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https://www.readbyqxmd.com/read/28531096/the-lys-asp-tyr-triad-within-the-mite-allergen-der-p-1-propeptide-is-a-critical-structural-element-for-the-ph-dependent-initiation-of-the-protease-maturation
#1
Andy Chevigné, Vincenzo Campizi, Martyna Szpakowska, David Bourry, Marie-Eve Dumez, José C Martins, André Matagne, Moreno Galleni, Alain Jacquet
The major house dust mite allergen, Der p 1, is a papain-like cysteine protease expressed as an inactive precursor, proDer p 1, carrying an N-terminal propeptide with a unique structure. The maturation of the zymogen into an enzymatically-active form of Der p 1 is a multistep autocatalytic process initiated under acidic conditions through conformational changes of the propeptide, leading to the loss of its inhibitory ability and its subsequent gradual cleavage. The aims of this study were to characterize the residues present in the Der p 1 propeptide involved in the initiation of the zymogen maturation process, but also to assess the impact of acidic pH on the propeptide structure, the activity of Der p 1 and the fate of the propeptide...
May 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28528854/erratum-to-creation-and-validation-of-a-simulator-for-neonatal-brain-ultrasonography-a-pilot-study-acad-radiol-2017-24-76-83
#2
Andy Tsai, Carol E Barnewolt, Sanjay P Prabhu, Reimi Yonekura, Andrew Hosmer, Noah E Schulz, Peter H Weinstock
No abstract text is available yet for this article.
May 18, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28526959/adjuvant-tamoxifen-but-not-aromatase-inhibitor-therapy-decreases-serum-levels-of-the-wnt-inhibitor-dickkopf-1-while-not-affecting-sclerostin-in-breast-cancer-patients
#3
Andy Göbel, Jan D Kuhlmann, Theresa Link, Pauline Wimberger, Andrew J Browne, Martina Rauner, Lorenz C Hofbauer, Tilman D Rachner
PURPOSE: Endocrine therapies, including tamoxifen or aromatase inhibitors, are indispensable for the treatment of patients with estrogen receptor (ER)- and/or progesterone-positive breast cancer. Whereas tamoxifen displays partial ER agonistic effects in bone, aromatase inhibitors increase bone resorption and fracture risk. The Wnt inhibitors dickkopf-1 (DKK-1) and sclerostin negatively impact bone formation and are considered targets for the treatment of bone disorders. However, the effect of endocrine therapies on serum DKK-1 and sclerostin levels in patients with primary breast cancer remains elusive...
May 19, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28524373/sialic-acids-regulate-microvessel-permeability-revealed-by-novel-in-vivo-studies-of-endothelial-glycocalyx-structure-and-function
#4
Kai Betteridge, Kenton Arkill, Chris Neal, Steve Harper, Becky Foster, Simon Satchell, David Bates, Andy Salmon
The endothelial glycocalyx forms a continuous coat over the luminal surface of all vessels, and regulates multiple vascular functions. The contribution of individual components of the endothelial glycocalyx to one critical vascular function, microvascular permeability, remains unclear. We developed novel, real-time, paired methodologies to study the contribution of sialic acids within the endothelial glycocalyx to the structural and functional permeability properties of the same microvessel in vivo. Single perfused rat mesenteric microvessels were perfused with fluorescent endothelial cell membrane and glycocalyx labels, and imaged with confocal microscopy...
May 19, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28523961/chronotype-and-response-to-training-during-the-polar-night-a-pilot-study
#5
Jacopo Antonino Vitale, Eva Bjoerkesett, Andrea Campana, Giacomo Panizza, Andi Weydahl
BACKGROUND: An individual's chronotype influences his or her physiological rhythms. Some studies have looked at the effect of time of day on the responses to exercise, but studies on the effect of long-term training are lacking. OBJECTIVE:  To report the effects of an 8-week training period during the polar night in non-athletes of different chronotypes living at 70°N. DESIGN:  In all, 10 morning (M), 10 neither (N) and 10 evening (E) types were recruited, and their aerobic capacity (VO2max), strength, flexibility and balance before and after the training period were tested...
2017: International Journal of Circumpolar Health
https://www.readbyqxmd.com/read/28523412/epidemiological-risk-factors-for-animal-influenza-a-viruses-overcoming-species-barriers
#6
REVIEW
Kate A Harris, Gudrun S Freidl, Olga S Munoz, Sophie von Dobschuetz, Marco De Nardi, Barbara Wieland, Marion P G Koopmans, Katharina D C Stärk, Kristien van Reeth, Gwen Dauphin, Adam Meijer, Erwin de Bruin, Ilaria Capua, Andy A Hill, Rowena Kosmider, Jill Banks, Kim Stevens, Sylvie van der Werf, Vincent Enouf, Karen van der Meulen, Ian H Brown, Dennis J Alexander, Andrew C Breed
Drivers and risk factors for Influenza A virus transmission across species barriers are poorly understood, despite the ever present threat to human and animal health potentially on a pandemic scale. Here we review the published evidence for epidemiological risk factors associated with influenza viruses transmitting between animal species and from animals to humans. A total of 39 papers were found with evidence of epidemiological risk factors for influenza virus transmission from animals to humans; 18 of which had some statistical measure associated with the transmission of a virus...
May 18, 2017: EcoHealth
https://www.readbyqxmd.com/read/28521874/sirna-mediated-inhibition-of-srebp-cleavage-activating-protein-reduces-dyslipidemia-in-spontaneously-dysmetabolic-rhesus-monkeys
#7
Beth Ann Murphy, Marija Tadin-Strapps, Kristian Jensen, Robin Mogg, Andy Liaw, Kithsiri Herath, Gowri Bhat, David G McLaren, Stephen F Previs, Shirly Pinto
BACKGROUND: SREBP cleavage-activating protein (SCAP) is a cholesterol binding endoplasmic reticulum (ER) membrane protein that is required to activate SREBP transcription factors. SREBPs regulate genes involved in lipid biosynthesis. They also influence lipid clearance by modulating the expression of LDL receptor (LDLR) and proprotein convertase subtilisin/kexin type 9 (PCSK9) genes. Inhibiting SCAP decreases circulating PCSK9, triglycerides (TG), and LDL-cholesterol (LDL-C), both in vitro and in vivo...
June 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28521375/a-genetic-marker-associated-with-shoulder-dislocation
#8
Stuart Kim, John P Kleimeyer, Marwa A Ahmed, Andy L Avins, Michael Fredericson, Jason L Dragoo, John P A Ioannidis
Shoulder dislocations are common shoulder injuries associated with athletic activity in contact sports, such as football, rugby, wrestling, and hockey. Identifying genetic loci associated with shoulder dislocation could shed light on underlying mechanisms for injury and identify predictive genetic markers. To identify DNA polymorphisms associated with shoulder dislocation, a genome-wide association screen was performed using publically available data from the Research Program in Genes, Environment and Health including 662 cases of shoulder dislocation and 82 602 controls from the European ancestry group...
May 18, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28520605/reducing-postsurgical-wound-complications-a-critical-review
#9
Barbara Delmore, Joshua Mitchell Cohen, Daniel O'Neill, Andy Chu, Vinh Pham, Ernest Chiu
GENERAL PURPOSE: To provide information on risk factors for surgical site infections (SSIs) and actions to mitigate that risk. TARGET AUDIENCE: This continuing education activity is intended for surgeons, surgical teams, physicians, physician assistants, nurse practitioners, and nurses with an interest in skin and wound care. LEARNING OBJECTIVES/OUTCOMES: After participating in this educational activity, the participant should be better able to:1...
June 2017: Advances in Skin & Wound Care
https://www.readbyqxmd.com/read/28513709/correction-optofluidic-time-stretch-imaging-an-emerging-tool-for-high-throughput-imaging-flow-cytometry
#10
Andy K S Lau, Ho Cheung Shum, Kenneth K Y Wong, Kevin K Tsia
Correction for 'Optofluidic time-stretch imaging - an emerging tool for high-throughput imaging flow cytometry' by Andy K. S. Lau et al., Lab Chip, 2016, 16, 1743-1756.
May 17, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28512030/discovery-of-potent-and-orally-active-1-4-disubstituted-indazoles-as-novel-allosteric-glucokinase-activators
#11
Zacharia S Cheruvallath, Stephen L Gwaltney, Mark Sabat, Mingnam Tang, Haixia Wang, Andy Jennings, David Hosfield, Bumsup Lee, Yiqin Wu, Petro Halkowycz, Charles E Grimshaw
Guided by co-crystal structural information obtained from a different series we were exploring, a scaffold morphing and SBDD approach led to the discovery of the 1,4-disubstituted indazole series as a novel class of GKAs that potently activate GK in enzyme and cell assays. anti-diabetic OGTT efficacy was demonstrated with 29 in a rodent models of type 2 diabetes.
April 13, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28507681/complementary-oligonucleotides-regulate-induced-fit-ligand-binding-in-duplexed-aptamers
#12
Jeffrey D Munzar, Andy Ng, Mario Corrado, David Juncker
Duplexed aptamers (DAs) are engineered by hybridizing an aptamer-complementary element (ACE, e.g. a DNA oligonucleotide) to an aptamer; to date, ACEs have been presumed to sequester the aptamer into a non-binding duplex state, in line with a conformational selection-based model of ligand binding. Here, we uncover that DAs can actively bind a ligand from the duplex state through an ACE-regulated induced fit mechanism. Using a widely-studied ATP DNA aptamer and a solution-based equilibrium assay, DAs were found to exhibit affinities up to 1 000 000-fold higher than predicted by conformational selection alone, with different ACEs regulating the level of induced fit binding, as well as the cooperative allostery of the DA (Hill slope of 1...
March 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/28506499/determination-of-butyltins-phenyltins-and-octyltins-in-foods-with-preservation-of-their-moieties-a-critical-review-on-analytical-methods
#13
REVIEW
Stephen W C Chung, Andy H T Wu
Tributyltin and triphenyltin have been extensively applied in anti-fouling paints since the 1960s. Hence, organotin compounds (OTCs), especially butyltins and phenyltins, in seafood has been of concern for decades. Even though the "International Convention on the Control of Harmful Anti-Fouling Systems on Ships, 2001" entered into force internationally in 2008 and prohibited the use of OTCs in anti-fouling paints used on ships, the analysis of OTCs in seafood was not commonly included in routine monitoring programmes...
May 8, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28506257/an-overview-of-systematic-reviews-of-complementary-and-alternative-therapies-for-fibromyalgia-using-both-amstar-and-robis-as-quality-assessment-tools
#14
Rachel Perry, Verity Leach, Philippa Davies, Chris Penfold, Andy Ness, Rachel Churchill
BACKGROUND: Fibromyalgia (FM) is a chronic, debilitating pain disorder. Dissatisfaction with conventional medicine can lead people with FM to turn to complementary and alternative medicine (CAM). Two previous overviews of systematic reviews of CAM for FM have been published, but they did not assessed for risk of bias in the review process. METHODS: Five databases Medline, Embase, AMED (via OVID), Web of Science and Central were searched from their inception to December 2015...
May 15, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28500271/causal-associations-of-adiposity-and-body-fat-distribution-with-coronary-heart-disease-stroke-subtypes-and-type-2-diabetes-a-mendelian-randomization-analysis
#15
Caroline Dale, Ghazaleh Fatemifar, Tom Palmer, Jonathan White, David Prieto-Merino, Delilah Zabaneh, Jorgen E L Engmann, Tina Shah, Andrew Wong, Helen R Warren, Stela McLachlan, Stella Trompet, Max Moldovan, Richard W Morris, Reecha Sofat, Meena Kumari, Elina Hyppönen, Barbara J Jefferis, Tom R Gaunt, Yoav Ben-Shlomo, Ang Zhou, Aleksandra Gentry-Maharaj, Andy Ryan, Renée de Mutsert, Raymond Noordam, Mark J Caulfield, J Wouter Jukema, Bradford B Worrall, Patricia B Munroe, Usha Menon, Chris Power, Diana Kuh, Debbie A Lawlor, Steve E Humphries, Dennis O Mook-Kanamori, George Davey Smith, Naveed Sattar, Mika Kivimaki, Jacqueline F Price, Frank Dudbridge, Aroon D Hingorani, Michael V Holmes, Juan-Pablo Casas
Background -Implications of different adiposity measures on cardiovascular disease aetiology remain unclear. In this paper we quantify and contrast causal associations of central adiposity (waist:hip ratio adjusted for BMI (WHRadjBMI)) and general adiposity (body mass index (BMI)) with cardiometabolic disease. Methods -97 independent single nucleotide polymorphisms (SNPs) for BMI and 49 SNPs for WHRadjBMI were used to conduct Mendelian randomization analyses in 14 prospective studies supplemented with CHD data from CARDIoGRAMplusC4D (combined total 66,842 cases), stroke from METASTROKE (12,389 ischaemic stroke cases), type 2 diabetes (T2D) from DIAGRAM (34,840 cases), and lipids from GLGC (213,500 participants) consortia...
May 12, 2017: Circulation
https://www.readbyqxmd.com/read/28499210/micro-scale-environment-and-mental-health-in-later-life-results-from-the-cognitive-function-and-ageing-study-ii-cfas-ii
#16
Yu-Tzu Wu, A Matthew Prina, Andy Jones, Linda E Barnes, Fiona E Matthews, Carol Brayne
BACKGROUND: Poor micro-scale environmental features, such as graffiti and broken windows, have been associated with crime and signs of social disorder with a potential impact on mental health. The aim of this study is to investigate the association between micro-scale environment and mental health problems in later life, including cognitive (cognitive impairment and dementia) and common mental disorders (depressive and anxiety symptoms). METHODS: The method of visual image audits was used to collect micro-scale environmental data for 3590 participants in the Cognitive Function and Ageing Study II, a population-based multicentre cohort of people aged 65 or above in England...
May 5, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28498143/the-crucible-simulation-behavioral-simulation-improves-clinical-leadership-skills-and-understanding-of-complex-health-policy-change
#17
Daniel Cohen, Ivo Vlaev, Laurie McMahon, Sarah Harvey, Andy Mitchell, Leah Borovoi, Ara Darzi
BACKGROUND: The Health and Social Care Act 2012 represents the most complex National Health Service reforms in history. High-quality clinical leadership is important for successful implementation of health service reform. However, little is known about the effectiveness of current leadership training. PURPOSE: This study describes the use of a behavioral simulation to improve the knowledge and leadership of a cohort of medical doctors expected to take leadership roles in the National Health Service...
May 11, 2017: Health Care Management Review
https://www.readbyqxmd.com/read/28494652/the-keap1-nrf2-stress-response-pathway-promotes-mitochondrial-hyperfusion-through-degradation-of-the-mitochondrial-fission-protein-drp1
#18
Rasha Sabouny, Erik Fraunberger, Michèle Geoffrion, Andy Ng, Stephen Baird, Robert Screaton, Ross Milne, Heidi M McBride, Tim Shutt
AIMS: Mitochondrial function is coupled to metabolic and survival pathways through both direct signaling cascades and dynamic changes in mitochondrial morphology. For example, a hyperfused mitochondrial reticulum is activated upon cellular stress and is protective against cell death. As part of a genome-wide siRNA screen, we identified the central redox regulator, Keap1 as a novel regulator of mitochondrial morphology. Here, we aimed to determine the mechanism through which redox signaling and Keap1 mediates changes in mitochondrial morphology...
May 11, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28493061/chronotype-physical-activity-and-sport-performance-a-systematic-review
#19
REVIEW
Jacopo Antonino Vitale, Andi Weydahl
BACKGROUND: Many variables related to sport have been shown to have circadian rhythms. Chronotype is the expression of circadian rhythmicity in an individual, and three categories of chronotype are defined: morning types (M-types), evening types (E-types), and neither types (N-types). M-types show earlier peaks of several psychophysiological variables during the day than E-types. The effect of chronotype on athletic performance has not been extensively investigated. OBJECTIVE: The objective of the present review was to study the effect of chronotype on athletic performance and the psychophysiological responses to physical activity...
May 11, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28492971/current-conservation-status-of-germain-s-langur-trachypithecus-germaini-in-vietnam
#20
Bang Van Tran, Minh Anh Nguyen, Dat Quoc Nguyen, Quan Bich Thi Truong, Andie Ang, Herbert H Covert, Duc Minh Hoang
Following the split of the silvered langurs of Indochina into two species based on molecular and phenotypic data, there is a need to reevaluate their distribution and update their conservation status. Here, we report the distribution and assess the population size of Germain's langur (Trachypithecus germaini) within its known range across Vietnam. We confirmed this species at six of seven survey sites in different habitats within three provinces in the Mekong Delta Region, including semi-evergreen forest at the Seven Mountains of An Giang Province, mangrove forest in Ngoc Hien and Nam Can Districts and Melaleuca forest in U Minh Ha National Park of Ca Mau Province, and limestone forest at Kien Luong Karst Area and semi-evergreen and evergreen forests at Phu Quoc National Park of Kien Giang Province...
May 10, 2017: Primates; Journal of Primatology
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