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https://www.readbyqxmd.com/read/29148744/the-fundamental-noninnocent-role-of-water-for-the-hydrogenation-of-nitrous-oxide-by-pnp-pincer-ru-based-catalysts
#1
Jesús A Luque-Urrutia, Albert Poater
The hydrogenation of nitrous oxide by PNP pincer ruthenium complexes supposes a promising way to functionalize a hazardous gas and reduce the greenhouse effect, generating dinitrogen and water. Here, by DFT calculations we describe not only the whole mechanism for such a green transformation but we unravel the fundamental role of water, without which the reaction could not go forward. Water assists mandatorily in the H transfer to generate the hydroxyl group together with the release of dinitrogen.
November 17, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/29113151/alternative-splicing-regulation-in-tumor-necrosis-factor-mediated-inflammation
#2
Eduardo López-Urrutia, Alma Campos-Parra, Luis Alonso Herrera, Carlos Pérez-Plasencia
It is generally accepted that alternative splicing has an effect on disease when it leads to conspicuous changes in relevant proteins, but that the combinatorial effect of several small modifications can have marked outcomes as well. Inflammation is a complex process involving numerous signaling pathways, among which the tumor necrosis factor (TNF) pathway is one of the most studied. Signaling pathways are commonly represented as intricate cascades of molecular interactions that eventually lead to the activation of one or several genes...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29103130/in-vitro-antimicrobial-activity-and-downregulation-of-virulence-gene-expression-on-helicobacter-pylori-by-reuterin
#3
Víctor Hugo Urrutia-Baca, Erandi Escamilla-García, Myriam Angélica de la Garza-Ramos, Patricia Tamez-Guerra, Ricardo Gomez-Flores, Cynthia Sofía Urbina-Ríos
Helicobacter pylori is an infectious agent commonly associated with gastrointestinal diseases. The use of probiotics to treat this infection has been documented, however, their potential antimicrobial metabolites have not yet been investigated. In the present study, the effect of reuterin produced by Lactobacillus reuteri on H. pylori growth and virulence gene expression was evaluated. It was observed that reuterin caused significant (P < 0.05) H. pylori growth inhibition at concentrations from 0.08 to 20...
November 4, 2017: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/29102540/sudden-hearing-loss-with-vertigo-portends-greater-stroke-risk-than-sudden-hearing-loss-or-vertigo-alone
#4
Tzu-Pu Chang, Zheyu Wang, Ariel A Winnick, Hsun-Yang Chuang, Victor C Urrutia, John P Carey, David E Newman-Toker
BACKGROUND: Because it is unknown whether sudden hearing loss (SHL) in acute vertigo is a "benign" sign (reflecting ear disease) or a "dangerous" sign (reflecting stroke), we sought to compare long-term stroke risk among patients with (1) "SHL with vertigo," (2) "SHL alone," and (3) "vertigo alone" using a large national health-care database. METHODS: Patients with first-incident SHL (International Classification of Diseases, Ninth Edition, Clinical Modification [ICD-9-CM] 388...
November 1, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/29100102/genetic-analysis-of-the-wild-strawberry-fragaria-vesca-volatile-composition
#5
María Urrutia, José L Rambla, Konstantinos G Alexiou, Antonio Granell, Amparo Monfort
The volatile composition of wild strawberry (Fragaria vesca) fruit differs from that of the cultivated strawberry, having more intense and fruity aromas. Over the last few years, the diploid F. vesca has been recognized as a model species for genetic studies of cultivated strawberry (F. x ananassa), and here a previously developed F. vesca/F. bucharica Near Isogenic Line collection (NIL) was used to explore genetic variability of fruit quality traits. Analysis of fruit volatiles by GC-MS in our NIL collection revealed a complex and highly variable profile...
October 25, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29099115/el-rendimiento-acad%C3%A3-mico-de-los-estudiantes-de-las-licenciaturas-de-m%C3%A3-dico-cirujano-y-fisioterapia-determinado-por-an%C3%A3-lisis-predictivo
#6
María Esther Urrutia Aguilar, Efrén Raúl Ponce Rosas, Silvia Ortiz León, Laura Peñaloza Ochoa, Rosalinda Guevara Guzmán
Objective: To identify and compare the predictive agents associated with medical students´ academic performance that are undertaking cellular biology and human histology, as well as those physiotherapists that take molecular, cellular and tissue biology. Methods: An academic follow up was carried out during school. Tools on previous knowledge, vocation, psychological and confrontational means were applied at the beginning of the school year; and the last two were applied two more times afterwards...
2017: Gaceta Médica de México
https://www.readbyqxmd.com/read/29099100/deficiencia-de-vitamina-d-y-su-asociaci%C3%A3-n-con-enfermedad-arterial-coronaria-en-poblaci%C3%A3-n-mexicana-estudio-gen%C3%A3-tico-de-la-enfermedad-aterosclerosa
#7
Fabiola López-Bautista, Carlos Posadas-Romero, Guillermo Cardoso-Saldaña, Juan Gabriel Juárez-Rojas, Aida Medina-Urrutia, Nonanzit Pérez-Hernández, José Manuel Rodríguez-Pérez, Gilberto Vargas-Alarcón, Rosalinda Posadas-Sánchez
Objective: To investigate the independent association between vitamin D deficiency (VDD) and coronary artery disease (CAD) in Mexican adult population. Method: Matched case-control study. Data cardiovascular on risk factors, medication use, physical activity, alcohol use, smoking and vitamin D consumption were obtained. Biochemical variables, anthropometric and blood pressure were measured. 25(OH)D was quantified by chemiluminescence. Results: We studied 250 patients with established CAD and 250 age-gender-body mass index (BMI) matched control subjects, with a mean age of 53 ± 6...
2017: Gaceta Médica de México
https://www.readbyqxmd.com/read/29094996/-incidence-of-hypophosphatemia-in-not-critically-ill-patients-with-enteral-feeding
#8
Maria Teresa Fernández López, Áurea María Gómez Márquez, Laura Casado Vázquez, Susana Alonso Urrutia, María Luisa Bardasco Alonso, María Teresa Rivero Luis, Eva Fernández Pérez, Susana Barreiros Blanco, María Teresa Alves Pérez, José Antonio Mato Mato
BACKGROUND: Up to 30-40% of the patients starting artificial nutritional support develop hypophosphatemia. In general, patients with mild and moderate hypophosphatemia do not have symptoms, but severe hypophosphatemia is the hallmark of refeeding syndrome. AIM: To determine the incidence of hypophosphatemia in not critically ill patients receiving enteral feeding. MATERIAL AND METHODS: Prospective study. We assessed during seven days 181 not critically ill patients started on enteral artificial nutrition support during seven days...
July 28, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/29075499/metformin-therapy-and-postoperative-atrial-fibrillation-in-diabetic-patients-after-cardiac-surgery
#9
Suresh Basnet, Andrzej Kozikowski, Haiyan Sun, Melissa Troup, Luis E Urrutia, Renee Pekmezaris
BACKGROUND: Postoperative atrial fibrillation (AF) commonly occurs in cardiac surgery patients. Studies suggest inflammation and oxidative stress contribute to postoperative AF development in this patient population. Metformin exerts an anti-inflammatory effect that reduces oxidative stress and thus may play a role in preventing postoperative AF. METHODS: We conducted a matched, retrospective cohort study of diabetic patients' age ≥18 undergoing a coronary artery bypass graft (CABG) and/or cardiac valve surgery from January 1, 2009, to November 30, 2014...
2017: Journal of Intensive Care
https://www.readbyqxmd.com/read/29040110/racial-differences-in-palliative-care-use-after-stroke-in-majority-white-minority-serving-and-racially-integrated-u-s-hospitals
#10
Roland Faigle, Wendy C Ziai, Victor C Urrutia, Lisa A Cooper, Rebecca F Gottesman
OBJECTIVES: Racial/ethnic differences in palliative care resource use after stroke have been recognized, but it is unclear whether patient or hospital characteristics drive this disparity. We sought to determine whether palliative care use after intracerebral hemorrhage and ischemic stroke differs between hospitals serving varying proportions of minority patients. DESIGN: Population-based cross-sectional study. SETTING: Inpatient hospital admissions from the Nationwide Inpatient Sample between 2007 and 2011...
December 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/29019945/micro-and-nanostructured-materials-for-the-development-of-optical-fibre-sensors
#11
REVIEW
Cesar Elosua, Francisco Javier Arregui, Ignacio Del Villar, Carlos Ruiz-Zamarreño, Jesus M Corres, Candido Bariain, Javier Goicoechea, Miguel Hernaez, Pedro J Rivero, Abian B Socorro, Aitor Urrutia, Pedro Sanchez, Pablo Zubiate, Diego Lopez-Torres, Nerea De Acha, Joaquin Ascorbe, Aritz Ozcariz, Ignacio R Matias
The measurement of chemical and biomedical parameters can take advantage of the features exclusively offered by optical fibre: passive nature, electromagnetic immunity and chemical stability are some of the most relevant ones. The small dimensions of the fibre generally require that the sensing material be loaded into a supporting matrix whose morphology is adjusted at a nanometric scale. Thanks to the advances in nanotechnology new deposition methods have been developed: they allow reagents from different chemical nature to be embedded into films with a thickness always below a few microns that also show a relevant aspect ratio to ensure a high transduction interface...
October 11, 2017: Sensors
https://www.readbyqxmd.com/read/28975492/sleeve-gastrectomy-outcomes-in-patients-with-bmi-between-30-and-35-3-years-of-follow-up
#12
Marcos A Berry, Lionel Urrutia, Patricio Lamoza, Alfredo Molina, Eduardo Luna, Federico Parra, María J Domínguez, Rodrigo Alonso
INTRODUCTION AND PURPOSE: Laparoscopic sleeve gastrectomy (LSG) in patients with a BMI between 30 and 35 kg/m(2) plus comorbidities has shown to be safe and effective. The purpose of this study is to describe our outcomes in this group of patients after 3 years of follow-up. MATERIALS AND METHODS: Retrospective descriptive analysis of patients with initial BMI between 30 and 35 kg/m(2) plus comorbidities were submitted to LSG between 2006 and 2013. We analyzed gender, age, comorbidities, BMI, total weight loss (%TWL), excess weight loss (%EWL), comorbidity resolution, morbidity, and mortality...
October 4, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28974648/prevalence-of-asthma-like-symptoms-with-ageing
#13
Debbie Jarvis, Roger Newson, Christer Janson, Angelo Corsico, Joachim Heinrich, Josep M Anto, Michael J Abramson, Anne-Marie Kirsten, Jan Paul Zock, Roberto Bono, Pascal Demoly, Bénédicte Leynaert, Chantal Raherison, Isabelle Pin, Thorarinn Gislason, Rain Jogi, Vivi Schlunssen, Cecilie Svanes, John Watkins, Joost Weyler, Antonio Pereira-Vega, Isabel Urrutia, Jose A Gullón, Bertil Forsberg, Nicole Probst-Hensch, H Marike Boezen, Jesús Martinez-Moratalla Rovira, Simone Accordini, Roberto de Marco, Peter Burney
BACKGROUND: Change in the prevalence of asthma-like symptoms in populations of ageing adults is likely to be influenced by smoking, asthma treatment and atopy. METHODS: The European Community Respiratory Health Survey collected information on prevalent asthma-like symptoms from representative samples of adults aged 20-44 years (29 centres in 13 European countries and Australia) at baseline and 10 and 20 years later (n=7844). Net changes in symptom prevalence were determined using generalised estimating equations (accounting for non-response through inverse probability weighting), followed by meta-analysis of centre level estimates...
October 3, 2017: Thorax
https://www.readbyqxmd.com/read/28963436/novel-nr2f1-variants-likely-disrupt-dna-binding-molecular-modeling-in-two-cases-review-of-published-cases-genotype-phenotype-correlation-and-phenotypic-expansion-of-the-bosch-boonstra-schaaf-optic-atrophy-syndrome
#14
Charu Kaiwar, Michael T Zimmerman, Matthew J Ferber, Zhiyv Niu, Raul A Urrutia, Eric W Klee, Dusica Babovic-Vuksanovic
Bosch-Boonstra-Schaaf Optic Atrophy Syndrome (BBSOAS) is a recently described autosomal dominant disorder caused by mutations in NR2F1 gene. There are presently 28 cases of BBSOAS described in the literature. Its common features include developmental delay, intellectual disability, hypotonia, optic nerve atrophy, attention deficit disorder, autism spectrum disorder, seizures, hearing defects, spasticity and thinning of the corpus callosum. Here we report two unrelated probands with novel, de novo, missense variants in NR2F1 The first is a 14-year-old male patient with hypotonia, intellectual disability, optic nerve hypoplasia, delayed bone age, short stature, and altered neurotransmitter levels on CSF testing...
September 28, 2017: Cold Spring Harbor Molecular Case Studies
https://www.readbyqxmd.com/read/28958611/clevidipine-for-hypertension-treatment-in-pheochromocytoma-surgery
#15
C Luis-García, E Arbonés-Aran, C Teixell-Aleu, L Lorente-Poch, L Trillo-Urrutia
Pheochromocytoma is a catecholamine-producing tumour and laparoscopic adrenalectomy is its treatment of choice. During pneumoperitoneum insufflation and tumour handling there is a high risk of massive catecholamine release and hypertensive crisis. After tumour excision, severe arterial hypotension is a common effect, due to relative vasodilation and the residual effect of antihypertensive drugs. We report the case of a patient with pheochromocytoma who was treated with laparoscopic adrenalectomy. During surgical manipulation there was a sudden hypertensive peak that could be controlled quickly with clevidipine infusion...
September 25, 2017: Revista Española de Anestesiología y Reanimación
https://www.readbyqxmd.com/read/28937467/does-the-prevalence-of-spondylolysis-and-spina-bifida-occulta-observed-in-pediatric-patients-remain-stable-in-adults
#16
Julio Urrutia, Tomas Zamora, Jorge Cuellar
STUDY DESIGN: Cross-sectional study. OBJECTIVE: To compare the prevalence of lumbar spondylolysis and spina bifida occulta (SBO) in pediatric and adult populations. SUMMARY OF BACKGROUND DATA: The prevalence of spondylolysis reported from radiograph-based studies in children had been questioned in computed tomography (CT)-based studies in adults; however, a recent CT-based study in pediatric patients has confirmed the previously reported data in pediatric populations...
October 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28898347/-the-problem-of-medical-approach-to-disability-an-interdisciplinary-challenge-between-health-education-and-law
#17
Jorge Eduardo Alfaro Urrutia
No abstract text is available yet for this article.
May 2017: Revista Médica de Chile
https://www.readbyqxmd.com/read/28892867/land-surface-temperature-as-an-indicator-of-the-unsaturated-zone-thickness-a-remote-sensing-approach-in-the-atacama-desert
#18
Harry Urqueta, Jorge Jódar, Christian Herrera, Hans-G Wilke, Agustín Medina, Javier Urrutia, Emilio Custodio, Jazna Rodríguez
Land surface temperature (LST) seems to be related to the temperature of shallow aquifers and the unsaturated zone thickness (∆Zuz). That relationship is valid when the study area fulfils certain characteristics: a) there should be no downward moisture fluxes in an unsaturated zone, b) the soil composition in terms of both, the different horizon materials and their corresponding thermal and hydraulic properties, must be as homogeneous and isotropic as possible, c) flat and regular topography, and d) steady state groundwater temperature with a spatially homogeneous temperature distribution...
January 15, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/28882125/evidence-mapping-based-on-systematic-reviews-of-therapeutic-interventions-for-gastrointestinal-stromal-tumors-gist
#19
Mónica Ballesteros, Nadia Montero, Antonio López-Pousa, Gerard Urrútia, Ivan Solà, Gabriel Rada, Hector Pardo-Hernandez, Xavier Bonfill
BACKGROUND: Gastrointestinal Stromal Tumours (GISTs) are the most common mesenchymal tumours. Currently, different pharmacological and surgical options are used to treat localised and metastatic GISTs, although this research field is broad and the body of evidence is scattered and expanding. Our objectives are to identify, describe and organise the current available evidence for GIST through an evidence mapping approach. METHODS: We followed the methodology of Global Evidence Mapping (GEM)...
September 7, 2017: BMC Medical Research Methodology
https://www.readbyqxmd.com/read/28807390/vancomycin-resistant-enterococcus-faecium-st17-outbreak-in-a-neonatal-unit
#20
Luis López-Urrutia, Mónica de Frutos, Jesús Oteo, José María Eiros
No abstract text is available yet for this article.
August 11, 2017: Enfermedades Infecciosas y Microbiología Clínica
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