1
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Ramos E, Selleghin-Veiga G, Magpali L, Daros B, Silva F, Picorelli A, Freitas L, Nery MF. Molecular Footprints on Osmoregulation-Related Genes Associated with Freshwater Colonization by Cetaceans and Sirenians. J Mol Evol 2023; 91:865-881. [PMID: 38010516 DOI: 10.1007/s00239-023-10141-0] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 10/29/2023] [Indexed: 11/29/2023]
Abstract
The genetic basis underlying adaptive physiological mechanisms has been extensively explored in mammals after colonizing the seas. However, independent lineages of aquatic mammals exhibit complex patterns of secondary colonization in freshwater environments. This change in habitat represents new osmotic challenges, and additional changes in key systems, such as the osmoregulatory system, are expected. Here, we studied the selective regime on coding and regulatory regions of 20 genes related to the osmoregulation system in strict aquatic mammals from independent evolutionary lineages, cetaceans, and sirenians, with representatives in marine and freshwater aquatic environments. We identified positive selection signals in genes encoding the protein vasopressin (AVP) in mammalian lineages with secondary colonization in the fluvial environment and in aquaporins for lineages inhabiting the marine and fluvial environments. A greater number of sites with positive selection signals were found for the dolphin species compared to the Amazonian manatee. Only the AQP5 and AVP genes showed selection signals in more than one independent lineage of these mammals. Furthermore, the vasopressin gene tree indicates greater similarity in river dolphin sequences despite the independence of their lineages based on the species tree. Patterns of distribution and enrichment of Transcription Factors in the promoter regions of target genes were analyzed and appear to be phylogenetically conserved among sister species. We found accelerated evolution signs in genes ACE, AQP1, AQP5, AQP7, AVP, NPP4, and NPR1 for the fluvial mammals. Together, these results allow a greater understanding of the molecular bases of the evolution of genes responsible for osmotic control in aquatic mammals.
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Affiliation(s)
- Elisa Ramos
- Laboratório de Genômica Evolutiva., Departamento de Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas, Cidade Universitária, Campinas, SP, 13083970, Brazil
| | - Giovanna Selleghin-Veiga
- Laboratório de Genômica Evolutiva., Departamento de Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas, Cidade Universitária, Campinas, SP, 13083970, Brazil
| | - Letícia Magpali
- Laboratório de Genômica Evolutiva., Departamento de Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas, Cidade Universitária, Campinas, SP, 13083970, Brazil
| | - Beatriz Daros
- Laboratório de Genômica Evolutiva., Departamento de Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas, Cidade Universitária, Campinas, SP, 13083970, Brazil
| | - Felipe Silva
- Laboratório de Genômica Evolutiva., Departamento de Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas, Cidade Universitária, Campinas, SP, 13083970, Brazil
| | - Agnello Picorelli
- Laboratório de Genômica Evolutiva., Departamento de Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas, Cidade Universitária, Campinas, SP, 13083970, Brazil
| | - Lucas Freitas
- Laboratório de Genômica Evolutiva., Departamento de Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas, Cidade Universitária, Campinas, SP, 13083970, Brazil
| | - Mariana F Nery
- Laboratório de Genômica Evolutiva., Departamento de Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas, Cidade Universitária, Campinas, SP, 13083970, Brazil.
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2
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Tartari R, Millanez D, Oliveira A, Freitas L, Razzera E, Lima J, Bernardes S, Silva F. Low Calf Circumference Classified By Measured Or Body Mass Index-Adjusted Values: Prevalence In Hospitalized Patients. Clin Nutr ESPEN 2023. [DOI: 10.1016/j.clnesp.2022.09.228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
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3
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Gangavarapu K, Latif AA, Mullen JL, Alkuzweny M, Hufbauer E, Tsueng G, Haag E, Zeller M, Aceves CM, Zaiets K, Cano M, Zhou X, Qian Z, Sattler R, Matteson NL, Levy JI, Lee RTC, Freitas L, Maurer-Stroh S, Suchard MA, Wu C, Su AI, Andersen KG, Hughes LD. Outbreak.info genomic reports: scalable and dynamic surveillance of SARS-CoV-2 variants and mutations. Nat Methods 2023; 20:512-522. [PMID: 36823332 PMCID: PMC10399614 DOI: 10.1038/s41592-023-01769-3] [Citation(s) in RCA: 78] [Impact Index Per Article: 78.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 01/17/2023] [Indexed: 02/25/2023]
Abstract
In response to the emergence of SARS-CoV-2 variants of concern, the global scientific community, through unprecedented effort, has sequenced and shared over 11 million genomes through GISAID, as of May 2022. This extraordinarily high sampling rate provides a unique opportunity to track the evolution of the virus in near real-time. Here, we present outbreak.info , a platform that currently tracks over 40 million combinations of Pango lineages and individual mutations, across over 7,000 locations, to provide insights for researchers, public health officials and the general public. We describe the interpretable visualizations available in our web application, the pipelines that enable the scalable ingestion of heterogeneous sources of SARS-CoV-2 variant data and the server infrastructure that enables widespread data dissemination via a high-performance API that can be accessed using an R package. We show how outbreak.info can be used for genomic surveillance and as a hypothesis-generation tool to understand the ongoing pandemic at varying geographic and temporal scales.
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Affiliation(s)
- Karthik Gangavarapu
- Department of Human Genetics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA.
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, USA.
| | - Alaa Abdel Latif
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, USA
| | - Julia L Mullen
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA, USA
| | - Manar Alkuzweny
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, USA
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, USA
| | - Emory Hufbauer
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, USA
| | - Ginger Tsueng
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA, USA
| | - Emily Haag
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA, USA
| | - Mark Zeller
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, USA
| | - Christine M Aceves
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, USA
| | - Karina Zaiets
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA, USA
| | - Marco Cano
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA, USA
| | - Xinghua Zhou
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA, USA
| | - Zhongchao Qian
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA, USA
| | - Rachel Sattler
- Skaggs Graduate School of Biological and Chemical Sciences, The Scripps Research Institute, La Jolla, CA, USA
| | - Nathaniel L Matteson
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, USA
| | - Joshua I Levy
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, USA
| | - Raphael T C Lee
- GISAID Global Data Science Initiative, Munich, Germany
- Bioinformatics Institute & ID Labs, Agency for Science Technology and Research, Singapore, Singapore
| | - Lucas Freitas
- GISAID Global Data Science Initiative, Munich, Germany
- Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil
| | - Sebastian Maurer-Stroh
- GISAID Global Data Science Initiative, Munich, Germany
- Bioinformatics Institute & ID Labs, Agency for Science Technology and Research, Singapore, Singapore
- National Centre for Infectious Diseases, Ministry of Health, Singapore, Singapore
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Marc A Suchard
- Department of Human Genetics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
- Department of Biomathematics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
- Department of Biostatistics, Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA, USA
| | - Chunlei Wu
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA, USA
- Scripps Research Translational Institute, La Jolla, CA, USA
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - Andrew I Su
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA, USA
- Scripps Research Translational Institute, La Jolla, CA, USA
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - Kristian G Andersen
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, USA
- Scripps Research Translational Institute, La Jolla, CA, USA
| | - Laura D Hughes
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA, USA.
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4
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Silva FA, Souza ÉMS, Ramos E, Freitas L, Nery MF. The molecular evolution of genes previously associated with large sizes reveals possible pathways to cetacean gigantism. Sci Rep 2023; 13:67. [PMID: 36658131 PMCID: PMC9852289 DOI: 10.1038/s41598-022-24529-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 11/16/2022] [Indexed: 01/21/2023] Open
Abstract
Cetaceans are a group of aquatic mammals with the largest body sizes among living animals, including giant representatives such as blue and fin whales. To understand the genetic bases of gigantism in cetaceans, we performed molecular evolutionary analyses on five genes (GHSR, IGF2, IGFBP2, IGFBP7, and EGF) from the growth hormone/insulin-like growth factor axis, and four genes (ZFAT, EGF, LCORL, and PLAG1) previously described as related to the size of species evolutionarily close to cetaceans, such as pigs, cows, and sheep. Our dataset comprised 19 species of cetaceans, seven of which are classified as giants because they exceed 10 m in length. Our results revealed signs of positive selection in genes from the growth hormone/insulin-like growth factor axis and also in those related to body increase in cetacean-related species. In addition, pseudogenization of the EGF gene was detected in the lineage of toothless cetaceans, Mysticeti. Our results suggest the action of positive selection on gigantism in genes that act both in body augmentation and in mitigating its consequences, such as cancer suppression when involved in processes such as division, migration, and cell development control.
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Affiliation(s)
- Felipe André Silva
- grid.411087.b0000 0001 0723 2494Laboratório de Genômica Evolutiva, Departamento de Genética, Evolução, Microbiologia e Imunologia, Instituto de Biologia, Universidade Estadual de Campinas-UNICAMP, 255, Monteiro Lobato, Cidade Universitária, IB, Bloco H, Campinas, SP 13083-862 Brazil
| | - Érica M. S. Souza
- grid.411087.b0000 0001 0723 2494Laboratório de Genômica Evolutiva, Departamento de Genética, Evolução, Microbiologia e Imunologia, Instituto de Biologia, Universidade Estadual de Campinas-UNICAMP, 255, Monteiro Lobato, Cidade Universitária, IB, Bloco H, Campinas, SP 13083-862 Brazil
| | - Elisa Ramos
- grid.411087.b0000 0001 0723 2494Laboratório de Genômica Evolutiva, Departamento de Genética, Evolução, Microbiologia e Imunologia, Instituto de Biologia, Universidade Estadual de Campinas-UNICAMP, 255, Monteiro Lobato, Cidade Universitária, IB, Bloco H, Campinas, SP 13083-862 Brazil
| | - Lucas Freitas
- grid.411087.b0000 0001 0723 2494Laboratório de Genômica Evolutiva, Departamento de Genética, Evolução, Microbiologia e Imunologia, Instituto de Biologia, Universidade Estadual de Campinas-UNICAMP, 255, Monteiro Lobato, Cidade Universitária, IB, Bloco H, Campinas, SP 13083-862 Brazil
| | - Mariana F. Nery
- grid.411087.b0000 0001 0723 2494Laboratório de Genômica Evolutiva, Departamento de Genética, Evolução, Microbiologia e Imunologia, Instituto de Biologia, Universidade Estadual de Campinas-UNICAMP, 255, Monteiro Lobato, Cidade Universitária, IB, Bloco H, Campinas, SP 13083-862 Brazil
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5
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Prado T, Brandão ML, Fumian TM, Freitas L, Chame M, Leomil L, Magalhães MGP, Degrave WMS, Leite JPG, Miagostovich MP. Virome analysis in lakes of the South Shetland Islands, Antarctica - 2020. Sci Total Environ 2022; 852:158537. [PMID: 36075413 DOI: 10.1016/j.scitotenv.2022.158537] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 08/05/2022] [Accepted: 09/01/2022] [Indexed: 05/25/2023]
Abstract
Polar freshwater ecosystems are characterized by a distinct microbiota. However, little is known about viral diversity and abundance, especially regarding the ecology of RNA viruses. We used shotgun metagenomic analysis on samples from Antarctic ecosystems, and report here the characterization of the virome fraction, from different lakes located in the South Shetland Islands (Penguin, Ardley, Deception and King George Island) in the Peninsula Antarctica, in the summer season 2020. DNA viruses (99.4 %) prevailed over RNA viruses (0.6 %) in the lake samples. Six viral orders were identified in the metagenomic libraries: Caudovirales (dsDNA), which was prevalent in most lakes; Picornavirales (ssRNA+); Sobelivirales (ssRNA+); Tolivirales (ssRNA+); Petitvirales (ssDNA) and Baphyvirales (ssDNA), including eight viral families (Herelleviridae, Siphoviridae, Myoviridae, Microviridae, Marnaviridae, Bacilladnaviridae, Barnaviridae and Tombusviridae) and several other, mainly non-classified ssRNA(+) viruses in the lakes of Ardley Island. Bacteriophages (dsDNA) (Herelleviridae family) infecting the phylum Firmicutes and Siphoviridae were predominant in most lakes evaluated. Functional analysis demonstrated a prevalence of unknown proteins (68 %) in the virome. Our prospective study provides virome analysis data from different lakes in the South Shetland Islands, Antarctica, opening exploratory lines for future research related to the biodiversity and viral ecology in this extreme ecosystem.
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Affiliation(s)
- Tatiana Prado
- Laboratory of Comparative and Environmental Virology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av. Brasil, 4365, Manguinhos, Rio de Janeiro, CEP 21040-360, Brazil.
| | - Martha Lima Brandão
- FioAntar Project/ VPPIS - Fiocruz, Av Brasil 4365, Manguinhos, Rio de Janeiro, RJ 21040-360, Brazil
| | - Tulio Machado Fumian
- Laboratory of Comparative and Environmental Virology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av. Brasil, 4365, Manguinhos, Rio de Janeiro, CEP 21040-360, Brazil
| | - Lucas Freitas
- Laboratory of Respiratory Virus and Measles, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av. Brasil, 4365, Manguinhos, Rio de Janeiro CEP 21040-360, Brazil
| | - Marcia Chame
- Institutional Platform for Biodiversity and Wildlife Health, Av Brasil 4365, Manguinhos, Rio de Janeiro, RJ 21040-360, Brazil
| | - Luciana Leomil
- SENAI Innovation Institute for Biosynthetics and Fibers, Technology Center for Chemical and Textile Industry, 4° Andar: Biotecnologia, Rua Fernando de Souza Barros, 120, Parque Tecnológico da UFRJ, Cidade Universitária, Rio de Janeiro CEP 21941-857, Brazil
| | - Maithê Gaspar Pontes Magalhães
- Laboratory of Functional Genomics and Bioinformatics, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av. Brasil, 4365, Manguinhos, Rio de Janeiro, RJ 21040-360, Brazil
| | - Wim Maurits Sylvain Degrave
- Laboratory of Functional Genomics and Bioinformatics, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av. Brasil, 4365, Manguinhos, Rio de Janeiro, RJ 21040-360, Brazil
| | - José Paulo Gagliardi Leite
- Laboratory of Comparative and Environmental Virology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av. Brasil, 4365, Manguinhos, Rio de Janeiro, CEP 21040-360, Brazil
| | - Marize Pereira Miagostovich
- Laboratory of Comparative and Environmental Virology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av. Brasil, 4365, Manguinhos, Rio de Janeiro, CEP 21040-360, Brazil
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6
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Happi C, Adetifa I, Mbala P, Njouom R, Nakoune E, Happi A, Ndodo N, Ayansola O, Mboowa G, Bedford T, Neher RA, Roemer C, Hodcroft E, Tegally H, O’Toole Á, Rambaut A, Pybus O, Kraemer MUG, Wilkinson E, Isidro J, Borges V, Pinto M, Gomes JP, Freitas L, Resende PC, Lee RTC, Maurer-Stroh S, Baxter C, Lessells R, Ogwell AE, Kebede Y, Tessema SK, de Oliveira T. Urgent need for a non-discriminatory and non-stigmatizing nomenclature for monkeypox virus. PLoS Biol 2022; 20:e3001769. [PMID: 35998195 PMCID: PMC9451062 DOI: 10.1371/journal.pbio.3001769] [Citation(s) in RCA: 120] [Impact Index Per Article: 60.0] [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] [Revised: 09/07/2022] [Indexed: 11/30/2022] Open
Abstract
The current nomenclature for monkeypox virus is stigmatising and misleading. This Perspective article proposes a practical and neutral system of nomenclature that will allow efficient communication without the risk of further misconceptions, discrimination and stigmatisation.
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Affiliation(s)
- Christian Happi
- African Centre of Excellence for Genomics of Infectious Diseases (ACEGID), Redeemer’s University; Ede, Osun State, Nigeria
- Department of Biological Sciences, Faculty of Natural Sciences, Redeemer’s University, Ede, Osun State, Nigeria
- * E-mail: (CH); (TO)
| | | | - Placide Mbala
- Institut National de Recherche Biomedicale, Kinshasa, Democratic Republic of the Congo; University of Kinshasa, Kinshasa, Democratic Republic of Congo
| | - Richard Njouom
- Virology Unit, Centre Pasteur of Cameroon, Yaoundé, Cameroon
| | | | - Anise Happi
- African Centre of Excellence for Genomics of Infectious Diseases (ACEGID), Redeemer’s University; Ede, Osun State, Nigeria
| | | | | | - Gerald Mboowa
- Africa Centres for Disease Control and Prevention (Africa CDC), Addis Ababa, Ethiopia
| | - Trevor Bedford
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, Washington, United States of America
- Howard Hughes Medical Institute, Seattle, Washington, United States of America
| | - Richard A. Neher
- Biozentrum, University of Basel, Basel, Switzerland
- Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Cornelius Roemer
- Biozentrum, University of Basel, Basel, Switzerland
- Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Emma Hodcroft
- Swiss Institute of Bioinformatics, Lausanne, Switzerland
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
- Geneva Center of Emerging Viral Diseases, HUG, University of Geneva, Geneva, Switzerland
| | - Houriiyah Tegally
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
- Centre for Epidemic Response and Innovation (CERI), School of Data Science and Computational Thinking, Stellenbosch University, Stellenbosch, South Africa
| | - Áine O’Toole
- Institute of Ecology and Evolution, University of Edinburgh, Edinburgh, United Kingdom
| | - Andrew Rambaut
- Institute of Ecology and Evolution, University of Edinburgh, Edinburgh, United Kingdom
| | - Oliver Pybus
- Department of Zoology, University of Oxford, Oxford, United Kingdom
- Pandemic Sciences Institute, University of Oxford, Oxford, United Kingdom
- Department of Pathobiology and Population Sciences, Royal Veterinary College, London, United Kingdom
| | - Moritz U. G. Kraemer
- Department of Zoology, University of Oxford, Oxford, United Kingdom
- Pandemic Sciences Institute, University of Oxford, Oxford, United Kingdom
| | - Eduan Wilkinson
- Centre for Epidemic Response and Innovation (CERI), School of Data Science and Computational Thinking, Stellenbosch University, Stellenbosch, South Africa
| | - Joana Isidro
- Genomics and Bioinformatics Unit, Department of Infectious Diseases, National Institute of Health (INSA), Lisbon, Portugal
| | - Vítor Borges
- Genomics and Bioinformatics Unit, Department of Infectious Diseases, National Institute of Health (INSA), Lisbon, Portugal
| | - Miguel Pinto
- Genomics and Bioinformatics Unit, Department of Infectious Diseases, National Institute of Health (INSA), Lisbon, Portugal
| | - João Paulo Gomes
- Genomics and Bioinformatics Unit, Department of Infectious Diseases, National Institute of Health (INSA), Lisbon, Portugal
- Faculty of Veterinary Medicine, Lusófona University, Lisbon, Portugal
| | - Lucas Freitas
- GISAID at Laboratorio de vírus respiratórios-IOC/FIOCRUZ, Rio de Janeiro, Brazil
| | - Paola C. Resende
- GISAID at Laboratorio de vírus respiratórios-IOC/FIOCRUZ, Rio de Janeiro, Brazil
| | - Raphael T. C. Lee
- GISAID at Bioinformatics Institute and ID labs A*STAR, Singapore, Singapore
| | - Sebastian Maurer-Stroh
- Department of Biological Sciences and YLL School of Medicine, National University of Singapore, Singapore, Singapore
| | - Cheryl Baxter
- Centre for Epidemic Response and Innovation (CERI), School of Data Science and Computational Thinking, Stellenbosch University, Stellenbosch, South Africa
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Durban, South Africa
| | - Richard Lessells
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Durban, South Africa
| | - Ahmed E. Ogwell
- Africa Centres for Disease Control and Prevention (Africa CDC), Addis Ababa, Ethiopia
| | - Yenew Kebede
- Africa Centres for Disease Control and Prevention (Africa CDC), Addis Ababa, Ethiopia
| | - Sofonias K. Tessema
- Africa Centres for Disease Control and Prevention (Africa CDC), Addis Ababa, Ethiopia
| | - Tulio de Oliveira
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
- Centre for Epidemic Response and Innovation (CERI), School of Data Science and Computational Thinking, Stellenbosch University, Stellenbosch, South Africa
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Durban, South Africa
- Department of Global Health, University of Washington, Seattle, Washington, United States of America
- * E-mail: (CH); (TO)
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7
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Gangavarapu K, Latif AA, Mullen JL, Alkuzweny M, Hufbauer E, Tsueng G, Haag E, Zeller M, Aceves CM, Zaiets K, Cano M, Zhou J, Qian Z, Sattler R, Matteson NL, Levy JI, Lee RTC, Freitas L, Maurer-Stroh S, Suchard MA, Wu C, Su AI, Andersen KG, Hughes LD. Outbreak.info genomic reports: scalable and dynamic surveillance of SARS-CoV-2 variants and mutations. Res Sq 2022:rs.3.rs-1723829. [PMID: 35794893 PMCID: PMC9258294 DOI: 10.21203/rs.3.rs-1723829/v1] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
The emergence of SARS-CoV-2 variants of concern has prompted the need for near real-time genomic surveillance to inform public health interventions. In response to this need, the global scientific community, through unprecedented effort, has sequenced and shared over 11 million genomes through GISAID, as of May 2022. This extraordinarily high sampling rate provides a unique opportunity to track the evolution of the virus in near real-time. Here, we present outbreak.info, a platform that currently tracks over 40 million combinations of PANGO lineages and individual mutations, across over 7,000 locations, to provide insights for researchers, public health officials, and the general public. We describe the interpretable and opinionated visualizations in the variant and location focussed reports available in our web application, the pipelines that enable the scalable ingestion of heterogeneous sources of SARS-CoV-2 variant data, and the server infrastructure that enables widespread data dissemination via a high performance API that can be accessed using an R package. We present a case study that illustrates how outbreak.info can be used for genomic surveillance and as a hypothesis generation tool to understand the ongoing pandemic at varying geographic and temporal scales. With an emphasis on scalability, interactivity, interpretability, and reusability, outbreak.info provides a template to enable genomic surveillance at a global and localized scale.
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Affiliation(s)
- Karthik Gangavarapu
- Department of Human Genetics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Alaa Abdel Latif
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Julia L. Mullen
- Department of Integrative, Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Manar Alkuzweny
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Emory Hufbauer
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Ginger Tsueng
- Department of Integrative, Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Emily Haag
- Department of Integrative, Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Mark Zeller
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Christine M. Aceves
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Karina Zaiets
- Department of Integrative, Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Marco Cano
- Department of Integrative, Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Jerry Zhou
- Department of Integrative, Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Zhongchao Qian
- Department of Integrative, Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Rachel Sattler
- Skaggs Graduate School of Biological and Chemical Sciences, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Nathaniel L Matteson
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Joshua I. Levy
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Raphael TC Lee
- GISAID Global Data Science Initiative (GISAID), Munich, Germany
- Bioinformatics Institute & ID Labs, Agency for Science Technology and Research, Singapore
| | - Lucas Freitas
- GISAID Global Data Science Initiative (GISAID), Munich, Germany
- Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil
| | - Sebastian Maurer-Stroh
- GISAID Global Data Science Initiative (GISAID), Munich, Germany
- Bioinformatics Institute & ID Labs, Agency for Science Technology and Research, Singapore
- National Centre for Infectious Diseases, Ministry of Health, Singapore
- Department of Biological Sciences, National University of Singapore, Singapore
| | | | - Marc A. Suchard
- Department of Human Genetics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
- Department of Biomathematics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
- Department of Biostatistics, Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Chunlei Wu
- Department of Integrative, Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
- Scripps Research Translational Institute, La Jolla, CA 92037, USA
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Andrew I. Su
- Department of Integrative, Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
- Scripps Research Translational Institute, La Jolla, CA 92037, USA
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Kristian G. Andersen
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA 92037, USA
- Scripps Research Translational Institute, La Jolla, CA 92037, USA
| | - Laura D. Hughes
- Department of Integrative, Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
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8
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Freitas L, Nery MF. Positive selection in multiple salivary gland proteins of Anophelinae reveals potential targets for vector control. Infect Genet Evol 2022; 100:105271. [PMID: 35339698 DOI: 10.1016/j.meegid.2022.105271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 03/11/2022] [Accepted: 03/14/2022] [Indexed: 06/14/2023]
Abstract
Anopheles is a genus belonging to the Culicidae family, which has great medical importance due to its role as a vector of Plasmodium, the causative agent of malaria. Great focus has been given to the salivary gland proteins (SGPs) group from Anopheles' functional genomics. This class of proteins is essential to blood-feeding behavior as they have attributes such as vasodilators and anti-clotting properties. Recently, a comprehensive review on Anopheles SGPs was performed; however, the authors did not deeply explore the adaptive molecular evolution of these genes. In this context, this work aimed to perform a more detailed analysis of the adaptive molecular evolution of SGPs in Anopheles, carrying out positive selection and gene family evolution analysis on 824 SGPs. Our results show that most SGPs have positively selected codon sites that can be used as targets in developing new strategies for vector control and that younger SGPs evolve at a faster rate than older SGPs. Notably, we could not find any evidence of an accelerated shift in SGPs' rates of gene gain and loss compared with other proteins, as suggested in previous works.
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Affiliation(s)
- Lucas Freitas
- Laboratório de Genômica Evolutiva, Departamento de Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil.
| | - Mariana F Nery
- Laboratório de Genômica Evolutiva, Departamento de Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
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9
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Costa-Silva T, Carvalho A, Souza C, Freitas L, De Castro H, Oliveira W. Highly effective Candida rugosa lipase immobilization on renewable carriers: integrated drying and immobilization process to improve enzyme performance. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.04.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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10
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Leite JA, Vicari A, Perez E, Siqueira M, Resende P, Motta FC, Freitas L, Fernandez J, Parra B, Castillo A, Fasce R, Martinez Caballero AA, Gresh L, Aldighieri S, Gabastou JM, Franco L, Mendez-Rico J. Implementation of a COVID-19 Genomic Surveillance Regional Network for Latin America and Caribbean region. PLoS One 2022; 17:e0252526. [PMID: 35239677 PMCID: PMC8893691 DOI: 10.1371/journal.pone.0252526] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [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: 10/13/2020] [Accepted: 01/27/2022] [Indexed: 11/25/2022] Open
Abstract
The timely release of SARS-CoV-2 first genomic sequences allowed the identification of the etiologic agent and development of diagnostic protocols. Genomic sequencing was a crucial step in generating data for driving laboratory response and detections of SARS-CoV-2 since the start of the COVID-19 pandemic. Because of all the progression and achievements that timely release of genetic sequence data represents in the public health response, the Pan American Health Organization (PAHO) in collaboration with countries' public health laboratories, started implementation of a network for strengthening the Latin America and Caribbean (LAC) region on timely generation of SARS-CoV-2 genomic data. Here we describe the implementation of the COVID-19 Genomic Surveillance Regional Network in the Americas region during the beginning of the pandemic. The establishment of this network has strengthened laboratory response capacity at the country level, as well as facilitated timely release of SARS-CoV-2 genomic information to be used to complement the multiple response strategies for COVID-19 pandemic mitigation. As genomic epidemiology is useful for guiding public health decisions on outbreak and response, we also analysed the first SARS-CoV-2 genomic sequence data from countries of the Latin America and Caribbean Region.
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Affiliation(s)
- Juliana Almeida Leite
- Health Emergencies Department, Pan American Health Organization, Washington, DC, United States of America
| | - Andrea Vicari
- Health Emergencies Department, Pan American Health Organization, Washington, DC, United States of America
| | - Enrique Perez
- Health Emergencies Department, Pan American Health Organization, Washington, DC, United States of America
| | - Marilda Siqueira
- Laboratorio de Virus Respiratorio, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - Paola Resende
- Laboratorio de Virus Respiratorio, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - Fernando Couto Motta
- Laboratorio de Virus Respiratorio, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - Lucas Freitas
- Laboratorio de Virus Respiratorio, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - Jorge Fernandez
- Subdepartamento Genética Molecular, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Barbara Parra
- Subdepartamento Genética Molecular, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Andrés Castillo
- Subdepartamento Genética Molecular, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Rodrigo Fasce
- Subdepartamento Enfermidades Virales, Instituto de Salud Pública de Chile, Santiago, Chile
| | | | | | - Lionel Gresh
- Health Emergencies Department, Pan American Health Organization, Washington, DC, United States of America
| | - Sylvain Aldighieri
- Health Emergencies Department, Pan American Health Organization, Washington, DC, United States of America
| | - Jean-Marc Gabastou
- Health Emergencies Department, Pan American Health Organization, Washington, DC, United States of America
| | - Leticia Franco
- Health Emergencies Department, Pan American Health Organization, Washington, DC, United States of America
| | - Jairo Mendez-Rico
- Health Emergencies Department, Pan American Health Organization, Washington, DC, United States of America
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11
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Prado T, Shubo T, Freitas L, Leomil L, Maranhão AG, Miagostovich MP. Virome in roof-harvested rainwater of a densely urbanized low-income region. Sci Total Environ 2022; 807:150778. [PMID: 34619218 DOI: 10.1016/j.scitotenv.2021.150778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/13/2021] [Accepted: 09/01/2021] [Indexed: 06/13/2023]
Abstract
Rainwater harvesting has been considered an affordable practice to supplement the conventional sources of water supply for potable and non-potable uses worldwide. This study characterizes the viral community found in roof-harvested rainwater (RHRW) samples obtained under different rain volumes in a densely urbanized low-income region in Rio de Janeiro, Brazil. Three pilot-scale standardized metal-sheet roofs (same catchment area, material age, and slope - 3%) were installed in the study area aiming at obtaining more reliable and representative samples. Fifty-four samples were collected from six rainfall events from January to April 2019 and concentrated by the skimmed-milk flocculation method. Pools of different rainfall volumes were submitted to high throughput sequencing using the shotgun metagenomic approach. Sequencing was performed on NextSeq platform. Genomic analysis of the virus community revealed that most are RNA non-human viruses, including two main families: Dicistroviridae and Iflaviridae, recognized for infecting arthropods. Bacteriophages were also relatively abundant, with a predominance of DNA phages belonging to Microviridae and Siphoviridae families, showing percentages from 5.3 and 3.7% of the total viral hits present in these samples, respectively. Viral genomic RNA viruses (77%) predominated over DNA viruses (23%). Concerning number of viral species identified, a higher percentage was observed for plant viruses (12 families, 58%). Hepatitis A virus and human klassevirus 1 were detected among the established human pathogens, suggesting the need for RHRW treatment before it is considered for human consumption. Australian bat lyssavirus was also detected, emphasizing the importance of environmental monitoring facing emerging viruses. The results corroborate the influence of the surrounding area on the rainwater quality.
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Affiliation(s)
- Tatiana Prado
- Laboratory of Comparative and Environmental Virology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation. Av. Brasil, 4365, Manguinhos CEP 21040-360, Rio de Janeiro, Brazil.
| | - Tatsuo Shubo
- Sergio Arouca Public Health National School, Oswaldo Cruz Foundation, Brazil
| | - Lucas Freitas
- Laboratory of Respiratory Virus and Measles, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Brazil
| | - Luciana Leomil
- SENAI Innovation Institute for Biosynthetics and Fibers, Technology Center for Chemical and Textile Industry, SENAI CETIQT - R: Fernando de Souza Barros, 120 - Cidade Universitária Ilha do Fundão, Rio de Janeiro CEP: 21941-857, RJ, Brazil
| | - Adriana Gonçalves Maranhão
- Laboratory of Comparative and Environmental Virology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation. Av. Brasil, 4365, Manguinhos CEP 21040-360, Rio de Janeiro, Brazil
| | - Marize Pereira Miagostovich
- Laboratory of Comparative and Environmental Virology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation. Av. Brasil, 4365, Manguinhos CEP 21040-360, Rio de Janeiro, Brazil
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12
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Khare S, Gurry C, Freitas L, Schultz MB, Bach G, Diallo A, Akite N, Ho J, Lee RT, Yeo W, Curation Team GC, Maurer-Stroh S. GISAID's Role in Pandemic Response. China CDC Wkly 2021; 3:1049-1051. [PMID: 34934514 PMCID: PMC8668406 DOI: 10.46234/ccdcw2021.255] [Citation(s) in RCA: 422] [Impact Index Per Article: 140.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 11/17/2021] [Indexed: 11/23/2022] Open
Affiliation(s)
- Shruti Khare
- GISAID Global Data Science Initiative (GISAID), Munich, Germany.,Bioinformatics Institute, Agency for Science Technology and Research, Singapore
| | - Céline Gurry
- GISAID Global Data Science Initiative (GISAID), Munich, Germany
| | - Lucas Freitas
- GISAID Global Data Science Initiative (GISAID), Munich, Germany.,Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil
| | - Mark B Schultz
- GISAID Global Data Science Initiative (GISAID), Munich, Germany
| | - Gunter Bach
- GISAID Global Data Science Initiative (GISAID), Munich, Germany
| | - Amadou Diallo
- GISAID Global Data Science Initiative (GISAID), Munich, Germany.,Institut Pasteur de Dakar, Dakar, Senegal
| | - Nancy Akite
- GISAID Global Data Science Initiative (GISAID), Munich, Germany
| | - Joses Ho
- GISAID Global Data Science Initiative (GISAID), Munich, Germany.,Bioinformatics Institute, Agency for Science Technology and Research, Singapore
| | - Raphael Tc Lee
- GISAID Global Data Science Initiative (GISAID), Munich, Germany.,Bioinformatics Institute, Agency for Science Technology and Research, Singapore
| | - Winston Yeo
- GISAID Global Data Science Initiative (GISAID), Munich, Germany.,Bioinformatics Institute, Agency for Science Technology and Research, Singapore
| | - Gisaid Core Curation Team
- GISAID Global Data Science Initiative (GISAID), Munich, Germany.,Bioinformatics Institute, Agency for Science Technology and Research, Singapore.,Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil.,National Institutes of Biotechnology Malaysia, Selangor, Malaysia.,Smorodintsev Research Institute of Influenza, St. Petersburg, Russia.,Genome Institute of Singapore, Agency for Science Technology and Research, Singapore.,China National GeneBank, Shenzhen, China
| | - Sebastian Maurer-Stroh
- GISAID Global Data Science Initiative (GISAID), Munich, Germany.,Bioinformatics Institute, Agency for Science Technology and Research, Singapore.,ASTAR Infectious Disease Labs (ID Labs), Singapore.,National Public Health Laboratory, National Centre for Infectious Diseases, Ministry of Health, Singapore.,Department of Biological Sciences, National University of Singapore, Singapore
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13
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Andrade RS, Freitas L. Impact of an IUCN national Red List of threatened flora on scientific attention. ENDANGER SPECIES RES 2021. [DOI: 10.3354/esr01154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Red Lists are thought to attract attention to the conservation of threatened species. Determining the impact of these lists on the attention of scientists is a matter of consequence for biodiversity conservation. We evaluated trends in mentions of Brazilian angiosperm plants in the biodiversity conservation literature and tested the effect of the Red List of Brazilian Flora (RLBF) publication on these mentions. We collected mentions in the literature available in Google Scholar from the years 1990-2020, for 2449 Brazilian angiosperm species assessed in different IUCN categories. We used a Bayesian structural time-series method to test the effect of the RLBF publication on the number of mentions for the set of species in the IUCN categories, angiosperm families, and plants of commercial interest. The results showed a gap in mentions for many threatened and Data Deficient species in the scientific literature. We also found that the mentions were biased toward species of commercial interest and were unrelated to their threat status. Publication of the RLBF positively affected the number of mentions for IUCN threat categories and for more than half of the angiosperm families. These results were obtained after a few species of commercial interest were excluded from each treated group. This study suggests that the Red List assessments are essential to determine priorities for resource allocation to scientific activities. However, this effect was not sufficient to reduce the bias in scientific attention. Our findings support the need to stimulate more effective programs to fund research on threatened plant species.
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Affiliation(s)
- RS Andrade
- Jardim Botânico do Rio de Janeiro, CEP 20460-030, Rio de Janeiro, Brazil
| | - L Freitas
- Jardim Botânico do Rio de Janeiro, CEP 20460-030, Rio de Janeiro, Brazil
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14
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Abstract
The National Basketball Association (NBA) is the main basketball league around the globe with estimated revenue of approximately US$ 49.5 billion. A key change in NBA rules was the implementation of the three-point (3PT) line in the 1979–1980 season. Recently a popular conception claims that NBA is passing through a 3PT revolution; however, few works have discussed the evolution of shot patterns in the NBA. Thus, in this article NBA shot data per 100 possessions for each player from all seasons since implementation of the 3PT line were gathered to compare 2PT and 3PT shot statistics, aiming to understand how the shot pattern evolved throughout the NBA history. The results show that the main differences in shot patterns happened due to modifications in the 3PT line distance. The only exception was the statistically significant increase of 3PT attempts (3PTA) in the 1986–1987 season, a likely result of the success of the first 3PT contest in the previous season, which probably led most players to attempt this kind of shot. Also, the results did not show any season-by-season statistically significant change in shot patterns after the 3PT line distance was returned to its original distance in the 1997–1998 season. Thus, the actual popularity and numbers of 3PTA gradually increased throughout the seasons.
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Affiliation(s)
- Lucas Freitas
- Institute of Biology, Department of Genetics, Evolution, Microbiology and Immunology, State University of Campinas, Rua Bertrand Russel, s/n, 13083-970 Campinas, SP Brazil
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15
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Calegario G, Freitas L, Appolinario LR, Venas T, Arruda T, Otsuki K, Masi B, Omachi C, Moreira AP, Soares AC, Rezende CE, Garcia G, Tschoeke D, Thompson C, Thompson FL. Conserved rhodolith microbiomes across environmental gradients of the Great Amazon Reef. Sci Total Environ 2021; 760:143411. [PMID: 33243513 DOI: 10.1016/j.scitotenv.2020.143411] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 10/09/2020] [Accepted: 10/20/2020] [Indexed: 06/11/2023]
Abstract
The Great Amazon Reef System (GARS) covers an estimated area of 56,000 km2 off the mouth of the Amazon River. Living rhodolith holobionts are major benthic components of the GARS. However, it is unclear whether environmental conditions modulate the rhodolith microbiomes. Previous studies suggest that environmental parameters such as light, temperature, depth, and nutrients are drivers of rhodolith health. However, it is unclear whether rhodoliths from different sectors (northern, central, and southern) from the GARS have different microbiomes. We analysed metagenomes of rhodoliths (n = 10) and seawater (n = 6), obtained from the three sectors, by illumina shotgun sequencing (total read counts: 25.73 million). Suspended particulate material and isotopic composition of dissolved organic carbon (δ13C) indicated a strong influence of the Amazon river plume over the entire study area. However, photosynthetically active radiation at the bottom (PARb) was higher in the southern sector reefs, ranging from 10.1 to 14.3 E.m-2 day-1. The coralline calcareous red algae (CCA) Corallina caespitosa, Corallina officinalis, Lithophyllum cabiochiae, and Hapalidiales were present in the three sectors and in most rhodolith samples. Rhodolith microbiomes were very homogeneous across the studied area and differed significantly from seawater microbiomes. However, some subtle differences were found when comparing the rhodolith microbiomes from the northern and central sectors to the ones from the southern. Consistent with the higher light availability, two phyla were more abundant in rhodolith microbiomes from southern sites (Bacteroidetes, and Cyanobacteria). In addition, two functional categories were enhanced in southern rhodolith microbiomes (iron acquisition and metabolism, and photosynthesis). Phycobiliprotein-coding genes were also more abundant in southern locations, while the functional categories of respiration and sulfur metabolism were enhanced in northern and central rhodolith microbiomes, consistent with higher nutrient loads. The results confirm the conserved nature of rhodolith microbiomes even under pronounced environmental gradients. Subtle taxonomic and functional differences observed in rhodolith microbiomes may enable rhodoliths to thrive in changing environmental conditions.
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Affiliation(s)
- Gabriela Calegario
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Lucas Freitas
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Luciana Reis Appolinario
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Taina Venas
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Tatiane Arruda
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Koko Otsuki
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Bruno Masi
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Claudia Omachi
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; Universidade de São Paulo, Instituto Oceanográfico, Laboratório de Indicadores Ambientais, São Paulo, Brazil
| | - Ana Paula Moreira
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Ana Carolina Soares
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Carlos E Rezende
- Laboratório de Ciências Ambientais, Universidade Estadual Norte Fluminense (UENF), Campos, Brazil
| | - Gizele Garcia
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Diogo Tschoeke
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Cristiane Thompson
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
| | - Fabiano L Thompson
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
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16
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Freitas L, Appolinario L, Calegario G, Campeão M, Tschoeke D, Garcia G, Venancio IM, Cosenza CAN, Leomil L, Bernardes M, Albuquerque AL, Thompson C, Thompson F. Glacial-interglacial transitions in microbiomes recorded in deep-sea sediments from the western equatorial Atlantic. Sci Total Environ 2020; 746:140904. [PMID: 32763595 DOI: 10.1016/j.scitotenv.2020.140904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/09/2020] [Accepted: 07/09/2020] [Indexed: 06/11/2023]
Abstract
In the late Quaternary, glacial-interglacial transitions are marked by major environmental changes. Glacial periods in the western equatorial Atlantic (WEA) are characterized by high continental terrigenous input, which increases the proportion of terrestrial organic matter (e.g. lignin, alkanes), nutrients (e.g. iron and sulphur), and lower primary productivity. On the other hand, interglacials are characterized by lower continental contribution and maxima in primary productivity. Microbes can serve as biosensors of past conditions, but scarce information is available on deep-sea sediments in the WEA. The hypothesis put forward in this study is that past changes in climate conditions modulated the taxonomic/functional composition of microbes from deep sediment layers. To address this hypothesis, we collected samples from a marine sediment core located in the WEA, which covered the last 130 kyr. This region is influenced by the presence of the Amazon River plume, which outputs dissolved and particulate nutrients in vast oceanic regions, as well as the Parnaiba river plume. Core GL-1248 was analysed by shotgun metagenomics and geochemical analyses (alkane, lignin, perylene, sulphur). Two clusters (glacial and interglacial-deglacial) were found based on taxonomic and functional profiles of metagenomes. The interglacial period had a higher abundance of genes belonging to several sub-systems (e.g. DNA, RNA metabolism, cell division, chemotaxis, and respiration) that are consistent with a past environment with enhanced primary productivity. On the other hand, the abundance of Alcanivorax, Marinobacter, Kangiella and aromatic compounds that may serve as energy sources for these bacteria were higher in the glacial. The glacial period was enriched in genes for the metabolism of aromatic compounds, lipids, isoprenoids, iron, and Sulphur, consistent with enhanced fluvial input during the last glacial period. In contrast, interglacials have increased contents of more labile materials originating from phytoplankton (e.g. Prochlorococcus). This study provides new insights into the microbiome as climatic archives at geological timescales.
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Affiliation(s)
- Lucas Freitas
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, UFRJ, Rio de Janeiro, Brazil
| | - Luciana Appolinario
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, UFRJ, Rio de Janeiro, Brazil
| | - Gabriela Calegario
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, UFRJ, Rio de Janeiro, Brazil
| | - Mariana Campeão
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, UFRJ, Rio de Janeiro, Brazil
| | - Diogo Tschoeke
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, UFRJ, Rio de Janeiro, Brazil
| | - Gizele Garcia
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, UFRJ, Rio de Janeiro, Brazil
| | - Igor Martins Venancio
- Center for Weather Forecasting and Climate Studies (CPTEC), National Institute for Space Research (INPE), Cachoeira Paulista, Brazil; Gradutate Program on Geoscience (Geochemistry), Federal Fluminense University, Niterói, Brazil
| | | | | | - Marcelo Bernardes
- Gradutate Program on Geoscience (Geochemistry), Federal Fluminense University, Niterói, Brazil
| | - Ana Luiza Albuquerque
- Gradutate Program on Geoscience (Geochemistry), Federal Fluminense University, Niterói, Brazil.
| | - Cristiane Thompson
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, UFRJ, Rio de Janeiro, Brazil.
| | - Fabiano Thompson
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, UFRJ, Rio de Janeiro, Brazil.
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17
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Abstract
Many studies have evaluated and categorized the pollination systems of plants in different regions. These studies resulted in the definition of new pollination systems, such as that by small diverse insects (SDI). Although SDI systems are frequent in tropical communities, we know little about the species of plants and pollinators that compose these systems. This study synthesized knowledge of SDI systems through a systematic review of the literature, in order to characterize the composition of plants and pollinator species related to this pollination system. Most studies of SDI systems were carried out in tropical rainforest communities, and used a variety of terminologies and concepts. We found 362 plant species assigned to the SDI system, distributed in 76 families and 35 orders. These species are mainly trees and have inconspicuous greenish flowers, and most are hermaphroditic or dioecious. Few studies provided information on the composition of pollinators, which encompassed small and large insects; beetles, wasp, flies, and bees were the most frequent groups. We suggest adoption of the term "pollination system by diverse insects" instead of "small diverse insects." We discuss conceptual aspects and questions for studies with this pollination system.
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Affiliation(s)
- M M Moreira
- Centro de Ciências Agrárias, Univ Federal do Espírito Santo, Alegre, ES, Brazil.
- Jardim Botânico do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
| | - L Freitas
- Jardim Botânico do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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18
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Abstract
BACKGROUND The blood-feeding behavior evolved multiple times in Insecta lineages and it represents an excellent opportunity to study patterns of convergent molecular evolution regarding this habit. In insects the expansion of some gene families is linked with blood-feeding behavior, but a wide study comparing the evolution of these gene families among different lineages is still missing. Here we gathered genomic data from six independently-evolved hematophagous lineages, aiming to identify convergent expansions and/or contractions of gene families in hematophagous lineages of insects. RESULTS We found four rapidly evolving gene families shared by at least two hematophagous independently-evolved lineages, including a heat-shock and a chemosensory protein. On the expression of these four rapidly evolving gene families we found more genes expressed in mated individuals compared with virgin individuals in rapidly-expanded families and more genes expressed in non-blood-feeding individuals compared with blood-feeding individuals in rapidly-contracted families. CONCLUSION Our results reveal a new set of candidate genes to be explored in further analysis to help the development of new strategies to deal with blood-feeding vectors and also presents a new perspective to study the evolution of hematophagy identifying convergent molecular patterns.
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Affiliation(s)
- Lucas Freitas
- Laboratório de Genômica Evolutiva, Departamento de Genética, Evolução, Microbiologia e Imunologia, Instituto de Biologia, Universidade Estadual de Campinas, Rua Bertrand Russell, S/N, Cidade Universitária, IB, Bloco H, Campinas, SP, Brazil.
- School of Biological and Chemical Sciences, Queen Mary University of London, London, UK.
| | - Mariana F Nery
- Laboratório de Genômica Evolutiva, Departamento de Genética, Evolução, Microbiologia e Imunologia, Instituto de Biologia, Universidade Estadual de Campinas, Rua Bertrand Russell, S/N, Cidade Universitária, IB, Bloco H, Campinas, SP, Brazil
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19
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Freitas L, Mesquita RD, Schrago CG. Survey for positively selected coding regions in the genome of the hematophagous tsetse fly Glossina morsitans identifies candidate genes associated with feeding habits and embryonic development. Genet Mol Biol 2020; 43:e20180311. [PMID: 32555940 PMCID: PMC7288665 DOI: 10.1590/1678-4685-gmb-2018-0311] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Accepted: 08/23/2019] [Indexed: 11/22/2022] Open
Abstract
Tsetse flies are responsible for the transmission of Trypanossoma sp. to vertebrate animals in Africa causing huge health issues and economic loss. The availability of the genome sequence of Glossina morsitans enabled the discovery of several genes related to medically important phenotypes and novel physiological features. However, a genome-wide scan for coding regions that underwent positive selection is still missing, which is surprising given the evolution of traits associated with the hematophagy in this lineage. In this study, we employed an experimental design that controlled for the rate of false positives and we performed a scan of 3,318 G. morsitans genes. We found 145 genes with significant historical signal of positive selection. These genes were categorized into 18 functional classes after careful manual annotation. Based on their attributed functions, we identified candidate genes related with feeding habits and embryonic development. When our results were contrasted with gene expression data, we confirmed that most genes that underwent adaptive molecular evolution were frequently expressed in organs associated with key physiological evolutionary innovations in the G. morsitans lineage, namely, the salivary gland, the midgut, fat body tissue, and in the spermatophore.
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Affiliation(s)
- Lucas Freitas
- Universidade Federal do Rio de Janeiro, Departamento de Genética, Rio de Janeiro, RJ, Brazil.,Universidade Federal do Rio de Janeiro, Instituto de Química, Departamento de Bioquímica, Laboratório de Bioinformática, Rio de Janeiro, RJ, Brazil.,Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Rio de Janeiro, RJ, Brazil
| | - Rafael D Mesquita
- Universidade Federal do Rio de Janeiro, Instituto de Química, Departamento de Bioquímica, Laboratório de Bioinformática, Rio de Janeiro, RJ, Brazil.,Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Rio de Janeiro, RJ, Brazil
| | - Carlos G Schrago
- Universidade Federal do Rio de Janeiro, Departamento de Genética, Rio de Janeiro, RJ, Brazil
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20
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Melo DCM, Lira SMA, Moreira APB, Freitas L, Lima CAD, Thompson F, Bertrand A, Silva AC, Neumann-Leitão S. Genetic diversity and connectivity of Flaccisagitta enflata (Chaetognatha: Sagittidae) in the tropical Atlantic ocean (northeastern Brazil). PLoS One 2020; 15:e0231574. [PMID: 32374742 PMCID: PMC7202658 DOI: 10.1371/journal.pone.0231574] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 03/26/2020] [Indexed: 11/18/2022] Open
Abstract
The phylogeography of the holoplanktonic chaetognath Flaccisagitta enflata was investigated in the Tropical Western Atlantic (TWA). Considering the cosmopolitan range of this species and the fact that its entire life cycle is planktonic, the central hypothesis of this study is that F. enflata exhibits connectivity due to its high dispersal capacity, forming a panmictic population among the study sites. The evaluated areas included neritic (Port of Recife–PR, and Tamandaré - TA) and oceanic (Fernando de Noronha Archipelago—FN, Rocas Atoll—RA, Guará seamount—GS and Saint Peter and Saint Paul’s Archipelago—SPSPA) locations of the Brazilian Blue Amazon. We used COI gene sequences as molecular marker. Partial sequences (425 bp) were obtained for 116 specimens and employed to reconstruct the phylogeny, build an haplotype network, evaluate gene flow through a migration model, and estimate diversity indices, population structuring and demographic history. High levels of haplotype diversity (mean: 0.98) and moderate to high levels of nucleotide diversity (mean: 0.023) were observed. The phylogeny and the haplotype network topologies showed some geographic clustering, indicating local structuring in GS and PR. This finding was supported by the AMOVA high global Φst (0.033, significant) and some pairwise Φst comparisons (7 out of 15 were significantly >0). Significant differences suggested lower levels of connectivity when GS population was compared to those of FN and SPSPA; as well as when TA was compared to FN. These results might be related to particularities of the oceanic dynamics which rules the TWA, sustaining such dissimilarities. Structuring was also observed between PR and all oceanic locations. We hypothesize that the topography of the port inlet, enclosured by a reef barrier, may constrain the water turnover ratio and thus migration rates of F. enflata in the TWA. Accordingly, Migrate-N yielded a four metapopulations model (PR ⇌ TA ⇌ SPSPA+FN ⇌ GS+RA) as the best (highest probability; ~0.90) to represent the structuring of F. enflata in the TWA. Therefore, the null hypothesis of one randomly mating population cannot be accepted. The demographic evaluation demonstrated that the neutral hypothesis of stable populations may not be rejected for most of the locations. This work is the start point to broaden the knowledge on the phylogeography and population genetic structure of a numerically dominant species in the Western Atlantic, with key role in the marine trophic web.
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Affiliation(s)
- Danielle C. M. Melo
- Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, Brazil
- * E-mail:
| | - Simone M. A. Lira
- Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, Brazil
- Programa de pós-graduação em Ecologia, Universidade Federal Rural de Pernambuco, Recife, Brazil
| | - Ana Paula B. Moreira
- Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Lucas Freitas
- Departamento de Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas, São Paulo, Brazil
| | - Camilla A. D. Lima
- Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, Brazil
| | - Fabiano Thompson
- Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- SAGE—COPPE, Centro de Gestão Tecnológica—CT2, Rio de Janeiro, Brazil
| | - Arnaud Bertrand
- Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, Brazil
- Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Recife, Brazil
- MARBEC, CNRS, Ifremer, IRD, Institut de Recherche pour le Développement (IRD), Université Montpellier, Sète, France
| | - Alex C. Silva
- Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, Brazil
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21
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Silva M, Freitas L, Mendonça H, Souza A, Pereira H, Augusti R, Lacerda I, Melo J, Araújo R. DETERMINATION OF CHEMICAL PROFILE OF Eugenia dysenterica ICE CREAM USING PS-MS AND HS-SPME/ GC-MS. QUIM NOVA 2020. [DOI: 10.21577/0100-4042.20170680] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
The incorporation of Cerrado fruits in food products such as ice cream has many advantages because it represents a source of nutrients and bioactive compounds. Given the demand for less laborious methods to analyze food, the paper spray ionization mass spectrometry technique was applied for the first time for a rapid characterization of the chemical components found cagaita ice cream. PS-MS in positive and negative ionization modes were used. The profile of volatile compounds was determined by headspace solid-phase microextraction combined with gas chromatography-mass spectrometry. Fingerprints obtained through PS-MS identified various classes of compounds, such as flavones, anthocyanins, sugars, organic acids, hydroxybenzoic acids, fatty acids, hydroxycinnamic acids, lignin, and phenylpropanoid. The use of both fibers enabled the extraction and identification of 18 volatile compounds in cagaita, and 16 of them were also identified in cagaita ice cream. The most common volatile compound found in both cagaita and ice cream was 3-carene monoterpene. Considering the effect of processing on cagaita constituents, 89% of the volatile compounds remained in the ice cream. Also, 78% of the fruit chemical compounds analyzed by PS-MS were found in the product. Thus, the results indicate that most of the fruit compounds remained in the ice cream after processing.
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22
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Freitas L, Sicupira L, Pinho G, Silvério F. Optimization and Validation of LLE-LTP and QuEChERS Methodologies for Determining 2,4-D in Water Samples. J BRAZIL CHEM SOC 2020. [DOI: 10.21577/0103-5053.20200086] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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23
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Rodrigues Neto G, Silva JCGD, Freitas L, Silva HGD, Caldas D, Novaes JDS, Cirilo-Sousa MS. Effects of strength training with continuous or intermittent blood flow restriction on the hypertrophy, muscular strength and endurance of men. Acta Sci Health Sci 2019. [DOI: 10.4025/actascihealthsci.v41i1.42273] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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24
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Calegario G, Freitas L, Santos E, Silva B, Oliveira L, Garcia G, Omachi C, Pereira R, Thompson C, Thompson F. Environmental modulation of the proteomic profiles from closely phylogenetically related populations of the red seaweed Plocamium brasiliense. PeerJ 2019; 7:e6469. [PMID: 30972241 PMCID: PMC6450377 DOI: 10.7717/peerj.6469] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 10/02/2018] [Accepted: 01/17/2019] [Indexed: 11/30/2022] Open
Abstract
The genus Plocamium encompasses seaweeds that are widely distributed throughout the world’s oceans, with Plocamium brasiliense found along the tropical and subtropical coasts of the Western Atlantic. This wide distribution can lead to structured populations due to environmental differences (e.g., light levels or temperature), restricted gene flow, and the presence of cryptic species. Abiotic variation can also affect gene expression, which consequently leads to differences in the seaweeds protein profile. This study aimed to analyze the genetic and proteomic profiles of P. brasiliense sampled in two geographically distinct sites on the coastline of Rio de Janeiro state, Brazil: Arraial do Cabo (P1) and Búzios (P2). The genetic profiles of macroalgal specimens from these two sites were indistinguishable as assessed by the markers UPA/23S, rbcL, and COI-5P; however, the protein profiles varied significantly between populations from the two sites. At both sites the ribulose-1,5-biphosphate carboxylase/oxygenase was the most abundant protein found in P. brasiliense specimens. The number of phycobiliproteins differed between both sites with the highest numbers being found at P1, possibly due to water depth. The differences in proteomic profiles of the two nearly identical populations of P. brasiliense suggest that environmental parameters such as light availability and desiccation might induce distinct protein expression, probably as a result of the phenotypic plasticity within this population of seaweed.
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Affiliation(s)
- Gabriela Calegario
- Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,SAGE-COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Lucas Freitas
- Department of Biochemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Department of Genetics, Evolution, Microbiology and Immunology, State University of Campinas, Campinas, São Paulo, Brazil
| | - Eidy Santos
- Unit of Biology, State University of the West Zone, Rio de Janeiro, Brazil
| | - Bruno Silva
- Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,SAGE-COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Louisi Oliveira
- Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,SAGE-COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Gizele Garcia
- Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,SAGE-COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Department of Undergraduate Education, Federal University of Rio de Janeiro, Macaé, Brazil
| | - Cláudia Omachi
- Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Renato Pereira
- Department of Marine Biology, Fluminense Federal University, Niterói, Brazil.,Rio de Janeiro Botanical Garden, Rio de Janeiro, Brazil
| | - Cristiane Thompson
- Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,SAGE-COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Fabiano Thompson
- Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,SAGE-COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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25
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Silva M, Freitas L, Souza A, Araújo R, Lacerda I, Pereira H, Augusti R, Melo J. Antioxidant Activity and Metabolomic Analysis of Cagaitas (Eugenia dysenterica) using Paper Spray Mass Spectrometry. J BRAZIL CHEM SOC 2019. [DOI: 10.21577/0103-5053.20190002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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26
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Freitas L, Mello B, Schrago CG. Multispecies coalescent analysis confirms standing phylogenetic instability in Hexapoda. J Evol Biol 2018; 31:1623-1631. [PMID: 30058265 DOI: 10.1111/jeb.13355] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 06/28/2018] [Accepted: 07/23/2018] [Indexed: 11/28/2022]
Abstract
The multispecies coalescent (MSC) has been increasingly used in phylogenomic analyses due to the accommodation of gene tree topological heterogeneity by taking into account population-level processes, such as incomplete lineage sorting. In this sense, the phylogeny of insect species, which are characterized by their large effective population sizes, is suitable for a coalescent-based analysis. Furthermore, studies so far recovered short internal branches at early divergences of the insect tree of life, indicating fast evolutionary radiations that increase the probability of incomplete lineage sorting in deep time. Here, we investigated the performance of the MSC for a phylogenomic data set of hexapods compiled by Misof et al. (2014, Science 346:763). Our analysis recovered the monophyly of most insect orders, and major phylogenetic relationships were in agreement with current insect systematics. We identified, however, some evolutionary associations that were consistently problematic. Most noticeable, Hexapod monophyly was disrupted by the sister group relationship between the remiped crustacean and Insecta. Additionally, the interordinal relationships within Polyneoptera and Neuropteroidea were found to be phylogenetically unstable. We show that these controversial phylogenetic arrangements were also poorly supported by previous analyses, and therefore, we evaluated their robustness to stochastic errors from sampling sites and terminals, confirming standing problems in hexapod phylogeny in the genomics age.
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Affiliation(s)
- Lucas Freitas
- Departamento de Genética, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Beatriz Mello
- Departamento de Genética, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Carlos G Schrago
- Departamento de Genética, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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27
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Silva M, Bueno G, Araújo R, Lacerda I, Freitas L, Morais H, Augusti R, Melo J. Evaluation of the Influence of Extraction Conditions on the Isolation and Identification of Volatile Compounds from Cagaita (Eugenia dysenterica) Using HS‑SPME/GC-MS. J BRAZIL CHEM SOC 2018. [DOI: 10.21577/0103-5053.20180187] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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28
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Portugal Velloso E, Freitas L, Silva A, Sampaio W. Use of non invasive ventilation to treat severe hypoventilation syndrome and obstructive sleep apnea case. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.780] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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29
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Sotto Mayor T, Monteiro T, Françolin L, Freitas L. ISQUA17-3096SEPSE PROTOCOL MANAGEMENT IMPACT IN REDUCING MORTALITY RATE IN HOSPITAL SAO LUCAS IN RIBEIRAO PRETO, BRAZIL. Int J Qual Health Care 2017. [DOI: 10.1093/intqhc/mzx125.38] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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30
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Papiorek S, Junker RR, Alves-Dos-Santos I, Melo GAR, Amaral-Neto LP, Sazima M, Wolowski M, Freitas L, Lunau K. Bees, birds and yellow flowers: pollinator-dependent convergent evolution of UV patterns. Plant Biol (Stuttg) 2016; 18:46-55. [PMID: 25703147 DOI: 10.1111/plb.12322] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Accepted: 02/16/2015] [Indexed: 05/07/2023]
Abstract
Colour is one of the most obvious advertisements of flowers, and occurs in a huge diversity among the angiosperms. Flower colour is responsible for attraction from a distance, whereas contrasting colour patterns within flowers aid orientation of flower visitors after approaching the flowers. Due to the striking differences in colour vision systems and neural processing across animal taxa, flower colours evoke specific behavioural responses by different flower visitors. We tested whether and how yellow flowers differ in their spectral reflectance depending on the main pollinator. We focused on bees and birds and examined whether the presence or absence of the widespread UV reflectance pattern of yellow flowers predicts the main pollinator. Most bee-pollinated flowers displayed a pattern with UV-absorbing centres and UV-reflecting peripheries, whereas the majority of bird-pollinated flowers are entirely UV- absorbing. In choice experiments we found that bees did not show consistent preferences for any colour or pattern types. However, all tested bee species made their first antennal contact preferably at the UV-absorbing area of the artificial flower, irrespective of its spatial position within the flower. The appearance of UV patterns within flowers is the main difference in spectral reflectance between yellow bee- and bird-pollinated flowers, and affects the foraging behaviour of flower visitors. The results support the hypothesis that flower colours and the visual capabilities of their efficient pollinators are adapted to each other.
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Affiliation(s)
- S Papiorek
- Department Biology, Institute of Sensory Ecology, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - R R Junker
- Department of Ecology and Evolution, University Salzburg, Salzburg, Austria
| | - I Alves-Dos-Santos
- Instituto de Biociências da USP, Universidade de São Paulo, São Paulo, Brazil
| | - G A R Melo
- Laboratório de Biologia Comparada de Hymenoptera, Departamento de Zoologia, Universidade Federal do Paraná, Curitiba, Brazil
| | - L P Amaral-Neto
- Laboratório de Biologia Comparada de Hymenoptera, Departamento de Zoologia, Universidade Federal do Paraná, Curitiba, Brazil
| | - M Sazima
- Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, Brazil
| | - M Wolowski
- Programa de Pós-Graduação em Botânica, Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rio de Janeiro, Brazil
| | - L Freitas
- Jardim Botânico do Rio de Janeiro, Rio de Janeiro, Brazil
| | - K Lunau
- Department Biology, Institute of Sensory Ecology, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
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31
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Nabais Sá MJ, Sampaio S, Oliveira A, Alves S, Moura CP, Silva SE, Castro R, Araújo JA, Rodrigues M, Neves F, Seabra J, Soares C, Gaspar MA, Tavares I, Freitas L, Sousa TC, Henriques AC, Costa FT, Morgado E, Sousa FT, Sousa JP, da Costa AG, Filipe R, Garrido J, Montalban J, Ponce P, Alves R, Faria B, Carvalho MF, Pestana M, Carvalho F, Oliveira JP. Collagen type IV-related nephropathies in Portugal: pathogenic COL4A5 mutations and clinical characterization of 22 families. Clin Genet 2014; 88:462-7. [PMID: 25307721 DOI: 10.1111/cge.12522] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 10/08/2014] [Accepted: 10/08/2014] [Indexed: 11/28/2022]
Abstract
Alport syndrome (AS) is caused by pathogenic mutations in the genes encoding α3, α4 or α5 chains of collagen IV (COL4A3/COL4A4/COL4A5), resulting in hematuria, chronic renal failure (CRF), sensorineural hearing loss (SNHL) and ocular abnormalities. Mutations in the X-linked COL4A5 gene have been identified in 85% of the families (XLAS). In this study, 22 of 60 probands (37%) of unrelated Portuguese families, with clinical diagnosis of AS and no evidence of autosomal inheritance, had pathogenic COL4A5 mutations detected by Sanger sequencing and/or multiplex-ligation probe amplification, of which 12 (57%) are novel. Males had more severe and earlier renal and extrarenal complications, but microscopic hematuria was a constant finding irrespective of gender. Nonsense and splice site mutations, as well as small and large deletions, were associated with younger age of onset of SNHL in males, and with higher risk of CRF and SNHL in females. Pathogenic COL4A3 or COL4A4 mutations were subsequently identified in more than half of the families without a pathogenic mutation in COL4A5. The lower than expected prevalence of XLAS in Portuguese families warrants the use of next-generation sequencing for simultaneous COL4A3/COL4A4/COL4A5 analysis, as first-tier approach to the genetic diagnosis of collagen type IV-related nephropathies.
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Affiliation(s)
- M J Nabais Sá
- Department of Genetics, Faculty of Medicine, Porto, Portugal.,Unit of Research and Development of Nephrology (FCT-725), Faculty of Medicine, University of Porto, Porto, Portugal
| | - S Sampaio
- Unit of Research and Development of Nephrology (FCT-725), Faculty of Medicine, University of Porto, Porto, Portugal.,Department of Nephrology, Porto, Portugal
| | - A Oliveira
- Department of Nephrology, Porto, Portugal
| | - S Alves
- Department of Genetics, Faculty of Medicine, Porto, Portugal
| | - C P Moura
- Department of Otolaryngology, Porto, Portugal.,Medical Genetics Outpatient Clinic, Porto, Portugal
| | - S E Silva
- Department of Ophthalmology, Hospital de São João, Porto, Portugal
| | - R Castro
- Department of Nephrology, Centro Hospitalar de Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | - J A Araújo
- Department of Nephrology, Hospital dos Marmeleiros, Funchal, Portugal
| | - M Rodrigues
- Department of Medical Genetics, Hospital Dona Estefânia, Lisboa, Portugal
| | - F Neves
- Dialysis Clinic of Santarém, NephroCare-Portugal, Santarém, Portugal
| | - J Seabra
- Department of Nephrology, Centro Hospitalar Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - C Soares
- Department of Nephrology, Hospital de Braga, Braga, Portugal
| | - M A Gaspar
- Dialysis Clinic of Restelo, NephroCare-Portugal, Lisboa, Portugal
| | - I Tavares
- Unit of Research and Development of Nephrology (FCT-725), Faculty of Medicine, University of Porto, Porto, Portugal.,Dialysis Clinic of Santo Tirso, Uninefro, Santo Tirso, Portugal
| | - L Freitas
- Department of Nephrology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - T C Sousa
- Department of Nephrology, Hospital de São Teotónio, Viseu, Portugal.,Dialysis Clinic of Guarda, NephroCare-Portugal, Guarda, Portugal
| | - A C Henriques
- Dialysis Clinic of Braga, NephroCare-Portugal, Braga, Portugal
| | - F T Costa
- Department of Nephrology, Hospital Garcia de Orta, Almada, Portugal
| | - E Morgado
- Department of Nephrology, Hospital de Faro, Faro, Portugal
| | - F T Sousa
- Dialysis Clinic of Montijo, NephroCare-Portugal, Montijo, Portugal
| | - J P Sousa
- Department of Nephrology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.,Dialysis Clinic of Coimbra, NephroCare-Portugal, Coimbra, Portugal
| | - A G da Costa
- Department of Nephrology, Hospital de Santa Maria, Lisboa, Portugal
| | - R Filipe
- Department of Nephrology, Hospital Amato Lusitano, Castelo Branco, Portugal
| | - J Garrido
- Department of Nephrology, Hospital de São Teotónio, Viseu, Portugal
| | - J Montalban
- Dialysis Clinic of Covilhã, NephroCare-Portugal, Covilhã, Portugal
| | - P Ponce
- Dialysis Clinic of Lumiar, NephroCare-Portugal, Lisboa, Portugal
| | - R Alves
- Dialysis Clinic of Viseu, NephroCare-Portugal, Viseu, Portugal
| | - B Faria
- Dialysis Clinic of Guarda, NephroCare-Portugal, Guarda, Portugal
| | - M F Carvalho
- Unit of Renal Morphology, Department of Nephrology, Hospital Curry Cabral, Lisboa, Portugal
| | - M Pestana
- Unit of Research and Development of Nephrology (FCT-725), Faculty of Medicine, University of Porto, Porto, Portugal.,Department of Nephrology, Porto, Portugal
| | - F Carvalho
- Department of Genetics, Faculty of Medicine, Porto, Portugal
| | - J P Oliveira
- Department of Genetics, Faculty of Medicine, Porto, Portugal.,Unit of Research and Development of Nephrology (FCT-725), Faculty of Medicine, University of Porto, Porto, Portugal.,Medical Genetics Outpatient Clinic, Porto, Portugal
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Alegretti J, Freitas L, Riboldi M, Gomes C, Motta E, Serafini P. Women undergoing multiple IVF attempts have higher incidence of chromosomally normal embryos than in women suffering from repetitive miscarriages. Fertil Steril 2012. [DOI: 10.1016/j.fertnstert.2012.07.513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Ferreira A, Magalhães M, Carvalho M, Pais M, Freitas L, Regedor A, Moura P. O19. Kidney transplantation and pregnancy: Maternal and fetal outcome. Pregnancy Hypertens 2011; 1:265-6. [DOI: 10.1016/j.preghy.2011.08.051] [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: 12/01/2022]
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Santos C, Ventura A, Gomes AM, Pereira S, Almeida C, Seabra J, Segelmark M, Mattsson L, Said S, Olde B, Solem K, Yu X, Zhang B, Sun B, Mao H, Xing C, Gruss E, Portoles J, Tato A, Lopez-Sanchez P, Jimenez P, de la Cruz R, Furaz K, Martinez S, Mas M, Andres MM, Corchete E, Kim YO, Kim HG, Kim BS, Song HC, Choi EJ, Ibeas J, Vallespin J, Fortuno JR, Rodriguez-Jornet A, Grau C, Merino J, Branera J, Perendreu J, Granados I, Mateos A, Jimeno V, Moya C, Ramirez J, Falco J, Gimenez A, Garcia M, Morgado E, Pinho A, Guedes A, Guerreiro R, Mendes P, Bexiga I, Silva A, Marques J, Neves P, Shibata K, Iwamoto T, Murakami T, Ono S, Kaneda T, Kuji T, Kawata S, Satta H, Tamura K, Toya Y, Yanagi M, Umemura S, Yasuda G, Yong OL, Lim WWL, Yong KM, Tay KH, Lim EK, Yang WS, Tan SG, Choong HL, Hill A, Blatter D, Kim YO, Kim HG, Song HC, Choi EJ, Kim SY, Min JK, Park WD, Kim HG, Kim YO, Kim BS, Kim SY, Min JK, Park WD, Ibeas J, Fortuno JR, Branera J, Rodriguez- Jornet A, Perendreu J, Marcet M, Vinuesa X, Mateo A, Jimeno V, Fernandez M, Moya C, Rivera J, Falco J, Garcia M, Shibahara H, Shibahara N, Takahashi S, Shibahara H, Shibahara N, Takahashi S, Kanaa M, Wright MJ, Sandoe JAT, Freudiger H, Dupret J, Jacquemoud MC, Rossi L, Kampouris C, Hatzimpaloglou A, Karamouzis M, Pliakos C, Malindretos P, Roudenko I, Grekas D, Costa AC, Santana A, Neves F, Costa AGD, Chaudhry M, Bhola C, Joarder M, Lok C, Coentrao L, Faria B, Frazao J, Pestana M, Sun XF, Yang Y, Wang J, Lin HL, Li JJ, Yao L, Zhao JY, Zhang ZM, Lun LD, Zhang JR, Zhang YM, Li MX, Jiang SM, Wang Y, Zhu HY, Chen XM, Caeiro F, Carvalho D, Cruz J, Ribeiro dos Santos J, Nolasco F, Bartlett R, Pandya B, Viana N, Machado S, Gil C, Lucas C, Mendes A, Barata J, Freitas L, Campos M, Rikker C, Juhasz E, Toth A, Vizi I, Tornoci L, Rosivall L, Tovarosi S, Cho S, Kim S, Lee YJ, Kanai H, Harada K, Nasu S, Shinozaki M, Shibahara N, Shibahara H, Takahashi S, Esenturk M, Zengin M, Ogun F, Akdemir A, Colak C, Pekince G, Gerasimovska V, Oncevski A, Gerasimovska-Kitanovska B, Sikole A, Kiselev N, Chernyshev S, Zlokazov V, Idov E, Bacallao Mendez R, Avila A, Salgado J, Llerena B, Badell A, Aties M, Severn A, Metcalfe W, Traynor J, Boyd J, Kerssens J, Henderson A, Simpson K, Roca-Tey R, Samon S, Ibrik O, Roda E, Gonzalez JC, Viladoms J, Malindretos P, Bamidis P, Liaskos C, Papagiannis A, Vrochides D, Frantzidis C, Sarafidis P, Lasaridis A, Chryssogonidis I, Nikolaidis P, Ibeas J, Vallespin J, Fortuno JR, Merino J, Rodriguez-Jornet A, Branera J, Grau C, Granados I, Mateos A, Jimeno V, Perndreu J, Moya C, Rivera J, Falco J, Gimenez A, Garcia M, Moyses Neto M, Ferreira V, Martinez R, Tercariol CAS, Lima DAFS, Figueiredo JFC, Costa JAC, Alayoud A, Hamzi A, Akhmouch I, Aatif T, Oualim Z, Jankovic A, Ilic M, Damjanovic T, Djuric Z, Popovic J, Adam J, Dimkovic N. Vascular access. Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.39] [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: 11/12/2022] Open
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Klein DE, Freitas L, Da Cunha M. Self-incompatibility in a distylous species of Rubiaceae: is there a single incompatibility response of the morphs? ACTA ACUST UNITED AC 2009; 22:121-31. [DOI: 10.1007/s00497-009-0097-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2008] [Accepted: 05/02/2009] [Indexed: 11/29/2022]
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Areia A, Galvão A, Pais MSJ, Freitas L, Moura P. Outcome of pregnancy in renal allograft recipients. Arch Gynecol Obstet 2008; 279:273-7. [DOI: 10.1007/s00404-008-0711-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2008] [Accepted: 06/03/2008] [Indexed: 11/28/2022]
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Abstract
AIMS To investigate the presence and distribution of the protein maspin in carcinoma ex pleomorphic adenoma (CXPA). METHODS Maspin expression was studied by means of immunohistochemistry in 16 cases of CXPA, using the labelled polymer method. RESULTS According to the extent of invasion, the tumours were subdivided into: intracapsular (five cases), minimally invasive (four cases), and invasive (seven cases). Twelve patients had carcinoma with only epithelial differentiation, whereas four had a malignant myoepithelial component. Non-luminal cells in the duct-like structures of the remnant pleomorphic adenoma were strongly positive for maspin, whereas only a few luminal cells were immunopositive. A few positive cells were seen in the frequent hypocellular and hyalinised areas. Maspin was abundantly expressed, mainly in non-luminal cells, in transitional areas of CXPA with only epithelial differentiation. In frankly carcinomatous areas there was a gradual decrease in maspin expression. Almost all cells were maspin positive in CXPA with a myoepithelial component. When present, luminal cells were in general negative for maspin. CONCLUSIONS When only epithelial cells undergo malignant transformation, maspin expression is gradually lost. In cases with a myoepithelial component, maspin expression is high, and this might be related to the tumour suppressor activity attributed to this cell.
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Affiliation(s)
- M T Martins
- Department of Oral Pathology, School of Dentistry, University of São Paulo, 05508-900 São Paulo, SP, Brazil.
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Altemani A, Martins MT, Freitas L, Soares F, Araújo NS, Araújo VC. Carcinoma ex pleomorphic adenoma (CXPA): immunoprofile of the cells involved in carcinomatous progression. Histopathology 2005; 46:635-41. [PMID: 15910594 DOI: 10.1111/j.1365-2559.2005.02157.x] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
AIMS To characterize the cellular component in pleomorphic adenoma (PA) that undergoes malignant transformation in carcinoma ex pleomorphic adenoma (CXPA). METHODS AND RESULTS A panel of antibodies against cytoskeletal proteins was applied in 16 cases of CXPA: intracapsular carcinoma (five cases), minimally invasive (four cases) and frankly invasive (seven cases). The CXPAs were classified into two main groups according to their predominant cellular component as detected by the panel of antibodies: (i) carcinomas with only epithelial differentiation (75% of the cases), and (ii) carcinomas with a myoepithelial component (25%). CXPA with only epithelial differentiation showed two types of malignant areas in the part of the tumour that was confined by the PA capsule: (i) intraductal carcinoma areas characterized by ductal structures containing both benign myoepithelial cells positive for alpha-smooth muscle actin (alpha-SMA), vimentin and cytokeratin (CK)14 and proliferating atypical luminal cells reactive for CK7, CK8 and CK19, and (ii) carcinoma areas composed only of epithelial cells reactive for CK7, CK8 and CK19. In the latter, the cells presented morphological and immunohistochemical characteristics similar to those found in areas of invasive carcinoma outside the PA capsule. CXPAs with a myoepithelial component were composed mainly or exclusively of cells that expressed vimentin and alpha-SMA. In this group, ductal structures reminiscent of PA filled by malignant cells were not identified. CONCLUSION Most CXPAs consist only of epithelial cells that have an immunoprofile comparable to ductal luminal cells of PA. These malignant luminal cells arise in the duct-like structures as intraductal carcinoma and probably only at this early stage of development should the lesion be considered as a non-invasive carcinoma.
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Affiliation(s)
- A Altemani
- Department of Oral Pathology (MTM, NSA), School of Dentistry, University of São Paulo, São Paulo, Brazil
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Mota A, Figueiredo A, Macário F, Cunha FX, Freitas L, Parada B, Bastos C, Furtado L. Risk factors for chronic graft dysfunction in 918 renal transplants. Transplant Proc 2003; 35:1064-5. [PMID: 12947857 DOI: 10.1016/s0041-1345(03)00307-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- A Mota
- Department of Urology and Transplantation, Coimbra University Hospital, 3049 Coimbra, Portugal
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41
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Bastos M, Baptista C, Campos MV, Alves R, Freitas L, Bastos C, Leitão P, Lemos M, Mota A, Furtado L, Carvalheiro M. Kidney transplantation and diabetes: posttransplantation malignancy. Transplant Proc 2003; 35:1098-9. [PMID: 12947874 DOI: 10.1016/s0041-1345(03)00324-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- M Bastos
- Departments of Endocrinologia and Diabetes, Hospitais da Universidade de Coimbra, Praceta Mota Pinto, 3000-075 Coimbra, Portugal
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Sá H, Freitas L, Mota A, Cunha F, Marques A. Primary antiphospholipid syndrome presented by total infarction of right kidney with nephrotic syndrome. Clin Nephrol 1999; 52:56-60. [PMID: 10442498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023] Open
Abstract
We report the case of a young woman with primary antiphospholipid syndrome (APS), which presented with acute renal failure, hypoproteinemia, hypoalbuminemia and nephrotic proteinuria. Investigations showed total infarction of right kidney by extensive arterial and vein thrombosis and presence of anticardiolipin antibodies IgG isotype (anti-beta2-glycoprotein I-positive). She was submitted to right nefrectomy and initiated anticoagulant therapy. After nefrectomy, the postoperative period was marked by the development of arterial hypertension and persistence of nephrotic syndrome. Hypertension was treated with antihypertensive drugs (IECA, beta-blocker and calcium antagonist). As the nephrotic syndrome persisted despite anticoagulant and antihypertensive therapy, the patient was treated with oral corticosteroids. Her renal function improved, hypoproteinemia and hypoalbuminemia corrected to normal values and proteinuria decreased to subnephrotic value. We discuss the unusual presentation of this case of primary antiphospholipid syndrome with total unilateral renal thrombosis and nephrotic syndrome that respond to anticoagulant, antihypertensive and corticosteroid therapy.
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Affiliation(s)
- H Sá
- Nephrology Department, Hospitais da Universidade de Coimbra, Portugal
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Affiliation(s)
- A Paiva
- Serviço de Nefrologia, Hospitais da Universidade de Coimbra, Portugal
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Macário F, Freitas L, Correia J, Campos M, Marques A. Nephrotic syndrome after recombinant hepatitis B vaccine. Clin Nephrol 1995; 43:349. [PMID: 7634556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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45
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Paraná R, Cotrim HP, Motta E, Carneiro A, Freitas L, Lyra LG. [Hepatitis B virus markers in peripheral blood mononuclear cells]. Arq Gastroenterol 1992; 29:122-7. [PMID: 1340746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Recent studies have shown tropism of the hepatitis B virus (HBV) by peripheral blood mononuclear cells (PBMC). The consequences of this phenomenon and their clinical use are not yet clear, however. Seventy-nine patients were studied between March 1989 and October 1990. Sixty-nine patients had chronic liver disease with histological evaluations, and 10 were vaccinated for HBV. The following markers were determined: serum: HBsAg, HBeAg, anti-HBe, antitotal-HBc, anti-HBs, anti-HCV, HBV-DNA; lysated PMBC cells: HBsAg, HBeAg. Hepatic tissue: HBsAg, HBcAg. Four groups were formed according to serology. Group I--positive HBsAg patients (n = 25) HBsAg was observed in the lysated of PBMC in 19 (76%) of the patients. HBeAg in PBMC was detected in 8 (32%), all of them showed evidence of viral replication (presence of HBcAg and/or HBV-DNA in the serum HBcAg in the tissue). Group II--antitotal HBc/anti-HBs positive (n = 14), HBsAg in PBMC was found in 5 (36%) and HBeAg in 1 (7.0%). In this patient replication markers in the serum and in the tissue (HBV-DNA, HBcAg) was also present. Three patients out of 9 anti-HBs positive had HBsAg in PBMC. Group III--seronegative patients for HBV. HBsAg was present in PBMC in 2 (6.6%) of the patients, but was absent in all of them. There was concomitant presence of HBsAg in MN and the hepatic tissue in 1 patient. Replication markers were not observed in the group. Group IV--10 asymptomatic individuals vaccinated for HBV. Except anti-HBs in serum, no other HBV marker could be identified in serum or in PBMC.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- R Paraná
- Serviço de Gastro-Hepatologia, Hospital Universitário Prof. Edgard Santos, Universidade Federal da Bahia, Fiocruz-UFBa
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Freitas L, Do Carmo G, Caldeira L, Farto e Abreu J, Lélis M, Doroana M. [Emphysematous cholecystitis]. ACTA MEDICA PORT 1992; 5:453-5. [PMID: 1442198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Emphysematous cholecystitis (EC) is a rare and dramatic disease that requires prompt therapeutic procedures. The authors report a case of a 70-year-old-woman, admitted to the Intensive Care Unit for Infectious Diseases of the Santa Maria Hospital, with the diagnosis of EC. The literature on EC is also reviewed.
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Affiliation(s)
- L Freitas
- Serviço de Doenças Infecciosas, Hospital de Santa Maria
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47
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Freitas L, Botas J, Fernandes V, Boaventura JL, Ferreira ML. [Sarcoidosis as a cause of febrile++ syndrome of unknown origin. Retrospective study of 8 cases]. ACTA MEDICA PORT 1992; 5:319-22. [PMID: 1414471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The authors report the results of a retrospective study of patients admitted to the Department of Infectious Diseases of Santa Maria Hospital with the diagnosis of sarcoidosis, from June 1982 to August 1991. Seven out of eight patients, were admitted due to fever of unknown origin. The results are discussed and the literature on sarcoidosis is also reviewed.
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Affiliation(s)
- L Freitas
- Serviço de Doenças Infecciosas, Hospital de Santa Maria, Lisboa
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Lélis M, do Carmo G, Caldeira L, Abreu J, Freitas L, Doroana M. [Febrile coma and disseminated intravascular coagulation following heat stroke]. ACTA MEDICA PORT 1992; 5:215-8. [PMID: 1605073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A clinical case that occurred in a 42 years old female and which fulfils the diagnostic criteria for the entity described as Heat Stroke is presented. In this case, besides the usual manifestations of hyperpyrexia without sweating along with consciousness disorders, features of consumptive coagulopathy, rhabdomyolysis and well marked laboratory liver dysfunction have also been found. The severity of this situation and its less common occurrence in temperate climates, together with the uncertainty in establishing the diagnosis, namely when infection is suspected--in the present case the initial diagnosis was Sepsis, which led to patient's admission in an infectious diseases intensive care unit--motivate the authors to make this report. Furthermore, they consider this case to be a good example of the varied clinical and laboratory manifestations and possible severe complications that Heat Stroke may display.
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Affiliation(s)
- M Lélis
- Serviço de Doenças Infecto-Contagiosas, Hospital de Santa Maria, Lisboa
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Saarmann L, Freitas L, Rapps J, Riegel B. The relationship of education to critical thinking ability and values among nurses: socialization into professional nursing. J Prof Nurs 1992; 8:26-34. [PMID: 1573111 DOI: 10.1016/8755-7223(92)90114-e] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Exposure to faculty is assumed to positively influence critical thinking ability and professional values; therefore, faculty must be assumed to be superior in these characteristics. As a first step toward testing these assumptions, this study used a cross-sectional survey technique to compare critical thinking ability and values in ADN-prepared (n = 32) and BSN-prepared (n = 32) registered nurses, nursing faculty (n = 32), and sophomore college students (n = 32) beginning a baccalaureate degree program in nursing. The critical thinking ability of faculty was not significantly higher than that of sophomore nursing students when the influence of age was controlled statistically. The values of all three groups of nurses were strikingly similar, although faculty valued achievement most highly (P = .0001), while sophomore students valued goal orientation most highly (P = .001). All subjects valued support highly, but only sophomore students valued benevolence highly.
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Affiliation(s)
- L Saarmann
- School of Nursing, San Diego State University, CA 92182-0254
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Abstract
This article traces the evolution of the development and the refinement of the professional code from concerns about the ethical conduct of nurses to its present state as a professional code for all nurses. The importance and the relationship of the Ethics Committee of the American Nurses' Association (ANA) to the development of the code and other ANA programs and structural units is also presented. The recognized need for a code of ethics to establish nursing as a profession has been present throughout the evolution of the professional nursing organization. A distinction between ethical conduct of nurses and a code of ethics for professional nurses has been made by nursing leaders. The code has been refined to reflect nursing's changing relationship to society and the societal concerns of the times.
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Affiliation(s)
- L Freitas
- School of Nursing, San Diego State University, CA
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