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https://www.readbyqxmd.com/read/28306724/respiratory-dna-viruses-are-undetectable-in-nasopharyngeal-secretions-from-adenotonsillectomized-children
#1
Ronaldo Bragança Martins, Lucas Penna Rocha, Mirela Moreira Prates, Talita Bianca Gagliardi, Balduino Biasoli, Marcelo Junqueira Leite, Guilherme Buzatto, Miguel Angelo Hyppolito, Davi Casale Aragon, Edwin Tamashiro, Fabiana Cardoso Pereira Valera, Eurico Arruda, Wilma Terezinha Anselmo-Lima
Respiratory viruses are frequently detected in association with chronic tonsillar hypertrophy in the absence of symptoms of acute respiratory infection (ARI). The present analysis was done in follow-up to a previous clinical study done by this same group. Nasopharyngeal washes (NPWs) were obtained from 83 of 120 individuals at variable times post adenotonsillectomy, in the absence of ARI symptoms. A look back at virus detection results in NPWs from the same 83 individuals at the time of tonsillectomy revealed that 73...
2017: PloS One
https://www.readbyqxmd.com/read/28306713/trypanocidal-effect-of-isotretinoin-through-the-inhibition-of-polyamine-and-amino-acid-transporters-in-trypanosoma-cruzi
#2
Chantal Reigada, Edward A Valera-Vera, Melisa Sayé, Andrea E Errasti, Carla C Avila, Mariana R Miranda, Claudio A Pereira
Polyamines are essential compounds to all living organisms and in the specific case of Trypanosoma cruzi, the causative agent of Chagas disease, they are exclusively obtained through transport processes since this parasite is auxotrophic for polyamines. Previous works reported that retinol acetate inhibits Leishmania growth and decreases its intracellular polyamine concentration. The present work describes a combined strategy of drug repositioning by virtual screening followed by in vitro assays to find drugs able to inhibit TcPAT12, the only polyamine transporter described in T...
March 17, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28302031/hif1a-is-overexpressed-in-medulloblastoma-and-its-inhibition-reduces-proliferation-and-increases-epas1-and-atg16l1-methylation
#3
Gustavo Alencastro Veiga Cruzeiro, Maristella Bergamo Dos Reis, Vanessa Silva Silveira, Régia Caroline Peixoto Lira, Carlos Gilberto Carlotti, Luciano Neder, Ricardo Santos Oliveira, José Andres Yunes, Silvia Regina Brandalise, Simone Aguiar, Agda Karina Eterovic, Luiz Gonzaga Tone, Carlos Alberto Scrideli, Elvis Terci Valera
BACKGROUND: Genetic and epigenetic modifications are closely related to tumor initiation and progression and can provide guidance for understanding tumor functioning, potentially leading to the discovery of new therapies. Studies have associated hypoxia-related genes to tumor progression and chemo/radioresistance in brain tumors. Information on the expression profile of hypoxia-related genes in pediatric medulloblastoma, although scarce, may reveal relevant information that could support treatment decisions...
March 15, 2017: Current Cancer Drug Targets
https://www.readbyqxmd.com/read/28301547/epidermal-loss-of-g%C3%AE-q-confers-a-migratory-and-differentiation-defect-in-keratinocytes
#4
Colleen L Doçi, Constantinos M Mikelis, Juan Luis Callejas-Valera, Karina K Hansen, Alfredo A Molinolo, Asuka Inoue, Stefan Offermanns, J Silvio Gutkind
G-protein coupled receptors (GPCRs), which activate heterotrimeric G proteins, are an essential class of transmembrane receptors that are responsible for a myriad of signaling events in normal and pathologic conditions. Two members of the G protein family, Gαq and Gα11, activate one of the main GPCR pathways and function as oncogenes by integrating mitogen-stimulated signaling cascades that are active under malignant conditions. Recently, it has been shown that targeted deletion of Gα11 and Gαq from endothelial cells impairs the Rho-mediated formation of focal adherens junctions, suggesting that Gα11/q signaling may also play a significant role in cytoskeletal-mediated cellular responses in epithelial cells...
2017: PloS One
https://www.readbyqxmd.com/read/28298241/five-shared-decision-making-tools-in-5%C3%A2-months-use-of-rapid-reviews-to-develop-decision-boxes-for-seniors-living-with-dementia-and-their-caregivers
#5
Moulikatou Adouni Lawani, Béatriz Valéra, Émilie Fortier-Brochu, France Légaré, Pierre-Hugues Carmichael, Luc Côté, Philippe Voyer, Edeltraut Kröger, Holly Witteman, Charo Rodriguez, Anik M C Giguere
BACKGROUND: Decision support tools build upon comprehensive and timely syntheses of literature. Rapid reviews may allow supporting their development by omitting certain components of traditional systematic reviews. We thus aimed to describe a rapid review approach underlying the development of decision support tools, i.e., five decision boxes (DB) for shared decision-making between seniors living with dementia, their caregivers, and healthcare providers. METHOD: We included studies based on PICO questions (Participant, Intervention, Comparison, Outcome) describing each of the five specific decision...
March 15, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28288039/lmo2-negative-expression-predicts-the-presence-of-myc-translocations-in-aggressive-b-cell-lymphomas
#6
Luis Colomo, Ivonne Vazquez, Natalia Papaleo, Blanca Espinet, Anna Ferrer, Catalina Franco, Laura Comerma, Silvia Hernandez, Xavier Calvo, Antonio Salar, Fina Climent, José Luis Mate, Pilar Forcada, Anna Mozos, Lara Nonell, Antonio Martinez, Anna Carrio, Dolors Costa, Ivan Dlouhy, Itziar Salaverria, Jose Ignacio Martin-Subero, Armando Lopez-Guillermo, Alexandra Valera, Elias Campo
MYC translocation is a defining feature of Burkitt lymphoma (BL), and the new category of high-grade B-cell lymphomas with MYC and BCL2 and/or BCL6 translocations, and occurs in 6% to 15% of diffuse large B-cell lymphomas (DLBCLs). The low incidence of MYC translocations in DLBCL makes the genetic study of all these lymphomas cumbersome. Strategies based on an initial immunophenotypic screening to select cases with a high probability of carrying the translocation may be useful. LMO2 is a germinal center marker expressed in most lymphomas originated in these cells...
March 10, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28278604/fatalistic-cancer-beliefs-and-information-seeking-in-formerly-incarcerated-african-american-and-hispanic-men-implications-for-cancer-health-communication-and-research
#7
Pamela Valera, Zi Lian, Laura Brotzman, Andrea Reid
African-American and Hispanic men are disproportionately affected by cancer experiencing higher rates of cancer-related morbidity and mortality for many cancers (but not all). These challenges may be magnified for a subpopulation of African-American and Hispanic men who have been incarcerated. A survey assessing demographics, incarceration experience, psychosocial, behavioral, and cancer health information seeking was administered to 230 previously incarcerated men aged 35 years and older. Data analysis was performed to assess the association between fatalism, perceived susceptibility, and health information seeking in this population...
March 3, 2017: Health Communication
https://www.readbyqxmd.com/read/28265835/heavy-metal-concentrations-in-soils-and-vegetation-in-urban-areas-of-quezon-city-philippines
#8
Ian A Navarrete, Christella C Gabiana, Joan Ruby E Dumo, Severino G Salmo, Maria Aileen Leah G Guzman, Nestor S Valera, Emilyn Q Espiritu
Limited data have been published on the chemistry of urban soils and vegetation in the Philippines. The aim of this study is to quantify the concentrations of heavy metals (i.e., Cr, Ni, Cu, Zn, and Pb) in soils and vegetation in the urban landscape of Quezon City, Philippines, and to elucidate the relationships between soil properties and the concentration of heavy metals pertaining to different land uses [i.e., protected forest (LM), park and wildlife area (PA), landfill (PL), urban poor residential and industrial areas (RA), and commercial areas (CA)]...
April 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28244857/diagnostic-validity-of-doppler-ultrasound-in-giant-cell-arteritis
#9
I Concepción Aranda-Valera, Sara García Carazo, Irene Monjo Henry, Eugenio De Miguel Mendieta
OBJECTIVES: To assess the validity of Doppler ultrasound in the diagnosis of giant cell arteritis (GCA), using the American College of Rheumatology (ACR) criteria and biopsy and using as gold standard the patient's definitive clinical diagnosis. METHODS: An observational, descriptive and analytical study of 451 consecutive patients with suspected GCA was conducted, and the clinical history and ultrasound findings of the patients were reviewed. The validity of ACR criteria, temporal arteritis biopsy (TAB) and Doppler ultrasound in the diagnosis of GCA was calculated using the final diagnosis of the doctor in charge as the gold standard...
February 28, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28244125/identification-of-a-new-y-chromosome-haplogroup-in-spanish-native-cattle
#10
R Pelayo, M C T Penedo, M Valera, A Molina, L Millon, C Ginja, L J Royo
The aim of this work was to perform a thorough analysis of the diversity of Y-haplotypes in Spanish cattle. A total of 207 Bos taurus males were sampled across 25 European breeds, with a special focus on rare, local Spanish populations. Animals were genotyped with five Y-specific microsatellites (INRA189, UMN0103, UMN0307, BM861 and BYM1), two indels (ZFY10 and USP9Y) and one SNP (UTY19). A new haplogroup, distinct from those described by Götherström et al. (2005), was identified and named Y1.2. Samples representing the three B...
February 27, 2017: Animal Genetics
https://www.readbyqxmd.com/read/28231295/the-pathogens-profile-in-children-with-otitis-media-with-effusion-and-adenoid-hypertrophy
#11
G P Buzatto, E Tamashiro, J L Proenca-Modena, T H Saturno, M C Prates, T B Gagliardi, L R Carenzi, E T Massuda, M A Hyppolito, F C P Valera, E Arruda, W T Anselmo-Lima
OBJECTIVES: To evaluate the presence of viruses and bacteria in middle ear and adenoids of patients with and without otitis media with effusion (OME). METHODS: Adenoid samples and middle ear washes (MEW) were obtained from children with OME associated with adenoid hypertrophy undergoing adenoidectomy and tympanostomy, and compared to those obtained from patients undergoing cochlear implant surgery, as a control group. Specific DNA or RNA of 9 respiratory viruses (rhinovirus, influenza virus, picornavirus, syncytial respiratory virus, metapneumovirus, coronavirus, enterovirus, adenovirus and bocavirus) and 5 bacteria (S...
2017: PloS One
https://www.readbyqxmd.com/read/28229476/initial-medication-non-adherence-prevalence-and-predictive-factors-in-a-cohort-of-1-6-million-primary-care-patients
#12
Ignacio Aznar-Lou, Ana Fernández, Montserrat Gil-Girbau, Marta Fajó-Pascual, Patricia Moreno-Peral, María Teresa Peñarrubia-Teresa, Antoni Serrano-Blanco, Albert Sánchez-Niubó, María Antonia March-Pujol, Anna Maria Jové, Maria Rubio-Valera
AIMS: Adherence to medicines is vital in treating diseases. Initial medication non-adherence (IMNA) - defined as not obtaining a medication the first time it is prescribed - has been poorly explored. Previous studies show IMNA rates between 6 and 28% in primary care (PC). The aims of this study were to determine prevalence and predictive factors of IMNA in the most prescribed and expensive pharmacotherapeutic groups in the Catalan health system. METHODS: This is a retrospective, register-based cohort study which linked the Catalan PC System (Spain) prescription and invoicing databases...
February 23, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28224649/sex-chromosomal-abnormalities-associated-with-equine-infertility-validation-of-a-simple-molecular-screening-tool-in-the-purebred-spanish-horse
#13
G Anaya, A Molina, M Valera, M Moreno-Millán, P Azor, P Peral-García, S Demyda-Peyrás
Chromosomal abnormalities in the sex chromosome pair (ECAX and ECAY) are widely associated with reproductive problems in horses. However, a large proportion of these abnormalities remains undiagnosed due to the lack of an affordable diagnostic tool that allows for avoiding karyotyping tests. Hereby, we developed an STR (single-tandem-repeat)-based molecular method to determine the presence of the main sex chromosomal abnormalities in horses in a fast, cheap and reliable way. The frequency of five ECAX-linked (LEX026, LEX003, TKY38, TKY270 and UCDEQ502) and two ECAY-linked (EcaYH12 and SRY) markers was characterized in 261 Purebred Spanish Horses to determine the efficiency of the methodology developed to be used as a chromosomal diagnostic tool...
February 22, 2017: Animal Genetics
https://www.readbyqxmd.com/read/28218785/inhibition-of-shh-pathway-mechanisms-by-arsenic-trioxide-in-pediatric-medulloblastomas-a-comprehensive-literature-review
#14
REVIEW
P H S Klinger, A F Andrade, L E A Delsin, R G P Queiroz, C A Scrideli, L G Tone, E T Valera
Recent innovations in the genomic understanding of medulloblastomas have provided new ways to explore this highly invasive malignant brain cancer arising from the cerebellum. Among the four different medulloblastoma subgroups described to date, the sonic hedgehog (SHH) genetic pathway is the pathway activated in the tumorigenesis of medulloblastoma. SHH-related medulloblastomas are usually of nodular/desmoplastic histology and frequently occur in children under the age of three, an age group highly susceptible to the acute and long-term effects of treatment...
February 16, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28217147/automatic-procedure-for-generating-symmetry-adapted-wavefunctions
#15
Marcus Johansson, Valera Veryazov
Automatic detection of point groups as well as symmetrisation of molecular geometry and wavefunctions are useful tools in computational quantum chemistry. Algorithms for developing these tools as well as an implementation are presented. The symmetry detection algorithm is a clustering algorithm for symmetry invariant properties, combined with logical deduction of possible symmetry elements using the geometry of sets of symmetrically equivalent atoms. An algorithm for determining the symmetry adapted linear combinations (SALCs) of atomic orbitals is also presented...
2017: Journal of Cheminformatics
https://www.readbyqxmd.com/read/28187326/effect-of-chitosan-and-so2-on-viability-of-acetobacter-strains-in-wine
#16
Maria José Valera, Florencia Sainz, Albert Mas, María Jesús Torija
Wine spoilage is an important concern for winemakers to preserve the quality of their final product and avoid contamination throughout the production process. The use of sulphur dioxide (SO2) is highly recommended to prevent wine spoilage due to its antimicrobial activity. However, SO2 has a limited effect on the viability of acetic acid bacteria (AAB). Currently, the use of SO2 alternatives is favoured in order to reduce the use of chemicals and improve stabilization in winemaking. Chitosan is a biopolymer that is approved by the European authorities and the International Organization of Vine and Wine to be used as a fining agent and antimicrobial in wines...
February 1, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28186430/cerebral-blood-flow-frontal-lobe-oxygenation-and-intra-arterial-blood-pressure-during-sprint-exercise-in-normoxia-and-severe-acute-hypoxia-in-humans
#17
David Curtelin, David Morales-Alamo, Rafael Torres-Peralta, Peter Rasmussen, Marcos Martin-Rincon, Mario Perez-Valera, Christoph Siebenmann, Ismael Pérez-Suárez, Evgenia Cherouveim, A William Sheel, Carsten Lundby, José Al Calbet
Cerebral blood flow (CBF) is regulated to secure brain O2 delivery while simultaneously avoiding hyperperfusion; however, both requisites may conflict during sprint exercise. To determine whether brain O2 delivery or CBF is prioritized, young men performed sprint exercise in normoxia and hypoxia (PIO2 = 73 mmHg). During the sprints, cardiac output increased to ∼22 L min(-1), mean arterial pressure to ∼131 mmHg and peak systolic blood pressure ranged between 200 and 304 mmHg. Middle-cerebral artery velocity (MCAv) increased to peak values (∼16%) after 7...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28165590/survival-of-hydroxyapatite-coated-cups-acetabular-screws-involve-a-lower-rate-of-revision-surgery-due-to-aseptic-loosening
#18
Luis Natera, Marius Valera, Esther Moya Gómez, Natalia Ibañez, Xavier Crusi, Rogelio Sancho
BACKGROUND: It is believed that the path of acetabular screws may represent a shuttle between hydroxyapatite (HA) particles and the liner. The aim was to assess the relationship between acetabular screws and revision surgery for aseptic loosening in total hip arthroplasties (THAs). MATERIAL AND METHODS: A retrospective multicentric study was performed. Patients older than 18 years and patients who underwent THA with both the stem and cup HA-coated were included...
January 28, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28154893/loneliness-and-depression-in-the-elderly-the-role-of-social-network
#19
Joan Domènech-Abella, Elvira Lara, Maria Rubio-Valera, Beatriz Olaya, Maria Victoria Moneta, Laura Alejandra Rico-Uribe, Jose Luis Ayuso-Mateos, Jordi Mundó, Josep Maria Haro
PURPOSE: Loneliness and depression are associated, in particular in older adults. Less is known about the role of social networks in this relationship. The present study analyzes the influence of social networks in the relationship between loneliness and depression in the older adult population in Spain. METHODS: A population-representative sample of 3535 adults aged 50 years and over from Spain was analyzed. Loneliness was assessed by means of the three-item UCLA Loneliness Scale...
February 2, 2017: Social Psychiatry and Psychiatric Epidemiology
https://www.readbyqxmd.com/read/28152464/arsenic-association-of-regional-concentrations-in-drinking-water-with-suicide-and-natural-causes-of-death-in-italy
#20
Maurizio Pompili, Monica Vichi, Enrico Dinelli, Denise Erbuto, Roger Pycha, Gianluca Serafini, Gloria Giordano, Paolo Valera, Stefano Albanese, Annamaria Lima, Benedetto De Vivo, Domenico Cicchella, Zoltan Rihmer, Andrea Fiorillo, Mario Amore, Paolo Girardi, Ross J Baldessarini
Arsenic, as a toxin, may be associated with higher mortality rates, although its relationship to suicide is not clear. Given this uncertainty, we evaluated associations between local arsenic concentrations in tapwater and mortality in regions of Italy, to test the hypothesis that both natural-cause and suicide death rates would be higher with greater trace concentrations of arsenic. Arsenic concentrations in drinking-water samples from 145 sites were assayed by mass spectrometry, and correlated with local rates of mortality due to suicide and natural causes between 1980 and 2011, using weighted, least-squares univariate and multivariate regression modeling...
March 2017: Psychiatry Research
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