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https://www.readbyqxmd.com/read/29786954/urinary-metabolites-predict-prolonged-duration-of-delayed-graft-function-in-dcd-kidney-transplant-recipients
#1
S Kostidis, J R Bank, D Soonawala, E Nevedomskaya, C van Kooten, O A Mayboroda, J W de Fijter
Extending kidney donor criteria, including donation after circulatory death (DCD), has resulted in increased rates of delayed graft function (DGF) and primary nonfunction. Here, we used Nuclear Magnetic Resonance (NMR) spectroscopy to analyze the urinary metabolome of DCD transplant recipients at multiple time points (days 10, 42, 180 and 360 after transplantation). The aim was to identify markers that predict prolonged duration of functional DGF (fDGF). Forty-seven metabolites were quantified and their levels were evaluated in relation to fDGF...
May 22, 2018: American Journal of Transplantation
https://www.readbyqxmd.com/read/29786866/characterization-of-efficacy-and-safety-of-pathogen-inactivated-and-quarantine-plasma-in-routine-use-for-treatment-of-acquired-immune-thrombotic-thrombocytopenic-purpura
#2
R Herbrecht, M Ojeda-Uribe, D Kientz, C Fohrer, A Bohbot, O Hinschberger, K-L Liu, E Remy, C Ernst, J-S Lin, L Corash, J P Cazenave
BACKGROUND: Auto-immune thrombotic thrombocytopenic purpura (TTP) is a morbid multi-organ disorder. Cardiac involvement not recognized in initial disease descriptions is a major cause of morbidity. Therapeutic plasma exchange (TPE) requires exposure to multiple plasma donors with risk of transfusion-transmitted infection (TTI). Pathogen inactivation (PI) with amotosalen-UVA, the INTERCEPT Blood System for Plasma (IBSP) is licensed to reduce TTI risk. METHODS: An open-label, retrospective study evaluated the efficacy of quarantine plasma (QP) and IBSP in TTP and defined treatment emergent cardiac abnormalities...
May 21, 2018: Vox Sanguinis
https://www.readbyqxmd.com/read/29786442/synthesis-of-c-glycoinositols-from-c-glycosylcrotylstannanes
#3
Ahmad S Altiti, David R Mootoo
A strategy for the synthesis of C-pseudodisaccharides that centers on the reaction of a C-linked crotyltin and a substituted pent-4-enal, and a ring closing metathesis-alkene dihydroxylation sequence on the derived crotylation products, is illustrated in the preparation of analogues of the insulin modulatory inositol galactosamine-β-(1->4)-3-O-methyl-D-chiro-inositol (β-INS-2). The modularity of this approach and versatility of the pivotal crotylation products makes this a potentially general methodology for diverse libraries of C-glycoinositols...
May 22, 2018: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/29785893/evaluating-vaccination-strategies-to-control-foot-and-mouth-disease-a-country-comparison-study
#4
T G Rawdon, M G Garner, R L Sanson, M A Stevenson, C Cook, C Birch, S E Roche, K A Patyk, K N Forde-Folle, C Dubé, T Smylie, Z D Yu
Vaccination is increasingly being recognised as a potential tool to supplement 'stamping out' for controlling foot-and-mouth disease (FMD) outbreaks in non-endemic countries. Infectious disease simulation models provide the opportunity to determine how vaccination might be used in the face of an FMD outbreak. Previously, consistent relative benefits of specific vaccination strategies across different FMD simulation modelling platforms have been demonstrated, using a UK FMD outbreak scenario. We extended this work to assess the relative effectiveness of selected vaccination strategies in five countries: Australia, New Zealand, the USA, the UK and Canada...
May 22, 2018: Epidemiology and Infection
https://www.readbyqxmd.com/read/29783780/conformational-aspects-of-the-o-acetylation-of-c-tetra-phenyl-calixpyrogallol-4-arene
#5
José Luis Casas-Hinestroza, Mauricio Maldonado
Reaction between pyrogallol and benzaldehyde results in a conformational mixture of C- tetra(phenyl)pyrogallol[4]arene (crown and chair). The conformer mixture was separated using crystallization procedures and the structures were determined using FTIR, ¹H-NMR, and 13 C-NMR. O -acetylation of C- tetra(phenyl)pyrogallol[4]arene (chair) with acetic anhydride, in pyridine results in the formation of dodecaacetyl-tetra(phenyl)pyrogallol[4]arene. The structure was determined using ¹H-NMR and 13 C-NMR finding that the product maintains the conformation of the starting conformer...
May 20, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29783757/a-repurposed-drug-for-brain-cancer-enhanced-atovaquone-amorphous-solid-dispersion-by-combining-a-spontaneously-emulsifying-component-with-a-polymer-carrier
#6
Hiroyuki Takabe, Zachary N Warnken, Yajie Zhang, Daniel A Davis, Hugh D C Smyth, John G Kuhn, Steve Weitman, Robert O Williams Iii
Glioblastoma multiforme (GBM) is the most common and lethal central nervous system tumor. Recently, atovaquone has shown inhibition of signal transducer and activator transcription 3, a promising target for GBM therapy. However, it is currently unable to achieve therapeutic drug concentrations in the brain with the currently reported and marketed formulations. The present study sought to explore the efficacy of atovaquone against GBM as well as develop a formulation of atovaquone that would improve oral bioavailability, resulting in higher amounts of drug delivered to the brain...
May 19, 2018: Pharmaceutics
https://www.readbyqxmd.com/read/29783623/optimization-of-ultrasound-assisted-extraction-and-structural-characterization-of-the-polysaccharide-from-pumpkin-cucurbita-moschata-seeds
#7
Libo Wang, Long Cheng, Fangcheng Liu, Tengfei Li, Zeyuan Yu, Yaqin Xu, Yu Yang
In the present study, ultrasound-assisted extraction (UAE) of crude polysaccharides (PSP) from pumpkin seeds was optimized by response surface method (RSM). The polysaccharide yield (2.29 ± 0.14%), which agreed closely with the theoretical predicted value 2.40%, was obtained under the optimal extraction conditions: extraction time 24 min, extraction temperature 50 °C, ultrasonic power 347 W, and liquid to solid ratio 23 mL/g. After further purification by two-step column chromatography, a novel polysaccharide (PSP-1) was isolated from pumpkin seeds...
May 18, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29783247/predictors-of-thrombogenesis-by-the-state-of-pro-and-anticoagulant-components-of-hemostasis-in-the-patients-with-stage-vd-chronic-kidney-disease
#8
Olexiy B Storozhuk, Iryna B Seleznyova, Larisa O Storozhuk, Boris G Storozhuk, Tetyana V Dovgalyuk
OBJECTIVE: Introduction: One of the major complications of stage V chronic kidney disease (CKD), treated by program hemodialysis, are hemostatic system disturbances resulting in thrombosis development. To detect early predictors of potential thrombosis in study category of patients is rather difficult because of inflammatory process, accumulation of antibodies, continuous damage of blood elements. The aim: To estimate potential applicability of activators and inhibitors of thrombogenesis as thrombophilia markers in the patients with stage V CKD, treated by program hemodialysis...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29782277/-association-of-polymorphism-4a-4b-and-4b-4b-in-endothelial-nitric-oxide-synthase-gene-and-markers-of-endothelial-dysfunction-in-patients-with-chronic-heart-failure
#9
E A Polunina, L P Voronina, I V Sevostyanova, O S Polunina, D S Tarasochkina
AIM: To examine the association of polymorphism 4a/4b and 4b/4b in endothelial nitric oxide synthase gene (eNOS) with levels of natriuretic peptide type-C, endothelin-1 and vasoregulative endothelial function in patients with chronic heart failure (CHF) depending on the ejection fraction of the left ventricle. MATERIALS AND METHODS: The study has included 280 patients with CHF of ischemic etiology and 60 somatically healthy individuals. A comprehensive assessment of the markers of the vascular endothelium function was carried out for all patients (endothelial function coefficient, natriuretic peptide type-C, endothelin-1) in association of polymorphism 4a/4b and 4b/4b gene of eNOS...
2018: Kardiologiia
https://www.readbyqxmd.com/read/29782209/practical-assessment-and-management-of-vulnerabilities-in-older-patients-receiving-chemotherapy-asco-guideline-for-geriatric-oncology
#10
Supriya G Mohile, William Dale, Mark R Somerfield, Mara A Schonberg, Cynthia M Boyd, Peggy S Burhenn, Beverly Canin, Harvey Jay Cohen, Holly M Holmes, Judith O Hopkins, Michelle C Janelsins, Alok A Khorana, Heidi D Klepin, Stuart M Lichtman, Karen M Mustian, William P Tew, Arti Hurria
Purpose To provide guidance regarding the practical assessment and management of vulnerabilities in older patients undergoing chemotherapy. Methods An Expert Panel was convened to develop clinical practice guideline recommendations based on a systematic review of the medical literature. Results A total of 68 studies met eligibility criteria and form the evidentiary basis for the recommendations. Recommendations In patients ≥ 65 years receiving chemotherapy, geriatric assessment (GA) should be used to identify vulnerabilities that are not routinely captured in oncology assessments...
May 21, 2018: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/29781595/-results-of-the-implementation-of-an-antimicrobial-stewardship-program-in-the-gerencia-de-atenci%C3%A3-n-integrada-of-alcazar-de-san-juan-castilla-la-mancha
#11
M A Asencio Egea, O Herráez Carrera, M Huertas Vaquero, H D Patiño Ortega, M Franco Huerta, P Alcázar Carmona, M C Conde García, C Muñoz-Cuevas, C Román Ortiz, J Gaitán Pitera, R Carranza González, J R Barberá
OBJECTIVE: Our aim was to evaluate the efficiency of an ASP after its implementation in 2016 in a Spanish hospital quality system. METHODS: Efficiency of the ASP was measured by process and outcome indicators at the level of the patient's quality of life, antimicrobial consumption and percentage of resistance to them during the 2016-2017 period. In 2017, the failures mode and effects analysis (FMEA) methodology was applied. An annual satisfaction survey was conducted...
May 18, 2018: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
https://www.readbyqxmd.com/read/29781594/-monoclonal-spread-of-multi-drug-resistant-ctx-m-15-producing-klebsiella-pneumoniae-impact-of-measures-to-control-the-outbreak
#12
M A Asencio Egea, M Huertas Vaquero, C Muñoz-Cuevas, J Gaitán Pitera, O Herráez Carrera, P Alcázar Carmona, H D Patiño Ortega, M Franco Huerta, C Román Ortiz, M C Conde García, R Carranza González, J R Barberá, V Bautista Sánchez
OBJECTIVE: To describe an outbreak of multi-drug resistant extended-spectrum β-lactamases-producing Klebsiella pneumoniae (MDR-ESBL-KPN) and the impact of measures for its control. METHODS: We reviewed the patients´ clinical records with MDR-ESBL-KPN isolation during 2013-2016 with resistance to fluoroquinolones, aminoglycosides, fosfomycin, and nitrofurantoin; susceptible to imipenem, meropenem, colistin, and tigecycline and variable to ertapenem and cotrimoxazole (Vitek-2)...
May 18, 2018: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
https://www.readbyqxmd.com/read/29781410/the-addition-of-docosahexaenoic-acid-dha-and-antioxidants-glutathione-peroxidase-and-superoxide-dismutase-in-extenders-to-epididymal-sperm-cryopreservation-in-bulls
#13
João D A Losano, Daniel S R Angrimani, Bruno R Rui, Luana C Bicudo, Andressa Dalmazzo, Bárbara C S Silva, Carlos H C Viana, Camilla M Mendes, Mayra E O A Assumpção, Valquiria H Barnabe, Marcilio Nichi
SummaryThe cryopreservation of epididymal sperm is an important technique that allows genetic material to be preserved, even post mortem. However, cryopreservation leads to increased oxidative stress and impaired sperm viability. Polyunsaturated fatty acid (PUFA) supplementation may improve certain sperm characteristics, but it also makes sperm more susceptible to oxidative stress, therefore adding antioxidants that counteract oxidative stress has become an option. In this context, this study aimed to evaluate the effect of the interaction between docosahexaenoic acid (DHA) and antioxidants on the quality after the cryopreservation of epididymal bull sperm...
May 21, 2018: Zygote: the Biology of Gametes and Early Embryos
https://www.readbyqxmd.com/read/29780678/meteoric-metal-chemistry-in-the-martian-atmosphere
#14
J M C Plane, J D Carrillo-Sanchez, T P Mangan, M M J Crismani, N M Schneider, A Määttänen
Recent measurements by the Imaging Ultraviolet Spectrograph (IUVS) instrument on NASA's Mars Atmosphere and Volatile EvolutioN mission show that a persistent layer of Mg+ ions occurs around 90 km in the Martian atmosphere but that neutral Mg atoms are not detectable. These observations can be satisfactorily modeled with a global meteoric ablation rate of 0.06 t sol-1 , out of a cosmic dust input of 2.7 ± 1.6 t sol-1 . The absence of detectable Mg at 90 km requires that at least 50% of the ablating Mg atoms ionize through hyperthermal collisions with CO2 molecules...
March 2018: Journal of Geophysical Research. Planets
https://www.readbyqxmd.com/read/29780484/exploiting-the-interactions-between-the-ruthenium-hoveyda-grubbs-catalyst-and-al-modified-mesoporous-silica-the-case-of-sba15-vs-kcc-1
#15
Baraa Werghi, Eva Pump, Mykyta Tretiakov, Edy Abou-Hamad, Andrei Gurinov, Pradeep Doggali, Dalaver H Anjum, Luigi Cavallo, Anissa Bendjeriou-Sedjerari, Jean-Marie Basset
Immobilization of the 2nd generation Hoveyda-Grubbs catalyst HG-II onto well-ordered 2D hexagonal (SBA15) and 3D fibrous (KCC-1) mesostructured silica, which contained tetra-coordinated Al, has been investigated through the Surface Organometallic Chemistry (SOMC) methodology. The main interest of this study lies in the peculiarity of the silica supports, which display a well-defined tetrahedral aluminum hydride site displaying a strong Lewis acid character, [( 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 11111111111111111 11111111111111111 00000000000000000 00000000000000000 00000000000000000 00000000000000000 11111111111111111 11111111111111111 00000000000000000 00000000000000000 00000000000000000 00000000000000000 11111111111111111 11111111111111111 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 Si-O-Si 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 11111111111111111 11111111111111111 00000000000000000 00000000000000000 00000000000000000 00000000000000000 11111111111111111 11111111111111111 00000000000000000 00000000000000000 00000000000000000 00000000000000000 11111111111111111 11111111111111111 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 )( 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 11111111111111111 11111111111111111 00000000000000000 00000000000000000 00000000000000000 00000000000000000 11111111111111111 11111111111111111 00000000000000000 00000000000000000 00000000000000000 00000000000000000 11111111111111111 11111111111111111 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 00000000000000000 Si-O-)2 Al-H]...
April 14, 2018: Chemical Science
https://www.readbyqxmd.com/read/29780453/-cis-oxoruthenium-complexes-supported-by-chiral-tetradentate-amine-n-4-ligands-for-hydrocarbon-oxidations
#16
Chun-Wai Tse, Yungen Liu, Toby Wai-Shan Chow, Chaoqun Ma, Wing-Ping Yip, Xiao-Yong Chang, Kam-Hung Low, Jie-Sheng Huang, Chi-Ming Che
We report the first examples of ruthenium complexes cis -[(N4 )RuIII Cl2 ]+ and cis -[(N4 )RuII (OH2 )2 ]2+ supported by chiral tetradentate amine ligands (N4 ), together with a high-valent cis -dioxo complex cis -[(N4 )RuVI (O)2 ]2+ supported by the chiral N4 ligand mcp (mcp = N , N '-dimethyl- N , N '-bis(pyridin-2-ylmethyl)cyclohexane-1,2-diamine). The X-ray crystal structures of cis -[(mcp)RuIII Cl2 ](ClO4 ) ( 1a ), cis -[(Me2 mcp)RuIII Cl2 ]ClO4 ( 2a ) and cis -[(pdp)RuIII Cl2 ](ClO4 ) ( 3a ) (Me2 mcp = N , N '-dimethyl- N , N '-bis((6-methylpyridin-2-yl)methyl)cyclohexane-1,2-diamine, pdp = 1,1'-bis(pyridin-2-ylmethyl)-2,2'-bipyrrolidine)) show that the ligands coordinate to the ruthenium centre in a cis -α configuration...
March 14, 2018: Chemical Science
https://www.readbyqxmd.com/read/29779131/production-and-characterization-of-exopolysaccharides-by-geobacillus-thermodenitrificans-arza-6-and-geobacillus-toebii-arza-8-strains-isolated-from-an-armenian-geothermal-spring
#17
Hovik Panosyan, Paola Di Donato, Annarita Poli, Barbara Nicolaus
The thermal ecosystems, including geothermal springs, are proving to be source of thermophiles able to produce extracellular polysaccharides (EPSs). Among the sixteen thermophilic bacilli isolated from sediment sampled from Arzakan geothermal spring, Armenia, two best EPSs producer strains were identified based on 16S rRNA gene sequence analysis and phenotypic characteristics, and designated as Geobacillus thermodenitrificans ArzA-6 and Geobacillus toebii ArzA-8 strains. EPSs production was investigated under different time, temperature and culture media's composition...
May 19, 2018: Extremophiles: Life Under Extreme Conditions
https://www.readbyqxmd.com/read/29778738/risk-adapted-therapy-for-young-children-with-medulloblastoma-sjyc07-therapeutic-and-molecular-outcomes-from-a-multicentre-phase-2-trial
#18
Giles W Robinson, Vasilisa A Rudneva, Ivo Buchhalter, Catherine A Billups, Sebastian M Waszak, Kyle S Smith, Daniel C Bowers, Anne Bendel, Paul G Fisher, Sonia Partap, John R Crawford, Tim Hassall, Daniel J Indelicato, Frederick Boop, Paul Klimo, Noah D Sabin, Zoltan Patay, Thomas E Merchant, Clinton F Stewart, Brent A Orr, Jan O Korbel, David T W Jones, Tanvi Sharma, Peter Lichter, Marcel Kool, Andrey Korshunov, Stefan M Pfister, Richard J Gilbertson, Robert P Sanders, Arzu Onar-Thomas, David W Ellison, Amar Gajjar, Paul A Northcott
BACKGROUND: Young children with medulloblastoma have a poor overall survival compared with older children, due to use of radiation-sparing therapy in young children. Radiotherapy is omitted or reduced in these young patients to spare them from debilitating long-term side-effects. We aimed to estimate event-free survival and define the molecular characteristics associated with progression-free survival in young patients with medulloblastoma using a risk-stratified treatment strategy designed to defer, reduce, or delay radiation exposure...
May 16, 2018: Lancet Oncology
https://www.readbyqxmd.com/read/29777975/geriatric-analysis-from-prodige-20-randomized-phase-ii-trial-evaluating-bevacizumab-chemotherapy-versus-chemotherapy-alone-in-older-patients-with-untreated-metastatic-colorectal-cancer
#19
T Aparicio, O Bouché, E Francois, F Retornaz, E Barbier, J Taieb, S Kirscher, P-L Etienne, R Faroux, F Khemissa Akouz, F El Hajbi, C Locher, Y Rinaldi, T Lecomte, S Lavau-Denes, M Baconnier, A Oden-Gangloff, D Genet, L Bedenne, E Paillaud
BACKGROUND: Older patients have frailty characteristics that impair the transposition of treatment results found in younger patients. Predictive factors are needed to help with treatment choices for older patients. The PRODIGE 20 study is a randomized phase II study that evaluated chemotherapy associated with bevacizumab (BEV) or not (CT) in patients aged 75 years or older. PATIENTS AND METHODS: Patients underwent a geriatric assessment at randomization and at each evaluation...
May 16, 2018: European Journal of Cancer
https://www.readbyqxmd.com/read/29777377/radiolabeled-f-ab-2-cetuximab-for-theranostic-purposes-in-colorectal-and-skin-tumor-bearing-mice-models
#20
P-S Bellaye, M Moreau, O Raguin, A Oudot, C Bernhard, J-M Vrigneaud, L Dumont, D Vandroux, F Denat, A Cochet, F Brunotte, B Collin
PURPOSE: This study aimed to investigate theranostic strategies in colorectal and skin cancer based on fragments of cetuximab, an anti-EGFR mAb, labeled with radionuclide with imaging and therapeutic properties, 111 In and 177 Lu, respectively. METHODS: We designed F(ab')2 -fragments of cetuximab radiolabeled with 111 In and 177 Lu. 111 In-F(ab')2 -cetuximab tumor targeting and biodistribution were evaluated by SPECT in BalbC nude mice bearing primary colorectal tumors...
May 17, 2018: Clinical & Translational Oncology
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