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https://www.readbyqxmd.com/read/29228202/activity-of-ceftazidime-avibactam-against-problem-enterobacteriaceae-and-pseudomonas-aeruginosa-in-the-uk-2015-16
#1
David M Livermore, Danièle Meunier, Katie L Hopkins, Michel Doumith, Robert Hill, Rachel Pike, Peter Staves, Neil Woodford
Background: Ceftazidime/avibactam combines an established oxyimino-cephalosporin with the first diazabicyclooctane β-lactamase inhibitor to enter clinical use. We reviewed its activity against Gram-negative isolates, predominantly from the UK, referred for resistance investigation in the first year of routine testing, beginning in July 2015. Methods: Isolates were as received from referring laboratories; there is a bias to submit those with suspected carbapenem resistance...
December 8, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29227544/a-fast-and-accurate-isotope-dilution-gc-it-ms-ms-method-for-determination-of-eugenol-in-different-tissues-of-fish-application-to-a-depletion-study-in-mandarin-fish
#2
Yongtao Liu, Xiaohui Ai, Le Li, Jincheng Li, Hong Yang
An accurate, rapid and effective method was established for determination of eugenol in plasma, muscle, skin, liver, kidney and gill of fish using gas chromatography-ion trap tandem mass spectrometry (GC-IT-MS/MS). Samples of muscle, skin, liver, kidney and gill were prepared using the modified QuEChERS (quick, easy, cheap, effective, rugged and safe) procedure, and plasma sample was prepared by a liquid-liquid extraction procedure. Eugenol was monitored in less than 7 min using an electron-ionization source (EI) in MS/MS mode and quantified by internal standard (IS) of eugenol-d3 ...
December 11, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/29227102/electronic-structure-of-cobalt-corrole-pyridine-complexes-noninnocent-five-coordinate-co-ii-corrole-radical-states
#3
Sumit Ganguly, Jeanet Conradie, Jesper Bendix, Kevin J Gagnon, Laura J McCormick, Abhik Ghosh
Two sets of complexes of Co-triarylcorrole-bispyridine complexes, Co[TpXPC](py)2 and Co[Br8TpXPC](py)2 have been synthesized, where TpXPC refers to a meso-tris(para-X-phenyl)corrole ligand with X = CF3, H, Me, and OMe and Br8TpXPC to the corresponding β-octabrominated ligand. The axial pyridines in these complexes were found to be labile and, in dilute solutions in dichloromethane, the complexes dissociate almost completely to the five-coordinate monopyridine complexes. Upon addition of a small quantity of pyridine, the complexes revert back to the six-coordinate forms...
December 11, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/29226147/antifungal-activity-of-aqueous-extracts-of-some-dominant-algerian-medicinal-plants
#4
Nasrine Salhi, Sultan Ayesh Mohammed Saghir, Valeria Terzi, Iman Brahmi, Naima Ghedairi, Samia Bissati
Aim: This study investigated the antifungal properties of aqueous extracts obtained from indigenous plants that grow spontaneously in the Northern Sahara of Algeria. The activities of these plants in controlling two fungal species that belong to Fusarium genus were evaluated in an in vitro assay. Materials and Methods: Fresh aerial parts of four plant species (Artemisia herba alba, Cotula cinerea, Asphodelus tenuifolius, and Euphorbia guyoniana) were collected for the preparation of aqueous extracts...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29224869/effects-of-straw-processing-and-pen-overstocking-on-the-growth-performance-and-sorting-characteristics-of-diets-offered-to-replacement-holstein-dairy-heifers
#5
W K Coblentz, M S Akins, N M Esser, R K Ogden, S L Gelsinger
Our objectives were to evaluate the effects of pen-stocking density and straw processing on the growth performance, feed-bunk sorting behaviors, and hygiene of Holstein dairy heifers. Two corn silage-alfalfa haylage diets diluted with wheat straw were offered; diet composition was identical, except that one diet contained short (well-processed) straw (SS; 46.0% neutral detergent fiber, 12.9% crude protein, 60.7% total digestible nutrients, TDN), and the other long (poorly processed) straw (LS; 46.5% neutral detergent fiber, 12...
December 7, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29224733/validated-maldi-tof-ms-method-for-anthrax-lethal-factor-provides-early-diagnosis-and-evaluation-of-therapeutics
#6
Maribel Gallegos-Candela, Anne E Boyer, Adrian R Woolfitt, Judy Brumlow, Renato C Lins, Conrad P Quinn, Alex R Hoffmaster, Gabriel Meister, John R Barr
Anthrax lethal factor (LF) is a zinc-dependent endoprotease and a critical virulence factor for Bacillus anthracis, the causative agent of anthrax. The mass spectrometry (MS) method for total-LF quantification includes three steps; 1) LF specific antibody capture/concentration, 2) LF-specific hydrolysis of a peptide substrate, and 3) detection and quantification of LF-cleaved peptides by isotope-dilution MALDI-TOF/MS. Recombinant LF spiked plasma was used for calibration and quality control (QC) materials. Specificity was 100% from analysis of serum and plasma from 383 non-infected humans, 31 rabbits, and 24 rhesus macaques...
December 7, 2017: Analytical Biochemistry
https://www.readbyqxmd.com/read/29224359/a-reduced-transcriptome-approach-to-assess-environmental-toxicants-using-zebrafish-embryo-test
#7
Pingping Wang, Pu Xia, Jianghua Yang, Zhihao Wang, Ying Peng, Wei Shi, Daniel L Villeneuve, Hongxia Yu, Xiaowei Zhang
Omics approaches can monitor responses and alterations of biological pathways at genome-scale, which are useful to predict potential adverse effects by environmental toxicants. However, high throughput application of transcriptomics in chemical assessment is limited due to the high cost and lack of "standardized" toxicogenomic methods. Here, a reduced zebrafish transcriptome (RZT) approach was developed to represent the whole transcriptome and to profile bioactivity of chemical and environmental mixtures in zebrafish embryo...
December 11, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29223722/the-effectiveness-of-intravenous-parecoxib-on-the-incidence-of-ipsilateral-shoulder-pain-after-thoracotomy-a-randomized-double-blind-placebo-controlled-trial
#8
Tanyong Pipanmekaporn, Yodying Punjasawadwong, Somrat Charuluxananan, Worawut Lapisatepun, Pavena Bunburaphong, Settapong Boonsri, Apichat Tantraworasin, Nutchanart Bunchungmongkol
OBJECTIVES: To determine the incidence of ipsilateral shoulder pain (ISP) with the therapeutic use of parecoxib compared with a placebo after thoracotomy. DESIGN: A prospective, randomized, double-blind, placebo-controlled trial. SETTING: A tertiary-care university hospital. PARTICIPANTS: Adult patients undergoing an elective thoracotomy between June 2011 and February 2015. INTERVENTIONS: Patients were allocated randomly into the parecoxib group (n = 80) and the control group (n = 80)...
June 1, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29223426/application-of-solidifiers-for-oil-spill-containment-a-review
#9
REVIEW
Fernanda L Motta, Stanislav R Stoyanov, João B P Soares
The need for new and/or improvement of existing oil spill remediation measures has increased substantially amidst growing public concern with the increased transportation of unconventional crudes, such as diluted bitumen products. Solidifiers may be a very good spill response measure to contain and mitigate the effects of oil discharge incidents, as these interact with the oil to limit hydrocarbon release into air and water, prevent it from adhering onto sediment and debris, and could allow for oil recovery and reuse...
November 20, 2017: Chemosphere
https://www.readbyqxmd.com/read/29222888/common-food-antimicrobials-effects-on-cellular-inflammation-and-oxidative-damage-and-their-estimated-occurrence-in-singapore
#10
Claudine Loong, Shin Yih Tsen, Xing Lin Ho, Muhammed Faiz B Raman, Wai Mun Loke
BACKGROUND AND OBJECTIVES: The prevalence and potential health effects of common food antimicrobials in processed foods and beverages are relatively unknown in Singapore. The occurrence of chemical antimicrobials in processed foods and beverages and their effects on inflammation and oxidative stress in vitro were examined. METHODS AND STUDY DESIGN: The occurrence of antimicrobials in 1605 processed food and 359 beverage items were examined by surveying the ingredients on the product labels...
2018: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29221872/proposal-of-concentration-limits-for-determining-the-hazard-property-hp-14-for-waste-using-ecotoxicological-tests
#11
Pierre Hennebert
Different ecotoxicological test batteries and concentration limits have been proposed to assess the hazard property (HP) HP 14 'Ecotoxic' for waste in the European Union and its member states. In test batteries, if the concentration of waste in the culture/dilution medium producing 50% of inhibitory biological effect in one or more test(s) is below the concentration limit of the test, the waste is classified as hazardous. A summarized review of the test batteries proposed since 1998 is presented. The last proposed test battery uses seven aquatic and terrestrial species with standardized methods, but with options and uniform concentration limits of 10% of waste eluate or solid waste in the culture/dilution medium...
December 5, 2017: Waste Management
https://www.readbyqxmd.com/read/29219484/anomalous-quasiparticle-reflection-from-the-surface-of-a-3-he-4-he-dilute-solution
#12
Hiroki Ikegami, Kitak Kim, Daisuke Sato, Kimitoshi Kono, Hyoungsoon Choi, Yuriy P Monarkha
A free surface of a dilute ^{3}He-^{4}He liquid mixture is a unique system where two Fermi liquids with distinct dimensions coexist: a three-dimensional (3D) ^{3}He Fermi liquid in the bulk and a two-dimensional (2D) ^{3}He Fermi liquid at the surface. To investigate a novel effect generated by the interaction between the two Fermi liquids, the mobility of a Wigner crystal of electrons formed on the free surface of the mixture is studied. An anomalous enhancement of the mobility, compared with the case where the 3D and 2D systems do not interact with each other, is observed...
November 10, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/29217540/cancer-stem-cell-suppressing-activity-of-chrysotoxine-a-bibenzyl-from-dendrobium-pulchellum
#13
Narumol Bhummaphan, Varisa Pongrakhananon, Boonchoo Sritularak, Pithi Chanvorachote
Cancer stem cells (CSCs) have been recognized as rare populations driving cancer progression, metastasis, and drug resistance in leading cancers. Attempts have been paid toward identifying compound that specifically targets these CSCs. Therefore, the investigations of the novel therapeutic strategies for CSCs targeting is required. The cytotoxic effects of Chrysotoxine on human NSCLC-derived H460 and H23 cells were tested by MTT assay. The Effect of Chrysotoxine suppresses CSC-like phenotypes was determined in CSC-rich populations and primary CSCs in 3D culture and Extreme limiting dilution assay...
December 7, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/29216941/-impact-of-unfractionated-heparin-on-serum-and-liver-tissue-expression-of-heparanase-in-the-liver-injury-of-mice-with-sepsis
#14
Ziwei Hu, Xiaojuan Zhang, Song Chen, Ran Zhu, Xiaochun Ma
OBJECTIVE: To investigate the effect of unfractionated heparin on the expression of serum and liver tissue heparanase (HPA) in mice with liver injury induced by sepsis. METHODS: Forty-eight healthy male C57BL/6 mice aged 6-8 weeks were divided into groups according to random number table method. Twenty-four septic mice models (CLP group) were established by cecal ligation and puncture (CLP); the other 24 mice underwent sham operation (sham group), only laparotomy and abdominal closure were performed without ligation...
December 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/29216912/changes-in-salivary-oxytocin-after-inhalation-of-clary-sage-essential-oil-scent-in-term-pregnant-women-a-feasibility-pilot-study
#15
Yuriko Tadokoro, Shigeko Horiuchi, Kaori Takahata, Takuya Shuo, Erika Sawano, Kazuyuki Shinohara
OBJECTIVES: This pilot study using a quasi-experimental design was conducted to evaluate the feasibility (i.e., limited efficacy, practicality, and acceptability) of our intervention protocol involving inhalation of the scent of clary sage essential oil by pregnant women and measurement of their preinhalation and postinhalation oxytocin levels. RESULTS: Participants were women of singleton pregnancies between 38 and 40 gestation weeks (N = 11). The experiment group (n = 5) inhaled the scent of clary sage essential oil diluted 50-fold with 10 mL of odorless propylene glycol for 20 min...
December 8, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29216725/decreased-circulatory-microrna-4478-as-a-specific-biomarker-for-diagnosing-non-st-segment-elevation-myocardial-infarction-nstemi-and-its-association-with-soluble-leptin-receptor
#16
R Gholikhani-Darbroud, F Khaki-Khatibi, F Mansouri, M Hajahmadipoorrafsanjani, M Ghojazadeh
OBJECTIVE: This study aimed to assess the usefulness of circulatory microRNA-4478 (miR-4478) and soluble leptin receptor (sLEPR) in prognosis and diagnosis of non-ST-segment elevation myocardial infarction (NSTEMI) and to introduce miR-4478 as a new biomarker for NSTEMI disease. This study aimed also to examine correlation between miR-4478 and soluble leptin receptor and effects of miR-4478 on leptin receptor concentration. BACKGROUND: MicroRNAs could be used as predictive biomarkers for diseases...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/29216580/microfluidic-magnetic-fluidized-bed-for-dna-analysis-in-continuous-flow-mode
#17
Iván Hernández-Neuta, Iago Pereiro, Annika Ahlford, Davide Ferraro, Qiongdi Zhang, Jean-Louis Viovy, Stéphanie Descroix, Mats Nilsson
Magnetic solid phase substrates for biomolecule manipulation have become a valuable tool for simplification and automation of molecular biology protocols. However, the handling of magnetic particles inside microfluidic chips for miniaturized assays is often challenging due to inefficient mixing, aggregation, and the advanced instrumentation required for effective actuation. Here, we describe the use of a microfluidic magnetic fluidized bed approach that enables dynamic, highly efficient and simplified magnetic bead actuation for DNA analysis in a continuous flow platform with minimal technical requirements...
November 26, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29216539/influence-of-extracellular-environment-on-the-motility-and-structural-properties-of-spermatozoa-collected-from-hormonally-stimulated-panamanian-golden-frog-atelopus-zeteki
#18
Gina Della Togna, Brian Gratwicke, Matthew Evans, Lauren Augustine, Han Chia, Ed Bronikowski, James B Murphy, Pierre Comizzoli
A better understanding of the factors influencing the biology of amphibian spermatozoa after release from the testis is a prerequisite to the development of sperm preservation methods. The objective of the study was to determine the effect of extracellular conditions (exposure to water and different temperatures) over time on the sperm motility and structural properties (including morphology and DNA integrity) collected from hormonally stimulated Atelopus zeteki. Following intraperitoneal injection of gonadotropin-releasing hormone agonist (des-Gly10, D-Ala6, Pro-NHEt9 GnRH; 4 μg/g of body weight), human chorionic gonadotropin (hCG, 10 IU/gbw), or Amphiplex™ (0...
November 29, 2017: Theriogenology
https://www.readbyqxmd.com/read/29216427/a-novel-micro-emulsion-phase-transition-towards-the-elucidation-of-third-phase-formation-in-spent-nuclear-fuel-reprocessing
#19
Junju Mu, Ryuhei Motokawa, Kazuhiro Akutsu, Shotaro Nishitsuji, Andrew J Masters
We present evidence that the organic/third phase transition, as may be observed in the Plutonium Uranium Reduction EXtraction process (PUREX) at high metal loading, is an unusual transition between two isotropic, bi-continuous micro-emulsion phases. As this system contains so many components, however, we seek first to investigate the properties of a simpler system, viz. the related metal-free, quaternary system of water/n-dodecane/nitric acid/tri-butyl phosphate (TBP). Under appropriate conditions, this system exhibits three coexisting phases, namely the light organic phase, the third phase and the aqueous phase...
December 7, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/29215677/diabetic-rats-present-high-mean-platelet-count-in-the-presence-of-oral-infections
#20
Luciana Louzada Ferreira, João Eduardo Gomes, Dóris Hissako Sumida, Suely Regina Mogami Bonfim, Gustavo Sivieri-Araújo, Gustav Guimarães, Luciano Tavares Angelo Cintra
Platelet count is associated with inflammatory diseases like diabetes mellitus (DM), which in turn, is related in a bidirectional manner with apical periodontitis and periodontal disease. The aim of this study was to evaluate the effects of apical periodontitis and/or periodontal disease on mean platelet count in a rat model of diabetes mellitus. Eighty Wistar rats were randomly divided into 8 groups (n=10): control (C), apical periodontitis (AP), periodontal disease (PD), apical periodontitis with periodontal disease (AP-PD), diabetes mellitus (DM), diabetes mellitus with apical periodontitis (DM-AP), diabetes mellitus with periodontal disease (DM-PD) and diabetes mellitus with apical periodontitis and periodontal disease (DM-AP-PD)...
September 2017: Brazilian Dental Journal
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