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https://www.readbyqxmd.com/read/28345874/delivery-of-pesticides-to-plant-parasitic-nematodes-using-tobacco-mild-green-mosaic-virus-as-a-nanocarrier
#1
Paul L Chariou, Nicole F Steinmetz
Plant parasitic nematodes are a major burden to the global agricultural industry, causing a $157 billion loss each year in crop production worldwide. Effective treatment requires large doses of nematicides to be applied, putting the environment and human health at risk. Challenges are to treat nematodes that are located deep within the soil, feeding on the roots of plants. To attack the problem at its roots, we propose the use of tobacco mild green mosaic virus (TMGMV), an EPA-approved herbicide as a carrier to deliver nematicides...
March 27, 2017: ACS Nano
https://www.readbyqxmd.com/read/28343444/a-pilot-study-for-antimicrobial-stewardship-post-discharge
#2
Justin M Jones, Nathan D Leedahl, Ashley Losing, Paul J Carson, David D Leedahl
PURPOSE: Lack of patient follow-up is a major concern during care transitions, and the role of an antimicrobial stewardship program (ASP) in assessing antimicrobial regimens after hospital discharge is not well described. We implemented an expanded ASP to include patients recently discharged from the hospital and measured its impact on inappropriate antimicrobial therapy 72 hours after inpatient culture data were finalized. METHODS: A prospective cohort study was conducted at a 583-bed tertiary care center in the Upper Midwest of America...
January 1, 2017: Journal of Pharmacy Practice
https://www.readbyqxmd.com/read/28343281/using-patterns-of-genetic-association-to-elucidate-shared-genetic-etiologies-across-psychiatric-disorders
#3
Seung Bin Cho, Fazil Aliev, Shaunna L Clark, Amy E Adkins, Howard J Edenberg, Kathleen K Bucholz, Bernice Porjesz, Danielle M Dick
Twin studies indicate that latent genetic factors overlap across comorbid psychiatric disorders. In this study, we used a novel approach to elucidate shared genetic factors across psychiatric outcomes by clustering single nucleotide polymorphisms based on their genome-wide association patterns. We applied latent profile analysis (LPA) to p-values resulting from genome-wide association studies across three phenotypes: symptom counts of alcohol dependence (AD), antisocial personality disorder (ASP), and major depression (MD), using the European-American case-control genome-wide association study subsample of the collaborative study on the genetics of alcoholism (N = 1399)...
March 25, 2017: Behavior Genetics
https://www.readbyqxmd.com/read/28342700/nicotine-replacement-therapy-in-patients-with-aneurysmal-subarachnoid-hemorrhage-systematic-review-of-the-literature-and-survey-of-canadian-practice
#4
REVIEW
Ricky D Turgeon, Stephano J Chang, Charlotte Dandurand, Peter A Gooderham, Camille Hunt
Tobacco smoke increases the risk of aneurysmal subarachnoid hemorrhage (SAH), as well as complications such as vasospasm. Most patients presenting with aneurysmal SAH smoke, and many survivors continue to smoke after discharge. Neurosurgeons often hesitate to use nicotine replacement therapy (NRT) during hospitalization of patients with SAH due to concerns of inducing vasospasm. We aimed to evaluate the safety and efficacy, and patterns of use of NRT in smokers hospitalized for SAH. We performed a systematic review of MEDLINE, CENTRAL, Embase, and unpublished sources of literature to October 2016 for randomized and observational studies comparing exposure to non-exposure of smoking cessation products in the acute phase of aneurysmal SAH...
March 22, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28341809/structural-basis-of-molecular-recognition-of-helical-histone-h3-tail-by-phd-finger-domains
#5
Alessio Bortoluzzi, Anastasia Amato, Xavier Lucas, Manuel Blank, Alessio Ciulli
The plant homeodomain (PHD) fingers are amongst the largest family of epigenetic domains, first characterized as readers of methylated H3K4. Readout of histone post-translational modifications by PHDs has been the subject of intense investigation, however less is known about the recognition of secondary structure features within histone tail itself. We solved the crystal structure of the PHD finger of the bromodomain adjacent to zinc finger 2A (BAZ2A, also known as TIP5) in complex with unmodified N-terminal histone H3 tail...
March 24, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28341448/the-drosophila-dock-family-protein-sponge-is-required-for-development-of-the-air-sac-primordium
#6
Kazushge Morishita, Dang Ngoc Anh Suong, Hideki Yoshida, Masamitsu Yamaguchi
Dedicator of cytokinesis (DOCK) family genes are known as DOCK1-DOCK11 in mammals. DOCK family proteins mainly regulate actin filament polymerization and/or depolymerization and are GEF proteins, which contribute to cellular signaling events by activating small G proteins. Sponge (Spg) is a Drosophila counterpart to mammalian DOCK3/DOCK4, and plays a role in embryonic central nervous system development, R7 photoreceptor cell differentiation, and adult thorax development. In order to conduct further functional analyses on Spg in vivo, we examined its localization in third instar larval wing imaginal discs...
March 21, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28340355/the-human-immunodeficiency-virus-1-asp-rna-promotes-viral-latency-by-recruiting-the-polycomb-repressor-complex-2-and-promoting-nucleosome-assembly
#7
Juan C Zapata, Federica Campilongo, Robert A Barclay, Catherine DeMarino, Maria D Iglesias-Ussel, Fatah Kashanchi, Fabio Romerio
Various epigenetic marks at the HIV-1 5'LTR suppress proviral expression and promote latency. Cellular antisense transcripts known as long noncoding RNAs (lncRNAs) recruit the polycomb repressor complex 2 (PRC2) to gene promoters, which catalyzes trimethylation of lysine 27 on histone H3 (H3K27me3), thus promoting nucleosome assembly and suppressing gene expression. We found that an HIV-1 antisense transcript expressed from the 3'LTR and encoding the antisense protein ASP promotes proviral latency. Expression of ASP RNA reduced HIV-1 replication in Jurkat cells...
March 21, 2017: Virology
https://www.readbyqxmd.com/read/28340295/response-of-catalase-of-the-mouse-primary-hepatocytes-to-sodium-dodecylbenzene-sulfonate-and-the-underlying-molecular-mechanisms
#8
Jing Wang, Jiaxi Wang, Lu Zhang, Rutao Liu, Wansong Zong
This study investigated the adverse effects of sodium dodecylbenzene sulfonates (SDBS) on the mouse primary hepatocytes by conducting cell viability, intracellular oxidative stress level and catalase (CAT) activity assays. It was shown that SDBS altered CAT activities, triggered oxidative stress, and thus exhibited cytotoxicity to the hepatocytes. Both the stimulation of intracellular CAT production and the inhibition of molecular CAT activity contributed to intracellular CAT activity change. Molecular mechanisms underlying CAT activity inhibition and structural changes were explored by isothermal titration calorimetry, multi-spectroscopy and molecular docking studies...
March 24, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28340261/effect-of-a-high-concentrate-diet-on-milk-components-and-mammary-health-in-holstein-dairy-cows
#9
Z L Xie, J Zhang, D M Zhang, J F Li, Y H Lin
In order to evaluate the milk yield, milk quality, and health of dairy cows fed a high-concentrate (HC) diet, eight lactating Holstein dairy cattle were randomly assigned to HC or low-concentrate (LC) diet groups and fed for 50 days, and the auto-control studying before and after treatment with the two diets was used. During the experiment, plasma and milk samples were collected and measured. With regard to milk component, HC feeding led to higher milk production (P < 0.05), but significantly lower milk protein percentage (P < 0...
March 22, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28339590/reducing-antimicrobial-use-in-an-academic-pediatric-institution-evaluation-of-the-effectiveness-of-a-prospective-audit-with-real-time-feedback
#10
Zachary I Willis, Jessica Gillon, Meng Xu, James C Slaughter, M Cecilia Di Pentima
Introduction: Antimicrobial use is decreasing across freestanding children's hospitals, predominantly in institutions with antimicrobial stewardship programs (ASPs) in place. A highly effective ASP should effect a greater decrease in use than predicted by existing trends. Antimicrobial stewardship programs depend on clinician adherence to program recommendations, but little is known about factors associated with adherence. Methods: Parenteral antimicrobial-use data for our institution and 43 additional freestanding children's hospitals were obtained and normalized for patient census...
October 7, 2016: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28336574/switching-head-group-selectivity-in-mammalian-sphingolipid-biosynthesis-by-active-site-engineering-of-sphingomyelin-synthases
#11
Matthijs Kol, Radhakrishnan Panatala, Mirjana Nordmann, Leoni Swart, Leonie Van Suijlekom, Birol Cabukusta, Angelika Hilderink, Tanja Gabrietz, John G M Mina, Pentti Somerharju, Sergei Korneev, Fikadu G Tafesse, Joost C M Holthuis
Sphingomyelin (SM) is a fundamental component of mammalian cell membranes that contributes to mechanical stability, signaling and sorting. Its production involves the transfer of phosphocholine from phosphatidylcholine onto ceramide, a reaction catalyzed by SM synthase SMS1 in the Golgi and SMS2 at the plasma membrane. Mammalian cells also synthesize trace amounts of the SM analog ceramide phosphoethanolamine (CPE), but the physiological relevance of CPE production is unclear. Previous work revealed that SMS2 is a bifunctional enzyme producing both SM and CPE whereas a closely related enzyme, SMSr/SAMD8, acts as a monofunctional CPE synthase in the ER...
March 23, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28336429/insight-into-stereochemistry-of-a-new-imp-allelic-variant-imp-55-metallo-%C3%AE-lactamase-identified-in-a-clinical-strain-of-acinetobacter-baumannii
#12
Mohammad Reza Shakibaie, Omid Azizi, Fereshteh Shahcheraghi
Metallo-β-lactamases (MBLs) such as IMPs are broad-spectrum β-lactamases that inactivate virtually all β-lactam antibiotics including carbapenems. In this study, we investigated the hydrolytic activity, phylogenetic relationship, three dimensional (3D) structure including zinc binding motif of a new IMP variant (IMP-55) identified in a clinical strain of Acinetobacter baumannii (AB). AB strain 56 was isolated from an adult ICU of a teaching hospital in Kerman, Iran. It exhibited MIC 32μg/ml to imipenem and showed MBL activity...
March 20, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28335210/application-of-l-aspartic-acid-capped-zns-mn-colloidal-nanocrystals-as-a-photosensor-for-the-detection-of-copper-ii-ions-in-aqueous-solution
#13
Jungho Heo, Cheong-Soo Hwang
Water-dispersible ZnS:Mn nanocrystals (NCs) were synthesized by capping the surface with polar L-aspartic acid (Asp) molecules. The obtained ZnS:Mn-Asp NC product was optically and physically characterized using the corresponding spectroscopic methods. The ultra violet-visible (UV-VIS) absorption spectrum and photoluminescence (PL) emission spectrum of the NCs showed broad peaks at 320 and 590 nm, respectively. The average particle size measured from the obtained high resolution-transmission electron microscopy (HR-TEM) image was 5...
April 27, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28334956/prune-is-crucial-for-normal-brain-development-and-mutated-in-microcephaly-with-neurodevelopmental-impairment
#14
Massimo Zollo, Mustafa Ahmed, Veronica Ferrucci, Vincenzo Salpietro, Fatemeh Asadzadeh, Marianeve Carotenuto, Reza Maroofian, Ahmed Al-Amri, Royana Singh, Iolanda Scognamiglio, Majid Mojarrad, Luca Musella, Angela Duilio, Angela Di Somma, Ender Karaca, Anna Rajab, Aisha Al-Khayat, Tribhuvan Mohan Mohapatra, Atieh Eslahi, Farah Ashrafzadeh, Lettie E Rawlins, Rajniti Prasad, Rashmi Gupta, Preeti Kumari, Mona Srivastava, Flora Cozzolino, Sunil Kumar Rai, Maria Monti, Gaurav V Harlalka, Michael A Simpson, Philip Rich, Fatema Al-Salmi, Michael A Patton, Barry A Chioza, Stephanie Efthymiou, Francesca Granata, Gabriella Di Rosa, Sarah Wiethoff, Eugenia Borgione, Carmela Scuderi, Kshitij Mankad, Michael G Hanna, Piero Pucci, Henry Houlden, James R Lupski, Andrew H Crosby, Emma L Baple
PRUNE is a member of the DHH (Asp-His-His) phosphoesterase protein superfamily of molecules important for cell motility, and implicated in cancer progression. Here we investigated multiple families from Oman, India, Iran and Italy with individuals affected by a new autosomal recessive neurodevelopmental and degenerative disorder in which the cardinal features include primary microcephaly and profound global developmental delay. Our genetic studies identified biallelic mutations of PRUNE1 as responsible. Our functional assays of disease-associated variant alleles revealed impaired microtubule polymerization, as well as cell migration and proliferation properties, of mutant PRUNE...
February 28, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28333302/outcomes-of-multisite-antimicrobial-stewardship-programme-implementation-with-a-shared-clinical-decision-support-system
#15
Stuart E Bond, Adriana J Chubaty, Suman Adhikari, Spiros Miyakis, Craig S Boutlis, Wilfred W Yeo, Marijka J Batterham, Cara Dickson, Brendan J McMullan, Mona Mostaghim, Samantha Li-Yan Hui, Kate R Clezy, Pamela Konecny
Background: Studies evaluating antimicrobial stewardship programmes (ASPs) supported by computerized clinical decision support systems (CDSSs) have predominantly been conducted in single site metropolitan hospitals. Objectives: To examine outcomes of multisite ASP implementation supported by a centrally deployed CDSS. Methods: An interrupted time series study was conducted across five hospitals in New South Wales, Australia, from 2010 to 2014...
March 14, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28333297/effect-of-adding-a-mobile-health-intervention-to-a-multimodal-antimicrobial-stewardship-programme-across-three-teaching-hospitals-an-interrupted-time-series-study
#16
E Charani, M Gharbi, L S P Moore, E Castro-Sanchéz, W Lawson, M Gilchrist, A H Holmes
Objectives: To evaluate the impact of adding a mobile health (mHealth) decision support system for antibiotic prescribing to an established antimicrobial stewardship programme (ASP). Methods: In August 2011, the antimicrobial prescribing policy was converted into a mobile application (app). A segmented regression analysis of interrupted time series was used to assess the impact of the app on prescribing indicators, using data (2008-14) from a biannual point prevalence survey of medical and surgical wards...
February 28, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28332344/impact-of-intervention-by-an-antimicrobial-stewardship-team-on-conversion-from-intravenous-to-oral-fluoroquinolones
#17
Soh Mee Park, Hyung Sook Kim, Young Mi Jeong, Jung Hwa Lee, Eunsook Lee, Euni Lee, Kyoung Ho Song, Hong Bin Kim, Eu Suk Kim
BACKGROUND: Early conversion from intravenous to oral antibiotics plays an important role in lowering the risk of catheter-associated infections, reducing the workload of nurses, decreasing direct and indirect costs, and shortening hospital stays. In August 2015, an antimicrobial stewardship program (ASP) was implemented to facilitate conversion from intravenous to oral administration of fluoroquinolones in our institute. This study evaluated the clinical and economic impact of the intervention...
March 13, 2017: Infection & Chemotherapy
https://www.readbyqxmd.com/read/28327450/impact-of-attenuated-signal-plaque-observed-by-intravascular-ultrasound-on-vessel-response-after-drug-eluting-stent-implantation
#18
Hideki Kitahara, Katsuhisa Waseda, Kenji Sakamoto, Ryotaro Yamada, Ching-Chang Huang, Daisaku Nakatani, Kenji Sakata, Osami Kawarada, Paul G Yock, Yutaka Matsuyama, Hiroyoshi Yokoi, Masato Nakamura, Toshiya Muramatsu, Shinsuke Nanto, Peter J Fitzgerald, Yasuhiro Honda
BACKGROUND AND AIMS: The aim of this study was to investigate the impact of attenuated-signal plaque (ASP) observed by intravascular ultrasound (IVUS) on vessel response after drug-eluting stent implantation. METHODS: Data were derived from the IVUS cohort of the J-DESsERT trial comparing paclitaxel- and sirolimus-eluting stents. Serial IVUS analysis (pre- and post-intervention, and 8-month follow-up) was performed in 136 non-AMI lesions. ASP was defined as hypoechoic plaque with ultrasound attenuation without calcification...
February 20, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28326072/protein-l-isoaspartyl-methyltransferase-pimt-is-required-for-survival-of-salmonella-typhimurium-at-42%C3%A2-c-and-contributes-to-the-virulence-in-poultry
#19
Pavan K Pesingi, Manoj Kumawat, Pranatee Behera, Sunil K Dixit, Rajesh K Agarwal, Tapas K Goswami, Manish Mahawar
Poultry birds are asymptomatic reservoir of Salmonella Typhimurium (S. Typhimurium) but act as source of human infection for this bacterium. Inside the poultry, S. Typhimurium experiences several stresses, 42°C body temperature of birds is one of them. Proteins are highly susceptible to temperature mediated damage. Conversion of protein bound aspartate (Asp) residues to iso-aspartate (iso-Asp) is one of such modifications that occur at elevated temperature. Iso-Asp formation has been linked to protein inactivation and compromised cellular survival...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28325874/ion-and-inhibitor-binding-of-the-double-ring-ion-selectivity-filter-of-the-mitochondrial-calcium-uniporter
#20
Chan Cao, Shuqing Wang, Tanxing Cui, Xun-Cheng Su, James J Chou
The calcium (Ca(2+)) uniporter of mitochondria is a holocomplex consisting of the Ca(2+)-conducting channel, known as mitochondrial calcium uniporter (MCU), and several accessory and regulatory components. A previous electrophysiology study found that the uniporter has high Ca(2+) selectivity and conductance and this depends critically on the conserved amino acid sequence motif, DXXE (Asp-X-X-Glu) of MCU. A recent NMR structure of the MCU channel from Caenorhabditis elegans revealed that the DXXE forms two parallel carboxylate rings at the channel entrance that seem to serve as the ion selectivity filter, although direct ion interaction of this structural motif has not been addressed...
March 21, 2017: Proceedings of the National Academy of Sciences of the United States of America
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