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https://www.readbyqxmd.com/read/29352707/prenatal-exposure-to-lead-in-france-cord-blood-levels-and-associated-factors-results-from-the-perinatal-component-of-the-french-longitudinal-study-since-childhood-elfe
#1
Abdessattar Saoudi, Clémentine Dereumeaux, Sarah Goria, Bénédicte Berat, Serge Brunel, Marie Pecheux, Perrine de Crouy-Chanel, Abdelkrim Zeghnoun, Loïc Rambaud, Vérène Wagner, Alain le Tertre, Clémence Fillol, Stéphanie Vandentorren, Laurence Guldner
BACKGROUND: As a result of the ban on lead in gasoline on 2nd January 2000, the French population's exposure to lead has decreased in recent years. However, because of the acknowledged harmful cognitive effects of lead even at low levels, lead exposure remains a major public health issue. In France, few biomonitoring data are available for exposure to lead in pregnant women and newborn. The purpose of the perinatal component of the French human biomonitoring (HBM) program was to describe levels of various biomarkers of exposure to several environmental pollutants, including lead, among mother-baby pairs...
January 11, 2018: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/29352449/continuous-exposure-to-microplastics-does-not-cause-physiological-effects-in-the-cultivated-mussel-perna-perna
#2
Marina F M Santana, Fabiana T Moreira, Camilo D S Pereira, Denis M S Abessa, Alexander Turra
The environmental impact of microplastics is a challenging theme, especially under realistic experimental conditions. We investigated physiological responses to 0.1-1.0 μm PVC particles intake by the mussel Perna perna after a relative long-term exposure (90 days) at a less extreme concentration compared with previous studies (0.125 g/L). Microplastic intake was inferred by the presence of PVC in the feces of mussels, and physiological damages were assessed through ingestion rate, assimilation efficiency, growth rate, cellular and molecular biomarkers (lysosomal integrity, lipid peroxidation, and DNA damage), and condition index...
January 19, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/29352131/early-impoverished-environment-delays-the-maturation-of-cerebral-cortex
#3
Roberta Narducci, Laura Baroncelli, Gabriele Sansevero, Tatjana Begenisic, Concetta Prontera, Alessandro Sale, Maria Cristina Cenni, Nicoletta Berardi, Lamberto Maffei
The influence of exposure to impoverished environments on brain development is unexplored since most studies investigated how environmental impoverishment affects adult brain. To shed light on the impact of early impoverishment on developmental trajectories of the nervous system, we developed a protocol of environmental impoverishment in which dams and pups lived from birth in a condition of reduced sensory-motor stimulation. Focusing on visual system, we measured two indexes of functional development, that is visual acuity, assessed by using Visual Evoked Potentials (VEPs), and VEP latency...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29351906/edc-impact-molecular-effects-of-developmental-fm-550-exposure-in-wistar-rat-placenta-and-fetal-forebrain
#4
Kylie R Baldwin, Brian Horman, Allison L Phillips, Susan L McRitchie, Scott Watson, Jocelin Deese-Spruill, Dereje Jima, Susan Sumner, Heather Stapleton, Heather Patisaul
Firemaster 550 (FM 550) is a flame retardant (FR) mixture that has become one of the most commonly used FRs in foam-based furniture and baby products. Human exposure to this commercial mixture, comprised of brominated and organophosphate components, is widespread. We have repeatedly shown that developmental exposure can lead to sex-specific behavioral effects in rats. Accruing evidence of endocrine disruption and potential neurotoxicity have raised concerns regarding the neurodevelopmental effects of FM 550 exposure, but the specific mechanisms of action remains unclear...
January 19, 2018: Endocrine Connections
https://www.readbyqxmd.com/read/29351883/titanium-dioxide-nanoparticle-exposure-reduces-algal-biomass-and-alters-algal-assemblage-composition-in-wastewater-effluent-dominated-stream-mesocosms
#5
Moncie V Wright, Cole W Matson, Leanne S Baker, Benjamin T Castellon, Preston S Watkins, Ryan S King
A 5-week mesocosm experiment was conducted to investigate the toxicity of titanium dioxide nanoparticles (TiO2NPs) to periphytic algae in an environmentally-realistic scenario. We used outdoor experimental streams to simulate the characteristics of central Texas streams receiving large discharges of wastewater treatment plant effluent during prolonged periods of drought. The streams were continually dosed and maintained at two concentrations. The first represents an environmentally relevant concentration of 0...
January 16, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29351781/mindmap-establishing-an-integrated-database-infrastructure-for-research-in-ageing-mental-well-being-and-the-urban-environment
#6
Mariëlle A Beenackers, Dany Doiron, Isabel Fortier, J Mark Noordzij, Erica Reinhard, Emilie Courtin, Martin Bobak, Basile Chaix, Giuseppe Costa, Ulrike Dapp, Ana V Diez Roux, Martijn Huisman, Emily M Grundy, Steinar Krokstad, Pekka Martikainen, Parminder Raina, Mauricio Avendano, Frank J van Lenthe
BACKGROUND: Urbanization and ageing have important implications for public mental health and well-being. Cities pose major challenges for older citizens, but also offer opportunities to develop, test, and implement policies, services, infrastructure, and interventions that promote mental well-being. The MINDMAP project aims to identify the opportunities and challenges posed by urban environmental characteristics for the promotion and management of mental well-being and cognitive function of older individuals...
January 19, 2018: BMC Public Health
https://www.readbyqxmd.com/read/29351546/accessing-an-expanded-exposure-science-module-at-the-comparative-toxicogenomics-database
#7
Cynthia J Grondin, Allan Peter Davis, Thomas C Wiegers, Jolene A Wiegers, Carolyn J Mattingly
The Comparative Toxicogenomics Database (CTD; http://ctdbase.org) is a free resource that provides manually curated information on chemical, gene, phenotype, and disease relationships to advance understanding of the effect of environmental exposures on human health. Four core content areas are independently curated: chemical-gene interactions, chemical-disease and gene-disease associations, chemical-phenotype interactions, and environmental exposure data (e.g., effects of chemical stressors on humans). Since releasing exposure data in 2015, we have vastly increased our coverage of chemicals and disease/phenotype outcomes; greatly expanded access to exposure content; added search capability by stressors, cohorts, population demographics, and measured outcomes; and created user-specified displays of content...
January 18, 2018: Environmental Health Perspectives
https://www.readbyqxmd.com/read/29351483/prenatal-exposure-to-diesel-exhaust-pm2-5-causes-offspring-%C3%AE-cell-dysfunction-in-adulthood
#8
Minjie Chen, Shuai Liang, Xiaobo Qin, Li Zhang, Lianglin Qiu, Sufang Chen, Ziying Hu, Yanyi Xu, Wanjun Wang, Yuhao Zhang, Qi Cao, Zhekang Ying
BACKGROUND: Environmental stressors that encounter in early-life and cause abnormal fetal and/or neonatal development may increase susceptibility to non-communicable diseases such as diabetes. Maternal exposure to ambient fine particulate matter (PM2.5) is associated with various fetal abnormalities, suggesting that it may program offspring's susceptibility to diabetes. In the present study, we therefore examined whether maternal exposure to diesel exhaust PM2.5 (DEP), one of the major sources of ambient PM2...
December 26, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29351426/the-effects-of-heat-and-cold-on-health-with-special-reference-to-finnish-sauna-bathing
#9
Ilkka Heinonen, Jari A Laukkanen
Environmental stress such as extremely warm or cold temperature is often considered a challenge to human health and body homeostasis. However, human body can adapt relatively well to heat and cold environments and recent studies have also elucidated that particularly heat stress might be even highly beneficial for human health. Consequently, the aim of the present brief review is first to discuss general cardiovascular and other responses to acute heat stress, followed by a review of beneficial effects of Finnish sauna bathing on general and cardiovascular health and mortality as well as dementia and Alzheimer's disease risk...
December 20, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29351009/life-history-traits-evolved-jointly-with-climatic-niche-and-disturbance-regime-in-the-genus-leucadendron-proteaceae
#10
Jeanne Tonnabel, Frank M Schurr, Florian Boucher, Wilfried Thuiller, Julien Renaud, Emmanuel J P Douzery, Ophélie Ronce
Organisms have evolved a diversity of life-history strategies to cope with variation in their environment. Persistence as adults and/or seeds across recruitment events allows species to dampen the effects of environmental fluctuations. The evolution of life cycles with overlapping generations should thus permit the colonization of environments with uncertain recruitment. We tested this hypothesis in Leucadendron (Proteaceae), a genus with high functional diversity native to fire-prone habitats in the South African fynbos...
February 2018: American Naturalist
https://www.readbyqxmd.com/read/29350763/molecular-allergen-profiling-in-horses-by-microarray-reveals-fag-e-2-from-buckwheat-as-a-frequent-sensitizer
#11
L Einhorn, G Hofstetter, S Brandt, E K Hainisch, I Fukuda, K Kusano, A Scheynius, I Mittermann, Y Resch-Marat, S Vrtala, R Valenta, E Marti, C Rhyner, R Crameri, R Satoh, R Teshima, A Tanaka, H Sato, H Matsuda, I Pali-Schöll, E Jensen-Jarolim
BACKGROUND: Companion animals are also affected by IgE-mediated allergies, but the eliciting molecules are largely unknown. We aimed at refining an allergen microarray to explore sensitization in horses and compare it to the human IgE reactivity profiles. METHODS: Custom-designed allergen microarray was produced on the basis of the IimmunoCAP ISAC technology containing 131 allergens. Sera from 51 horses derived from Europe or Japan were tested for specific IgE reactivity...
January 19, 2018: Allergy
https://www.readbyqxmd.com/read/29350589/epidemiological-investigation-and-genotype-of-chlamydia-exposure-in-pigeons-in-three-provinces-in-northern-china
#12
Xin Wang, Nian-Zhang Zhang, Chun-Feng Ma, Xiao-Xuan Zhang, Quan Zhao, Hong-Bo Ni
Chlamydia is considered as one of the most widely prevalent zoonotic pathogens. It can spread from infected birds to human beings through direct or indirect contact with fecal shedding of Chlamydia. However, data concerning prevalence and genotypes of Chlamydia in pigeons are limited. In the present study, a total of 963 serum samples was collected from Jilin Province, Liaoning Province, and Inner Mongolia Autonomous Region (IMAR) in China between August 2015 and December 2016 and the seroprevalence for Chlamydia was analyzed by indirect hemagglutination assay test...
January 19, 2018: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/29350354/magnetic-geochemical-characterization-and-health-risk-assessment-of-road-dust-in-xuanwei-and-fuyuan-china
#13
Zhengying Tan, Senlin Lu, Hui Zhao, Xiao Kai, Peng Jiaxian, Myat Sandar Win, Shang Yu, Shinich Yonemochi, Qingyue Wang
As an accumulation of solid organic and inorganic pollutant particles on outdoor ground surfaces, road dust is an important carrier of heavy metal contaminants and can be a valuable medium for characterizing urban environmental quality. Because the dusts can be an important source of atmospheric particles and take impact on human health, the aim of this study described in detail the mineralogical characteristics, morphology, and heavy metal content of road dust from Xuanwei and Fuyuan, locations with high lung cancer incidence...
January 19, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/29350150/role-of-environmental-factors-in-shaping-spatial-distribution-of-salmonella-enterica-serovar-typhi-fiji
#14
Ruklanthi de Alwis, Conall Watson, Birgit Nikolay, John H Lowry, Nga Tran Vu Thieu, Tan Trinh Van, Dung Tran Thi Ngoc, Kitione Rawalai, Mere Taufa, Jerimaia Coriakula, Colleen L Lau, Eric J Nilles, W John Edmunds, Mike Kama, Stephen Baker, Jorge Cano
Fiji recently experienced a sharp increase in reported typhoid fever cases. To investigate geographic distribution and environmental risk factors associated with Salmonella enterica serovar Typhi infection, we conducted a cross-sectional cluster survey with associated serologic testing for Vi capsular antigen-specific antibodies (a marker for exposure to Salmonella Typhi in Fiji in 2013. Hotspots with high seroprevalence of Vi-specific antibodies were identified in northeastern mainland Fiji. Risk for Vi seropositivity increased with increased annual rainfall (odds ratio [OR] 1...
February 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29350061/the-adverse-effects-of-environmental-noise-exposure-on-oxidative-stress-and-cardiovascular-risk
#15
Thomas Münzel, Mette Sørensen, Frank P Schmidt, Erwin Schmidt, Sebastian Steven, Swenja Kröller-Schön, Andreas Daiber
Epidemiological studies have provided evidence that traffic noise exposure is linked to cardiovascular diseases such as arterial hypertension, myocardial infarction and stroke. Noise is a non-specific stressor that activates the autonomous nervous system and endocrine signaling. According to the noise reaction model introduced by Babisch and colleagues, chronic low levels of noise can cause so called non-auditory effects, such as disturbances of activity, sleep and communication, which can trigger a number of emotional responses, including annoyance and subsequent stress...
January 19, 2018: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/29349260/environmental-radiation-level-radiation-anxiety-and-psychological-distress-of-non-evacuee-residents-in-fukushima-five-years-after-the-great-east-japan-earthquake-multilevel-analyses
#16
Maiko Fukasawa, Norito Kawakami, Maki Umeda, Karin Miyamoto, Tsuyoshi Akiyama, Naoko Horikoshi, Seiji Yasumura, Hirooki Yabe, Evelyn J Bromet
The present study aimed to clarify the associations among radiation exposure or psychological exposure to the Fukushima nuclear power plant accident (i.e., fear/anxiety immediately after the accident), current radiation anxiety, and psychological distress among non-evacuee community residents in Fukushima five years after the Great East Japan Earthquake, which occurred in March 2011. A questionnaire survey was administered to a random sample of non-evacuee community residents from 49 municipalities of Fukushima prefecture from February to April 2016, and data from 1684 respondents (34...
December 2017: SSM—Population Health
https://www.readbyqxmd.com/read/29347979/altered-environmental-light-drives-retinal-change-in-the-atlantic-tarpon-megalops-atlanticus-over-timescales-relevant-to-marine-environmental-disturbance
#17
Lorian E Schweikert, Michael S Grace
BACKGROUND: For many fish species, retinal function changes between life history stages as part of an encoded developmental program. Retinal change is also known to exhibit plasticity because retinal form and function can be influenced by light exposure over the course of development. Aside from studies of gene expression, it remains largely unknown whether retinal plasticity can provide functional responses to short-term changes in environmental light quality. The aim of this study was to determine whether the structure and function of the fish retina can change in response to altered light intensity and spectrum-not over the course of a developmental regime, but over shorter time periods relevant to marine habitat disturbance...
January 18, 2018: BMC Ecology
https://www.readbyqxmd.com/read/29347936/comparative-analysis-of-copd-associated-with-tobacco-smoking-biomass-smoke-exposure-or-both
#18
Jordi Olloquequi, Sergio Jaime, Viviana Parra, Elizabeth Cornejo-Córdova, Gonzalo Valdivia, Àlvar Agustí, Rafael Silva O
BACKGROUND: Exposure to noxious gases and particles contained in both tobacco smoking (TS) and biomass smoke (BS) are well recognized environmental risk factors for chronic obstructive pulmonary disease (COPD). COPD is characterized by an abnormal inflammatory response, both in the pulmonary and systemic compartments. The differential effects of TS, BS or their combined exposure have not been well characterized yet. This study sought to compare the lung function characteristics and systemic inflammatory response in COPD patients exposed to TS, BS or their combination...
January 18, 2018: Respiratory Research
https://www.readbyqxmd.com/read/29346603/homologous-stress-adaptation-antibiotic-resistance-and-biofilm-forming-ability-of-salmonella-enterica-serovar-heidelberg-atcc8326-on-different-food-contact-surfaces-following-exposure-to-sublethal-chlorine-concentrations
#19
Tomi Obe, Rama Nannapaneni, Chander Shekhar Sharma, Aaron Kiess
Salmonella enterica serovar Heidelberg (American Type Culture Collection; ATCC 8326) was examined for the ability to adapt to the homologous stress of chlorine through exposure to increasing chlorine concentrations (25 ppm daily increments) in tryptic soy broth (TSB). The tested strain exhibited an acquired tolerance to chlorine in TSB with the tolerant cells growing in concentrations up to 400 ppm. In addition, the chlorine stressed cells displayed rugose morphology on tryptic soy agar (TSA) plates at 37°C...
January 13, 2018: Poultry Science
https://www.readbyqxmd.com/read/29346382/6-ohda-induced-dopaminergic-neurodegeneration-in-caenorhabditis-elegans-is-promoted-by-the-engulfment-pathway-and-inhibited-by-the-transthyretin-related-protein-ttr-33
#20
Sarah-Lena Offenburger, Xue Yan Ho, Theresa Tachie-Menson, Sean Coakley, Massimo A Hilliard, Anton Gartner
Oxidative stress is linked to many pathological conditions including the loss of dopaminergic neurons in Parkinson's disease. The vast majority of disease cases appear to be caused by a combination of genetic mutations and environmental factors. We screened for genes protecting Caenorhabditis elegans dopaminergic neurons from oxidative stress induced by the neurotoxin 6-hydroxydopamine (6-OHDA) and identified the transthyretin-related gene ttr-33. The only described C. elegans transthyretin-related protein to date, TTR-52, has been shown to mediate corpse engulfment as well as axon repair...
January 2018: PLoS Genetics
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