserved-from-lamprey-to-humans
#16
Emma M Quinlan, Justin J King, Chris T Amemiya, Ellen Hsu, Mani Larijani
Activation induced cytidine deaminase (AID) is a genome-mutating enzyme that initiates class switch recombination and somatic hypermutation of antibodies in jawed vertebrates. We previously described the biochemical properties of human AID and found that it is an unusual enzyme in that it exhibits binding affinities for its substrate DNA and catalytic rates several orders of magnitude higher and lower, respectively, than a typical enzyme. Recently, we solved the functional structure of AID and demonstrated that these properties are due to non-specific DNA binding on its surface, along with a catalytic pocket that predominantly assumes a closed conformation...
July 17, 2017: Molecular and Cellular Biology
https://www.readbyqxmd.com/read/28716922/local-destabilization-rigid-body-and-fuzzy-docking-facilitate-the-phosphorylation-of-the-transcription-factor-ets-1-by-the-mitogen-activated-protein-kinase-erk2
#17
Andrea Piserchio, Mangalika Warthaka, Tamer S Kaoud, Kari Callaway, Kevin N Dalby, Ranajeet Ghose
Mitogen-activated protein (MAP) kinase substrates are believed to require consensus docking motifs (D-site, F-site) to engage and facilitate efficient site-specific phosphorylation at specific serine/threonine-proline sequences by their cognate kinases. In contrast to other MAP kinase substrates, the transcription factor Ets-1 has no canonical docking motifs, yet it is efficiently phosphorylated by the MAP kinase ERK2 at a consensus threonine site (T38). Using NMR methodology, we demonstrate that this phosphorylation is enabled by a unique bipartite mode of ERK2 engagement by Ets-1 and involves two suboptimal noncanonical docking interactions instead of a single canonical docking motif...
July 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28716905/mitoneet-dependent-formation-of-intermitochondrial-junctions
#18
Alexandre Vernay, Anna Marchetti, Ayman Sabra, Tania N Jauslin, Manon Rosselin, Philipp E Scherer, Nicolas Demaurex, Lelio Orci, Pierre Cosson
MitoNEET (mNEET) is a dimeric mitochondrial outer membrane protein implicated in many facets of human pathophysiology, notably diabetes and cancer, but its molecular function remains poorly characterized. In this study, we generated and analyzed mNEET KO cells and found that in these cells the mitochondrial network was disturbed. Analysis of 3D-EM reconstructions and of thin sections revealed that genetic inactivation of mNEET did not affect the size of mitochondria but that the frequency of intermitochondrial junctions was reduced...
July 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28716741/inferring-the-shallow-phylogeny-of-true-salamanders-salamandra-by-multiple-phylogenomic-approaches
#19
Ariel Rodríguez, James D Burgon, Mariana Lyra, Iker Irisarri, Denis Baurain, Leon Blaustein, Bayram Göcmen, Sven Künzel, Barbara Mable, Arne W Nolte, Michael Veith, Sebastian Steinfartz, Kathryn R Elmer, Hervé Philippe, Miguel Vences
The rise of high-throughput sequencing techniques provides the unprecedented opportunity to analyse controversial phylogenetic relationships in great depth, but also introduce the risk of being misinterpreted by high node support values influenced by unevenly distributed missing data or unrealistic model assumptions. Here, we use three largely independent phylogenomic data sets to reconstruct the controversial phylogeny of true salamanders of the genus Salamandra. a group of amphibians providing an intriguing model to study the evolution of aposematism and viviparity...
July 14, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/28716734/crystal-structure-analysis-of-3-6-anhydro-l-galactonate-cycloisomerase-suggests-emergence-of-novel-substrate-specificity-in-the-enolase-superfamily
#20
Saeyoung Lee, Kyoung Heon Kim, Hye-Yeon Kim, In-Geol Choi
3,6-Anydro-l-galatonate cycloisomerase (ACI) catalyzes the cycloisomerization of a 3,6-anhydro-l-galactonic acid (AHGA) known as a novel metabolite in agarolytic bacteria. Here, we present 3-D structures of ACI from Vibrio sp. strain EJY3 (VejACI) in native and mutant forms at 2.2 Å and 2.6 Å resolutions, respectively. The enzyme belongs to the mandelate racemase subgroup of the enolase superfamily catalyzing common β-elimination reactions by α-carbon deprotonation of substrates. The structure of VejACI revealed a notable 20s loop region in the capping domain, which can be a highly conserved structural motif in ACI homologs of agar metabolism...
July 14, 2017: Biochemical and Biophysical Research Communications
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