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https://www.readbyqxmd.com/read/29334712/-the-effect-of-ambient-pm-10-on-sperm-quality-in-wuhan
#1
X C Wang, X J Tian, B Ye, L Ma, Y Zhang, J Yang
Objective: To investigate the effect of exposure to particulate matter ≤10 μm in aerodynamic diameter (PM(10)) on sperm quality in different stages of sperm development. Methods: This cross-sectional study included 1 827 patients attending the reproductive medicine center in Renmin Hospital of Wuhan University during April 2013 to January 2015. Air pollution data from January 2013 to January 2015 was obtained from the database of Wuhan Municipal Environmental Protection Bureau. The generalized linear model was employed to assess the association between each exposure variables and sperm parameters for several exposure windows (0-9, 10-14, 15-69, 70-90, 0-90 days before sampling) ...
January 6, 2018: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/29334505/the-association-of-chronic-air-pollutants-with-coronary-artery-spasm-vasospastic-angina-and-endothelial-dysfunction
#2
Byoung Geol Choi, Jiwon Lee, Suhng Wook Kim, Min Woo Lee, Man Jong Baek, Yang Gi Ryu, Se Yeon Choi, Jae Kyeong Byun, Ahmed Mashaly, Yoonjee Park, Won Young Jang, Woohyeun Kim, Jah Yeon Choi, Eun Jin Park, Jin Oh Na, Cheol Ung Choi, Hong Euy Lim, Eung Ju Kim, Chang Gyu Park, Hong Seog Seo, Dong Joo Oh, Seung-Woon Rha
BACKGROUND: We evaluated the effect of chronic exposure to air pollutants (APs) on coronary endothelial function and significant coronary artery spasm (CAS) as assessed by intracoronary acetylcholine (ACH) provocation test. PATIENTS AND METHODS: A total of 6430 patients with typical or atypical chest pain who underwent intracoronary ACH provocation test were enrolled. We obtained data on APs from the Korean National Institute of Environmental Research (http://www...
January 12, 2018: Coronary Artery Disease
https://www.readbyqxmd.com/read/29332278/exposure-to-nanoscale-and-microscale-particulate-air-pollution-prior-to-mining-development-near-a-northern-indigenous-community-in-qu%C3%A3-bec-canada
#3
Avik J Ghoshdastidar, Zhenzhong Hu, Yevgen Nazarenko, Parisa A Ariya
This study serves as a baseline characterization of indoor and outdoor air quality in a remote northern indigenous community prior to the start of a major nearby mining operation, including measurements of nanoparticles, which has never been performed in this context before. We performed aerosol sample collection and real-time aerosol measurements at six different locations at the Cree First Nation of Waswanipi and the Montviel campsite, located 45 km west of the Cree First Nation of Waswanipi, in the south of the Nord-du-Québec region...
January 14, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29331897/a-framework-for-delineating-the-regional-boundaries-of-pm2-5-pollution-a-case-study-of-china
#4
Jianzheng Liu, Weifeng Li, Jiansheng Wu
Fine particulate matter (PM2.5) pollution has been a major issue in many countries. Considerable studies have demonstrated that PM2.5 pollution is a regional issue, but little research has been done to investigate the regional extent of PM2.5 pollution or to define areas in which PM2.5 pollutants interact. To allow for a better understanding of the regional nature and spatial patterns of PM2.5 pollution, This study proposes a novel framework for delineating regional boundaries of PM2.5 pollution. The framework consists of four steps, including cross-correlation analysis, time-series clustering, generation of Voronoi polygons, and polygon smoothing using polynomial approximation with exponential kernel method...
January 11, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29331891/global-association-between-ambient-air-pollution-and-blood-pressure-a-systematic-review-and-meta-analysis
#5
REVIEW
Bo-Yi Yang, Zhengmin Qian, Steven W Howard, Michael G Vaughn, Shu-Jun Fan, Kang-Kang Liu, Guang-Hui Dong
Although numerous studies have investigated the association of ambient air pollution with hypertension and blood pressure (BP), the results were inconsistent. We performed a comprehensive systematic review and meta-analysis of these studies. Seven international and Chinese databases were searched for studies examining the associations of particulate (diameter<2.5 μm (PM2.5), 2.5-10 μm (PM2.5-10) or >10 μm (PM10)) and gaseous (sulfur dioxide (SO2), nitrogen dioxide (NO2), nitrogen oxides (NOx), ozone (O3), carbon monoxide (CO)) air pollutants with hypertension or BP...
January 11, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29331671/the-molecular-characteristics-of-avian-influenza-viruses-h9n2-derived-from-air-samples-in-live-poultry-markets
#6
Yanheng Wu, Jinsi Lin, Shuhuan Yang, Ying Xie, Man Wang, Xueqin Chen, Yayang Zhu, Le Luo, Wuyang Shi
OBJECTIVE: To study the molecular characteristics of H9N2-subtype avian influenza viruses (AIVs) isolated from air samples collected in live poultry markets (LPMs) and explore their sequence identities with AIVs that caused human infection. METHODS: Weekly surveillance of H9N2-subtype AIVs in the air of LPMs was conducted from 2015 to 2016. H9-positive samples were isolated from chicken embryos. Whole genome sequences of the isolated AIVs were obtained through high-throughput sequencing...
January 10, 2018: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29330822/biochemical-changes-in-mussels-submitted-to-different-time-periods-of-air-exposure
#7
Madalena Andrade, Amadeu Soares, Etelvina Figueira, Rosa Freitas
Intertidal species face multiple stressors on a daily basis due to their particular habitat. The submergence at high tide in the aquatic environment and emergence at low tide to the aerial environment, associated with a wide variation of abiotic parameters, along with anthropogenic contamination are some of the daily stresses that these organisms are exposed to. With such a dynamic environment, organisms developed strategies that allow them to avoid or tolerate these stressors. Among these species, bivalves are some of the most hypoxia tolerant, being commonly used as a biomonitoring tool due to their capacity to accumulate pollutants from the environment and reflect the imposed toxic impacts...
January 13, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29330676/quantitative-outcomes-of-a-one-health-approach-to-study-global-health-challenges
#8
REVIEW
Laura C Falzon, Isabel Lechner, Ilias Chantziaras, Lucie Collineau, Aurélie Courcoul, Maria-Eleni Filippitzi, Riikka Laukkanen-Ninios, Carole Peroz, Jorge Pinto Ferreira, Merel Postma, Pia G Prestmo, Clare J Phythian, Eleonora Sarno, Gerty Vanantwerpen, Timothée Vergne, Douglas J C Grindlay, Marnie L Brennan
Having gained momentum in the last decade, the One Health initiative promotes a holistic approach to address complex global health issues. Before recommending its adoption to stakeholders, however, it is paramount to first compile quantitative evidence of the benefit of such an approach. The aim of this scoping review was to identify and summarize primary research that describes monetary and non-monetary outcomes following adoption of a One Health approach. An extensive literature search yielded a total of 42,167 references, of which 85 were included in the final analysis...
January 12, 2018: EcoHealth
https://www.readbyqxmd.com/read/29330495/large-unexplained-suite-of-chemically-reactive-compounds-present-in-ambient-air-due-to-biomass-fires
#9
V Kumar, B P Chandra, V Sinha
Biomass fires impact global atmospheric chemistry. The reactive compounds emitted and formed due to biomass fires drive ozone and organic aerosol formation, affecting both air quality and climate. Direct hydroxyl (OH) Reactivity measurements quantify total gaseous reactive pollutant loadings and comparison with measured compounds yields the fraction of unmeasured compounds. Here, we quantified the magnitude and composition of total OH reactivity in the north-west Indo-Gangetic Plain. More than 120% increase occurred in total OH reactivity (28 s-1 to 64 s-1) and from no missing OH reactivity in the normal summertime air, the missing OH reactivity fraction increased to ~40 % in the post-harvest summertime period influenced by large scale biomass fires highlighting presence of unmeasured compounds...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29330030/health-impact-assessment-of-cycling-network-expansions-in-european-cities
#10
Natalie Mueller, David Rojas-Rueda, Maëlle Salmon, David Martinez, Albert Ambros, Christian Brand, Audrey de Nazelle, Evi Dons, Mailin Gaupp-Berghausen, Regine Gerike, Thomas Götschi, Francesco Iacorossi, Luc Int Panis, Sonja Kahlmeier, Elisabeth Raser, Mark Nieuwenhuijsen
We conducted a health impact assessment (HIA) of cycling network expansions in seven European cities. We modeled the association between cycling network length and cycling mode share and estimated health impacts of the expansion of cycling networks. First, we performed a non-linear least square regression to assess the relationship between cycling network length and cycling mode share for 167 European cities. Second, we conducted a quantitative HIA for the seven cities of different scenarios (S) assessing how an expansion of the cycling network [i...
January 9, 2018: Preventive Medicine
https://www.readbyqxmd.com/read/29329571/environmental-exposures-and-fetal-growth-the-haifa-pregnancy-cohort-study
#11
Rachel Golan, Itai Kloog, Ronit Almog, Anat Gesser-Edelsburg, Maya Negev, Maya Jolles, Varda Shalev, Vered H Eisenberg, Gideon Koren, Wiessam Abu Ahmad, Hagai Levine
BACKGROUND: The developing fetus is susceptible to environmental insults. Studying the effects of environmental exposures on fetal growth is essential for understanding the causal pathway between prenatal exposures and pregnancy outcomes. Here we describe the Haifa Pregnancy Cohort Study (HPCS) and discuss challenges and opportunities in applying "big data" paradigm. METHODS: Maccabi Healthcare Services (MHS), is the second largest Israeli health maintenance organization (HMO) providing care services to two million beneficiaries...
January 12, 2018: BMC Public Health
https://www.readbyqxmd.com/read/29329563/pm2-5-induced-oxidative-stress-increases-intercellular-adhesion-molecule-1-expression-in-lung-epithelial-cells-through-the-il-6-akt-stat3-nf-%C3%AE%C2%BAb-dependent-pathway
#12
Chen-Wei Liu, Tzu-Lin Lee, Yu-Chen Chen, Chan-Jung Liang, Shu-Huei Wang, June-Horng Lue, Jaw-Shiun Tsai, Shih-Wei Lee, Shun-Hua Chen, Yi-Fan Yang, Tzu-Yi Chuang, Yuh-Lien Chen
BACKGROUND: Epidemiological studies have shown that ambient air pollution is closely associated with increased respiratory inflammation and decreased lung function. Particulate matters (PMs) are major components of air pollution that damages lung cells. However, the mechanisms remain to be elucidated. This study examines the effects of PMs on intercellular adhesion molecule-1 (ICAM-1) expression and the related mechanisms in vitro and in vivo. RESULT: The cytotoxicity, reactive oxygen species (ROS) generation, and monocyte adherence to A549 cells were more severely affected by treatment with O-PMs (organic solvent-extractable fraction of SRM1649b) than with W-PMs (water-soluble fraction of SRM1649b)...
January 12, 2018: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/29329427/ozone-induced-vascular-contractility-and-pulmonary-injury-are-differentially-impacted-by-diets-enriched-with-coconut-oil-fish-oil-and-olive-oil
#13
Samantha J Snow, Wan-Yun Cheng, Andres Henriquez, Myles Hodge, Virgina Bass, Gail M Nelson, Gleta Carswell, Judy E Richards, Mette C Schladweiler, Allen D Ledbetter, Brian Chorley, Kymberly M Gowdy, Haiyan Tong, Urmila P Kodavanti
Fish, olive, and coconut oil dietary supplementation have several cardioprotective benefits, but it is not established if they protect against air pollution-induced adverse effects. We hypothesized that these dietary supplements would attenuate ozone-induced systemic and pulmonary effects. Male Wistar Kyoto rats were fed either a normal diet, or a diet supplemented with fish, olive, or coconut oil for 8 weeks. Animals were then exposed to air or ozone (0.8 ppm), 4h/day for 2 days. Ozone exposure increased phenylephrine-induced aortic vasocontraction, which was completely abolished in rats fed the fish oil diet...
January 10, 2018: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29328878/environmental-influences-on-the-epigenome-exposure-associated-dna-methylation-in-human-populations
#14
Elizabeth M Martin, Rebecca C Fry
DNA methylation is the most well studied of the epigenetic regulators in relation to environmental exposures. To date, numerous studies have detailed the manner by which DNA methylation is influenced by the environment, resulting in altered global and gene-specific DNA methylation. These studies have focused on prenatal, early-life, and adult exposure scenarios. The present review summarizes currently available literature that demonstrates a relationship between DNA methylation and environmental exposures. It includes studies on aflatoxin B1, air pollution, arsenic, bisphenol A, cadmium, chromium, lead, mercury, polycyclic aromatic hydrocarbons, persistent organic pollutants, tobacco smoke, and nutritional factors...
January 12, 2018: Annual Review of Public Health
https://www.readbyqxmd.com/read/29325306/-a-retrospective-study-of-the-inducing-factors-and-clinical-characteristics-of-patients-hospitalized-for-asthma-exacerbation-in-china-in-2013-2014
#15
B Xing, J T Lin, H P Tang, L Yang, Y D Yuan, Y H Gu, P Chen, X J Liu, J Zhang, H G Liu, C Z Wang, W Zhou, D J Sun, Y Q Chen, Z C Chen, M Huang, Q C Lin, C P Hu, X H Yang, J M Huo, X W Ye, X Zhou, P Jiang, W Zhang, Y J Huang, L M Dai, R Y Liu, S X Cai, J Y Xu, J Y Zhou
Objective: To study the inducing factors and clinical characteristics of patients hospitalized for asthma exacerbation in China. Methods: Patients hospitalized for asthma exacerbation at 29 hospitals in China were retrospectively recruited during 2013-2014. Results: Clinical data of 3 240 asthmatic patients were collected and analyzed including 1 369(42.3%) males and 1 871(57.7%) females. The patients hospitalized for asthma exacerbation counted for 2.95% (6 375/215 955) of all patients hospitalized during the same period...
January 1, 2018: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/29324847/sabina-chinensis-and-liriodendron-chinense-improve-air-quality-in-beijing-china
#16
Yanan Wu, Wenmei Ma, Jiakai Liu, Lijuan Zhu, Ling Cong, Jiexiu Zhai, Yu Wang, Zhenming Zhang
Urban forests have been shown to be efficient for reducing air pollutants especially for particulate matters (PMs). This study aims to reveal the PM blocking capacity of two common artificial landscape species, Sabina chinensis and Liriodendron chinense and to investigate spatial-temporal heterogeneities by estimating the vegetation collection velocity of coarse (PM10) and fine particles (PM2.5) during different seasons and heights. PM concentration and meteorological data were collected on both leeward and windward sides of trees during the daytime in both summers and winters from 2013 to 2015...
2018: PloS One
https://www.readbyqxmd.com/read/29324717/residual-inequity-assessing-the-unintended-consequences-of-new-york-city-s-clean-heat-transition
#17
Daniel Carrión, W Victoria Lee, Diana Hernández
Energy policies and public health are intimately intertwined. In New York City, a series of policies, known as the Clean Heat Program (CHP), were designed to reduce air pollution by banning residual diesel fuel oils, #6 in 2015 and #4 by 2030. This measure is expected to yield environmental and public health benefits over time. While there is near-universal compliance with the #6 ban, a substantial number of buildings still use #4. In this paper, geographic analysis and qualitative interviews with stakeholders were used to interrogate the CHP's policy implementation in Northern Manhattan and the Bronx...
January 11, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29324378/impact-evaluation-of-environmental-factors-on-respiratory-function-of-asthma-patients-living-in-urban-territory
#18
Lyudmila V Veremchuk, Konstantinos Tsarouhas, Tatyana I Vitkina, Elena E Mineeva, Tatyana A Gvozdenko, Marina V Antonyuk, Valeri N Rakitskii, Karolina A Sidletskaya, Aristidis M Tsatsakis, Kirill S Golokhvast
BACKGROUND: Environmental pollution, local climatic conditions and their association with the prevalence and exacerbation of asthma are topics of intense current medical investigation. MATERIALS AND METHODS: Air pollution in the area of Vladivostock was estimated both by the index of emission volumes of "air gaseous components" (nitrogen oxide and nitrogen dioxide, formaldehyde, hydrogen sulfide, carbon monoxide) in urban atmosphere and by mass spectrometric analysis of precipitates in snow samples...
January 8, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29324377/ammonia-emissions-from-paddy-fields-are-underestimated-in-china
#19
Hongyuan Wang, Dan Zhang, Yitao Zhang, Limei Zhai, Bin Yin, Feng Zhou, Yucong Geng, Junting Pan, Jiafa Luo, Baojing Gu, Hongbin Liu
Excessive nitrogen (N) fertilizers are often used in China, and a large proportion of the N can be lost as ammonia (NH3). However, quantifying the NH3 emission from paddy fields is always affected by large uncertainties due to different measuring methods and other factors such as climate. In this study, using a standardized method, we measured the NH3 emissions in three typical annual rice cropping systems: single rice, double rice and rotation with other crops. The measurements were conducted for 2 years with a total of 3131 observations across China...
January 8, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29324239/how-do-glutathione-antioxidant-enzymes-and-total-antioxidant-status-respond-to-air-pollution-exposure
#20
Zeinab Farhat, Richard W Browne, Matthew R Bonner, Lili Tian, Furong Deng, Mya Swanson, Lina Mu
This study aims to investigate how antioxidant enzyme activity and overall antioxidant capacity respond to short-term changes in exposure to air pollution. 201 participants were recruited before- and followed up during- and after- the 2008 Beijing Olympics. Serum levels of antioxidant enzymes including glutathione S-transferases (GST), glutathione peroxidase (GPx), glutathione reductase (GR), and total antioxidant status (TAS) were measured. We used linear mixed-effects models to compare changes in antioxidant enzymes across the three periods after adjusting for potential confounding factors...
January 8, 2018: Environment International
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