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https://www.readbyqxmd.com/read/28346783/dicarbonyls-of-carbon-and-methylidyne-cations
#1
Jiaye Jin, Lili Zhao, Xiaonan Wu, Wei Li, Yuhong Liu, Diego M Andrada, Mingfei Zhou, Gernot Frenking
The carbon suboxide cation C3O2+ and the protonated carbon suboxide HC3O2+/DC3O2+ were produced in the gas phase. The vibrational spectra were measured via infrared photodissociation spectroscopy of their argon- or CO-tagged complexes. Spectroscopic evidence combined with state-of-the-art quantum chemical calculations indicate that both cations have a bent C2v symmetry and can be designated as dicarbonyls of carbon cation and methylidyne cation, respectively.
March 27, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28346000/assessment-of-the-potential-efficacy-of-blind-perineural-injection-techniques-for-blockade-of-the-saphenous-obturator-and-lateral-cutaneous-femoral-nerves-in-dog-cadavers
#2
Diego F Echeverry-Bonilla, Jessica T Pelaez, Edwin F Buriticá, Francisco G Laredo
OBJECTIVE To evaluate the potential efficacy of blind perineural injection techniques to provide nerve blockade of the saphenous, obturator, and lateral cutaneous femoral nerves by assessing the distribution along those nerves of 3 volumes of an injected staining solution in dog cadavers. ANIMALS 18 canine cadavers. PROCEDURES The anatomic characteristics of the target nerves were evaluated by dissection in 3 cadavers. The saphenous nerve was located by the use of superficial anatomic landmarks and a loss-of-resistance test...
April 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28345798/multimetallic-and-mixed-environment-iridium-iii-complexes-a-modular-approach-to-luminescence-tuning-using-a-host-platform
#3
Victoria Pritchard, Diego Rota Martir, Eli Zysman-Colman, Michaele Jane Hardie
Mononuclear and trinuclear bis-cyclometalled Ir(III) complexes of the host ligands tris(4-[4'-methyl-2,2'-bipyridyl]methyl)cyclotriguaiacylene (L1) and tris(4-(4'-methyl-2,2'-bipyridyl)carboxy)cyclotriguaiacylene (L2) have been prepared. Complexes [{Ir(ppy)2}3(L1)](PF6)3 1.1, [{Ir(ppy)2}(L1)](PF6)3 1.2, [{Ir(ppy)2}3(L2)](PF6)3 2.1 and [{Ir(ppy)2}(L2)](PF6)3 2.2 (where ppy = phenylpyridinato) showed distinct photophysical properties according to L-ligand with L1 complexes comparatively blue-shifted in solution, with longer lifetimes and higher quantum yields...
March 27, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28345676/bioconversion-of-stilbenes-in-genetically-engineered-root-and-cell-cultures-of-tobacco
#4
Diego Hidalgo, Ascensión Martínez-Márquez, Elisabeth Moyano, Roque Bru-Martínez, Purificación Corchete, Javier Palazon
It is currently possible to transfer a biosynthetic pathway from a plant to another organism. This system has been exploited to transfer the metabolic richness of certain plant species to other plants or even to more simple metabolic organisms such as yeast or bacteria for the production of high added value plant compounds. Another application is to bioconvert substrates into scarcer or biologically more interesting compounds, such as piceatannol and pterostilbene. These two resveratrol-derived stilbenes, which have very promising pharmacological activities, are found in plants only in small amounts...
March 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28345254/direct-functionalization-of-poly-spirophosphazene-s-via-the-regioselective-lithiation-of-the-aromatic-rings-using-a-cooperative-superbase
#5
Raquel de la Campa, Diego García, Sandra Rodríguez, Gabino A Carriedo, Alejandro Presa Soto
The direct chemical functionalization of poly(spirophosphazene) [NP(O2 C12 H8 )]n (1) can be performed by the lithiation of the aromatic rings at low temperature using Schlosser's base (Li(t) Bu/KO(t) Bu or "superbase"), and the subsequent reaction with various electrophiles such as ClSiMe3 , ClPPh2 , or MeOB(O2 C6 H12 ) (MeOBpin). The functionalized polymers, isolated in very high yields (>90%) and without degradation of the polymeric chains, have an average degree of substitution per repeat unit ranging from 0...
March 27, 2017: Macromolecular Rapid Communications
https://www.readbyqxmd.com/read/28345211/3d-echocardiographic-analysis-of-aortic-annulus-for-transcatheter-aortic-valve-replacement-using-novel-aortic-valve-quantification-software-comparison-with-computed-tomography
#6
Anuj Mediratta, Karima Addetia, Diego Medvedofsky, Robert J Schneider, Eric Kruse, Atman P Shah, Sandeep Nathan, Jonathan D Paul, John E Blair, Takeyoshi Ota, Husam H Balkhy, Amit R Patel, Victor Mor-Avi, Roberto M Lang
BACKGROUND: With the increasing use of transcatheter aortic valve replacement (TAVR) in patients with aortic stenosis (AS), computed tomography (CT) remains the standard for annulus sizing. However, 3D transesophageal echocardiography (TEE) has been an alternative in patients with contraindications to CT. We sought to (1) test the feasibility, accuracy, and reproducibility of prototype 3DTEE analysis software (Philips) for aortic annular measurements and (2) compare the new approach to the existing echocardiographic techniques...
March 27, 2017: Echocardiography
https://www.readbyqxmd.com/read/28344793/correlation-between-adenoma-detection-rate-in-colonoscopy-and-fecal-immunochemical-testing-based-colorectal-cancer-screening-programs
#7
Joaquín Cubiella, Antoni Castells, Montserrat Andreu, Luis Bujanda, Fernando Carballo, Rodrigo Jover, Ángel Lanas, Juan Diego Morillas, Dolores Salas, Enrique Quintero
BACKGROUND: The adenoma detection rate (ADR) is the main quality indicator of colonoscopy. The ADR recommended in fecal immunochemical testing (FIT)-based colorectal cancer screening programs is unknown. METHODS: Using the COLONPREV (NCT00906997) study dataset, we performed a post-hoc analysis to determine if there was a correlation between the ADR in primary and work-up colonoscopy, and the equivalent figure to the minimal 20% ADR recommended. Colonoscopy was performed in 5722 individuals: 5059 as primary strategy and 663 after a positive FIT result (OC-Sensor™; cut-off level 15 µg/g of feces)...
March 2017: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/28344579/reslizumab-and-eosinophilic-asthma-one-step-closer-to-precision-medicine
#8
REVIEW
Gilda Varricchi, Gianenrico Senna, Stefania Loffredo, Diego Bagnasco, Matteo Ferrando, Giorgio Walter Canonica
Human eosinophils represent approximately 1% of peripheral blood leukocytes. However, these cells have the propensity to leave the blood stream and migrate into inflamed tissues. Eosinophilic inflammation is present in a significant proportion of patients with severe asthma. Asthma is a chronic inflammatory disorder that affects more than 315 million people worldwide, with 10% having severe uncontrolled disease. Although the majority of patients can be efficiently treated, severe asthmatics continue to be uncontrolled and are at risk of exacerbations and even death...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28344561/fetal-growth-restriction-induces-heterogeneous-effects-on-vascular-biomechanical-and-functional-properties-in-guinea-pigs-cavia-porcellus
#9
Daniel Cañas, Emilio A Herrera, Claudio García-Herrera, Diego Celentano, Bernardo J Krause
Aim: Fetal growth restriction (FGR) is associated with a variety of cardiometabolic diseases in adulthood which could involve remodeling processes of the vascular walls that could start in the fetal period. However, there is no consensus whether this remodeling affects in a similar way the whole vascular system. We aimed to determine the effects of FGR on the vasoactive and biomechanical properties of umbilical and systemic vessels in fetal guinea pigs. Methods: FGR was induced by implanting ameroid occluders at mid-gestation in uterine arteries of pregnant guinea pigs, whilst the control group was exposed to simulated surgery...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28344204/atrial-septum-hematoma%C3%A3-another-way-to-die-in-acute-aortic-dissection
#10
Juan Carlos Gómez-Polo, Isidre Vilacosta, Estela Aguilar-Navarro, Carlos Ferrera, Sandra Rosillo, Guillermo García-Diego, Carmen Olmos, Pedro Martínez-Losas, David Vivas, Francisco J Noriega-Sanz, Ana Viana-Tejedor, Luis Ortega
No abstract text is available yet for this article.
March 25, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28343896/assessment-of-hepatic-function-decline-after-stereotactic-body-radiation-therapy-for-primary-liver-cancer
#11
Diego A S Toesca, Evan C Osmundson, Rie von Eyben, Jenny L Shaffer, Albert C Koong, Daniel T Chang
PURPOSE: This study aims to determine how the albumin-bilirubin (ALBI) score compares with the Child-Pugh (CP) score for assessing liver function following stereotactic body radiation therapy (SBRT). METHODS AND MATERIALS: In total, 60 patients, 40 with hepatocellular carcinoma (HCC) and 20 with cholangiocarcinoma (CCA), were treated with SBRT. Liver function panels were obtained before and at 1, 3, 6, and 12 months after SBRT. Laboratory values were censored after locoregional recurrence, further liver-directed therapies, or liver transplant...
October 17, 2016: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28343843/%C3%AE-s1-casein-elucidate-major-t-cell-responses-in-cow-s-milk-allergy
#12
L Diego Archila, Fatima S Khan, Nupur Bhatnagar, David Robinson, Mary L Farrington, William W Kwok
Cow's milk allergy (CMA) is increasing in prevalence, affecting approximately 4% of children. Cow's milk (CM) is a common cause of fatal/ near fatal anaphylactic reactions. Understanding of CM-specific CD4+ T-cells responses to milk allergens should help elucidate the pathological mechanisms of persistent CMA. Milk allergen epitopes specific T-cells were examined in CMA subjects. Frequencies and phenotypes of these T-cells were found to be different between older and younger subjects.
March 23, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28343032/tissue-depletion-study-of-enrofloxacin-and-its-metabolite-ciprofloxacin-in-broiler-chickens-after-oral-administration-of-a-new-veterinary-pharmaceutical-formulation-containing-enrofloxacin
#13
Karina P D Bonassa, Miwa Y Miragliotta, Rosineide C Simas, Diego A Monteiro, Marcos N Eberlin, Arturo Anadón, Felix G R Reyes
No abstract text is available yet for this article.
March 23, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28343016/evaluation-of-antitumor-activity-and-cardiac-toxicity-of-a-bone-targeted-ph-sensitive-liposomal-formulation-in-a-bone-metastasis-tumor-model-in-mice
#14
Diego Dos Santos Ferreira, Bruno Luís Jesus de Oliveira Pinto, Vidhya Kumar, Valbert Nascimento Cardoso, Simone Odília Fernandes, Cristina Maria Souza, Geovanni Dantas Cassali, Anna Moore, David Sosnovik, Christian Farrar, Elaine Amaral Leite, Ricardo José Alves, Mônica Cristina de Oliveira, Alexander Ramos Guimarães, Peter Caravan
Chemotherapy for bone tumors is a major challenge because of the inability of therapeutics to penetrate dense bone mineral. We hypothesize that a nanostructured formulation with high affinity for bone could deliver drug to the tumor while minimizing off-target toxicity. Here, we evaluated the efficacy and toxicity of a novel bone-targeted, pH-sensitive liposomal formulation containing doxorubicin in an animal model of bone metastasis. Biodistribution studies with the liposome showed good uptake in tumor, but low accumulation of doxorubicin in the heart...
March 22, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28342644/steeper-slope-of-age-related-changes-in-white-matter-microstructure-and-processing-speed-in-bipolar-disorder
#15
Sheena I Dev, Tanya T Nguyen, Benjamin S McKenna, Ashley N Sutherland, Hauke Bartsch, Rebecca J Theilmann, Lisa T Eyler
OBJECTIVES: Bipolar disorder (BD) is associated with compromised white matter (WM) integrity and deficits in processing speed (PS). Few studies, however, have investigated age relationships with WM structure and cognition to understand possible changes in brain health over the lifespan. This investigation explored whether BD and healthy counterpart (HC) participants exhibited differential age-related associations with WM and cognition, which may be suggestive of accelerated brain and cognitive aging...
February 16, 2017: American Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28341975/longitudinal-volumetric-and-2d-assessment-of-cerebellar-atrophy-in-a-large-cohort-of-children-with-phosphomannomutase-deficiency-pmm2-cdg
#16
Víctor de Diego, Antonio F Martínez-Monseny, Jordi Muchart, Daniel Cuadras, Raquel Montero, Rafael Artuch, Celia Pérez-Cerdá, Belén Pérez, Belén Pérez-Dueñas, Andrea Poretti, Mercedes Serrano
OBJECTIVE: We aim to delineate the progression of cerebellar atrophy (the primary neuroimaging finding) in children with phosphomannomutase-deficiency (PMM2-CDG) by analyzing longitudinal MRI studies and performing cerebellar volumetric analysis and a 2D cerebellar measurement. METHODS: Statistical analysis was used to compare MRI measurements [midsagittal vermis relative diameter (MVRD) and volume] of children with PMM2-CDG and sex- and age-matched controls, and to determine the rate of progression of cerebellar atrophy at different ages...
March 24, 2017: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/28341583/a-story-of-birth-and-death-insights-into-the-formation-and-dynamics-of-the-microglial-population
#17
REVIEW
Katharine Askew, Diego Gomez-Nicola
Microglia are the main resident immunocompetent cells of the brain with key roles in brain development, homeostasis and function. Here we briefly review our current knowledge of the homeostatic mechanisms regulating the composition and turnover of the microglial population under physiological conditions from development to ageing. A greater understanding of these mechanisms may inform understanding of how dysregulation of microglial dynamics could contribute to the pathogenesis and/or progression of neurological disorders...
March 21, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28341369/effects-of-the-exercise-in-hypoxia-muscular-and-heart-adaptations-is-healthy-training-in-modified-hypoxy
#18
Alfredo Córdova Martínez, Jorge Pascual Fernández, Diego Fernandez Lázaro, Melchor Alvarez Mon
No abstract text is available yet for this article.
March 21, 2017: Medicina Clínica
https://www.readbyqxmd.com/read/28341217/lemmel-s-syndrome-obstructive-jaundice-secondary-to-a-duodenal-diverticulum
#19
María Carmona Agúndez, Diego López Guerra, Juana Fernández Pérez, Gerardo Blanco Fernández
No abstract text is available yet for this article.
March 21, 2017: Cirugía Española
https://www.readbyqxmd.com/read/28340745/virgin-olive-oil-stability-study-by-mesh-cell-ftir-spectroscopy
#20
Noelia Tena, Ramón Aparicio, Diego L García-González
Mesh cell is a rapid tool designed to monitor chemical changes that occurs as a consequence of oxidation at moderate conditions. In this study this accessory has been proposed for assessing virgin olive oil (VOO) stability by Fourier transform infrared (FTIR) spectroscopy. Monocultivar VOOs have been stored in mesh cells under different temperatures (at 23, 35, 65°C) simulating the real conditions during storage and transport (<60°C). In addition to temperature, the samples have been also stored in mesh cells at different light intensities (400, 1000, 7000lx) to evaluate the resistance of the samples to photooxidation...
May 15, 2017: Talanta
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