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Alder-Rangel A, Bailão AM, Herrera-Estrella A, Rangel AEA, Gácser A, Gasch AP, Campos CBL, Peters C, Camelim F, Verde F, Gadd GM, Braus G, Eisermann I, Quinn J, Latgé JP, Aguirre J, Bennett JW, Heitman J, Nosanchuk JD, Partida-Martínez LP, Bassilana M, Acheampong MA, Riquelme M, Feldbrügge M, Keller NP, Keyhani NO, Gunde-Cimerman N, Nascimento R, Arkowitz RA, Mouriño-Pérez RR, Naz SA, Avery SV, Basso TO, Terpitz U, Lin X, Rangel DEN. The IV International Symposium on Fungal Stress and the XIII International Fungal Biology Conference. Fungal Biol 2023; 127:1157-1179. [PMID: 37495306 DOI: 10.1016/j.funbio.2023.04.006] [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: 04/02/2023] [Accepted: 04/24/2023] [Indexed: 07/28/2023]
Abstract
For the first time, the International Symposium on Fungal Stress was joined by the XIII International Fungal Biology Conference. The International Symposium on Fungal Stress (ISFUS), always held in Brazil, is now in its fourth edition, as an event of recognized quality in the international community of mycological research. The event held in São José dos Campos, SP, Brazil, in September 2022, featured 33 renowned speakers from 12 countries, including: Austria, Brazil, France, Germany, Ghana, Hungary, México, Pakistan, Spain, Slovenia, USA, and UK. In addition to the scientific contribution of the event in bringing together national and international researchers and their work in a strategic area, it helps maintain and strengthen international cooperation for scientific development in Brazil.
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Affiliation(s)
| | - Alexandre Melo Bailão
- Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Alfredo Herrera-Estrella
- Unidad de Genómica Avanzada-Langebio, Centro de Investigación y de Estudios Avanzados Del IPN, Irapuato, Guanajuato, Mexico
| | | | - Attila Gácser
- HCEMM-USZ Fungal Pathogens Research Group, Department of Microbiology, University of Szeged, Szeged, Hungary
| | - Audrey P Gasch
- Center for Genomic Science Innovation, University of Wisconsin Madison, Madison, WI, USA
| | - Claudia B L Campos
- Instituto de Ciência e Tecnologia, Universidade Federal de São Paulo, São José Dos Campos, SP, Brazil
| | - Christina Peters
- Deutsche Forschungsgemeinschaft (DFG), Office Latin America, São Paulo, SP, Brazil
| | - Francine Camelim
- German Academic Exchange Service (DAAD), DWIH, Sao Paulo, SP, Brazil
| | - Fulvia Verde
- Department of Molecular and Cellular Pharmacology, University of Miami, Miller School of Medicine, Miami, FL, USA
| | - Geoffrey Michael Gadd
- Geomicrobiology Group, School of Life Sciences, University of Dundee, Dundee, Scotland, UK
| | - Gerhard Braus
- Institute for Microbiology and Genetics, Department of Molecular Microbiology and Genetics, Goettingen Center for Molecular Biosciences, University of Goettingen, Goettingen, Germany
| | - Iris Eisermann
- The Sainsbury Laboratory, University of East Anglia, Norwich, England, UK
| | - Janet Quinn
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, England, UK
| | - Jean-Paul Latgé
- Institute of Molecular Biology and Biotechnology FORTH and School of Medicine, University of Crete Heraklion, Greece
| | - Jesus Aguirre
- Departamento de Biología Celular y Del Desarrollo, Instituto de Fisiología Celular, Universidad Nacional Autonoma de México, Mexico City, Mexico
| | - Joan W Bennett
- Department of Plant Biology, Rutgers, State University of New Jersey, New Brunswick, NJ, USA
| | - Joseph Heitman
- Department of Molecular Genetics and Microbiology, Duke University, Durham, NC, USA
| | - Joshua D Nosanchuk
- Departments of Medicine and Microbiology and Immunology, Albert Einstein College of Medicine, The Bronx, NY, USA
| | | | - Martine Bassilana
- Institute of Biology Valrose, University Côte D'Azur, CNRS, INSERM, Nice, France
| | | | - Meritxell Riquelme
- Department of Microbiology, Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, Mexico
| | - Michael Feldbrügge
- Institute of Microbiology, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Nancy P Keller
- Department of Medical Microbiology, Department of Plant Pathology, University of Wisconsin, Madison, WI, USA
| | - Nemat O Keyhani
- Department of Microbiology and Cell Science, University of Florida, Gainesville, FL, USA
| | - Nina Gunde-Cimerman
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Raquel Nascimento
- Deutsche Forschungsgemeinschaft (DFG), Office Latin America, São Paulo, SP, Brazil
| | - Robert A Arkowitz
- Institute of Biology Valrose, University Côte D'Azur, CNRS, INSERM, Nice, France
| | - Rosa Reyna Mouriño-Pérez
- Department of Microbiology, Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, Mexico
| | - Sehar Afshan Naz
- Lab of Applied Microbiology and Clinical Mycology, Department of Microbiology, Federal Urdu University of Arts, Science and Technology, Gulshan Iqbal, Karachi, Pakistan
| | - Simon V Avery
- School of Life and Environmental Sciences, University of Nottingham, Nottingham, England, UK
| | - Thiago Olitta Basso
- Department of Chemical Engineering, Escola Politécnica, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Ulrich Terpitz
- Department of Biotechnology and Biophysics, Theodor-Boveri-Institute, Biocenter, Julius-Maximilians-Universität Würzburg, Wuerzburg, Germany
| | - Xiaorong Lin
- Department of Microbiology, University of Georgia, Athens, GA, USA
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Nau T, Schönmann C, Hindelang B, Riobo L, Doll A, Schneider S, Englert L, He H, Biedermann T, Darsow U, Lauffer F, Ntziachristos V, Aguirre J. Raster-scanning optoacoustic mesoscopy biomarkers for atopic dermatitis skin lesions. Photoacoustics 2023; 31:100513. [PMID: 37275325 PMCID: PMC10236218 DOI: 10.1016/j.pacs.2023.100513] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 05/10/2023] [Accepted: 05/19/2023] [Indexed: 06/07/2023]
Abstract
Atopic dermatitis (AD) is the most common chronic inflammatory skin disease worldwide. Its severity is assessed using scores that rely on visual observation of the affected body surface area, the morphology of the lesions and subjective symptoms, like pruritus or insomnia. Ideally, such scores should be complemented by objective and accurate measurements of disease severity to standardize disease scoring in routine care and clinical trials. Recently, it was shown that raster-scanning optoacoustic mesoscopy (RSOM) can provide detailed three-dimensional images of skin inflammation processes that capture the most relevant features of their pathology. Moreover, precise RSOM biomarkers of inflammation have been identified for psoriasis. However, the objectivity and validity of such biomarkers in repeated measurements have not yet been assessed for AD. Here, we report the results of a study on the repeatability of RSOM inflammation biomarkers in AD to estimate their precision. Optoacoustic imaging analysis revealed morphological inflammation biomarkers with precision well beyond standard clinical severity metrics. Our findings suggest that optoacoustic mesoscopy may be a good choice for quantitative evaluations of AD that are inaccessible by other methods. This could potentially enable the optimization of disease scoring and drug development.
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Affiliation(s)
- T. Nau
- Department of Dermatology and Allergology, Technical University of Munich, Munich, Germany
- Chair of Biological Imaging, Technical University of Munich, 81675 Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum Munich, 85764 Neuherberg, Germany
| | - C. Schönmann
- Department of Dermatology and Allergology, Technical University of Munich, Munich, Germany
- Chair of Biological Imaging, Technical University of Munich, 81675 Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum Munich, 85764 Neuherberg, Germany
| | - B. Hindelang
- Department of Dermatology and Allergology, Technical University of Munich, Munich, Germany
- Chair of Biological Imaging, Technical University of Munich, 81675 Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum Munich, 85764 Neuherberg, Germany
| | - L. Riobo
- Chair of Biological Imaging, Technical University of Munich, 81675 Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum Munich, 85764 Neuherberg, Germany
| | - A. Doll
- Department of Dermatology and Allergology, Technical University of Munich, Munich, Germany
| | - S. Schneider
- Department of Dermatology and Allergology, Technical University of Munich, Munich, Germany
- Chair of Biological Imaging, Technical University of Munich, 81675 Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum Munich, 85764 Neuherberg, Germany
| | - L. Englert
- Chair of Biological Imaging, Technical University of Munich, 81675 Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum Munich, 85764 Neuherberg, Germany
| | - H. He
- Chair of Biological Imaging, Technical University of Munich, 81675 Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum Munich, 85764 Neuherberg, Germany
| | - T. Biedermann
- Department of Dermatology and Allergology, Technical University of Munich, Munich, Germany
| | - U. Darsow
- Department of Dermatology and Allergology, Technical University of Munich, Munich, Germany
| | - F. Lauffer
- Department of Dermatology and Allergology, Technical University of Munich, Munich, Germany
| | - V. Ntziachristos
- Chair of Biological Imaging, Technical University of Munich, 81675 Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum Munich, 85764 Neuherberg, Germany
- Munich Institute of Robotics and Machine Intelligence (MIRMI), Technical University of Munich, 81675 Munich, Germany
| | - J. Aguirre
- Chair of Biological Imaging, Technical University of Munich, 81675 Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum Munich, 85764 Neuherberg, Germany
- Departamento de Tecnología Electrónica y de las Comunicaciones, Universidad Autonoma de Madrid, Madrid, Spain
- Instituto de Investigacion Sanitaria de la Fundacion Jimenez Diaz, Madrid, Spain
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Cruz G, Pedroza Gómez S, Arango A, Guevara PA, González C, Aguirre J, Valencia-Orozco A, Suguimoto AJ. Capillary Refill Time and Serum Lactate as Predictors of Mortality and Postoperative Extracorporeal Membrane Oxygenation Requirement in Congenital Heart Surgery. Children (Basel) 2023; 10:children10050875. [PMID: 37238423 DOI: 10.3390/children10050875] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 04/13/2023] [Accepted: 04/19/2023] [Indexed: 05/28/2023]
Abstract
Multiple tissue perfusion markers are described to guide therapy in critically ill pediatric patients undergoing congenital heart surgery. Given the advantages of capillary refill time, our goal is to determine its predictive capacity for mortality and postoperative extracorporeal oxygenation requirements in congenital heart surgery and compare it to serum lactate. We conducted a prospective cohort observational study in a single high-complexity university hospital. Serum lactate and capillary refill time were measured at five predetermined time points: preoperative, immediate postoperative, 6, 12, and 24 h after the surgery. Prolonged immediate postoperative, 6 h, and 12 h capillary refill time measurements turned out to be independent risk factors for both outcomes. The capillary refill time area under the curve ranged between 0.70 and 0.80, while the serum lactate resulted between 0.79 and 0.92 for both outcomes. Both tissue perfusion markers resulted in mortality and extracorporeal oxygenation requirement predictors. Given the advantages of capillary refill time over serum lactate, a monitoring strategy including these two perfusion markers should be considered for congenital heart surgeries.
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Affiliation(s)
- Gustavo Cruz
- Departamento de Anestesiología, Fundación Valle del Lili, Cra 98 No. 18-49, Cali 760032, Colombia
| | - Santiago Pedroza Gómez
- Centro de Investigaciones Clínicas, Fundación Valle del Lili, Cra 98 No. 18-49, Cali 760032, Colombia
| | - Akemi Arango
- Centro de Investigaciones Clínicas, Fundación Valle del Lili, Cra 98 No. 18-49, Cali 760032, Colombia
| | - Paula A Guevara
- Universidad Icesi, Facultad de Medicina, Departamento de Anestesiología, Calle 18 No. 122-135, Cali 760031, Colombia
| | - Carlos González
- Departamento de Anestesiología, Fundación Valle del Lili, Cra 98 No. 18-49, Cali 760032, Colombia
| | - Jesus Aguirre
- Departamento de Pediatría, Fundación Valle del Lili, Cra 98 No. 18-49, Cali 760032, Colombia
| | - Andrea Valencia-Orozco
- Centro de Investigaciones Clínicas, Fundación Valle del Lili, Cra 98 No. 18-49, Cali 760032, Colombia
| | - Antonio J Suguimoto
- Departamento de Anestesiología, Fundación Valle del Lili, Cra 98 No. 18-49, Cali 760032, Colombia
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Gonzalez D, Fortuna F, Fritzler AF, Jamardo JJ, Duarte E, Ibar C, Jacobsen DG, Estevez ME, Aguirre J, Garzón BB, Absi R, Repetto EM, Sanchez GD, Zopatti D, Fabre B. Assessment Of Antibody Levels In A Population Vaccinated With Sputnik V. Russ Open Med J 2023. [DOI: 10.15275/rusomj.2023.0102] [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: 03/31/2023] Open
Abstract
Objectives — The objective of our study was to assess humoral response in a population of health workers after vaccination with the first and second doses of Sputnik V. Methods — SARS-CoV-2 total antibodies (IgG and IgM) were measured, using the Centaur XPT autoanalyzer, Siemens®, in 530 serum samples taken from health workers in Buenos Aires vaccinated with Sputnik V. Results — After 21 days of the first dose application, 10 individuals (1.9%) presented antibody levels <1.0 (non-reactive), while 520 subjects (98.1%) responded with antibody values >1.0 (reactive). The results, obtained 21 days after the second dose, show that only 2 individuals (0.38%) had antibody levels <1.0 (non-reactive) and 528 (99.6%) responded with antibody values >1.0 (reactive). Conclusion — This study results implied that two doses of Sputnik V vaccine generated a proper antibody response in virtually the entire studied population.
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5
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Chinnappan J, Aguirre J, Marcus H, Azher Q, Bachuwa G. A Fatal Case of Systemic Calciphylaxis in the Gastrointestinal Tract: A Case Report and Literature Review. Cureus 2023; 15:e36641. [PMID: 37101995 PMCID: PMC10123329 DOI: 10.7759/cureus.36641] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/24/2023] [Indexed: 04/28/2023] Open
Abstract
Calciphylaxis is an infrequent yet lethal disease often associated with end-stage kidney disease (ESKD). The most common sites include proximal and distal extremities and the trunk, with few reported in the penis and very few as gastrointestinal (GI) disease. We report a case of systemic calciphylaxis in a middle-aged male, presenting with a colostomy leak and parastomal abscess. Workup revealed severe calcification of the intestinal arteries and ischemic colon necrosis. The patient underwent colectomy, antibiotic therapy, regular hemodialysis (HD), and sodium thiosulphate infusion with clinical stability. Histopathology of the colon revealed ischemic necrosis and pericolonic vessel calcification suggestive of calciphylaxis. It is an important differential to be considered in patients with risk factors presenting with symptoms of gastrointestinal hemorrhage and necrosis with perforation.
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Affiliation(s)
- Justine Chinnappan
- Internal Medicine, Hurley Medical Center - Michigan State University, Flint, USA
| | - Jesus Aguirre
- Internal Medicine, Hurley Medical Center - Michigan State University, Flint, USA
| | - Huda Marcus
- Internal Medicine, Hurley Medical Center - Michigan State University, Flint, USA
| | - Qazi Azher
- Pathology, Hurley Medical Center - Michigan State University, Flint, USA
| | - Ghassan Bachuwa
- Internal Medicine, Hurley Medical Center - Michigan State University, Flint, USA
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Barrios-Anderson A, Liu DD, Snead J, Wu E, Lee DJ, Robbins J, Aguirre J, Tang O, Garcia CM, Pucci F, Anderson MN, Syed S, Shaaya E, Gokaslan Z. In Reply to the Letter to the Editor Regarding "The National Student Neurosurgical Research Conference: A Research Conference for Medical Students". World Neurosurg 2021; 157:259. [PMID: 34929779 DOI: 10.1016/j.wneu.2021.09.142] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 09/30/2021] [Indexed: 11/19/2022]
Affiliation(s)
| | - David D Liu
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Jameson Snead
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Esther Wu
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - David J Lee
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - James Robbins
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Jesus Aguirre
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Oliver Tang
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Catherine M Garcia
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Francesco Pucci
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA; The Brown University Department of Neurosurgery, Providence, Rhode Island, USA
| | - Matthew N Anderson
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA; The Brown University Department of Neurosurgery, Providence, Rhode Island, USA
| | - Sohail Syed
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA; The Brown University Department of Neurosurgery, Providence, Rhode Island, USA
| | - Elias Shaaya
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA; The Brown University Department of Neurosurgery, Providence, Rhode Island, USA
| | - Ziya Gokaslan
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA; The Brown University Department of Neurosurgery, Providence, Rhode Island, USA
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Barrios-Anderson A, Wu E, Liu DD, Snead J, Lee DJ, Robbins J, Aguirre J, Tang O, Garcia CM, Pucci F, Anderson MN, Syed S, Shaaya E, Gokaslan ZL. A survey study examining the motivations, concerns, and perspectives of medical students engaging in neurosurgical research. Surg Neurol Int 2021; 12:490. [PMID: 34754540 PMCID: PMC8571239 DOI: 10.25259/sni_742_2021] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 09/10/2021] [Indexed: 01/05/2023] Open
Abstract
Background In a competitive landscape for neurosurgical residency admission, research productivity is increasingly important. Medical school applicants to neurosurgery report high numbers of "scholarly products" as published by the National Residency Match Program. Despite increased student involvement in research and productivity, to the best of our knowledge, no previous reported studies have examined student perspectives on their involvement in neurosurgical research. Methods For 2 consecutive years (February 2019 and February 2020), medical students (n = 55) from around the United States presented original research at the Student Neurosurgical Research Conference. Participants were administered a mixed-method survey designed to assess experiences and perspectives on engaging in neurosurgical research. Survey responses were analyzed independently by two researchers to assess for common themes and perspectives. Results Medical students engaged in all types of research work across nearly every neurosurgical subfield with "Basic/Bench Lab work" (38.5%) and "Chart Review" (23.1%) representing the majority of projects. Students commonly cited "curiosity/interest," and "residency application competitiveness" as main reasons for participation in research. About 66% of respondents reported experiencing anxiety/concern about research productivity "often" or "very often." Thematic analysis revealed that sources of research-related stress were (1) having enough publications to match into residency, and (2) having enough time in medical school to engage in research. Conclusion Medical students engaging in neurosurgical research are highly motivated students driven by scientific curiosity and pressure to prepare for competitive residency applications. Students experience anxiety due to time constraints in medical curricula and increasing demands for scholarly productivity.
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Affiliation(s)
- Adriel Barrios-Anderson
- Department of Neurosurgery, The Warren Alpert Medical School of Brown University, Providence, Rhode Island, United States
| | - Esther Wu
- Department of Neurosurgery, The Warren Alpert Medical School of Brown University, Providence, Rhode Island, United States
| | - David D Liu
- Department of Neurosurgery, The Warren Alpert Medical School of Brown University, Providence, Rhode Island, United States
| | - Jameson Snead
- Department of Neurosurgery, The Warren Alpert Medical School of Brown University, Providence, Rhode Island, United States
| | - David J Lee
- Department of Neurosurgery, The Warren Alpert Medical School of Brown University, Providence, Rhode Island, United States
| | - James Robbins
- Department of Neurosurgery, The Warren Alpert Medical School of Brown University, Providence, Rhode Island, United States
| | - Jesus Aguirre
- Department of Neurosurgery, The Warren Alpert Medical School of Brown University, Providence, Rhode Island, United States
| | - Oliver Tang
- Department of Neurosurgery, The Warren Alpert Medical School of Brown University, Providence, Rhode Island, United States
| | - Catherine M Garcia
- Department of Neurosurgery, The Warren Alpert Medical School of Brown University, Providence, Rhode Island, United States
| | - Francesco Pucci
- Department of Neurosurgery, The Warren Alpert Medical School of Brown University, Providence, Rhode Island, United States
| | - Matthew N Anderson
- Department of Neurosurgery, The Warren Alpert Medical School of Brown University, Providence, Rhode Island, United States
| | - Sohail Syed
- Department of Neurosurgery, The Warren Alpert Medical School of Brown University, Providence, Rhode Island, United States
| | - Elias Shaaya
- Department of Neurosurgery, The Warren Alpert Medical School of Brown University, Providence, Rhode Island, United States
| | - Ziya L Gokaslan
- Department of Neurosurgery, The Warren Alpert Medical School of Brown University, Providence, Rhode Island, United States
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Barrios-Anderson A, Liu DD, Snead J, Wu E, Lee D, Robbins J, Aguirre J, Tang OY, Garcia CM, Pucci F, Anderson M, Syed S, Shaaya E, Gokaslan ZL. Examining the Motivations, Concerns, and Perspectives of Medical Students Engaging in Neurological Surgery Research. Neurosurgery 2020. [DOI: 10.1093/neuros/nyaa447_163] [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: 11/14/2022] Open
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9
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Hindelang B, Aguirre J, Berezhnoi A, Biedermann T, Darsow U, Eberlein B, Ntziachristos V. Quantification of skin sensitivity to ultraviolet radiation using ultrawideband optoacoustic mesoscopy. Br J Dermatol 2020; 184:352-354. [PMID: 32762054 DOI: 10.1111/bjd.19463] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 07/31/2020] [Accepted: 07/31/2020] [Indexed: 11/29/2022]
Affiliation(s)
- B Hindelang
- Clinic for Dermatology and Allergology at Biderstein, Technical University of Munich, Munich, Germany.,Chair of Biological Imaging, School of Medicine, Technical University of Munich, Munich, Germany.,Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| | - J Aguirre
- Chair of Biological Imaging, School of Medicine, Technical University of Munich, Munich, Germany.,Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| | - A Berezhnoi
- Chair of Biological Imaging, School of Medicine, Technical University of Munich, Munich, Germany.,Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| | - T Biedermann
- Clinic for Dermatology and Allergology at Biderstein, Technical University of Munich, Munich, Germany
| | - U Darsow
- Clinic for Dermatology and Allergology at Biderstein, Technical University of Munich, Munich, Germany
| | - B Eberlein
- Clinic for Dermatology and Allergology at Biderstein, Technical University of Munich, Munich, Germany
| | - V Ntziachristos
- Chair of Biological Imaging, School of Medicine, Technical University of Munich, Munich, Germany.,Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
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Romero-Aguilar L, Cárdenas-Monroy C, Garrido-Bazán V, Aguirre J, Guerra-Sánchez G, Pardo JP. On the use of n-octyl gallate and salicylhydroxamic acid to study the alternative oxidase role. Arch Biochem Biophys 2020; 694:108603. [PMID: 32986977 DOI: 10.1016/j.abb.2020.108603] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 08/28/2020] [Accepted: 09/24/2020] [Indexed: 10/23/2022]
Abstract
The alternative oxidase (AOX) catalyzes the transfer of electrons from ubiquinol to oxygen without the translocation of protons across the inner mitochondrial membrane. This enzyme has been proposed to participate in the regulation of cell growth, sporulation, yeast-mycelium transition, resistance to reactive oxygen species, infection, and production of secondary metabolites. Two approaches have been used to evaluate AOX function: incubation of cells for long periods of time with AOX inhibitors or deletion of AOX gene. However, AOX inhibitors might have different targets. To test non-specific effects of n-octyl gallate (nOg) and salicylhydroxamic acid (SHAM) on fungal physiology we measured the growth and respiratory capacity of two fungal strains lacking (Ustilago maydis-Δaox and Saccharomyces cerevisiae) and three species containing the AOX gene (U. maydis WT, Debaryomyces hansenii, and Aspergillus nidulans). For U. maydis, a strong inhibition of growth and respiratory capacity by SHAM was observed, regardless of the presence of AOX. Similarly, A. nidulans mycelial growth was inhibited by low concentrations of nOg independently of AOX expression. In contrast, these inhibitors had no effect or had a minor effect on S. cerevisiae and D. hansenii growth. These results show that nOg and SHAM have AOX independent effects which vary in different microorganisms, indicating that studies based on long-term incubation of cells with these inhibitors should be considered as inconclusive.
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Affiliation(s)
- Lucero Romero-Aguilar
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Avenida Universidad 3000, Copilco, Cd. Universitaria, Coyoacán, 04510, Ciudad de México, Mexico
| | - Christian Cárdenas-Monroy
- Ciencia Forense, Universidad Nacional Autónoma de México, Avenida Universidad 3000, Copilco, Cd. Universitaria, Coyoacán, 04510, Ciudad de México, Mexico
| | - Verónica Garrido-Bazán
- Departamento de Biología Celular y del Desarrollo, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Avenida Universidad 3000, Copilco, Cd. Universitaria, Coyoacán, 04510, Ciudad de México, Mexico
| | - Jesus Aguirre
- Departamento de Biología Celular y del Desarrollo, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Avenida Universidad 3000, Copilco, Cd. Universitaria, Coyoacán, 04510, Ciudad de México, Mexico
| | - Guadalupe Guerra-Sánchez
- Departamento de Microbiología, Laboratorio de Bioquímica y Biotecnología de Hongos, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Carpio y Plan de Ayala S/N., Miguel Hidalgo, 11350, Ciudad de México, Mexico
| | - Juan Pablo Pardo
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Avenida Universidad 3000, Copilco, Cd. Universitaria, Coyoacán, 04510, Ciudad de México, Mexico.
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Forero-Delgadillo J, Torres-Canchala L, Galvis-Blanco L, Lasso R, Aguirre J, Duque N, Jimenez C, Arrunategui AM, Londoño H, Restrepo JM. Nefropatía por inmunoglobulina A en pediatría, desenlaces clínicos con diferentes esquemas de manejo. Rev Colomb Nefrol 2020. [DOI: 10.22265/acnef.8.1.422] [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: 11/27/2022] Open
Abstract
Introducción:la nefropatía por inmunoglobulina A (NIgA) es la enfermedad glomerular más común en el mundo. En Colombia, el 11-22 % de las glomerulonefritis primarias en niños corresponden a NIgA y de estos casos, el 30 % progresa a enfermedad renal terminal.
Objetivo: describir las características paraclínicas e histopatológicas de la NIgA, así como los resultados clínicos según tres tipos de tratamiento en pacientes pediátricos con esta enfermedad atendidos en un hospital de alta complejidad del suroccidente colombiano.
Materiales y métodos: estudio retrospectivo realizado en pacientes pediátricos de entre 1 mes y 18 años de edad con diagnóstico de NIgA. Las variables categóricas se presentaron como proporciones y las continuas con medianas y rango intercuartílico. Se usó la prueba de Fisher para comparar los tres esquemas de tratamiento.
Resultados:se incluyeron 58 pacientes pediátricos atendidos entre 1996 y 2013. La media de edad al inicio de síntomas fue 7,5±4,2 años y al momento de la biopsia renal, 10±3,8 años. El 77,6 % de los pacientes presentó hematuria microscópica y el 27,6 %, macroscópica. Además, el Histológicamente, el 10 % se clasificó como grado I, el 62 % como grado II, el 21 % como grado III y el 7 % como grado IV. Tres pacientes requirieron diálisis 81 % tuvo proteinuria, siendo severa el 29 %. y dos, trasplante renal. Los esquemas terapéuticos evaluados fueron: solo prednisona (n=20, 34,5 %), prednisona y mofetil micofenolato (MMF) (n=13, 22,4 %) y sin prednisona ni MMF (n=25, 43,1 %). La diferencia en la presencia de hematuria entre los grupos fue significativa (p>0,001), siendo más frecuente en el grupo sin prednisona ni MMF (68 %). No hubo diferencia entre los grupos de proteinuria, hipertensión arterial y valor de creatinina. La mediana de años entre la biopsia renal y el ultimo control fue de 4 años (RIC 1-7). La supervivencia de la función renal fue del 89,1 % a los 5 años.
Conclusión:la NIgA amerita reconocimiento temprano y seguimiento estricto, ya que puede tener desenlaces ominosos como enfermedad renal crónica.
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12
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Barrios-Anderson A, Liu DD, Snead J, Wu E, Lee DJ, Robbins J, Aguirre J, Tang O, Garcia CM, Pucci F, Anderson MN, Syed S, Shaaya E, Gokaslan ZL. The National Student Neurosurgical Research Conference: A Research Conference for Medical Students. World Neurosurg 2020; 146:e398-e404. [PMID: 33130142 DOI: 10.1016/j.wneu.2020.10.108] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [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: 08/21/2020] [Revised: 10/19/2020] [Accepted: 10/20/2020] [Indexed: 11/18/2022]
Abstract
OBJECTIVE Medical students interested in neurosurgery are increasingly involved in research, and research conferences have proven valuable for developing medical research experience and exposure. A research conference was designed for medical students interested in neurosurgery to present research. METHODS Our team designed an annual research conference at the Warren Alpert Medical School of Brown University in conjunction with the Neurosurgery and Neurology Departments. In February 2019, we hosted the first Student Neurosurgical and Neurological Research Conference (SNRC), the first national research conference, to our knowledge, designed for medical students to present neurosurgical research in the United States. The conference consisted of student poster/oral presentations, keynote speeches from clinical faculty, and surgical skills workstations. In February 2020, we hosted the second SNRC. After each conference, participants (n = 55) completed a survey to assess student perspectives of the conference. RESULTS Fifty-five medical students from around the nation attended the conferences to present their research. One hundred percent of participants affirmed that the conference fulfilled their primary reason for attending, which for most (54.5%) was the opportunity to present research. Thematic analysis revealed that students especially appreciated the "lower stress environment" and "opportunity to get feedback on their research." Notably, 97.6% of students felt the conference strengthened or increased their interest in neurosurgery. CONCLUSIONS Participants felt that the SNRC was a valuable opportunity to present research in an environment conducive for practice and improvement. Research conferences primarily for medical students may support the development of young researchers while increasing and strengthening interest in the field of neurosurgery.
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Affiliation(s)
| | - David D Liu
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Jameson Snead
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Esther Wu
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - David J Lee
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - James Robbins
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Jesus Aguirre
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Oliver Tang
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Catherine M Garcia
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Francesco Pucci
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA; The Brown University Department of Neurosurgery, Providence, Rhode Island, USA
| | - Matthew N Anderson
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA; The Brown University Department of Neurosurgery, Providence, Rhode Island, USA
| | - Sohail Syed
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA; The Brown University Department of Neurosurgery, Providence, Rhode Island, USA
| | - Elias Shaaya
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA; The Brown University Department of Neurosurgery, Providence, Rhode Island, USA
| | - Ziya L Gokaslan
- The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA; The Brown University Department of Neurosurgery, Providence, Rhode Island, USA
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13
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Ramírez-Moreno J, Muñoz Vega P, Espada S, Bartolomé Alberca S, Aguirre J, Peral D. Association between self-perceived psychological stress and transitory ischaemic attack and minor stroke: a case–control study. Neurología (English Edition) 2020. [DOI: 10.1016/j.nrleng.2017.09.004] [Citation(s) in RCA: 2] [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: 11/24/2022] Open
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14
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Hindelang B, Schönmann C, Aguirre J, Ntziachristos V, Biedermann T, Darsow U. Optoakustische Bildgebung – Licht rein, Schall raus? Akt Dermatol 2020. [DOI: 10.1055/a-1072-7195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
ZusammenfassungDie optoakustische Bildgebung ist eine neuartige Bildgebungsmodalität, welche auf der Aufzeichnung und Verarbeitung von Ultraschallsignalen basiert, die im Gewebe durch Absorption von Laserlicht entstehen. Die Methode vereint guten, auf Lichtabsorption beruhenden Kontrast mit hoher Eindringtiefe und ermöglicht sowohl morphologische als auch molekulare und funktionelle Bildgebung. Sie kann mit oder ohne Kontrastmittel eingesetzt werden und ist frei von ionisierender Strahlung. Darüber hinaus ist die Technik skalierbar und kann somit zur makroskopischen, mesoskopischen und mikroskopischen Bildgebung verwendet werden.In den letzten Jahren wurden eine Reihe verschiedener Systeme zur optoakustischen Bildgebung entwickelt und in vielfältigen Bereichen der präklinischen und klinischen Forschung eingesetzt. In der Dermatologie zeigten sich vielversprechende Anwendungsgebiete der Optoakustik insbesondere in der Untersuchung von Melanomen, Wächterlymphknoten und nicht-melanozytärem Hautkrebs sowie in der Charakterisierung von entzündlichen Hauterkrankungen.In diesem Review sollen die technischen Grundlagen der optoakustischen Bildgebung erläutert sowie der derzeitige Stand der Forschung hinsichtlich Anwendungsbereiche makroskopischer, mesoskopischer und mikroskopischer optoakustischer Systeme beschrieben und diskutiert werden.
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Affiliation(s)
- B. Hindelang
- Klinik und Poliklinik für Dermatologie und Allergologie am Biederstein, Technische Universität München
| | - C. Schönmann
- Klinik und Poliklinik für Dermatologie und Allergologie am Biederstein, Technische Universität München
- Lehrstuhl für biologische Bildgebung, Technische Universität München
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg
| | - J. Aguirre
- Lehrstuhl für biologische Bildgebung, Technische Universität München
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg
| | - V. Ntziachristos
- Lehrstuhl für biologische Bildgebung, Technische Universität München
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg
| | - T. Biedermann
- Klinik und Poliklinik für Dermatologie und Allergologie am Biederstein, Technische Universität München
| | - U. Darsow
- Klinik und Poliklinik für Dermatologie und Allergologie am Biederstein, Technische Universität München
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15
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Nasri Sissini M, Berchez F, Hall-Spencer J, Ghilardi-Lopes N, Carvalho VF, Schubert N, Koerich G, Diaz-Pulido G, Silva J, Serrão E, Assis J, Santos R, Floeter SR, Rörig L, Barufi JB, Bernardino AF, Francini-Filho R, Turra A, Hofmann LC, Aguirre J, Le Gall L, Peña V, Nash MC, Rossi S, Soares M, Pereira-Filho G, Tâmega F, Horta PA. Brazil oil spill response: Protect rhodolith beds. Science 2020; 367:156. [PMID: 31919215 DOI: 10.1126/science.aba2582] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- M Nasri Sissini
- Laboratório de Ficologia, Departamento de Botânica, Universidade Federal de Santa Catarina, 88040-970, Florianópolis, Santa Catarina, Brazil.,Programa de Pós-Graduação em Ecologia, Universidade Federal de Santa Catarina, 88040-970, Florianópolis, Santa Catarina, Brazil
| | - F Berchez
- CienTec Park and Instituto de Biociências, Universidade de São Paulo, 05422-970, São Paulo, Brazil
| | - J Hall-Spencer
- Marine Biology and Ecology Research Centre, University of Plymouth, Plymouth PL4 8AA, UK
| | - N Ghilardi-Lopes
- Center for Natural and Human Sciences, Federal University of do ABC, 09210-170, Santo André, São Paulo, Brazil
| | - V F Carvalho
- Laboratório de Ficologia, Departamento de Botânica, Universidade Federal de Santa Catarina, 88040-970, Florianópolis, Santa Catarina, Brazil.,Programa de Pós-Graduação em Ecologia, Universidade Federal de Santa Catarina, 88040-970, Florianópolis, Santa Catarina, Brazil
| | - N Schubert
- Laboratório de Ficologia, Departamento de Botânica, Universidade Federal de Santa Catarina, 88040-970, Florianópolis, Santa Catarina, Brazil.,Centre of Marine Sciences, University of Algarve, Campus Gambelas, 8005-139 Faro, Portugal
| | - G Koerich
- Laboratório de Ficologia, Departamento de Botânica, Universidade Federal de Santa Catarina, 88040-970, Florianópolis, Santa Catarina, Brazil.,Programa de Pós-Graduação em Ecologia, Universidade Federal de Santa Catarina, 88040-970, Florianópolis, Santa Catarina, Brazil
| | - G Diaz-Pulido
- School of Environment and Science, and Australian Rivers Institute-Coasts & Estuaries, Griffith University, QLD 4111, Australia
| | - J Silva
- Centre of Marine Sciences, University of Algarve, Campus Gambelas, 8005-139 Faro, Portugal
| | - E Serrão
- Centre of Marine Sciences, University of Algarve, Campus Gambelas, 8005-139 Faro, Portugal
| | - J Assis
- Centre of Marine Sciences, University of Algarve, Campus Gambelas, 8005-139 Faro, Portugal
| | - R Santos
- Centre of Marine Sciences, University of Algarve, Campus Gambelas, 8005-139 Faro, Portugal
| | - S R Floeter
- Laboratório de Ficologia, Departamento de Botânica, Universidade Federal de Santa Catarina, 88040-970, Florianópolis, Santa Catarina, Brazil.,Programa de Pós-Graduação em Ecologia, Universidade Federal de Santa Catarina, 88040-970, Florianópolis, Santa Catarina, Brazil
| | - L Rörig
- Laboratório de Ficologia, Departamento de Botânica, Universidade Federal de Santa Catarina, 88040-970, Florianópolis, Santa Catarina, Brazil
| | - J B Barufi
- Laboratório de Ficologia, Departamento de Botânica, Universidade Federal de Santa Catarina, 88040-970, Florianópolis, Santa Catarina, Brazil
| | - A F Bernardino
- Departamento de Oceanografia e Ecologia, Universidade Federal do Espírito Santo, 29075-910, Vitória, Espírito Santo, Brazil
| | - R Francini-Filho
- Centro de Ciências Aplicadas e Educação, Universidade Federal da Paraíba, 58297-000, Rio Tinto, Paraíba, Brazil
| | - A Turra
- Departamento de Oceanografia Biológica, Instituto Oceanográfico, Universidade de São Paulo, 05508-900, São Paulo, Brazil
| | - L C Hofmann
- Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, 27570 Bremerhaven, Germany
| | - J Aguirre
- Departamento Estratigrafıa y Paleontologia, Universidad de Granada, 18001 Granada, Spain
| | - L Le Gall
- Muséum National d'Histoire Naturelle-Institut de Systématique, Evolution, Biodiversité, 75231 Paris, Cedex 05, France
| | - V Peña
- BioCost Research Group, Universidade da Coruña, 15071, Coruña, Spain
| | - M C Nash
- Research School of Earth Sciences, Australian National University, Canberra, ACT, Australia
| | - S Rossi
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, DiSTeBA, University of Salento, Lecce, Italy.,Instituto de Ciências do Mar (Labomar), Universidade Federal do Ceará, 60165-081, Fortaleza, Ceará, Brazil
| | - M Soares
- Instituto de Ciências do Mar (Labomar), Universidade Federal do Ceará, 60165-081, Fortaleza, Ceará, Brazil
| | - G Pereira-Filho
- Departamento de Ciências do Mar, Universidade Federal de São Paulo, 11070-100, Santos, São Paulo, Brazil
| | - F Tâmega
- Programa de Pós-Graduação em Oceanografia, Instituto de Oceanografia, Universidade Federal do Rio Grande, 96203-900, Rio Grande, Rio Grande do Sul, Brazil
| | - P A Horta
- Laboratório de Ficologia, Departamento de Botânica, Universidade Federal de Santa Catarina, 88040-970, Florianópolis, Santa Catarina, Brazil. .,Programa de Pós-Graduação em Ecologia, Universidade Federal de Santa Catarina, 88040-970, Florianópolis, Santa Catarina, Brazil
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16
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Pandey S, Baxter E, Xu Z, Orlowski-Scherer J, Zhu N, Lidz A, Aguirre J, DeRose J, Devlin M, Hill J, Jain B, Sheth R, Avila S, Bertin E, Brooks D, Buckley-Geer E, Carnero Rosell A, Carrasco Kind M, Carretero J, Castander F, Cawthon R, da Costa L, De Vicente J, Desai S, Diehl H, Dietrich J, Doel P, Evrard A, Flaugher B, Fosalba P, Frieman J, García-Bellido J, Gerdes D, Giannantonio T, Gruendl R, Gschwend J, Hartley W, Hollowood D, James D, Krause E, Kuehn K, Kuropatkin N, Maia M, Marshall J, Melchior P, Menanteau F, Miquel R, Plazas A, Roodman A, Sanchez E, Serrano S, Sevilla-Noarbe I, Smith M, Soares-Santos M, Sobreira F, Suchyta E, Swanson M, Tarle G, Wechsler R. Constraints on the redshift evolution of astrophysical feedback with Sunyaev-Zel’dovich effect cross-correlations. Int J Clin Exp Med 2019. [DOI: 10.1103/physrevd.100.063519] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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17
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Hindelang B, Aguirre J, Schwarz M, Berezhnoi A, Eyerich K, Ntziachristos V, Biedermann T, Darsow U. Non-invasive imaging in dermatology and the unique potential of raster-scan optoacoustic mesoscopy. J Eur Acad Dermatol Venereol 2019; 33:1051-1061. [PMID: 30422337 PMCID: PMC6563473 DOI: 10.1111/jdv.15342] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 10/18/2018] [Indexed: 12/25/2022]
Abstract
In recent years, several non‐invasive imaging methods have been introduced to facilitate diagnostics and therapy monitoring in dermatology. The microscopic imaging methods are restricted in their penetration depth, while the mesoscopic methods probe deeper but provide only morphological, not functional, information. ‘Raster‐scan optoacoustic mesoscopy’ (RSOM), an emerging new imaging technique, combines deep penetration with contrast based on light absorption, which provides morphological, molecular and functional information. Here, we compare the capabilities and limitations of currently available dermatological imaging methods and highlight the principles and unique abilities of RSOM. We illustrate the clinical potential of RSOM, in particular for non‐invasive diagnosis and monitoring of inflammatory and oncological skin diseases.
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Affiliation(s)
- B Hindelang
- Department of Dermatology and Allergy, Technische Universität München, Munich, Germany.,Chair of Biological Imaging, Technische Universität München, Munich, Germany.,Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| | - J Aguirre
- Chair of Biological Imaging, Technische Universität München, Munich, Germany.,Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| | - M Schwarz
- Chair of Biological Imaging, Technische Universität München, Munich, Germany.,Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany.,iThera Medical GmbH, Munich, Germany
| | - A Berezhnoi
- Chair of Biological Imaging, Technische Universität München, Munich, Germany.,Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| | - K Eyerich
- Department of Dermatology and Allergy, Technische Universität München, Munich, Germany
| | - V Ntziachristos
- Chair of Biological Imaging, Technische Universität München, Munich, Germany.,Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| | - T Biedermann
- Department of Dermatology and Allergy, Technische Universität München, Munich, Germany
| | - U Darsow
- Department of Dermatology and Allergy, Technische Universität München, Munich, Germany
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18
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Affiliation(s)
- J A Páramo
- Service of Hematology, University Clinic of Navarra, Spain
| | - E Rocha
- Service of Hematology, University Clinic of Navarra, Spain
| | - B Cuesta
- Service of Hematology, University Clinic of Navarra, Spain
| | - J M Arejola
- Dept. of Internal Medicine, University Clinic of Navarra, Spain
| | | | | | - J Prieto
- Dept. of Internal Medicine, University Clinic of Navarra, Spain
| | - E Rocha Hernando
- Service of Hematology, University Clinic of Navarra, Avda. Pío XII s/n Apartado 192, 318080-Pamplona, Spain
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19
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Aguirre J, Hindelang B, Berezhnoi A, Darsow U, Lauffer F, Eyerich K, Biedermann T, Ntziachristos V. Assessing nailfold microvascular structure with ultra-wideband raster-scan optoacoustic mesoscopy. Photoacoustics 2018; 10:31-37. [PMID: 29988835 PMCID: PMC6032507 DOI: 10.1016/j.pacs.2018.02.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 02/08/2018] [Accepted: 02/14/2018] [Indexed: 05/05/2023]
Abstract
Nailfold capillaroscopy, based on bright-field microscopy, is widely used to diagnose systemic sclerosis (SSc). However it cannot reveal information about venules and arterioles lying deep under the nailfold, nor can it provide detailed data about surface microvasculature when the skin around the nail is thick. These limitations reflect the fact that capillaroscopy is based on microscopy methods whose penetration depth is restricted to about 200 μm. We investigated whether ultra-wideband raster-scan optoacoustic mesoscopy (UWB-RSOM) can resolve small capillaries of the nailfold in healthy volunteers and compared the optoacoustic data to conventional capillaroscopy examinations. We quantified UWB-RSOM-resolved capillary density and capillary diameter as features that relate to SSc biomarkers, and we obtained the first three-dimensional, in vivo images of the deeper arterioles and venules. These results establish the potential of UWB-RSOM for analyzing SSc-relevant markers.
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Affiliation(s)
- J. Aguirre
- Chair of Biological Imaging, Technische Universität München and Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| | - B. Hindelang
- Department of Dermatology and Allergy, Technische Universität München, Munich, Germany
| | - Andrei Berezhnoi
- Chair of Biological Imaging, Technische Universität München and Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| | - U. Darsow
- Department of Dermatology and Allergy, Technische Universität München, Munich, Germany
| | - F. Lauffer
- Department of Dermatology and Allergy, Technische Universität München, Munich, Germany
| | - K. Eyerich
- Department of Dermatology and Allergy, Technische Universität München, Munich, Germany
| | - T. Biedermann
- Department of Dermatology and Allergy, Technische Universität München, Munich, Germany
| | - V. Ntziachristos
- Chair of Biological Imaging, Technische Universität München and Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
- Corresponding author.
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20
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Ceruti S, Anselmi L, Minotti B, Franceschini D, Aguirre J, Borgeat A, Saporito A. Prevention of arterial hypotension after spinal anaesthesia using vena cava ultrasound to guide fluid management. Br J Anaesth 2018; 120:101-108. [DOI: 10.1016/j.bja.2017.08.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 08/18/2017] [Accepted: 08/25/2017] [Indexed: 10/18/2022] Open
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21
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Ramírez-Moreno JM, Muñoz Vega P, Espada S, Bartolomé Alberca S, Aguirre J, Peral D. Association between self-perceived psychological stress and transitory ischaemic attack and minor stroke: A case-control study. Neurologia 2017; 35:556-562. [PMID: 29277523 DOI: 10.1016/j.nrl.2017.09.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [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: 06/21/2017] [Revised: 09/16/2017] [Accepted: 09/22/2017] [Indexed: 11/20/2022] Open
Abstract
INTRODUCTION Stroke has a complex aetiopathogenesis influenced by numerous risk factors. There is growing interest in the study of the pathophysiological changes associated with stress and their potential relationship with cerebrovascular disease. The purpose of this paper is to assess the strength of association between exposure to stress and stroke. METHODS We conducted a case-control study (1:1) to compare exposure to stress in a group of patients with a history of a first transient ischaemic attack (TIA) or minor stroke and in a control group. Participants were asked a subjective question about their perception of stress in the previous months and completed the standardised Effort-Reward Imbalance (ERI) questionnaire. Logistic regression models were used for data analysis. RESULTS The study included data on 50 cases and 50 controls. There were no significant differences in demographic variables and economic, social, and employment status between cases and controls. Fifty percent of the cases reported moderate to severe stress, compared to 30% of controls (OR: 2.33; 95% CI: 1.02-5.30; P=.041). ERI questionnaire results found that greater effort at work (OR: 1.48; 95% CI: 1.19-1.83) and greater commitment is associated with stroke (OR: 1.34; 95% CI: 1.17-1.54), while higher reward constitutes a protective factor against the disease (OR: 0.71; 95% CI: 0.61-0.82). CONCLUSIONS There is a strong association between self-perceived psychological stress and TIA. The imbalance between effort and reward at work is also clearly related to TIA.
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Affiliation(s)
- J M Ramírez-Moreno
- Departamento de Ciencias Biomédicas, Universidad de Extremadura, Badajoz, España; Centro de ictus, Sección de Neurología, Hospital Universitario Infanta Cristina, Badajoz, España; Grupo de Investigación Multidisciplinar de Extremadura GRIMEX.
| | - P Muñoz Vega
- Centro de ictus, Sección de Neurología, Hospital Universitario Infanta Cristina, Badajoz, España
| | - S Espada
- Departamento de Ciencias Biomédicas, Universidad de Extremadura, Badajoz, España
| | - S Bartolomé Alberca
- Centro de ictus, Sección de Neurología, Hospital Universitario Infanta Cristina, Badajoz, España
| | - J Aguirre
- Departamento de Ciencias Biomédicas, Universidad de Extremadura, Badajoz, España; Centro de ictus, Sección de Neurología, Hospital Universitario Infanta Cristina, Badajoz, España
| | - D Peral
- Departamento de Terapéutica Médico-quirúrgica, Universidad de Extremadura, Badajoz, España
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22
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Aguirre J, Meza E, Caba M. Dopaminergic activation anticipates daily nursing in the rabbit. Eur J Neurosci 2017; 45:1396-1409. [DOI: 10.1111/ejn.13571] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 03/03/2017] [Accepted: 03/06/2017] [Indexed: 02/07/2023]
Affiliation(s)
- J. Aguirre
- Doctorado en Ciencias Biomédicas; CIB; Universidad Veracruzana; Xalapa Veracruz México
| | - E. Meza
- Centro de Investigaciones Biomédicas; Universidad Veracruzana; Av. Luis Castelazo s/n, Col. Industrial Animas C.P. 91190 Xalapa Veracruz México
| | - M. Caba
- Centro de Investigaciones Biomédicas; Universidad Veracruzana; Av. Luis Castelazo s/n, Col. Industrial Animas C.P. 91190 Xalapa Veracruz México
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Aguirre J, Schwarz M, Garzorz-Stark N, Lauffer F, Soliman D, Buehler A, Eyerich K, Ntziachristos V. 328 Assessment of psoriasis using label-free ultra-broadband optoacoustic mesoscopy. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.06.348] [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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24
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Schiappacasse G, Aguirre J, Soffia P, Silva CS, Zilleruelo N. CT findings of the main pathological conditions associated with horseshoe kidneys. Br J Radiol 2015; 88:20140456. [PMID: 25375751 DOI: 10.1259/bjr.20140456] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Horseshoe kidney (HSK) is the most common renal fusion anomaly, with a prevalence of 0.25% among the general population. It consists of kidney fusion across the midline. HSK can be present as an isolated condition in 30%, but there is a wide variety of associated abnormalities. The most frequent include ureteropelvic obstruction, lithiasis and infections. There is also a higher risk of kidney lesions in trauma and an increased incidence of malignancies. Awareness of embryology and anatomy is essential to assess and understand the complications affecting HSK. CT is an excellent method for identification of its main findings.
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Affiliation(s)
- G Schiappacasse
- 1 Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago, Chile
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25
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Saporito A, Sturini E, Borgeat A, Aguirre J. A reply. Anaesthesia 2015; 70:232. [PMID: 25583194 DOI: 10.1111/anae.13002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- A Saporito
- Bellinzona Regional Hospital, Bellinzona, Switzerland
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26
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Sanchez-Calzada A, Navarro JL, Delgado L, Torres O, Torres A, Gastelum R, Romano P, Monares E, Galindo C, Camarena G, Aguirre J, Franco J. MEAN PLATELET VOLUME AS A MARKER OF SEPSIS IN PATIENTS ADMITTED TO INTENSIVE THERAPY. Intensive Care Med Exp 2015. [PMCID: PMC4797862 DOI: 10.1186/2197-425x-3-s1-a871] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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27
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Aguirre J, Sevilla-Escoboza R, Gutiérrez R, Papo D, Buldú JM. Synchronization of interconnected networks: the role of connector nodes. Phys Rev Lett 2014; 112:248701. [PMID: 24996113 DOI: 10.1103/physrevlett.112.248701] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Indexed: 05/07/2023]
Abstract
In this Letter we identify the general rules that determine the synchronization properties of interconnected networks. We study analytically, numerically, and experimentally how the degree of the nodes through which two networks are connected influences the ability of the whole system to synchronize. We show that connecting the high-degree (low-degree) nodes of each network turns out to be the most (least) effective strategy to achieve synchronization. We find the functional relation between synchronizability and size for a given network of networks, and report the existence of the optimal connector link weights for the different interconnection strategies. Finally, we perform an electronic experiment with two coupled star networks and conclude that the analytical results are indeed valid in the presence of noise and parameter mismatches.
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Affiliation(s)
- J Aguirre
- Centro de Astrobiología, CSIC-INTA. Carretera de Ajalvir km 4, 28850 Torrejón de Ardoz, Madrid, Spain and Grupo Interdisciplinar de Sistemas Complejos (GISC)
| | - R Sevilla-Escoboza
- Centro Universitario de los Lagos, Universidad de Guadalajara, Enrique Díaz de Leon, Paseos de la Montaña, Lagos de Moreno, Jalisco 47460, Mexico and Laboratory of Biological Networks, Center for Biomedical Technology, UPM, Pozuelo de Alarcón, 28223 Madrid, Spain
| | - R Gutiérrez
- Department of Chemical Physics, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - D Papo
- Group of Computational Systems Biology, Center for Biomedical Technology, UPM, Pozuelo de Alarcón, 28223 Madrid, Spain
| | - J M Buldú
- Laboratory of Biological Networks, Center for Biomedical Technology, UPM, Pozuelo de Alarcón, 28223 Madrid, Spain and Complex Systems Group, Universidad Rey Juan Carlos, 28933 Móstoles, Madrid, Spain
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28
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Saporito A, Sturini E, Borgeat A, Aguirre J. The effect of continuous popliteal sciatic nerve block on unplanned postoperative visits and readmissions after foot surgery - a randomised, controlled study comparing day-care and inpatient management. Anaesthesia 2014; 69:1197-205. [DOI: 10.1111/anae.12710] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/25/2014] [Indexed: 11/27/2022]
Affiliation(s)
- A. Saporito
- Anaesthesiology Service; Regional and Ambulatory Anesthesia Unit; Bellinzona Regional Hospital; Bellinzona Switzerland
| | - E. Sturini
- Anaesthesiology Service; St. Chiara Clinic; Locarno Switzerland
| | - A. Borgeat
- Division of Anaesthesiology; Balgrist University Hospital; Zurich Switzerland
| | - J. Aguirre
- Division of Anaesthesiology; Balgrist University Hospital; Zurich Switzerland
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Borgeat A, Aguirre J, Votta-Velis EG. In reply. Acta Anaesthesiol Scand 2014; 58:372. [PMID: 24433222 DOI: 10.1111/aas.12260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Porres-Aguilar M, Gallegos-Orozco JF, Garcia H, Aguirre J, Macias-Rodriguez RU, Torre-Delgadillo A. Pulmonary vascular complications in portal hypertension and liver disease: a concise review. Rev Gastroenterol Mex 2013; 78:35-44. [PMID: 23369639 DOI: 10.1016/j.rgmx.2012.10.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2012] [Accepted: 10/19/2012] [Indexed: 11/30/2022]
Abstract
Chronic liver disease and/or portal hypertension may be associated with one of the two pulmonary vascular complications: portopulmonary hypertension and hepatopulmonary syndrome. These pulmonary vascular disorders are notoriously underdiagnosed; however, they have a substantial negative impact on survival and require special attention in order to understand their diagnostic approach and to select the best therapeutic options. Portopulmonary hypertension results from excessive vasoconstriction, vascular remodeling, and proliferative and thrombotic events within the pulmonary circulation that lead to progressive right ventricular failure and ultimately to death. On the other hand, abnormal intrapulmonary vascular dilations, profound hypoxemia, and a wide alveolar-arterial gradient are the hallmarks of the hepatopulmonary syndrome, resulting in difficult-to-treat hypoxemia. The aim of this review is to summarize the latest pathophysiologic concepts, diagnostic approach, therapy, and prognosis of portopulmonary hypertension and hepatopulmonary syndrome, as well as to discuss the role of liver transplantation as a definitive therapy in selected patients with these conditions.
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Affiliation(s)
- M Porres-Aguilar
- Department of Internal Medicine, Division of Hospital Medicine, Texas Tech University Health Sciences Center/Paul L. Foster School of Medicine, El Paso, TX, USA.
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Borgeat A, Ekatodramis G, Guzzella S, Ruland P, Votta-Velis G, Aguirre J. Deltoid, triceps, or both responses improve the success rate of the interscalene catheter surgical block compared with the biceps response. Br J Anaesth 2012; 109:975-80. [DOI: 10.1093/bja/aes296] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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32
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Lowenstein J, Kry S, Molineu A, Alvarez P, Aguirre J, Summers P, Followill D. SU-E-T-223: High-Energy Photon Standard Dosimetry Data: A Quality Assurance Tool. Med Phys 2012; 39:3754. [DOI: 10.1118/1.4735286] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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33
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Followill D, Lowenstein J, Molineu A, Alvarez P, Aguirre J, Kry S, Summers P, Ibbott G. MO-D-BRB-02: The Radiological Physics Center's Quality Audit Program: Where Can We Improve? Med Phys 2012; 39:3866. [PMID: 28518233 DOI: 10.1118/1.4735783] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 11/07/2022] Open
Abstract
PURPOSE To analyze the findings of the Radiological Physics Center's (RPC) QA audits of institutions participating in NCI sponsored clinical trials. METHODS The RPC has developed an extensive Quality Assurance (QA) program over the past 44 years. This program includes on-site dosimetry reviews where measurements on therapy machines are made, records are reviewed and personnel are interviewed. The program's remote audit tools include mailed dosimeters (OSLD/TLD) to verify output calibration, comparison of dosimetry data with RPC 'standard' data, evaluation of benchmark and patient calculations to verify the treatment planning algorithms, review of institution's QA procedures and records, and use of anthropomorphic phantoms to verify tumor dose delivery. The RPC endeavors to assist institutions in finding the origins of any detected discrepancies, and to resolve them. RESULTS Ninety percent of institutions receiving dosimetry recommendations has remained level for the past 5 years. The most frequent recommendations were for not performing TG-40 QA tests, wedge factors, small field size output factors and off-axis factors. Since TG-51 was published, the number of beam calibrations audited during visits with ion chambers, that met the RPC's ±3% criterion, decreased initially but has risen to pre-TG-51 levels. The OSLD/TLD program shows that only ∼3% of the beams are outside our ±5% criteria, but these discrepancies are distributed over 12-20% of the institutions. The percent of institutions with ï,3 l beam outside the RPC's criteria is approximately the same whether OSLD/TLD or ion chambers were used. The first time passing rate for the anthropomorphic phantoms is increasing with time. The prostate phantom has the highest pass rate while the spine phantom has the lowest. CONCLUSIONS Numerous dosimetry errors continue to be discovered by the RPC's QA program and the RPC continues to play an important role in helping institutions resolve these errors. This work was supported by PHS grants CA10953 and CA081647 awarded by NCI.
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Affiliation(s)
| | | | - A Molineu
- UT MD Anderson Cancer Center, Houston, TX
| | - P Alvarez
- UT MD Anderson Cancer Center, Houston, TX
| | - J Aguirre
- UT MD Anderson Cancer Center, Houston, TX
| | - S Kry
- UT MD Anderson Cancer Center, Houston, TX
| | - P Summers
- UT MD Anderson Cancer Center, Houston, TX
| | - G Ibbott
- UT MD Anderson Cancer Center, Houston, TX
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Alvarez P, Aguirre J, Smith S, Followill D. SU-E-T-102: Evaluation of the Characteristics of TLD LiF:Mg.Ti-100 Powder: A Measure of Consistency between Multiple Batches of Powder. Med Phys 2012; 39:3726. [PMID: 28517137 DOI: 10.1118/1.4735160] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
PURPOSE Analyze the characteristics of TLD LiF-100 powder between multiple LiF crystal batches. METHODS The RPC used TLD LiF-100 encapsulated powder to verify the output for photon and electron beams for 4 to 23 MV X-ray beams and 6 to 23 MeV electron beams, respectively, from the past 15 years. During that time period, the RPC commissioned more than 15 batches of TLD powder. Commissioning of each batch of powder encompassed determining the system sensitivity (dose response), linearity, energy and fading characteristics of each batch of powder to determine the correction factors for the calculation of dose. The system sensitivity is the signal/mg per unit known dose of 60Co for each reading session. Other correction factors account for the loss of signal (fading) between the irradiation and read dates, supralinearity of the dose response and energy differences as compared to the 60Co irradiated standards. RESULTS More than 15 batches of TLD were commissioned to determine correction factors for the calculation of dose. The correction for fading, a characteristic of the LiF crystal, varied by ±1% between the multiple batches. The linearity correction, between 25 and 600cGy, normalized to 300cGy, showed a maximum variation of ±3% between batches. The energy correction factors, as defined for the RPC beam output audit system varied within ±1.7% (one std dev.) for the 15 batches. The system sensitivity is highly dependent on the LiF crystal grown for each batch, specific TLD reader and reading session conditions. The system sensitivity, while keeping the readers and reading sessions constant, varied by as much as 20% between batches. CONCLUSIONS Each batch of LiF-100 TLD powder showed variability in their powder characteristics such that calculation of dose accurately, with minimal uncertainty, requires a new commissioning. Work supported by PHS CA010953 awarded by NCI, DHHS.
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Affiliation(s)
- P Alvarez
- UT MD Anderson Cancer Center, Houston, TX
| | - J Aguirre
- UT MD Anderson Cancer Center, Houston, TX
| | - S Smith
- UT MD Anderson Cancer Center, Houston, TX
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Velazquez-Robledo R, Contreras-Cornejo HA, Macias-Rodriguez L, Hernandez-Morales A, Aguirre J, Casas-Flores S, Lopez-Bucio J, Herrera-Estrella A. Role of the 4-phosphopantetheinyl transferase of Trichoderma virens in secondary metabolism and induction of plant defense responses. Mol Plant Microbe Interact 2011; 24:1459-1471. [PMID: 21830953 DOI: 10.1094/mpmi-02-11-0045] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Trichoderma virens is a ubiquitous soil fungus successfully used in biological control due to its efficient colonization of plant roots. In fungi, 4-phosphopantetheinyl transferases (PPTases) activate enzymes involved in primary and secondary metabolism. Therefore, we cloned the PPTase gene ppt1 from T. virens and generated PPTase-deficient (?ppt1) and overexpressing strains to investigate the role of this enzyme in biocontrol and induction of plant defense responses. The ?ppt1 mutants were auxotrophic for lysine, produced nonpigmented conidia, and were unable to synthesize nonribosomal peptides. Although spore germination was severely compromised under both low and high iron availability, mycelial growth occurred faster than the wild type, and the mutants were able to efficiently colonize plant roots. The ?ppt1 mutants were unable of inhibiting growth of phytopathogenic fungi in vitro. Arabidopsis thaliana seedlings co-cultivated with wild-type T. virens showed increased expression of pPr1a:uidA and pLox2:uidA markers, which correlated with enhanced accumulation of salicylic acid (SA), jasmonic acid, camalexin, and resistance to Botrytis cinerea. Co-cultivation of A. thaliana seedlings with ?ppt1 mutants compromised the SA and camalexin responses, resulting in decreased protection against the pathogen. Our data reveal an important role of T. virens PPT1 in antibiosis and induction of SA and camalexin-dependent plant defense responses.
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Ortega U, Renedo P, Figueroa G, Aguirre J. [Sugammadex used in a patient with hereditary spastic paraplegia]. Rev Esp Anestesiol Reanim 2011; 58:619-620. [PMID: 22263409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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Abascal JFPJ, Chamorro-Servent J, Aguirre J, Arridge S, Correia T, Ripoll J, Vaquero JJ, Desco M. Fluorescence diffuse optical tomography using the split Bregman method. Med Phys 2011; 38:6275-84. [DOI: 10.1118/1.3656063] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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38
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Medina-Polo J, de la Rosa F, Pamplona M, Rodríguez A, Villacampa F, Passas J, Duarte J, Gutiérrez E, Aguirre J, Díaz R. MP-06.13 A Comparison of the Outcomes of Renal Transplantation from Heart-Beating Cadaveric Donors and Non-Heart-Beating Who Present Irreversible Cardiac Arrest Occurring Outside the Hospital. Urology 2011. [DOI: 10.1016/j.urology.2011.07.137] [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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39
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Aguirre J, Alvarez P, Ibbott G, Followill D. SU-E-T-126: Analysis of Uncertainties for the RPC Remote Dosimetry Using Optically Stimulated Light Dosimetry (OSDL). Med Phys 2011. [DOI: 10.1118/1.3612077] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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40
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Alvarez P, Aguirre J, Followill D. SU-E-T-86: Evaluation of the OSLD System for Remote Dosimetry Audits Implemented by the RPC. Med Phys 2011. [DOI: 10.1118/1.3612037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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41
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Blumenthal S, Borgeat A, Neudörfer C, Bertolini R, Espinosa N, Aguirre J. Additional femoral catheter in combination with popliteal catheter for analgesia after major ankle surgery. Br J Anaesth 2011; 106:387-93. [DOI: 10.1093/bja/aeq365] [Citation(s) in RCA: 36] [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: 12/18/2022] Open
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42
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Fedder C, Beck-Schimmer B, Aguirre J, Hasler M, Roth-Z'graggen B, Urner M, Kalberer S, Schlicker A, Votta-Velis G, Bonvini JM, Graetz K, Borgeat A. In vitro exposure of human fibroblasts to local anaesthetics impairs cell growth. Clin Exp Immunol 2010; 162:280-8. [PMID: 20819090 PMCID: PMC2996595 DOI: 10.1111/j.1365-2249.2010.04252.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [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] [Accepted: 07/27/2010] [Indexed: 12/27/2022] Open
Abstract
Lidocaine, bupivacaine or ropivacaine are used routinely to manage perioperative pain. Sparse data exist evaluating the effects of local anaesthetics (LA) on fibroblasts, which are involved actively in wound healing. Therefore, we investigated the effects of the three LA to assess the survival, viability and proliferation rate of fibroblasts. Human fibroblasts were exposed to 0·3 mg/ml and 0·6 mg/ml of each LA for 2 days, followed by incubation with normal medium for another 1, 4 or 7 days (group 1). Alternatively, cells were incubated permanently with LA for 3, 6 or 9 days (group 2). Live cell count was assessed using trypan blue staining. Viability was measured by the tetrazolium bromide assay. Proliferation tests were performed with the help of the colorimetric bromodeoxyuridine assay. Production of reactive oxygen species (ROS) was determined, measuring the oxidation of non-fluorescent-2,7'-dichlorofluorescin. Treatment of cells with the three LA showed a concentration-dependent decrease of live cells, mitochondrial activity and proliferation rate. Group arrangement played a significant role for cell count and proliferation, while exposure time influenced viability. Among the analysed LA, bupivacaine showed the most severe cytotoxic effects. Increased production of ROS correlated with decreased viability of fibroblasts in lidocaine- and bupivacaine-exposed cells, but not upon stimulation with ropivacaine. This study shows a concentration-dependent cytotoxic effect of lidocaine, bupivacaine and ropivacaine on fibroblasts in vitro, with more pronounced effects after continuous incubation. A possible mechanism of cell impairment could be triggered by production of ROS upon stimulation with lidocaine and bupivacaine.
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Affiliation(s)
- C Fedder
- Department of Cranio-Maxillofacial Surgery, University Hospital of Zurich Institute of Physiology, Zurich Center for Integrative Human Physiology, University of Zurich, Switzerland
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Aguirre J, Alvarez P, Amador C, Tailor A, Followill D, Ibbott G. WE-D-BRB-08: Validation of the Commissioning of an Optically Stimulated Luminescence (OSL) System for Remote Dosimetry Audits. Med Phys 2010. [DOI: 10.1118/1.3469396] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Risch M, Aguirre J, Perniola L, Borgeat A, Ehrenberg R. Neurologische Komplikation nach einer vertikalen infraklavikulären Plexusblockade. Anaesthesist 2010; 59:86; author reply 87-8. [DOI: 10.1007/s00101-009-1652-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Medina Polo J, Morales J, Aguirre J, Díaz R, Pamplona M, Passas J, Rodríguez A, de la Rosa F, Manrique A, Leiva Ó. MP-03.06: Urological Complications after Simultaneous Pancreas-Kidney Transplantation. Urology 2009. [DOI: 10.1016/j.urology.2009.07.1046] [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: 11/16/2022]
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Aguirre J, Alvarez P, Followill D, Ibbott G, Amador C, Tailor A. SU-FF-T-306: Optically Stimulated Light Dosimetry: Commissioning of An Optically Stimulated Luminescence (OSL) System for Remote Dosimetry Audits, the Radiological Physics Center Experience. Med Phys 2009. [DOI: 10.1118/1.3181785] [Citation(s) in RCA: 11] [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: 11/07/2022] Open
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Aguirre J, Ruland P, Ekatodramis G, Borgeat A. Ultrasound versus neurostimulation for popliteal block: another vain effort to show a non existing clinical relevant difference. Anaesth Intensive Care 2009; 37:665-667. [PMID: 19681430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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Goitia L, Arzuaga M, Aguirre J, Arizaga A. [Indirectly caused intraoperative vertebrobasilar ischemia]. Rev Esp Anestesiol Reanim 2008; 55:578-579. [PMID: 19086727 DOI: 10.1016/s0034-9356(08)70656-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
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49
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Giménez A, Riveiro R, Trujillo-Tiebas MJ, Aguirre J, Avila A, García-Hoyos M, Ayuso C. Gene symbol: RPGR. Disease: Retinitis Pigmentosa. Hum Genet 2008; 124:303. [PMID: 18846630] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
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Fedder C, Beck-Schimmer B, Aguirre J, Hasler M, Grätz K, Borgeat A. 582. In Vitro Exposure of Human Fibroblasts to Ropivacaine Is Cytotoxic. Reg Anesth Pain Med 2008. [DOI: 10.1136/rapm-00115550-200809001-00011] [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: 11/03/2022]
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