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https://www.readbyqxmd.com/read/28724283/lung-cancer-screening-with-low-dose-ct-in-female-never-smokers-retrospective-cohort-study-with-long-term-national-data-follow-up
#1
Hyae Young Kim, Kyu-Won Jung, Kun Young Lim, Soo-Hyun Lee, Jae Kwan Jun, Jeongseon Kim, Bin Hwangbo, Jin Soo Lee
Purpose: Because of growing concerns about lung cancer in female never smokers, low-dose chest CT (LDCT) screening is often performed although it has never shown clinical benefits. We examine whether or not female never smokers really need annual LDCT screening when the initial LDCT showed negative findings. Materials and Methods: This retrospective cohort study included 4,365 female never smokers aged 40 to 79 years who performed initial LDCT from Aug 2002 to Dec 2007...
July 17, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/28724280/management-of-benign-and-malignant-pancreatic-duct-strictures
#2
Enad Dawod, Michel Kahaleh
The diagnosis and management of pancreatic strictures, whether malignant or benign, remain challenging. The last 2 decades have seen dramatic progress in terms of both advanced imaging and endoscopic therapy. While plastic stents remain the cornerstone of the treatment of benign strictures, the advent of fully covered metal stents has initiated a new wave of interest in calibrating the pancreatic duct with fewer sessions. In malignant disease, palliation remains the priority and further data are necessary before offering systematic pancreatic stenting...
July 20, 2017: Clinical Endoscopy
https://www.readbyqxmd.com/read/28724223/chromium-vi-adsorption-from-wastewater-using-porous-magnetite-nanoparticles-prepared-from-titanium-residue-by-a-novel-solid-phase-reduction-method
#3
Genkuan Ren, Xinlong Wang, Penghui Huang, Benhe Zhong, Zhiye Zhang, Lin Yang, Xiushan Yang
Porous magnetite nanoparticles were successfully synthesized by reduction of titanium residue with pyrite under nitrogen protection, and characterized by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy, vibrating sample magnetometer, X-ray photoelectron spectroscope, zeta potential and Brunauer-Emmett-Teller method. The XRD analysis confirmed the formation of porous magnetite nanoparticles with single spinel structure. The SEM image demonstrated that porous magnetite nanoparticles displayed spherical shape with the average diameter of ~51nm...
July 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28724204/gait-and-balance-impairment-after-acute-methanol-poisoning
#4
Kamila Peterová, Hana Brožová, Jiří Klempíř, Irena Lišková, Ondřej Bezdíček, Petr Ridzoň, Manuela Vaněčková, Sergej Zakharov, Daniela Pelclová, Michal Miovský, Evžen Růžička
Neurological sequelae including gait impairment were reported in survivors after methanol intoxication; however, no systematic study has been published so far. We aimed to analyse gait and balance impairment in a group of Czech methanol poisoning survivors. We examined 43 patients (age 46±13 years) 2-8 months after methanol poisoning and 43 healthy controls. Investigations contained a shortened version of Falls Efficacy Scale (FES), clinical tests of gait and balance including Timed Up and Go test (TUG) and gait analysis using GaitRite(®) system, neurological and neuropsychological examination, brain imaging, EMG and tests of alcohol consumption...
July 19, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28724075/a-comprehensive-image-based-phenomic-analysis-reveals-the-complex-genetic-architecture-of-shoot-growth-dynamics-in-rice-oryza-sativa
#5
Malachy T Campbell, Qian Du, Kan Liu, Chris J Brien, Bettina Berger, Chi Zhang, Harkamal Walia
Early vigor is an important trait for many rice ( L.)-growing environments. However, genetic characterization and improvement for early vigor is hindered by the temporal nature of the trait and strong genotype × environment effects. We explored the genetic architecture of shoot growth dynamics during the early and active tillering stages by applying a functional modeling and genomewide association (GWAS) mapping approach on a diversity panel of ∼360 rice accessions. Multiple loci with small effects on shoot growth trajectory were identified, indicating a complex polygenic architecture...
July 2017: Plant Genome
https://www.readbyqxmd.com/read/28724050/higher-meld-score-increases-the-overall-cost-on-the-waiting-list-for-liver-transplantation-a-micro-costing-analysis-based-study
#6
Jose Antonio Orellana Turri, Tassia Cristina Decimoni, Leandro Augusto Ferreira, Marcio Augusto Diniz, Luciana Bertocco de Paiva Haddad, Alessandro Gonçalves Campolina
BACKGROUND: The pre-transplant period is complex and includes lots of procedures. The severity of liver disease predisposes to a high number of hospitalizations and high costs procedures. Economic evaluation studies are important tools to handle costs on the waiting list for liver transplantation. OBJECTIVE: The objective of the present study was to evaluate the total cost of the patient on the waiting list for liver transplantation and the main resources related to higher costs...
July 13, 2017: Arquivos de Gastroenterologia
https://www.readbyqxmd.com/read/28724045/spinal-tumors-in-children
#7
Andrei Fernandes Joaquim, Enrico Ghizoni, Marcelo Gomes Cordeiro Valadares, Simone Appenzeller, Simone Dos Santos Aguiar, Helder Tedeschi
Introduction: Spinal tumors are rare in the pediatric population, presenting many specific peculiarities when compared to adults. We have performed a broad narrative review to describe the most common spinal tumors in children, discussing their main characteristics and management options. Method: The authors have performed an extensive review of the peer-reviewed literature addressing the aforementioned objectives. Results: Multimodality radiological studies (plain films, 3D computed tomography scan and magnetic resonance imaging) are necessary for proper evaluation and differential diagnosis of spinal tumors in children...
May 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/28724035/spontaneous-carotid-dissection
#8
Carolina Dutra Queiroz Flumignan, Ronald Luiz Gomes Flumignan, Luis Carlos Uta Nakano, Jorge Eduardo de Amorim
Carotid dissection is a rare occurrence but it is the main cause of stroke in individuals aged less than 45 years, and can be the etiology in up to 25% of strokes in young adults. We report a case with classic image of ying yang on vascular ultrasound, which was treated according to the best available medical evidence, yielding a favorable outcome.
May 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/28723975/a-view-not-to-be-missed-salient-scene-content-interferes-with-cognitive-restoration
#9
Alexander P N Van der Jagt, Tony Craig, Mark J Brewer, David G Pearson
Attention Restoration Theory (ART) states that built scenes place greater load on attentional resources than natural scenes. This is explained in terms of "hard" and "soft" fascination of built and natural scenes. Given a lack of direct empirical evidence for this assumption we propose that perceptual saliency of scene content can function as an empirically derived indicator of fascination. Saliency levels were established by measuring speed of scene category detection using a Go/No-Go detection paradigm. Experiment 1 shows that built scenes are more salient than natural scenes...
2017: PloS One
https://www.readbyqxmd.com/read/28723958/can-single-molecule-localization-microscopy-be-used-to-map-closely-spaced-rgd-nanodomains
#10
Mahdie Mollazade, Thibault Tabarin, Philip R Nicovich, Alexander Soeriyadi, Daniel J Nieves, J Justin Gooding, Katharina Gaus
Cells sense and respond to nanoscale variations in the distribution of ligands to adhesion receptors. This makes single molecule localization microscopy (SMLM) an attractive tool to map the distribution of ligands on nanopatterned surfaces. We explore the use of SMLM spatial cluster analysis to detect nanodomains of the cell adhesion-stimulating tripeptide arginine-glycine-aspartic acid (RGD). These domains were formed by the phase separation of block copolymers with controllable spacing on the scale of tens of nanometers...
2017: PloS One
https://www.readbyqxmd.com/read/28723957/brain-synchronization-during-perception-of-facial-emotional-expressions-with-natural-and-unnatural-dynamics
#11
Dionysios Perdikis, Jakob Volhard, Viktor Müller, Kathrin Kaulard, Timothy R Brick, Christian Wallraven, Ulman Lindenberger
Research on the perception of facial emotional expressions (FEEs) often uses static images that do not capture the dynamic character of social coordination in natural settings. Recent behavioral and neuroimaging studies suggest that dynamic FEEs (videos or morphs) enhance emotion perception. To identify mechanisms associated with the perception of FEEs with natural dynamics, the present EEG (Electroencephalography)study compared (i) ecologically valid stimuli of angry and happy FEEs with natural dynamics to (ii) FEEs with unnatural dynamics, and to (iii) static FEEs...
2017: PloS One
https://www.readbyqxmd.com/read/28723938/gender-differences-in-cerebral-metabolism-for-color-processing-in-mice-a-pet-mri-study
#12
Philip C Njemanze, Mathias Kranz, Mario Amend, Jens Hauser, Hans Wehrl, Peter Brust
INTRODUCTION: Color processing is a central component of mammalian vision. Gender-related differences of color processing revealed by non-invasive functional transcranial Doppler ultrasound suggested right hemisphere pattern for blue/yellow chromatic opponency by men, and a left hemisphere pattern by women. MATERIALS AND METHODS: The present study measured the accumulation of [18F]fluorodeoxyglucose ([18F]FDG) in mouse brain using small animal positron emission tomography and magnetic resonance imaging (PET/MRI) with statistical parametric mapping (SPM) during light stimulation with blue and yellow filters compared to darkness condition...
2017: PloS One
https://www.readbyqxmd.com/read/28723878/evolution-of-surgery-for-adolescent-idiopathic-scoliosis-over-20-years-have-outcomes-improved
#13
Baron S Lonner, Yuan Ren, Burt Yaszay, Patrick J Cahill, Suken A Shah, Randal R Betz, Amer F Samdani, Harry L Shufflebarger, Peter O Newton
STUDY DESIGN: Retrospective review of a prospective Adolescent Idiopathic Scoliosis (AIS) registry OBJECTIVE.: To study the evolution of the operative approach, outcomes and complication rates in AIS surgery over the past 20 years. METHODS: 1819 AIS patients (1995-2013) with 2-year F/U were studied. Operative approach, perioperative parameters, major complication rates, and SRS outcomes were assessed. Linear regression was used to assess the trend of changes over 5-year quartiles...
July 18, 2017: Spine
https://www.readbyqxmd.com/read/28723853/high-frequency-ultrasound-description-of-sacral-tissue-characteristics-in-healthy-adults
#14
Ruth S Burk, Christine M Schubert, Anathea Pepperl, Mary Jo Grap
OBJECTIVES: The purpose of this study was to describe selected sacral tissue characteristics in a convenience sample of healthy volunteer subjects. DESIGN: Descriptive. SAMPLE AND SETTING: Fifty healthy volunteers in a clinical learning center in a school of nursing. METHODS: Sacral scans were obtained using a 20-MHz ultrasound scanning system in 3 positions: prone and 60° and 90° side-lying from the back. The images were analyzed by software in the ultrasound program using quantitative parameters of dermal thickness and density (dermal median intensity and derived number of low-echogenic pixels to total pixels [LEP:TP] ratio)...
July 18, 2017: Journal of Wound, Ostomy, and Continence Nursing
https://www.readbyqxmd.com/read/28723851/indocyanine-green-angiography-of-pachychoroid-pigment-epitheliopathy
#15
M Giray Ersoz, Serra Arf, Mumin Hocaoglu, Isil Sayman Muslubas, Murat Karacorlu
PURPOSE: To compare choroidal hyperpermeability and vessel density between eyes with central serous chorioretinopathy (CSC), those with pachychoroid pigment epitheliopathy (PPE) and those with uncomplicated pachychoroid (UCP). METHODS: We retrospectively reviewed indocyanine green angiography images of 60 patients with unilateral active CSC who had PPE (36 eyes) or UCP (24 eyes) in their fellow eyes. We used color thresholding of indocyanine green angiography images to determine choroidal vessel density...
July 18, 2017: Retina
https://www.readbyqxmd.com/read/28723848/progression-of-macular-atrophy-in-eyes-with-type-1-neovascularization-and-age-related-macular-degeneration-receiving-long-term-intravitreal-anti-vascular-endothelial-growth-factor-therapy-an-optical-coherence-tomographic-angiography-analysis
#16
Joseph G Christenbury, Nopasak Phasukkijwatana, Fatimah Gilani, K Baily Freund, SriniVas Sadda, David Sarraf
PURPOSE: To evaluate the size and location of macular atrophy in eyes with Type-1 neovascularization (NV) and age-related macular degeneration receiving chronic intravitreal anti-vascular endothelial growth factor therapy. METHODS: A retrospective review of a case series of 27 eyes with Type-1 NV and retinal pigment epithelial detachment (PED) having a minimum of 12 months follow-up was performed. Demographic information and visual acuity at baseline and the final follow-up were collected...
July 18, 2017: Retina
https://www.readbyqxmd.com/read/28723847/blindness-related-to-presumed-retinal-toxicity-after-using-perfluorocarbon-liquid-during-vitreoretinal-surgery
#17
Silvia Méndez-Martínez, Pilar Calvo, Nelson Arturo Rodriguez-Marco, Fernando Faus, Emilio Abecia, Luis Pablo
PURPOSE: To describe the presumed retinal toxicity after using specific batches of perfluorocarbon liquid ALA OCTA (Alamedics, Dornstadt, Germany) in pars plana vitrectomy. METHODS: This is an observational retrospective consecutive case series analyses of patients operated on pars plana vitrectomy for retinal detachment or intraocular lens subluxation, using the 150141 or 200114 batches of perfluorocarbon liquid ALA OCTA as assistance during the surgery in a single center...
July 18, 2017: Retina
https://www.readbyqxmd.com/read/28723846/value-of-fractal-analysis-of-optical-coherence-tomography-angiography-in-various-stages-of-diabetic-retinopathy
#18
Suruchi Bhardwaj, Edmund Tsui, Sarwar Zahid, Emma Young, Nitish Mehta, Steven Agemy, Patricia Garcia, Richard B Rosen, Joshua A Young
PURPOSE: To use fractal dimensional analysis to investigate retinal vascular disease patterns in patients with diabetic retinopathy using spectral domain optical coherence tomography angiography. METHODS: A retrospective study was conducted which included 49 eyes from 26 control subjects and 58 eyes from 35 patients known to have diabetic retinopathy. Of the 58 eyes with known retinopathy, 31 were categorized as nonproliferative diabetic retinopathy (13 mild, 9 moderate, and 9 severe) and 27 were categorized as proliferative diabetic retinopathy...
July 18, 2017: Retina
https://www.readbyqxmd.com/read/28723840/cervical-spine-evaluation-and-clearance-in-the-intoxicated-patient-a-prospective-western-trauma-association-multi-institutional-trial-and-survey
#19
Matthew J Martin, Lisa D Bush, Kenji Inaba, Saskya Byerly, Martin Schreiber, Kimberly A Peck, Galinos Barmparas, Jay Menaker, Joshua P Hazelton, Raul Coimbra, Martin D Zielinski, Carlos V R Brown, Chad G Ball, Jill R Cherry-Bukowiec, Clay Cothren Burlew, Julie Dunn, C Todd Minshall, Matthew M Carrick, Gina M Berg, Demetrios Demetriades, William Long
INTRODUCTION: Intoxication often prevents clinical clearance of the cervical spine (Csp) after trauma leading to prolonged immobilization even with a normal CT scan. We evaluated the accuracy of CT at detecting clinically significant Csp injury, and surveyed participants on related opinions and practice. METHODS: A prospective multicenter study (2013-2015) at 17 centers. All adult blunt trauma patients underwent structured clinical examination and imaging including a Csp CT, with follow-up thru discharge...
July 19, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28723817/a-systematic-review-of-the-effects-of-resistance-training-on-body-image
#20
Nicholas J SantaBarbara, James W Whitworth, Joseph T Ciccolo
The purpose of this systematic review was to identify and appraise the literature that has specifically tested the independent effects of resistance training (i.e., weight lifting) on body image in adults. A comprehensive search through December 2016 of electronic databases PubMed, Scopus, PsycNET, and Web of Science for relevant studies published in peer-reviewed journals was conducted, and PRISMA guidelines were followed. Inclusion criteria were that a study had to be: a) written in English; b) published in a peer-reviewed journal; c) conducted an assessment of body image using a validated scale before and after a stand-alone resistance training intervention (i...
July 17, 2017: Journal of Strength and Conditioning Research
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