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https://www.readbyqxmd.com/read/28853336/the-percutaneous-absorption-of-soman-in-a-damaged-skin-porcine-model-and-the-evaluation-of-woundstat%C3%A2-as-a-topical-decontaminant
#1
Christopher Dalton, Charlotte Hall, Helen Lydon, John Jenner, J Kevin Chipman, John S Graham, Robert P Chilcott
PURPOSE: The aim of this study was to evaluate a candidate haemostat (WoundStat™), down-selected from previous in vitro studies, for efficacy as a potential skin decontaminant against the chemical warfare agent pinacoyl methylfluorophosphonate (Soman, GD) using an in vivo pig model. MATERIALS AND METHODS: An area of approximately 3 cm(2) was dermatomed from the dorsal ear skin to a nominal depth of 100 µm. A discrete droplet of (14)C-GD (300 µg kg(-1)) was applied directly onto the surface of the damaged skin at the centre of the dosing site...
August 30, 2017: Cutaneous and Ocular Toxicology
https://www.readbyqxmd.com/read/28838362/improving-the-appropriate-use-of-transthoracic-echocardiography-the-echo-wisely-trial
#2
RANDOMIZED CONTROLLED TRIAL
R Sacha Bhatia, Noah M Ivers, X Cindy Yin, Dorothy Myers, Gillian C Nesbitt, Jeremy Edwards, Kibar Yared, Rishi K Wadhera, Justina C Wu, Aaron P Kithcart, Brian M Wong, Mark S Hansen, Adina S Weinerman, Steven Shadowitz, Debra Elman, Michael E Farkouh, Paaladinesh Thavendiranathan, Jacob A Udell, Amer M Johri, Chi-Ming Chow, Judith Hall, Zachary Bouck, Ashley Cohen, Kevin E Thorpe, Harry Rakowski, Michael H Picard, Rory B Weiner
BACKGROUND: Appropriate use criteria (AUC) have defined transthoracic echocardiogram (TTE) indications for which there is a clear lack of benefit as rarely appropriate (rA). OBJECTIVES: This study sought to investigate the impact of an AUC-based educational intervention on outpatient TTE ordering by cardiologists and primary care providers. METHODS: The authors conducted a prospective, investigator-blinded, multicenter, randomized controlled trial of an AUC-based educational intervention aimed at reducing rA outpatient TTEs...
August 29, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28821240/avbd1-nucleotide-polymorphisms-peptide-antimicrobial-activities-and-microbial-colonisation-of-the-broiler-chicken-gut
#3
Kevin Cadwell, Sherko S Niranji, Vanessa L Armstrong, Catherine A Mowbray, Richard Bailey, Kellie A Watson, Judith Hall
BACKGROUND: The importance of poultry as a global source of protein underpins the chicken genome and associated SNP data as key tools in selecting and breeding healthy robust birds with improved disease resistance. SNPs affecting host peptides involved in the innate defences tend to be rare, but three non-synonymous SNPs in the avian β-defensin (AvBD1) gene encoding the variant peptides NYH, SSY and NYY were identified that segregated specifically to three lines of commercial broiler chickens Line X (LX), Line Y(LY) and Line Z...
August 18, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28814343/stable-inheritance-of-dna-methylation-allows-creation-of-epigenotype-maps-and-the-study-of-epiallele-inheritance-patterns-in-the-absence-of-genetic-variation
#4
Brigitte T Hofmeister, Kevin Lee, Nicholas A Rohr, David W Hall, Robert J Schmitz
BACKGROUND: Differences in DNA methylation can arise as epialleles, which are loci that differ in chromatin state and are inherited over generations. Epialleles offer an additional source of variation that can affect phenotypic diversity beyond changes to nucleotide sequence. Previous research has looked at the rate at which spontaneous epialleles arise but it is currently unknown how they are maintained across generations. RESULTS: We used two Arabidopsis thaliana mutation accumulation (MA) lines and determined that over 99...
August 16, 2017: Genome Biology
https://www.readbyqxmd.com/read/28802046/replication-transcription-conflicts-generate-r-loops-that-orchestrate-bacterial-stress-survival-and-pathogenesis
#5
Kevin S Lang, Ashley N Hall, Christopher N Merrikh, Mark Ragheb, Hannah Tabakh, Alex J Pollock, Joshua J Woodward, Julia E Dreifus, Houra Merrikh
Replication-transcription collisions shape genomes, influence evolution, and promote genetic diseases. Although unclear why, head-on transcription (lagging strand genes) is especially disruptive to replication and promotes genomic instability. Here, we find that head-on collisions promote R-loop formation in Bacillus subtilis. We show that pervasive R-loop formation at head-on collision regions completely blocks replication, elevates mutagenesis, and inhibits gene expression. Accordingly, the activity of the R-loop processing enzyme RNase HIII at collision regions is crucial for stress survival in B...
August 10, 2017: Cell
https://www.readbyqxmd.com/read/28783044/phenotypic-and-pharmacogenetic-evaluation-of-patients-with-thiazide-induced-hyponatremia
#6
James S Ware, Louise V Wain, Sarath K Channavajjhala, Victoria E Jackson, Elizabeth Edwards, Run Lu, Keith Siew, Wenjing Jia, Nick Shrine, Sue Kinnear, Mahli Jalland, Amanda P Henry, Jenny Clayton, Kevin M O'Shaughnessy, Martin D Tobin, Victor L Schuster, Stuart Cook, Ian P Hall, Mark Glover
Thiazide diuretics are among the most widely used treatments for hypertension, but thiazide-induced hyponatremia (TIH), a clinically significant adverse effect, is poorly understood. Here, we have studied the phenotypic and genetic characteristics of patients hospitalized with TIH. In a cohort of 109 TIH patients, those with severe TIH displayed an extended phenotype of intravascular volume expansion, increased free water reabsorption, urinary prostaglandin E2 excretion, and reduced excretion of serum chloride, magnesium, zinc, and antidiuretic hormone...
September 1, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28717194/rapid-production-of-human-liver-scaffolds-for-functional-tissue-engineering-by-high-shear-stress-oscillation-decellularization
#7
Giuseppe Mazza, Walid Al-Akkad, Andrea Telese, Lisa Longato, Luca Urbani, Benjamin Robinson, Andrew Hall, Kenny Kong, Luca Frenguelli, Giusi Marrone, Oliver Willacy, Mohsen Shaeri, Alan Burns, Massimo Malago, Janet Gilbertson, Nigel Rendell, Kevin Moore, David Hughes, Ioan Notingher, Gavin Jell, Armando Del Rio Hernandez, Paolo De Coppi, Krista Rombouts, Massimo Pinzani
The development of human liver scaffolds retaining their 3-dimensional structure and extra-cellular matrix (ECM) composition is essential for the advancement of liver tissue engineering. We report the design and validation of a new methodology for the rapid and accurate production of human acellular liver tissue cubes (ALTCs) using normal liver tissue unsuitable for transplantation. The application of high shear stress is a key methodological determinant accelerating the process of tissue decellularization while maintaining ECM protein composition, 3D-architecture and physico-chemical properties of the native tissue...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28714849/proposal-for-a-unified-classification-system-and-nomenclature-of-lagoviruses
#8
Jacques Le Pendu, Joana Abrantes, Stéphane Bertagnoli, Jean-Sébastien Guitton, Ghislaine Le Gall-Reculé, Ana Margarida Lopes, Stéphane Marchandeau, Fernando Alda, Tereza Almeida, Alves Paulo Célio, Juan Bárcena, Galina Burmakina, Esther Blanco, Carlos Calvete, Patrizia Cavadini, Brian Cooke, Kevin Dalton, Miguel Delibes Mateos, Wieslaw Deptula, John Sebastian Eden, Fang Wang, Catarina C Ferreira, Paula Ferreira, Pilar Foronda, David Gonçalves, Dolores Gavier-Widén, Robin Hall, Beata Hukowska-Szematowicz, Peter Kerr, John Kovaliski, Antonio Lavazza, Jackie Mahar, Alexander Malogolovkin, Raquel M Marques, Sara Marques, Aaron Martin-Alonso, Pedro Monterroso, Sacramento Moreno, Greg Mutze, Aleksija Neimanis, Paulina Niedzwiedzka-Rystwej, David Peacock, Francisco Parra, Mara Rocchi, Carlos Rouco, Nathalie Ruvoën-Clouet, Eliane Silva, Diogo Silvério, Tanja Strive, Gertrudes Thompson, Beata Tokarz-Deptula, Pedro Esteves
Lagoviruses belong to the Caliciviridae family. They were first recognized as highly pathogenic viruses of the European rabbit (Oryctolagus cuniculus) and European brown hare (Lepus europaeus) that emerged in the 1970-1980s, namely, rabbit haemorrhagic disease virus (RHDV) and European brown hare syndrome virus (EBHSV), according to the host species from which they had been first detected. However, the diversity of lagoviruses has recently expanded to include new related viruses with varying pathogenicity, geographic distribution and host ranges...
July 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28627929/design-of-the-hptn-065-tlc-plus-study-a-study-to-evaluate-the-feasibility-of-an-enhanced-test-link-to-care-plus-treat-approach-for-hiv-prevention-in-the-united-states
#9
Theresa Gamble, Bernard Branson, Deborah Donnell, H Irene Hall, Georgette King, Blayne Cutler, Shannon Hader, David Burns, Jason Leider, Angela Fulwood Wood, Kevin G Volpp, Kate Buchacz, Wafaa M El-Sadr
Background/Aims HIV continues to be a major public health threat in the United States, and mathematical modeling has demonstrated that the universal effective use of antiretroviral therapy among all HIV-positive individuals (i.e. the "test and treat" approach) has the potential to control HIV. However, to accomplish this, all the steps that define the HIV care continuum must be achieved at high levels, including HIV testing and diagnosis, linkage to and retention in clinical care, antiretroviral medication initiation, and adherence to achieve and maintain viral suppression...
August 2017: Clinical Trials: Journal of the Society for Clinical Trials
https://www.readbyqxmd.com/read/28601820/axillary-versus-innominate-artery-cannulation-for-antegrade-cerebral-perfusion-in-aortic-surgery-design-of-the-aortic-surgery-cerebral-protection-evaluation-ace-cardiolink-3-randomised-trial
#10
Vinay Garg, Mark D Peterson, Michael Wa Chu, Maral Ouzounian, Roderick Gg MacArthur, John Bozinovski, Ismail El-Hamamsy, F Victor Chu, Ankit Garg, Judith Hall, Kevin E Thorpe, Natasha Dhingra, Hwee Teoh, Thomas R Marotta, David A Latter, Adrian Quan, Muhammad Mamdani, Peter Juni, C David Mazer, Subodh Verma
INTRODUCTION: Neurological injury remains the major cause of morbidity and mortality following open aortic arch repair. Systemic hypothermia along with antegrade cerebral perfusion (ACP) is the accepted cerebral protection approach, with axillary artery cannulation being the most common technique used to establish ACP. More recently, innominate artery cannulation has been shown to be a safe and efficacious method for establishing ACP. Inasmuch as there is a lack of high-quality data comparing axillary and innominate artery ACP, we have designed a randomised, multi-centre clinical trial to compare both cerebral perfusion strategies with regards to brain morphological injury using diffusion-weighted MRI (DW-MRI)...
June 10, 2017: BMJ Open
https://www.readbyqxmd.com/read/28589124/a-multidisciplinary-phenotyping-and-genotyping-analysis-of-a-mapping-population-enables-quality-to-be-combined-with-yield-in-rice
#11
Mariafe Calingacion, Roland Mumm, Kevin Tan, Lenie Quiatchon-Baeza, Jeanaflor C T Concepcion, Jos A Hageman, Sangeeta Prakash, Melissa Fitzgerald, Robert D Hall
In this study a mapping population (F8) of ca 200 progeny from a cross between the commercial rice varieties Apo and IR64 has been both genotyped and phenotyped. A genotyping-by-sequencing approach was first used to identify 2,681 polymorphic SNP markers which gave dense coverage of the genome with a good distribution across all 12 chromosomes. The coefficient of parentage was also low, at 0.13, confirming that the parents are genetically distant from each other. The progeny, together with both parents, were grown under irrigated and water restricted conditions in a randomised block design...
2017: Frontiers in Molecular Biosciences
https://www.readbyqxmd.com/read/28581512/structural-basis-for-the-cooperative-allosteric-activation-of-the-free-fatty-acid-receptor-gpr40
#12
Jun Lu, Noel Byrne, John Wang, Gerard Bricogne, Frank K Brown, Harry R Chobanian, Steven L Colletti, Jerry Di Salvo, Brande Thomas-Fowlkes, Yan Guo, Dawn L Hall, Jennifer Hadix, Nicholas B Hastings, Jeffrey D Hermes, Thu Ho, Andrew D Howard, Hubert Josien, Maria Kornienko, Kevin J Lumb, Michael W Miller, Sangita B Patel, Barbara Pio, Christopher W Plummer, Bradley S Sherborne, Payal Sheth, Sarah Souza, Srivanya Tummala, Clemens Vonrhein, Maria Webb, Samantha J Allen, Jennifer M Johnston, Adam B Weinglass, Sujata Sharma, Stephen M Soisson
Clinical studies indicate that partial agonists of the G-protein-coupled, free fatty acid receptor 1 GPR40 enhance glucose-dependent insulin secretion and represent a potential mechanism for the treatment of type 2 diabetes mellitus. Full allosteric agonists (AgoPAMs) of GPR40 bind to a site distinct from partial agonists and can provide additional efficacy. We report the 3.2-Å crystal structure of human GPR40 (hGPR40) in complex with both the partial agonist MK-8666 and an AgoPAM, which exposes a novel lipid-facing AgoPAM-binding pocket outside the transmembrane helical bundle...
July 2017: Nature Structural & Molecular Biology
https://www.readbyqxmd.com/read/28567699/effects-of-nalfurafine-on-the-reinforcing-thermal-antinociceptive-and-respiratory-depressant-effects-of-oxycodone-modeling-an-abuse-deterrent-opioid-analgesic-in-rats
#13
E Andrew Townsend, Jennifer E Naylor, S Stevens Negus, Shelley R Edwards, Hina N Qureshi, Hunter W McLendon, Christopher R McCurdy, Coco N Kapanda, Jussara M do Carmo, Fernanda S da Silva, John E Hall, Kenneth J Sufka, Kevin B Freeman
RATIONALE: Strategies to reduce the misuse of mu opioid agonists are critically needed. Previous work has shown that kappa opioid agonists can diminish the abuse-related effects and augment the antinociceptive effects of mu agonists. However, use of traditional kappa agonists is limited by their dysphoric side effects. OBJECTIVES: The current study examined the effects of nalfurafine, a clinically available atypical kappa agonist, on the reinforcing, thermal antinociceptive, and respiratory-depressant effects of oxycodone in male rats...
May 31, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28566364/randomised-trial-of-mitral-valve-repair-with-leaflet-resection-versus-leaflet-preservation-on-functional-mitral-stenosis-the-camra-cardiolink-2-trial
#14
Vincent Chan, Michael W A Chu, Howard Leong-Poi, David A Latter, Judith Hall, Kevin E Thorpe, Benoit E de Varennes, Adrian Quan, Wendy Tsang, Natasha Dhingra, Kibar Yared, Hwee Teoh, F Victor Chu, Kwan-Leung Chan, Thierry G Mesana, Kim A Connelly, Marc Ruel, Peter Jüni, C David Mazer, Subodh Verma
BACKGROUND: The gold-standard treatment of severe mitral regurgitation (MR) due to degenerative disease is valve repair, which is surgically performed with either a leaflet resection or leaflet preservation approach. Recent data suggest that functional mitral stenosis (MS) may occur following valve repair using a leaflet resection strategy, which adversely affects patient prognosis. A randomised comparison of these two approaches to mitral repair on functional MS has not been conducted...
May 30, 2017: BMJ Open
https://www.readbyqxmd.com/read/28549161/cigarette-smoking-cessation-intervention-for-buprenorphine-treatment-patients
#15
Sharon M Hall, Gary Humfleet, James Gasper, Kevin L Delucchi, David Hersh, Joseph Guydish
Introduction: Patients receiving Medication Assisted Therapy (MAT) for opioid use disorder have high cigarette smoking rates. Cigarette smoking interventions have had limited success. We evaluated an intervention to increase cigarette abstinence rates in patients receiving buprenorphine-assisted therapy. Methods: Cigarette smokers (N=175; 78% male; 69% Caucasian; 20% Hispanic), recruited from a buprenorphine clinic were randomly assigned to either an extended innovative system intervention (E-ISI) or to Standard Treatment Control (STC)...
May 26, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28479390/arsenic-metabolism-and-one-carbon-metabolism-at-low-moderate-arsenic-exposure-evidence-from-the-strong-heart-study
#16
Miranda Jones Spratlen, Mary V Gamble, Maria Grau-Perez, Chin-Chi Kuo, Lyle G Best, Joseph Yracheta, Kevin Francesconi, Walter Goessler, Yasmin Mossavar-Rahmani, Meghan Hall, Jason G Umans, Amanda Fretts, Ana Navas-Acien
B-vitamins involved in one-carbon metabolism (OCM) can affect arsenic metabolism efficiency in highly arsenic exposed, undernourished populations. We evaluated whether dietary intake of OCM nutrients (including vitamins B2, B6, folate (B9), and B12) was associated with arsenic metabolism in a more nourished population exposed to lower arsenic than previously studied. Dietary intake of OCM nutrients and urine arsenic was evaluated in 405 participants from the Strong Heart Study. Arsenic exposure was measured as the sum of iAs, monomethylarsonate (MMA) and dimethylarsenate (DMA) in urine...
July 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28450452/nanonet-force-microscopy-for-measuring-forces-in-single-smooth-muscle-cells-of-the-human-aorta
#17
Alexander Hall, Patrick Chan, Kevin Sheets, Matthew Apperson, Christopher Delaughter, Thomas G Gleason, Julie A Phillippi, Amrinder Nain
A number of innovative methods exist to measure cell-matrix adhesive forces, but they have yet to accurately describe and quantify the intricate interplay of a cell and its fibrous extracellular matrix (ECM). In cardiovascular pathologies, such as aortic aneurysm, new knowledge on the involvement of cell-matrix forces could lead to elucidation of disease mechanisms. To better understand this dynamics, we measured primary human aortic single smooth muscle cell (SMC) forces using nanonet force microscopy in both inside-out (I-O intrinsic contractility) and outside-in (O-I external perturbation) modes...
July 7, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28408648/azithromycin-causes-a-novel-proarrhythmic-syndrome
#18
Zhenjiang Yang, Joseph K Prinsen, Kevin R Bersell, Wangzhen Shen, Liudmila Yermalitskaya, Tatiana Sidorova, Paula B Luis, Lynn Hall, Wei Zhang, Liping Du, Ginger Milne, Patrick Tucker, Alfred L George, Courtney M Campbell, Robert A Pickett, Christian M Shaffer, Nagesh Chopra, Tao Yang, Bjorn C Knollmann, Dan M Roden, Katherine T Murray
BACKGROUND: The widely used macrolide antibiotic azithromycin increases risk of cardiovascular and sudden cardiac death, although the underlying mechanisms are unclear. Case reports, including the one we document here, demonstrate that azithromycin can cause rapid, polymorphic ventricular tachycardia in the absence of QT prolongation, indicating a novel proarrhythmic syndrome. We investigated the electrophysiological effects of azithromycin in vivo and in vitro using mice, cardiomyocytes, and human ion channels heterologously expressed in human embryonic kidney (HEK 293) and Chinese hamster ovary (CHO) cells...
April 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28390057/mechanical-properties-of-6-finger-trap-suture-techniques
#19
Naomi F Earley, Lee B Meakin, Kevin J Parsons, John Tarlton, Jon L Hall
OBJECTIVE: To identify the most common methods used by surgeons to place finger-trap sutures (FTS), and determine their influence on the biomechanical properties of constructs. STUDY DESIGN: Questionnaire and experimental study. METHODS: Six commonly used FTS methods (A-F) were identified from literature review and questionnaire. Constructs made with 3-metric nylon suture and 18-French polyurethane esophagostomy tubing were tested in axial loading to failure...
April 8, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28379940/the-crown-of-thorns-starfish-genome-as-a-guide-for-biocontrol-of-this-coral-reef-pest
#20
Michael R Hall, Kevin M Kocot, Kenneth W Baughman, Selene L Fernandez-Valverde, Marie E A Gauthier, William L Hatleberg, Arunkumar Krishnan, Carmel McDougall, Cherie A Motti, Eiichi Shoguchi, Tianfang Wang, Xueyan Xiang, Min Zhao, Utpal Bose, Chuya Shinzato, Kanako Hisata, Manabu Fujie, Miyuki Kanda, Scott F Cummins, Noriyuki Satoh, Sandie M Degnan, Bernard M Degnan
The crown-of-thorns starfish (COTS, the Acanthaster planci species group) is a highly fecund predator of reef-building corals throughout the Indo-Pacific region. COTS population outbreaks cause substantial loss of coral cover, diminishing the integrity and resilience of reef ecosystems. Here we sequenced genomes of COTS from the Great Barrier Reef, Australia and Okinawa, Japan to identify gene products that underlie species-specific communication and could potentially be used in biocontrol strategies. We focused on water-borne chemical plumes released from aggregating COTS, which make the normally sedentary starfish become highly active...
April 5, 2017: Nature
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