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Osarogiagbon R, Nishimura K, Porta RR, Montuenga L, Giroux D, Suda K, Araujo L, Detterbeck F, Gautschi O, Kerr K, Kneuertz P, Mack P, Matilla J, Nicholson A, Pass H, Presley C, Terra R, Wistuba I, Yang D, Yatabe Y, Travis W, Tsao M, Asamura H, Rusch V, Hirsch F, Carbone D. OA06.04 Constructing a Global Molecular Database for Thoracic Malignancies: The IASLC Molecular Subcommittee Lung Cancer Dataset. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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2
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Johnson M, Cho B, Luft A, Alatorre-Alexander J, Geater S, Laktionov K, Vasiliev A, Trukhin D, Kim S, Ursol G, Hussein M, Lim F, Yang C, Araujo L, Saito H, Reinmuth N, Shi X, Poole L, Peters S, Garon E, Mok T. PL02.01 Durvalumab ± Tremelimumab + Chemotherapy as First-line Treatment for mNSCLC: Results from the Phase 3 POSEIDON Study. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.029] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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3
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Jácome C, Pereira R, Almeida R, Amaral R, Correia MA, Mendes S, Vieira-Marques P, Ferreira JA, Lopes I, Gomes J, Vidal C, López Freire S, Méndez Brea P, Arrobas A, Valério M, Chaves Loureiro C, Santos LM, Couto M, Araujo L, Todo Bom A, Azevedo JP, Cardoso J, Emiliano M, Gerardo R, Lozoya C, Pinto PL, Castro Neves A, Pinto N, Palhinha A, Teixeira F, Ferreira-Magalhães M, Alves C, Coelho D, Santos N, Menezes F, Gomes R, Cidrais Rodrigues JC, Oliveira G, Carvalho J, Rodrigues Alves R, Moreira AS, Costa A, Abreu C, Silva R, Morête A, Falcão H, Marques ML, Câmara R, Cálix MJ, Bordalo D, Silva D, Vasconcelos MJ, Fernandes RM, Ferreira R, Freitas P, Lopes F, Almeida Fonseca J. Validation of App and Phone Versions of the Control of Allergic Rhinitis and Asthma Test (CARAT). J Investig Allergol Clin Immunol 2020; 31:270-273. [PMID: 32856596 DOI: 10.18176/jiaci.0640] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- C Jácome
- Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Porto, Portugal.,Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS), Faculty of Medicine, University of Porto, Porto, Portugal
| | - R Pereira
- Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS), Faculty of Medicine, University of Porto, Porto, Portugal.,Allergy Unit, Instituto and Hospital CUF, Porto, Portugal
| | - R Almeida
- Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Porto, Portugal.,Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS), Faculty of Medicine, University of Porto, Porto, Portugal
| | - R Amaral
- Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Porto, Portugal.,Dept. of Cardiovascular and Respiratory Sciences, Porto Health School, Polytechnic Institute of Porto, Porto, Portugal
| | - M A Correia
- Allergy Unit, Instituto and Hospital CUF, Porto, Portugal
| | - S Mendes
- Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Porto, Portugal
| | - P Vieira-Marques
- Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Porto, Portugal
| | - J A Ferreira
- Serviço de Imunoalergologia, Centro Hospitalar Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - I Lopes
- Serviço de Imunoalergologia, Centro Hospitalar Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - J Gomes
- Serviço de Imunoalergologia, Centro Hospitalar Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - C Vidal
- Servicio de Alergia, Complejo Hospitalario Universitario de Santiago, Santiago De Compostela, Spain
| | - S López Freire
- Servicio de Alergia, Complejo Hospitalario Universitario de Santiago, Santiago De Compostela, Spain
| | - P Méndez Brea
- Servicio de Alergia, Complejo Hospitalario Universitario de Santiago, Santiago De Compostela, Spain
| | - A Arrobas
- Serviço de Pneumologia, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - M Valério
- Serviço de Pneumologia, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - C Chaves Loureiro
- Serviço de Pneumologia, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - L M Santos
- Serviço de Pneumologia, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - M Couto
- Allergy Unit, Instituto and Hospital CUF, Porto, Portugal
| | - L Araujo
- Allergy Unit, Instituto and Hospital CUF, Porto, Portugal
| | - A Todo Bom
- Serviço de Imunoalergologia, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - J P Azevedo
- Imunoalergologia, Centro Hospitalar de Leiria, Leiria, Portugal
| | - J Cardoso
- Serviço de Pneumologia, Hospital Santa Marta, Centro Hospitalar Universitário de Lisboa Central, Lisboa, Portugal
| | - M Emiliano
- Serviço de Pneumologia, Hospital Santa Marta, Centro Hospitalar Universitário de Lisboa Central, Lisboa, Portugal
| | - R Gerardo
- Serviço de Pneumologia, Hospital Santa Marta, Centro Hospitalar Universitário de Lisboa Central, Lisboa, Portugal
| | - C Lozoya
- Serviço de Imunoalergologia, Hospital Amato Lusitano, Unidade Local de Saúde de Castelo Branco, Castelo Branco, Portugal
| | - P L Pinto
- Serviço de Imunoalergologia, Hospital de Dona Estefânia, Centro Hospitalar Universitário de Lisboa Central, Lisboa, Portugal
| | - A Castro Neves
- Serviço de Imunoalergologia, Hospital de Dona Estefânia, Centro Hospitalar Universitário de Lisboa Central, Lisboa, Portugal
| | - N Pinto
- Serviço de Imunoalergologia, Hospital de Dona Estefânia, Centro Hospitalar Universitário de Lisboa Central, Lisboa, Portugal
| | - A Palhinha
- Serviço de Imunoalergologia, Hospital de Dona Estefânia, Centro Hospitalar Universitário de Lisboa Central, Lisboa, Portugal
| | - F Teixeira
- Serviço de Pediatria, Centro Materno Infantil do Norte, Centro Hospitalar Universitário do Porto, Porto, Portugal
| | - M Ferreira-Magalhães
- Serviço de Pediatria, Centro Materno Infantil do Norte, Centro Hospitalar Universitário do Porto, Porto, Portugal
| | - C Alves
- Serviço de Pneumologia, Hospital Nossa Senhora do Rosário, Centro Hospitalar Barreiro Montijo, Barreiro, Portugal
| | - D Coelho
- Serviço de Pneumologia, Hospital Nossa Senhora do Rosário, Centro Hospitalar Barreiro Montijo, Barreiro, Portugal
| | - N Santos
- Serviço de Imunoalergologia, Centro Hospitalar Universitário do Algarve, Portimão, Portugal
| | - F Menezes
- Serviço de Pneumologia, Hospital Garcia de Orta, Almada, Portugal
| | - R Gomes
- Serviço de Pneumologia, Hospital Garcia de Orta, Almada, Portugal
| | - J C Cidrais Rodrigues
- Serviço de Pediatria, Hospital Pedro Hispano, Unidade Local de Saúde de Matosinhos, Matosinhos, Portugal
| | - G Oliveira
- Serviço de Pediatria, Hospital Pedro Hispano, Unidade Local de Saúde de Matosinhos, Matosinhos, Portugal
| | - J Carvalho
- Serviço de Pediatria, Hospital Pedro Hispano, Unidade Local de Saúde de Matosinhos, Matosinhos, Portugal
| | - R Rodrigues Alves
- Serviço de Imunoalergologia, Hospital do Divino Espirito Santo, Ponta Delgada, Portugal
| | - A S Moreira
- Serviço de Imunoalergologia, Hospital do Divino Espirito Santo, Ponta Delgada, Portugal
| | - A Costa
- Serviço de Pediatria, Hospital da Senhora da Oliveira, Guimarães, Portugal
| | - C Abreu
- Serviço de Imunoalergologia, Hospital São Pedro de Vila Real, Centro Hospitalar De Trás-Os-Montes E Alto Douro, Vila Real, Portugal
| | - R Silva
- Serviço de Imunoalergologia, Hospital São Pedro de Vila Real, Centro Hospitalar De Trás-Os-Montes E Alto Douro, Vila Real, Portugal
| | - A Morête
- Serviço de Imunoalergologia, Hospital Infante D. Pedro, Centro Hospitalar Baixo Vouga, Aveiro, Portugal
| | - H Falcão
- Serviço de Imunoalergologia, Centro Hospitalar Universitário do Porto, Porto, Portugal
| | - M L Marques
- Serviço de Imunoalergologia, Centro Hospitalar Universitário do Porto, Porto, Portugal
| | - R Câmara
- Serviço de Imunoalergologia, Serviço de Saúde da Região Autónoma da Madeira, Funchal, Portugal
| | - M J Cálix
- Serviço de Pediatria, Hospital de São Teotónio, Centro Hospitalar Tondela-Viseu, Viseu, Portugal
| | - D Bordalo
- Serviço de Pediatria, Unidade Hospitalar de Famalicão, Centro Hospitalar do Médio Ave, Vila Nova de Famalicão, Portugal
| | - D Silva
- Serviço de Imunoalergologia, Centro Hospitalar Universitário de São João, E.P.E., Porto, Portugal
| | - M J Vasconcelos
- Serviço de Imunoalergologia, Centro Hospitalar Universitário de São João, E.P.E., Porto, Portugal
| | - R M Fernandes
- Departamento de Pediatria, Hospital de Santa Maria, Centro Hospitalar Universitário Lisboa Norte, Lisboa, Portugal.,Farmacologia Clínica e Terapêutica, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - R Ferreira
- Departamento de Pediatria, Hospital de Santa Maria, Centro Hospitalar Universitário Lisboa Norte, Lisboa, Portugal.,Clínica Universitária de Pediatria, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - P Freitas
- Bloco operatório, Centro Hospitalar Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - F Lopes
- MEDIDA - Medicina, Educação, Investigação, Desenvolvimento e Avaliação, Porto, Portugal
| | - J Almeida Fonseca
- Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Porto, Portugal.,Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS), Faculty of Medicine, University of Porto, Porto, Portugal.,Allergy Unit, Instituto and Hospital CUF, Porto, Portugal.,MEDIDA - Medicina, Educação, Investigação, Desenvolvimento e Avaliação, Porto, Portugal
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Affiliation(s)
| | | | - O Ribeiro
- University of Aveiro & University of Porto - CINTESIS
| | - C Paul
- Center for Health Technology and Services Research
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Jopp D, Boerner K, Kim K, Butt A, Ribeiro O, Araujo L, Rott C. THINKING ABOUT THE END OF LIFE WHEN IT IS NEAR: A COMPARISON OF GERMAN AND PORTUGUESE CENTENARIANS. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.2480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | | | - K Kim
- University of Massachusetts Boston
| | - A Butt
- University of Massachusetts Boston
| | - O Ribeiro
- University of Aveiro & University of Porto - CINTESIS
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Ferreira C, Zalis M, Montenegro G, Custodio M, Zukin M, Castro G, Mathias C, Haddad C, De Lima V, Araujo L, Baldotto C, Gelatti A, Bustamante C, Souza A, Reis M. PD.1.06 EGFR Uncommon Mutations Frequency in a 1,688 NSCLC Patients Database in Brazil. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.07.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Espina-Benitez M, Araujo L, Prieto A, Navalón A, Vílchez JL, Valera P, Zambrano A, Dugas V. Development of a New Microextraction Fiber Combined to On-Line Sample Stacking Capillary Electrophoresis UV Detection for Acidic Drugs Determination in Real Water Samples. Int J Environ Res Public Health 2017; 14:ijerph14070739. [PMID: 28686186 PMCID: PMC5551177 DOI: 10.3390/ijerph14070739] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 06/29/2017] [Accepted: 07/04/2017] [Indexed: 01/26/2023]
Abstract
A new analytical method coupling a (off-line) solid-phase microextraction with an on-line capillary electrophoresis (CE) sample enrichment technique was developed for the analysis of ketoprofen, naproxen and clofibric acid from water samples, which are known as contaminants of emerging concern in aquatic environments. New solid-phase microextraction fibers based on physical coupling of chromatographic supports onto epoxy glue coated needle were studied for the off-line preconcentration of these micropollutants. Identification and quantification of such acidic drugs were done by capillary zone electrophoresis (CZE) using ultraviolet diode array detection (DAD). Further enhancement of concentration sensitivity detection was achieved by on-line CE “acetonitrile stacking” preconcentration technique. Among the eight chromatographic supports investigated, Porapak Q sorbent showed higher extraction and preconcentration capacities. The screening of parameters that influence the microextraction process was carried out using a two-level fractional factorial. Optimization of the most relevant parameters was then done through a surface response three-factor Box-Behnken design. The limits of detection and limits of quantification for the three drugs ranged between 0.96 and 1.27 µg∙L−1 and 2.91 and 3.86 µg∙L−1, respectively. Recovery yields of approximately 95 to 104% were measured. The developed method is simple, precise, accurate, and allows quantification of residues of these micropollutants in Genil River water samples using inexpensive fibers.
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Affiliation(s)
- Maria Espina-Benitez
- Laboratory of Analytical Chemistry and Electrochemistry, Faculty of Engineering, University of Zulia, P.O. Box 4011-A-526, Maracaibo 4005, Venezuela.
- Université de Lyon, CNRS, Université Claude Bernard Lyon 1, ENS de Lyon, Institut des Sciences Analytiques, UMR 5280, 5 rue de la Doua, F-69100 VILLEURBANNE, France.
| | - Lilia Araujo
- Laboratory of Analytical Chemistry and Electrochemistry, Faculty of Engineering, University of Zulia, P.O. Box 4011-A-526, Maracaibo 4005, Venezuela.
| | - Avismelsi Prieto
- Laboratory of Analytical Chemistry and Electrochemistry, Faculty of Engineering, University of Zulia, P.O. Box 4011-A-526, Maracaibo 4005, Venezuela.
| | - Alberto Navalón
- Research Group of Analytical Chemistry and Life Sciences, Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Campus of Fuentenueva, E-18071 Granada, Spain.
| | - José Luis Vílchez
- Research Group of Analytical Chemistry and Life Sciences, Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Campus of Fuentenueva, E-18071 Granada, Spain.
| | - Paola Valera
- Laboratory of Analytical Chemistry and Electrochemistry, Faculty of Engineering, University of Zulia, P.O. Box 4011-A-526, Maracaibo 4005, Venezuela.
| | - Ana Zambrano
- Laboratory of Analytical Chemistry and Electrochemistry, Faculty of Engineering, University of Zulia, P.O. Box 4011-A-526, Maracaibo 4005, Venezuela.
| | - Vincent Dugas
- Université de Lyon, CNRS, Université Claude Bernard Lyon 1, ENS de Lyon, Institut des Sciences Analytiques, UMR 5280, 5 rue de la Doua, F-69100 VILLEURBANNE, France.
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Garcia-Fulgueiras V, Araujo L, Bado I, Cordeiro N, Mota M, Laguna G, Algorta G, Vignoli R. Allodemic distribution of plasmids co-harbouring bla CTX-M-15 / aac(6′)-Ib -cr/ qnrB in Klebsiella pneumoniae is the main source of extended-spectrum β-lactamases in Uruguay’s paediatric hospital. J Glob Antimicrob Resist 2017; 9:68-73. [DOI: 10.1016/j.jgar.2017.01.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 01/25/2017] [Accepted: 01/26/2017] [Indexed: 10/19/2022] Open
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Rob D, Špunda R, Lindner J, Šmalcová J, Šmíd O, Kovárník T, Linhart A, Bìlohlávek J, Marinoni MM, Cianchi G, Trapani S, Migliaccio ML, Gucci L, Bonizzoli M, Cramaro A, Cozzolino M, Valente S, Peris A, Grins E, Kort E, Weiland M, Shresta NM, Davidson P, Algotsson L, Fitch S, Marco G, Sturgill J, Lee S, Dickinson M, Boeve T, Khaghani A, Wilton P, Jovinge S, Ahmad AN, Loveridge R, Vlachos S, Patel S, Gelandt E, Morgan L, Butt S, Whitehorne M, Kakar V, Park C, Hayes M, Willars C, Hurst T, Best T, Vercueil A, Auzinger G, Adibelli B, Akovali N, Torgay A, Zeyneloglu P, Pirat A, Kayhan Z, Schmidbauer SS, Herlitz J, Karlsson T, Friberg H, Knafelj R, Radsel P, Duprez F, Bonus T, Cuvelier G, Mashayekhi S, Maka M, Ollieuz S, Reychler G, Mosaddegh R, Abbasi S, Talaee S, Zotzmann VZ, Staudacher DS, Wengenmayer TW, Dürschmied DD, Bode CB, Nelskylä A, Nurmi J, Jousi M, Schramko A, Mervaala E, Ristagno G, Skrifvars M, Ozsoy G, Kendirli T, Azapagasi E, Perk O, Gadirova U, Ozcinar E, Cakici M, Baran C, Durdu S, Uysalel A, Dogan M, Ramoglu M, Ucar T, Tutar E, Atalay S, Akar R, Kamps M, Leeuwerink G, Hofmeijer J, Hoiting O, Van der Hoeven J, Hoedemaekers C, Konkayev A, Kuklin V, Kondratyev T, Konkayeva M, Akhatov N, Sovershaev M, Tveita T, Dahl V, Wihersaari L, Skrifvars MB, Bendel S, Kaukonen KM, Vaahersalo J, Romppanen J, Pettilä V, Reinikainen M, Lybeck A, Cronberg T, Nielsen N, Friberg H, Rauber M, Steblovnik K, Jazbec A, Noc M, Kalasbail P, Garrett F, Kulstad E, Bergström DJ, Olsson HR, Schmidbauer S, Friberg H, Mandel I, Mikheev S, Podoxenov Y, Suhodolo I, Podoxenov A, Svirko J, Sementsov A, Maslov L, Shipulin V, Vammen LV, Rahbek SR, Secher NS, Povlsen JP, Jessen NJ, Løfgren BL, Granfeldt AG, Grossestreuer A, Perman S, Patel P, Ganley S, Portmann J, Cocchi M, Donnino M, Nassar Y, Fathy S, Gaber A, Mokhtar S, Chia YC, Lewis-Cuthbertson R, Mustafa K, Sabra A, Evans A, Bennett P, Eertmans W, Genbrugge C, Boer W, Dens J, De Deyne C, Jans F, Skorko A, Thomas M, Casadio M, Coppo A, Vargiolu A, Villa J, Rota M, Avalli L, Citerio G, Moon JB, Cho JH, Park CW, Ohk TG, Shin MC, Won MH, Papamichalis P, Zisopoulou V, Dardiotis E, Karagiannis S, Papadopoulos D, Zafeiridis T, Babalis D, Skoura A, Staikos I, Komnos A, Passos SS, Maeda F, Souza LS, Filho AA, Granjeia TAG, Schweller M, Franci D, De Carvalho Filho M, Santos TM, De Azevedo P, Wall R, Welters I, Tansuwannarat P, Sanguanwit P, Langer T, Carbonara M, Caccioppola A, Fusarini CF, Carlesso E, Paradiso E, Battistini M, Cattaneo E, Zadek F, Maiavacca R, Stocchetti N, Pesenti A, Ramos A, Acharta F, Toledo J, Perezlindo M, Lovesio L, Dogliotti A, Lovesio C, Schroten N, Van der Veen B, De Vries MC, Veenstra J, Abulhasan YB, Rachel S, Châtillon-Angle M, Alabdulraheem N, Schiller I, Dendukuri N, Angle M, Frenette C, Lahiri S, Schlick K, Mayer SA, Lyden P, Akatsuka M, Arakawa J, Yamakage M, Rubio J, Mateo-Sidron JAR, Sierra R, Celaya M, Benitez L, Alvarez-Ossorio S, Rubio J, Mateo-Sidron JAR, Sierra R, Fernandez A, Gonzalez O, Engquist H, Rostami E, Enblad P, Toledo J, Ramos A, Acharta F, Canullo L, Nallino J, Dogliotti A, Lovesio C, Perreault M, Talic J, Frenette AJ, Burry L, Bernard F, Williamson DR, Adukauskiene D, Cyziute J, Adukauskaite A, Malciene L, Luca L, Rogobete A, Bedreag O, Papurica M, Sarandan M, Cradigati C, Popovici S, Vernic C, Sandesc D, Avakov V, Shakhova I, Trimmel H, Majdan M, Herzer GH, Sokoloff CS, Albert M, Williamson D, Odier C, Giguère J, Charbonney E, Bernard F, Husti Z, Kaptás T, Fülep Z, Gaál Z, Tusa M, Donnelly J, Aries M, Czosnyka M, Robba C, Liu M, Ercole A, Menon D, Hutchinson P, Smielewski P, López R, Graf J, Montes JM, Kenawi M, Kandil A, Husein K, Samir A, Heijneman J, Huijben J, Abid-Ali F, Stolk M, Van Bommel J, Lingsma H, Van der Jagt M, Cihlar RC, Mancino G, Bertini P, Forfori F, Guarracino F, Pavelescu D, Grintescu I, Mirea L, Alamri S, Tharwat M, Kono N, Okamoto H, Uchino H, Ikegami T, Fukuoka T, Simoes M, Trigo E, Coutinho P, Pimentel J, Franci A, Basagni D, Boddi M, Cozzolino M, Anichini V, Cecchi A, Peris A, Markopoulou D, Venetsanou K, Papanikolaou I, Barkouri T, Chroni D, Alamanos I, Cingolani E, Bocci MG, Pisapia L, Tersali A, Cutuli SL, Fiore V, Palma A, Nardi G, Antonelli M, Coke R, Kwong A, Dwivedi DJ, Xu M, McDonald E, Marshall JC, Fox-Robichaud AE, Charbonney E, Liaw PC, Kuchynska I, Malysh IR, Zgrzheblovska LV, Mestdagh L, Verhoeven EF, Hubloue I, Ruel-laliberte J, Zarychanski R, Lauzier F, Bonaventure PL, Green R, Griesdale D, Fowler R, Kramer A, Zygun D, Walsh T, Stanworth S, Léger C, Turgeon AF, Baron DM, Baron-Stefaniak J, Leitner GC, Ullrich R, Tarabrin O, Mazurenko A, Potapchuk Y, Sazhyn D, Tarabrin P, Tarabrin O, Mazurenko A, Potapchuk Y, Sazhyn D, Tarabrin P, Pérez AG, Silva J, Artemenko V, Bugaev A, Tokar I, Konashevskaya S, Kolesnikova IM, Roitman EV, Kiss TR, Máthé Z, Piros L, Dinya E, Tihanyi E, Smudla A, Fazakas J, Ubbink R, Boekhorst te P, Mik E, Caneva L, Ticozzelli G, Pirrelli S, Passador D, Riccardi F, Ferrari F, Roldi EM, Di Matteo M, Bianchi I, Iotti GA, Zurauskaite G, Voegeli A, Meier M, Koch D, Haubitz S, Kutz A, Bargetzi M, Mueller B, Schuetz P, Von Meijenfeldt G, Van der Laan M, Zeebregts C, Christopher KB, Vernikos P, Melissopoulou T, Kanellopoulou G, Panoutsopoulou M, Xanthis D, Kolovou K, Kypraiou T, Floros J, Broady H, Pritchett C, Marshman M, Jannaway N, Ralph C, Lehane CL, Keyl CK, Zimmer EZ, Trenk DT, Ducloy-Bouthors AS, Jonard MJ, Fourrier F, Piza F, Correa T, Marra A, Guerra J, Rodrigues R, Vilarinho A, Aranda V, Shiramizo S, Lima MR, Kallas E, Cavalcanti AB, Donoso M, Vargas P, Graf J, McCartney J, Ramsay S, McDowall K, Novitzky-Basso I, Wright C, Medic MG, Bielen L, Radonic V, Zlopasa O, Vrdoljak NG, Gasparovic V, Radonic R, Narváez G, Cabestrero D, Rey L, Aroca M, Gallego S, Higuera J, De Pablo R, González LR, Chávez GN, Lucas JH, Alonso DC, Ruiz MA, Valarezo LJ, De Pablo Sánchez R, Real AQ, Wigmore TW, Bendavid I, Cohen J, Avisar I, Serov I, Kagan I, Singer P, Hanison J, Mirza U, Conway D, Takasu A, Tanaka H, Otani N, Ohde S, Ishimatsu S, Coffey F, Dissmann P, Mirza K, Lomax M, Dissmann P, Coffey F, Mirza K, Lomax M, Miner JR, Leto R, Markota AM, Gradišek PG, Aleksejev VA, Sinkovič AS, Romagnoli S, Chelazzi C, Zagli G, Benvenuti F, Mancinelli P, Boninsegni P, Paparella L, Bos AT, Thomas O, Goslar T, Knafelj R, Perreault M, Martone A, Sandu PR, Rosu VA, Capilnean A, Murgoi P, Frenette AJ, Lecavalier A, Jayaraman D, Rico P, Bellemare P, Gelinas C, Williamson D, Nishida T, Kinoshita T, Iwata N, Yamakawa K, Fujimi S, Maggi L, Sposato F, Citterio G, Bonarrigo C, Rocco M, Zani V, De Blasi RA, Alcorn D, Barry L, Riedijk MA, Milstein DM, Caldas J, Panerai R, Camara L, Ferreira G, Bor-Seng-Shu E, Lima M, Galas F, Mian N, Nogueira R, de Oliveira GQ, Almeida J, Jardim J, Robinson TG, Gaioto F, Hajjar LA, Zabolotskikh I, Musaeva T, Saasouh W, Freeman J, Turan A, Saseedharan S, Pathrose E, Poojary S, Messika J, Martin Y, Maquigneau N, Henry-Lagarrigue M, Puechberty C, Stoclin A, Martin-Lefevre L, Blot F, Dreyfuss D, Dechanet A, Hajage D, Ricard J, Almeida E, Almeida J, Landoni G, Galas F, Fukushima J, Fominskiy E, De Brito C, Cavichio L, Almeida L, Ribeiro U, Osawa E, Boltes R, Battistella L, Hajjar L, Fontela P, Lisboa T, Junior LF, Friedman GF, Abruzzi F, Primo JAP, Filho PM, de Andrade JS, Brenner KM, boeira MS, Leães C, Rodrigues C, Vessozi A, Machado AS, Weiler M, Bryce H, Hudson A, Law T, Reece-Anthony R, Molokhia A, Abtahinezhadmoghaddam F, Cumber E, Channon L, Wong A, Groome R, Gearon D, Varley J, Wilson A, Reading J, Wong A, Zampieri FG, Bozza FA, Ferez M, Fernandes H, Japiassú A, Verdeal J, Carvalho AC, Knibel M, Salluh JI, Soares M, Gao J, Ahmadnia E, Patel B, McCartney J, MacKay A, Binning S, Wright C, Pugh RJ, Battle C, Hancock C, Harrison W, Szakmany T, Mulders F, Vandenbrande J, Dubois J, Stessel B, Siborgs K, Ramaekers D, Soares M, Silva UV, Homena WS, Fernandes GC, Moraes AP, Brauer L, Lima MF, De Marco F, Bozza FA, Salluh JI, Maric N, Mackovic M, Udiljak N, Bosso CE, Caetano RD, Cardoso AP, Souza OA, Pena R, Mescolotte MM, Souza IA, Mescolotte GM, Bangalore H, Borrows E, Barnes D, Ferreira V, Azevedo L, Alencar G, Andrade A, Bierrenbach A, Buoninsegni LT, Bonizzoli M, Cecci L, Cozzolino M, Peris A, Lindskog J, Rowland K, Sturgess P, Ankuli A, Molokhia A, Rosa R, Tonietto T, Ascoli A, Madeira L, Rutzen W, Falavigna M, Robinson C, Salluh J, Cavalcanti A, Azevedo L, Cremonese R, Da Silva D, Dornelles A, Skrobik Y, Teles J, Ribeiro T, Eugênio C, Teixeira C, Zarei M, Hashemizadeh H, Eriksson M, Strandberg G, Lipcsey M, Larsson A, Lignos M, Crissanthopoulou E, Flevari K, Dimopoulos P, Armaganidis A, Golub JG, Markota AM, Stožer AS, Sinkovič AS, Rüddel H, Ehrlich C, Burghold CM, Hohenstein C, Winning J, Sellami W, Hajjej Z, Bousselmi M, Gharsallah H, Labbene I, Ferjani M, Sattler J, Steinbrunner D, Poppert H, Schneider G, Blobner M, Kanz KG, Schaller SJ, Apap K, Xuereb G, Xuereb G, Apap K, Massa L, Xuereb G, Apap K, Massa L, Delvau N, Penaloza A, Liistro G, Thys F, Delattre IK, Hantson P, Roy PM, Gianello P, Hadîrcă L, Ghidirimschi A, Catanoi N, Scurtov N, Bagrinovschi M, Sohn YS, Cho YC, Golovin B, Creciun O, Ghidirimschi A, Bagrinovschi M, Tabbara R, Whitgift JZ, Ishimaru A, Yaguchi A, Akiduki N, Namiki M, Takeda M, Tamminen JN, Reinikainen M, Uusaro A, Taylor CG, Mills ED, Mackay AD, Ponzoni C, Rabello R, Serpa A, Assunção M, Pardini A, Shettino G, Corrêa T, Vidal-Cortés PV, Álvarez-Rocha L, Fernández-Ugidos P, Virgós-Pedreira A, Pérez-Veloso MA, Suárez-Paul IM, Del Río-Carbajo L, Fernández SP, Castro-Iglesias A, Butt A, Alghabban AA, Khurshid SK, Ali ZA, Nizami IN, Salahuddin NS, Alshahrani M, Alsubaie AW, Alshamsy AS, Alkhiliwi BA, Alshammari HK, Alshammari MB, Telmesani NK, Alshammari RB, Asonto LP, Zampieri FG, Damiani LP, Bozza F, Salluh JI, Cavalcanti AB, El Khattate A, Bizrane M, Madani N, Belayachi J, Abouqal R, Ramnarain D, Gouw-Donders B, Benstoem C, Moza A, Meybohm P, Stoppe C, Autschbach R, Devane D, Goetzenich A, Taniguchi LU, Araujo L, Salgado G, Vieira JM, Viana J, Ziviani N, Pessach I, Lipsky A, Nimrod A, O´Connor M, Matot I, Segal E, Kluzik A, Gradys A, Smuszkiewicz P, Trojanowska I, Cybulski M, De Jong A, Sebbane M, Chanques G, Jaber S, Rosa R, Robinson C, Bessel M, Cavalheiro L, Madeira L, Rutzen W, Oliveira R, Maccari J, Falavigna M, Sanchez E, Dutra F, Dietrich C, Balzano P, Rezende J, Teixeira C, Sinha S, Majhi K, Gorlicki JG, Pousset FP, Kelly J, Aron J, Gilbert AC, Urankar NP, Knafelj R, Irazabal M, Bosque M, Manciño J, Kotsopoulos A, Jansen N, Abdo W, Casey ÚM, O’Brien B, Plant R, Doyle B. 37th International Symposium on Intensive Care and Emergency Medicine (part 2 of 3). Crit Care 2017. [PMCID: PMC5374552 DOI: 10.1186/s13054-017-1630-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Araujo L, Bispo WMS, Rios VS, Fernandes SA, Rodrigues FA. Induction of the Phenylpropanoid Pathway by Acibenzolar-S-Methyl and Potassium Phosphite Increases Mango Resistance to Ceratocystis fimbriata Infection. Plant Dis 2015; 99:447-459. [PMID: 30699557 DOI: 10.1094/pdis-08-14-0788-re] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
This study used both microscopic and biochemical analyses to investigate the possible defense responses induced by acibenzolar-S-methyl (ASM) and potassium phosphite (Phi) in mango plants inoculated with Ceratocystis fimbriata. Disease development was evaluated in the stems of inoculated mango plants and these were examined using fluorescence and light microscopy. High-performance liquid chromatography (HPLC) was used to quantify secondary metabolites in the stem sections. Spraying the plants with ASM and Phi reduced internal necrosis and disease development. The ASM and Phi induced many microscopic defense responses in the stem tissues against C. fimbriata infection. HPLC analysis revealed that the concentrations of two alkaloids (theobromine and 7-methylxanthine) and 10 phenolic compounds (catechin, epicatechin, epigallocatechin, gallic acid, myricetin, p-coumaric acid, p-hydroxybenzoic acid, phloridzin, sinapinic acid, and salicylhydroxamic acid) were higher in the stem tissues of plants sprayed with ASM or Phi than in inoculated control treatment. The concentrations of phenolic compounds were higher in the stem tissues of inoculated plants than in noninoculated plants, while the inverse was observed for alkaloids. Higher concentrations of secondary metabolites in the stem tissues were detected in the early stages of fungal infection, especially in plants treated with inducers. Taken together, the results from the present study clearly support the concept that the phenylpropanoid pathway in the stem tissues of mango plants infected by C. fimbriata can be induced by ASM and Phi.
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Affiliation(s)
| | | | | | | | - F A Rodrigues
- Department of Plant Pathology, Viçosa Federal University, CEP 36570-900, Viçosa, MG, Brazil
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Araujo L, Amann J, Imielinski M, Greulich H, Meyerson M, Carbone D. Oncogenic ARAF as a New Driver in Lung Adenocarcinoma. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.08.310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Araujo L, Timmers C, Liu T, Yilmaz S, Natarajan T, Zhang J, Shilo K, Zhao W, Amann J, Lammers P, Carbone D. Genomic Characterization of Non-Small Cell Lung Cancer in African Americans by Targeted Massively Parallel Sequencing. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.08.303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Araujo L, Troconis M, Espina M, Prieto A. Persistence of Ibuprofen, Ketoprofen, Diclofenac and Clofibric Acid in Natural Waters. ACTA ACUST UNITED AC 2014. [DOI: 10.15764/eh.2014.02005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kidd M, Araujo L, Araujo C, McDaniel C, McIntyre D. A study assessing hen and progeny performance through dam diet fortification with a Saccharomyces cerevisiae fermentation product. J APPL POULTRY RES 2013. [DOI: 10.3382/japr.2013-00774] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Araujo L, Troconis ME, Cubillán D, Mercado J, Villa N, Prieto A. Single drop microextraction and gas chromatography-mass spectrometry for the determination of diflufenican, mepanipyrim, fipronil, and pretilachlor in water samples. Environ Monit Assess 2013; 185:10225-10233. [PMID: 23887887 DOI: 10.1007/s10661-013-3327-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Accepted: 06/26/2013] [Indexed: 06/02/2023]
Abstract
An analytical method for the determination of diflufenican, mepanipyrim, pretilachlor, and fipronil in water samples was developed using single drop microextraction in the direct immersion mode and gas chromatography-mass spectrometry. A factorial fractionated design of type 2(6-1) at two levels was performed, to study the influence of experimental variables such as ionic strength, pH, agitation speed, extraction time, drop volume, and sample volume. To establish the optimal conditions for the variables that were significant, a Doehlert design was performed. The optimum conditions of extraction were 1 μL of heptane immersed in 4.0 mL of sample with continuous agitation at 500 rpm for 30 min at room temperature. The developed method proved to have good linearity for the range studied. The detection limits were 0.07 μg L(-1) for diflufenican, 0.03 μg L(-1) for mepanipyrim, 0.08 μg L(-1) for pretilachlor, and 1.39 μg L(-1) for fipronil. The method was validated on river water samples, showing the absence of matrix effect and recoveries ranged from 90.1 to 107.8 %. The results show that the method developed is accurate, sensitive, rapid, simple, and low cost, so it is recommended for application in the analysis of these different classes of pesticides in water samples.
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Affiliation(s)
- Lilia Araujo
- Laboratory of Analytical Chemistry and Electrochemistry, Faculty of Engineering, University of Zulia, P.O. Box 4011-A-526, Maracaibo, Venezuela,
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Araujo L, Atmanspacher M, Dantas T, Barreto O, Franca R. Physicochemical characterization of orthodontic bonding resins. Dent Mater 2013. [DOI: 10.1016/j.dental.2013.08.138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Favero FC, Araujo L, Bouwmans G, Finazzi V, Villatoro J, Pruneri V. Spheroidal Fabry-Perot microcavities in optical fibers for high-sensitivity sensing. Opt Express 2012; 20:7112-7118. [PMID: 22453393 DOI: 10.1364/oe.20.007112] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
All-optical-fiber Fabry-Perot interferometers (FPIs) with microcavities of different shapes were investigated. It was found that the size and shape of the cavity plays an important role on the performance of these interferometers. To corroborate the analysis, FPIs with spheroidal cavities were fabricated by splicing a photonic crystal fiber (PCF) with large voids and a conventional single mode fiber (SMF), using an ad hoc splicing program. It was found that the strain sensitivity of FPIs with spheroidal cavities can be controlled through the dimensions of the spheroid. For example, a FPI whose cavity had a size of ~10x60 μm exhibited strain sensitivity of ~10.3 pm/με and fringe contrast of ~38 dB. Such strain sensitivity is ~10 times larger than that of the popular fiber Bragg gratings (~1.2 pm/με) and higher than that of most low-finesse FPIs. The thermal sensitivity of our FPIs is extremely low (~1pm/°C) due to the air cavities. Thus, a number of temperature-independent ultra-sensitive microscopic sensors can be devised with the interferometers here proposed since many parameters can be converted to strain. To this end, simple vibration sensors are demonstrated.
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Affiliation(s)
- F C Favero
- Pontifical Catholic University of Rio de Janeiro, Rua Marquês de São Vicente 225, 22453-900, Rio de Janeiro, RJ, Brazil
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Abstract
INTRODUCTION At the same time that there are increased demands we have become more sedentary, increasing risk factors for new diseases. All this reflects on our quality of life with special emphasis upon a particular syndrome called Burnout. Aviation is no exception and packed into its processes each day more expeditious, promotes a perfect environment for the development and spread of the syndrome. AIM To evaluate the quality of life, organizational climate, and the level of physical activity among employees of a Brazilian airline. METHODS A cross-sectional design was conducted with 8 subjects. RESULTS Total score on the WHOQOL quality of life questionnaire was 64.7 (SD 10.8), and the environmental field showed the lowest score. Nevertheless, the sedentary risk factor was performed in 25% of the sample. About the organizational climate, it can be seen that 6.12% of the sample was framed in "Professional Exhaustive", 29.60% in the condition of "Warning", and 64.37% in the condition of "Professional Efficiency". CONCLUSION the study found a low quality of life, especially in the environmental category, sedentary people and a large proportion of employees in this Brazilian airline with negative scores on the Organizational Climate.
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Affiliation(s)
- M Castro
- University of Gama Filho, Treze de Maio St, 681, 01327-000, São Paulo, Brazil
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Araujo L, Prieto A, Troconis M, Urribarri G, Sandrea W, Mercado J. Determination of acidic herbicides in water samples by in situ derivatization, single drop microextraction and gas chromatography-mass spectrometry. J BRAZIL CHEM SOC 2011. [DOI: 10.1590/s0103-50532011001200016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Araujo L, Rojas C, Cubillan D, Villa N, Mercado J, Prieto A. Determination of Trifloxystrobin, Tebufenozide, and Halofenozide in Foods by Micellar Electrokinetic Capillary Chromatography. ANAL LETT 2010. [DOI: 10.1080/00032711003717372] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Bermúdez C, Tejada P, González F, Pérez-Wulff J, Araujo L, Azpúrua H, Cadenas LF, Quintero RA. Umbilical cord transection in twin-reverse arterial perfusion syndrome with the use of a coaxial bipolar electrode (Versapoint®). J Matern Fetal Neonatal Med 2009; 14:277-8. [PMID: 14738175 DOI: 10.1080/jmf.14.4.277.278] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Umbilical-cord occlusion has been proposed for the treatment of twin-reverse arterial perfusion syndrome (TRAP). Transection of the umbilical cord is necessary in patients with monoamniotic or 'pseudomonoamniotic' TRAP to avoid subsequent cord entanglement and demise of the pump twin. We present a case of TRAP in which the umbilical cord was successfully ligated with suture and transected with the Versapoint electrode.
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Affiliation(s)
- C Bermúdez
- Unidad de Perinatología Dr Freddy Guevara-Zuloaga, Hospital Universitario de Caracas, Caracas, Venezuela
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Botelho M, Crespo M, Almeida A, Vieira P, Delgado M, Araujo L, Machado J, Correia da Costa J. Schistosoma haematobium and Schistosomiasis mansoni: Production of an estradiol-related compound detected by elisa. Exp Parasitol 2009; 122:250-3. [DOI: 10.1016/j.exppara.2009.04.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2008] [Revised: 03/28/2009] [Accepted: 04/01/2009] [Indexed: 11/30/2022]
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Prieto A, Araujo L, Navalon A, Vilchez J. Comparison of Solid-Phase Extraction and Solid-Phase Microextraction Using Octadecylsilane Phase for the Determination of Pesticides in Water Samples. CURR ANAL CHEM 2009. [DOI: 10.2174/157341109788680309] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Araujo L, Metzger Filho O, Gomes CA, Moitinho MV, Silva AM, Carcano FM, Noronha Júnior H. Clinical outcomes and predictive factors in patients with liver metastasis from breast cancer treated with gemcitabine and cisplatin (GC) salvage regimen. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e17568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e17568 Background: Liver metastasis (mets) from breast cancer is typically associated with poor prognosis. GC is a good option, since patients (pts) have often failed anthracycline and taxane therapy and liver dysfunction may preclude these regimens. Methods: Retrospective study designed to evaluate the clinical outcomes and predictive factors in pts with metastatic breast cancer treated with GC, with special interest for liver mets. Results: From 2004 to 2007, 56 pts were treated with GC. Median age was 52.1 years, 33 pts had PS 0–1, 26 were hormone receptor (HR) negative, 32 had been treated with 3 or more chemotherapy (CT) regimens and 34 had liver mets. The median overall survival (OS) was 7,1 mo (95% CI; 4.3–9.7), the progression free survival was 3.3 mo (95% CI; 2.2–5.5) and the clinical response rate was 25%. OS was 4.0 mo (95% CI; 2.3–8.9) for pts with liver mets and 9.7 mo (95% CI; 6.9–12.9) for pts without liver mets (p = 0.03). No factor showed correlation with OS in pts with liver mets, including age < 45 years (median OS [95% CI]: 2.8 mo [1.8–11.5] versus 4.5 mo [2.5–8.9]; p = 0.74), PS 0–1 (median OS [95% CI]: 7.3 mo [2.5–11.5] versus 2.8 mo [0.8–9.7]; p = 0.55), HR positivity (median OS [95% CI]: 7.3 mo [2.0–11.5] versus 5.9 mo [1.9–9.7]; p = 0.87), bilirubin level ≥ 5 times the superior limit of the normality (median OS [95% CI]: 5.9 mo [0.5–16.7] versus 4.5 mo [2.5–9.7]; p = 0.45), progression free interval after the previous CT ≤ 1 mo (median OS [95% CI]: 4.0 mo [2.0–9.7] versus 7.1 mo [2.5–14.7]; p = 0.93) and previous treatment with ≥ 3 CT regimens (median OS [95% CI]: 7.3 mo [1.0–11.0] versus 4.0 mo [2.0–9.7]; p = 0.93). Conclusions: These data is in accordance with the literature concerning the dismal prognosis in liver mets from breast cancer and the clinical activity of GC. We could not define predictive factors in this cohort, which was probably due to the relatively small number of pts. No significant financial relationships to disclose.
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Affiliation(s)
- L. Araujo
- Brazilian National Cancer Institute, Rio de Janeiro, Brazil; Jules Bordet Institute, Brussels, Belgium
| | - O. Metzger Filho
- Brazilian National Cancer Institute, Rio de Janeiro, Brazil; Jules Bordet Institute, Brussels, Belgium
| | - C. A. Gomes
- Brazilian National Cancer Institute, Rio de Janeiro, Brazil; Jules Bordet Institute, Brussels, Belgium
| | - M. V. Moitinho
- Brazilian National Cancer Institute, Rio de Janeiro, Brazil; Jules Bordet Institute, Brussels, Belgium
| | - A. M. Silva
- Brazilian National Cancer Institute, Rio de Janeiro, Brazil; Jules Bordet Institute, Brussels, Belgium
| | - F. M. Carcano
- Brazilian National Cancer Institute, Rio de Janeiro, Brazil; Jules Bordet Institute, Brussels, Belgium
| | - H. Noronha Júnior
- Brazilian National Cancer Institute, Rio de Janeiro, Brazil; Jules Bordet Institute, Brussels, Belgium
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Araujo L, Van Canneyt K, Bode A, Planken R, Segers P, Verdonck P. P9.07 ULTRASOUND MAPPING OF THE SUPERFICIAL VEINS IN HEALTHY SUBJECTS. Artery Res 2009. [DOI: 10.1016/j.artres.2009.10.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Marquina V, Araujo L, Ruíz J, Rodríguez-Malaver A, Vit P. [Composition and antioxidant capacity of the guava (Psidium guajava L.) fruit, pulp and jam]. Arch Latinoam Nutr 2008; 58:98-102. [PMID: 18589579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Guava (Psidium guajava L.) is a tropical fruit widely relished in the tropics, consumed fresh and processed. In this work, free acidity, pH, ash, nitrogen and water contents were measured, besides the total polyphenol content and the antioxidant capacity of the peel, the shell and the pulp of the fresh fruit and the processed guava pulp and jam. The highest phenolic content was found in the guava skin la (10.36 g/100 g skin) and the lowest in the jam (1.47 g/ 100 g jam), in dry weight. The antioxidant capacity of the skin was 10 times higher than that of the pulp, and the jam was twice that of the shell.
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Affiliation(s)
- V Marquina
- Facultad de Farmacia y Bioanálisis, Universidad de Los Andes, Mérida, Venezuela
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Abstract
BACKGROUND Poorly documented self-reported drug allergy (DAll) is a frequent problem in daily clinical practice and has a considerable impact on prescription choices. The diagnostic work-up of drug hypersensitivity (DHs) allows a better classification of the reactions and provides patients with more reliable information and recommendations for future treatments. OBJECTIVE To assess the prevalence of self-reported adverse drug reactions (ADRs) and DAll in a paediatric population and to investigate children reporting suspected DAll in order to achieve a firm diagnosis. DESIGN The first phase was based on a cross-sectional survey assessing the life occurrence of ADRs and self-reported DAll carried out at the outpatient clinic of a paediatric hospital. The second phase was based on the diagnostic work-up in children with parent-reported DAll, including detailed anamnesis and in vitro and in vivo investigations (skin and provocation tests). Participants One thousand four hundred and twenty-six parents responded to the initial survey. Sixty of the 67 patients with reported DAll were evaluated at the allergy clinic. RESULTS The prevalences of self-reported ADRs and DAll were 10.2% and 6.0%, respectively. Most of the suspected allergic reactions were non-immediate cutaneous events attributable to beta-lactam antibiotics and occurred in very young children. Thirty-nine of the 60 patients consulting for evaluation had a plausible clinical history and were recommended further investigation. DHs was diagnosed in three children only, based on positive responses in skin (n=1) and oral provocation (n=2) tests. CONCLUSION ADRs are frequently reported in children, and many children are classified as having a DAll. After complete evaluation, only a few of these reactions can be attributed to DHs and DAll. Most of the patients (94% in this study) could actually tolerate the initially suspected drug.
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Affiliation(s)
- E Rebelo Gomes
- Drug Hypersensitivity Clinic-Allergy Department, Hospital Pediatrico Maria Pia, Porto, Portugal.
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Abstract
SUMMARYA nutritional characteristic of trypanosomatid protozoa is thatin vitrothey need a haem-compound as a growth factor, which is supplied as haemoglobin, haematin or haemin. Because haemin and related porphyrins are an important source of oxidative stress in biological systems, the effect of haemin on growth, protein content and the antioxidant defence system inTrypanosoma cruziwas evaluated. We have observed that, in epimastigotes grown under different haemin concentrations in the culture medium (0–30 mg/l), 5 mg/l was the haemin concentration yielding optimum growth. Above 15 mg/l there was a clear decrease in growth rate, producing the epimastigote to amastigote transformation. Such morphological change was observed together with a marked injury of the enzymatic machinery of the parasite, leading to diminished protein synthesis as well as lower activity of the antioxidant enzymes (superoxide dismutase, ascorbate peroxidase and trypanothione reductase), reduced total thiol content and a marked increase in the HaemOx-1 activity and expression. The current work demonstrates that there is a correlation between higher haemin concentrations in the culture medium and oxidative damage in the cells. Under these conditions induction of HaemOx-1 would indicate the important role of this enzyme as an antioxidant defence response inTrypanosoma cruzi.
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Affiliation(s)
- A Ciccarelli
- Centro de Investigaciones sobre Porfirinas y Porfirias, CONICET-UBA, Argentina
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Vílchez JL, Navalón A, Araujo L, Prieto A. Determination of Danofloxacin and Marbofloxacin in Milk Samples by Micellar Liquid Chromatography with Fluorescence Detection. ANAL LETT 2007. [DOI: 10.1080/00032710600966101] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Thomas D, Horowitz J, Bal H, Araujo L, Acton P, Dumont C, Misselwitz B, Ferrari VA. Nichtinvasive Quantifizierung des akuten Myokardinfarktes in einem Kleintiermodell: MRT vs. SPECT vs. PET. ROFO-FORTSCHR RONTG 2006. [DOI: 10.1055/s-2006-941008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Abidov A, Hachamovitch R, Friedman JD, Hayes SW, Kang X, Cohen I, Germano G, Berman DS, Kjaer A, Cortsen A, Federspiel M, Hesse B, Holm S, O’Connor M, Dhalla AK, Wong MY, Wang WQ, Belardinelli L, Therapeutics CV, Epps A, Dave S, Brewer K, Chiaramida S, Gordon L, Hendrix GH, Feng B, Pretorius PH, Bruyant PP, Boening G, Beach RD, Gifford HC, King MA, Fessler JA, Hsu BL, Case JA, Gegen LL, Hertenstein GK, Cullom SJ, Bateman TM, Akincioglu C, Abidov A, Nishina H, Kavanagh P, Kang X, Aboul-Enein F, Yang L, Hayes S, Friedman J, Berman D, Germano G, Santana CA, Rivero A, Folks RD, Grossman GB, Cooke CD, Hunsche A, Faber TL, Halkar R, Garcia EV, Hansen CL, Silver S, Kaplan A, Rasalingam R, Awar M, Shirato S, Reist K, Htay T, Mehta D, Cho JH, Heo J, Dubovsky E, Calnon DA, Grewal KS, George PB, Richards DR, Hsi DH, Singh N, Meszaros Z, Thomas JL, Reyes E, Loong CY, Latus K, Anagnostopoulos C, Underwood SR, Kostacos EJ, Araujo LI, Kostacos EJ, Araujo LI, Lewin HC, Hyun MC, DePuey EG, Tanaka H, Chikamori T, Igarashi Y, Harafuji K, Usui Y, Yanagisawa H, Hida S, Yamashina A, Nasr HA, Mahmoud SA, Dalipaj MM, Golanowski LN, Kemp RAD, Chow BJ, Beanlands RS, Ruddy TD, Michelena HI, Mikolich BM, McNelis P, Decker WAV, Stathopoulos I, Duncan SA, Isasi C, Travin MI, Kritzman JN, Ficaro EP, Corbett JR, Allison JS, Weinsaft JW, Wong FJ, Szulc M, Okin PM, Kligfield P, Harafuji K, Chikamori T, Igarashi Y, Tanaka H, Usui Y, Yanagisawa H, Hida S, Ishimaru S, Yamashima A, Giedd KN, Bergmann SR, Shah S, Emmett L, Allman KC, Magee M, Van Gaal W, Kritharides L, Freedman B, Abidov A, Gerlach J, Akincioglu C, Friedman J, Kavanagh P, Miranda R, Germano G, Berman DS, Hayes SW, Damera N, Lone B, Singh R, Shah A, Yeturi S, Prasad Y, Blum S, Heller EN, Bhalodkar NC, Koutelou M, Kollaros N, Theodorakos A, Manginas A, Leontiadis E, Kouzoumi A, Cokkinos D, Mazzanti M, Marini M, Cianci G, Perna GP, Pai M, Greenberg MD, Liu F, Frankenberger O, Kokkinos P, Hanumara D, Goheen E, Wu C, Panagiotakos D, Fletcher R, Greenberg MD, Liu F, Frankenberger O, Kokkinos P, Hanumara D, Goheen E, Rodriguez OJ, Iyer VN, Lue M, Hickey KT, Blood DK, Bergmann SR, Bokhari S, Chareonthaitawee P, Christensen SD, Allen JL, Kemp BJ, Hodge DO, Ritman EL, Gibbons RJ, Smanio P, Riva G, Rodriquez F, Tricoti A, Nakhlawi A, Thom A, Pretorius PH, King MA, Dahlberg S, Leppo J, Slomka PJ, Nishina H, Berman DS, Akincioglu C, Abidov A, Friedman JD, Hayes SW, Germano G, Petrovici R, Husain M, Lee DS, Nanthakumar K, Iwanochko RM, Brunken RC, DiFilippo F, Neumann DR, Bybel B, Herrington B, Bruckbauer T, Howe C, Lohmann K, Hayden C, Chatterjee C, Lathrop B, Brunken RC, Chen MS, Lohmann KA, Howe WC, Bruckbauer T, Kaczur T, Bybel B, DiFilippo FP, Druz RS, Akinboboye OA, Grimson R, Nichols KJ, Reichek N, Ngai K, Dim R, Ho KT, Pary S, Ahmed SU, Ahlberg A, Cyr G, Vitols PJ, Mann A, Alexander L, Rosenblatt J, Mieres J, Heller GV, Ahmed SU, Ahlberg AW, Cyr G, Navare S, O’Sullivan D, Heller GV, Chiadika S, Lue M, Blood DK, Bergmann SR, Bokhari S, Heston TF, Heller GV, Cerqueira MD, Jones PG, Bryngelson JR, Moutray KL, Gegen LL, Hertenstein GK, Moser K, Case JA, Zellweger MJ, Burger PC, Pfisterer ME, Mueller-Brand J, Kang WJ, Lee BI, Lee DS, Paeng JC, Lee JS, Chung JK, Lee MC, To BN, O’Connell WJ, Botvinick EH, Duvall WL, Croft LB, Einstein AJ, Fisher JE, Haynes PS, Rose RK, Henzlova MJ, Prasad Y, Vashist A, Blum S, Sagar P, Heller EN, Kuwabara Y, Nakayama K, Tsuru Y, Nakaya J, Shindo S, Hasegawa M, Komuro I, Liu YH, Wackers F, Natale D, DePuey G, Taillefer R, Araujo L, Kostacos E, Allen S, Delbeke D, Anstett F, Kansal P, Calvin JE, Hendel RC, Gulati M, Pratap P, Takalkar A, Kostacos E, Alavi A, Araujo L, Melduni RM, Duncan SA, Travin MI, Isasi CR, Rivero A, Santana C, Esiashvili S, Grossman G, Halkar R, Folks RD, Garcia EV, Su H, Dobrucki LW, Chow C, Hu X, Bourke BN, Cavaliere P, Hua J, Sinusas AJ, Spinale FG, Sweterlitsch S, Azure M, Edwards DS, Sudhakar S, Chyun DA, Young LH, Inzucchi SE, Davey JA, Wackers FJ, Noble GL, Navare SM, Calvert J, Hussain SA, Ahlberg AM, Katten DM, Boden WE, Heller GV, Shaw LJ, Yang Y, Antunes A, Botelho MF, Gomes C, de Lima JJP, Silva ML, Moreira JN, Simões S, GonÇalves L, Providência LA, Elhendy A, Bax JJ, Schinkel AF, Valkema R, van Domburg RT, Poldermans D, Arrighi J, Lampert R, Burg M, Soufer R, Veress AI, Weiss JA, Huesman RH, Gullberg GT, Moser K, Case JA, Loong CY, Prvulovich EM, Reyes E, Aswegen AV, Anagnostopoulos C, Underwood SR, Htay T, Mehta D, Sun L, Lacy J, Heo J, Brunken RC, Kaczur T, Jaber W, Ramakrishna G, Miller TD, O’connor MK, Gibbons RJ, Bural GG, Mavi A, Kumar R, El-Haddad G, Srinivas SM, A Alavi, El-Haddad G, Alavi A, Araujo L, Thomas GS, Johnson CM, Miyamoto MI, Thomas JJ, Majmundar H, Ryals LA, Ip ZTK, Shaw LJ, Bishop HA, Carmody JP, Greathouse WG, Yanagisawa H, Chikamori T, Tanaka H, Usui Y, Igarashi U, Hida S, Morishima T, Tanaka N, Takazawa K, Yamashina A, Diedrichs H, Weber M, Koulousakis A, Voth E, Schwinger RHG, Mohan HK, Livieratos L, Gallagher S, Bailey DL, Chambers J, Fogelman I, Sobol I, Barst RJ, Nichols K, Widlitz A, Horn E, Bergmann SR, Chen J, Galt JR, Durbin MK, Ye J, Shao L, Garcia EV, Mahenthiran J, Elliott JC, Jacob S, Stricker S, Kalaria VG, Sawada S, Scott JA, Aziz K, Yasuda T, Gewirtz H, Hsu BL, Moutray K, Udelson JE, Barrett RJ, Johnson JR, Menenghetti C, Taillefer R, Ruddy T, Hachamovitch R, Jenkins SA, Massaro J, Haught H, Lim CS, Underwood R, Rosman J, Hanon S, Shapiro M, Schweitzer P, VanTosh A, Jones S, Harafuji K, Giedd KN, Johnson NP, Berliner JI, Sciacca RR, Chou RL, Hickey KT, Bokhari SS, Rodriguez O, Bokhari S, Moser KW, Moutray KL, Koutelou M, Theodorakos A, Kollaros N, Manginas A, Leontiadis E, Cokkinos D, Mazzanti M, Marini M, Cianci G, Perna GP, Nanasato M, Fujita H, Toba M, Nishimura T, Nikpour M, Urowitz M, Gladman D, Ibanez D, Harvey P, Floras J, Rouleau J, Iwanochko R, Pai M, Guglin ME, Ginsberg FL, Reinig M, Parrillo JE, Cha R, Merhige ME, Watson GM, Oliverio JG, Shelton V, Frank SN, Perna AF, Ferreira MJ, Ferrer-Antunes AI, Rodrigues V, Santos F, Lima J, Cerqueira MD, Magram MY, Lodge MA, Babich JW, Dilsizian V, Line BR, Bhalodkar NC, Lone B, Singh R, Prasad Y, Yeturi S, Blum S, Heller EN, Rodriguez OJ, Skerrett D, Charles C, Shuster MD, Itescu S, Wang TS, Bruyant PP, Pretorius PH, Dahlberg S, King MA, Petrovici R, Iwanochko RM, Lee DS, Emmett L, Husain M, Hosokawa R, Ohba M, Kambara N, Tadamura E, Kubo S, Nohara R, Kita T, Thompson RC, McGhie AI, O’Keefe JH, Christenson SD, Chareonthaitawee P, Kemp BJ, Jerome S, Russell TJ, Lowry DR, Coombs VJ, Moses A, Gottlieb SO, Heiba SI, Yee G, Coppola J, Elmquist T, Braff R, Youssef I, Ambrose JA, Abdel-Dayem HM, Canto J, Dubovsky E, Scott J, Terndrup TE, Faber TL, Folks RD, Dim UR, Mclaughlin J, Pollepalle D, Schapiro W, Wang Y, Akinboboye O, Ngai K, Druz RS, Polepalle D, Phippen-Nater B, Leonardis J, Druz R. Abstracts of original contributions ASNC 2004 9th annual scientific session September 3-–October 3, 2004 New York, New York. J Nucl Cardiol 2004. [DOI: 10.1007/bf02974964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Navalón A, Prieto A, Araujo L, Vílchez JL. Determination of pyrimethanil and kresoxim-methyl in soils by headspace solid-phase microextraction and gas chromatography-mass spectrometry. Anal Bioanal Chem 2004; 379:1100-5. [PMID: 15221197 DOI: 10.1007/s00216-004-2685-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2004] [Revised: 04/26/2004] [Accepted: 05/14/2004] [Indexed: 11/29/2022]
Abstract
A method using headspace solid-phase microextraction (HS-SPME) then gas chromatography-mass spectrometry with selected ion monitoring (GC-MS, SIM) has been developed for determination of trace amounts of the fungicides pyrimethanil and kresoxim-methyl in soil and humic materials. Both fungicides were extracted on to a fused-silica fibre coated with 85 microm polyacrylate (PA). Response-surface methodology was used to optimise the experimental conditions. For soil samples the linear dynamic range of application was 0.004-1.000 microg g(-1) for pyrimethanil and 0.013-1.000 microg g(-1) for kresoxim-methyl. The detection limits were 0.001 microg g(-1) and 0.004 microg g(-1) for pyrimethanil and kresoxim-methyl, respectively. HP-SPME-GC-MS analysis was highly reproducible-relative standard deviations (RSD) were between 6.7 and 12.2%. The method was validated by analysis of spiked matrix samples and used to investigate the presence of pyrimethanil and kresoxim-methyl above the detection limits in soil and humic materials.
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Affiliation(s)
- Alberto Navalón
- Research Group of Analytical Chemistry and Life Sciences, Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Avda. Fuentenueva s/n, 18071 Granada, Spain
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Vílchez JL, Taoufiki J, Araujo L, Navalón A. Determination of the antibacterial trovafloxacin by differential-pulse adsorptive stripping voltammetry. J Pharm Biomed Anal 2003; 31:465-71. [PMID: 12615233 DOI: 10.1016/s0731-7085(02)00713-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A differential-pulse adsorptive stripping voltammetric method for the determination of trace amounts of the antibacterial trovafloxacin (TRFLX) is proposed. The optimal experimental parameters for the drug assay were: accumulation potential=-0.30 V (vs. Ag/AgCl), accumulation time=120 s, pulse amplitude=50 mV and scan rate=5 mV s(-1) in Britton-Robinson buffer (pH 4.5). The linear concentration range of application was 2.0-20.0 ng ml(-1) of TRFLX, with a relative standard deviation of 3.6% (for a level of 5.0 ng ml(-1)) and a detection limit of 0.6 ng ml(-1). The method was applied to determination of TRFLX in human urine and serum samples. It was validated using HPLC as a reference method. Recovery levels of the method reached 100% in all cases
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Affiliation(s)
- José Luis Vílchez
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Avda. Fuentenueva s/n, E-18071 Granada, Spain
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Marquina MA, Corao GM, Araujo L, Buitrago D, Sosa M. Hyaluronidase inhibitory activity from the polyphenols in the fruit of blackberry (Rubus fruticosus B.). Fitoterapia 2002; 73:727-9. [PMID: 12490243 DOI: 10.1016/s0367-326x(02)00222-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The hyaluronidase inhibitory activity of different fractions obtained from aqueous extract of blackberry fruits was evaluated. We found that only fractions F3 and F7 inhibit the tested enzyme.
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Affiliation(s)
- M A Marquina
- Grupo de Investigación en Cultivos Celulares, Laboratorio de Bioquímica, Facultad de Farmacia, Universidad de los Andes, Mérida 5101, Venezuela
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Navalón A, Prieto A, Araujo L, Vílchez JL. Determination of pyrimethanil and kresoxim-methyl in green groceries by headspace solid-phase microextraction and gas chromatography-mass spectrometry. J Chromatogr A 2002; 975:355-60. [PMID: 12456089 DOI: 10.1016/s0021-9673(02)01220-7] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
A method for determination of trace amounts of the fungicides pyrimethanil and kresoxim-methyl in green groceries, previous headspace solid-phase microextraction (HSSPME), was developed using gas chromatography-mass spectrometry and selected ion monitoring (GC-MS, SIM). Both fungicides were extracted with a fused-silica fiber coated with 85 microm polyacrylate. The effects of pH, ionic strength, extraction and desorption times as well as the extraction temperature were studied. The linear concentration range of application was 12.5-250 ng g(-1) for both compounds, with detection limits of 1.8-2.0 ng g(-1) for pyrimethanil and 2.8-3.1 ng g(-1) for kresoxim-methyl. SPME/GC-MS analysis yielded good reproducibility (RSD between 7.4 and 15.0%). It was applied to check the eventual existence of pyrimethanil and kresoxim-methyl above the detection limits on grapes, strawberries, tomatoes and ketchup samples. The method validation was completed with spiked matrix samples. It can be applied as a monitoring tool in grapes, strawberries, tomatoes and ketchup samples.
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Affiliation(s)
- Alberto Navalón
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Avda. Fuentenueva s/n, E-18071 Granada, Spain
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Vílchez JL, Araujo L, Prieto A, Navalón A. Capillary zone electrophoretic determination of tosufloxacin and trovafloxacin in urine. Chromatographia 2002. [DOI: 10.1007/bf02491944] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Navalón A, Araujo L, Prieto A, Vílchez JL. Determination of grepafloxacin and clinafloxacin by capillary zone electrophoresis. J Chromatogr B Analyt Technol Biomed Life Sci 2002; 772:65-72. [PMID: 12016016 DOI: 10.1016/s1570-0232(02)00050-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and rapid capillary zone electrophoresis determination method with UV detection of grepafloxacin and clinafloxacin has been developed. The separation was performed in 35 mM borate-35 mM phosphate buffer solution (pH 8.6), containing 6% (v/v) of acetonitrile. Analyses were realised using fused-silica capillaries (57 cm length x 75 microm I.D.) and the operating conditions were: 15 kV applied voltage, 30 degrees C and detection at 279 nm. Piromidic acid was used as an internal standard. The linear concentration range of application was 1.0-120.0 microg ml(-1) for both compounds, with a detection limit of 0.2 microg ml(-1) for grepafloxacin and 0.3 microg ml(-1) for clinafloxacin. The analysis yielded good reproducibility (RSD between 3.37 and 1.74%). It was applied to the determination of grepafloxacin and clinafloxacin in human and rat urine samples. The method was validated using HPLC as a reference method. Recovery levels were between 94.5 and 103%.
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Affiliation(s)
- Alberto Navalón
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Avda. Fuentenueva s/n, E-18071 Granada, Spain
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Navalón A, Prieto A, Araujo L, Vílchez JL. Determination of oxadiazon residues by headspace solid-phase microextraction and gas chromatography-mass spectrometry. J Chromatogr A 2002; 946:239-45. [PMID: 11873973 DOI: 10.1016/s0021-9673(01)01523-0] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
A method for the determination of trace amounts of the herbicide oxadiazon was developed using headspace solid-phase microextraction (HS-SPME), gas chromatography-mass spectrometry (GC-MS) and selected ion monitoring. It was applied to determine oxadiazon in ground water, agricultural soil, must, wine and human urine samples. To determine oxadiazon in liquid samples, a response surface methodology generated with a Doehlert design was applied to optimize the HS-SPME conditions using a 100 microm polydimethylsiloxane fibre. For the analysis of soil samples, they were mixed with water and the SPME fibre suspended in the headspace above the slurry. Ground water, human urine and must show linear concentration range of application of 0.5-50 ng ml(-1)' with detection limits < or =0.02 ng ml(-1). HS-SPME-GC-MS analysis yielded good reproducibility (RSD values between 6.5 and 13.5%). The method validation was completed with spiked matrix samples. The developed analytical procedure is solvent free, cost effective and fast.
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Affiliation(s)
- Alberto Navalón
- Department of Analytical Chemistry, University of Granada, Spain
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Navalón A, Prieto A, Araujo L, Vílchez JL. Determination of tebufenpyrad and oxadiazon by solid-phase microextraction and gas chromatography-mass spectrometry. Chromatographia 2001. [DOI: 10.1007/bf02492687] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
A differential-pulse adsorptive stripping voltammetric method for the determination of trace amounts of the antibacterial lomefloxacin is proposed. By using an accumulation potential of -0.30 V and a 2 min accumulation time, the linear concentration range of application was 1.0-10.0 ng ml(-1) of lomefloxacin, with a relative standard deviation of 3.8% (for a level of 5.0 ng ml(-1)) and a detection limit of 0.3 ng ml(-1). The method was applied to determination of lomefloxacin in human urine and serum samples. It was validated using HPLC as a reference method. Recovery levels of the method reached 100% in all cases.
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Affiliation(s)
- J L Vílchez
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, C/. Fuentenueva s/n, E-18071 Granada, Spain
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Abstract
A method for the determination of trace amounts of the insecticide fipronil was developed using solid-phase microextraction-gas chromatography-mass spectrometry and selected ion monitoring. Fipronil was extracted with a fused-silica fiber coated with 85 microm polyacrylate. The effects of pH, ionic strength, sample volume, extraction and desorption times as well as the extraction temperature were studied. Lindane was used as an internal standard. The linear concentration range of application was 0.3-100 ng ml(-1) of fipronil, with a relative standard deviation of 9.5% (for a level of 50 ng ml(-1)) and a detection limit of 0.08 ng ml(-1). The method was applied to check the eventual existence of fipronil above this limit in water and soil samples from Granada (Spain) as well as in human urine samples. The method validation was completed with spiked matrix samples. The method can be applied as a monitoring tool for water, soil and urine, in the investigation of environmental and occupational exposure to fipronil.
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Affiliation(s)
- J L Vílchez
- Department of Analytical Chemistry, University of Granada, Spain
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Abstract
The rapid reticuloendothelial system (RES) uptake of nanoparticles after i.v. injection, especially by the liver, can be reduced and the body distribution can be altered by coating them with non-ionic surfactants. In the present work 2-14C-poly(methyl methacrylate) nanoparticles were coated with poloxamine 908 and polysorbate 80, and the influence of different surfactant concentrations on the body distribution was investigated. These surfactants were chosen because earlier studies showed that poloxamine 908 was very effective in decreasing the liver uptake and keeping the nanoparticles in circulation, whereas polysorbate 80 was the most effective surfactant to direct the particles to organs that do not belong to the RES. Above nanoparticles were injected i.v. to rats and the animals were sacrificed after 30 min. Below a surfactant concentration of 0.1% the nanoparticle preparations behaved like uncoated particles. At a 0.1% concentration a very sudden and significant change in the body distribution occurred with poloxamine 908. The liver concentration decreased from about 75% of the dose to 13% and stayed at this level at higher surfactant concentrations. This decrease was combined with a similar sudden complementary increase in blood and other organ and tissue concentrations. With polysorbate 80 the decrease in liver concentration and increase in the blood and the other organ levels was gradual and became important only above 0.5% surfactant concentration. The results indicate that the type of interaction and the strength of the adsorptive binding to the nanoparticles are different with different surfactants. This in turn leads to different body distribution patterns after i.v. injection of surfactant coated nanoparticles.
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Affiliation(s)
- L Araujo
- Institute of Pharmaceutical Technology, Johann Wolfgang Goethe-University, Biocenter, Frankfurt/Main, Germany
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43
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Prieto A, Ettiene G, Medina D, Buscema I, González G, Araujo L. Analysing organophosphorus pesticides in wines using graphitized carbon black extraction cartridges. Food Addit Contam 1999; 16:57-61. [PMID: 10435073 DOI: 10.1080/026520399284208] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
A quick and simple method was developed to determine the residues of 15 organophosphorus pesticides of different polarity in grape wine, based on liquid-solid extraction with graphitized carbon black cartridges and capillary gas chromatography. Aliquots of diluted wine (10 ml wine + 40 ml deionized water) and 250 mg graphitized carbon black cartridges were used to extract the analytes. The pesticides were eluted with 2 x 0.5 ml acetone and 3 x 2.5 ml ethyl acetate/acetone (80:20). The eluates were then dried with anhydrous sodium sulphate and concentrated to 1 ml under a nitrogen current. After adding triphenylphosphate internal standard (i.s.), this extract was analysed by capillary gas chromatography using a nitrogen-phosphorus detector (GC-NPD). Pesticide recovery percentages at levels of 0.01 and 0.02 microgram/ml were between 74% and 111%, with a 2-13% relative standard deviation interval. The chromatograms of extracts had few co-extracted species peaks, with no analytical interference. Dilution of the grape wine samples removed most of the pigments, thus producing clear extracts. The results indicate that liquid-solid extraction from wine samples using graphitized carbon is fast (25 min per sample), efficient and reproducible for analysing organophosphorus pesticides of different polarity.
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Affiliation(s)
- A Prieto
- Departamento de Química, Facultad de Agronomía, Universidad del Zulia, Maracaibo, Venezuela
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Araujo L, Sheppard M, Löbenberg R, Kreuter J. Uptake of PMMA nanoparticles from the gastrointestinal tract after oral administration to rats: modification of the body distribution after suspension in surfactant solutions and in oil vehicles. Int J Pharm 1999. [DOI: 10.1016/s0378-5173(98)00314-7] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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45
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Boson WL, Gomez RS, Araujo L, Kalapothakis E, Friedman E, De Marco L. Odontogenic myxomas are not associated with activating mutations of the Gs alpha gene. Anticancer Res 1998; 18:4415-7. [PMID: 9891502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
BACKGROUND Myxoma is a rare bone tumor of the mandible and maxillary sinus whose etiology and underlying molecular mechanisms remain unknown. Mutations that inhibit the GTPase activity of the a subunit of the stimulating G protein (Gsa) have been demonstrated in the myocardium of patients with McCune-Albright syndrome. The histopathological similarities shared by cardiac and jaw myxomas coupled with the paucity of reported candidate genes involved in jaw tumor pathogenesis, prompted us to investigate for the presence of gsp mutations in 23 sporadic jaw myxomas. MATERIALS AND METHODS We used the polymerase chain reaction (PCR) to amplify the appropriate genomic fragments, followed by denaturing gradient gel electrophoresis (DGGE) analysis. RESULTS No gsp mutations could be demonstrated in any of tumors analyzed, while the technique has a proven capability to detect these specific mutations. CONCLUSIONS We conclude that mutations of the Gs alpha gene rarely, if ever, are associated with sporadic jaw myxomas tumorigenesis.
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Affiliation(s)
- W L Boson
- Department of Pharmacology, Instituto de Ciencias Biologicas, Belo Horizonte, Brazil
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46
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Löbenberg R, Araujo L, von Briesen H, Rodgers E, Kreuter J. Body distribution of azidothymidine bound to hexyl-cyanoacrylate nanoparticles after i.v. injection to rats. J Control Release 1998; 50:21-30. [PMID: 9685869 DOI: 10.1016/s0168-3659(97)00105-3] [Citation(s) in RCA: 80] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Cells of the reticuloendothelial system (RES e.g. macrophages) play an important role in the immunopathogenesis of AIDS. The objective of the present study was to investigate the possibility of specifically targeting antiviral drugs such as azidothymidine (AZT) to macrophages using nanoparticles as colloidal drug carriers. In a first series of experiments the body distribution of 14C-labelled AZT bound to nanoparticles and a similarly prepared control solution with unbound AZT were studied in rats after intravenous injection. In a second series of experiments polysorbate 80-coated nanoparticles and a solution of AZT in saline were tested. 14C-labelled AZT was bound to nanoparticles using the surfactant bis(2-ethylhexyl) sulphosuccinate sodium (DOSS). The radioactivity in several organs, including those containing large numbers of macrophages, was measured after intravenous injection of the AZT-nanoparticles and the AZT-control solutions. AZT concentrations were up to 18 times higher in organs belonging to the RES if the drug was bound to nanoparticles compared with unbound AZT. These results demonstrate that nanoparticles are a potential drug targeting system for anti-AIDS drugs. The increase in drug concentration at the sites containing abundant macrophages may allow a reduction in dosage to reduce systemic toxicity.
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Affiliation(s)
- R Löbenberg
- Institute of Pharmaceutical Technology, Johann Wolfgang Goethe-University, Frankfurt Main, Germany
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47
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Abstract
Despite its importance and widespread usage, the term mixed dementia, referring to the coexistence of Alzheimer's disease (AD) and vascular dementia (VsD), has been ill-defined and poorly conceptualized. The authors review the use of the term mixed dementia in neuropathological and clinical research. As a result of recent developments in the categorization of dementias, they recommend discarding the term mixed dementia in favor of a more precise terminology based on AD and VsD concurrently meeting established criteria for each diagnosis.
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48
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Brito F, Ascanio J, Mateo S, Hernández C, Araujo L, Gili P, Martín-Zarza P, Domínguez S, Mederos A. Equilibria of chromate(VI) species in acid medium and ab initio studies of these species. Polyhedron 1997. [DOI: 10.1016/s0277-5387(97)00128-9] [Citation(s) in RCA: 101] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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49
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Buscema I, Prieto A, Araujo L, Gonzalez G. Determination of lead and cadmium content in the rice consumed in Maracaibo, Venezuela. Bull Environ Contam Toxicol 1997; 59:94-98. [PMID: 9184047 DOI: 10.1007/s001289900449] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Affiliation(s)
- I Buscema
- Chemistry Department, Faculty of Agronomy, University of Zulia, P. O. Box 6610, Zulia, Maracaibo, Venezuela
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50
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Abstract
This study examines the prognostic value of simultaneous perfusion and function assessment in 412 patients. The exercise perfusion pattern was a stronger predictor of events (mostly acute nonfatal myocardial infarcts) than resting ejection fraction.
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