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https://www.readbyqxmd.com/read/28654807/per-and-poly-fluoroalkyl-compounds-in-freshwater-fish-from-the-rh%C3%A3-ne-river-influence-of-fish-size-diet-prey-contamination-and-biotransformation
#1
Marc Babut, Pierre Labadie, Caroline Simonnet-Laprade, Gabriel Munoz, Marie-Claude Roger, Benoit J D Ferrari, Hélène Budzinski, Eve Sivade
Pools of aquatic plants and benthic invertebrates were collected along with 47 individuals from three cyprinid fish species (Barbus barbus, Gobio gobio, Rutilus rutilus) at a site in the Rhône River (France). Carbon and nitrogen isotopic ratios (δ(13)C and δ(15)N) and a wide range of per- and poly-fluorinated chemicals (PFASs) were analysed in all samples. The sum of PFAS concentrations (ΣPFAS) increased from aquatic plants to fish dorsal muscles; molecular profiles were dominated by C9-C13 perfluorocarboxylic acids (PFCAs), while perfluorooctane sulfonate (PFOS) and perfluorooctane sulfonamide (FOSA) were detected in all samples at lower concentrations...
June 24, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28652771/the-prognostic-value-of-cyclooxygenase-2-expression-in-patients-with-esophageal-cancer-evidence-from-a-meta-analysis
#2
REVIEW
Zaoxiu Hu, Yanlong Yang, Yonghe Zhao, Yunchao Huang
Published studies have investigated the prognostic role of cyclooxygenase-2 (COX-2) expression in patients with esophageal cancer (EC), but the result remains controversial. Thus, this meta-analysis was conducted to comprehensively evaluate the impact of COX-2 expression on the prognostic value in patients with EC. Relevant studies were identified from PubMed, EMBASE, and Web of Science databases. Studies that detected the COX-2 expression by immunohistochemistry and evaluated the relationship between COX-2 expression and overall survival (OS) or clinicopathological parameters were used in our analysis...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28652721/alpha-1-antitrypsin-pi-sz-genotype-estimated-prevalence-and-number-of-sz-subjects-worldwide
#3
Ignacio Blanco, Patricia Bueno, Isidro Diego, Sergio Pérez-Holanda, Beatriz Lara, Francisco Casas-Maldonado, Cristina Esquinas, Marc Miravitlles
The alpha-1 antitrypsin (AAT) haplotype Pi*S, when inherited along with the Pi*Z haplotype to form a Pi*SZ genotype, can be associated with pulmonary emphysema in regular smokers, and less frequently with liver disease, panniculitis, and systemic vasculitis in a small percentage of people, but this connection is less well established. Since the detection of cases can allow the application of preventive measures in patients and relatives with this congenital disorder, the objective of this study was to update the prevalence of the SZ genotype to achieve accurate estimates of the number of Pi*SZ subjects worldwide, based on studies performed according to the following criteria: 1) samples representative of the general population, 2) AAT phenotyping characterized by adequate methods, and 3) selection of studies with reliable results assessed with a coefficient of variation calculated from the sample size and 95% confidence intervals...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28651901/benchmarking-numerical-codes-for-tracer-transport-with-the-aid-of-laboratory-scale-experiments-in-2d-heterogeneous-porous-media
#4
Fadji Hassane Maina, Philippe Ackerer, Anis Younes, Alberto Guadagnini, Brian Berkowitz
We present a combined experimental and numerical modeling study that addresses two principal questions: (i) is any particular Eulerian-based method used to solve the classical advection-dispersion equation (ADE) clearly superior (relative to the others), in terms of yielding solutions that reproduce BTCs of the kind that are typically sampled at the outlet of a laboratory cell? and (ii) in the presence of matches of comparable quality against such BTCs, do any of these methods render different (or similar) numerical BTCs at locations within the domain? To address these questions, we obtained measurements from carefully controlled laboratory experiments, and employ them as a reference against which numerical results are benchmarked and compared...
June 7, 2017: Journal of Contaminant Hydrology
https://www.readbyqxmd.com/read/28650562/the-economic-value-of-hybrid-single-photon-emission-computed-tomography-with-computed-tomography-imaging-in-pulmonary-embolism-diagnosis
#5
Lauren K Toney, Richard D Kim, Swetha R Palli
OBJECTIVE: To quantify the potential economic value of single-photon emission computed tomography (SPECT) with computed tomography (CT; SPECT/CT) versus CT pulmonary angiography (CTPA), ventilation-perfusion (V/Q) planar scintigraphy and V/Q SPECT imaging modalities for diagnosing suspected pulmonary embolism (PE) patients in an emergency setting. METHODS: An Excel-based simulation model was developed to compare SPECT/CT versus the alternate scanning technologies from a payer's perspective...
June 26, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28648465/planum-temporale-asymmetry-in-people-who-stutter
#6
Patricia M Gough, Emily L Connally, Peter Howell, David Ward, Jennifer Chesters, Kate E Watkins
PURPOSE: Previous studies have reported that the planum temporale - a language-related structure that normally shows a leftward asymmetry - had reduced asymmetry in people who stutter (PWS) and reversed asymmetry in those with severe stuttering. These findings are consistent with the theory that altered language lateralization may be a cause or consequence of stuttering. Here, we re-examined these findings in a larger sample of PWS. METHODS: We evaluated planum temporale asymmetry in structural MRI scans obtained from 67 PWS and 63 age-matched controls using: 1) manual measurements of the surface area; 2) voxel-based morphometry to automatically calculate grey matter density...
June 16, 2017: Journal of Fluency Disorders
https://www.readbyqxmd.com/read/28648207/stage-progression-and-need-for-renal-replacement-therapy-in-a-renal-protection-programme-in-colombia-a-cohort-study
#7
Carlos Enrique Yepes Delgado, Sara Pérez Dávila, Marcela Montoya Jaramillo, Beatriz Elena Orrego Orozco
BACKGROUND: Due to the global burden represented by chronic kidney disease (CKD), the World Health Organization encouraged the implementation of renal protection programmes (RPP) to affect its incidence through prevention and control measures. OBJECTIVES: To assess the effectiveness of a Colombian RPP in terms of its effect on the stage progression of CKD and the need for renal replacement therapy (RRT). METHODS: An analytical study that monitored 2cohorts of patients diagnosed with CKD...
May 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/28647327/genomic-analysis-of-cow-mortality-and-milk-production-using-a-threshold-linear-model
#8
S Tsuruta, D A L Lourenco, I Misztal, T J Lawlor
The objective of this study was to investigate the feasibility of genomic evaluation for cow mortality and milk production using a single-step methodology. Genomic relationships between cow mortality and milk production were also analyzed. Data included 883,887 (866,700) first-parity, 733,904 (711,211) second-parity, and 516,256 (492,026) third-parity records on cow mortality (305-d milk yields) of Holsteins from Northeast states in the United States. The pedigree consisted of up to 1,690,481 animals including 34,481 bulls genotyped with 36,951 SNP markers...
June 21, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28645301/the-sternal-management-accelerated-recovery-trial-s-m-a-r-t-standard-restrictive-versus-an-intervention-of-modified-sternal-precautions-following-cardiac-surgery-via-median-sternotomy-study-protocol-for-a-randomised-controlled-trial
#9
Md Ali Katijjahbe, Linda Denehy, Catherine L Granger, Alistair Royse, Colin Royse, Rebecca Bates, Sarah Logie, Sandy Clarke, Doa El-Ansary
BACKGROUND: The routine implementation of sternal precautions to prevent sternal complications that restrict the use of the upper limbs is currently worldwide practice following a median sternotomy. However, evidence is limited and drawn primarily from cadaver studies and orthopaedic research. Sternal precautions may delay recovery, prolong hospital discharge and be overly restrictive. Recent research has shown that upper limb exercise reduces post-operative sternal pain and results in minimal micromotion between the sternal edges as measured by ultrasound...
June 23, 2017: Trials
https://www.readbyqxmd.com/read/28645203/neurosurgical-randomized-controlled-trials-distance-travelled
#10
Tej D Azad, Anand Veeravagu, Vaishali Mittal, Rogelio Esparza, Eli Johnson, John P A Ioannidis, Gerald A Grant
BACKGROUND: The evidence base for many neurosurgical procedures has been limited. We performed a comprehensive and systematic analysis of study design, quality of reporting, and trial results of neurosurgical randomized controlled trials (RCTs). OBJECTIVE: To systematically assess the design and quality characteristics of neurosurgical RCTs. METHODS: From January 1961 to June 2016, RCTs with >5 patients assessing any 1 neurosurgical procedure against another procedure, nonsurgical treatment, or no treatment were retrieved from MEDLINE, Scopus, and Cochrane Library...
June 21, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28644820/investigation-of-real-tissue-water-equivalent-path-lengths-using-an-efficient-dose-extinction-method
#11
Rongxiao Zhang, Esther Baer, Kyung-Wook Jee, Gregory C Sharp, Jay Flanz, Hsiao-Ming Lu
For proton therapy, an accurate conversion of CT HU to relative stopping power (RSP) is essential. Validation of the conversion based on real tissue samples is more direct than the current practice solely based on tissue substitutes and can potentially address variations over the population. Based on a novel dose extinction method, we measured water equivalent path lengths (WEPL) on animal tissue samples to evaluate the accuracy of CT HU to RSP conversion and potential variations over a population. A broad proton beam delivered a spread out Bragg peak to the samples sandwiched between a water tank and a 2D ion-chamber detector...
June 23, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28644576/size-dependency-of-tree-growth-response-to-drought-among-norway-spruce-and-european-beech-individuals-in-monospecific-and-mixed-species-stands
#12
Haiyu Ding, Hans Pretzsch, Gerhard Schütze, Thomas Rötzer
Climatic anomalies have resulted in changing forest productivity, increasing tree mortality in Central and Southern Europe. This has resulted in more severe and frequent ecological disturbances to the forest stands. This study analysed the size dependency of growth response to drought years based on 384 tree individuals of Norway spruce (Picea abies [L.] Karst.) and European beech (Fagus sylvatica [L.]) in Bavaria, Germany. Samples were collected in both monospecific and mixed-species stands. To quantify the growth response of drought stress, indices including basal area increment, resistance, recovery, and resilience were calculated from tree ring measurements of increment cores...
June 23, 2017: Plant Biology
https://www.readbyqxmd.com/read/28644420/within-what-distance-does-greenness-best-predict-physical-health-a-systematic-review-of-articles-with-gis-buffer-analyses-across-the-lifespan
#13
REVIEW
Matthew Browning, Kangjae Lee
Is the amount of "greenness" within a 250-m, 500-m, 1000-m or a 2000-m buffer surrounding a person's home a good predictor of their physical health? The evidence is inconclusive. We reviewed Web of Science articles that used geographic information system buffer analyses to identify trends between physical health, greenness, and distance within which greenness is measured. Our inclusion criteria were: (1) use of buffers to estimate residential greenness; (2) statistical analyses that calculated significance of the greenness-physical health relationship; and (3) peer-reviewed articles published in English between 2007 and 2017...
June 23, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28644149/thermal-transport-in-monolayer-inse
#14
Arun Nissimagoudar, Jinlong Ma, Yani Chen, Wu Li
Two-dimensional InSe, a recently synthesized semiconductor having a moderate band gap, has gained attention due to its ultra high mobility and high photo-responsivity. In this work, we calculate the lattice thermal conductivity (κ) of monolayer InSe by solving the phonon Boltzmann transport equation (BTE) with first-principles calculated inter atomic force constants. κ of monolayer InSe is isotropic and found to be around 27.6 W/m-K at room temperature along the in-plane direction. The size dependence of κ shows the size effect can persist up-to 20 μm...
June 23, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28643030/hospital-electronic-prescribing-system-implementation-impact-on-discharge-information-communication-and-prescribing-errors-a-before-and-after-study
#15
Pamela Ruth Mills, Anita Elaine Weidmann, Derek Stewart
PURPOSE: The study aimed to test the hypothesis that hospital electronic prescribing and medicine administration system (HEPMA) implementation impacted patient discharge letter quality, nature and frequency of prescribing errors. METHOD: A quasi experimental before and after retrospective case note review was conducted in one United Kingdom district general hospital. The total sample size was 318 (random samples of 159 before and after implementation), calculated to achieve a 10% error reduction with a power of 80% and p < 0...
June 22, 2017: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28642197/risk-of-hepatocellular-cancer-in-hcv-patients-treated-with-direct-acting-antiviral-agents
#16
Fasiha Kanwal, Jennifer Kramer, Steven M Asch, Maneerat Chayanupatkul, Yumei Cao, Hashem B El-Serag
BACKGROUND AND AIMS: The risk of hepatocellular cancer (HCC) after sustained virological response (SVR) with direct acting antivirals (DAA) is unclear. Our aim was to examine the risk and determinants of HCC in patients cured with DAA. METHODS: We conducted a retrospective cohort study of HCV patients who were treated with DAA in any of the 129 Veterans Health Administration hospitals between 1/1/2015 and 12/31/2015. We calculated the annual incidence rates for HCC by SVR...
June 19, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28641175/atmospheric-dust-deposition-on-soils-around-an-abandoned-fluorite-mine-hammam-zriba-ne-tunisia
#17
Chaima Djebbi, Fredj Chaabani, Oriol Font, Ignasi Queralt, Xavier Querol
The present study focuses on the eolian dispersion and dust deposition, of major and trace elements in soils in a semi-arid climate, around an old fluorite (CaF2) and barite (BaSO4) mine, located in Hammam Zriba in Northern Tunisia. Ore deposits from this site contain a high amount of metal sulphides constituting heavy metal pollution in the surrounding environment. Samples of waste from the surface of mine tailings and agricultural topsoil samples in the vicinity of the mine were collected. The soil samples and a control sample from unpolluted area, were taken in the direction of prevailing northwest and west winds...
June 19, 2017: Environmental Research
https://www.readbyqxmd.com/read/28640651/association-of-the-lipoprotein-lipase-gene-ser447ter-polymorphism-with-hypertension-and-blood-pressure-variation-evidence-from-an-updated-meta-analysis
#18
June Wang, Shenlin Du, Jiamin Wang, Man Zhu, Xue Wen, Weiqing Yang
The polymorphism of lipoprotein lipase (LPL) gene Ser447Ter (S447X) has long been linked to hypertension and blood pressure variation, but the established data remained controversial. To better elucidate this inconsistency, a meta-analysis was conducted. We comprehensively searched electronic databases, including Pubmed, EMBASE, China National Knowledge Infrastructure (CNKI), Web of Science, for all literatures with the last update on February 2016. The strength of association was calculated by using odds ratios (ORs) and weighted mean differences (WMDs) with corresponding 95% confidence intervals (CIs)...
June 22, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28640484/reporting-of-imaging-diagnostic-accuracy-studies-with-focus-on-mri-subgroup-adherence-to-stard-2015
#19
Patrick Jiho Hong, Daniel A Korevaar, Trevor A McGrath, Hedyeh Ziai, Robert Frank, Mostafa Alabousi, Patrick M M Bossuyt, Matthew D F McInnes
PURPOSE: To evaluate adherence of diagnostic accuracy studies in imaging journals to the STAndards for Reporting of Diagnostic accuracy studies (STARD) 2015. The secondary objective was to identify differences in reporting for magnetic resonance imaging (MRI) studies. MATERIALS AND METHODS: MEDLINE was searched for diagnostic accuracy studies published in imaging journals in 2016. Studies were evaluated for adherence to STARD 2015 (30 items, including expanded imaging specific subitems)...
June 22, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28639889/the-association-between-rar%C3%AE-and-fhit-promoter-methylation-and-the-carcinogenesis-of-patients-with-cervical-carcinoma-a-meta-analysis
#20
Ruming Shu, Jie He, Chengzhen Wu, Jun Gao
The RARβ and FHIT promoter methylation are observed in some cervical carcinoma. However, the association between RARβ and FHIT promoter methylation and cervical carcinogenesis remains unclear. This study was carried out to evaluate the correlation between RARβ or FHIT promoter methylation and cervical carcinogenesis. Eligible publications were searched via online databases. The combined odds ratios and corresponding 95% confidence intervals were calculated and summarized. In all, 17 eligible articles on RARβ and FHIT promoter methylation were identified in the study...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
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