Base de dados : MEDLINE
Pesquisa : D27.720.642.631 [Categoria DeCS]
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  1 / 1986 MEDLINE  
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[PMID]:29175401
[Au] Autor:Wan J; Du X; Wang R; Liu E; Jia J; Bai X; Hu X; Fan J
[Ad] Endereço:School of Chemical Engineering, Northwest University, Xi'an 710069, PR China.
[Ti] Título:Mesoporous nanoplate multi-directional assembled Bi WO for high efficient photocatalytic oxidation of NO.
[So] Source:Chemosphere;193:737-744, 2018 Feb.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Herein, a mesoporous nanoplate multi-directional assembled Bi WO architecture was successfully prepared and applied for the photocatalytic removal of NOx pollutants at low concentrations under visible light and simulated solar light irradiation. Bi WO -180-C synthesized at a hydrothermal temperature of 180 °C with calcination exhibited an excellent conversion efficiency in the photocatalytic oxidation of gaseous NO. The crystallinity, morphology, specific surface area, pore environment, light absorption, and separation of photogenerated electrons and holes were investigated by various techniques; the excellent photocatalytic performance of Bi WO -180-C was attributed to its special hierarchical mesoporous structure with an appropriate pore size and interconnected porous network, which imparted good gas permeability and fast mass transfer of reaction intermediates and final products of NO oxidation. Furthermore, hierarchical mesoporous Bi WO showed excellent photocatalytic durability and reusability.
[Mh] Termos MeSH primário: Bismuto/química
Catálise
Óxido Nítrico/química
Óxido Nítrico/efeitos da radiação
[Mh] Termos MeSH secundário: Gases
Luz
Oxidantes Fotoquímicos
Oxirredução
Porosidade
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Gases); 0 (Oxidants, Photochemical); 31C4KY9ESH (Nitric Oxide); U015TT5I8H (Bismuth)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171128
[St] Status:MEDLINE


  2 / 1986 MEDLINE  
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[PMID]:28931794
[Au] Autor:Shima M
[Ad] Endereço:Department of Public Health, Hyogo College of Medicine.
[Ti] Título:Health Effects of Air Pollution: A Historical Review and Present Status.
[So] Source:Nihon Eiseigaku Zasshi;72(3):159-165, 2017.
[Is] ISSN:1882-6482
[Cp] País de publicação:Japan
[La] Idioma:jpn
[Ab] Resumo:During the 1960s, the concentrations of air pollutants, particularly that of sulfur dioxide (SO ), were extremely high in many industrial cities in Japan, and the prevalence of bronchial asthma and chronic bronchitis increased among residents living in the cities. To evaluate the effects of air pollution on respiratory diseases, many epidemiological studies were conducted, and the findings played an important role in the regulatory control of air pollution. After 1970, the concentration of SO has decreased markedly, and its adverse health effects have been minimized. On the other hand, the increasing automobile traffic in Japan has caused considerable increases in concentrations of air pollutants, such as nitrogen oxides (NOx) and particulate matter (PM). The large-scale epidemiological studies conducted in Japan showed that traffic-related air pollution was associated with the development of asthma in school children and the persistence of asthmatic symptoms in preschool children. In recent years, however, the concentrations of NOx and PM have gradually decreased, since control measures based on the Automobile NOx/PM law were enforced in 2001. At present, the adverse health effects of airborne fine particulate matter (PM ) and photochemical oxidants have become a major concern. These air pollutants consist of not only emissions from primary sources but also secondary formations in air, and have spread worldwide. Both short- and long-term exposure to these air pollutants are reported to increase the risk of respiratory and cardiovascular diseases in the population. Therefore, global efforts are necessary to reduce the health risk of these air pollutants.
[Mh] Termos MeSH primário: Poluição do Ar/efeitos adversos
Poluição do Ar/história
Nível de Saúde
[Mh] Termos MeSH secundário: Poluentes Ocupacionais do Ar/análise
Poluição do Ar/análise
Asma/epidemiologia
Asma/etiologia
Criança
Poluentes Ambientais/análise
Feminino
História do Século XX
História do Século XXI
Seres Humanos
Japão/epidemiologia
Masculino
Oxidantes Fotoquímicos/análise
Material Particulado/análise
Centrais Elétricas
Doenças Respiratórias/epidemiologia
Doenças Respiratórias/etiologia
Emissões de Veículos/análise
[Pt] Tipo de publicação:HISTORICAL ARTICLE; JOURNAL ARTICLE; REVIEW
[Nm] Nome de substância:
0 (Air Pollutants, Occupational); 0 (Environmental Pollutants); 0 (Oxidants, Photochemical); 0 (Particulate Matter); 0 (Vehicle Emissions)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171024
[Lr] Data última revisão:
171024
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170922
[St] Status:MEDLINE
[do] DOI:10.1265/jjh.72.159


  3 / 1986 MEDLINE  
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[PMID]:28549673
[Au] Autor:Santana-Rodríguez N; Llontop P; Clavo B; Fiuza-Pérez MD; Zerecero K; Ayub A; Alshehri K; Yordi NA; Re L; Raad W; Fernández-Pérez L; García-Herrera R; Huang CJ; Bhora FY
[Ad] Endereço:Department of Thoracic Surgery, Mount Sinai Health System, New York, New York; Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS)-BioPharm Group, ULPGC, Spain. Electronic address: norbesanrod@gmail.com.
[Ti] Título:Ozone Therapy Protects Against Rejection in a Lung Transplantation Model: A New Treatment?
[So] Source:Ann Thorac Surg;104(2):458-464, 2017 Aug.
[Is] ISSN:1552-6259
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: No satisfactory treatment exists for chronic rejection (CR) after lung transplantation (LT). Our objective was to assess whether ozone (O ) treatment could ameliorate CR. METHODS: Male Sprague-Dawley inbred rats (n = 36) were randomly assigned into four groups: (1) control (n = 6), (2) sham (n = 6), (3) LT (n = 12), and (4) O -LT (n = 12). Animals underwent left LT. O was rectally administered daily for 2 weeks before LT (from 20 to 50 µg) and 3 times/wk (50 µg/dose) up to 3 months. CR; acute rejection; and Hspb27, Prdx, Epas1, Gpx3, Vegfa, Sftpa1, Sftpb, Plvap, Klf2, Cldn5, Thbd, Dsip, Fmo2, and Sepp1 mRNA gene expression were determined. RESULTS: Severe CR was observed in all animals of LT group, but none of the O -LT animals showed signs of CR, just a mild acute rejection was observed in 1 animal. A significant decrease of Hspb27, Prdx, Epas1, Gpx3, Vegfa, Sftpa1, Sftpb, Plvap, Klf2, Cldn5, Thbd, Dsip, and Fmo2 gene expression in the O -LT group was observed CONCLUSIONS: O therapy significantly delayed the onset of CR regulating the expression of genes involved in its pathogenesis. No known immunosuppressive therapy has been capable of achieving similar results. From a translational point of view, O therapy could become a new adjuvant treatment for CR in patients undergoing LT.
[Mh] Termos MeSH primário: Rejeição de Enxerto/prevenção & controle
Transplante de Pulmão/efeitos adversos
Ozônio/administração & dosagem
Terapia Respiratória/métodos
[Mh] Termos MeSH secundário: Administração por Inalação
Animais
Modelos Animais de Doenças
Relação Dose-Resposta a Droga
Masculino
Oxidantes Fotoquímicos/administração & dosagem
Ratos
Ratos Sprague-Dawley
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Oxidants, Photochemical); 66H7ZZK23N (Ozone)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170901
[Lr] Data última revisão:
170901
[Sb] Subgrupo de revista:AIM; IM
[Da] Data de entrada para processamento:170528
[St] Status:MEDLINE


  4 / 1986 MEDLINE  
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[PMID]:28498314
[Au] Autor:Colmenares JC; Kuna E
[Ad] Endereço:Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland. jcarloscolmenares@ichf.edu.pl.
[Ti] Título:Photoactive Hybrid Catalysts Based on Natural and Synthetic Polymers: A Comparative Overview.
[So] Source:Molecules;22(5), 2017 May 12.
[Is] ISSN:1420-3049
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:In the present review, we would like to draw the reader's attention to the polymer-based hybrid materials used in photocatalytic processes for efficient degradation of organic pollutants in water. These inorganic-organic materials exhibit unique physicochemical properties due to the synergistic effect originating from the combination of individual elements, i.e., photosensitive metal oxides and polymeric supports. The possibility of merging the structural elements of hybrid materials allows for improving photocatalytic performance through (1) an increase in the light-harvesting ability; (2) a reduction in charge carrier recombination; and (3) prolongation of the photoelectron lifetime. Additionally, the great majority of polymer materials exhibit a high level of resistance against ultraviolet irradiation and improved corrosion resistance. Taking into account that the chemical and environmental stability of the hybrid catalyst depends, to a great extent, on the functional support, we highlight benefits and drawbacks of natural and synthetic polymer-based photocatalytic materials and pay special attention to the fact that the accessibility of synthetic polymeric materials derived from petroleum may be impeded due to decreasing amounts of crude oil. Thus, it is necessary to look for cheap and easily available raw materials like natural polymers that come from, for instance, lignocellulosic wastes or crustacean residues to meet the demand of the "plastic" market.
[Mh] Termos MeSH primário: Oxidantes Fotoquímicos
Processos Fotoquímicos
Polímeros
[Mh] Termos MeSH secundário: Catálise
Luz
Polímeros/síntese química
Polímeros/química
Semicondutores
Raios Ultravioleta
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE; REVIEW
[Nm] Nome de substância:
0 (Oxidants, Photochemical); 0 (Polymers)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170627
[Lr] Data última revisão:
170627
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170513
[St] Status:MEDLINE


  5 / 1986 MEDLINE  
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[PMID]:28403346
[Au] Autor:Ozturk B; Kurtoglu T; Durmaz S; Kozaci LD; Abacigil F; Ertugrul B; Erel O
[Ad] Endereço:Assistant Professor, Department of Infectious Diseases and Clinical Microbiology, University of Adnan Menderes, School of Medicine, Aydin, Turkey. Conception and design of the study, acquisition of data, technical procedures, manuscript preparation and writing.
[Ti] Título:The effects of ozone on bacterial growth and thiol-disulphide homeostasis in vascular graft infection caused by MRSA in rats.
[So] Source:Acta Cir Bras;32(3):219-228, 2017 Mar.
[Is] ISSN:1678-2674
[Cp] País de publicação:Brazil
[La] Idioma:eng
[Ab] Resumo:Purpose:: To investigate the microbiological, inflammatory and oxidant effects of adjuvant ozone administration in experimental rat vascular graft infection model which has not been previously investigated. Methods:: Forty adult Wistar rats were divided into Sham, Control, Vancomycin, Ozone, Vancomycin+Ozone groups. Grafts were inoculated with Methicillin-resistant Staphylococcus aureus (MRSA) strain and implanted subcutaneously. Rats were treated intraperitoneally with ozone and /or intramuscularly with vancomycin for 10 days. Grafts were evaluated by quantitative bacterial cultures. Blood samples were harvested for determination of thiol-disulphide and cytokine profiles. Results:: There was no significant difference in bacterial counts between Control and Ozone Groups. In the Ozone Group median colony count was significantly higher than the Vancomycin and Vancomycin+Ozone Groups. Total thiol and disulphide levels increased and disulphide/native thiol and disulphide/total thiol ratios decreased in Ozone Group significantly. Albumin levels decreased significantly in Vancomycin and Vancomycin+Ozone Groups compared to the Sham Group. IL-1 and TNF-alpha levels significantly increased in infected rats. Decreased levels of VEGF due to infection reversed by ozone therapy in control and vancomycin groups. Conclusions:: We didn't observe any benefit of the agent on MRSA elimination in our model. Likewise, effects of ozone on thiol-disulphide homeostasis and inflammatory cytokines were contradictory.
[Mh] Termos MeSH primário: Dissulfetos/sangue
Staphylococcus aureus Resistente à Meticilina/efeitos dos fármacos
Oxidantes Fotoquímicos/farmacologia
Ozônio/farmacologia
Infecções Estafilocócicas/tratamento farmacológico
Enxerto Vascular
[Mh] Termos MeSH secundário: Animais
Antibacterianos/farmacologia
Contagem de Colônia Microbiana
Citocinas/sangue
Homeostase/efeitos dos fármacos
Masculino
Staphylococcus aureus Resistente à Meticilina/crescimento & desenvolvimento
Distribuição Aleatória
Ratos Wistar
Valores de Referência
Reprodutibilidade dos Testes
Albumina Sérica/análise
Fatores de Tempo
Transplantes/microbiologia
Resultado do Tratamento
Vancomicina/farmacologia
Doenças Vasculares/microbiologia
[Pt] Tipo de publicação:EVALUATION STUDIES; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Bacterial Agents); 0 (Cytokines); 0 (Disulfides); 0 (Oxidants, Photochemical); 0 (Serum Albumin); 66H7ZZK23N (Ozone); 6Q205EH1VU (Vancomycin)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170831
[Lr] Data última revisão:
170831
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170414
[St] Status:MEDLINE


  6 / 1986 MEDLINE  
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[PMID]:28319888
[Au] Autor:Zhao X; Gao T; Zhang J
[Ad] Endereço:State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China.
[Ti] Título:Heterogeneous reaction of peroxyacetyl nitrate (PAN) on soot.
[So] Source:Chemosphere;177:339-346, 2017 Jun.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The interaction between photochemical oxidants and aerosol particles has been examined in previous atmospheric pollution studies. The heterogeneous reaction can affect the concentration of gases and free radicals, as well as the morphology and properties of particles. In this report, the interaction between the photochemical oxidant peroxyacetyl nitrate (PAN) and soot particles was investigated using a flow tube system. We used real-time online monitoring equipment to track changes in PAN concentrations. Substances on the soot surface were detected using ion chromatography (IC), x-ray photoelectron spectroscopy (XPS), and other surface analysis methods. At 295 K, the upper and lower limits of the initial uptake coefficients were 1.28 × 10 and 9.16 × 10 , respectively. The heterogeneous reaction of PAN on soot was a first-order reaction to PAN under both dry and wet conditions. The products formed on soot included CH COO , HCOO , NO , and NO . With an increase in relative humidity, the production of all species decreased and the relative amounts changed.
[Mh] Termos MeSH primário: Aerossóis/análise
Oxidantes Fotoquímicos/análise
Ácido Peracético/análogos & derivados
Fuligem/análise
[Mh] Termos MeSH secundário: Cromatografia por Troca Iônica
Gases/análise
Íons
Nitrogênio/química
Ácido Peracético/análise
Espectrometria por Raios X
Temperatura Ambiente
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Aerosols); 0 (Gases); 0 (Ions); 0 (Oxidants, Photochemical); 0 (Soot); I6KPI2E1HD (Peracetic Acid); N762921K75 (Nitrogen); SQ8V0P4N89 (peroxyacetyl nitrate)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170531
[Lr] Data última revisão:
170531
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170321
[St] Status:MEDLINE


  7 / 1986 MEDLINE  
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[PMID]:28228618
[Au] Autor:Teke K; Ozkan TA; Cebeci OO; Yilmaz H; Keles ME; Ozkan L; Dillioglugil MO; Yildiz DK; Dillioglugil O
[Ad] Endereço:Department of Urology, Kocaeli University School of Medicine, Eski Istanbul Yolu 10. Km., 41380, Izmit/Kocaeli, Turkey.
[Ti] Título:Preventive effect of intravesical ozone supplementation on n-methyl-n-nitrosourea-induced non-muscle invasive bladder cancer in male rats.
[So] Source:Exp Anim;66(3):191-198, 2017 Aug 05.
[Is] ISSN:1881-7122
[Cp] País de publicação:Japan
[La] Idioma:eng
[Ab] Resumo:Although non-muscle invasive bladder cancer (NMIBC) is widely seen in men, most laboratory studies of new intravesical therapies to prevent NMIBC have been conducted on female animals. In addition, ozone (O ) has been shown to be a beneficial agent as an intravesical application in the treatment of various disorders. In the current study, we evaluated the immunohistopathological and oxidative-antioxidative effects of intravesical O treatment on n-methyl-n-nitrosourea (MNU)-induced NMIBC. Male Wistar-Albino rats (n=51) were divided into four groups: sham (n=6), O only (n=15), MNU only (n=15), and MNU+O (n=15). The MNU-only and MNU+O groups received MNU, and the O -only group received saline every other week for 10 weeks. The MNU-only group received 1 ml saline in place of O treatment, whereas the O -only and MNU+O groups were treated with 1 ml 25 µg/ml O between the 7th and 12th weeks. Rat bladders were collected in the 15th week for immunohistopathology and oxidant-antioxidant quantitation. Oxidant-antioxidant parameters were determined by ELISA. Although all surviving rats in the MNU-only group had preneoplastic (4/11, 36.4%) or neoplastic changes (7/11, 63.6%), a completely normal urothelium was observed in 2 rats (2/12, 16.7%) in the MNU+O -group (P=0.478). More high-grade lesions were observed in the MNU-only group (4/11, 36.4%) than in the MNU+O group (1/12, 8.3%) (P=0.120). All oxidant-antioxidant parameters significantly increased (P<0.05) in the O -only group compared with the sham group. However, only antioxidant superoxide dismutase was remarkably higher (178.9%, P=0.060) in the MNU+O group compared with the MNU-only group. This is the first methodologically and pathologically well-described male rat orthotopic bladder carcinogenesis model with intravesical MNU and administration of O in NMIBC.
[Mh] Termos MeSH primário: Metilnitrosoureia/efeitos adversos
Oxidantes Fotoquímicos/administração & dosagem
Ozônio/administração & dosagem
Neoplasias da Bexiga Urinária/metabolismo
Neoplasias da Bexiga Urinária/prevenção & controle
[Mh] Termos MeSH secundário: Administração Intravesical
Animais
Antioxidantes/metabolismo
Modelos Animais de Doenças
Feminino
Masculino
Ratos Wistar
Superóxido Dismutase/metabolismo
Neoplasias da Bexiga Urinária/induzido quimicamente
Neoplasias da Bexiga Urinária/patologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antioxidants); 0 (Oxidants, Photochemical); 66H7ZZK23N (Ozone); 684-93-5 (Methylnitrosourea); EC 1.15.1.1 (Superoxide Dismutase)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170928
[Lr] Data última revisão:
170928
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170224
[St] Status:MEDLINE
[do] DOI:10.1538/expanim.16-0093


  8 / 1986 MEDLINE  
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[PMID]:27942650
[Au] Autor:Arnold WA; Oueis Y; O'Connor M; Rinaman JE; Taggart MG; McCarthy RE; Foster KA; Latch DE
[Ad] Endereço:Department of Civil, Environmental, and Geo- Engineering, University of Minnesota, 500 Pillsbury Drive SE, Minneapolis, Minnesota 55455-0116, USA. arnol032@umn.edu.
[Ti] Título:QSARs for phenols and phenolates: oxidation potential as a predictor of reaction rate constants with photochemically produced oxidants.
[So] Source:Environ Sci Process Impacts;19(3):324-338, 2017 Mar 22.
[Is] ISSN:2050-7895
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Quantitative structure-activity relationships (QSARs) for prediction of the reaction rate constants of phenols and phenolates with three photochemically produced oxidants, singlet oxygen, carbonate radical, and triplet excited state sensitizers/organic matter, are developed. The predictive variable is the one-electron oxidation potential (E ), which is calculated for each species using density functional theory. The reaction rate constants are obtained from the literature, and for singlet oxygen, are augmented with new experimental data. Calculated E values have a mean unsigned error compared to literature values of 0.04-0.06 V. For singlet oxygen, a single linear QSAR that includes both phenols and phenolates is developed that predicts experimental rate constants, on average, to within a factor of three. Predictions for only 6 out of 87 compounds are off by more than a factor of 10. A more limited data set for carbonate radical reactions with phenols and phenolates also gives a single linear QSAR with prediction of rate constant being accurate to within a factor of three. The data for the reactions of phenols with triplet state sensitizers demonstrate that two sensitizers, 2-acetonaphthone and methylene blue, most closely predict the reactivity trend of triplet excited state organic matter with phenols. Using sensitizers with stronger reduction potentials could lead to overestimation of rate constants and thus underestimation of phenolic pollutant persistence.
[Mh] Termos MeSH primário: Oxidantes Fotoquímicos/química
Fenóis/química
Relação Quantitativa Estrutura-Atividade
[Mh] Termos MeSH secundário: Carbonatos
Cinética
Oxirredução
Oxigênio Singlete/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Carbonates); 0 (Oxidants, Photochemical); 0 (Phenols); 17778-80-2 (Singlet Oxygen)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170530
[Lr] Data última revisão:
170530
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161213
[St] Status:MEDLINE
[do] DOI:10.1039/c6em00580b


  9 / 1986 MEDLINE  
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[PMID]:27650304
[Au] Autor:Vinciguerra T; Bull E; Canty T; He H; Zalewsky E; Woodman M; Aburn G; Ehrman S; Dickerson RR
[Ad] Endereço:a Department of Chemical and Biomolecular Engineering , University of Maryland , College Park , MD , USA.
[Ti] Título:Expected ozone benefits of reducing nitrogen oxide (NO ) emissions from coal-fired electricity generating units in the eastern United States.
[So] Source:J Air Waste Manag Assoc;67(3):279-291, 2017 Mar.
[Is] ISSN:2162-2906
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:On hot summer days in the eastern United States, electricity demand rises, mainly because of increased use of air conditioning. Power plants must provide this additional energy, emitting additional pollutants when meteorological conditions are primed for poor air quality. To evaluate the impact of summertime NO emissions from coal-fired electricity generating units (EGUs) on surface ozone formation, we performed a series of sensitivity modeling forecast scenarios utilizing EPA 2018 version 6.0 emissions (2011 base year) and CMAQ v5.0.2. Coal-fired EGU NO emissions were adjusted to match the lowest NO rates observed during the ozone seasons (April 1-October 31) of 2005-2012 (Scenario A), where ozone decreased by 3-4 ppb in affected areas. When compared to the highest emissions rates during the same time period (Scenario B), ozone increased ∼4-7 ppb. NO emission rates adjusted to match the observed rates from 2011 (Scenario C) increased ozone by ∼4-5 ppb. Finally in Scenario D, the impact of additional NO reductions was determined by assuming installation of selective catalytic reduction (SCR) controls on all units lacking postcombustion controls; this decreased ozone by an additional 2-4 ppb relative to Scenario A. Following the announcement of a stricter 8-hour ozone standard, this analysis outlines a strategy that would help bring coastal areas in the mid-Atlantic region closer to attainment, and would also provide profound benefits for upwind states where most of the regional EGU NO originates, even if additional capital investments are not made (Scenario A). IMPLICATIONS: With the 8-hr maximum ozone National Ambient Air Quality Standard (NAAQS) decreasing from 75 to 70 ppb, modeling results indicate that use of postcombustion controls on coal-fired power plants in 2018 could help keep regions in attainment. By operating already existing nitrogen oxide (NO ) removal devices to their full potential, ozone could be significantly curtailed, achieving ozone reductions by up to 5 ppb in areas around the source of emission and immediately downwind. Ozone improvements are also significant (1-2 ppb) for areas affected by cross-state transport, especially Mid-Atlantic coast regions that had struggled to meet the 75 ppb standard.
[Mh] Termos MeSH primário: Poluentes Atmosféricos/análise
Poluição do Ar/prevenção & controle
Carvão Mineral
Óxidos de Nitrogênio/análise
Oxidantes Fotoquímicos/análise
Ozônio/análise
Centrais Elétricas
[Mh] Termos MeSH secundário: Poluição do Ar/estatística & dados numéricos
Eletricidade
Estados Unidos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Air Pollutants); 0 (Coal); 0 (Nitrogen Oxides); 0 (Oxidants, Photochemical); 66H7ZZK23N (Ozone)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170804
[Lr] Data última revisão:
170804
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160922
[St] Status:MEDLINE
[do] DOI:10.1080/10962247.2016.1230564


  10 / 1986 MEDLINE  
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[PMID]:26732112
[Au] Autor:Mete F; Tarhan H; Celik O; Akarken I; Vural K; Ekin RG; Aydemir I; Ilbey YO
[Ad] Endereço:Kanuni Sultan Suleyman Education and Research Hospital, Pediatric Clinic, 34150 Istanbul, Turkey.
[Ti] Título:Comparison of intraperitoneal and intratesticular ozone therapy for the treatment of testicular ischemia-reperfusion injury in rats.
[So] Source:Asian J Androl;19(1):43-46, 2017 Jan-Feb.
[Is] ISSN:1745-7262
[Cp] País de publicação:China
[La] Idioma:eng
[Ab] Resumo:We compare the efficacy of intratesticular ozone therapy with intraperitoneal ozone therapy in an experimental rat model. For this purpose, 24 rats were divided into four groups including sham-operated, torsion/detorsion, torsion/detorsion plus intraperitoneal ozone (O-IP), and torsion/detorsion plus intratesticular ozone (O-IT). The O-IP ozone group received a 4 mg kg-1 intraperitoneal injection of ozone, and the O-IT group received the same injection epididymally. At 4 h after detorsion, the rats were sacrificed and orchiectomy materials were assessed histopathologically. Spermatogenesis in the seminiferous tubules and damage to the Sertoli cells were histopathologically evaluated in the testes using the Johnsen scoring system. i-NOS and e-NOS activities in the testis tissue were also evaluated. Torsion-detorsion caused a decreased Johnsen score and increased apoptosis of spermatogonial and Sertoli cells. Ozone injection prevented increases in Johnsen score and i-NOS level. e-NOS level of the O-IP group was significantly lower than that of the O-IP group, and i-NOS level of the O-IT group was significantly lower than that of the O-IP group. Local ozone therapy is more effective than systemic ozone therapy at improving IRI-related testicular torsion. Our study is the first to show that the efficacy of intratesticular implementation of ozone therapy is higher than that of intraperitoneal ozone therapy.
[Mh] Termos MeSH primário: Oxidantes Fotoquímicos/farmacologia
Ozônio/farmacologia
Traumatismo por Reperfusão/patologia
Células de Sertoli/efeitos dos fármacos
Torção do Cordão Espermático/patologia
Espermatogônias/efeitos dos fármacos
Testículo/efeitos dos fármacos
[Mh] Termos MeSH secundário: Animais
Epididimo
Injeções
Injeções Intraperitoneais
Masculino
Óxido Nítrico Sintase Tipo II/metabolismo
Óxido Nítrico Sintase Tipo III/metabolismo
Ratos
Ratos Wistar
Traumatismo por Reperfusão/metabolismo
Torção do Cordão Espermático/metabolismo
Testículo/irrigação sanguínea
Testículo/metabolismo
Testículo/patologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Oxidants, Photochemical); 66H7ZZK23N (Ozone); EC 1.14.13.39 (Nitric Oxide Synthase Type II); EC 1.14.13.39 (Nitric Oxide Synthase Type III); EC 1.14.13.39 (Nos2 protein, rat); EC 1.14.13.39 (Nos3 protein, rat)
[Em] Mês de entrada:1702
[Cu] Atualização por classe:170817
[Lr] Data última revisão:
170817
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160107
[St] Status:MEDLINE
[do] DOI:10.4103/1008-682X.171570



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