Base de dados : MEDLINE
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[PMID]:28381770
[Au] Autor:Charanyaa S; Belur PD; Regupathi I
[Ad] Endereço:Department of Chemical Engineering, National Institute of Technology Karnataka.
[Ti] Título:A New Strategy to Refine Crude Indian Sardine Oil.
[So] Source:J Oleo Sci;66(5):425-434, 2017 May 01.
[Is] ISSN:1347-3352
[Cp] País de publicação:Japan
[La] Idioma:eng
[Ab] Resumo:Current work aims to develop a refining process for removing phospholipids, free fatty acids (FFA), and metal ions without affecting n-3 polyunsaturated fatty acid (n-3 PUFA) esters present in the crude Indian sardine oil. Sardine oil was subjected to degumming with various acids (orthophosphoric acid, acetic acid, and lactic acid), conventional and membrane assisted deacidification using various solvents (methanol, ethanol, propanol and butanol) and bleaching with bleaching agents (GAC, activated earth and bentonite) and all the process parameters were further optimized. Degumming with 5%(w/w) ortho phosphoric acid, two stage solvent extraction with methanol at 1:1 (w/w) in each stage and bleaching with 3% (w/w) activated charcoal loading, at 80ºC for 10 minutes resulted in the reduction of phospholipid content to 5.66 ppm from 612.66 ppm, FFA to 0.56% from 5.64% with the complete removal of iron and mercury. Under these conditions, the obtained bleached oil showed an enhancement of n-3 PUFA from 16.39 % (11.19 Eicosapentaenoic acid (EPA) + 5.20 Docosahexaenoic acid (DHA)) to 17.91 % (11.81 EPA + 6.1 DHA). Replacing conventional solvent extraction with membrane deacidification using microporous, hydrophobic polytetrafluoroethylene membrane (PTFE), resulted in a lesser solvent residue (0.25% (w/w)) in the deacidified oil. In view of lack of reports on refining of n-3 PUFA rich marine oils without concomitant loss of n-3 PUFA, this report is significant.
[Mh] Termos MeSH primário: Ésteres/análise
Ácidos Graxos Ômega-3/análise
Óleos de Peixe/análise
Óleos de Peixe/química
[Mh] Termos MeSH secundário: Clareadores
Carvão Vegetal
Ácidos Graxos não Esterificados/isolamento & purificação
Íons
Compostos de Ferro/isolamento & purificação
Compostos de Mercúrio/isolamento & purificação
Fosfolipídeos/isolamento & purificação
Ácidos Fosfóricos
Politetrafluoretileno
Solventes
Temperatura Ambiente
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Bleaching Agents); 0 (Esters); 0 (Fatty Acids, Nonesterified); 0 (Fatty Acids, Omega-3); 0 (Fish Oils); 0 (Ions); 0 (Iron Compounds); 0 (Mercury Compounds); 0 (Phospholipids); 0 (Phosphoric Acids); 0 (Solvents); 16291-96-6 (Charcoal); 9002-84-0 (Polytetrafluoroethylene); E4GA8884NN (phosphoric acid)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170817
[Lr] Data última revisão:
170817
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170407
[St] Status:MEDLINE
[do] DOI:10.5650/jos.ess16164


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[PMID]:28288300
[Au] Autor:Sharma H; Sharma DS
[Ti] Título:Detection of Hydroxyl and Perhydroxyl Radical Generation from Bleaching Agents with Nuclear Magnetic Resonance Spectroscopy.
[So] Source:J Clin Pediatr Dent;41(2):126-134, 2017.
[Is] ISSN:1053-4628
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:OBJECTIVE: Children/adolescent's orodental structures are different in anatomy and physiology from that of adults, therefore require special attention for bleaching with oxidative materials. Hydroxyl radical (OH ) generation from bleaching agents has been considered directly related to both its clinical efficacy and hazardous effect on orodental structures. Nonetheless bleaching agents, indirectly releasing hydrogen peroxide (H O ), are considered safer yet clinically efficient. Apart from OH , perhydroxyl radicals (HO ) too, were detected in bleaching chemistry but not yet in dentistry. Therefore, the study aims to detect the OH and HO from bleaching agents with their relative integral value (RIV) using P nuclear magnetic resonance ( PNMR) spectroscope. STUDY DESIGN: Radicals were generated with UV light in 30% H O , 35% carbamide peroxide (CP), sodium perborate tetrahydrate (SPT) and; neutral and alkaline 30% H O . Radicals were spin-trapped with DIPPMPO in NMR tubes for each test agents as a function of time (0, 1, 2, 3min) at their original pH. Peaks were detected for OH and HO on NMR spectrograph. RIV were read and compared for individual radicals detected. RESULTS: Only OH were detected from acidic and neutral bleaching agent (30% acidic and neutral H O , 35%CP); both HO and OH from 30% alkaline H O ; while only HO from more alkaline SPT. RIV for OH was maximum at 1min irradiation of acidic 30%H O and 35%CP and minimum at 1min irradiation of neutral 30%H O . RIV for HO was maximum at 0min irradiation of alkaline 30%H O and minimum at 2min irradiation of SPT. CONCLUSION: The bleaching agents having pH- neutral and acidic were always associated with OH ; weak alkaline with both OH and HO ; and strong alkaline with HO only. It is recommended to check the pH of the bleaching agents and if found acidic, should be made alkaline to minimize oxidative damage to enamel itself and then to pulp/periodontal tissues. ABBREVIATIONS: H O : hydrogen peroxide CP: carbamide peroxide SP: sodium perborate SPT: sodium perborate tetrahydrate ROS: reactive oxygen species PNMR: P nuclear magnetic resonance spectroscope RIV: relative integral value OH : hydroxyl radical HO : perhydroxyl radical O : super oxide radical DIPPMPO: 5-(Diisopropoxyphosphoryl)-5-methyl-1-pyrroline-N-oxide DEPMPO: 5-diethoxyphosphoryl-5-methyl-1-pyrroline-n-oxide DMPO: 5,5-dimethyl-1-pyrroline-N-oxide D O: heavy water EDTA: ethylene diamine tetra acetic acid.
[Mh] Termos MeSH primário: Clareadores/química
Radical Hidroxila/análise
Peróxidos/análise
[Mh] Termos MeSH secundário: Seres Humanos
Espectroscopia de Ressonância Magnética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Bleaching Agents); 0 (Peroxides); 3170-83-0 (perhydroxyl radical); 3352-57-6 (Hydroxyl Radical)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170620
[Lr] Data última revisão:
170620
[Sb] Subgrupo de revista:D
[Da] Data de entrada para processamento:170314
[St] Status:MEDLINE
[do] DOI:10.17796/1053-4628-41.2.126


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[PMID]:27838028
[Au] Autor:Fang L; Zheng M; Liu G; Zhao Y; Liu W; Huang L; Guo L
[Ad] Endereço:State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing, 100085, China; Institute for Environmental Reference Materials of Ministry of Environmental Protection of the People's Republic of C
[Ti] Título:Unexpected promotion of PCDD/F formation by enzyme-aided Cl bleaching in non-wood pulp and paper mill.
[So] Source:Chemosphere;168:523-528, 2017 Feb.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Enzyme-aided Cl bleaching is widely considered as promising replacements for conventional Cl bleaching in wood pulp and paper mills. However, the effects of using enzyme-aided bleaching on the formation of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in the non-wood pulp and paper mills are unclear. A field study was performed to investigate PCDD/F formation when enzyme-aided Cl bleaching was used to replace conventional Cl bleaching in non-wood pulp and paper mills. Unexpectedly, the PCDD/F toxic equivalents (TEQs) in solid samples were higher when using enzyme-aided bleaching (0.49-5.4 pg TEQ/g) than that using conventional Cl bleaching (0.15-2.44 pg TEQ/g). Large amounts of octachlorodibenzo-p-dioxin were formed during the enzyme-aided bleaching process. This could have been because enzyme strongly promoted the release of organic molecules bound to lignin and thus accelerated the formation of octachlorodibenzo-p-dioxin through organic molecular precursors. Although enzyme-aided Cl bleaching was previously considered to be efficient for reducing PCDD/F releases and to be the best available technologies and best environmental practices for wood pulp and paper mills, the results obtained in this study suggested the necessity and urgency to evaluate the suitability of enzyme-aided Cl bleaching for non-wood pulp and paper mills that intensively practiced in developing countries.
[Mh] Termos MeSH primário: Clareadores/química
Dibenzofuranos Policlorados/análise
Recuperação e Remediação Ambiental/métodos
Dibenzodioxinas Policloradas/análise
Poluentes Químicos da Água/análise
[Mh] Termos MeSH secundário: China
Cloro/química
Monitoramento Ambiental
Resíduos Industriais/análise
Papel
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Bleaching Agents); 0 (Dibenzofurans, Polychlorinated); 0 (Industrial Waste); 0 (Polychlorinated Dibenzodioxins); 0 (Water Pollutants, Chemical); 4R7X1O2820 (Chlorine)
[Em] Mês de entrada:1701
[Cu] Atualização por classe:170127
[Lr] Data última revisão:
170127
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161114
[St] Status:MEDLINE


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[PMID]:27780405
[Au] Autor:Prasad Uday US; Bandyopadhyay TK; Goswami S; Bhunia B
[Ad] Endereço:a Department of Chemical Engineering , National Institute of Technology , Agartala , India.
[Ti] Título:Optimization of physical and morphological regime for improved cellulase free xylanase production by fed batch fermentation using Aspergillus niger (KP874102.1) and its application in bio-bleaching.
[So] Source:Bioengineered;8(2):137-146, 2017 Mar 04.
[Is] ISSN:2165-5987
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The physiological and morphological changes were extensively studied during fed batch fermentation using newly isolated Aspergillus niger (KP874102.1). Significantly higher xylanase production was possible through optimization of environmental stresses by fed batch process. The fed batch fermentation was carried out for improved xylanase production (2524 U) where initial xylan was kept 1.5 g/L in the production medium. However, 3 g/L of xylan with 50 mM K HPO having pH-7 was consecutively fed at 72 and 120 h of fermentation. K HPO showed significant role both the morphology of the microorganism and produces enzymes in fed batch fermentation. During feeding phase, the pH was found in the range of 6.5 to 7 which was used as marker for the fed batch process. The crude enzyme was used for the bio-bleaching of banana pulp.
[Mh] Termos MeSH primário: Aspergillus niger/enzimologia
Biotecnologia/métodos
Clareadores/metabolismo
Celulase/metabolismo
Endo-1,4-beta-Xilanases/metabolismo
[Mh] Termos MeSH secundário: Fermentação
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Bleaching Agents); EC 3.2.1.4 (Cellulase); EC 3.2.1.8 (Endo-1,4-beta Xylanases)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:171026
[Lr] Data última revisão:
171026
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161027
[St] Status:MEDLINE
[do] DOI:10.1080/21655979.2016.1218580


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[PMID]:27725516
[Au] Autor:Klaric Sever E; Simenc N; Rakic M; Skenderovic H; Sever I; Tarle Z
[Ad] Endereço:Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb.
[Ti] Título:Effects of bleaching agent on physical and aesthetic properties of restorative materials.
[So] Source:Dent Mater J;35(5):788-795, 2016.
[Is] ISSN:1881-1361
[Cp] País de publicação:Japan
[La] Idioma:eng
[Ab] Resumo:To investigate the effects of bleaching agent on microhardness, color and light transmission of different restorative materials. Specimens (n=20) of Tetric EvoCeram (TEC), Tetric EvoCeram Bulk Fill (TECBF) and Equia Fill (EQUIA) were treated with either 40% hydrogen peroxide Opalesence Boost or destilled water for 45 min. Specimens were stained in tea solution or stored in deionized water for one and two weeks. Color, microhardness and light transmission were monitored at the baseline, after the bleaching and after the tea immersion or storage in deionized water. After the bleaching a significant reduction in surface microhardness (p<0.001) was recorded for all materials. Clinically visible color change (ΔE>3) was observed after the bleaching and after treatment in tea solution, but only in EQUIA samples. The absorption coefficient was the largest for the samples stained in tea solution. Bleaching can affect the microhardness and color of fillings; therefore, they should be sometimes replaced.
[Mh] Termos MeSH primário: Clareadores
Peróxido de Hidrogênio
Clareamento Dental
[Mh] Termos MeSH secundário: Cor
Estética
Teste de Materiais
Peróxidos
Ureia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Bleaching Agents); 0 (Peroxides); 8W8T17847W (Urea); BBX060AN9V (Hydrogen Peroxide)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170823
[Lr] Data última revisão:
170823
[Sb] Subgrupo de revista:D
[Da] Data de entrada para processamento:161012
[St] Status:MEDLINE


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[PMID]:27723639
[Au] Autor:Andrighetto AR; de Leão Withers EH; Grando KG; Ambrosio AR; Shimizu RH; Melo AC
[Ad] Endereço:Department of Orthodontics, Latin American Institute of Dental Research and Education, Curitiba, Paraná, Brazil.
[Ti] Título:Assessing the effects of hydrogen peroxide bleaching agent on the shear bond strength of orthodontic brackets.
[So] Source:Indian J Dent Res;27(4):410-414, 2016 Jul-Aug.
[Is] ISSN:1998-3603
[Cp] País de publicação:India
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Tooth bleaching is, today, one of the most widespread cosmetic treatments in dental practice,  so it is important to determine whether it can interfere with orthodontic bonding or not. AIM: The aim of this study was to assess the in vitro effects of 35% hydrogen peroxide bleaching agent on the shear bond strength of orthodontic brackets. MATERIALS AND METHODS: Forty-five upper bicuspids were divided into three groups (n = 15). In the control Group (C), the brackets were bonded without previous bleaching treatment. Group 1 (G1) was treated with 35% hydrogen peroxide bleaching agent 24 h before bracket bonding. Group 2 was also bleached, and the brackets were bonded after 30 days. The shear bond strength of the brackets was measured using an EMIC machine, and the results were analyzed by ANOVA. RESULTS: There were no statistically significant differences between the three groups (P > 0.05), with Group C showing a mean bond strength of 9.72 ± 2.63 MPa, G1 of 8.09 ± 2.63 MPa, and G2 of 11.15 ± 4.42 MPa. CONCLUSION: It was possible to conclude that 35% hydrogen peroxide bleaching agent does not affect the shear strength of orthodontic brackets bonded 24 h and 30 days after bleaching.
[Mh] Termos MeSH primário: Clareadores/química
Colagem Dentária/métodos
Peróxido de Hidrogênio/química
Braquetes Ortodônticos
[Mh] Termos MeSH secundário: Dente Pré-Molar
Análise do Estresse Dentário
Seres Humanos
Técnicas In Vitro
Teste de Materiais
Resistência ao Cisalhamento
Clareamento Dental
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Bleaching Agents); BBX060AN9V (Hydrogen Peroxide)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171017
[Lr] Data última revisão:
171017
[Sb] Subgrupo de revista:D
[Da] Data de entrada para processamento:161011
[St] Status:MEDLINE
[do] DOI:10.4103/0970-9290.191891


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[PMID]:27406751
[Au] Autor:Ezraty B; Barras F
[Ad] Endereço:Aix-Marseille Université, CNRS, Laboratoire de Chimie Bactérienne, UMR 7283, Institut de Microbiologie de la Méditerranée, 31, chemin Joseph Aiguier, 13009 Marseille, France.
[Ti] Título:[How bacteria resist to bleach: a new way of repairing oxidized proteins].
[Ti] Título:L'eau de javel et les bactéries - Identification d'une nouvelle cible thérapeutique potentielle..
[So] Source:Med Sci (Paris);32(6-7):542-4, 2016 Jun-Jul.
[Is] ISSN:1958-5381
[Cp] País de publicação:France
[La] Idioma:fre
[Mh] Termos MeSH primário: Anti-Infecciosos/farmacologia
Bactérias/metabolismo
Farmacorresistência Bacteriana
Oxigênio/metabolismo
[Mh] Termos MeSH secundário: Infecções Bacterianas/tratamento farmacológico
Infecções Bacterianas/metabolismo
Proteínas de Bactérias/metabolismo
Clareadores/farmacologia
Seres Humanos
Terapia de Alvo Molecular/métodos
Oxirredução/efeitos dos fármacos
[Pt] Tipo de publicação:NEWS
[Nm] Nome de substância:
0 (Anti-Infective Agents); 0 (Bacterial Proteins); 0 (Bleaching Agents); S88TT14065 (Oxygen)
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170718
[Lr] Data última revisão:
170718
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160714
[St] Status:MEDLINE
[do] DOI:10.1051/medsci/20163206004


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[PMID]:27151682
[Au] Autor:Yu Z; Zheng H; Zhao X; Li S; Xu J; Song H
[Ad] Endereço:Industrial Enzymes National Engineering Laboratory, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China; Tianjin Key Laboratory for Industrial Biological Systems and Bioprocessing Engineering, Tianjin Institute of Industrial Biotechnology, Chinese Academ
[Ti] Título:High level extracellular production of a recombinant alkaline catalase in E. coli BL21 under ethanol stress and its application in hydrogen peroxide removal after cotton fabrics bleaching.
[So] Source:Bioresour Technol;214:303-10, 2016 Aug.
[Is] ISSN:1873-2976
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The effects of induction parameters, osmolytes and ethanol stress on the productivity of the recombinant alkaline catalase (KatA) in Escherichia coli BL21 (pET26b-KatA) were investigated. The yield of soluble KatA was significantly enhanced by 2% ethanol stress. And a certain amount of Triton X-100 supplementation could markedly improved extracellular ratio of KatA. A total soluble catalase activity of 78,762U/mL with the extracellular ratio of 92.5% was achieved by fed-batch fermentation in a 10L fermentor, which was the highest yield so far. The purified KatA showed high stability at 50°C and pH 6-10. Application of KatA for elimination of H2O2 after cotton fabrics bleaching led to less consumption of water, steam and electric power by 25%, 12% and 16.7% respectively without productivity and quality losing of cotton fabrics. Thus, the recombinant KatA is a promising candidate for industrial production and applications.
[Mh] Termos MeSH primário: Proteínas de Bactérias/metabolismo
Catalase/metabolismo
Escherichia coli/genética
Etanol/metabolismo
Peróxido de Hidrogênio/isolamento & purificação
Têxteis
[Mh] Termos MeSH secundário: Proteínas de Bactérias/genética
Clareadores/isolamento & purificação
Clareadores/metabolismo
Catalase/genética
Fibra de Algodão
Escherichia coli/efeitos dos fármacos
Escherichia coli/metabolismo
Fermentação
Peróxido de Hidrogênio/metabolismo
Octoxinol/farmacologia
Engenharia de Proteínas/métodos
Proteínas Recombinantes/genética
Proteínas Recombinantes/metabolismo
Estresse Fisiológico
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Bacterial Proteins); 0 (Bleaching Agents); 0 (Recombinant Proteins); 3K9958V90M (Ethanol); 9002-93-1 (Octoxynol); BBX060AN9V (Hydrogen Peroxide); EC 1.11.1.6 (Catalase); EC 1.11.1.6 (KATA protein, Bacillus subtilis)
[Em] Mês de entrada:1701
[Cu] Atualização por classe:170116
[Lr] Data última revisão:
170116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160507
[St] Status:MEDLINE


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[PMID]:26931536
[Au] Autor:Perng YS; Wang EI
[Ad] Endereço:Department of Environmental Engineering, Da Yeh University, Taiwan.
[Ti] Título:Treatment of Pulp Mill D-Stage Bleaching Effluent Using a Pilot-Scale Electrocoagulation System.
[So] Source:Water Environ Res;88(3):257-63, 2016 Mar.
[Is] ISSN:1061-4303
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:A pilot-scale study was conducted using electrocoagulation technology to treat chlorine dioxide bleaching-stage effluent of a local pulp mill, with the purpose of evaluating the treatment performance. The operating variables were the current density (0 ~ 133.3 A/m(2)) and hydraulic retention time (HRT, 6.5 ~ 16.25 minutes). Water quality indicators investigated were the conductivity, suspended solids (SS), chemical oxygen demand (COD), true color, and hardness. The results showed that electrocoagulation technology can be used to treat D-stage bleaching effluent for water reuse. Under the operating conditions studied, the removal of conductivity and COD always increased with increases in either the current density or HRT. The highest removals obtained at 133.3 A/m(2) and an HRT of 16.25 minutes for conductivity, SS, COD, true color, and hardness were respectively 44.2, 98.5, 75.0, 85.9, and 36.9% with aluminum electrodes. Iron electrodes were not applicable to the D-stage effluent due to formation of dark-colored ferric complexes.
[Mh] Termos MeSH primário: Clareadores
Técnicas Eletroquímicas
Eliminação de Resíduos Líquidos
[Mh] Termos MeSH secundário: Modelos Econômicos
Projetos Piloto
Águas Residuais/química
[Pt] Tipo de publicação:EVALUATION STUDIES; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Bleaching Agents); 0 (Waste Water)
[Em] Mês de entrada:1606
[Cu] Atualização por classe:160302
[Lr] Data última revisão:
160302
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160303
[St] Status:MEDLINE
[do] DOI:10.2175/106143013X13807328848937


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[PMID]:26920407
[Au] Autor:Ducoudray R; Mariani A; Corte H; Kraemer A; Munoz-Bongrand N; Sarfati E; Cattan P; Chirica M
[Ad] Endereço:Department of General, Endocrine and Digestive Surgery, Saint-Louis Hospital, APHP, Université Paris 7 Diderot, Paris, France.
[Ti] Título:The Damage Pattern to the Gastrointestinal Tract Depends on the Nature of the Ingested Caustic Agent.
[So] Source:World J Surg;40(7):1638-44, 2016 Jul.
[Is] ISSN:1432-2323
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: The mechanisms of damage to the gastrointestinal tract after caustic ingestion are conditioned by the nature of the ingested agent. Whether the nature of the ingested agent has a direct influence on patient outcomes is unknown. METHODS: From January 2013 to April 2015, 144 patients underwent emergency management for caustic injuries at the Saint Louis Hospital in Paris. There were 51 men (51 %) and the median age was 44 years [39, 48]. The ingested agents were soda-based strong alkali in 85 patients (59 %), strong acids in 36 patients (25 %), and bleach in 23 patients (16 %). Emergency and long-term outcomes were compared according to the nature of the ingested agent. RESULTS: Four patients died (3 %) and 40 patients (28 %) experienced complications. After bleach ingestion, emergency morbidity and mortality were nil, no patient required esophageal reconstruction, and functional outcome was successful in all patients. Acids were more likely to induce transmural gastric (31 vs. 13 %, p =0.042) and duodenal (9 vs. 0 %, p = 0.04) necrosis than strong alkalis, but rates of transmural esophageal necrosis were similar (14 vs. 12 %, p = 0.98). No significant differences were recorded between emergency mortality (9 vs. 1 %, p = 0.15), morbidity (33 vs. 33 %, p = 0.92), the need for esophageal reconstruction (25 vs. 20 %, p = 0.88), and functional success rates (76 vs. 84 %, p = 0.31) after acid and alkali ingestion, respectively. CONCLUSION: Bleach causes mild gastrointestinal injuries, while the ingestion of strong acids and alkalis may result in severe complications and death. Acids cause more severe damage to the stomach but similar damage to the esophagus when compared to alkalis.
[Mh] Termos MeSH primário: Queimaduras Químicas/etiologia
Queimaduras Químicas/patologia
Cáusticos/efeitos adversos
Duodeno/patologia
Estômago/patologia
[Mh] Termos MeSH secundário: Ácidos/efeitos adversos
Adulto
Álcalis/efeitos adversos
Clareadores/efeitos adversos
Queimaduras Químicas/mortalidade
Duodeno/lesões
Esôfago/lesões
Esôfago/cirurgia
Feminino
Seres Humanos
Masculino
Meia-Idade
Necrose
Estômago/lesões
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Acids); 0 (Alkalies); 0 (Bleaching Agents); 0 (Caustics)
[Em] Mês de entrada:1702
[Cu] Atualização por classe:170926
[Lr] Data última revisão:
170926
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160228
[St] Status:MEDLINE
[do] DOI:10.1007/s00268-016-3466-5



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