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https://www.readbyqxmd.com/read/28823100/-1s-3r-cis-chrysanthemyl-tiglate-sex-pheromone-of-the-striped-mealybug-ferrisia-virgata
#1
Jun Tabata, Ryoko T Ichiki
Derivatives of 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylic acid (chrysanthemic acid) are classic natural pyrethroids discovered in pyrethrum plants and show insecticidal activity. Chrysanthemic acid, with two asymmetric carbons, has four possible stereoisomers, and most natural pyrethroids have the (1R,3R)-trans configuration. Interestingly, chrysanthemic acid-related structures are also found in insect sex pheromones; carboxylic esters of (1R,3R)-trans-(2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropyl)methanol (chrysanthemyl alcohol) have been reported from two mealybug species...
August 19, 2017: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/28823068/stress-affects-surface-glycoconjugates-of-the-rat-endometrium-at-the-time-of-implantation
#2
Elham Aliabadi, Zohreh Makoolati, Tahereh Talaei-Khozani, Fakhreddin Mesbah Ardekani
One of the treatments to infertility is In Vitro Fertilization (IVF). In the course of IVF, fertilization rate can be improved through stress reduction. Probably one of the causes of low outcome of IVF is changes in uterine glycoconjugates that are first site of contact between blastocyst and uterus, due to stress, e.g., stress of injection. Thus, the study of the injectional stress effects on implantation period is very important to improve the outcome of IVF. Sixteen mature female rats were divided to experimental and control groups...
August 19, 2017: Glycoconjugate Journal
https://www.readbyqxmd.com/read/28823058/polyurethane-gelatin-nanofibrils-neural-guidance-conduit-containing-platelet-rich-plasma-and-melatonin-for-transplantation-of-schwann-cells
#3
Majid Salehi, Mahdi Naseri-Nosar, Somayeh Ebrahimi-Barough, Mohammdreza Nourani, Arash Khojasteh, Saeed Farzamfar, Korosh Mansouri, Jafar Ai
The current study aimed to enhance the efficacy of peripheral nerve regeneration using a biodegradable porous neural guidance conduit as a carrier to transplant allogeneic Schwann cells (SCs). The conduit was prepared from polyurethane (PU) and gelatin nanofibrils (GNFs) using thermally induced phase separation technique and filled with melatonin (MLT) and platelet-rich plasma (PRP). The prepared conduit had the porosity of 87.17 ± 1.89%, the contact angle of 78.17 ± 5.30° and the ultimate tensile strength and Young's modulus of 5...
August 19, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/28823033/the-combination-of-mitomycin-induced-blood-cells-with-a-temporary-treatment-of-ciclosporin-a-prolongs-allograft-survival-in-vascularized-composite-allotransplantation
#4
Christian Andreas Radu, Sebastian Fischer, Yannick Diehm, Otto Hetzel, Florian Neubrech, Laura Dittmar, Christian Kleist, Martha Maria Gebhard, Peter Terness, Ulrich Kneser, Jurij Kiefer
BACKGROUND: Vascularized composite allotransplantation (VCA) is a rapidly expanding field of transplantation and provides a potential treatment for complex tissue defects. Peripheral blood mononuclear cells (PBMCs) shortly incubated with the antibiotic and chemotherapeutic agent mitomycin C (MMC) can suppress allogeneic T cell response and control allograft rejection in various organ transplantation models. MMC-incubated PBMCs (MICs) are currently being tested in a phase I clinical trial in kidney transplant patients...
August 19, 2017: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/28822952/phosphorus-optimization-for-simultaneous-nitrate-contaminated-groundwater-treatment-and-algae-biomass-production-using-ettlia-sp
#5
Fariba Rezvani, Mohammad-Hossein Sarrafzadeh, Seong-Hyun Seo, Hee-Mock Oh
The effects of phosphorus concentration on the cell growth, nutrient assimilation, photosynthetic parameters, and biomass recovery of Ettlia sp. were evaluated with batch experiments using groundwater, 50mg/L of N-NO3(-), and different concentrations of P-PO4(3-): 0.5, 2.5, 5, and 10mg/L. The maximum biomass productivity and phosphorus removal rate were 0.2g/L/d and 5.95mg/L/d, respectively, with the highest phosphorus concentration of 10mg/L. However, a phosphorus concentration of 5mg/L (N:P=10) was sufficient to ensure an effective nitrogen removal rate of 11mg/L/d, maximum growth rate of 0...
August 12, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28822837/delayed-pain-decrease-following-m1-tdcs-in-spinal-cord-injury-a-randomized-controlled-clinical-trial
#6
Aurore Thibaut, Sandra Carvalho, Leslie Morse, Ross Zafonte, Felipe Fregni
Despite some encouraging findings for the treatment of neuropathic pain in patients with spinal cord injury (SCI), transcranial direct current stimulation (tDCS) directed to the primary motor cortex (M1) has faced some mixed results. Prior to translating this technology to clinical care, consistent results and durable effects need to be found. We, therefore, aimed to assess the direct and long-term effects of tDCS on pain following SCI. We performed a two-phase randomized sham-controlled clinical trial where patients received 5days of tDCS followed by at 3-month follow-up period (Phase I); then, Phase II consisted of 10days of tDCS with an 8-week follow-up period...
August 16, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28822797/influence-of-bcr-abl-transcript-type-on-outcome-in-patients-with-chronic-phase-chronic-myeloid-leukemia-treated-with%C3%A2-imatinib
#7
Katia Borgia Barbosa Pagnano, Eliana Cristina Miranda, Márcia Torresan Delamain, Gislaine Oliveira Duarte, Erich Vinicius de Paula, Irene Lorand-Metze, Carmino Antonio de Souza
BACKGROUND: The prognostic significance of breakpoint cluster region gene-Abelson murine leukemia viral oncogene homolog 1 (BCR-ABL1) transcripts in chronic myeloid leukemia (CML) is still controversial. PATIENTS AND METHODS: All consecutive CML patients in chronic phase treated with imatinib in a single center were analyzed (n = 170). BCR-ABL1 transcript was evaluated using multiplex reverse transcription polymerase chain reaction. Exclusively patients with BCR-ABL transcripts e13a2 and/or e14a2 were included in this analysis...
June 21, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/28822742/strategy-set-shifting-and-response-inhibition-in-adult-rats-exposed-to-an-environmental-polychlorinated-biphenyl-mixture-during-adolescence
#8
Supida Monaikul, Paul Eubig, Stan Floresco, Susan Schantz
Converging evidence from studies with animal models and humans suggests that early developmental exposure to polychlorinated biphenyls (PCBs) leads to deficits in cognitive flexibility and inhibitory control. These processes are mediated to a large extent by the prefrontal cortex, thus we examined the effects of PCB exposure during adolescence-a period of robust prefrontal cortical development-on both processes. Specifically, we used operant set-shifting and differential reinforcement of low rates of responding (DRL) tasks to assess cognitive flexibility and response inhibition, respectively...
August 16, 2017: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/28822576/pembrolizumab-versus-ipilimumab-for-advanced-melanoma-final-overall-survival-results-of-a-multicentre-randomised-open-label-phase-3-study-keynote-006
#9
Jacob Schachter, Antoni Ribas, Georgina V Long, Ana Arance, Jean-Jacques Grob, Laurent Mortier, Adil Daud, Matteo S Carlino, Catriona McNeil, Michal Lotem, James Larkin, Paul Lorigan, Bart Neyns, Christian Blank, Teresa M Petrella, Omid Hamid, Honghong Zhou, Scot Ebbinghaus, Nageatte Ibrahim, Caroline Robert
BACKGROUND: Interim analyses of the phase 3 KEYNOTE-006 study showed superior overall and progression-free survival of pembrolizumab versus ipilimumab in patients with advanced melanoma. We present the final protocol-specified survival analysis. METHODS: In this multicentre, open-label, randomised, phase 3 trial, we recruited patients from 87 academic institutions, hospitals, and cancer centres in 16 countries (Australia, Austria, Belgium, Canada, Chile, Colombia, France, Germany, Israel, Netherlands, New Zealand, Norway, Spain, Sweden, UK, and USA)...
August 16, 2017: Lancet
https://www.readbyqxmd.com/read/28822574/analysis-of-individual-and-total-microcystins-in-surface-water-by-on-line-preconcentration-and-desalting-coupled-to-liquid-chromatography-tandem-mass-spectrometry
#10
Gabriel Munoz, Sung Vo Duy, Audrey Roy-Lachapelle, Barry Husk, Sébastien Sauvé
A fast and high-throughput method is proposed for the determination of total microcystins (ΣMC) in environmental surface waters. After a 1-h Lemieux-von Rudloff oxidation step to yield the 2-methyl-3-methoxy-4-phenylbutyric acid (MMPB) moiety, samples were quenched, filtered, and directly analyzed. This was achieved via solid phase extraction (SPE) coupled on-line to ultra-high performance liquid chromatography electrospray ionization triple stage quadrupole mass spectrometry. The choice of on-line SPE settings was conducted using experimental designs...
August 5, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28822572/enantiodifferentiation-of-whisky-and-cognac-lactones-using-gas-chromatography-with-different-cyclodextrin-chiral-stationary-phases
#11
Hans-Georg Schmarr, Maximilian Mathes, Kristina Wall, Frank Metzner, Marius Fraefel
The chiral lactone 5-butyl-4-methyloxolan-2-one or 5-butyl-4-methyldihydro-2(3H)-furanone, often named whisky lactone, is found in oak wood, then contributing to the appreciated flavor of beverages stored in such wooden barrels. Its next higher homologue is named cognac lactone (5-pentyl-4-methyloxolan-2-one or 5-pentyl-4-methyldihydro-2(3H)-furanone), however is much less known, probably due to its minor concentration level. In order to study the direct enantioseparation of both lactones by gas chromatography on chiral stationary phases, individual enantiomers, particularly for cognac lactone were made available...
August 5, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28822571/electrospun-decyl-3-methylimidazolium-mono-bromate-polyamide-nanofibers-as-solid-phase-microextraction-coating
#12
Ali Roostaie, Sorosh Rastegar, Hamid Najarzadegan, Shokooh Ehteshami
In the current study, electrospun-based ionic liquid (IL) doped polyamide (PA) nanofibers were prepared and used as the coating material of solid phase microextration device in the fiber geometry. Addition of IL, decyl-3-methylimidazolium mono bromate, increased the conductivity of the PA solution facilitating the electrospining process. The scanning electron microscopy images of decyl-3-methylimidazolium mono bromated/polyamide nanofibers showed the decreased diameter of the nanofibers in the range of 35-160nm compared to the PA nanofiber...
August 9, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28822464/using-simulation-to-assess-the-impact-of-triage-interruptions
#13
Kimberly D Johnson, Abeer Alhaj-Ali
INTRODUCTION: Interruptions are common in the emergency department and contribute to catastrophic errors. Care priorities and acuity levels are assigned during triage, meaning that mistakes and omissions during the triage process could have detrimental effects on patients. The purpose of this project was to assess the feasibility of investigating the impact of interruptions on triage and the decision-making process in a simulated setting. METHODS: A 2-phase, sequential exploratory mixed method design was used...
September 2017: Journal of Emergency Nursing: JEN: Official Publication of the Emergency Department Nurses Association
https://www.readbyqxmd.com/read/28822341/mullins-effect-in-polyethylene-and-its-dependency-on-crystal-content-a-network-alteration-model
#14
M Makki, G Ayoub, H Abdul-Hameed, F Zaïri, B Mansoor, M Naït-Abdelaziz, M Ouederni
This contribution is focused on the Mullins effect in polyethylene. An ultra-low-density polyethylene with 0.15 crystal content, a low-density polyethylene with 0.3 crystal content and a high-density polyethylene with 0.72 crystal content are subjected to cyclic stretching over a large strain range. Experimental observations are first reported to examine how the crystal content influences the Mullins effect in polyethylene. It is found that the cyclic stretching is characterized by a stress-softening, a hysteresis and a residual strain, whose amounts depends on the crystal content and the applied strain...
April 27, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28822338/in-vitro-bioaccessibility-and-health-risk-assessment-of-heavy-metals-in-atmospheric-particulate-matters-from-three-different-functional-areas-of-shanghai-china
#15
Huang Huang, Ying Jiang, Xiaoyun Xu, Xinde Cao
The bioaccessibility and human health risks of heavy metals in PM2.5 and PM10 samples from three functional areas of Shanghai, China including a commercial area (CA), a residential area (RA), and an industrial area (IA), were investigated. Gamble's solution and physiologically based extraction test were employed to simulate human respiratory and digestive system, respectively. Both PM2.5 and PM10 concentration in the three areas exceeded the guideline of WHO, and followed the order of IA>CA≈RA. Zinc and Pb were the most abundant metals with a concentration range of 0...
August 16, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28822246/perfluorooctane-sulfonate-pfos-removal-with-pd-0-nfe-0-nanoparticles-adsorption-or-aqueous-fe-complexation-not-transformation
#16
Saerom Park, Jenny E Zenobio, Linda S Lee
PFOS removal at 6 and 21days (d) when reacted with palladium coated zero valent iron nanoparticles (Pd(0)/nFe(0) NPs) was quantified as a function of pH (3.6, 5.5, and 8.7) and temperature (22, 45 and 70°C). PFOS concentrations were measured in aqueous phases and NP extracts. The greatest PFOS removal occurred at 6 d with the lowest pH and highest temperature; however, recovered PFOS increased at 21 d. Furthermore, neither F(-) nor SO4(2-) (from SO3(2-) cleavage) generation was observed indicating the absence of PFOS transformation...
August 6, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28822184/-analyzing-crude-processed-root-of-polygonum-multiflorum-from-different-habitats-by-uplc-fingerprint-and-mode-identification-methods
#17
Rong Xiao, Yan Lin, Si-Min Lei, Ying Zhang, Jie Huang, Bo-Hou Xia, Chun Li, Duan-Fang Liao, Ping Wu, Li-Mei Lin
To establish a content determination method for 2,3,5,4'-tetrahydroxy stilbene-2-O-β-D-glucoside (TSG) of the crude/processed root of Polygonum multiflorum from different habitats in China and set up the fingerprint by using UPLC. Various samples were pretreated by macro-porous resin. Then UPLC analysis was performed on Waters ACQUITY UPLC@BEH C18 chromatographic column (2.1 mm×50 mm, 1.7 μm) at (25±5) ℃. A binary gradient elution system was composed of acetonitrile (phase A) and 0.5% acetic acid solution (phase B)...
June 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28822154/-a-new-benzamide-derivative-from-rice-fermentation-of-streptomyces-sp-cpcc-202950
#18
Shan-Shan Chang, Ming-Hua Chen, Ren-Zhong Wang, Ye-Xiang Wu, Guo-Hong Yang, Biao Dong, Li-Yan Yu, Zeng-Ping Gao, Shu-Yi Si
Eight compounds were isolated from the rice fermentation of Streptomyces sp. CPCC 202950 by a combination of various chromatographic techniques including column chromatography over silica, Sephadex LH-20, flash C₁₈, and reversed-phase HPLC. Their structures were identified as 3-[(3'-amino-3'-oxoprop-1'-en-2'-yl)oxy]benzamide (1), m-hydroxybenzamide (2), leptosphaepin (3), 5-methyluracil (4), feruloylamide (5), p-hydroxyphenylacetoamide (6), vanillamide (7), cyclo (L-val-L-ala) (8). Among them, 1 was a new benzamide analogue, and 2 was a new natural product...
June 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28822046/body-mass-index-and-clinical-response-to-intravenous-or-subcutaneous-abatacept-in-patients-with-rheumatoid-arthritis
#19
Maria-Antonietta D'Agostino, Rieke Alten, Eduardo Mysler, Manuela Le Bars, June Ye, Bindu Murthy, Julia Heitzmann, Radu Vadanici, Gianfranco Ferraccioli
This post hoc analysis of ACQUIRE (NCT00559585) explored the effect of baseline body mass index (BMI) on the pharmacokinetics of and clinical response to subcutaneous (SC) or intravenous (IV) abatacept in patients with rheumatoid arthritis (RA). ACQUIRE was a phase 3b, 6-month, double-blind, double-dummy study in which patients with RA were randomized (1:1) to SC (fixed - dose; 125 mg/week) or IV (weight-tiered; ~ 10 mg/kg/month) abatacept plus methotrexate. In this analysis, minimum abatacept plasma concentration (Cmin) was measured at 3 and 6 months, and clinical remission over 6 months was assessed by Disease Activity Score 28 (C-reactive protein; DAS28 [CRP], < 2...
August 18, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28822026/corneal-thickness-residual-stromal-thickness-and-its-effect-on-opaque-bubble-layer-in-small-incision-lenticule-extraction
#20
Jiaonan Ma, Yan Wang, Liuyang Li, Jiamei Zhang
PURPOSE: To evaluate the effects of the central corneal thickness (CCT) and residual stromal thickness (RST) on the formation of opaque bubble layer (OBL) during small-incision lenticule extraction (SMILE). METHODS: A total of 345 eyes from Refractive Surgery Center database at Tianjin Eye Hospital that had been subjected to SMILE surgery and followed for 6 months were included in this study and divided into OBL and OBL-free groups. Preoperative, intraoperative, and postoperative data for all eyes were evaluated and analyzed using multivariate regression analysis...
August 18, 2017: International Ophthalmology
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