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https://www.readbyqxmd.com/read/28214594/association-between-light-at-night-melatonin-secretion-sleep-deprivation-and-the-internal-clock-health-impacts-and-mechanisms-of-circadian-disruption
#1
REVIEW
Yvan Touitou, Alain Reinberg, David Touitou
Exposure to Artificial Light At Night (ALAN) results in a disruption of the circadian system, which is deleterious to health. In industrialized countries, 75% of the total workforce is estimated to have been involved in shift work and night work. Epidemiologic studies, mainly of nurses, have revealed an association between sustained night work and a 50-100% higher incidence of breast cancer.The potential and multifactorial mechanisms of the effects include the suppression of melatonin secretion by ALAN, sleep deprivation, and circadian disruption...
February 15, 2017: Life Sciences
https://www.readbyqxmd.com/read/28213724/mobile-phone-use-and-risk-of-brain-tumours-a-systematic-review-of-association-between-study-quality-source-of-funding-and-research-outcomes
#2
Manya Prasad, Prachi Kathuria, Pallavi Nair, Amit Kumar, Kameshwar Prasad
Mobile phones emit electromagnetic radiations that are classified as possibly carcinogenic to humans. Evidence for increased risk for brain tumours accumulated in parallel by epidemiologic investigations remains controversial. This paper aims to investigate whether methodological quality of studies and source of funding can explain the variation in results. PubMed and Cochrane CENTRAL searches were conducted from 1966 to December 2016, which was supplemented with relevant articles identified in the references...
February 17, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28207828/the-wide-spectrum-high-biocidal-potency-of-bioxy-formulation-when-dissolved-in-water-at-different-concentrations
#3
Dori Dagher, Ken Ungar, Richard Robison, Fadi Dagher
Traditional surface disinfectants that have long been applied in medicine, animal husbandry, manufacturing and institutions are inconvenient at best and dangerous at worst. Moreover, some of these substances have adverse environmental impacts: for example, quaternary ammonium compounds ("quats") are reproductive toxicants in both fish and mammals. Halogens are corrosive both to metals and living tissues, are highly reactive, can be readily neutralized by metals, and react with organic matter to form toxic, persistent by-products such as dioxins and furans...
2017: PloS One
https://www.readbyqxmd.com/read/28196534/comparative-genomics-reveals-high-biological-diversity-and-specific-adaptations-in-the-industrially-and-medically-important-fungal-genus-aspergillus
#4
Ronald P de Vries, Robert Riley, Ad Wiebenga, Guillermo Aguilar-Osorio, Sotiris Amillis, Cristiane Akemi Uchima, Gregor Anderluh, Mojtaba Asadollahi, Marion Askin, Kerrie Barry, Evy Battaglia, Özgür Bayram, Tiziano Benocci, Susanna A Braus-Stromeyer, Camila Caldana, David Cánovas, Gustavo C Cerqueira, Fusheng Chen, Wanping Chen, Cindy Choi, Alicia Clum, Renato Augusto Corrêa Dos Santos, André Ricardo de Lima Damásio, George Diallinas, Tamás Emri, Erzsébet Fekete, Michel Flipphi, Susanne Freyberg, Antonia Gallo, Christos Gournas, Rob Habgood, Matthieu Hainaut, María Laura Harispe, Bernard Henrissat, Kristiina S Hildén, Ryan Hope, Abeer Hossain, Eugenia Karabika, Levente Karaffa, Zsolt Karányi, Nada Kraševec, Alan Kuo, Harald Kusch, Kurt LaButti, Ellen L Lagendijk, Alla Lapidus, Anthony Levasseur, Erika Lindquist, Anna Lipzen, Antonio F Logrieco, Andrew MacCabe, Miia R Mäkelä, Iran Malavazi, Petter Melin, Vera Meyer, Natalia Mielnichuk, Márton Miskei, Ákos P Molnár, Giuseppina Mulé, Chew Yee Ngan, Margarita Orejas, Erzsébet Orosz, Jean Paul Ouedraogo, Karin M Overkamp, Hee-Soo Park, Giancarlo Perrone, Francois Piumi, Peter J Punt, Arthur F J Ram, Ana Ramón, Stefan Rauscher, Eric Record, Diego Mauricio Riaño-Pachón, Vincent Robert, Julian Röhrig, Roberto Ruller, Asaf Salamov, Nadhira S Salih, Rob A Samson, Erzsébet Sándor, Manuel Sanguinetti, Tabea Schütze, Kristina Sepčić, Ekaterina Shelest, Gavin Sherlock, Vicky Sophianopoulou, Fabio M Squina, Hui Sun, Antonia Susca, Richard B Todd, Adrian Tsang, Shiela E Unkles, Nathalie van de Wiele, Diana van Rossen-Uffink, Juliana Velasco de Castro Oliveira, Tammi C Vesth, Jaap Visser, Jae-Hyuk Yu, Miaomiao Zhou, Mikael R Andersen, David B Archer, Scott E Baker, Isabelle Benoit, Axel A Brakhage, Gerhard H Braus, Reinhard Fischer, Jens C Frisvad, Gustavo H Goldman, Jos Houbraken, Berl Oakley, István Pócsi, Claudio Scazzocchio, Bernhard Seiboth, Patricia A vanKuyk, Jennifer Wortman, Paul S Dyer, Igor V Grigoriev
BACKGROUND: The fungal genus Aspergillus is of critical importance to humankind. Species include those with industrial applications, important pathogens of humans, animals and crops, a source of potent carcinogenic contaminants of food, and an important genetic model. The genome sequences of eight aspergilli have already been explored to investigate aspects of fungal biology, raising questions about evolution and specialization within this genus. RESULTS: We have generated genome sequences for ten novel, highly diverse Aspergillus species and compared these in detail to sister and more distant genera...
February 14, 2017: Genome Biology
https://www.readbyqxmd.com/read/28188891/3-2-deoxy-%C3%AE-d-erythro-pentafuranosyl-pyrimido-1-2-%C3%AE-purin-10-3h-one-deoxyguanosine-adducts-of-workers-exposed-to-asbestos-fibers
#5
Stefano Bonassi, Filippo Cellai, Armelle Munnia, Donatella Ugolini, Alfonso Cristaudo, Monica Neri, Mirta Milić, Alessandra Bonotti, Roger W Giese, Marco E M Peluso
Asbestos is the commercial name for a group of silicate minerals naturally occurring in the environment and widely used in the industry. Asbestos exposure has been associated with pulmonary fibrosis, mesothelioma, and malignancies, which may appear after a period of latency of 20-40 years. Mechanisms involved in the carcinogenic effects of asbestos are still not fully elucidated, although the oxidative stress theory suggests that phagocytic cells produce large amounts of reactive oxygen species, due to their inability to digest asbestos fiber...
February 7, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28161204/chemical-alternatives-assessment-of-different-flame-retardants-a-case-study-including-multi-walled-carbon-nanotubes-as-synergist
#6
REVIEW
Karin Aschberger, Ivana Campia, Laia Quiros Pesudo, Anita Radovnikovic, Vittorio Reina
Flame retardants (FRs) are a diverse group of chemicals used as additives in a wide range of products to inhibit, suppress, or delay ignition and to prevent the spread of fire. Halogenated FRs (HFRs) are widely used because of their low impact on other material properties and the low loading levels necessary to meet the required flame retardancy. Health and environmental hazards associated with some halogenated FRs have driven research for identifying safer alternatives. A variety of halogen-free FRs are available on the market, including organic (phosphorus and nitrogen based chemicals) and inorganic (metals) materials...
February 1, 2017: Environment International
https://www.readbyqxmd.com/read/28160536/impact-of-air-pollution-to-genome-of-newborns
#7
Radim J Šrám, Pavel Rössner, Andrea Rössnerová, Miroslav Dostál, Alena Milcová, Vlasta Švecová, Jana Pulkrabová, Jana Hajšlová, Miloš Velemínský
The Northern Moravia Region is the most polluted region in the Czech Republic by particulate matter (PM2.5) and carcinogenic polycyclic aromatic hydrocarbons (c-PAHs) as benzo[a]pyrene (B[a]P) by heavy industry and local heating. This specific situation was used to study the impact of air pollution on newborns in the exposed Karviná district and control district of České Budějovice. Biological material from newborns and mothers was collected in summer and winter seasons. This project is highly detailed, analyzing the concentrations of PAHs in ambient air and diet, in human breast milk, in the urine of mothers and newborns, using biomarkers of genetic damage as DNA adducts and gene expression analysis, biomarkers of oxidative stress as 8-oxodG adducts and lipid peroxidation (15-F2t-isoprostane immunoassay)...
December 2016: Central European Journal of Public Health
https://www.readbyqxmd.com/read/28133775/review-on-arsenic-induced-toxicity-in-male-reproductive-system-and-its-amelioration
#8
REVIEW
M Zubair, M Ahmad, Z I Qureshi
Arsenic is an environmental toxicant which causes mutagenic, teratogenic and carcinogenic defects. It is used as herbicide, fungicide and rodenticide and results in contamination of air, soil and water. Arsenic is also produced through burning of coal industries. The sludge of factories contaminates the fodder and drinking source of water of human and livestock. Arsenic binds thiol groups in tissue proteins and impairs the function of the proteins. This metal affects the mitochondrial enzymes and interrupts the production of energy...
January 30, 2017: Andrologia
https://www.readbyqxmd.com/read/28126280/multivariate-statistical-evaluation-of-dissolved-trace-elements-and-a-water-quality-assessment-in-the-middle-reaches-of-huaihe-river-anhui-china
#9
Jie Wang, Guijian Liu, Houqi Liu, Paul K S Lam
A total of 211 water samples were collected from 53 key sampling points from 5-10th July 2013 at four different depths (0m, 2m, 4m, 8m) and at different sites in the Huaihe River, Anhui, China. These points monitored for 18 parameters (water temperature, pH, TN, TP, TOC, Cu, Pb, Zn, Ni, Co, Cr, Cd, Mn, B, Fe, Al, Mg, and Ba). The spatial variability, contamination sources and health risk of trace elements as well as the river water quality were investigated. Our results were compared with national (CSEPA) and international (WHO, USEPA) drinking water guidelines, revealing that Zn, Cd and Pb were the dominant pollutants in the water body...
January 23, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28117355/a-10-year-observation-of-pm2-5-bound-nickel-in-xi-an-china-effects-of-source-control-on-its-trend-and-associated-health-risks
#10
Hongmei Xu, Steven Sai Hang Ho, Junji Cao, Benjamin Guinot, Haidong Kan, Zhenxing Shen, Kin Fai Ho, Suixin Liu, Zhuzi Zhao, Jianjun Li, Ningning Zhang, Chongshu Zhu, Qian Zhang, Rujin Huang
This study presents the first long term (10-year period, 2004-2013) datasets of PM2.5-bound nickel (Ni) concentration obtained from the daily sample in urban of Xi'an, Northwestern China. The Ni concentration trend, pollution sources, and the potential health risks associated to Ni were investigated. The Ni concentrations increased from 2004 to 2008, but then decreased due to coal consumption reduction, energy structure reconstruction, tighter emission rules and the improvement of the industrial and motor vehicle waste control techniques...
January 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28117123/simultaneous-determination-of-the-potential-carcinogen-1-4-dioxane-and-malodorous-alkyl-1-3-dioxanes-and-alkyl-1-3-dioxolanes-in-environmental-waters-by-solid-phase-extraction-and-gas-chromatography-tandem-mass-spectrometry
#11
Guillem Carrera, Lídia Vegué, Mª Rosa Boleda, Francesc Ventura
1,4-dioxane is a synthetic industrial solvent used in various industrial processes, and it is a probable human carcinogen whose presence in the aquatic environment is frequently reported. Alkyl-1,3-dioxanes and alkyl-1,3-dioxolanes are compounds that have been identified as causing several odor episodes in waters over the last years, with the result of downtime of drinking water treatment plants. According to published studies, some of these episodes may be caused either by resins synthesis processes, or by industrial residues added to dehydrated sludge in wastewater treatment plants (WWTPs) in order to increase biogas production efficiency...
March 3, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28110005/concentrations-sources-and-human-health-risk-of-inhalation-exposure-to-air-toxics-in-edmonton-canada
#12
Md Aynul Bari, Warren B Kindzierski
With concern about levels of air pollutants in recent years in the Capital Region of Alberta, an investigation of ambient concentrations, sources and potential human health risk of hazardous air pollutants (HAPs) or air toxics was undertaken in the City of Edmonton over a 5-year period (2009-2013). Mean concentrations of individual HAPs in ambient air including volatile organic compounds (VOCs), polycyclic aromatic hydrocarbons (PAHs) and trace metals ranged from 0.04 to 1.73 μg/m(3), 0.01-0.54 ng/m(3), and 0...
January 7, 2017: Chemosphere
https://www.readbyqxmd.com/read/28095286/the-relations-between-polycyclic-aromatic-hydrocarbons-exposure-and-1-ohp-levels-as-a-biomarker-of-the-exposure
#13
Zuzana Klöslová, Marek Drímal, Karol Balog, Kvetoslava Koppová, Jarmila Dubajová
BACKGROUND: Polycyclic aromatic hydrocarbons (PAHs) are the products of incomplete combustion or pyrolysis of various organic materials. Their ubiquity in the environment leads to measurable levels of exposure. However, the exposure varies strongly between different regions in Europe. Some PAHs with four or more rings are suspected to be human carcinogens. Therefore, the occupational and/or environmental exposure to PAHs may cause a significant health risk. The aim of investigation is to evaluate current levels of PAH exposure in defined groups of workers...
December 2016: Central European Journal of Public Health
https://www.readbyqxmd.com/read/28089782/hepatic-co-cultures-in-vitro-reveal-suitable-to-detect-nrf2-mediated-oxidative-stress-responses-on-the-bladder-carcinogen-o-anisidine
#14
Franziska Wewering, Florent Jouy, Sükran Caliskan, Stefan Kalkhof, Martin von Bergen, Andreas Luch, Sebastian Zellmer
The azo dye o-anisidine is known as an industrial and environmental pollutant. Metabolites of o-anisidine remain in the liver for >24h. However, the toxicological impact of o-anisidine on the liver and its individual cell types, e.g., hepatocytes and immune cells, is currently poorly understood. A novel co-culture system, composed of HepG2 or Huh-7 cells, and differentiated THP-1 cells was used to study the metabolic capacity towards o-anisidine, and compared to primary murine hepatocytes which express high enzyme activities...
January 12, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28078980/bioremediation-of-toxic-heavy-metals-a-patent-review
#15
Neelam Verma, Rajni Sharma
BACKGROUND: The global industrialization is fulfilling the demands of modern population at the cost of environmental exposure to various contaminants including heavy metals. These heavy metals affect water and soil quality. Moreover these enter into the food chain and exhibit their lethal effects on the human health even when present at slightly higher concentration than required for normal metabolism. To the worst of their part, the heavy metals may become carcinogenic. Henceforth, the efficient removal of heavy metals is the demand of sustainable development...
January 11, 2017: Recent Patents on Biotechnology
https://www.readbyqxmd.com/read/28078415/gc-ms-method-validation-and-levels-of-methyl-eugenol-in-a-diverse-range-of-tea-tree-melaleuca-alternifolia-oils
#16
Carolyn A Raymond, Noel W Davies, Tony Larkman
Tea tree oil distilled from Melaleuca alternifolia has widespread use in the cosmetic industry as an antimicrobial as well as for other functions in topical products. Concerns were first raised by the European Commission's Scientific Committee on Consumer Products in 2004 about the level of the potentially carcinogenic phenylpropanoid compound methyl eugenol in tea tree oil. Limits on oil content in different types of cosmetic products were set based on a reported upper level of 0.9% methyl eugenol in the oil...
March 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28068535/comparison-of-micropollutants-removal-performance-between-pre-ozonation-and-post-ozonation-using-a-pilot-study
#17
Kai Yang, Jianwei Yu, Qingyuan Guo, Chunmiao Wang, Min Yang, Yu Zhang, Ping Xia, Dong Zhang, Zhiyong Yu
Despite the strong oxidizing ability of ozone, pre-ozonation has seldom been employed for the purpose of micropollutant removal in drinking water utilities. In this paper, the possibility of using pre-ozonation instead of post-ozonation for the removal of micropollutants was explored because of the lower risk of forming carcinogenic bromate. A 1.0 m(3)/h pilot system was utilized to compare the efficacy of pre- and post-ozonation in the removal of bulk organic pollutants as well as micropollutants, including typical odor-causing compounds, pharmaceuticals, and typical pesticides, from one source water (Huangpu River) characterized by the occurrence of various micropollutants...
December 27, 2016: Water Research
https://www.readbyqxmd.com/read/28063708/infants-indoor-and-outdoor-residential-exposure-to-benzene-and-respiratory-health-in-a-spanish-cohort
#18
Amparo Ferrero, Ana Esplugues, Marisa Estarlich, Sabrina Llop, Amparo Cases, Enrique Mantilla, Ferran Ballester, Carmen Iñiguez
Benzene exposure represents a potential risk for children's health. Apart from being a known carcinogen for humans (group 1 according to IARC), there is scientific evidence suggesting a relationship between benzene exposure and respiratory problems in children. But results are still inconclusive and inconsistent. This study aims to assess the determinants of exposure to indoor and outdoor residential benzene levels and its relationship with respiratory health in infants. Participants were 1-year-old infants (N = 352) from the INMA cohort from Valencia (Spain)...
March 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28061690/organophosphorus-xenobiotic-toxicology
#19
John E Casida
Originally, organophosphorus (OP) toxicology consisted of acetylcholinesterase inhibition by insecticides and chemical threat agents acting as phosphorylating agents for serine in the catalytic triad, but this is no longer the case. Other serine hydrolases can be secondary OP targets, depending on the OP structure, and include neuropathy target esterase, lipases, and endocannabinoid hydrolases. The major OP herbicides are glyphosate and glufosinate, which act in plants but not animals to block aromatic amino acid and glutamine biosynthesis, respectively, with safety for crops conferred by their expression of herbicide-tolerant targets and detoxifying enzymes from bacteria...
January 6, 2017: Annual Review of Pharmacology and Toxicology
https://www.readbyqxmd.com/read/28043246/-occupational-hazard-risk-assessment-of-workers-exposed-to-benzene-in-a-petrochemical-enterprise-in-shanghai-china
#20
Y Lu, J S Huang, Y L Zhou, P Sun
Objective: To investigate the exposure to benzene, methylbenzene, and dimethylbenzene in workers in a petrochemical enterprise in Shanghai, China, and to conduct occupational hazard risk assessment. Methods: The environmental monitoring data on benzene series in the workplace of this petrochemical enterprise from 2010 to 2014 were collected, as well as workers' general status. The inhalation risk assessment model developed by United States Environmental Protection Agency (EPA) was used for risk assessment to determine the occupational hazard risk level of benzene, methylbenzene, and dimethylbenzene...
October 20, 2016: Chinese Journal of Industrial Hygiene and Occupational Diseases
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