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https://www.readbyqxmd.com/read/28340473/enantiomers-of-triclabendazole-sulfoxide-analytical-and-semipreparative-hplc-separation-absolute-configuration-assignment-and-transformation-into-sodium-salt
#1
Rosella Ferretti, Simone Carradori, Paolo Guglielmi, Marco Pierini, Adriano Casulli, Roberto Cirilli
Direct HPLC separation of the enantiomers of triclabendazole sulfoxide (TCBZ-SO), which is the main metabolite of the anthelmintic drug triclabendazole, was carried out using the polysaccharide-based Chiralpak AS-H and Chiralpak IF-3 chiral stationary phases (CSPs). The chromatographic behaviour of both CSPs was evaluated and compared using normal-phase and reversed-phase eluents at different column temperatures. The eluent mixture of n-hexane-2-propanol-trifluoroacetic acid 70:30:0.1 (v/v/v) and a column temperature of 40°C were identified as the best operational conditions to carry out semipreparative enantioseparations on a 1-cm I...
March 16, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28340418/enantioselective-reductive-transformation-of-climbazole-a-concept-towards-quantitative-biodegradation-assessment-in-anaerobic-biological-treatment-processes
#2
Monica Brienza, Serge Chiron
An efficient chiral method-based using liquid chromatography-high resolution-mass spectrometry analytical method has been validated for the determination of climbazole (CBZ) enantiomers in wastewater and sludge with quantification limits below the 1 ng/L and 2 ng/g range, respectively. On the basis of this newly developed analytical method, the stereochemistry of CBZ was investigated over time in sludge biotic and sterile batch experiments under anoxic dark and light conditions and during wastewater biological treatment by subsurface flow constructed wetlands...
March 21, 2017: Water Research
https://www.readbyqxmd.com/read/28335456/mosquito-traps-an-innovative-environmentally-friendly-technique-to-control-mosquitoes
#3
Brigitte Poulin, Gaëtan Lefebvre, Camille Muranyi-Kovacs, Samuel Hilaire
We tested the use of mosquito traps as an alternative to spraying insecticide in Camargue (France) following the significant impacts observed on the non-target fauna through Bti persistence and trophic perturbations. In a village of 600 inhabitants, 16 Techno Bam traps emitting CO₂ and using octenol lures were set from April to November 2016. Trap performance was estimated at 70% overall based on mosquitoes landing on human bait in areas with and without traps. The reduction of Ochlerotatus caspius and Oc...
March 18, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28333545/chiropody-podiatry-interprovincial-differences-in-profession-formation
#4
Tracey L Adams
The regulation of foot health care professionals varies across provinces in Canada. In Ontario, the regulated health profession is chiropody. Chiropodists are foot specialists with a limited scope of practice. In contrast, British Columbia and five other provinces regulate podiatrists, who are highly trained foot physicians with an extensive scope of practice. This article explores the history of chiropody/podiatry in Ontario and British Columbia from the early 1900s through the 1980s in order to understand how professional development in this field took such divergent paths within Canada...
March 23, 2017: Canadian Bulletin of Medical History, Bulletin Canadien D'histoire de la Médecine
https://www.readbyqxmd.com/read/28332821/chiral-plasmonic-nanochains-via-the-self-assembly-of-gold-nanorods-and-helical-glutathione-oligomers-facilitated-by-cetyltrimethylammonium-bromide-micelles
#5
Jun Lu, Yi-Xin Chang, Ning-Ning Zhang, Ying Wei, Ai-Ju Li, Jia Tai, Yao Xue, Zhao-Yi Wang, Yang Yang, Li Zhao, Zhong-Yuan Lu, Kun Liu
Gold nanorods are excellent anisotropic building blocks for plasmonic chiral nanostructures. The near-infrared plasmonic band of nanorods makes them highly desirable for biomedical applications such as chiral bioimaging and sensing, in which a strong circular dichroism (CD) signal is required. Chiral assemblies of gold nanorods induced by self-associating peptides are especially attractive for this purpose as they exhibit plasmonic-enhanced chiroptical activity. Here, we showed that the presence of cetyltrimethylammonium bromide (CTAB) micelles in a gold nanorod solution promoted the self-association of l-/d-glutathione (GSH) and significantly enhanced the chirality of the resulting plasmonic nanochains...
March 23, 2017: ACS Nano
https://www.readbyqxmd.com/read/28332138/benzo-a-pyrene-exposure-causes-genotoxic-and-biochemical-changes-in-the-midge-larvae-of-chironomus-sancticaroli-strixino-strixino-diptera-chironomidae
#6
M Vicentini, G S Morais, D Rebechi-Baggio, V S Richardi, G S Santos, M M Cestari, M A Navarro-Silva
Benzo(a)pyrene (BaP) is a carcinogenic polycyclic aromatic hydrocarbon, also found in nature due to human activities. BaP adheres to sediments showing toxic effects on benthic organisms, including midge larvae of the family Chironomidae. We tested for toxic effects of benzo(a)pyrene on Chironomus sancticaroli Strixino & Strixino 1981 using biochemical and genotoxic biomarkers, to identify changes in metabolic and antioxidant pathways, besides neurotoxic and DNA damage. Enzyme activity was compared by exposing larvae to four nominal concentrations (0...
March 22, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28331578/trophic-discrimination-factor-of-nitrogen-isotopes-within-amino-acids-in-the-dobsonfly-protohermes-grandis-megaloptera-corydalidae-larvae-in-a-controlled-feeding-experiment
#7
Naoto F Ishikawa, Fumio Hayashi, Yoko Sasaki, Yoshito Chikaraishi, Naohiko Ohkouchi
The trophic discrimination factor (TDF) of nitrogen isotopes ((15)N/(14)N) within amino acids, between a stream-dwelling dobsonfly larva (Protohermes grandis: Megaloptera; Corydalidae) and its diet (chironomid larvae), was determined in controlled feeding experiments. Last-instar larvae of P. grandis were collected from the Yozawa-gawa River, central Japan, and reared in the laboratory. After fed to satiation for 1 month, one group of larvae was each fed one living chironomid larva per day for 4 weeks, while a second group was starved for 8 weeks...
March 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28327954/genome-sequencing-of-the-winged-midge-parochlus-steinenii-from-the-antarctic-peninsula
#8
Sanghee Kim, Mijin Oh, Woongsic Jung, Joonho Park, Han-Gu Choi, Seung Chul Shin
Background: In the Antarctic, only two species of Chironomidae occur naturally-the wingless midge, Belgica antarctica , and the winged midge, Parochlus steinenii . B. antarctica is an extremophile with unusual adaptations. The larvae of B. antarctica are desiccation- and freeze-tolerant and the adults are wingless. Recently, the compact genome of B. antarctica was reported and it is the first Antarctic eukaryote to be sequenced. Although P. steinenii occurs naturally in the Antarctic with B...
February 24, 2017: GigaScience
https://www.readbyqxmd.com/read/28325933/a-permanent-host-shift-of-rabies-virus-from-chiroptera-to-carnivora-associated-with-recombination
#9
Nai-Zheng Ding, Dong-Shuai Xu, Yuan-Yuan Sun, Hong-Bin He, Cheng-Qiang He
Bat virus host shifts can result in the spread of diseases with significant effects. The rabies virus (RABV) is able to infect almost all mammals and is therefore a useful model for the study of host shift mechanisms. Carnivore RABVs originated from two historical host shifts from bat viruses. To reveal the genetic pathways by which bat RABVs changed their host tropism from bats to carnivores, we investigated the second permanent bat-to-carnivore shift resulting in two carnivore variants, known as raccoon RABV (RRV) and south-central skunk RABV (SCSKV)...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28325784/the-prevention-of-gestational-diabetes-mellitus-with-antenatal-oral-inositol-supplementation-a-randomized-controlled-trial
#10
Maria Farren, Niamh Daly, Aoife McKeating, Brendan Kinsley, Michael J Turner, Sean Daly
OBJECTIVES: This study investigated if inositol in a combination of myo-inositol and D-Chiro-inositol would prevent gestational diabetes mellitus (GDM) in women with a family history of diabetes. RESEARCH DESIGN AND METHODS: This was a randomized controlled trial that examined whether inositol from the first antenatal visit prevents GDM. The trial was carried out in a single-center tertiary referral center. Women with a family history of diabetes were enrolled at the first antenatal visit...
March 21, 2017: Diabetes Care
https://www.readbyqxmd.com/read/28325531/real-life-initiation-of-lumacaftor-ivacaftor-combination-in-adults-with-cystic-fibrosis-homozygous-for-the-phe508del-cftr-mutation-and-severe-lung-disease
#11
Dominique Hubert, Raphaël Chiron, Boubou Camara, Dominique Grenet, Anne Prévotat, Laurence Bassinet, Stéphane Dominique, Gilles Rault, Julie Macey, Isabelle Honoré, Reem Kanaan, Sylvie Leroy, Nadine Desmazes Dufeu, Pierre-Régis Burgel
OBJECTIVE: To investigate the short-term adverse events and effectiveness of lumacaftor/ivacaftor combination treatment in adults with cystic fibrosis (CF) and severe lung disease in a real life setting. METHODS: A multicentre observational study investigated adverse events, treatment discontinuation, FEV1 and body mass index (BMI) one month and three months after lumacaftor/ivacaftor initiation in adults with CF and FEV1 below 40% predicted. RESULTS: Respiratory adverse events (AEs) were reported by 27 of 53 subjects (51%) and 16 (30%) discontinued treatment...
March 15, 2017: Journal of Cystic Fibrosis: Official Journal of the European Cystic Fibrosis Society
https://www.readbyqxmd.com/read/28324697/adverse-events-in-a-chiropractic-spinal-manipulative-therapy-single-blinded-placebo-randomized-controlled-trial-for-migraineurs
#12
Aleksander Chaibi, Jūratė Šaltytė Benth, Peter J Tuchin, Michael Bjørn Russell
BACKGROUND: Unlike pharmacological randomized controlled trials (RCTs), manual-therapy RCTs do not always report adverse events (AEs). The few manual-therapy RCTs that provide information on AEs are frequently without details, such as the type and-, severity of the AE and reason for withdrawal. OBJECTIVE: To prospectively report all AEs in a chiropractic spinal manipulative therapy (CSMT) RCT. DESIGN: A prospective 3-armed, single-blinded, placebo, RCT...
March 14, 2017: Musculoskelet Sci Pract
https://www.readbyqxmd.com/read/28321293/primary-prevention-in-chiropractic-practice-a-systematic-review
#13
REVIEW
Guillaume Goncalves, Christine Le Scanff, Charlotte Leboeuf-Yde
BACKGROUND: Chiropractors are primarily concerned with musculoskeletal disorders but have the responsibility to deal also with prevention in other areas. OBJECTIVES: To establish the prevalence of chiropractors who have a positive opinion on the use of primary prevention (PP), their actual use of PP, and the proportion of patients who consult for PP in relation to (i) musculoskeletal disorders, (ii) public health issues, or (iii) chiropractic treatment for wellness...
2017: Chiropractic & Manual Therapies
https://www.readbyqxmd.com/read/28317441/oxidative-degradation-of-pentachlorophenol-by-permanganate-for-isco-application
#14
Roger Matta, Serge Chiron
Potassium permanganate (KMnO4) has been an effective technology for the in situ chemical oxidation (ISCO) of many organic compounds including chlorinated alkanes and alkenes, but it has rarely been applied for oxidizing aromatic organochlorines. This study confirms the ability of permanganate to oxidize an aromatic chlorinated compound, pentachlorophenol (PCP), in an efficient manner at neutral pH. The rate of the reaction between KMnO4 and PCP was calculated and the results indicated that the reaction between PCP and permanganate is relatively fast with a second order rate k"∼ 30 M(-1)s(-1)...
March 18, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28316932/bacterial-fauna-associating-with-chironomid-larvae-from-lakes-of-bengaluru-city-india-a-16s-rrna-gene-based-identification
#15
Ramprasad Kuncham, Thiyagarajan Sivaprakasam, R Puneeth Kumar, P Sreenath, Ravi Nayak, Tha Thayumanavan, Gopireddy V Subba Reddy
Chironomid larvae that inhabit in aquatic sediments play an important role as vector for bacterial pathogens. Its life cycle consists of four stages i.e. eggs, larvae, pupae and adult. In the present study we identified bacterial species associated with whole larvae of chironomids from 11 lake sediments of Bangalore region using 16s rRNA gene Sanger sequencing. We found that larvae from all lake sediments associated with bacterial species which include key pathogens. Totally we identified 65 bacterial isolates and obtained GenBank accession numbers (KX980423 - KX980487)...
June 2017: Genomics Data
https://www.readbyqxmd.com/read/28316106/chironomus-riparius-diptera-genome-sequencing-reveals-the-impact-of-minisatellite-transposable-elements-on-population-divergence
#16
Ann-Marie Oppold, Hanno Schmidt, Marcel Rose, Sören Lukas Hellmann, Florian Dolze, Fabian Ripp, Bettina Weich, Urs Schmidt-Ott, Erwin Schmidt, Robert Kofler, Thomas Hankeln, Markus Pfenninger
Active transposable elements (TEs) may result in divergent genomic insertion and abundance patterns among conspecific populations. Upon secondary contact, such divergent genetic backgrounds can theoretically give rise to classical Dobzhansky-Muller incompatibilities (DMI), thus contributing to the evolution of endogenous genetic barriers and eventually cause population divergence. We investigated differential TE abundance among conspecific populations of the non-biting midge Chironomus riparius and evaluated their potential role in causing endogenous genetic incompatibilities between these populations...
March 18, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28304182/insurance-reimbursement-for-complementary-healthcare-services
#17
James Whedon, Tor D Tosteson, Anupama Kizhakkeveettil, Melissa Nagare Kimura
INTRODUCTION: Insurance reimbursement for clinical services provided by complementary healthcare professionals in the United States likely differs by provider specialty. It is hypothesized that a lower likelihood of insurance reimbursement demonstrates that complementary healthcare services are not utilized to an optimal level and are not financially accessible to all who may need or want these services. The purpose of this project was to evaluate the likelihood of insurance reimbursement for complementary healthcare services compared with other complementary services and with conventional primary care medical services in New Hampshire...
March 17, 2017: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
https://www.readbyqxmd.com/read/28303418/action-of-fields-on-captive-disclination-loops
#18
Mallory Dazza, Rui Cabeça, Simon Čopar, Maria Helena Godinho, Pawel Pieranski
We report on two effects observed in experiments with captive disclination loops on polymeric fibers immersed in nematics and submitted to electric and/or magnetic fields. We show that the magnetic field oblique to a fiber with axial or helicoidal anchoring on its surface induces translation of disclination loops. Fields orthogonal to fibers with helicoidal anchoring make disclination loops rotate around the field direction. In the linear regime of this last chirogyral effect, the angle of rotation is proportional to the helix wave vector and its sense unveils the chirality of the helix...
March 2017: European Physical Journal. E, Soft Matter
https://www.readbyqxmd.com/read/28302309/best-practices-for-chiropractic-care-for-older-adults-a-systematic-review-and-consensus-update
#19
Cheryl Hawk, Michael J Schneider, Mitchell Haas, Paul Katz, Paul Dougherty, Brian Gleberzon, Lisa Z Killinger, John Weeks
OBJECTIVE: The purpose of this study was to update evidence-based recommendations on the best practices for chiropractic care of older adults. METHODS: The project consisted of a systematic literature review and a consensus process. The following were searched from October 2009 through January 2016: MEDLINE, Index to Chiropractic Literature, CINAHL (Cumulative Index to Nursing and Allied Health Literature), AMED (Allied and Complementary Medicine Database), Alt HealthWatch, Cochrane Database of Systematic Reviews, and Cochrane Registry of Controlled Trials...
March 14, 2017: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/28299911/sequence-dependent-self-assembly-of-chiral-polyimides
#20
Chuanqing Kang, Jijun Yan, Zheng Bian, Rizhe Jin, Xiaoye Ma, Zhijun Du, Haibo Yao, Lianxun Gao
Sequence-defined chiral polyimides comprising identical asymmetric diamine monomers arranged in different directions along the main chain were designed and prepared. These new sequence-defined polymers exhibit sequence-dependent self-assembly behaviors and responses to ibuprofen enantiomers, as revealed by their chiroptical spectra and gelation properties. For the first time, the self-assembly of polymers and their interactions with guest molecules have been successfully controlled by means of the directional arrangement of the monomers in their polymer backbones...
March 16, 2017: Chemistry, An Asian Journal
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