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Anjos TRD, Castro VS, Machado Filho ES, Suffys PN, Gomes HM, Duarte RS, Figueiredo EEDS, Carvalho RCT. Genomic analysis of Mycobacterium tuberculosis variant bovis strains isolated from bovine in the state of Mato Grosso, Brazil. Front Vet Sci 2022; 9:1006090. [DOI: 10.3389/fvets.2022.1006090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 10/28/2022] [Indexed: 11/18/2022] Open
Abstract
The species Mycobacterium tuberculosis variant bovis (M. tuberculosis var. bovis) is associated with tuberculosis, mainly in cattle and buffaloes. This pathogen has the potential to infect other mammals, including humans. Tuberculosis caused by M. tuberculosis var. bovis is a zoonosis clinically identical to tuberculosis caused by Mycobacterium tuberculosis, and the recommended treatment in humans results in the use of antibiotics. In this study, we used the whole genome sequencing (WGS) methodology Illumina NovaSeq 6000 System platform to characterize the genome of M. tuberculosis var. bovis in cattle circulating in Mato Grosso, identify mutations related to drug resistance genes, compare with other strains of M. tuberculosis var. bovis brazilian and assess potential drug resistance. Four isolates of M. tuberculosis var. bovis of cattle origin representing the main livestock circuits, which had been more prevalent in previous studies in the state of Mato Grosso, were selected for the genomic study. The genome sizes of the sequenced strains ranged from 4,306,423 to 4,332,964 bp, and the GC content was 65.6%. The four strains from Mato Grosso presented resistance genes to pncA (pyrazinamide), characterized as drug-resistant strains. In addition to verifying several point mutations in the pncA, rpsA, rpsL, gid, rpoB, katG, gyrB, gyrA, tlyA, embA, embB, embC, fgd, fbiB, and fbiC genes, these genes were similar to antibiotic resistance in more than 92% of the Brazilian strains. Therefore, our results indicated a high genetic diversity between our isolates and other M. tuberculosis var. bovis isolated in Brazil. Thus, multiple transmission routes of this pathogen may be present in the production chain. So, to achieve a bovine tuberculosis-free health status, the use of the WGS as a control and monitoring tool will be crucial to determine these transmission routes.
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2
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Zalona Fernandes HM, Miranda KR, da Silva Dias RC, Alviano DS, Duarte RS, da Silva Carvalho AC. The challenges of education in a continental country in the face of new severe acute respiratory coronavirus virus 2 (SARS-CoV-2) variant circulation. Infect Control Hosp Epidemiol 2022; 43:1537-1539. [PMID: 34165056 PMCID: PMC8280394 DOI: 10.1017/ice.2021.291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 06/05/2021] [Indexed: 12/01/2022]
Affiliation(s)
| | - Karla Rodrigues Miranda
- Institute of Microbiology, Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Daniela Sales Alviano
- Institute of Microbiology, Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Rafael Silva Duarte
- Institute of Microbiology, Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
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3
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Zalona Fernandes HM, da Silva Dias RC, Carvalho ACDS, Duarte RS, Alviano DS. The return of university classes in an emerging country during the COVID-19 pandemic. Pathog Glob Health 2021; 116:67-69. [PMID: 34726581 DOI: 10.1080/20477724.2021.1997488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
| | | | | | - Rafael Silva Duarte
- Institute of Microbiology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Daniela Sales Alviano
- Institute of Microbiology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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4
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Souza TFG, Pierdoná TM, Macedo FS, Aquino PEA, Rangel GFP, Duarte RS, Silva LMA, Viana GSB, Alves APNN, Montenegro RC, Wilke DV, Silveira ER, Alencar NMN. A proline derivative-enriched methanol fraction from Sideroxylon obtusifolium leaves (MFSOL) stimulates human keratinocyte cells and exerts a healing effect in a burn wound model. ACTA ACUST UNITED AC 2021; 54:e10700. [PMID: 34076141 PMCID: PMC8186379 DOI: 10.1590/1414-431x2021e10700] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 04/07/2021] [Indexed: 11/21/2022]
Abstract
It was previously demonstrated that the methanol fraction of Sideroxylon obtusifolium (MFSOL) promoted anti-inflammatory and healing activity in excisional wounds. Thus, the present work investigated the healing effects of MFSOL on human keratinocyte cells (HaCaT) and experimental burn model injuries. HaCaT cells were used to study MFSOL's effect on cell migration and proliferation rates. Female Swiss mice were subjected to a second-degree superficial burn protocol and divided into four treatment groups: Vehicle, 1.0% silver sulfadiazine, and 0.5 or 1.0% MFSOL Cream (CrMFSOL). Samples were collected to quantify the inflammatory mediators, and histological analyses were performed after 3, 7, and 14 days. The results showed that MFSOL (50 μg/mL) stimulated HaCaT cells by increasing proliferation and migration rates. Moreover, 0.5% CrMFSOL attenuated myeloperoxidase (MPO) activity and also stimulated the release of interleukin (IL)-1β and IL-10 after 3 days of treatment. CrMFSOL (0.5%) also enhanced wound contraction, promoted improvement of tissue remodeling, and increased collagen production after 7 days and VEGF release after 14 days. Therefore, MFSOL stimulated human keratinocyte (HaCaT) cells and improved wound healing via modulation of inflammatory mediators of burn injuries.
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Affiliation(s)
- T F G Souza
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - T M Pierdoná
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil.,Faculty of Kinesiology and Recreation Management, Children's Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, Manitoba, Canada
| | - F S Macedo
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - P E A Aquino
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - G F P Rangel
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - R S Duarte
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - L M A Silva
- Embrapa Agroindustria Tropical, Fortaleza, CE, Brasil
| | - G S B Viana
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - A P N N Alves
- Departamento de Clínica Odontológica, Faculdade de Farmácia, Odontologia e Enfermagem, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - R C Montenegro
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - D V Wilke
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - E R Silveira
- Departamento de Química Orgânica e Inorgânica, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - N M N Alencar
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
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5
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Conceição EC, Salvato RS, Gomes KM, Guimarães AEDS, da Conceição ML, Souza e Guimarães RJDP, Sharma A, Furlaneto IP, Barcellos RB, Bollela VR, Anselmo LMP, Sisco MC, Niero CV, Ferrazoli L, Refrégier G, Lourenço MCDS, Gomes HM, de Brito AC, Catanho M, Duarte RS, Suffys PN, Lima KVB. Molecular epidemiology of Mycobacterium tuberculosis in Brazil before the whole genome sequencing era: a literature review. Mem Inst Oswaldo Cruz 2021; 116:e200517. [PMID: 33729319 PMCID: PMC7976556 DOI: 10.1590/0074-02760200517] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 02/11/2021] [Indexed: 11/22/2022] Open
Abstract
Molecular-typing can help in unraveling epidemiological scenarios and improvement for disease control strategies. A literature review of Mycobacterium tuberculosis transmission in Brazil through genotyping on 56 studies published from 1996-2019 was performed. The clustering rate for mycobacterial interspersed repetitive units - variable tandem repeats (MIRU-VNTR) of 1,613 isolates were: 73%, 33% and 28% based on 12, 15 and 24-loci, respectively; while for RFLP-IS6110 were: 84% among prison population in Rio de Janeiro, 69% among multidrug-resistant isolates in Rio Grande do Sul, and 56.2% in general population in São Paulo. These findings could improve tuberculosis (TB) surveillance and set up a solid basis to build a database of Mycobacterium genomes.
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Affiliation(s)
- Emilyn Costa Conceição
- Fundação Oswaldo Cruz-Fiocruz, Instituto Nacional de Infectologia
Evandro Chagas, Programa de Pós-Graduação em Pesquisa Clínica e Doenças Infecciosas,
Rio de Janeiro, RJ, Brasil
- Fundação Oswaldo Cruz-Fiocruz, Instituto Nacional de Infectologia
Evandro Chagas, Laboratório de Bacteriologia e Bioensaios em Micobactérias, Rio de
Janeiro, RJ, Brasil
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório
de Biologia Molecular Aplicada a Micobactérias, Rio de Janeiro, RJ, Brasil
| | - Richard Steiner Salvato
- Universidade Federal do Rio Grande do Sul, Programa de Pós-Graduação
em Biologia Celular e Molecular, Porto Alegre, RS, Brasil
- Secretaria Estadual de Saúde do Rio Grande do Sul, Centro Estadual
de Vigilância em Saúde, Centro de Desenvolvimento Científico e Tecnológico, Porto
Alegre, RS, Brasil
| | - Karen Machado Gomes
- Fundação Oswaldo Cruz-Fiocruz, Escola Nacional de Saúde Pública
Sergio Arouca, Centro de Referência Professor Hélio Fraga, Laboratório de Referência
Nacional para Tuberculose e outras Micobacterioses, Rio de Janeiro, RJ, Brasil
| | - Arthur Emil dos Santos Guimarães
- Universidade do Estado do Pará, Instituto de Ciências Biológicas e
da Saúde, Pós-Graduação Biologia Parasitária na Amazônia, Belém, PA, Brasil
- Instituto Evandro Chagas, Seção de Bacteriologia e Micologia,
Ananindeua, PA, Brasil
| | - Marília Lima da Conceição
- Universidade do Estado do Pará, Instituto de Ciências Biológicas e
da Saúde, Pós-Graduação Biologia Parasitária na Amazônia, Belém, PA, Brasil
- Instituto Evandro Chagas, Seção de Bacteriologia e Micologia,
Ananindeua, PA, Brasil
| | | | - Abhinav Sharma
- International Institute of Information Technology, Department of
Data Science, Bangalore, India
| | | | - Regina Bones Barcellos
- Secretaria Estadual de Saúde do Rio Grande do Sul, Centro Estadual
de Vigilância em Saúde, Centro de Desenvolvimento Científico e Tecnológico, Porto
Alegre, RS, Brasil
| | - Valdes Roberto Bollela
- Universidade de São Paulo, Departamento de Clínica Médica da
Faculdade de Medicina de Ribeirão Preto, Ribeirão Preto, SP, Brasil
| | - Lívia Maria Pala Anselmo
- Universidade de São Paulo, Departamento de Clínica Médica da
Faculdade de Medicina de Ribeirão Preto, Ribeirão Preto, SP, Brasil
| | - Maria Carolina Sisco
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório
de Biologia Molecular Aplicada a Micobactérias, Rio de Janeiro, RJ, Brasil
- Universidade Federal do Rio de Janeiro, Instituto de Microbiologia
Paulo de Góes, Laboratório de Micobactérias, Rio de Janeiro, RJ, Brasil
| | - Cristina Viana Niero
- Universidade Federal de São Paulo, Departamento de Microbiologia,
Imunologia e Parasitologia, São Paulo, SP, Brasil
| | - Lucilaine Ferrazoli
- Instituto Adolfo Lutz, Centro de Bacteriologia, Núcleo de
Tuberculose e Micobacterioses, São Paulo, SP, Brasil
| | - Guislaine Refrégier
- Universit e Paris-Saclay, Ecologie Systematique Evolution, Centre
National de la Recherche Scientifique, AgroParisTech, Orsay, France
| | - Maria Cristina da Silva Lourenço
- Fundação Oswaldo Cruz-Fiocruz, Instituto Nacional de Infectologia
Evandro Chagas, Laboratório de Bacteriologia e Bioensaios em Micobactérias, Rio de
Janeiro, RJ, Brasil
| | - Harrison Magdinier Gomes
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório
de Biologia Molecular Aplicada a Micobactérias, Rio de Janeiro, RJ, Brasil
| | - Artemir Coelho de Brito
- Coordenação Geral de Vigilância das Doenças de Transmissão
Respiratória de Condições Crônicas, Brasília, DF, Brasil
| | - Marcos Catanho
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório
de Genética Molecular de Microrganismos, Rio de Janeiro, RJ, Brasil
| | - Rafael Silva Duarte
- Universidade Federal do Rio de Janeiro, Instituto de Microbiologia
Paulo de Góes, Laboratório de Micobactérias, Rio de Janeiro, RJ, Brasil
| | - Philip Noel Suffys
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório
de Biologia Molecular Aplicada a Micobactérias, Rio de Janeiro, RJ, Brasil
| | - Karla Valéria Batista Lima
- Universidade do Estado do Pará, Instituto de Ciências Biológicas e
da Saúde, Pós-Graduação Biologia Parasitária na Amazônia, Belém, PA, Brasil
- Instituto Evandro Chagas, Seção de Bacteriologia e Micologia,
Ananindeua, PA, Brasil
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6
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Sisco MC, Gomes da Silva M, Distasio de Carvalho L, Dias Campos CE, De Souza Caldas PC, Lopez B, Argüelles C, Carvalho AC, de Waard J, Suffys P, Silva Duarte R. Phenotypic and Genotypic Drug Susceptibility Assessment of Mycobacterium bovis Bacillus Calmette-Guérin Clinical Strains. Infect Drug Resist 2021; 14:459-466. [PMID: 33574685 PMCID: PMC7872933 DOI: 10.2147/idr.s248096] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Accepted: 06/18/2020] [Indexed: 11/28/2022] Open
Abstract
PURPOSE Mycobacterium bovis Bacillus Calmette-Guérin (BCG) is the only vaccine licensed against tuberculosis. Despite the protection offered by the vaccine, in some circumstances children and immunocompromised individuals can develop associated infections, known as BCGitis. Drug susceptibility patterns of BCG clinical strains have rarely been described. We aimed to describe the susceptibility pattern of BCG clinical strains isolated in two different countries. METHODS We performed culture-based drug susceptibility testing of thirty one BCG strains isolated from patients in Brazil (n=5, 16%) and Argentina (n=26, 84%) using the broth micro-dilution method (phenotypic method). Final antibiotic concentrations for susceptibility testing ranged from 0.5 to 16 mg/L for amikacin, 0.3125 to 10 mg/L for ethambutol, 0.05 to 1.6 mg/L for isoniazid and 0.25 to 8 mg/L for rifampicin, streptomycin and ofloxacin. Additionally, we compared the results with genetic data obtained by whole genome sequencing. RESULTS By using the phenotypic method we detected one strain resistant to ethambutol, three strains resistant to rifampicin and one resistant to isoniazid. Additionally, two strains that were phenotypically resistant to both isoniazid and rifampicin carried mutations in the katG and rpoB genes simultaneously. CONCLUSION There is evidence of the emergence of BCG-resistant strains isolated from vaccine-related complications. We recommend drug susceptibility testing of the BCG strain causing the infection in order to prevent treatment failure.
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Affiliation(s)
- Maria Carolina Sisco
- Laboratório de Micobactérias, Departamento de Microbiologia Médica, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Laboratório de Biologia Molecular Aplicada às Micobactérias, Instituto Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Marlei Gomes da Silva
- Laboratório de Micobactérias, Departamento de Microbiologia Médica, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luciana Distasio de Carvalho
- Laboratório de Referência Nacional Para Tuberculose e Micobacterioses, Centro de Referência Professor Hélio Fraga, Escola Nacional de Saúde Pública, Rio de Janeiro, Brazil
| | - Carlos Eduardo Dias Campos
- Laboratório de Referência Nacional Para Tuberculose e Micobacterioses, Centro de Referência Professor Hélio Fraga, Escola Nacional de Saúde Pública, Rio de Janeiro, Brazil
| | - Paulo Cesar De Souza Caldas
- Laboratório de Referência Nacional Para Tuberculose e Micobacterioses, Centro de Referência Professor Hélio Fraga, Escola Nacional de Saúde Pública, Rio de Janeiro, Brazil
| | - Beatriz Lopez
- Instituto Nacional de Enfermedades Infecciosas, Buenos Aires, Argentina
| | - Claudia Argüelles
- Instituto Nacional de Producción de Biológicos – ANLIS Carlos G Malbrán, Buenos Aires, Argentina
| | - Ana Carolina Carvalho
- Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Campus Macaé, Rio de Janeiro, Brazil
| | - Jacobus de Waard
- Departamento de Tuberculosis, Instituto Autónomo de Biomedicina Dr. Jacinto Convit, Caracas, Venezuela
- One Health Research Group, Facultad de Ciencias de La Salud, Universidad de Las Américas, Quito, Ecuador
| | - Philip Suffys
- Laboratório de Biologia Molecular Aplicada às Micobactérias, Instituto Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Rafael Silva Duarte
- Laboratório de Micobactérias, Departamento de Microbiologia Médica, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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7
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Menardo F, Rutaihwa LK, Zwyer M, Borrell S, Comas I, Conceição EC, Coscolla M, Cox H, Joloba M, Dou HY, Feldmann J, Fenner L, Fyfe J, Gao Q, García de Viedma D, Garcia-Basteiro AL, Gygli SM, Hella J, Hiza H, Jugheli L, Kamwela L, Kato-Maeda M, Liu Q, Ley SD, Loiseau C, Mahasirimongkol S, Malla B, Palittapongarnpim P, Rakotosamimanana N, Rasolofo V, Reinhard M, Reither K, Sasamalo M, Silva Duarte R, Sola C, Suffys P, Batista Lima KV, Yeboah-Manu D, Beisel C, Brites D, Gagneux S. Local adaptation in populations of Mycobacterium tuberculosis endemic to the Indian Ocean Rim. F1000Res 2021; 10:60. [PMID: 33732436 PMCID: PMC7921886 DOI: 10.12688/f1000research.28318.2] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/22/2021] [Indexed: 12/12/2022] Open
Abstract
Background: Lineage 1 (L1) and 3 (L3) are two lineages of the Mycobacterium tuberculosis complex (MTBC) causing tuberculosis (TB) in humans. L1 and L3 are prevalent around the rim of the Indian Ocean, the region that accounts for most of the world's new TB cases. Despite their relevance for this region, L1 and L3 remain understudied. Methods: We analyzed 2,938 L1 and 2,030 L3 whole genome sequences originating from 69 countries. We reconstructed the evolutionary history of these two lineages and identified genes under positive selection. Results: We found a strongly asymmetric pattern of migration from South Asia toward neighboring regions, highlighting the historical role of South Asia in the dispersion of L1 and L3. Moreover, we found that several genes were under positive selection, including genes involved in virulence and resistance to antibiotics. For L1 we identified signatures of local adaptation at the esxH locus, a gene coding for a secreted effector that targets the human endosomal sorting complex, and is included in several vaccine candidates. Conclusions: Our study highlights the importance of genetic diversity in the MTBC, and sheds new light on two of the most important MTBC lineages affecting humans.
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Affiliation(s)
- Fabrizio Menardo
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland
| | - Liliana K Rutaihwa
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland
| | - Michaela Zwyer
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland
| | - Sonia Borrell
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland
| | - Iñaki Comas
- Institute of Biomedicine of Valencia, Valencia, Spain
| | - Emilyn Costa Conceição
- Instituto de Microbiologia, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | | | - Helen Cox
- Institute of Infectious Diseases and Molecular Medicine, University of Cape Town, Cape Town, South Africa
| | - Moses Joloba
- Department of Medical Microbiology, Makerere University, Kampala, Uganda
| | - Horng-Yunn Dou
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institute, Zhunan, Taiwan
| | - Julia Feldmann
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland
| | - Lukas Fenner
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland.,Institute for Social and Preventive Medicine, University of Bern, Bern, Switzerland
| | - Janet Fyfe
- Victorian Infectious Diseases Reference Laboratory, Melbourne, Australia
| | - Qian Gao
- Institute of Medical Microbiology, School of Basic Medical Science of Fudan University, Shanghai, China
| | - Darío García de Viedma
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.,CIBER Enfermedades Respiratorias, Madrid, Spain.,Servicio de Microbiología Clínica y Enfermedades Infecciosas, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Alberto L Garcia-Basteiro
- Barcelona Institute for Global Health, Barcelona, Spain.,Centro de Investigação em Saúde de Manhiça, Maputo, Mozambique
| | - Sebastian M Gygli
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland
| | - Jerry Hella
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland.,Ifakara Health Institute, Bagamoyo, Tanzania
| | - Hellen Hiza
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland
| | - Levan Jugheli
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland
| | - Lujeko Kamwela
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland.,Ifakara Health Institute, Bagamoyo, Tanzania
| | | | - Qingyun Liu
- Institute of Medical Microbiology, School of Basic Medical Science of Fudan University, Shanghai, China
| | - Serej D Ley
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland.,Papua New Guinea Institute of Medical Research, Goroka, Papua New Guinea
| | - Chloe Loiseau
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland
| | - Surakameth Mahasirimongkol
- Department of Microbiology, Mahidol University, Bangkok, Thailand.,National Science and Technology Development Agency, Bangkok, Thailand
| | - Bijaya Malla
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland
| | - Prasit Palittapongarnpim
- Department of Microbiology, Mahidol University, Bangkok, Thailand.,National Science and Technology Development Agency, Bangkok, Thailand
| | | | | | - Miriam Reinhard
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland
| | - Klaus Reither
- University of Basel, Basel, Switzerland.,Department of Medicine, Swiss Tropical and Public Health Institute, Basel, Switzerland
| | - Mohamed Sasamalo
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland.,Ifakara Health Institute, Bagamoyo, Tanzania
| | - Rafael Silva Duarte
- Instituto de Microbiologia, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Christophe Sola
- Université Paris-Saclay, Paris, France.,INSERM-Université de Paris, Paris, France
| | - Philip Suffys
- Laboratório de Biologia Molecular Aplicada a Micobactérias, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Karla Valeria Batista Lima
- Centro de Ciências Biológicas e da Saúde, Universidade do Estado do Pará, Belém, Brazil.,Instituto Evandro Chagas, Ananindeua, Brazil
| | - Dorothy Yeboah-Manu
- Noguchi Memorial Institute for Medical Research, University of Ghana, Accra, Ghana
| | - Christian Beisel
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland
| | - Daniela Brites
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland
| | - Sebastien Gagneux
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland
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8
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Guimarães AEDS, Sharma A, Furlaneto IP, Rutaihwa L, Cardoso JF, da Conceição ML, Spinassé LB, Machado E, Lopes ML, Duarte RS, Gagneux S, Suffys PN, Lima KVB, Conceição EC. Evaluation of drug susceptibility profile of Mycobacterium tuberculosis Lineage 1 from Brazil based on whole genome sequencing and phenotypic methods. Mem Inst Oswaldo Cruz 2021; 115:e200520. [PMID: 33533871 PMCID: PMC7849176 DOI: 10.1590/0074-02760200520] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Accepted: 11/25/2020] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND The evaluation of procedures for drug susceptibility prediction of Mycobacterium tuberculosis based on genomic data against the conventional reference method test based on culture is realistic considering the scenario of growing number of tools proposals based on whole-genome sequences (WGS). OBJECTIVES This study aimed to evaluate drug susceptibility testing (DST) outcome based on WGS tools and the phenotypic methods performed on isolates of M. tuberculosis Lineage 1 from the state of Pará, Brazil, generally associated with low levels of drug resistance. METHODOLOGY Culture based DST was performed using the Proportion Method in Löwenstein-Jensen medium on 71 isolates that had been submitted to WGS. We analysed the seven main genome sequence-based tools for resistance and lineage prediction applied to M. tuberculosis and for comparison evaluation we have used the Kappa concordance test. FINDINGS When comparing the WGS-based tools against the DST, we observed the highest level of agreement using TB-profiler. Among the tools, TB-profiler, KvarQ and Mykrobe were those which identified the largest number of TB-MDR cases. Comparing the four most sensitive tools regarding resistance prediction, agreement was observed for 43 genomes. MAIN CONCLUSIONS Drug resistance profiling using next-generation sequencing offers rapid assessment of resistance-associated mutations, therefore facilitating rapid access to effective treatment.
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Affiliation(s)
- Arthur Emil dos Santos Guimarães
- Universidade do Estado do Pará, Instituto de Ciências Biológicas e
da Saúde, Pós-Graduação em Biologia Parasitária na Amazônia, Belém, PA, Brasil
- Instituto Evandro Chagas, Seção de Bacteriologia e Micologia,
Ananindeua, PA, Brasil
| | - Abhinav Sharma
- International Institute of Information Technology, Department of
Data Science, Bangalore, India
| | - Ismari Perini Furlaneto
- Universidade do Estado do Pará, Instituto de Ciências Biológicas e
da Saúde, Pós-Graduação em Biologia Parasitária na Amazônia, Belém, PA, Brasil
| | - Liliana Rutaihwa
- University of Basel, Basel, Switzerland
- Swiss Tropical & Public Health Institute, Basel,
Switzerland
| | | | - Marília Lima da Conceição
- Universidade do Estado do Pará, Instituto de Ciências Biológicas e
da Saúde, Pós-Graduação em Biologia Parasitária na Amazônia, Belém, PA, Brasil
- Instituto Evandro Chagas, Seção de Bacteriologia e Micologia,
Ananindeua, PA, Brasil
| | | | - Edson Machado
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório
de Genética Molecular de Microrganismos, Rio de Janeiro, RJ, Brasil
| | - Maria Luiza Lopes
- Universidade do Estado do Pará, Instituto de Ciências Biológicas e
da Saúde, Pós-Graduação em Biologia Parasitária na Amazônia, Belém, PA, Brasil
| | - Rafael Silva Duarte
- Universidade Federal do Rio de Janeiro, Instituto de Microbiologia
Professor Paulo de Góes, Laboratório de Micobactérias, Rio de Janeiro, RJ,
Brasil
| | - Sebastien Gagneux
- University of Basel, Basel, Switzerland
- Swiss Tropical & Public Health Institute, Basel,
Switzerland
| | - Philip Noel Suffys
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório
de Biologia Molecular Aplicada a Micobactérias, Rio de Janeiro, RJ, Brasil
| | - Karla Valéria Batista Lima
- Universidade do Estado do Pará, Instituto de Ciências Biológicas e
da Saúde, Pós-Graduação em Biologia Parasitária na Amazônia, Belém, PA, Brasil
- Instituto Evandro Chagas, Seção de Bacteriologia e Micologia,
Ananindeua, PA, Brasil
| | - Emilyn Costa Conceição
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório
de Biologia Molecular Aplicada a Micobactérias, Rio de Janeiro, RJ, Brasil
- Fundação Oswaldo Cruz-Fiocruz, Instituto Nacional de Infectologia
Evandro Chagas, Programa de Pós-Graduação em Pesquisa Clínica e Doenças Infecciosas,
Rio de Janeiro, RJ, Brasil
- Fundação Oswaldo Cruz-Fiocruz, Instituto Nacional de Infectologia
Evandro Chagas, Laboratório de Bacteriologia e Bioensaios em Micobactérias, Rio de
Janeiro, RJ, Brasil
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Costa-Lima JFD, Pimentel LMLM, Santos FCF, Salazar MP, Duarte RS, Mello FCDQ, Schindler HC. Rapid detection of Mycobacterium tuberculosis in children using blood and urine specimens. Rev Soc Bras Med Trop 2020; 53:e20200051. [PMID: 32997049 PMCID: PMC7523525 DOI: 10.1590/0037-8682-0051-2020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 07/17/2020] [Indexed: 12/02/2022] Open
Abstract
INTRODUCTION Laboratory and clinical features of childhood tuberculosis (TB) are non-specific and establishing an accurate diagnosis remains a challenge. This study evaluated a Single tube nested-PCR (STNPCR) to detect genomic DNA of Mycobacterium tuberculosis complex in blood and urine. METHODS Biological samples were obtained from children (<15 years old) with clinical suspicion of pulmonary and extrapulmonary TB at public hospitals in Recife-Pernambuco, Brazil. Cultures yielded negative results in a majority of childhood TB cases, which are generally paucibacillary. A set of clinical, epidemiological, radiological, and laboratory criteria with evident clinical improvement after anti-TB treatment were frequently used to define childhood TB cases. RESULTS Ninety children with clinical suspicion were enrolled in this study (44 with TB and 46 without TB). The pulmonary TB group had 20 confirmed cases and 46 negative controls, while the extrapulmonary TB group had 24 confirmed cases. The STNPCR showed sensitivities to pulmonary and extrapulmonary TB of 47.4% and 52.2% (blood) and 38.8% and 20% (urine), respectively. Considering the low performance of STNPCR on separate samples, we decided to perform a combined analysis (parallel sensitivity analysis) of the results from blood and urine samples. The parallel sensitivity increased to 65% in blood and 62.5% in urine. The specificity in both samples ranged from 93.5-97.8%. CONCLUSIONS Although STNPCR showed moderate sensitivity, the specificity is high; therefore, the test can be used as an auxiliary tool to diagnose TB in children. It is a rapid test that demonstrated better performance than other diagnostic tests in paucibacillary samples as it does in childhood tuberculosis.
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Affiliation(s)
- Juliana Figueirêdo da Costa-Lima
- Instituto Aggeu Magalhães/Fundação Oswaldo Cruz, Laboratório de Imunoepidemiologia, Departamento de Imunologia, Recife, PE, Brasil
- Universidade Federal do Rio de Janeiro, Programa de Pós-Graduação Stricto Sensu em Clínica Médica, Rio de Janeiro, RJ, Brasil
| | | | - Fabiana Cristina Fulco Santos
- Instituto Aggeu Magalhães/Fundação Oswaldo Cruz, Laboratório de Imunoepidemiologia, Departamento de Imunologia, Recife, PE, Brasil
| | - Marcela Pereira Salazar
- Instituto Aggeu Magalhães/Fundação Oswaldo Cruz, Laboratório de Imunoepidemiologia, Departamento de Imunologia, Recife, PE, Brasil
| | - Rafael Silva Duarte
- Universidade Federal do Rio de Janeiro, Instituto de Microbiologia Paulo Góes, Laboratório de Micobactérias, Rio de Janeiro, RJ, Brasil
| | - Fernanda Carvalho de Queiroz Mello
- Universidade Federal do Rio de Janeiro, Instituto de Doenças do Tórax, Faculdade de Medicina, Rio de Janeiro, RJ, Brasil
- Universidade Federal do Rio de Janeiro, Programa de Pós-Graduação Stricto Sensu em Clínica Médica, Rio de Janeiro, RJ, Brasil
| | - Haiana Charifker Schindler
- Instituto Aggeu Magalhães/Fundação Oswaldo Cruz, Laboratório de Imunoepidemiologia, Departamento de Imunologia, Recife, PE, Brasil
- Universidade Federal de Pernambuco, Hospital das Clínicas, Departamento Materno Infantil, Recife, PE, Brasil
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Sisco MC, Silva MG, Lopez B, Arguelles C, Mendonça-Lima L, de Waard JH, Duarte RS, Suffys PN. Newly sequenced genomes of four Bacillus Calmette Guerin vaccines. Mem Inst Oswaldo Cruz 2020; 115:e190401. [PMID: 32401897 PMCID: PMC7212995 DOI: 10.1590/0074-02760190401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 04/13/2020] [Indexed: 11/24/2022] Open
Abstract
Bacillus Calmette Guerin (BCG) vaccines comprise a family of related strains. Whole genome sequencing has allowed the better characterisation of the differences between many of the BCG vaccines. As sequencing technologies improve, updating of publicly available sequence data becomes common practice. We hereby announce the draft genome of four commonly used BCG vaccines in Brazil, Argentina and Venezuela.
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Affiliation(s)
- Maria Carolina Sisco
- Universidade Federal do Rio de Janeiro, Instituto de Microbiologia Paulo de Góes, Departamento de Microbiologia Médica, Laboratório de Micobactérias, Rio de Janeiro, RJ, Brasil
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Biologia Molecular Aplicada às Micobactérias, Rio de Janeiro, RJ, Brasil
| | - Marlei Gomés Silva
- Universidade Federal do Rio de Janeiro, Instituto de Microbiologia Paulo de Góes, Departamento de Microbiologia Médica, Laboratório de Micobactérias, Rio de Janeiro, RJ, Brasil
| | - Beatriz Lopez
- Instituto Nacional de Enfermedades Infecciosas, Buenos Aires, Argentina
| | - Claudia Arguelles
- Instituto Nacional de Producción de Biológicos Carlos G Malbrán, Buenos Aires, Argentina
| | - Leila Mendonça-Lima
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Genômica Funcional e Bioinformática, Rio de Janeiro, RJ, Brasil
| | - Jacobus H de Waard
- Servicio Autónomo Instituto de Biomedicina Dr Jacinto Convit, Caracas, Venezuela
- One Health Research Group, Universidad de Las Américas, Facultad de Ciencias de la Salud, Quito, Ecuador
| | - Rafael Silva Duarte
- Universidade Federal do Rio de Janeiro, Instituto de Microbiologia Paulo de Góes, Departamento de Microbiologia Médica, Laboratório de Micobactérias, Rio de Janeiro, RJ, Brasil
| | - Philip Noel Suffys
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Biologia Molecular Aplicada às Micobactérias, Rio de Janeiro, RJ, Brasil
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11
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Furlaneto IP, da Conceição ML, Conceição EC, Lopes ML, Rodrigues YC, Macelino BR, Gomes HM, Suffys PN, Guimarães RJDPSE, da Silva MG, Duarte RS, da Costa Francez L, Casseb ADR, Câmara VDM, Pereira WLA, da Costa ARF, Lima KVB. Molecular epidemiology of mycobacteria among herds in Marajó Island, Brazil, reveals strains genetically related and potential zoonotic risk of clinical relevance. Infect Genet Evol 2019; 77:104044. [PMID: 31634644 DOI: 10.1016/j.meegid.2019.104044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 07/08/2019] [Accepted: 09/17/2019] [Indexed: 02/06/2023]
Abstract
Mycobacterium bovis is the main causative agent of bovine tuberculosis (bTB) being among the animal-adapted Mycobacterium tuberculosis complex. Herds can also be infected with non-tuberculous mycobacteria (NTM) causing a negative effect on the economy and on animal and human health through zoonotic infections. Molecular tools are required for mycobacteria identification; thus, it is laborious to determine the epidemiological information of mycobacteria among herds. We aimed to describe the mycobacterial pathogens associated with cases of suspected bTB lesions in cattle/buffaloes slaughtered for consumption and to investigate bTB transmission. We evaluated 74 lesion samples from 48 animals (27 bovine/21 buffaloes) from 16 mapped farms. Positives samples from nested-PCR were cultured in Lowenstein-Jensen (LJ), 2% pyruvate (LJ + P), and 2% glycerol (LJ + G) media, followed by Ziehl-Neelsen (ZN) staining technique and partial gene sequencing (hsp65, rpoB, and 16S-rRNA). Spoligotyping and 24-MIRU-VNTR were performed. The LJ + P increased the chance of obtaining bacilli. The respiratory tract and the oral cavity were the most important infection route. In addition, the calcified part of the lesions suggested chronic bTB. Spoligotypes of M. bovis (SIT986/SB0885) differed from others found in South America, and the MIRU-VNTR 24 loci suggested that bTB was associated to highly related strains. The NTM species found are of clinical importance in humans.
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Affiliation(s)
- Ismari Perini Furlaneto
- Programa de Pós-Graduação Biologia Parasitária na Amazônia, Centro de Ciências Biológicas e da Saúde, Universidade do Estado do Pará, Rua do Una 156, Telégrafo, Belém, Pará, 66 050-540, Brazil.
| | - Marília Lima da Conceição
- Programa de Pós-Graduação Biologia Parasitária na Amazônia, Centro de Ciências Biológicas e da Saúde, Universidade do Estado do Pará, Rua do Una 156, Telégrafo, Belém, Pará, 66 050-540, Brazil; Faculdade de Farmácia, Universidade de Lisboa, Avenida Professor Gama Pinto, Lisboa 1649-003, Portugal
| | - Emilyn Costa Conceição
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Ilha Cidade Universitária - s/n bl I ss, Rio de Janeiro, RJ 21941-970, Brazil; Laboratório de Bacteriologia e Bioensaios, Instituto Nacional de Infectologia Evandro Chagas, Fiocruz, Av. Brasil 4365, Manguinhos, Rio de Janeiro, RJ 21040-900, Brazil
| | - Maria Luíza Lopes
- Seção de Bacteriologia e Micologia, Instituto Evandro Chagas, Rodovia BR-316 km 7 s/n, Levilândia, Ananindeua, Pará 67030-000, Brazil
| | - Yan Corrêa Rodrigues
- Programa de Pós-Graduação Biologia Parasitária na Amazônia, Centro de Ciências Biológicas e da Saúde, Universidade do Estado do Pará, Rua do Una 156, Telégrafo, Belém, Pará, 66 050-540, Brazil
| | - Beatriz Reis Macelino
- Centro de Ciências Biológicas e da Saúde, Universidade do Estado do Pará, Rua do Una 156, Telégrafo, Belém, Pará, 66 050-540, Brazil
| | - Harrison Magdinier Gomes
- Laboratório de Biologia Molecular Aplicada à Microbactéria, Instituto Oswaldo Cruz, Fiocruz, Av. Brasil 4365, Manguinhos, Rio de Janeiro, RJ 21040-900, Brazil
| | - Philip Noel Suffys
- Laboratório de Biologia Molecular Aplicada à Microbactéria, Instituto Oswaldo Cruz, Fiocruz, Av. Brasil 4365, Manguinhos, Rio de Janeiro, RJ 21040-900, Brazil
| | | | - Marlei Gomes da Silva
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Ilha Cidade Universitária - s/n bl I ss, Rio de Janeiro, RJ 21941-970, Brazil
| | - Rafael Silva Duarte
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Ilha Cidade Universitária - s/n bl I ss, Rio de Janeiro, RJ 21941-970, Brazil
| | - Loreno da Costa Francez
- Instituto da Saúde e Produção Animal, Universidade Federal Rural da Amazônia, Estr. Principal da Ufra, Curió Utinga, Belém, PA 2150-2476, Brazil
| | - Alexandre do Rosário Casseb
- Instituto da Saúde e Produção Animal, Universidade Federal Rural da Amazônia, Estr. Principal da Ufra, Curió Utinga, Belém, PA 2150-2476, Brazil
| | - Volney de Magalhães Câmara
- Programa de Pós-Graduação em Saúde Coletiva, Instituto de Estudos em Saúde Coletiva, Universidade Federal do Rio de Janeiro, Avenida Horacio Macedo, S/N, Ilha do Fundão, Rio de Janeiro- RJ 21941-598, Brazil
| | - Washington Luiz Assunção Pereira
- Programa Pós-graduação em Saúde e Produção Animal na Amazônia, Universidade Federal Rural da Amazônia, Avenida Presidente Tancredo Neves, 2501, Belém, Pará 66077-830, Brazil
| | - Ana Roberta Fusco da Costa
- Seção de Bacteriologia e Micologia, Instituto Evandro Chagas, Rodovia BR-316 km 7 s/n, Levilândia, Ananindeua, Pará 67030-000, Brazil
| | - Karla Valéria Batista Lima
- Programa de Pós-Graduação Biologia Parasitária na Amazônia, Centro de Ciências Biológicas e da Saúde, Universidade do Estado do Pará, Rua do Una 156, Telégrafo, Belém, Pará, 66 050-540, Brazil; Seção de Bacteriologia e Micologia, Instituto Evandro Chagas, Rodovia BR-316 km 7 s/n, Levilândia, Ananindeua, Pará 67030-000, Brazil.
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Chevtchouk Jurno A, Oliveira Corrêa Netto L, Silva Duarte R, Rocha Pinheiro Machado R. The search for plant activity against tuberculosis using breakpoints: A review. Tuberculosis (Edinb) 2019; 117:65-78. [PMID: 31378271 DOI: 10.1016/j.tube.2019.06.004] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 05/09/2019] [Accepted: 06/21/2019] [Indexed: 11/17/2022]
Abstract
The present study proposes a discussion about the use of breakpoints when plant derivatives are used for investigating potential agents against Mycobacterium tuberculosis strains. A systematic review on these aspects was performed and supported that an arbitrary breakpoint may be considered inadequate in this kind of study. In addition, we propose that the adoption of this limiter should be done from the toxicity value found using the same plant derivative.
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Affiliation(s)
- Ariane Chevtchouk Jurno
- Faculdade de Ciências Médicas e da Saúde de Juiz de Fora, SUPREMA, Alameda Salvaterra, 200, Salvaterra, Juiz de Fora, MG, 36033-003, Brazil
| | - Luiza Oliveira Corrêa Netto
- Faculdade de Ciências Médicas e da Saúde de Juiz de Fora, SUPREMA, Alameda Salvaterra, 200, Salvaterra, Juiz de Fora, MG, 36033-003, Brazil
| | - Rafael Silva Duarte
- Laboratório de Micobacterias, Instituto de Microbiologia Paulo de Goes, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373 - bloco I - Cidade Universitária, Rio de Janeiro, RJ, 21941-970, Brazil
| | - Rachel Rocha Pinheiro Machado
- Faculdade de Ciências Médicas e da Saúde de Juiz de Fora, SUPREMA, Alameda Salvaterra, 200, Salvaterra, Juiz de Fora, MG, 36033-003, Brazil; Hospital Maternidade Therezinha de Jesus. R. Dr. Dirceu de Andrade, 33 - São Mateus, Juiz de Fora, MG, 36025-140, Brazil.
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13
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Conceição EC, Refregier G, Gomes HM, Olessa-Daragon X, Coll F, Ratovonirina NH, Rasolofo-Razanamparany V, Lopes ML, van Soolingen D, Rutaihwa L, Gagneux S, Bollela VR, Suffys PN, Duarte RS, Lima KVB, Sola C. Mycobacterium tuberculosis lineage 1 genetic diversity in Pará, Brazil, suggests common ancestry with east-African isolates potentially linked to historical slave trade. Infect Genet Evol 2019; 73:337-341. [PMID: 31170529 DOI: 10.1016/j.meegid.2019.06.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 05/30/2019] [Accepted: 06/01/2019] [Indexed: 11/17/2022]
Abstract
Lineage 1 (L1) is one of seven Mycobacterium tuberculosis complex (MTBC) lineages. The objective of this study was to improve the complex taxonomy of L1 using phylogenetic SNPs, and to look for the origin of the main L1 sublineage prevalent in Para, Brazil. We developed a high-throughput SNPs-typing assay based on 12-L1-specific SNPs. This assay allowed us to experimentally retrieve SNP patterns on nine of these twelve SNPs in 277 isolates previously tentatively assigned to L1 spoligotyping-based sublineages. Three collections were used: Pará-Brazil (71); RIVM, the Netherlands (102), Madagascar (104). One-hundred more results were generated in Silico using the PolyTB database. Based on the final SNPs combination, the samples were classified into 11 clusters (C1-C11). Most isolates within a SNP-based cluster shared a mutual spoligotyping-defined lineage. However, L1/EAI1-SOM (SIT48) and L1/EAI6-BGD1 (SIT591) showed a poor correlation with SNP data and are not monophyletic. L1/EAI8-MDG and L1/EAI3-IND belonged to C5; this result suggests that they share a common ancestor. L1.1.3/SIT129, a spoligotype pattern found in SNPs-cluster C6, was found to be shared between Pará/Brazil and Malawi. SIT129 was independently found to be highly prevalent in Mozambique, which suggests a migration history from East-Africa to Brazil during the 16th-18th slave trade period to Northern Brazil.
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Affiliation(s)
- Emilyn Costa Conceição
- Institut de Biologie Intégrative de la Cellule, I2BC, UMR9198, CEA, CNRS, Univ. Paris-Sud, Univ. Paris-Saclay, 91198 Gif-sur-Yvette cedex, France; Pós-Graduação Instituto de Microbiologia Professor Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro-RJ, Brazil.
| | - Guislaine Refregier
- Institut de Biologie Intégrative de la Cellule, I2BC, UMR9198, CEA, CNRS, Univ. Paris-Sud, Univ. Paris-Saclay, 91198 Gif-sur-Yvette cedex, France
| | - Harrison Magdinier Gomes
- Institut de Biologie Intégrative de la Cellule, I2BC, UMR9198, CEA, CNRS, Univ. Paris-Sud, Univ. Paris-Saclay, 91198 Gif-sur-Yvette cedex, France; Laboratório de Biologia Molecular Aplicada a Micobactéria, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro-RJ, Brazil
| | - Xavier Olessa-Daragon
- Institut de Biologie Intégrative de la Cellule, I2BC, UMR9198, CEA, CNRS, Univ. Paris-Sud, Univ. Paris-Saclay, 91198 Gif-sur-Yvette cedex, France
| | - Francesc Coll
- Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, WC1E 7HT London, UK
| | - Noël Harijaona Ratovonirina
- Institut de Biologie Intégrative de la Cellule, I2BC, UMR9198, CEA, CNRS, Univ. Paris-Sud, Univ. Paris-Saclay, 91198 Gif-sur-Yvette cedex, France; Unité des Mycobactéries, Institut Pasteur de Madagascar, Antananarivo, Madagascar
| | | | - Maria Luiza Lopes
- Seção de Bacteriologia e Micologia, Instituto Evandro Chagas, Ananindeua-PA, Brazil
| | - Dick van Soolingen
- National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands; Department of Medical Microbiology, Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands
| | - Liliana Rutaihwa
- Swiss Tropical & Public Health Institute, Socinstrasse 57, 4051 Basel, Switzerland; University of Basel, Basel, Switzerland
| | - Sebastien Gagneux
- Swiss Tropical & Public Health Institute, Socinstrasse 57, 4051 Basel, Switzerland; University of Basel, Basel, Switzerland
| | - Valdes Roberto Bollela
- Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto-SP, Brazil
| | - Philip Noel Suffys
- Laboratório de Biologia Molecular Aplicada a Micobactéria, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro-RJ, Brazil
| | - Rafael Silva Duarte
- Pós-Graduação Instituto de Microbiologia Professor Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro-RJ, Brazil
| | | | - Christophe Sola
- Institut de Biologie Intégrative de la Cellule, I2BC, UMR9198, CEA, CNRS, Univ. Paris-Sud, Univ. Paris-Saclay, 91198 Gif-sur-Yvette cedex, France; Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto-SP, Brazil.
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Carneiro SP, Carvalho KV, de Oliveira Aguiar Soares RD, Carneiro CM, de Andrade MHG, Duarte RS, dos Santos ODH. Functionalized rifampicin-loaded nanostructured lipid carriers enhance macrophages uptake and antimycobacterial activity. Colloids Surf B Biointerfaces 2019; 175:306-313. [DOI: 10.1016/j.colsurfb.2018.12.003] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 11/29/2018] [Accepted: 12/03/2018] [Indexed: 11/26/2022]
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15
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Conceição EC, Guimarães AEDS, Lopes ML, Furlaneto IP, Rodrigues YC, da Conceição ML, Barros WA, Cardoso NC, Sharma A, Lima LNGC, Gomes HM, Duarte RS, Frota C, Rutaihwa LK, Gagneux S, Suffys PN, Lima KVB. Analysis of potential household transmission events of tuberculosis in the city of Belem, Brazil. Tuberculosis (Edinb) 2018; 113:125-129. [DOI: 10.1016/j.tube.2018.09.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 08/16/2018] [Accepted: 09/29/2018] [Indexed: 12/17/2022]
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Conceição EC, Rastogi N, Couvin D, Lopes ML, Furlaneto IP, Gomes HM, Vasconcellos SEG, Suffys PN, Schneider MPC, de Sousa MS, Sola C, de Paula Souza e Guimarães RJ, Duarte RS, Batista Lima KV. Genetic diversity of Mycobacterium tuberculosis from Pará, Brazil, reveals a higher frequency of ancestral strains than previously reported in South America. Infection, Genetics and Evolution 2017; 56:62-72. [DOI: 10.1016/j.meegid.2017.10.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 10/20/2017] [Accepted: 10/23/2017] [Indexed: 01/24/2023]
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Gomes KM, Duarte RS, de Freire Bastos MDC. Lantibiotics produced by Actinobacteria and their potential applications (a review). Microbiology (Reading) 2017; 163:109-121. [PMID: 28270262 DOI: 10.1099/mic.0.000397] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The phylum Actinobacteria, which comprises a great variety of Gram-positive bacteria with a high G+C content in their genomes, is known for its large production of bioactive compounds, including those with antimicrobial activity. Among the antimicrobials, bacteriocins, ribosomally synthesized peptides, represent an important arsenal of potential new drugs to face the increasing prevalence of resistance to antibiotics among microbial pathogens. The actinobacterial bacteriocins form a heterogeneous group of substances that is difficult to adapt to most proposed classification schemes. However, recent updates have accommodated efficiently the diversity of bacteriocins produced by this phylum. Among the bacteriocins, the lantibiotics represent a source of new antimicrobials to control infections caused mainly by Gram-positive bacteria and with a low propensity for resistance development. Moreover, some of these compounds have additional biological properties, exhibiting activity against viruses and tumour cells and having also potential to be used in blood pressure or inflammation control and in pain relief. Thus, lantibiotics already described in Actinobacteria exhibit potential practical applications in medical settings, food industry and agriculture, with examples at different stages of pre-clinical and clinical trials.
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Affiliation(s)
- Karen Machado Gomes
- Departamento de Microbiologia Médica, Instituto de Microbiologia Paulo de Góes, UFRJ, Rio de Janeiro, Brazil
| | - Rafael Silva Duarte
- Departamento de Microbiologia Médica, Instituto de Microbiologia Paulo de Góes, UFRJ, Rio de Janeiro, Brazil
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Ribeiro GM, Matsumoto CK, Real F, Teixeira D, Duarte RS, Mortara RA, Leão SC, de Souza Carvalho-Wodarz C. Increased survival and proliferation of the epidemic strain Mycobacterium abscessus subsp. massiliense CRM0019 in alveolar epithelial cells. BMC Microbiol 2017; 17:195. [PMID: 28903728 PMCID: PMC5598063 DOI: 10.1186/s12866-017-1102-7] [Citation(s) in RCA: 2] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 09/05/2017] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Outbreaks of infections caused by rapidly growing mycobacteria have been reported worldwide generally associated with medical procedures. Mycobacterium abscessus subsp. massiliense CRM0019 was obtained during an epidemic of postsurgical infections and was characterized by increased persistence in vivo. To better understand the successful survival strategies of this microorganism, we evaluated its infectivity and proliferation in macrophages (RAW and BMDM) and alveolar epithelial cells (A549). For that, we assessed the following parameters, for both M. abscessus CRM0019 as well as the reference strain M. abscessus ATCC 19977: internalization, intracellular survival for up 3 days, competence to subvert lysosome fusion and the intracellular survival after cell reinfection. RESULTS CRM0019 and ATCC 19977 strains showed the same internalization rate (approximately 30% after 6 h infection), in both A549 and RAW cells. However, colony forming units data showed that CRM0019 survived better in A549 cells than the ATCC 19977 strain. Phagosomal characteristics of CRM0019 showed the bacteria inside tight phagosomes in A549 cells, contrasting to the loosely phagosomal membrane in macrophages. This observation holds for the ATCC 19977 strain in both cell types. The competence to subvert lysosome fusion was assessed by acidification and acquisition of lysosomal protein. For M. abscessus strains the phagosomes were acidified in all cell lines; nevertheless, the acquisition of lysosomal protein was reduced by CRM0019 compared to the ATCC 19977 strain, in A549 cells. Conversely, in macrophages, both M. abscessus strains were located in mature phagosomes, however without bacterial death. Once recovered from macrophages M. abscessus could establish a new intracellular infection. Nevertheless, only CRM0019 showed a higher growth rate in A549, increasing nearly 10-fold after 48 and 72 h. CONCLUSION M. abscessus CRM0019 creates a protective and replicative niche in alveolar epithelial cells mainly by avoiding phagosome maturation. Once recovered from infected macrophages, CRM0019 remains infective and displays greater intracellular growth in A549 cells compared to the ATCC 19977 strain. This evasion strategy in alveolar epithelial cells may contribute to the long survival of the CRM0019 strain in the host and thus to the inefficacy of in vivo treatment.
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Affiliation(s)
- Giovanni Monteiro Ribeiro
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Cristianne Kayoko Matsumoto
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Fernando Real
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil.,Laboratoire Entrée muqueuse du VIH et Immunité muqueuse, Department Infection, Immunité et Inflammation, Institut Cochin, Paris, France
| | - Daniela Teixeira
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Rafael Silva Duarte
- Laboratório de Micobactérias, Instituto de Microbiologia Professor Paulo de Góes, Cidade Universitária, Rio de Janeiro, Brazil
| | - Renato Arruda Mortara
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Sylvia Cardoso Leão
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Cristiane de Souza Carvalho-Wodarz
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil. .,Department of Drug Delivery, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Saarbrücken, Germany.
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Santos DRDS, Lourenço MCS, Coelho FS, Mello FCQ, Duarte RS. Resistance profile of strains of Mycobacterium fortuitum isolated from clinical specimens. J Bras Pneumol 2017; 42:299-301. [PMID: 27832239 PMCID: PMC5063448 DOI: 10.1590/s1806-37562016000000073] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Affiliation(s)
- Debora Ribeiro de Souza Santos
- Programa de Pós-Graduação em Clínica Médica, Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro (RJ) Brasil.,Departamento de Ciências Biológicas, Escola Nacional de Saúde Pública Sérgio Arouca, Fundação Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro (RJ) Brasil
| | - Maria Cristina Silva Lourenço
- Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro (RJ) Brasil
| | - Fábrice Santana Coelho
- Hospital Universitário Pedro Ernesto, Universidade do Estado do Rio de Janeiro, Rio de Janeiro (RJ) Brasil
| | | | - Rafael Silva Duarte
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro (RJ) Brasil
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Neves MS, da Silva MG, Côrtes PB, Duarte RS, Ventura GM, de Souza HS. Response. Gastrointest Endosc 2016; 84:1078. [PMID: 27855795 DOI: 10.1016/j.gie.2016.07.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 07/21/2016] [Indexed: 12/11/2022]
Affiliation(s)
- Marcelo S Neves
- Division of Gastroenterology, Internal Medicine Department, Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marlei Gomes da Silva
- Mycobacteria Laboratory, Medical Microbiology Department, Institute of Microbiology, Health Sciences Center, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Patrícia Barbur Côrtes
- Mycobacteria Laboratory, Medical Microbiology Department, Institute of Microbiology, Health Sciences Center, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Rafael Silva Duarte
- Mycobacteria Laboratory, Medical Microbiology Department, Institute of Microbiology, Health Sciences Center, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Grasiella M Ventura
- Unit of Confocal Microscopy, Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Heitor S de Souza
- Division of Gastroenterology, Internal Medicine Department, Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil; D'Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
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Conde MB, Mello FCQ, Duarte RS, Cavalcante SC, Rolla V, Dalcolmo M, Loredo C, Durovni B, Armstrong DT, Efron A, Barnes GL, Marzinke MA, Savic RM, Dooley KE, Cohn S, Moulton LH, Chaisson RE, Dorman SE. A Phase 2 Randomized Trial of a Rifapentine plus Moxifloxacin-Based Regimen for Treatment of Pulmonary Tuberculosis. PLoS One 2016; 11:e0154778. [PMID: 27159505 PMCID: PMC4861335 DOI: 10.1371/journal.pone.0154778] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 04/19/2016] [Indexed: 11/19/2022] Open
Abstract
Background The combination of rifapentine and moxifloxacin administered daily with other anti-tuberculosis drugs is highly active in mouse models of tuberculosis chemotherapy. The objective of this phase 2 clinical trial was to determine the bactericidal activity, safety, and tolerability of a regimen comprised of rifapentine, moxifloxacin, isoniazid, and pyrazinamide administered daily during the first 8 weeks of pulmonary tuberculosis treatment. Methods Adults with sputum smear-positive pulmonary tuberculosis were randomized to receive either rifapentine (approximately 7.5 mg/kg) plus moxifloxacin (investigational arm), or rifampin (approximately 10 mg/kg) plus ethambutol (control) daily for 8 weeks, along with isoniazid and pyrazinamide. The primary endpoint was sputum culture status at completion of 8 weeks of treatment. Results 121 participants (56% of accrual target) were enrolled. At completion of 8 weeks of treatment, negative cultures using Löwenstein-Jensen (LJ) medium occurred in 47/60 (78%) participants in the investigational arm vs. 43/51 (84%, p = 0.47) in the control arm; negative cultures using liquid medium occurred in 37/47 (79%) in the investigational arm vs. 27/41 (66%, p = 0.23) in the control arm. Time to stable culture conversion was shorter for the investigational arm vs. the control arm using liquid culture medium (p = 0.03), but there was no difference using LJ medium. Median rifapentine area under the concentration-time curve (AUC0-24) was 313 mcg*h/mL, similar to recent studies of rifapentine dosed at 450–600 mg daily. Median moxifloxacin AUC0-24 was 28.0 mcg*h/mL, much lower than in trials where rifapentine was given only intermittently with moxifloxacin. The proportion of participants discontinuing assigned treatment for reasons other than microbiological ineligibility was higher in the investigational arm vs. the control arm (11/62 [18%] vs. 3/59 [5%], p = 0.04) although the proportions of grade 3 or higher adverse events were similar (5/62 [8%] in the investigational arm vs. 6/59 [10%, p = 0.76] in the control arm). Conclusion For intensive phase daily tuberculosis treatment in combination with isoniazid and pyrazinamide, a regimen containing moxifloxacin plus low dose rifapentine was at least as bactericidal as the control regimen containing ethambutol plus standard dose rifampin. Trial Registration www.ClinicalTrials.govNCT00728507
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Affiliation(s)
- Marcus B. Conde
- Instituto de Doenças do Tórax, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Fernanda C. Q. Mello
- Instituto de Doenças do Tórax, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Rafael Silva Duarte
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Solange C. Cavalcante
- Municipal Health Secretariat, Rio de Janeiro, Brazil
- Instituto Nacional de Infectologia Evandro Chagas, Fiocruz, Rio de Janeiro, Brazil
| | - Valeria Rolla
- Instituto Nacional de Infectologia Evandro Chagas, Fiocruz, Rio de Janeiro, Brazil
| | - Margareth Dalcolmo
- Centro de Referência Hélio Fraga, Ministério da Saúde, Fiocruz Rio de Janeiro, Brazil
| | - Carla Loredo
- Instituto de Doenças do Tórax, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Derek T. Armstrong
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Anne Efron
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Grace L. Barnes
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Mark A. Marzinke
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Radojka M. Savic
- University of California San Francisco, San Francisco, California, United States of America
| | - Kelly E. Dooley
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Silvia Cohn
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Lawrence H. Moulton
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America
| | - Richard E. Chaisson
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Susan E. Dorman
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- * E-mail:
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Neves MS, da Silva MG, Ventura GM, Côrtes PB, Duarte RS, de Souza HS. Effectiveness of current disinfection procedures against biofilm on contaminated GI endoscopes. Gastrointest Endosc 2016; 83:944-53. [PMID: 26408426 DOI: 10.1016/j.gie.2015.09.016] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 09/14/2015] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS Attention to patient safety has increased recently due to outbreaks of nosocomial infections associated with GI endoscopy. The aim of this study was to evaluate current cleaning and disinfection procedures of endoscope channels with high bioburden and biofilm analysis, including the use of resistant mycobacteria associated with postsurgical infections in Brazil. METHODS Twenty-seven original endoscope channels were contaminated with organic soil containing 10(8) colony-forming units/mL of Pseudomonas aeruginosa, Staphylococcus aureus, or Mycobacterium abscessus subsp bolletii. Biofilms with the same microorganisms were developed on the inner surface of channels with the initial inoculum of 10(5) colony-forming units/mL. Channels were reprocessed following current protocol, and samples from cleaning and disinfection steps were analyzed by bioluminescence for adenosine triphosphate, cultures for viable microorganisms, and confocal microscopy. RESULTS After contamination, adenosine triphosphate levels increased dramatically, and high bacterial growth was observed in all cultures. After cleaning, adenosine triphosphate levels decreased to values comparable to precontamination levels, and bacterial growth was demonstrated in 5 of 27 catheters, 2 with P aeruginosa and 3 with M abscessus. With regard to induced biofilm, a remarkable reduction occurred after cleaning, but significant microbial growth inhibition occurred only after disinfection. Nevertheless, viable microorganisms within the biofilm were still detected by confocal microscopy, more so with glutaraldehyde than with peracetic acid or O-phataladehyde. CONCLUSION After the complete disinfection procedure, viable microorganisms could still be detected within the biofilm on endoscope channels. Prevention of biofilm development within endoscope channels should be a priority in disinfection procedures, particularly for ERCP and EUS.
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Affiliation(s)
- Marcelo S Neves
- Division of Gastroenterology, Internal Medicine Department, Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marlei Gomes da Silva
- Mycobacteria Laboratory, Medical Microbiology Department, Institute of Microbiology, Health Sciences Center, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Grasiella M Ventura
- Unity of Confocal Microscopy, Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Brazil
| | - Patrícia Barbur Côrtes
- Mycobacteria Laboratory, Medical Microbiology Department, Institute of Microbiology, Health Sciences Center, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Rafael Silva Duarte
- Mycobacteria Laboratory, Medical Microbiology Department, Institute of Microbiology, Health Sciences Center, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Heitor S de Souza
- Division of Gastroenterology, Internal Medicine Department, Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil; D'Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
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Caierão J, Paiva JACD, Sampaio JLM, Silva MGD, Santos DRDS, Coelho FS, Fonseca LDS, Duarte RS, Armstrong DT, Regua-Mangia AH. Multilocus enzyme electrophoresis analysis of rapidly-growing mycobacteria: an alternative tool for identification and typing. Int J Infect Dis 2015; 42:11-16. [PMID: 26603643 DOI: 10.1016/j.ijid.2015.11.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 10/15/2015] [Accepted: 11/15/2015] [Indexed: 10/22/2022] Open
Abstract
OBJECTIVES Rapidly growing mycobacteria (RGM) have emerged as important pathogens in clinical settings, associated with esthetic procedures and postsurgical infections, pulmonary infections among cystic fibrosis patients, and other structural pulmonary diseases. Microorganisms belonging to Mycobacterium abscessus-Mycobacterium chelonae and to Mycobacterium fortuitum groups have frequently been associated with outbreaks and various epidemics. In the present study, RGM strains were characterized in order to investigate molecular markers based on proteomic analysis. METHODS Multilocus enzyme electrophoresis (MLEE) was used for species identification and clonal analysis of RGM recovered from postsurgical wound infections during an epidemic. The study included 30M. abscessus subsp. bolletii clinical isolates, most belonging to the BRA100 clone (epidemic in Rio de Janeiro city), as well as 16 RGM ATCC reference strains. RESULTS Molecular typing allowed the detection of diversity in the studied population and revealed species-specific isoenzymatic patterns. Additionally, the clonal relationship among M. abscessus subsp. bolletii outbreak isolates, as examined using MLEE, was markedly consistent. CONCLUSIONS Isoenzymatic characterization was found to be a useful molecular tool to identify RGM species and to determine the relatedness among closely related M. abscessus subsp. bolletii isolates. This may be considered a powerful approach for epidemiological studies on RGM.
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Affiliation(s)
- Juliana Caierão
- Departamento de Ciências Básicas da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre, Rio Grande do Sul, Brazil
| | - José Augusto Cardoso Dias Paiva
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, CCS, Bloco I, Cidade Universitária - Rio de Janeiro, RJ 21941-902, Brazil
| | | | - Marlei Gomes da Silva
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, CCS, Bloco I, Cidade Universitária - Rio de Janeiro, RJ 21941-902, Brazil
| | | | - Fabrice Santana Coelho
- Hospital Pedro Ernesto, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Leila de Souza Fonseca
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, CCS, Bloco I, Cidade Universitária - Rio de Janeiro, RJ 21941-902, Brazil
| | - Rafael Silva Duarte
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, CCS, Bloco I, Cidade Universitária - Rio de Janeiro, RJ 21941-902, Brazil.
| | | | - Adriana Hamond Regua-Mangia
- Departamento de Ciências Biológicas, Escola Nacional de Saúde Pública Sergio Arouca/FIOCRUZ, Rio de Janeiro, Brazil
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Duarte RS, Martins IH, Mendes CP, Silva Costa MA, Mendes DDS, Romano VF, Gomes SC, Reis A, Neves RD. Proposta interdisciplinar de apoio à cessação do tabagismo em uma unidade de saúde da Estratégia Saúde da Família: relato de experiência. Rev Bras Med Fam Comunidade 2014. [DOI: 10.5712/rbmfc9(33)708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Este artigo descreve a proposta interdisciplinar utilizada atualmente no Centro Municipal de Saúde Manguinhos (CMSM), Rio de Janeiro, para condução longitudinal do tratamento antitabagismo em pacientes residentes em comunidades de baixa renda da região, sob a ótica de um estudante de medicina em seu período de internato rotatório. A abordagem antitabágica consiste em terapia longitudinal dividida em duas etapas: (i) assistência a grupo de pacientes com abordagem interdisciplinar ao longo de quatro sessões distribuídas semanalmente que inclui tratamento psicoterápico e recursos farmacológicos; seguida de (ii) duas sessões quinzenais de terapia de manutenção, caracterizadas por atenção individualizada e desmame farmacológico, complementadas por um seguimento mensal de até um ano. Os protocolos atuais, as atividades dos profissionais e a condução da proposta são descritos. Este relato sugere que o aprimoramento da formação em medicina pode ocorrer por meio da participação dos estudantes em ações de educação em saúde, tais como o grupo antitabagismo.
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Lima AS, Duarte RS, Montenegro LML, Schindler HC. Rapid detection and differentiation of mycobacterial species using a multiplex PCR system. Rev Soc Bras Med Trop 2014; 46:447-52. [PMID: 23982098 DOI: 10.1590/0037-8682-0097-2013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Accepted: 07/22/2013] [Indexed: 11/21/2022] Open
Abstract
INTRODUCTION The early diagnosis of mycobacterial infections is a critical step for initiating treatment and curing the patient. Molecular analytical methods have led to considerable improvements in the speed and accuracy of mycobacteria detection. METHODS The purpose of this study was to evaluate a multiplex polymerase chain reaction system using mycobacterial strains as an auxiliary tool in the differential diagnosis of tuberculosis and diseases caused by nontuberculous mycobacteria (NTM) RESULTS: Forty mycobacterial strains isolated from pulmonary and extrapulmonary origin specimens from 37 patients diagnosed with tuberculosis were processed. Using phenotypic and biochemical characteristics of the 40 mycobacteria isolated in LJ medium, 57.5% (n=23) were characterized as the Mycobacterium tuberculosis complex (MTBC) and 20% (n=8) as nontuberculous mycobacteria (NTM), with 22.5% (n=9) of the results being inconclusive. When the results of the phenotypic and biochemical tests in 30 strains of mycobacteria were compared with the results of the multiplex PCR, there was 100% concordance in the identification of the MTBC and NTM species, respectively. A total of 32.5% (n=13) of the samples in multiplex PCR exhibited a molecular pattern consistent with NTM, thus disagreeing with the final diagnosis from the attending physician. CONCLUSIONS Multiplex PCR can be used as a differential method for determining TB infections caused by NTM a valuable tool in reducing the time necessary to make clinical diagnoses and begin treatment. It is also useful for identifying species that were previously not identifiable using conventional biochemical and phenotypic techniques.
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Affiliation(s)
- Andrea Santos Lima
- Departamento de Imunologia, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, Recife,
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Santos Lima A, Carneiro Neves MM, Machado Gomes K, Miranda Guarines K, Luna CF, Silva Duarte R, Lapa Montenegro LM, Charifker Schindler H. First case report of infection by Mycobacterium wolinskyi after mammoplasty in Brazil. Infect Dis Rep 2013; 5:e12. [PMID: 24470962 PMCID: PMC3892610 DOI: 10.4081/idr.2013.e12] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Revised: 09/09/2013] [Accepted: 09/28/2013] [Indexed: 11/30/2022] Open
Abstract
Mycobacterium wolinskyi is a rapidly growing mycobacterium, first described in 1999 as a member of the group Mycobacterium smegmatis (Mycobacterium smegmatis, Mycobacterium wolinskyi and Mycobacterium goodii). Only 19 case reports all over the world have been described on literature, none of them in Brazil. On this report, it is described one case of infection after a mammoplasty procedure performed in a private health service in the county of Recife, Pernambuco, Brazil, in 2009. The mycobacteria specie was identified using biochemical tests and sequencing the specific gene rpoB. To treat the infection by Mycobacterium wolinskyi it was necessary to combine antibiotics for a long period of time associated with surgical procedures of the breast abscesses.
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Affiliation(s)
- Andrea Santos Lima
- Department of Immunology, Aggeu Magalhães Center for Research/Fiocruz , Recif
| | | | - Karen Machado Gomes
- Institute of Microbiology, Federal University of Rio de Janeiro , Recif, Brazil
| | | | - Carlos Feitosa Luna
- Department of Public Health, Aggeu Magalhães Center for Research/Fiocruz , Recif, Brazil
| | - Rafael Silva Duarte
- Institute of Microbiology, Federal University of Rio de Janeiro , Recif, Brazil
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Davidson RM, Hasan NA, de Moura VCN, Duarte RS, Jackson M, Strong M. Phylogenomics of Brazilian epidemic isolates of Mycobacterium abscessus subsp. bolletii reveals relationships of global outbreak strains. Infect Genet Evol 2013; 20:292-7. [PMID: 24055961 DOI: 10.1016/j.meegid.2013.09.012] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Revised: 09/09/2013] [Accepted: 09/10/2013] [Indexed: 10/26/2022]
Abstract
Rapidly growing, non-tuberculous mycobacteria (NTM) in the Mycobacterium abscessus (MAB) species are emerging pathogens that cause various diseases including skin and respiratory infections. The species has undergone recent taxonomic nomenclature refinement, and is currently recognized as two subspecies, M. abscessus subsp. abscessus (MAB-A) and M. abscessus subsp. bolletii (MAB-B). The recently reported outbreaks of MAB-B in surgical patients in Brazil from 2004 to 2009 and in cystic fibrosis patients in the United Kingdom (UK) in 2006 to 2012 underscore the need to investigate the genetic diversity of clinical MAB strains. To this end, we sequenced the genomes of two Brazilian MAB-B epidemic isolates (CRM-0019 and CRM-0020) derived from an outbreak of skin infections in Rio de Janeiro, two unrelated MAB strains from patients with pulmonary infections in the United States (US) (NJH8 and NJH11) and one type MAB-B strain (CCUG 48898) and compared them to 25 publically available genomes of globally diverse MAB strains. Genome-wide analyses of 27,598 core genome single nucleotide polymorphisms (SNPs) revealed that the two Brazilian derived CRM strains are nearly indistinguishable from one another and are more closely related to UK outbreak isolates infecting CF patients than to strains from the US, Malaysia or France. Comparative genomic analyses of six closely related outbreak strains revealed geographic-specific large-scale insertion/deletion variation that corresponds to bacteriophage insertions and recombination hotspots. Our study integrates new genome sequence data with existing genomic information to explore the global diversity of infectious M. abscessus isolates and to compare clinically relevant outbreak strains from different continents.
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Affiliation(s)
- Rebecca M Davidson
- Integrated Center for Genes, Environment, and Health, National Jewish Health, Denver, CO, USA
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Matsumoto CK, Chimara E, Ramos JP, Campos CED, Caldas PCDS, Lima KVB, Lopes ML, Duarte RS, Leão SC. Rapid tests for the detection of the Mycobacterium abscessus subsp. bolletii strain responsible for an epidemic of surgical-site infections in Brazil. Mem Inst Oswaldo Cruz 2013; 107:969-77. [PMID: 23295745 DOI: 10.1590/s0074-02762012000800002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2011] [Accepted: 05/10/2012] [Indexed: 11/22/2022] Open
Abstract
A single strain of Mycobacterium abscessus subsp. bolletii, characterised by a particular rpoB sequevar and two highly related pulsed field gel electrophoresis patterns has been responsible for a nationwide outbreak of surgical infections in Brazil since 2004. In this study, we developed molecular tests based on polymerase chain reaction restriction-enzyme analysis (PRA) and sequencing for the rapid identification of this strain. Sequences of 15 DNA regions conserved in mycobacteria were retrieved from GenBank or sequenced and analysed in silico. Single nucleotide polymorphisms specific to the epidemic strain and located in enzyme recognition sites were detected in rpoB, the 3' region of the 16S rDNA and gyrB. The three tests that were developed, i.e., PRA-rpoB, PRA-16S and gyrB sequence analysis, showed 100%, 100% and 92.31% sensitivity and 93.06%, 90.28% and 100% specificity, respectively, for the discrimination of the surgical strain from other M. abscessus subsp. bolletii isolates, including 116 isolates from 95 patients, one environmental isolate and two type strains. The results of the three tests were stable, as shown by results obtained for different isolates from the same patient. In conclusion, due to the clinical and epidemiological importance of this strain, these tests could be implemented in reference laboratories for the rapid preliminary diagnosis and epidemiological surveillance of this epidemic strain.
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Affiliation(s)
- Cristianne Kayoko Matsumoto
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brasil.
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Barros RR, Kegele FCO, de Paula GR, de Brito MA, Duarte RS. Molecular characterization of the first fluoroquinolone resistant strains of Streptococcus agalactiae isolated in Brazil. Braz J Infect Dis 2012; 16:476-8. [DOI: 10.1016/j.bjid.2012.05.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2012] [Accepted: 05/06/2012] [Indexed: 10/27/2022] Open
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Barbosa CDB, Lazzarini LCO, Elias AR, Leung JAM, Ribeiro SB, da Silva MG, Duarte RS, Suffys P, Gomes HM, Kritski AL, Lapa E Silva JR, Ho JL, Boéchat N. Tuberculosis caused by RDRio Mycobacterium tuberculosis is not associated with differential clinical features. Int J Tuberc Lung Dis 2012; 16:1377-82. [PMID: 22863208 DOI: 10.5588/ijtld.11.0709] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND We recently described the Mycobacterium tuberculosis RD(Rio) genotype, a clonally derived sublineage within the Latin American-Mediterranean (LAM) family. Genetic diversity of M. tuberculosis likely affects the clinical aspects of tuberculosis (TB). Prospective studies that address this issue are scarce and remain controversial. OBJECTIVE To determine the association of differential clinical features of pulmonary TB with the RD(Rio) M. tuberculosis etiology. METHODS Culture-proven pulmonary TB patients (n = 272) were clinically evaluated, including history, physical examination, chest X-ray and anti-human immunodeficiency virus serology. Isolates were classified as RD(Rio) or non-RD(Rio) M. tuberculosis by multiplex polymerase chain reaction and further spoligotyped. Clinical and M. tuberculosis genotype data were analyzed. RESULTS RD(Rio) M. tuberculosis caused disease in 26.5% (72/270) of all TB cases. The LAM genotype, of which RD(Rio) strains are members, was responsible for 46.0% of the TB cases. Demographic data, major signs and symptoms, radiographic presentation, microbiological features and clinical outcomes were not significantly different among patients with TB caused by RD(Rio) and non-RD(Rio) strains. CONCLUSIONS Disease caused by M. tuberculosis RD(Rio) strains was not clinically distinctive or more severe than disease caused by non-RD(Rio) strains in this series of TB patients. Larger prospective studies specifically designed to disclose differential clinical characteristics of TB caused by specific M. tuberculosis lineages are needed.
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Affiliation(s)
- C de B Barbosa
- Multidisciplinary Research Laboratory, Clementino Fraga Filho University Hospital, Institute of Thoracic Diseases, Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
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Marinho PR, Simas NK, Kuster RM, Duarte RS, Fracalanzza SEL, Ferreira DF, Romanos MTV, Muricy G, Giambiagi-Demarval M, Laport MS. Antibacterial activity and cytotoxicity analysis of halistanol trisulphate from marine sponge Petromica citrina. J Antimicrob Chemother 2012; 67:2396-400. [PMID: 22729926 DOI: 10.1093/jac/dks229] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES An aqueous extract and fraction from the marine sponge Petromica citrina have antibacterial activity. We performed a chemical and biological characterization of the antibiotic substance from P. citrina and investigated its mode of action on Staphylococcus aureus cells. METHODS The inhibitory activity of the aqueous extract of P. citrina was determined against 14 bacteria belonging to type strains and clinical antibiotic-resistant strains. The aqueous extract was fractionated under bioassay guidance and the bioactive substance was identified by its (1)H-NMR, (13)C-NMR and mass spectra. The MIC and the MBC of this substance were determined. This substance was also subjected to cytotoxic bioassays. The mode of action on S. aureus cells was investigated by light and transmission electron microscopy analysis. RESULTS P. citrina showed a large spectrum of activity against type strains and resistant-bacteria such as S. aureus, Staphylococcus epidermidis, Enterococcus faecalis, Mycobacterium fortuitum and Neisseria gonorrhoeae. The aqueous extract was fractionated and halistanol trisulphate (24ε,25-dimethylcholestane-2β,3α,6α-triol trisodium sulphate) was isolated for the first time from P. citrina. Halistanol trisulphate had a bactericidal effect on exponentially growing S. aureus cells at the MIC (512 mg/L). Cytotoxicity biossays showed moderate toxicity against cancer cell line L929 (fibrosarcoma). This substance apparently acts by damaging the cell membrane, with subsequent cell lysis. CONCLUSIONS Halistanol trisulphate is a broad-spectrum antibiotic isolated from P. citrina with a mode of action involving disruption of the cytoplasmic membrane. It is a new candidate for research on antibacterial substances.
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Affiliation(s)
- Palloma R Marinho
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Cidade Universitária, 21941-590, Rio de Janeiro, Brazil
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Sobral LF, Duarte RS, Vieira GBDO, Silva MGD, Boechat N, Fonseca LDS. Identification of Mycobacterium bovis among mycobacterial isolates from human clinical specimens at a university hospital in Rio de Janeiro, Brazil. J Bras Pneumol 2012; 37:664-8. [PMID: 22042400 DOI: 10.1590/s1806-37132011000500015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2010] [Accepted: 05/02/2011] [Indexed: 11/22/2022] Open
Abstract
In 2005 and 2006, 8,121 clinical specimens submitted to the Mycobacteriology Laboratory of the Clementino Fraga Filho University Hospital/Thoracic Diseases Institute, in the city of Rio de Janeiro, Brazil, were inoculated on Löwenstein-Jensen medium containing glycerol and pyruvate. There were 79 mycobacteria isolates that presented growth only on pyruvate-containing medium, and those isolates were selected for the presumptive identification of Mycobacterium bovis. The selected isolates were screened with biochemical tests, PCR amplification (with the specific primers Rv0577 and Rv1510), and pyrazinamide susceptibility tests. All of the strains isolated showed specific phenotypical and genotypical patterns characteristic of M. tuberculosis, and no M. bovis strains were detected.
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Sabagh BP, Souto ADSS, Reis LM, Silva SAD, Pereira DCR, Neves MDC, Pinheiro RR, Duarte RS, Miyazaki NHT, Bôas MHSV. Comparative study with two different enrichments in the culture media used in the disinfectant efficacy assay. J Microbiol Methods 2011; 88:255-62. [PMID: 22197720 DOI: 10.1016/j.mimet.2011.12.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2011] [Revised: 12/06/2011] [Accepted: 12/07/2011] [Indexed: 10/14/2022]
Abstract
Recent changes in Brazilian legislation for commercial disinfectants have been published due to the recent epidemic of nosocomial infections caused by rapidly growing mycobacteria (RGM) in many states of Brazil over the last 8years. One of these documents requires that all the manufacturers provide evidence of efficacy of sterilizing and disinfectant products, used for semi critical medical devices, against the Mycobacterium bovis BCG Moreau and Mycobacterium abscessus subsp. bolletii INCQS 00594 strains by using the Confirmative in vitro Test for Determining Tuberculocidal Activity of Disinfectants recommended by the Association of Official Analytical Chemists. These changes have caused additional costs and increased problems for importation of enrichment products at national laboratories where disinfectant efficacy assay service is performed. Middlebrook ADC Enrichment (ADC) is provided by a unique manufacturer and used in the official protocol. The aim of the present study was to evaluate an alternative in house low-cost enrichment composed of fetal bovine serum and glucose (FBSG) with ADC for performance of disinfectant efficacy assay against mycobacteria. After obtaining the growth curves for M. abscessus ATCC 19977, M. abscessus subsp. bolletii INCQS 00594, Mycobacterium chelonae ATCC 35752, and Mycobacterium fortuitum ATCC 6841 by using ADC enrichment and FBSG in Kirchners and 7H9 culture media. Through statistical analysis via the Kruskal-Wallis test on the evaluation of microorganism growth rate, it was observed that there was no inhibition of RGM growth by any of the enrichments used. These results suggest that low-cost enrichment FBSG may be used as a potential substitute of ADC for composition of media for mycobacterial growth, including in disinfectant tests.
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Affiliation(s)
- Bruna Peres Sabagh
- Departamento de Microbiologia, Instituto Nacional de Controle de Qualidade em Saúde, Fundação Oswaldo Cruz, Av Brasil 4365, 21040-900 Rio de Janeiro, Brazil.
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Medeiros L, Marassi CD, Duarte RS, da Silva MG, Lilenbaum W. Comparison of decontamination methods for primary isolation of Mycobacterium bovis in paucibacillary bovine tissues. Lett Appl Microbiol 2011; 54:182-6. [PMID: 22118726 DOI: 10.1111/j.1472-765x.2011.03185.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
AIMS To compare three decontamination methods applied to paucibacillary samples for primary isolation of Mycobacterium bovis from suspect lesions. Tuberculosis caused by Myco. bovis is an important infectious disease of cattle in Brazil and also has zoonotic potential. Although a national campaign based on testing and slaughtering cattle has achieved good results, there is a strong need to develop better diagnostic methods to identify cattle with recent infections harbouring few bacilli. METHODS AND RESULTS A dairy herd (274 adult crossbred cows) located in the state of Rio de Janeiro was tested for tuberculosis with both single intradermal tuberculin test and comparative intradermal tuberculin test. Reactive cows (n=27, 9.8%) were slaughtered and suspect lesions were collected (one sample per cow). Samples considered paucibacillary (based on microscopy) were decontaminated with 0.75% hexadecylpyridinium chloride (HPC), 4% sodium hydroxide (Petroff) or 6% sulphuric acid. Using these methods, 10, five and six, respectively, of the 27 samples yielded positive cultures. Overall, Myco.bovis was isolated from 14 of 24 cows. Although the HPC method resulted in isolation of more Myco.bovis strains than either Petroff or sulphuric acid methods (P=0.015), it did not result in the recovery of Myco.bovis from all samples. However, using both HPC and 6% sulphuric acid methods for decontamination was possible to identify 13 of 14 (92·9%) of infected cows. CONCLUSIONS At least two methods should be used concurrently for primary isolation of Myco. bovis from bovine tissues, particularly for paucibacillary samples. SIGNIFICANCE AND IMPACT OF THE STUDY Detection of low numbers of Myco.bovis in tissue is an important goal in optimizing the detection of bovine tuberculosis and should assist in identification of infected cattle, in particular, those with few Myco.bovis bacilli. This was apparently the first study comparing three decontamination methods for the detection of Myco.bovis in paucibacillary samples from naturally infected cattle.
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Affiliation(s)
- L Medeiros
- Universidade Federal Fluminense, Laboratório de Bacteriologia Veterinária, Rua Hernani Mello, Niterói-RJ, Brazil.
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Monego F, Duarte RS, Nakatani SM, Araújo WN, Riediger IN, Brockelt S, Souza V, Cataldo JI, Dias RCDS, Biondo AW. Molecular identification and typing of Mycobacterium massiliense isolated from postsurgical infections in Brazil. Braz J Infect Dis 2011. [DOI: 10.1590/s1413-86702011000500004] [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: 11/22/2022] Open
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Shang S, Gibbs S, Henao-Tamayo M, Shanley CA, McDonnell G, Duarte RS, Ordway DJ, Jackson M. Increased virulence of an epidemic strain of Mycobacterium massiliense in mice. PLoS One 2011; 6:e24726. [PMID: 21931831 PMCID: PMC3171484 DOI: 10.1371/journal.pone.0024726] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2011] [Accepted: 08/19/2011] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Chronic pulmonary disease and skin/soft tissue infections due to non-tuberculous mycobacteria (NTM) of the Mycobacterium chelonae-abscessus-massiliense group is an emerging health problem worldwide. Moreover, the cure rate for the infections this group causes is low despite aggressive treatment. Post-surgical outbreaks that reached epidemic proportions in Brazil recently were caused by M. massiliense isolates resistant to high-level disinfection with glutaraldehyde (GTA). Understanding the differences in the virulence and host immune responses induced by NTM differing in their sensitivity to disinfectants, and therefore their relative threat of causing outbreaks in hospitals, is an important issue. METHODOLOGY/PRINCIPAL FINDING We compared the replication and survival inside macrophages of a GTA-susceptible reference Mycobacterium massiliense clinical isolate CIP 108297 and an epidemic strain from Brazil, CRM-0019, and characterized the immune responses of IFNγ knockout mice exposed to a high dose aerosol with these two isolates. CRM-0019 replicated more efficiently than CIP 108297 inside mouse bone marrow macrophages. Moreover, the animals infected with CRM-0019 showed a progressive lung infection characterized by a delayed influx of CD4+ and CD8+ T cells, culminating in extensive lung consolidation and demonstrated increased numbers of pulmonary CD4+ Foxp3+ regulatory T cells compared to those infected with the reference strain. Immunosuppressive activity of regulatory T cells may contribute to the progression and worsening of NTM disease by preventing the induction of specific protective immune responses. CONCLUSIONS/SIGNIFICANCE These results provide the first direct evidence of the increased virulence in macrophages and mice and pathogenicity in vivo of the Brazilian epidemic isolate and the first observation that NTM infections can be associated with variable levels of regulatory T cells which may impact on their virulence and ability to persist in the host.
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Affiliation(s)
- Shaobin Shang
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, Colorado, United States of America
| | - Sara Gibbs
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, Colorado, United States of America
| | - Marcela Henao-Tamayo
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, Colorado, United States of America
| | - Crystal A. Shanley
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, Colorado, United States of America
| | | | - Rafael Silva Duarte
- Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Diane J. Ordway
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, Colorado, United States of America
- * E-mail: (MJ); D.Ordway-Rodriguez@ colostate.edu (DJO)
| | - Mary Jackson
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, Colorado, United States of America
- * E-mail: (MJ); D.Ordway-Rodriguez@ colostate.edu (DJO)
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de Moura VCN, da Silva MG, Gomes KM, Coelho FS, Sampaio JLM, Mello FCDQ, Lourenço MCDS, Amorim EDLT, Duarte RS. Phenotypic and molecular characterization of quinolone resistance in Mycobacterium abscessus subsp. bolletii recovered from postsurgical infections. J Med Microbiol 2011; 61:115-125. [PMID: 21903825 DOI: 10.1099/jmm.0.034942-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Several outbreaks of infections caused by rapidly growing mycobacteria (RGM) were reported in many Brazilian states (2032 notified cases) from 2004 to 2010. Most of the confirmed cases were mainly associated with Mycobacterium massiliense (recently renamed as Mycobacterium abscessus subsp. bolletii) BRA100 clone, recovered from patients who had undergone invasive procedures in which medical instruments had not been properly sterilized and/or disinfected. Since quinolones have been an option for the treatment of general RGM infections and have been suggested for therapeutic schemes for these outbreaks, we evaluated the in vitro activities of all generations of quinolones for clinical and reference RGM by broth microdilution, and analysed the peptide sequences of the quinolone resistance determining regions (QRDRs) of GyrA and GyrB after DNA sequencing followed by amino acid translation. Fifty-four isolates of M. abscessus subsp. bolletii, including clone BRA100, recovered in different states of Brazil, and 19 reference strains of RGM species were characterized. All 54 M. abscessus subsp. bolletii isolates were resistant to all generations of quinolones and showed the same amino acids in the QRDRs, including the Ala-83 in GyrA, and Arg-447 and Asp-464 in GyrB, described as being responsible for an intrinsic low level of resistance to quinolones in mycobacteria. However, other RGM species showed distinct susceptibilities to this class of antimicrobials and patterns of mutations contrary to what has been traditionally defined, suggesting that other mechanisms of resistance, different from gyrA or gyrB mutations, may also be involved in resistance to high levels of quinolones.
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Affiliation(s)
- Vinicius Calado Nogueira de Moura
- Departamento de Microbiologia, Imunologia e Parasitologia, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marlei Gomes da Silva
- Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Karen Machado Gomes
- Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | | | | | | | - Rafael Silva Duarte
- Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Monego F, Duarte RS, Nakatani SM, Araújo WN, Riediger IN, Brockelt S, Souza V, Cataldo JI, da Silva Dias RC, Biondo AW. Molecular identification and typing of Mycobacterium massiliense isolated from postsurgical infections in Brazil. Braz J Infect Dis 2011; 15:436-41. [DOI: 10.1016/s1413-8670(11)70224-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2011] [Accepted: 06/29/2011] [Indexed: 10/27/2022] Open
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Lorena NSDO, Pitombo MB, Côrtes PB, Maya MCA, Silva MGD, Carvalho ACDS, Coelho FS, Miyazaki NHT, Marques EA, Chebabo A, Freitas AD, Lupi O, Duarte RS. Mycobacterium massiliense BRA100 strain recovered from postsurgical infections: resistance to high concentrations of glutaraldehyde and alternative solutions for high level disinfection. Acta Cir Bras 2011; 25:455-9. [PMID: 20877958 DOI: 10.1590/s0102-86502010000500013] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2010] [Accepted: 05/19/2010] [Indexed: 12/19/2022] Open
Abstract
PURPOSE To evaluate the minimum inhibitory concentration (MIC) of GTA against these microorganisms and alternative disinfectants for high-level disinfection (HLD). METHODS Reference mycobacteria and clinical M. massiliense strains were included in this study. Active cultures were submitted to susceptibility qualitative tests with GTA dilutions (ranging from 1.5% to 8%), and commercial orthophthaldehyde (OPA) and peracetic acid (PA)-based solutions, during the period of exposure as recommended by National Agency of Sanitary Surveillance for HLD. RESULTS All reference and M. massiliense non-BRA100 strains, recovered from sputum, were susceptible to any GTA concentration, OPA and PA solutions. M. massiliense BRA100 strains presented MIC of 8% GTA and were susceptible to OPA and PA. CONCLUSION M. massiliense BRA100 strain is resistant to high GTA concentrations (up to 7%), which proves that this product is non-effective against specific rapidly growing mycobacteria and should be substituted by OPA or PA-based solutions for HLD.
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Padoveze MC, Madalosso G, Hadad DJ, Bravo E, Silva EC, Borba HM, Sallas J, Sampaio JLM, Ribeiro JF, Santos MDS, Duarte RS, Gomes SM, Leão SC, Brilhante VR. National evaluation of rapidly growing mycobacteria outbreaks in Brazil. BMC Proc 2011. [PMCID: PMC3239836 DOI: 10.1186/1753-6561-5-s6-p98] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Monego F, Duarte RS, Biondo AW. gyrA and gyrB gene mutation in ciprofloxacin-resistant Mycobacterium massiliense clinical isolates from Southern Brazil. Microb Drug Resist 2011; 18:1-6. [PMID: 21711149 DOI: 10.1089/mdr.2011.0047] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Fluoroquinolones (FQs) have been increasingly used for effective treatment of infections caused by rapidly growing mycobacteria, and resistance to this drug has been predominantly attributed to gyrA and gyrB mutations. Accordingly, this study investigated a total of 36 Mycobacterium massiliense clinical isolates for their susceptibility to ciprofloxacin and presence of gyrA and gyrB gene mutations. The minimal inhibitory concentration (MIC) values, determined by broth microdilution method, of 35 ciprofloxacin-resistant isolates ranged between 4 and 16 μg/mL and a single susceptible isolate was obtained. A total of 31 of 35 (88.5%) ciprofloxacin-resistant isolates presented an amino acid substitution at codon 90 (Ala-90→Val) and no isolate presented mutation at position Asp-94. Moreover, 4 of 35 (11.4%) ciprofloxacin-resistant and one susceptible isolate had no mutation in Ala-90 and Asp-94. No gyrB mutation was observed in all tested M. massiliense isolates. In conclusion, our results have shown that mutations of gyrA codon 90 are frequent and may constitute an important mechanism of resistance to FQ in M. massiliense.
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Affiliation(s)
- Fernanda Monego
- Pós-graduação em Biologia Celular e Molecular, Universidade Federal do Paraná, Curitiba, Paraná, Brazil.
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Leão SC, Duarte RS, Chimara E. Prokaryotic taxonomy rules and nomenclature changes in the Mycobacterium chelonae–abscessus group: author reply. Future Microbiol 2010. [DOI: 10.2217/fmb.10.121] [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: 11/21/2022] Open
Affiliation(s)
- Sylvia Cardoso Leão
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São Paulo, Rua Botucatu 862 3° andar, São Paulo-SP, Brazil
| | - Rafael Silva Duarte
- Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Erica Chimara
- Setor de Micobactérias, Instituto Adolfo Lutz, São Paulo, SP, Brazil
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Leão SC, Viana-Niero C, Matsumoto CK, Lima KVB, Lopes ML, Palaci M, Hadad DJ, Vinhas S, Duarte RS, Lourenço MCS, Kipnis A, das Neves ZC, Gabardo BMA, Ribeiro MO, Baethgen L, de Assis DB, Madalosso G, Chimara E, Dalcolmo MP. Epidemic of surgical-site infections by a single clone of rapidly growing mycobacteria in Brazil. Future Microbiol 2010; 5:971-80. [DOI: 10.2217/fmb.10.49] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: Our aim is to investigate if the clusters of postsurgical mycobacterial infections, reported between 2004 and 2008 in seven geographically distant states in Brazil, were caused by a single mycobacterial strain. Materials & methods: Available information from 929 surgical patients was obtained from local health authorities. A total of 152 isolates from surgical patients were identified by PCR restriction enzyme analysis of the hsp65 gene (PRA-hsp65) and sequencing of the rpoB gene. Isolates were typed by pulsed-field gel electrophoresis (PFGE) using two restriction enzymes, DraI and AseI. A total of 15 isolates not related to surgical cases were analyzed for comparison. Results: All isolates were identified as Mycobacterium abscessus ssp. massiliense. Isolates from surgical patients and one sputum isolate grouped in a single PFGE cluster, composed of two closely related patterns, with one band difference. A total of 14 other isolates unrelated to surgical cases showed distinctive PFGE patterns. Conclusion: A particular strain of M. abscessus ssp. massiliense was associated with a prolonged epidemic of postsurgical infections in seven Brazilian states, suggesting that this strain may be distributed in Brazilian territory and better adapted to cause surgical-site infections.
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Affiliation(s)
| | - Cristina Viana-Niero
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São Paulo, Rua Botucatu, 862 3° Andar, 04023-062 – São Paulo, SP, Brazil
| | - Cristianne Kayoko Matsumoto
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São Paulo, Rua Botucatu, 862 3° Andar, 04023-062 – São Paulo, SP, Brazil
| | | | | | - Moisés Palaci
- Núcleo de Doenças Infecciosas, Universidade Federal do Espírito Santo, Vitória, ES, Brazil
| | - David Jamil Hadad
- Núcleo de Doenças Infecciosas, Universidade Federal do Espírito Santo, Vitória, ES, Brazil
| | - Solange Vinhas
- Núcleo de Doenças Infecciosas, Universidade Federal do Espírito Santo, Vitória, ES, Brazil
| | - Rafael Silva Duarte
- Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | | | - André Kipnis
- Departamento de Microbiologia, Imunologia, Parasitologia e Patologia, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | | | | | | | | | | | - Geraldine Madalosso
- Centro de Vigilância Epidemiológica Professor Alexandre Vranjac, São Paulo, SP, Brazil
| | - Erica Chimara
- Setor de Micobactérias, Instituto Adolfo Lutz, São Paulo, SP, Brazil
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Pitombo MB, Lupi O, Duarte RS. [Infections by rapidly growing mycobacteria resistant to disinfectants: a national matter?]. Rev Bras Ginecol Obstet 2010; 31:529-33. [PMID: 20084322 DOI: 10.1590/s0100-72032009001100001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2009] [Accepted: 09/21/2009] [Indexed: 11/22/2022] Open
Abstract
Rapidly growing mycobacteria (RGM) are opportunistic microorganisms and widely distributed into aqueous environment and soil. Human RGM infections are usually associated with contaminated solutions or medical instruments used during invasive procedures. RGM postsurgical infections have recently emerged in Brazil and have caused national alert, considering the risk factors and epidemiological aspects. This study aimed at analysing the main factors linked to the recent RGM outbreaks, with focus on the national epidemic of Mycobacterium massiliense infections related to the BRA100 strains resistant to 2% glutaraldehyde commercial solutions commonly used for preoperative high-level disinfection. Based on previous studies and laboratorial results of assays and colaborations, it has been observed that the cases have been associated with videolaparoscopy for different applications and elective esthetic procedures, such as lipoaspiration and mammary prosthesis implant. Furthermore, outbreaks between 2004 and 2008 and the epidemic in Rio de Janeiro state may be considered particular Brazilian events. Although there are a few epidemiological published studies, some hypotheses based on common aspects related to most national nosocomial occurrences are possible, such as lack of protocols for cleaning and high-level disinfection, use of 2% glutaraldehyde as high-level disinfectant for surgical instruments, and dissemination of M. massiliense BRA100 by unknown mechanisms.
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Affiliation(s)
- Marcos Bettini Pitombo
- Departamento de Cirurgia Geral, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
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Lorena NSDO, Duarte RS, Pitombo MB. Infecção por micobactérias de crescimento rápido após procedimentos videocirúrgicos - a hipótese do glutaraldeído. Rev Col Bras Cir 2009; 36:266-7. [DOI: 10.1590/s0100-69912009000300015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2009] [Accepted: 04/15/2009] [Indexed: 11/21/2022] Open
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46
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Machado RRP, Lima Filho ES, Jardim DF, Ferreira MAA, de Faria CG, Duarte RS, Lesche B. Metabolic activity interferometer: description and calibration of an interferometric method to measure growth of mycobacteria. Eur Biophys J 2008; 38:111-9. [PMID: 18661127 DOI: 10.1007/s00249-008-0359-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2007] [Revised: 04/23/2008] [Accepted: 07/03/2008] [Indexed: 11/24/2022]
Abstract
An interferometer that measures the refractive index changes due to bacterial metabolism is described. The apparatus permits simultaneous and real time measurement of bacterial growth in several samples of slowly growing mycobacteria. The error sources are discussed and the sensitivity of the apparatus is tested. For the species Mycobacterium bovis BCG and M. smegmatis, a relation between refractive index change and bacterial concentration is determined experimentally and the time constant of bacterial growth is measured.
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Affiliation(s)
- R R P Machado
- Programa de pós-graduação de Biotecnologia Vegetal, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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47
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Merquior VLC, Gonçalves Neves FP, Ribeiro RL, Duarte RS, de Andrade Marques E, Teixeira LM. Bacteraemia associated with a vancomycin-resistant Enterococcus gallinarum strain harbouring both the vanA and vanC1 genes. J Med Microbiol 2008; 57:244-245. [DOI: 10.1099/jmm.0.47429-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A case of a post-surgical patient who developed a fatal bloodstream infection caused by high-level vancomycin-resistant Enterococcus gallinarum is reported. The isolate was found to carry both the vanC1 and vanA genes. This is the first report of an invasive infection associated with a vanA E. gallinarum isolate in Brazil.
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Affiliation(s)
| | - Felipe Piedade Gonçalves Neves
- Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Rachel Leite Ribeiro
- Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Rafael Silva Duarte
- Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | | | - Lúcia Martins Teixeira
- Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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48
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Rabello RF, Souza CRVM, Duarte RS, Lopes RMM, Teixeira LM, Castro ACD. Characterization of Staphylococcus aureus Isolates Recovered from Bovine Mastitis in Rio de Janeiro, Brazil. J Dairy Sci 2005; 88:3211-9. [PMID: 16107411 DOI: 10.3168/jds.s0022-0302(05)73004-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [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: 11/19/2022]
Abstract
Phenotypic characteristics, antimicrobial susceptibility, and genetic relationships were analyzed in 107 Staphylococcus aureus isolates recovered from cows with subclinical mastitis in Southeastern Brazil. Thirteen different biochemical patterns were detected among isolates. A predominant pattern represented by about 54% of the isolates was distributed among several herds. Isolates of distinct phenotypic profiles were also detected within a herd. Susceptibility to ampicillin, cefotaxime, cephalotin, chloramphenicol, erythromycin, gentamycin, kanamycin, nitrofurantoin, norfloxacin, ofloxacin, oxacillin, penicillin, rifampin, sulfamethoxazole-trimethoprim, tetracycline, trimethoprim, and vancomycin, determined by the disk diffusion method, was observed in 44.9% of isolates. On the other hand, 55.1, 7.4, and 2.8% of the strains were resistant to ampicillin/penicillin, tetracycline, and erythromycin, respectively. Genetic diversity was analyzed by pulsed-field gel electrophoresis using SmaI as the restriction enzyme. All isolates could be typed by pulsed-field gel electrophoresis, which identified 16 types and 24 subtypes. Type A and its subtypes comprised 54.2% of all isolates and were recovered from 6 of the 9 herds analyzed. Other types and subtypes were also found in multiple herds. Although multiple types and subtypes were found within a specific herd, a predominant type was frequently observed.
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Affiliation(s)
- R F Rabello
- Instituto de Microbiologia, Universidade Federal do Rio de Janeiro CCS, Bloco I, Cidade Universitária, Rio de Janeiro, RJ, 21941-590, Brazil
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Duarte RS, Polycarpo CR, Wait R, Hartmann R, Bergter EB. Structural characterization of neutral glycosphingolipids from Fusarium species. Biochim Biophys Acta 1998; 1390:186-96. [PMID: 9507119 DOI: 10.1016/s0005-2760(97)00179-3] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Glycosphingolipids were extracted from hyphae of Fusarium solani and from an unnamed Fusarium species, and were purified by silica and Iatrobead column chromatography. Their structures were determined by compositional analysis, nuclear magnetic resonance spectroscopy, gas chromatography/mass spectrometry and by fast atom bombardment mass spectrometry of the native and peracetylated materials, which defined their sugar, long-chain base and fatty acid compositions. The locations of the double bonds in the bases were established by 2D NMR spectroscopy and by novel mass spectrometric approaches, including collisional activation of the protonated and lithium-cationized glycosphingolipids, and of the sphingadienene-derived fragment ion at m/z 276. From these results we propose that the structures of the glycosphingolipids from F. solani and Fusarium sp. are N-2'-hydroxyoctadecanoyl-1-O-beta-D-glucopyranosyl-9-methyl-4, 8-sphingadienine and N-2'-hydroxyoctadecenoyl-1-O-beta-D-glucopyranosyl-9-methyl-4, 8-sphingadienine, respectively.
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Affiliation(s)
- R S Duarte
- Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, 21 944 970-Cidade Universitária, Rio de Janeiro, RJ, Brazil
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Parreira JM, Correia LG, Pereira E, Duarte RS, Pape E. Antihypertensive efficacy, safety, and tolerability of isradipine in hypertensive patients with diabetes. Am J Hypertens 1993; 6:104S-106S. [PMID: 8466716 DOI: 10.1093/ajh/6.3.104s] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [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: 01/30/2023] Open
Abstract
The aim of this study was to investigate the efficacy, tolerability, and safety of isradipine in hypertensive diabetic patients. Twenty-eight patients (14 men and 14 women), of whom 15 had type II (non-insulin-dependent) and 13 had type I (insulin-dependent) diabetes mellitus, received isradipine for 6 months. A significant reduction was observed in both systolic and diastolic blood pressures (P < .00005). There were no significant differences between the type I and type II diabetes patients; metabolic control remained stable. Moderate or slight headaches were reported by four patients. In conclusion, the overall efficacy of isradipine and its tolerability were found to be very good.
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Affiliation(s)
- J M Parreira
- Diabetes and Nutrition Clinic, Santa Maria Hospital, Lisbon, Portugal
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