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Environmental Research

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https://www.readbyqxmd.com/read/28938205/co-exposure-to-methylmercury-and-inorganic-arsenic-in-baby-rice-cereals-and-rice-containing-teething-biscuits
#1
Sarah E Rothenberg, Brian P Jackson, G Carly McCalla, Alexis Donohue, Alison M Emmons
BACKGROUND: Rice is an important dietary source for methylmercury (MeHg), a potent neurotoxin, and inorganic arsenic (As), a human carcinogen. Rice baby cereals are a dietary source of inorganic As; however, less is known concerning MeHg concentrations in rice baby cereals and rice teething biscuits. METHODS: MeHg concentrations were measured in 36 rice baby cereals, eight rice teething biscuits, and four baby cereals manufactured with oats/wheat (n = 48 total)...
September 19, 2017: Environmental Research
https://www.readbyqxmd.com/read/28938204/natural-outdoor-environments-and-mental-health-stress-as-a-possible-mechanism
#2
Margarita Triguero-Mas, David Donaire-Gonzalez, Edmund Seto, Antònia Valentín, David Martínez, Graham Smith, Gemma Hurst, Glòria Carrasco-Turigas, Daniel Masterson, Magdalena van den Berg, Albert Ambròs, Tania Martínez-Íñiguez, Audrius Dedele, Naomi Ellis, Tomas Grazulevicius, Martin Voorsmit, Marta Cirach, Judith Cirac-Claveras, Wim Swart, Eddy Clasquin, Annemarie Ruijsbroek, Jolanda Maas, Michael Jerret, Regina Gražulevičienė, Hanneke Kruize, Christopher J Gidlow, Mark J Nieuwenhuijsen
INTRODUCTION: Better mental health has been associated with exposure to natural outdoor environments (NOE). However, comprehensive studies including several indicators of exposure and outcomes, potential effect modifiers and mediators are scarce. OBJECTIVES: We used novel, objective measures to explore the relationships between exposure to NOE (i.e. residential availability and contact) and different indicators of mental health, and possible modifiers and mediators...
September 19, 2017: Environmental Research
https://www.readbyqxmd.com/read/28938191/blood-lead-and-preeclampsia-a-meta-analysis-and-review-of-implications
#3
Arthur E Poropat, Mark A S Laidlaw, Bruce Lanphear, Andrew Ball, Howard W Mielke
BACKGROUND: Multiple cross-sectional studies suggest that there is an association between blood lead and preeclampsia. OBJECTIVES: We performed a systematic review and meta-analysis to summarize information on the association between preeclampsia and lead poisoning. METHODS: Searches of Medline, Web of Science, Scopus, Pubmed, Science Direct and ProQuest (dissertations and theses) identified 2089 reports, 46 of which were downloaded after reviewing the abstracts, and 11 studies were evaluated as meeting the selection criteria...
September 19, 2017: Environmental Research
https://www.readbyqxmd.com/read/28938190/phytobeds-with-fimbristylis-dichotoma-and-ammannia-baccifera-for-treatment-of-real-textile-effluent-an-in-situ-treatment-anatomical-studies-and-toxicity-evaluation
#4
Suhas K Kadam, Vishal V Chandanshive, Niraj R Rane, Swapnil M Patil, Avinash R Gholave, Rahul V Khandare, Amrut R Bhosale, Byong-Hun Jeon, Sanjay P Govindwar
Fimbristylis dichotoma, Ammannia baccifera and their co-plantation consortium FA independently degraded Methyl Orange, simulated dye mixture and real textile effluent. Wild plants of F. dichotoma and A. baccifera with equal biomass showed 91% and 89% decolorization of Methyl Orange within 60h at a concentration of 50ppm, while 95% dye removal was achieved by consortium FA within 48h. Floating phyto-beds with co-plantation (F. dichotoma and A. baccifera) for the treatment of real textile effluent in a constructed wetland was observed to be more efficient and achieved 79%, 72%, 77%, 66% and 56% reductions in ADMI color value, COD, BOD, TDS and TSS of textile effluent, respectively...
September 19, 2017: Environmental Research
https://www.readbyqxmd.com/read/28926807/ambient-temperature-and-risk-of-cardiovascular-events-at-labor-and-delivery-a-case-crossover-study
#5
Sandie Ha, Kelly Nguyen, Danping Liu, Tuija Männistö, Carrie Nobles, Seth Sherman, Pauline Mendola
BACKGROUND: Extreme ambient temperatures are linked to cardiac events in the general population, but this relationship is unclear among pregnant women. We estimated the associations and attributable risk between ambient temperature and the risk of cardiovascular event at labor/delivery, and investigated whether these associations vary by maternal race/ethnicity. METHODS: We identified 680 women with singleton deliveries affected by cardiovascular events across 12 US sites (2002-2008)...
September 16, 2017: Environmental Research
https://www.readbyqxmd.com/read/28918287/steroid-hormones-and-persistent-organic-pollutants-in-plasma-from-north-eastern-atlantic-pilot-whales
#6
Katrin S Hoydal, Bjarne Styrishave, Tomasz M Ciesielski, Robert J Letcher, Maria Dam, Bjørn M Jenssen
Persistent organic pollutants (POPs) are known to have endocrine disruptive effects, interfering with endogenous steroid hormones. The present study examined nine steroid hormones and their relationships with the concentrations of selected POPs in pilot whales (Globicephala melas) from the Faroe Islands, NE Atlantic. The different steroids were detected in 15 to all of the 26 individuals. High concentrations of progesterone (83.3-211.7pmol/g) and pregnenolone (PRE; 4.68-5.69pmol/g) were found in three adult females indicating that they were pregnant or ovulating...
September 14, 2017: Environmental Research
https://www.readbyqxmd.com/read/28918010/corrigendum-to-extending-the-distributed-lag-model-framework-to-handle-chemical-mixtures-environ-res-156-2017-253-264
#7
Ghalib A Bello, Manish Arora, Christine Austin, Megan K Horton, Robert O Wright, Chris Gennings
No abstract text is available yet for this article.
September 13, 2017: Environmental Research
https://www.readbyqxmd.com/read/28917205/prenatal-ddt-exposure-and-child-adiposity-at-age-12-the-chamacos-study
#8
Marcella Warner, Morgan Ye, Kim Harley, Katherine Kogut, Asa Bradman, Brenda Eskenazi
OBJECTIVE: Using data from the Center for the Health Assessment of Mothers and Children of Salinas (CHAMACOS) birth cohort study, we assessed the association of in utero exposure to dichlorodiphenyltrichloroethane (DDT) and dichlorodiphenylethylene (DDE) with child adiposity at age 12. METHODS: We included 240 children with o,p'-DDT, p,p'-DDT, and p,p'-DDE concentrations measured in maternal serum collected during pregnancy (ng/g lipid) and complete 12-year follow-up data...
September 12, 2017: Environmental Research
https://www.readbyqxmd.com/read/28915507/ambient-fine-particulate-matters-induce-cell-death-and-inflammatory-response-by-influencing-mitochondria-function-in-human-corneal-epithelial-cells
#9
Eun-Jung Park, Jae-Byoung Chae, Jungmook Lyu, Cheolho Yoon, Sanghwa Kim, Changjoo Yeom, Younghun Kim, Jaerak Chang
Ambient fine particulate matter (AFP) is a main risk factor for the cornea as ultraviolet light. However, the mechanism of corneal damage following exposure to AFP has been poorly understood. In this study, we first confirmed that AFP can penetrate the cornea of mice, considering that two-dimensional cell culture systems are limited in reflecting the situation in vivo. Then, we investigated the toxic mechanism using human corneal epithelial (HCET) cells. At 24h after exposure, AFP located within the autophagosome-like vacuoles, and cell proliferation was clearly inhibited in all the tested concentration...
September 12, 2017: Environmental Research
https://www.readbyqxmd.com/read/28915506/maternal-diethylhexyl-phthalate-exposure-affects-adiposity-and-insulin-tolerance-in-offspring-in-a-pcna-dependent-manner
#10
Brian G Hunt, Yuan-Liang Wang, Min-Shan Chen, Shao-Chun Wang, Susan E Waltz
The ubiquitous plasticizer, diethylhexyl phthalate (DEHP), is a known endocrine disruptor. However, DEHP exposure effects are not well understood. Changes in industrial and agricultural practices have resulted in increased prevalence of DEHP exposure and has coincided with the heightened occurrence of metabolic syndrome and obesity. DEHP and its metabolites are detected in the umbilical cord blood of newborns; however, the prenatal and perinatal effects of DEHP exposure have not been intensively studied. Previously, we discovered that phosphorylation (p) of proliferating cell nuclear antigen (PCNA) at tyrosine 114 (Y114) is required for adipogenesis and diet-induced obesity in mice...
September 12, 2017: Environmental Research
https://www.readbyqxmd.com/read/28898803/cytotoxic-effects-of-commonly-used-nanomaterials-and-microplastics-on-cerebral-and-epithelial-human-cells
#11
Gabriella F Schirinzi, Ignacio Pérez-Pomeda, Josep Sanchís, Cesare Rossini, Marinella Farré, Damià Barceló
Plastic wastes are among the major inputs of detritus into aquatic ecosystems. Also, during recent years the increasing use of new materials such as nanomaterials (NMs) in industrial and household applications has contributed to the complexity of waste mixtures in aquatic systems. The current effects and the synergism and antagonisms of mixtures of microplastics (MPLs), NMs and organic compounds on the environment and in human health have, to date, not been well understood but instead they are a cause for general concern...
September 9, 2017: Environmental Research
https://www.readbyqxmd.com/read/28892785/parental-gamma-irradiation-induces-reprotoxic-effects-accompanied-by-genomic-instability-in-zebrafish-danio-rerio-embryos
#12
Selma Hurem, Tânia Gomes, Dag A Brede, Elisabeth Lindbo Hansen, Stephen Mutoloki, Cristian Fernandez, Carmel Mothersill, Brit Salbu, Yetneberk A Kassaye, Ann-Karin Olsen, Deborah Oughton, Peter Aleström, Jan L Lyche
Gamma radiation represents a potential health risk to aquatic and terrestrial biota, due to its ability to ionize atoms and molecules in living tissues. The effects of exposure to (60)Co gamma radiation in zebrafish (Danio rerio) were studied during two sensitive life stages: gametogenesis (F0: 53 and 8.7mGy/h for 27 days, total doses 31 and 5.2Gy) and embryogenesis (9.6mGy/h for 65h; total dose 0.62Gy). Progeny of F0 exposed to 53mGy/h showed 100% mortality occurring at the gastrulation stage corresponding to 8h post fertilization (hpf)...
September 8, 2017: Environmental Research
https://www.readbyqxmd.com/read/28889025/industrial-pollution-and-cancer-in-spain-an-important-public-health-issue
#13
Pablo Fernández-Navarro, Javier García-Pérez, Rebeca Ramis, Elena Boldo, Gonzalo López-Abente
Cancer can be caused by exposure to air pollution released by industrial facilities. The European Pollutant Release and Transfer Register (E-PRTR) has made it possible to study exposure to industrial pollution. This study seeks to describe the industrial emissions in the vicinity of Spanish towns and their temporal changes, and review our experience studying industrial pollution and cancer. Data on industrial pollutant sources (2007-2010) were obtained from the E-PRTR registries. Population exposure was estimated by the distance from towns to industrial facilities...
September 7, 2017: Environmental Research
https://www.readbyqxmd.com/read/28889024/the-toxicology-of-mercury-current-research-and-emerging-trends
#14
REVIEW
Geir Bjørklund, Maryam Dadar, Joachim Mutter, Jan Aaseth
Mercury (Hg) is a persistent bio-accumulative toxic metal with unique physicochemical properties of public health concern since their natural and anthropogenic diffusions still induce high risk to human and environmental health. The goal of this review was to analyze scientific literature evaluating the role of global concerns over Hg exposure due to human exposure to ingestion of contaminated seafood (methyl-Hg) as well as elemental Hg levels of dental amalgam fillings (metallic Hg), vaccines (ethyl-Hg) and contaminated water and air (Hg chloride)...
September 7, 2017: Environmental Research
https://www.readbyqxmd.com/read/28888198/effects-of-no2-exposure-on-daily-mortality-in-s%C3%A3-o-paulo-brazil
#15
Amine Farias Costa, Gerard Hoek, Bert Brunekreef, Antonio Carlos Monteiro Ponce de Leon
BACKGROUND: Recent reports have suggested that air pollution mixtures represented by nitrogen dioxide (NO2) may have effects on human health, which are independent from those of particulate matter mass. We evaluate the association between NO2 and daily mortality among elderly using one- and multipollutant models. METHODS: This study was a daily time series of non-accidental and cause-specific mortality among the elderly living in São Paulo, Brazil, between 2000 and 2011...
September 6, 2017: Environmental Research
https://www.readbyqxmd.com/read/28888197/does-a-lag-structure-of-temperature-confound-air-pollution-lag-response-relation-simulation-and-application-in-7-major-cities-korea-1998-2013
#16
Honghyok Kim, Michelle L Bell, Jong-Tae Lee
BACKGROUND: Temperature must be controlled when estimating the associations of short-term exposure to air pollution and mortality. Given that multi-country studies have implied temperature has lagged effects, we aim to explore confounding by temperature-lag-response and investigate PM10-lag-mortality relation in 7 cities, Korea. METHODS: In a simulation study, we compared the performance of different methods to control for: the same day temperature, a lagged temperature and distributed lags of temperature...
September 6, 2017: Environmental Research
https://www.readbyqxmd.com/read/28888196/the-impact-of-prenatal-exposure-to-air-pollution-on-childhood-wheezing-and-asthma-a-systematic-review
#17
REVIEW
Zhang Hehua, Chang Qing, Gao Shanyan, Wu Qijun, Zhao Yuhong
BACKGROUND AND OBJECTIVES: There has been no clear consensus about whether prenatal exposure to air pollution contributes to the development of wheezing and asthma in children. We conducted a systematic review to analyze the association between exposure to different pollutants during pregnancy and the development of childhood wheezing and asthma. METHODS: We systematically reviewed epidemiological studies published through June 6, 2017 available in the MEDLINE and Web of Science databases...
September 6, 2017: Environmental Research
https://www.readbyqxmd.com/read/28886502/nature-based-solutions-in-the-eu-innovating-with-nature-to-address-social-economic-and-environmental-challenges
#18
Nicolas Faivre, Marco Fritz, Tiago Freitas, Birgit de Boissezon, Sofie Vandewoestijne
Contemporary societies are facing a broad range of challenges, from pressures on human health and well-being to natural capital depletion, and the security of food, water and energy. These challenges are deeply intertwined with global processes, such as climate change and with local events such as natural disasters. The EU's research & innovation (R&I) policy is now seeking to address these challenges from a new perspective, with Nature-Based Solutions, and turn them into innovation opportunities that optimise the synergies between nature, society and the economy...
September 5, 2017: Environmental Research
https://www.readbyqxmd.com/read/28858754/longitudinal-association-between-air-pollution-exposure-at-school-and-cognitive-development-in-school-children-over-a-period-of-3-5-years
#19
Joan Forns, Payam Dadvand, Mikel Esnaola, Mar Alvarez-Pedrerol, Mònica López-Vicente, Raquel Garcia-Esteban, Marta Cirach, Xavier Basagaña, Mònica Guxens, Jordi Sunyer
INTRODUCTION: Recently, we showed that exposure to traffic-related air pollutants (TRAPs) at school was negatively associated with cognitive development, specifically working memory and inattentiveness, in primary schoolchildren during a course of 12 months. The persistence of such associations over longer periods remains as an open question. OBJECTIVE: To study the longitudinal association between TRAPs at school and cognitive development over a period of 3.5 years...
September 1, 2017: Environmental Research
https://www.readbyqxmd.com/read/28866382/robustness-of-intra-urban-land-use-regression-models-for-ultrafine-particles-and-black-carbon-based-on-mobile-monitoring
#20
Jules Kerckhoffs, Gerard Hoek, Jelle Vlaanderen, Erik van Nunen, Kyle Messier, Bert Brunekreef, John Gulliver, Roel Vermeulen
Land-use regression (LUR) models for ultrafine particles (UFP) and Black Carbon (BC) in urban areas have been developed using short-term stationary monitoring or mobile platforms in order to capture the high variability of these pollutants. However, little is known about the comparability of predictions of mobile and short-term stationary models and especially the validity of these models for assessing residential exposures and the robustness of model predictions developed in different campaigns. We used an electric car to collect mobile measurements (n = 5236 unique road segments) and short-term stationary measurements (3 × 30min, n = 240) of UFP and BC in three Dutch cities (Amsterdam, Utrecht, Maastricht) in 2014-2015...
August 31, 2017: Environmental Research
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