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Jocelyn L Smith, Victor Limay-Rios, David C Hooker, Arthur W Schaafsma
Western bean cutworm, Striacosta albicosta (Smith; Lepidoptera: Noctuidae) has become a key pest of maize, Zea mays (L.), in Ontario, Canada which is challenging to control due to its lack of susceptibility to most Bt-maize events. Injury by S. albicosta may exacerbate Fusarium graminearum (Schwabe; Hypocreales: Nectriaceae) infection through provision of entry points on the ear. The objectives of this study were to: investigate the relationship between injury by S. albicosta and deoxynivalenol (DON) accumulation; evaluate non-Bt and Bt-maize hybrids, with and without insecticide and fungicide application; and determine optimal insecticide-fungicide application timing for reducing S...
March 14, 2018: Journal of Economic Entomology
Ana M Molina, Thomas E Hutson, Dmitry Nosov, Piotr Tomczak, Oleg Lipatov, Cora N Sternberg, Robert Motzer, Tim Eisen
BACKGROUND: Tivozanib is a selective inhibitor of vascular endothelial growth factor receptors 1, 2 and 3 tyrosine kinases. This open-label, crossover clinical study (AV-951-09-902) provided access to tivozanib for patients who progressed on sorafenib in TIVO-1, comparing tivozanib with sorafenib in patients with advanced renal cell carcinoma (RCC). METHODS: Patients enrolled in this single-arm, phase 2 crossover study were previously randomised to sorafenib on TIVO-1, progressed and then crossed over to tivozanib...
March 13, 2018: European Journal of Cancer
Eimer Maloney, Ronan N McGinty, Daniel J Costello
PURPOSE: Reporting of 'real-world' data on efficacy and tolerability of antiepileptic medications helps to inform physicians on how newer medications perform in the clinical setting, outside of the strict regimens of clinical trials. We report our experience of prescribing lacosamide monotherapy to a diverse range of patients at our epilepsy centre. METHODS: We performed a single-centre, retrospective review of all patients who had been prescribed lacosamide monotherapy over the last 8 years...
March 8, 2018: Epilepsy Research
Jared T Hammill, Deepak Bhasin, Daniel C Scott, Jaeki Min, Yizhe Chen, Yan Lu, Lei Yang, Ho Shin Kim, Michele C Connelly, Courtney Hammill, Gloria Holbrook, Cynthia Jeffries, Bhuvanesh Singh, Brenda A Schulman, R Kiplin Guy
We previously reported the discovery, validation, and structure-activity relationships of a series of piperidinyl ureas that potently inhibit the DCN1-UBE2M interaction. We demonstrated that compound 7 inhibits both the DCN1-UBE2M protein-protein interaction and DCN1-mediated cullin neddylation in biochemical assays and reduces levels of steady-state cullin neddylation in a squamous carcinoma cell line harboring DCN1 amplification. Although compound 7 exhibits good solubility and permeability, it is rapidly metabolized in microsomal models (CLint = 170 mL/min/kg)...
March 16, 2018: Journal of Medicinal Chemistry
Rong-Guei Tsai, Pei-Hsuan Tsai
The location information obtained using a sensor is a critical requirement in wireless sensor networks. Numerous localization schemes have been proposed, among which mobile-anchor-node-assisted localization (MANAL) can reduce costs and overcome environmental constraints. A mobile anchor node (MAN) provides its own location information to assist the localization of sensor nodes. Numerous path planning schemes have been proposed for MANAL, but most scenarios assume the absence of obstacles in the environment...
March 16, 2018: Sensors
Nasir Mehmood, Ranim Alayoubi, Eric Husson, Cédric Jacquard, Jochen Büchs, Catherine Sarazin, Isabelle Gosselin
Imidazolium ionic liquids (ILs) are promising solvents for lignocellulosic biomass (LCB) pretreatment and allow the achievement of higher ethanolic yields after enzymatic hydrolysis and ethanolic fermentation. However, residual ILs entrapped in pretreated biomass are often toxic for fermentative microorganisms, but interaction mechanisms between ILs and cells are still unknown. Here we studied the effects of 1-ethyl-3-methylimidazolium acetate [Emim][OAc] and 1-ethyl-3-methylimidazolium methylphosphonate [Emim][MeO(H)PO₂] on Kluyveromyces marxianus , a thermotolerant ethanologenic yeast...
March 16, 2018: International Journal of Molecular Sciences
Carey L Holleran, Patrick W Hennessey, Abigail L Leddy, Gordhan B Mahtani, Gabrielle Brazg, Brian D Schmit, T George Hornby
BACKGROUND AND PURPOSE: Previous data suggest that large amounts of high-intensity stepping training in variable contexts (tasks and environments) may improve locomotor function, aerobic capacity, and treadmill gait kinematics in individuals poststroke. Whether similar training strategies are tolerated and efficacious for patients with other acute-onset neurological diagnoses, such as motor incomplete spinal cord injury (iSCI), is unknown. Individuals with iSCI potentially have greater bilateral impairments...
April 2018: Journal of Neurologic Physical Therapy: JNPT
Hyunjung Oh, Sangil Han, Ashok Kumar Pandey, Sang Hoon Han, Neeraj Kumar Mishra, Saegun Kim, Rina Chun, Hyung Sik Kim, Jihye Park, In Su Kim
The rhodium(III)-catalyzed C-H functionalization followed by intramolecular annulation reactions between azobenzenes and sulfoxonium ylides are described. This protocol leads to the efficient formation of 3-acyl (2H)-indazoles with a range of substrate scope. A high level of chemoselectivity and functional group tolerance of this transformation were also observed.
March 16, 2018: Journal of Organic Chemistry
Hai-Jun Zhang, Alexander W Schuppe, Shi-Tao Pan, Jin-Xiang Chen, Bo-Ran Wang, Timothy R Newhouse, Liang Yin
A mild and operationally simple copper-catalyzed vinylogous aerobic oxidation of ,- and ,-unsaturated esters is described. This method features good yields, broad substrate scope, excellent chemo- and regioselectivity and good functional group tolerance. This method is additionally capable of oxidizing ,- and ,-unsaturated aldehydes, ketones, amides, nitriles and sulfones. Furthermore, the present catalytic system is suitable for bisvinylogous and trisvinylogous oxidation. TMG was found to be crucial in its role as a base, but we also speculate it serves as a ligand to copper(II) triflate to produce the active copper(II) catalyst...
March 16, 2018: Journal of the American Chemical Society
Qin Xiang, Yuping Liu, Xuefeng Zou, Bingbing Hu, Yujie Qiang, Danmei Yu, Wei Yin, Changguo Chen
In this work, g-C3N4@GO gel-like hybrid is obtained by assembling intentionally exfoliated g-C3N4 sheets on graphene oxide (GO) sheets under a hydrothermal condition. A specific N-doping process is firstly designed by heating the g-C3N4@GO interlaced hybrid in vacuum to form nitrogen-doped graphene nanosheets (NGS) with high level of pyridinic-N (56.0%) and edge-rich defect structure. The prepared NGS exhibited a great electrocatalysis for oxygen reduction reaction (ORR) in terms of the activity, durability, methanol tolerance, and the reaction kinetics...
March 16, 2018: ACS Applied Materials & Interfaces
Estefanija Bogdanova, Irina Rozentale, Iveta Pugajeva, Emeka E Emecheta, Vadims Bartkevics
This work reports data on the occurrence of nine mycotoxins and two food processing contaminants - acrylamide and furan - in a total of 100 beers produced in Latvia. Mycotoxins were detected by high-performance liquid chromatography (HPLC) coupled with time-of-flight mass spectrometry, acrylamide by HPLC coupled with quadrupole-Orbitrap mass spectrometry, and furan by headspace gas chromatography-mass spectrometry. The most frequently occurring mycotoxins were HT-2 and deoxynivalenol (DON), which were detected in 52% and 51% of the analysed samples...
March 16, 2018: Food Additives & Contaminants. Part B, Surveillance
George A Fisher, Edward M Wolin, Nilani Liyanage, Susan Pitman Lowenthal, Beloo Mirakhur, Rodney F Pommier, Montaser Shaheen, Aaron I Vinik
OBJECTIVE: This ELECT prospective analysis examined lanreotide depot/autogel for carcinoid syndrome (CS) symptom control in patients with neuroendocrine tumors (NETs) who were responsive to prior octreotide (prior octreotide group) compared with patients who were naïve to prior somatostatin analogue treatment (de novo group). METHODS: Adults with histopathologically confirmed NET and stable CS (diarrhea and/or flushing) were randomized to subcutaneous (SC) lanreotide 120 mg or placebo every 4 weeks for 16 weeks...
March 2018: Endocrine Practice
Daniel Amgar, Tal Binyamin, Vladimir Uvarov, Lioz Etgar
One of the most attractive features of perovskite materials is their chemical flexibility. Due to innovative chemical compositions of perovskites, their optical and structural properties, and functionalities have become more advanced, enabling better solar performance in photovoltaics, as well as robustness and excellent properties in the nanoscale for optoelectronics. The quest for novel perovskite compositions in the nano-scale is significantly important. This paper reports on a mixed-cation system of RbxCs1-xPbX3 (where X = Cl or Br) nanoparticles...
March 16, 2018: Nanoscale
Pengfei Zhang, Yu Zhou, Xu Han, Jinyi Xu, Hong Liu
The dearomatizing annulation reaction is a significant challenge in organic chemistry. The direct activation of α-carbons of simple saturated esters, as nucleophiles, is an important synthesis strategy. In the present study, we disclose [3+2] dearomatizing annulation reactions with direct activating α-carbons of saturated carboxylic esters and N-iminoisoquinolinium ylides, which possess highly enantioselective characteristics, catalyzed by N-heterocyclic carbenes (NHCs). The protocol achieves isoquinoline dearomatization and the construction of tricyclic chiral products under mild conditions with good yield, substrate tolerance, diastereoselectivity, and excellent enantioselectivity...
March 16, 2018: Journal of Organic Chemistry
Ye Seul Yang, Min Hyuk Lim, Seong Ok Lee, Eun Roh, Chang Ho Ahn, Soo Heon Kwak, Young Min Cho, Sungwan Kim, Andrea Mari, Kyong Soo Park, Hye Seung Jung
AIMS: Angiotensin receptor blockers (ARB) are anti-hypertensive drugs with renal protective effect. Additionally, they have been associated with the delayed onset of type 2 diabetes in high-risk populations, and some ARB were reported to increase insulin secretion and sensitivity in patients with prediabetes. Therefore, we studied the effects of ARB on insulin secretion in hypertensive patients with type 2 diabetes. MATERIALS AND METHODS: Forty-one patients were enrolled in this open-labeled, active comparator-controlled and crossover study...
March 15, 2018: Diabetes, Obesity & Metabolism
Lesley Uttley, Iñigo Bermejo, Shijie Ren, Marrissa Martyn-St James, Ruth Wong, David L Scott, Adam Young, Matt Stevenson
As part of its Single Technology Appraisal process, the National Institute for Health and Care Excellence (NICE) invited the manufacturer (Pfizer) of tofacitinib (TOF; Xeljanz® ) to submit evidence of the drug's clinical and cost-effectiveness in the treatment of rheumatoid arthritis (RA) after the failure of conventional disease-modifying antirheumatic drugs (cDMARDs). The School of Health and Related Research Technology Appraisal Group at the University of Sheffield was commissioned to act as the independent Evidence Review Group (ERG)...
March 15, 2018: PharmacoEconomics
Paulo V Mezzaroba, Dalton M Pessôa Filho, Alessandro M Zagatto, Fabiana Andrade Machado
This study aimed to investigate the effect of prior LED sessions on the responses of cardiorespiratory parameters during the running incremental step test. Twenty-six healthy, physically active, young men, aged between 20 and 30 years, took part in this study. Participants performed two incremental load tests after placebo (PLA) and light-emitting diode application (LED), and had their gas exchange, heart rate (HR), blood lactate, and rating of perceived exertion (RPE) monitored during all tests. The PLA and LED conditions were compared using the dependent Student t test with significance set at 5%...
March 15, 2018: Lasers in Medical Science
Maria Siemionow, Joanna Cwykiel, Ahlke Heydemann, Jesus Garcia, Enza Marchese, Krzysztof Siemionow, Erzsebet Szilagyi
Duchenne Muscular Dystrophy (DMD) is a progressive and lethal disease caused by mutations of the dystrophin gene. Currently no cure exists. Stem cell therapies targeting DMD are challenged by limited engraftment and rejection despite the use of immunosuppression. There is an urgent need to introduce new stem cell-based therapies that exhibit low allogenic profiles and improved cell engraftment. In this proof-of-concept study, we develop and test a new human stem cell-based approach to increase engraftment, limit rejection, and restore dystrophin expression in the mdx/scid mouse model of DMD...
March 15, 2018: Stem Cell Reviews
Young-A Heo, Emma D Deeks
A fixed-dose combination of the hepatitis C virus (HCV) NS5B polymerase inhibitor sofosbuvir, the HCV NS5A inhibitor velpatasvir and the HCV NS3/4A protease inhibitor voxilaprevir (sofosbuvir/velpatasvir/voxilaprevir; Vosevi® ) is approved in the EU for the treatment of chronic HCV genotype 1, 2, 3, 4, 5 or 6 infection in adults. In the phase III POLARIS trials, in patients who had HCV genotype 1-6 infection with or without compensated cirrhosis, overall rates of sustained virological response at 12 weeks post-treatment (SVR12 ) with sofosbuvir/velpatasvir/voxilaprevir were high after 8 weeks of treatment in direct-acting antiviral (DAA)-naïve patients and 12 weeks of treatment in DAA-experienced patients...
March 15, 2018: Drugs
Arthur Bob Karnuah, Gregory Dunga, Arthur Wennah, Walter T Wiles, Edmond Greaves, Roland Varkpeh, Richard Osei-Amponsah, Paul Boettcher
Phenotypic characterization of animal genetic resources (AnGR) involves identification of distinct breed populations, describing their external and production characteristics in a given environment and management, and taking into account the social and economic factors that affect them. A survey involving 346 livestock farmers was conducted in the 15 counties of Liberia to collect data on production practices and phenotypic characteristics of beef cattle. A pre-tested structured questionnaire, focus group discussions, and in-depth interviews were utilized in data collection...
March 15, 2018: Tropical Animal Health and Production
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