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https://www.readbyqxmd.com/read/28734250/assessment-of-direct-exposure-and-leaching-risk-from-pahs-in-roadway-and-stormwater-system-residuals
#1
Edmund Azah, Hwidong Kim, Timothy Townsend
Wastes generated from municipal cleaning activities such as street sweeping, ditch cleaning, stormwater pond maintenance, and catch basin sediment removal require appropriate management. Beneficial use of these types of waste is a good alternative to landfilling; however, there are genuine concerns about possible soil and groundwater contamination by pollutants such as polycyclic aromatic hydrocarbons (PAHs). This study assessed the potential risks associated with beneficial use of roadway and stormwater system residuals collected from 14 cities across the state of Florida, USA...
July 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28734211/organotropism-of-methylmercury-in-fish-of-the-southeastern-of-brazil
#2
L S Azevedo, M G Almeida, W R Bastos, M S Suzuki, M C N N Recktenvald, M T S Bastos, C S Vergílio, C M M de Souza
This is one of the first studies to evaluate the effect of biometric variables (total length and weight), diet, and abiotic matrices (sediment and water column) on the bioaccumulation of methylmercury in tissues (muscle, liver, and gills) of four fish (two carnivore-invertivores, Pimelodus fur and Pachyurus adspersus; one carnivore-piscivore, Oligosarcus hepsetus; and one omnivore, Pimelodella lateristriga) in the lower section of a river in southeastern Brazil. Samples of fish (n = 120), water (n = 5) and sediment (n = 5) were collected at five sites characterized by pollution with mercury due to the use of organomercury fungicides and stream bed gold mining, commonly carried out in that section of the river in the 1980s...
July 17, 2017: Chemosphere
https://www.readbyqxmd.com/read/28734201/modification-of-chemical-properties-cu-fractionation-and-enzymatic-activities-in-an-acid-vineyard-soil-amended-with-winery-wastes-a-field-study
#3
Isabel Rodríguez-Salgado, Paula Pérez-Rodríguez, Antía Gómez-Armesto, Montserrat Díaz-Raviña, Juan Carlos Nóvoa-Muñoz, Manuel Arias-Estévez, David Fernández-Calviño
The effects of adding two winery wastes, perlite waste (PW) and bentonite waste (BW), to an acid vineyard soil were assessed using some chemical and biological soil properties in a field study that lasted 18 months. The addition of PW (up to 81 Mg ha(-1)) had neither significant nor permanent effects on soil characteristics such as the pH, organic matter content or nutrient concentrations, the amounts of copper or zinc, or the electrical conductivity. Moreover, no persistent negative effects were found on the enzymatic activities after PW application...
July 19, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28734114/effects-of-pomegranate-peel-extract-on-histopathology-testosterone-levels-and-sperm-of-testicular-torsion-detorsion-induced-in-adult-wistar-rats
#4
Mandana Beigi Boroujeni, Said Saied Shahrokhi, Mahdi Birjandi, Abolfazl Abbaszadeh, Fatemeh Beyranvand, Sakineh Hamoleh, Zohreh Zandbaf, Mohammadreza Gholami
Background In the present study, effects of pomegranate peel extract have been evaluated on decreasing the damage induced by testis torsion. Methods In this study, 30 adult Wistar rats were randomly divided into three groups of control, experimental (1) and experimental (2). CONTROL: no ischemia, received vehicle alone, exposed to sham operation. Experimental (1): Received the vehicle alone during ischemia followed by 60 days' reperfusion. Experimental (2): After performing ischemia reperfusion, 500 mg/kg of pomegranate peel extract has been used for 60 days...
July 22, 2017: Journal of Complementary & Integrative Medicine
https://www.readbyqxmd.com/read/28732439/the-extract-of-portulaca-oleracea-and-its-constituent-alpha-linolenic-acid-affects-serum-oxidant-levels-and-inflammatory-cells-in-sensitized-rats
#5
Mahsa Kaveh, Akram Eidi, Ali Nemati, Mohammad Hossein Boskabady
The effects of Portulaca oleracea and its constituent, alpha linolenic acid on serum oxidant levels and inflammatory cells in sensitized rats were examined. Eight groups of rats including control, sensitized, sensitized rats treated with 1, 2 and 4 mg/mL extract of P. oleracea, 0.2 and 0.4 mg/mL alpha linolenic acid (ALA) and 1.25 μg/mL dexamethaswere studied serum levels of superoxide dismutase (SOD), catalase (CAT, thiol groups, NO2, NO3, and Malondialdehyde (MDA) as well as total and differential WBC in blood were measured...
June 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/28732391/a-new-intraductal-radiofrequency-ablation-device-for-inoperable-biliopancreatic-tumors-complicated-by-obstructive-jaundice-the-ignite-1-study
#6
Wim Laleman, Schalk van der Merwe, Len Verbeke, Dirk Vanbeckevoort, Raymond Aerts, Hans Prenen, Eric Van Cutsem, Chris Verslype
Background and study aims Biliary stenting of unresectable malignant bile duct obstruction is generally accepted as the standard of care but it can be hampered by tumor ingrowth and stent dysfunction. We aimed to test the feasibility, safety, and biliary patency rate of a new endoscopically applied intraductal radiofrequency ablation (RFA) device. Patients and methods Eighteen patients with inoperable malignant biliary obstruction underwent endoscopic retrograde cholangiopancreatography (ERCP)-directed RFA and stenting...
July 21, 2017: Endoscopy
https://www.readbyqxmd.com/read/28732354/influence-of-body-mass-index-on-postoperative-complications-after-thymectomy-in-myasthenia-gravis-patients
#7
Xu-Dong Liu, Ming-Rui Shao, Lei Sun, Lin Zhang, Xin-Shan Jia, Wen-Ya Li
OBJECTIVES: It is not clear whether being overweight or obese influences postoperative complications in myasthenia gravis (MG) patients. We retrospectively investigated an association between body mass index (BMI) and postoperative complications in MG. MATERIALS AND METHODS: Fifty-nine MG patients who had undergone transsternal thymectomy were classified as low or high BMI based on the criteria for Asian-Pacific populations. An association between BMI and complications was analyzed...
July 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28732315/total-and-ionized-magnesium-testing-in-the-surgical-intensive-care-unit-opportunities-for-improved-laboratory-and-pharmacy-utilization
#8
Daniel Dante Yeh, Nalin Chokengarmwong, Yuchiao Chang, Liyang Yu, Colleen Arsenault, Joseph Rudolf, Elizabeth Lee-Lewandrowski, Kent Lewandrowski
PURPOSE: Ionized fraction (iMg) is the physiologically active form of magnesium (Mg); total Mg may not accurately reflect iMg status. Erroneously "low" Mg levels may result in unnecessary repetitive testing. MATERIALS AND METHODS: From 11/2015 to 01/2016, patients ordered for Mg from a pilot ICU also had iMg tested. Weighted kappa statistic was used to assess agreement between Mg categories (low, normal, high). Predictors of unnecessary repeated Mg testing and repletion using data were explored through logistic regression models using GEE techniques to account for repeated measurements in both bivariate and multivariable analyses...
July 11, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28732275/plot-farm-and-watershed-scale-effects-of-coffee-cultivation-in-runoff-and-sediment-production-in-western-puerto-rico
#9
Carlos E Ramos-Scharrón, Yasiel Figueroa-Sánchez
The combination of a topographically abrupt wet-tropical setting with the high level of soil exposure that typifies many sun-grown coffee farms represents optimal conditions for high erosion rates. Although traditionally considered as a main cause for water resource degradation, limited empirical evidence has existed to document its true contribution. This study relies on plot-scale experimental results conducted in western Puerto Rico to assess the impact of cultivated surfaces and farm access roads on runoff and sediment production from the plot to the farm and watershed scales...
July 18, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28732266/effect-of-heat-treatments-on-the-microstructure-and-formability-of-al-mg-mn-sc-zr-alloy
#10
Yudai Miyake, Yukio Sato, Ryo Teranishi, Kenji Kaneko
Microstructures and formability of scandium and zirconium added Al-Mg-Mn alloy sheets with various heating conditions were examined to improve their mechanical properties. Formability of these samples were judged by the Lankford value, r-value. It was possible to fabricate mechanically balanced Al-Mg-Mn-Sc-Zr alloy with high hardness 76.2 Hv and with high formability with r=1.2, by not only adding scandium and zirconium but also optimizing the heat treatment conditions.
July 11, 2017: Micron: the International Research and Review Journal for Microscopy
https://www.readbyqxmd.com/read/28732187/do-genetic-markers-of-inflammation-modify-the-relationship-between-periodontitis-and-nonalcoholic-fatty-liver-disease-findings-from-the-ship-study
#11
A A Akinkugbe, C L Avery, A S Barritt, S R Cole, M Lerch, J Mayerle, S Offenbacher, A Petersmann, M Nauck, H Völzke, G D Slade, G Heiss, T Kocher, B Holtfreter
An association between periodontitis and nonalcoholic fatty liver disease (NAFLD) has been reported by experimental animal and epidemiologic studies. This study investigated whether circulating levels of serum C-reactive protein (CRP) and a weighted genetic CRP score representing markers of inflammatory burden modify the association between periodontitis and NAFLD. Data came from 2,481 participants of the Study of Health in Pomerania who attended baseline examination that occurred between 1997 and 2001. Periodontitis was defined as the percentage of sites (0%, <30%, ≥30%) with probing pocket depth (PD) ≥4 mm, and NAFLD status was determined using liver ultrasound assessment...
July 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28732164/electrochemical-intercalation-of-mg-2-into-anhydrous-and-hydrated-crystalline-tungsten-oxides
#12
Ruocun Wang, Ching-Chang Chung, Yang Liu, Jacob L Jones, Veronica Augustyn
The reversible intercalation of multivalent cations, especially Mg(2+), into a solid-state electrode is an attractive mechanism for next-generation energy storage devices. These reactions typically exhibit poor kinetics due to a high activation energy for interfacial charge-transfer and slow solid-state diffusion. Interlayer water in V2O5 and MnO2 has been shown to improve Mg(2+) intercalation kinetics in non-aqueous electrolytes. Here, the effect of structural water on Mg(2+) intercalation in non-aqueous electrolytes is examined in crystalline WO3 and the related hydrated and layered WO3·nH2O (n = 1, 2)...
July 21, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28732154/ironing-out-genes-in-the-environment-an-experimental-study-of-the-dna-goethite-interface
#13
Michael P Schmidt, Carmen Enid Martinez
DNA fate in soil plays an important role in the cycling of genetic information in the environment. Adsorption onto mineral surfaces has great impact on this function. This study probes the kinetics, equilibrium behavior and bonding mechanisms associated with adsorption of DNA onto goethite, a common soil mineral. Surface sensitive ATR-FTIR and XPS approaches are applied to directly characterize the DNA-goethite interface. Adsorption kinetics follow a pseudo-first order model, suggesting adsorption rate is surface limited...
July 21, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28732106/specific-%C3%AE-7-nicotinic-acetylcholine-receptor-agonist-ameliorates-isoproterenol-induced-cardiac-remodeling-in-mice-through-tgf-%C3%AE-1-smad3-pathway
#14
Yong-Hua Yang, Huan-Le Fang, Ming Zhao, Xiang-Lan Wei, Ning Zhang, Shun Wang, Yi Lu, Xiao-Jiang Yu, Lei Sun, Xi He, Dong-Ling Li, Jin-Jun Liu, Wei-Jin Zang
It is well-accepted that inflammation plays an important role in the development of cardiac remodeling and that therapeutic approaches targeting inflammation can inhibit cardiac remodeling. Although a large amount of evidence indicates that activation of α7 nicotinic acetylcholine receptor (α7nAChR) causes an anti-inflammatory effect, the role of α7nAChR in cardiac remodeling and the underlying mechanism have not been established. To investigate the effect of the specific α7nAChR agonist, PNU282987, on cardiac remodeling induced by isoproterenol (ISO 60 mg/kg/d) in mice, the cardiomyocyte cross-sectional area (CSA) and collagen volume fraction were evaluated by hematoxylin and eosin (HE) and Masson staining, respectively...
July 21, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28732018/carboplatin-with-intravenous-and-subsequent-oral-administration-of-vinorelbine-in-resected-non-small-cell-lung-cancer-in-real-world-set-up
#15
Vítězslav Kolek, Ivona Grygárková, Leona Koubková, Jana Skřičková, Jiřina Švecová, Dimka Sixtová, Jiří Bartoš, Aleš Tichopád
OBJECTIVES: Adjuvant cisplatin-based chemotherapy is recommended for routine use in patients with Stage IIA, IIB or IIIA non-small cell lung cancer (NSCLC) after complete resection. Results obtained for Stage IB were not conclusive. While vinorelbine plus cisplatin is the preferred choice after resection, combining vinorelbine with carboplatin promises improved compliance and delivery of drugs due to lower toxicity. We evaluated the impact of this option on treatment compliance and survival under real-world conditions...
2017: PloS One
https://www.readbyqxmd.com/read/28731834/the-essential-oil-of-hyptis-mutabilis-in-ichthyophthirius-multifiliis-infection-and-its-effect-on-hematological-biochemical-and-immunological-parameters-in-silver-catfish-rhamdia-quelen
#16
Jessyka Arruda da Cunha, Fernando Jonas Sutili, Anita Motta Oliveira, Leticia Gressler, Cecilia de Ávila Scheeren, Lenise Lima Silva, Rodrigo Vaucher, Bernardo Baldisserotto, Berta Heinzmann
This study evaluated the activity of leaf essential oil (EO) from Hyptis mutabilis as well as its major constituent, (-)-globulol, in infections by the parasite Ichthyophthirius multifiliis (ich). Effects on hematological, biochemical and immunological parameters of silver catfish, Rhamdia quelen, exposed to same samples also were evaluated. In the first experiment, naturally infected fish were treated with EO (0, 10 and 20 mgL-1) and ethanol, using several methods of exposure. Fish mortality and the number of trophonts per fish were assessed after 48 and 96 hr...
July 21, 2017: Journal of Parasitology
https://www.readbyqxmd.com/read/28731709/agronomic-effectiveness-of-granulated-and-powdered-p-exchanged-mg-al-ldh-relative-to-struvite-and-map
#17
Maarten Everaert, Fien Degryse, Mike J McLaughlin, Dirk E De Vos, Erik Smolders
Layered double hydroxides (LDHs) used to recover P from wastewater have recently been proposed as new slow-release fertilizers. Here, the use of P-exchanged Mg-Al LDHs as powdered or granulated fertilizer is explored and compared with mono-ammonium phosphate (MAP), a fully water-soluble fertilizer, and with struvite, a recycled phosphate fertilizer with lower solubility. First, these three fertilizers were compared in a 100-day incubation experiment using P diffusion visualization and chemical analysis to assess P release from either granules or powdered fertilizer in three different soils...
July 21, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28731640/are-products-sold-in-university-vending-machines-nutritionally-poor-a-food-environment-audit
#18
Amanda Grech, Lana Hebden, Rajshri Roy, Margaret Allman-Farinelli
AIM: (i) To audit the nutritional composition, promotion and cost of products available from vending machines available to young adults; and (ii) to examine the relationship between product availability and sales. METHODS: A cross-sectional analysis of snacks and beverages available and purchased at a large urban university was conducted between March and September 2014. Sales were electronically tracked for nine months. RESULTS: A total of 61 vending machines were identified; 95% (n = 864) of the available snacks and 49% of beverages (n = 455) were less-healthy items...
April 2017: Nutrition & Dietetics: the Journal of the Dietitians Association of Australia
https://www.readbyqxmd.com/read/28731630/improved-pks-gene-expression-with-strong-endogenous-promoter-resulted-in-geldanamycin-yield-increase
#19
Xinran Wang, Xinjuan Ning, Qinqin Zhao, Qianjin Kang, Linquan Bai
The type I polyketide geldanamycin is a potent anti-tumor reagent. Its biosynthesis includes three steps: the biosynthesis of precursors, such as 3-amino-5-hydroxybenzoic acid (AHBA), the PKS chain extension, and the post-PKS modifications. According to the genomic and transcriptomic analysis, the PKS chain extension was deduced to be the rate-limiting step for geldanamycin production in Streptomyces hygroscopicus XM201. in order to improve the expression of PKS genes, a strong endogenous promoter 5063p was obtained based on the transcriptomic analysis and XylE enzymatic assay...
July 21, 2017: Biotechnology Journal
https://www.readbyqxmd.com/read/28731609/dietary-sodium-and-potassium-intake-and-their-association-with-blood-pressure-in-a-non-hypertensive-iranian-adult-population-isfahan-salt-study
#20
Noushin Mohammadifard, Arsalan Khaledifar, Alireza Khosravi, Fatemeh Nouri, Ali Pourmoghadas, Awat Feizi, Ahmad Esmaillzadeh, Nizal Sarrafzadegan
AIM: The association of sodium (Na) and potassium (K) intake with blood pressure (BP) is an ongoing debate, especially in central Iran. We aimed to examine the mean Na and K intake, major sources of Na and the relationship between BP and dietary and urinary Na and K. METHODS: This cross-sectional study was performed in central Iran in 2013-2014. A total of 796 non-hypertensive adults aged >18 years were randomly recruited. The semi-quantitative food frequency questionnaire was used to assess dietary Na and K intake...
July 2017: Nutrition & Dietetics: the Journal of the Dietitians Association of Australia
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