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Gato E, Rodiño-Janeiro BK, Gude MJ, Fernández-Cuenca F, Pascual Á, Fernández A, Pérez A, Bou G. Diagnostic tool for surveillance, detection and monitoring of the high-risk clone K. pneumoniae ST15. J Hosp Infect 2023; 142:18-25. [PMID: 37802237 DOI: 10.1016/j.jhin.2023.09.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/13/2023] [Accepted: 09/17/2023] [Indexed: 10/08/2023]
Abstract
BACKGROUND The global spread of Klebsiella pneumoniae ST15, causing multi-continental outbreaks, contributes to the movement of resistance genes between clones increasing the antimicrobial resistance crisis. The genomic traits providing it with the ability to outcompete other bacteria and cause epidemics remain unclear. AIM To identify the specific genomic traits of K. pneumoniae ST15 to develop a diagnostic test. METHODS An outbreak caused by K. pneumoniae occurred in Hospital A Coruña, Spain. Antimicrobial susceptibility analysis and molecular typing (PGFE and MLST) were performed. One isolate of each sequence type was selected for whole-genome sequencing analysis. Comparative analysis of genomes was performed using RAST. BLASTn was used to evaluate the presence of the fhaC and kpiD genes. Two hundred and ninety-four K. pneumoniae from a Spanish nationwide collection were analysed by PCR. FINDINGS Genotyping showed that 87.5% of the isolates tested belonged to a clone with a unique PFGE pattern which corresponded to ST15. Comparative genomic analysis of the different STs enabled us to determine the specific genomic traits of K. pneumoniae ST15. Two adherence-related systems (Kpi and KpFhaB/FhaC) were specific markers of this clone. Multiplex-PCR analysis with kpiD and fhaC oligonucleotides revealed that K. pneumoniae ST15 is specifically detected with a sensitivity of 100% and a specificity of 97.76%. The PCR results showed 100% concordance with the MLST and whole-genome sequencing data. CONCLUSION K. pneumoniae ST15 possesses specific genomic traits that could favour its dissemination. They could be used as targets to detect K. pneumoniae ST15 with high sensitivity and specificity.
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Affiliation(s)
- E Gato
- Institute for Biomedical Research of A Coruña (INIBIC), A Coruña, Spain; Carlos III Health Institute (ISCIII), Madrid, Spain
| | | | - M J Gude
- University Hospital Lucus Augusti (HULA), Lugo, Spain
| | - F Fernández-Cuenca
- University Hospital Virgen Macarena, Seville, Spain; Institute of Biomedicine of Sevilla, Seville, Spain; University of Sevilla, Seville, Spain
| | - Á Pascual
- University Hospital Virgen Macarena, Seville, Spain; Institute of Biomedicine of Sevilla, Seville, Spain; University of Sevilla, Seville, Spain; CIBER de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
| | - A Fernández
- University Hospital of A Coruña (HUAC), A Coruña, Spain
| | - A Pérez
- Institute for Biomedical Research of A Coruña (INIBIC), A Coruña, Spain; Carlos III Health Institute (ISCIII), Madrid, Spain.
| | - G Bou
- University Hospital of A Coruña (HUAC), A Coruña, Spain; CIBER de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
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Carrasco R, Lapayese F, de la Peña A, Medrano M, Mota F, Soleto A, Pereira A, Pastor C, Rodríguez C, Rincón E, Cabrera S, Fernández A, Ramos F, Queral V, Letellier L, Guern FL, Piqueras J. Tests on the prototype of the Optical Hinge for the Wide Angle Viewing System to ITER gamma radiation conditions. Fusion Engineering and Design 2023. [DOI: 10.1016/j.fusengdes.2023.113680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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Fernández A, Martínez-Fernández J, Medrano M, Cabrera S, Le Guern F, Rodríguez E. Electromagnetic analysis of the Interspace Afocal Module of the Wide Angle Viewing System diagnostic for ITER. Fusion Engineering and Design 2023. [DOI: 10.1016/j.fusengdes.2023.113592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
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Fernández A, Araujo FP, Guerra Y, Castro-Lopes S, Matilla-Arias J, de Lima IS, Silva-Filho EC, Osajima JA, Guerrero F, Peña-Garcia R. Synthesis of coral-like structures of Pr–Yb co-doped YIG: Structural, optical, magnetic and antimicrobial properties. J RARE EARTH 2023. [DOI: 10.1016/j.jre.2023.03.006] [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: 03/18/2023]
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Pereira A, Medrano M, Leon-Gutierrez E, Pastor C, Mota F, Vila R, Rodriguez C, Carrasco R, Lapayese F, de la Peña A, Soleto A, Rincón E, Cabrera S, Queral V, Fernández A, López-Heredero R, Torquemada C, Rodrigo T, Gómez L, Belenguer T, Vermeeren L, Leysen W, Piqueras J, Le-Guern F, Alén-Cordero C. Radiation effects in optical coatings for ITER diagnostics. Fusion Engineering and Design 2023. [DOI: 10.1016/j.fusengdes.2023.113438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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6
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Fernández A, Muñoz-La Rivera F, Mora-Serrano J. Virtual reality training for occupational risk prevention: application case in geotechnical drilling works. Int J CMEM 2023. [DOI: 10.2495/cmem-v11-n1-92-106] [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: 02/25/2023] Open
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Aguilar-Garrido P, Velasco M, Hernández Sánchez M, Navarro Aguadero MÁ, Malaney P, Aitken MJL, Zhang X, Young KH, Duan R, Hu P, Kornblau S, Fernández A, Ortiz A, Otero-Sobrino Á, de Andrés PJ, Megías D, Pérez M, Gómez J, Mata G, Martínez López J, Post S, Gallardo M. S104: RBPS DYSREGULATION CAUSE HYPER-NUCLEOLI AND RIBOSOME GAIN-OF-FUNCTION DRIVING BONE MARROW FAILURE. Hemasphere 2022. [DOI: 10.1097/01.hs9.0000843312.19737.2a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Escribano P, Pérez-Granda MJ, Alonso R, Catalán P, Alcalá L, Serra-Rexarch JA, Osuna L, Fernández A, Conti AP, Castellanos A, Guinea J, Muñoz P, Bouza E. High incidence of COVID-19 at nursing homes in Madrid, Spain, despite preventive measures. Rev Esp Quimioter 2022; 35:288-292. [PMID: 35397483 PMCID: PMC9134887 DOI: 10.37201/req/008.2022] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To assess the impact of COVID-19 at nine nursing homes in Madrid, Spain, during the first wave of COVID-19 infection and lockdown period when preventive measures were taken to avoid transmission among residents. METHODS Nine hundred forty-two residents and 846 staff members from nine nursing homes participated in the study (April 18 to June 20, 2020). All participants were tested for SARS-CoV-2 in the nasopharynx by PCR and for IgG antibodies detection. Microbiological status at sampling was defined as active infection (positive PCR ± presence of antibodies), past infection (negative PCR + presence of antibodies), or naïve participants (negative PCR + absence of antibodies). RESULTS Laboratory results helped classify the residents as having active infection (n=224; 23.8%), past infection (n=462; 49.1%), or being naïve (n=256; 27.1%); staff members were actively infected (n=127; 15.1%), had had a past infection (n=290; 34.2%), or were naïve (n=429; 50.7%). Overall, the percentage of participants with COVID-19 was significantly higher in residents than in staff members (72.8% vs 49.2%; P=0.001). The clinical situation of residents vs staff at sampling was as follows: acute manifestations compatible with COVID-19 (7.3% vs 3.9%; P<0.01) and no manifestations of infection (92.7% vs 96.0%; P<0.01). A large proportion of both asymptomatic and symptomatic residents (69.4% vs 86.6%; P=0.015) had positive PCR results (mostly alongside positive IgG determinations). CONCLUSIONS COVID-19 affects 75% of the residents in nursing homes in Madrid. The high impact in these settings, despite the strict restrictions adopted during the lockdown, demonstrates the ability of SARS-CoV-2 to cause outbreaks.
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Affiliation(s)
- P Escribano
- Pilar Escribano, Servicio de Microbiología Clínica y Enfermedades Infecciosas, Hospital General Universitario Gregorio Marañón, C/ Dr. Esquerdo, 46, 28007 Madrid, Spain.
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Abouzian S, Fernández A, López-Mora D, Fuentes F, Sizova M, Carrió I. 18F-fluorocholine uptake in Paget’s disease in two patients with prostate cancer. Rev Esp Med Nucl Imagen Mol 2022; 41:108-109. [DOI: 10.1016/j.remnie.2021.03.008] [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: 11/24/2022]
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González-Castro A, Cuenca Fito E, Fernández A, Escudero Acha P, Rodríguez Borregán JC, Peñasco Y. Impact of corticosteroid therapy on the survival of critical COVID-19 patients admitted into an intensive care unit. Revista Española de Anestesiología y Reanimación (English Edition) 2022; 69:120-121. [PMID: 35168919 PMCID: PMC8818356 DOI: 10.1016/j.redare.2021.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 02/15/2021] [Indexed: 12/15/2022]
Affiliation(s)
- A González-Castro
- Servicio de Medicina Intensiva, Hospital Universitario Marqués de Valdecilla, Santander, Spain.
| | - E Cuenca Fito
- Servicio de Medicina Intensiva, Hospital Universitario Marqués de Valdecilla, Santander, Spain
| | - A Fernández
- Servicio de Medicina Intensiva, Hospital Universitario Marqués de Valdecilla, Santander, Spain
| | - P Escudero Acha
- Servicio de Medicina Intensiva, Hospital Universitario Marqués de Valdecilla, Santander, Spain
| | - J C Rodríguez Borregán
- Servicio de Medicina Intensiva, Hospital Universitario Marqués de Valdecilla, Santander, Spain
| | - Y Peñasco
- Servicio de Medicina Intensiva, Hospital Universitario Marqués de Valdecilla, Santander, Spain
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López-Mora DA, Fernández A, Duch J, Carrio I. Follow-up 18F-FDG PET/CT in an oncological asymptomatic COVID-19 patient. Rev Esp Med Nucl Imagen Mol 2021; 40:374-375. [PMID: 34752372 PMCID: PMC7936538 DOI: 10.1016/j.remnie.2021.03.005] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Affiliation(s)
- D A López-Mora
- Servicio de Medicina Nuclear, Hospital de la Santa Creu i Sant Pau, Universidad Autónoma de Barcelona, Barcelona, Spain.
| | - A Fernández
- Servicio de Medicina Nuclear, Hospital de la Santa Creu i Sant Pau, Universidad Autónoma de Barcelona, Barcelona, Spain
| | - J Duch
- Servicio de Medicina Nuclear, Hospital de la Santa Creu i Sant Pau, Universidad Autónoma de Barcelona, Barcelona, Spain
| | - I Carrio
- Servicio de Medicina Nuclear, Hospital de la Santa Creu i Sant Pau, Universidad Autónoma de Barcelona, Barcelona, Spain
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Fdez-Sánchez J, Pascual-Triana J, Fernández A, Herrera F. Learning interpretable multi-class models by means of hierarchical decomposition: Threshold Control for Nested Dichotomies. Neurocomputing 2021. [DOI: 10.1016/j.neucom.2021.07.097] [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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Fradera J, Alberto P, Moya G, Bernad A, Catalán D, Fernández A, Garrido C. Pre-conceptual design of a self-shutdown communicating vessels system for a small molten salt reactor. ANN NUCL ENERGY 2021. [DOI: 10.1016/j.anucene.2021.108522] [Citation(s) in RCA: 2] [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: 11/15/2022]
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Vaz Batista M, Pérez-Garcia J, Llombart Cussac A, Cortez P, Ruiz Borrego M, De La Haba J, Cejalvo J, Racca F, Servitja S, Blanch S, Lema L, Galàn Garmaje M, Fernández-Abad M, Fernández A, Iranzo V, González-Santiago S, Gion M, Nave M, Cortés J, Braga S. 330TiP Trastuzumab deruxtecan (T-DXd; DS-8201) in HER2-positive (HER2+) and HER2-low expressing (HER-LE) metastatic breast cancer (MBC) with brain metastases (BM) and/or leptomeningeal carcinomatosis (LMC): DEBBRAH. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.613] [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: 11/17/2022] Open
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Jiménez-Labaig P, Pacheco-Barcia V, Cebrià A, Gálvez F, Obispo B, Páez D, Quílez A, Quintanar T, Ramchandani A, Remon J, Rogado J, Sánchez DA, Sánchez-Cánovas M, Sanz-García E, Sesma A, Tarazona N, Cotés A, González E, Bosch-Barrera J, Fernández A, Felip E, Vera R, Rodríguez-Lescure Á, Élez E. Identifying and preventing burnout in young oncologists, an overwhelming challenge in the COVID-19 era: a study of the Spanish Society of Medical Oncology (SEOM). ESMO Open 2021; 6:100215. [PMID: 34325108 PMCID: PMC8332651 DOI: 10.1016/j.esmoop.2021.100215] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/07/2021] [Accepted: 06/25/2021] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Young oncologists are at particular risk of professional burnout, and this could have a significant impact on their health and care of their patients. The coronavirus disease 2019 (COVID-19) pandemic has forced rapid changes in professionals' jobs and training, with the consequent physical and psychological effects. We aimed to characterize burnout levels and determinants in young oncologists, and the effects of the pandemic on their training and health. METHODS Two online surveys were conducted among oncology residents and young oncology specialists in Spain. The first addressed professional burnout and its determinants before the COVID-19 pandemic, while the second analyzed the impact of the pandemic on health care organization, training, and physical and psychological health in the same population. RESULTS In total, 243 respondents completed the first survey, and 263 the second; 25.1% reported significant levels of professional burnout. Burnout was more common among medical oncology residents (28.2%), mainly in their second year of training. It was significantly associated with a poor work-life balance, inadequate vacation time, and the burnout score. Nearly three-quarters of respondents (72%) were reassigned to COVID-19 care and 84.3% of residents missed part of their training rotations. Overall, 17.2% of this population reported that they had contracted COVID-19, 37.3% had scores indicating anxiety, and 30.4% moderate to severe depression. Almost a quarter of young oncologists (23.3%) had doubts about their medical vocation. CONCLUSIONS Burnout affects a considerable number of young oncologists. The COVID-19 pandemic has had a profound impact on causes of burnout, making it even more necessary to periodically monitor it to define appropriate detection and prevention strategies.
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Affiliation(s)
- P Jiménez-Labaig
- Department of Medical Oncology, Cruces University Hospital, Barakaldo, Bizkaia, Spain
| | - V Pacheco-Barcia
- Department of Medical Oncology, Gómez Ulla Military Hospital, Madrid, Spain
| | - A Cebrià
- Department of Mental Health, Parc Taulí University Hospital, Sabadell, Catalunya, Spain
| | - F Gálvez
- Department of Medical Oncology, Jaén University Hospital, Jaén, Andalucía, Spain
| | - B Obispo
- Department of Medical Oncology, Infanta Leonor University Hospital, Madrid, Spain
| | - D Páez
- Department of Medical Oncology, Santa Creu i Sant Pau University Hospital, Barcelona, Catalunya, Spain
| | - A Quílez
- Department of Medical Oncology, Can Misses Hospital, Área de salud de Ibiza y Formentera (ASEF), Ibiza, Illes Balears, Spain
| | - T Quintanar
- Department of Medical Oncology, Elche University General Hospital, Elche, Comunitat Valenciana, Spain
| | - A Ramchandani
- Department of Medical Oncology, University Hospital Complex, Insular-Materno Infantil de Gran Canaria, Las Palmas de Gran Canaria, Islas Canarias, Spain
| | - J Remon
- Department of Medical Oncology, HM Delfos Hospital, Barcelona, Catalunya, Spain
| | - J Rogado
- Department of Medical Oncology, Infanta Leonor University Hospital, Madrid, Spain
| | - D A Sánchez
- Department of Medical Oncology, Virgen de La Arrixaca University Hospital, Murcia, Región de Murcia, Spain
| | - M Sánchez-Cánovas
- Department of Hematology and Medical Oncology, Morales Meseguer University General Hospital, Murcia, Región de Murcia, Spain
| | - E Sanz-García
- Department of Medical Oncology, HM Sanchinarro Hospital-Centro Integral Oncológico Clara Campal (CIOOC), Madrid, Spain
| | - A Sesma
- Department of Medical Oncology, Lozano Blesa University Clinical Hospital, Zaragoza, Aragón, Spain
| | - N Tarazona
- Department of Medical Oncology, INCLIVA Biomedical Research Institute, Comunitat Valenciana, Spain; Instituto de Salud Carlos III, CIBERONC, Madrid, Spain
| | - A Cotés
- Department of Medical Oncology, Elda General Hospital, Elda, Comunitat Valenciana, Spain
| | - E González
- Department of Medical Oncology, Virgen de las Nieves University Hospital, Granada, Andalucía, Spain
| | - J Bosch-Barrera
- Department of Medical Oncology, Dr. Josep Trueta University Hospital, Institut Català d'Oncologia (ICO), Girona, Catalunya, Spain
| | - A Fernández
- Department of Medical Oncology, University Hospital Complex of Ourense (CHUO), Ourense, Galicia, Spain
| | - E Felip
- Department of Medical Oncology, Vall d'Hebron University Hospital & Institute of Oncology (VHIO), Vall d'Hebron Hospital Campus, Barcelona, Catalunya, Spain
| | - R Vera
- Department of Medical Oncology, University Hospital Complex of Navarra, Pamplona, Navarra, Spain
| | - Á Rodríguez-Lescure
- Department of Medical Oncology, Elche University General Hospital, Elche, Comunitat Valenciana, Spain
| | - E Élez
- Department of Medical Oncology, Vall d'Hebron University Hospital & Institute of Oncology (VHIO), Vall d'Hebron Hospital Campus, Barcelona, Catalunya, Spain.
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Fradera J, Alberto P, Moya G, Bernad A, Fernández A. A feasibility study of a liquid shutdown system for a single-fluid molten salt fast reactor. Nuclear Engineering and Design 2021. [DOI: 10.1016/j.nucengdes.2021.111053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Schweitzer C, Garrido M, Paredes R, Stoore C, Reyes M, Bologna-Molina R, Fernández A, Hernández Rios M. Localization of interleukin-6 signaling complex in epithelialized apical lesions of endodontic origin. Clin Oral Investig 2021; 25:4075-4083. [PMID: 33411000 DOI: 10.1007/s00784-020-03738-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 12/08/2020] [Indexed: 02/07/2023]
Abstract
OBJECTIVES We aimed to determine the immunolocalization patterns of the interleukin (IL)-6 signaling complex in epithelialized and non-epithelialized apical lesions of endodontic origin (ALEOs). MATERIALS AND METHODS Epithelialized (n = 8) and non-epithelialized (n = 7) ALEOs were obtained from teeth with indication of extraction in patients with clinical diagnosis of apical periodontitis. All tissues were subjected to routine processing for histopathologic examination and primary antibodies for IL-6, IL-6 receptor (R), and glycoprotein (gp)-130 were used for immunohistochemistry and double immunofluorescence co-localization. RESULTS IL-6, IL-6R, and gp-130 were immunolocalized in endothelial cells and mononuclear leukocytes in a diffuse pattern within the connective tissue of epithelialized and non-epithelialized ALEOs. In the epithelialized lesions, two different patterns were identified: IL-6 signaling complex was localized within the proliferating epithelium in a diffuse intracellular pattern and in a cell membrane localization pattern within the mature epithelial lining, showing a decreased intensity towards the surface layers. CONCLUSIONS IL-6, IL-6R, and gp-130 localized to mononuclear inflammatory cells, vascular endothelial cells, and immature proliferating epithelia in a diffuse pattern and in mature lining epithelia in a localized cell membrane pattern, supporting a role for epithelial proliferation during cyst formation. Additional cell membrane co-localization of IL-6 receptor complex suggests classic signaling involvement in addition to trans-signaling.
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Affiliation(s)
- C Schweitzer
- Department of Oral Pathology and Medicine, Faculty of Dentistry, Universidad de Chile, Sergio Livingstone Pohlhammer 943, Independencia, 8380000, Santiago, Chile
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Sergio Livingstone Pohlhammer 943, Independencia, 8380000, Santiago, Chile
| | - M Garrido
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Sergio Livingstone Pohlhammer 943, Independencia, 8380000, Santiago, Chile
| | - R Paredes
- Faculty of Veterinary Medicine, Faculty of Life Sciences, Universidad Andrés Bello, Av. República 440, 8320000, Santiago, Chile
| | - C Stoore
- Faculty of Veterinary Medicine, Faculty of Life Sciences, Universidad Andrés Bello, Av. República 440, 8320000, Santiago, Chile
| | - M Reyes
- Department of Oral Pathology and Medicine, Faculty of Dentistry, Universidad de Chile, Sergio Livingstone Pohlhammer 943, Independencia, 8380000, Santiago, Chile
| | - R Bologna-Molina
- Faculty of Dentistry, Universidad de la República, General las Heras 1925, 11600, Montevideo, Uruguay
| | - A Fernández
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Sergio Livingstone Pohlhammer 943, Independencia, 8380000, Santiago, Chile
- Faculty of Dentistry, Universidad Andrés Bello, Av. República 440, 8320000, Santiago, Chile
| | - Marcela Hernández Rios
- Department of Oral Pathology and Medicine, Faculty of Dentistry, Universidad de Chile, Sergio Livingstone Pohlhammer 943, Independencia, 8380000, Santiago, Chile.
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Sergio Livingstone Pohlhammer 943, Independencia, 8380000, Santiago, Chile.
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Serra JA, Díaz F, Cruces P, Carvajal C, Nuñez MJ, Donoso A, Bravo-Serrano J, Carbonell M, Courtie C, Fernández A, Martínez-Arroyo L, Martínez J, Menta S, Pedrozo-Ortiz L, Wegner A, Monteverde-Fernández N, Jaramillo-Bustamante JC, Jabornisky R, González-Dambrauskas S, Kudchadkar SR, Vásquez-Hoyos P. Characteristics of Medically Transported Critically Ill Children with Respiratory Failure in Latin America: Implications for Outcomes. J Pediatr Intensive Care 2021; 11:201-208. [DOI: 10.1055/s-0040-1722204] [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] [Received: 08/18/2020] [Accepted: 11/20/2020] [Indexed: 10/21/2022] Open
Abstract
AbstractSeveral challenges exist for referral and transport of critically ill children in resource-limited regions such as Latin America; however, little is known about factors associated with clinical outcomes. Thus, we aimed to describe the characteristics of critically ill children in Latin America transferred to pediatric intensive care units for acute respiratory failure to identify risk factors for mortality. We analyzed data from 2,692 patients admitted to 28 centers in the Pediatric Collaborative Network of Latin America Acute Respiratory Failure Registry. Among patients referred from another facility (773, 28%), nonurban transports were independently associated with mortality (adjusted odds ratio = 9.4; 95% confidence interval: 2.4–36.3).
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Affiliation(s)
- Jesus A. Serra
- División de Cuidados Intensivos Pediátricos, Departamento de Pediatría, Casa de Galicia, Montevideo, Uruguay
| | - Franco Díaz
- División de Cuidados Intensivos Pediátricos, Departamento de Pediatría, Hospital El Carmen de Maipú, Santiago, Chile
- Instituto de Ciencias e Innovación en Medicina, Universidad del Desarrollo, Santiago, Chile
| | - Pablo Cruces
- División de Cuidados Intensivos Pediátricos, Departamento de Pediatría, Hospital El Carmen de Maipú, Santiago, Chile
- Departamento de Pediatría, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Cristobal Carvajal
- Instituto de Ciencias e Innovación en Medicina, Universidad del Desarrollo, Santiago, Chile
- División de Cuidados Intensivos Pediátricos, Departamento de Pediatría, Facultad de Medicina, Clínica Alemana, Santiago, Chile
| | - Maria J. Nuñez
- División de Cuidados Intensivos Pediátricos, Departamento de Pediatría, Hospital Clínico La Florida Dra. Eloísa Díaz Insunza, Santiago, Chile
| | - A Donoso
- División de Cuidados Intensivos Pediátricos, Departamento de Pediatría, Hospital Clínico La Florida Dra. Eloísa Díaz Insunza, Santiago, Chile
| | - J.A Bravo-Serrano
- División de Cuidados Intensivos Pediátricos, Departamento de Pediatría, Caja Nacional de Salud, La Paz, Bolivia
| | - M Carbonell
- División de Cuidados Intensivos Pediátricos, Departamento de Pediatría, Médica Uruguaya, Montevideo, Uruguay
| | - C Courtie
- División de Cuidados Intensivos Pediátricos, Departamento de Pediatría, Hospital de Sanidad Militar, Montevideo, Uruguay
| | - A Fernández
- División de Cuidados Intensivos Pediátricos, Departamento de Pediatría, Asociación Española, Montevideo, Uruguay
| | - L Martínez-Arroyo
- División de Cuidados Intensivos Pediátricos, Departamento de Pediatría, COMEPA, Paysandú, Uruguay
| | - J Martínez
- División de Cuidados Intensivos Pediátricos, Departamento de Pediatría, Hospital de Sanidad Militar, Montevideo, Uruguay
| | - S Menta
- División de Cuidados Intensivos Pediátricos, Departamento de Pediatría, Hospital Regional de Tacuarembó, Tacuarembó, Uruguay
| | - Luis Pedrozo-Ortiz
- División de Cuidados Intensivos Pediátricos, Departamento de Pediatría, Hospital Regional de Salto, Salto, Uruguay
| | - A Wegner
- División de Cuidados Intensivos Pediátricos, Departamento de Pediatría, Complejo Asistencial Dr. Sótero del Río, Santiago, Chile
| | | | - Juan C. Jaramillo-Bustamante
- División de Cuidados Intensivos Pediátricos, Departamento de Pediatría, Hospital General de Medellín, Colombia
- División de Cuidados Intensivos Pediátricos, Departamento de Pediatría, Facultad de Medicina, Universidad de Antioquía, Colombia
| | - Roberto Jabornisky
- División de Cuidados Intensivos Pediátricos, Departamento de Pediatría, Hospital Juan Pablo II, Corrientes, Argentina
| | | | - Sapna R. Kudchadkar
- División de Cuidados Intensivos Pediátricos, Departamento de Pediatría, Johns Hopkins University School of Medicine, Baltimore, United States
| | - Pablo Vásquez-Hoyos
- División de Cuidados Intensivos Pediátricos, Departamento de Pediatría, Departamento de Pediatría, Sociedad de Cirugía Hospital de San José, Bogotá, Colombia
- División de Cuidados Intensivos Pediátricos, Departamento de Pediatría, Fundación Universitaria de Ciencias de la Salud (FUCS), Bogotá, Colombia
- División de Cuidados Intensivos Pediátricos, Departamento de Pediatría, Universidad Nacional de Colombia, Bogotá, Colombia
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Arnal JL, Fernández A, Vela AI, Sanz C, Fernández-Garyzábal JF, Cid D. Capsular type diversity of Mannheimia haemolytica determined by multiplex real-time PCR and indirect hemagglutination in clinical isolates from cattle, sheep, and goats in Spain. Vet Microbiol 2021; 258:109121. [PMID: 34020174 DOI: 10.1016/j.vetmic.2021.109121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 05/13/2021] [Indexed: 10/21/2022]
Abstract
This study compares the utility of a commercially available multiplex q-PCR assay for serotyping A1, A2, and A6 M. haemolytica serotypes with indirect hemagglutination, for determining the relative distribution of M. haemolytica capsular types associated with respiratory disorders in cattle, sheep, and goats. For the 129 isolates analyzed, both q-PCR and IHA assays exhibited nearly complete agreement for capsular types A1 (k = 0.965) and A2 (k = 0.888) and substantial agreement for A6 (k = 0.801). Despite the overall good performance of the commercial q-PCR, its effectiveness differed between the host origin of the isolates. The serotype was identified by q-PCR in 83.3 % of cattle, 77.8 % of goat, and 53.8 % of sheep isolates. Combining the results of both methods, A1 was the most prevalent in cattle and sheep (55.6 % and 22.25 %, respectively) but was not detected in goats, A2 was the most prevalent in goats (61.1 %) and the second most prevalent in cattle (16.7 %) and sheep (20.5 %). The prevalence of A6 was 7.4 %, 5.1 %, and 16.7 % in cattle, sheep, and goats, respectively. Other capsular types determined exclusively by IHA were A16 in cattle, A9 in goats, and A7, A8, A9, and A13 in sheep. Capsular type diversity was greater in sheep (H = 0.601) than in cattle (H = 0.408) and goat (H = 0.330) isolates. The commercial multiplex q-PCR is a valuable tool, alternative to IHA, for identifying isolates of capsular types A1, A2, and A6, the most frequent serotypes of M. haemolytica associated with respiratory disease in ruminants. However, when testing sheep isolates it should be complemented with immunological assays due to the wider range of serotypes implicated.
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Affiliation(s)
- J L Arnal
- Exopol. Veterinary Diagnostic and Autogenous Vaccine Laboratory, Polígono Río Gállego, D/8. 50840 San Mateo de Gállego, Zaragoza, Spain
| | - A Fernández
- Exopol. Veterinary Diagnostic and Autogenous Vaccine Laboratory, Polígono Río Gállego, D/8. 50840 San Mateo de Gállego, Zaragoza, Spain
| | - A I Vela
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad Complutense, Madrid, Spain; Centro de Vigilancia Sanitaria Veterinaria (VISAVET), Universidad Complutense, Madrid, Spain
| | - C Sanz
- Exopol. Veterinary Diagnostic and Autogenous Vaccine Laboratory, Polígono Río Gállego, D/8. 50840 San Mateo de Gállego, Zaragoza, Spain
| | - J F Fernández-Garyzábal
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad Complutense, Madrid, Spain; Centro de Vigilancia Sanitaria Veterinaria (VISAVET), Universidad Complutense, Madrid, Spain.
| | - D Cid
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad Complutense, Madrid, Spain
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Aranguren L, Martinez M, De Jalón EG, Fernández A, Ariz M, Otero M, Pereda N. Diagnostic change 2 years after a first episode of psychosis. Eur Psychiatry 2021. [PMCID: PMC9475703 DOI: 10.1192/j.eurpsy.2021.1416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Introduction Psychiatric diagnoses are derived from expert opinion (1). Since no objective tests or markers are on the horizon, clinical psychiatry is anchored to “the patient’s altered experience, expression and existence, associated with suffering in self and/or others”(2). Many studies have examined diagnostic stability over time. In the last years investigators have been reporting prospective and retrospective consistencies of diagnoses between two time points, specially in first episodes of psychosis (3). Objectives To examine the prospective and retrospective stability of diagnostic categories 2 years after the first episode of psychosis Methods Data were examined from the First Episode Psychosis Program of Navarra (PEPsNA), a prospective observational study of a cohort of patients with first-episode psychosis in Navarra (Spain). Diagnosis was assigned using DSM-IV-TR at baseline and 24 months later. Diagnoses were divided into 5 categories: Affective psychosis, Schizophrenia spectrum psychosis, Schizoaffective disorder, acute psychosis and other diagnoses. Diagnostic change was examined using prospective and retrospective consistency Results A total of 78 first-episode psychosis cases with baseline and 24 months follow-up were identified. Table 1 shows the diagnosis movement matrix, and Figure 1 its graphical representation. Of cases, 71.8% (56/78) had the same baseline and 24 months follow-up diagnosis. Prospective and retrospective consistencies are shown in Table 2 Conclusions The prospective and retrospective consistencies of Schizophrenia spectrum psychosis and acute psychosis were higher than others. Affective psychosis and Schizoaffective disorder show very variable consistencies
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Martinez M, De Jalón EG, Pereda N, Fernández A, Ariz M, Azcárate L, Otero M. Impact of a first psychosis program in clinical variables after two years of follow-up. Eur Psychiatry 2021. [PMCID: PMC9475928 DOI: 10.1192/j.eurpsy.2021.1411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Introduction Early Intervention Services for Early-Phase Psychosis have shown efficacy and effectiveness (Correl C, JAMA). In Pamplona, Spain, there is an Early Intervention Program that has been providing multiprofesional assistance for First Psychotic Patients for the last two years. Objectives The aim of this study is to analize the longitudinal effects of the different interventions in several clinical variables applied to 240 patients during two years of follow-up : CASH dimensions, substance abuse, antipsychotic type and dosage, remission rates, re-hospitalization rates and DSM 5 diagnoses. Methods We apply an standard evaluation protocol to every patient at different times: premorbid, initial time and at months 6, 12, 18 and 24. We analyse the data with the SPSS statistical program to see the results in these variables. Results The positive and disorganized dimensions show an evident decline during the treatment. The doses of antipsychotic drugs are low and tend to decline. 87% of patients are in monotherapy. The most frequent DSM 5 basal diagnosis is Brief Psychotic Episode, but during de follow-up the Diagnosis of Schizophrenia increase from 14,6% at baseline up to 46,2% at month 24. The remission rates are about 65% after 24 months. Conclusions Early Intervention Services improve psychopathological dimensions, prevents from re-hospitalization, allows the use of lower doses of Antipsychotic Drugs and improve the rates of remission. However, the diagnosis of Schizophrenia is high, so there is no evidence that these programs prevents from chronicity, but provide a better quality of life.
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22
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González-Castro A, Cuenca Fito E, Fernández A, Escudero Acha P, Rodríguez Borregán JC, Peñasco Y. Impact of corticosteroid therapy on the survival of critical COVID-19 patients admitted into an intensive care unit. Rev Esp Anestesiol Reanim (Engl Ed) 2021; 69:S0034-9356(21)00096-7. [PMID: 34148692 PMCID: PMC7938785 DOI: 10.1016/j.redar.2021.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 02/10/2021] [Accepted: 02/15/2021] [Indexed: 12/29/2022]
Affiliation(s)
- A González-Castro
- Servicio de Medicina Intensiva, Hospital Universitario Marqués de Valdecilla, Santander, España.
| | - E Cuenca Fito
- Servicio de Medicina Intensiva, Hospital Universitario Marqués de Valdecilla, Santander, España
| | - A Fernández
- Servicio de Medicina Intensiva, Hospital Universitario Marqués de Valdecilla, Santander, España
| | - P Escudero Acha
- Servicio de Medicina Intensiva, Hospital Universitario Marqués de Valdecilla, Santander, España
| | - J C Rodríguez Borregán
- Servicio de Medicina Intensiva, Hospital Universitario Marqués de Valdecilla, Santander, España
| | - Y Peñasco
- Servicio de Medicina Intensiva, Hospital Universitario Marqués de Valdecilla, Santander, España
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23
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Abouzian S, Fernández A, López-Mora DA, Fuentes F, Sizova M, Carrió I. 18F-fluorocholine uptake in Paget's disease in two patients with prostate cancer. Rev Esp Med Nucl Imagen Mol 2021; 41:S2253-654X(20)30215-8. [PMID: 33455890 DOI: 10.1016/j.remn.2020.11.010] [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] [Received: 06/29/2020] [Revised: 11/26/2020] [Accepted: 11/26/2020] [Indexed: 11/21/2022]
Affiliation(s)
- S Abouzian
- Servicio de Medicina Nuclear, Hospital de la Santa Creu i Sant Pau, Barcelona, España.
| | - A Fernández
- Servicio de Medicina Nuclear, Hospital de la Santa Creu i Sant Pau, Barcelona, España
| | - D A López-Mora
- Servicio de Medicina Nuclear, Hospital de la Santa Creu i Sant Pau, Barcelona, España
| | - F Fuentes
- Servicio de Medicina Nuclear, Hospital de la Santa Creu i Sant Pau, Barcelona, España
| | - M Sizova
- Servicio de Medicina Nuclear, Hospital de la Santa Creu i Sant Pau, Barcelona, España
| | - I Carrió
- Servicio de Medicina Nuclear, Hospital de la Santa Creu i Sant Pau, Barcelona, España
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Fernández A, Straw A, Distel M, Leitgeb R, Baltuska A, Verhoef AJ. Dynamic real-time subtraction of stray-light and background for multiphoton imaging. Biomed Opt Express 2021; 12:288-302. [PMID: 33659077 PMCID: PMC7899518 DOI: 10.1364/boe.403255] [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] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 10/13/2020] [Accepted: 11/17/2020] [Indexed: 06/12/2023]
Abstract
We introduce a new approach to reduce uncorrelated background signals from fluorescence imaging data, using real-time subtraction of background light. This approach takes advantage of the short fluorescence lifetime of most popular fluorescent activity reporters, and the low duty-cycle of ultrafast lasers. By synchronizing excitation and recording, laser-induced multiphoton fluorescence can be discriminated from background light levels with each laser pulse. We demonstrate the ability of our method to - in real-time - remove image artifacts that in a conventional imaging setup lead to clipping of the signal. In other words, our method enables imaging under conditions that in a conventional setup would yield corrupted data from which no accurate information can be extracted. This is advantageous in experimental setups requiring additional light sources for applications such as optogenetic stimulation.
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Affiliation(s)
- A Fernández
- IQSE and Department of Soil and Crop Sciences, Texas A&M University, 4242 TAMU, College Station, TX 77843, USA
- Photonics Institute, TU Wien, Gusshausstrasse 27-29/387, 1040 Vienna, Austria
- Centro Regional Universitario de Coclé, Universidad de Panamá, Penonomé, Coclé, Panama
| | - A Straw
- Institute of Biology I and Bernstein Center Freiburg, University of Freiburg, Hauptstrasse 1, 79104 Freiburg, Germany
| | - M Distel
- St. Anna Children's Cancer Research Institute, Zimmermannplatz 10, 1090 Vienna, Austria
| | - R Leitgeb
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Währinger Gürtel 18-20/4L, 1090 Vienna, Austria
| | - A Baltuska
- Photonics Institute, TU Wien, Gusshausstrasse 27-29/387, 1040 Vienna, Austria
| | - A J Verhoef
- IQSE and Department of Soil and Crop Sciences, Texas A&M University, 4242 TAMU, College Station, TX 77843, USA
- Photonics Institute, TU Wien, Gusshausstrasse 27-29/387, 1040 Vienna, Austria
- Centro Regional Universitario de Coclé, Universidad de Panamá, Penonomé, Coclé, Panama
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Währinger Gürtel 18-20/4L, 1090 Vienna, Austria
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López-Mora DA, Fernández A, Duch J, Carrio I. Follow-up 18F-FDG PET/CT in an oncological asymptomatic COVID-19 patient. Rev Esp Med Nucl Imagen Mol 2020; 40:S2253-654X(20)30209-2. [PMID: 33380383 PMCID: PMC7698686 DOI: 10.1016/j.remn.2020.11.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/03/2020] [Accepted: 11/04/2020] [Indexed: 11/06/2022]
Affiliation(s)
- D A López-Mora
- Servicio de Medicina Nuclear, Hospital de la Santa Creu i Sant Pau, Universidad Autónoma de Barcelona, Barcelona, España.
| | - A Fernández
- Servicio de Medicina Nuclear, Hospital de la Santa Creu i Sant Pau, Universidad Autónoma de Barcelona, Barcelona, España
| | - J Duch
- Servicio de Medicina Nuclear, Hospital de la Santa Creu i Sant Pau, Universidad Autónoma de Barcelona, Barcelona, España
| | - I Carrio
- Servicio de Medicina Nuclear, Hospital de la Santa Creu i Sant Pau, Universidad Autónoma de Barcelona, Barcelona, España
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Salaheldeen M, Martínez-Goyeneche L, Álvarez-Alonso P, Fernández A. Enhancement the perpendicular magnetic anisotropy of nanopatterned hard/soft bilayer magnetic antidot arrays for spintronic application. Nanotechnology 2020; 31:485708. [PMID: 32931464 DOI: 10.1088/1361-6528/abb109] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Development of perpendicular magnetic anisotropy thin films is a requisite for many applications. In this work, we have illustrated the enhancement of the PMA of Hard (Co)/Soft (Permalloy, Py) ferromagnetic bilayers by depositing them onto nanoporous anodic alumina membranes with different hole diameters varying in the range between 30 nm and 95 nm. A dramatic change in the hysteresis loops behaviour with hole size, D, and magnetic surface cover ratio parameters has been observed: (1) for samples with small antidot hole diameters, the in-plane (INP) hysteresis loops show single-step magnetic behaviour; (2) for D = 75 nm, the hysteresis loops of Co/Py and Py samples exhibit a multistep magnetic behaviour; (3) a decreasing coercivity in the INP hysteresis loops for antidot arrays samples with D> 75 nm has been detected as a consequence of the reduction of the INP magnetic anisotropy and the rising of the out-of-plane component. A crossover of the magnetic anisotropy from the INP to out-of-plane for bilayer antidot samples has been observed for Co/Py ferromagnetic bilayers, favoured by the interfacial exchange coupling between the two ferromagnetic materials. These findings can be of high interest for the development of novel magnetic sensors and for perpendicular-magnetic recording patterned media based on template-assisted deposition techniques.
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Affiliation(s)
- M Salaheldeen
- Physics Department, Faculty of Science, Sohag University, 82524, Sohag, Egypt. Depto. Física, Universidad de Oviedo, C/Federico García Lorca 18, 33007, Oviedo, Asturias, Spain
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Suárez M, Fernández-García E, Fernández A, López-Píriz R, Díaz R, Torrecillas R. Novel antimicrobial phosphate-free glass-ceramic scaffolds for bone tissue regeneration. Sci Rep 2020; 10:13171. [PMID: 32826917 PMCID: PMC7442813 DOI: 10.1038/s41598-020-68370-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 06/24/2020] [Indexed: 12/25/2022] Open
Abstract
In this study a phosphate-free glass-ceramic porous scaffold was synthesized by a three-step methodology involving slurry preparation, induction of porosity by surfactant-assisted foaming following by freeze-drying and sintering. This inorganic scaffold was characterized by X-ray diffraction, scanning electron microscope (SEM), degradation and bioactivity. Thermal treatment at 750 °C showed two new crystalline phases, combeite and nepheline, into the glassy matrix responsible for its properties. The cell response of the scaffold was also evaluated for using as a bone graft substitute. A commercial Biphasic Calcium Phosphate, BCP, scaffold was assessed in parallel as reference material. Microstructures obtained by SEM showed the presence of macro, meso and microporosity. The glass-ceramic scaffold possesses an interconnected porosity around 31% with a crack-pore system that promote the protein adsorption and cell attachment. Glass-ceramic scaffold with high concentration of calcium ions shows an antimicrobial behavior against Escherichia coli after 24 h of contact. Nepheline phase present in the glass-ceramic structure is responsible for its high mechanical properties being around 87 MPa. Glass-ceramic scaffold promotes greater protein adsorption and therefore the attachment, spreading and osteodifferentiation of Adipose Derived Stem Cells than BCP scaffold. A higher calcification was induced by glass-ceramic scaffold compared to reference BCP material.
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Affiliation(s)
- M Suárez
- Nanomaterials and Nanotechnology Research Center (CINN-CSIC), Universidad de Oviedo (UO), Principado de Asturias, Avda de la Vega 4-6, 33940, El Entrego, Spain.
- Instituto de Investigación Sanitaria del Principado de Asturias, Av. Roma, s/n, 33011, Oviedo, Asturias, Spain.
| | - E Fernández-García
- Nanomaterials and Nanotechnology Research Center (CINN-CSIC), Universidad de Oviedo (UO), Principado de Asturias, Avda de la Vega 4-6, 33940, El Entrego, Spain
| | - A Fernández
- Nanomaterials and Nanotechnology Research Center (CINN-CSIC), Universidad de Oviedo (UO), Principado de Asturias, Avda de la Vega 4-6, 33940, El Entrego, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias, Av. Roma, s/n, 33011, Oviedo, Asturias, Spain
| | - R López-Píriz
- Nanomaterials and Nanotechnology Research Center (CINN-CSIC), Universidad de Oviedo (UO), Principado de Asturias, Avda de la Vega 4-6, 33940, El Entrego, Spain
| | - R Díaz
- Nanomaterials and Nanotechnology Research Center (CINN-CSIC), Universidad de Oviedo (UO), Principado de Asturias, Avda de la Vega 4-6, 33940, El Entrego, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias, Av. Roma, s/n, 33011, Oviedo, Asturias, Spain
| | - R Torrecillas
- Nanomaterials and Nanotechnology Research Center (CINN-CSIC), Universidad de Oviedo (UO), Principado de Asturias, Avda de la Vega 4-6, 33940, El Entrego, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias, Av. Roma, s/n, 33011, Oviedo, Asturias, Spain
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Díaz-Santana PJ, Súarez-Santana CM, Fernández A, Rambaldi A, Consoli F, Puig-Lozano R, Sierra E, Los Monteros AED, Arbelo M. Seminoma in an adult striped dolphin Stenella coeruleoalba: tomographic, macroscopical, histological and immunohistochemical study. Dis Aquat Organ 2020; 140:97-101. [PMID: 32701065 DOI: 10.3354/dao03496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Testicular neoplasms have been extensively described and characterized in domestic animals, but reports in wildlife species, including marine mammals, are scarce. This case report describes a testicular seminoma in an adult striped dolphin Stenella coeruleoalba stranded along the coasts of the Canary Islands. Post-mortem computerized tomography (CT) showed a prominent enlargement of the cranial pole of the right testicle, displacing the intestinal loops. Necropsy gross findings confirmed the presence of a testicular mass, bulging at the cut surface, with multiple well-delimitated whitish nodular lesions. Histologically, intratubular and diffuse neoplastic germinative cell proliferation was described. Complementary immunohistochemical assessments for vimentin and CD117 antibodies were negative. To the authors' knowledge, this is the first seminoma described in a S. coeruleoalba. We suggest that post-mortem (PM) pre-necropsy CT in dolphins is a useful tool for anatomic-guided pathology in such cases.
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Affiliation(s)
- P J Díaz-Santana
- Veterinary Histology and Pathology, Atlantic Center of Cetacean Research, University Institute of Animal Health and Food Safety (IUSA), Veterinary School, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
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Pablos MV, Beltrán EM, Jiménez MA, García-Hortigüela P, Fernández A, González-Doncel M, Fernández C. Effect assessment of reclaimed water and carbamazepine exposure on the thyroid axis of X. laevis: Apical and histological effects. Sci Total Environ 2020; 723:138023. [PMID: 32220735 DOI: 10.1016/j.scitotenv.2020.138023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 03/16/2020] [Accepted: 03/16/2020] [Indexed: 06/10/2023]
Abstract
There is increasing environmental concern about the constant presence of pharmaceuticals and personal care products (PPCPs) in surface water, generally attributed to water discharge from wastewater treatment plants (WWTPs) that are unable to completely remove these compounds. The slight, but continuous, presence of these contaminants in reclaimed water (RW) poses a risk of chronic and sublethal toxicity, and the thyroid axis can likely be a target of many of these PPCPs. In this work, we addressed the effects of RW on the Xenopus laevis thyroid system. The Amphibian Metamorphosis Assay (AMA test) was used with modifications by exposing X. laevis tadpoles to RW samples, and to RW spiked with carbamazepine (CBZ) at 100 and 1000 higher than the average levels environmentally relevant (RW 100× and RW 1000×, respectively). Carbamazepine was selected because it is considered a marker of anthropogenic pollution and could have a potential effect on the thyroid axis. The morphological endpoints and histological alterations to the thyroid gland were evaluated. The results suggested the stimulation of the thyroid gland from exposures to the RW samples, supported by tadpoles' accelerated development and by the histological alterations observed in the thyroid gland. Developmental acceleration was also seen in the tadpoles exposed to the RW-100× and -1000× samples at comparable levels to those seen in exposures to RW samples alone. Hence CBZ did not seem to increase the effects of RW on the thyroid axis. Overall, our results suggested endocrine effects of these RW samples regardless of the CBZ concentration.
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Affiliation(s)
- M V Pablos
- Laboratory for Ecotoxicology, Department of Environment, INIA, Crta. La Coruña km 7, 28040 Madrid, Spain.
| | - E M Beltrán
- Laboratory for Ecotoxicology, Department of Environment, INIA, Crta. La Coruña km 7, 28040 Madrid, Spain
| | - M A Jiménez
- Histology Laboratory, Faculty of Veterinary Medicine, The Complutense University, Avda. Puerta de Hierro, s/n. Ciudad Universitaria, 28040 Madrid, Spain
| | - P García-Hortigüela
- Laboratory for Ecotoxicology, Department of Environment, INIA, Crta. La Coruña km 7, 28040 Madrid, Spain
| | - A Fernández
- Laboratory for Ecotoxicology, Department of Environment, INIA, Crta. La Coruña km 7, 28040 Madrid, Spain
| | - M González-Doncel
- Laboratory for Ecotoxicology, Department of Environment, INIA, Crta. La Coruña km 7, 28040 Madrid, Spain
| | - C Fernández
- Laboratory for Ecotoxicology, Department of Environment, INIA, Crta. La Coruña km 7, 28040 Madrid, Spain
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Fernández A, Veloso P, Astorga J, Rodríguez C, Torres VA, Valdés M, Garrido M, Gebicke-Haerter PJ, Hernández M. Epigenetic regulation of TLR2-mediated periapical inflammation. Int Endod J 2020; 53:1229-1237. [PMID: 32426871 DOI: 10.1111/iej.13329] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 05/12/2020] [Indexed: 12/14/2022]
Abstract
AIM To determine the methylation pattern of TLR2 gene promoter and its association with the transcriptional regulation of periapical inflammatory and angiogenic responses in symptomatic and asymptomatic forms of apical periodontitis. METHODOLOGY In this cross-sectional study, apical lesions were obtained from volunteers with asymptomatic apical periodontitis (AAP) (n = 17) and symptomatic apical periodontitis (SAP) (n = 17) scheduled for tooth extraction, and both total RNA and DNA were extracted. DNA was bisulfite-treated, a region of CpG island within the TLR2 gene was amplified by qPCR and the products were sequenced. Additionally, the mRNA expression of TLR2, TLR4, IL-6, IL-12, TNFalpha, IL-23, IL-10, TGFbeta, VEGFA and CDH5 was analysed by qPCR. The data were analysed with chi-square tests, Mann-Whitney or unpaired t-tests, and Spearman´s correlation; variable adjustments were performed using multiple linear regression (P < 0.05). RESULTS TLR2 depicted a hypomethylated DNA profile at the CpG island in SAP when compared with AAP, along with upregulated expression of TLR2, with pro-inflammatory cytokines IL-6 and IL-23, and the angiogenesis marker CDH5 (P < 0.05). TLR2 methylation percentage negatively correlated with mRNA levels of IL-23 and CDH5 in apical periodontitis. Lower methylation frequencies of single CpG dinucleotides -8 and -10 localized in close proximity to nuclear factor κB (NFκB) binding within the TLR2 promoter were identified in SAP versus AAP (P < 0.05). Finally, unmethylated -10 and -8 single sites demonstrated up-regulation of IL-23, IL-10 and CDH5 transcripts compared to their methylated counterparts (P < 0.05). CONCLUSIONS TLR2 gene promoter hypomethylation was linked to transcriptional activity of pro-inflammatory cytokines and angiogenic markers in exacerbated periapical inflammation. Moreover, unmethylated single sites in close proximity to NFκB binding were involved in active transcription of IL-23, IL-10 and CDH5.
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Affiliation(s)
- A Fernández
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Santiago, Chile.,Faculty of Dentistry, Universidad Andres Bello, Santiago, Chile
| | - P Veloso
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Santiago, Chile
| | - J Astorga
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Santiago, Chile
| | - C Rodríguez
- Faculty of Dentistry, Universidad Andres Bello, Santiago, Chile
| | - V A Torres
- Faculty of Dentistry, Universidad de Chile, Institute for Research in Dental Sciences, Santiago, Chile
| | - M Valdés
- School of Public Health, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - M Garrido
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Santiago, Chile
| | - P J Gebicke-Haerter
- Program of Immunology, Faculty of Medicine, Institute of Biomedical Sciences, Universidad de Chile, Santiago, Chile.,Institute of Psychopharmacology, Faculty of Medicine, Central Institute of Mental Health, University of Heidelberg, Mannheim, Germany
| | - M Hernández
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Santiago, Chile.,Department of Pathology and Oral Medicine, Faculty of Dentistry, Universidad de Chile, Santiago, Chile
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Angulo J, Sevilleja-Ortiz A, Fernández A, Pepe-Cardoso A, Martínez-Salamanca J, Sánchez-Ferrer A, Louro N, El Assar M, Rodríguez-Mañas L, La Fuente J. PS-3-1 Reduced Expression of Hydrogen Sulfide Synthesizing Enzymes Is Associated With the Functional Impairment of L-Cysteine-Induced Responses in Human Corpus Cavernosum and Penile Arteries From ED Patients. J Sex Med 2020. [DOI: 10.1016/j.jsxm.2020.04.034] [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: 11/25/2022]
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Finocchiaro J, Fernández A, Barcellandi P, Etcheverry N, Irigoyen N, Rentería F. ePS4.05 Resting energy expenditure in patients with cystic fibrosis during a pulmonary exacerbation. J Cyst Fibros 2020. [DOI: 10.1016/s1569-1993(20)30315-5] [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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Angulo J, Sevilleja-Ortiz A, García-Rojo E, Fernández A, García-Gómez B, Medina-Polo J, Alonso-Isa M, El Assar M, Rodríguez-Mañas L, Romero-Otero J. PS-3-6 Orai Channel Inhibition Modulates Hypercontractility in Corpus Cavernosum From Diabetic Rats and Diabetic ED Patients where Orai Expression Is Upregulated. J Sex Med 2020. [DOI: 10.1016/j.jsxm.2020.04.038] [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: 11/28/2022]
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Rodríguez Carballeira M, Solans R, Ríos Fernández R, Escalante B, Maure B, Fernández A, Hurtado R, Boldova R, Espinosa G. SAT0274 DESCRIPTIVE ANALYSIS OF FLARES DURING THE LONG-TERM FOLLOW-UP OF PATIENTS WITH BEHÇET’S DISEASE INCLUDED IN REGEB COHORT. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.4940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Objectives:To describe the clinical manifestations and treatment of flares during follow-up in patients with Behçet’s disease (BD) included in the REGEB cohort over the last decade.Methods:The Spanish Registry of BD or REGEB (REGistrode la Enfermedad de Behçet as Spanish nomenclature) Project Group was created by the Spanish Internal Medicine Society in 2009 with the aim of compiling a large cohort of Spanish patients with this rare disorder. By July 2012, REGEB has collected 635 BD patients with a multicentre, longitudinal and consecutive design. Diagnosis of BD was performed on the basis of the International Study Group criteria for BD. Since inclusion in the registry, patients have been followed prospectively and new flares have been recorded, defined as those clinical manifestations which have required initiation or modification of immunosuppressive treatment, or prednisone dose at or higher than 10mg/d of prednisone during more than 1 month.Results:A prospective follow-up of 326 patients included in the registry has been analysed. There are 182 women (56%) and their average age (SD) at the time of diagnosis was 33 (13) years. The majority of them were Caucasian (91%). The median follow-up time from BD diagnosis was 180 months, and the prospective follow-up period from the inclusion in the registry was 80 months. The cumulative clinical manifestations until the initial registration were oral ulcers in 100% of patients, genital ulcers in 221 (68%), arthritis in 147 (45%), erythema nodosum in 96 (29%), fever in 82 (25%), thrombosis in 74 (23%), anterior uveitis in 76 (23%), retinal vasculitis in 46 (14%), posterior uveitis in 35 (11%), aseptic meningitis in 32 (10%), and other neurological manifestations in 15 (5%) patients. One hundred and fifty-six (48%) patients received immunosuppressants and 47 (14%) biological therapy.During follow up (period from the inclusion in the REGEB to the last visit) 68 (23%) patients presented at least a severe outbreak. The median time from the BD diagnosis to the first flare were 170 months. The main clinical manifestations were oral-genital ulcers in 43 (63%) patients, uveitis in 31 (45%), arthritis in 13 (19%), neurological in 16 (24%), vascular in 10 (15%), and gastrointestinal in 3 (4%) patients. Immunosuppressants were used in 37 (54%) patients and biological therapy in 14 (21%). Biological therapy was mostly used due to refractory disease, the majority of cases because ocular manifestations. There were no differences in terms of age, sex, race and previous clinical manifestations between patients who suffered from flares and those who did not. Flares were more frequent in patients who have received previous immunosuppressive or biological treatment (35% vs 13% and 48% vs 19%, respectively) (p<0.001 in both cases), probably reflecting a more severe disease.Conclusion:The long-term follow-up of BD patients from REGEB cohort showed that 10 years after diagnosis, a fifth of them may continue to present severe flares requiring systemic treatment. The use of biological therapy increased over time and their main indication was refractory disease.Disclosure of Interests:Mónica Rodríguez Carballeira: None declared, Roser Solans: None declared, Raquel Ríos Fernández: None declared, Begoña Escalante: None declared, Brenda Maure: None declared, Alejandra Fernández: None declared, Robert Hurtado: None declared, Rafael Boldova: None declared, Gerard Espinosa Speakers bureau: Glaxo-Smith-Kline, Janssen, Boehringer, Rovi
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Alarcón L, López-Mora D, Fernández A, Carrió I, Camacho V. Utilidad de la PET/TC con 18F-FDG en el diagnóstico de la encefalitis límbica paraneoplásica. Rev Esp Med Nucl Imagen Mol 2020; 39:173-174. [DOI: 10.1016/j.remn.2019.10.001] [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] [Received: 07/30/2019] [Revised: 10/23/2019] [Accepted: 10/24/2019] [Indexed: 11/28/2022]
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Muñoz M, García-Casco JM, Alves E, Benítez R, Barragán C, Caraballo C, Fernández AI, García F, Núñez Y, Óvilo C, Fernández A, Rodríguez C, Silió L. Development of a 64 SNV panel for breed authentication in Iberian pigs and their derived meat products. Meat Sci 2020; 167:108152. [PMID: 32361066 DOI: 10.1016/j.meatsci.2020.108152] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 04/07/2020] [Accepted: 04/14/2020] [Indexed: 11/19/2022]
Abstract
Spanish legislation regulates the labelling of Iberian pig meat and dry-cured products, which are labelled as "Ibérico" or "100% Ibérico" when they come from Duroc x Iberian crossbred or Iberian purebred pigs. Although the analytical authentication of breed origin is not mandatory, a genetic diagnostic tool is demanded by producers and consumers. We have designed a 64 Single Nucleotide Variant genotyping panel displaying extreme allelic frequencies between Duroc and Iberian purebred samples. Average proportions of Iberian alleles of 0.99, 0.01, 0.77 and 0.48 were estimated by admixture clustering analysis of known origin samples, for Iberian and Duroc purebred, 75% Iberian and 50% Iberian classes, respectively. A supervised analysis with 1419 samples showed some overlapping between contiguous classes, but the calculated degrees of separability ranged from 0.800 to 0.996, exceeding the threshold value (0.70) for considering suitable for prediction. Therefore, this panel is a useful genetic tool to infer purebred or crossbred Iberian origin of live animals, meat and dry-cured products.
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Affiliation(s)
- M Muñoz
- Centro de I+D en Cerdo Ibérico INIA-Zafra, 06300 Zafra, Badajoz, Spain; Departamento de Mejora Genética Animal, INIA, 28040 Madrid, Spain.
| | - J M García-Casco
- Centro de I+D en Cerdo Ibérico INIA-Zafra, 06300 Zafra, Badajoz, Spain; Departamento de Mejora Genética Animal, INIA, 28040 Madrid, Spain
| | - E Alves
- Departamento de Mejora Genética Animal, INIA, 28040 Madrid, Spain
| | - R Benítez
- Departamento de Mejora Genética Animal, INIA, 28040 Madrid, Spain
| | - C Barragán
- Departamento de Mejora Genética Animal, INIA, 28040 Madrid, Spain
| | - C Caraballo
- Centro de I+D en Cerdo Ibérico INIA-Zafra, 06300 Zafra, Badajoz, Spain
| | - A I Fernández
- Departamento de Mejora Genética Animal, INIA, 28040 Madrid, Spain
| | - F García
- Departamento de Mejora Genética Animal, INIA, 28040 Madrid, Spain
| | - Y Núñez
- Departamento de Mejora Genética Animal, INIA, 28040 Madrid, Spain
| | - C Óvilo
- Departamento de Mejora Genética Animal, INIA, 28040 Madrid, Spain
| | - A Fernández
- Departamento de Mejora Genética Animal, INIA, 28040 Madrid, Spain
| | - C Rodríguez
- Departamento de Mejora Genética Animal, INIA, 28040 Madrid, Spain
| | - L Silió
- Departamento de Mejora Genética Animal, INIA, 28040 Madrid, Spain
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Pifarré P, Simó M, Gispert JD, Plaza P, Fernández A, Pujol J. Diazepam and Jacobson's Progressive Relaxation Show Similar Attenuating Short-Term Effects on Stress-Related Brain Glucose Consumption. Eur Psychiatry 2020; 30:187-92. [DOI: 10.1016/j.eurpsy.2014.03.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 03/10/2014] [Accepted: 03/16/2014] [Indexed: 10/25/2022] Open
Abstract
AbstractA non-pharmacological method to reduce anxiety is “progressive relaxation” (PR). The aim of the method is to reduce mental stress and associated mental processes by means of progressive suppression of muscle tension. The study was addressed to evaluate changes in brain glucose metabolism induced by PR in patients under a stressing state generated by a diagnostic medical intervention. The effect of PR was compared to a dose of sublingual diazepam, with the prediction that both interventions would be associated with a reduction in brain metabolism. Eighty-four oncological patients were assessed with 18F-fluorodeoxyglucose-positron emission tomography. Maps of brain glucose distribution from 28 patients receiving PR were compared with maps from 28 patients receiving sublingual diazepam and with 28 patients with no treatment intervention. Compared to reference control subjects, the PR and diazepam groups showed a statistically significant, bilateral and generalized cortical hypometabolism. Regions showing the most prominent changes were the prefrontal cortex and anterior cingulate cortex. No significant differences were identified in the direct comparison between relaxation technique and sublingual diazepam. Our findings suggest that relaxation induced by a physical/psychological procedure can be as effective as a reference anxiolytic in reducing brain activity during a stressful state.
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Bordes A, Campos-Herrero M, Fernández A, Vega N, Rodríguez J, Palop L. Predisposing and Prognostic Factors of Fungal Peritonitis in Peritoneal Dialysis. Perit Dial Int 2020. [DOI: 10.1177/089686089501500318] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
| | | | - A. Fernández
- Microbiology and Nephrology Services Hospital Nuestra Señora del Pino
| | - N. Vega
- Microbiology and Nephrology Services Hospital Nuestra Señora del Pino
| | - J.C. Rodríguez
- Microbiology and Nephrology Services Hospital Nuestra Señora del Pino
| | - L. Palop
- Microbiology and Nephrology Services Hospital Nuestra Señora del Pino
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Ríos A, López-Navas A, Gutiérrez PR, Gómez FJ, Iriarte J, Herruzo R, Blanco G, Llorca FJ, Asunsolo A, Sánchez P, Fernández A, De Jesús MT, Lana A, Fuentes L, Hernández JR, Virseda J, Yelamos J, Bondía JA, Carrillo J, Sánchez Á, Alarcón LM, Parrilla P, Ramírez P. What Reasons Lead Spanish Medical Students Not to Be in Favor of Organ Donation? Transplant Proc 2020; 52:443-445. [PMID: 32057503 DOI: 10.1016/j.transproceed.2019.11.040] [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] [Received: 08/29/2019] [Accepted: 11/06/2019] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Despite sensitization of medical students toward the donation of organs, a non-negligible percentage of students are not in favor of donation. OBJECTIVE To analyze the reasons of Spanish medical students who do not have a favorable attitude toward the donation of their own organs after death. METHOD The population under study is medical students in Spanish universities, using the database of the International Donor Collaborative Project, stratified by geographic area and academic year. The questionnaire completion was anonymous and self-administered. The study group is medical students with an unfavorable attitude toward organ donation. The assessment instrument used is a validated questionnaire of attitude toward the donation of organs for transplant, "PCID-DTO-Ríos." The reasons against the donation are valued in the questionnaire through a question. RESULTS Of the participants included in the PCID, students who are not in favor of organ donation were selected (n = 1899). Of them, 8.1% (n = 154) are against and 91.1% (n = 1745) are doubtful. The main reasons indicated are the fear of apparent death in 11.4% of respondents, fear of possible mutilation after donation in 11.1%, and religious reasons in 2.6%. Of those, 6.9% indicate other reasons but do not clearly specify the reasons, using words such as "fear" (2.5%) or "doubts about the process" (4.1%); 66.2% (n = 1257) indicated an "assertive refusal" ("I don't want to express my reasons"). CONCLUSION Twenty percent of Spanish medical students are not in favor of donating their organs and are not in favor of showing their reasons.
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Affiliation(s)
- A Ríos
- International Collaborative Donor Project ("Proyecto Colaborativo Internacional Donante"), Murcia, Spain; Department of Surgery, Paediatrics, Obstetrics y Gynaecology, University of Murcia, Murcia, Spain; Transplant Unit, Surgery Service, IMIB - Virgen de la Arrixaca University Clinical Hospital, Murcia, Spain; Regional Transplant Center, Ministry of Health and Consumer Affairs of the Region of Murcia, Murcia, Spain.
| | - A López-Navas
- International Collaborative Donor Project ("Proyecto Colaborativo Internacional Donante"), Murcia, Spain; Department of Psychology, Catholic University of Murcia (UCAM), Murcia, Spain
| | - P R Gutiérrez
- Urology Service (University Hospital Complex of the Canary Islands, CHUC) and Department of Surgery (University of La Laguna, ULL) San Cristóbal de La Laguna, Tenerife, Spain
| | - F J Gómez
- University of Granada, Granada, Spain
| | - J Iriarte
- University of Navarra, Navarra, Spain
| | - R Herruzo
- Autonomous University of Madrid, Madrid, Spain
| | - G Blanco
- BPH Surgery and Liver Transplant Service, Badajoz University Hospital Complex, Infanta Cristina Hospital, Badajoz, Spain
| | - F J Llorca
- University of Cantabria, Santander, Spain
| | - A Asunsolo
- Department of Surgery, Medical and Social Sciences, Faculty of Medicine and Health Sciences, Universidad de Alcalá Scientific-Technological Campus, Alcalá de Henares, Madrid, Spain
| | - P Sánchez
- Faculty of Medicine, University of Málaga, Málaga, Spain
| | - A Fernández
- Department of Basic Biomedical Sciences, Faculty of Biomedical Sciences, Universidad Europea de Madrid, Madrid, Spain
| | | | - A Lana
- Faculty of Medicine and Health Sciences, Area of Preventive Medicine and Public Health, University of Oviedo, Oviedo, Spain
| | - L Fuentes
- Department of Pharmacology and Physiology School of Health and Sports Sciences, University of Zaragoza, Huesca, Spain
| | - J R Hernández
- University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - J Virseda
- University of Castilla La Mancha, Albacete, Spain
| | - J Yelamos
- Endocrinology and Nutrition Service, Virgen de la Arrixaca University Clinical Hospital, El Palmar, Murcia Health Service, Murcia, Spain
| | - J A Bondía
- Faculty of Medicine, University of Málaga, Málaga, Spain
| | - J Carrillo
- International Collaborative Donor Project ("Proyecto Colaborativo Internacional Donante"), Murcia, Spain; Department of Surgery, Paediatrics, Obstetrics y Gynaecology, University of Murcia, Murcia, Spain
| | - Á Sánchez
- International Collaborative Donor Project ("Proyecto Colaborativo Internacional Donante"), Murcia, Spain
| | - L Martínez Alarcón
- International Collaborative Donor Project ("Proyecto Colaborativo Internacional Donante"), Murcia, Spain; Transplant Unit, Surgery Service, IMIB - Virgen de la Arrixaca University Clinical Hospital, Murcia, Spain
| | - P Parrilla
- Department of Surgery, Paediatrics, Obstetrics y Gynaecology, University of Murcia, Murcia, Spain; Transplant Unit, Surgery Service, IMIB - Virgen de la Arrixaca University Clinical Hospital, Murcia, Spain
| | - P Ramírez
- International Collaborative Donor Project ("Proyecto Colaborativo Internacional Donante"), Murcia, Spain; Department of Surgery, Paediatrics, Obstetrics y Gynaecology, University of Murcia, Murcia, Spain; Transplant Unit, Surgery Service, IMIB - Virgen de la Arrixaca University Clinical Hospital, Murcia, Spain; Regional Transplant Center, Ministry of Health and Consumer Affairs of the Region of Murcia, Murcia, Spain
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Ríos A, López-Navas A, Gutiérrez PR, Gómez FJ, Iriarte J, Herruzo R, Blanco G, Llorca FJ, Asunsolo A, Sánchez P, Fernández A, De Jesús MT, Lana A, Fuentes L, Hernández JR, Virseda J, Yelamos J, Bondía JA, Carrillo J, Sánchez Á, Alarcón LM, Parrilla P, Ramírez P. Are Medical Students of Non-Spanish Nationality Studying in Spain as Sensitized to Transplantation as Those of Spanish Nationality? Transplant Proc 2020; 52:435-438. [PMID: 32057498 DOI: 10.1016/j.transproceed.2019.11.039] [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] [Received: 08/29/2019] [Accepted: 11/06/2019] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Awareness of organ donation among Spanish doctors and medical students is very positive. However, the emerging group of professionals of non-Spanish nationality studying in Spain has not been analyzed. OBJECTIVE To analyze the differences in the attitudes toward the different types of donation among medical students, according to their nationality. METHODS The population under study is medical students in Spanish universities using the database of the International Collaborative Donor Project, stratified by geographic area and academic year. Groups under study include students of non-Spanish nationality as group 1 (n = 1570) and students of Spanish nationality as Group 2 (n = 7705). Instruments are validated questionnaires of attitude toward donation "PCID-DTO-Ríos," "PCID-DVR-Ríos," "PCID-DVH-Ríos," and "PCID-XenoTx-Ríos." RESULTS The attitude toward the donation of own organs after death is similar in both groups (P = .703). Non-Spaniards are 79.2% in favor compared to 79.6% of Spaniards. Living kidney donation, both unrelated (33.3% vs 29.3% in favor; P = .001) and related (91.2% vs 89, 6% in favor; P = .047), is more favorable among non-Spanish students. There are no differences regarding non-related living liver donation (29.7% vs 29.3% in favor; P = .063), but there are differences in the results for related living liver donation (94.1% vs 88%; P < .001). The attitude toward xenotransplantation of organs is similar (80.8% vs 80.8%; P = .999). CONCLUSIONS Awareness of the donation of organs among Spanish medical students is similar to non-Spanish students studying in Spain, except the attitude toward living donation.
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Affiliation(s)
- A Ríos
- International Collaborative Donor Project ("Proyecto Colaborativo Internacional Donante"), Murcia, Spain; Department of Surgery, Paediatrics, Obstetrics y Gynaecology, University of Murcia, Murcia, Spain; Transplant Unit, Surgery Service, IMIB - Virgen de la Arrixaca University Clinical Hospital, Murcia, Spain; Regional Transplant Center, Ministry of Health and Consumer Affairs of the Region of Murcia, Murcia, Spain.
| | - A López-Navas
- International Collaborative Donor Project ("Proyecto Colaborativo Internacional Donante"), Murcia, Spain; Department of Psychology, Catholic University of Murcia (UCAM), Murcia, Spain
| | - P R Gutiérrez
- Urology Service (University Hospital Complex of the Canary Islands, CHUC) and Department of Surgery (University of La Laguna, ULL) San Cristóbal de La Laguna, Tenerife, Spain
| | - F J Gómez
- University of Granada, Granada, Spain
| | - J Iriarte
- University of Navarra, Navarra, Spain
| | - R Herruzo
- Autonomous University of Madrid, Madrid, Spain
| | - G Blanco
- BPH Surgery and Liver Transplant Service. Badajoz University Hospital Complex, Infanta Cristina Hospital, Badajoz, Spain
| | - F J Llorca
- University of Cantabria, Santander, Spain
| | - A Asunsolo
- Department of Surgery, Medical and Social Sciences, Faculty of Medicine and Health Sciences, Universidad de Alcalá Scientific-Technological Campus, Alcalá de Henares, Madrid, Spain
| | - P Sánchez
- Faculty of Medicine, University of Málaga, Málaga, Spain
| | - A Fernández
- Department of Basic Biomedical Sciences, Faculty of Biomedical Sciences, Universidad Europea de Madrid, Madrid, Spain
| | | | - A Lana
- Faculty of Medicine and Health Sciences, Area of Preventive Medicine and Public Health, University of Oviedo, Oviedo, Spain
| | - L Fuentes
- Department of Pharmacology and Physiology School of Health and Sports Sciences, University of Zaragoza, Huesca, Spain
| | - J R Hernández
- University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - J Virseda
- University of Castilla La Mancha, Albacete, Spain
| | - J Yelamos
- Endocrinology and Nutrition Service. Virgen de la Arrixaca University Clinical Hospital, El Palmar, Murcia Health Service, Murcia, Spain
| | - J A Bondía
- Faculty of Medicine, University of Málaga, Málaga, Spain
| | - J Carrillo
- International Collaborative Donor Project ("Proyecto Colaborativo Internacional Donante"), Murcia, Spain; Department of Surgery, Paediatrics, Obstetrics y Gynaecology, University of Murcia, Murcia, Spain
| | - Á Sánchez
- International Collaborative Donor Project ("Proyecto Colaborativo Internacional Donante"), Murcia, Spain
| | - L Martínez Alarcón
- International Collaborative Donor Project ("Proyecto Colaborativo Internacional Donante"), Murcia, Spain; Transplant Unit, Surgery Service, IMIB - Virgen de la Arrixaca University Clinical Hospital, Murcia, Spain
| | - P Parrilla
- Department of Surgery, Paediatrics, Obstetrics y Gynaecology, University of Murcia, Murcia, Spain; Transplant Unit, Surgery Service, IMIB - Virgen de la Arrixaca University Clinical Hospital, Murcia, Spain
| | - P Ramírez
- International Collaborative Donor Project ("Proyecto Colaborativo Internacional Donante"), Murcia, Spain; Department of Surgery, Paediatrics, Obstetrics y Gynaecology, University of Murcia, Murcia, Spain; Transplant Unit, Surgery Service, IMIB - Virgen de la Arrixaca University Clinical Hospital, Murcia, Spain; Regional Transplant Center, Ministry of Health and Consumer Affairs of the Region of Murcia, Murcia, Spain
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Ríos A, López-Navas A, Gutiérrez PR, Gómez FJ, Iriarte J, Herruzo R, Blanco G, Llorca FJ, Asunsolo A, Sánchez P, Fernández A, De Jesús MT, Lana A, Fuentes L, Hernández JR, Virseda J, Yelamos J, Bondía JA, Carrillo J, Sánchez Á, Alarcón LM, Parrilla P, Ramírez P. Information About Donation and Organ Transplantation Among Spanish Medical Students. Transplant Proc 2020; 52:446-448. [PMID: 32057497 DOI: 10.1016/j.transproceed.2019.11.041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 11/06/2019] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Health professionals are asked to promote health, especially organ transplantation; however, they do not always have specific training. OBJECTIVE To analyze information about donation and organ transplantation among Spanish medical students. METHOD The population under study is medical students in Spanish universities using the database of the International Donor Collaborative Project, stratified by geographic area and academic year (n = 9275). The instrument used is the attitude questionnaire for organ donation for "PCID-DTO-Ríos" transplantation, validated with an explained variance of 63.203% and α = 0.834. The Student t test was applied together with the χ2 test, complemented by an analysis of the remainders, and Fisher's exact test was applied. RESULTS Of the students, 74% indicate that they have received information from university professors about organ transplant. Concerning specific issues with the donation, it is notable that only 66.7% (n = 6190) know and accept the concept of brain death as the death of a person. However, only 22% consider themselves as having good information, and 35.3% indicate that their information is scarce or void. Students indicate having received information about transplant from other extra-university sources, such as television and Internet (80.9%), books and magazines (73.2%), and the press (66.9%). From the information obtained in the sociofamilial field, 60.7% have obtained information from the family and 58.1% from friends. Of this information, 9% has been negative from friends, 7.5% from family, 6% from the Internet and television, and 4% from university professors. CONCLUSION Spanish medical students believe they have little information about organ transplantation and have received negative information.
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Affiliation(s)
- A Ríos
- International Collaborative Donor Project ("Proyecto Colaborativo Internacional Donante"), Murcia, Spain; Department of Surgery, University of Murcia, Murcia, Spain; Transplant Unit, Surgery Service, IMIB - Virgen de la Arrixaca University Clinical Hospital, Murcia, Spain; Regional Transplant Center, Ministry of Health and Consumer Affairs of the Region of Murcia, Murcia, Spain.
| | - A López-Navas
- International Collaborative Donor Project ("Proyecto Colaborativo Internacional Donante"), Murcia, Spain; Department of Psychology, Catholic University of Murcia (UCAM), Murcia, Spain
| | - P R Gutiérrez
- Urology Service (University Hospital Complex of the Canary Islands, CHUC) and Department of Surgery (University of La Laguna, ULL) San Cristóbal de La Laguna, Tenerife, Spain
| | - F J Gómez
- University of Granada, Granada, Spain
| | - J Iriarte
- University of Navarra, Navarra, Spain
| | - R Herruzo
- Autonomous University of Madrid, Madrid, Spain
| | - G Blanco
- BPH Surgery and Liver Transplant Service, Badajoz University Hospital Complex, Infanta Cristina Hospital, Badajoz, Spain
| | - F J Llorca
- University of Cantabria, Santander, Spain
| | - A Asunsolo
- Department of Surgery, Medical and Social Sciences, Faculty of Medicine and Health Sciences, Universidad de Alcala Scientific-Technological Campus, Alcala de Henares, Madrid, Spain
| | - P Sánchez
- Faculty of Medicine, University of Málaga, Málaga, Spain
| | - A Fernández
- Department of Basic Biomedical Sciences, Faculty of Biomedical Sciences, Universidad Europea de Madrid, Madrid, Spain
| | | | - A Lana
- Faculty of Medicine and Health Sciences, Area of Preventive Medicine and Public Health, University of Oviedo, Oviedo, Spain
| | - L Fuentes
- Department of Pharmacology and Physiology School of Health and Sports Sciences, University of Zaragoza, Huesca, Spain
| | - J R Hernández
- University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - J Virseda
- University of Castilla La Mancha, Albacete, Spain
| | - J Yelamos
- Endocrinology and Nutrition Service. Virgen de la Arrixaca University Clinical Hospital, El Palmar, Murcia Health Service, Murcia, Spain
| | - J A Bondía
- Faculty of Medicine, University of Málaga, Málaga, Spain
| | - J Carrillo
- International Collaborative Donor Project ("Proyecto Colaborativo Internacional Donante"), Murcia, Spain; Department of Surgery, University of Murcia, Murcia, Spain
| | - Á Sánchez
- International Collaborative Donor Project ("Proyecto Colaborativo Internacional Donante"), Murcia, Spain
| | - L Martínez Alarcón
- International Collaborative Donor Project ("Proyecto Colaborativo Internacional Donante"), Murcia, Spain; Transplant Unit, Surgery Service, IMIB - Virgen de la Arrixaca University Clinical Hospital, Murcia, Spain
| | - P Parrilla
- Department of Surgery, University of Murcia, Murcia, Spain; Transplant Unit, Surgery Service, IMIB - Virgen de la Arrixaca University Clinical Hospital, Murcia, Spain
| | - P Ramírez
- International Collaborative Donor Project ("Proyecto Colaborativo Internacional Donante"), Murcia, Spain; Department of Surgery, University of Murcia, Murcia, Spain; Transplant Unit, Surgery Service, IMIB - Virgen de la Arrixaca University Clinical Hospital, Murcia, Spain; Regional Transplant Center, Ministry of Health and Consumer Affairs of the Region of Murcia, Murcia, Spain
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Fernández A, Talaverano MI, Pérez‐Nevado F, Boselli E, Cordeiro AM, Martillanes S, Foligni R, Martín‐Vertedor D. Evaluation of phenolics and acrylamide and their bioavailability in high hydrostatic pressure treated and fried table olives. J FOOD PROCESS PRES 2020. [DOI: 10.1111/jfpp.14384] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- A. Fernández
- Technological Institute of Food and Agriculture CICYTEX‐INTAEX Junta of Extremadura BadajozSpain
| | - M. I. Talaverano
- Technological Institute of Food and Agriculture CICYTEX‐INTAEX Junta of Extremadura BadajozSpain
| | - F. Pérez‐Nevado
- Department of Animal Production and Food Science Escuela de Ingenierías Agrarias Universidad de Extremadura Badajoz Spain
| | - E. Boselli
- Faculty of Science and Technology Free University of Bozen‐Bolzano Bozen‐Bolzano Italy
| | - A. M. Cordeiro
- National Agricultural and Veterinary Research IP INIAV, IP. Pólo Elvas Elvas Portugal
| | - S. Martillanes
- Technological Institute of Food and Agriculture CICYTEX‐INTAEX Junta of Extremadura BadajozSpain
| | - R. Foligni
- Department of Agricultural, Food and Environmental Sciences Marche Polytechnic University Ancona Italy
| | - D. Martín‐Vertedor
- Technological Institute of Food and Agriculture CICYTEX‐INTAEX Junta of Extremadura BadajozSpain
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Martín-Vertedor D, Fernández A, Hernández A, Arias-Calderón R, Delgado-Adámez J, Pérez-Nevado F. Acrylamide reduction after phenols addition to Californian-style black olives. Food Control 2020. [DOI: 10.1016/j.foodcont.2019.106888] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Abstract
Using CRISPR-based genome-editing techniques, we are able to generate a variety of new mouse models of several types of diseases. These animal models will be instrumental not only for enabling the comprehension of a particular disease and its underlying molecular mechanism but also as unique recipients for testing novel and innovative therapeutic approaches that are being currently explored. This chapter describes detailed step-by-step protocols, reagents, and equipment required for successful generation of genome-edited mice using CRISPR tools.
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Affiliation(s)
- D Muñoz-Santos
- National Centre for Biotechnology (CNB-CSIC) and Biomedical Research Networking Centre for Rare Diseases (CIBERER-ISCIII), Madrid, Spain
| | - L Montoliu
- National Centre for Biotechnology (CNB-CSIC) and Biomedical Research Networking Centre for Rare Diseases (CIBERER-ISCIII), Madrid, Spain
| | - A Fernández
- National Centre for Biotechnology (CNB-CSIC) and Biomedical Research Networking Centre for Rare Diseases (CIBERER-ISCIII), Madrid, Spain.
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Sciarini LS, Steffolani ME, Fernández A, Paesani C, Pérez GT. Gluten-free breadmaking affected by the particle size and chemical composition of quinoa and buckwheat flour fractions. FOOD SCI TECHNOL INT 2019; 26:321-332. [PMID: 31826661 DOI: 10.1177/1082013219894109] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This study aimed at assessing the effect of physicochemical properties and the particle size of different fractions of buckwheat and quinoa on the behaviour of gluten-free dough and bread quality. Quinoa and buckwheat grains were milled with a hammer mill and then separated in three fractions. These fractions where then re-milled with a cyclonic mill to obtain samples of similar sizes. Results showed that the chemical composition of these fractions was very different and played a major role on bread quality. Proteins, lipids and fibre negatively affected bread quality, whereas starch-rich fractions were more adequate for breadmaking. Re-milling quinoa and buckwheat fractions increased bread volume, although chemical composition still influenced bread properties. For hammer-milled fractions, both the finest fractions resulted in breads with higher technological quality, as well as a final product with more fibre, minerals and proteins.
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Affiliation(s)
- L S Sciarini
- Facultad de Ciencias Agropecuarias, Laboratorio de Química Biológica, Universidad Nacional de Córdoba (FCA-UNC), Córdoba, Argentina.,Instituto de Ciencia y Tecnología de Alimentos Córdoba (ICYTAC), CONICET-UNC, Córdoba, Argentina
| | - M E Steffolani
- Facultad de Ciencias Agropecuarias, Laboratorio de Química Biológica, Universidad Nacional de Córdoba (FCA-UNC), Córdoba, Argentina.,Instituto de Ciencia y Tecnología de Alimentos Córdoba (ICYTAC), CONICET-UNC, Córdoba, Argentina
| | - A Fernández
- Instituto de Ciencia y Tecnología de Alimentos Córdoba (ICYTAC), CONICET-UNC, Córdoba, Argentina
| | - C Paesani
- Instituto de Ciencia y Tecnología de Alimentos Córdoba (ICYTAC), CONICET-UNC, Córdoba, Argentina
| | - G T Pérez
- Facultad de Ciencias Agropecuarias, Laboratorio de Química Biológica, Universidad Nacional de Córdoba (FCA-UNC), Córdoba, Argentina.,Instituto de Ciencia y Tecnología de Alimentos Córdoba (ICYTAC), CONICET-UNC, Córdoba, Argentina
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Immerzeel WW, Lutz AF, Andrade M, Bahl A, Biemans H, Bolch T, Hyde S, Brumby S, Davies BJ, Elmore AC, Emmer A, Feng M, Fernández A, Haritashya U, Kargel JS, Koppes M, Kraaijenbrink PDA, Kulkarni AV, Mayewski PA, Nepal S, Pacheco P, Painter TH, Pellicciotti F, Rajaram H, Rupper S, Sinisalo A, Shrestha AB, Viviroli D, Wada Y, Xiao C, Yao T, Baillie JEM. Importance and vulnerability of the world’s water towers. Nature 2019; 577:364-369. [DOI: 10.1038/s41586-019-1822-y] [Citation(s) in RCA: 477] [Impact Index Per Article: 95.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 11/11/2019] [Indexed: 11/09/2022]
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Salaheldeen M, Vega V, Caballero-Flores R, Prida VM, Fernández A. Influence of nanoholes array geometrical parameters on magnetic properties of Dy-Fe antidot thin films. Nanotechnology 2019; 30:455703. [PMID: 31362273 DOI: 10.1088/1361-6528/ab36cc] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Nanoscale artificially engineered spintronic materials could be used to enlarge the storage density of magnetic recording media. For this purpose, magnetic nanostructures such as antidot arrays exhibiting high uniaxial magnetic anisotropy are new contestants in the field of ultrahigh density magnetic data storage devices. In this context, we focus on the synthesis of nanostructured magnetic materials consisting of Dy-Fe alloyed antidot thin films, deposited onto the surface of nanoporous alumina membranes served as patterned templates. Noticeable variations of in the in-plane magnetic anisotropy have been observed by modifying the layer thickness at both microscopic and macroscopic scales. The microscopic magnetic properties have been locally studied by Nano-MOKE magnetometry. For thinner antidot samples with 15, 20 and 25 nm in thickness, a tri-axial in-plane magnetic anisotropy has been detected. Meanwhile, for thicker antidot samples (40-60 nm of layer thickness), an in-plane uniaxial magnetic anisotropy has been noted. We attribute these changes in the magnetic anisotropy to the strong correlation between the edge-to-edge distance among adjacent nanoholes, W, and the local magnetic anisotropy of antidot samples. The effective magnetic anisotropy exhibits an unexpected crossover from the in-plane to out-of-plane direction due to the increasing of the effective perpendicular magnetic anisotropy with varying the layer thickness of antidot thin films. Therefore, we detected a critical layer thickness, t = 25 nm for the Dy-Fe alloy antidot arrays, at which the appearance of the perpendicular magnetization is observed. Furthermore, an enhancement in the Curie temperature of the antidot arrays compared to the continuous thin films has been obtained. We attribute these effects to the complex magnetization reversal processes and the high thermal stability of the hexagonal structure of antidot arrays. These findings can be of high interest for the development of novel magnetic sensors and for thermo-magnetic recording patterned media based on template-assisted deposition techniques.
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Affiliation(s)
- M Salaheldeen
- Physics Department, Faculty of Science, Sohag University, 82524 Sohag, Egypt. Depto. Física, Universidad de Oviedo, C/Federico García Lorca 18, E-33007 Oviedo, Asturias, Spain
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Garcia Torralba E, Castellano Gauna D, Sobrevilla N, Guma J, Luengo M, Aparicio J, Sanchez-Muñoz A, Mellado B, Saenz A, Valverde C, Fernández A, Margeli M, Duran I, Fernandez S, Sastre J, Ros S, Maroto P, Aguilar J, Garcia del Muro X, Gonzalez Billalabeitia E. Prognosis of anaemia in disseminated testicular germ cell tumours. On behalf of the Spanish Germ Cell Cancer Group (SGCCG). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz249.080] [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: 11/13/2022] Open
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Llombart Cussac A, Medioni J, Colleoni M, Ettl J, Schmid P, Macpherson I, Gligorov J, Albanell J, Bellet Ezquerra M, Fernández A, Ruiz Borrego M, Gavilá-Gregori J, Wheatley D, Zamora P, Martínez E, Sampayo M, Riva F, Malfettone A, Pérez-García J, Cortés J. Palbociclib rechallenge in hormone receptor (HR)[+]/HER2[-] advanced breast cancer (ABC). PALMIRA trial. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz242.082] [Citation(s) in RCA: 2] [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: 11/13/2022] Open
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Gil-Flores L, Salvador MD, Penaranda-Foix FL, Dalmau A, Fernández A, Borrell A. Tribological and wear behaviour of alumina toughened zirconia nanocomposites obtained by pressureless rapid microwave sintering. J Mech Behav Biomed Mater 2019; 101:103415. [PMID: 31494446 DOI: 10.1016/j.jmbbm.2019.103415] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 08/28/2019] [Accepted: 09/02/2019] [Indexed: 10/26/2022]
Abstract
Dense alumina toughened zirconia nanocomposites (ATZ, 3Y-TZP with 20 wt% Al2O3) were densified by non-conventional microwave sintering technology at relatively low temperatures (1200 and 1300 °C). The sintering method and its effect on densification, microstructure, mechanical properties and tribological behaviour were investigated. The outcomes demonstrated that the density rose as the sintering temperature was higher, and therefore the mechanical properties were enhanced, reaching a maximum hardness (18.4 ± 0.4 GPa) and fracture toughness (5.7 ± 0.3MPa· m1/2). In addition, the samples were subjected to a tribological test in dry and wet conditions, using artificial saliva. In both cases, the coefficient of friction and wear volume for samples obtained by microwave sintering are lower than conventional samples, with the wear volume being two times higher in dry conditions than in wet conditions.
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Affiliation(s)
- L Gil-Flores
- Instituto de Tecnología de Materiales, Universitat Politècnica de València, Camino de Vera S/N, 46022, Valencia, Spain.
| | - M D Salvador
- Instituto de Tecnología de Materiales, Universitat Politècnica de València, Camino de Vera S/N, 46022, Valencia, Spain
| | - F L Penaranda-Foix
- Instituto de Aplicaciones de Las Tecnologías de La Información y de Las Comunicaciones Avanzadas (ITACA), Universitat Politècnica de València, Camino de Vera S/N, 46022, Valencia, Spain
| | - A Dalmau
- Instituto Universitario de Seguridad Industrial, Radiofísica y Medioambiental (ISIRYM) Universitat Politècnica de València, Camino de Vera S/N, 46022, Valencia, Spain
| | - A Fernández
- Centro de Investigación en Nanomateriales y Nanotecnología (CINN) (CSIC-UO-PA), Avenida de La Vega 4-6, 33940, El Entrego (Asturias), Spain
| | - A Borrell
- Instituto de Tecnología de Materiales, Universitat Politècnica de València, Camino de Vera S/N, 46022, Valencia, Spain
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