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Hülsmann L, Chisholm RA, Comita L, Visser MD, de Souza Leite M, Aguilar S, Anderson-Teixeira KJ, Bourg NA, Brockelman WY, Bunyavejchewin S, Castaño N, Chang-Yang CH, Chuyong GB, Clay K, Davies SJ, Duque A, Ediriweera S, Ewango C, Gilbert GS, Holík J, Howe RW, Hubbell SP, Itoh A, Johnson DJ, Kenfack D, Král K, Larson AJ, Lutz JA, Makana JR, Malhi Y, McMahon SM, McShea WJ, Mohamad M, Nasardin M, Nathalang A, Norden N, Oliveira AA, Parmigiani R, Perez R, Phillips RP, Pongpattananurak N, Sun IF, Swanson ME, Tan S, Thomas D, Thompson J, Uriarte M, Wolf AT, Yao TL, Zimmerman JK, Zuleta D, Hartig F. Latitudinal patterns in stabilizing density dependence of forest communities. Nature 2024; 627:564-571. [PMID: 38418889 PMCID: PMC10954553 DOI: 10.1038/s41586-024-07118-4] [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: 11/05/2022] [Accepted: 01/25/2024] [Indexed: 03/02/2024]
Abstract
Numerous studies have shown reduced performance in plants that are surrounded by neighbours of the same species1,2, a phenomenon known as conspecific negative density dependence (CNDD)3. A long-held ecological hypothesis posits that CNDD is more pronounced in tropical than in temperate forests4,5, which increases community stabilization, species coexistence and the diversity of local tree species6,7. Previous analyses supporting such a latitudinal gradient in CNDD8,9 have suffered from methodological limitations related to the use of static data10-12. Here we present a comprehensive assessment of latitudinal CNDD patterns using dynamic mortality data to estimate species-site-specific CNDD across 23 sites. Averaged across species, we found that stabilizing CNDD was present at all except one site, but that average stabilizing CNDD was not stronger toward the tropics. However, in tropical tree communities, rare and intermediate abundant species experienced stronger stabilizing CNDD than did common species. This pattern was absent in temperate forests, which suggests that CNDD influences species abundances more strongly in tropical forests than it does in temperate ones13. We also found that interspecific variation in CNDD, which might attenuate its stabilizing effect on species diversity14,15, was high but not significantly different across latitudes. Although the consequences of these patterns for latitudinal diversity gradients are difficult to evaluate, we speculate that a more effective regulation of population abundances could translate into greater stabilization of tropical tree communities and thus contribute to the high local diversity of tropical forests.
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Affiliation(s)
- Lisa Hülsmann
- Ecosystem Analysis and Simulation (EASI) Lab, University of Bayreuth, Bayreuth, Germany.
- Theoretical Ecology, University of Regensburg, Regensburg, Germany.
- Bayreuth Center of Ecology and Environmental Research (BayCEER), University of Bayreuth, Bayreuth, Germany.
| | - Ryan A Chisholm
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Liza Comita
- School of the Environment, Yale University, New Haven, CT, USA
- Smithsonian Tropical Research Institute, Panama City, Panama
| | - Marco D Visser
- Institute of Environmental Sciences, Leiden University, Leiden, The Netherlands
| | | | - Salomon Aguilar
- Forest Global Earth Observatory, Smithsonian Tropical Research Institute, Panama City, Panama
| | - Kristina J Anderson-Teixeira
- Forest Global Earth Observatory, Smithsonian Tropical Research Institute, Panama City, Panama
- Conservation Ecology Center, Smithsonian's National Zoo & Conservation Biology Institute, Front Royal, VA, USA
| | - Norman A Bourg
- Conservation Ecology Center, Smithsonian's National Zoo & Conservation Biology Institute, Front Royal, VA, USA
| | - Warren Y Brockelman
- National Biobank of Thailand (NBT), National Science and Technology Development Agency, Bangkok, Thailand
- Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Sarayudh Bunyavejchewin
- Thai Long Term Forest Ecological Research Project, Department of Forest Biology, Faculty of Forestry, Kasetsart University, Bangkok, Thailand
| | - Nicolas Castaño
- Instituto Amazónico de Investigaciones Científicas Sinchi, Bogotá, Colombia
| | - Chia-Hao Chang-Yang
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | | | - Keith Clay
- Department of Ecology and Evolutionary Biology, Tulane University, New Orleans, LA, USA
| | - Stuart J Davies
- Forest Global Earth Observatory, Smithsonian Tropical Research Institute, Washington, DC, USA
| | - Alvaro Duque
- Departamento de Ciencias Forestales, Universidad Nacional de Colombia Sede Medellín, Medellín, Colombia
| | - Sisira Ediriweera
- Department of Science and Technology, Uva Wellassa University, Badulla, Sri Lanka
| | | | - Gregory S Gilbert
- Environmental Studies Department, University of California, Santa Cruz, Santa Cruz, CA, USA
| | - Jan Holík
- Department of Forest Ecology, Silva Tarouca Research Institute, Brno, Czech Republic
| | - Robert W Howe
- Cofrin Center for Biodiversity, Department of Biology, University of Wisconsin-Green Bay, Green Bay, WI, USA
| | - Stephen P Hubbell
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Akira Itoh
- Graduate School of Science, Osaka Metropolitan University, Osaka, Japan
| | - Daniel J Johnson
- School of Forest, Fisheries, and Geomatics Sciences, University of Florida, Gainesville, FL, USA
| | - David Kenfack
- Global Earth Observatory (ForestGEO), Smithsonian Tropical Research Institute, Washington, DC, USA
| | - Kamil Král
- Department of Forest Ecology, Silva Tarouca Research Institute, Brno, Czech Republic
| | - Andrew J Larson
- Department of Forest Management, University of Montana, Missoula, MT, USA
- Wilderness Institute, University of Montana, Missoula, MT, USA
| | - James A Lutz
- Department of Wildland Resources, Utah State University, Logan, UT, USA
| | | | - Yadvinder Malhi
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
| | - Sean M McMahon
- Forest Global Earth Observatory, Smithsonian Tropical Research Institute, Washington, DC, USA
- Smithsonian Environmental Research Center, Edgewater, MD, USA
| | - William J McShea
- Conservation Ecology Center, Smithsonian's National Zoo & Conservation Biology Institute, Front Royal, VA, USA
| | | | | | - Anuttara Nathalang
- National Biobank of Thailand (NBT), National Science and Technology Development Agency, Bangkok, Thailand
| | - Natalia Norden
- Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, Bogotá, Colombia
| | | | - Renan Parmigiani
- Department of Ecology, University of São Paulo, São Paulo, Brazil
| | - Rolando Perez
- Forest Global Earth Observatory, Smithsonian Tropical Research Institute, Panama City, Panama
| | | | | | - I-Fang Sun
- Department of Natural Resources and Environmental Studies, National Donghwa University, Hualien, Taiwan
| | - Mark E Swanson
- School of the Environment, Washington State University, Pullman, WA, USA
| | | | - Duncan Thomas
- Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR, USA
| | - Jill Thompson
- UK Centre for Ecology & Hydrology, Bush Estate, Penicuik, UK
| | - Maria Uriarte
- Department of Ecology, Evolution & Environmental Biology, Columbia University, New York, NY, USA
| | - Amy T Wolf
- Department of Biology, University of Wisconsin-Green Bay, Green Bay, WI, USA
| | - Tze Leong Yao
- Forest Research Institute Malaysia, Kepong, Malaysia
| | - Jess K Zimmerman
- Department of Environmental Science, University of Puerto Rico, Rio Piedras, USA
| | - Daniel Zuleta
- Forest Global Earth Observatory, Smithsonian Tropical Research Institute, Washington, DC, USA
| | - Florian Hartig
- Theoretical Ecology, University of Regensburg, Regensburg, Germany
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Gonzalez A, Leon DA, Perera Y, Perez R. On the gene expression landscape of cancer. PLoS One 2023; 18:e0277786. [PMID: 36802377 PMCID: PMC9942972 DOI: 10.1371/journal.pone.0277786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 11/03/2022] [Indexed: 02/23/2023] Open
Abstract
Kauffman picture of normal and tumor states as attractors in an abstract state space is used in order to interpret gene expression data for 15 cancer localizations obtained from The Cancer Genome Atlas. A principal component analysis of this data unveils the following qualitative aspects about tumors: 1) The state of a tissue in gene expression space can be described by a few variables. In particular, there is a single variable describing the progression from a normal tissue to a tumor. 2) Each cancer localization is characterized by a gene expression profile, in which genes have specific weights in the definition of the cancer state. There are no less than 2500 differentially-expressed genes, which lead to power-like tails in the expression distribution functions. 3) Tumors in different localizations share hundreds or even thousands of differentially expressed genes. There are 6 genes common to the 15 studied tumor localizations. 4) The tumor region is a kind of attractor. Tumors in advanced stages converge to this region independently of patient age or genetic characteristics. 5) There is a landscape of cancer in gene expression space with an approximate border separating normal tissues from tumors.
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Affiliation(s)
- Augusto Gonzalez
- University of Electronic Sciences and Technology of China, Chengdu, People Republic of China
- Institute of Cybernetics, Mathematics and Physics, Havana, Cuba
| | - Dario A. Leon
- Institute of Cybernetics, Mathematics and Physics, Havana, Cuba
- Department of Mechanical Engineering and Technology Management, Norwegian University of Life Sciences, Ås, Norway
- * E-mail:
| | - Yasser Perera
- China-Cuba Biotechnology Joint Innovation Center, Yongzhou, People Republic of China
- Center of Genetic Engineering and Biotechnology, Havana, Cuba
| | - Rolando Perez
- University of Electronic Sciences and Technology of China, Chengdu, People Republic of China
- Center of Molecular Immunology, Havana, Cuba
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Vieyra O, Santiago R, Delgado A, Martinez A, Perez R, Osornio V, Garza G, Lopez R, Trujillo L. Laparoscopic resection of colovesical fistula secondary to diverticular disease in sigmoid colon. Technical aspects of one-stage surgery. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)01422-7] [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: 02/12/2023]
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Eikelboom R, Whitlock R, Nguyen F, Perez R, Weitz J, Belley-Cote E. DIRECT ORAL ANTICOAGULATION VERSUS WARFARIN IN PATIENTS WITH ATRIAL FIBRILLATION AND BIOPROSTHETIC HEART VALVES: A RETROSPECTIVE, REAL WORLD COHORT STUDY. Can J Cardiol 2022. [DOI: 10.1016/j.cjca.2022.08.183] [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: 11/02/2022] Open
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de Lange O, Youngflesh C, Ibarra A, Perez R, Kaplan M. Broadening Participation: 21st Century Opportunities for Amateurs in Biology Research. Integr Comp Biol 2021; 61:2294-2305. [PMID: 34427632 DOI: 10.1093/icb/icab180] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 08/03/2021] [Indexed: 01/30/2023] Open
Abstract
The modern field of biology has its roots in the curiosity and skill of amateur researchers and has never been purely the domain of professionals. Today, professionals and amateurs contribute to biology research, working both together and independently. Well-targeted and holistic investment in amateur biology research could bring a range of benefits that, in addition to positive societal benefits, may help to address the considerable challenges facing our planet in the 21st century. We highlight how recent advances in amateur biology have been facilitated by innovations in digital infrastructure as well as the development of community biology laboratories, launched over the last decade, and we provide recommendations for how individuals can support the integration of amateurs into biology research. The benefits of investment in amateur biology research could be many-fold, however without a clear consideration of equity, efforts to promote amateur biology could exacerbate structural inequalities around access to and benefits from STEM. The future of the field of biology relies on integrating a diversity of perspectives and approaches-amateur biology researchers have an important role to play.
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Affiliation(s)
| | - Casey Youngflesh
- University of California Los Angeles, Department of Ecology and Evolutionary Biology
| | - Ana Ibarra
- Stanford University, Department of Bioengineering
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6
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Terra C, Perez R. Albumin for cirrhotic patients with infections unrelated to spontaneous bacterial peritonitis: A still no answered question. J Gastroenterol Hepatol 2020; 35:2290-2291. [PMID: 33502039 DOI: 10.1111/jgh.15200] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 07/20/2020] [Accepted: 07/23/2020] [Indexed: 12/09/2022]
Affiliation(s)
- C Terra
- Liver Unit, Pedro Ernesto University Hospital, State University of Rio de Janeiro, Rio de Janeiro, Brazil.,Digestive Unit, Federal Hospital of Lagoa, Ministry of Health, Rio de Janeiro, Brazil
| | - R Perez
- Liver Unit, Pedro Ernesto University Hospital, State University of Rio de Janeiro, Rio de Janeiro, Brazil.,Liver Unit, Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,D'Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
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7
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Castro ER, Perez R, Rodriguez S, Bassetti L, Negro R, Vidal R. Epidemiological and virological findings during an outbreak of equine influenza in Uruguay in 2018. REV SCI TECH OIE 2020; 38:737-749. [PMID: 32286570 DOI: 10.20506/rst.38.3.3023] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Equine influenza is one of the major respiratory infectious diseases in horses. In 2018, equine influenza virus (EIV) was confirmed as the cause of outbreaks of respiratory disease in horses in Chile and Argentina. In the same year, for the first time in Uruguay, EIV infection was confirmed by isolation and molecular analysis to be the cause of respiratory disease among hundreds of clinically affected thoroughbred horses in training and racing facilities. The virus was detected in nasopharyngeal swabs by a pan-reactive influenza type A realtime reverse transcription polymerase chain reaction (rRT-PCR). The partial nucleotide sequence of the haemagglutinin 1 (HA1 ) gene (994 base pairs) was determined and analysed phylogenetically using MEGA X software. Amino acid sequence alignments were constructed, and serum samples were tested by haemagglutination inhibition and single radial haemolysis. The diagnosis of EIV was confirmed by rRT-PCR, virus isolation and serological testing. The phylogenetic analysis of the partial HA1 gene sequence of the isolated virus indicated that it belongs to clade 1 of the Florida sub-lineage of the American lineage and is closely related to viruses isolated in the recent past. Study of the HA1 region (331 amino acids) of the virus identified in horses in racing facilities in Uruguay displayed the highest amino acid sequence identity with viruses detected in Argentina, Chile and the United Kingdom in 2018. The surveillance data reported illustrate the international spread of EIVs and support the recommendation of the World Organisation for Animal Health (OIE) Expert Surveillance Panel to include viruses of the Florida sub-lineage in vaccines.
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Meyer V, Basenko EY, Benz JP, Braus GH, Caddick MX, Csukai M, de Vries RP, Endy D, Frisvad JC, Gunde-Cimerman N, Haarmann T, Hadar Y, Hansen K, Johnson RI, Keller NP, Kraševec N, Mortensen UH, Perez R, Ram AFJ, Record E, Ross P, Shapaval V, Steiniger C, van den Brink H, van Munster J, Yarden O, Wösten HAB. Growing a circular economy with fungal biotechnology: a white paper. Fungal Biol Biotechnol 2020; 7:5. [PMID: 32280481 PMCID: PMC7140391 DOI: 10.1186/s40694-020-00095-z] [Citation(s) in RCA: 150] [Impact Index Per Article: 37.5] [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: 03/03/2020] [Accepted: 03/23/2020] [Indexed: 12/25/2022] Open
Abstract
Fungi have the ability to transform organic materials into a rich and diverse set of useful products and provide distinct opportunities for tackling the urgent challenges before all humans. Fungal biotechnology can advance the transition from our petroleum-based economy into a bio-based circular economy and has the ability to sustainably produce resilient sources of food, feed, chemicals, fuels, textiles, and materials for construction, automotive and transportation industries, for furniture and beyond. Fungal biotechnology offers solutions for securing, stabilizing and enhancing the food supply for a growing human population, while simultaneously lowering greenhouse gas emissions. Fungal biotechnology has, thus, the potential to make a significant contribution to climate change mitigation and meeting the United Nation’s sustainable development goals through the rational improvement of new and established fungal cell factories. The White Paper presented here is the result of the 2nd Think Tank meeting held by the EUROFUNG consortium in Berlin in October 2019. This paper highlights discussions on current opportunities and research challenges in fungal biotechnology and aims to inform scientists, educators, the general public, industrial stakeholders and policymakers about the current fungal biotech revolution.
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Affiliation(s)
- Vera Meyer
- 1Chair of Applied and Molecular Microbiology, Institute of Biotechnology, Technische Universität Berlin, Gustav-Meyer-Allee 25, 13355 Berlin, Germany
| | - Evelina Y Basenko
- 2Institute of Integrative Biology, University of Liverpool, Biosciences Building, Crown Street, Liverpool, UK
| | - J Philipp Benz
- 3TUM School of Life Sciences Weihenstephan, Technical University of Munich, Holzforschung München, Hans-Carl-von-Carlowitz-Platz 2, 85354 Freising, Germany
| | - Gerhard H Braus
- 4Department of Molecular Microbiology & Genetics, Institute of Microbiology & Genetics, Georg-August-Universität Göttingen, Grisebachstr. 8, 37077 Göttingen, Germany
| | - Mark X Caddick
- 2Institute of Integrative Biology, University of Liverpool, Biosciences Building, Crown Street, Liverpool, UK
| | - Michael Csukai
- 5Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire RG42 6EY UK
| | - Ronald P de Vries
- 6Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University Uppsalalaan 8, 3584 CT Utrecht, Netherlands
| | - Drew Endy
- 7Department of Bioengineering, Stanford University, 443 Via Ortega, Stanford, CA USA
| | - Jens C Frisvad
- 8Department of Biotechnology and Biomedicine, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Nina Gunde-Cimerman
- 9Department Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
| | | | - Yitzhak Hadar
- 11Department of Plant Pathology and Microbiology, Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, 76100 Rehovot, Israel
| | - Kim Hansen
- 12Biotechnology Research, Production Strain Technology, Novozymes A/S, Krogshoejvej 36, 2880 Bagsvaerd, Denmark
| | - Robert I Johnson
- 13Quorn Foods, Station Road, Stokesley, North Yorkshire TS9 7AB UK
| | - Nancy P Keller
- 14Department of Medical Microbiology and Immunology, University of Wisconsin-Madison, Madison, 53706 USA
| | - Nada Kraševec
- 15Department of Molecular Biology and Nanobiotechnology, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia
| | - Uffe H Mortensen
- 8Department of Biotechnology and Biomedicine, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Rolando Perez
- 7Department of Bioengineering, Stanford University, 443 Via Ortega, Stanford, CA USA
| | - Arthur F J Ram
- 16Institute of Biology Leiden, Molecular Microbiology and Biotechnology, Leiden University, Sylviusweg 72, 2333 BE Leiden, The Netherlands
| | - Eric Record
- 17French National Institute for Agriculture, Food and the Environment, INRAE, UMR1163, Biodiversité et Biotechnologie Fongiques, Aix-Marseille Université, Marseille, France
| | - Phil Ross
- MycoWorks, Inc, 669 Grand View Avenue, San Francisco, USA
| | - Volha Shapaval
- 19Faculty of Science and Technology, Norwegian University of Life Sciences, Droebakveien, 31 1430 Aas, Norway
| | - Charlotte Steiniger
- 1Chair of Applied and Molecular Microbiology, Institute of Biotechnology, Technische Universität Berlin, Gustav-Meyer-Allee 25, 13355 Berlin, Germany
| | | | - Jolanda van Munster
- 21The University of Manchester, Manchester Institute of Biotechnology (MIB) & School of Natural Sciences, 131 Princess Street, Manchester, M1 7DN UK
| | - Oded Yarden
- 11Department of Plant Pathology and Microbiology, Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, 76100 Rehovot, Israel
| | - Han A B Wösten
- 22Department of Biology, Microbiology, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
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Perez R, Luccioni M, Kamakaka R, Clamons S, Gaut N, Stirling F, Adamala KP, Silver PA, Endy D. Enabling community-based metrology for wood-degrading fungi. Fungal Biol Biotechnol 2020; 7:2. [PMID: 32206323 PMCID: PMC7081594 DOI: 10.1186/s40694-020-00092-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 02/25/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Lignocellulosic biomass could support a greatly-expanded bioeconomy. Current strategies for using biomass typically rely on single-cell organisms and extensive ancillary equipment to produce precursors for downstream manufacturing processes. Alternative forms of bioproduction based on solid-state fermentation and wood-degrading fungi could enable more direct means of manufacture. However, basic methods for cultivating wood-degrading fungi are often ad hoc and not readily reproducible. Here, we developed standard reference strains, substrates, measurements, and methods sufficient to begin to enable reliable reuse of mycological materials and products in simple laboratory settings. RESULTS We show that a widely-available and globally-regularized consumer product (Pringles™) can support the growth of wood-degrading fungi, and that growth on Pringles™-broth can be correlated with growth on media made from a fully-traceable and compositionally characterized substrate (National Institute of Standards and Technology Reference Material 8492 Eastern Cottonwood Whole Biomass Feedstock). We also establish a Relative Extension Unit (REU) framework that is designed to reduce variation in quantification of radial growth measurements. So enabled, we demonstrate that five laboratories were able to compare measurements of wood-fungus performance via a simple radial extension growth rate assay, and that our REU-based approach reduced variation in reported measurements by up to ~ 75%. CONCLUSIONS Reliable reuse of materials, measures, and methods is necessary to enable distributed bioproduction processes that can be adopted at all scales, from local to industrial. Our community-based measurement methods incentivize practitioners to coordinate the reuse of standard materials, methods, strains, and to share information supporting work with wood-degrading fungi.
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Affiliation(s)
- Rolando Perez
- Department of Bioengineering, Schools of Engineering and Medicine, Stanford University, Room 252, Shriram Center, 443 Via Ortega, Stanford, CA 94305 USA
| | - Marina Luccioni
- Department of Bioengineering, Schools of Engineering and Medicine, Stanford University, Room 252, Shriram Center, 443 Via Ortega, Stanford, CA 94305 USA
| | - Rohinton Kamakaka
- Department of MCD Biology, University of California, Santa Cruz, 1156 High Street, Santa Cruz, CA 95064 USA
| | - Samuel Clamons
- Department of Chemistry and Molecular Biophysics, California Institute of Technology, 1200 E. California Blvd, MC 138-78, Pasadena, CA 91125 USA
- Department of Control and Dynamical Systems, California Institute of Technology, 1200 E. California Blvd, MC 138-78, Pasadena, CA 91125 USA
| | - Nathaniel Gaut
- Department of Genetics, Cell Biology, and Development, College of Biological Sciences, University of Minnesota, 420 Washington Ave. SE, 5-178 MCB, Minneapolis, MN 55455 USA
| | - Finn Stirling
- Department of Systems Biology, Harvard Medical School, 200 Longwood Avenue, Warren Alpert Building, Boston, MA 02115 USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, 200 Longwood Avenue, Warren Alpert Building, Boston, MA 02115 USA
| | - Katarzyna P. Adamala
- Department of Genetics, Cell Biology, and Development, College of Biological Sciences, University of Minnesota, 420 Washington Ave. SE, 5-178 MCB, Minneapolis, MN 55455 USA
| | - Pamela A. Silver
- Department of Systems Biology, Harvard Medical School, 200 Longwood Avenue, Warren Alpert Building, Boston, MA 02115 USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, 200 Longwood Avenue, Warren Alpert Building, Boston, MA 02115 USA
| | - Drew Endy
- Department of Bioengineering, Schools of Engineering and Medicine, Stanford University, Room 252, Shriram Center, 443 Via Ortega, Stanford, CA 94305 USA
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Monsalve FA, Rojas A, Gonzalez I, Perez R, Añasco C, Romero J, Araya P, Santos LS, Delgado-Lopez F. RID: Evaluation of the Possible Inhibiting Effect of the Proinflammatory Signaling Induced by TNF- α through NF- κβ and AP-1 in Two Cell Lines of Breast Cancer. Mediators Inflamm 2020; 2020:2707635. [PMID: 32655311 PMCID: PMC7327562 DOI: 10.1155/2020/2707635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 04/16/2020] [Accepted: 05/11/2020] [Indexed: 02/07/2023] Open
Abstract
Receptor internalization and degradation (RID), is a transmembrane protein coded within the E3 region expression cassette of adenoviruses. RID downregulates the cell surface expression of epidermal growth factor receptor (EGFR), tumor necrosis factor receptor (TNFR), and apoptosis antigen 1 (FAS), causing a reduction of the effects of their respective ligands. In addition, RID inhibits apoptosis by decreasing the secretion of TNF-related apoptosis-inducing ligand (TRAIL) by normal tissue cells. In this article, we report that RID inhibited chemokine expression in human breast cancer cell line MDA-MB-231 but showed no effect in cell line MCF7. These dissimilar results may be due to the different molecular and functional properties of both cell lines. Therefore, it is necessary to replicate this study in other breast cancer cell models.
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Affiliation(s)
- F. A. Monsalve
- 1Department of Basic Biomedical Sciences, Faculty of Health Sciences, University of Talca, Chile
| | - A. Rojas
- 2Laboratories of Biomedical Research, Division of Medicine, Universidad Católica del Maule, Chile
| | - I. Gonzalez
- 2Laboratories of Biomedical Research, Division of Medicine, Universidad Católica del Maule, Chile
| | - R. Perez
- 2Laboratories of Biomedical Research, Division of Medicine, Universidad Católica del Maule, Chile
| | - C. Añasco
- 2Laboratories of Biomedical Research, Division of Medicine, Universidad Católica del Maule, Chile
| | - J. Romero
- 2Laboratories of Biomedical Research, Division of Medicine, Universidad Católica del Maule, Chile
| | - P. Araya
- 2Laboratories of Biomedical Research, Division of Medicine, Universidad Católica del Maule, Chile
| | - L. S. Santos
- 3Laboratory of Asymmetric Synthesis, Institute of Chemistry and Natural Products, University of Talca, Chile
| | - F. Delgado-Lopez
- 2Laboratories of Biomedical Research, Division of Medicine, Universidad Católica del Maule, Chile
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Valencia-Martín R, Gonzalez-Galan V, Alvarez-Marín R, Cazalla-Foncueva AM, Aldabó T, Gil-Navarro MV, Alonso-Araujo I, Martin C, Gordon R, García-Nuñez EJ, Perez R, Peñalva G, Aznar J, Conde M, Cisneros JM. A multimodal intervention program to control a long-term Acinetobacter baumannii endemic in a tertiary care hospital. Antimicrob Resist Infect Control 2019; 8:199. [PMID: 31827780 PMCID: PMC6894224 DOI: 10.1186/s13756-019-0658-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [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: 08/03/2019] [Accepted: 11/25/2019] [Indexed: 11/29/2022] Open
Abstract
Background Acinetobacter baumannii causes frequently nosocomial infections worldwide. Its ability to survive on dry surfaces facilitates its spread and the persistence of endemic situations, especially in the intensive care units (ICUs). The objective of this paper is to describe a multicomponent intervention program designed to control a hyperendemic persistence of multidrug-resistant A. baumannii (MDR-Ab) and to characterize its impact. Methods Design: Quasi-experimental intervention study based on open cohorts. Setting: Public tertiary referral centre. Period: January 2009–August 2017. Intervention: multifaceted program based on environmental decontamination, hand hygiene, antimicrobial stewardship, contact precautions, active surveillance, weekly reports and regular meetings. Analysis: joinpoint regression and interrupted time-series analysis. Results The intervention was successfully implemented. Through the study period, the compliance with contact precautions changed from 0 to 100% and with hand hygiene, from 41.8 to 82.3%. Between 2012 and 2016, the antibiotic consumption decreased from 165.35 in to 150.44 daily-defined doses/1000 patients-days in the ICU. The incidence density of MDR-Ab in the ICU was 10.9 cases/1000 patients-days at the beginning of the intervention. After this moment, the evolution of the incidence density of MDR-Ab was: between months 0 and 6°, it remained stable; between months 7° and 10°: there was an intense decrease, with an average monthly percentage change (AMPC) = − 30.05%; from 11° month until the end, the decrease was lighter but continuous (AMPC:-2.77%), achieving an incidence density of 0 cases/1000 patients-days on the 18° month, without any new case for 12 months. From the 30° month until the end of the study period, several little outbreaks of MDR-Ab were detected, all of them rapidly controlled. The strains of MDR-Ab isolated during these outbreaks were not clonally related with the previously endemic one, which supports its eradication from the environmental reservoirs. Conclusion The multicomponent intervention performed by a multidisciplinary team was effective to eradicate the endemic MDR-Ab.
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Affiliation(s)
- R Valencia-Martín
- 1Departments of Infectious Diseases, Microbiology, and Preventive Medicine, University Hospital Virgen del Rocío-Institute of Biomedicine of Seville, Avenida Manuel Siurot s/n, 41013 Seville, Spain
| | - V Gonzalez-Galan
- 1Departments of Infectious Diseases, Microbiology, and Preventive Medicine, University Hospital Virgen del Rocío-Institute of Biomedicine of Seville, Avenida Manuel Siurot s/n, 41013 Seville, Spain
| | - R Alvarez-Marín
- 1Departments of Infectious Diseases, Microbiology, and Preventive Medicine, University Hospital Virgen del Rocío-Institute of Biomedicine of Seville, Avenida Manuel Siurot s/n, 41013 Seville, Spain
| | - A M Cazalla-Foncueva
- 1Departments of Infectious Diseases, Microbiology, and Preventive Medicine, University Hospital Virgen del Rocío-Institute of Biomedicine of Seville, Avenida Manuel Siurot s/n, 41013 Seville, Spain
| | - T Aldabó
- 2Department of Intensive Care, University Hospital Virgen del Rocío, Seville, Spain
| | - M V Gil-Navarro
- 3Department of Pharmacy, University Hospital Virgen del Rocío, Seville, Spain
| | - I Alonso-Araujo
- 2Department of Intensive Care, University Hospital Virgen del Rocío, Seville, Spain
| | - C Martin
- 2Department of Intensive Care, University Hospital Virgen del Rocío, Seville, Spain
| | - R Gordon
- 4Cleaning Service, University Hospital Virgen del Rocío, Seville, Spain
| | | | - R Perez
- 5University Hospital Virgen del Rocío, Seville, Spain
| | - G Peñalva
- 1Departments of Infectious Diseases, Microbiology, and Preventive Medicine, University Hospital Virgen del Rocío-Institute of Biomedicine of Seville, Avenida Manuel Siurot s/n, 41013 Seville, Spain
| | - J Aznar
- 1Departments of Infectious Diseases, Microbiology, and Preventive Medicine, University Hospital Virgen del Rocío-Institute of Biomedicine of Seville, Avenida Manuel Siurot s/n, 41013 Seville, Spain
| | - M Conde
- 1Departments of Infectious Diseases, Microbiology, and Preventive Medicine, University Hospital Virgen del Rocío-Institute of Biomedicine of Seville, Avenida Manuel Siurot s/n, 41013 Seville, Spain
| | - J M Cisneros
- 1Departments of Infectious Diseases, Microbiology, and Preventive Medicine, University Hospital Virgen del Rocío-Institute of Biomedicine of Seville, Avenida Manuel Siurot s/n, 41013 Seville, Spain
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Miller KD, Milne P, Baker S, Barr D, Haghani A, Loo B, Matteini P, Monson KD, Perez R, Rawn T, Rosi F, Schmitz J, Summer S, Yadlapalli S. Determination of Low-Level Pesticide Residues in Soft Drinks and Sports Drinks by Liquid Chromatography with Tandem Mass Spectrometry: Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/91.1.181] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
A collaborative study was conducted on a method for the measurement of 11 low-level pesticide residues in soft drinks and sports drinks by liquid chromatography with tandem mass spectrometry. The pesticide residues determined in this study were alachlor, atrazine, butachlor, isoproturon, malaoxon, monocrotophos, methyl paraoxon, phorate, phorate sulfone, phorate sulfoxide, and 2,4-dichlorophenoxyacetic acid (2,4-D). Blind fortification solutions containing 3 different levels of pesticide residues were provided to 9 collaborating laboratories to create test samples at concentrations of 0, 0.1, and 0.5 g/L with a 10-fold concentration for phorate in a total of 6 matrixes (2 colas, 1 diet cola, 1 clear lemon-lime soft drink, 1 orange soft drink, and 1 sports drink). Good qualitative performance of the method was demonstrated for all pesticide residues. Reproducibility relative standard deviation (RSDR) ranged from 7 to 151 for alachlor, atrazine, butachlor, isoproturon, malaoxon, monocrotophos, methyl paraoxon, phorate, phorate sulfone, phorate sulfoxide, and 2,4-D at the 0.1 g/L level (1.0 g/L for phorate). At 0.5 g/L (5.0 g/L for phorate), RSDR ranged from 9 to 57 for alachlor, atrazine, butachlor isoproturon, malaoxon, monocrotophos, methyl paraoxon, phorate, phorate sulfone, phorate sulfoxide, and 2,4-D in all matrixes. Repeatability relative standard deviation (RSDr), applicable to the diet cola and sports drink, ranged from 0 to 124 for the 11 pesticide residues at the 0.1 g/L level (1.0 g/L for phorate). At 0.5 g/L (5.0 g/L for phorate), RSDr ranged from 4 to 26. Recoveries for the 11 pesticide residues in all matrixes ranged from 84 to 300 at the 0.1 g/L level (1.0 g/L for phorate) and from 66 to 127 at the 0.5 g/L (5.0 g/L for phorate) level. Coefficients of determination (r2) of the matrix-matched calibration curves were 0.95. It is recommended that the method be accepted by AOAC as Official First Action with a limit of quantification of 0.5 g/L for alachlor, atrazine, butachlor, isoproturon, malaoxon, methyl paraoxon, monocrotophos, phorate sulfone, phorate sulfoxide, and 2,4-D and 5.0 g/L for phorate.
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Affiliation(s)
| | - Paul Milne
- PepsiCo Inc, 100 Stevens Ave, Valhalla, NY 10595
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Miller KD, Milne P, Berry B, Loo B, Matteini P, Monson KD, Perez R, Rawn T, Reuther J, Rosi F, Summer S, Varelis P. Determination of Pesticide Residues (>0.5 g/L) in Soft Drinks and Sports Drinks by Gas Chromatography with Mass Spectrometry: Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/91.1.202] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
A collaborative study was conducted on a method for the measurement of 19 low-level pesticide residues in soft drinks and sports drinks by gas chromatography with mass spectrometry (GC/MS). The pesticide residues determined were 2,4-dichlorodiphenyldichloroethylene (2,4-DDE); 2,4-dichlorodiphenyldichloroethane (2,4-DDD); 4,4-dichlorodiphenyldichloroethylene (4,4-DDE); 2,4-dichlorodiphenyltrichloroethane (2,4-DDT); 4,4-dichlorodiphenyltrichloroethane (4,4-DDT); 4,4-dichlorodiphenyldichloroethane (4,4-DDD); -endosulfan; endosulfan-sulfate; dieldrin; aldrin; ethion; chlorpyrifos; -endosulfan; malathion; methyl-parathion; -hexachlorocyclohexane (-HCH); -HCH; -HCH; and -HCH. Blind fortification solutions containing 4 different levels of pesticide residues (0, 0.1, 0.5, and 1.0 g/L) were provided to 8 collaborating laboratories who used them to create test samples in 6 matrixes (also provided): 2 colas, a diet cola, a clear lemon-lime soft drink, an orange soft drink, and a sports drink. Reproducibility (RSDR) for all 19 pesticide residues in all matrixes ranged from 7 to 151 at the 0.1 g/L level, 11 to 121 at 0.5 g/L, and 14 to 67 at 1.0 g/L. Repeatability (RSDr), applicable to the diet cola and the sports drink, ranged from 1 to 76 for the 19 pesticide residues at the 0.1 g/L level, 9 to 38 at 0.5 g/L, and 9 to 38 at 1.0 g/L. Recoveries for the 19 pesticide residues in allmatrixes ranged from 77 to 645 at the 0.1 g/L level, 60 to 231 at 0.5 g/L, and 61 to 146 at 1.0 g/L. It is recommended that the method be accepted by AOAC as Official First Action with a limit of quantification (LOQ) equal to 0.5 g/L for 4,4-DDT; 2,4-DDT; 2,4-DDD; 4,4-DDE; 4,4-DDD; 2,4-DDE; aldrin; dieldrin; -endosulfan; endosulfan-sulfate; chlorpyrifos; and ethion, and an LOQ equal to 1.0 g/L for -endosulfan; -HCH; -HCH; -HCH; -HCH; methyl-parathion; and malathion.
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Affiliation(s)
| | - Paul Milne
- PepsiCo Inc, 100 Stevens Ave, Valhalla, NY 10595
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14
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Roman MC, Gray D, Luo G, McClanahan R, Perez R, Roper C, Roscoe V, Shevchuk C, Suen E, Sullivan D, Walther HJ. Determination of Ephedrine Alkaloids in Botanicals and Dietary Supplements by HPLC-UV: Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/87.1.1] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
An international collaborative study was conducted of a high-performance liquid chromatography (HPLC)-UV method for the determination of the major (ephedrine [EP] and pseudoephedrine [PS]) and minor (norephedrine [NE], norpseudoephedrine [NP], methylephedrine [ME], and methylpseudoephedrine [MP]) alkaloids in selected dietary supplements representative of the commercially available products. Ten collaborating laboratories determined the ephedrine-type alkaloid content in 8 blind replicate samples. Five products contained ephedra ground herb or ephedra extract. These 5 products included ground botanical raw material of Ephedra sinica, a common powdered extract of Ephedra sinica, a finished product containing only Ephedra sinica ground botanical raw material, a complex multicomponent dietary supplement containing Ma Huang, and a high-protein chocolate flavored drink mix containing Ma Huang extract. In addition, collaborating laboratories received a negative control and negative control spiked with ephedrine alkaloids at high and low levels for recovery studies. Test extracts were treated to solid-phase extraction using a strong-cation exchange column to help remove interferences. The HPLC analyses were performed on a polar-embedded phenyl column using UV detection at 210 nm. Repeatability relative standard deviations (RSD r) ranged from 0.64–3.0% for EP and 2.0–6.6% for PS, excluding the high protein drink mix. Reproducibility relative standard deviations (RSD R) ranged from 2.1–6.6% for EP and 9.0–11.4% for PS, excluding the high protein drink mix. Recoveries ranged from 84.7–87.2% for EP and 84.6–98.2% for PS. The data developed for the minor alkaloids are more variable with generally unsatisfactory HORRATS (i.e., >2). However, since these alkaloids generally add little to the total alkaloid content of the products, the method gives satisfactory results in measuring total alkaloid content (RSD r 0.85–3.13%; RSDR 2.03–10.97%, HORRAT 0.69–3.23, exclusive of the results from the high protein drink). On the basis of these results, the method is recommended for Official First Action for determination of EP and PS in dietary supplements exclusive of the high protein drinks.
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Affiliation(s)
- Mark C Roman
- ChromaDex, 13161 56th Ct, Suite 201, Clearwater, FL 33760
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15
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Trujillo WA, Sorenson WR, Gray D, Laurensen J, Luo G, McClanahan R, Perez R, Roper C, Kotello S, Shevchuk C, Suen E, Sullivan D. Determination of Ephedrine Alkaloids in Human Urine and Plasma by Liquid Chromatography/Tandem Mass Spectrometry: Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/86.4.643] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
A collaborative study was conducted to evaluate the accuracy and precision of a method for ephedrine-type alkaloids (i.e., norephedrine, norpseudoephedrine, ephedrine, pseudoephedrine, methylephedrine, and methylpseudoephedrine) in human urine and plasma. The amount of ephedrine-type alkaloids present was determined using liquid chromatography (LC) with tandem mass selective detection. The test samples were diluted to reflect a concentration of 5.00–100 ng/mL for each alkaloid. An internal standard was added and the alkaloids were separated using a 5 μm phenyl LC column with an ammonium acetate, glacial acetic acid, acetonitrile, and water mobile phase. Eight blind duplicates of human urine and eight blind duplicates of human plasma were analyzed by 10 collaborators. In addition to negative controls, test portions of urine and plasma were fortified at 3 different levels with each of the 6 ephedrine-type alkaloids at approximately 1, 2, and 5 μg/mL for urine and 100, 200, and 500 ng/mL for plasma. On the basis of the accuracy and precision results for this collaborative study, it is recommended that this method be adopted Official First Action for the determination of 6 different ephedrine-type alkaloids in human urine and plasma.
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16
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Trujillo WA, Sorenson WR, Laurensen J, Luo G, McClanahan R, Perez R, Roper C, Kotello S, Schwind B, Shevchuk C, Suen E, Sullivan D. Determination of Ephedrine Alkaloids in Dietary Supplements and Botanicals by Liquid Chromatography/Tandem Mass Spectrometry: Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/86.4.657] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
An interlaboratory study was conducted to evaluate the accuracy and precision of a method for ephedrine-type alkaloids [i.e., norephedrine (NE), norpseudoephedrine (NPE), ephedrine (E), pseudoephedrine (PE), methylephedrine (ME), and methylpseudoephedrine (MPE)] in dietary supplements and botanicals. The amount of ephedrine-type alkaloids present was determined using liquid chromatography with tandem mass selective detection. The samples were diluted to reflect a concentration of 0.0200 to 1.00 μg/mL for each alkaloid. An internal standard was added and the alkaloids were separated using a 5 μm phenyl LC column with an ammonium acetate, glacial acetic acid, acetonitrile, and water mobile phase. Eight blind duplicates of dietary supplements or botanicals were analyzed by 10 collaborators. Included was a negative control, ephedra nevadensis, and negative controls fortified at 2 different levels with each of the 6 ephedrine-type alkaloids. The spike levels were approximately 100 and 1000 μg/g for NE, 100 and 600 μg/g for NPE, 6500 and 65 000 μg/g for E, 1000 and 10 000 μg/g for PE, 300 and 3000 μg/g for ME, and 100 and 1000 μg/g for MPE. On the basis of the accuracy and precision results for this interlaboratory study, it is recommended that this method be adopted Official First Action for the determination of 6 different individual ephedrine-type alkaloids in dietary supplements and botanicals.
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Van Spall HGC, Lee SF, Averbuch T, Erbas Oz U, Perez R, Ko DT, Connolly SJ. P6351A point-of-care risk score predicts 30-day readmission in patients hospitalized with heart failure (HF): derivation and validation of the LENT index. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0947] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Risk prediction models in heart failure (HF) are typically complex, derived retrospectively from administrative databases, and modest in their ability to discriminate between high, medium, and low risk categories. The complexity of these models makes them difficult to use at the point of care.
Purpose
To determine if a simple risk index using Length of hospital stay (L), number of Emergency department visits in the preceding 6 months (E), and either admission or discharge N-Terminal (NT) prohormone of Brain Natriuretic Peptide (pro-BNP) at the point of care can predict 30-day readmissions in patients hospitalized for HF.
Methods
This is a sub-study of the Patient-Centered Care Transitions in HF (PACT-HF) stepped-wedge cluster randomized trial. We included 772 patients hospitalized for HF at 10 Canadian hospitals. We used log-binomial regression models with Length of stay, Emergency department visits in the preceding 6 months, and either admission or discharge N-Terminal prohormone of Brain Natriuretic Peptide (NT-pro-BNP) as the predictor variables and 30-day all-cause readmission as the outcome. We derived the LENT risk score from the β-coefficients of the regression model (Fig. 1). All the models were adjusted for post-discharge services. We assessed model discrimination with C-statistics and model calibration with the net reclassification index (NRI). We used the bootstrapping approach with 100 runs for internal validation.
Results
The LENT index had a possible score ranging from 1 to 13 (Fig 1). Increments in the LENT risk score were associated with an increased risk of 30-day readmission; a 1-point increase in the LENT index using the admission and discharge NT-pro-BNP predicted a 23% and 19% increase in 30-day readmission risk, respectively. The internal validation produced similar results. Compared to a null model, the LE index had an NRI of 0.35 [95% CI 0.18, 0.53], and admission and discharge NT-pro-BNP further improved calibration of the LE index (NRI 0.15 [95% CI 0, 0.32] and 0.20 [95% CI 0.03, 0.37], respectively). The LENT index offered modest discrimination for 30-day readmission (C-statistic 0.64 [95% CI 0.59, 0.69]), similar to more complex risk models.
Figure 1. The LENT index scoring system
Conclusion
A simple risk index based on Length of stay, Emergent visits, and NT-pro-BNP at the point of care can reliably predict 30-day readmissions. The LENT index offers ease of use over traditional risk prediction models.
Acknowledgement/Funding
Canadian Institutes of Health Research, Ontario MOHLTC, Roche Diagnostics
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Affiliation(s)
- H G C Van Spall
- Population Health Research Institute, McMaster University, Hamilton, Canada
| | - S F Lee
- Population Health Research Institute, McMaster University, Hamilton, Canada
| | | | - U Erbas Oz
- Institute for Clinical Evaluative Sciences, Hamilton, Canada
| | - R Perez
- Institute for Clinical Evaluative Sciences, Hamilton, Canada
| | - D T Ko
- Institute for Clinical Evaluative Sciences, Toronto, Canada
| | - S J Connolly
- Population Health Research Institute, McMaster University, Hamilton, Canada
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Peix A, Perez A, Padron K, Pena Y, Bencomo LL, Martinez A, Cabrera LO, Perez R, Oro C. P566Chagas cardiomyopathy: what CMR can reveal. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez108.003] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- A Peix
- Institute of Cardiology, Havana, Cuba
| | - A Perez
- Institute of Cardiology, Havana, Cuba
| | - K Padron
- Institute of Cardiology, Havana, Cuba
| | - Y Pena
- Institute of Cardiology, Havana, Cuba
| | | | | | | | - R Perez
- Institute of Cardiology, Havana, Cuba
| | - C Oro
- Institute of Cardiology, Havana, Cuba
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Martínez S, Lasa EM, Joral A, Infante S, Perez R, Ibáñez MD. Recommendations for the Use of Propofol in Egg-Allergic Patients. J Investig Allergol Clin Immunol 2019; 29:72-74. [DOI: 10.18176/jiaci.0337] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Goebel A, Barker C, Birklein F, Brunner F, Casale R, Eccleston C, Eisenberg E, McCabe CS, Moseley GL, Perez R, Perrot S, Terkelsen A, Thomassen I, Zyluk A, Wells C. Standards for the diagnosis and management of complex regional pain syndrome: Results of a European Pain Federation task force. Eur J Pain 2019; 23:641-651. [PMID: 30620109 PMCID: PMC6593444 DOI: 10.1002/ejp.1362] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [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: 09/07/2018] [Revised: 01/03/2019] [Accepted: 01/04/2019] [Indexed: 11/25/2022]
Abstract
Background Complex regional pain syndrome is a painful and disabling post‐traumatic primary pain disorder. Acute and chronic complex regional pain syndrome (CRPS) are major clinical challenges. In Europe, progress is hampered by significant heterogeneity in clinical practice. We sought to establish standards for the diagnosis and management of CRPS. Methods The European Pain Federation established a pan‐European task force of experts in CRPS who followed a four‐stage consensus challenge process to produce mandatory quality standards worded as grammatically imperative (must‐do) statements. Results We developed 17 standards in 8 areas of care. There are 2 standards in diagnosis, 1 in multidisciplinary care, 1 in assessment, 3 for care pathways, 1 in information and education, 4 in pain management, 3 in physical rehabilitation and 2 on distress management. The standards are presented and summarized, and their generation and consequences were discussed. Also presented are domains of practice for which no agreement on a standard could be reached. Areas of research needed to improve the validity and uptake of these standards are discussed. Conclusion The European Pain Federation task force present 17 standards of the diagnosis and management of CRPS for use in Europe. These are considered achievable for most countries and aspirational for a minority of countries depending on their healthcare resource and structures. Significance This position statement summarizes expert opinion on acceptable standards for CRPS care in Europe.
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Affiliation(s)
- Andreas Goebel
- Walton Centre NHS Foundation Trust, Liverpool, UK.,Pain Research Institute, University of Liverpool, Liverpool, UK
| | - Chris Barker
- Walton Centre NHS Foundation Trust, Liverpool, UK.,Pain Research Institute, University of Liverpool, Liverpool, UK
| | - Frank Birklein
- Department of Neurology, University of Mainz, Mainz, Germany
| | - Florian Brunner
- Physical Medicine and Rheumatology, Balgrist University Hospital, Zurich, Switzerland
| | - Roberto Casale
- Pain Rehabilitation Unit, Habilita Hospitals, Zingonia di Ciserano, Italy
| | - Chris Eccleston
- Centre for Pain Research, The University of Bath, Bath, Uk.,Department of Clinical and Health Psychology, Ghent University, Ghent, Belgium.,European Pain Federation, Brussels, Belgium
| | - E Eisenberg
- Rambam Health Care Campus, Institute of Pain Medicine, Haifa, Israel
| | - Candy S McCabe
- Florence Nightingale Foundation Clinical Professor of Nursing, University of West of England, Bristol & Royal United Hospitals NHS Foundation Trust, Bath, UK
| | | | - R Perez
- Department of Anaesthesiology, VU University Medical Center, Amsterdam, Netherlands
| | - Serge Perrot
- Pain Center, Cochin Hospital, Paris Descartes University, Paris, France
| | - Astrid Terkelsen
- Danish Pain Research Center and Department of Neurology, Aarhus University Hospital, Aarhus, Denmark
| | | | - Andrzey Zyluk
- Department of General and Hand Surgery, Pomeranian Medical University, Szczecin, Poland
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Lognonné P, Banerdt WB, Giardini D, Pike WT, Christensen U, Laudet P, de Raucourt S, Zweifel P, Calcutt S, Bierwirth M, Hurst KJ, Ijpelaan F, Umland JW, Llorca-Cejudo R, Larson SA, Garcia RF, Kedar S, Knapmeyer-Endrun B, Mimoun D, Mocquet A, Panning MP, Weber RC, Sylvestre-Baron A, Pont G, Verdier N, Kerjean L, Facto LJ, Gharakanian V, Feldman JE, Hoffman TL, Klein DB, Klein K, Onufer NP, Paredes-Garcia J, Petkov MP, Willis JR, Smrekar SE, Drilleau M, Gabsi T, Nebut T, Robert O, Tillier S, Moreau C, Parise M, Aveni G, Ben Charef S, Bennour Y, Camus T, Dandonneau PA, Desfoux C, Lecomte B, Pot O, Revuz P, Mance D, tenPierick J, Bowles NE, Charalambous C, Delahunty AK, Hurley J, Irshad R, Liu H, Mukherjee AG, Standley IM, Stott AE, Temple J, Warren T, Eberhardt M, Kramer A, Kühne W, Miettinen EP, Monecke M, Aicardi C, André M, Baroukh J, Borrien A, Bouisset A, Boutte P, Brethomé K, Brysbaert C, Carlier T, Deleuze M, Desmarres JM, Dilhan D, Doucet C, Faye D, Faye-Refalo N, Gonzalez R, Imbert C, Larigauderie C, Locatelli E, Luno L, Meyer JR, Mialhe F, Mouret JM, Nonon M, Pahn Y, Paillet A, Pasquier P, Perez G, Perez R, Perrin L, Pouilloux B, Rosak A, Savin de Larclause I, Sicre J, Sodki M, Toulemont N, Vella B, Yana C, Alibay F, Avalos OM, Balzer MA, Bhandari P, Blanco E, Bone BD, Bousman JC, Bruneau P, Calef FJ, Calvet RJ, D’Agostino SA, de los Santos G, Deen RG, Denise RW, Ervin J, Ferraro NW, Gengl HE, Grinblat F, Hernandez D, Hetzel M, Johnson ME, Khachikyan L, Lin JY, Madzunkov SM, Marshall SL, Mikellides IG, Miller EA, Raff W, Singer JE, Sunday CM, Villalvazo JF, Wallace MC, Banfield D, Rodriguez-Manfredi JA, Russell CT, Trebi-Ollennu A, Maki JN, Beucler E, Böse M, Bonjour C, Berenguer JL, Ceylan S, Clinton J, Conejero V, Daubar I, Dehant V, Delage P, Euchner F, Estève I, Fayon L, Ferraioli L, Johnson CL, Gagnepain-Beyneix J, Golombek M, Khan A, Kawamura T, Kenda B, Labrot P, Murdoch N, Pardo C, Perrin C, Pou L, Sauron A, Savoie D, Stähler S, Stutzmann E, Teanby NA, Tromp J, van Driel M, Wieczorek M, Widmer-Schnidrig R, Wookey J. SEIS: Insight's Seismic Experiment for Internal Structure of Mars. Space Sci Rev 2019; 215:12. [PMID: 30880848 PMCID: PMC6394762 DOI: 10.1007/s11214-018-0574-6] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 12/29/2018] [Indexed: 05/23/2023]
Abstract
UNLABELLED By the end of 2018, 42 years after the landing of the two Viking seismometers on Mars, InSight will deploy onto Mars' surface the SEIS (Seismic Experiment for Internal Structure) instrument; a six-axes seismometer equipped with both a long-period three-axes Very Broad Band (VBB) instrument and a three-axes short-period (SP) instrument. These six sensors will cover a broad range of the seismic bandwidth, from 0.01 Hz to 50 Hz, with possible extension to longer periods. Data will be transmitted in the form of three continuous VBB components at 2 sample per second (sps), an estimation of the short period energy content from the SP at 1 sps and a continuous compound VBB/SP vertical axis at 10 sps. The continuous streams will be augmented by requested event data with sample rates from 20 to 100 sps. SEIS will improve upon the existing resolution of Viking's Mars seismic monitoring by a factor of ∼ 2500 at 1 Hz and ∼ 200 000 at 0.1 Hz. An additional major improvement is that, contrary to Viking, the seismometers will be deployed via a robotic arm directly onto Mars' surface and will be protected against temperature and wind by highly efficient thermal and wind shielding. Based on existing knowledge of Mars, it is reasonable to infer a moment magnitude detection threshold of M w ∼ 3 at 40 ∘ epicentral distance and a potential to detect several tens of quakes and about five impacts per year. In this paper, we first describe the science goals of the experiment and the rationale used to define its requirements. We then provide a detailed description of the hardware, from the sensors to the deployment system and associated performance, including transfer functions of the seismic sensors and temperature sensors. We conclude by describing the experiment ground segment, including data processing services, outreach and education networks and provide a description of the format to be used for future data distribution. ELECTRONIC SUPPLEMENTARY MATERIAL The online version of this article (10.1007/s11214-018-0574-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- P. Lognonné
- Institut de Physique du Globe de Paris-Sorbonne Paris Cité, Université Paris Diderot (UMR 7154 CNRS), Planetology et Space Science Team, 35 Rue Hélène Brion, Paris, 75013 France
| | - W. B. Banerdt
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - D. Giardini
- Institut of Geophysics, ETHZ, Sonneggstrasse 5, 8092 Zurich, Switzerland
| | - W. T. Pike
- Department of Electrical and Electronic Engineering, Faculty of Engineering, Imperial College London, London, UK
| | - U. Christensen
- Department of Planets and Comets, Max Planck Institute for Solar System Research, Göttingen, Germany
| | - P. Laudet
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - S. de Raucourt
- Institut de Physique du Globe de Paris-Sorbonne Paris Cité, Université Paris Diderot (UMR 7154 CNRS), Planetology et Space Science Team, 35 Rue Hélène Brion, Paris, 75013 France
| | - P. Zweifel
- Institut of Geophysics, ETHZ, Sonneggstrasse 5, 8092 Zurich, Switzerland
| | - S. Calcutt
- Atmospheric, Oceanic, & Planetary Physics, University of Oxford, Parks Road, Oxford, OX1 3PU UK
- Clarendon Laboratory, University of Oxford, Parks Road, Oxford, OX1 3PU UK
| | - M. Bierwirth
- Department of Planets and Comets, Max Planck Institute for Solar System Research, Göttingen, Germany
| | - K. J. Hurst
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - F. Ijpelaan
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - J. W. Umland
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - R. Llorca-Cejudo
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - S. A. Larson
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - R. F. Garcia
- ISAE-SUPAERO, Toulouse University, 10 Avenue E. Belin, 31400 Toulouse, France
| | - S. Kedar
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - B. Knapmeyer-Endrun
- Department of Planets and Comets, Max Planck Institute for Solar System Research, Göttingen, Germany
| | - D. Mimoun
- ISAE-SUPAERO, Toulouse University, 10 Avenue E. Belin, 31400 Toulouse, France
| | - A. Mocquet
- LPG Nantes, UMR6112, CNRS-Université de Nantes, 2 rue de la Houssinière, BP 92208, 44322 Nantes cedex 3, France
| | - M. P. Panning
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - R. C. Weber
- NASA Marshall Space Flight Center, 320 Sparkman Drive, Huntsville, AL 35805 USA
| | - A. Sylvestre-Baron
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - G. Pont
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - N. Verdier
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - L. Kerjean
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - L. J. Facto
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - V. Gharakanian
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - J. E. Feldman
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - T. L. Hoffman
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - D. B. Klein
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - K. Klein
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - N. P. Onufer
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - J. Paredes-Garcia
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - M. P. Petkov
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - J. R. Willis
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - S. E. Smrekar
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - M. Drilleau
- Institut de Physique du Globe de Paris-Sorbonne Paris Cité, Université Paris Diderot (UMR 7154 CNRS), Planetology et Space Science Team, 35 Rue Hélène Brion, Paris, 75013 France
| | - T. Gabsi
- Institut de Physique du Globe de Paris-Sorbonne Paris Cité, Université Paris Diderot (UMR 7154 CNRS), Planetology et Space Science Team, 35 Rue Hélène Brion, Paris, 75013 France
| | - T. Nebut
- Institut de Physique du Globe de Paris-Sorbonne Paris Cité, Université Paris Diderot (UMR 7154 CNRS), Planetology et Space Science Team, 35 Rue Hélène Brion, Paris, 75013 France
| | - O. Robert
- Institut de Physique du Globe de Paris-Sorbonne Paris Cité, Université Paris Diderot (UMR 7154 CNRS), Planetology et Space Science Team, 35 Rue Hélène Brion, Paris, 75013 France
| | - S. Tillier
- Institut de Physique du Globe de Paris-Sorbonne Paris Cité, Université Paris Diderot (UMR 7154 CNRS), Planetology et Space Science Team, 35 Rue Hélène Brion, Paris, 75013 France
| | - C. Moreau
- Institut de Physique du Globe de Paris-Sorbonne Paris Cité, Université Paris Diderot (UMR 7154 CNRS), Planetology et Space Science Team, 35 Rue Hélène Brion, Paris, 75013 France
| | - M. Parise
- Institut de Physique du Globe de Paris-Sorbonne Paris Cité, Université Paris Diderot (UMR 7154 CNRS), Planetology et Space Science Team, 35 Rue Hélène Brion, Paris, 75013 France
| | - G. Aveni
- Institut de Physique du Globe de Paris-Sorbonne Paris Cité, Université Paris Diderot (UMR 7154 CNRS), Planetology et Space Science Team, 35 Rue Hélène Brion, Paris, 75013 France
| | - S. Ben Charef
- Institut de Physique du Globe de Paris-Sorbonne Paris Cité, Université Paris Diderot (UMR 7154 CNRS), Planetology et Space Science Team, 35 Rue Hélène Brion, Paris, 75013 France
| | - Y. Bennour
- Institut de Physique du Globe de Paris-Sorbonne Paris Cité, Université Paris Diderot (UMR 7154 CNRS), Planetology et Space Science Team, 35 Rue Hélène Brion, Paris, 75013 France
| | - T. Camus
- Institut de Recherche en Astrophysique et Planétologie, UMR5277 CNRS - Université Toulouse III Paul Sabatier, 14, avenue Edouard Belin, 31400 Toulouse, France
| | - P. A. Dandonneau
- Institut de Physique du Globe de Paris-Sorbonne Paris Cité, Université Paris Diderot (UMR 7154 CNRS), Planetology et Space Science Team, 35 Rue Hélène Brion, Paris, 75013 France
| | - C. Desfoux
- Institut de Physique du Globe de Paris-Sorbonne Paris Cité, Université Paris Diderot (UMR 7154 CNRS), Planetology et Space Science Team, 35 Rue Hélène Brion, Paris, 75013 France
| | - B. Lecomte
- Institut de Physique du Globe de Paris-Sorbonne Paris Cité, Université Paris Diderot (UMR 7154 CNRS), Planetology et Space Science Team, 35 Rue Hélène Brion, Paris, 75013 France
- Present Address: Institut d’Astrophysique Spatiale, Université Paris-Sud, Bâtiment 121, 91405 Orsay Cedex, France
| | - O. Pot
- Institut de Physique du Globe de Paris-Sorbonne Paris Cité, Université Paris Diderot (UMR 7154 CNRS), Planetology et Space Science Team, 35 Rue Hélène Brion, Paris, 75013 France
- Present Address: Laboratoire de Mécanique et d’Acoustique, LMA - UMR 7031 AMU - CNRS - Centrale Marseille, 4 impasse Nikola Tesla, CS 40006, 13453 Marseille Cedex 13, France
| | - P. Revuz
- Institut de Physique du Globe de Paris-Sorbonne Paris Cité, Université Paris Diderot (UMR 7154 CNRS), Planetology et Space Science Team, 35 Rue Hélène Brion, Paris, 75013 France
| | - D. Mance
- Institut of Geophysics, ETHZ, Sonneggstrasse 5, 8092 Zurich, Switzerland
| | - J. tenPierick
- Institut of Geophysics, ETHZ, Sonneggstrasse 5, 8092 Zurich, Switzerland
| | - N. E. Bowles
- Atmospheric, Oceanic, & Planetary Physics, University of Oxford, Parks Road, Oxford, OX1 3PU UK
- Clarendon Laboratory, University of Oxford, Parks Road, Oxford, OX1 3PU UK
| | - C. Charalambous
- Department of Electrical and Electronic Engineering, Faculty of Engineering, Imperial College London, London, UK
| | - A. K. Delahunty
- Department of Electrical and Electronic Engineering, Faculty of Engineering, Imperial College London, London, UK
- Present Address: Advanced Technology and Research, Arup, 13 Fitzroy Street, London, W1T 4BQ UK
| | - J. Hurley
- Atmospheric, Oceanic, & Planetary Physics, University of Oxford, Parks Road, Oxford, OX1 3PU UK
- Clarendon Laboratory, University of Oxford, Parks Road, Oxford, OX1 3PU UK
- RAL Space, STFC Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot, OX11 0QX UK
| | - R. Irshad
- RAL Space, STFC Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot, OX11 0QX UK
| | - Huafeng Liu
- Department of Electrical and Electronic Engineering, Faculty of Engineering, Imperial College London, London, UK
- Present Address: Center for Gravitational Experiments, Huazhong University of Science and Technology, 1037 Luoyu Rd, Wuhan, 430074 P.R. China
| | - A. G. Mukherjee
- Department of Electrical and Electronic Engineering, Faculty of Engineering, Imperial College London, London, UK
| | | | - A. E. Stott
- Department of Electrical and Electronic Engineering, Faculty of Engineering, Imperial College London, London, UK
| | - J. Temple
- Atmospheric, Oceanic, & Planetary Physics, University of Oxford, Parks Road, Oxford, OX1 3PU UK
- Clarendon Laboratory, University of Oxford, Parks Road, Oxford, OX1 3PU UK
| | - T. Warren
- Atmospheric, Oceanic, & Planetary Physics, University of Oxford, Parks Road, Oxford, OX1 3PU UK
- Clarendon Laboratory, University of Oxford, Parks Road, Oxford, OX1 3PU UK
| | - M. Eberhardt
- Department of Planets and Comets, Max Planck Institute for Solar System Research, Göttingen, Germany
| | - A. Kramer
- Department of Planets and Comets, Max Planck Institute for Solar System Research, Göttingen, Germany
| | - W. Kühne
- Department of Planets and Comets, Max Planck Institute for Solar System Research, Göttingen, Germany
| | - E.-P. Miettinen
- Department of Planets and Comets, Max Planck Institute for Solar System Research, Göttingen, Germany
| | - M. Monecke
- Department of Planets and Comets, Max Planck Institute for Solar System Research, Göttingen, Germany
| | - C. Aicardi
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - M. André
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - J. Baroukh
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - A. Borrien
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - A. Bouisset
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - P. Boutte
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - K. Brethomé
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - C. Brysbaert
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - T. Carlier
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - M. Deleuze
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - J. M. Desmarres
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - D. Dilhan
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - C. Doucet
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - D. Faye
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - N. Faye-Refalo
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - R. Gonzalez
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - C. Imbert
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - C. Larigauderie
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - E. Locatelli
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - L. Luno
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - J.-R. Meyer
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - F. Mialhe
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - J. M. Mouret
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - M. Nonon
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - Y. Pahn
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - A. Paillet
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - P. Pasquier
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - G. Perez
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - R. Perez
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - L. Perrin
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - B. Pouilloux
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - A. Rosak
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - I. Savin de Larclause
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - J. Sicre
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - M. Sodki
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - N. Toulemont
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - B. Vella
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - C. Yana
- Centre National d’Etudes Spatiales, 18 av. Edouard Belin, 31401 Toulouse Cedex 9, France
| | - F. Alibay
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - O. M. Avalos
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - M. A. Balzer
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - P. Bhandari
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - E. Blanco
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - B. D. Bone
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - J. C. Bousman
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - P. Bruneau
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - F. J. Calef
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - R. J. Calvet
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - S. A. D’Agostino
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - G. de los Santos
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - R. G. Deen
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - R. W. Denise
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - J. Ervin
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - N. W. Ferraro
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - H. E. Gengl
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - F. Grinblat
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - D. Hernandez
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - M. Hetzel
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - M. E. Johnson
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - L. Khachikyan
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - J. Y. Lin
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - S. M. Madzunkov
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - S. L. Marshall
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - I. G. Mikellides
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - E. A. Miller
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - W. Raff
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - J. E. Singer
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - C. M. Sunday
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - J. F. Villalvazo
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - M. C. Wallace
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - D. Banfield
- Cornell Center for Astrophysics and Planetary Science, Cornell University, Ithaca, NY USA
| | | | - C. T. Russell
- Earth, Planetary and Space Sciences, University of California, Los Angeles, Los Angeles, USA
| | - A. Trebi-Ollennu
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - J. N. Maki
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - E. Beucler
- LPG Nantes, UMR6112, CNRS-Université de Nantes, 2 rue de la Houssinière, BP 92208, 44322 Nantes cedex 3, France
| | - M. Böse
- Swiss Seismological Service, ETHZ, Sonneggstrasse 5, 8092 Zurich, Switzerland
| | - C. Bonjour
- Institut of Geophysics, ETHZ, Sonneggstrasse 5, 8092 Zurich, Switzerland
| | - J. L. Berenguer
- Geoazur, University Cote d’Azur, 250 rue Einstein, 06560 Valbonne, France
| | - S. Ceylan
- Institut of Geophysics, ETHZ, Sonneggstrasse 5, 8092 Zurich, Switzerland
| | - J. Clinton
- Swiss Seismological Service, ETHZ, Sonneggstrasse 5, 8092 Zurich, Switzerland
| | - V. Conejero
- Département de Sismologie, Institut de Physique du Globe de Paris-Sorbonne Paris Cité, UMR 7154 CNRS - Université Paris Diderot, 1 Rue Jussieu, Paris Cedex, 75238 France
| | - I. Daubar
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - V. Dehant
- Royal Observatory of Belgium, 3 avenue Circulaire, 1180 Brussels, Belgium
| | - P. Delage
- Laboratoire Navier (CERMES), Ecole des Ponts ParisTech, Marne la Vallée, France
| | - F. Euchner
- Institut of Geophysics, ETHZ, Sonneggstrasse 5, 8092 Zurich, Switzerland
| | - I. Estève
- Institut de Minéralogie et de Physique des Matériaux et de Cosmochimie, Case courrier 115, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - L. Fayon
- Institut de Physique du Globe de Paris-Sorbonne Paris Cité, Université Paris Diderot (UMR 7154 CNRS), Planetology et Space Science Team, 35 Rue Hélène Brion, Paris, 75013 France
| | - L. Ferraioli
- Institut of Geophysics, ETHZ, Sonneggstrasse 5, 8092 Zurich, Switzerland
| | - C. L. Johnson
- University of British Columbia, Vancouver, BC Canada
- Planetary Science Institute, Tucson, AZ USA
| | - J. Gagnepain-Beyneix
- Institut de Physique du Globe de Paris-Sorbonne Paris Cité, Université Paris Diderot (UMR 7154 CNRS), Planetology et Space Science Team, 35 Rue Hélène Brion, Paris, 75013 France
| | - M. Golombek
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - A. Khan
- Institut of Geophysics, ETHZ, Sonneggstrasse 5, 8092 Zurich, Switzerland
| | - T. Kawamura
- Institut de Physique du Globe de Paris-Sorbonne Paris Cité, Université Paris Diderot (UMR 7154 CNRS), Planetology et Space Science Team, 35 Rue Hélène Brion, Paris, 75013 France
| | - B. Kenda
- Institut de Physique du Globe de Paris-Sorbonne Paris Cité, Université Paris Diderot (UMR 7154 CNRS), Planetology et Space Science Team, 35 Rue Hélène Brion, Paris, 75013 France
| | - P. Labrot
- Institut de Physique du Globe de Paris-Sorbonne Paris Cité, Université Paris Diderot (UMR 7154 CNRS), Planetology et Space Science Team, 35 Rue Hélène Brion, Paris, 75013 France
| | - N. Murdoch
- ISAE-SUPAERO, Toulouse University, 10 Avenue E. Belin, 31400 Toulouse, France
| | - C. Pardo
- Département de Sismologie, Institut de Physique du Globe de Paris-Sorbonne Paris Cité, UMR 7154 CNRS - Université Paris Diderot, 1 Rue Jussieu, Paris Cedex, 75238 France
| | - C. Perrin
- Institut de Physique du Globe de Paris-Sorbonne Paris Cité, Université Paris Diderot (UMR 7154 CNRS), Planetology et Space Science Team, 35 Rue Hélène Brion, Paris, 75013 France
| | - L. Pou
- ISAE-SUPAERO, Toulouse University, 10 Avenue E. Belin, 31400 Toulouse, France
| | - A. Sauron
- Institut of Geophysics, ETHZ, Sonneggstrasse 5, 8092 Zurich, Switzerland
| | - D. Savoie
- SYRTE, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, LNE, 61 avenue de l’Observatoire, 75014 Paris, France
| | - S. Stähler
- Institut of Geophysics, ETHZ, Sonneggstrasse 5, 8092 Zurich, Switzerland
| | - E. Stutzmann
- Département de Sismologie, Institut de Physique du Globe de Paris-Sorbonne Paris Cité, UMR 7154 CNRS - Université Paris Diderot, 1 Rue Jussieu, Paris Cedex, 75238 France
| | - N. A. Teanby
- School of Earth Sciences, University of Bristol, Wills Memorial Building, Queens Road, Bristol, BS8 1RJ UK
| | - J. Tromp
- Department of Geosciences, Princeton University, Guyot Hall, Princeton, NJ 08544 USA
| | - M. van Driel
- Institut of Geophysics, ETHZ, Sonneggstrasse 5, 8092 Zurich, Switzerland
| | - M. Wieczorek
- Observatoire de la Côte d’Azur, Boulevard de l’Observatoire, CS 34229, 06304 Nice Cedex 4, France
| | - R. Widmer-Schnidrig
- Black Forest Observatory, Karlsruhe Institute of Technology and Stuttgart University, Heubach 206, 77709 Wolfach, Germany
| | - J. Wookey
- School of Earth Sciences, University of Bristol, Wills Memorial Building, Queens Road, Bristol, BS8 1RJ UK
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Santos CB, Simões‐Carvalho M, Perez R, Vieira VTL, Antunes HS, Cavalcante DF, De‐Deus G, Silva EJNL. Torsional fatigue resistance of R‐Pilot and WaveOne Gold Glider NiTi glide path reciprocating systems. Int Endod J 2019; 52:874-879. [DOI: 10.1111/iej.13068] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 12/21/2018] [Indexed: 11/30/2022]
Affiliation(s)
- C. B. Santos
- Department of Endodontics Fluminense Federal University (UFF) NiteróiBrazil
| | - M. Simões‐Carvalho
- Department of Endodontics Fluminense Federal University (UFF) NiteróiBrazil
| | - R. Perez
- Department of Endodontics Fluminense Federal University (UFF) NiteróiBrazil
| | - V. T. L. Vieira
- Department of Endodontics School of Dentistry Grande Rio University (UNIGRANRIO) Rio de Janeiro Brazil
| | - H. S. Antunes
- Department of Endodontics School of Dentistry Grande Rio University (UNIGRANRIO) Rio de Janeiro Brazil
| | - D. F. Cavalcante
- Department of Endodontics Fluminense Federal University (UFF) NiteróiBrazil
| | - G. De‐Deus
- Department of Endodontics Fluminense Federal University (UFF) NiteróiBrazil
| | - E. J. N. L. Silva
- Department of Endodontics Fluminense Federal University (UFF) NiteróiBrazil
- Department of Endodontics School of Dentistry Grande Rio University (UNIGRANRIO) Rio de Janeiro Brazil
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Hyde J, Kiggundu R, Perez R. KNOWLEDGE, SKILLS AND INTERPERSONAL CAPABILITIES OF HIGHLY EFFECTIVE DIRECT CARE WORKERS. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.2994] [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: 11/15/2022] Open
Affiliation(s)
- J Hyde
- Gerontology Institute University of Massachusetts - Boston, Boston, Massachusetts, United States
| | - R Kiggundu
- Gerontology Institute, University of Massachusetts Boston, Boston, Massachusetts, USA
| | - R Perez
- Ivy Hall Senior Living, Boston, Massachusetts, USA
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24
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Gomila A, Carratalà J, Badia JM, Camprubí D, Piriz M, Shaw E, Diaz-Brito V, Espejo E, Nicolás C, Brugués M, Perez R, Lérida A, Castro A, Biondo S, Fraccalvieri D, Limón E, Gudiol F, Pujol M. Preoperative oral antibiotic prophylaxis reduces Pseudomonas aeruginosa surgical site infections after elective colorectal surgery: a multicenter prospective cohort study. BMC Infect Dis 2018; 18:507. [PMID: 30290773 PMCID: PMC6173907 DOI: 10.1186/s12879-018-3413-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [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: 11/20/2017] [Accepted: 09/25/2018] [Indexed: 12/15/2022] Open
Abstract
Background Healthcare-associated infections caused by Pseudomonas aeruginosa are associated with poor outcomes. However, the role of P. aeruginosa in surgical site infections after colorectal surgery has not been evaluated. The aim of this study was to determine the predictive factors and outcomes of surgical site infections caused by P. aeruginosa after colorectal surgery, with special emphasis on the role of preoperative oral antibiotic prophylaxis. Methods We conducted an observational, multicenter, prospective cohort study of all patients undergoing elective colorectal surgery at 10 Spanish hospitals (2011–2014). A logistic regression model was used to identify predictive factors for P. aeruginosa surgical site infections. Results Out of 3701 patients, 669 (18.1%) developed surgical site infections, and 62 (9.3%) of these were due to P. aeruginosa. The following factors were found to differentiate between P. aeruginosa surgical site infections and those caused by other microorganisms: American Society of Anesthesiologists’ score III–IV (67.7% vs 45.5%, p = 0.001, odds ratio (OR) 2.5, 95% confidence interval (95% CI) 1.44–4.39), National Nosocomial Infections Surveillance risk index 1–2 (74.2% vs 44.2%, p < 0.001, OR 3.6, 95% CI 2.01–6.56), duration of surgery ≥75thpercentile (61.3% vs 41.4%, p = 0.003, OR 2.2, 95% CI 1.31–3.83) and oral antibiotic prophylaxis (17.7% vs 33.6%, p = 0.01, OR 0.4, 95% CI 0.21–0.83). Patients with P. aeruginosa surgical site infections were administered antibiotic treatment for a longer duration (median 17 days [interquartile range (IQR) 10–24] vs 13d [IQR 8–20], p = 0.015, OR 1.1, 95% CI 1.00–1.12), had a higher treatment failure rate (30.6% vs 20.8%, p = 0.07, OR 1.7, 95% CI 0.96–2.99), and longer hospitalization (median 22 days [IQR 15–42] vs 19d [IQR 12–28], p = 0.02, OR 1.1, 95% CI 1.00–1.17) than those with surgical site infections due to other microorganisms. Independent predictive factors associated with P. aeruginosa surgical site infections were the National Nosocomial Infections Surveillance risk index 1–2 (OR 2.3, 95% CI 1.03–5.40) and the use of oral antibiotic prophylaxis (OR 0.4, 95% CI 0.23–0.90). Conclusions We observed that surgical site infections due to P. aeruginosa are associated with a higher National Nosocomial Infections Surveillance risk index, poor outcomes, and lack of preoperative oral antibiotic prophylaxis. These findings can aid in establishing specific preventive measures and appropriate empirical antibiotic treatment.
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Affiliation(s)
- A Gomila
- Department of Infectious Diseases, Hospital Universitari de Bellvitge, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Feixa Llarga s/n, 08907 L'Hospitalet de Llobregat, Barcelona, Spain. .,VINCat Program, Barcelona, Spain.
| | - J Carratalà
- Department of Infectious Diseases, Hospital Universitari de Bellvitge, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Feixa Llarga s/n, 08907 L'Hospitalet de Llobregat, Barcelona, Spain.,VINCat Program, Barcelona, Spain.,University of Barcelona, Barcelona, Spain
| | - J M Badia
- VINCat Program, Barcelona, Spain.,Department of General Surgery, Hospital General de Granollers, Barcelona, Spain.,Universitat Internacional de Catalunya, Barcelona, Spain
| | - D Camprubí
- Department of Infectious Diseases, Hospital Universitari de Bellvitge, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Feixa Llarga s/n, 08907 L'Hospitalet de Llobregat, Barcelona, Spain.,VINCat Program, Barcelona, Spain
| | - M Piriz
- VINCat Program, Barcelona, Spain.,Department of Infectious Diseases, Corporació Sanitària Parc Taulí, Barcelona, Spain
| | - E Shaw
- Department of Infectious Diseases, Hospital Universitari de Bellvitge, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Feixa Llarga s/n, 08907 L'Hospitalet de Llobregat, Barcelona, Spain.,VINCat Program, Barcelona, Spain
| | - V Diaz-Brito
- VINCat Program, Barcelona, Spain.,Department of Infectious Diseases, Parc Sanitari Sant Joan de Déu, Barcelona, Spain
| | - E Espejo
- VINCat Program, Barcelona, Spain.,Department of Infectious Diseases, Consorci Sanitari de Terrassa, Barcelona, Spain
| | - C Nicolás
- VINCat Program, Barcelona, Spain.,Department of Infectious Diseases, Hospital Universitari Mútua de Terrassa, Barcelona, Spain
| | - M Brugués
- VINCat Program, Barcelona, Spain.,Department of Internal Medicine, Consorci Sanitari de l'Anoia, Barcelona, Spain
| | - R Perez
- VINCat Program, Barcelona, Spain.,Department of Internal Medicine, Fundació Althaia, Barcelona, Spain
| | - A Lérida
- VINCat Program, Barcelona, Spain.,Department of Internal Medicine, Hospital de Viladecans, Barcelona, Spain
| | - A Castro
- VINCat Program, Barcelona, Spain.,Department of Internal Medicine, Hospital Universitari Sant Joan de Reus, Tarragona, Spain
| | - S Biondo
- VINCat Program, Barcelona, Spain.,Department of General Surgery, Hospital Universitari de Bellvitge, Barcelona, Spain
| | - D Fraccalvieri
- VINCat Program, Barcelona, Spain.,Department of General Surgery, Hospital Universitari de Bellvitge, Barcelona, Spain
| | - E Limón
- VINCat Program, Barcelona, Spain.,University of Barcelona, Barcelona, Spain
| | - F Gudiol
- VINCat Program, Barcelona, Spain.,University of Barcelona, Barcelona, Spain
| | - M Pujol
- Department of Infectious Diseases, Hospital Universitari de Bellvitge, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Feixa Llarga s/n, 08907 L'Hospitalet de Llobregat, Barcelona, Spain.,VINCat Program, Barcelona, Spain
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Van Spall H, Lee S, Averbuch T, Erbas Oz U, Perez R, Maingi M, Heffernan M, Mitoff P, Tjandrawidjaja M, Zia M, Simek K, Porepa L, Panju M, Ko D, Connolly S. A SIMPLE, POINT-OF-CARE RISK PREDICTION TOOL TO PREDICT 30-DAY OUTCOMES FOLLOWING HOSPITALIZATION FOR HEART FAILURE. Can J Cardiol 2018. [DOI: 10.1016/j.cjca.2018.07.134] [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: 10/28/2022] Open
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26
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Van Spall HGC, Lee SF, Averbuch T, Erbas Oz U, Perez R, Maingi M, Heffernan M, Mitoff P, Tjandrawidjaja M, Zia M, Simek K, Porepa L, Panju M, Ko D, Connolly S. P6544All you need is LE: utility of an abbreviated LACE score in predicting 30-day outcomes among patients hospitalized for Heart Failure (HF). Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6544] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- H G C Van Spall
- Population Health Research Institute, McMaster University, Hamilton, Canada
| | - S F Lee
- Population Health Research Institute, Hamilton, Canada
| | | | - U Erbas Oz
- Institute for Clinical Evaluative Sciences, Hamilton, Canada
| | - R Perez
- Institute for Clinical Evaluative Sciences, Hamilton, Canada
| | - M Maingi
- Trillium Health Partners, Cardiac Health Program, Mississauga, Canada
| | - M Heffernan
- Halton Health Care Services, Department of Medicine, Oakville, Canada
| | - P Mitoff
- St. Joseph's Health Center, Department of Medicine, Toronto, Canada
| | - M Tjandrawidjaja
- William Osler Health System, Department of Medicine, Brampton, Canada
| | - M Zia
- University of Toronto, Department of Medicine, Toronto, Canada
| | - K Simek
- Population Health Research Institute, Hamilton, Canada
| | - L Porepa
- Southlake Regional Health Centre, Department of Medicine, Newmarket, Canada
| | - M Panju
- McMaster University, Department of Medicine, Hamilton, Canada
| | - D Ko
- University of Toronto, Department of Medicine, Institute for Clinical Evaluative Sciences, Toronto, Canada
| | - S Connolly
- Population Health Research Institute, McMaster University, Hamilton, Canada
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Shaw E, Gomila A, Piriz M, Perez R, Cuquet J, Vazquez A, Badia JM, Lérida A, Fraccalvieri D, Marron A, Freixas N, Castro A, Cruz A, Limón E, Gudiol F, Biondo S, Carratalà J, Pujol M. Multistate modelling to estimate excess length of stay and risk of death associated with organ/space infection after elective colorectal surgery. J Hosp Infect 2018; 100:400-405. [PMID: 30125586 DOI: 10.1016/j.jhin.2018.08.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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: 06/20/2018] [Accepted: 08/10/2018] [Indexed: 01/03/2023]
Abstract
BACKGROUND Accounting for time-dependency and competing events are strongly recommended to estimate excess length of stay (LOS) and risk of death associated with healthcare-associated infections. AIM To assess the effect of organ/space (OS) surgical site infection (SSI) on excess LOS and in-hospital mortality in patients undergoing elective colorectal surgery (ECS). METHODS A multicentre prospective adult cohort undergoing ECS, January 2012 to December 2014, at 10 Spanish hospitals was used. SSI was considered the time-varying exposure and defined as incisional (superficial and deep) or OS. Discharge alive and death were the study endpoints. The mean excess LOS was estimated using a multistate model which provided a weighted average based on the states patients passed through. Multivariate Cox regression models were used to assess the effect of OS-SSI on risk of discharge alive or in-hospital mortality. FINDINGS Of 2778 patients, 343 (12.3%) developed SSI: 194 (7%) OS-SSI and 149 (5.3%) incisional SSI. Compared to incisional SSI or no infection, OS-SSI prolonged LOS by 4.2 days (95% confidence interval (CI): 4.1-4.3) and 9 days (8.9-9.1), respectively, reduced the risk of discharge alive (adjusted hazard ratio (aHR): 0.36 (95% CI: 0.28-0.47) and aHR: 0.17 (0.14-0.21), respectively), and increased the risk of in-hospital mortality (aHR: 8.02 (1.03-62.9) and aHR: 10.7 (3.7-30.9), respectively). CONCLUSION OS-SSI substantially extended LOS and increased risk of death in patients undergoing ECS. These results reinforce OS-SSI as the SSI with the highest health burden in ECS.
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Affiliation(s)
- E Shaw
- Department of Infectious Diseases, Hospital Universitari de Bellvitge, Barcelona, Spain; Epidemiologia de les infeccions bacterianes, Patologia Infecciosa i Transplantament, Institut d'Investigació Biomèdica de Bellvitge, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain; VINCat Programme, Barcelona, Spain.
| | - A Gomila
- Department of Infectious Diseases, Hospital Universitari de Bellvitge, Barcelona, Spain; Epidemiologia de les infeccions bacterianes, Patologia Infecciosa i Transplantament, Institut d'Investigació Biomèdica de Bellvitge, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain; VINCat Programme, Barcelona, Spain
| | - M Piriz
- VINCat Programme, Barcelona, Spain; Infection Control, Corporació Sanitària Parc Taulí, Barcelona, Spain
| | - R Perez
- VINCat Programme, Barcelona, Spain; Department of Internal Medicine, Fundació Althaia de Manresa, Barcelona, Spain
| | - J Cuquet
- VINCat Programme, Barcelona, Spain; Department of Internal Medicine, Hospital General de Granollers, Barcelona, Spain
| | - A Vazquez
- Servei d'Estadística Aplicada, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - J M Badia
- VINCat Programme, Barcelona, Spain; Department of General Surgery, Hospital General de Granollers, Barcelona, Spain; Universitat Internacional de Catalunya, Barcelona, Spain
| | - A Lérida
- VINCat Programme, Barcelona, Spain; Department of Internal Medicine, Hospital de Viladecans, Barcelona, Spain
| | - D Fraccalvieri
- VINCat Programme, Barcelona, Spain; Department of General Surgery, Hospital Universitari de Bellvitge, Barcelona, Spain
| | - A Marron
- VINCat Programme, Barcelona, Spain; Department of Internal Medicine, Consorci Sanitari de l'Anoia, Barcelona, Spain
| | - N Freixas
- VINCat Programme, Barcelona, Spain; Department of Infectious Diseases, Hospital Universitari Mútua de Terrassa, Barcelona, Spain
| | - A Castro
- VINCat Programme, Barcelona, Spain; Department of Internal Medicine, Hospital Universitari Sant Joan de Reus, Tarragona, Spain
| | - A Cruz
- VINCat Programme, Barcelona, Spain; Department of Infectious Diseases, Parc Sanitari Sant Joan de Déu de Sant Boi, Barcelona, Spain
| | - E Limón
- VINCat Programme, Barcelona, Spain; University of Barcelona, Barcelona, Spain
| | - F Gudiol
- VINCat Programme, Barcelona, Spain; University of Barcelona, Barcelona, Spain
| | - S Biondo
- VINCat Programme, Barcelona, Spain; Department of General Surgery, Hospital Universitari de Bellvitge, Barcelona, Spain
| | - J Carratalà
- Department of Infectious Diseases, Hospital Universitari de Bellvitge, Barcelona, Spain; Epidemiologia de les infeccions bacterianes, Patologia Infecciosa i Transplantament, Institut d'Investigació Biomèdica de Bellvitge, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain; VINCat Programme, Barcelona, Spain; University of Barcelona, Barcelona, Spain
| | - M Pujol
- Department of Infectious Diseases, Hospital Universitari de Bellvitge, Barcelona, Spain; Epidemiologia de les infeccions bacterianes, Patologia Infecciosa i Transplantament, Institut d'Investigació Biomèdica de Bellvitge, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain; VINCat Programme, Barcelona, Spain
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Alessandrini R, Calfunao D, Perez R, Torresin J, Bouza M. Point of care Testing for HCV and HBV infection. First experience in Patagonia, Argentina. Int J Infect Dis 2018. [DOI: 10.1016/j.ijid.2018.04.3881] [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: 10/28/2022] Open
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Van Spall HGC, Lee SF, Averbuch T, Erbas Oz U, Perez R, Maingi M, Heffernan M, Mitoff PR, Tjandrawidjaja M, Zia MI, Simek KD, Porepa L, Panju M, Ko DT, Connolly SJ. 4940Predicting risk at the point of care: NT-proBNP improves performance of the LACE index among patients hospitalized for Heart Failure (HF). Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.4940] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- H G C Van Spall
- Population Health Research Institute, McMaster University, Hamilton, Canada
| | - S F Lee
- Population Health Research Institute, Hamilton, Canada
| | | | - U Erbas Oz
- Institute for Clinical Evaluative Sciences, Hamilton, Canada
| | - R Perez
- Institute for Clinical Evaluative Sciences, Hamilton, Canada
| | - M Maingi
- Trillium Health Partners, Cardiac Health Program, Mississauga, Canada
| | - M Heffernan
- Halton Health Care Services, Department of Medicine, Oakville, Canada
| | - P R Mitoff
- St. Joseph's Health Centre, Department of Medicine, Toronto, Canada
| | - M Tjandrawidjaja
- William Osler Health System, Department of Medicine, Brampton, Canada
| | - M I Zia
- University of Toronto, Department of Medicine, Toronto, Canada
| | - K D Simek
- Population Health Research Institute, Hamilton, Canada
| | - L Porepa
- Southlake Regional Health Centre, Department of Medicine, Newmarket, Canada
| | - M Panju
- McMaster University, Department of Medicine, Hamilton, Canada
| | - D T Ko
- University of Toronto, Department of Medicine, Institute for Clinical Evaluative Sciences, Toronto, Canada
| | - S J Connolly
- Population Health Research Institute, McMaster University, Hamilton, Canada
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Martin-Malo A, Mallol J, Castillo D, Barrio V, Burdiel L, Perez R, Aljama P. Factors Affecting β2-Microglobulin Plasma Concentration during Hemodialysis. Int J Artif Organs 2018. [DOI: 10.1177/039139888901200805] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We studied ten patients on hemodialysis (HD) treated in sequence with cuprophan (CU), ethylenevinylalcohol (EVAL), polyacrylonitrile (A-69) and polysulphone (PSP) membrane dialyzers. ß2-microglobulin (ß2m) was measured by radioimmunoassay in plasma and dialysate samples. Plasma concentrations were corrected for changes in extracellular volume (ECV). We also studied adsorption in vitro by incubating the above membranes with I-125-labelled ß2m. There were no changes in ß2m plasma concentration after HD with CU dialyzers, but a significant decrease was observed with the other membranes tested. Filtration of ß2m across the dialyzer was absent with CU and minimal with EVAL. However, large amounts were recovered from dialysate with the high-permeability dialyzers, AN-69 and PSP. In vitro studies showed that maximal adsorption capacity was obtained with AN-69 (73%) compared to 9% with CU, 4% with EVAL and 7% with PSP. In summary, ß2m clearance with PSP is achieved through greater removal of this protein by mass transport across the membrane. The mechanism by which ß2m is removed from blood during AN-69 dialysis seems to include both adsorption to and filtration by the membrane itself.
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Affiliation(s)
- A. Martin-Malo
- Departments of Nephrology, University of Cordoba - Spain
| | - J. Mallol
- Nuclear Medicine, Reina Sofia Regional Hospital, University of Cordoba - Spain
| | - D. Castillo
- Departments of Nephrology, University of Cordoba - Spain
| | - V. Barrio
- Departments of Nephrology, University of Cordoba - Spain
| | - L.G. Burdiel
- Departments of Nephrology, University of Cordoba - Spain
| | - R. Perez
- Departments of Nephrology, University of Cordoba - Spain
| | - P. Aljama
- Departments of Nephrology, University of Cordoba - Spain
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Perez R. SP-0229: TME, TEM or Wait and See? The surgeon’s perspective. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)30539-5] [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: 10/14/2022]
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Verrijssen A, Bellezzo M, Habr-Gama A, Perez R, Guillem J, Bujko K, Houben R, Verhaegen F, Berbee M, Van Limbergen E. EP-1472: Microscopic extension of residual rectal tumor mass post-neoadjuvant chemoradiation: a meta-analysis. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31781-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Durante F, Fiske ST, Kervyn N, Cuddy AJC, Akande A(D, Adetoun BE, Adewuyi MF, Tserere MM, Ramiah AA, Mastor KA, Barlow FK, Bonn G, Tafarodi RW, Bosak J, Cairns E, Doherty C, Capozza D, Chandran A, Chryssochoou X, Iatridis T, Contreras JM, Costa-Lopes R, González R, Lewis JI, Tushabe G, Leyens JP, Mayorga R, Rouhana NN, Castro VS, Perez R, Rodríguez-Bailón R, Moya M, Marente EM, Gálvez MP, Sibley CG, Asbrock F, Storari CC. Nations’ income inequality predicts ambivalence in stereotype content. Social Cognition 2018. [DOI: 10.4324/9781315187280-10] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Gomila A, Carratalà J, Biondo S, Badia JM, Fraccalvieri D, Shaw E, Diaz-Brito V, Pagespetit L, Freixas N, Brugués M, Mora L, Perez R, Sanz C, Arroyo N, Iftimie S, Limón E, Gudiol F, Pujol M. Predictive factors for early- and late-onset surgical site infections in patients undergoing elective colorectal surgery. A multicentre, prospective, cohort study. J Hosp Infect 2017; 99:24-30. [PMID: 29288776 DOI: 10.1016/j.jhin.2017.12.017] [Citation(s) in RCA: 11] [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] [Received: 11/13/2017] [Accepted: 12/20/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND Surgical site infections (SSIs) are the leading cause of healthcare-associated infections in acute care hospitals in Europe. However, the risk factors for the development of early-onset (EO) and late-onset (LO) SSI have not been elucidated. AIM This study investigated the predictive factors for EO-SSI and LO-SSI in a large cohort of patients undergoing colorectal surgery. METHODS We prospectively followed-up adult patients undergoing elective colorectal surgery in 10 hospitals (2011-2014). Patients were divided into three groups: EO-SSI, LO-SSI, or no infection (no-SSI). The cut-off defining EO-SSI and LO-SSI was seven days (median time to SSI development). Different predictive factors for EO-SSI and LO-SSI were analysed, comparing each group with the no-SSI patients. FINDINGS Of 3701 patients, 320 (8.6%) and 349 (9.4%) developed EO-SSI and LO-SSI, respectively. The rest had no-SSI. Patients with EO-SSI were mostly males, had colon surgery and developed organ-space SSI whereas LO-SSI patients frequently received chemotherapy or radiotherapy and had incisional SSI. Male sex (odds ratio (OR): 1.92; P < 0.001), American Society of Anesthesiologists' physical status >2 (OR: 1.51; P = 0.01), administration of mechanical bowel preparation (OR: 0.7; P = 0.03) and stoma creation (OR: 1.95; P < 0.001) predicted EO-SSI whereas rectal surgery (OR: 1.43; P = 0.03), prolonged surgery (OR: 1.4; P = 0.03) and previous chemotherapy (OR: 1.8; P = 0.03) predicted LO-SSI. CONCLUSION We found distinctive predictive factors for the development of SSI before and after seven days following elective colorectal surgery. These factors could help establish specific preventive measures in each group.
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Affiliation(s)
- A Gomila
- Department of Infectious Diseases, Hospital Universitari de Bellvitge, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Spain; VINCat Program, Spain.
| | - J Carratalà
- Department of Infectious Diseases, Hospital Universitari de Bellvitge, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Spain; VINCat Program, Spain; University of Barcelona, Spain
| | - S Biondo
- VINCat Program, Spain; University of Barcelona, Spain; Department of General Surgery, Hospital Universitari de Bellvitge, Spain
| | - J M Badia
- VINCat Program, Spain; Department of General Surgery, Hospital General de Granollers, Spain; Universitat Internacional de Catalunya, Spain
| | - D Fraccalvieri
- VINCat Program, Spain; Department of General Surgery, Hospital Universitari de Bellvitge, Spain
| | - E Shaw
- Department of Infectious Diseases, Hospital Universitari de Bellvitge, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Spain; VINCat Program, Spain
| | - V Diaz-Brito
- VINCat Program, Spain; Department of Infectious Diseases, Parc Sanitari Sant Joan de Déu de Sant Boi, Spain
| | - L Pagespetit
- VINCat Program, Spain; Department of Infectious Diseases, Consorci Sanitari de Terrassa, Spain
| | - N Freixas
- VINCat Program, Spain; Department of Infectious Diseases, Hospital Universitari Mútua de Terrassa, Spain
| | - M Brugués
- VINCat Program, Spain; Department of Internal Medicine, Consorci Sanitari de l'Anoia, Spain
| | - L Mora
- VINCat Program, Spain; Department of General Surgery, Corporació Sanitària Parc Taulí, Spain
| | - R Perez
- VINCat Program, Spain; Department of Internal Medicine, Fundació Althaia, Spain
| | - C Sanz
- VINCat Program, Spain; Department of Internal Medicine, Hospital de Viladecans, Spain
| | - N Arroyo
- VINCat Program, Spain; Department of General Surgery, Hospital General de Granollers, Spain
| | - S Iftimie
- VINCat Program, Spain; Department of Internal Medicine, Hospital Universitari Sant Joan de Reus, Spain
| | - E Limón
- VINCat Program, Spain; University of Barcelona, Spain
| | - F Gudiol
- VINCat Program, Spain; University of Barcelona, Spain
| | - M Pujol
- Department of Infectious Diseases, Hospital Universitari de Bellvitge, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Spain; VINCat Program, Spain
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Molinero L, Albanell J, Koeppen H, Martinez de Dueñas E, Halligan D, Guerrero A, Chacón López-Muñiz J, Perez R, Antolin S, Blancas I, Muñoz M, Oltra A, LÓpez de Ceballos M, Sánchez-Aragó M, Caballero R, Carrasco E, González-Angulo A, Lluch A, Mittendorff E, Rojo F. Analysis of stroma and immune-related gene expression patterns during breast cancer (BC) progression. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx391.006] [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: 11/13/2022] Open
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De-Deus G, Belladonna FG, Silva EJNL, Souza EM, Carvalhal JCA, Perez R, Lopes RT, Versiani MA. Micro-CT assessment of dentinal micro-cracks after root canal filling procedures. Int Endod J 2016; 50:895-901. [PMID: 27689844 DOI: 10.1111/iej.12706] [Citation(s) in RCA: 21] [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: 08/02/2015] [Accepted: 09/27/2016] [Indexed: 11/30/2022]
Abstract
AIM To evaluate the frequency of dentinal micro-cracks after root canal filling procedures with GuttaCore (GC), cold lateral compaction (CLC) and warm vertical compaction (WVC) techniques in mandibular molars using micro-computed tomographic analysis. METHODOLOGY Thirty mesial roots of mandibular molars, with a type II Vertucci's canal configuration, were prepared to working length with a Reciproc R40 instrument and randomly assigned to one of the three experimental groups (n = 10), according to the technique used for root filling: GC, CLC or WVC. The GC group was filled with a size 40 GC obturator, whilst CLC and WVC groups used conventional gutta-percha cones. AH Plus sealer was used in all groups. The specimens were scanned at an isotropic resolution of 14.25 μm before and after root canal preparation and after root filling. Then, all pre- and postoperative cross-sectional images of the roots (n = 41 660) were screened to identify the presence of dentinal defects. RESULTS Overall, 30.75% (n = 12 810) of the pre- + post-filling images displayed dentinal defects. In the GC, CLC and WVC groups, dentinal micro-cracks were observed in 18.68% (n = 2510), 15.99% (n = 2389) and 11.34% (n = 1506) of the cross-sectional images, respectively. All micro-cracks identified in the post-filling scans were also observed in the corresponding post-preparation images. CONCLUSION Root fillings in all techniques did not induce the development of new dentinal micro-cracks.
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Affiliation(s)
- G De-Deus
- Department of Endodontics, School of Dentistry, Grande Rio University (UNIGRANRIO), Rio de Janeiro, RJ, Brazil
| | - F G Belladonna
- Department of Endodontics, Fluminense Federal University (UFF), Niterói, RJ, Brazil
| | - E J N L Silva
- Department of Endodontics, School of Dentistry, Grande Rio University (UNIGRANRIO), Rio de Janeiro, RJ, Brazil
| | - E M Souza
- Department of Dentistry II, Federal University of Maranhão (UFMA), São Luís, MA, Brazil
| | - J C A Carvalhal
- Department of Endodontics, School of Dentistry, Grande Rio University (UNIGRANRIO), Rio de Janeiro, RJ, Brazil
| | - R Perez
- Department of Endodontics, Fluminense Federal University (UFF), Niterói, RJ, Brazil
| | - R T Lopes
- Nuclear Engineering Program, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
| | - M A Versiani
- Department of Restorative Dentistry, Dental School of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto, SP, Brazil
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Rosenberg J, Heath E, Perez R, Merchan J, Lang J, Ruether D, Petrylak D, Sangha R, Smith D, Sridhar S, Gartner E, Vincent M, Chu R, Anand B, Donate F, Melhem-Bertrandt A, Zhang J. Interim analysis of a phase I dose escalation trial of ASG-22CE (ASG-22ME; enfortumab vedotin), an antibody drug conjugate (ADC), in patients (Pts) with metastatic urothelial cancer (mUC). Ann Oncol 2016. [DOI: 10.1093/annonc/mdw373.16] [Citation(s) in RCA: 4] [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: 11/12/2022] Open
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Evans J, Bhoday J, Sizer B, Tekkis P, Swift R, Perez R, Tait D, Brown G. Results of a prospective randomised control 6 vs 12 trial: Is greater tumour downstaging observed on post treatment MRI if surgery is delayed to 12-weeks versus 6-weeks after completion of neoadjuvant chemoradiotherapy? Ann Oncol 2016. [DOI: 10.1093/annonc/mdw370.01] [Citation(s) in RCA: 28] [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: 11/12/2022] Open
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Yeo TK, Kintner J, Armand R, Perez R, Lewis LD. Sublethal concentrations of gemcitabine (2′,2′-difluorodeoxycytidine) alter mitochondrial ultrastructure and function without reducing mitochondrial DNA content in BxPC-3 human pancreatic carcinoma cells. Hum Exp Toxicol 2016; 26:911-21. [DOI: 10.1177/0960327107086513] [Citation(s) in RCA: 6] [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] [Indexed: 11/16/2022]
Abstract
2′,2′-Difluorodeoxycytidine (gemcitabine), a pyrimidine nucleoside analog, is used therapeutically in the treatment of pancreatic, non-small cell lung, and breast cancer. The cytotoxic effect of gemcitabine is thought to be due to masked chain termination after the triphosphorylated anabolite of the drug is incorporated into nascent DNA strands. We tested the hypothesis that sublethal concentrations of gemcitabine inhibit DNA polymerase γ and reduce mitochondrial DNA content in BxPC-3 and MOLT-4 cell lines, and we used 2′,3′-dideoxycytidine, a known inhibitor of DNA polymerase γ as a positive control. The 6-day BxPC-3 cell growth IC50 for gemcitabine and 2′,3′-dideoxycytidine was 0.003 μM (SD ± 0.0005) and 14.5 μM (SD ± 4.7), respectively, and in MOLT-4 cells was 0.002 μM (SD ± 0.001) and 0.86 μM (SD ± 0.23), respectively. These drug concentrations were anti-proliferative but non-cytotocidal. Electron photomicrographic studies showed deranged mitochondrial cristae patterns in BxPC-3 cells treated with either gemcitabine or 2′,3′-dideoxycytidine for 6 days. Mitochondrial oxidative phosphorylation dysfunction was observed as reflected by increased lactate concentration in the media of cells exposed to gemcitabine, but to a much greater extent in cells exposed to 2′,3′-dideoxycytidine. PCR analysis showed that gemcitabine did not reduce mitochondrial DNA content in either BxPC-3 or MOLT-4 cells, but 2′,3′-dideoxycytidine did. The effect of gemcitabine on mitochondrial ultrastructure and function did not concomitantly yield a reduction in mitochondrial DNA content. Therefore, the molecular target(s) by which gemcitabine and 2′,3′-dideoxycytidine produce mitochondrial abnormalities in these cells appear to be different.
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Affiliation(s)
- TK Yeo
- Section of Clinical Pharmacology, Department of Medicine, Dartmouth Medical School and Dartmouth Hitchcock Medical Center, Lebanon, NH 03756, USA
| | - J Kintner
- Department of Pharmacology and Toxicology, Dartmouth Medical School and Dartmouth, Lebanon, NH 03756, USA
| | - R Armand
- Section of Clinical Pharmacology, Department of Medicine, Dartmouth Medical School and Dartmouth Hitchcock Medical Center, Lebanon, NH 03756, USA
| | - R Perez
- Department of Pharmacology and Toxicology, Dartmouth Medical School and Dartmouth, Lebanon, NH 03756, USA; Section of Hematology/Oncology, Department of Medicine, Dartmouth Medical School and Dartmouth Hitchcock Medical Center, Lebanon, NH 03756, USA
| | - LD Lewis
- Section of Clinical Pharmacology, Department of Medicine, Dartmouth Medical School and Dartmouth Hitchcock Medical Center, Lebanon, NH 03756, USA; Department of Pharmacology and Toxicology, Dartmouth Medical School and Dartmouth, Lebanon, NH 03756, USA
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40
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Vincentelli J, Braguer D, Guillet P, Delorme J, Carles G, Perez R, Duffaud F, Nicoara A, Drancourt M, Favre R, Crevat A. Formulation of a flush solution of heparin, vancomycin, and colistin for implantable access systems in oncology. J Oncol Pharm Pract 2016. [DOI: 10.1177/107815529700300103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Introduction: Because of the increased use of im plantable access systems, the incidence of blood stream and catheter infections associated with these systems has concomitantly increased. Classically, he parin-lock flush solutions were used to prevent thrombosis; more recently, vancomycin was added to the solution to prevent infections caused by Gram- positive bacteria, particularly coagulase-negative Staphylococci. Disorders due to Gram-negative organ isms have now appeared in oncologic patients. We therefore tested the addition of colistin to heparin- vancomycin solutions. Colistin was chosen for its good activity against Gram-negative bacteria (98% susceptibility in our hospital), its good tolerance due to low systemic passage, and its low cost. Methods: We developed formulations contain ing heparin (100 IU/mL) and various concentrations of vancomycin (10-500 μg/mL) and colistin (10-100 μg/mL) in 0.9% NaCl. Each sterile solution was tested for physical and chemical compatibility (spectropho tometry, nuclear magnetic resonance, and pH mea surements) and its antibacterial activity (against ox acillin-resistant Staphylococcus aureus, Enterococcus faecium, Klebsiella pneumoniae exhibiting broad- spectrum betalactamase (BSBL), imipenem-resistant Pseudomonas aeruginosa) for 2 months at 4°C and at room temperature. Results: The most suitable combination of drugs is heparin (100 IU/mL), vancomycin (100 μg/mL), and colistin (100 μg/mL). This flush solution main tains activity when stored at 4°C for up to 1 month. Conclusions: We feel that the combination of heparin, vancomycin, and colistin can be used as a flush solution for indwelling catheters.
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Affiliation(s)
| | | | | | | | | | - R. Perez
- Laboratory of Bacteriology CHU Timone, Marseille, France
| | | | | | - M. Drancourt
- Laboratory of Bacteriology CHU Timone, Marseille, France
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Wang CY, Deng JY, Cai XW, Fu XL, Li Y, Zhou XY, Wu XH, Hu XC, Fan M, Xiang JQ, Zhang YW, Chen HQ, Perez R, Jiang GL, Zhao KL. High EGFR and low p-Akt expression is associated with better outcome after nimotuzumab-containing treatment in esophageal cancer patients: preliminary clinical result and testable hypothesis. Oncotarget 2016; 6:18674-82. [PMID: 26124180 PMCID: PMC4621919 DOI: 10.18632/oncotarget.4367] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [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: 04/13/2015] [Accepted: 05/31/2015] [Indexed: 12/11/2022] Open
Abstract
The epidermal growth factor receptor (EGFR) is widely overexpressed in esophageal squamous cell carcinoma (ESCC) and it results is associated with a poor prognosis. Identifying the subgroup of ESCC patients who are sensitive to EGFR-targeted therapy is a key point to facilitate its medical use. We retrospectively analyzed 32 ESCC patients treated with the combination of nimotuzumab (h-R3) and radiotherapy (RT) or chemoradiotherapy (CRT). Expression of EGFR and phosphorylated proteins associated with EGFR signaling pathway, i.e. p-Akt and p-Erk, were assessed with immunohistochemistry (IHC) for all patients. Correlations between these proteins' expression levels and overall survival (OS) were assessed. High expression of EGFR, p-Akt and p-Erk was detected in 53.1% (17/32), 54.8% (17/31) and 59.4% (19/32) of tumors respectively. No significant differences in OS were found between high EGFR, p-Akt and p-Erk expression groups and their respective counterparts. Of note, significantly better overall survival was observed in patients with coexistence of high EGFR expression and low p-Akt expression (p = 0.030). Our data allowed us to put forward a hypothesis that high EGFR and low p-Akt expression may predict a clinical benefit of EGFR antagonists such as nimotuzumab combined with RT or CRT. This can be discussed in the terms of oncogene addiction and synthetic lethality concepts. This hypothesis can be further tested in larger groups of patients.
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Affiliation(s)
- Chun-yu Wang
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jia-ying Deng
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xu-wei Cai
- Department of Radiation Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xiao-long Fu
- Department of Radiation Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yuan Li
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Xiao-yan Zhou
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Xiang-hua Wu
- Department of Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Xi-chun Hu
- Department of Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Min Fan
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jia-qing Xiang
- Department of Thoracic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Ya-wei Zhang
- Department of Thoracic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Hai-quan Chen
- Department of Thoracic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
| | | | - Guo-liang Jiang
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Kuai-le Zhao
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
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Perez R, Neves AA, Belladonna FG, Silva EJNL, Souza EM, Fidel S, Versiani MA, Lima I, Carvalho C, De-Deus G. Impact of needle insertion depth on the removal of hard-tissue debris. Int Endod J 2016; 50:560-568. [DOI: 10.1111/iej.12648] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Accepted: 04/07/2016] [Indexed: 12/01/2022]
Affiliation(s)
- R. Perez
- Department of Dental Clinics; Rio de Janeiro State University; Rio de Janeiro Brazil
| | - A. A. Neves
- Department of Pediatric Dentistry and Orthodontics; Federal University of Rio de Janeiro; Rio de Janeiro Brazil
| | - F. G. Belladonna
- Department of Endodontics; Fluminense Federal University; Niterói Rio de Janeiro Brazil
| | - E. J. N. L. Silva
- Department of Endodontics; Grande Rio University; Duque de Caxias Rio de Janeiro Brazil
| | - E. M. Souza
- Department of Dentistry II; Federal University of Maranhão; São Luís Maranhão Brazil
| | - S. Fidel
- Department of Dental Clinics; Rio de Janeiro State University; Rio de Janeiro Brazil
| | - M. A. Versiani
- Department of Restorative Dentistry; Dental School of Ribeirão Preto; University of São Paulo; São Paulo Brazil
| | - I. Lima
- Nuclear Engineering Program; Federal University of Rio de Janeiro; Rio de Janeiro Brazil
| | - C. Carvalho
- Department of Endodontics; Grande Rio University; Duque de Caxias Rio de Janeiro Brazil
| | - G. De-Deus
- Department of Endodontics; Grande Rio University; Duque de Caxias Rio de Janeiro Brazil
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Silva EJ, Perez R, Valentim RM, Belladonna FG, De-Deus GA, Lima IC, Neves AA. Dissolution, dislocation and dimensional changes of endodontic sealers after a solubility challenge: a micro-CT approach. Int Endod J 2016; 50:407-414. [PMID: 27000665 DOI: 10.1111/iej.12636] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [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: 01/07/2016] [Accepted: 03/17/2016] [Indexed: 12/01/2022]
Abstract
AIM To evaluate, using a novel micro-CT approach, the solubility and dimensional changes of an MTA-based sealer inside the root canal system after a solubility challenge. The MTA-based material (MTA Fillapex) was compared to a gold standard epoxy-based endodontic sealer (AH Plus). METHODOLOGY Ten human mandibular premolars with a single canal were divided randomly into two groups (n = 5) according to the sealer used. The canals were instrumented using the Reciproc System (VDW) with a R40 file and filled with R40 gutta-percha cones and one of the sealers. The filled canals were immediately scanned in a micro-CT, and after that, the teeth were immersed in 20 mL phosphate-buffered saline (PBS) at 37 °C for 7 days, when they were removed and rescanned. Final image stacks were registered against the initial stacks and the numerical difference between the initial and final volume of the filling material was obtained. Calculations were performed to identify dimensional changes of the filling material. All image stacks were 3D rendered to disclose areas of dislocation of the filling material inside or outside the root canal. The Shapiro-Wilk's test revealed that data were normally distributed; thus, the Student's t-test was used to detect statistically significant changes, assuming a 5% α-error. RESULTS No significant changes were seen for the percentage volume of material lost after the solubility challenge for both AH Plus and MTA Fillapex groups (1.44% and 1.16%, respectively). A significant difference was, however, found for the volume of filling material which revealed dimensional changes after the solubility test (6.68% for MTA Fillapex and 1.09% for AH Plus). In fact, observation of 3D models disclosed that MTA Fillapex was associated with material extrusion through the foramen in all but one sample. In AH Plus filled samples, no material extrusion was detected. CONCLUSIONS Although the solubility of both sealers was similar using this novel micro-CT approach, MTA Fillapex was associated with significant dimensional changes related to material extrusion through the apex after PBS storage compared to AH Plus.
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Affiliation(s)
- E J Silva
- Escola de Ciências da Saúde, Universidade do Grande Rio, Rio de Janeiro, Brazil
| | - R Perez
- Corpo de Bombeiros Militar do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - R M Valentim
- Escola de Ciências da Saúde, Universidade do Grande Rio, Rio de Janeiro, Brazil
| | - F G Belladonna
- Faculdade de Odontologia, Universidade Federal Fluminense, Niteroi, Brazil
| | - G A De-Deus
- Escola de Ciências da Saúde, Universidade do Grande Rio, Rio de Janeiro, Brazil
| | - I C Lima
- Laboratório de Instrumentação Nuclear, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - A A Neves
- Departamento de Odontopediatria e Ortodontia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Calderon-Rodriguez S, Pineda F, Perez R, Muñoz C. Tolerability to dogfish in children with fish allergy. Allergol Immunopathol (Madr) 2016; 44:167-9. [PMID: 26337570 DOI: 10.1016/j.aller.2015.05.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 05/22/2015] [Accepted: 05/26/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND Fish is a potent food allergen. The aim of this work is to demonstrate that dogfish, a small shark, has low allergenicity in both its clinical tolerance as well as its molecular structure. METHODS We present a study of 34 paediatric patients with IgE-mediated immediate reactions after eating fish. The diagnosis of several fish allergies was demonstrated by skin prick techniques and determination of specific IgE, in all the cases excluding sensitisation to Anisakis simplex. Open oral challenge test was checked with dogfish. Analysis was by SDS-PAGE of dogfish and other fish (megrim, shark, hake, sole, cod, anchovy and tuna) and Western-blot with "pool" of patients polysensitised sera against extracts of dogfish and other fish, and ELISA - inhibition with the "pool" sera. RESULTS The prick-prick with raw dogfish was slightly positive in six patients, however cooked was negative in 34 cases. The specific IgE showed in the 34 cases class ≥2 for megrim, hake, sole, cod and anchovy, class 0 for tuna in 26 patients, class 0 for emperor in 18 patients and class 0 to Anisakis simplex in all cases. The IgE binding capacity for proteins of allergenic extracts of tested fish revealed, in immunoblotting, the absence of IgE-mediated recognition abstract dogfish by the "pool" of polysensitised patient sera. CONCLUSIONS Testing in vivo and in vitro demonstrated the low allergenicity of dogfish. Dogfish brings an alternative to eating fish in polysensitised patients.
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Serre S, Mickelsen L, Calfee MW, Wood JP, Gray MS, Scheffrahn RH, Perez R, Kern WH, Daniell N. Whole-building decontamination of Bacillus anthracis Sterne spores by methyl bromide fumigation. J Appl Microbiol 2015; 120:80-9. [PMID: 26492200 PMCID: PMC4738447 DOI: 10.1111/jam.12974] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 07/31/2015] [Revised: 09/16/2015] [Accepted: 10/09/2015] [Indexed: 11/28/2022]
Abstract
AIMS To evaluate the field inactivation of Bacillus anthracis Sterne spores with methyl bromide (MB) using commercial fumigation techniques. METHODS AND RESULTS Eighty-seven wood and 87 glass coupons each containing ca. 1 × 10(6) B. anthracis Sterne spores, were placed in 22 locations inside a 1444 m(3) conference building. Four additional 12-coupon sets (six wood, six glass) were removed from the building at 16, 24, 32 and 40 h during fumigation. The building was sealed under two tarpaulins and fumigated with MB at ≥225 g m(-3) mean concentration for 48 h at 28°C and 83% RH. All B. anthracis spores fumigated for more than 16 h were inactivated. A single wood coupon from the 16-h set yielded ca. 2 × 10(3) CFU. No damage to the building or its contents was observed. CONCLUSIONS MB fumigation is a rapid, economical and effective whole-structure decontamination method for B. anthracis spores. SIGNIFICANCE AND IMPACT OF THE STUDY MB fumigation offers a method of whole-structure B. anthracis decontamination without removal of materials, damage to sensitive electronics, costly indoor retrofitting.
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Affiliation(s)
- S Serre
- United States Environmental Protection Agency, Research Triangle Park, NC, USA
| | - L Mickelsen
- United States Environmental Protection Agency, Research Triangle Park, NC, USA
| | - M W Calfee
- United States Environmental Protection Agency, Research Triangle Park, NC, USA
| | - J P Wood
- United States Environmental Protection Agency, Research Triangle Park, NC, USA
| | - M S Gray
- United States Environmental Protection Agency, Research Triangle Park, NC, USA
| | - R H Scheffrahn
- Fort Lauderdale Research and Education Center, University of Florida, Davie, FL, USA
| | - R Perez
- Fort Lauderdale Research and Education Center, University of Florida, Davie, FL, USA
| | - W H Kern
- Fort Lauderdale Research and Education Center, University of Florida, Davie, FL, USA
| | - N Daniell
- CSS-Dynamac Corporation, Environmental Services, Atlanta, GA, USA
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Stockert B, Amato R, Friedell R, Haun C, Perez R, Whang J. Improving recognition of adverse events in the ICU using targeted de-briefing and high-fidelity simulation. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.1404] [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: 10/23/2022]
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Martin-Malo A, Aljama P, Pasalodos J, Sancho M, Valles E, Moreno E, Gomez J, Perez R, Burdiel LG, Andres E. Effects of haemodialysis and haemofiltration on myocardial function. Contrib Nephrol 2015; 41:403-8. [PMID: 6525863 DOI: 10.1159/000429318] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Rengel M, Junco E, Perez R, Jofre R, Alonso S, Valderrabano F, Vinay P, Lemieux G. Renal ammoniagenesis during acute hypoxic lactic acidosis in the dog. Contrib Nephrol 2015; 47:87-97. [PMID: 4064704 DOI: 10.1159/000411213] [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: 01/08/2023]
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Junco E, Perez R, Jofre R, Alonso S, Rengel M, Valderrabano F, Vinay P. Renal ammoniagenesis in acute hypokalemia in vivo in the dog. Contrib Nephrol 2015; 63:125-31. [PMID: 3191703 DOI: 10.1159/000415709] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- E Junco
- Nephrology Service, Hospital General Gregorio Marañon, Madrid, Spain
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50
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Junco E, Perez R, Jofre R, Alonso S, Martinez A, Tejedor A, Madero R, Valderrabano F, Vinay P. Acute and chronic metabolic acidosis in the pig: renal metabolism and ammoniagenesis. Contrib Nephrol 2015; 92:18-30. [PMID: 1756640 DOI: 10.1159/000420073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- E Junco
- Nephrology Service, Hospital General Gregorio Marañon, Madrid, Spain
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