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Jakovac CC, Meave JA, Bongers F, Letcher SG, Dupuy JM, Piotto D, Rozendaal DMA, Peña-Claros M, Craven D, Santos BA, Siminski A, Fantini AC, Rodrigues AC, Hernández-Jaramillo A, Idárraga A, Junqueira AB, Zambrano AMA, de Jong BHJ, Pinho BX, Finegan B, Castellano-Castro C, Zambiazi DC, Dent DH, García DH, Kennard D, Delgado D, Broadbent EN, Ortiz-Malavassi E, Pérez-García EA, Lebrija-Trejos E, Berenguer E, Marín-Spiotta E, Alvarez-Davila E, de Sá Sampaio EV, Melo F, Elias F, França F, Oberleitner F, Mora F, Williamson GB, Colletta GD, Cabral GAL, Derroire G, Fernandes GW, van der Wal H, Teixeira HM, Vester HFM, García H, Vieira ICG, Jiménez-Montoya J, de Almeida-Cortez JS, Hall JS, Chave J, Zimmerman JK, Nieto JE, Ferreira J, Rodríguez-Velázquez J, Ruíz J, Barlow J, Aguilar-Cano J, Hernández-Stefanoni JL, Engel J, Becknell JM, Zanini K, Lohbeck M, Tabarelli M, Romero-Romero MA, Uriarte M, Veloso MDM, Espírito-Santo MM, van der Sande MT, van Breugel M, Martínez-Ramos M, Schwartz NB, Norden N, Pérez-Cárdenas N, González-Valdivia N, Petronelli P, Balvanera P, Massoca P, Brancalion PHS, Villa PM, Hietz P, Ostertag R, López-Camacho R, César RG, Mesquita R, Chazdon RL, Muñoz R, DeWalt SJ, Müller SC, Durán SM, Martins SV, Ochoa-Gaona S, Rodríguez-Buritica S, Aide TM, Bentos TV, de S Moreno V, Granda V, Thomas W, Silver WL, Nunes YRF, Poorter L. Strong floristic distinctiveness across Neotropical successional forests. Sci Adv 2022; 8:eabn1767. [PMID: 35776785 PMCID: PMC10883372 DOI: 10.1126/sciadv.abn1767] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Forests that regrow naturally on abandoned fields are important for restoring biodiversity and ecosystem services, but can they also preserve the distinct regional tree floras? Using the floristic composition of 1215 early successional forests (≤20 years) in 75 human-modified landscapes across the Neotropic realm, we identified 14 distinct floristic groups, with a between-group dissimilarity of 0.97. Floristic groups were associated with location, bioregions, soil pH, temperature seasonality, and water availability. Hence, there is large continental-scale variation in the species composition of early successional forests, which is mainly associated with biogeographic and environmental factors but not with human disturbance indicators. This floristic distinctiveness is partially driven by regionally restricted species belonging to widespread genera. Early secondary forests contribute therefore to restoring and conserving the distinctiveness of bioregions across the Neotropical realm, and forest restoration initiatives should use local species to assure that these distinct floras are maintained.
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Affiliation(s)
- Catarina C Jakovac
- Departamento de Fitotecnia, Centro de Ciências Agrárias, Universidade Federal de Santa Catarina, Rod. Admar Gonzaga, 1346, 88034-000 Florianópolis, Brazil
- Forest Ecology and Forest Management Group, Wageningen University & Research, P.O. Box 47, 6700 AA Wageningen, Netherlands
| | - Jorge A Meave
- Departamento de Ecología y Recursos Naturales, Facultad de Ciencias, Universidad Nacional Autónoma de México, Coyoacán, Mexico City, CP 04510, México
| | - Frans Bongers
- Forest Ecology and Forest Management Group, Wageningen University & Research, P.O. Box 47, 6700 AA Wageningen, Netherlands
| | - Susan G Letcher
- College of the Atlantic, 105 Eden St., Bar Harbor, ME 04609, USA
| | - Juan Manuel Dupuy
- Centro de Investigación Científica de Yucatán A.C., Unidad de Recursos Naturales, Calle 43 # 130 x 32 y 34, Chuburná de Hidalgo, C.P. 97205, Mérida, Yucatán, México
| | - Daniel Piotto
- Centro de Formação em Ciências Agroflorestais, Universidade Federal do Sul da Bahia, Itabuna-BA, 45613-204, Brazil
| | - Danaë M A Rozendaal
- Centre for Crop Systems Analysis, Wageningen University & Research, Wageningen, Netherlands
- Plant Production Systems Group, Wageningen University & Research, Wageningen, Netherlands
| | - Marielos Peña-Claros
- Forest Ecology and Forest Management Group, Wageningen University & Research, P.O. Box 47, 6700 AA Wageningen, Netherlands
| | - Dylan Craven
- Centro de Modelacion y Monitoreo de Ecosistemas, Universidad Mayor, Jose Toribio Medina 29, Santiago, Chile
| | | | - Alexandre Siminski
- Postgraduate Program in Agricultural and Natural Ecosystems-PPGEAN, Universidade Federal de Santa Catarina, Curitibanos-SC, Brazil
| | - Alfredo C Fantini
- Departamento de Fitotecnia, Centro de Ciências Agrárias, Universidade Federal de Santa Catarina, Rod. Admar Gonzaga, 1346, 88034-000 Florianópolis, Brazil
| | - Alice C Rodrigues
- Associação para a Conservação da Biodiversidade - PROBIODIVERSA-BRASIL, Viçosa, MG, Brazil
- Botany Graduate Program, Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900 Viçosa, Brazil
| | | | - Alvaro Idárraga
- Fundación Jardín Botánico de Medellín, Herbario JAUM, Medellín, Colombia
| | - André B Junqueira
- Institut de Ciència i Tecnologia Ambientals, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | | | - Ben H J de Jong
- Department of Sustainability Science, El Colegio de la Frontera Sur, Av. Rancho Polígono 2-A, Ciudad Industrial, Lerma 24500, Campeche, Mexico
| | - Bruno Ximenes Pinho
- Departamento de Botânica, Universidade Federal de Pernambuco, Pernambuco, CEP 50670-901, Brazil
- AMAP, Univ Montpellier, INRAe, CIRAD, CNRS, IRD, Montpellier, France
| | - Bryan Finegan
- CATIE-Centro Agronómico Tropical de Investigación y Enseñanza, Turrialba, Costa Rica
| | - Carolina Castellano-Castro
- Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, 16-20 Avenida Circunvalar, Bogotá, Colombia
| | - Daisy Christiane Zambiazi
- Departamento de Fitotecnia, Centro de Ciências Agrárias, Universidade Federal de Santa Catarina, Rod. Admar Gonzaga, 1346, 88034-000 Florianópolis, Brazil
| | - Daisy H Dent
- Biological and Environmental Sciences, University of Stirling, Stirling FK9 4LA, UK
- Max Planck Institute for Animal Behavior, Konstanz, Germany
- Smithsonian Tropical Research Institute, Roosevelt Ave. 401 Balboa, Ancon, Panama
| | - Daniel Hernán García
- Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, 16-20 Avenida Circunvalar, Bogotá, Colombia
| | - Deborah Kennard
- Department of Physical and Environmental Sciences, Colorado Mesa University, 1100 North Avenue, Grand Junction, CO 81501, USA
| | - Diego Delgado
- CATIE-Centro Agronómico Tropical de Investigación y Enseñanza, Turrialba, Costa Rica
| | - Eben N Broadbent
- Spatial Ecology and Conservation Lab, School of Forest Resources and Conservation, University of Florida, Gainesville, FL 32611, USA
| | - Edgar Ortiz-Malavassi
- Instituto Tecnológico de Costa Rica, Escuela de Ingeniería Forestal, Cartago, Costa Rica
| | - Eduardo A Pérez-García
- Departamento de Ecología y Recursos Naturales, Facultad de Ciencias, Universidad Nacional Autónoma de México, Coyoacán, Mexico City, CP 04510, México
| | - Edwin Lebrija-Trejos
- Department of Biology and the Environment, Faculty of Natural Sciences, University of Haifa-Oranim, Tivon 36006, Israel
| | - Erika Berenguer
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, OX1 3QY Oxford, UK
- Lancaster Environment Centre, Lancaster University, LA1 4YQ Lancaster, UK
| | - Erika Marín-Spiotta
- Department of Geography, University of Wisconsin-Madison, 550 North Park St, Madison, WI 53706, USA
| | | | - Everardo Valadares de Sá Sampaio
- Departamento de Energia Nuclear-CTG, Universidade Federal de Pernambuco, Av. Prof. Luis Freire 1000, 50740-540 Pernambuco, Brazil
| | - Felipe Melo
- Departamento de Botânica, Universidade Federal de Pernambuco, Pernambuco, CEP 50670-901, Brazil
| | - Fernando Elias
- Universidade Federal do Pará, Instituto de Ciências Biológicas, Programa de Pós-Graduação em Ecologia, Pará, Brazil
| | - Filipe França
- School of Biological Sciences, University of Bristol, 24 Tyndall Ave, Bristol BS8 1TQ, UK
| | - Florian Oberleitner
- Department of Ecology, University of Innsbruck, Sternwartestraße 15, 6020 Innsbruck, Austria
| | - Francisco Mora
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, CP 58089 Morelia, Michoacán, México
| | - G Bruce Williamson
- Biological Dynamics of Forest Fragments Project, Environmental Dynamics Research Coordination, Instituto Nacional de Pesquisas da Amazonia, Manaus, Amazonas CEP 69067-375, Brazil
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803-1705, USA
| | - Gabriel Dalla Colletta
- Institute of Biology, University of Campinas-UNICAMP, Cidade Universitária Zeferino, Vaz-Barão Geraldo, Campinas-SP 13083-970, Brazil
| | - George A L Cabral
- Departamento de Botânica, Universidade Federal de Pernambuco, Pernambuco, CEP 50670-901, Brazil
| | - Géraldine Derroire
- CIRAD, UMR EcoFoG (AgroParistech, CNRS, Inrae, Université des Antilles, Université de la Guyane), Campus Agronomique, Kourou, French Guiana
| | - Geraldo Wilson Fernandes
- Ecologia Evolutiva e Biodiversidade/DBG, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Hans van der Wal
- Departamento de Agricultura, Sociedad y Ambiente, El Colegio de la Frontera Sur - Unidad Villahermosa, 86280 Centro, Tabasco, México
| | | | - Henricus F M Vester
- Institute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, P.O. Box 94248, 1090 GE Amsterdam, Netherlands
| | - Hernando García
- Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, 16-20 Avenida Circunvalar, Bogotá, Colombia
| | - Ima C G Vieira
- Museu Paraense Emilio Goeldi, C.P. 399, CEP 66040-170 Belém, Pará, Brazil
| | | | | | - Jefferson S Hall
- SI ForestGEO, Smithsonian Tropical Research Institute, Roosevelt Ave. 401 Balboa, Ancon, Panama
| | - Jerome Chave
- Laboratoire Evolution et Diversité Biologique, UMR5174, CNRS/Université Paul Sabatier Bâtiment 4R1, 118 Route de Narbonne, F-31062 Toulouse Cedex 9, France
| | - Jess K Zimmerman
- Department of Environmental Sciences, University of Puerto Rico, Río Piedras Campus, San Juan, PR 00936, USA
| | - Jhon Edison Nieto
- Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, 16-20 Avenida Circunvalar, Bogotá, Colombia
| | - Joice Ferreira
- Embrapa Amazônia Oriental, Belém, Pará 66095-903, Brazil
| | - Jorge Rodríguez-Velázquez
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, CP 58089 Morelia, Michoacán, México
| | - Jorge Ruíz
- Programa de Estudios de Posgrado en Geografia, Convenio Universidad Pedagogica y Tecnológica de Colombia-Instituto Geografico Agustin Codazzi, Bogotá, Colombia
| | - Jos Barlow
- Lancaster Environment Centre, Lancaster University, LA1 4YQ Lancaster, UK
| | - José Aguilar-Cano
- Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, 16-20 Avenida Circunvalar, Bogotá, Colombia
| | - José Luis Hernández-Stefanoni
- Centro de Investigación Científica de Yucatán A.C., Unidad de Recursos Naturales, Calle 43 # 130 x 32 y 34, Chuburná de Hidalgo, C.P. 97205, Mérida, Yucatán, México
| | - Julien Engel
- AMAP, IRD, CIRAD, CNRS, Université de Montpellier, INRA, Boulevard de la Lironde, TA A-51/PS2, F-34398 Montpellier Cedex 5, France
| | - Justin M Becknell
- Environmental Studies Program, Colby College, 4000 Mayflower Hill, Waterville, ME 04901, USA
| | - Kátia Zanini
- Departamento de Ecologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 91540-000, Brazil
| | - Madelon Lohbeck
- Forest Ecology and Forest Management Group, Wageningen University & Research, P.O. Box 47, 6700 AA Wageningen, Netherlands
- Centre for International Forestry Research and World Agroforestry (CIFOR-ICRAF), United Nations Avenue, Gigiri, Nairobi, Kenya
| | - Marcelo Tabarelli
- Departamento de Botânica, Universidade Federal de Pernambuco, Pernambuco, CEP 50670-901, Brazil
| | - Marco Antonio Romero-Romero
- Departamento de Ecología y Recursos Naturales, Facultad de Ciencias, Universidad Nacional Autónoma de México, Coyoacán, Mexico City, CP 04510, México
| | - Maria Uriarte
- Department of Ecology, Evolution and Environmental Biology, Columbia University, New York, NY 10027, USA
| | - Maria D M Veloso
- Departamento de Biologia Geral, Universidade Estadual de Montes Claros, Montes Claros, Minas Gerais CEP 39401-089, Brazil
| | - Mário M Espírito-Santo
- Departamento de Biologia Geral, Universidade Estadual de Montes Claros, Montes Claros, Minas Gerais CEP 39401-089, Brazil
| | - Masha T van der Sande
- Forest Ecology and Forest Management Group, Wageningen University & Research, P.O. Box 47, 6700 AA Wageningen, Netherlands
| | - Michiel van Breugel
- Smithsonian Tropical Research Institute, Roosevelt Ave. 401 Balboa, Ancon, Panama
- Yale-NUS College, 16 College Avenue West, Singapore 138610, Singapore
- Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore 117543, Singapore
| | - Miguel Martínez-Ramos
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, CP 58089 Morelia, Michoacán, México
| | - Naomi B Schwartz
- Department of Geography, University of British Columbia, Vancouver, BC V6T 1Z2, Canada
| | - Natalia Norden
- Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, 16-20 Avenida Circunvalar, Bogotá, Colombia
| | - Nathalia Pérez-Cárdenas
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, CP 58089 Morelia, Michoacán, México
- University of Zürich, Department of Geography, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Noel González-Valdivia
- Departamento de Ingenierías, Instituto Tecnológico de Chiná, Tecnológico Nacional de México, Calle 11 s/n entre 22 y 28, Chiná, 24520 Campeche, México
| | - Pascal Petronelli
- CIRAD, UMR EcoFoG (AgroParistech, CNRS, Inrae, Université des Antilles, Université de la Guyane), Campus Agronomique, Kourou, French Guiana
| | - Patricia Balvanera
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, CP 58089 Morelia, Michoacán, México
| | - Paulo Massoca
- Biological Dynamics of Forest Fragments Project, Environmental Dynamics Research Coordination, Instituto Nacional de Pesquisas da Amazonia, Manaus, Amazonas CEP 69067-375, Brazil
| | - Pedro H S Brancalion
- Department of Forest Sciences, "Luiz de Queiroz" College of Agriculture, University of São Paulo, Av. Pádua Dias, 11, 13418-900 Piracicaba, São Paulo, Brazil
| | - Pedro M Villa
- Botany Graduate Program, Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900 Viçosa, Brazil
- Fundación para la Conservación de la Biodiversidad (PROBIODIVERSA), CP 5101 Mérida, Mérida, Venezuela
| | - Peter Hietz
- Institute of Botany, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Rebecca Ostertag
- Department of Biology, University of Hawaii at Hilo, Hilo, HI 96720, USA
| | - René López-Camacho
- Universidad Distrital Francisco José de Caldas, Facultad de Medio Ambiente y Recursos Naturales, Carrera 5 este # 15-82, Bogotá, Colombia
| | - Ricardo G César
- Department of Forest Sciences, "Luiz de Queiroz" College of Agriculture, University of São Paulo, Av. Pádua Dias, 11, 13418-900 Piracicaba, São Paulo, Brazil
| | - Rita Mesquita
- Biological Dynamics of Forest Fragments Project, Environmental Dynamics Research Coordination, Instituto Nacional de Pesquisas da Amazonia, Manaus, Amazonas CEP 69067-375, Brazil
| | - Robin L Chazdon
- Department of Ecology and Evolutionary Biology, University of Connecticut, U-43, 75 North Eagleville Road, Storrs, CT 06269, USA
- Tropical Forests and People Research Centre, University of the Sunshine Coast, Maroochydore DC, QLD 4558, Australia
| | - Rodrigo Muñoz
- Forest Ecology and Forest Management Group, Wageningen University & Research, P.O. Box 47, 6700 AA Wageningen, Netherlands
- Departamento de Ecología y Recursos Naturales, Facultad de Ciencias, Universidad Nacional Autónoma de México, Coyoacán, Mexico City, CP 04510, México
| | - Saara J DeWalt
- Department of Biological Sciences, Clemson University, 132 Long Hall, Clemson, SC 29634, USA
| | - Sandra C Müller
- Departamento de Ecologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 91540-000, Brazil
| | - Sandra M Durán
- Department of Ecology and Evolutionary Biology, University of Minnesota, St. Paul, MN 55455, USA
- Earth and Atmospheric Sciences Department, University of Alberta, Edmonton, AB T6G 2EG, Canada
| | - Sebastião Venâncio Martins
- Laboratório de Restauração Florestal, Departamento de Engenharia Florestal, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
| | - Susana Ochoa-Gaona
- Department of Sustainability Science, El Colegio de la Frontera Sur, Av. Rancho Polígono 2-A, Ciudad Industrial, Lerma 24500, Campeche, Mexico
| | - Susana Rodríguez-Buritica
- Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, 16-20 Avenida Circunvalar, Bogotá, Colombia
| | - T Mitchell Aide
- Department of Biology, University of Puerto Rico, P.O. Box 23360, San Juan, PR 00931-3360, USA
| | - Tony Vizcarra Bentos
- Biological Dynamics of Forest Fragments Project, Environmental Dynamics Research Coordination, Instituto Nacional de Pesquisas da Amazonia, Manaus, Amazonas CEP 69067-375, Brazil
| | - Vanessa de S Moreno
- Department of Forest Sciences, "Luiz de Queiroz" College of Agriculture, University of São Paulo, Av. Pádua Dias, 11, 13418-900 Piracicaba, São Paulo, Brazil
| | - Vanessa Granda
- CATIE-Centro Agronómico Tropical de Investigación y Enseñanza, Turrialba, Costa Rica
| | - Wayt Thomas
- Institute of Systematic Botany, The New York Botanical Garden, 2900 Southern Blvd., Bronx, NY 10458-5126, USA
| | - Whendee L Silver
- Ecosystem Science Division, Department of Environmental Science, Policy, and Management, University of California, Berkeley, Berkeley, CA 94707, USA
| | - Yule R F Nunes
- Departamento de Biologia Geral, Universidade Estadual de Montes Claros, Montes Claros, Minas Gerais CEP 39401-089, Brazil
| | - Lourens Poorter
- Forest Ecology and Forest Management Group, Wageningen University & Research, P.O. Box 47, 6700 AA Wageningen, Netherlands
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Rodrigues AC, Marcusso RMN, Souza DN, Fahl WO, Caporale GMM, Macedo CI, Castilho JG. A comparative study of direct fluorescent antibody, mouse inoculation, and tissue culture infection testing for rabies diagnoses. J Virol Methods 2021; 300:114426. [PMID: 34902461 DOI: 10.1016/j.jviromet.2021.114426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 09/17/2021] [Accepted: 12/09/2021] [Indexed: 11/28/2022]
Abstract
The laboratory diagnosis of rabies is of fundamental importance to the evaluation of suspected cases of rabies virus (RABV) infection. Confirmation of direct fluorescent antibody test (DFAT) results via viral isolation (VI) is recommended, and the mouse inoculation test (MIT) is being replaced by the rabies tissue culture infection (RTCIT) test for ethical reasons. We evaluated 6.514 results from central nervous system (CNS) samples of different animals analyzed at the Pasteur Institute between 2008 and 2016 using the DFAT, RTCIT and MIT techniques and evaluated their concordance, sensitivity, specificity, and accuracy indices. The DFAT technique presented the best sensitivity (93.58 %), specificity (95.90 %), and accuracy (95.67 %) results. The RTCIT values of sensitivity, specificity and accuracy (70.42 %, 86.16 % and 84.62 % respectively) were lower than those of DFAT. The concordance between RTCIT and DFAT was moderate, with a kappa quotient k = 0.341. The MIT values of sensitivity, specificity, and accuracy were 89.58 %, 100 % and 98.97 % respectively. The concordance between MIT and DFAT was substantial, with a k value of 0.720. DFAT, considered the "gold standard", was effective in all animals except horses. Our analyses evidenced that DFAT presents satisfactory results, although RTCIT did not appear favorable as a confirmatory technique.
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Affiliation(s)
- A C Rodrigues
- Pasteur Institute, Av. Paulista 393, CEP 01311-000, São Paulo, SP, Brazil.
| | - R M N Marcusso
- Instituto de Infectologia Emilio Ribas, Av. Dr. Arnaldo 165, CEP 0124-69, São Paulo, SP, Brazil
| | - D N Souza
- Pasteur Institute, Av. Paulista 393, CEP 01311-000, São Paulo, SP, Brazil
| | - W O Fahl
- Pasteur Institute, Av. Paulista 393, CEP 01311-000, São Paulo, SP, Brazil
| | - G M M Caporale
- Pasteur Institute, Av. Paulista 393, CEP 01311-000, São Paulo, SP, Brazil
| | - C I Macedo
- Pasteur Institute, Av. Paulista 393, CEP 01311-000, São Paulo, SP, Brazil
| | - J G Castilho
- Pasteur Institute, Av. Paulista 393, CEP 01311-000, São Paulo, SP, Brazil
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Rodrigues AC, Spagnol AR, Frias FDT, de Mendonça M, Araújo HN, Guimarães D, Silva WJ, Bolin AP, Murata GM, Silveira L. Intramuscular Injection of miR-1 Reduces Insulin Resistance in Obese Mice. Front Physiol 2021; 12:676265. [PMID: 34295259 PMCID: PMC8290840 DOI: 10.3389/fphys.2021.676265] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 06/11/2021] [Indexed: 01/02/2023] Open
Abstract
The role of microRNAs in metabolic diseases has been recognized and modulation of them could be a promising strategy to treat obesity and obesity-related diseases. The major purpose of this study was to test the hypothesis that intramuscular miR-1 precursor replacement therapy could improve metabolic parameters of mice fed a high-fat diet. To this end, we first injected miR-1 precursor intramuscularly in high-fat diet-fed mice and evaluated glucose tolerance, insulin sensitivity, and adiposity. miR-1-treated mice did not lose weight but had improved insulin sensitivity measured by insulin tolerance test. Next, using an in vitro model of insulin resistance by treating C2C12 cells with palmitic acid (PA), we overexpressed miR-1 and measured p-Akt content and the transcription levels of a protein related to fatty acid oxidation. We found that miR-1 could not restore insulin sensitivity in C2C12 cells, as indicated by p-Akt levels and that miR-1 increased expression of Pgc1a and Cpt1b in PA-treated cells, suggesting a possible role of miR-1 in mitochondrial respiration. Finally, we analyzed mitochondrial oxygen consumption in primary skeletal muscle cells treated with PA and transfected with or without miR-1 mimic. PA-treated cells showed reduced basal respiration, oxygen consumption rate-linked ATP production, maximal and spare capacity, and miR-1 overexpression could prevent impairments in mitochondrial respiration. Our data suggest a role of miR-1 in systemic insulin sensitivity and a new function of miR-1 in regulating mitochondrial respiration in skeletal muscle.
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Affiliation(s)
- Alice C Rodrigues
- Department of Pharmacology, Instituto de Ciencias Biomedicas, Universidade de São Paulo, São Paulo, Brazil
| | - Alexandre R Spagnol
- Department of Pharmacology, Instituto de Ciencias Biomedicas, Universidade de São Paulo, São Paulo, Brazil
| | - Flávia de Toledo Frias
- Department of Pharmacology, Instituto de Ciencias Biomedicas, Universidade de São Paulo, São Paulo, Brazil
| | - Mariana de Mendonça
- Department of Pharmacology, Instituto de Ciencias Biomedicas, Universidade de São Paulo, São Paulo, Brazil
| | - Hygor N Araújo
- Obesity and Comorbidities Research Center (OCRC), Campinas, Brazil.,Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Dimitrius Guimarães
- Obesity and Comorbidities Research Center (OCRC), Campinas, Brazil.,Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
| | - William J Silva
- Department of Anatomy, Instituto de Ciencias Biomedicas, Universidade de São Paulo, São Paulo, Brazil
| | - Anaysa Paola Bolin
- Department of Pharmacology, Instituto de Ciencias Biomedicas, Universidade de São Paulo, São Paulo, Brazil
| | - Gilson Masahiro Murata
- Department of Medical Clinics, Faculty of Medicine, University of São Paulo, São Paulo, Brazil
| | - Leonardo Silveira
- Obesity and Comorbidities Research Center (OCRC), Campinas, Brazil.,Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
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de Oliveira Silva T, Lino CA, Buzatto VC, Asprino PF, Lu YW, Lima VM, Fonseca RIB, Jensen L, Murata GM, Filho SV, Ribeiro MAC, Donato JJ, Ferreira JCB, Rodrigues AC, Irigoyen MC, Barreto-Chaves MLM, Huang ZP, Galante PAF, Wang DZ, Diniz GP. Deletion of miRNA-22 Induces Cardiac Hypertrophy in Females but Attenuates Obesogenic Diet-Mediated Metabolic Disorders. Cell Physiol Biochem 2021; 54:1199-1217. [PMID: 33252886 DOI: 10.33594/000000309] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/20/2020] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND/AIMS Obesity is a risk factor associated with cardiometabolic complications. Recently, we reported that miRNA-22 deletion attenuated high-fat diet-induced adiposity and prevented dyslipidemia without affecting cardiac hypertrophy in male mice. In this study, we examined the impact of miRNA-22 in obesogenic diet-induced cardiovascular and metabolic disorders in females. METHODS Wild type (WT) and miRNA-22 knockout (miRNA-22 KO) females were fed a control or an obesogenic diet. Body weight gain, adiposity, glucose tolerance, insulin tolerance, and plasma levels of total cholesterol and triglycerides were measured. Cardiac and white adipose tissue remodeling was assessed by histological analyses. Echocardiography was used to evaluate cardiac function and morphology. RNA-sequencing analysis was employed to characterize mRNA expression profiles in female hearts. RESULTS Loss of miRNA-22 attenuated body weight gain, adiposity, and prevented obesogenic diet-induced insulin resistance and dyslipidemia in females. WT obese females developed cardiac hypertrophy. Interestingly, miRNA-22 KO females displayed cardiac hypertrophy without left ventricular dysfunction and myocardial fibrosis. Both miRNA-22 deletion and obesogenic diet changed mRNA expression profiles in female hearts. Enrichment analysis revealed that genes associated with regulation of the force of heart contraction, protein folding and fatty acid oxidation were enriched in hearts of WT obese females. In addition, genes related to thyroid hormone responses, heart growth and PI3K signaling were enriched in hearts of miRNA-22 KO females. Interestingly, miRNA-22 KO obese females exhibited reduced mRNA levels of Yap1, Egfr and Tgfbr1 compared to their respective controls. CONCLUSION This study reveals that miRNA-22 deletion induces cardiac hypertrophy in females without affecting myocardial function. In addition, our findings suggest miRNA-22 as a potential therapeutic target to treat obesity-related metabolic disorders in females.
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Affiliation(s)
| | - Caroline A Lino
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Vanessa C Buzatto
- Centro de Oncologia Molecular, Hospital Sirio-Libanes, Sao Paulo, Brazil
| | | | - Yao Wei Lu
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Vanessa M Lima
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Renata I B Fonseca
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Leonardo Jensen
- Hypertension Unit, Heart Institute, University of Sao Paulo, Sao Paulo, Brazil
| | - Gilson M Murata
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Sidney V Filho
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Márcio A C Ribeiro
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Jose Jr Donato
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Julio C B Ferreira
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Alice C Rodrigues
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | | | | | - Zhan-Peng Huang
- Center for Translational Medicine, The First Affiliated Hospital, NHC Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | | | - Da-Zhi Wang
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Gabriela P Diniz
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil,
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5
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Los B, Borges JB, Oliveira VF, Freitas RC, Dagli-Hernandez C, Bortolin RH, Gonçalves RM, Faludi AA, Rodrigues AC, Bastos GM, Jannes CE, Pereira AC, Hirata RD, Hirata MH. Functional analysis of PCSK9 3'UTR variants and mRNA-miRNA interactions in patients with familial hypercholesterolemia. Epigenomics 2021; 13:779-791. [PMID: 33899508 DOI: 10.2217/epi-2020-0462] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Aim: Functional analysis of PCSK9 3'UTR variants and mRNA-miRNA interactions were explored in patients with familial hypercholesterolemia (FH). Materials & methods: PCSK9 3'UTR variants were identified by exon-targeted gene sequencing. Functional effects of 3'UTR variants and mRNA-miRNA interactions were analyzed using in silico and in vitro studies in HEK293FT and HepG2 cells. Results: Twelve PCSK9 3'UTR variants were detected in 88 FH patients. c.*75C >T and c.*345C >T disrupted interactions with miR-6875, miR-4721 and miR-564. Transient transfection of the c.*345C >T decreased luciferase activity in HEK293FT cells. miR-4721 and miR-564 mimics reduced PCSK9 expression in HepG2 cells. Conclusion: PCSK9 c.*345C >T has a possible role as loss-of-function variant. miR-4721 and miR-564 downregulate PCSK9 and may be useful to improve lipid profile in FH patients.
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Affiliation(s)
- Bruna Los
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil
| | - Jéssica B Borges
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil.,Laboratory of Molecular Research in Cardiology, Institute Dante Pazzanese of Cardiology, Sao Paulo 04012-909, Brazil
| | - Victor F Oliveira
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil
| | - Renata Cc Freitas
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil
| | - Carolina Dagli-Hernandez
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil
| | - Raul H Bortolin
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil
| | - Rodrigo M Gonçalves
- Medical Clinic Division, Institute Dante Pazzanese of Cardiology, Sao Paulo 04012-909, Brazil
| | - André A Faludi
- Medical Clinic Division, Institute Dante Pazzanese of Cardiology, Sao Paulo 04012-909, Brazil
| | - Alice C Rodrigues
- Department of Pharmacology, University of Sao Paulo Institute of Biomedical Sciences, Sao Paulo 05508-000, Brazil
| | - Gisele M Bastos
- Laboratory of Molecular Research in Cardiology, Institute Dante Pazzanese of Cardiology, Sao Paulo 04012-909, Brazil.,Department of Teaching and Research, Real e Benemerita Associaçao Portuguesa de Beneficiencia, Sao Paulo 01323-001, Brazil
| | - Cinthia E Jannes
- Laboratory of Genetics and Molecular Cardiology,HeartInstitute, University of Sao Paulo, Sao Paulo 05403-900 , Brazil
| | - Alexandre C Pereira
- Laboratory of Genetics and Molecular Cardiology,HeartInstitute, University of Sao Paulo, Sao Paulo 05403-900 , Brazil
| | - Rosario Dc Hirata
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil
| | - Mario H Hirata
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil
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6
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Masi LN, Lotufo PA, Ferreira FM, Rodrigues AC, Serdan TDA, Souza‐Siqueira T, Braga AA, Saldarriaga MEG, Alba‐Loureiro TC, Borges FT, Cury DP, Hirata MH, Gorjão R, Pithon‐Curi TC, Lottenberg SA, Fedeli LMG, Nakaya HTI, Bensenor IJM, Curi R, Hirabara SM. Profiling plasma-extracellular vesicle proteins and microRNAs in diabetes onset in middle-aged male participants in the ELSA-Brasil study. Physiol Rep 2021; 9:e14731. [PMID: 33587339 PMCID: PMC7883809 DOI: 10.14814/phy2.14731] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/29/2020] [Accepted: 01/04/2021] [Indexed: 12/15/2022] Open
Abstract
We measured plasma-derived extracellular vesicle (EV) proteins and their microRNA (miRNA) cargos in normoglycemic (NG), glucose intolerant (GI), and newly diagnosed diabetes mellitus (DM) in middle-aged male participants of the Brazilian Longitudinal Study of Adult Health (ELSA-Brazil). Mass spectrometry revealed decreased IGHG-1 and increased ITIH2 protein levels in the GI group compared with that in the NG group and higher serotransferrin in EVs in the DM group than in those in the NG and GI groups. The GI group also showed increased serum ferritin levels, as evaluated by biochemical analysis, compared with those in both groups. Seventeen miRNAs were differentially expressed (DEMiRs) in the plasma EVs of the three groups. DM patients showed upregulation of miR-141-3p and downregulation of miR-324-5p and -376c-3p compared with the NG and GI groups. The DM and GI groups showed increased miR-26b-5p expression compared with that in the NG group. The DM group showed decreased miR-374b-5p levels compared with those in the GI group and higher concentrations than those in the NG group. Thus, three EV proteins and five DEMiR cargos have potential prognostic importance for diabetic complications mainly associated with the immune function and iron status of GI and DM patients.
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Affiliation(s)
- Laureane N. Masi
- Interdisciplinary Post‐graduate Program in Health SciencesCruzeiro do Sul UniversitySao PauloBrazil
| | - Paulo A. Lotufo
- Center for Clinical and Epidemiologic ResearchUniversity of Sao PauloSao PauloBrazil
| | | | - Alice C. Rodrigues
- Department of PharmacologyInstitute of Biomedical SciencesUniversity of Sao PauloSao PauloBrazil
| | - Tamires D. A. Serdan
- Interdisciplinary Post‐graduate Program in Health SciencesCruzeiro do Sul UniversitySao PauloBrazil
| | - Talita Souza‐Siqueira
- Interdisciplinary Post‐graduate Program in Health SciencesCruzeiro do Sul UniversitySao PauloBrazil
| | - Aécio A. Braga
- Faculty of Pharmaceutical SciencesUniversity of São PauloSao PauloBrazil
| | | | - Tatiana C. Alba‐Loureiro
- Interdisciplinary Post‐graduate Program in Health SciencesCruzeiro do Sul UniversitySao PauloBrazil
| | - Fernanda T. Borges
- Interdisciplinary Post‐graduate Program in Health SciencesCruzeiro do Sul UniversitySao PauloBrazil
| | - Diego P. Cury
- Department of AnatomyInstitute of Biomedical SciencesUniversity of Sao PauloSao PauloBrazil
| | - Mario H. Hirata
- Faculty of Pharmaceutical SciencesUniversity of São PauloSao PauloBrazil
| | - Renata Gorjão
- Interdisciplinary Post‐graduate Program in Health SciencesCruzeiro do Sul UniversitySao PauloBrazil
| | - Tania C. Pithon‐Curi
- Interdisciplinary Post‐graduate Program in Health SciencesCruzeiro do Sul UniversitySao PauloBrazil
| | - Simão A. Lottenberg
- Faculty of MedicineUniversity of Sao PauloHospital das ClínicasSao PauloBrazil
| | - Ligia M. G. Fedeli
- Center for Clinical and Epidemiologic ResearchUniversity of Sao PauloSao PauloBrazil
| | - Helder T. I. Nakaya
- Department of PharmacologyInstitute of Biomedical SciencesUniversity of Sao PauloSao PauloBrazil
| | | | - Rui Curi
- Interdisciplinary Post‐graduate Program in Health SciencesCruzeiro do Sul UniversitySao PauloBrazil
- Butantan InstituteSão PauloBrazil
| | - Sandro M. Hirabara
- Interdisciplinary Post‐graduate Program in Health SciencesCruzeiro do Sul UniversitySao PauloBrazil
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7
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Falquetto B, Thieme K, Malta MB, e Rocha KC, Tuppy M, Potje SR, Antoniali C, Rodrigues AC, Munhoz CD, Moreira TS, Takakura AC. Oxidative stress in the medullary respiratory neurons contributes to respiratory dysfunction in the 6‐OHDA model of Parkinson's disease. J Physiol 2020; 598:5271-5293. [DOI: 10.1113/jp279791] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 08/14/2020] [Indexed: 11/08/2022] Open
Affiliation(s)
- Bárbara Falquetto
- Department of Pharmacology Institute de Ciencias Biomedicas Universidade de Sao Paulo São Paulo SP 05508‐000 Brazil
| | - Karina Thieme
- Department of Physiology and Biophysics Instituto de Ciencias Biomedicas Universidade de Sao Paulo São Paulo SP 05508‐000 Brazil
| | - Marília B. Malta
- Department of Pharmacology Institute de Ciencias Biomedicas Universidade de Sao Paulo São Paulo SP 05508‐000 Brazil
| | - Karina C. e Rocha
- Department of Pharmacology Institute de Ciencias Biomedicas Universidade de Sao Paulo São Paulo SP 05508‐000 Brazil
| | - Marina Tuppy
- Department of Pharmacology Institute de Ciencias Biomedicas Universidade de Sao Paulo São Paulo SP 05508‐000 Brazil
| | - Simone R. Potje
- Department of Basic Sciences School of Dentistry São Paulo State University (UNESP) Araçatuba SP 16015‐050 Brazil
| | - Cristina Antoniali
- Department of Basic Sciences School of Dentistry São Paulo State University (UNESP) Araçatuba SP 16015‐050 Brazil
| | - Alice C. Rodrigues
- Department of Pharmacology Institute de Ciencias Biomedicas Universidade de Sao Paulo São Paulo SP 05508‐000 Brazil
| | - Carolina D. Munhoz
- Department of Pharmacology Institute de Ciencias Biomedicas Universidade de Sao Paulo São Paulo SP 05508‐000 Brazil
| | - Thiago S. Moreira
- Department of Physiology and Biophysics Instituto de Ciencias Biomedicas Universidade de Sao Paulo São Paulo SP 05508‐000 Brazil
| | - Ana C. Takakura
- Department of Pharmacology Institute de Ciencias Biomedicas Universidade de Sao Paulo São Paulo SP 05508‐000 Brazil
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8
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Pereira BM, Thieme K, de Araújo L, Rodrigues AC. Lack of adiponectin in mice accelerates high-fat diet-induced progression of chronic kidney disease. Life Sci 2020; 257:118061. [DOI: 10.1016/j.lfs.2020.118061] [Citation(s) in RCA: 4] [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: 05/25/2020] [Revised: 06/27/2020] [Accepted: 07/05/2020] [Indexed: 12/11/2022]
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9
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de Mendonça M, Rocha KC, de Sousa É, Pereira BMV, Oyama LM, Rodrigues AC. Aerobic exercise training regulates serum extracellular vesicle miRNAs linked to obesity to promote their beneficial effects in mice. Am J Physiol Endocrinol Metab 2020; 319:E579-E591. [PMID: 32744099 DOI: 10.1152/ajpendo.00172.2020] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
There is a growing body of evidence that extracellular vesicles (EVs) and their cargo of RNA, DNA, and protein are released in the circulation with exercise and might mediate interorgan communication. C57BL6/J male mice were subjected to diet-induced obesity and aerobic training on a treadmill for 8 wk. The effect of aerobic training was evaluated in the liver, muscle, kidney, and white/brown adipose tissue. To provide new mechanistic insight, we profiled miRNA from serum EVs of obese and obese trained mice. We demonstrate that aerobic training changes the circulating EV miRNA profile of obese mice, including decreases in miR-122, miR-192, and miR-22 levels. Circulating miRNA levels were associated with miRNA levels in mouse liver white adipose tissue (WAT). In WAT, aerobically trained obese mice showed reduced adipocyte hypertrophy and increased the number of smaller adipocytes and the expression of Cebpa, Pparg, Fabp4 (adipogenesis markers), and ATP-citrate lyase enzyme activity. Importantly, miR-22 levels negatively correlated with the expression of adipogenesis and insulin sensitivity markers. In the liver, aerobic training reverted obesity-induced steatohepatitis, and steatosis score and Pparg expression were negatively correlated with miR-122 levels. The prometabolic effects of aerobic exercise in obesity possibly involve EV miRNAs, which might be involved in communication between liver and WAT. Our data provide significant evidence demonstrating that aerobic training exercise-induced EVs mediate the effect of exercise on adipose tissue metabolism.
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Affiliation(s)
- Mariana de Mendonça
- Departamento de Farmacologia, Universidade de Sao Paulo Instituto de Ciencias Biomedicas, São Paulo, Brasil
| | - Karina C Rocha
- Departamento de Farmacologia, Universidade de Sao Paulo Instituto de Ciencias Biomedicas, São Paulo, Brasil
| | - Érica de Sousa
- Departamento de Farmacologia, Universidade de Sao Paulo Instituto de Ciencias Biomedicas, São Paulo, Brasil
| | - Beatriz M V Pereira
- Departamento de Farmacologia, Universidade de Sao Paulo Instituto de Ciencias Biomedicas, São Paulo, Brasil
| | - Lila Missae Oyama
- Departamento de Fisiologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brasil
| | - Alice C Rodrigues
- Departamento de Farmacologia, Universidade de Sao Paulo Instituto de Ciencias Biomedicas, São Paulo, Brasil
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10
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Araujo HN, Lima TI, Guimarães DSPSF, Oliveira AG, Favero-Santos BC, Branco RCS, da Silva Araújo RM, Dantas AFB, Castro A, Chacon-Mikahil MPT, Minatel E, Geraldo MV, Carneiro EM, Rodrigues AC, Narkar VA, Silveira LR. Regulation of Lin28a-miRNA let-7b-5p pathway in skeletal muscle cells by peroxisome proliferator-activated receptor delta. Am J Physiol Cell Physiol 2020; 319:C541-C551. [PMID: 32697599 DOI: 10.1152/ajpcell.00233.2020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Lin28a/miRNA let-7b-5p pathway has emerged as a key regulators of energy homeostasis in the skeletal muscle. However, the mechanism through which this pathway is regulated in the skeletal muscle has remained unclear. We have found that 8 wk of aerobic training (Tr) markedly decreased let-7b-5p expression in murine skeletal muscle, whereas high-fat diet (Hfd) increased its expression. Conversely, Lin28a expression, a well-known inhibitor of let-7b-5p, was induced by Tr and decreased by Hfd. Similarly, in human muscle biopsies, Tr increased LIN28 expression and decreased let-7b-5p expression. Bioinformatics analysis of LIN28a DNA sequence revealed that its enrichment in peroxisome proliferator-activated receptor delta (PPARδ) binding sites, which is a well-known metabolic regulator of exercise. Treatment of primary mouse skeletal muscle cells or C2C12 cells with PPARδ activators GW501516 and AICAR increased Lin28a expression. Lin28a and let-7b-5p expression was also regulated by PPARδ coregulators. While PPARγ coactivator-1α (PGC1α) increased Lin28a expression, corepressor NCoR1 decreased its expression. Furthermore, PGC1α markedly reduced the let-7b-5p expression. PGC1α-mediated induction of Lin28a expression was blocked by the PPARδ inhibitor GSK0660. In agreement, Lin28a expression was downregulated in PPARδ knocked-down cells leading to increased let-7b-5p expression. Finally, we show that modulation of the Lin28a-let-7b-5p pathway in muscle cells leads to changes in mitochondrial metabolism in PGC1α dependent fashion. In summary, we demonstrate that Lin28a-let-7b-5p is a direct target of PPARδ in the skeletal muscle, where it impacts mitochondrial respiration.
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Affiliation(s)
- Hygor N Araujo
- Obesity and Comorbidities Research Center (OCRC), Campinas, Brazil
| | - Tanes I Lima
- Obesity and Comorbidities Research Center (OCRC), Campinas, Brazil
| | | | - Andre G Oliveira
- Obesity and Comorbidities Research Center (OCRC), Campinas, Brazil
| | | | | | | | | | - Alex Castro
- Laboratory of Exercise Physiology, School of Physical Education, University of Campinas, Campinas, Brazil
| | | | - Elaine Minatel
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Murilo V Geraldo
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
| | | | - Alice C Rodrigues
- Department of Pharmacology, University of Sao Paulo, Sao Paulo, Brazil
| | - Vihang A Narkar
- University of Texas Health McGovern Medical School, Institute of Molecular Medicine, Houston, Texas
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11
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de Mendonça M, de Sousa É, da Paixão AO, Araújo Dos Santos B, Roveratti Spagnol A, Murata GM, Araújo HN, Imamura de Lima T, Passos Simões Fróes Guimarães DS, Silveira LR, Rodrigues AC. MicroRNA miR-222 mediates pioglitazone beneficial effects on skeletal muscle of diet-induced obese mice. Mol Cell Endocrinol 2020; 501:110661. [PMID: 31770568 DOI: 10.1016/j.mce.2019.110661] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 11/19/2019] [Accepted: 11/19/2019] [Indexed: 01/23/2023]
Abstract
Pioglitazone belongs to the class of drugs thiazolidinediones (TZDs) and is an oral hypoglycemic drug, used in the treatment of type 2 diabetes, which improves insulin sensitivity in target tissues. Adipose tissue is the main target of pioglitazone, a PPARg and PPARa agonist; however, studies also point to skeletal muscle as a target. Non-PPAR targets of TZDs have been described, thus we aimed to study the direct effects of pioglitazone on skeletal muscle and the possible role of microRNAs as targets of this drug. Pioglitazone treatment of obese mice increased insulin-mediated glucose transport as a result of increased fatty acid oxidation and mitochondrial activity. PPARg blockage by treatment with GW9662 nullified pioglitazone's effect on systemic and muscle insulin sensitivity and citrate synthase activity of obese mice. After eight weeks of high-fat diet, miR-221-3p expression in soleus muscle was similar among the groups and miR-23b-3p and miR-222-3p were up-regulated in obese mice compared to the control group, and treatment with pioglitazone was able to reverse this condition. In vitro studies in C2C12 cells suggest that inhibition of miR-222-3p protects C2C12 cells from insulin resistance and increased non-mitochondrial respiration induced by palmitate. Together, these data demonstrate a role of pioglitazone in the downregulation of microRNAs that is not dependent on PPARg. Moreover, miR-222 may be a novel PPARg-independent mechanism through which pioglitazone improves insulin sensitivity in skeletal muscle.
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MESH Headings
- Adipose Tissue/drug effects
- Adipose Tissue/metabolism
- Animals
- Blood Glucose/drug effects
- Blood Glucose/metabolism
- Diabetes Mellitus, Experimental/drug therapy
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Type 2/drug therapy
- Diabetes Mellitus, Type 2/metabolism
- Diet, High-Fat/adverse effects
- Disease Models, Animal
- Down-Regulation/drug effects
- Glucose/metabolism
- Glucose Tolerance Test
- Hypoglycemic Agents
- Insulin/metabolism
- Insulin Resistance/physiology
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Obese
- MicroRNAs/metabolism
- Muscle, Skeletal/drug effects
- Muscle, Skeletal/metabolism
- Obesity/drug therapy
- Obesity/metabolism
- PPAR alpha/metabolism
- PPAR gamma/metabolism
- Palmitates/pharmacology
- Pioglitazone/pharmacology
- Thiazolidinediones/pharmacology
- Up-Regulation/drug effects
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Affiliation(s)
| | - Érica de Sousa
- Department of Pharmacology, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Ailma O da Paixão
- Department of Pharmacology, University of Sao Paulo, Sao Paulo, SP, Brazil
| | | | | | - Gilson M Murata
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Hygor N Araújo
- Obesity and Comorbidities Research Center, Campinas, Sao Paulo, Brazil; Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Tanes Imamura de Lima
- Obesity and Comorbidities Research Center, Campinas, Sao Paulo, Brazil; Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Dimitrius Santiago Passos Simões Fróes Guimarães
- Obesity and Comorbidities Research Center, Campinas, Sao Paulo, Brazil; Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Leonardo R Silveira
- Obesity and Comorbidities Research Center, Campinas, Sao Paulo, Brazil; Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Alice C Rodrigues
- Department of Pharmacology, University of Sao Paulo, Sao Paulo, SP, Brazil.
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12
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Boeno D, Silva RF, Almeida HS, Rodrigues AC, Vanzan M, Andreazza R. Influence of eucalyptus development under soil fauna. BRAZ J BIOL 2019; 80:345-353. [PMID: 31508656 DOI: 10.1590/1519-6984.206022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Accepted: 03/08/2019] [Indexed: 11/22/2022] Open
Abstract
In the implantation of forests, soil tillage can affect the soil fauna, but over the years, it is possible that forest development can recompose the biological indicators of soil quality. So, the aim of this study was to evaluate the influence of different periods of eucalyptus development on community of edaphic fauna. The experiment was carried out in forest areas in the municipality of Ametista do Sul, RS. The Experimental design was completely randomized with 6 treatments, once 4 of the treatments were with different ages of the Eucalyptus grandis (two, four, six and eight years after trasnplant - YAT); plus 2 control treatments: Native Forest and Soil Naked, with 7 collection points. To sample the edaphic fauna, it was used traps such as PROVID. Also, the edaphic fauna was sampled at the depth of 0-5 cm for the quantification of mites. It was carried out the counting of individuals at the level of order and family for the mites, the means of the groups were submitted to the Tukey test and comparisons by Orthogonal Contrasts and calculated indices of Biodiversity: Margalef Richness, Simpson dominance, Shannon diversity and Pielou uniformity. The results showed lower abundance of individuals in Naked soil, while the Native Forest presented the best Biodiversity indices. With eight years of implantation of eucalyptus there was recovered the biological quality of the soil expressed by the population of springtails. The population of oribatídeos mites increased expressively from the six years of implantation of eucalyptus.
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Affiliation(s)
- D Boeno
- Departamento de Solos, Universidade Federal de Santa Maria - UFSM, Av. Roraima, 1000, Prédio 42, CEP 97105-900, Santa Maria, RS, Brasil
| | - R F Silva
- Departamento de Ciências Agronômicas e Ambientais, Centro de Educação Superior Norte do Rio Grande do Sul, Universidade Federal de Santa Maria - UFSM, Linha Sete de Setembro, s/n, CEP 98400-000, Frederico Westphalen, RS, Brasil
| | - H S Almeida
- Colégio Politécnico, Universidade Federal de Santa Maria - UFSM, Av. Roraima, 1000, Prédio 70, CEP 97105-900, Santa Maria, RS, Brasil
| | - A C Rodrigues
- Departamento de Ciências Agronômicas e Ambientais, Centro de Educação Superior Norte do Rio Grande do Sul, Universidade Federal de Santa Maria - UFSM, Linha Sete de Setembro, s/n, CEP 98400-000, Frederico Westphalen, RS, Brasil
| | - M Vanzan
- Departamento de Ciências Agronômicas e Ambientais, Centro de Educação Superior Norte do Rio Grande do Sul, Universidade Federal de Santa Maria - UFSM, Linha Sete de Setembro, s/n, CEP 98400-000, Frederico Westphalen, RS, Brasil
| | - R Andreazza
- Centro de Engenharias, Universidade Federal de Pelotas - UFPel, Rua Benjamin Constant, 989, CEP 96010-020, Pelotas, RS, Brasil
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13
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Martins AR, Crisma AR, Masi LN, Amaral CL, Marzuca-Nassr GN, Bomfim LH, Teodoro BG, Queiroz AL, Serdan TD, Torres RP, Mancini-Filho J, Rodrigues AC, Alba-Loureiro TC, Pithon-Curi TC, Gorjao R, Silveira LR, Curi R, Newsholme P, Hirabara SM. Attenuation of obesity and insulin resistance by fish oil supplementation is associated with improved skeletal muscle mitochondrial function in mice fed a high-fat diet. J Nutr Biochem 2018; 55:76-88. [DOI: 10.1016/j.jnutbio.2017.11.012] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 09/28/2017] [Accepted: 11/14/2017] [Indexed: 12/14/2022]
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14
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Frias FDT, Rocha KCE, de Mendonça M, Murata GM, Araujo HN, de Sousa LGO, de Sousa É, Hirabara SM, Leite NDC, Carneiro EM, Curi R, Silveira LR, Rodrigues AC. Fenofibrate reverses changes induced by high-fat diet on metabolism in mice muscle and visceral adipocytes. J Cell Physiol 2017; 233:3515-3528. [PMID: 28926107 DOI: 10.1002/jcp.26203] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [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: 04/18/2017] [Accepted: 09/14/2017] [Indexed: 02/06/2023]
Abstract
The effect of fenofibrate on the metabolism of skeletal muscle and visceral white adipose tissue of diet-induced obese (DIO) mice was investigated. C57BL/6J male mice were fed either a control or high-fat diet for 8 weeks. Fenofibrate (50 mg/Kg BW, daily) was administered by oral gavage during the last two weeks of the experimental period. Insulin-stimulated glucose metabolism in soleus muscles, glucose tolerance test, insulin tolerance test, indirect calorimetry, lipolysis of visceral white adipose tissue, expression of miR-103-3p in adipose tissue, and miR-1a, miR-133a/b, miR-206, let7b-5p, miR-23b-3p, miR-29-3p, miR-143-3p in soleus muscle, genes related to glucose and fatty acid metabolism in adipose tissue and soleus muscle, and proteins (phospho-AMPKα2, Pgc1α, Cpt1b), intramuscular lipid staining, and activities of fatty acid oxidation enzymes in skeletal muscle were investigated. In DIO mice, fenofibrate prevented weight gain induced by HFD feeding by increasing energy expenditure; improved whole body glucose homeostasis, and in skeletal muscle, increased insulin dependent glucose uptake, miR-1a levels, reduced intramuscular lipid accumulation, and phospho-AMPKα2 levels. In visceral adipose tissue of obese mice, fenofibrate decreased basal lipolysis rate and visceral adipocytes hypertrophy, and induced the expression of Glut-4, Irs1, and Cav-1 mRNA and miR-103-3p suggesting a higher insulin sensitivity of the adipocytes. The evidence is presented herein that beneficial effects of fenofibrate on body weight, glucose homeostasis, and muscle metabolism might be related to its action in adipose tissue. Moreover, fenofibrate regulates miR-1a-3p in soleus and miR-103-3p in adipose tissue, suggesting these microRNAs might contribute to fenofibrate beneficial effects on metabolism.
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Affiliation(s)
- Flávia de T Frias
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Karina C E Rocha
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Mariana de Mendonça
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Gilson M Murata
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Hygor N Araujo
- Obesity and Comorbidities Research Center, Campinas, Sao Paulo, Brazil.,Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Luís G O de Sousa
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Érica de Sousa
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Sandro M Hirabara
- Interdisciplinary Post-Graduate Program in Health Science, Cruzeiro do Sul University, Sao Paulo, Brazil
| | - Nayara de C Leite
- Obesity and Comorbidities Research Center, Campinas, Sao Paulo, Brazil.,Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Everardo M Carneiro
- Obesity and Comorbidities Research Center, Campinas, Sao Paulo, Brazil.,Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Rui Curi
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil.,Interdisciplinary Post-Graduate Program in Health Science, Cruzeiro do Sul University, Sao Paulo, Brazil
| | - Leonardo R Silveira
- Obesity and Comorbidities Research Center, Campinas, Sao Paulo, Brazil.,Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Alice C Rodrigues
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
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15
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Tamashiro EY, Felipe CR, Genvigir FDV, Rodrigues AC, Campos AB, Hirata RDC, Tedesco-Silva H, Medina-Pestana JO. Influence of CYP3A4 and CYP3A5 polymorphisms on tacrolimus and sirolimus exposure in stable kidney transplant recipients. Drug Metab Pers Ther 2017; 32:89-95. [PMID: 28593920 DOI: 10.1515/dmpt-2016-0036] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 03/07/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Polymorphisms in genes encoding for drug-metabolizing enzymes and drug transporters are among multiple factors that modulate the pharmacokinetic variability of tacrolimus (TAC) and sirolimus (SRL). This study aimed to evaluate the influence of single nucleotide polymorphisms (SNPs) on TAC and SRL dose-adjusted concentrations (C0/D) in stable kidney transplant recipients. METHODS This is an exploratory and prospective study, which includes 46 stable kidney transplant recipients. These patients were monitored from the 3rd to the 24th month after transplantation. The SRL group consisted of 25 patients receiving TAC, prednisone (PRED), and mycophenolate sodium (MPS), which were converted from TAC to SRL at 3rd month after transplantation. The TAC group consisted of 21 patients who underwent treatment with TAC, PRED, and MPS. Both groups were genotyped for CYP3A4 rs2242480 (g.20230G>A), CYP3A5 rs15524 (g.31611C>T), CYP2C8 rs10509681 (c.1196A>G) and ABCB1 rs1045642 (c.3435C>T), rs1128503 (c.1236C>T), and rs2032582 (c.2677G>T/A) polymorphisms. RESULTS In the TAC group, CYP3A4 rs2242480 A allele carriers were associated with lower TAC C0/D. For CYP3A5 rs15524 SNP, C0/D was higher among patients carrying TT genotype when compared with CT and CC genotype carriers in the SRL and, more consistently, in the TAC groups. For ABCB1 rs1045642 SNP, TT genotype was associated with reduced SRL C0/D, but only at month 15. CONCLUSIONS CYP3A4 rs2242480 and CYP3A5 rs15524 SNPs resulted in significant changes in SRL and TAC C0/D at different times after transplantation.
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16
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Gomes RA, Busato KC, Ladeira MM, Johnson KA, Galvão MC, Rodrigues AC, Lourençoni D, Chizzotti ML. Technical note: Relationship between infrared thermography and heat production in young bulls. J Anim Sci 2016; 94:1105-9. [PMID: 27065272 DOI: 10.2527/jas.2015-0004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The traditional techniques to measure heat production (HP) are calorimetry (direct and indirect) and comparative slaughter. Both methods are expensive and require extensive amounts of time and infrastructure. Infrared thermography (IRT) could be a faster and less expensive alternative to estimate cattle HP. The objective of this project was to evaluate the use of the IRT technique as an indicator of HP in cattle. A total of 24 bulls (12 Nellore and 12 Black Angus) with initial BW of 380 ± 7 kg were used. Initially, 4 animals of each breed were harvested (baseline animals) and simple regressions were developed for each breed from these baseline animals to estimate the initial chemical composition of the remaining bulls. Eight animals of each breed were fed a silage/concentrate diet for ad libitum intake in individual stalls. On the 25th, 50th, and 75th experimental day, infrared thermal images (Fluke Ti 55ft; Fluke Corporation) were taken of each animal's face to access skin and ocular surface temperatures. A metabolism trial was conducted to estimate the ME intake (MEI). After 84 experimental days, the cattle were harvested and retained energy (RE) and HP were calculated. The data were analyzed using the MIXED and REG procedures of SAS adopting a significance level of 0.05. Angus cattle had a greater daily MEI, HP, and skin and eye temperatures than Nellore. We found significant correlations ( ≤ 0.005) between daily HP and maximum ( = 0.65) and average skin temperatures ( = 0.65) and maximum ( = 0.65) and average ocular surface ( = 0.69) temperatures recorded on d 50. Infrared thermography has potential to be used to evaluate HP in cattle.
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17
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Rodrigues AC, Neri EA, Veríssimo-Filho S, Rebouças NA, Hirata RDC, Yu AM. Atorvastatin attenuation of ABCB1 expression is mediated by microRNA miR-491-3p in Caco-2 cells. Eur J Pharm Sci 2016; 93:431-6. [PMID: 27575876 DOI: 10.1016/j.ejps.2016.08.044] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [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: 06/01/2016] [Revised: 08/01/2016] [Accepted: 08/23/2016] [Indexed: 12/11/2022]
Abstract
AIM Atorvastatin, a HMG-CoA reductase inhibitor, used in the treatment of hypercholesterolemia, has been previously shown to regulate ABCB1 expression in vivo and in vitro. We hypothesized that the statin could regulate gene expression of ABCB1 transporter via microRNAs. METHODS Expression of microRNAs and ABCB1 mRNA was examined in atorvastatin-treated and control cells using real-time PCR. miR-491-3P mimic and inhibitor were transfected in Caco-2 and ABCB1 expression was monitored by western blot and real-time PCR. RESULTS In HepG2 cells, none of the microRNAs predicted to target ABCB1 3'UTR was regulated by atorvastatin treatment. In agreement with this, ABCB1 3'UTR activity was not modulated in HepG-2 cells after 48h-treatment as measured by luciferase assay. In Caco-2 cells, atorvastatin treatment provoked a decrease in luciferase activity and, accordingly, miR-491-3p was upregulated about 2.7 times after 48h-statin treatment. Luciferase analysis of miR-491-3p with a mimetic or inhibitor of miR-491-3p revealed that this microRNA could target ABCB1 3'UTR, as after miR-491-3p inhibition, ABCB1 levels were increased by two-fold, and miR-491-3p superexpression decreased ABCB1 3'UTR activity. Finally, functional analysis revealed that treatment with miR-491-3p inhibitor could reverses atorvastatin attenuation of ABCB1 (Pg-p) protein levels. CONCLUSION Our results suggest atorvastatin control ABCB1 expression via miR-491-3p in Caco-2 cells. This finding may be an important mechanism of statin drug-drug interaction, since common concomitant drugs used in the prevention of cardiovascular diseases are ABCB1 substrates.
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Affiliation(s)
- Alice C Rodrigues
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil.
| | - Elida Adalgisa Neri
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Sidney Veríssimo-Filho
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Nancy Amaral Rebouças
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Rosario D C Hirata
- Department of Clinical and Toxicological Analysis, Faculty of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Ai-Ming Yu
- Department of Biochemistry and Molecular Medicine, School of Medicine, University of California-Davis, Sacramento, CA, United States
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18
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Busato KC, Gomes RA, Ladeira MM, Duarte MS, Freitas NC, Rodrigues AC, Chalfun-Junior A, Paiva LV, Chizzotti ML. Expression of genes related to the regulation of muscle protein turnover in Angus and Nellore bulls. J Anim Sci 2016; 94:1472-81. [PMID: 27136006 DOI: 10.2527/jas.2015-9924] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
We aimed to evaluate the expression of genes related to the regulation of muscle protein turnover in the longissimus dorsi (LD) muscle of Angus and Nellore bulls and to estimate the within-breed correlations of gene expression and performance traits. Thirteen genes related to the IGF-1 and myostatin pathways were studied. Thirteen animals, with an initial average BW of 381.2 ± 11.8 kg, from each breed were used in a completely randomized 2 × 2 factorial design (2 breeds and 2 feeding levels). The diet consisted of corn silage and a corn-soybean meal concentrate in a roughage-to-concentrate ratio of 30:70. Cattle were fed ad libitum (with 9 animals from each breed) or feed restricted (a 55% restriction of total DMI of ad libitum-fed animals, calculated as percentage of metabolic BW, with 4 animals of each breed). The experimental period lasted for 82 d and it was preceded by a 28-d adaptation period. The performance traits evaluated were slaughter body weight, total ADG (from d 1 to 82 of the trial), initial ADG (from d 1 to 41 of the trial), final ADG (from d 42 to 82 of the trial), total DMI (from d 1 to 82 of the trial), initial DMI (from d 1 to 41 of the trial), final DMI (from d 42 to 82 of the trial), HCW, LD weight (LDW), and rib eye area (REA). After slaughter, samples were taken from the LD muscle between the 12th and 13th ribs for gene expression analysis by quantitative reverse transcription PCR. There was no difference ( > 0.05) in the expression of any of the genes studied between ad libitum-fed Angus and ad libitum-fed Nellore, whereas feed restriction increased the expression of (; < 0.001), (; = 0.05), and (; = 0.04) and decreased the expression of ( < 0.01). The REA was negatively correlated to (; = 0.01), (; = 0.02), and ( = 0.05). The HCW was negatively correlated to ( = 0.01) and ( = 0.01) and tended to be negatively correlated to ( = 0.07), whereas the LDW tended to be negatively correlated to ( = 0.08). The genes , , and seem to be important for muscle growth and may be worthy of further investigation as future strategies for increasing muscle in livestock.
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Martins JR, Edvaldo AAS, Alvarenga AA, Rodrigues AC, Ribeiro DE, Toorop PE. Seedling survival of Handroanthus impetiginosus (Mart ex DC) Mattos in a semi-arid environment through modified germination speed and post-germination desiccation tolerance. BRAZ J BIOL 2015; 75:812-20. [PMID: 26675900 DOI: 10.1590/1519-6984.23413] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Accepted: 05/21/2014] [Indexed: 11/22/2022] Open
Abstract
Uniform rapid seed germination generally forms a great risk for the plant population if subsequent intermittent precipitation causes desiccation and seedling death. Handroanthus impetiginosus can be found commonly in a wide range of biomes within Brazil including those that are semi-arid. Germination and early growth was studied to understand how germinated seeds survive under these stringent conditions. Accessions were sampled from four seasonally dry biomes in Brazil. Precipitation at the start of the rainy season in the Caatinga, a semi-arid biome, is less predictable and the number of successive dry days per dry interval in the first four months of the rainy season was higher than in the other studied biomes. Plants from the Caatinga produced thicker seeds and this trait concurred with slow germination and stronger osmotic inhibition of germination across the accessions, forming a stress avoidance mechanism in the Caatinga. Post-germination desiccation tolerance was high in the Caatinga accession, could be re-induced in accessions from biomes with more regular precipitation (Cerrado and transition zone), but remained poor in the Cerradão accession; thus forming a stress tolerance mechanism. Production of adventitious roots ascertained survival of all tested individuals from all four locations, even if protruded radicles did not survive desiccation, forming an additional stress tolerance mechanism. A sequence of stress avoidance and stress tolerance mechanisms in seeds and germinated seeds was associated with precipitation patterns in different biomes. These mechanisms purportedly allow rapid seedling establishment when conditions are suitable and enable survival of the young seedling when conditions are adverse.
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Affiliation(s)
- J R Martins
- Departamento de Ciências Florestais, Universidade Federal de Lavras, Lavras, MG, Brazil
| | - A A S Edvaldo
- Faculdade de Ciências Agronômicas, Universidade Estadual Paulista, Botucatu, SP, Brazil
| | - A A Alvarenga
- Departamento de Biologia, Universidade Federal de Lavras, Lavras, MG, Brazil
| | - A C Rodrigues
- Departamento de Biologia, Universidade Federal de Lavras, Lavras, MG, Brazil
| | - D E Ribeiro
- Departamento de Biologia, Universidade Federal de Lavras, Lavras, MG, Brazil
| | - P E Toorop
- Seed Conservation Department, Royal Botanic Gardens Kew, West Sussex, United Kingdom
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20
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de Sousa MV, Fukui R, Krustrup P, Pereira RMR, Silva PRS, Rodrigues AC, de Andrade JL, Hernandez AJ, da Silva MER. Positive effects of football on fitness, lipid profile, and insulin resistance in Brazilian patients with type 2 diabetes. Scand J Med Sci Sports 2015; 24 Suppl 1:57-65. [PMID: 24944132 DOI: 10.1111/sms.12258] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/24/2014] [Indexed: 12/19/2022]
Abstract
We evaluated the effects of recreational football training combined with calorie-restricted diet (football + diet) vs calorie-restricted diet alone (diet) on aerobic fitness, lipid profile, and insulin resistance indicators in type 2 diabetes (T2D) patients. Forty-four T2D patients aged 48-68 years (27 females, 17 males) were randomly allocated to the football + diet group (FDG; n = 22) or to the diet group (DG; n = 22), of whom 19 FDG and 15 DG subjects completed the study. The football training was performed for 3 × 40 min/week for 12 weeks. Dual-energy X-ray absorptiometry scanning, treadmill testing, and fasting blood samplings were performed pre and post-intervention. After 12 weeks, maximal oxygen uptake (VO₂max ) was elevated (P < 0.05) by 10 ± 4% in FDG but not in DG (-3 ± 4%, P < 0.05). After 12 weeks, reductions in blood triglycerides (0.4 ± 0.1 mmol/L), total cholesterol (0.6 ± 0.2 mmol/L), low-density lipoprotein, and very low-density lipoprotein levels were observed only in FDG. Fat mass decreased (P < 0.05) by 3.4 ± 0.4 kg in FDG and 3.7 ± 0.4 kg in DG. The lower (P < 0.05) glucagon and homeostatic model assessment of insulin resistance indicated an improvement in insulin sensitivity in FDG. In conclusion, football combined with restricted diet was effective in enhancing VO₂max , reducing total cholesterol and triglycerides, and increasing insulin sensitivity, potentially providing better tools for the prevention of T2D complications than diet alone.
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Affiliation(s)
- M V de Sousa
- Laboratory of Medical Investigation, LIM-18, Endocrinology Division, School of Medicine, University of São Paulo, São Paulo, Brazil
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21
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Bortoluci CHF, Simionato LH, Rosa Junior GM, Oliveira JA, Lauris JRP, Moraes LHR, Rodrigues AC, Andreo JC. Histochemistry profile of the biceps brachii muscle fibres of capuchin monkeys (Cebus apella, Linnaeus, 1758). BRAZ J BIOL 2015; 74:S177-83. [PMID: 25627383 DOI: 10.1590/1519-6984.25512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Accepted: 05/31/2013] [Indexed: 11/21/2022] Open
Abstract
A general analysis of the behaviour of "Cebus" shows that when this primate moves position to feed or perform another activity, it presents different ways of locomotion. This information shows that the brachial biceps muscle of this animal is frequently used in their locomotion activities, but it should also be remembered that this muscle is also used for other development activities like hiding, searching for objects, searching out in the woods, and digging in the soil. Considering the above, it was decided to research the histoenzimologic characteristics of the brachial biceps muscle to observe whether it is better adpted to postural or phasic function. To that end, samples were taken from the superficial and deep regions, the inserts proximal (medial and lateral) and distal brachial biceps six capuchin monkeys male and adult, which were subjected to the reactions of m-ATPase, NADH-Tr. Based on the results of these reactions fibres were classified as in Fast Twitch Glycolitic (FG), Fast Twitch Oxidative Glycolitic (FOG) and Slow Twitc (SO). In general, the results, considering the muscle as a whole, show a trend of frequency FOG> FG> SO. The data on the frequency were studied on three superficial regions FOG=FG>SO; the deep regions of the inserts proximal FOG=FG=SO and inserting the distal FOG>FG=SO. In conclusion, the biceps brachii of the capuchin monkey is well adapted for both postural and phasic activities.
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Affiliation(s)
- C H F Bortoluci
- Physiotherapy Department, Universidade do Sagrado Coração - USC, Bauru, SP, Brazil
| | - L H Simionato
- Physiotherapy Department, Universidade do Sagrado Coração - USC, Bauru, SP, Brazil
| | - G M Rosa Junior
- Physiotherapy Department, Universidade do Sagrado Coração - USC, Bauru, SP, Brazil
| | - J A Oliveira
- Department of Basic Sciences, School of Dentistry of Araçatuba, Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Araçatuba, SP, Brazil
| | - J R P Lauris
- Department of Pediatric Dentistry, Orthodontics and Collective Health, Faculty of Dentistry of Bauru, São Paulo University - USP, Bauru, SP, Brazil
| | - L H R Moraes
- Department of Biological Sciences - Anatomy, Faculty of Dentistry of Bauru, São Paulo University - USP, Bauru, SP, Brazil
| | - A C Rodrigues
- Department of Biological Sciences - Anatomy, Faculty of Dentistry of Bauru, São Paulo University - USP, Bauru, SP, Brazil
| | - J C Andreo
- Department of Biological Sciences - Anatomy, Faculty of Dentistry of Bauru, São Paulo University - USP, Bauru, SP, Brazil
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Abstract
PURPOSE OF REVIEW Fatty acids influence human health and diseases in various ways. In recent years, much work has been carried out to elucidate the mechanisms by which dietary fatty acids control short-term and long-term cellular functions. We have reviewed herein the most recent studies on modulation of gene expression by fatty acids. A number of genes respond to transcription factors and present a transcription factor response element in their promoter regions. Fatty acids may exert their effects on metabolism by regulating gene transcription via transcription factors. Understanding how fatty acids control expression of metabolic genes is a promising strategy to be investigated by aiming to treat metabolic diseases such as insulin resistance, obesity, and type 2 diabetes mellitus. RECENT FINDINGS Fatty acids exert many of their biological effects through the modulation of the activity of transcription factors, such as sterol regulatory element-binding proteins, peroxisome proliferator-activated receptors, and liver X receptors. SUMMARY Fatty acid action through transcription factors controls the expression of several inflammatory and metabolic genes.
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Affiliation(s)
- Laureane N Masi
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
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Willrich MAV, Rodrigues AC, Cerda A, Genvigir FD, Arazi SS, Dorea EL, Bernik MM, Bertolami MC, Faludi A, Largura A, Baudhuin LM, Bryant SC, Hirata MH, Hirata RDC. Effects of atorvastatin on CYP3A4 and CYP3A5 mRNA expression in mononuclear cells and CYP3A activity in hypercholeresterolemic patients. Clin Chim Acta 2013; 421:157-63. [DOI: 10.1016/j.cca.2013.03.007] [Citation(s) in RCA: 17] [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] [Received: 12/10/2012] [Revised: 01/31/2013] [Accepted: 03/06/2013] [Indexed: 11/26/2022]
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Pithon‐Curi TC, Rodrigues CF, Sousa LGO, Vasconcelos DA, Vinolo MA, Rodrigues AC, Nachbar RT, Guimarães‐Ferreira L, Gerlinger‐Romero F, Sellitti DF, Hirabara SM, Curi R. Effect of glutamine supplementation and resistive training in signaling pathways of protein synthesis and degradation in rat skeletal muscle. FASEB J 2013. [DOI: 10.1096/fasebj.27.1_supplement.lb719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Luis G O Sousa
- Physiology and BiophysicsUniversity of Sao PauloSao PauloBrazil
| | | | - Marco A Vinolo
- Physiology and BiophysicsUniversity of Sao PauloSao PauloBrazil
| | | | | | | | | | | | | | - Rui Curi
- Physiology and BiophysicsUniversity of Sao PauloSao PauloBrazil
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25
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Hirabara SM, Sousa LGO, Rodrigues CF, Martins AR, Neto JCR, Rodrigues AC, Lima EA, Gorjao R, Pithon‐Curi TC, Curi R. Skeletal muscle protein degradation induced by high‐fat diet is decreased by macadamia oil supplementation: Role of E3 ubiquitin enzyme ligase MuRF‐1 and atrogin‐1. FASEB J 2013. [DOI: 10.1096/fasebj.27.1_supplement.lb706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Luis G O Sousa
- Physiology and BiophysicsUniversity of Sao PauloSao PauloBrazil
| | | | | | | | | | - Edson A Lima
- Physiology and BiophysicsUniversity of Sao PauloSao PauloBrazil
| | | | | | - Rui Curi
- Physiology and BiophysicsUniversity of Sao PauloSao PauloBrazil
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Ferreira SG, Peliciari-Garcia RA, Takahashi-Hyodo SA, Rodrigues AC, Amaral FG, Berra CM, Bordin S, Curi R, Cipolla-Neto J. Effects of melatonin on DNA damage induced by cyclophosphamide in rats. Braz J Med Biol Res 2013; 46:278-86. [PMID: 23471360 PMCID: PMC3854377 DOI: 10.1590/1414-431x20122230] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Accepted: 09/17/2012] [Indexed: 11/22/2022] Open
Abstract
The antioxidant and free radical scavenger properties of melatonin have been well
described in the literature. In this study, our objective was to determine the
protective effect of the pineal gland hormone against the DNA damage induced by
cyclophosphamide (CP), an anti-tumor agent that is widely applied in clinical
practice. DNA damage was induced in rats by a single intraperitoneal injection
of CP (20 or 50 mg/kg). Animals received melatonin during the dark period for 15
days (1 mg/kg in the drinking water). Rat bone marrow cells were used for the
determination of chromosomal aberrations and of formamidopyrimidine DNA
glycosylase enzyme (Fpg)-sensitive sites by the comet technique and of
Xpf mRNA expression by qRT-PCR. The number (mean ± SE) of
chromosomal aberrations in pinealectomized (PINX) animals treated with melatonin
and CP (2.50 ± 0.50/100 cells) was lower than that obtained for PINX animals
injected with CP (12 ± 1.8/100 cells), thus showing a reduction of 85.8% in the
number of chromosomal aberrations. This melatonin-mediated protection was also
observed when oxidative lesions were analyzed by the Fpg-sensitive assay, both
24 and 48 h after CP administration. The expression of Xpf
mRNA, which is involved in the DNA nucleotide excision repair machinery, was
up-regulated by melatonin. The results indicate that melatonin is able to
protect bone marrow cells by completely blocking CP-induced chromosome
aberrations. Therefore, melatonin administration could be an alternative and
effective treatment during chemotherapy.
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Affiliation(s)
- S G Ferreira
- Departamento de Fisiologia e Biofísica, Instituto de Ciências Biomédicas I, Universidade de São Paulo, São Paulo, SP, Brasil
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Hirabara SM, Folador A, Fiamoncini J, Lambertucci RH, Rodrigues CF, Rocha MS, Aikawa J, Yamazaki RK, Martins AR, Rodrigues AC, Carpinelli AR, Pithon-Curi TC, Fernandes LC, Gorjão R, Curi R. Fish oil supplementation for two generations increases insulin sensitivity in rats. J Nutr Biochem 2012; 24:1136-45. [PMID: 23246156 DOI: 10.1016/j.jnutbio.2012.08.014] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2012] [Revised: 08/13/2012] [Accepted: 08/20/2012] [Indexed: 11/26/2022]
Abstract
We investigated the effect of fish oil supplementation for two consecutive generations on insulin sensitivity in rats. After the nursing period (21 days), female rats from the same prole were divided into two groups: (a) control group and (b) fish oil group. Female rats were supplemented with water (control) or fish oil at 1 g/kg body weight as a single bolus for 3 months. After this period, female rats were mated with male Wistar rats fed on a balanced chow diet (not supplemented). Female rats continued to receive supplementation throughout gestation and lactation periods. The same treatment was performed for the next two generations (G1 and G2). At 75 days of age, male offspring from G1 and G2 generations from both groups were used in the experiments. G1 rats did not present any difference with control rats. However, G2 rats presented reduction in glycemia and lipidemia and improvement in in vivo insulin sensitivity (model assessment of insulin resistance, insulin tolerance test) as well as in vitro insulin sensitivity in soleus muscle (glucose uptake and metabolism). This effect was associated with increased insulin-stimulated p38 MAP kinase phosphorylation and lower n-6/n-3 fatty acid ratio, but not with activation of proteins from insulin signaling (IR, IRS-1 and Akt). Global DNA methylation was decreased in liver but not in soleus muscle. These results suggest that long-term fish oil supplementation improves insulin sensitivity in association with increased insulin-stimulated p38 activation and decreased n-6:n-3 ratio in skeletal muscle and decreased global DNA methylation in liver.
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Affiliation(s)
- Sandro M Hirabara
- Institute of Physical Activity Sciences and Sport, Cruzeiro do Sul University, São Paulo, Brazil.
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Rodrigues AC, Sobrino B, Genvigir FDV, Willrich MAV, Arazi SS, Dorea EL, Bernik MMS, Bertolami M, Faludi AA, Brion MJ, Carracedo A, Hirata MH, Hirata RDC. Genetic variants in genes related to lipid metabolism and atherosclerosis, dyslipidemia and atorvastatin response. Clin Chim Acta 2012; 417:8-11. [PMID: 23247049 DOI: 10.1016/j.cca.2012.11.028] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2012] [Revised: 11/27/2012] [Accepted: 11/27/2012] [Indexed: 01/06/2023]
Abstract
OBJECTIVE Using candidate gene approach, we have investigated the effect of single nucleotide polymorphism (SNP) in genes related to lipid metabolism and atherosclerosis on dyslipidemia and atorvastatin response. METHODS The study included 157 patients treated with atorvastatin and 145 controls. Genomic DNA was isolated and genotyped using SNPlex technology. RESULTS Allele and genotype disease association test revealed that APOB rs693 (OR: 2.2 [1.5-3.2], p=0.0001) and CD36 rs1984112 (OR: 3.7 [1.9-7.0], p=0.0002) SNPs were independent risk factors for hypercholesterolemia. Only APOB rs693 T variant allele was associated with increased LDL cholesterol levels (>160mg/dL). After atorvastatin treatment (10mg/day/4weeks), LIPC -514T allele was positively associated with LDL cholesterol reduction. CONCLUSION The current study reinforces the current knowledge that carrying APOB rs693 is an independent risk factor for dyslipidemia and higher LDL levels. Furthermore, we found that a variant of CD36 was associated with dyslipidemia as a risk (rs1984112) factor. Finally, atorvastatin response could be predicted by LIPC -514C>T SNP and physical activity. In conclusion, our data evidences the contribution of genetic markers and their interaction with environmental factor in the variability of statin response.
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Affiliation(s)
- A C Rodrigues
- Faculdade de Ciências Farmacêuticas, USP, São Paulo, SP, Brazil.
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29
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Silbiger VN, Hirata MH, Luchessi AD, Genvigir FDV, Cerda A, Rodrigues AC, Willrich MAV, Arazi SS, Dorea EL, Bernik MMS, Faludi AA, Bertolami MC, Santos C, Carracedo A, Salas A, Freire A, Lareu MV, Phillips C, Porras-Hurtado L, Fondevila M, Hirata RDC. Differentiation of African components of ancestry to stratify groups in a case-control study of a Brazilian urban population. Genet Test Mol Biomarkers 2012; 16:524-30. [PMID: 22288895 DOI: 10.1089/gtmb.2011.0267] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND Balancing the subject composition of case and control groups to create homogenous ancestries between each group is essential for medical association studies. METHODS We explored the applicability of single-tube 34-plex ancestry informative markers (AIM) single nucleotide polymorphisms (SNPs) to estimate the African Component of Ancestry (ACA) to design a future case-control association study of a Brazilian urban sample. RESULTS One hundred eighty individuals (107 case group; 73 control group) self-described as white, brown-intermediate or black were selected. The proportions of the relative contribution of a variable number of ancestral population components were similar between case and control groups. Moreover, the case and control groups demonstrated similar distributions for ACA <0.25 and >0.50 categories. Notably a high number of outlier values (23 samples) were observed among individuals with ACA <0.25. These individuals presented a high probability of Native American and East Asian ancestral components; however, no individuals originally giving these self-described ancestries were observed in this study. CONCLUSIONS The strategy proposed for the assessment of ancestry and adjustment of case and control groups for an association study is an important step for the proper construction of the study, particularly when subjects are taken from a complex urban population. This can be achieved using a straight forward multiplexed AIM-SNPs assay of highly discriminatory ancestry markers.
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Affiliation(s)
- Vivian N Silbiger
- Faculty of Pharmaceutical Sciences, University of Sao Paulo, São Paulo, Brazil.
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Ferreira AFB, Real CC, Rodrigues AC, Alves AS, Britto LRG. Short-term, moderate exercise is capable of inducing structural, BDNF-independent hippocampal plasticity. Brain Res 2011; 1425:111-22. [PMID: 22035567 DOI: 10.1016/j.brainres.2011.10.004] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Revised: 09/12/2011] [Accepted: 10/02/2011] [Indexed: 12/28/2022]
Abstract
Exercise is known to improve cognitive functions and to induce neuroprotection. In this study we used a short-term, moderate intensity treadmill exercise protocol to investigate the effects of exercise on usual markers of hippocampal synaptic and structural plasticity, such as synapsin I (SYN), synaptophysin (SYP), neurofilaments (NF), microtubule-associated protein 2 (MAP2), glutamate receptor subunits GluR1 and GluR2/3, brain-derived neurotrophic factor (BDNF) and glial fibrillary acidic protein (GFAP). Immunohistochemistry, Western blotting and real-time PCR were used. We also evaluated the number of cells positive for the proliferation marker 5-bromo-2-deoxyuridine (BrdU), the neurogenesis marker doublecortin (DCX) and the plasma corticosterone levels. Adult male Wistar rats were adapted to a treadmill and divided into 4 groups: sedentary (SED), 3-day exercise (EX3), 7-day exercise (EX7) and 15-day exercise (EX15). The protein changes detected were increased levels of NF68 and MAP2 at EX3, of SYN at EX7 and of GFAP at EX15, accompanied by a decreased level of GluR1 at EX3. Immunohistochemical findings revealed a similar pattern of changes. The real-time PCR analysis disclosed only an increase of MAP2 mRNA at EX7. We also observed an increased number of BrdU-positive cells and DCX-positive cells in the subgranular zone of the dentate gyrus at all time points and increased corticosterone levels at EX3 and EX7. These results reveal a positive effect of short-term, moderate treadmill exercise on hippocampal plasticity. This effect was in general independent of transcriptional processes and of BDNF upregulation, and occurred even in the presence of increased corticosterone levels.
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Affiliation(s)
- Ana F B Ferreira
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil.
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Rodrigues AC, Li X, Radecki L, Pan YZ, Winter JC, Huang M, Yu AM. MicroRNA expression is differentially altered by xenobiotic drugs in different human cell lines. Biopharm Drug Dispos 2011; 32:355-67. [PMID: 21796641 DOI: 10.1002/bdd.764] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2011] [Revised: 06/06/2011] [Accepted: 06/17/2011] [Indexed: 12/31/2022]
Abstract
Several noncoding microRNAs (miR or miRNA) have been shown to regulate the expression of drug-metabolizing enzymes and transporters. Xenobiotic drug-induced changes in enzyme and transporter expression may be associated with the alteration of miRNA expression. Therefore, this study investigated the impact of 19 xenobiotic drugs (e.g. dexamethasone, vinblastine, bilobalide and cocaine) on the expression of ten miRNAs (miR-18a, -27a, -27b, -124a, -148a, -324-3p, -328, -451, -519c and -1291) in MCF-7, Caco-2, SH-SY5Y and BE(2)-M17 cell systems. The data revealed that miRNAs were differentially expressed in human cell lines and the change in miRNA expression was dependent on the drug, as well as the type of cells investigated. Notably, treatment with bilobalide led to a 10-fold increase of miR-27a and a 2-fold decrease of miR-148a in Caco-2 cells, but no change of miR-27a and a 2-fold increase of miR-148a in MCF-7 cells. Neuronal miR-124a was generally down-regulated by psychoactive drugs (e.g. cocaine, methadone and fluoxetine) in BE(2)-M17 and SH-SY5Y cells. Dexamethasone and vinblastine, inducers of drug-metabolizing enzymes and transporters, suppressed the expression of miR-27b, -148a and -451 that down-regulate the enzymes and transporters. These findings should provide increased understanding of the altered gene expression underlying drug disposition, multidrug resistance, drug-drug interactions and neuroplasticity.
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Affiliation(s)
- Alice C Rodrigues
- Department of Pharmaceutical Sciences, University at Buffalo, SUNY, Buffalo, NY 14260, USA
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Genvigir FD, Rodrigues AC, Cerda A, Hirata MH, Curi R, Hirata RD. ABCA1 and ABCG1 expressions are regulated by statins and ezetimibe in Caco-2 cells. ACTA ACUST UNITED AC 2011; 26:33-6. [DOI: 10.1515/dmdi.2011.101] [Citation(s) in RCA: 8] [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: 11/15/2022]
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Ferreira AF, Real CC, Rodrigues AC, Alves AS, Britto LR. Moderate exercise changes synaptic and cytoskeletal proteins in motor regions of the rat brain. Brain Res 2010; 1361:31-42. [DOI: 10.1016/j.brainres.2010.09.045] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2010] [Revised: 09/13/2010] [Accepted: 09/14/2010] [Indexed: 12/24/2022]
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Abstract
IMPORTANCE OF THE FIELD The important role of drug transporters in drug absorption and disposition has been well documented. Statins are subjected to active transport of membrane proteins of the superfamilies ATP-binding cassette and solute carrier, and there is limited understanding of the mechanisms by which differences in transporter expression and activity contributes to variability of pharmacokinetics (PKs)/pharmacodynamics (PDs) of statins. AREAS COVERED IN THIS REVIEW This review aims to discuss the roles of drug transporters in the PKs and PDs of statins, and in drug interactions with statins. WHAT THE READER WILL GAIN A comprehensive summary of the literature on this subject including in vitro and in vivo observations. TAKE HOME MESSAGE In vivo and in vitro studies have shown that efflux and uptake transporters modulate the PKs/PDs of statins. Until now organic anion transporting polypeptides (OATP)1B1 variants have been considered major factors in limiting the uptake of statins and increasing statin exposure, and, consequently, increasing risk of myopathy. Further studies in pharmacogenetics and in vitro models to assess statin disposition and toxicity are required to understand the contribution of others transporters, such as multidrug resistance-associated protein (MRP)1, MRP2, breast cancer resistance protein, OATP2B1, OAT1B3 and OATP1A2, in interindividual variability to statins efficacy and safety.
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Affiliation(s)
- Alice C Rodrigues
- University of Sao Paulo, Department of Clinical and Toxicological Analysis, Faculty of Pharmaceutical Sciences, Av. Prof. Lineu Prestes, 580, bl17s, Sao Paulo 05508-000, SP, Brazil.
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Genvigir FDV, Rodrigues AC, Hirata MH, Willrich MAV, Curi R, Hirata RDC. D 004 Effects of Statins on Expression of Genes Involved in Reverse Cholesterol Transport in Hepg2 Cells. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)71698-8] [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: 11/29/2022]
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Batista JS, Oliveira AF, Rodrigues CMF, Damasceno CAR, Oliveira IRS, Alves HM, Paiva ES, Brito PD, Medeiros JMF, Rodrigues AC, Teixeira MMG. Infection by Trypanosoma vivax in goats and sheep in the Brazilian semiarid region: from acute disease outbreak to chronic cryptic infection. Vet Parasitol 2009; 165:131-5. [PMID: 19665308 DOI: 10.1016/j.vetpar.2009.07.005] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2009] [Revised: 06/18/2009] [Accepted: 07/02/2009] [Indexed: 11/26/2022]
Abstract
A study was undertaken to investigate the role of Trypanosoma vivax in sheep and goat mortality and abortions in the Brazilian semiarid region, where outbreaks had been previously reported in bovines. For this purpose, 177 goats and 248 sheep (20% of herds) were randomly sampled on four farms in the State of Paraiba in May and October 2008. The animals were screened for trypanosomes by the buffy coat technique (BCT) and PCR. Infected animals, approximately 25% in both surveys, manifested apathy, pale mucous membranes, enlarged lymph nodes, weakness, weight loss, opacity of the cornea, blindness and abortion. However, the animals with acute and severe disease showing the highest levels of parasitemia and fever, which many times resulted in death, were only detected in the first survey. These severely diseased animals exhibited progressive weight loss and had the smallest packed cell volume (PCV) values. During survey 2, done in October 2008 on the same farms, only animals with low parasitemia and normal temperatures, PCV values and body weights were detected. Therefore, animals that spontaneously recovered from acute infection developed chronic and asymptomatic disease. This finding demonstrated for the first time that sheep and goats, which are the most important livestock in the semiarid region of Brazil, may be severely injured by T. vivax infection and also play a role as asymptomatic carriers and important sources of T. vivax to ruminants in general.
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Affiliation(s)
- J S Batista
- Department of Animal Sciences, Federal Rural University of the Semi-Arid, Avenida Francisco Mota, Mossoró, RN, Brazil.
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Rodrigues AC, Hirata MH, Hirata RDC. The genetic determinants of atorvastatin response. Curr Opin Mol Ther 2007; 9:545-553. [PMID: 18041665] [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: 05/25/2023]
Abstract
The statins or HMG-CoA reductase inhibitors are considered one of the most effective classes of drugs for reducing LDL and total cholesterol. Although, statin treatment has beneficial effects in the prevention of cardiovascular disease, considerable inter-individual variation exists in response to statin therapy, as well as in the incidence of adverse effects. Genetic factors contribute to patients' inter-variability in the lipid-lowering response to statins,drug-interactions and the occurrence of muscle damage havebeen reported. However, studies investigating aspects of pharmacokinetics, pharmacodynamics and disease-related genes have found no association that could impact on the decisions to treat with statins. Improved strategies that assess the simultaneous influence of multiple relevant susceptibility factors on disease risk (eg, diet, lifestyle and gene effects) are required. Data from pharmacogenetics studies investigating the association between gene variation and drug response and/or susceptibility to adverse effects are promising and are expected to impact on the clinical treatment of hypercholesterolemia.
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Affiliation(s)
- Alice C Rodrigues
- University of Sao Paulo, Department of Clinical and Toxicological Analysis, Av Prof Lineu Prestes, 580, Sao Paulo, SP 05508-900, Brazil.
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38
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Maia Da Silva F, Junqueira ACV, Campaner M, Rodrigues AC, Crisante G, Ramirez LE, Caballero ZCE, Monteiro FA, Coura JR, Añez N, Teixeira MMG. Comparative phylogeography of Trypanosoma rangeli and Rhodnius (Hemiptera: Reduviidae) supports a long coexistence of parasite lineages and their sympatric vectors. Mol Ecol 2007; 16:3361-73. [PMID: 17688539 DOI: 10.1111/j.1365-294x.2007.03371.x] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.1] [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: 11/25/2022]
Abstract
To make reliable interpretations about evolutionary relationships between Trypanosoma rangeli lineages and their insect vectors (triatomine bugs of the genus Rhodnius) and, thus, about the determinant factors of lineage segregation within T. rangeli, we compared phylogenies of parasite isolates and vector species. Sixty-one T. rangeli isolates from invertebrate and vertebrate hosts were initially evaluated in terms of polymorphism of the spliced-leader gene (SL). Further analysis based on SL and SSUrRNA sequences from 33 selected isolates, representative of the overall phylogenetic diversity and geographical range of T. rangeli, supported four phylogenetic lineages within this species. By comparing the phylogeny of Rhodnius species with that inferred for T. rangeli isolates and through analysis of the geographical range of the isolates, we showed that there is a very significant overlap in the distribution of Rhodnius species and T. rangeli lineages. Congruence between phylogeographical analysis of both T. rangeli lineages and complexes of Rhodnius species are consistent with the hypothesis of a long coexistence of parasites and their vectors, with lineage divergence associated with sympatric species of Rhodnius apparently without association with particular vertebrate hosts. Separation of T. rangeli isolates from vectors of distinct complexes living in sympatry favours the absence of gene flow between the lineages and suggests evolution of T. rangeli lineages in independent transmission cycles, probably associated to specific Rhodnius spp. ecotopes. A polymerase chain reaction assay based on SL intergenic sequences was developed for simultaneous identification and lineage genotyping of T. rangeli in epidemiological surveys.
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Affiliation(s)
- F Maia Da Silva
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de Sao Paulo, São Paulo, SP, 05508-900, Brazil
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Cortez AP, Ventura RM, Rodrigues AC, Batista JS, Paiva F, Añez N, Machado RZ, Gibson WC, Teixeira MMG. The taxonomic and phylogenetic relationships of Trypanosoma vivax from South America and Africa. Parasitology 2006; 133:159-69. [PMID: 16650339 DOI: 10.1017/s0031182006000254] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2005] [Revised: 02/23/2006] [Accepted: 02/25/2006] [Indexed: 11/06/2022]
Abstract
The taxonomic and phylogenetic relationships of Trypanosoma vivax are controversial. It is generally suggested that South American, and East and West African isolates could be classified as subspecies or species allied to T. vivax. This is the first phylogenetic study to compare South American isolates (Brazil and Venezuela) with West/East African T. vivax isolates. Phylogeny using ribosomal sequences positioned all T. vivax isolates tightly together on the periphery of the clade containing all Salivarian trypanosomes. The same branching of isolates within T. vivax clade was observed in all inferred phylogenies using different data sets of sequences (SSU, SSU plus 5.8S or whole ITS rDNA). T. vivax from Brazil, Venezuela and West Africa (Nigeria) were closely related corroborating the West African origin of South American T. vivax, whereas a large genetic distance separated these isolates from the East African isolate (Kenya) analysed. Brazilian isolates from cattle asymptomatic or showing distinct pathology were highly homogeneous. This study did not disclose significant polymorphism to separate West African and South American isolates into different species/subspecies and indicate that the complexity of T. vivax in Africa and of the whole subgenus Trypanosoma (Duttonella) might be higher than previously believed.
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Affiliation(s)
- A P Cortez
- Department of Parasitology, University of São Paulo, SP, Brazil
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Abstract
Four experiments were conducted to evaluate the Petrifilm Staph Express Count plate (3M, Minneapolis, MN) for diagnosis of mastitis caused by Staphylococcus aureus. The objective of experiment 1 was to determine the sensitivity of Petrifilm compared with results of standard and augmented microbiological techniques, and the objective of experiment 2 was to compare microbiological results of composite and quarter milk samples processed using Petrifilm. Experiment 3 was conducted to determine the specificity of the Petrifilm method based on different interpretation parameters, and the objective of experiment 4 was to determine the repeatability of reading Petrifilm Staph Express plates. Results of standard microbiological techniques used for experiments 1 and 2 were compared with results of samples preprocessed using centrifugation or preincubation. The prevalence of recovery of Staph. aureus from milk samples processed using Petrifilm was significantly greater than the prevalence of milk samples processed using standard microbiological techniques. The sensitivity of isolation of Staph. aureus was 65.6, 75.0, 84.4, and 87.5% for standard, centrifugation, incubation, and Petrifilm methods, respectively. The occurrence of a distinct pink zone surrounding a colony was highly specific for Staph. aureus, and the specificity was 98.5 and 96.0% for experiments 3 and 4, respectively. The use of a weak pink zone to diagnose Staph. aureus resulted in a high rate of false-positive results. The interpretation of results of Petrifilm Staph Express was associated with the person that read the plates. Results from all 4 experiments indicate potential for the Petrifilm products as a diagnostic tool in some herd situations when Staph. aureus is the pathogen of interest. Results also indicate the need for standardization of interpretive criteria for personnel working with the products.
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Affiliation(s)
- B O Silva
- Department of Dairy Science, University of Wisconsin, Madison 53706, USA
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Rodrigues AC, Paiva F, Campaner M, Stevens JR, Noyes HA, Teixeira MMG. Phylogeny of Trypanosoma ( Megatrypanum ) theileri and related trypanosomes reveals lineages of isolates associated with artiodactyl hosts diverging on SSU and ITS ribosomal sequences. Parasitology 2005; 132:215-24. [PMID: 16197590 DOI: 10.1017/s0031182005008929] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2005] [Revised: 08/01/2005] [Accepted: 08/03/2005] [Indexed: 11/06/2022]
Abstract
SSU ribosomal sequences of trypanosomes from Brazilian cattle and water buffalo were used to infer phylogenetic relationships between non-pathogenic T. theileri and allied species parasitic in artiodactyls. T. theileri trypanosomes from distinct geographical regions in Brazil and from other countries were tightly clustered into the 'clade T. theileri' distant from the 'T. brucei clade' of pathogenic parasites of artiodactyls, and also distinct from trypanosomes of other mammals. The existence of this monophyletic assemblage (T. theileri clade) composed only by isolates from artiodactyl species justifies the continued recognition of the subgenus T. (Megatrypanum) with T. theileri as its type species. Phylogenies based on SSU and ITS1 ribosomal sequences produced the same branching pattern with isolates from different mammalian hosts clustered in 5 lineages: A, related to water buffalo; B, C and D, to cattle; E, to fallow deer. The pattern of host specificity allied to some congruence between host and parasite phylogenies suggested association of these trypanosomes with their respective hosts. Segregation of cattle isolates into three lineages revealed an overall geographical structure. Moreover, positioning of trypanosomes infecting tabanids in the T. theileri clade is consistent with the role of these flies as important vectors of these trypanosomes.
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Affiliation(s)
- A C Rodrigues
- Department of Parasitology, Institute of Biomedical Science, University of São Paulo, São Paulo, SP, 05508-900, Brazil
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Tavares V, Hirata RDC, Rodrigues AC, Monte O, Salles JEN, Scalissi N, Speranza AC, Hirata MH. Association between Pro12Ala polymorphism of the PPAR-gamma2 gene and insulin sensitivity in Brazilian patients with type-2 diabetes mellitus. Diabetes Obes Metab 2005; 7:605-11. [PMID: 16050954 DOI: 10.1111/j.1463-1326.2004.00453.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
AIM Peroxisome-proliferator-activated receptor-gamma2 (PPAR-gamma2) is a nuclear receptor that plays an important role in lipid metabolism and insulin sensitivity. The purpose of this study is to investigate the association of Pro12Ala polymorphism at the PPAR-gamma2 gene in Brazilian patients with type-2 diabetes mellitus (T2Dm) and controls (CG). METHODS Genomic DNA was obtained from 207 unrelated white people presenting with T2Dm and from 170 controls. Anthropometric data included body mass index and waist to hip ratio. Biochemical parameters included fasting plasma glucose, total cholesterol, high- and low-density lipoprotein cholesterol, triglycerides, glycated haemoglobin and insulin. Systolic and diastolic blood pressures were also measured. Screening for mutations in the entire coding region of the PPAR-gamma gene was performed by means of polymerase chain reaction (PCR), single-strand conformational polymorphism and sequencing. Pro12Ala polymorphism was analysed by using PCR-RFLP (restriction fragment-length polymorphism). RESULTS One base substitution was identified - a C to G substitution in exon B of the PPAR-gamma2 gene. The frequency of the Ala12 allele in T2Dm (0.09) was similar to that found in CG (0.06, p = 0.185). In the T2Dm group, Ala12 allele was associated with lower fasting plasma insulin levels (p = 0.036) and higher insulin sensitivity (p = 0.049) by means of homeostasis model assessment. Among obese people, there was no association between any of the T2Dm or obesity-related traits and the Pro12Ala polymorphism. CONCLUSIONS The results of our study suggest that people with the Ala12 allele of the PPAR-gamma2 gene could be more sensitive to insulin than those carriers of the Pro12 allele among Brazilian Caucasians.
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Affiliation(s)
- V Tavares
- Department of Clinical and Toxicological Analysis, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil.
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Rodrigues AC, Rebecchi IMM, Bertolami MC, Faludi AA, Hirata MH, Hirata RDC. High baseline serum total and LDL cholesterol levels are associated with MDR1 haplotypes in Brazilian hypercholesterolemic individuals of European descent. Braz J Med Biol Res 2005; 38:1389-97. [PMID: 16138223 DOI: 10.1590/s0100-879x2005000900014] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [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: 01/11/2023] Open
Abstract
The MDR1 gene encodes the P-glycoprotein, an efflux transporter with broad substrate specificity. P-glycoprotein has raised great interest in pharmacogenetics because it transports a variety of structurally divergent drugs, including lipid-lowering drugs. The synonymous single-nucleotide polymorphism C3435T and the nonsynonymous single-nucleotide polymorphism G2677T/A in MDR1 have been indicated as potential determinants of variability in drug disposition and efficacy. In order to evaluate the effect of G2677T/A and C3435T MDR1 polymorphisms on serum levels of lipids before and after atorvastatin administration, 69 unrelated hypercholesterolemic individuals from São Paulo city, Brazil, were selected and treated with 10 mg atorvastatin orally once daily for four weeks. MDR1 polymorphisms were analyzed by PCR-RFLP. C3435T and G2677T polymorphisms were found to be linked. The allelic frequencies for C3435T polymorphism were 0.536 and 0.464 for the 3435C and 3435T alleles, respectively, while for G2677T/A polymorphism allele frequencies were 0.580 for the 2677G allele, 0.384 for the 2677T allele and 0.036 for the 2677A allele. There was no significant relation between atorvastatin response and MDR1 polymorphisms (repeated measures ANOVA; P > 0.05). However, haplotype analysis revealed an association between T/T carriers and higher basal serum total (TC) and LDL cholesterol levels (TC: 303 +/- 56, LDL-C: 216 +/- 57 mg/dl, respectively) compared with non-T/T carriers (TC: 278 +/- 28, LDL-C: 189 +/- 24 mg/dl; repeated measures ANOVA/Tukey test; P < 0.05). These data indicate that MDR1 polymorphism may have an important contribution to the control of basal serum cholesterol levels in Brazilian hypercholesterolemic individuals of European descent.
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Affiliation(s)
- A C Rodrigues
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, SP, Brazil
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Tavares V, Hirata RDC, Rodrigues AC, Monte O, Salles JEN, Scallissi N, Speranza AC, Gomes S, Hirata MH. Effect of the peroxisome proliferator-activated receptor-gamma C161T polymorphism on lipid profile in Brazilian patients with Type 2 diabetes mellitus. J Endocrinol Invest 2005; 28:129-36. [PMID: 15887858 DOI: 10.1007/bf03345355] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
AIM The aim of the present study was to examine the effects of the C161T polymorphism of the peroxisome proliferator-activated receptor gamma (PPARgamma) gene in Brazilian subjects with Type 2 diabetes mellitus (T2DM) and controls residing in Sao Paulo City, Brazil. METHODS Genomic DNA was obtained from 207 patients with T2DM and 170 unrelated normoglycemic individuals (CG). Anthropometric data included: body mass index, waist, hip, waist-to-hip ratio; biochemical parameters: fasting plasma glucose, total cholesterol, HDL- and LDL-cholesterol, triglycerides, glycated hemoglobin and insulin. Systolic and diastolic blood pressure was also measured. Screening for mutations in the entire coding region of the PPARgamma gene was carried out by PCR, single strand conformational polymorphism analysis (SSCP) and sequencing. C161T polymorphism was analyzed by PCR-RFLP. RESULTS The C161T polymorphism was the only variant found in exon 6 of the PPARgamma gene. The frequency of the 161T allele in T2DM (0.10) was similar to that found in CG (0.07, p=0.210). Serum triglycerides (p=0.040), VLDL-cholesterol (p=0.040) and Atherogenic Index of Plasma (AIP; p=0.003) were significantly lower in 161T allele carriers than non-carriers in women of the T2DM group. CONCLUSIONS Our results show that the C161T polymorphism in the PPARgamma gene is not associated with variables related to T2DM or insulin resistance in the Brazilian population. However, a reduction of serum triglycerides and AIP was observed in women with 161T allele of the C161T polymorphism of the PPARgamma gene.
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Affiliation(s)
- V Tavares
- Department of Clinical and Toxicological Analysis, School of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo, Brazil.
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Maia da Silva F, Rodrigues AC, Campaner M, Takata CSA, Brigido MC, Junqueira ACV, Coura JR, Takeda GF, Shaw JJ, Teixeira MMG. Randomly amplified polymorphic DNA analysis of Trypanosoma rangeli and allied species from human, monkeys and other sylvatic mammals of the Brazilian Amazon disclosed a new group and a species-specific marker. Parasitology 2004; 128:283-94. [PMID: 15074877 DOI: 10.1017/s0031182003004554] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.7] [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: 11/05/2022]
Abstract
We characterized 14 trypanosome isolates from sylvatic mammals (9 from primates, 1 from sloth, 2 from anteaters and 2 from opossum) plus 2 human isolates of Brazilian Amazon. These isolates were proven to be Trypanosoma rangeli by detection of metacyclic trypomastigotes in the salivary glands of triatomines and by a specific PCR assay. Polymorphism determined by randomly amplified polymorphic DNA (RAPD) revealed that most (12) of the Brazilian T. rangeli isolates from the Amazon differed from those of other geographical regions, thus constituting a new group of T. rangeli. Four Brazilian isolates clustered together with a previously described group (A) that was described as being composed of being isolates from Colombia and Venezuela. Isolates from Panama and El Salvador form another group. The isolate from Southern Brazil did not cluster to any of the above-mentioned groups. This is the first study that assesses the genetic relationship of a large number of isolates from wild mammals, especially from non-human primates. A randomly-amplified DNA fragment (Tra625) exclusive to T. rangeli was used to develop a PCR assay able to detect all T. rangeli groups.
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Affiliation(s)
- F Maia da Silva
- Department of Parasitology, Institute of Biomedical Science, University of São Paulo, São Paulo, 05508-900, Brazil
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Rodrigues AC, Campaner M, Takata CSA, Dell' Porto A, Milder RV, Takeda GF, Teixeira MMG. Brazilian isolates of Trypanosoma (Megatrypanum) theileri: diagnosis and differentiation of isolates from cattle and water buffalo based on biological characteristics and randomly amplified DNA sequences. Vet Parasitol 2004; 116:185-207. [PMID: 14559162 DOI: 10.1016/s0304-4017(03)00236-x] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [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: 11/19/2022]
Abstract
We detected and cultivated isolates of Trypanosoma (Megatrypanum) theileri from cattle and water buffaloes in São Paulo state, southeastern Brazil, which were characterized by comparing morphological, growth and molecular features. Although isolates from cattle and water buffalo were morphologically indistinguishable, they differed in their growth characteristics. A dendrogram based on randomly amplified polymorphic DNA (RAPD) patterns indicated close-genetic relationships among all isolates from both species, which were all tightly clustered together and distant from Megatrypanum species from wild mammals. In addition, isolates within the T. theileri-cluster were clearly segregated into two host-associated groups. The sequence of a synapomorphic RAPD-derived DNA fragment (Tth625), which was shared by all T. theileri trypanosomes from cattle and buffalo but not detected in any of 13 other trypanosome species, was used as target for a conventional T. theileri-specific PCR assay. We also defined RAPD fragments (Tthc606 and Tthb606) that distinguished cattle from buffalo isolates. Thus, distinct growth features and genetic variability distinguished between isolates from cattle and water buffaloes of the same geographic origin, suggesting an association of these isolates with their host species. The trypanosomes from water buffalo reported here are the first T. theileri-like isolates from the Asiatic buffalo (Bubalus bubalis) to be continuously cultured and compared with cattle isolates using biological and molecular methods.
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Affiliation(s)
- A C Rodrigues
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, Av Prof Lineu Prestes 1374, 05508-900 São Paulo, SP, Brazil
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Freire Cerqueira N, Hussni CA, Bonetti Yoshida W, Swain Müller S, Sequeira JL, Rodrigues AC, Mattar L, Crocci AJ. Effect of diclofenac sodium on the healing process of end-to-end anastomosis in carotid arteries of rabbits. Histopathological and biomechanical studies. INT ANGIOL 2003; 22:431-7. [PMID: 15153830] [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: 04/29/2023]
Abstract
AIM Diclofenac sodium is a non-steroidal anti-inflammatory drug commonly used to attenuate painful inflammatory reactions in surgery. However, it may delay healing in the skin and gastrointestinal tract. The aim of this study was to evaluate the influence of Diclofenac in vascular healing. METHODS Ninety rabbits had their carotid arteries sectioned and reconstructed by end-to-end anastomosis with interrupted sutures. The animals were randomly allocated into 3 groups of 30 each and treated by intramuscular route with saline (control), 5 mg/kg/day of diclofenac sodium (DS-5), and 10 mg/kg/day of diclofenac sodium (DS-10). Treatment began on the day of surgery and lasted 4 days. Angiography, biomechanical properties (failure load, failure elongation, yield point, yield point elongation, and stiffness were obtained from the load/elongation curve), macroscopic and histological examinations (hematoxylin-eosin, Masson, Calleja, Picrossirius-red), and scanning electron microscopy were studied in both arteries on the 3rd and 15th postoperative days. RESULTS No significant differences in biomechanical properties were observed either in the 3 groups or the experimental times. The carotid artery healing process was similar in the 3 groups. CONCLUSION Diclofenac sodium did not cause alterations nor delayed carotid artery healing.
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Affiliation(s)
- N Freire Cerqueira
- Veterinary Surgery and Anesthesiology, School of Veterinary Medicine and Animal Science, São Paulo State University, São Paulo, Brazil.
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Roque DD, Andreo JC, De Oliveira JA, Roque JS, Buchaim RL, Rodrigues AC. Morphometry and histochemistry of the semitendinosus muscle of tufted capuchin monkeys (Cebus apella Linnaeus, 1758). Anat Histol Embryol 2003; 32:207-11. [PMID: 12919070 DOI: 10.1046/j.1439-0264.2003.00442.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [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: 11/20/2022]
Abstract
Considering monkeys are animals closely related to the human, and semitendinosus muscle has been used in many postural research experiments, we have decided to study its histochemical characteristics. Samples were removed from the proximal, middle and distal regions of the semitendinosus muscles of five adult male tufted capuchin monkeys and observed for reaction with m-ATPase (with alkaline and acid pre-incubation), nicotinamide adenine dinucleotide tetrazolium reductase, and haematoxylin and eosin. The muscle fibres were classified as fast glycolytic (FG), fast oxidative glycolytic (FOG) and slow oxidative (SO) and quantified in terms of frequency and area. The three regions of the semitendinosus muscle showed no significant differences in frequency or area of the respective fibre types, and therefore the muscle can be considered histoenzymologically homogeneous. FG fibres presented higher frequencies and larger areas. The sum of FOG and SO fibres was 57.5%, suggesting that the semitendinosus muscle of the tufted capuchin monkey is adapted to an action involved in posture maintenance and in long arboreal dislocation. The present data agrees with the notion of differentiated quadrupedalism in some primates, which support a lower percentage of their weight on the fore limbs.
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Affiliation(s)
- D D Roque
- University of Marília, UNESP, São Paulo, Brazil
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Rodrigues AC, Wuertz S, Brito AG, Melo LF. Three-dimensional distribution of GFP-labeled Pseudomonas putida during biofilm formation on solid PAHs assessed by confocal laser scanning microscopy. Water Sci Technol 2003; 47:139-142. [PMID: 12701919] [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: 05/24/2023]
Abstract
Confocal laser scanning microscopy was used to monitor the colonization pattern of the gfp-labeled derivative strain of Pseudomonas putida ATCC 17514 on fluorene and phenanthrene crystals. The in situ experiments showed that P. putida tends to grow directly on phenanthrene, forming a biofilm on accessible crystalline surfaces. On the other hand, no significant biofilm formation was observed in the presence of fluorene. The results obtained showed that substrate properties affected bacterial strategy regarding uptake.
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Affiliation(s)
- A C Rodrigues
- Universidade do Minho, Centro de Engenharia Biológica/BQF, 4710-057 Braga, Portugal
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Ferreira FM, Matos JS, Rodrigues AC, do Monte HM. Performance of partially separate sewer systems and impacts on receiving waters. Water Sci Technol 2002; 45:273-279. [PMID: 11905442] [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: 05/23/2023]
Abstract
The aim of this document is to present and discuss the results of the experimental work undertaken in Laje stream, in a section near the village of Oeiras in Portugal. The work was developed with the main objective of characterising stormwater quality in Portuguese drainage systems, and to predict the effects of the performance of partially separate sewer systems on receiving waters. For this purpose, volume and characteristics of stormwater carried by a partially separated sewer system were estimated, both in terms of flow and Chemical Oxygen Demand (COD) loads. The study also analyses the eventual implementation of non-conventional solutions, as a way of reducing problems of bacteriological contamination of seawaters. This aspect is particularly important in Portugal, where the population is mainly concentrated in urban areas located down-stream of important drainage basins, close to the coastline. Therefore, sanitary sewer overflows discharging directly into receiving waters are frequent, with possible consequences in terms of bacteriological contamination of bathing areas. Based on experimental research and available data it was possible to collect informations regarding stormwater average COD and overflow coliform loads, and the occurrence of first flush effects.
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Affiliation(s)
- F M Ferreira
- Instituto Politécnico de Setúbal. R. Stinville, Barreiro, Portugal
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