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https://www.readbyqxmd.com/read/28227515/a-clinic-compatible-open-source-electrophysiology-system
#1
John Hermiz, Nick Rogers, Erik Kaestner, Mehran Ganji, Dan Cleary, Joseph Snider, David Barba, Shadi Dayeh, Eric Halgren, Vikash Gilja, John Hermiz, Nick Rogers, Erik Kaestner, Mehran Ganji, Dan Cleary, Joseph Snider, David Barba, Shadi Dayeh, Eric Halgren, Vikash Gilja, Erik Kaestner, Mehran Ganji, David Barba, Joseph Snider, Nick Rogers, Shadi Dayeh, Eric Halgren, Vikash Gilja, Dan Cleary, John Hermiz
Open source electrophysiology (ephys) recording systems have several advantages over commercial systems such as customization and affordability enabling more researchers to conduct ephys experiments. Notable open source ephys systems include Open-Ephys, NeuroRighter and more recently Willow, all of which have high channel count (64+), scalability, and advanced software to develop on top of. However, little work has been done to build an open source ephys system that is clinic compatible, particularly in the operating room where acute human electrocorticography (ECoG) research is performed...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227254/a-data-science-approach-for-quantifying-spatio-temporal-effects-to-graft-failures-in-organ-transplantation
#2
Diego Pinheiro, Farag Hamad, Martin Cadeiras, Ronaldo Menezes, Nezamoddin Nezamoddini-Kachouie, Diego Pinheiro, Farag Hamad, Martin Cadeiras, Ronaldo Menezes, Nezamoddin Nezamoddini-Kachouie, Farag Hamad, Martin Cadeiras, Diego Pinheiro, Ronaldo Menezes, Nezamoddin Nezamoddini-Kachouie
The transplantation of solid organs is one of the most important accomplishments of modern medicine. Yet, organ shortage is a major public health issue; 8,000 people died while waiting for an organ in 2014. Meanwhile, the allocation system currently implemented can lead to organs being discarded and the medical community still investigates factors that affects early graft failure such as distance and ischemic time. In this paper, we investigate early graft failure under a spatio-temporal perspective using a data science unified approach for all six organs that is based on complementary cumulative analysis of both distance and ischemic time...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226323/immune-complex-membranoproliferative-glomerulonephritis-associated-with-transjugular-intrahepatic-portosystemic-shunts-in-alcohol-cirrhosis-two-case-reports
#3
Julio Hernández-Jaras, Jordi Espí-Reig, Rafael Alis, Ana-Maria García-Martínez, Diego Rodríguez-Ortega, Lourdes Roca-Argente, Jose-Luis Moll-Guillen
OBJECTIVE: To report two cases with alcoholic cirrhosis, that were treated with transjugular intrahepatic portosystemic shunt (TIPS) placement. CLINICAL PRESENTATION AND INTERVENTION: The two patients had a history of alcoholic cirrhosis and TIPS surgery was performed on them. In both cases, 4 months after TIPS placement, proteinuria was observed along with histological alterations characteristic of immune complex-MPGN. CONCLUSION: The TIPS in one patient was successful without immediate complication while the other patient was referred for combined liver-kidney transplant...
February 22, 2017: Medical Principles and Practice: International Journal of the Kuwait University, Health Science Centre
https://www.readbyqxmd.com/read/28226272/automated-processing-extraction-and-detection-of-herpes-simplex-virus-types-1-and-2-a-comparative-evaluation-of-three-commercial-platforms-using-clinical-specimens
#4
Matthew J Binnicker, Mark J Espy, Brian Duresko, Cole Irish, Jay Mandrekar
BACKGROUND: Recently, automated platforms have been developed that can perform processing, extraction and testing for herpes simplex virus (HSV) nucleic acid on a single instrument. OBJECTIVES: In this study, we compared three commercially-available systems; Aptima(®)/Panther (Hologic, San Diego, CA), ARIES(®) (Luminex Corporation, Austin, TX), and cobas(®) 4800 (Roche Molecular Systems Inc, Pleasanton, CA) for the qualitative detection of HSV-1/2 in clinical samples...
February 14, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28226007/hospitalization-and-hospital-mortality-of-elderly-people-with-mental-and-behavioral-disorders-in-brazil-2008-2014
#5
Vanessa Cruz Santos, Karla Ferraz Dos Anjos, Rita Narriman Silva de Oliveira Boery, Ramon Missias Moreira, Diego Pires Cruz, Eduardo Nagib Boery
OBJECTIVE: to analyze the evolution of hospitalizations and hospital mortality of elderly people with mental and behavioral disorders in Brazil, from 2008 to 2014. METHODS: this is a time series ecological study, with data from the Hospital Information System of the Brazilian National Health System (SIH/SUS), and analyzed through Prais-Winsten regression. RESULTS: during the studied period, 139,941 hospitalizations and 2,962 deaths were recorded; the hospitalization coefficient for mental and behavioral disorders decreased in Brazil, from 122...
January 2017: Epidemiologia e Servicos de Saude: Revista do Sistema Unico de Saude do Brasil
https://www.readbyqxmd.com/read/28225801/perioperative-hemoglobin-area-under-the-curve-is-an-independent-predictor-of-renal-failure-after-cardiac-surgery-results-from-a-spanish-multicenter-retrospective-cohort-study
#6
Paula Duque-Sosa, Diego Martínez-Urbistondo, Gemma Echarri, Raquel Callejas, María Josefa Iribarren, Gregorio Rábago, Pablo Monedero
Perioperative anemia is an important risk factor for cardiac surgery-associated acute kidney injury (CSA-AKI). Nonetheless, the severity of the anemia and the time in the perioperative period in which the hemoglobin level should be considered as a risk factor is conflicting. The present study introduces the concept of perioperative hemoglobin area under the curve (pHb-AUC) as a surrogate marker of the evolution of perioperative hemoglobin concentration. Through a retrospective analysis of prospectively collected data, we assessed this new variable as a risk factor for the development of acute kidney injury after cardiac surgery in 966 adult patients who underwent cardiac surgery with cardiopulmonary bypass, at twenty-three academic hospitals in Spain...
2017: PloS One
https://www.readbyqxmd.com/read/28225552/potential-clinical-significance-of-perioperative-levels-of-mrna-in-plasma-from-patients-with-cancer-of-the-larynx-or-hypopharynx
#7
Dolores C García-Olmo, J Diego Contreras, María G Picazo, Jesús López-Torres, Damián García-Olmo
BACKGROUND: The use of plasma as a "liquid biopsy" has gained increasing attention. The purpose of the present study was to evaluate the diagnostic and prognostic utility of the perioperative detection and quantitation of mRNAs encoding human telomerase reverse transcriptase (hTERT) and glyceraldehyde 3-phosphate dehydrogenase (GAPDH) in plasma from patients with cancer of the larynx or hypopharynx. METHODS: We recruited 47 patients with laryngeal cancer and 2 patients with hypopharyngeal cancer, plus 27 healthy subjects...
February 22, 2017: Head & Neck
https://www.readbyqxmd.com/read/28225304/column-switching-uhplc-ms-ms-with-restricted-access-material-for-the-determination-of-cns-drugs-in-plasma-samples
#8
Vinicius Ricardo Acquaro, Diego Soares Domingues, Maria Eugênia Costa Queiroz
BACKGROUND: Polypharmacy is a common practice in schizophrenia. Consequently, therapeutic drug monitoring is usually adopted to maintain the concentrations of the drugs in the plasma within a targeted therapeutic range, to maximize therapeutic efficiency and to diminish adverse side effects. METHODOLOGY: This study reports on a column switching UHPLC-MS/MS method to determine psychotropic drugs in plasma samples simultaneously. RESULTS: The method was linear from 0...
February 22, 2017: Bioanalysis
https://www.readbyqxmd.com/read/28224184/irritable-temperament-profile-prevails-among-patients-with-boxer-fractures
#9
A Taşkesen, I Demirkale, N Taşkesen, M Okumuş, D Ö Can
OBJECTIVE: The purpose of this prospective study was to examine the temperament dimensions of the patients with boxer fracture and compare them with age- and sex-matched controls. METHODS: We performed a prospective analysis investigating affective temperaments of the 102 patients with boxer fractures and compared them with 100 sex- and age-matched controls that were referred to the emergency department due to incidental soft-tissue trauma. Affective temperament of the patients was evaluated by Memphis, Pisa, Paris, and San Diego-Auto questionnaire (TEMPS-A)...
February 21, 2017: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/28223969/mycobacterium-tuberculosis-prolyl-oligopeptidase-induces-in-vitro-secretion-of-proinflammatory-cytokines-by-peritoneal-macrophages
#10
Brina Portugal, Flávia N Motta, Andre F Correa, Diego O Nolasco, Hugo de Almeida, Kelly G Magalhães, Ana L V Atta, Francisco D Vieira, Izabela M D Bastos, Jaime M Santana
Tuberculosis (TB) is a disease that leads to death over 1 million people per year worldwide and the biological mediators of this pathology are poorly established, preventing the implementation of effective therapies to improve outcomes in TB. Host-bacterium interaction is a key step to TB establishment and the proteases produced by these microorganisms seem to facilitate bacteria invasion, migration and host immune response evasion. We presented, for the first time, the identification, biochemical characterization, molecular dynamics (MDs) and immunomodulatory properties of a prolyl oligopeptidase (POP) from Mycobacterium tuberculosis (POPMt)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28223508/c-terminal-phosphorylation-regulates-the-kinetics-of-a-subset-of-melanopsin-mediated-behaviors-in-mice
#11
Preethi Somasundaram, Glenn R Wyrick, Diego Carlos Fernandez, Alireza Ghahari, Cindy M Pinhal, Melissa Simmonds Richardson, Alan C Rupp, Lihong Cui, Zhijian Wu, R Lane Brown, Tudor Constantin Badea, Samer Hattar, Phyllis R Robinson
Intrinsically photosensitive retinal ganglion cells (ipRGCs) express the photopigment melanopsin and mediate several non-image-forming visual functions, including circadian photoentrainment and the pupillary light reflex (PLR). ipRGCs act as autonomous photoreceptors via the intrinsic melanopsin-based phototransduction pathway and as a relay for rod/cone input via synaptically driven responses. Under low light intensities, where only synaptically driven rod/cone input activates ipRGCs, the duration of the ipRGC response will be determined by the termination kinetics of the rod/cone circuits...
February 21, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28222997/integrated-analysis-of-recombinant-bpv-1-l1-protein-for-the-production-of-a-bovine-papillomavirus-vlp-vaccine
#12
Diego Grando Módolo, Rodrigo Pinheiro Araldi, Jacqueline Mazzuchelli-de-Souza, Alexandre Pereira, Daniel Carvalho Pimenta, Letícia Maria Zanphorlin, Willy Beçak, Marcelo Menossi, Rita de Cassia Stocco, Rodrigo Franco de Carvalho
Bovine papillomatosis is an infectious disease that is caused by bovine papillomavirus (BPV), which results in important economic losses. However, no BPV vaccines or effective treatment methods are commercially available to date. Moreover, the absence of papillomavirus replication in vitro makes the use of recombinant protein a promising candidate for vaccine formulations. Hence, we developed an integrated study on the L1 capsid protein of BPV-1, obtained from a bacterial expression system, regarding its purification, biosafety, thermostability and immunogenicity...
February 17, 2017: Vaccine
https://www.readbyqxmd.com/read/28222729/socioeconomic-inequalities-in-dental-health-among-middle-aged-adults-and-the-role-of-behavioral-and-psychosocial-factors-evidence-from-the-spanish-national-health-survey
#13
Diego Alberto Capurro, Michael Davidsen
BACKGROUND: The goal of this analysis was to describe socioeconomic inequalities in dental health among Spanish middle-aged adults, and the role of behavioral and psychosocial factors in explaining these inequalities. METHODS: This cross-sectional study used survey data from the 2006 Spanish National Health Survey and focused on adults ages 30 - 64. The outcome was dental health status based on the presence of self-reported dental problems. We used education, income, and occupational class as indicators of socioeconomic position and applied logistic regression analysis to estimate associations...
February 16, 2017: International Journal for Equity in Health
https://www.readbyqxmd.com/read/28222563/afferent-electrical-stimulation-during-cycling-improves-spinal-processing-of-sensorimotor-function-after-incomplete-spinal-cord-injury
#14
Stefano Piazza, Diego Serrano-Muñoz, Julio Gómez-Soriano, Diego Torricelli, Antonio Segura-Fragosa, José Luis Pons, Julian Taylor
OBJECTIVE: Appropriate afferent feedback delivery during the execution of motor tasks is important for rehabilitation after incomplete spinal cord injury (iSCI). However, during leg-cycling therapy, the plantar afferent feedback is minimal. We hypothesize that the augmentation of sensory input by combining cycling with a locomotor-like stimulation of plantar cutaneous innervations (ES-cycling), might help to restore proper spinal processing of sensorimotor function. METHODS: 13 non-injured subjects and 10 subjects with iSCI performed 10 minutes of cycling and, on another session, of ES-cycling...
February 10, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28222429/effect-of-5-000-ppm-fluoride-dentifrice-or-1-100-ppm-fluoride-dentifrice-combined-with-acidulated-phosphate-fluoride-on-caries-lesion-inhibition-and-repair
#15
Constanza E Fernández, Livia Maria Andaló Tenuta, Altair Antoninha Del Bel Cury, Diego Figueiredo Nóbrega, Jaime Aparecido Cury
High fluoride dentifrice (FD; 5,000 ppm F) has been recommended to arrest root dentine lesions and to control enamel caries in high-risk patients. Also, standard FD (1,100 ppm F) in combination with professional fluoride application has been recommended to control dentine caries, but the effect of this combination on enamel has been considered modest. Considering the lack of evaluation comparing the use of 5,000 ppm FD (5,000-FD) versus acidulated phosphate fluoride (APF) application combined with 1,100 ppm FD (1,100-FD) on the inhibition and repair of caries lesions in both enamel and dentine, we conducted this in situ, double-blind, crossover study of 3 phases of 14 days...
February 22, 2017: Caries Research
https://www.readbyqxmd.com/read/28220944/magnetic-resonance-examination-of-patients-with-implanted-pacemakers-an-evaluation-of-magnetic-field-gradients-slew-rate
#16
Diego Trevisan, Gloria Miori, Armando Correale, Davide Libralon
Performing safe magnetic resonance imaging of patients with "MR conditional" pacemakers needs to meet some specific restrictions. One of these is related to the slew rate (SR) parameter, defined as the speed of magnetic field gradients rising up to their required strengths. Unfortunately, SR values cannot be easily checked at the tomograph console. The present work provides an accurate evaluation of the maximum SR for a set of widely used clinical MR sequences. The experimental approach is based on indirect measurement of time-varying spatial magnetic field gradients...
February 21, 2017: Bioelectromagnetics
https://www.readbyqxmd.com/read/28220751/upper-extremity-sarcoma-impact-of-current-practice-guidelines-and-controversies-on-reconstructive-approaches
#17
Marek Dobke, Gina A Mackert
The goals of sarcoma management include both a cure and the functional preservation of involved tissues and adjacent critical structures with common opinions favoring immediate reconstruction. The question arises whether these goals are contradictory. This paper discusses the question based on the experience of 28 patients with different types of extremity sarcoma, with 24 surgically treated by the University of California San Diego (UCSD) orthopedic and plastic surgery team (2011-2016) and the collection of evidence from published practice guidelines, reviews, case studies, and clinical trials...
2017: SICOT-J
https://www.readbyqxmd.com/read/28219553/extensive-chest-wall-destruction-secondary-to%C3%A2-a%C3%A2-large-ventricle-pseudoaneurysm-a-surgical%C3%A2-challenge
#18
Francisco Javier Irazusta, Ulises Ramirez, Juan Caro-Codon, Elena Refoyo, Diego Garrido, Inmaculada Pinilla, Jose Maria Mesa, Jose Luis Lopez-Sendon
Left ventricular pseudoaneurysms have become a rare complication of acute myocardial infarction, occurring in approximately 2% of cases and even less frequently when primary percutaneous intervention can be performed. Regardless of treatment strategy, left ventricle pseudoaneurysms are associated with a high mortality rate. We report on the extremely rare occurrence of a patient surviving two episodes of free wall rupture associated with extensive chest wall destruction and secondary traumatic rib fractures...
March 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28218615/electronic-properties-of-superlattices-on-quantum-rings
#19
Diego Rabelo da Costa, Andrey Chaves, W Ferreira, Gil Farias, Robson Ferreira
We present a theoretical study of the one-electron states of a semiconductors-made quantum ring (QR) containing a series of piecewise-constants wells and barriers distributed along the ring circumference. The single quantum well and the superlattice cases are considered in detail. We also investigate how such confining potentials affect the Aharonov-Bohm like oscillations of the energy spectrum and current in the presence of a magnetic field. The model is simple enough so as to allow obtaining various analytical or quasi-analytical results...
February 20, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28218535/sulfur-groups-improve-the-performance-of-triazole-and-triazolium-based-interaction-units-in-anion-binding
#20
Monica Alvarez-Perez, Marina Velado, Diego Garcia-Puentes, Elena Saez, Cristina Vicent, Roberto Fernández de la Pradilla, Alma Viso, Maria C De La Torre, Miguel A Sierra
An NMR comparative study of 1,2,3-triazole and triazolium anion recognition units containing sulfoxide, sulfone and sulfoximine groups at C4 unveils an enhancement in binding ability up to ≈1 kcal/mol in acetone-d6 correlated with a theoretical increase of H5 acidity. DFT calculations provide insight into binding modes in line with experimental data for these receptors.
February 20, 2017: Journal of Organic Chemistry
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