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https://www.readbyqxmd.com/read/28431455/uhplc-q-tof-ms-ms-based-screening-and-characterization-of-metabolites-of-cnidilin-in-human-liver-microsomes
#1
Lin Yuan, Yuqian Zhang, Man Liao, Yanyan Liu, Changchen Wan, Lantong Zhang
Cnidilin is an active natural furocoumarin ingredient originating from well-known traditional Chinese medicine Radix Angelicae dahuricae. In the present study, an efficient approach was developed for the screening and identification of cnidilin metabolites using ultra-high performance liquid chromatography coupled to quadrupole time-of-flight mass spectrometry. In this approach, an on-line data acquisition method multiple mass defect filter (MMDF) combined with dynamic background subtraction was developed to trace all probable metabolites...
April 21, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28431429/it-takes-a-village-to-deliver-effective-and-efficient-care-team-based-performance
#2
Katherine A Meese, Nancy M Borkowski
No abstract text is available yet for this article.
May 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28431407/prognositic-value-of-cd73-adenosinergic-pathway-in-solid-tumor-a-meta-analysis-and-systematic-review
#3
Rong Wang, Yingying Zhang, Xia Lin, Yalin Gao, Ying Zhu
CD73 is a glycosylphosphatidylinositol (GPI) anchored cell surface protein that is encoded by NT5E gene, plays multiple roles in tumor processes. Previous studies have presented a potential value of CD73 served as a detectable biomarker for prognosis of several solid tumors, but the results were more controversially. A comprehensive meta-analysis was conducted to precisely evaluate the prognostic role of CD73 in solid tumors. The included studies were searched in PubMed, Web of Science and EBSCO from Jan 1990 to Jan 2016...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28431372/down-flow-fixed-structured-bed-reactor-an-innovative-reactor-configuration-applied-to-acid-mine-drainage-treatment-and-metal-recovery
#4
Leandro Augusto Gouvêa de Godoi, Eugenio Foresti, Márcia Helena Rissato Zamariolli Damianovic
A down-flow fixed-structured bed reactor (DFSBR) was operated for 277 days treating a mixture of synthetic substrates simulating an iron-rich acid mine drainage (AMD) and the soluble fraction of a sugarcane vinasse. The synthetic sugarcane vinasse was used as electron donor for biological sulfate-reduction, resulting in influent chemical oxygen demand (COD) close to 4000 mg L(-1) and volumetric organic loading rate of 4.8 g L(-1)d(-1). The influent sulfate concentration was kept close to 2000 mg L(-1) (volumetric sulfate loading rate of 2...
April 17, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28431348/evaluation-of-structural-effects-on-the-flocculation-performance-of-a-co-graft-starch-based-flocculant
#5
Zhouzhou Liu, Hua Wei, Aimin Li, Hu Yang
The molecular structure of a material substantially determines its final application performance. In this work, a series of starch-based flocculants with different charge densities and average graft chain lengths were prepared by the co-graft polymerization of acrylamide and [(2-methacryloyloxyethyl) trimethyl ammonium chloride] (St-g-PAM-co-PDMC). The flocculation performance of St-g-PAM-co-PDMC was studied systematically at neutral pH using kaolin suspension and sodium humate (NaHA) aqueous solution as synthetic wastewaters...
April 18, 2017: Water Research
https://www.readbyqxmd.com/read/28431343/measurement-of-physical-activity-levels-in-the-intensive-care-unit-and-functional-outcomes-an-observational-study
#6
Lisa J Beach, Kate Fetterplace, Lara Edbrooke, Selina M Parry, Rachel Curtis, Thomas Rechnitzer, Sue Berney, Linda Denehy
PURPOSE: Primary aims were: (1) objectively quantify levels of physical activity with the sensewear armband mini-fly motion sensor (SWA-MF), (2) evaluate the correlation of SWA-MF measurement of active and resting energy expenditure against the ICU Mobility scale (IMS) and indirect calorimetry respectively. MATERIALS AND METHODS: Adults mechanically ventilated ≥48h and anticipated to remain in ICU≥5days were included. Physical activity (PA) was measured using a SWA-MF (over the first five days); energy expenditure was measured with both the SWA-MF and the Deltatrac II metabolic cart on day three; highest level of mobility was assessed on the IMS...
April 7, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28431330/gas-forming-liposomes-prepared-using-a-liposomal-magnetoporation-method
#7
Jae Min Lee, Dong Sup Kwag, Yu Seok Youn, Eun Seong Lee
In this study, we report a gas-forming drug carrier engineered using the liposomal magnetoporation method. The liposomes that were magnetoporated under a magnetic shear stress possessed an opened lipid bilayer hole. A photosensitizing model drug (chlorin e6: Ce6) and 1H-1H-2H-perfluoro-1-hexene (PFH, as a volatile gas-forming agent) were efficiently loaded into the opened holes of the magnetoporated liposomes. PFH in the liposomes is vaporized at 50°C and can initiate liposome destabilization. The experimental results demonstrated that the liposomes were destabilized at 50°C efficiently released Ce6 and enhanced Ce6-mediated phototoxicity against KB tumor cells...
April 12, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28431327/dendrimer-conjugated-iron-oxide-nanoparticles-as-stimuli-responsive-drug-carriers-for-thermally-activated-chemotherapy-of-cancer
#8
Saumya Nigam, Dhirendra Bahadur
In recent years, functional nanomaterials have found an appreciable place in the understanding and treatment of cancer. This work demonstrates the fabrication and characterization of a new class of cationic, biocompatible, peptide dendrimers, which were then used for stabilizing and functionalizing magnetite nanoparticles for combinatorial therapy of cancer. The synthesized peptide dendrimers have an edge over the widely used PAMAM dendrimers due to better biocompatibility and negligible cytotoxicity of their degradation products...
April 13, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28431324/achievable-separation-performance-and-analysis-time-in-current-liquid-chromatographic-practice-for-monoclonal-antibody-separations
#9
Szabolcs Fekete, Jean-Luc Veuthey, Davy Guillarme
The separation performance of a chromatographic system is often described in terms of column efficiency and peak capacity. Thanks to the new developments in column technology over the past few years, the achievable peak capacity drastically improved and the analysis time can be significantly shortened. Indeed, highly efficient wide-pore reversed-phase (RPLC) materials packed with small fully porous and superficially porous particles can be successfully used for the analytical characterization of therapeutic proteins...
April 12, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28431297/nano-zirconia-evaluation-of-its-antioxidant-and-anticancer-activity
#10
Siripireddy Balaji, Badal Kumar Mandal, Shivendu Ranjan, Nandita Dasgupta, Ramalingam Chidambaram
Bioactivity of nanomaterials largely depends on its size, shape and crystalline nature. In this work, the smaller sized spherical shaped nano-zirconia (ZrO2 NPs) (of ~9 to 11nm) was fabricated and studied its biological activity especially antioxidant and cytotoxicity against human colon carcinoma (HCT-116) and human lung carcinoma (A-549) cell lines. To have its real applications in biological aspects readily available Eucalyptus globulus (E. globulus) leaf extract was used as an effective capping and reducing agent for its synthesis...
April 8, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28431281/dengue-virus-replicates-and-accumulates-in-aedes-aegypti-salivary-glands
#11
Vincent Raquin, Louis Lambrechts
Dengue virus (DENV) is an RNA virus transmitted among humans by mosquito vectors, mainly Aedes aegypti. DENV transmission requires viral dissemination from the mosquito midgut to the salivary glands. During this process the virus undergoes several population bottlenecks, which are stochastic reductions in population size that restrict intra-host viral genetic diversity and limit the efficiency of natural selection. Despite the implications for virus transmission and evolution, DENV replication in salivary glands has not been directly demonstrated...
April 18, 2017: Virology
https://www.readbyqxmd.com/read/28431235/improving-surgeons-comfort-with-prismatic-glasses-during-cleft-palate-surgery-preliminary-findings
#12
Hai Kuang, Guosheng Chen, Qitao Wen, Shuai Li, Lei Che, Feixin Liang
PURPOSE: We aimed to observe the effect of prismatic glasses on improving surgeons' comfort during cleft palate surgery. MATERIALS AND METHODS: A within-subjects design was used. We included 3 oral-maxillofacial surgeons and 6 patients with complete cleft palate in the study. One group of cleft palate patients (3 complete cleft palates) was allocated to each of the 3 surgeons not wearing prismatic glasses, and another similar group of cleft palate patients was allocated to the same 3 surgeons wearing prismatic glasses...
March 27, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28431226/the-impact-of-automatic-devices-for-capillary-blood-collection-on-efficiency-and-pain-response-in-newborns-a-randomized-controlled-trial
#13
G Sorrentino, M Fumagalli, S Milani, I Cortinovis, A Zorz, G Cavallaro, F Mosca, L Plevani
BACKGROUND: The heel stick is the method of choice in most neonatal units for capillary blood sampling, and it represents the most common event among all painful procedures performed on newborns. The type and design of heel stick device and the clinical procedure to collect a blood sample may have an impact on newborn pain response as well. OBJECTIVE: To compare the pain response and efficiency of different automated devices for capillary blood collection in newborns...
April 11, 2017: International Journal of Nursing Studies
https://www.readbyqxmd.com/read/28431217/reduced-graphene-oxide-as-an-effective-adsorbent-for-removal-of-malachite-green-dye-plausible-adsorption-pathways
#14
Kanika Gupta, Om P Khatri
Efficient removal of malachite green (MG) dye from simulated wastewater is demonstrated using high surface area reduced graphene oxide (rGO). The plausible interaction pathways between MG dye and rGO are deduced from nanostructural features (HRTEM) of rGO and spectroscopic analyses (FTIR and Raman). The high surface area (931m(2)⋅gm(-1)) of rGO, π-π interaction between the aromatic rings of MG dye and graphitic skeleton, and electrostatic interaction of cationic centre of MG dye with π-electron clouds and negatively charged residual oxygen functionalities of rGO collectively facilitate the adsorption of MG dye on the rGO...
April 12, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28431207/syntheses-of-chroman-2-ones-and-%C3%AE-amino-acids-through-a-diastereoselective-domino-reaction
#15
D Balaji Chandrasekhar, Shwu-Chen Tsay, Tapan K Pradhan, Jih Ru Hwu
Many 3-aminochroman-2-ones and β,β-diarylalanines exhibit significant biological activities. A new method was thus developed for the syntheses of these compounds with high efficiency and diastereoselectivity. First, treatment of various phenols with Erlenmeyer-Plochl (Z)-azlactones and AlCl3 in toluene produced the desired cis-3-aminochroman-2-ones in 65-90% yields under kinetic control. This coupling reaction involved a domino process of Friedel-Crafts alkylation, 1,4-AlCl3 shift, transesterification, and protodealumination in a "single-flask...
April 21, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28431206/phase-transfer-ligand-exchange-of-lead-chalcogenide-quantum-dots-for-direct-deposition-of-thick-highly-conductive-films
#16
Qianglu Lin, Hyeong Jin Yun, Wenyong Liu, Hyung-Jun Song, Nikolay S Makarov, Oleksandr Isaienko, Tom Nakotte, Gen Chen, Hongmei Luo, Victor I Klimov, Jeffrey M Pietryga
The use of semiconductor nanocrystal quantum dots (QDs) in optoelectronic devices typically requires post-synthetic chemical surface treatments to enhance electronic coupling between QDs and allow for efficient charge transport in QD films. Despite their importance to solar cells, and infrared (IR) light-emitting diodes and photodetectors, advances in these chemical treatments for lead chalcogenide (PbE, E = S, Se, Te) QDs have lagged behind those of, for instance, II-VI semiconductor QDs. Here, we introduce a method for fast and effective ligand exchange for PbE QDs in solution, resulting in QDs completely passivated by a wide range of small anionic ligands...
April 21, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28431172/quantitative-analysis-of-li-distributions-in-battery-material-li1-xfepo4-using-fe-m2-3-edge-and-valence-electron-energy-loss-spectra
#17
Shunsuke Kobayashi, Craig A J Fisher, Akihide Kuwabara, Yoshio Ukyo, Yuichi Ikuhara
The spatial distribution of Li ions in a lithium iron phosphate (Li1-xFePO4) single crystal after chemical delithiation is quantitatively investigated using Fe M2,3-edge and valence electron energy loss (EEL) spectroscopy techniques. Li contents between those of end-member compositions LiFePO4 and FePO4 are found to correspond to reproducible changes in Fe M2,3-edge and valence EEL spectra across an interface between LiFePO4 and FePO4 regions. Quantitative analysis of these changes is used to estimate the local valence states of Fe ions, from which the Li concentration in the intermediate phase can be deduced...
April 18, 2017: Microscopy
https://www.readbyqxmd.com/read/28431158/effects-of-supplementation-level-and-feeding-schedule-of-butyrate-glycerides-on-the-growth-performance-and-carcass-composition-of-broiler-chickens
#18
A Bedford, H Yu, E J Squires, S Leeson, J Gong
Mixed mono- and tributyrate glycerides have been used for effective delivery of butyrate to the gut to benefit broilers. However, limited information is available on the efficacy of butyrate glycerides individually and in combination with different levels and feeding schedules. The present study has first investigated the effects of monobutyrin at inclusion levels of zero, 500, 1,000, 2,000, and 3,000 ppm on the performance of broilers, and second, the effects of its combination with tributyrin. In the monobutyrin trial, there were no overall significant differences in average daily gain or feed efficiency...
April 20, 2017: Poultry Science
https://www.readbyqxmd.com/read/28431122/the-sense-study-treatment-mechanisms-of-a-cognitive-behavioral-and-mindfulness-based-group-sleep-improvement-intervention-for-at-risk-adolescents
#19
Matthew Blake, Orli Schwartz, Joanna M Waloszek, Monika Raniti, Julian G Simmons, Greg Murray, Laura Blake, Ronald E Dahl, Richard Bootzin, Dana L McMakin, Paul Dudgeon, John Trinder, Nicholas B Allen
Objective: The aim of this study was to test whether a cognitive-behavioral and mindfulness-based sleep intervention could improve sleep and anxiety on school nights in a group of at-risk adolescents. We also examined whether benefits to sleep and anxiety would be mediated by improvements in sleep hygiene awareness and pre-sleep hyperarousal. Method: Secondary analysis of a randomized controlled trial conducted with 123 adolescent participants (Female=60%; Mean Age=14...
April 18, 2017: Sleep
https://www.readbyqxmd.com/read/28431095/avi-lution%C3%A2-supplemented-at-1-0-or-2-0%C3%A2-g-kg-in-feed-improves-the-growth-performance-of-broiler-chickens-during-challenge-with-bacitracin-resistant-clostridium-perfringens
#20
L A Krueger, D A Spangler, D R Vandermyde, M D Sims, G A Ayangbile
Avi-Lution® is a defined, patented, synbiotic product containing Saccharomyces cerevisiae, Enterococcus faecium, and Bacillus spp. Broiler chickens (n = 1,250) were experimentally treated as uninoculated controls (uCon), inoculated controls (iCon) with Clostridium perfringens, or inoculated and treated with bacitracin methylene disalicylate (BMD) at 55 mg/kg as an infected/treated control or Avi-Lution® at 1.0 (AvL1) or 2.0 (AvL2) g/kg in feed for 42 d. Each treatment was applied to 10 replicate pens of 25 straight-run, newly hatched chicks...
April 18, 2017: Poultry Science
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