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https://www.readbyqxmd.com/read/27914144/outdoor-air-pollution-and-pterygium-in-korea
#1
Ki Woong Lee, Yoon Hyeong Choi, Sung Ha Hwang, Hae Jung Paik, Mee Kum Kim, Won Ryang Wee, Dong Hyun Kim
We investigated relationships between outdoor air pollution and pterygium in Korean adults. This study includes 23,276 adults in population-based cross-sectional data using the Korea National Health and Nutrition Examination Survey 2008-2011. Pterygium was assessed using slit lamp biomicroscopy. Air pollution data (humidity, particulate matter with aerodynamic diameter less than 10 μm [PM₁₀], ozone [O₃], nitrogen dioxide [NO₂], and sulfur dioxide levels [SO₂]) for 2 years preceding the ocular examinations were acquired...
January 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/27910849/hydroxyl-radical-induced-formation-of-highly-oxidized-organic-compounds
#2
Torsten Berndt, Stefanie Richters, Tuija Jokinen, Noora Hyttinen, Theo Kurtén, Rasmus V Otkjær, Henrik G Kjaergaard, Frank Stratmann, Hartmut Herrmann, Mikko Sipilä, Markku Kulmala, Mikael Ehn
Explaining the formation of secondary organic aerosol is an intriguing question in atmospheric sciences because of its importance for Earth's radiation budget and the associated effects on health and ecosystems. A breakthrough was recently achieved in the understanding of secondary organic aerosol formation from ozone reactions of biogenic emissions by the rapid formation of highly oxidized multifunctional organic compounds via autoxidation. However, the important daytime hydroxyl radical reactions have been considered to be less important in this process...
December 2, 2016: Nature Communications
https://www.readbyqxmd.com/read/27910088/the-efficacy-of-greater-occipital-nerve-blockade-in-chronic-migraine-a-placebo-controlled-study
#3
H L Gul, A O Ozon, O Karadas, G Koc, L E Inan
OBJECTIVE: GON blockade with local anesthetics is an effective treatment for a group of headaches, such as cervicogenic headache, cluster headache, occipital neuralgia, migraine. Our aim was to evaluate the efficacy of greater occipital nerve (GON) blockade in patients with chronic migraine (CM) by using a control group. MATERIALS AND METHODS: We included 44 CM patients and randomly divide the patients into two groups, as group A (bupivacaine) and group B (placebo) to our study...
December 2, 2016: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/27908452/kinetics-and-mechanisms-of-nitrate-and-ammonium-formation-during-ozonation-of-dissolved-organic-nitrogen
#4
Glen Andrew de Vera, Wolfgang Gernjak, Howard Weinberg, Maria José Farré, Jurg Keller, Urs von Gunten
Dissolved organic nitrogen (DON) is an emerging concern in oxidative water treatment because it exerts oxidant demand and may form nitrogenous oxidation/disinfection by-products. In this study, we investigated the reactions of ozone with DON with a special emphasis on the formation of nitrate (NO3(-)) and ammonium (NH4(+)). In batch ozonation experiments, the formation of NO3(-) and NH4(+) was investigated for natural organic matter standards, surface water, and wastewater effluent samples. A good correlation was found between NO3(-) formation and the O3 exposure (R(2) > 0...
October 8, 2016: Water Research
https://www.readbyqxmd.com/read/27907823/control-of-the-red-tide-dinoflagellate-cochlodinium-polykrikoides-by-ozone-in-seawater
#5
Minjung Shin, Hye-Jin Lee, Min Sik Kim, Noh-Back Park, Changha Lee
The inactivation of C. polykrikoides, a red tide dinoflagellate, by ozonation was investigated in seawater by monitoring numbers of viable and total cells. Parameters affecting the inactivation efficacy of C. polykrikoides such as the ozone dose, initial cell concentration, pH, and temperature were examined. The viable cell number rapidly decreased in the initial stage of the reaction (mostly in 1-2 min), whereas the decrease in total cell number was relatively slow and steady. Increasing ozone dose and decreasing initial cell concentration increased the inactivation efficacy of C...
November 22, 2016: Water Research
https://www.readbyqxmd.com/read/27907101/economic-and-environmental-impact-of-rice-blast-pathogen-magnaporthe-oryzae-alleviation-in-the-united-states
#6
Lawton Nalley, Francis Tsiboe, Alvaro Durand-Morat, Aaron Shew, Greg Thoma
Rice blast (Magnaporthe oryzae) is a key concern in combating global food insecurity given the disease is responsible for approximately 30% of rice production losses globally-the equivalent of feeding 60 million people. These losses increase the global rice price and reduce consumer welfare and food security. Rice is the staple crop for more than half the world's population so any reduction in rice blast would have substantial beneficial effects on consumer livelihoods. In 2012, researchers in the US began analyzing the feasibility of creating blast-resistant rice through cisgenic breeding...
2016: PloS One
https://www.readbyqxmd.com/read/27906558/erratum-nad-p-h-quinone-oxidoreductase-1-is-essential-for-ozone-induced-oxidative-stress-in-mice-and-humans
#7
(no author information available yet)
No abstract text is available yet for this article.
December 2016: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/27905700/use-of-ozone-depleting-substances-direct-final-rule
#8
(no author information available yet)
The Food and Drug Administration (FDA, the Agency, or we) is amending its regulation on uses of ozone-depleting substances (ODSs), including chlorofluorocarbons (CFCs), to remove the designation for certain products as "essential uses" under the Clean Air Act. Essential-use products are exempt from the ban by FDA on the use of CFCs and other ODS propellants in FDA-regulated products and from the ban by the Environmental Protection Agency (EPA) on the use of ODSs in pressurized dispensers. The products that will no longer constitute an essential use are: Sterile aerosol talc administered intrapleurally by thoracoscopy for human use and metered-dose atropine sulfate aerosol human drugs administered by oral inhalation...
October 26, 2016: Federal Register
https://www.readbyqxmd.com/read/27904610/effects-of-air-pollution-on-human-health-and-practical-measures-for-prevention-in-iran
#9
REVIEW
Adel Ghorani-Azam, Bamdad Riahi-Zanjani, Mahdi Balali-Mood
Air pollution is a major concern of new civilized world, which has a serious toxicological impact on human health and the environment. It has a number of different emission sources, but motor vehicles and industrial processes contribute the major part of air pollution. According to the World Health Organization, six major air pollutants include particle pollution, ground-level ozone, carbon monoxide, sulfur oxides, nitrogen oxides, and lead. Long and short term exposure to air suspended toxicants has a different toxicological impact on human including respiratory and cardiovascular diseases, neuropsychiatric complications, the eyes irritation, skin diseases, and long-term chronic diseases such as cancer...
2016: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/27899751/air-pollution-is-associated-with-ischemic-stroke-via-cardiogenic-embolism
#10
Jong-Won Chung, Oh Young Bang, Kangmo Ahn, Sang-Soon Park, Tai Hwan Park, Jae Guk Kim, Youngchai Ko, SooJoo Lee, Kyung Bok Lee, Jun Lee, Kyusik Kang, Jong-Moo Park, Yong-Jin Cho, Keun-Sik Hong, Hyun-Wook Nah, Dae-Hyun Kim, Jae-Kwan Cha, Wi-Sun Ryu, Dong-Eog Kim, Joon-Tae Kim, Jay Chol Choi, Mi-Sun Oh, Kyung-Ho Yu, Byung-Chul Lee, Ji Sung Lee, Juneyoung Lee, Hong-Kyun Park, Beom Joon Kim, Moon-Ku Han, Hee-Joon Bae
BACKGROUND AND PURPOSE: The aim of the study was to assessed the impact of short-term exposure to air pollution on ischemic stroke subtype, while focusing on stroke caused via cardioembolism. METHODS: From a nationwide, multicenter, prospective, stroke registry database, 13 535 patients with acute ischemic stroke hospitalized to 12 participating centers were enrolled in this study. Data on the hourly concentrations of particulate matter <10 μm, nitrogen dioxide (NO2), sulfur dioxide (SO2), ozone (O3), and carbon monoxide (CO) were collected from 181 nationwide air pollution surveillance stations...
November 29, 2016: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/27898328/fate-of-new-three-anti-influenza-drugs-and-one-prodrug-in-the-water-environment
#11
Takashi Azuma, Mao Ishida, Kanae Hisamatsu, Ayami Yunoki, Kana Otomo, Mari Kunitou, Mai Shimizu, Kaori Hosomaru, Shiori Mikata, Yoshiki Mino
We evaluated the environmental fate of new three anti-influenza drugs, favipiravir (FAV), peramivir (PER), and laninamivir (LAN), and an active prodrug of LAN, laninamivir octanoate (LANO), in comparison with four conventional drugs, oseltamivir (OS), oseltamivir carboxylate (OC), amantadine (AMN), and zanamivir (ZAN) by photodegradation, biodegradation, and sorption to river sediments. In addition, we conducted 9-month survey of urban rivers in the Yodo River basin from 2015 to 2016 (including the influenza season) to investigate the current status of occurrence of these drugs in the river environment...
November 26, 2016: Chemosphere
https://www.readbyqxmd.com/read/27895629/genome-wide-discovery-of-putative-srnas-in-paracoccus-denitrificans-expressed-under-nitrous-oxide-emitting-conditions
#12
Hannah Gaimster, Lisa Chalklen, Mark Alston, John T Munnoch, David J Richardson, Andrew J Gates, Gary Rowley
Nitrous oxide (N2O) is a stable, ozone depleting greenhouse gas. Emissions of N2O into the atmosphere continue to rise, primarily due to the use of nitrogen-containing fertilizers by soil denitrifying microbes. It is clear more effective mitigation strategies are required to reduce emissions. One way to help develop future mitigation strategies is to address the currently poor understanding of transcriptional regulation of the enzymes used to produce and consume N2O. With this ultimate aim in mind we performed RNA-seq on a model soil denitrifier, Paracoccus denitrificans, cultured anaerobically under high N2O and low N2O emitting conditions, and aerobically under zero N2O emitting conditions to identify small RNAs (sRNAs) with potential regulatory functions transcribed under these conditions...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27894109/ozone-therapy-and-its-use-in-medicine-further-comments
#13
Lamberto Re, Robert Rowen, Valter Travagli
No abstract text is available yet for this article.
November 29, 2016: Cardiology
https://www.readbyqxmd.com/read/27892410/short-term-no2-exposure-is-associated-with-long-chain-fatty-acids-in-prospective-cohorts-from-augsburg-germany-results-from-an-analysis-of-138-metabolites-and-three-exposures
#14
Cavin K Ward-Caviness, Susanne Breitner, Kathrin Wolf, Josef Cyrys, Gabi Kastenmüller, Rui Wang-Sattler, Alexandra Schneider, Annette Peters
BACKGROUND: Short-term exposure to air pollution is associated with morbidity and mortality. Metabolites are intermediaries in biochemical processes, and associations between air pollution and metabolites can yield unique mechanistic insights. METHODS: We used independent cross-sectional samples with targeted metabolomics (138 metabolites across five metabolite classes) from three cohort studies, each a part of the Cooperative Health Research in the Region of Augsburg (KORA)...
October 2016: International Journal of Epidemiology
https://www.readbyqxmd.com/read/27889354/influence-of-ozonolysis-time-during-sugarcane-pretreatment-effects-on-the-fiber-and-enzymatic-saccharification
#15
Olavo Micali Perrone, Jessika Souza Rossi, Marcia Maria de Souza Moretti, Christiane da Costa Carreira Nunes, Sidnei Emilio Bordignon, Eleni Gomes, Roberto Da-Silva, Mauricio Boscolo
Modifications in sugarcane bagasse (SCB) from ozonolysis (O) NaOH (B) and ultrasound (U) (OBU) treatment for cellulosic ethanol production by enzymatic hydrolysis, were evaluated when increasing the exposure time of SCB to ozone. The lignin, cellulose, and hemicellulose after treatment were quantified: lignin removal and a consequent increase in cellulose content were shown using an infrared spectroscopic technique (ATR-FTIR) and chemical characterization. X-ray diffraction analysis (XRD) proved that OBU treatment does not affect the crystalline cellulose portion and electron microscopy techniques established that the fiber region most affected by the OBU treatment was the secondary cell wall, where the greatest lignin content is located...
November 15, 2016: Bioresource Technology
https://www.readbyqxmd.com/read/27889144/exploring-the-microbiota-of-the-red-brown-defect-in-smear-ripened-cheese-by-454-pyrosequencing-and-its-prevention-using-different-cleaning-systems
#16
Raffaele Guzzon, Ilaria Carafa, Kieran Tuohy, Gonzalo Cervantes, Luca Vernetti, Andrea Barmaz, Roberto Larcher, Elena Franciosi
Red-brown pigmentation can occasionally form in smeared-ripened cheese such as Fontina during the ripening process. This reaction is due to over-development of the typical microbiota present on the rind. Previous studies have demonstrated the relationship between red-brown pigmentation and the traditional utilization of wooden shelves during cheese ripening. The first part of the paper focuses on the characterisation of yeast and bacterial microbiota: plate counts and 454-pyrosequencing were performed in spoiled (n = 6) and non-spoiled cheeses (n = 6) and on the wooden shelves used during ripening...
April 2017: Food Microbiology
https://www.readbyqxmd.com/read/27888746/maternal-exposure-to-ozone-and-pm2-5-and-the-prevalence-of-orofacial-clefts-in-four-u-s-states
#17
Ying Zhou, Suzanne M Gilboa, Michele L Herdt, Philip J Lupo, W Dana Flanders, Yang Liu, Mikyong Shin, Mark A Canfield, Russell S Kirby
BACKGROUND: While there is some evidence that maternal exposure to ambient air pollution is associated with orofacial clefts in offspring, the epidemiologic studies have been largely equivocal. We evaluated whether maternal exposure to elevated county-level ambient fine particulate matter with aerodynamic diameter ≤2.5µm (PM2.5) and ozone during early gestation was associated with a higher prevalence of orofacial clefts. METHODS: Birth data consisting of 4.7 million births from 2001 to 2007 were obtained from National Birth Defects Prevention Network for four states - Arizona, Florida, New York (excluding New York City), and Texas...
November 23, 2016: Environmental Research
https://www.readbyqxmd.com/read/27886375/modulation-of-chloride-currents-in-human-lung-epithelial-cells-exposed-to-exogenous-oxidative-stress
#18
Rita Canella, Marta Martini, Roberta Borriello, Carlotta Cavicchio, Ximena M Muresan, Mascia Benedusi, Franco Cervellati, Giuseppe Valacchi
Air pollution continues to be a major public health concern affecting 9 out of 10 individuals living in urban areas worldwide. Respiratory tract is the organ most exposed to gas pollution and ozone has been shown to be one of the most noxious pollutants to which living organisms are exposed. In the present work, we have investigated the effects of 0.1 ppm of ozone on chloride currents in human lung epithelial cells (A549 line) and whether this effect could be modulated by vitamin E pre-treatment. Whole-cell patch clamp technique was applied to not excitable cells in order to obtain information about chloride currents behavior, important for epithelial lung cells homeostasis...
November 25, 2016: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/27884467/elucidating-ozonation-mechanisms-of-organic-micropollutants-based-on-dft-calculations-taking-sulfamethoxazole-as-a-case
#19
Siyu Zhang, Gang Yu, Jingwen Chen, Qing Zhao, Xuejiao Zhang, Bin Wang, Jun Huang, Shubo Deng, Yujue Wang
Ozonation is widely used in wastewater treatment plants to remove diverse organic micropollutants. As molecular structures of organic micropollutants contain multiple ozone-preferred reaction sites, and moreover intermediate products can react with ozone again, ozonation mechanism is complex. A fast increasing number of organic micropollutants and a great demand of ecological risk assessments call for an in silico method to provide insights into the ozonation mechanism of organic micropollutants. Here, an in silico model was developed to unveil ozonation mechanisms of organic micropollutants...
November 21, 2016: Environmental Pollution
https://www.readbyqxmd.com/read/27883918/enhancement-of-bromate-formation-by-ph-depression-during-ozonation-of-bromide-containing-water-in-the-presence-of-hydroxylamine
#20
Jingxin Yang, Ji Li, Wenyi Dong, Jun Ma, Yi Yang, Jiayin Li, Zhichao Yang, Xiaolei Zhang, Jia Gu, Wanying Xie, Yan Cang
This work investigated the fate of bromate formation during ozonation in the presence of hydroxylamine (HA). Results indicated that pH depression, as a commonly feasible control strategy for bromate formation during ozonation, unexpectedly enhanced the bromate formation during ozonation in the presence of HA. A dramatically high level of bromate was observed at acidic pH in the ozone/HA process. The scavenging experiments demonstrated the essential role of OH produced in the reaction of ozone with HA in bromate formation...
November 14, 2016: Water Research
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