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https://www.readbyqxmd.com/read/28750362/removal-behaviors-of-sulfamonomethoxine-and-its-degradation-intermediates-in-fresh-aquaculture-wastewater-using-zeolite-tio2-composites
#1
Youhei Nomura, Shuji Fukahori, Haruhisa Fukada, Taku Fujiwara
Removal efficiencies of sulfamonomethoxine (SMM) and its degradation intermediates formed by treatment with zeolite/TiO2 composites through adsorption and photocatalysis were investigated in fresh aquaculture wastewater (FAWW). Coexistent substances in the FAWW showed no inhibitory effects against SMM adsorption. Although coexistent substances in the FAWW inhibited the photocatalytic decomposition of SMM, the composites mitigated the inhibition, possibly because of concentration of SMM on their surface by adsorption...
July 14, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28750304/stability-of-benzodiazepines-in-hair-after-prolonged-exposure-to-chlorinated-water
#2
Luca Morini, Fulvia Pozzi, Angelo Groppi
INTRODUCTION: An in vitro study on authentic positive samples was carried out, aiming the evaluation of the effect of chlorinated water on benzodiazepines in hair. Two subjects exposed to chlorinated water for several consecutive times were also investigated. METHOD: Seven hair samples collected from autopsy cases, previously tested positive for benzodiazepines, were washed with dichloromethane and methanol. They were longitudinally divided in six aliquots of about 30mg...
July 14, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28750243/synthesis-and-characterization-of-fe-0-tio2-nano-composites-for-ultrasound-assisted-enhanced-catalytic-degradation-of-reactive-black-5-in-aqueous-solutions
#3
Madhumita Bhaumik, Arjun Maity, Vinod Kumar Gupta
In the present study, nanocomposites (NCs) of zero valent iron nanoparticles (Fe(0) NPs) and titanium dioxide nanoparticles (Fe(0)/TiO2 NCs) were prepared by coating Fe(0) NPs onto the surface of TiO2 NPs through borohydride reduction of Fe(II) salt for the ultrasound assisted removal/ degradation of reactive black 5 (RB5) dye from aqueous solutions. Morphological and structural characterizations of the Fe(0)/TiO2 NCs were performed by FE-SEM, HR-TEM, XRD, XPS and Brunauer-Emmett-Teller (BET) method. The Fe(0)/TiO2 NCs exhibited highly efficient ultrasonic degradation/decolourization of RB5, compared to TiO2 NPs counterpart...
July 6, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28750234/identification-of-a-novel-component-leading-to-anti-tumor-activity-besides-the-major-ingredient-cordycepin-in-cordyceps-militaris-extract
#4
Takeharu Wada, I Wayan Sumardika, Shingo Saito, I Made Winarsa Ruma, Eisaku Kondo, Masami Shibukawa, Masakiyo Sakaguchi
In accordance with our previous study that was carried out to identify novel anti-tumor ingredients, chromatographic separation in combination with an anti-tumor activity assay was used for analysis of Cordyceps militaris extract in this study. Various modes of chromatography including reversed-phase, cation-exchange and anion-exchange were used to separate components of Cordyceps militaris, which showed various chemical properties. Anti-tumor activity of each fraction was assessed by a Hoechst staining-based apoptosis assay using malignant melanoma MeWo cells...
July 19, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28750211/moxidectin-residues-in-tissues-of-lambs-submitted-to-three-endoparasite-control-programs
#5
Maria Angela Machado Fernandes, Susana Gilaverte, Michele Dell Bianchi, Claudio José Araujo da Silva, Marcelo Beltrão Molento, Felix Guillermo Reyes Reyes, Alda Lucia Gomes Monteiro
The indiscriminate and continuous use of anthelmintic drugs has promoted the selection of resistant parasites population, the presence of drug residues in food products, and heavy environmental contamination. The aim of the present study was to determine the presence of antiparasitic drug residues in 42-days old lamb serum and tissues, submitted to three endoparasite control programs: preventive treatment (PT) using moxidectin (MOX) at every 28days; selective treatment (FEC) using MOX when fecal egg count was greater than or equal to 700; and selective treatment (FMC), using MOX when FAMACHA/FMC score was 3 and above...
July 13, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28750031/dissecting-the-proteome-dynamics-of-the-salt-stress-induced-changes-in-the-leaf-of-diploid-and-autotetraploid-paulownia-fortunei
#6
Minjie Deng, Yanpeng Dong, Zhenli Zhao, Yongsheng Li, Guoqiang Fan
Exposure to high salinity can trigger acclimation in many plants. Such an adaptative response is greatly advantageous for plants and involves extensive reprogramming at the molecular level. Acclimation allows plants to survive in environments that are prone to increasing salinity. In this study, diploid and autotetraploid Paulownia fortunei seedlings were used to detect alterations in leaf proteins in plants under salt stress. Up to 152 differentially abundant proteins were identified by Multiplex run iTRAQ-based quantitative proteomic and LC-MS/MS methods...
2017: PloS One
https://www.readbyqxmd.com/read/28749998/lc-ms-ms-multiplex-analysis-of-lysosphingolipids-in-plasma-and-amniotic-fluid-a-novel-tool-for-the-screening-of-sphingolipidoses-and-niemann-pick-type-c-disease
#7
Magali Pettazzoni, Roseline Froissart, Cécile Pagan, Marie T Vanier, Séverine Ruet, Philippe Latour, Nathalie Guffon, Alain Fouilhoux, Dominique P Germain, Thierry Levade, Christine Vianey-Saban, Monique Piraud, David Cheillan
BACKGROUND: The biological diagnosis of sphingolipidoses currently relies on the measurement of specific enzymatic activities and/or genetic studies. Lysosphingolipids have recently emerged as potential biomarkers of sphingolipidoses and Niemann-Pick type C in plasma. METHODOLOGY: We developed a sensitive and specific method enabling the simultaneous quantification of lysosphingolipids by LC-MS/MS: lysoglobotriaosylceramide for Fabry disease, lysohexosylceramide (i...
2017: PloS One
https://www.readbyqxmd.com/read/28749817/prednisolone-and-prednisone-pharmacokinetics-in-pediatric-renal-transplant-recipients-a-prospective-study
#8
Ragnhild Heier Skauby, Anna Bjerre, Ingjerd Sæves, Nils Tore Vethe, Sara Bremer, Anja Svarstad, Stein Bergan
BACKGROUND: Prednisolone is a standard component of immunosuppressive protocols in renal transplantation (Tx) and despite standardized treatment regimens, adverse side effects are still frequent. The aim of this study was to characterize the pharmacokinetics of prednisolone and prednisone in pediatric renal transplant recipients in the first 52 weeks post Tx, to describe the relationship between prednisolone and prednisone, and to investigate a possible relationship between the development of new onset diabetes after Tx (NODAT) and glucocorticoid exposure...
July 26, 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28749669/thermal-degradation-of-major-gomphrenin-pigments-in-the-fruit-juice-of-basella-alba-l-malabar-spinach
#9
Agnieszka Kumorkiewicz, Slawomir Wybraniec
Generation of decarboxylated and dehydrogenated gomphrenins during heating of Basella alba L. fruit juice which contains high levels of betacyanin pigments was monitored by LC-DAD-ESI-MS/MS. The presence of principal decarboxylation products, 2-, 17- and 2,17-decarboxy-gomphrenins, their diastereomers as well as minor levels of their dehydrogenated derivatives are reported. In addition, determination of molecular masses of decarboxylated gomphrenins by high-resolution mass spectrometry (LCMS-IT-TOF) was performed...
July 27, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28749489/optimization-of-ultra-performance-liquid-chromatography-uplc-with-fluorescence-detector-fld-method-for-the-quantitative-determination-of-selected-neurotransmitters-in-rat-brain
#10
Joanna Stragierowicz, Adam Daragó, Sławomir Brzeźnicki, Anna Kilanowicz
BACKGROUND: Glutamate (Glu) and γ-aminobutyric acid (GABA) are the main neurotransmitters in the central nervous system for excitatory and inhibitory processes, respectively. Monitoring these neurotransmitters is an essential tool in establishing pathological functions, among others in terms of occupational exposure to toxic substances. MATERIAL AND METHODS: We present modification of the HPLC (high-performance liquid chromatography) to the UPLC (ultra-performance liquid chromatography) method for the simultaneous determination of glutamate and γ-aminobutyric acid in a single injection...
July 26, 2017: Medycyna Pracy
https://www.readbyqxmd.com/read/28749106/bioassay-guided-isolation-and-evaluation-of-antiproliferative-effects-of-z-ethylidene-4-6-dimethoxycoumaran-3-one-from-pogostemon-quadrifolius-benth
#11
Sanith Cheriyamundath, Rahul Raghavan, Asoke Banerji, Karel D Klika, Cornelia Ulrich, Robert W Owen, Joseph Madassery
The aim of the study was to isolate and identify the major cytotoxic principle from plant leaves of Pogostemon quadrifolius (Benth.) and evaluate its antiproliferative potential against human cancer cells. Plant leaves were extracted sequentially with a soxhlet apparatus, using petroleum ether, chloroform and methanol solvents. Petroleum ether and chloroform extracts exhibited antiproliferative properties against Caco-2, HeLa, THP-1, MCF-7 and Jurkat E6-1cancer cell lines tested, but methanol extracts failed to exhibit such activity...
July 27, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28747995/assessment-of-inhibitory-effects-on-major-human-cytochrome-p450-enzymes-by-spasmolytics-used-in-the-treatment-of-overactive-bladder-syndrome
#12
Dominik Dahlinger, Sevinc Aslan, Markus Pietsch, Sebastian Frechen, Uwe Fuhr
BACKGROUND: The objective of this study was to examine the inhibitory potential of darifenacin, fesoterodine, oxybutynin, propiverine, solifenacin, tolterodine and trospium chloride on the seven major human cytochrome P450 enzymes (CYP) by using a standardized and validated seven-in-one cytochrome P450 cocktail inhibition assay. METHODS: An in vitro cocktail of seven highly selective probe substrates was incubated with human liver microsomes and varying concentrations of the seven test compounds...
July 2017: Therapeutic Advances in Urology
https://www.readbyqxmd.com/read/28747672/fast-switching-cholesteric-liquid-crystal-optical-beam-deflector-with-polarization-independence
#13
Xiaobing Shang, Laurens Meeus, Dieter Cuypers, Herbert De Smet
Optical beam deflectors based on the combination of cholesteric liquid crystals and polymer micro gratings are reported. Dual frequency cholesteric liquid crystal (DFCh-LC) is adopted to accelerate the switching from the homeotropic state back to the planar state. Polarization independent beam steering components are realized whose transmission versus the polarizing angle only varies 4.4% and 2.6% for the planar state and the homeotropic state, respectively. A response time of 451 ms is achieved for DFCh-LC-grating beam deflectors, which is fast compared to other nematic LC beam steerers with similar LC thickness...
July 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28747585/amylolytic-fungi-in-starter-cakes-for-rice-beer-production
#14
Arup Jyoti Das, Tatsuro Miyaji, Sankar Chandra Deka
Two types of starter cakes, viz. amou and perok-kushi, used in the production of rice beer in Assam, India, by the Bodo and Deori communities, respectively, were used for the isolation of amylolytic fungi. Based on the sequencing of their internal transcribed spacer (ITS) regions the fungi were identified as Amylomyces rouxii and Rhizopus oryzae, and given the strain names TU460 and TU465, respectively. Both the strains showed the ability to degrade and saccharify starch. The glucoamylase activity was considerably high in A...
July 27, 2017: Journal of General and Applied Microbiology
https://www.readbyqxmd.com/read/28747362/alterations-of-adrenal-steroidomic-profiles-in-preterm-infants-at-birth
#15
Simon Travers, Laetitia Martinerie, Pascal Boileau, Marc Lombès, Eric Pussard
OBJECTIVE: Preterm infants have relative adrenal and kidney immaturity. Recently, we linked their urine sodium loss to a hypoaldosteronism at variance with an appropriate stimulation of the renin-angiotensin system. To investigate this defective aldosterone secretion, we analyse the biosynthesis pathways of adrenal steroids in neonates according to gestational age (GA). DESIGN: Multicentre study (Premaldo) including 152 neonates classified into three groups: group 1 (very preterm (VPT)): <33 ‰gestational weeks (GW); group 2 (preterm (PT)): 33-36 GW and group 3 (term (T)): ≥37 GW...
July 26, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28747007/ozone-pretreatment-of-process-waste-water-generated-in-course-of-fluoroquinolone-production
#16
Fares Daoud, David Pelzer, Sebastian Zuehlke, Michael Spiteller, Oliver Kayser
During production of active pharmaceutical ingredients, process waste water is generated at several stages of manufacturing. Whenever possible, the resulting waste water will be processed by conventional waste water treatment plants. Currently, incineration of the process waste water is the method to eliminate compounds with high biological activity. Thus, ozone treatment followed by biological waste water treatment was tested as an alternative method. Two prominent representatives of the large group of fluoroquinolone antibiotics (ciprofloxacin and moxifloxacin) were investigated, focussing on waste water of the bulk production...
July 12, 2017: Chemosphere
https://www.readbyqxmd.com/read/28746861/investigation-of-the-inhibitory-potential-of-phospholipase-a2-inhibitor-gamma-from-sinonatrix-annularis-to-snake-envenomation
#17
Shengwei Xiong, Yunyun Luo, Lipeng Zhong, Huixiang Xiao, Hong Pan, Keren Liao, Mengxue Yang, Chunhong Huang
SaPLIγ is a novel gamma phospholipase A2 inhibitor (PLI) recently isolated from Sinonatrix annularis, a Chinese endemic non-venomous snake. To explore the neutralization effects of saPLIγ in snakebite envenomation, a dose equivalent to LD50 of Deinagkistrodon acutus, Agkistrodon halys and Naja atra venom with/without saPLIγ was inoculated into the gastrocnemius muscle of female Kunming mice. The ability of saPLIγ to inhibit myonecrosis and systemic toxicity were evaluated through investigations of muscle histopathology, and determination of the serum levels of creatine kinase (CK), lactate dehydrogenase isoenzyme1 (LDH1) and aspartate transferase (AST)...
July 23, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28746361/identification-of-transcriptional-biomarkers-by-rna-sequencing-for-improved-detection-of-%C3%AE-2-agonists-abuse-in-goat-skeletal-muscle
#18
Luyao Zhao, Shuming Yang, Yongyou Cheng, Can Hou, Xinyong You, Jie Zhao, Ying Zhang, Wenjing He
In this paper, high-throughput RNA-sequencing (RNA-seq) was used to search for transcriptional biomarkers for β2-agonists. In combination with drug mechanisms, a smaller group of genes with higher detection accuracy was screened out. Unknown samples were first predicted by this group of genes, and liquid chromatograph tandem mass spectrometer (LC-MS/MS) was applied to positive samples to validate the biomarkers. The results of principal component analysis (PCA), hierarchical cluster analysis (HCA) and discriminant analysis (DA) indicated that the eight genes screened by high-throughput RNA-seq were able to distinguish samples in the experimental group and control group...
2017: PloS One
https://www.readbyqxmd.com/read/28745825/salmonella-choleraesuis-outer-membrane-vesicles-proteomics-and-immunogenicity
#19
Qiong Liu, Jie Yi, Kang Liang, Xiangmin Zhang, Qing Liu
Salmonella enterica serotype Choleraesuis (S. Choleraesuis), Gram-negative facultative intracellular pathogen is capable of inducing the cholera in pigs whose symptoms manifest as fever, depression, septicemia, arthritis, and diarrhea. Infections with S. Choleraesuis has resulted in great economic loss for the swine breeding operations. Bacterial outer membrane vesicles (OMVs) play an important role in pathogenicity and host-pathogen interaction. In this study, we purified OMVs released by S. Choleraesuis strain χ3545 and characterized their lipopolysaccharide (LPS) profile...
July 26, 2017: Journal of Basic Microbiology
https://www.readbyqxmd.com/read/28745761/study-of-the-simulated-sunlight-photolysis-mechanism-of-ketoprofen-the-role-of-superoxide-anion-radicals-transformation-byproducts-and-ecotoxicity-assessment
#20
Yingfei Wang, Wen Deng, Fengliang Wang, Yuehan Su, Yiping Feng, Ping Chen, Jingshuai Ma, Haiying Su, Kun Yao, Yang Liu, Wenying Lv, Guoguang Liu
The aim of this study was to investigate the photolysis mechanism of ketoprofen (KET) under simulated sunlight. The results demonstrated that the photolysis of KET aligned well with pseudo first-order kinetics. Radical scavenging experiments and dissolved oxygen experiments revealed that the superoxide anion radical (O2˙(-)) played a primary role in the photolytic process in pure water. Bicarbonate slightly increased the photodegradation of KET through generating carbonate radicals, while DOM inhibited the photolysis via both attenuating light and competing radicals...
July 26, 2017: Environmental Science. Processes & Impacts
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