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https://www.readbyqxmd.com/read/29340998/on-pacing-trials-while-scanning-brain-hemodynamics-the-case-of-the-snarc-effect
#1
Sabrina Brigadoi, Sara Basso Moro, Roberta Falchi, Simone Cutini, Roberto Dell'Acqua
Experimental designs used to describe psychological effects on overt human behavior are seldom suited to localize their corresponding neural substrates based on the analysis of stimulus-evoked brain hemodynamic responses. This is because stimuli in behavioral studies are usually separated by intertrial intervals (ITIs) in the order of 1 second or so following a behavioral response, which is notoriously too brief a time to detect a corresponding hemodynamic response. In fact, a solution commonly adopted in neuroimaging studies is to prolong the ITI up to several seconds...
January 16, 2018: Psychonomic Bulletin & Review
https://www.readbyqxmd.com/read/29340482/clear-cell-odontogenic-carcinoma-of-the-mandible-a-treatment-strategy
#2
Sabrina Ferreira, Leonardo Perez Faverani, Gabriel Mulinari Dos Santos, Everton Pontes Martins, Idelmo Rangel Garcia Júnior
Clear cell odontogenic carcinoma (CCOC) is a rare odontogenic tumor of the jaws, histologically characterized by the presence of agglomerates of cells with eosinophilic cytoplasm. The patient, a 62-year-old Caucasian woman, presented an intraosseous lesion in the mandibular symphysis. A clinical examination revealed a discrete volumetric increase with a hard consistency, palpable to extraoral and intraoral examinations. Imaging studies revealed an extensive radiolucent area, without defined limits, extending from the region of the right second premolar to the left canine...
January 15, 2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29340467/prevalence-of-and-risk-factors-for-intestinal-parasite-infections-in-pediatric-patients-admitted-to-public-hospitals-in-southern-brazil
#3
Isis Almeida de Almeida, Sabrina Jeske, Marília Arndt Mesemburg, Maria Elisabeth Aires Berne, Marcos Marreiro Villela
INTRODUCTION: This study aimed to evaluate the prevalence of intestinal parasitosis and to identify risk factors associated therewith in hospitalized children. METHODS: Three fecal samples from each patient were evaluated using three different techniques. The patients' nutritional and socioeconomic status and hematologic profiles were evaluated. RESULTS: Of 106 children, 32.1% tested positive for intestinal parasitosis. The associated risk factors were low parental education levels and children's nail-biting habit...
November 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/29339648/caries-preventive-effect-of-naf-naf-plus-tcp-naf-plus-cpp-acp-and-sdf-varnishes-on-sound-dentin-and-artificial-dentin-caries-in-vitro
#4
Richard J Wierichs, Sabrina Stausberg, Julian Lausch, Hendrik Meyer-Lueckel, Marcella Esteves-Oliveira
The aim of this study was to compare the caries-preventive effect of different fluoride varnishes on sound dentin as well as on artificial dentin caries-like lesions. Bovine dentin specimens (n = 220) with one sound surface (ST) and one artificial caries lesion (DT) were prepared and randomly allocated to 11 groups. The interventions before pH cycling were as follows: application of a varnish containing NaF (22,600 ppm F-; Duraphat [NaF0/NaF1]), NaF plus tricalcium phosphate (22,600 ppm F-; Clinpro White Varnish Mint [TCP0/TCP1]), NaF plus casein phosphopeptide-stabilized amorphous calcium phosphate complexes (CPP-ACP; 22,600 ppm F-; MI Varnish [CPP0/CPP1]), or silver diamine fluoride (SDF; 35,400 ppm F-; Cariestop 30% [SDF0/SDF1]) and no intervention (NNB/N0/N1)...
January 17, 2018: Caries Research
https://www.readbyqxmd.com/read/29339251/quinoxaline-derivatives-as-new-inhibitors-of-coxsackievirus-b5
#5
Antonio Carta, Giuseppina Sanna, Irene Briguglio, Silvia Madeddu, Gabriella Vitale, Sandra Piras, Paola Corona, Alessandra Tiziana Peana, Erik Laurini, Maurizio Fermeglia, Sabrina Pricl, Alessandra Serra, Elisa Carta, Roberta Loddo, Gabriele Giliberti
Enteroviruses are among the most common and important human pathogens for which there are no specific antiviral agents approved by the US Food and Drug Administration so far. Particularly, coxsackievirus infections have a worldwide distribution and can cause many important diseases. We here report the synthesis of new 14 quinoxaline derivatives and the evaluation of their cytotoxicity and antiviral activity against representatives of ssRNA, dsRNA and dsDNA viruses. Promisingly, three compounds showed a very potent and selective antiviral activity against coxsackievirus B5, with EC50 in the sub-micromolar range (0...
December 27, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29338788/high-throughput-immunophenotypic-characterization-of-bone-marrow-and-cord-blood-derived-mesenchymal-stromal-cells-reveals-common-and-differentially-expressed-markers-identification-of-angiotensin-converting-enzyme-cd143-as-a-marker-differentially-expressed
#6
Eliana Amati, Omar Perbellini, Gianluca Rotta, Martina Bernardi, Katia Chieregato, Sabrina Sella, Francesco Rodeghiero, Marco Ruggeri, Giuseppe Astori
BACKGROUND: Mesenchymal stromal cells (MSC) are a heterogeneous population of multipotent progenitors used in the clinic because of their immunomodulatory properties and their ability to differentiate into multiple mesodermal lineages. Although bone marrow (BM) remains the most common MSC source, cord blood (CB) can be collected noninvasively and without major ethical concerns. Comparative studies comprehensively characterizing the MSC phenotype across several tissue sources are still lacking...
January 16, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29337285/comparison-of-clustering-approaches-with-application-to-dual-colour-protein-data
#7
Sabrina Siebert, Katja Ickstadt, Martin Schäfer, Yvonne Radon, Peter J Verveer
Cells communicate with their environment via proteins, located at the plasma membrane separating the interior of a cell from its surroundings. The spatial distribution of these proteins in the plasma membrane under different physiological conditions is of importance, since this may influence their signal transmission properties. In this study, the authors compare different methods such as hierarchical clustering, extensible Markov models and the gammics method for analysing such a spatial distribution. The methods are examined in a simulation study to determine their optimal use...
February 2018: IET Systems Biology
https://www.readbyqxmd.com/read/29336909/-non-reported-spa-types-in-our-country-in-staphylococcus-aureus-from-adult-patients-of-a-school-hospital-santa-fe-argentina
#8
Carla Tomatis, María R Baroni, María A Mendosa, Alicia Nagel, Analia Mollerach, Claudia Alvarez, Maria Laura Zurbriggen, Sabrina Cristobal, Glenda Segovia, Emilce de Los A Méndez
Staphylococcus aureus is a pathogen associated a different kind of infection. Molecular markers are useful tools to study microbial epidemiology. Twenty two methicillin-resistant S. aureus (MRSA) and 23 methicillin-susceptible S. aureus (MSSA) were studied by mecA gene, SCCmec cassette, Panton Valentine leucocidin (PVL) and spa polymorphism. The clinical data patients were analyzed. MSSA was prevalent in samples different from skin and soft tissue (SST) and in hospitalized patients, whereas MRSA in SST. SCCmec type IV was predominant, followed by type I...
January 11, 2018: Revista Argentina de Microbiología
https://www.readbyqxmd.com/read/29335646/dipeptidyl-peptidase-4-inhibitors-pancreatic-cancer-and-acute-pancreatitis-a-meta-analysis-with-trial-sequential-analysis
#9
Lana C Pinto, Dimitris V Rados, Sabrina S Barkan, Cristiane B Leitão, Jorge L Gross
The use of dipeptidyl peptidase-4 (DPP-4) inhibitors may be associated with pancreatic cancer and acute pancreatitis. Recent meta-analyses have reported conflicting findings. Therefore, we performed a meta-analysis to assess the risk of both pancreatic cancer and acute pancreatitis associated with the use of DPP-4 inhibitors. We also used trial sequential analysis to evaluate whether the number of patients included was enough to reach conclusions. We included randomised controlled trials lasting 24 weeks or more that compared DPP-4 inhibitors with placebo or other antihyperglycaemic agents...
January 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29335629/a-prospective-randomized-evaluation-of-the-feasibility-of-exergaming-on-patients-undergoing-hematopoietic-stem-cell-transplantation
#10
Helge Schumacher, Sabrina Stüwe, Peter Kropp, Doreen Diedrich, Sebastian Freitag, Nico Greger, Christian Junghanss, Mathias Freund, Inken Hilgendorf
The positive effects of physical and sports therapy for strain dependent physical practice and improved quality of life (QoL) are well known. Nevertheless, the available capacities and problem-oriented therapies in the setting of hematopoietic stem cell transplantation (HSCT) are limited. We conducted a prospective, randomized study among 42 HSCT recipients in order to investigate the influence of exergaming on Nintendo Wii® or classical physiotherapy (PT) on physical fitness and psychological well-being. The trial included evaluation of muscle strength, endurance, physical activity, distress, QoL, anxiety, and depression...
January 15, 2018: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/29335230/application-of-a-health-risk-assessment-model-for-cattle-exposed-to-pesticides-in-contaminated-drinking-waters-a-study-case-from-the-pampas-region-argentina
#11
Sabrina Dubny, Fabio Peluso, Ignacio Masson, Natalia Othax, José González Castelain
Using the USEPA methodology we estimated the probabilistic chronic risks for calves and adult cows due to pesticide exposure through oral intake of contaminated surface and ground waters in Tres Arroyos County (Argentina). Because published data on pesticide toxicity endpoints for cows are scarce, we used threshold levels based on interspecies extrapolation methods. The studied waters showed acceptable quality for cattle production since none of the pesticides were present at high-enough concentrations to potentially affect cow health...
January 12, 2018: Chemosphere
https://www.readbyqxmd.com/read/29334379/highly-parallel-direct-rna-sequencing-on-an-array-of-nanopores
#12
Daniel R Garalde, Elizabeth A Snell, Daniel Jachimowicz, Botond Sipos, Joseph H Lloyd, Mark Bruce, Nadia Pantic, Tigist Admassu, Phillip James, Anthony Warland, Michael Jordan, Jonah Ciccone, Sabrina Serra, Jemma Keenan, Samuel Martin, Luke McNeill, E Jayne Wallace, Lakmal Jayasinghe, Chris Wright, Javier Blasco, Stephen Young, Denise Brocklebank, Sissel Juul, James Clarke, Andrew J Heron, Daniel J Turner
Sequencing the RNA in a biological sample can unlock a wealth of information, including the identity of bacteria and viruses, the nuances of alternative splicing or the transcriptional state of organisms. However, current methods have limitations due to short read lengths and reverse transcription or amplification biases. Here we demonstrate nanopore direct RNA-seq, a highly parallel, real-time, single-molecule method that circumvents reverse transcription or amplification steps. This method yields full-length, strand-specific RNA sequences and enables the direct detection of nucleotide analogs in RNA...
January 15, 2018: Nature Methods
https://www.readbyqxmd.com/read/29334185/physical-properties-of-implanted-porous-bioscaffolds-regulate-skin-repair-focusing-on-mechanical-and-structural-features
#13
REVIEW
Shumeng Jiang, Sabrina Cloud Li, Chenyu Huang, Barbara Pui Chan, Yanan Du
Porous bioscaffolds are applied to facilitate skin repair since the early 1990s, but a perfect regeneration outcome has yet to be achieved. Until now, most efforts have focused on modulating the chemical properties of bioscaffolds, while physical properties are traditionally overlooked. Recent advances in mechanobiology and mechanotherapy have highlighted the importance of biomaterials' physical properties in the regulation of cellular behaviors and regenerative processes. In skin repair, the mechanical and structural features of porous bioscaffolds are two major physical properties that determine therapeutic efficacy...
January 15, 2018: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/29333226/expression-of-some-atp-binding-cassette-transporters-in-acute-myeloid-leukemia
#14
Antonella Maria Salvia, Flavia Cuviello, Sabrina Coluzzi, Roberta Nuccorini, Immacolata Attolico, Sara Pasquina Pascale, Faustino Bisaccia, Michele Pizzuti, Angela Ostuni
No abstract text is available yet for this article.
December 22, 2017: Hematology Reports
https://www.readbyqxmd.com/read/29332048/frequency-of-cardiovascular-genetic-risk-factors-in-a-calabrian-population-and-their-effects-on-dementia
#15
Raffaele Maletta, Nicoletta Smirne, Livia Bernardi, Maria Anfossi, Maura Gallo, Maria Elena Conidi, Rosanna Colao, Gianfranco Puccio, Sabrina A M Curcio, Valentina Laganà, Francesca Frangipane, Chiara Cupidi, Maria Mirabelli, Franca Vasso, Giusi Torchia, Maria G Muraca, Raffaele Di Lorenzo, Giuseppina Rose, Alberto Montesanto, Giuseppe Passarino, Amalia C Bruni
BACKGROUND: Several genetic variants playing a key role in cholesterol levels, blood pressure, and vascular dysfunction influence the risk of Alzheimer's disease (AD) and vascular dementia (VaD). The many meta-analysis studies carried out on large numbers of samples in different populations have not provided clear results to date, because a trans-ethnic shift of risk genotypes in different populations is often observed. OBJECTIVES: To determine genotypes allele frequencies of the polymorphisms most frequently identified to be correlated with cardio-cerebrovascular disease and AD in a Southern Italy population and to investigate their possible association with dementia...
2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29332017/insulin-resistance-and-lung-function-in-obese-asthmatic-pre-pubertal-children
#16
Paola Di Filippo, Alessandra Scaparrotta, Daniele Rapino, Tommaso de Giorgis, Marianna Immacolata Petrosino, Marina Attanasi, Sabrina Di Pillo, Francesco Chiarelli, Angelika Mohn
BACKGROUND: Recent findings have supposed that the underlying association between the increased prevalence of both asthma and obesity may be insulin resistance (IR). METHODS: Insulin and glucose serum levels were analyzed to calculate the homeostatic model assessment of insulin resistance (HOMA-IR) for IR in 98 pre-pubertal children. Lung function and allergy status evaluation were performed. The study population was divided into four groups: (1) obese asthmatic children (ObA); (2) normal-weight asthmatic children (NwA); (3) normal-weight non-asthmatic children (Nw) and (4) obese non-asthmatic children (Ob)...
January 26, 2018: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/29331666/age-related-oxidative-changes-in-pancreatic-islets-are-predominantly-located-in-the-vascular-system
#17
Richard Kehm, Jeannette König, Kerstin Nowotny, Tobias Jung, Stephanie Deubel, Sabrina Gohlke, Tim Julius Schulz, Annika Höhn
Aged tissues usually show a decreased regenerative capacity accompanied by a decline in functionality. During aging pancreatic islets also undergo several morphological and metabolic changes. Besides proliferative and regenerative limitations, endocrine cells lose their secretory capacity, contributing to a decline in functional islet mass and a deregulated glucose homeostasis. This is linked to several features of aging, such as induction of cellular senescence or the formation of modified proteins, such as advanced glycation end products (AGEs) - the latter mainly examined in relation to hyperglycemia and in disease models...
December 29, 2017: Redox Biology
https://www.readbyqxmd.com/read/29330292/microenvironmental-derived-regulation-of-hif-signaling-drives-transcriptional-heterogeneity-in-glioblastoma-multiforme
#18
Dieter Henrik Heiland, Annette Gaebelein, Melanie Boerries, Jakob Woerner, Nils Pompe, Pamela Franco, Sabrina Heynckes, Mark D Bartholomä, Darren Ó hAilín, Maria Stella Carro, Marco Prinz, Stefan Weber, Irina Mader, Daniel Delev, Oliver Schnell
The evolving and highly heterogeneous nature of malignant brain tumors underlies their limited response to therapy and poor prognosis. In addition to genetic alterations, highly dynamic processes such as transcriptional and metabolic reprogramming play an important role in the development of tumor heterogeneity. The present study reports an adaptive mechanism in which the metabolic environment of malignant glioma drives transcriptional reprogramming. Multi-regional analysis of a glioblastoma patient biopsy revealed a metabolic landscape marked by varying stages of hypoxia and creatine enrichment...
January 12, 2018: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/29329749/assessment-of-the-diagnostic-performance-of-four-methods-for-the-detection-of-giardia-duodenalis-in-fecal-samples-from-human-canine-and-feline-carriers
#19
Flávia Fernandes de Mendonça Uchôa, Adriana Pittella Sudré, Sabrina Destri Emmerick Campos, Nádia Regina Pereira Almosny
Enteric parasitic diseases including giardiasis are of public health concern. Different methods are available for the diagnosis of this parasitic infection in fecal samples such as the identification of protozoan cysts and trophozoites by light microscopy, detection of specific antigens by ELISA, and amplification of DNA fragments by PCR. The present study aimed at assessing the performance of four laboratory tests for the detection of Giardia duodenalis in fecal specimens from three different host species with a previous diagnosis of giardiasis; canine, feline and human patients provided new stool samples to be retested for Giardia before initiating treatment with antiprotozoal drugs...
January 9, 2018: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/29329116/concussion-symptom-underreporting-among-incoming-national-collegiate-athletic-association-division-i-college-athletes
#20
Fiona N Conway, Marianne Domingues, Robert Monaco, Laura M Lesnewich, Anne E Ray, Brandon L Alderman, Sabrina M Todaro, Jennifer F Buckman
OBJECTIVE: Accurate diagnosis of sport-related concussions relies heavily on truthful self-reporting of symptom severity. Previous studies have emphasized lack of knowledge as a factor in symptom nondisclosure. This study sought to examine concussion knowledge and the relationship of knowledge to reasons for symptom nondisclosure. DESIGN: Cross-sectional study. SETTING: Data were collected during preparticipation athletic evaluations via electronic survey...
January 11, 2018: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
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