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https://www.readbyqxmd.com/read/28866976/a-cross-sectional-survey-of-australian-and-new-zealand-public-opinion-on-methods-totriage-intensive-care-patients-in-an-influenza-pandemic
#1
Winston Cheung, John Myburgh, Shay McGuinness, Debra Chalmers, Rachael Parke, Fiona Blyth, Ian Seppelt, Michael Parr, Claire Hooker, Nikki Blackwell, Shannon DeMonte, Kalpesh Gandhi, Mark Kol, Ian Kerridge, Priya Nair, Nicholas M Saunders, Manoj K Saxena, Govindasamy Thanakrishnan, Vasi Naganathan
BACKGROUND AND OBJECTIVE: An influenza pandemic has the potential to overwhelm intensive care resources, but the views of the general public on how resources should be allocated in such a scenario were unknown. We aimed to determine Australian and New Zealand public opinion on how intensive care unit beds should be allocated during an influenza pandemic. DESIGN, SETTING, AND PARTICIPANTS: A postal questionnaire was sent to 4000 randomly selected registered voters; 2000 people each from the Australian Electoral Commission and New Zealand Electoral Commission rolls...
September 2017: Critical Care and Resuscitation: Journal of the Australasian Academy of Critical Care Medicine
https://www.readbyqxmd.com/read/28838463/beware-cold-agglutinins-in-organ-donors-ex%C3%A2-vivo-lung-perfusion-from-an-uncontrolled-donation-after-circulatory-determination-of-death-donor-with-a-cold-agglutinin-a-case-report
#2
A Venkataraman, J W Blackwell, W K Funkhouser, K R Birchard, S E Beamer, W T Simmons, S H Randell, T M Egan
BACKGROUND: We began to recover lungs from uncontrolled donation after circulatory determination of death to assess for transplant suitability by means of ex vivo lung perfusion (EVLP) and computerized tomographic (CT) scan. Our first case had a cold agglutinin with an interesting outcome. CASE REPORT: A 60-year-old man collapsed at home and was pronounced dead by Emergency Medical Services personnel. Next-of-kin consented to lung retrieval, and the decedent was ventilated and transported...
September 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28835384/ezh2-inhibition-by-tazemetostat-results-in-altered-dependency-on-b-cell-activation-signaling%C3%A2-in-dlbcl
#3
Dorothy Brach, Danielle Johnston-Blackwell, Allison Drew, Trupti Lingaraj, Vinny Motwani, Natalie M Warholic, Igor Feldman, Christopher Plescia, Jesse J Smith, Robert A Copeland, Heike Keilhack, Elayne Chan-Penebre, Sarah K Knutson, Scott A Ribich, Alejandra Raimondi, Michael J Thomenius
The EZH2 small molecule inhibitor tazemetostat (EPZ-6438) is currently being evaluated in phase II clinical trials for the treatment of non-Hodgkin's Lymphoma (NHL).  We have previously shown that EZH2 inhibitors display an anti-proliferative effect in multiple pre-clinical models of NHL, and that models bearing gain-of-function mutations in EZH2 were consistently more sensitive to EZH2 inhibition than lymphomas with wild-type (WT) EZH2 Here, we demonstrate that cell lines bearing EZH2 mutations show a cytotoxic response, while cell lines with WT-EZH2 show a cytostatic response and only tumor growth inhibition without regression in a xenograft model...
August 23, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28828144/assessment-of-radiometer-calibration-with-gps-radio-occultation-for-the-mirata-cubesat-mission
#4
Anne D Marinan, Kerri L Cahoy, Rebecca L Bishop, Susan S Lui, James R Bardeen, Tamitha Mulligan, William J Blackwell, R Vincent Leslie, Idahosa Osaretin, Michael Shields
The Microwave Radiometer Technology Acceleration (MiRaTA) is a 3U CubeSat mission sponsored by the NASA Earth Science Technology Office (ESTO). The science payload on MiRaTA consists of a tri-band microwave radiometer and Global Positioning System (GPS) radio occultation (GPSRO) sensor. The microwave radiometer takes measurements of all-weather temperature (V-band, 50-57 GHz), water vapor (G-band, 175-191 GHz), and cloud ice (G-band, 205 GHz) to provide observations used to improve weather forecasting. The Aerospace Corporation's GPSRO experiment, called the Compact TEC (Total Electron Content) and Atmospheric GPS Sensor (CTAGS), measures profiles of temperature and pressure in the upper troposphere/lower stratosphere (∼20 km) and electron density in the ionosphere (over 100 km)...
December 2016: IEEE J Sel Top Appl Earth Obs Remote Sens
https://www.readbyqxmd.com/read/28679771/neratinib-efficacy-and-circulating-tumor-dna-detection-of-her2-mutations-in-her2-nonamplified-metastatic-breast-cancer
#5
Cynthia X Ma, Ron Bose, Feng Gao, Rachel A Freedman, Melinda L Telli, Gretchen Kimmick, Eric Winer, Michael Naughton, Matthew P Goetz, Christy Russell, Debu Tripathy, Melody Cobleigh, Andres Forero, Timothy J Pluard, Carey Anders, Polly Ann Niravath, Shana Thomas, Jill Anderson, Caroline Bumb, Kimberly C Banks, Richard B Lanman, Richard Bryce, Alshad S Lalani, John Pfeifer, Daniel F Hayes, Mark Pegram, Kimberly Blackwell, Philippe L Bedard, Hussam Al-Kateb, Matthew J C Ellis
Purpose: Based on promising preclinical data, we conducted a single-arm phase II trial to assess the clinical benefit rate (CBR) of neratinib, defined as complete/partial response (CR/PR) or stable disease (SD) ≥24 weeks, in HER2(mut) nonamplified metastatic breast cancer (MBC). Secondary endpoints included progression-free survival (PFS), toxicity, and circulating tumor DNA (ctDNA) HER2(mut) detection.Experimental Design: Tumor tissue positive for HER2(mut) was required for eligibility. Neratinib was administered 240 mg daily with prophylactic loperamide...
July 5, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28637287/pooled-analysis-of-two-randomized-double-blind-trials-comparing-proposed-biosimilar-la-ep2006-with-reference-pegfilgrastim-in-breast-cancer
#6
K Blackwell, P Gascon, C M Jones, A Nixon, A Krendyukov, R Nakov, Y Li, N Harbeck
Background: Following the functional and physicochemical characterization of a proposed biosimilar, comparative clinical studies help to confirm biosimilarity by demonstrating similar safety and efficacy to the reference product in a sensitive patient population. Patients and methods: LA-EP2006 is a proposed biosimilar that has been developed for pegfilgrastim, a long-acting form of granulocyte colony-stimulating factor for the prevention of neutropenia. The current analysis reports data pooled from two independent, multinational, prospective, randomized, controlled, double-blind phase III studies of similar design comparing the safety and efficacy of reference pegfilgrastim with LA-EP2006 in patients with breast cancer receiving myelotoxic (neo)adjuvant TAC (docetaxel, doxorubicin, and cyclophosphamide) chemotherapy and requiring granulocyte colony-stimulating factor...
September 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28472527/biopsy-of-enlarging-lesions-after-stereotactic-radiosurgery-for-brain-metastases-frequently-reveals-radiation-necrosis
#7
Jessica L Narloch, S Harrison Farber, Sarah Sammons, Frances McSherry, James E Herndon, Jenny K Hoang, Fang-Fang Yin, John H Sampson, Peter E Fecci, Kimberly L Blackwell, John P Kirkpatrick, Grace J Kim
Background: Stereotactic radiosurgery (SRS) offers excellent local control for brain metastases (BM) with low rates of toxicity. Radiation necrosis (RN) may occur after treatment and is challenging to distinguish from local recurrence (LR). We evaluated enlarging brain lesions following SRS that were subsequently biopsied to differentiate RN versus LR. Methods: This study reviewed patients receiving SRS for BM between 2008 and 2012 who underwent a biopsy for suspicion of RN versus LR on MRI...
October 1, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28414520/rare-genetic-variants-in-parn-are-associated-with-pulmonary-fibrosis-in-families
#8
Jonathan A Kropski, Sara Reiss, Cheryl Markin, Kevin K Brown, David A Schwartz, Marvin I Schwarz, James E Loyd, John A Phillips Iii, Timothy S Blackwell, Joy D Cogan
No abstract text is available yet for this article.
April 17, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28341696/a-low-frequency-inactivating-akt2-variant-enriched-in-the-finnish-population-is-associated-with-fasting-insulin-levels-and-type-2-diabetes-risk
#9
Alisa Manning, Heather M Highland, Jessica Gasser, Xueling Sim, Taru Tukiainen, Pierre Fontanillas, Niels Grarup, Manuel A Rivas, Anubha Mahajan, Adam E Locke, Pablo Cingolani, Tune H Pers, Ana Viñuela, Andrew A Brown, Ying Wu, Jason Flannick, Christian Fuchsberger, Eric R Gamazon, Kyle J Gaulton, Hae Kyung Im, Tanya M Teslovich, Thomas W Blackwell, Jette Bork-Jensen, Noël P Burtt, Yuhui Chen, Todd Green, Christopher Hartl, Hyun Min Kang, Ashish Kumar, Claes Ladenvall, Clement Ma, Loukas Moutsianas, Richard D Pearson, John R B Perry, N William Rayner, Neil R Robertson, Laura J Scott, Martijn van de Bunt, Johan G Eriksson, Antti Jula, Seppo Koskinen, Terho Lehtimäki, Aarno Palotie, Olli T Raitakari, Suzanne B R Jacobs, Jennifer Wessel, Audrey Y Chu, Robert A Scott, Mark O Goodarzi, Christine Blancher, Gemma Buck, David Buck, Peter S Chines, Stacey Gabriel, Anette P Gjesing, Christopher J Groves, Mette Hollensted, Jeroen R Huyghe, Anne U Jackson, Goo Jun, Johanne Marie Justesen, Massimo Mangino, Jacquelyn Murphy, Matt Neville, Robert Onofrio, Kerrin S Small, Heather M Stringham, Joseph Trakalo, Eric Banks, Jason Carey, Mauricio O Carneiro, Mark DePristo, Yossi Farjoun, Timothy Fennell, Jacqueline I Goldstein, George Grant, Martin Hrabé de Angelis, Jared Maguire, Benjamin M Neale, Ryan Poplin, Shaun Purcell, Thomas Schwarzmayr, Khalid Shakir, Joshua D Smith, Tim M Strom, Thomas Wieland, Jaana Lindstrom, Ivan Brandslund, Cramer Christensen, Gabriela L Surdulescu, Timo A Lakka, Alex S F Doney, Peter Nilsson, Nicholas J Wareham, Claudia Langenberg, Tibor V Varga, Paul W Franks, Olov Rolandsson, Anders H Rosengren, Vidya S Farook, Farook Thameem, Sobha Puppala, Satish Kumar, Donna M Lehman, Christopher P Jenkinson, Joanne E Curran, Daniel Esten Hale, Sharon P Fowler, Rector Arya, Ralph A DeFronzo, Hanna E Abboud, Ann-Christine Syvänen, Pamela J Hicks, Nicholette D Palmer, Maggie C Y Ng, Donald W Bowden, Barry I Freedman, Tõnu Esko, Reedik Mägi, Lili Milani, Evelin Mihailov, Andres Metspalu, Narisu Narisu, Leena Kinnunen, Lori L Bonnycastle, Amy Swift, Dorota Pasko, Andrew R Wood, João Fadista, Toni I Pollin, Nir Barzilai, Gil Atzmon, Benjamin Glaser, Barbara Thorand, Konstantin Strauch, Annette Peters, Michael Roden, Martina Müller-Nurasyid, Liming Liang, Jennifer Kriebel, Thomas Illig, Harald Grallert, Christian Gieger, Christa Meisinger, Lars Lannfelt, Solomon K Musani, Michael Griswold, Herman A Taylor, Gregory Wilson, Adolfo Correa, Heikki Oksa, William R Scott, Uzma Afzal, Sian-Tsung Tan, Marie Loh, John C Chambers, Jobanpreet Sehmi, Jaspal Singh Kooner, Benjamin Lehne, Yoon Shin Cho, Jong-Young Lee, Bok-Ghee Han, Annemari Käräjämäki, Qibin Qi, Lu Qi, Jinyan Huang, Frank B Hu, Olle Melander, Marju Orho-Melander, Jennifer E Below, David Aguilar, Tien Yin Wong, Jianjun Liu, Chiea-Chuen Khor, Kee Seng Chia, Wei Yen Lim, Ching-Yu Cheng, Edmund Chan, E Shyong Tai, Tin Aung, Allan Linneberg, Bo Isomaa, Thomas Meitinger, Tiinamaija Tuomi, Liisa Hakaste, Jasmina Kravic, Marit E Jørgensen, Torsten Lauritzen, Panos Deloukas, Kathleen E Stirrups, Katharine R Owen, Andrew J Farmer, Timothy M Frayling, Stephen P O'Rahilly, Mark Walker, Jonathan C Levy, Dylan Hodgkiss, Andrew T Hattersley, Teemu Kuulasmaa, Alena Stančáková, Inês Barroso, Dwaipayan Bharadwaj, Juliana Chan, Giriraj R Chandak, Mark J Daly, Peter J Donnelly, Shah B Ebrahim, Paul Elliott, Tasha Fingerlin, Philippe Froguel, Cheng Hu, Weiping Jia, Ronald C W Ma, Gilean McVean, Taesung Park, Dorairaj Prabhakaran, Manjinder Sandhu, James Scott, Rob Sladek, Nikhil Tandon, Yik Ying Teo, Eleftheria Zeggini, Richard M Watanabe, Heikki A Koistinen, Y Antero Kesaniemi, Matti Uusitupa, Timothy D Spector, Veikko Salomaa, Rainer Rauramaa, Colin N A Palmer, Inga Prokopenko, Andrew D Morris, Richard N Bergman, Francis S Collins, Lars Lind, Erik Ingelsson, Jaakko Tuomilehto, Fredrik Karpe, Leif Groop, Torben Jørgensen, Torben Hansen, Oluf Pedersen, Johanna Kuusisto, Gonçalo Abecasis, Graeme I Bell, John Blangero, Nancy J Cox, Ravindranath Duggirala, Mark Seielstad, James G Wilson, Josee Dupuis, Samuli Ripatti, Craig L Hanis, Jose C Florez, Karen L Mohlke, James B Meigs, Markku Laakso, Andrew P Morris, Michael Boehnke, David Altshuler, Mark I McCarthy, Anna L Gloyn, Cecilia M Lindgren
To identify novel coding association signals and facilitate characterization of mechanisms influencing glycemic traits and type 2 diabetes risk, we analyzed 109,215 variants derived from exome array genotyping together with an additional 390,225 variants from exome sequence in up to 39,339 normoglycemic individuals from five ancestry groups. We identified a novel association between the coding variant (p.Pro50Thr) in AKT2 and fasting plasma insulin (FI), a gene in which rare fully penetrant mutations are causal for monogenic glycemic disorders...
July 2017: Diabetes
https://www.readbyqxmd.com/read/28301453/investigation-of-salmonella-enteritidis-outbreak-associated-with-truffle-oil-district-of-columbia-2015
#10
S Janet Kuramoto-Crawford, Sasha McGee, Keith Li, Andrew K Hennenfent, Kossia Dassie, Jhetari T Carney, Arian Gibson, Ivory Cooper, Morris Blaylock, Reginald Blackwell, Angela Fields, John Davies-Cole
On September 8, 2015, the District of Columbia Department of Health (DCDOH) received a call from a person who reported experiencing gastrointestinal illness after eating at a District of Columbia (DC) restaurant with multiple locations throughout the United States (restaurant A). Later the same day, a local emergency department notified DCDOH to report four persons with gastrointestinal illness, all of whom had eaten at restaurant A during August 30-September 5. Two patients had laboratory-confirmed Salmonella group D by stool culture...
March 17, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28226201/genomewide-association-study-of-alcohol-dependence-identifies-risk-loci-altering-ethanol-response-behaviors-in-model-organisms
#11
Amy E Adkins, Laura M Hack, Tim B Bigdeli, Vernell S Williamson, G Omari McMichael, Mohammed Mamdani, Alexis C Edwards, Fazil Aliev, Robin F Chan, Poonam Bhandari, Richard C Raabe, Joseph T Alaimo, GinaMari G Blackwell, Arden Moscati, Ryan S Poland, Benjamin Rood, Diana G Patterson, Dermot Walsh, John B Whitfield, Gu Zhu, Grant W Montgomery, Anjali K Henders, Nicholas G Martin, Andrew C Heath, Pamela A F Madden, Josef Frank, Monika Ridinger, Norbert Wodarz, Michael Soyka, Peter Zill, Marcus Ising, Markus M Nöthen, Falk Kiefer, Marcella Rietschel, Joel Gelernter, Richard Sherva, Ryan Koesterer, Laura Almasy, Hongyu Zhao, Henry R Kranzler, Lindsay A Farrer, Brion S Maher, Carol A Prescott, Danielle M Dick, Silviu A Bacanu, Laura D Mathies, Andrew G Davies, Vladimir I Vladimirov, Mike Grotewiel, M Scott Bowers, Jill C Bettinger, Bradley T Webb, Michael F Miles, Kenneth S Kendler, Brien P Riley
BACKGROUND: Alcohol dependence (AD) shows evidence for genetic liability, but genes influencing risk remain largely unidentified. METHODS: We conducted a genomewide association study in 706 related AD cases and 1,748 unscreened population controls from Ireland. We sought replication in 15,496 samples of European descent. We used model organisms (MOs) to assess the role of orthologous genes in ethanol (EtOH)-response behaviors. We tested 1 primate-specific gene for expression differences in case/control postmortem brain tissue...
May 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28175000/p245-a-systematic-review-of-outcomes-reported-in-studies-on-fistulising-perianal-crohn-s-disease
#12
K Sahnan, S O Adegbola, P J Tozer, B S R Allin, M J Lee, N Heywood, A G K McNair, A J Lobo, S R Brown, S Sebastian, R K Phillips, P F Lung, O D Faiz, S Blackwell, A Verjee, N S Fearnhead, A L Hart
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28131338/response-based-selection-of-barley-cultivars-and-legume-species-for-complementarity-root-morphology-and-exudation-in-relation-to-nutrient-source
#13
Courtney D Giles, Lawrie K Brown, Michael O Adu, Malika M Mezeli, Graeme A Sandral, Richard J Simpson, Renate Wendler, Charles A Shand, Daniel Menezes-Blackburn, Tegan Darch, Marc I Stutter, David G Lumsdon, Hao Zhang, Martin S A Blackwell, Catherine Wearing, Patricia Cooper, Philip M Haygarth, Timothy S George
Phosphorus (P) and nitrogen (N) use efficiency may be improved through increased biodiversity in agroecosystems. Phenotypic variation in plants' response to nutrient deficiency may influence positive complementarity in intercropping systems. A multicomponent screening approach was used to assess the influence of P supply and N source on the phenotypic plasticity of nutrient foraging traits in barley (H. vulgare L.) and legume species. Root morphology and exudation were determined in six plant nutrient treatments...
February 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28097368/incidence-of-and-risk-factors-for-skin-cancer-in-organ-transplant-recipients-in-the-united-states
#14
MULTICENTER STUDY
Giorgia L Garrett, Paul D Blanc, John Boscardin, Amanda Abramson Lloyd, Rehana L Ahmed, Tiffany Anthony, Kristin Bibee, Andrew Breithaupt, Jennifer Cannon, Amy Chen, Joyce Y Cheng, Zelma Chiesa-Fuxench, Oscar R Colegio, Clara Curiel-Lewandrowski, Christina A Del Guzzo, Max Disse, Margaret Dowd, Robert Eilers, Arisa Elena Ortiz, Caroline Morris, Spring K Golden, Michael S Graves, John R Griffin, R Samuel Hopkins, Conway C Huang, Gordon Hyeonjin Bae, Anokhi Jambusaria, Thomas A Jennings, Shang I Brian Jiang, Pritesh S Karia, Shilpi Khetarpal, Changhyun Kim, Goran Klintmalm, Kathryn Konicke, Shlomo A Koyfman, Charlene Lam, Peter Lee, Justin J Leitenberger, Tiffany Loh, Stefan Lowenstein, Reshmi Madankumar, Jacqueline F Moreau, Rajiv I Nijhawan, Shari Ochoa, Edit B Olasz, Elaine Otchere, Clark Otley, Jeremy Oulton, Parth H Patel, Vishal Anil Patel, Arpan V Prabhu, Melissa Pugliano-Mauro, Chrysalyne D Schmults, Sarah Schram, Allen F Shih, Thuzar Shin, Seaver Soon, Teresa Soriano, Divya Srivastava, Jennifer A Stein, Kara Sternhell-Blackwell, Stan Taylor, Allison Vidimos, Peggy Wu, Nicholas Zajdel, Daniel Zelac, Sarah T Arron
Importance: Skin cancer is the most common malignancy occurring after organ transplantation. Although previous research has reported an increased risk of skin cancer in solid organ transplant recipients (OTRs), no study has estimated the posttransplant population-based incidence in the United States. Objective: To determine the incidence and evaluate the risk factors for posttransplant skin cancer, including squamous cell carcinoma (SCC), melanoma (MM), and Merkel cell carcinoma (MCC) in a cohort of US OTRs receiving a primary organ transplant in 2003 or 2008...
March 1, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28079773/pregnancies-after-the-diagnosis-of-mild-gestational-diabetes-mellitus-and-risk-of-cardiometabolic-disorders
#15
RANDOMIZED CONTROLLED TRIAL
Michael W Varner, Madeline Murguia Rice, Mark B Landon, Brian M Casey, Uma M Reddy, Ronald J Wapner, Dwight J Rouse, Alan T N Tita, John M Thorp, Edward K Chien, George R Saade, Alan M Peaceman, Sean C Blackwell, J Peter Vandorsten
OBJECTIVE: To assess the association of subsequent pregnancy with subsequent metabolic syndrome and type II diabetes mellitus after a pregnancy complicated by mild gestational diabetes mellitus (GDM). METHODS: We conducted a prospective observational follow-up study of women with mild GDM randomized from 2002 to 2007 to usual care or dietary intervention and glucose self-monitoring. Women were evaluated 5-10 years after the parent study. Participants were grouped according to the number of subsequent pregnancies (group A, none [reference]; group B, one; group C, two or greater)...
February 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28050050/phosphate-stable-oxygen-isotope-variability-within-a-temperate-agricultural-soil
#16
Steven J Granger, Paul Harris, Sabine Peukert, Rongrong Guo, Federica Tamburini, Martin S A Blackwell, Nicholas J K Howden, Steve McGrath
In this study, we conduct a spatial analysis of soil total phosphorus (TP), acid extractable phosphate (PO4) and the stable oxygen (O) isotope ratio within the PO4 molecule (δ(18)OPO4 ) from an intensively managed agricultural grassland site. Total P in the soil was found to range from 736 to 1952 mg P kg(- 1), of which between 12 and 48% was extractable using a 1 M HCl (HClPO4 ) solution with the two variables exhibiting a strong positive correlation. The δ(18)OPO4 of the extracted PO4 ranged from 17...
January 1, 2017: Geoderma
https://www.readbyqxmd.com/read/28008101/muscle-metabolic-and-neuromuscular-determinants-of-fatigue-during-cycling-in-different-exercise-intensity-domains
#17
Matthew I Black, Andrew M Jones, Jamie R Blackwell, Stephen J Bailey, Lee J Wylie, Sinead T J McDonagh, Christopher Thompson, James Kelly, Paul Sumners, Katya N Mileva, Joanna L Bowtell, Anni Vanhatalo
Lactate or gas exchange threshold (GET) and critical power (CP) are closely associated with human exercise performance. We tested the hypothesis that the limit of tolerance (Tlim) during cycle exercise performed within the exercise intensity domains demarcated by GET and CP is linked to discrete muscle metabolic and neuromuscular responses. Eleven men performed a ramp incremental exercise test, 4-5 severe-intensity (SEV; >CP) constant-work-rate (CWR) tests until Tlim, a heavy-intensity (HVY; <CP but >GET) CWR test until Tlim, and a moderate-intensity (MOD; <GET) CWR test until Tlim Muscle biopsies revealed that a similar (P > 0...
March 1, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28006082/simplified-aip-ii-peptidomimetics-are-potent-inhibitors-of-staphylococcus-aureus-agrc-quorum-sensing-receptors
#18
Joseph K Vasquez, Yftah Tal-Gan, Gabriel Cornilescu, Kimberly A Tyler, Helen E Blackwell
The bacterial pathogen Staphylococcus aureus controls many aspects of virulence by using the accessory gene regulator (agr) quorum sensing (QS) system. The agr system is activated by a macrocyclic peptide signal known as an autoinducing peptide (AIP). We sought to develop structurally simplified mimetics of AIPs for use as chemical tools to study QS in S. aureus. Herein, we report new peptidomimetic AgrC receptor inhibitors based on a tail-truncated AIP-II peptide that have almost analogous inhibitory activities to the parent peptide...
February 16, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28002948/survival-of-vinyl-chloride-respiring-dehalococcoides-mccartyi-under-long-term-electron-donor-limitation
#19
Koshlan Mayer-Blackwell, Mohammad F Azizian, Jennifer K Green, Alfred M Spormann, Lewis Semprini
In anoxic groundwater aquifers, the long-term survival of Dehalococcoides mccartyi populations expressing the gene vcrA (or bvcA) encoding reductive vinyl chloride dehalogenases are important to achieve complete dechlorination of tetrachloroethene (PCE) and trichloroethene (TCE) to nonchlorinated ethene. The absence or inactivity of vcrA-containing Dehalococcoides results in the accumulation of the harmful chlorinated intermediates dichloroethene (DCE) and vinyl chloride (VC). Although vcrA-containing Dehalococcoides subpopulations depend on synergistic interaction with other organohalide-respiring populations generating their metabolic electron acceptors (DCE and VC), their survival requires successful competition for electron donor within the entire organohalide-respiring microbial community...
February 7, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/27987861/fabrication-and-mechanical-properties-of-composite-based-on-%C3%AE-chitin-and-polyacrylic-acid
#20
Olga I Bogdanova, Dmitry K Polyakov, Dmitry R Streltsov, Alevtina I Kulebyakina, Anton S Orekhov, Alexander L Vasiliev, John Blackwell, Sergey N Chvalun
Squid β-chitin has been exfoliated in aqueous acrylic acid (AA), after which a composite film of chitin microfibrils in polyacrylic acid (PAA) has been prepared by in situ polymerization of the AA. The segregated chitin fibrils in the composite are 4-6nm in diameter, with an aspect ratio >250. After drying cast films of the composites containing 1, 2 and 3% (w/w) chitin at 140°C for four hours, there was a dramatic resistance to swelling in water, in that the dried films showed only small changes in shape and properties after four hours immersed in water...
February 10, 2017: Carbohydrate Polymers
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