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https://www.readbyqxmd.com/read/28430518/tunable-sign-change-of-spin-hall-magnetoresistance-in-pt-nio-yig-structures
#1
Dazhi Hou, Zhiyong Qiu, Joseph Barker, Koji Sato, Kei Yamamoto, Saül Vélez, Juan M Gomez-Perez, Luis E Hueso, Fèlix Casanova, Eiji Saitoh
Spin Hall magnetoresistance (SMR) has been investigated in Pt/NiO/YIG structures in a wide range of temperature and NiO thickness. The SMR shows a negative sign below a temperature that increases with the NiO thickness. This is contrary to a conventional SMR theory picture applied to the Pt/YIG bilayer, which always predicts a positive SMR. The negative SMR is found to persist even when NiO blocks the spin transmission between Pt and YIG, indicating it is governed by the spin current response of the NiO layer...
April 7, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28423557/correction-protective-role-of-p53-in-skin-cancer-carcinogenesis-studies-in-mice-lacking-epidermal-p53
#2
Angustias Page, Manuel Navarro, Cristian Suarez-Cabrera, Josefa P Alameda, M Llanos Casanova, Jesús M Paramio, Ana Bravo, Angel Ramirez
No abstract text is available yet for this article.
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28416003/characterization-and-risk-estimate-of-cancer-in-patients-with-primary-sj%C3%A3-gren-syndrome
#3
Pilar Brito-Zerón, Belchin Kostov, Guadalupe Fraile, Daniel Caravia-Durán, Brenda Maure, Francisco-Javier Rascón, Mónica Zamora, Arnau Casanovas, Miguel Lopez-Dupla, Mar Ripoll, Blanca Pinilla, Eva Fonseca, Miriam Akasbi, Gloria de la Red, Miguel-Angel Duarte-Millán, Patricia Fanlo, Pablo Guisado-Vasco, Roberto Pérez-Alvarez, Antonio J Chamorro, César Morcillo, Iratxe Jiménez-Heredia, Isabel Sánchez-Berná, Armando López-Guillermo, Manuel Ramos-Casals
BACKGROUND: The purpose of this study is to characterize the risk of cancer in a large cohort of patients with primary Sjögren syndrome (SjS). METHODS: We had analyzed the development of cancer in 1300 consecutive patients fulfilling the 2002 SjS classification criteria. The baseline clinical and immunological characteristics and systemic activity (ESSDAI scores) were assessed at diagnosis as predictors of cancer using Cox proportional hazards regression analysis adjusted for age at diagnosis and gender...
April 17, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28414293/inherited-gins1-deficiency-underlies-growth-retardation-along-with-neutropenia-and-nk-cell-deficiency
#4
Julien Cottineau, Molly C Kottemann, Francis P Lach, Young-Hoon Kang, Frédéric Vély, Elissa K Deenick, Tomi Lazarov, Laure Gineau, Yi Wang, Andrea Farina, Marie Chansel, Lazaro Lorenzo, Christelle Piperoglou, Cindy S Ma, Patrick Nitschke, Aziz Belkadi, Yuval Itan, Bertrand Boisson, Fabienne Jabot-Hanin, Capucine Picard, Jacinta Bustamante, Céline Eidenschenk, Soraya Boucherit, Nathalie Aladjidi, Didier Lacombe, Pascal Barat, Waseem Qasim, Jane A Hurst, Andrew J Pollard, Holm H Uhlig, Claire Fieschi, Jean Michon, Vladimir P Bermudez, Laurent Abel, Jean-Pierre de Villartay, Frédéric Geissmann, Stuart G Tangye, Jerard Hurwitz, Eric Vivier, Jean-Laurent Casanova, Agata Smogorzewska, Emmanuelle Jouanguy
Inborn errors of DNA repair or replication underlie a variety of clinical phenotypes. We studied 5 patients from 4 kindreds, all of whom displayed intrauterine growth retardation, chronic neutropenia, and NK cell deficiency. Four of the 5 patients also had postnatal growth retardation. The association of neutropenia and NK cell deficiency, which is unusual among primary immunodeficiencies and bone marrow failures, was due to a blockade in the bone marrow and was mildly symptomatic. We discovered compound heterozygous rare mutations in Go-Ichi-Ni-San (GINS) complex subunit 1 (GINS1, also known as PSF1) in the 5 patients...
April 17, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28411220/the-global-transcription-factor-lrp-is-both-essential-for-and-inhibitory-to-xenorhabdus-nematophila-insecticidal-activity
#5
Ángel M Casanova-Torres, Upasana Shokal, Neta Morag, Ioannis Eleftherianos, Heidi Goodrich-Blair
In the entomopathogenic bacterium Xenorhabdus nematophila, cell-to-cell variation in the abundance of the Lrp transcription factor leads to virulence modulation: low Lrp levels are associated with a virulent phenotype and suppression of antimicrobial peptides (AMPs) in Manduca sexta insects, while cells that lack lrp or express high Lrp levels are virulence attenuated and elicit AMP expression. To better understand the basis of these phenotypes we examined X. nematophila expressing fixed Lrp levels. Unlike the lrp null mutant, the high-lrp strain is fully virulent in Drosophila melanogaster suggesting that these two strains have distinct underlying causes of virulence attenuation in M...
April 14, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28407775/telomere-shortening-and-accelerated-aging-in-copd-findings-from-the-bode-cohort
#6
Córdoba-Lanús Elizabeth, Cazorla-Rivero Sara, Espinoza-Jiménez Adriana, Juan P de-Torres, Pajares María-José, Aguirre-Jaime Armando, Celli Bartolomé, Casanova Ciro
BACKGROUND: Chronic Obstructive Pulmonary Disease (COPD) may be associated with accelerated aging. Telomere shortening is a biomarker of aging. Cross-sectional studies describe shorter telomeres in COPD compared with matched controls. No studies have described telomere length trajectory and its relationship with COPD progression. We investigated telomere shortening over time and its relationship to clinical and lung function parameters in a COPD cohort and smoker controls without COPD...
April 13, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28403318/screening-for-symptoms-of-anxiety-and-depression-in-patients-admitted-to-a-university-hospital-with-acute-coronary-syndrome
#7
Carolina Casanova Meneghetti, Bruno Luiz Guidolin, Paulo Roberto Zimmermann, Ana Sfoggia
Objective: To investigate the prevalence of anxiety and depression in patients admitted for acute coronary syndrome to a university hospital and to examine associations with use of psychotropic drugs. Methods: Ninety-one patients who had had an acute coronary event were enrolled on this cross-sectional prevalence study. Characteristics of the study population and the prevalence rates of depression and anxiety in the sample were assessed using the Hospital São Lucas da Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS) psychiatric consultation protocol, which includes clinical and sociodemographic data, and the Hospital Anxiety and Depression Scale (HADS)...
January 2017: Trends in Psychiatry and Psychotherapy
https://www.readbyqxmd.com/read/28402793/lichenomphalia-altoandina-a-new-species-of-hygrophoraceae-from-the-chilean-altiplano
#8
P Sandoval-Leiva, N Niveiro, R Urbina-Casanova, R Scherson
Lichenomphalia is a lichenized agaric genus characterized by its omphalinoid basidiomes. Lichenomphalia species are associated with unicellular green algae in the genus Coccomyxa and are mainly distributed in polar and alpine habitats. The aim of this work is to describe L. altoandina, a new species from northern Chile that grows among cushion plants over 3000 m above sea level in the Andes Mountains. The species is remarkable for living in highly saline environments, in some cases virtually on salt crusts...
2017: Mycologia
https://www.readbyqxmd.com/read/28396953/autologous-hematopoietic-stem-cell-transplantation-in-relapsing-remitting-multiple-sclerosis-comparison-with-secondary-progressive-multiple-sclerosis
#9
Bonaventura Casanova, Isidro Jarque, Francisco Gascón, Juan Carlos Hernández-Boluda, Francisco Pérez-Miralles, Javier de la Rubia, Carmen Alcalá, Jaime Sanz, Javier Mallada, Angeles Cervelló, Arantxa Navarré, María Carcelén-Gadea, Isabel Boscá, Sara Gil-Perotin, Carlos Solano, Miguel Angel Sanz, Francisco Coret
The main objective of our work is to describe the long-term results of myeloablative autologous hematopoietic stem cell transplant (AHSCT) in multiple sclerosis patients. Patients that failed to conventional therapies for multiple sclerosis (MS) underwent an approved protocol for AHSCT, which consisted of peripheral blood stem cell mobilization with cyclophosphamide and granulocyte colony-stimulating factor (G-CSF), followed by a conditioning regimen of BCNU, Etoposide, Ara-C, Melphalan IV, plus Rabbit Thymoglobulin...
April 10, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28389612/benefits-of-emergency-departments-contribution-to-stroke-prophylaxis-in-atrial-fibrillation-the-emerg-af-study-emergency-department-stroke-prophylaxis-and-guidelines-implementation-in-atrial-fibrillation
#10
Blanca Coll-Vinent, Alfonso Martín, Juan Sánchez, Juan Tamargo, Coral Suero, Francisco Malagón, Mercedes Varona, Manuel Cancio, Susana Sánchez, José Carbajosa, José Ríos, Georgina Casanovas, Carles Ràfols, Carmen Del Arco
BACKGROUND AND PURPOSE: Long-term benefits of initiating stroke prophylaxis in the emergency department (ED) are unknown. We analyzed the long-term safety and benefits of ED prescription of anticoagulation in atrial fibrillation patients. METHODS: Prospective, multicenter, observational cohort of consecutive atrial fibrillation patients was performed in 62 Spanish EDs. Clinical variables and thromboprophylaxis prescribed at discharge were collected at inclusion...
April 7, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28386575/comparing-diffuse-optical-tomography-and-functional-magnetic-resonance-imaging-signals-during-a-cognitive-task-pilot-study
#11
Estefania Hernández-Martin, Francisco Marcano, Oscar Casanova, Cristian Modroño, Julio Plata-Bello, Jose Luis González-Mora
Diffuse optical tomography (DOT) measures concentration changes in both oxy- and deoxyhemoglobin providing three-dimensional images of local brain activations. A pilot study, which compares both DOT and functional magnetic resonance imaging (fMRI) volumes through t-maps given by canonical statistical parametric mapping (SPM) processing for both data modalities, is presented. The DOT series were processed using a method that is based on a Bayesian filter application on raw DOT data to remove physiological changes and minimum description length application index to select a number of singular values, which reduce the data dimensionality during image reconstruction and adaptation of DOT volume series to normalized standard space...
January 2017: Neurophotonics
https://www.readbyqxmd.com/read/28386450/nanoindentation-analysis-of-the-micromechanical-anisotropy-in-mouse-cortical-bone
#12
Michele Casanova, Anna Balmelli, Davide Carnelli, Diana Courty, Philipp Schneider, Ralph Müller
Studies investigating micromechanical properties in mouse cortical bone often solely focus on the mechanical behaviour along the long axis of the bone. Therefore, data on the anisotropy of mouse cortical bone is scarce. The aim of this study is the first-time evaluation of the anisotropy ratio between the longitudinal and transverse directions of reduced modulus and hardness in mouse femurs by using the nanoindentation technique. For this purpose, nine 22-week-old mice (C57BL/6) were sacrificed and all femurs extracted...
February 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28374591/diversity-and-hierarchy-in-supramolecular-assemblies-of-triphenylalanine-from-laminated-helical-ribbons-to-toroids
#13
Enric Mayans, Jordi Casanovas, Ana M Gil, Ana I Jiménez, Carlos Cativiela, Jordi Puiggalí, Carlos Alemán
Microstructures from small phenylalanine-based peptides have attracted great attention lately because these compounds are considered to be a new class of tunable materials. In spite of the extensive studies on uncapped diphenylalanine and tetraphenylalanine peptides, studies on the self-assembly of uncapped triphenylananine (FFF) are very scarce and nonsystematic. In this work, we demonstrate that FFF assemblies can organize in a wide number of well-defined supramolecular structures, which include laminated helical-ribbons, leaflike dendrimers, doughnut-, needle-, and flower-shapes...
April 11, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28367267/obesity-downregulates-microrna-126-inducing-capillary-rarefaction-in-skeletal-muscle-effects-of-aerobic-exercise-training
#14
João Lucas Penteado Gomes, Tiago Fernandes, Ursula Paula Reno Soci, André Casanova Silveira, Diego Lopes Mendes Barretti, Carlos Eduardo Negrão, Edilamar Menezes Oliveira
Background. We investigated the effects of exercise training (ET) on miR-126 levels and skeletal muscle angiogenesis in obese Zucker rats. Results. Zucker rats were randomly assigned to sedentary and swimming-trained groups: lean sedentary (LS) and trained (LTR); obese sedentary (OB) and trained (OBTR). The OB group displayed capillary rarefaction compared with the LS group. In contrast, ET increased the capillary/fiber ratio by 38% in the LTR group and normalized capillary rarefaction in the OBTR group. VEGF, PI3K, and eNOS levels were reduced in the skeletal muscle of the OB group...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28366421/-18-f-choline-pet-ct-scan-in-staging-and-biochemical-recurrence-in-prostate-cancer-patients-changes-in-classification-and-radiotherapy-planning
#15
J Cardona Arboniés, B Rodríguez Alfonso, J Mucientes Rasilla, C Martínez Ballesteros, I Zapata Paz, A Prieto Soriano, J Carballido Rodriguez, M Mitjavila Casanovas
OBJECTIVE: To evaluate the role of the (18)F-Choline PET/CT in prostate cancer management when detecting distant disease in planning radiotherapy and staging and to evaluate the therapy changes guided by PET/TC results. MATERIAL AND METHODS: A retrospective evaluation was performed on (18)F-Choline PET/CT scans of patients with prostate cancer. Staging and planning radiotherapy scans were selected in patients with at least 9 months follow up. There was a total of 56 studies, 33 (58...
March 30, 2017: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/28364001/morphoproteomic-characterization-of-lung-squamous-cell-carcinoma-fragmentation-a-histological-marker-of-increased-tumor-invasiveness
#16
Ruben Casanova, Daniel Xia, Undīne Rulle, Paolo Nanni, Jonas Grossmann, Bart Vrugt, Reto Wettstein, Rafael Ballester, Alberto Astolfo, Walter Weder, Holger Moch, Marco Stampanoni, Andrew H Beck, Alex Soltermann
Accurate stratification of tumors is imperative for adequate cancer management. In addition to staging, morphological subtyping allows stratification of patients into additional prognostic groups. In this study, we used an image-based computational method on pan-cytokeratin immunohistochemical (IHC) stainings to quantify tumor fragmentation (TF), a measure of tumor invasiveness of lung squamous cell carcinoma (LSCC). In two independent clinical cohorts from tissue microarrays (TMA: n=208 patients) and whole sections (WS: n=99 patients), TF was associated with poor prognosis and increased risk of blood vessel infiltration...
March 31, 2017: Cancer Research
https://www.readbyqxmd.com/read/28359509/autosomal-recessive-cardiomyopathy-presenting-as-acute-myocarditis
#17
Serkan Belkaya, Amy R Kontorovich, Minji Byun, Sonia Mulero-Navarro, Fanny Bajolle, Aurelie Cobat, Rebecca Josowitz, Yuval Itan, Raphaelle Quint, Lazaro Lorenzo, Soraya Boucherit, Cecile Stoven, Sylvie Di Filippo, Laurent Abel, Shen-Ying Zhang, Damien Bonnet, Bruce D Gelb, Jean-Laurent Casanova
BACKGROUND: Myocarditis is inflammation of the heart muscle that can follow various viral infections. Why children only rarely develop life-threatening acute viral myocarditis (AVM), given that the causal viral infections are common, is unknown. Genetic lesions might underlie such susceptibilities. Mouse genetic studies demonstrated that interferon (IFN)-α/β immunity defects increased susceptibility to virus-induced myocarditis. Moreover, variations in human TLR3, a potent inducer of IFNs, were proposed to underlie AVM...
April 4, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28359285/atypical-periodic-alternating-nystagmus-responding-to-high-dose-intravenous-immunoglobulins-a-case-report
#18
Herminia Argente-Escrig, Luis Bataller, Claudio Krstulovic Roa, Vanesa Pérez Guillén, Herminio Perez Garrigues, Bonaventura Casanova Estruch
BACKGROUND: Acquired periodic alternating nystagmus (PAN) is a rare but well-defined syndrome that consists of a horizontal nystagmus that cyclically reverses its direction. PAN can be caused by degenerative, neoplastic, or toxic diseases of the cerebellum and, in a few cases, by subacute cerebellar ataxia of immune origin. CASE PRESENTATION: A 44-year-old man came to our attention because of rapidly progressive gait instability and blurred vision. Clinical examination showed PAN and a mild pancerebellar syndrome...
March 31, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28357418/distribution-of-dopant-ions-around-poly-3-4-ethylenedioxythiophene-chains-a-theoretical-study
#19
Jordi Casanovas, David Zanuy, Carlos Alemán
The effect of counterions and multiple polymer chains on the properties and structure of poly(3,4-ethylenedioxythiophene) (PEDOT) doped with ClO4(-) has been examined using density functional theory (DFT) calculations with periodic boundary conditions (PBCs). Calculations on a one-dimensional periodic model with four explicit polymer repeat units and two ClO4(-) molecules indicate that the latter are separated as much as possible, with the salt structure and band gap obtained from such ClO4(-) distribution being in excellent agreement with those determined experimentally...
April 12, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28345930/palladium-catalyzed-formal-5-2-annulation-between-ortho-alkenylanilides-and-allenes
#20
Borja Cendón, Noelia Casanova, Cezar Comanescu, Rebeca García-Fandiño, Andrés Seoane, Moisés Gulías, José L Mascareñas
2-Alkenyltriflylanilides react with allenes upon treatment with catalytic amounts of Pd(OAc)2 and Cu(II) to give highly valuable 2,3-dihydro-1H-benzo[b]azepines, in good yields, and with very high regio- and diastereoselectivities. Density functional theory (DFT) calculations suggest that the C-H activation of the alkenylanilide involves a classical concerted metalation-deprotonation (CMD) mechanism.
April 7, 2017: Organic Letters
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