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https://www.readbyqxmd.com/read/28314147/boron-doped-diamond-electrode-preparation-characterization-and-application-for-electrocatalytic-degradation-of-m-dinitrobenzene
#1
Hongmei Bai, Ping He, Jing Pan, Jingchao Chen, Yang Chen, Faqing Dong, Hong Li
Boron-doped diamond (BDD) electrode was successfully prepared via microwave plasma chemical vapor deposition method and it was used in electrocatalytic degradation of m-dinitrobenzene (m-DNB). The electrocatalytic degradation efficiency of m-DNB was evaluated under different experimental parameters including current density, temperature, pH, Na2SO4 concentration and initial m-DNB concentration. Under optimal parameters, degradation efficiency of m-DNB reached up to 82.7% after 150min. The degradation process of m-DNB was fitted well with pseudo first-order kinetics...
July 1, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28299268/role-of-addition-of-dexamethasone-to-lignocaine-2-with-adrenaline-in-dental-nerve-blocks-for-third-molar-surgery-a-prospective-randomized-control-trial
#2
Saroj Prasad Deo
CONTEXT: Dexamethasone has been frequently used in oral surgical procedure and accepted by oral and maxillofacial surgeon community worldwide. However, this is the first clinical trial that used dexamethasone as adjuvant with lignocaine in dental nerve block (DNB). AIMS: The purpose of this double-blind, randomized control trial (RCT) was to compare the effect of dexamethasone with normal saline (NS) in a lignocaine DNB. SETTINGS AND DESIGN: This prospective, double-blind, RCT was carried out after obtaining approval from the Institutional Ethical Committee...
July 2016: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28293816/triphenylbenzene-sensor-for-selective-detection-of-picric-acid
#3
S Nagendran, Pratap Vishnoi, Ramaswamy Murugavel
A C 3-symmetric triphenylbenzene based photoluminescent compound, 1,3,5-tris(4'-(N-methylamino)phenyl) benzene ([NHMe]3TAPB), has been synthesized by mono-N-methylation of 1,3,5-tris(4'-aminophenyl) benzene (TAPB) and structurally characterized. [NHMe]3TAPB acts as a selective fluorescent sensor for picric acid (PA) with a detection limit as low as 2.25 ppm at a signal to noise ratio of 3. Other related analytes (i.e. TNT, DNT and DNB) show very little effect on the fluorescence intensity of [NHMe]3TAPB. The selectivity is triggered by proton transfer from picric acid to the fluorophore and ground-state complex formation between the protonated fluorophore and picrate anion through hydrogen bonding interactions...
March 14, 2017: Journal of Fluorescence
https://www.readbyqxmd.com/read/28126659/molecular-engineering-of-a-mitochondrial-targeting-two-photon-in-and-near-infrared-out-fluorescent-probe-for-gaseous-signal-molecules-h2s-in-deep-tissue-bioimaging
#4
Liyi Zhou, Danqing Lu, Qianqian Wang, Sihua Liu, Qinlu Lin, Hongyan Sun
Hydrogen sulfide (H2S), one of the biologically important gaseous signal molecules, plays an essential role in diverse normal biochemical functions and pathological processes. Herein, an efficient two-photon in and near-infrared out mitochondria-targeting dye has been designed, synthesized and characterized. It is easily synthesized by the condensation reaction (C˭C) of 4-hydroxybenzaldehyde and 6-(diethylamino)-1,2,3,4-tetrahydroxanthylium (mitochondria-targeting), which possesses large two-photon action absorption cross-section ~160g and high fluorescence quantum yield ~0...
May 15, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28053822/bulbocavernosus-reflex-test-for-diagnosis-of-pudendal-nerve-injury-in-female-patients-with-diabetic-neurogenic-bladder
#5
Xiaoting Niu, Xun Wang, Huanjie Huang, Peiqi Ni, Yuanshao Lin, Bei Shao
The study was designed to investigate the clinical application and significance of the bulbocavernosus reflex (BCR) test for diagnosing diabetic neurogenic bladder (DNB) in female subjects. In this study, 68 female patients with DNB and 40 female normal controls were subjected to a nerve conduction study (NCS) of all four limbs and the BCR test. The data were analyzed and compared, and the corresponding diagnostic sensitivities were discussed. Mean BCR latency for female DNB patients was significantly prolonged, compared to that of the control group, suggesting pudendal nerve injuries in female DNB patients...
December 2016: Aging and Disease
https://www.readbyqxmd.com/read/28027290/single-cell-based-analysis-highlights-a-surge-in-cell-to-cell-molecular-variability-preceding-irreversible-commitment-in-a-differentiation-process
#6
Angélique Richard, Loïs Boullu, Ulysse Herbach, Arnaud Bonnafoux, Valérie Morin, Elodie Vallin, Anissa Guillemin, Nan Papili Gao, Rudiyanto Gunawan, Jérémie Cosette, Ophélie Arnaud, Jean-Jacques Kupiec, Thibault Espinasse, Sandrine Gonin-Giraud, Olivier Gandrillon
In some recent studies, a view emerged that stochastic dynamics governing the switching of cells from one differentiation state to another could be characterized by a peak in gene expression variability at the point of fate commitment. We have tested this hypothesis at the single-cell level by analyzing primary chicken erythroid progenitors through their differentiation process and measuring the expression of selected genes at six sequential time-points after induction of differentiation. In contrast to population-based expression data, single-cell gene expression data revealed a high cell-to-cell variability, which was masked by averaging...
December 2016: PLoS Biology
https://www.readbyqxmd.com/read/27994529/anti-d-antibodies-in-pregnant-d-variant-antigen-carriers-initially-typed-as-rhd
#7
Jelena Lukacevic Krstic, Slavica Dajak, Jasna Bingulac-Popovic, Vesna Dogic, Jela Mratinovic-Mikulandra
BACKGROUND: To evaluate the incidence, the consequences, and the prevention strategy of anti-D alloimmunizations of D variant carriers in the obstetric population of Split-Dalmatia County, Croatia. METHODS: RhD immunization events were evaluated retrospectively for the period between 1993 and 2012. Women were tested for RhD antigen and irregular antibodies. Those with anti-D antibody who were not serologically D- were genotyped for RHD. They were evaluated for their obstetric and transfusion history and their titer of anti-D...
November 2016: Transfusion Medicine and Hemotherapy
https://www.readbyqxmd.com/read/27987439/barriers-to-management-of-tree-diseases-framing-perspectives-of-pinewood-managers-around-dothistroma-needle-blight
#8
Mariella Marzano, Lauren Fuller, Christopher P Quine
Forest Managers in the UK and elsewhere are facing new threats such as climate change and novel pests and diseases. Strategies seek to coordinate and steer appropriate responses through raising awareness and encouraging action but little is known about how individual managers respond to disease threats. We studied how managers have responded to the threat of Dothistroma Needle Blight (DNB), a disease which can affect growth and cause mortality of many pine species, and the key frames influencing their responses...
March 1, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/27815138/pharmaceutical-salts-of-ethionamide-with-gras-counter-ion-donors-to-enhance-the-solubility
#9
Sunil Kumar Nechipadappu, Darshak R Trivedi
Pharmaceutical salts of BCS class II second line anti-tuberculosis drug ethionamide (ETH) with various counter ions namely, 2-chloro-4-nitrobenzoic acid (CNB), 2,6-dihydroxybenzoic acid (2,6HBA), 2,3-dihydroxybenzoic acid (2,3HBA) and 2,4-dinitrobenzoic acid (DNB) were synthesized by crystal engineering approach. All the synthesized salts were characterized by various spectroscopic (NMR, FT-IR,), thermal (DSC & TGA) and PXRD techniques. The crystal structure of the synthesized salts was determined by single-crystal X-ray diffraction techniques...
January 1, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27730795/do-legal-issues-deserve-space-in-specialty-medical-journals
#10
Neeraj Nagpal
Physicians and Internists in India have tended to brush under the carpet legal issues affecting their profession. Of concern to all Physicians is the judgment in a recent case where the NCDRC has stated that if MD Medicine Physicians write Physician & Cardiologist on their letterhead it is Quackery. What is MD Medicine degree holder in India qualified and trained to treat ? These are issues which need debate and that can only be initiated once we recognize that there is a problem. Either an MD Medicine is a cardiologist or he is not...
February 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27705834/1-3-dinitrobenzene-reductive-degradation-by-alkaline-ascorbic-acid-reaction-mechanisms-degradation-pathways-and-reagent-optimization
#11
Chiya Ciou, Chenju Liang
Nitro-aromatic compounds (NACs) such as 1,3-dinitrobenzene (1,3-DNB) contain the nitrogroup (-NO2), in which the N with a +III oxidation state accepts electrons. Water soluble ascorbic acid (AsA) at elevated pH produces electron transfer and governs the electron-donating pathway. The influence of the NaOH/AsA molar ratio on the degradation of 1,3-DNB was investigated. Using 0.21-2 M NaOH and 20-100 mM AsA, nearly complete 1,3-DNB removals (90-100%) were achieved within 0.5 h. On the basis of intermediates identified using GC/MS, the reduction pathways of 1,3-DNB can be categorized into step-by-step electron transfer, and condensation routes...
January 2017: Chemosphere
https://www.readbyqxmd.com/read/27606006/has-scots-pine-pinus-sylvestris-co-evolved-with-dothistroma-septosporum-in-scotland-evidence-for-spatial-heterogeneity-in-the-susceptibility-of-native-provenances
#12
Annika Perry, Anna V Brown, Stephen Cavers, Joan E Cottrell, Richard A Ennos
Spatial heterogeneity in pathogen pressure leads to genetic variation in, and evolution of, disease-related traits among host populations. In contrast, hosts are expected to be highly susceptible to exotic pathogens as there has been no evolution of defence responses. Host response to pathogens can therefore be an indicator of a novel or endemic pathosystem. Currently, the most significant threat to native British Scots pine (Pinus sylvestris) forests is Dothistroma needle blight (DNB) caused by the foliar pathogen Dothistroma septosporum which is presumed to be exotic...
September 2016: Evolutionary Applications
https://www.readbyqxmd.com/read/27587900/substantial-heritable-variation-for-susceptibility-to-dothistroma-septosporum-within-populations-of-native-british-scots-pine-pinus-sylvestris
#13
A Perry, W Wachowiak, A V Brown, R A Ennos, J E Cottrell, S Cavers
The threat from pests and pathogens to native and commercially planted forest trees is unprecedented and expected to increase under climate change. The degree to which forests respond to threats from pathogens depends on their adaptive capacity, which is determined largely by genetically controlled variation in susceptibility of the individual trees within them and the heritability and evolvability of this trait. The most significant current threat to the economically and ecologically important species Scots pine (Pinus sylvestris) is dothistroma needle blight (DNB), caused by the foliar pathogen Dothistroma septosporum...
August 2016: Plant Pathology
https://www.readbyqxmd.com/read/27500422/two-polymorphic-forms-of-a-six-coordinate-mononuclear-cobalt-ii-complex-with-easy-plane-anisotropy-structural-features-theoretical-calculations-and-field-induced-slow-relaxation-of-the-magnetization
#14
Subhadip Roy, Itziar Oyarzabal, Julia Vallejo, Joan Cano, Enrique Colacio, Antonio Bauza, Antonio Frontera, Alexander M Kirillov, Michael G B Drew, Subrata Das
A mononuclear cobalt(II) complex [Co(3,5-dnb)2(py)2(H2O)2] {3,5-Hdnb = 3,5-dinitrobenzoic acid; py = pyridine} was isolated in two polymorphs, in space groups C2/c (1) and P21/c (2). Single-crystal X-ray diffraction analyses reveal that 1 and 2 are not isostructural in spite of having equal formulas and ligand connectivity. In both structures, the Co(II) centers adopt octahedral {CoN2O4} geometries filled by pairs of mutually trans terminal 3,5-dnb, py, and water ligands. However, the structures of 1 and 2 disclose distinct packing patterns driven by strong intermolecular O-H···O hydrogen bonds, leading to their 0D→2D (1) or 0D→1D (2) extension...
September 6, 2016: Inorganic Chemistry
https://www.readbyqxmd.com/read/27399273/lysine-specific-proteolytic-activity-responsible-for-forsythia-detaching-factor-modification
#15
Hidetomo Onishi, Munehiko Ro, Takafumi Suzuki, Makiko Ishii, Hideharu Otsuka, Kazuhiro Yatabe, Joichiro Hayashi, Junichi Tatsumi, Kitetsu Shin
OBJECTIVES: The objective of the present study was to clarify the lysine-specific proteolytic activity derived from periodontal pathogens responsible for Forsythia detaching factor (FDF) modification. DESIGN: The activity responsible for FDF modification in Tannerella forsythia and Porphyromonas gingivalis were evaluated by colorimetric assay using Ac-Arg-Ala-Lys-p-nitroaniline as a substrate. FDF modification in T. forsythia and P. gingivalis were evaluated by Western blotting using recombinant FDF (rFDF) as a substrate...
November 2016: Archives of Oral Biology
https://www.readbyqxmd.com/read/26993042/discovering-a-critical-transition-state-from-nonalcoholic-hepatosteatosis-to-nonalcoholic-steatohepatitis-by-lipidomics-and-dynamical-network-biomarkers
#16
Rina Sa, Wanwei Zhang, Jing Ge, Xinben Wei, Yunhua Zhou, David R Landzberg, Zhenzhen Wang, Xianlin Han, Luonan Chen, Huiyong Yin
Nonalcoholic fatty liver disease (NAFLD) is a major risk factor for type 2 diabetes and metabolic syndrome. However, accurately differentiating nonalcoholic steatohepatitis (NASH) from hepatosteatosis remains a clinical challenge. We identified a critical transition stage (termed pre-NASH) during the progression from hepatosteatosis to NASH in a mouse model of high fat-induced NAFLD, using lipidomics and a mathematical model termed dynamic network biomarkers (DNB). Different from the conventional biomarker approach based on the abundance of molecular expressions, the DNB model exploits collective fluctuations and correlations of different metabolites at a network level...
June 2016: Journal of Molecular Cell Biology
https://www.readbyqxmd.com/read/26936406/an-electrochemical-sensor-for-nitrobenzene-using-%C3%AF-conjugated-polymer-embedded-nanosilver
#17
Victor M Kariuki, Sohaib A Fasih-Ahmad, Francis J Osonga, Omowunmi A Sadik
A novel electrochemical sensing platform for nitrobenzene has been developed using silver nanoparticles (AgNPs) embedded in the poly(amic) acid (PAA) polymer matrix (PAA-AgNPs). PAA was synthesized via the polycondensation reaction of para-phenylenediamine and benzene-1,2,4,5-tetracarboxylic dianhydride. PAA-AgNP nanocomposites were synthesized by the in situ reduction of a silver precursor by the polymer at room temperature in a one-step approach without using an extraneous reducing or capping agent. The composite was subsequently characterized in solution and as a thin film...
April 7, 2016: Analyst
https://www.readbyqxmd.com/read/26906975/using-multi-objective-optimization-to-identify-dynamical-network-biomarkers-as-early-warning-signals-of-complex-diseases
#18
Fatemeh Vafaee
Biomarkers have gained immense scientific interest and clinical value in the practice of medicine. With unprecedented advances in high-throughput technologies, research interest in identifying novel and customized disease biomarkers for early detection, diagnosis, or drug responses is rapidly growing. Biomarkers can be identified in different levels of molecular biomarkers, networks biomarkers and dynamical network biomarkers (DNBs). The latter is a recently developed concept which relies on the idea that a cell is a complex system whose behavior is emerged from interplay of various molecules, and this network of molecules dynamically changes over time...
February 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/26884655/an-analysis-of-the-origins-subjects-and-awards-received-for-presentations-at-the-annual-iasg-conferences-2009-2013
#19
Subhash Soni, Peush Sahni, Samiran Nundy
s presented at scientific meetings are important for making ongoing research more widely known and may also reflect the quality of the parent institution's standard of patient care. We analyzed the abstracts presented at the annual meetings of IASG for the past 5 years for (i) medium of presentation (oral/poster/videos), (ii) subjects discussed, (iii) institution of origin, (iv) whether a prospective/ retrospective study or a case report, (v) changing trends, and (vi) awards received. Of the 1340 abstracts analyzed, there were 18...
December 2015: Indian Journal of Surgery
https://www.readbyqxmd.com/read/26878937/visible-light-controlled-nitric-oxide-release-from-hindered-nitrobenzene-derivatives-for-specific-modulation-of-mitochondrial-dynamics
#20
Kai Kitamura, Mitsuyasu Kawaguchi, Naoya Ieda, Naoki Miyata, Hidehiko Nakagawa
Nitric oxide (NO) is a physiological signaling molecule, whose biological production is precisely regulated at the subcellular level. Here, we describe the design, synthesis, and evaluation of novel mitochondria-targeted NO releasers, Rol-DNB-mor and Rol-DNB-pyr, that are photocontrollable not only in the UV wavelength range but also in the biologically favorable visible wavelength range (530-590 nm). These caged NO compounds consist of a hindered nitrobenzene as the NO-releasing moiety and a rhodamine chromophore...
May 20, 2016: ACS Chemical Biology
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