37 results on '"Maria Olmedo"'
Search Results
2. In situ Chemotaxis Assay in Caenorhabditis elegans (for the Study of Circadian Rhythms)
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Martha Merrow and Maria Olmedo
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Biology (General) ,QH301-705.5 - Abstract
Olfaction is a well-studied sensory mechanism in Caenorhabditis elegans (C. elegans). The nematodes respond to a wide range of chemicals by either attraction, repulsion or a mixture thereof (Bargmann et al., 1993). We have used olfaction to characterize behavioural and molecular circadian rhythms in C. elegans. The circadian clock is a biological oscillator that provides an endogenous temporal structure that approximately matches the 24-hour periodicity in the environment (due to the rotational movement of the Earth). Circadian rhythms are present in most organisms from cyanobacteria to humans and they typically regulate sensory functions among many other processes. Olfaction is under circadian control in many animals (Granados-Fuentes et al., 2006; Granados-Fuentes et al., 2011; Tanoue et al., 2008; Krishnan et al., 1999). This protocol was designed to allow the assessment of olfaction for a population of worms within a short time interval, in the same plate where the worms grew (to avoid washing steps that may disturb the rhythms), and in the presence of food. more...
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- 2014
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Catalog
3. 1040 - EXPERIENCIA CON SIRÓLIMUS EN PACIENTES CON ANOMALÍAS VASCULARES, UN ESTUDIO DESCRIPTIVO
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Fernández, Olaya Huergo, León, Ana Sofía Romero, Gamarra, Ana María Aldea, García, Tatiana Paula Pire, Rodríguez, Minia Campos, Rodríguez, Silvia Manrique, Samperio, María Olmedo, and Ortega, Lucía Ordieres more...
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- 2024
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4. Neglected epiphytism: Accidental epiphytes dominate epiphytic communities on tree ferns in the Atlantic Forest
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Giesta Maria Olmedo Machado, Guilherme Salgado Grittz, and André Luís Gasper
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Ecology, Evolution, Behavior and Systematics - Published
- 2021
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5. Aspergillus endocarditis in the recent years, report of cases of a multicentric national cohort and literature review
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Víctor José González Ramallo, Marta Hernández-Meneses, Claudia González-Rico, Maria Olmedo Samperio, Marta Camici, Mariona Xercavins, Carmen Hidalgo Tenorio, Eduard Quintana, Maricela Valerio, Guillermo Cuervo, Marina Machado, Jesus Vicente Guinea Ortega, Pilar Martín-Dávila, Ana Fernández-Cruz, Sofia De la Villa, David Nicolás, Dolores Sousa, Guillermo Ojeda Burgos, Natividad Benito, Fernando Dominguez, Jose A. Lepe, Jordi Carratala, Jose Lopez-Haldon, and Alicia Galar more...
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Male ,infectious endocarditis ,Antifungal Agents ,Endocarditis ,Aspergillus fumigatus ,Dermatology ,General Medicine ,Middle Aged ,Aspergillus ,antifungal agents ,Aspergillosis ,immunodeficiency ,Humans ,Infectious Diseases - Abstract
(1) To describe the incidence, clinical characteristics, treatment and outcome of Aspergillus Endocarditis (AE) in a nationwide multicentric cohort (GAMES). (2) To compare the AE cases of the GAMES cohort, with the AE cases reported in the literature since 2010. (3) To identify variables related to mortality.We recruited 10 AE cases included in the GAMES cohort (January 2008-December 2018) and 51 cases from the literature published from January 2010 to July 2019.4528 patients with infectious endocarditis (IE) were included in the GAMES cohort, of them 10 (0.2%) were AE. After comparing our 10 cases with the 51 of the literature, no differences were found. Analysing the 61 AE cases together, 55.7% were male, median age 45 years. Their main underlying conditions were as follows: prosthetic valve surgery (34.4%) and solid organ transplant (SOT) (19.7%). Mainly affecting mitral (36.1%) and aortic valve (29.5%). Main isolated species were as follows: Aspergillus fumigatus (47.5%) and Aspergillus flavus (24.6%). Embolisms occurred in 54%. Patients were treated with antifungals (90.2%), heart surgery (85.2%) or both (78.7%). Overall, 52.5% died. A greater mortality was observed in immunosuppressed patients (59.4% vs. 24.1%, OR = 4.09, 95%CI = 1.26-13.19, p = .02), and lower mortality was associated with undergoing cardiac surgery plus azole therapy (28.1% vs. 65.5%, OR = 0.22, 95%CI = 0.07-0.72, p = .01).AE accounts for 0.2% of all IE episodes of a national multicentric cohort, mainly affecting patients with previous valvular surgery or SOT recipients. Mortality remains high especially in immunosuppressed hosts and azole-based treatment combined with surgical resection are related to a better outcome. more...
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- 2022
6. Neglected epiphytism: Accidental epiphytes dominate epiphytic communities on tree ferns in the Atlantic Forest
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Machado, Giesta Maria Olmedo, primary, Grittz, Guilherme Salgado, additional, and Gasper, André Luís, additional
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- 2021
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7. Impact of the COVID-19 pandemic on the diagnosis, management and prognosis of infective endocarditis
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de Alarcón, Arístides, Gutiérrez-Carretero, Encarnación, Luque-Márquez, Rafael, Baz, Blanca Anaya, López-Cortés, Luis Eduardo, Baena, Zaira Palacios, García López, María Victoria, Burgos, Guillermo Ojeda, Ciézar, Antonio Pláta, Reguera Iglesias, José María, Delgado, Ricardo Vivancos, Hidalgo-Tenorio, Carmen, Sequera, Sergio, Ch, Fariñas, María Carmen, González-Rico, Claudia, Gutiérrez-Díez, José Francisco, Cabezón, Gonzalo, López, Javier, San Román, Alberto, Almirante, Benito, Escolà-Vergé, Laura, Fernández, Rubén, Fernández-Hidalgo, Nuria, Gonzàlez-Alujas, Maria Teresa, Maisterra, Olga, Oristrell, Gerard, Pizzi, María Nazarena, Rello, Pau, Ríos, Remedios, Roque, Albert, Sambola, Antonia, Soriano, Toni, Cuervo, Guillermo, Grau, Immaculada, Grillo, Sara, Pruñonosa, Lourdes Mateu, Pedro-Botet Montoya, Maria Lluïsa, Camazón, Nuria Vallejo, Hernández-Meneses, Marta, Miro, Jose M., Quintana, Eduard, Barros, Antonio José, Gurgui, Mercè, Rivera, Alba, Castelo Corral, María Laura, Vidal, Efrén Sánchez, Sousa, Dolores, Pérez-Rodríguez, María Teresa, Sousa, Adrián, Suárez, Milagros, Ribas Fernández, Maria Àngels, Barca, Laura Varela, Bonet, Laura Vidal, García-Álvarez, Lara, Oteo, José A., Baza, Adrián Jerónimo, Olmos, Carmen, Vilacosta, Isidre, Domínguez-Pérez, Laura, López-Medrano, Francisco, Solera Rallo, Javier T., Moya Mur, José Luis, Elorza, Enrique Navas, Mayor, Andrea Kallmeyer, Pello, Ana María, Roca, Luis Nieto, García, María Aguilera, de las Cuevas Torres, Carmen, Béjar, Carmen Sáez, de Castro Campos, Daniel, Domínguez, Fernando, Ramos-Martínez, Antonio, García, Patricia Muñoz, Samperio, María Olmedo, Minero, Maricela Valerio, Vázquez, Elisa García, Torres, Alicia Hernández, Escudero, Encarnación Moral, Goenaga Sánchez, Miguel Ángel, Urkola, Xavier Kortajarena, Jaka, Karlos Reviejo, Bereciartua, Elena, Goikoetxea, Josune, Rodríguez, Regino, and Acevedo, Martín Reyes more...
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- 2021
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8. Trametinib sensitizes KRAS-mutant lung adenocarcinoma tumors to PD-1/PD-L1 axis blockade via Id1 downregulation
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Ander Puyalto, María Rodríguez-Remírez, Inés López, Irati Macaya, Elizabeth Guruceaga, María Olmedo, Anna Vilalta-Lacarra, Connor Welch, Sergio Sandiego, Silvestre Vicent, Karmele Valencia, Alfonso Calvo, Ruben Pio, Luis E. Raez, Christian Rolfo, Daniel Ajona, and Ignacio Gil-Bazo more...
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KRAS-mutant lung adenocarcinoma ,Trametinib ,Id1 ,PD-1 inhibition ,PD-L1 ,Proteasome ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract Background The identification of novel therapeutic strategies to overcome resistance to the MEK inhibitor trametinib in mutant KRAS lung adenocarcinoma (LUAD) is a challenge. This study analyzes the effects of trametinib on Id1 protein, a key factor involved in the KRAS oncogenic pathway, and investigates the role of Id1 in the acquired resistance to trametinib as well as the synergistic anticancer effect of trametinib combined with immunotherapy in KRAS-mutant LUAD. Methods We evaluated the effects of trametinib on KRAS-mutant LUAD by Western blot, RNA-seq and different syngeneic mouse models. Genetic modulation of Id1 expression was performed in KRAS-mutant LUAD cells by lentiviral or retroviral transductions of specific vectors. Cell viability was assessed by cell proliferation and colony formation assays. PD-L1 expression and apoptosis were measured by flow cytometry. The anti-tumor efficacy of the combined treatment with trametinib and PD-1 blockade was investigated in KRAS-mutant LUAD mouse models, and the effects on the tumor immune infiltrate were analyzed by flow cytometry and immunohistochemistry. Results We found that trametinib activates the proteasome-ubiquitin system to downregulate Id1 in KRAS-mutant LUAD tumors. Moreover, we found that Id1 plays a major role in the acquired resistance to trametinib treatment in KRAS-mutant LUAD cells. Using two preclinical syngeneic KRAS-mutant LUAD mouse models, we found that trametinib synergizes with PD-1/PD-L1 blockade to hamper lung cancer progression and increase survival. This anti-tumor activity depended on trametinib-mediated Id1 reduction and was associated with a less immunosuppressive tumor microenvironment and increased PD-L1 expression on tumor cells. Conclusions Our data demonstrate that Id1 expression is involved in the resistance to trametinib and in the synergistic effect of trametinib with anti-PD-1 therapy in KRAS-mutant LUAD tumors. These findings suggest a potential therapeutic approach for immunotherapy-refractory KRAS-mutant lung cancers. Graphical Abstract more...
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- 2024
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9. Sarilumab in patients admitted to hospital with severe or critical COVID-19: a randomised, double-blind, placebo-controlled, phase 3 trial
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François-Xavier Lescure, Hitoshi Honda, Robert A Fowler, Jennifer Sloane Lazar, Genming Shi, Peter Wung, Naimish Patel, Owen Hagino, Ignacio J. Bazzalo, Marcelo M. Casas, Sebastián A. Nuñez, Yael Pere, Carlos M. Ibarrola, Marco A. Solis Aramayo, Maria C. Cuesta, Andrea E. Duarte, Pablo M. Gutierrez Fernandez, Maria A. Iannantuono, Erica A. Miyazaki, Javier P. Silvio, Dario G. Scublinsky, Alessandra Bales, Daniela Catarino, Elie Fiss, Sara Mohrbacher, Victor Sato, Antonio Baylao, Adilson Cavalcante, Francini Correa, Celso A. de Andrade, Juvencio Furtado, Nelson Ribeiro Filho, Valéria Telles, Leopoldo T. Trevelin, Ricardo Vipich, Rodrigo Boldo, Paula Borges, Suzana Lobo, Graziela Luckemeyer, Luana Machado, Maysa B. Alves, Ana C. Iglessias, Marianna M. Lago, Daniel W. Santos, Hugo Chapdelaine, Emilia L. Falcone, Rahima Jamal, Me-Linh Luong, Madeleine Durand, Stephane Doucet, François-Martin Carrier, Bryan A. Coburn, Lorenzo Del Sorbo, Sharon L. Walmsley, Sara Belga, Luke Y. Chen, Allison D. Mah, Theodore Steiner, Alissa J. Wright, J. Hajek, Neill Adhikari, Robert A. Fowler, Nick Daneman, Kosar A. Khwaja, Jason Shahin, Carolina Gonzalez, Rafael Silva, Marcelo Lindh, Gabriel Maluenda, Patricia Fernandez, Maite Oyonarte, Martin Lasso, Alexandre Boyer, Didier Bronnimann, Hoang-Nam Bui, Charles Cazanave, Helene Chaussade, Arnaud Desclaux, Mailys Ducours, Alexandre Duvignaud, Denis Malvy, Lisa Martin, Didier Neau, Duc Nguyen, Thierry Pistone, Gaetane Soubrane-Wirth, Julie Leitao, Clotilde Allavena, Charlotte Biron, Sabelline Bouchez, Benjamin Gaborit, Antoine Gregoire, Paul Le Turnier, Anne-Sophie Lecompte, Raphael Lecomte, Maeva Lefebvre, Francois Raffi, David Boutoille, Pascale H. Morineau, Romain Guéry, Emmanuel Chatelus, Nathalie Dumoussaud, Renaud Felten, Florina Luca, Bernard Goichot, Francis Schneider, Marie-Caroline Taquet, Matthieu Groh, Mathilde Roumier, Mathilde Neuville, Antoine Bachelard, Valentina Isernia, F-Xavier Lescure, Bao-Chau Phung, Anne Rachline, Aurelie Sautereau, Dorothee Vallois, Yves Bleher, Delphine Boucher, Clémentine Coudon, Jean Esnault, Thomas Guimard, Sophie Leautez-Nainville, Dominique Merrien, Marine Morrier, Pauline Motte-Vincent, Romain Gabeff, Hélène Leclerc, Céline Cozic, Romain Decours, Ronan Février, Gwenhael Colin, Sophie Abgrall, Dorothee Vignes, Raluca Sterpu, Mira Kuellmar, Melanie Meersch-Dini, Raphael Weiss, Alexander Zarbock, Christiane Antony, Marc Berger, Thorsten Brenner, Christian Taube, Frank Herbstreit, Sebastian Dolff, Margarethe Konik, Karsten Schmidt, Markus Zettler, Oliver Witzke, Boris Boell, Jorge Garcia Borrega, Philipp Koehler, Thomas Zander, Fabian Dusse, Othman Al-Sawaf, Philipp Köhler, Dennis Eichenauer, Matthias Kochanek, Alexander Shimabukuro-Vornhagen, Sibylle Mellinghoff, Annika Claßen, Jan-Michel Heger, Charlotte Meyer-Schwickerath, Paul Liedgens, Katrin Heindel, Ana Belkin, Asaf Biber, Mayan Gilboa, Itzchak Levy, Vladislav Litachevsky, Galia Rahav, Anat Finesod Wiedner, Tal Zilberman-Daniels, Yonatan Oster, Jacob Strahilevitz, Sigal Sviri, Elena M. Baldissera, Corrado Campochiaro, Giulio Cavalli, Lorenzo Dagna, Giacomo De Luca, Emanuel Della Torre, Alessandro Tomelleri, Davide Bernasconi De Luca, Amedeo F. Capetti, Massimo Coen, Maria V. Cossu, Massimo Galli, Andrea Giacomelli, Guido A. Gubertini, Stefano Rusconi, Giulia J. Burastero, Margherita Digaetano, Giovanni Guaraldi, Marianna Meschiari, Cristina Mussini, Cinzia Puzzolante, Sara Volpi, Marina Aiello, Alarico Ariani, Alfredo A. Chetta, Annalisa Frizzelli, Andrea Ticinesi, Domenico Tuttolomondo, Stefano Aliberti, Francesco B. Blasi, Marta F. Di Pasquale, Sofia Misuraca, Tommaso Pilocane, Edoardo Simonetta, Alessio M. Aghelmo, Claudio Angelini, Enrico Brunetta, Giorgio W. Canonica, Michele Ciccarelli, Sara Dal Farra, Maria De Santis, Sebastian Ferri, Marco Folci, Giacomo M. Guidelli, Enrico M. Heffler, Ferdinando Loiacono, Giacomo Malipiero, Giovanni Paoletti, Rosa Pedale, Francesca A. Puggioni, Francesca Racca, Aurora Zumbo, Morihiko Satou, Tatyana Lisun, Denis Protsenko, Nikolay Rubtsov, Irina Beloglazova, Daria Fomina, Mariana Lysenko, Sofia Serdotetskova, Vitali Firstov, Ivan Gordeev, Ilia Kokorin, Ksenia Komissarova, Nina Lapochkina, Elena Luchinkina, Valentin Malimon, Sevinch Mamedguseyinova, Ksenia Polubatonova, Natalia Suvorova, Jose Arribas, Alberto M. Borobia Perez, Fernando de la Calle Prieto, Juan Carlos Figueira, Rocio Motejano Sanchez, Marta Mora-Rillo, Concepcion Prados Sanchez, Javier Queiruga Parada, Francisco Fernandez Arnalich, Maria Guerro Barrientos, Alejandro Bendala Estrada, Aranzazu Caballero Marcos, Maria E. Garcia Leoni, Rita García-Martínez, Ana María Collado, Patricia Munoz Garcia, Ana Torres do Rego, María V. Villalba García, Almudena Burrillo, Maricela Valerio Minero, Paloma Gijon Vidaurreta, Sonsoles Infante Herrero, Elena Velilla, Marina Machado, Maria Olmedo, Blanca Pinilla, Benito Almirante Gragera, Maria de la Esperanza Cañas Ruano, Sofia Contreras Medina, Alejandro Cortés Herrera, Vicenç Falcó Ferrer, Ricard Ferrer Roca, Xavier Nuvials Casals, Esteve Ribera Pascuet, Paula Suanzes Diez, Pedro Rebollo Castro, Felipe Garcia Alcaide, Alejandro Soriano, Aina Oliver Caldes, Ana González Cordón, Celia Cardozo, Lorena De la Mora Cañizo, Romina Pena López, Sandra Chamorro, Clara Crespillo-Andujar, Rosa Escudero Sanchez, Jesús Fortún-Abete, Begoña Monge-Maillo, Ana Moreno Zamora, Francesca Norman, Matilde Sanchez Conde, Sergio Serrano Villar, Pilar Vizcarra, Lescure, F. -X., Honda, H., Fowler, R. A., Lazar, J. S., Shi, G., Wung, P., Patel, N., Hagino, O., Bazzalo, I. J., Casas, M. M., Nunez, S. A., Pere, Y., Ibarrola, C. M., Solis Aramayo, M. A., Cuesta, M. C., Duarte, A. E., Gutierrez Fernandez, P. M., Iannantuono, M. A., Miyazaki, E. A., Silvio, J. P., Scublinsky, D. G., Bales, A., Catarino, D., Fiss, E., Mohrbacher, S., Sato, V., Baylao, A., Cavalcante, A., Correa, F., de Andrade, C. A., Furtado, J., Ribeiro Filho, N., Telles, V., Trevelin, L. T., Vipich, R., Boldo, R., Borges, P., Lobo, S., Luckemeyer, G., Machado, L., Alves, M. B., Iglessias, A. C., Lago, M. M., Santos, D. W., Chapdelaine, H., Falcone, E. L., Jamal, R., Luong, M. -L., Durand, M., Doucet, S., Carrier, F. -M., Coburn, B. A., Del Sorbo, L., Walmsley, S. L., Belga, S., Chen, L. Y., Mah, A. D., Steiner, T., Wright, A. J., Hajek, J., Adhikari, N., Daneman, N., Khwaja, K. A., Shahin, J., Gonzalez, C., Silva, R., Lindh, M., Maluenda, G., Fernandez, P., Oyonarte, M., Lasso, M., Boyer, A., Bronnimann, D., Bui, H. -N., Cazanave, C., Chaussade, H., Desclaux, A., Ducours, M., Duvignaud, A., Malvy, D., Martin, L., Neau, D., Nguyen, D., Pistone, T., Soubrane-Wirth, G., Leitao, J., Allavena, C., Biron, C., Bouchez, S., Gaborit, B., Gregoire, A., Le Turnier, P., Lecompte, A. -S., Lecomte, R., Lefebvre, M., Raffi, F., Boutoille, D., Morineau, P. H., Guery, R., Chatelus, E., Dumoussaud, N., Felten, R., Luca, F., Goichot, B., Schneider, F., Taquet, M. -C., Groh, M., Roumier, M., Neuville, M., Bachelard, A., Isernia, V., Phung, B. -C., Rachline, A., Sautereau, A., Vallois, D., Bleher, Y., Boucher, D., Coudon, C., Esnault, J., Guimard, T., Leautez-Nainville, S., Merrien, D., Morrier, M., Motte-Vincent, P., Gabeff, R., Leclerc, H., Cozic, C., Decours, R., Fevrier, R., Colin, G., Abgrall, S., Vignes, D., Sterpu, R., Kuellmar, M., Meersch-Dini, M., Weiss, R., Zarbock, A., Antony, C., Berger, M., Brenner, T., Taube, C., Herbstreit, F., Dolff, S., Konik, M., Schmidt, K., Zettler, M., Witzke, O., Boell, B., Garcia Borrega, J., Koehler, P., Zander, T., Dusse, F., Al-Sawaf, O., Kohler, P., Eichenauer, D., Kochanek, M., Shimabukuro-Vornhagen, A., Mellinghoff, S., Classen, A., Heger, J. -M., Meyer-Schwickerath, C., Liedgens, P., Heindel, K., Belkin, A., Biber, A., Gilboa, M., Levy, I., Litachevsky, V., Rahav, G., Finesod Wiedner, A., Zilberman-Daniels, T., Oster, Y., Strahilevitz, J., Sviri, S., Baldissera, E. M., Campochiaro, C., Cavalli, G., Dagna, L., De Luca, Giacomo., Della Torre, E., Tomelleri, A., Bernasconi De Luca, D., Capetti, A. F., Coen, M., Cossu, M. V., Galli, M., Giacomelli, A., Gubertini, G. A., Rusconi, S., Burastero, G. J., Digaetano, M., Guaraldi, G., Meschiari, M., Mussini, C., Puzzolante, C., Volpi, S., Aiello, M., Ariani, A., Chetta, A. A., Frizzelli, A., Ticinesi, A., Tuttolomondo, D., Aliberti, S., Blasi, F. B., Di Pasquale, M. F., Misuraca, S., Pilocane, T., Simonetta, E., Aghelmo, A. M., Angelini, C., Brunetta, E., Canonica, G. W., Ciccarelli, M., Dal Farra, S., De Santis, M., Ferri, S., Folci, M., Guidelli, G. M., Heffler, E. M., Loiacono, F., Malipiero, G., Paoletti, G., Pedale, R., Puggioni, F. A., Racca, F., Zumbo, A., Satou, M., Lisun, T., Protsenko, D., Rubtsov, N., Beloglazova, I., Fomina, D., Lysenko, M., Serdotetskova, S., Firstov, V., Gordeev, I., Kokorin, I., Komissarova, K., Lapochkina, N., Luchinkina, E., Malimon, V., Mamedguseyinova, S., Polubatonova, K., Suvorova, N., Arribas, J., Borobia Perez, A. M., de la Calle Prieto, F., Figueira, J. C., Motejano Sanchez, R., Mora-Rillo, M., Prados Sanchez, C., Queiruga Parada, J., Fernandez Arnalich, F., Guerro Barrientos, M., Bendala Estrada, A., Caballero Marcos, A., Garcia Leoni, M. E., Garcia-Martinez, R., Collado, A. M., Munoz Garcia, P., Torres do Rego, A., Villalba Garcia, M. V., Burrillo, A., Valerio Minero, M., Gijon Vidaurreta, P., Infante Herrero, S., Velilla, E., Machado, M., Olmedo, M., Pinilla, B., Almirante Gragera, B., Canas Ruano, M. D. L. E., Contreras Medina, S., Cortes Herrera, A., Falco Ferrer, V., Ferrer Roca, R., Nuvials Casals, X., Ribera Pascuet, E., Suanzes Diez, P., Rebollo Castro, P., Garcia Alcaide, F., Soriano, A., Oliver Caldes, A., Gonzalez Cordon, A., Cardozo, C., De la Mora Canizo, L., Pena Lopez, R., Chamorro, S., Crespillo-Andujar, C., Escudero Sanchez, R., Fortun-Abete, J., Monge-Maillo, B., Moreno Zamora, A., Norman, F., Sanchez Conde, M., Serrano Villar, S., and Vizcarra, P. more...
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Male ,Pulmonary and Respiratory Medicine ,medicine.medical_specialty ,Critical Care ,International Cooperation ,Population ,Antibodies, Monoclonal, Humanized ,Placebo ,Severity of Illness Index ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,Randomized controlled trial ,law ,Internal medicine ,Intensive care ,Severity of illness ,medicine ,Clinical endpoint ,Humans ,Immunologic Factors ,030212 general & internal medicine ,Mortality ,education ,Respiratory Distress Syndrome ,education.field_of_study ,Dose-Response Relationship, Drug ,SARS-CoV-2 ,business.industry ,Hazard ratio ,COVID-19 ,Articles ,Middle Aged ,Receptors, Interleukin-6 ,Sarilumab ,Treatment Outcome ,030228 respiratory system ,Female ,Drug Monitoring ,Cytokine Release Syndrome ,business - Abstract
Summary Background Elevated proinflammatory cytokines are associated with greater COVID-19 severity. We aimed to assess safety and efficacy of sarilumab, an interleukin-6 receptor inhibitor, in patients with severe (requiring supplemental oxygen by nasal cannula or face mask) or critical (requiring greater supplemental oxygen, mechanical ventilation, or extracorporeal support) COVID-19. Methods We did a 60-day, randomised, double-blind, placebo-controlled, multinational phase 3 trial at 45 hospitals in Argentina, Brazil, Canada, Chile, France, Germany, Israel, Italy, Japan, Russia, and Spain. We included adults (≥18 years) admitted to hospital with laboratory-confirmed SARS-CoV-2 infection and pneumonia, who required oxygen supplementation or intensive care. Patients were randomly assigned (2:2:1 with permuted blocks of five) to receive intravenous sarilumab 400 mg, sarilumab 200 mg, or placebo. Patients, care providers, outcome assessors, and investigators remained masked to assigned intervention throughout the course of the study. The primary endpoint was time to clinical improvement of two or more points (seven point scale ranging from 1 [death] to 7 [discharged from hospital]) in the modified intention-to-treat population. The key secondary endpoint was proportion of patients alive at day 29. Safety outcomes included adverse events and laboratory assessments. This study is registered with ClinicalTrials.gov, NCT04327388; EudraCT, 2020-001162-12; and WHO, U1111-1249-6021. Findings Between March 28 and July 3, 2020, of 431 patients who were screened, 420 patients were randomly assigned and 416 received placebo (n=84 [20%]), sarilumab 200 mg (n=159 [38%]), or sarilumab 400 mg (n=173 [42%]). At day 29, no significant differences were seen in median time to an improvement of two or more points between placebo (12·0 days [95% CI 9·0 to 15·0]) and sarilumab 200 mg (10·0 days [9·0 to 12·0]; hazard ratio [HR] 1·03 [95% CI 0·75 to 1·40]; log-rank p=0·96) or sarilumab 400 mg (10·0 days [9·0 to 13·0]; HR 1·14 [95% CI 0·84 to 1·54]; log-rank p=0·34), or in proportions of patients alive (77 [92%] of 84 patients in the placebo group; 143 [90%] of 159 patients in the sarilumab 200 mg group; difference −1·7 [−9·3 to 5·8]; p=0·63 vs placebo; and 159 [92%] of 173 patients in the sarilumab 400 mg group; difference 0·2 [−6·9 to 7·4]; p=0·85 vs placebo). At day 29, there were numerical, non-significant survival differences between sarilumab 400 mg (88%) and placebo (79%; difference +8·9% [95% CI −7·7 to 25·5]; p=0·25) for patients who had critical disease. No unexpected safety signals were seen. The rates of treatment-emergent adverse events were 65% (55 of 84) in the placebo group, 65% (103 of 159) in the sarilumab 200 mg group, and 70% (121 of 173) in the sarilumab 400 mg group, and of those leading to death 11% (nine of 84) were in the placebo group, 11% (17 of 159) were in the sarilumab 200 mg group, and 10% (18 of 173) were in the sarilumab 400 mg group. Interpretation This trial did not show efficacy of sarilumab in patients admitted to hospital with COVID-19 and receiving supplemental oxygen. Adequately powered trials of targeted immunomodulatory therapies assessing survival as a primary endpoint are suggested in patients with critical COVID-19. Funding Sanofi and Regeneron Pharmaceuticals. more...
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- 2021
10. P059 - DETECCIÓN INCIDENTAL CON PET/TC CON [18F]FDG DE LESIONES GASTROINTESTINALES CLÍNICAMENTE RELEVANTES EN PACIENTES CON PATOLOGÍA TUMORAL PULMONAR EN ESTUDIO
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del Barco Diez Canseco, Luis Martin, Calvente, María Calderón, Huatuco, Nila Angélica Canchumanya, Chiva, Ana María Olmedo, Monterde, Vanesa Aina, and Barrao, Leticia de la Cueva
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- 2023
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11. Contemporary use of cefazolin for MSSA infective endocarditis: analysis of a national prospective cohort
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Laura Herrera-Hidalgo, Patricia Muñoz, Ana Álvarez-Uría, David Alonso-Menchén, Rafael Luque-Marquez, Encarnación Gutiérrez-Carretero, María Del Carmen Fariñas, Jose Maria Miró, Miguel Angel Goenaga, Luis Eduardo López-Cortés, Basilio Angulo-Lara, Lucia Boix-Palop, Arístides de Alarcón, Fernando Fernández Sánchez, José Mª García de Lomas, Gabriel Rosas, Javier de la Torre Lima, Elena Bereciartua, María José Blanco Vidal, Roberto Blanco, María Victoria Boado, Marta Campaña Lázaro, Alejandro Crespo, Laura Guio Carrión, Mikel Del Álamo Martínez de Lagos, Gorane Euba Ugarte, Ane Josune Goikoetxea, Marta Ibarrola Hierro, José Ramón Iruretagoyena, Josu Irurzun Zuazabal, Leire López-Soria, Miguel Montejo, Javier Nieto, David Rodrigo, Regino Rodríguez, Yolanda Vitoria, Roberto Voces, Mª Victoria García López, Radka Ivanova Georgieva, Guillermo Ojeda, Isabel Rodríguez Bailón, Josefa Ruiz Morales, Ignacio Álvarez Rodríguez, Harkaitz Azkune Galparsoro, Elisa Berritu Boronat, Mª Jesús Bustinduy Odriozola, Cristina del Bosque Martín, Tomás Echeverría, Alberto Eizaguirre Yarza, Ana Fuentes, Miguel Ángel Goenaga, Muskilda Goyeneche del Río, Ángela Granda Bauza, José Antonio Iribarren, Xabier Kortajarena Urkola, José Ignacio Pérez-Moreiras López, Ainhoa Rengel Jiménez, Karlos Reviejo, Alberto Sáez Berbejillo, Elou Sánchez Haza, Rosa Sebastián Alda, Itziar Solla Ruiz, Irati Unamuno Ugartemendia, Diego Vicente Anza, Iñaki Villanueva Benito, Mar Zabalo Arrieta, Rafael Carrasco, Vicente Climent, Patricio Llamas, Esperanza Merino, Joaquín Plazas, Sergio Reus, Alberto Bouzas, Brais Castelo, José Cuenca, Laura Gutiérrez, Lucía Ramos, María Rodríguez Mayo, Joaquín Manuel Serrano, Dolores Sousa Regueiro, Francisco Javier Martínez, Mª del Mar Alonso, Beatriz Castro, Teresa Delgado Melian, Javier Fernández Sarabia, Dácil García Rosado, Julia González González, Juan Lacalzada, Lissete Lorenzo de la Peña, Alina Pérez Ramírez, Pablo Prada Arrondo, Fermín Rodríguez Moreno, Antonio Plata Ciezar, José Mª Reguera Iglesias, Víctor Asensi Álvarez, Carlos Costas, Jesús de la Hera, Jonnathan Fernández Suárez, Lisardo Iglesias Fraile, Víctor León Arguero, José López Menéndez, Pilar Mencia Bajo, Carlos Morales, Alfonso Moreno Torrico, Carmen Palomo, Begoña Paya Martínez, Ángeles Rodríguez Esteban, Raquel Rodríguez García, Mauricio Telenti Asensio, Manuel Almela, Juan Ambrosioni, Manuel Azqueta, Mercè Brunet, Marta Bodro, Ramón Cartañá, Guillermo Cuervo, Carlos Falces, Mariana J Fernández-Pittol, Guillermina Fita, David Fuster, Cristina García de la Mària, Delia García-Pares, Marta Hernández-Meneses, Jaume Llopis Pérez, Francesc Marco, José M. Miró, Asunción Moreno, David Nicolás, Salvador Ninot, Eduardo Quintana, Carlos Paré, Daniel Pereda, Juan M. Pericás, José L. Pomar, José Ramírez, Mercè Roque, Irene Rovira, Elena Sandoval, Marta Sitges, Dolors Soy, Adrián Téllez, José M. Tolosana, Bárbara Vidal, Jordi Vila, Iván Adán, David Alonso, Juan Carlos Alonso, Javier Bermejo, Emilio Bouza, Gregorio Cuerpo Caballero, Antonia Delgado Montero, Agustín Estévez, Ramón Fortuny Ribas, Esther Gargallo, Mª Eugenia García Leoni, Ana González Mansilla, Francisco Javier González Moraga, Víctor González Ramallo, Martha Kestler Hernández, Amaia Mari Hualde, Marina Machado, Mercedes Marín, Manuel Martínez-Sellés, Rosa Melero, Diego Monzón, María Olmedo, Álvaro Pedraz, Blanca Pinilla, Ángel Pinto, Cristina Rincón, Hugo Rodríguez-Abella, Marta Rodríguez-Créixems, Eduardo Sánchez-Pérez, Antonio Segado, Neera Toledo, Maricela Valerio, Pilar Vázquez, Eduardo Verde Moreno, Sofía de la Villa, Isabel Antorrena, Belén Loeches, Mar Moreno, Ulises Ramírez, Verónica Rial Bastón, María Romero, Sandra Rosillo, Jesús Agüero Balbín, Cristina Amado Fernández, Carlos Armiñanzas Castillo, Francisco Arnaiz de las Revillas, Manuel Cobo Belaustegui, María Carmen Fariñas, Concepción Fariñas-Álvarez, Marta Fernández Sampedro, Iván García, Claudia González Rico, Laura Gutiérrez-Fernández, Manuel Gutiérrez-Cuadra, José Gutiérrez Díez, Marcos Pajarón, José Antonio Parra, Ramón Teira, Jesús Zarauza, Jorge Calderón Parra, Marta Cobo, Fernando Domínguez, Pablo García Pavía, Ana Fernández Cruz, Antonio Ramos-Martínez, Isabel Sánchez Romero, Tomasa Centella, José Manuel Hermida, José Luis Moya, Pilar Martín-Dávila, Enrique Navas, Enrique Oliva, Alejandro del Río, Jorge Rodríguez-Roda Stuart, Soledad Ruiz, Carmen Hidalgo Tenorio, Sergio Sequera, Manuel Almendro Delia, Omar Araji, José Miguel Barquero, Román Calvo Jambrina, Marina de Cueto, Juan Gálvez Acebal, Irene Méndez, Isabel Morales, José Antonio Lepe, José López-Haldón, Rafael Luque-Márquez, Guillermo Marín, Antonio Ortiz-Carrellán, Eladio Sánchez-Domínguez, Luis Javier Alonso, Pedro Azcárate, José Manuel Azcona Gutiérrez, José Ramón Blanco, Estíbaliz Corral Armas, Lara García-Álvarez, José Antonio Oteo, Antonio Barros Membrilla, Antonino Ginel Iglesias, Sara Grillo, Rubén Leta Petracca, Joaquín López-Contreras, María Alba Rivera Martínez, M. Álvarez, A.L. Fernández, Amparo Martínez, A. Prieto, Benito Regueiro, E. Tijeira, Marino Vega, Amaia Aguirre Quiñonero, Ángela Alonso Miñambres, Juan Carlos Gainzarain Arana, Sara González de Alaiza Ortega, Miguel Ángel Morán Rodríguez, Anai Moreno Rodríguez, Zuriñe Ortiz de Zárate, José Joaquín Portu Zapirain, Ester Sáez de Adana Arroniz, Daisy Carolina Sorto Sánchez, Sánchez-Porto Antonio, Úbeda Iglesias Alejandro, José Mª Arribas Leal, Elisa García Vázquez, Alicia Hernández Torres, Ana Blázquez, Gonzalo de la Morena Valenzuela, Ángel Alonso, Javier Aramburu, Felicitas Elena Calvo, Paola Tarabini-Castellani, Eva Heredero Gálvez, Carolina Maicas Bellido, José Largo Pau, Mª Antonia Sepúlveda, Pilar Toledano Sierra, Sadaf Zafar Iqbal-Mirza, Eva Cascales Alcolea, Ivan Keituqwa Yañez, Julián Navarro Martínez, Ana Peláez Ballesta, Eduardo Moreno Escobar, Alejandro Peña Monje, Valme Sánchez Cabrera, David Vinuesa García, María Arrizabalaga Asenjo, Carmen Cifuentes Luna, Juana Núñez Morcillo, Mª Cruz Pérez Seco, Aroa Villoslada Gelabert, Carmen Aured Guallar, Nuria Fernández Abad, Pilar García Mangas, Marta Matamala Adell, Mª Pilar Palacián Ruiz, Juan Carlos Porres, Begoña Alcaraz Vidal, María Jesús Del Amor Espín, Francisco Buendía, Roberto Jiménez Sánchez, Rosario Mármol, Francisco Martínez, Antonio Meseguer, Beatriz Pérez, Leticia Risco, Zoser Saura, Vanina Silva, Mª Belén Villmarín, Mª Ángels Ribas Blanco, Enrique Ruiz de Gopegui Bordes, Laura Vidal Bonet, Miquel Vives Borràs, Mª Carmen Bellón Munera, Elena Escribano Garaizabal, Antonia Tercero Martínez, Juan Carlos Segura Luque, Cristina Badía, Lucía Boix Palop, Mariona Xercavins, Sónia Ibars, Xerach Bosch, Eloy Gómez Nebreda, Ibalia Horcajada Herrera, Irene Menduiña Gallego, Imanol Pulido, Héctor Marrero Santiago, Isabel de Miguel Martínez, Elena Pisos Álamo, Daniel San Román Sánchez, Jorge Boan Pérez, Eva Mª Aguilar Blanco, Mercedes Catalán González, María Angélica Corres Peiretti, Andrea Eixerés Esteve, Laura Domínguez Pérez, Santiago de Cossío Tejido, Francisco Galván Román, José Antonio García Robles, Francisco López Medrano, Mª Jesús López Gude, Mª Ángeles Orellana Miguel, Patrick Pilkington, Yolanda Revilla Ostalaza, Juan Ruiz Morales, Sebastián Ruiz Solís, Ana Sabín Collado, Marcos Sánchez Fernández, Javier Solera Rallo, Jorge Solís Martín, Francesc Escrihuela-Vidal, Jordi Carratalà, Inmaculada Grau, Carmen Ardanuy, Dámaris Berbel, José Carlos Sánchez Salado, Oriol Alegre, Alejandro Ruiz Majoral, Fabrizio Sbraga, Arnau Blasco, Laura Gracia Sánchez, Iván Sánchez-Rodríguez, Gonzalo Aldamiz, Beatriz Álvarez, Marina Bernal Palacios, Alfonso Cabello Úbeda, Ricardo Fernández Roblas, Rafael Hernández, Victoria Andrea Hortigüela Martín, Andrea Kallmeyer, Cristina Landaeta Kancev, Marta Martín, Miguel Morante Ruiz, Miguel Ángel Navas Lobato, Ana María Pello, Laura Prieto, Marta Tomás Mallebrera, Laura Varela, Mireia de la Peña Triguero, Ruth Esther Figueroa Cerón, Lara Ruiz Gómez, Mireia Ble, Juan Pablo Horcajada Gallego, Antonio José Ginel, Inmaculada López, Alexandra Mas, Antoni Mestres, Lluís Molina, Ramón Serrat, Núria Ribas, Francisca Sánchez, Ana Silverio, Marina Suárez, Luisa Sorlí, Lluís Recasens, Manuel Taurón, María Fernández Regueras, María Ángeles Mantecón Vallejo, José Ángel Pérez Rivera, Nuria Sánchez Mata, Antonia Calvo Cano, Miguel Fajardo Olivares, María Victoria Millán Núñez, and Agustín Muñoz Sanz more...
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Infective endocarditis ,Methicillin-susceptible Staphylococcus aureus ,Cefazolin ,Antistaphylococcal penicillin ,Infectious and parasitic diseases ,RC109-216 - Abstract
Objectives: This study aimed to assess the real use of cefazolin for methicillin-susceptible Staphylococcus aureus (MSSA) infective endocarditis (IE) in the Spanish National Endocarditis Database (GAMES) and to compare it with antistaphylococcal penicillin (ASP). Methods: Prospective cohort study with retrospective analysis of a cohort of MSSA IE treated with cloxacillin and/or cefazolin. Outcomes assessed were relapse; intra-hospital, overall, and endocarditis-related mortality; and adverse events. Risk of renal toxicity with each treatment was evaluated separately. Results: We included 631 IE episodes caused by MSSA treated with cloxacillin and/or cefazolin. Antibiotic treatment was cloxacillin, cefazolin, or both in 537 (85%), 57 (9%), and 37 (6%) episodes, respectively. Patients treated with cefazolin had significantly higher rates of comorbidities (median Charlson Index 7, P more...
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- 2023
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12. Neglected epiphytism: Accidental epiphytes dominate epiphytic communities on tree ferns in the Atlantic Forest.
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Machado, Giesta Maria Olmedo, Grittz, Guilherme Salgado, and de Gasper, André Luís
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EPIPHYTES ,TROPICAL forests ,FERNS ,HABITAT selection ,SPECIES diversity ,TREES - Abstract
Copyright of Biotropica is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) more...
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- 2022
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13. Real-World Experience with Bezlotoxumab for Prevention of Recurrence of Clostridioides difficile Infection
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María Jesús Rodríguez Hernández, Rosa Escudero-Sánchez, Oriol Martín Segarra, Carmen Sáez Bejar, Francisco López-Medrano, Sergio García Fernández, Belén Gutiérrez-Gutiérrez, Esperanza Merino de Lucas, Maria Olmedo Samperio, Jorge Fernández-Fradejas, Angela Valencia Alijo, Beatriz Díaz-Pollán, Javier Cobo Reinoso, Angela Cano Yuste, Dolors Rodríguez-Pardo, Antonio Ramos-Martínez, Carlos Armiñanzas Castillo, María Ruiz-Ruigómez, J. Torre-Cisneros, and UAM. Departamento de Medicina more...
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medicine.medical_specialty ,recurrence ,Medicina ,Population ,lcsh:Medicine ,Article ,Clostridioides difficile ,C. difficile infection ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Medicine ,030212 general & internal medicine ,bezlotoxumab ,Medical prescription ,Adverse effect ,education ,0303 health sciences ,education.field_of_study ,030306 microbiology ,business.industry ,lcsh:R ,Clostridium difficile ,General Medicine ,Clinical trial ,Bezlotoxumab ,Cohort ,business ,Clostridioides ,Cohort study - Abstract
Bezlotoxumab is marketed for the prevention of recurrent Clostridioides difficile infection (rCDI). Its high cost could be determining its prescription to a different population than that represented in clinical trials. The objective of the study was to verify the effectiveness and safety of bezlotoxumab in preventing rCDI and to investigate factors related to bezlotoxumab failure in the real world. A retrospective, multicentre cohort study of patients treated with bezlotoxumab in Spain was conducted. We compared the characteristics of cohort patients with those of patients treated with bezlotoxumab in the pivotal MODIFY trials. We assessed recurrence rates 12 weeks after completion of treatment against C. difficile, and we analysed the factors associated with bezlotoxumab failure. Ninety-one patients were included in the study. The cohort presented with more risk factors for rCDI than the patients included in the MODIFY trials. Thirteen (14.2%) developed rCDI at 12 weeks of follow-up, and rCDI rates were numerically higher in patients with two or more previous episodes (25%) than in those who had fewer than two previous episodes of C. difficile infection (CDI) (10.4%), p = 0.09. There were no adverse effects attributable to bezlotoxumab. Despite being used in a more compromised population than that represented in clinical trials, we confirm the effectiveness of bezlotoxumab for the prevention of rCDI. more...
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- 2020
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14. Studies of Oxide Layers Grown at 260°C on A106 B Carbon Steel in Aqueous Medium with Ethanolamine or Morpholine
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Ana Maria Olmedo and Roberto Bordoni
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Materials science ,Carbon steel ,Hydrazine ,Inorganic chemistry ,Oxide ,engineering.material ,Autoclave ,Corrosion ,chemistry.chemical_compound ,Ammonia ,Ethanolamine ,chemistry ,Morpholine ,engineering - Abstract
The water chemistry of the secondary coolant in the majority of Nuclear Power Plants is controlled by AVT (All Volatile Treatment), wherein volatile amines are used to maintain the alkaline pH required for minimizing the corrosion of structural materials which one of them is Carbon Steel. In this treatment, ammonia, morpholine and ethanolamine are commonly used as conditioning reagents. In this context, experiments were carried out by exposing carbon steel A106 B samples in a simulated secondary coolant in order to study the nature of the oxide films. The tests were performed in a static autoclave at 260°C using two media: I) hydrazine + morpholine and II) hydrazine + ethanolamine during different exposure periods up to ≈1020 h. The oxide film characterization was mainly studied using Scanning Electron Microscopy and X-ray diffraction. A chemical descaling procedure was used to obtain the material weight loss (W) of samples, the adherent and released oxide. The XRD analyses, for all exposures studied, showed that magnetite was the corrosion product formed in the films grown in both media. The material weight loss, after descaling, could be fitted by a law of the type W = ktn, up to 1020 h of exposure tested, resulting in n = 0.42, k = 6.24 for films grown in medium I) and n = 0.39, k = 6.08 for films grown in medium II) respectively (W is in mg/dm2 and t in h). The higher corrosion product release measured in the medium with morpholine could be important in power plant operation. more...
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- 2015
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15. Microbiome profile and calprotectin levels as markers of risk of recurrent Clostridioides difficile infection
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Silvia Vázquez-Cuesta, Nuria Lozano García, Ana I. Fernández, María Olmedo, Martha Kestler, Luis Alcalá, Mercedes Marín, Javier Bermejo, Francisco Fernández-Avilés Díaz, Patricia Muñoz, Emilio Bouza, and Elena Reigadas more...
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calprotectin ,biomarkers ,C. difficile ,microbiome ,R-CDI ,16S rRNA ,Microbiology ,QR1-502 - Abstract
IntroductionClostridioides difficile infection (CDI) is the main cause of nosocomial diarrhoea in developed countries. Recurrent CDI (R-CDI), which affects 20%-30% of patients and significantly increases hospital stay and associated costs, is a key challenge. The main objective of this study was to explore the role of the microbiome and calprotectin levels as predictive biomarkers of R-CDI.MethodsWe prospectively (2019-2021) included patients with a primary episode of CDI. Clinical data and faecal samples were collected. The microbiome was analysed by sequencing the hypervariable V4 region of the 16S rRNA gene on an Illumina Miseq platform.ResultsWe enrolled 200 patients with primary CDI, of whom 54 developed R-CDI and 146 did not. We analysed 200 primary samples and found that Fusobacterium increased in abundance, while Collinsella, Senegalimassilia, Prevotella and Ruminococcus decreased in patients with recurrent versus non-recurrent disease. Elevated calprotectin levels correlated significantly with R-CDI (p=0.01). We built a risk index for R-CDI, including as prognostic factors age, sex, immunosuppression, toxin B amplification cycle, creatinine levels and faecal calprotectin levels (overall accuracy of 79%).DiscussionCalprotectin levels and abundance of microbial genera such as Fusobacterium and Prevotella in primary episodes could be useful as early markers of R-CDI. We propose a readily available model for prediction of R-CDI that can be applied at the initial CDI episode. The use of this tool could help to better tailor treatments according to the risk of R-CDI. more...
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- 2023
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16. Using circadian entrainment to find cryptic clocks
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Zheng, Eelderink-Chen, Maria, Olmedo, Jasper, Bosman, and Martha, Merrow
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Research Design ,Circadian Clocks ,Animals ,Humans ,Saccharomyces cerevisiae ,Caenorhabditis elegans - Abstract
Three properties are most often attributed to the circadian clock: a ca. 24-h free-running rhythm, temperature compensation of the circadian rhythm, and its entrainment to zeitgeber cycles. Relatively few experiments, however, are performed under entrainment conditions. Rather, most chronobiology protocols concern constant conditions. We have turned this paradigm around and used entrainment to study the circadian clock in organisms where a free-running rhythm is weak or lacking. We describe two examples therein: Caenorhabditis elegans and Saccharomyces cerevisiae. By probing the system with zeitgeber cycles that have various structures and amplitudes, we can demonstrate the establishment of systematic entrained phase angles in these organisms. We conclude that entrainment can be utilized to discover hitherto unknown circadian clocks and we discuss the implications of using entrainment more broadly, even in model systems that show robust free-running rhythms. more...
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- 2015
17. Increase in the patient wait-time and delays in the clinic workflow post-implementation of the electronic health record
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Maria Olmedo, Meyyammai Narayanan, Colleen Jernigan, Saroj Vadhan-Raj, Xiao Zhou, Mary Daniel, Shawn J Janarthanan, and Shreyaskumar Patel
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Cancer Research ,medicine.medical_specialty ,Post implementation ,business.industry ,Health records ,medicine.disease ,Wait time ,Workflow ,Oncology ,Electronic health record ,Sample size determination ,Family medicine ,medicine ,In patient ,Medical emergency ,Exam room ,business - Abstract
194 Background: Growth in patient (pt) volume and limited clinic capacity can lead to long wait-times and pt/provider dissatisfaction. We have previously shown that the room pooling model, can reduce pt wait-time in the exam room, improve room utilization, and pt/providers satisfaction (ASCO 2016, Abstract 6595). One of the important goals of adopting electronic health records (EHR) is also to increase the clinical efficiencies, productivity and quality of care. The purpose of this study was to evaluate the impact of implementation of EHR on pt wait-time in the exam room and satisfaction in the Sarcoma Center. Methods: The time studies and pt and provider wait-time satisfaction surveys were carried out over 2 weeks prior to (baseline) and 6 months after the implementation of EHR. All times of when pts, mid-level providers, and doctors (MD) entered and exited the exam rooms were collected for a total sample size of 578 pts (300 before, 278 after) seen during the clinic hours and analyzed using JMP and SAS. Results: The proportion of pts seen within 30 minutes (Min) by MDs from the time pts roomed into exam room decreased by about 32% [from 53% (148/280) to 36% (94/259), p = 0.0001] post implementation of EHR. The median time for pts in the exam room waiting for MD increased (p = 0.0001) from 30 min (range: 0-126 min) to 40 min (range: 0-121 min). Although, the pt satisfaction did not significantly change [increase from 8% (23/278) to 12% (31/267) in the number of pts that were not satisfied to little-satisfied, and decrease from 92% (255/278) to 88% (236/267) in pts that were moderately to very-satisfied], the number of times MD had to wait for an open exam room increased from 8% (5/65) to 24% (14/59, p = 0.01). The delays to see MDs were associated with longer time spent with the nurse (from median 4 to 7 min), followed by delays in seeing Mid-level provider (from 11 to 18 min). Conclusions: These findings indicate that in the initial stages of implementation of EHR, the increase in pt wait-time and reduced clinical efficiencies can be related to the learning of and adapting to the new system. Attempts targeted to the areas of delays (such as training and redesigning workflow) may reduce the pt wait-time and improve the clinical efficiency. more...
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- 2017
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18. Deviations from temporal scaling support a stage-specific regulation for C. elegans postembryonic development
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Alejandro Mata-Cabana, Francisco Javier Romero-Expósito, Mirjam Geibel, Francine Amaral Piubeli, Martha Merrow, and María Olmedo
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Development ,Timers ,Developmental rate ,Scaling ,Temperature ,Arrhenius ,Biology (General) ,QH301-705.5 - Abstract
Abstract Background After embryonic development, Caenorhabditis elegans progress through for larval stages, each of them finishing with molting. The repetitive nature of C. elegans postembryonic development is considered an oscillatory process, a concept that has gained traction from regulation by a circadian clock gene homologue. Nevertheless, each larval stage has a defined duration and entails specific events. Since the overall duration of development is controlled by numerous factors, we have asked whether different rate-limiting interventions impact all stages equally. Results We have measured the duration of each stage of development for over 2500 larvae, under varied environmental conditions known to alter overall developmental rate. We applied changes in temperature and in the quantity and quality of nutrition and analysed the effect of genetically reduced insulin signalling. Our results show that the distinct developmental stages respond differently to these perturbations. The changes in the duration of specific larval stages seem to depend on stage-specific events. Furthermore, our high-resolution measurement of the effect of temperature on the stage-specific duration of development has unveiled novel features of temperature dependence in C. elegans postembryonic development. Conclusions Altogether, our results show that multiple factors fine tune developmental timing, impacting larval stages independently. Further understanding of the regulation of this process will allow modelling the mechanisms that control developmental timing. more...
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- 2022
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19. Characterization of the gut microbiome of patients with Clostridioides difficile infection, patients with non–C. difficile diarrhea, and C. difficile–colonized patients
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Silvia Vázquez-Cuesta, Laura Villar, Nuria Lozano García, Ana I. Fernández, María Olmedo, Luis Alcalá, Mercedes Marín, Patricia Muñoz, Emilio Bouza, and Elena Reigadas
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CDI ,C. difficile ,microbiome ,R-CDI ,16S rRNA ,Microbiology ,QR1-502 - Abstract
IntroductionClostridioides difficile infection (CDI) is the main cause of nosocomial diarrhea in developed countries. A key challenge in CDI is the lack of objective methods to ensure more accurate diagnosis, especially when differentiating between true infection and colonization/diarrhea of other causes. The main objective of this study was to explore the role of the microbiome as a predictive biomarker of CDI.MethodsBetween 2018 and 2021, we prospectively included patients with CDI, recurrent CDI (R-CDI), non-CDI diarrhea (NO-CDI), colonization by C. difficile, and healthy individuals. Clinical data and fecal samples were collected. The microbiome was analyzed by sequencing the hypervariable V4 region of the 16S rRNA gene on an Illumina Miseq platform. The mothur bioinformatic pipeline was followed for pre-processing of raw data, and mothur and R were used for data analysis.ResultsDuring the study period, 753 samples from 657 patients were analyzed. Of these, 247 were from patients with CDI, 43 were from patients colonized with C. difficile, 63 were from healthy individuals, 324 were from NOCDI, and 76 were from R-CDI. We found significant differences across the groups in alpha and beta diversity and in taxonomic abundance. We identified various genera as the most significant biomarkers for CDI (Bacteroides, Proteus, Paraprevotella, Robinsoniella), R-CDI (Veillonella, Fusobacterium, Lactobacillus, Clostridium sensu stricto I), and colonization by C. difficile (Parabacteroides, Faecalicoccus, Flavonifractor, Clostridium XVIII).DiscussionWe observed differences in microbiome patterns between healthy individuals, colonized patients, CDI, R-CDI, and NOCDI diarrhea. We identified possible microbiome biomarkers that could prove useful in the diagnosis of true CDI infections. Further studies are warranted. more...
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- 2023
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20. IgG anti-RBD levels during 8-month follow-up post-vaccination with BNT162b2 and mRNA-1273 vaccines in healthcare workers: A one-center study
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Sergio Gil-Manso, Roberto Alonso, Pilar Catalán, Ignacio Sánchez-Arcilla, Marco Marzola, Rafael Correa-Rocha, Marjorie Pion, Patricia Muñoz, Gregorio Marañón Microbiology-ID COVID-19 Study Group, Luis Alcalá, Teresa Aldámiz, Beatriz Álvarez, Ana Álvarez-Uría, Alexi Arias, Elena Bermúdez, Emilio Bouza, Sergio Buenesta do-Serrano, Almudena Burillo, Raquel Carrillo, Emilia Cercenado, Alejandro Cobos, Cristina Díez, Pilar Escribano, Agustín Estévez, Chiara Fanciulli, Alicia Galar, Mª Dolores García, Darío García de Viedma, Paloma Gijón, Adolfo González, Helmuth Guillén, Jesús Guinea, Marta Herranz, Álvaro Irigoyen, Laura Vanessa Haces, Martha Kestler, Juan Carlos López, Carmen Narcisa Losada, Marina Machado, Mercedes Marín, Pablo Martín-Rabadán, Andrea Molero-Salinas, Pedro Montilla, Patricia Muñoz, María Olmedo, Belén Padilla, Rosalía Palomino-Cabrera, María Palomo, María Jesús Pérez-Granda, Daniel Peñas-Utrilla, Laura Pérez-Lago, Leire Pérez, Elena Reigadas, Cristina Rincón, Belén Rodríguez, Sara Rodríguez, Cristina Rodríguez-Grande, Adriana Rojas, María Jesús Ruiz-Serrano, Carlos Sánchez, Mar Sánchez, Amadeo Sanz-Pérez, Julia Serrano, Francisco Tejerina, Maricela Valerio, Mª Cristina Veintimilla, Lara Vesperinas, Teresa Vicente, and Sofíade la Villa more...
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COVID-19 ,mRNA vaccines ,antibodies ,humoral response ,IgG Anti-S ,Microbiology ,QR1-502 - Abstract
IntroductionSince the COVID-19 outbreak, specific mRNA-based anti-SARS-CoV-2 vaccines have been developed and distributed worldwide. Because this is the first time that mRNA vaccines have been used, there are several questions regarding their capacity to confer immunity and the durability of the specific anti-SARS-CoV-2 response. Therefore, the objective of this study was to recruit a large cohort of healthcare workers from the Gregorio Marañón Hospital vaccinated with the mRNA-1273 or BNT126b2 vaccines and to follow-up on IgG anti-RBD levels at 8 months post-vaccination.MethodsWe recruited 4,970 volunteers and measured IgG anti-RBD antibodies on days 30 and 240 post-vaccination.ResultsWe observed that both vaccines induced high levels of antibodies on day 30, while a drastic wane was observed on day 240, where mRNA-1273 vaccinated induced higher levels than BNT162b2. Stratifying by vaccine type, age, gender, and comorbidities, we identified that older mRNA-1273-vaccinated volunteers had higher antibody levels than the younger volunteers, contrary to what was observed in the BNT162b2-vaccinated volunteers.DiscussionIn conclusion, we observed that mRNA-1273 has a higher capacity to induce a humoral response than BNT162b2 and that age is a factor in the specific response. more...
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- 2022
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21. Successful treatment of retinal angiomatous proliferation by photodynamic therapy
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Maximino Abraldes, Francisco Gómez-Ulla, Maria Olmedo, and Maribel Fernandez
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medicine.medical_specialty ,Visual acuity ,genetic structures ,Fundus Oculi ,medicine.medical_treatment ,Visual Acuity ,Photodynamic therapy ,Retina ,chemistry.chemical_compound ,Macular Degeneration ,Ophthalmology ,medicine ,Humans ,Fluorescein Angiography ,Macular edema ,Aged ,Photosensitizing Agents ,medicine.diagnostic_test ,business.industry ,fungi ,Retinal ,Fluorescein angiography ,medicine.disease ,eye diseases ,Surgery ,medicine.anatomical_structure ,chemistry ,Photochemotherapy ,Angiography ,Female ,sense organs ,medicine.symptom ,business ,Indocyanine green ,Tomography, Optical Coherence ,Optometry ,Follow-Up Studies - Abstract
Purpose. The purpose of this study is to describe a patient with retinal angiomatous proliferation (RAP) treated successfully by photodynamic therapy. Methods. A 74-year-old white woman was referred to our clinic for evaluation as a result of progressive decrease of vision in the right eye. Visual acuity was 20/100 in the affected right eye. The findings of fluorescein and indocyanine green angiography were consistent with a diagnosis of RAP, and cystoid macular edema was also revealed by optical coherence tomography (OCT). Photodynamic therapy (PDT) was carried out because of visual deterioration and localization of the RAP. Results. The RAP was treated with PDT, and an improvement in visual acuity to 20/60 was noted 4 months after treatment and 20/40 after 6 months. The resolution of the lesion was confirmed by fluorescein angiography, indocyanine green angiography, and OCT. Conclusions. Photodynamic therapy can be effective for the treatment of RAP when it is associated with visual acuity decrease and is located near the fovea. more...
- Published
- 2006
22. Clostridioides difficile infection epidemiology and clinical characteristics in COVID-19 pandemic
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Silvia Vázquez-Cuesta, María Olmedo, Elena Reigadas, Luis Alcalá, Mercedes Marín, Patricia Muñoz, and Emilio Bouza
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CDI ,COVID-19 ,SARS-CoV-2 ,C. difficile ,nosocomial infection ,hospital-acquired ,Medicine (General) ,R5-920 - Abstract
Information on Clostridioides difficile infection (CDI) in patients with COVID-19 is scarce and points to an overall decrease of episodes during the pandemic. This situation results paradoxical, as COVID-19 patients had long periods of hospital stay and high use of antibiotics. We conducted a retrospective study from January 1st 2019 to December 31st 2020 comparing the incidence of hospital-acquired episodes of CDI (HA-CDI) among patients with and without COVID-19 admitted to our institution. During the study period, there were 47,048 patient admissions in 2019, 35,662 admissions of patients without COVID-19 in 2020 and 6,763 of COVID-19 patients. There were 68 episodes of HA-CDI in COVID-19 patients (14.75/10,000 days), 159 in 2020-non-COVID-19 patients (5.54/10,000 days) and 238 in 2019 (6.80/10,000 days). Comparison of HA-CDI in COVID-19 and non-COVID-19 patients indicates it occurs more frequently, in terms of CDI disease severity, COVID-19 does not seem to have a negative impact. more...
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- 2022
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23. Nosocomial Infections in Adult Patients Supported by Extracorporeal Membrane Oxygenation in a Cardiac Intensive Care Unit
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Simone Mornese Pinna, Iago Sousa Casasnovas, María Olmedo, Marina Machado, Miriam Juàrez Fernández, Carolina Devesa-Cordero, Alicia Galar, Ana Alvarez-Uria, Francisco Fernández-Avilés, Jorge García Carreño, Manuel Martínez-Sellés, Francesco Giuseppe De Rosa, Silvia Corcione, Emilio Bouza, Patricia Muñoz, and Maricela Valerio more...
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ECMO ,venoarterial extracorporeal membrane oxygenation ,nosocomial infections ,cardiac intensive care unit ,cardiovascular infections ,Biology (General) ,QH301-705.5 - Abstract
The use of venoarterial (VA) extracorporeal membrane oxygenation therapy (ECMO) in patients admitted to cardiac intensive care units (CICU) has increased. Data regarding infections in this population are scarce. In this retrospective study, we analyzed the risk factors, outcome, and predictors of in-hospital mortality due to nosocomial infections in patients with ECMO admitted to a single coronary intensive care unit between July 2013 and March 2019 treated with VA-ECMO for >48 h. From 69 patients treated with VA-ECMO >48 h, (median age 58 years), 29 (42.0%) patients developed 34 episodes of infections with an infection rate of 0.92/1000 ECMO days. The most frequent were ventilator-associated pneumonia (57.6%), tracheobronchitis (9.1%), bloodstream infections (9.1%), skin and soft tissue infections (9.1%), and cytomegalovirus reactivation (9.1%). In-hospital mortality was 47.8%, but no association with nosocomial infections was found (p = 0.75). The number of days on ECMO (OR 1.14, 95% CI 1.01–1.30, p = 0.029) and noninfectious complications were higher in the infected patients (OR: 3.8 95% CI = 1.05–14.1). A higher baseline creatinine value (OR: 8.2 95% CI = 1.12–60.2) and higher blood lactate level at 4 h after ECMO initiation (OR: 2.0 95% CI = 1.23–3.29) were significant and independent risk factors for mortality. Conclusions: Nosocomial infections in medical patients treated with VA-ECMO are very frequent, mostly Gram-negative respiratory infections. Preventive measures could play an important role for these patients. more...
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- 2023
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24. HYPOVITAMINOSIS D AND HIP FRACTURE IN OSTEOPOROSIS: FRAX INDEX.
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Romero, Cristina Díez, primary, Romero, Itxasne Cabezón Estévanez Paloma Díez, additional, Rodríguez, Miguel Angel Artacho, additional, Valdeperez, María Torrea, additional, Samperio, Maria Olmedo, additional, Fanciulli, Chiara, additional, Tamayo, Isabel Perez, additional, Carvaja, Carnen Cuenca, additional, Rubio, Jose Santiago Filgueira, additional, and Alcade, Laura Cano, additional more...
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- 2011
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25. HYPOVITAMINOSIS D AND HIP FRACTURE IN OSTEOPOROSIS: FRAX INDEX
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María Torrea Valdeperez, Jose Santiago Filgueira Rubio, Isabel Perez Tamayo, Maria Olmedo Samperio, Carnen Cuenca Carvaja, Cristina Diez Romero, Laura Cano Alcade, Chiara Fanciulli, Itxasne Cabezón Estévanez Paloma Díez Romero, and Miguel Angel Artacho Rodríguez more...
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Hip fracture ,medicine.medical_specialty ,FRAX ,Hypovitaminosis ,Index (economics) ,business.industry ,Osteoporosis ,Internal Medicine ,medicine ,Physical therapy ,medicine.disease ,business - Published
- 2011
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26. ZOLEDRONIC ACID (ZA) THERAPY IN POST-MENOPAUSAL OSTEOPOROTIC WOMEN
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Miguel Angel Artacho, Itxasne Cabezón, Paloma Diez, Cristina Diez, Chiara Fanciulli, Jose Santiago Filgueira, Maria Olmedo, and Maria Torrea
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Oncology ,medicine.medical_specialty ,Zoledronic acid ,business.industry ,Internal medicine ,Internal Medicine ,medicine ,Post menopausal ,business ,medicine.drug - Published
- 2011
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27. ACUTE PYELONEPHRITIS: MICROBIOLOGY AND ANTIMICROBIAL THERAPY
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Jose Santiago Filgueira Rubio, Isabel Perez Tamayo, Paloma Diez Romero, Itxasne Cabezon Estevanez, María Torrea Valdeperez, Cristina Diez Romero, Chiara Fanciulli, Maria Olmedo Samperio, Miguel Angel Artacho Rodríguez, and Jesús Millán Núñez-Cortés more...
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medicine.medical_specialty ,business.industry ,Internal Medicine ,medicine ,Intensive care medicine ,Antimicrobial ,business ,Microbiology - Published
- 2011
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28. Overlapping of Independent SARS-CoV-2 Nosocomial Transmissions in a Complex Outbreak
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Laura Pérez-Lago, Helena Martínez-Lozano, Jose Antonio Pajares-Díaz, Arantxa Díaz-Gómez, Marina Machado, Pedro J. Sola-Campoy, Marta Herranz, Maricela Valerio, María Olmedo, Julia Suárez-González, Víctor Quesada-Cubo, Maria del Mar Gómez-Ruiz, Nieves López-Fresneña, Ignacio Sánchez-Arcilla, Iñaki Comas, Fernando González-Candelas, Sonia García de San José, Rafael Bañares, Pilar Catalán, Patricia Muñoz, and Darío García de Viedma, more...
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Microbiology ,QR1-502 - Abstract
We report a complex epidemiological scenario of a nosocomial COVID-19 outbreak in the second wave, based on WGS analysis. Initially, standard epidemiological findings led to the assumption of a homogeneous outbreak caused by a single SARS-CoV-2 strain. more...
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- 2021
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29. Social Chemical Communication Determines Recovery From L1 Arrest via DAF-16 Activation
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Alejandro Mata-Cabana, Laura Gómez-Delgado, Francisco J. Romero-Expósito, María J. Rodríguez-Palero, Marta Artal-Sanz, and María Olmedo
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development ,insulin signaling ,trehalose ,developmental arrest ,recovery ,Biology (General) ,QH301-705.5 - Abstract
In a population, chemical communication determines the response of animals to changing environmental conditions, what leads to an enhanced resistance against stressors. In response to starvation, the nematode Caenorhabditis elegans arrest post-embryonic development at the first larval stage (L1) right after hatching. As arrested L1 larvae, C. elegans become more resistant to diverse stresses, allowing them to survive for several weeks expecting to encounter more favorable conditions. L1 arrested at high densities display an enhanced resistance to starvation, dependent on soluble compounds released beyond hatching and the first day of arrest. Here, we show that this chemical communication also influences recovery after prolonged periods in L1 arrest. Animals at high density recovered faster than animals at low density. We found that the density effect on survival depends on the final effector of the insulin signaling pathway, the transcription factor DAF-16. Moreover, DAF-16 activation was higher at high density, consistent with a lower expression of the insulin-like peptide DAF-28 in the neurons. The improved recovery of animals after arrest at high density depended on soluble compounds present in the media of arrested L1s. In an effort to find the nature of these compounds, we investigated the disaccharide trehalose as putative signaling molecule, since its production is enhanced during L1 arrest and it is able to activate DAF-16. We detected the presence of trehalose in the medium of arrested L1 larvae at a low concentration. The addition of this concentration of trehalose to animals arrested at low density was enough to rescue DAF-28 production and DAF-16 activation to the levels of animals arrested at high density. However, despite activating DAF-16, trehalose was not capable of reversing survival and recovery phenotypes, suggesting the participation of additional signaling molecules. With all, here we describe a molecular mechanism underlying social communication that allows C. elegans to maintain arrested L1 larvae ready to quickly recover as soon as they encounter nutrient sources. more...
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- 2020
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30. ESTUDIO RETROSPECTIVO DE INFECCIONES NOSOCOMIALES EN PACIENTES CON ECMO EN UNA UNIDAD CORONARIA
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Maricela Valerio, Simone Mornese, Iago Sousa-Casasnovas, Alicia Galar, María Olmedo, Carolina Devesa-Cordero, Ana Álvarez Uría, Manuel Martínez Sellés, Francisco Fernandez-Avilés, and Patricia Muñoz
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Medicine ,Surgery ,RD1-811 - Published
- 2020
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31. Combined flow cytometry and high-throughput image analysis for the study of essential genes in Caenorhabditis elegans
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Blanca Hernando-Rodríguez, Annmary Paul Erinjeri, María Jesús Rodríguez-Palero, Val Millar, Sara González-Hernández, María Olmedo, Bettina Schulze, Ralf Baumeister, Manuel J. Muñoz, Peter Askjaer, and Marta Artal-Sanz more...
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C. elegans ,Essential genes ,Worm sorting ,Image analysis ,High-content ,High-throughput ,Biology (General) ,QH301-705.5 - Abstract
Abstract Background Advances in automated image-based microscopy platforms coupled with high-throughput liquid workflows have facilitated the design of large-scale screens utilising multicellular model organisms such as Caenorhabditis elegans to identify genetic interactions, therapeutic drugs or disease modifiers. However, the analysis of essential genes has lagged behind because lethal or sterile mutations pose a bottleneck for high-throughput approaches, and a systematic way to analyse genetic interactions of essential genes in multicellular organisms has been lacking. Results In C. elegans, non-conditional lethal mutations can be maintained in heterozygosity using chromosome balancers, commonly expressing green fluorescent protein (GFP) in the pharynx. However, gene expression or function is typically monitored by the use of fluorescent reporters marked with the same fluorophore, presenting a challenge to sort worm populations of interest, particularly at early larval stages. Here, we develop a sorting strategy capable of selecting homozygous mutants carrying a GFP stress reporter from GFP-balanced animals at the second larval stage. Because sorting is not completely error-free, we develop an automated high-throughput image analysis protocol that identifies and discards animals carrying the chromosome balancer. We demonstrate the experimental usefulness of combining sorting of homozygous lethal mutants and automated image analysis in a functional genomic RNA interference (RNAi) screen for genes that genetically interact with mitochondrial prohibitin (PHB). Lack of PHB results in embryonic lethality, while homozygous PHB deletion mutants develop into sterile adults due to maternal contribution and strongly induce the mitochondrial unfolded protein response (UPRmt). In a chromosome-wide RNAi screen for C. elegans genes having human orthologues, we uncover both known and new PHB genetic interactors affecting the UPRmt and growth. Conclusions The method presented here allows the study of balanced lethal mutations in a high-throughput manner. It can be easily adapted depending on the user’s requirements and should serve as a useful resource for the C. elegans community for probing new biological aspects of essential nematode genes as well as the generation of more comprehensive genetic networks. more...
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- 2018
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32. ACUTE PYELONEPHRITIS: MICROBIOLOGY AND ANTIMICROBIAL THERAPY
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Rodríguez, Miguel Ángel Artacho, Romero, Cristina Díez, Estévanez, Itxasne Cabezón, Romero, Paloma Díez, Valdepérez, María Torrea, Samperio, María Olmedo, Fanciulli, Chiara, Tamayo, Isabel Pérez, Núñez-Cortés, Jesús Millán, and Rubio, José Santiago Filgueira more...
- Published
- 2011
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33. Utility of 1,3 β-d-Glucan Assay for Guidance in Antifungal Stewardship Programs for Oncologic Patients and Solid Organ Transplant Recipients
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Marina Machado, Esther Chamorro de Vega, María del Carmen Martínez-Jiménez, Carmen Guadalupe Rodríguez-González, Antonio Vena, Raquel Navarro, María Isabel Zamora-Cintas, Caroline Agnelli, María Olmedo, Alicia Galar, Jesús Guinea, Ana Fernández-Cruz, Roberto Alonso, Emilio Bouza, Patricia Muñoz, and Maricela Valerio more...
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antifungal stewardship ,antifungals ,biomarkers ,invasive fungal infections ,solid organ transplant ,oncologic patients ,Biology (General) ,QH301-705.5 - Abstract
The implementation of 1,3 β-d-glucan (BDG) has been proposed as a diagnostic tool in antifungal stewardship programs (ASPs). We aimed to analyze the influence of serum BDG in an ASP for oncologic patients and solid organ transplant (SOT) recipients. We conducted a pre–post study. In the initial period (PRE), the ASP was based on bedside advice, and this was complemented with BDG in the post-period (POST). Performance parameters of the BDG assay were determined. Antifungal (AF) use adequacy was evaluated using a point score. Clinical outcomes and AF costs were also compared before and after the intervention. Overall, 85 patients were included in the PRE-period and 112 in the POST-period. Probable or proven fungal infections were similar in both groups (54.1% vs. 57.1%; p = 0.67). The determination of BDG contributed to improved management in 75 of 112 patients (66.9%). The AF adequacy score improved in the POST-period (mean 7.75 vs. 9.29; p < 0.001). Median days of empiric AF treatment was reduced in the POST-period (9 vs. 5 days, p = 0.04). All-cause mortality (44.7% vs. 34.8%; p = 0.16) was similar in both periods. The cost of AF treatments was reduced in the POST-period with a difference of 779.6 €/patient. Our data suggest that the use of BDG was a cost-effective strategy that contributed to safely improving the results of an ASP for SOT and oncologic patients. more...
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- 2021
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34. Osseous cystic echinococcosis: A case series study at a referral unit in Spain.
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Begoña Monge-Maillo, María Olmedo Samperio, José Antonio Pérez-Molina, Francesca Norman, Carla Ruth Mejía, Sandra Chamorro Tojeiro, and Rogelio López-Vélez
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Arctic medicine. Tropical medicine ,RC955-962 ,Public aspects of medicine ,RA1-1270 - Abstract
BACKGROUND:Cystic echinococcosis (CE) is present in all continents, except for the Antarctica. Characteristically, CE lesions are found in the liver and the lungs, but virtually any part of the body may be affected (the spleen, kidneys, heart, central nervous system, bones, among others). It is estimated that the incidence of bone involvement in CE is 0.5% to 4%. METHODOLOGY:A retrospective study was performed of patients with osseous CE treated at the National Reference Unit of Tropical Diseases of the Ramon y Cajal Hospital, Madrid, Spain, between 1989 and December 2017. Epidemiological, clinical, diagnostic and therapeutic data of patients with long-term follow-up were collected. MAIN FINDINGS:During the study period, of the 104 patients with CE, 27 exhibited bone involvement (26%). The bones most frequently affected were the spine, followed by the ribs, pelvis, femur, tibia and the scapula. The most common symptom was pain followed by medullar syndrome and pathologic fracture. In total, 81.5% of patients underwent surgery for osseous CE at least once. As many as 96% received albendazol either in (mostly long-term) monotherapy or in combination with praziquantel. CONCLUSIONS:The diagnosis and management of osseous CE is challenging. In many cases osseous CE should be considered a chronic disease and should be managed on a case-by-case basis. Lifelong follow-up should be performed for potential recurrence and sequels. more...
- Published
- 2019
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35. Unraveling the Parablechnum cordatum (Blechnaceae: Polypodiopsida) complex puzzle
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Giesta Maria Olmedo Machado and André Luís de Gasper
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ferns ,systematics ,species complex ,spores ,taxonomy ,Botany ,QK1-989 - Abstract
Abstract Parablechnum cordatum (Blechnaceae) exhibits significant morphological variability, with many species considered as its synonyms, and is treated as a species complex by several authors. In this study, we offer a comprehensive revision of the taxon and an updated circumscription of Parablechnum usterianum, a species frequently confused with P. cordatum, leading to a refined understanding of species delimitation. Our analysis, based on morphological and spore micro- and ultrastructural examination of Brazilian specimens within the complex, recognizes three distinct species: Parablechnum cordatum s.s., Parablechnum brasiliense, and Parablechnum regnellianum, the latter being treated as a synonym but now resurrected with a new combination. Here, we present a key to the species, along with detailed descriptions, diagnostic images, distribution maps, lectotypifications, synonymies, and nomenclatural clarifications. more...
- Published
- 2024
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36. A relationship between carotenoid accumulation and the distribution of species of the fungus Neurospora in Spain.
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Eva M Luque, Gabriel Gutiérrez, Laura Navarro-Sampedro, María Olmedo, Julio Rodríguez-Romero, Carmen Ruger-Herreros, Víctor G Tagua, and Luis M Corrochano
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Medicine ,Science - Abstract
The ascomycete fungus Neurospora is present in many parts of the world, in particular in tropical and subtropical areas, where it is found growing on recently burned vegetation. We have sampled the Neurospora population across Spain. The sampling sites were located in the region of Galicia (northwestern corner of the Iberian peninsula), the province of Cáceres, the city of Seville, and the two major islands of the Canary Islands archipelago (Tenerife and Gran Canaria, west coast of Africa). The sites covered a latitude interval between 27.88° and 42.74°. We have identified wild-type strains of N. discreta, N. tetrasperma, N. crassa, and N. sitophila and the frequency of each species varied from site to site. It has been shown that after exposure to light Neurospora accumulates the orange carotenoid neurosporaxanthin, presumably for protection from UV radiation. We have found that each Neurospora species accumulates a different amount of carotenoids after exposure to light, but these differences did not correlate with the expression of the carotenogenic genes al-1 or al-2. The accumulation of carotenoids in Neurospora shows a correlation with latitude, as Neurospora strains isolated from lower latitudes accumulate more carotenoids than strains isolated from higher latitudes. Since regions of low latitude receive high UV irradiation we propose that the increased carotenoid accumulation may protect Neurospora from high UV exposure. In support of this hypothesis, we have found that N. crassa, the species that accumulates more carotenoids, is more resistant to UV radiation than N. discreta or N. tetrasperma. The photoprotection provided by carotenoids and the capability to accumulate different amounts of carotenoids may be responsible, at least in part, for the distribution of Neurospora species that we have observed across a range of latitudes. more...
- Published
- 2012
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37. A new record of green spore in Lomaria (Blechnaceae, Polypodiospida)
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André Luís de Gasper, Giesta Maria Olmedo Machado, Mariana Hartmann Karkow, and Luís Adriano Funez
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Blechnum ,chlorophyllous spore ,chromosome count ,ferns ,Biology (General) ,QH301-705.5 ,Botany ,QK1-989 - Abstract
Abstract Fern spores play a vital role in dispersal. The unique features of spores, such as size, thickness, and ornamentation can aid in taxonomic decisions and division of groups. Moreover, certain species of ferns possess green spores containing chlorophyll, an uncommon feature that can reinforce the evidence of relatedness within a specific group. Lomaria spannagelii is a Neotropical species endemic to Brazil, and, even though green spores have been reported in its sister species, Lomaria nuda and Lomaria discolor, the presence of these spores has not yet been investigated in L. spannagelii. In this study, we investigated the morphology of L. spannagelii spores and sporangia, and, additionally, we determined the chromosome count of the species. Our results showed that the analyzed species has green spores, a characteristic shared with L. nuda and L. discolor, and has 2n = 64 chromosomes. This discovery provides new insights into this fern genus and emphasizes the importance of spore color and chromosome count in systematic and evolutionary studies of ferns. more...
- Published
- 2023
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