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Souza T, Mello E, Taveira G, Moreira F, Seabra S, Carvalho A, Gomes V. Synergistic action of synthetic peptides and amphotericin B causes disruption of the plasma membrane and cell wall in Candida albicans. Biosci Rep 2024; 44:BSR20232075. [PMID: 38563086 PMCID: PMC11016531 DOI: 10.1042/bsr20232075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 03/13/2024] [Accepted: 03/28/2024] [Indexed: 04/04/2024] Open
Abstract
The objective of this work was to evaluate the combination of synthetic peptides based on the γ-core motif of defensin PvD1 with amphotericin B (AmB) at different concentrations against Candida albicans. We applied the checkerboard assay using different concentrations of the commercial drug AmB and the synthetic peptides γ31-45PvD1++ and γ33-41PvD1++ against C. albicans, aiming to find combinations with synergistic interactions. Between these two interactions involving γ31-45PvD1++ and AmB, an additive effect was observed. One such interaction occurred at concentrations of 0.009 µM of peptide γ31-45PvD1++ and 13.23 µM of AmB and another condition of 0.019 µM of peptide γ31-45PvD1++ and 6.61 µM of AmB. The other two concentrations of the interaction showed a synergistic effect in the combination of synthetic peptide γ31-45PvD1++ and AmB, where the concentrations were 1.40 µM peptide γ31-45PvD1++ and 0.004 µM AmB and 0.70 µM γ31-45PvD1++ peptide and 0.002 µM AmB. We proceeded with analysis of the mechanism of action involving synergistic effects. This examination unveiled a range of impactful outcomes, including the impairment of mitochondrial functionality, compromise of cell wall integrity, DNA degradation, and a consequential decline in cell viability. We also observed that both synergistic combinations were capable of causing damage to the plasma membrane and cell wall, causing leakage of intracellular components. This discovery demonstrates for the first time that the synergistic combinations found between the synthetic peptide γ31-45PvD1++ and AmB have an antifungal effect against C. albicans, acting on the integrity of the plasma membrane and cell wall.
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Affiliation(s)
- Thayna A.M. Souza
- Laboratório de Fisiologia e Bioquímica de Microrganismos, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, CEP: 28013-602, Campos dos Goytacazes, RJ, Brazil
| | - Erica O. Mello
- Laboratório de Fisiologia e Bioquímica de Microrganismos, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, CEP: 28013-602, Campos dos Goytacazes, RJ, Brazil
| | - Gabriel B. Taveira
- Laboratório de Fisiologia e Bioquímica de Microrganismos, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, CEP: 28013-602, Campos dos Goytacazes, RJ, Brazil
| | - Felipe F. Moreira
- Laboratório de Biologia Celular e Tecidual, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Campos dos Goytacazes, RJ, Brazil
| | - Sergio Henrique Seabra
- Laboratório de Biologia Celular e Tecidual, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Campos dos Goytacazes, RJ, Brazil
| | - André O. Carvalho
- Laboratório de Fisiologia e Bioquímica de Microrganismos, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, CEP: 28013-602, Campos dos Goytacazes, RJ, Brazil
| | - Valdirene M. Gomes
- Laboratório de Fisiologia e Bioquímica de Microrganismos, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, CEP: 28013-602, Campos dos Goytacazes, RJ, Brazil
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Maciel-de-Freitas R, Sauer FG, Kliemke K, Garcia GA, Pavan MG, David MR, Schmidt-Chanasit J, Hoffmann A, Lühken R. Wolbachia strains wMel and wAlbB differentially affect Aedes aegypti traits related to fecundity. Microbiol Spectr 2024; 12:e0012824. [PMID: 38483475 DOI: 10.1128/spectrum.00128-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 03/01/2024] [Indexed: 04/06/2024] Open
Abstract
Two Wolbachia strains, wMel and wAlbB, have been transinfected into Aedes aegypti mosquitoes for population replacement with the aim of reducing dengue transmission. Epidemiological data from various endemic sites suggest a pronounced decrease in dengue transmission after implementing this strategy. In this study, we investigated the impact of the Wolbachia strains wMel and wAlbB on Ae. aegypti fitness in a common genetic background. We found that Ae. aegypti females infected with the wMel strain exhibited several significant differences compared with those infected with the wAlbB strain. Specifically, wMel-infected females laid significantly fewer eggs, ingested a lower amount of blood, had a reduced egg production rate, and exhibited a decreased Wolbachia density at a later age compared with mosquitoes infected with the wAlbB strain. Conversely, the wAlbB strain showed only mild negative effects when compared with Wolbachia-uninfected specimens. These differential effects on Ae. aegypti fitness following infection with either wMel or wAlbB may have important implications for the success of population replacement strategies in invading native Ae. aegypti populations in endemic settings. Further research is needed to better understand the underlying mechanisms responsible for these differences in fitness effects and their potential impact on the long-term efficacy of Wolbachia-based dengue control programs.IMPORTANCEThe transmission of arboviruses such as dengue, Zika, and chikungunya is on the rise globally. Among the most promising strategies to reduce arbovirus burden is the release of one out of two strains of Wolbachia-infected Aedes aegypti: wMel and wAlbB. One critical aspect of whether this approach will succeed involves the fitness cost of either Wolbachia strains on mosquito life history traits. For instance, we found that wMel-infected Ae. aegypti females laid significantly fewer eggs, ingested a lower amount of blood, had a reduced egg production rate, and exhibited a decreased Wolbachia density at a later age compared with mosquitoes infected with the wAlbB strain. Conversely, the wAlbB strain showed only mild negative effects when compared with Wolbachia-uninfected specimens. These differential effects on mosquito fitness following infection with either wMel or wAlbB may have important implications for the success of population replacement strategies in invading native Ae. aegypti populations.
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Affiliation(s)
- Rafael Maciel-de-Freitas
- Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
- Instituto Nacional de Ciência e Tecnologia em Entomologia Médica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Felix G Sauer
- Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | | | - Gabriela A Garcia
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Márcio G Pavan
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Mariana R David
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Jonas Schmidt-Chanasit
- Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
- Faculty of Mathematics, Informatics and Natural Sciences, University of Hamburg, Hamburg, Germany
| | - Ary Hoffmann
- Pest and Environmental Adaptation Research Group, School of BioSciences, Bio21 Institute, The University of Melbourne, Melbourne, Australia
| | - Renke Lühken
- Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
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Gutierrez MB, Arantes I, Bello G, Berto LH, Dutra LH, Kato RB, Fumian TM. Emergence and dissemination of equine-like G3P[8] rotavirus A in Brazil between 2015 and 2021. Microbiol Spectr 2024; 12:e0370923. [PMID: 38451227 DOI: 10.1128/spectrum.03709-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 02/22/2024] [Indexed: 03/08/2024] Open
Abstract
Rotavirus A (RVA) is a major cause of acute gastroenteritis globally that is classically genotyped by its two immunodominant outer capsid proteins, VP7 (G-) and VP4 (P-). Recent evidence suggests that the reassortant equine-like G3P[8] strain played a substantial role in RVA transmission in Brazil since 2015. To understand its global emergence and dissemination in Brazilian territory, stool samples collected from 11 Brazilian states (n = 919) were genotyped by RT-qPCR and proceeded to sequence the VP7 gene (n = 102, 79 being newly generated) of the G3P[8] samples with pronounced viral loads. Our phylogenetic genotyping showed that G3P[8] became the dominant strain in Brazil between 2017 and 2020, with equine-like variants representing 75%-100% of VP7 samples in this period. A Bayesian discrete phylogeographic analysis strongly suggests that the equine-like G3P[8] strain originated in Asia during the early 2010s and subsequently spread to Europe, the Caribbean, and South America. Multiple introductions were detected in Brazil between 2014 and 2017, resulting in five national clusters. The reconstruction of the effective population size of the largest Brazilian cluster showed an expansion until 2017, followed by a plateau phase until 2019 and subsequent contraction. Our study also supports that most mutations fixed during equine-like G3P[8] evolution were synonymous, suggesting that adaptive evolution was not an important driving force during viral dissemination in humans, potentially increasing its susceptibility to acquired immunity. This research emphasizes the need for comprehensive rotavirus genomic surveillance that allows close monitoring of its ever-shifting composition and informs more effective public health policies.IMPORTANCEOur original article demonstrated the origin and spread in a short time of equine-like G3P[8] in Brazil and the world. Due to its segmented genome, it allows numerous mechanisms including genetic drift and reassortment contribute substantially to the genetic diversity of rotavirus. Although the effectiveness and increasing implementation of vaccination have not been questioned, a matter of concern is its impact on the emergence of escape mutants or even the spread of unusual strains of zoonotic transmission that could drive epidemic patterns worldwide. This research emphasizes the need for comprehensive rotavirus genomic surveillance, which could facilitate the formulation of public policies aimed at preventing and mitigating its transmission.
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Affiliation(s)
| | - Ighor Arantes
- Laboratório de Arbovírus e Vírus Hemorrágicos, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Gonzalo Bello
- Laboratório de Arbovírus e Vírus Hemorrágicos, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Lúcia Helena Berto
- Coordenação Geral de Laboratórios de Saúde Pública, Ministério da Saúde, Brasília, Brazil
| | - Leonardo Hermes Dutra
- Coordenação Geral de Laboratórios de Saúde Pública, Ministério da Saúde, Brasília, Brazil
| | - Rodrigo Bentes Kato
- Coordenação Geral de Laboratórios de Saúde Pública, Ministério da Saúde, Brasília, Brazil
| | - Tulio Machado Fumian
- Laboratório de Virologia Comparada e Ambiental, Instituto Oswaldo Cruz, Rio de Janeiro, Brazil
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de Farias BDM, Desojo JB, Cerda IA, Ribeiro AM, Ferigolo J, Carlisbino T, Schultz CL, Mastrantonio BM, Soares MB. Bone histology supports gregarious behavior and an early ontogenetic stage to Decuriasuchus quartacolonia (Pseudosuchia: Loricata) from the Middle-Late Triassic of Brazil. Anat Rec (Hoboken) 2024; 307:957-973. [PMID: 38088505 DOI: 10.1002/ar.25365] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 11/26/2023] [Accepted: 11/28/2023] [Indexed: 03/16/2024]
Abstract
Decuriasuchus quartacolonia is a middle-sized basal "rauisuchian" (Pseudosuchia, Loricata) from the Triassic beds of Brazil, whose original description was based on 10 specimens of equivalent size found in aggregation. In this contribution, we explore the osteohistology of its appendicular bones and a rib, aiming to infer growth patterns and ontogeny. In all analyzed bones (except in the rib) from three individuals, we found fibrolamellar bone (FLB) throughout the cortices, a pattern shared with other histologically sampled basal loricatans. We found evidence that suggests an early ontogenetic stage for all studied specimens: absence of secondary osteons, lack of transition from an inner highly vascularized FLB matrix to a poor vascularized parallel-fibred bone, one line of arrested growth, open vascular canals in the external surface of the cortex and absence of an external fundamental system. In addition, we observed that the neurocentral sutures in the caudal to cervical vertebrae of the holotype are unfused, strongly suggesting that these individuals were not skeletally mature, as had been previously assumed. In addition, our data support the prior hypothesis that Decuriasuchus is the oldest-known archosaur to show evidence of gregarious behavior and adds a probable cause of this as a strategy to obtain food and avoid predation until becoming independent as adults. Furthermore, our results open the possibility that Decuriasuchus may represent an earlier growth stage of the larger Prestosuchus chiniquensis, with two specimens recovered from the same stratigraphic level and paleontological site. Since the adult form of Decuriasuchus remains unknown, a deeper anatomical study is needed to discuss the validity of the species. This study case exemplifies the importance of paleohistology as an essential complementary tool to describe a new morphospecies in vertebrate paleontology.
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Affiliation(s)
- Brodsky Dantas Macedo de Farias
- Programa de Pós-Graduação em Geociências, Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Julia Brenda Desojo
- CONICET-División Paleontologia Vertebrados, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Ignacio Alejandro Cerda
- Instituto de Investigación en Paleobiologia y Geología (CONICET-Universidad Nacional de Río Negro), Cipolletti, Río Negro, Argentina
| | - Ana Maria Ribeiro
- Programa de Pós-Graduação em Geociências, Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Museu de Ciências Naturais-Jardim Botânico, Secretaria do Meio Ambiente e Infraestrutura, Porto Alegre, Rio Grande do Sul, Brazil
| | - Jorge Ferigolo
- Museu de Ciências Naturais-Jardim Botânico, Secretaria do Meio Ambiente e Infraestrutura, Porto Alegre, Rio Grande do Sul, Brazil
| | - Thiago Carlisbino
- Programa de Pós-Graduação em Geociências, Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Cesar Leandro Schultz
- Programa de Pós-Graduação em Geociências, Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Bianca Martins Mastrantonio
- Programa de Pós-Graduação em Geociências, Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Marina Bento Soares
- Programa de Pós-Graduação em Geociências, Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Departamento de Geologia e Paleontologia, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Costa TFR, Catta-Preta CMC, Goundry A, Carvalho DB, Rodrigues NS, Vivarini AC, de Abreu MF, Reis FCG, Lima APCA. The ecotin-like peptidase inhibitor of Trypanosoma cruzi prevents TMPRSS2-PAR2-TLR4 crosstalk downmodulating infection and inflammation. FASEB J 2024; 38:e23566. [PMID: 38526868 DOI: 10.1096/fj.202302091rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 02/24/2024] [Accepted: 03/06/2024] [Indexed: 03/27/2024]
Abstract
Trypanosoma cruzi is the causative agent of Chagas disease, a chronic pathology that affects the heart and/or digestive system. This parasite invades and multiplies in virtually all nucleated cells, using a variety of host cell receptors for infection. T. cruzi has a gene that encodes an ecotin-like inhibitor of serine peptidases, ISP2. We generated ISP2-null mutants (Δisp2) in T. cruzi Dm28c using CRISPR/Cas9. Epimastigotes of Δisp2 grew normally in vitro but were more susceptible to lysis by human serum compared to parental and ISP2 add-back lines. Tissue culture trypomastigotes of Δisp2 were more infective to human muscle cells in vitro, which was reverted by the serine peptidase inhibitors aprotinin and camostat, suggesting that host cell epitheliasin/TMPRSS2 is the target of ISP2. Pretreatment of host cells with an antagonist to the protease-activated receptor 2 (PAR2) or an inhibitor of Toll-like receptor 4 (TLR4) selectively counteracted the increased cell invasion by Δisp2, but did not affect invasion by parental and add-back lines. The same was observed following targeted gene silencing of PAR2, TLR4 or TMPRSS2 in host cells by siRNA. Furthermore, Δisp2 caused increased tissue edema in a BALB/c mouse footpad infection model after 3 h differently to that observed following infection with parental and add-back lines. We propose that ISP2 contributes to protect T. cruzi from the anti-microbial effects of human serum and to prevent triggering of PAR2 and TLR4 in host cells, resulting in the modulation of host cell invasion and contributing to decrease inflammation during acute infection.
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Affiliation(s)
- Tatiana F R Costa
- Laboratório de Bioquímica e Biologia Molecular de Proteases, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Carolina M C Catta-Preta
- Laboratório de Bioquímica e Biologia Molecular de Proteases, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Amy Goundry
- Laboratório de Bioquímica e Biologia Molecular de Proteases, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Danielle B Carvalho
- Laboratório de Bioquímica e Biologia Molecular de Proteases, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Nathalia S Rodrigues
- Laboratório de Bioquímica e Biologia Molecular de Proteases, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Aislan C Vivarini
- Departamento de Biologia Celular e Molecular, Insituto de Biologia, Universidade Federal Fluminense, Niteroi, Brazil
| | - Mayra Fonseca de Abreu
- Laboratório de Bioquímica e Biologia Molecular de Proteases, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Flavia C G Reis
- Laboratório de Bioquímica e Biologia Molecular de Proteases, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ana Paula C A Lima
- Laboratório de Bioquímica e Biologia Molecular de Proteases, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Arantes I, Gomes M, Ito K, Sarafim S, Gräf T, Miyajima F, Khouri R, de Carvalho FC, de Almeida WAF, Siqueira MM, Resende PC, Naveca FG, Bello G. Spatiotemporal dynamics and epidemiological impact of SARS-CoV-2 XBB lineage dissemination in Brazil in 2023. Microbiol Spectr 2024; 12:e0383123. [PMID: 38315011 PMCID: PMC10913747 DOI: 10.1128/spectrum.03831-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 12/27/2023] [Indexed: 02/07/2024] Open
Abstract
The SARS-CoV-2 XBB is a group of highly immune-evasive lineages of the Omicron variant of concern that emerged by recombining BA.2-descendent lineages and spread worldwide during 2023. In this study, we combine SARS-CoV-2 genomic data (n = 11,065 sequences) with epidemiological data of severe acute respiratory infection (SARI) cases collected in Brazil between October 2022 and July 2023 to reconstruct the space-time dynamics and epidemiologic impact of XBB dissemination in the country. Our analyses revealed that the introduction and local emergence of lineages carrying convergent mutations within the Spike protein, especially F486P, F456L, and L455F, propelled the spread of XBB* lineages in Brazil. The average relative instantaneous reproduction numbers of XBB* + F486P, XBB* + F486P + F456L, and XBB* + F486P + F456L + L455F lineages in Brazil were estimated to be 1.24, 1.33, and 1.48 higher than that of other co-circulating lineages (mainly BQ.1*/BE*), respectively. Despite such a growth advantage, the dissemination of these XBB* lineages had a reduced impact on Brazil's epidemiological scenario concerning previous Omicron subvariants. The peak number of SARI cases from SARS-CoV-2 during the XBB wave was approximately 90%, 80%, and 70% lower than that observed during the previous BA.1*, BA.5*, and BQ.1* waves, respectively. These findings revealed the emergence of multiple XBB lineages with progressively increasing growth advantage, yet with relatively limited epidemiological impact in Brazil throughout 2023. The XBB* + F486P + F456L + L455F lineages stand out for their heightened transmissibility, warranting close monitoring in the months ahead. IMPORTANCE Brazil was one the most affected countries by the SARS-CoV-2 pandemic, with more than 700,000 deaths by mid-2023. This study reconstructs the dissemination of the virus in the country in the first half of 2023, a period characterized by the dissemination of descendants of XBB.1, a recombinant of Omicron BA.2 lineages evolved in late 2022. The analysis supports that XBB dissemination was marked by the continuous emergence of indigenous lineages bearing similar mutations in key sites of their Spike protein, a process followed by continuous increments in transmissibility, and without repercussions in the incidence of severe cases. Thus, the results suggest that the epidemiological impact of the spread of a SARS-CoV-2 variant is influenced by an intricate interplay of factors that extend beyond the virus's transmissibility alone. The study also underlines the need for SARS-CoV-2 genomic surveillance that allows the monitoring of its ever-shifting composition.
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Affiliation(s)
- Ighor Arantes
- Laboratório de Arbovírus e Vírus Hemorrágicos, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Marcelo Gomes
- Grupo de Métodos Analíticos em Vigilância Epidemiológica, Fiocruz, Rio de Janeiro, Brazil
| | - Kimihito Ito
- International Institute for Zoonosis Control, Hokkaido University, Hokkaido, Japan
| | - Sharbilla Sarafim
- Laboratório de Arbovírus e Vírus Hemorrágicos, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Tiago Gräf
- Laboratório de Virologia Molecular, Instituto Carlos Chagas, Fiocruz, Curitiba, Brazil
| | | | | | - Felipe Cotrim de Carvalho
- Departamento do Programa Nacional de Imunizações, Coordenação-Geral de Vigilância das doenças imunopreveníveis, Secretaria de Vigilância em saúde e ambiente, Brasília, Brazil
| | - Walquiria Aparecida Ferreira de Almeida
- Departamento do Programa Nacional de Imunizações, Coordenação-Geral de Vigilância das doenças imunopreveníveis, Secretaria de Vigilância em saúde e ambiente, Brasília, Brazil
| | - Marilda Mendonça Siqueira
- Laboratório de Vírus Respiratórios, Exantemáticos, Enterovírus e Emergências Virais, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Paola Cristina Resende
- Laboratório de Vírus Respiratórios, Exantemáticos, Enterovírus e Emergências Virais, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Felipe Gomes Naveca
- Laboratório de Arbovírus e Vírus Hemorrágicos, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
- Núcleo de Vigilância de Vírus Emergentes, Reemergentes ou Negligenciados, Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane, Fiocruz, Manaus, Brazil
| | - Gonzalo Bello
- Laboratório de Arbovírus e Vírus Hemorrágicos, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - COVID-19 Fiocruz Genomic Surveillance Network
- Laboratório de Arbovírus e Vírus Hemorrágicos, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
- Grupo de Métodos Analíticos em Vigilância Epidemiológica, Fiocruz, Rio de Janeiro, Brazil
- International Institute for Zoonosis Control, Hokkaido University, Hokkaido, Japan
- Laboratório de Virologia Molecular, Instituto Carlos Chagas, Fiocruz, Curitiba, Brazil
- Fiocruz, Fortaleza, Brazil
- Instituto Gonçalo Moniz, Fiocruz, Salvador, Brazil
- Departamento do Programa Nacional de Imunizações, Coordenação-Geral de Vigilância das doenças imunopreveníveis, Secretaria de Vigilância em saúde e ambiente, Brasília, Brazil
- Laboratório de Vírus Respiratórios, Exantemáticos, Enterovírus e Emergências Virais, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
- Núcleo de Vigilância de Vírus Emergentes, Reemergentes ou Negligenciados, Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane, Fiocruz, Manaus, Brazil
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Lima DF, Gonçalves TS, Pestana IA, Di Beneditto APM, Franco RWDA. Elemental Concentrations in the Shells of the Mussel Perna perna: Discrimination of Origin. Biol Trace Elem Res 2024; 202:1279-1287. [PMID: 37344682 DOI: 10.1007/s12011-023-03734-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 06/15/2023] [Indexed: 06/23/2023]
Abstract
The potential use of elemental concentrations and element:calcium (Ca) ratios as indicators of provenance for bivalve mollusks on the Brazilian coast is evaluated herein for the first time. The approach was applied to shells of the mussel Perna perna (target of extractive fisheries) from geographically close areas but under distinct environmental and anthropogenic influences. Both concentrations of the elements normalized by Ca and the total concentrations can be applied to discriminate the mussels' origin. However, the canonical approach using the total concentrations indicated variations regarding the discriminatory power, and the concentrations of the elements normalized by Ca were more robust in differentiating the provenance of the shells. The origin of mussels was better discriminated by six elementary ratios: Al:Ca, Fe:Ca, K:Ca, Mg:Ca, Mn:Ca and Na:Ca. Thus, monitoring studies aiming to discriminate the origin of P. perna individuals along their distribution based on these elementary ratios of the shell are recommended.
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Affiliation(s)
- Dayvison Felismindo Lima
- Laboratório de Ciências Físicas, Universidade Estadual Do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000, Campos Dos Goytacazes, RJ, 28013-602, Brazil
| | - Thaluana Silva Gonçalves
- Laboratório de Ciências Físicas, Universidade Estadual Do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000, Campos Dos Goytacazes, RJ, 28013-602, Brazil
| | - Inácio Abreu Pestana
- Laboratório de Ciências Ambientais, Universidade Estadual Do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000, Campos Dos Goytacazes, RJ, 28013-602, Brazil
| | - Ana Paula Madeira Di Beneditto
- Laboratório de Ciências Ambientais, Universidade Estadual Do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000, Campos Dos Goytacazes, RJ, 28013-602, Brazil
| | - Roberto Weider de Assis Franco
- Laboratório de Ciências Físicas, Universidade Estadual Do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000, Campos Dos Goytacazes, RJ, 28013-602, Brazil.
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Ferreira MDS, Gonçalves DDS, Mendoza SR, de Oliveira GA, Pontes B, la Noval CRD, Honorato L, Ramos LFC, Nogueira FCS, Domont GB, Casadevall A, Nimrichter L, Peralta JM, Guimaraes AJ. β-1,3-Glucan recognition by Acanthamoeba castellanii as a putative mechanism of amoeba-fungal interactions. Appl Environ Microbiol 2024; 90:e0173623. [PMID: 38259076 PMCID: PMC10880599 DOI: 10.1128/aem.01736-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 12/15/2023] [Indexed: 01/24/2024] Open
Abstract
In this study, we conducted an in-depth analysis to characterize potential Acanthamoeba castellanii (Ac) proteins capable of recognizing fungal β-1,3-glucans. Ac specifically anchors curdlan or laminarin, indicating the presence of surface β-1,3-glucan-binding molecules. Using optical tweezers, strong adhesion of laminarin- or curdlan-coated beads to Ac was observed, highlighting their adhesive properties compared to controls (characteristic time τ of 46.9 and 43.9 s, respectively). Furthermore, Histoplasma capsulatum (Hc) G217B, possessing a β-1,3-glucan outer layer, showed significant adhesion to Ac compared to a Hc G186 strain with an α-1,3-glucan outer layer (τ of 5.3 s vs τ 83.6 s). The addition of soluble β-1,3-glucan substantially inhibited this adhesion, indicating the involvement of β-1,3-glucan recognition. Biotinylated β-1,3-glucan-binding proteins from Ac exhibited higher binding to Hc G217B, suggesting distinct recognition mechanisms for laminarin and curdlan, akin to macrophages. These observations hinted at the β-1,3-glucan recognition pathway's role in fungal entrance and survival within phagocytes, supported by decreased fungal viability upon laminarin or curdlan addition in both phagocytes. Proteomic analysis identified several Ac proteins capable of binding β-1,3-glucans, including those with lectin/glucanase superfamily domains, carbohydrate-binding domains, and glycosyl transferase and glycosyl hydrolase domains. Notably, some identified proteins were overexpressed upon curdlan/laminarin challenge and also demonstrated high affinity to β-1,3-glucans. These findings underscore the complexity of binding via β-1,3-glucan and suggest the existence of alternative fungal recognition pathways in Ac.IMPORTANCEAcanthamoeba castellanii (Ac) and macrophages both exhibit the remarkable ability to phagocytose various extracellular microorganisms in their respective environments. While substantial knowledge exists on this phenomenon for macrophages, the understanding of Ac's phagocytic mechanisms remains elusive. Recently, our group identified mannose-binding receptors on the surface of Ac that exhibit the capacity to bind/recognize fungi. However, the process was not entirely inhibited by soluble mannose, suggesting the possibility of other interactions. Herein, we describe the mechanism of β-1,3-glucan binding by A. castellanii and its role in fungal phagocytosis and survival within trophozoites, also using macrophages as a model for comparison, as they possess a well-established mechanism involving the Dectin-1 receptor for β-1,3-glucan recognition. These shed light on a potential parallel evolution of pathways involved in the recognition of fungal surface polysaccharides.
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Affiliation(s)
- Marina da Silva Ferreira
- Laboratório de Bioquímica e Imunologia das Micoses, Departamento de Microbiologia e Parasitologia, Instituto Biomédico, Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil
- Programa de Pós-Graduação em Imunologia e Inflamação, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Niterói, Rio de Janeiro, Brazil
| | - Diego de Souza Gonçalves
- Programa de Pós-Graduação em Doenças Infecciosas e Parasitárias, Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Niterói, Rio de Janeiro, Brazil
| | - Susana Ruiz Mendoza
- Laboratório de Bioquímica e Imunologia das Micoses, Departamento de Microbiologia e Parasitologia, Instituto Biomédico, Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil
- Programa de Pós-Graduação em Imunologia e Inflamação, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Niterói, Rio de Janeiro, Brazil
| | - Gabriel Afonso de Oliveira
- Laboratório de Bioquímica e Imunologia das Micoses, Departamento de Microbiologia e Parasitologia, Instituto Biomédico, Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil
| | - Bruno Pontes
- Instituto de Ciências Biomédicas e Centro Nacional de Biologia Estrutural e Bioimagem, Universidade Federal do Rio de Janeiro, Niterói, Rio de Janeiro, Brazil
| | - Claudia Rodríguez-de la Noval
- Laboratório de Bioquímica e Imunologia das Micoses, Departamento de Microbiologia e Parasitologia, Instituto Biomédico, Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil
- Programa de Pós-Graduação em Doenças Infecciosas e Parasitárias, Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Niterói, Rio de Janeiro, Brazil
| | - Leandro Honorato
- Laboratório de Glicobiologia de Eucariotos, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Niterói, Rio de Janeiro, Brazil
| | - Luis Felipe Costa Ramos
- Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Niterói, Rio de Janeiro, Brazil
| | - Fábio C. S. Nogueira
- Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Niterói, Rio de Janeiro, Brazil
| | - Gilberto B. Domont
- Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Niterói, Rio de Janeiro, Brazil
| | - Arturo Casadevall
- Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Leonardo Nimrichter
- Programa de Pós-Graduação em Imunologia e Inflamação, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Niterói, Rio de Janeiro, Brazil
- Laboratório de Glicobiologia de Eucariotos, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Niterói, Rio de Janeiro, Brazil
- Rede Micologia RJ - Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ), Niterói, Rio de Janeiro, Brazil
| | - Jose Mauro Peralta
- Programa de Pós-Graduação em Doenças Infecciosas e Parasitárias, Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Niterói, Rio de Janeiro, Brazil
| | - Allan J. Guimaraes
- Laboratório de Bioquímica e Imunologia das Micoses, Departamento de Microbiologia e Parasitologia, Instituto Biomédico, Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil
- Programa de Pós-Graduação em Imunologia e Inflamação, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Niterói, Rio de Janeiro, Brazil
- Rede Micologia RJ - Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ), Niterói, Rio de Janeiro, Brazil
- Pós-Graduação em Microbiologia e Parasitologia Aplicadas, Instituto Biomédico, Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil
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Borges RM, de Assis Ferreira G, Campos MM, Teixeira AM, das Neves Costa F, Chagas FO. Data Base similarity (DBsimilarity) of natural products to aid compound identification on MS and NMR pipelines, similarity networking, and more. Phytochem Anal 2024; 35:93-101. [PMID: 37592443 DOI: 10.1002/pca.3277] [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] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 08/03/2023] [Accepted: 08/05/2023] [Indexed: 08/19/2023]
Abstract
INTRODUCTION We developed Data Base similarity (DBsimilarity), a user-friendly tool designed to organize structure databases into similarity networks, with the goal of facilitating the visualization of information primarily for natural product chemists who may not have coding experience. METHOD DBsimilarity, written in Jupyter Notebooks, converts Structure Data File (SDF) files into Comma-Separated Values (CSV) files, adds chemoinformatics data, constructs an MZMine custom database file and an NMRfilter candidate list of compounds for rapid dereplication of MS and 2D NMR data, calculates similarities between compounds, and constructs CSV files formatted into similarity networks for Cytoscape. RESULTS The Lotus database was used as a source for Ginkgo biloba compounds, and DBsimilarity was used to create similarity networks including NPClassifier classification to indicate biosynthesis pathways. Subsequently, a database of validated antibiotics from natural products was combined with the G. biloba compounds to identify promising compounds. The presence of 11 compounds in both datasets points to possible antibiotic properties of G. biloba, and 122 compounds similar to these known antibiotics were highlighted. Next, DBsimilarity was used to filter the NPAtlas database (selecting only those with MIBiG reference) to identify potential antibacterial compounds using the ChEMBL database as a reference. It was possible to promptly identify five compounds found in both databases and 167 others worthy of further investigation. CONCLUSION Chemical and biological properties are determined by molecular structures. DBsimilarity enables the creation of interactive similarity networks using Cytoscape. It is also in line with a recent review that highlights poor biological plausibility and unrealistic chromatographic behaviors as significant sources of errors in compound identification.
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Affiliation(s)
- Ricardo M Borges
- Instituto de Pesquisas de Produtos Naturais Walter Mors, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Gabriela de Assis Ferreira
- Instituto de Pesquisas de Produtos Naturais Walter Mors, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Mariana Martins Campos
- Instituto de Pesquisas de Produtos Naturais Walter Mors, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Andrew Magno Teixeira
- Instituto de Pesquisas de Produtos Naturais Walter Mors, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Fernanda das Neves Costa
- Instituto de Pesquisas de Produtos Naturais Walter Mors, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Fernanda Oliveira Chagas
- Instituto de Pesquisas de Produtos Naturais Walter Mors, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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10
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Guimaraes TS, Marceliano-Alves MFV, Provenzano JC, Olivares PP, Limoeiro AGS, Alves FRF, Dias LA. Morphological assessment of the isthmus in mesial root canals of first mandibular molars. Acta Odontol Latinoam 2023; 36:163-168. [PMID: 38345278 PMCID: PMC10867857 DOI: 10.54589/aol.36/3/163] [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] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 11/01/2023] [Indexed: 02/15/2024]
Abstract
Root canal morphology and its anatomical variations pose a great challenge to endodontists. Aim The aim of this in silico study was to perform a qualitative and quantitative analysis of the threedimensional morphological characteristics of the isthmus in the mesial root canals of mandibular molars using microcomputed tomography (micro-CT). Material and Method Six hundred first mandibular molars were selected, including 317 with two mesial canals with isthmuses between the canals, and fully formed root. Isthmus morphology was determined in 3D longitudinal sections using Fan et al. (2010) classification. Root length, and the volume and area of apical and coronal level were measured. Additionally, the structural model index (SMI) of the canals were also assessed. Results The prevalence of isthmuses in the mesial root canals was 32% type II, 29% type III, 22% type IV, and 17% type I. The root length was found to be 9.1±0.5 mm, the volume and area, of all root canal system, were 41.8±40.1 mm3 and 63.6±24.2 mm2 respectively. The isthmi volume and area alone were 11.06±9.03 mm3 and 30.02±11.02 mm2. The study confirmed that isthmuses are present in mesial canals of mandibular first molars, being more frequent in the apical third. Conclusion The high prevalence of isthmuses with complex morphological features underscores the importance of using intracanal medications to disinfect areas unprepared by instruments.
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Affiliation(s)
- Thiago S Guimaraes
- Universidade Estácio de Sá, Departamento de Endodontia, Rio de Janeiro, Brasil
| | | | - José C Provenzano
- Universidade Nova Iguaçu, Programa de Pós-Graduação em Odontologia (Endodontia), Nova Iguaçu, Brasil
| | - Patricia P Olivares
- Universidade Nova Iguaçu, Programa de Pós-Graduação em Odontologia (Endodontia), Nova Iguaçu, Brasil
| | | | - Flavio RF Alves
- Universidade Nova Iguaçu, Programa de Pós-Graduação em Odontologia (Endodontia), Nova Iguaçu, Brasil
| | - Luciana A Dias
- Universidade Nova Iguaçu, Programa de Pós-Graduação em Odontologia (Endodontia), Nova Iguaçu, Brasil
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11
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Marceliano-Alves MFV, Ronquete V, Coutinho TMC, Boukpessi T, Salvioni ALF, Goulart PASR, Limoeiro AGG, Alves FRF, Amoroso-Silva PA. Unprepared areas and centralization of oval canals prepared with WaveOne Gold or XP-endo Shaper: microcomputed tomographic analyses. Acta Odontol Latinoam 2023; 36:177-182. [PMID: 38345280 PMCID: PMC10867851 DOI: 10.54589/aol.36/3/177] [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] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 11/01/2023] [Indexed: 02/15/2024]
Abstract
Current instrumentation systems cannot fully prepare oval root canal systems. This may cause accumulation of hard tissue debris and fail to eliminate bacteria from areas inaccessible to instrumentation, which could perpetuate periapical inflammation and jeopardize the success of endodontic treatment. Aim To evaluate the performance of two endodontic systems in oval canals by investigating the changes in volume, unprepared areas, and centering ability of XP-endo Shaper (XPS) and WaveOne Gold (WOG) in oval canals using microcomputed tomography (micro-CT). Materials and Method Thirty mandibular canines were scanned before and after preparation with WOG (25/.07 and 35/.06) or XPS (30/.01) to evaluate the volume, surface area, and canal centralization at 4 mm and 10 mm from the apical foramen. Results Volume and surface area increased significantly after preparation with both systems (p<0.05). However, no significant difference was observed in the unprepared areas, regarding either the entire canal (26.21% for WOG and 30.10% for XPS), or the apical segment (18.82% for WOG and 14.63% for XPS) (p >0.05). Conclusions Both systems maintained canal centralization, with no difference between them. XPS and WOG had similar shaping abilities in the mandibular canine, but left almost one third of the unprepared areas.
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Affiliation(s)
| | - Vivían Ronquete
- Universidade Iguaçu, Departmento de Endodontia, Nova Iguaçu, Rio de Janeiro, Brazil
| | - Thais MC Coutinho
- Universidade Iguaçu, Departmento de Endodontia, Nova Iguaçu, Rio de Janeiro, Brazil
| | - Tchilalo Boukpessi
- Université Paris Cité, Laboratory of Orofacial Pathologies, Imaging and Biotherapies, Laboratoire d'Excellence INFLAMEX, URP 2496, Montrouge, France
| | - Amanda LF Salvioni
- Universidade Iguaçu, Departmento de Endodontia, Nova Iguaçu, Rio de Janeiro, Brazil
| | - Paula ASR Goulart
- Universidade Iguaçu, Departmento de Endodontia, Nova Iguaçu, Rio de Janeiro, Brazil
| | | | - Flavio RF Alves
- Universidade Grande Rio, Programa de pós-graduação em Odontologia, Duque de Caxias, Brazil
| | - Pablo A Amoroso-Silva
- Universidade Grande Rio, Programa de pós-graduação em Odontologia, Duque de Caxias, Brazil
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de Almeida DV, Cezar PA, Fernandes TFB, Schwarz MGA, Mendonça-Lima L, Giacoia-Gripp CBW, Côrtes FH, Lindenmeyer Guimarães M, Pilotto JH, De Sá NBR, Cazote ADS, Gomes LR, Quintana MDSB, Ribeiro-Alves M, Coelho LE, Geraldo KM, Ribeiro MPD, Cardoso SW, Grinsztejn B, Veloso VG, Morgado MG. The impact of early anti-SARS-CoV-2 antibody production on the length of hospitalization stay among COVID-19 patients. Microbiol Spectr 2023; 11:e0095923. [PMID: 37811977 PMCID: PMC10715214 DOI: 10.1128/spectrum.00959-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 08/23/2023] [Indexed: 10/10/2023] Open
Abstract
IMPORTANCE The study provides valuable insights into the sociodemographic characteristics, clinical outcomes, and humoral immune response of those affected by the virus that has devastated every field of human life since 2019; the COVID-19 patients. Firstly, the association among clinical manifestations, comorbidities, and the production of neutralizing antibodies (Nabs) against SARS-CoV-2 is explored. Secondly, varying levels of Nabs among patients are revealed, and a significant correlation between the presence of Nabs and a shorter duration of hospitalization is identified, which highlights the potential role of Nabs in predicting clinical outcomes. Lastly, a follow-up conducted 7 months later demonstrates the progression and persistence of Nabs production in recovered unvaccinated individuals. The study contributes essential knowledge regarding the characteristics of the study population, the early humoral immune response, and the dynamics of Nabs production over time. These findings have significant implications for understanding the immune response to COVID-19 and informing clinical management approaches.
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Affiliation(s)
- Dalziza Victalina de Almeida
- Laboratório de Aids e Imunologia Molecular, Instituto Oswaldo Cruz, FUNDAÇÃO OSWALDO CRUZ, Rio de Janeiro, Brazil
| | - Priscila Alves Cezar
- Laboratório de Aids e Imunologia Molecular, Instituto Oswaldo Cruz, FUNDAÇÃO OSWALDO CRUZ, Rio de Janeiro, Brazil
| | | | - Marcos Gustavo Araujo Schwarz
- Laboratório de Genômica Funcional e Bioinformática, Instituto Oswaldo Cruz, FUNDAÇÃO OSWALDO CRUZ, Rio de Janeiro, Brazil
| | - Leila Mendonça-Lima
- Laboratório de Genômica Funcional e Bioinformática, Instituto Oswaldo Cruz, FUNDAÇÃO OSWALDO CRUZ, Rio de Janeiro, Brazil
| | | | - Fernanda Heloise Côrtes
- Laboratório de Aids e Imunologia Molecular, Instituto Oswaldo Cruz, FUNDAÇÃO OSWALDO CRUZ, Rio de Janeiro, Brazil
| | - Monick Lindenmeyer Guimarães
- Laboratório de Aids e Imunologia Molecular, Instituto Oswaldo Cruz, FUNDAÇÃO OSWALDO CRUZ, Rio de Janeiro, Brazil
| | - Jose Henrique Pilotto
- Laboratório de Aids e Imunologia Molecular, Instituto Oswaldo Cruz, FUNDAÇÃO OSWALDO CRUZ, Rio de Janeiro, Brazil
| | - Nathalia Beatriz Ramos De Sá
- Laboratório de Aids e Imunologia Molecular, Instituto Oswaldo Cruz, FUNDAÇÃO OSWALDO CRUZ, Rio de Janeiro, Brazil
| | - Andressa da Silva Cazote
- Laboratório de Aids e Imunologia Molecular, Instituto Oswaldo Cruz, FUNDAÇÃO OSWALDO CRUZ, Rio de Janeiro, Brazil
| | - Larissa Rodrigues Gomes
- Centro de Desenvolvimento Tecnológico em Saúde (CDTS)/Instituto Nacional de Ciência e Tecnologia de Inovação em Doenças Negligenciadas da População (INCT-IDPN), FUNDAÇÃO OSWALDO CRUZ, Rio de Janeiro, Brazil
| | | | - Marcelo Ribeiro-Alves
- Instituto Nacional de Infectologia Evandro Chagas, FUNDAÇÃO OSWALDO CRUZ, Rio de Janeiro, Brazil
| | - Lara Esteves Coelho
- Instituto Nacional de Infectologia Evandro Chagas, FUNDAÇÃO OSWALDO CRUZ, Rio de Janeiro, Brazil
| | - Kim Mattos Geraldo
- Instituto Nacional de Infectologia Evandro Chagas, FUNDAÇÃO OSWALDO CRUZ, Rio de Janeiro, Brazil
| | - Maria Pia Diniz Ribeiro
- Instituto Nacional de Infectologia Evandro Chagas, FUNDAÇÃO OSWALDO CRUZ, Rio de Janeiro, Brazil
| | - Sandra Wagner Cardoso
- Instituto Nacional de Infectologia Evandro Chagas, FUNDAÇÃO OSWALDO CRUZ, Rio de Janeiro, Brazil
| | - Beatriz Grinsztejn
- Instituto Nacional de Infectologia Evandro Chagas, FUNDAÇÃO OSWALDO CRUZ, Rio de Janeiro, Brazil
| | - Valdiléa G Veloso
- Instituto Nacional de Infectologia Evandro Chagas, FUNDAÇÃO OSWALDO CRUZ, Rio de Janeiro, Brazil
| | - Mariza Gonçalves Morgado
- Laboratório de Aids e Imunologia Molecular, Instituto Oswaldo Cruz, FUNDAÇÃO OSWALDO CRUZ, Rio de Janeiro, Brazil
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Aymée L, Zambrano JA, Escalona RP, Palhares K, Di Azevedo MIN, Lilenbaum W. Field application of a combined serological-molecular testing protocol for diagnosing genital leptospirosis in naturally infected cows with gestational losses. Vet Rec 2023; 193:e3309. [PMID: 37700460 DOI: 10.1002/vetr.3309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 06/29/2023] [Accepted: 07/07/2023] [Indexed: 09/14/2023]
Abstract
BACKGROUND Bovine genital leptospirosis (BGL) causes chronic reproductive disease in cattle. This study aimed to apply a combined serological-molecular testing protocol under field conditions for diagnosing BGL in cows with gestational losses. METHODS Three beef herds with reproductive failures were studied, and 60 cows with gestational losses (20 from each herd) were randomly selected for laboratory diagnosis of BGL. In addition, 40 cows with normal pregnancy were included as a control. Blood samples were collected from all 100 cows for microscopic agglutination testing, and cervicovaginal mucus (CVM) samples were collected from 28 cows with gestational losses and 20 control cows for lipL32-PCR. RESULTS All herds had high Leptospira seroreactivity (>65%), mainly against serogroup Sejroe. Ten of the 28 CVM samples from cows with gestational losses were PCR-positive, while all samples from the control group were negative (p < 0.05). LIMITATIONS Unfortunately, the positive samples did not amplify in secY-PCR for nucleotide sequencing, which would allow the identification of leptospiral strains. CONCLUSION Serology was sufficient to indicate leptospirosis at the herd level, but the definitive diagnosis of BGL was only possible using CVM PCR. Although seroreactivity against serogroup Sejroe has been associated with gestational losses, this is the first study to conduct CVM PCR as a confirmatory test for BGL diagnosis in extensive beef herds under field conditions.
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Affiliation(s)
- Luiza Aymée
- Laboratory of Veterinary Bacteriology, Biomedical Institute of Fluminense Federal University, Niterói, Brazil
| | | | | | - Karina Palhares
- Laboratory of Veterinary Bacteriology, Biomedical Institute of Fluminense Federal University, Niterói, Brazil
| | | | - Walter Lilenbaum
- Laboratory of Veterinary Bacteriology, Biomedical Institute of Fluminense Federal University, Niterói, Brazil
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14
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Soares VC, Dias SSG, Santos JC, Azevedo-Quintanilha IG, Moreira IBG, Sacramento CQ, Fintelman-Rodrigues N, Temerozo JR, da Silva MAN, Barreto-Vieira DF, Souza TM, Bozza PT. Inhibition of the SREBP pathway prevents SARS-CoV-2 replication and inflammasome activation. Life Sci Alliance 2023; 6:e202302049. [PMID: 37669865 PMCID: PMC10481517 DOI: 10.26508/lsa.202302049] [Citation(s) in RCA: 3] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 08/26/2023] [Accepted: 08/28/2023] [Indexed: 09/07/2023] Open
Abstract
SARS-CoV-2 induces major cellular lipid rearrangements, exploiting the host's metabolic pathways to replicate. Sterol regulatory element binding proteins (SREBPs) are a family of transcription factors that control lipid metabolism. SREBP1 is associated with the regulation of fatty acids, whereas SREBP2 controls cholesterol metabolism, and both isoforms are associated with lipid droplet (LD) biogenesis. Here, we evaluated the effect of SREBP in a SARS-CoV-2-infected lung epithelial cell line (Calu-3). We showed that SARS-CoV-2 infection induced the activation of SREBP1 and SREBP2 and LD accumulation. Genetic knockdown of both SREBPs and pharmacological inhibition with the dual SREBP activation inhibitor fatostatin promote the inhibition of SARS-CoV-2 replication, cell death, and LD formation in Calu-3 cells. In addition, we demonstrated that SARS-CoV-2 induced inflammasome-dependent cell death by pyroptosis and release of IL-1β and IL-18, with activation of caspase-1, cleavage of gasdermin D1, was also reduced by SREBP inhibition. Collectively, our findings help to elucidate that SREBPs are crucial host factors required for viral replication and pathogenesis. These results indicate that SREBP is a host target for the development of antiviral strategies.
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Affiliation(s)
- Vinicius Cardoso Soares
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
- Centro de Pesquisa, Inovação e Vigilância em COVID-19 e Emergências Sanitárias, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
- Programa de Imunologia e Inflamação, Universidade Federal do Rio de Janeiro, (UFRJ), Rio de Janeiro, Brazil
| | - Suelen Silva Gomes Dias
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
- Centro de Pesquisa, Inovação e Vigilância em COVID-19 e Emergências Sanitárias, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
| | - Julia Cunha Santos
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
- Centro de Pesquisa, Inovação e Vigilância em COVID-19 e Emergências Sanitárias, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
| | - Isaclaudia G Azevedo-Quintanilha
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
- Centro de Pesquisa, Inovação e Vigilância em COVID-19 e Emergências Sanitárias, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
| | - Isabela Batista Gonçalves Moreira
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
- Centro de Pesquisa, Inovação e Vigilância em COVID-19 e Emergências Sanitárias, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
| | - Carolina Q Sacramento
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
- Centro de Pesquisa, Inovação e Vigilância em COVID-19 e Emergências Sanitárias, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
- Centro de Desenvolvimento Tecnológico em Saúde (CDTS) and Instituto Nacional de Ciência e Tecnologia em Inovação em Doenças de Populações Negligenciadas (INCT/IDNP), FIOCRUZ, Rio de Janeiro, Brazil
| | - Natalia Fintelman-Rodrigues
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
- Centro de Pesquisa, Inovação e Vigilância em COVID-19 e Emergências Sanitárias, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
- Centro de Desenvolvimento Tecnológico em Saúde (CDTS) and Instituto Nacional de Ciência e Tecnologia em Inovação em Doenças de Populações Negligenciadas (INCT/IDNP), FIOCRUZ, Rio de Janeiro, Brazil
| | - Jairo R Temerozo
- Laboratório de Pesquisas Sobre o Timo and Instituto Nacional de Ciência e Tecnologia em Neuroimunomodulação (INCT/NIM), Instituto Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
| | - Marcos Alexandre Nunes da Silva
- Laboratório de Morfologia e Morfogênese Viral, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
| | - Debora Ferreira Barreto-Vieira
- Laboratório de Morfologia e Morfogênese Viral, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
| | - Thiago Ml Souza
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
- Centro de Pesquisa, Inovação e Vigilância em COVID-19 e Emergências Sanitárias, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
- Centro de Desenvolvimento Tecnológico em Saúde (CDTS) and Instituto Nacional de Ciência e Tecnologia em Inovação em Doenças de Populações Negligenciadas (INCT/IDNP), FIOCRUZ, Rio de Janeiro, Brazil
| | - Patricia T Bozza
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
- Centro de Pesquisa, Inovação e Vigilância em COVID-19 e Emergências Sanitárias, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
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Conceição RAD, von Ranke N, Azevedo L, Franco D, Nadur NF, Kummerle AE, Barbosa MLDC, Souza AMT. Structure-based design of new N-benzyl-piperidine derivatives as multitarget-directed AChE/BuChE inhibitors for Alzheimer's disease. J Cell Biochem 2023; 124:1734-1748. [PMID: 37796142 DOI: 10.1002/jcb.30483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/16/2023] [Accepted: 09/20/2023] [Indexed: 10/06/2023]
Abstract
The pathogenic complexity of Alzheimer's disease (AD) demands the development of multitarget-directed agents aiming at improving actual pharmacotherapy. Based on the cholinergic hypothesis and considering the well-established role of butyrylcholinesterase (BuChE) in advanced stages of AD, the chemical structure of the acetylcholinesterase (AChE) inhibitor drug donepezil (1) was rationally modified for the design of new N-benzyl-piperidine derivatives (4a-d) as potential multitarget-direct AChE and BuChE inhibitors. The designed analogues were further studied through the integration of in silico and in vitro methods. ADMET predictions showed that 4a-d are anticipated to be orally bioavailable, able to cross the blood-brain barrier and be retained in the brain, and to have low toxicity. Computational docking and molecular dynamics indicated the formation of favorable complexes between 4a-d and both cholinesterases. Derivative 4a presented the lowest binding free energy estimation due to interaction with key residues from both target enzymes (-36.69 ± 4.47 and -32.23 ± 3.99 kcal/mol with AChE and BuChE, respectively). The in vitro enzymatic assay demonstrated that 4a was the most potent inhibitor of AChE (IC50 2.08 ± 0.16 µM) and BuChE (IC50 7.41 ± 0.44 µM), corroborating the in silico results and highlighting 4a as a novel multitarget-directed AChE/BuChE inhibitor.
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Affiliation(s)
- Raissa Alves da Conceição
- Laboratory of Molecular Modeling & QSAR (ModMolQSAR), Faculty of Pharmacy, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- Laboratory of Organic Synthesis and Medicinal Chemistry (LaSOQuiM), Faculty of Pharmacy, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Natalia von Ranke
- Laboratory of Molecular Modeling & QSAR (ModMolQSAR), Faculty of Pharmacy, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luciana Azevedo
- Laboratory of Molecular Diversity and Medicinal Chemistry (LaDMol-QM), Institute of Chemistry, Federal Rural University of Rio de Janeiro, Seropédica, Brazil
| | - Daiana Franco
- Laboratory of Molecular Diversity and Medicinal Chemistry (LaDMol-QM), Institute of Chemistry, Federal Rural University of Rio de Janeiro, Seropédica, Brazil
| | - Nathalia Fonseca Nadur
- Laboratory of Molecular Diversity and Medicinal Chemistry (LaDMol-QM), Institute of Chemistry, Federal Rural University of Rio de Janeiro, Seropédica, Brazil
| | - Arthur Eugen Kummerle
- Laboratory of Molecular Diversity and Medicinal Chemistry (LaDMol-QM), Institute of Chemistry, Federal Rural University of Rio de Janeiro, Seropédica, Brazil
| | - Maria Letícia de C Barbosa
- Laboratory of Organic Synthesis and Medicinal Chemistry (LaSOQuiM), Faculty of Pharmacy, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Alessandra M T Souza
- Laboratory of Molecular Modeling & QSAR (ModMolQSAR), Faculty of Pharmacy, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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16
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Rodrigues AG, Sales ARK, Faria D, Fonseca SMR, Bond MMK, Jordão CP, de Souza FR, Bittar CS, Dos Santos MHH, Sarmento AO, Negrao MV, Hajjar LA, Negrão CE, Kalil Filho R. Sympathetic neural overdrive and diminished exercise capacity in reduced ejection fraction heart failure related to anthracycline-based chemotherapy. Am J Physiol Heart Circ Physiol 2023; 325:H1126-H1132. [PMID: 37682239 DOI: 10.1152/ajpheart.00476.2023] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 09/05/2023] [Indexed: 09/09/2023]
Abstract
Cardiotoxicity is the most worrying cardiovascular alteration in patients treated with chemotherapy. To improve the understanding regarding the cardiotoxicity, we studied whether 1) patients with cardiac dysfunction related to anthracycline-based chemotherapy have augmented sympathetic nerve activity and decreased exercise capacity and 2) these responses are similar to those observed in patients with heart failure caused by other etiologies. Sixteen patients with heart failure with reduced ejection fraction related to anthracycline-based chemotherapy with or without chest radiation (HFrEFCA), 10 patients with heart failure with reduced ejection not related to cancer therapy (HFrEF), and 16 age- and body mass index (BMI)-matched healthy control subjects were studied. Left ventricular ejection fraction (LVEF, echocardiography), peak oxygen consumption (peak V̇o2, cardiopulmonary exercise test), muscle sympathetic nerve activity (MSNA, microneurography), and forearm blood flow (FBF, venous occlusion plethysmography) were measured. We found that peak oxygen consumption peak V̇o2 and LVEF were significantly reduced in patients with HFrEFCA compared with that of control subjects (P < 0.0001) but similar to those found in patients with HFrEFCA. The sympathetic nerve activity burst frequency and incidence were significantly higher in patients with HFrEFCA than that in control subjects (P < 0.0001). No differences were found between patients with HFrEF and HFrEFCA. Peak V̇o2 was inversely associated with MSNA burst frequency (r = -0.53, P = 0.002) and burst incidence (r = -0.38, P = 0.01) and directly associated with LVEF (r = 0.71, P < 0.0001). Taken together, we conclude that patients who develop heart failure due to anthracycline-based chemotherapy have sympathetic neural overdrive and reduced exercise capacity. In addition, these physiological changes are similar to those observed in patients with HFrEF.NEW & NOTEWORTHY Patients with heart failure with reduced ejection fraction related to anthracycline-based chemotherapy have increased sympathetic nerve activity and decreased exercise capacity. These alterations in autonomic control and physical capacity are similar to those observed in patients with heart failure due to other etiologies. These findings highlight the importance of special care of oncological patients treated with chemotherapy.
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Affiliation(s)
- Amanda G Rodrigues
- Research and Education Institute, Hospital Sirio Libanes, São Paulo, Brazil
- Faculdade de Medicina, Instituto do Coração, Hospital das Clínicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
| | - Allan R K Sales
- Faculdade de Medicina, Instituto do Coração, Hospital das Clínicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
- D'Or Institute for Research and Education, São Paulo, Brazil
- D'Or Institute for Research and Education, Rio de Janeiro, Brazil
| | - Diego Faria
- D'Or Institute for Research and Education, São Paulo, Brazil
- D'Or Institute for Research and Education, Rio de Janeiro, Brazil
| | - Silvia M R Fonseca
- Faculdade de Medicina, Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Universidade de São Paulo, São Paulo, Brazil
| | - Marina M K Bond
- Centro Paulista de Oncologia-Oncoclínicas, São Paulo, Brazil
| | - Camila P Jordão
- Faculdade de Medicina, Instituto do Coração, Hospital das Clínicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
| | - Francis R de Souza
- Faculdade de Medicina, Instituto do Coração, Hospital das Clínicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
| | - Cristina S Bittar
- Faculdade de Medicina, Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Universidade de São Paulo, São Paulo, Brazil
| | - Marília H H Dos Santos
- Faculdade de Medicina, Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Universidade de São Paulo, São Paulo, Brazil
| | | | - Marcelo V Negrao
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States
| | - Ludhmila A Hajjar
- Faculdade de Medicina, Instituto do Coração, Hospital das Clínicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
| | - Carlos E Negrão
- Faculdade de Medicina, Instituto do Coração, Hospital das Clínicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
- Escola de Educação Física e Esporte, Universidade de São Paulo, São Paulo, Brazil
| | - Roberto Kalil Filho
- Research and Education Institute, Hospital Sirio Libanes, São Paulo, Brazil
- Faculdade de Medicina, Instituto do Coração, Hospital das Clínicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
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Souza ARV, Brinkmann A, Esparza J, Nitsche A, Damaso CR. Gene duplication, gene loss, and recombination events with variola virus shaped the complex evolutionary path of historical American horsepox-based smallpox vaccines. mBio 2023; 14:e0188723. [PMID: 37729584 PMCID: PMC10653919 DOI: 10.1128/mbio.01887-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 07/28/2023] [Indexed: 09/22/2023] Open
Abstract
IMPORTANCE Modern smallpox vaccines, such as those used against mpox, are made from vaccinia viruses, but it is still unknown whether cowpox, horsepox, or vaccinia viruses were used in the early 20th century or earlier. The mystery began to be solved when the genomes of six historical smallpox vaccines used in the United States from 1850 to 1902 were determined. Our work analyzed in detail the genomes of these six historical vaccines, revealing a complex genomic structure. Historical vaccines are highly similar to horsepox in the core of their genomes, but some are closer to the structure of vaccinia virus at the ends of the genome. One of the vaccines is a recombinant virus with parts of variola virus recombined into its genome. Our data add valuable information for understanding the evolutionary path of current smallpox vaccines and the genetic makeup of the potentially extinct group of horsepox viruses.
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Affiliation(s)
- Aline R. V. Souza
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Annika Brinkmann
- Centre for Biological Threats and Special Pathogens 1 – Highly Pathogenic Viruses & German Consultant Laboratory for Poxviruses & WHO Collaborating Centre for Emerging Infections and Biological Threats, Robert Koch Institute, Berlin, Germany
| | - José Esparza
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Andreas Nitsche
- Centre for Biological Threats and Special Pathogens 1 – Highly Pathogenic Viruses & German Consultant Laboratory for Poxviruses & WHO Collaborating Centre for Emerging Infections and Biological Threats, Robert Koch Institute, Berlin, Germany
| | - Clarissa R. Damaso
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Portugal LCL, Ramos TC, Fernandes O, Bastos AF, Campos B, Mendlowicz MV, da Luz M, Portella C, Berger W, Volchan E, David IA, Erthal F, Pereira MG, de Oliveira L. Machine learning applied to fMRI patterns of brain activation in response to mutilation pictures predicts PTSD symptoms. BMC Psychiatry 2023; 23:719. [PMID: 37798693 PMCID: PMC10552290 DOI: 10.1186/s12888-023-05220-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 09/25/2023] [Indexed: 10/07/2023] Open
Abstract
BACKGROUND The present study aimed to apply multivariate pattern recognition methods to predict posttraumatic stress symptoms from whole-brain activation patterns during two contexts where the aversiveness of unpleasant pictures was manipulated by the presence or absence of safety cues. METHODS Trauma-exposed participants were presented with neutral and mutilation pictures during functional magnetic resonance imaging (fMRI) collection. Before the presentation of pictures, a text informed the subjects that the pictures were fictitious ("safe context") or real-life scenes ("real context"). We trained machine learning regression models (Gaussian process regression (GPR)) to predict PTSD symptoms in real and safe contexts. RESULTS The GPR model could predict PTSD symptoms from brain responses to mutilation pictures in the real context but not in the safe context. The brain regions with the highest contribution to the model were the occipito-parietal regions, including the superior parietal gyrus, inferior parietal gyrus, and supramarginal gyrus. Additional analysis showed that GPR regression models accurately predicted clusters of PTSD symptoms, nominal intrusion, avoidance, and alterations in cognition. As expected, we obtained very similar results as those obtained in a model predicting PTSD total symptoms. CONCLUSION This study is the first to show that machine learning applied to fMRI data collected in an aversive context can predict not only PTSD total symptoms but also clusters of PTSD symptoms in a more aversive context. Furthermore, this approach was able to identify potential biomarkers for PTSD, especially in occipitoparietal regions.
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Affiliation(s)
- Liana Catarina Lima Portugal
- Neurophysiology Laboratory, Department of Physiological Sciences, Roberto Alcantara Gomes Biology Institute, Biomedical Center, Universidade do Estado do Rio de Janeiro, Boulevard 28 de Setembro, 87 - Vila Isabel, Rio de Janeiro, RJ, 20551-030, Brazil
- Laboratory of Neurophysiology of Behavior, Department of Physiology and Pharmacology, Biomedical Institute, Universidade Federal Fluminense, R. Prof. Hernani Pires de Mello, 101, São Domingos, Niterói, RJ, 24210-130, Brazil
| | - Taiane Coelho Ramos
- Laboratory of Neurophysiology of Behavior, Department of Physiology and Pharmacology, Biomedical Institute, Universidade Federal Fluminense, R. Prof. Hernani Pires de Mello, 101, São Domingos, Niterói, RJ, 24210-130, Brazil
- Mídiacom Lab, Institute of Computing, Universidade Federal Fluminense, Av. Gal. Milton Tavares de Souza, s/n, São Domingos, Niterói, RJ, 24210-310, Brazil
| | - Orlando Fernandes
- Laboratory of Neurophysiology of Behavior, Department of Physiology and Pharmacology, Biomedical Institute, Universidade Federal Fluminense, R. Prof. Hernani Pires de Mello, 101, São Domingos, Niterói, RJ, 24210-130, Brazil
| | - Aline Furtado Bastos
- Laboratório de Neurobiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, 373 - Cidade Universitária da Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil
| | - Bruna Campos
- Laboratório de Neurobiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, 373 - Cidade Universitária da Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil
| | - Mauro Vitor Mendlowicz
- Linpes, Institute of Psychiatry, Universidade Federal do Rio de Janeiro, Av. Venceslau Brás, 71 - Botafogo, Rio de Janeiro, RJ, 22290-140, Brazil
| | - Mariana da Luz
- Linpes, Institute of Psychiatry, Universidade Federal do Rio de Janeiro, Av. Venceslau Brás, 71 - Botafogo, Rio de Janeiro, RJ, 22290-140, Brazil
| | - Carla Portella
- Linpes, Institute of Psychiatry, Universidade Federal do Rio de Janeiro, Av. Venceslau Brás, 71 - Botafogo, Rio de Janeiro, RJ, 22290-140, Brazil
| | - William Berger
- Linpes, Institute of Psychiatry, Universidade Federal do Rio de Janeiro, Av. Venceslau Brás, 71 - Botafogo, Rio de Janeiro, RJ, 22290-140, Brazil
| | - Eliane Volchan
- Laboratório de Neurobiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, 373 - Cidade Universitária da Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil
- Linpes, Institute of Psychiatry, Universidade Federal do Rio de Janeiro, Av. Venceslau Brás, 71 - Botafogo, Rio de Janeiro, RJ, 22290-140, Brazil
| | - Isabel Antunes David
- Laboratory of Neurophysiology of Behavior, Department of Physiology and Pharmacology, Biomedical Institute, Universidade Federal Fluminense, R. Prof. Hernani Pires de Mello, 101, São Domingos, Niterói, RJ, 24210-130, Brazil
| | - Fátima Erthal
- Laboratório de Neurobiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, 373 - Cidade Universitária da Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil
- Linpes, Institute of Psychiatry, Universidade Federal do Rio de Janeiro, Av. Venceslau Brás, 71 - Botafogo, Rio de Janeiro, RJ, 22290-140, Brazil
| | - Mirtes Garcia Pereira
- Laboratory of Neurophysiology of Behavior, Department of Physiology and Pharmacology, Biomedical Institute, Universidade Federal Fluminense, R. Prof. Hernani Pires de Mello, 101, São Domingos, Niterói, RJ, 24210-130, Brazil
| | - Leticia de Oliveira
- Laboratory of Neurophysiology of Behavior, Department of Physiology and Pharmacology, Biomedical Institute, Universidade Federal Fluminense, R. Prof. Hernani Pires de Mello, 101, São Domingos, Niterói, RJ, 24210-130, Brazil.
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Hernandes IS, Da Silva HC, Dos Santos HF, Ávila EP, De Almeida MV, De Almeida WB. Quantum chemical investigation of predominant conformation of the antibiotic azithromycin in water and DMSO solutions: thermodynamic and NMR analysis. R Soc Open Sci 2023; 10:230409. [PMID: 37830015 PMCID: PMC10565400 DOI: 10.1098/rsos.230409] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 09/12/2023] [Indexed: 10/14/2023]
Abstract
Azithromycin (AZM) is a macrolide-type antibiotic used to prevent and treat serious infections (mycobacteria or MAC) that significantly inhibit bacterial growth. Knowledge of the predominant conformation in solution is of fundamental importance for advancing our understanding of the intermolecular interactions of AZM with biological targets. We report an extensive density functional theory (DFT) study of plausible AZM structures in solution considering implicit and explicit solvent effects. The best match between the experimental and theoretical nuclear magnetic resonance (NMR) profiles was used to assign the preferred conformer in solution, which was supported by the thermodynamic analysis. Among the 15 distinct AZM structures, conformer M14, having a short intramolecular C6-OH … N H-bond, is predicted to be dominant in water and dimethyl sulfoxide (DMSO) solutions. The results indicated that the X-ray structure backbone is mostly conserved in solution, showing that large flexible molecules with several possible conformations may assume a preferential spatial orientation in solution, which is the molecular structure that ultimately interacts with biological targets.
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Affiliation(s)
- Isabel S. Hernandes
- Laboratório de Química Computacional e Modelagem Molecular (LQC-MM), Departamento de Química Inorgânica, Instituto de Química, Universidade Federal Fluminense (UFF), Outeiro de São João Batista s/n, Campus do Valonguinho, 24020-141, Centro, Niterói, RJ, Brazil
| | - Haroldo C. Da Silva
- Laboratório de Química Computacional e Modelagem Molecular (LQC-MM), Departamento de Química Inorgânica, Instituto de Química, Universidade Federal Fluminense (UFF), Outeiro de São João Batista s/n, Campus do Valonguinho, 24020-141, Centro, Niterói, RJ, Brazil
| | - Hélio F. Dos Santos
- Núcleo de Estudos em Química Computacional, Departamento de Química, Universidade Federal de Juiz de Fora, Juiz de Fora, MG 36036-900, Brazil
- Departamento de Química, ICE, Universidade Federal de Juiz de Fora (UFJF), Campus Universitário, Martelos, Juiz de Fora, MG 36036-330, Brazil
| | - Eloah P. Ávila
- Departamento de Química, ICE, Universidade Federal de Juiz de Fora (UFJF), Campus Universitário, Martelos, Juiz de Fora, MG 36036-330, Brazil
| | - Mauro V. De Almeida
- Departamento de Química, ICE, Universidade Federal de Juiz de Fora (UFJF), Campus Universitário, Martelos, Juiz de Fora, MG 36036-330, Brazil
| | - Wagner B. De Almeida
- Laboratório de Química Computacional e Modelagem Molecular (LQC-MM), Departamento de Química Inorgânica, Instituto de Química, Universidade Federal Fluminense (UFF), Outeiro de São João Batista s/n, Campus do Valonguinho, 24020-141, Centro, Niterói, RJ, Brazil
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20
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Faria D, Moll-Bernardes R, Testa L, Moniz CMV, Rodrigues EC, Mota JM, Souza FR, Alves MJNN, Ono BE, Izaias JE, Sales AO, Rodrigues TS, Salemi VMC, Jordão CP, De Angelis K, Craighead DH, Rossman MJ, Bortolotto LA, Consolim-Colombo FM, Irigoyen MCC, Seals DR, Negrão CE, Sales ARK. Neurovascular and hemodynamic responses to mental stress and exercise in severe COVID-19 survivors. Am J Physiol Regul Integr Comp Physiol 2023; 325:R269-R279. [PMID: 37449870 PMCID: PMC10625836 DOI: 10.1152/ajpregu.00111.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/27/2023] [Accepted: 07/12/2023] [Indexed: 07/18/2023]
Abstract
Previous studies show that COVID-19 survivors have elevated muscle sympathetic nerve activity (MSNA), endothelial dysfunction, and aortic stiffening. However, the neurovascular responses to mental stress and exercise are still unexplored. We hypothesized that COVID-19 survivors, compared with age- and body mass index (BMI)-matched control subjects, exhibit abnormal neurovascular responses to mental stress and physical exercise. Fifteen severe COVID-19 survivors (aged: 49 ± 2 yr, BMI: 30 ± 1 kg/m2) and 15 well-matched control subjects (aged: 46 ± 3 yr, BMI: 29 ± 1 kg/m2) were studied. MSNA (microneurography), forearm blood flow (FBF), and forearm vascular conductance (FVC, venous occlusion plethysmography), mean arterial pressure (MAP, Finometer), and heart rate (HR, ECG) were measured during a 3-min mental stress (Stroop Color-Word Test) and during a 3-min isometric handgrip exercise (30% of maximal voluntary contraction). During mental stress, MSNA (frequency and incidence) responses were higher in COVID-19 survivors than in controls (P < 0.001), and FBF and FVC responses were attenuated (P < 0.05). MAP was similar between the groups (P > 0.05). In contrast, the MSNA (frequency and incidence) and FBF and FVC responses to handgrip exercise were similar between the groups (P > 0.05). MAP was lower in COVID-19 survivors (P < 0.05). COVID-19 survivors exhibit an exaggerated MSNA and blunted vasodilatory response to mental challenge compared with healthy adults. However, the neurovascular response to handgrip exercise is preserved in COVID-19 survivors. Overall, the abnormal neurovascular control in response to mental stress suggests that COVID-19 survivors may have an increased risk to cardiovascular events during mental challenge.
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Affiliation(s)
- Diego Faria
- D'Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
- D'Or Institute for Research and Education (IDOR), São Paulo, Brazil
| | | | - Laura Testa
- D'Or Institute for Research and Education (IDOR), São Paulo, Brazil
| | - Camila M V Moniz
- D'Or Institute for Research and Education (IDOR), São Paulo, Brazil
| | - Erika C Rodrigues
- D'Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
| | - Jose M Mota
- D'Or Institute for Research and Education (IDOR), São Paulo, Brazil
| | - Francis R Souza
- Instituto do Coração, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Maria Janieire N N Alves
- Instituto do Coração, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Bruna E Ono
- D'Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
- D'Or Institute for Research and Education (IDOR), São Paulo, Brazil
| | - João E Izaias
- D'Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
- D'Or Institute for Research and Education (IDOR), São Paulo, Brazil
| | - Artur O Sales
- D'Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
- D'Or Institute for Research and Education (IDOR), São Paulo, Brazil
| | - Thais S Rodrigues
- Instituto do Coração, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Vera M C Salemi
- Instituto do Coração, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Camila P Jordão
- Instituto do Coração, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Katia De Angelis
- Department of Physiology, Federal University of São Paulo, São Paulo, Brazil
| | - Daniel H Craighead
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, Colorado, United States
| | - Matthew J Rossman
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, Colorado, United States
| | - Luiz A Bortolotto
- Instituto do Coração, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Fernanda M Consolim-Colombo
- Instituto do Coração, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Maria C C Irigoyen
- Instituto do Coração, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Douglas R Seals
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, Colorado, United States
| | - Carlos E Negrão
- Instituto do Coração, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
- Escola de Educação Física e Esporte, Universidade de São Paulo, São Paulo, Brazil
| | - Allan R K Sales
- D'Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
- D'Or Institute for Research and Education (IDOR), São Paulo, Brazil
- Instituto do Coração, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
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21
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Carneiro LDO, Mellado B, Nogueira MR, Cruz-Neto APD, Monteiro LR. Flight performance and wing morphology in the bat Carollia perspicillata: biophysical models and energetics. Integr Zool 2023; 18:876-890. [PMID: 36610047 DOI: 10.1111/1749-4877.12707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Studies on functional performance are important to understand the processes responsible for the evolution of diversity. Morphological trait variation within species influences the energetic cost of locomotion and impacts life history traits, with ecological and evolutionary consequences. This study examined wing morphology correlates of flight performance measured by energetic expenditure in the Seba's short-tailed bat, Carollia perspicillata. In the flight experiments, nature caught bats (59 females, 57 males) were allowed to fly for 3 min in a room. After each flight, thermographic images were taken to measure body temperature, and biophysical models were used to calculate sensible heat loss as a measure of energetic expenditure. Wing morphological traits were measured for each individual and associated with heat loss and power required to fly on performance surfaces. Wing morphological traits explained 7-10% of flight energetic cost, and morphologies with the best performance would save the energy equivalent to 9-30% of total daily requirements. The optimal performance areas within the C. perspicillata morphospace were consistent with predicted selection trends from the literature. A trade-off between demands for flight speed and maneuverability was observed. Wing loading and camber presented sexual dimorphism. These morphological differences are likely associated with more economical but less maneuverable flight in females, leading them to fly more often in open areas along the forest edge. Our findings demonstrate how small scale changes in wing morphology can affect life history strategies and fitness.
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Affiliation(s)
- Lucas de Oliveira Carneiro
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes, Rio de Janeiro, Brasil
| | - Breno Mellado
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes, Rio de Janeiro, Brasil
| | - Marcelo Rodrigues Nogueira
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes, Rio de Janeiro, Brasil
| | | | - Leandro Rabello Monteiro
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes, Rio de Janeiro, Brasil
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22
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Rizzo J, Trottier A, Moyrand F, Coppée JY, Maufrais C, Zimbres ACG, Dang TTV, Alanio A, Desnos-Ollivier M, Mouyna I, Péhau-Arnaude G, Commere PH, Novault S, Ene IV, Nimrichter L, Rodrigues ML, Janbon G. Coregulation of extracellular vesicle production and fluconazole susceptibility in Cryptococcus neoformans. mBio 2023; 14:e0087023. [PMID: 37310732 PMCID: PMC10470540 DOI: 10.1128/mbio.00870-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 04/17/2023] [Indexed: 06/14/2023] Open
Abstract
Resistance to fluconazole (FLC), the most widely used antifungal drug, is typically achieved by altering the azole drug target and/or drug efflux pumps. Recent reports have suggested a link between vesicular trafficking and antifungal resistance. Here, we identified novel Cryptococcus neoformans regulators of extracellular vesicle (EV) biogenesis that impact FLC resistance. In particular, the transcription factor Hap2 does not affect the expression of the drug target or efflux pumps, yet it impacts the cellular sterol profile. Subinhibitory FLC concentrations also downregulate EV production. Moreover, in vitro spontaneous FLC-resistant colonies showed altered EV production, and the acquisition of FLC resistance was associated with decreased EV production in clinical isolates. Finally, the reversion of FLC resistance was associated with increased EV production. These data suggest a model in which fungal cells can regulate EV production in place of regulating the drug target gene expression as a first line of defense against antifungal assault in this fungal pathogen. IMPORTANCE Extracellular vesicles (EVs) are membrane-enveloped particles that are released by cells into the extracellular space. Fungal EVs can mediate community interactions and biofilm formation, but their functions remain poorly understood. Here, we report the identification of the first regulators of EV production in the major fungal pathogen Cryptococcus neoformans. Surprisingly, we uncover a novel role of EVs in modulating antifungal drug resistance. Disruption of EV production was associated with altered lipid composition and changes in fluconazole susceptibility. Spontaneous azole-resistant mutants were deficient in EV production, while loss of resistance restored initial EV production levels. These findings were recapitulated in C. neoformans clinical isolates, indicating that azole resistance and EV production are coregulated in diverse strains. Our study reveals a new mechanism of drug resistance in which cells adapt to azole stress by modulating EV production.
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Affiliation(s)
- Juliana Rizzo
- Institut Pasteur, Université Paris Cité, Unité Biologie des ARN des Pathogènes Fongiques, Paris, France
- Instituto de Microbiologia Paulo de Góes (IMPG), Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Adèle Trottier
- Institut Pasteur, Université Paris Cité, Unité Biologie des ARN des Pathogènes Fongiques, Paris, France
| | - Frédérique Moyrand
- Institut Pasteur, Université Paris Cité, Unité Biologie des ARN des Pathogènes Fongiques, Paris, France
| | - Jean-Yves Coppée
- Institut Pasteur, Université Paris Cité, Unité Biologie des ARN des Pathogènes Fongiques, Paris, France
| | - Corinne Maufrais
- Institut Pasteur, Université Paris Cité, Unité Biologie des ARN des Pathogènes Fongiques, Paris, France
- Institut Pasteur, Université Paris Cité, USR 3756 IP CNRS, HUB Bioinformatique et Biostatistique, Paris, France
| | - Ana Claudia G. Zimbres
- Instituto de Microbiologia Paulo de Góes (IMPG), Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Thi Tuong Vi Dang
- Institut Pasteur, Université Paris Cité, Unité Biologie des ARN des Pathogènes Fongiques, Paris, France
| | - Alexandre Alanio
- Institut Pasteur, Université Paris Cité, Centre National de Référence Mycoses Invasives et Antifongiques, Groupe de recherche Mycologie Translationnelle, Département de Mycologie, Paris, France
- Laboratoire de parasitologie-mycologie, AP-HP, Hôpital Saint-Louis, Paris, France
| | - Marie Desnos-Ollivier
- Institut Pasteur, Université Paris Cité, Centre National de Référence Mycoses Invasives et Antifongiques, Groupe de recherche Mycologie Translationnelle, Département de Mycologie, Paris, France
| | - Isabelle Mouyna
- Institut Pasteur, Université Paris Cité, Unité Biologie des ARN des Pathogènes Fongiques, Paris, France
| | - Gérard Péhau-Arnaude
- Institut Pasteur, Université Paris Cité, Plateforme de Bio-Imagerie Ultrastructurale, Paris, France
| | - Pierre-Henri Commere
- Institut Pasteur, Université Paris Cité, Cytometry and Biomarkers, Paris, France
| | - Sophie Novault
- Institut Pasteur, Université Paris Cité, Cytometry and Biomarkers, Paris, France
| | - Iuliana V. Ene
- Institut Pasteur, Université Paris Cité, Fungal Heterogeneity Group, Paris, France
| | - Leonardo Nimrichter
- Instituto de Microbiologia Paulo de Góes (IMPG), Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marcio L. Rodrigues
- Instituto de Microbiologia Paulo de Góes (IMPG), Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Instituto Carlos Chagas, Fundação Oswaldo Cruz (FIOCRUZ), Curitiba, Brazil
| | - Guilhem Janbon
- Institut Pasteur, Université Paris Cité, Unité Biologie des ARN des Pathogènes Fongiques, Paris, France
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23
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Valdetaro L, Thomasi B, Ricciardi MC, Santos KDM, Coelho-Aguiar JDM, Tavares-Gomes AL. Enteric nervous system as a target and source of SARS-CoV-2 and other viral infections. Am J Physiol Gastrointest Liver Physiol 2023; 325:G93-G108. [PMID: 37253656 PMCID: PMC10390051 DOI: 10.1152/ajpgi.00229.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 05/02/2023] [Accepted: 05/29/2023] [Indexed: 06/01/2023]
Abstract
Coronavirus disease 2019 (COVID-19) has been demonstrated to affect several systems of the human body, including the gastrointestinal and nervous systems. The enteric nervous system (ENS) is a division of the autonomic nervous system that extends throughout the gut, regulates gastrointestinal function, and is therefore involved in most gut dysfunctions, including those resulting from many viral infections. Growing evidence highlights enteric neural cells and microbiota as important players in gut inflammation and dysfunction. Furthermore, the ENS and gastrointestinal immune system work together establishing relevant neuroimmune interactions during both health and disease. In recent years, gut-driven processes have also been implicated as players in systemic inflammation and in the initiation and propagation of several central nervous system pathologies, which seem to be hallmarks of COVID-19. In this review, we aim to describe evidence of the gastrointestinal and ENS infection with a focus on severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). We discuss here viral-induced mechanisms, neuroplasticity, and neuroinflammation to call attention to the enteric neuroglial network as a nervous system with a sensitive and crucial position to be not only a target of the new coronavirus but also a way in and trigger of COVID-19-related symptoms.
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Affiliation(s)
- Luisa Valdetaro
- Postgraduate Program in Neuroscience, Neurobiology Department, Federal Fluminense University, Niterói, Rio de Janeiro, Brazil
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, New York, United States
| | - Beatriz Thomasi
- Postgraduate Program in Neuroscience, Neurobiology Department, Federal Fluminense University, Niterói, Rio de Janeiro, Brazil
- Department of Physiology, Michigan State University, East Lansing, Michigan, United States
| | - Maria Carolina Ricciardi
- Postgraduate Program in Neuroscience, Neurobiology Department, Federal Fluminense University, Niterói, Rio de Janeiro, Brazil
| | - Karoline de Melo Santos
- Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Ana Lúcia Tavares-Gomes
- Postgraduate Program in Neuroscience, Neurobiology Department, Federal Fluminense University, Niterói, Rio de Janeiro, Brazil
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24
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de Paula B, Kieran R, Koh SSY, Crocamo S, Abdelhay E, Muñoz-Espín D. Targeting Senescence as a Therapeutic Opportunity for Triple-Negative Breast Cancer. Mol Cancer Ther 2023; 22:583-598. [PMID: 36752780 PMCID: PMC10157365 DOI: 10.1158/1535-7163.mct-22-0643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/21/2022] [Accepted: 01/19/2023] [Indexed: 02/09/2023]
Abstract
Triple-negative breast cancer (TNBC) is associated with an elevated risk of recurrence and poor prognosis. Historically, only chemotherapy was available as systemic treatment, but immunotherapy and targeted therapies currently offer prolonged benefits. TNBC is a group of diseases with heterogeneous treatment sensitivity, and resistance is inevitable and early for a large proportion of the intrinsic subtypes. Although senescence induction by anticancer therapy offers an immediate favorable clinical outcome once the rate of tumor progression reduces, these cells are commonly dysfunctional and metabolically active, culminating in treatment-resistant repopulation associated with worse prognosis. This heterogeneous response can also occur without therapeutic pressure in response to damage or oncogenic stress, playing a relevant role in the carcinogenesis. Remarkably, there is preclinical and exploratory clinical evidence to support a relevant role of senescence in treatment resistance. Therefore, targeting senescent cells has been a scientific effort in many malignant tumors using a variety of targets and strategies, including increasing proapoptotic and decreasing antiapoptotic stimuli. Despite promising results, there are some challenges to applying this technology, including the best schedule of combination, assessment of senescence, specific vulnerabilities, and the best clinical scenarios. This review provides an overview of senescence in TNBC with a focus on future-proofing senotherapy strategies.
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Affiliation(s)
- Bruno de Paula
- Breast Cancer Research Unit, Instituto Nacional de Cancer, Rio de Janeiro, Brazil
| | - Rosalind Kieran
- Early Cancer Institute, Department of Oncology, Cambridge University Hospitals Foundation Trust, Cambridge, United Kingdom
| | - Samantha Shui Yuan Koh
- Department of Medicine, Cambridge University Hospitals Foundation Trust, Cambridge, United Kingdom
| | - Susanne Crocamo
- Breast Cancer Research Unit, Instituto Nacional de Cancer, Rio de Janeiro, Brazil
| | | | - Daniel Muñoz-Espín
- Early Cancer Institute, Department of Oncology, Cambridge University Hospitals Foundation Trust, Cambridge, United Kingdom
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25
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Borges RM, Ferreira GDA, Campos MM, Teixeira AM, Costa FDN, das Chagas FO, Colonna M. NMR as a tool for compound identification in mixtures. Phytochem Anal 2023. [PMID: 37128872 DOI: 10.1002/pca.3229] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/05/2023] [Accepted: 04/07/2023] [Indexed: 05/03/2023]
Abstract
INTRODUCTION Natural products and metabolomics are intrinsically linked through efforts to analyze complex mixtures for compound annotation. Although most studies that aim for compound identification in mixtures use MS as the main analysis technique, NMR has complementary advances that are worth exploring for enhanced structural confidence. OBJECTIVE This review aimed to showcase a portfolio of the main tools available for compound identification using NMR. MATERIALS AND METHODS COLMAR, SMART-NMR, MADByTE, and NMRfilter are presented using examples collected from real samples from the perspective of a natural product chemist. Data are also made available through Zenodo so that readers can test each case presented here. CONCLUSION The acquisition of 1 H NMR, HSQC, TOCSY, HSQC-TOCSY, and HMBC data for all samples and fractions from a natural products study is strongly suggested. The same is valid for MS analysis to create a bridged analysis between both techniques in a complementary manner. The use of NOAH supersequences has also been suggested and demonstrated to save NMR time.
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Affiliation(s)
- Ricardo Moreira Borges
- Instituto de Pesquisas de Produtos Naturais Walter Mors, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Gabriela de Assis Ferreira
- Instituto de Pesquisas de Produtos Naturais Walter Mors, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Mariana Martins Campos
- Instituto de Pesquisas de Produtos Naturais Walter Mors, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Andrew Magno Teixeira
- Instituto de Pesquisas de Produtos Naturais Walter Mors, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Fernanda das Neves Costa
- Instituto de Pesquisas de Produtos Naturais Walter Mors, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Fernanda Oliveira das Chagas
- Instituto de Pesquisas de Produtos Naturais Walter Mors, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Maxwell Colonna
- Departments of Genetics and Biochemistry & Molecular Biology, Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia, USA
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26
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Girard-Dias W, Augusto I, V. A. Fernandes T, G. Pascutti P, de Souza W, Miranda K. A spatially resolved elemental nanodomain organization within acidocalcisomes in Trypanosoma cruzi. Proc Natl Acad Sci U S A 2023; 120:e2300942120. [PMID: 37036984 PMCID: PMC10120040 DOI: 10.1073/pnas.2300942120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 03/06/2023] [Indexed: 04/12/2023] Open
Abstract
How are ions distributed in the three-dimensional (3D) volume confined in a nanoscale compartment? Regulation of ionic flow in the intracellular milieu has been explained by different theoretical models and experimentally demonstrated for several compartments with microscale dimensions. Most of these models predict a homogeneous distribution of ions seconds or milliseconds after an initial diffusion step formed at the ion translocation site, leaving open questions when it comes to ion/element distribution in spaces/compartments with nanoscale dimensions. Due to the influence of compartment size on the regulation of ionic flow, theoretical variations of classical models have been proposed, suggesting heterogeneous distributions of ions/elements within nanoscale compartments. Nonetheless, such assumptions have not been fully proven for the 3D volume of an organelle. In this work, we used a combination of cutting-edge electron microscopy techniques to map the 3D distribution of diffusible elements within the whole volume of acidocalcisomes in trypanosomes. Cryofixed cells were analyzed by scanning transmission electron microscopy tomography combined with elemental mapping using a high-performance setup of X-ray detectors. Results showed the existence of elemental nanodomains within the acidocalcisomes, where cationic elements display a self-excluding pattern. These were validated by Pearson correlation analysis and in silico molecular dynamic simulations. Formation of element domains within the 3D space of an organelle is demonstrated. Distribution patterns that support the electrodiffusion theory proposed for nanophysiology models have been found. The experimental pipeline shown here can be applied to a variety of models where ion mobilization plays a crucial role in physiological processes.
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Affiliation(s)
- Wendell Girard-Dias
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro21941-902, Brazil
- Centro Nacional de Biologia Estrutural e Bioimagem, Universidade Federal do Rio de Janeiro, Rio de Janeiro21941-902, Brazil
- Instituto Nacional de Ciência e Tecnologia em Biologia Estrutural e Bioimagem - Universidade Federal do Rio de Janeiro, Rio de Janeiro21941-902, Brazil
- Plataforma de Microscopia Eletrônica Rudolf Barth, Instituto Oswaldo Cruz - Fiocruz, Rio de Janeiro21041-250, Brazil
| | - Ingrid Augusto
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro21941-902, Brazil
- Centro Nacional de Biologia Estrutural e Bioimagem, Universidade Federal do Rio de Janeiro, Rio de Janeiro21941-902, Brazil
- Instituto Nacional de Ciência e Tecnologia em Biologia Estrutural e Bioimagem - Universidade Federal do Rio de Janeiro, Rio de Janeiro21941-902, Brazil
| | - Tácio V. A. Fernandes
- Laboratório de Modelagem e Dinâmica Molecular, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro21941-902, Brazil
- Instituto de Tecnologia de Fármacos (Farmanguinhos), Fiocruz, Rio de Janeiro22775-903, Brazil
| | - Pedro G. Pascutti
- Laboratório de Modelagem e Dinâmica Molecular, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro21941-902, Brazil
| | - Wanderley de Souza
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro21941-902, Brazil
- Centro Nacional de Biologia Estrutural e Bioimagem, Universidade Federal do Rio de Janeiro, Rio de Janeiro21941-902, Brazil
- Instituto Nacional de Ciência e Tecnologia em Biologia Estrutural e Bioimagem - Universidade Federal do Rio de Janeiro, Rio de Janeiro21941-902, Brazil
- Centro Multiusuário para Análise de Fenômenos Biomédicos, Universidade do Estado do Amazonas, Amazonas69065-001, Brazil
| | - Kildare Miranda
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro21941-902, Brazil
- Centro Nacional de Biologia Estrutural e Bioimagem, Universidade Federal do Rio de Janeiro, Rio de Janeiro21941-902, Brazil
- Instituto Nacional de Ciência e Tecnologia em Biologia Estrutural e Bioimagem - Universidade Federal do Rio de Janeiro, Rio de Janeiro21941-902, Brazil
- Centro Multiusuário para Análise de Fenômenos Biomédicos, Universidade do Estado do Amazonas, Amazonas69065-001, Brazil
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27
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Lima-Filho R, Fortuna JS, Cozachenco D, Isaac AR, Lyra e Silva N, Saldanha A, Santos LE, Ferreira ST, Lourenco MV, De Felice FG. Brain FNDC5/Irisin Expression in Patients and Mouse Models of Major Depression. eNeuro 2023; 10:ENEURO.0256-22.2023. [PMID: 36697257 PMCID: PMC9927507 DOI: 10.1523/eneuro.0256-22.2023] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 01/16/2023] [Accepted: 01/19/2023] [Indexed: 01/27/2023] Open
Abstract
Major depressive disorder (MDD) is a major cause of disability in adults. MDD is both a comorbidity and a risk factor for Alzheimer's disease (AD), and regular physical exercise has been associated with reduced incidence and severity of MDD and AD. Irisin is an exercise-induced myokine derived from proteolytic processing of fibronectin type III domain-containing protein 5 (FNDC5). FNDC5/irisin is reduced in the brains of AD patients and mouse models. However, whether brain FNDC5/irisin expression is altered in depression remains elusive. Here, we investigate changes in fndc5 expression in postmortem brain tissue from MDD individuals and mouse models of depression. We found decreased fndc5 expression in the MDD prefrontal cortex, both with and without psychotic traits. We further demonstrate that the induction of depressive-like behavior in male mice by lipopolysaccharide decreased fndc5 expression in the frontal cortex, but not in the hippocampus. Conversely, chronic corticosterone administration increased fndc5 expression in the frontal cortex, but not in the hippocampus. Social isolation in mice did not result in altered fndc5 expression in either frontal cortex or hippocampus. Finally, fluoxetine, but not other antidepressants, increased fndc5 gene expression in the mouse frontal cortex. Results indicate a region-specific modulation of fndc5 in depressive-like behavior and by antidepressant in mice. Our finding of decreased prefrontal cortex fndc5 expression in MDD individuals differs from results in mice, highlighting the importance of carefully interpreting observations in mice. The reduction in fndc5 mRNA suggests that decreased central FNDC5/irisin could comprise a shared pathologic mechanism between MDD and AD.
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Affiliation(s)
- Ricardo Lima-Filho
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, 21941-902, Rio de Janeiro RJ, Brazil
| | - Juliana S. Fortuna
- Institute of Biomedical Sciences, Federal University of Rio de Janeiro, 21941-902, Rio de Janeiro RJ, Brazil
| | - Danielle Cozachenco
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, 21941-902, Rio de Janeiro RJ, Brazil
| | - Alinny R. Isaac
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, 21941-902, Rio de Janeiro RJ, Brazil
| | - Natalia Lyra e Silva
- Centre for Neurosciences Studies, Departments of Biomedical and Molecular Sciences, and Psychiatry, Queen’s University, Kingston, Ontario K7L 3N6, Canada
| | - Alice Saldanha
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, 21941-902, Rio de Janeiro RJ, Brazil
| | - Luis E. Santos
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, 21941-902, Rio de Janeiro RJ, Brazil
| | - Sergio T. Ferreira
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, 21941-902, Rio de Janeiro RJ, Brazil
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, 21941-902, Rio de Janeiro RJ, Brazil
- D’Or Institute for Research and Education, Rio de Janeiro RJ, 22281-100, Brazil
| | - Mychael V. Lourenco
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, 21941-902, Rio de Janeiro RJ, Brazil
| | - Fernanda G. De Felice
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, 21941-902, Rio de Janeiro RJ, Brazil
- Centre for Neurosciences Studies, Departments of Biomedical and Molecular Sciences, and Psychiatry, Queen’s University, Kingston, Ontario K7L 3N6, Canada
- D’Or Institute for Research and Education, Rio de Janeiro RJ, 22281-100, Brazil
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28
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da Silva Lima LR, Barros Santos MC, dos Santos D′Almeida CT, Cameron LC, Gutkoski LC, Ferreira MSL. Omics data reveals the phenolic fingerprint of Brazilian whole wheat flours of different technological qualities. J Food Sci Technol 2023; 60:783-796. [PMID: 36712211 PMCID: PMC9873850 DOI: 10.1007/s13197-023-05665-8] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 11/19/2022] [Accepted: 01/02/2023] [Indexed: 01/15/2023]
Abstract
Common wheat (Triticum aestivum) is one of the most consumed staple foods used for bakery products. Outer layers of grain present a great diversity of bioactive compounds, especially phenolic compounds (PC). Free and bound PC were extracted from eight genotypes of whole wheat flours (WWF) presenting different technological classifications. These extracts were comprehensively characterized through untargeted metabolomics applying ultra-high-performance liquid chromatography-mass spectrometry (UHPLC-MSE) and spectrophotometric analyses. Chemical composition and colorimetry were also determined by classical analyses. Thirty-eight PC were tentatively identified by UHPLC-MSE belonging to three classes (phenolic acids, flavonoids, and other polyphenols), some of them identified in all WWF samples. Bound hydroxycinnamic acids were the main PC found in WWF, especially the trans-ferulic acid and its isomer. No difference was found in starch and protein contents, whereas low-quality flours showed a higher ash content than the superior and medium-quality flours. Total phenolic content (TPC) ranged between 124.5 and 171.4 mg GAE/100 g WWF, which bound PC were responsible for 60% of TPC. Omics data and multivariate statistical analyses were successfully applied to discern the phenolic profile of WWF from different genotypes and technological qualities. Supplementary Information The online version contains supplementary material available at 10.1007/s13197-023-05665-8.
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Affiliation(s)
- Luciana Ribeiro da Silva Lima
- Laboratory of Bioactives, Food and Nutrition Graduate Program (PPGAN), Federal University of the State of Rio de Janeiro, UNIRIO, 22290-240 Rio de Janeiro, Brazil
- Center of Innovation in Mass Spectrometry, Laboratory of Protein Biochemistry, UNIRIO, 22290-240 Rio de Janeiro, Brazil
| | - Millena Cristina Barros Santos
- Laboratory of Bioactives, Food and Nutrition Graduate Program (PPGAN), Federal University of the State of Rio de Janeiro, UNIRIO, 22290-240 Rio de Janeiro, Brazil
- Center of Innovation in Mass Spectrometry, Laboratory of Protein Biochemistry, UNIRIO, 22290-240 Rio de Janeiro, Brazil
| | - Carolina Thomaz dos Santos D′Almeida
- Laboratory of Bioactives, Food and Nutrition Graduate Program (PPGAN), Federal University of the State of Rio de Janeiro, UNIRIO, 22290-240 Rio de Janeiro, Brazil
- Center of Innovation in Mass Spectrometry, Laboratory of Protein Biochemistry, UNIRIO, 22290-240 Rio de Janeiro, Brazil
| | - Luiz Claudio Cameron
- Center of Innovation in Mass Spectrometry, Laboratory of Protein Biochemistry, UNIRIO, 22290-240 Rio de Janeiro, Brazil
| | - Luiz Carlos Gutkoski
- Laboratory of Bioactives, Food and Nutrition Graduate Program (PPGAN), Federal University of the State of Rio de Janeiro, UNIRIO, 22290-240 Rio de Janeiro, Brazil
| | - Mariana Simões Larraz Ferreira
- Laboratory of Bioactives, Food and Nutrition Graduate Program (PPGAN), Federal University of the State of Rio de Janeiro, UNIRIO, 22290-240 Rio de Janeiro, Brazil
- Center of Innovation in Mass Spectrometry, Laboratory of Protein Biochemistry, UNIRIO, 22290-240 Rio de Janeiro, Brazil
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Men Y, Yang ZW, Luo JY, Chen PP, Moreira FFF, Liu ZH, Yin JD, Xie BJ, Wang YH, Xie Q. Symbiotic Microorganisms and Their Different Association Types in Aquatic and Semiaquatic Bugs. Microbiol Spectr 2022; 10:e0279422. [PMID: 36409137 PMCID: PMC9769989 DOI: 10.1128/spectrum.02794-22] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 11/03/2022] [Indexed: 11/23/2022] Open
Abstract
True bugs (Hemiptera, suborder Heteroptera) constitute the largest suborder of nonholometabolous insects and occupy a wide range of habitats various from terrestrial to semiaquatic to aquatic niches. The transition and occupation of these diverse habitats impose various challenges to true bugs, including access to oxygen for the aquatic species and plant defense for the terrestrial phytophagans. Although numerous studies have demonstrated that microorganisms can provide multiple benefits to terrestrial host insects, a systematic study with comprehensive higher taxa sampling that represents aquatic and semiaquatic habitats is still lacking. To explore the role of symbiotic microorganisms in true bug adaptations, 204 samples belonging to all seven infraorders of Heteroptera were investigated, representing approximately 85% of its superfamilies and almost all known habitats. The symbiotic microbial communities of these insects were analyzed based on the full-length amplicons of the bacterial 16S rRNA gene and fungal ITS region. Bacterial communities varied among hosts inhabiting terrestrial, semiaquatic, and aquatic habitats, while fungal communities were more related to the geographical distribution of the hosts. Interestingly, co-occurrence networks showed that species inhabiting similar habitats shared symbiotic microorganism association types. Moreover, functional prediction analyses showed that the symbiotic bacterial community of aquatic species displayed richer amino acid and lipid metabolism pathways, while plant-feeding true bugs benefited more from the symbiont-provided xenobiotics biodegradation pathway. These results deepened the recognition that symbiotic microorganisms were likely to help heteropterans occupy diverse ecological habitats and provided a reference framework for further studies on how microorganisms affect host insects living in various habitats. IMPORTANCE Symbiotic bacteria and fungi generally colonize insects and provide various benefits for hosts. Although numerous studies have investigated symbionts in terrestrial plant-feeding insects, explorations of symbiotic bacterial and fungal communities in aquatic and semiaquatic insects are rare. In this study, the symbiotic microorganisms of 204 aquatic, semiaquatic, and terrestrial true bugs were explored. This comprehensive taxon sampling covers ~85% of the superfamilies of true bugs and most insect habitats. Analyses of the diversity of symbionts demonstrated that the symbiotic microbial diversities of true bugs were mainly affected by host habitats. Co-occurrence networks showed that true bugs inhabiting similar habitats shared symbiotic microbial association types. These correlations between symbionts and hosts together with the functions of bacterial communities indicated that symbiotic microbial communities may help true bugs adapt to (semi)aquatic habitats.
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Affiliation(s)
- Yu Men
- School of Life Sciences, State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Zi-wen Yang
- School of Life Sciences, State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Jiu-yang Luo
- School of Life Sciences, State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Ping-ping Chen
- Netherlands Centre of Biodiversity Naturalis, Leiden, Netherlands
| | | | - Zhi-hui Liu
- School of Life Sciences, State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Jia-dong Yin
- School of Life Sciences, State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Bao-jun Xie
- School of Life Sciences, State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yan-hui Wang
- School of Life Sciences, State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Qiang Xie
- School of Life Sciences, State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, Guangdong, China
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Fritsch H, Giovanetti M, Xavier J, Adelino TER, Fonseca V, de Jesus JG, de Jesus R, Freitas C, Peterka CRL, Campelo de Albuquerque CF, Bispo de Filippis AM, da Cunha RV, Silva EC, Alcantara LCJ, Iani FCDM. Retrospective Genomic Surveillance of Chikungunya Transmission in Minas Gerais State, Southeast Brazil. Microbiol Spectr 2022; 10:e0128522. [PMID: 36005767 PMCID: PMC9602355 DOI: 10.1128/spectrum.01285-22] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 07/13/2022] [Indexed: 12/30/2022] Open
Abstract
Brazil accounted for a total number of 1,276,194 reported cases of chikungunya fever between 2014 and 2022. Additionally, since 2015, the country has experienced an increasing death toll, in which the Northeast and Southeast regions appear to report the worst scenarios. Although the CHIKV transmission dynamics have been studied in many parts of the country since its introduction in 2014, little is still known about chikungunya virus (CHIKV) transmission and genetic diversity in the state of Minas Gerais, located in southeast Brazil. Moreover, no studies have been published characterizing CHIKV genomic surveillance in this state. Thus, to retrospectively explore the CHIKV epidemic in Minas Gerais, we generated 40 genomes from clinical samples using Nanopore sequencing. Phylogenetic analysis indicated that multiple introductions of CHIKV occurred, likely from the northeastern Brazilian states, with the most recent common ancestral strain dating to early March 2016, which is in agreement with local epidemiological reports. Additionally, epidemiological data reveals a decline in the number of reported cases from 2017 to 2021, indicating that population immunity or changes in vector activity may have contributed to the decreasing waves of CHIKV infection. Together, our results shed light on the dispersion dynamics of CHIKV and show that infections decreased from March 2017 to January 2021 despite multiple introductions into Minas Gerais State. In conclusion, our study highlights the importance of combining genomic and epidemiological data in order to assist public health laboratories in monitoring and understanding the patterns and diversity of mosquito-borne viral epidemics. IMPORTANCE Arbovirus infections in Brazil, including chikungunya, dengue, yellow fever, and Zika, result in considerable morbidity and mortality and are pressing public health concerns. However, our understanding of these outbreaks is hampered by the limited availability of genomic data. In this study, we combine epidemiological analysis and portable genome sequencing to retrospectively describe the CHIKV epidemic in Minas Gerais between 2017 and 2021. Our results indicate that the East/Central/South African (ECSA) CHIKV lineage was introduced into Minas Gerais by three distinct events, likely from the North and Northeast regions of Brazil. Our study provides an understanding of how CHIKV initiates transmission in the region and illustrates that genomics in the field can augment traditional approaches to infectious disease surveillance and control.
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Affiliation(s)
- Hegger Fritsch
- Laboratorio de Flavivírus, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
- Laboratório Central de Saúde Pública do Estado de Minas Gerais, Fundação Ezequiel Dias, Belo Horizonte, Minas Gerais, Brazil
| | - Marta Giovanetti
- Laboratorio de Flavivírus, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
- Department of Science and Technology for Humans and the Environment, Campus Bio-Medico University of Rome, Rome, Italy
| | - Joilson Xavier
- Laboratorio de Flavivírus, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Talita Emile Ribeiro Adelino
- Laboratório Central de Saúde Pública do Estado de Minas Gerais, Fundação Ezequiel Dias, Belo Horizonte, Minas Gerais, Brazil
| | - Vagner Fonseca
- Organização Pan-Americana da Saúde, Organização Mundial da Saúde, Brasília, Distrito Federal, Brazil
| | - Jaqueline Góes de Jesus
- Laboratório de Patologia Experimental, Instituto Gonçalo Moniz, Fundacão Oswaldo Cruz, Salvador, Brazil
| | - Ronaldo de Jesus
- Coordenação Geral dos Laboratórios de Saúde Pública, Secretaria de Vigilância em Saúde, Ministério da Saúde, Brasília, Distrito Federal, Brazil
| | - Carla Freitas
- Coordenação Geral dos Laboratórios de Saúde Pública, Secretaria de Vigilância em Saúde, Ministério da Saúde, Brasília, Distrito Federal, Brazil
| | - Cassio Roberto Leonel Peterka
- Coordenação Geral das Arboviroses, Secretaria de Vigilância em Saúde, Ministério da Saúde (CGARB/SVS-MS), Brasília, Distrito Federal, Brazil
| | | | | | | | - Erniria Carvalhais Silva
- Coordenadoria Estadual de Vigilância das Arboviroses, Secretaria de Estado de Saúde de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - Felipe Campos de Melo Iani
- Laboratório Central de Saúde Pública do Estado de Minas Gerais, Fundação Ezequiel Dias, Belo Horizonte, Minas Gerais, Brazil
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Forrester S, Goundry A, Dias BT, Leal-Calvo T, Moraes MO, Kaye PM, Mottram JC, Lima APCA. Tissue Specific Dual RNA-Seq Defines Host-Parasite Interplay in Murine Visceral Leishmaniasis Caused by Leishmania donovani and Leishmania infantum. Microbiol Spectr 2022; 10:e0067922. [PMID: 35384718 PMCID: PMC9045295 DOI: 10.1128/spectrum.00679-22] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 03/10/2022] [Indexed: 01/22/2023] Open
Abstract
Visceral leishmaniasis is associated with hepato-splenomegaly and altered immune and hematological parameters in both preclinical animal models and humans. We studied mouse experimental visceral leishmaniasis caused by Leishmania infantum and Leishmania donovani in BALB/c mice using dual RNA-seq to investigate the transcriptional response of host and parasite in liver and spleen. We identified only 4 species-specific parasite expressed genes (SSPEGs; log2FC >1, FDR <0.05) in the infected spleen, and none in the infected liver. For the host transcriptome, we found 789 differentially expressed genes (DEGs; log2FC >1, FDR <0.05) in the spleen that were common to both infections, with IFNγ signaling and complement and coagulation cascade pathways highly enriched, and an additional 286 and 186 DEGs that were selective to L. donovani and L. infantum infection, respectively. Among those, there were network interactions between genes of amino acid metabolism and PPAR signaling in L. donovani infection and increased IL1β and positive regulation of fatty acid transport in L. infantum infection, although no pathway enrichment was observed. In the liver, there were 1,939 DEGs in mice infected with either L. infantum or L. donovani in comparison to uninfected mice, and the most enriched pathways were IFNγ signaling, neutrophil mediated immunity, complement and coagulation, cytokine-chemokine responses, and hemostasis. Additionally, 221 DEGs were selective in L. donovani and 429 DEGs in L. infantum infections. These data show that the host response for these two visceral leishmaniasis infection models is broadly similar, and ∼10% of host DEGs vary in infections with either parasite species. IMPORTANCE Visceral leishmaniasis (VL) is caused by two species of Leishmania parasites, L. donovani in the Old World and L. infantum in the New World and countries bordering the Mediterranean. Although cardinal features such as hepato-splenomegaly and alterations in blood and immune function are evident, clinical presentation may vary by geography, with for example severe bleeding often associated with VL in Brazil. Although animal models of both L. donovani and L. infantum have been widely used to study disease pathogenesis, a direct side-by-side comparison of how these parasites species impact the infected host and/or how they might respond to the stresses of mammalian infection has not been previously reported. Identifying common and distinct pathways to pathogenesis will be important to ensure that new therapeutic or prophylactic approaches will be applicable across all forms of VL.
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Affiliation(s)
- Sarah Forrester
- York Biomedical Research Institute, Department of Biology, University of York, York, England, United Kingdom
| | - Amy Goundry
- York Biomedical Research Institute, Department of Biology, University of York, York, England, United Kingdom
- Instituto de Biofisica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Bruna Torres Dias
- Instituto de Biofisica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | - Paul M. Kaye
- York Biomedical Research Institute, Hull York Medical School, University of York, York, England, United Kingdom
| | - Jeremy C. Mottram
- York Biomedical Research Institute, Department of Biology, University of York, York, England, United Kingdom
| | - Ana Paula C. A. Lima
- Instituto de Biofisica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Naveca FG, Nascimento V, Souza V, Corado ADL, Nascimento F, Silva G, Mejía MC, Brandão MJ, Costa Á, Duarte D, Pessoa K, Jesus M, Gonçalves L, Fernandes C, Mattos T, Abdalla L, Santos JH, Martins A, Chui FM, Val FF, de Melo GC, Xavier MS, Sampaio VDS, Mourão MP, Lacerda MV, Batista ÉLR, Magalhães ALÁ, Dábilla N, Pereira LCG, Vinhal F, Miyajima F, Dias FBS, dos Santos ER, Coêlho D, Ferraz M, Lins R, Wallau GL, Delatorre E, Gräf T, Siqueira MM, Resende PC, Bello G. Spread of Gamma (P.1) Sub-Lineages Carrying Spike Mutations Close to the Furin Cleavage Site and Deletions in the N-Terminal Domain Drives Ongoing Transmission of SARS-CoV-2 in Amazonas, Brazil. Microbiol Spectr 2022; 10:e0236621. [PMID: 35196783 PMCID: PMC8865440 DOI: 10.1128/spectrum.02366-21] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 01/24/2022] [Indexed: 12/29/2022] Open
Abstract
The Amazonas was one of the most heavily affected Brazilian states by the COVID-19 epidemic. Despite a large number of infected people, particularly during the second wave associated with the spread of the Variant of Concern (VOC) Gamma (lineage P.1), SARS-CoV-2 continues to circulate in the Amazonas. To understand how SARS-CoV-2 persisted in a human population with a high immunity barrier, we generated 1,188 SARS-CoV-2 whole-genome sequences from individuals diagnosed in the Amazonas state from 1st January to 6th July 2021, of which 38 were vaccine breakthrough infections. Our study reveals a sharp increase in the relative prevalence of Gamma plus (P.1+) variants, designated Pango Lineages P.1.3 to P.1.6, harboring two types of additional Spike changes: deletions in the N-terminal (NTD) domain (particularly Δ144 or Δ141-144) associated with resistance to anti-NTD neutralizing antibodies or mutations at the S1/S2 junction (N679K or P681H) that probably enhance the binding affinity to the furin cleavage site, as suggested by our molecular dynamics simulations. As lineages P.1.4 (S:N679K) and P.1.6 (S:P681H) expanded (Re > 1) from March to July 2021, the lineage P.1 declined (Re < 1) and the median Ct value of SARS-CoV-2 positive cases in Amazonas significantly decreases. Still, we did not find an increased incidence of P.1+ variants among breakthrough cases of fully vaccinated patients (71%) in comparison to unvaccinated individuals (93%). This evidence supports that the ongoing endemic transmission of SARS-CoV-2 in the Amazonas is driven by the spread of new local Gamma/P.1 sublineages that are more transmissible, although not more efficient to evade vaccine-elicited immunity than the parental VOC. Finally, as SARS-CoV-2 continues to spread in human populations with a declining density of susceptible hosts, the risk of selecting more infectious variants or antibody evasion mutations is expected to increase. IMPORTANCE The continuous evolution of SARS-CoV-2 is an expected phenomenon that will continue to happen due to the high number of cases worldwide. The present study analyzed how a Variant of Concern (VOC) could still circulate in a population hardly affected by two COVID-19 waves and with vaccination in progress. Our results showed that the answer behind that was a new generation of Gamma-like viruses, which emerged locally carrying mutations that made it more transmissible and more capable of spreading, partially evading prior immunity triggered by natural infections or vaccines. With thousands of new cases daily, the current pandemics scenario suggests that SARS-CoV-2 will continue to evolve and efforts to reduce the number of infected subjects, including global equitable access to COVID-19 vaccines, are mandatory. Thus, until the end of pandemics, the SARS-CoV-2 genomic surveillance will be an essential tool to better understand the drivers of the viral evolutionary process.
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Affiliation(s)
- Felipe Gomes Naveca
- Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane, Fiocruz, Manaus, Amazonas, Brazil
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Valdinete Nascimento
- Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane, Fiocruz, Manaus, Amazonas, Brazil
| | - Victor Souza
- Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane, Fiocruz, Manaus, Amazonas, Brazil
| | - André de Lima Corado
- Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane, Fiocruz, Manaus, Amazonas, Brazil
| | - Fernanda Nascimento
- Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane, Fiocruz, Manaus, Amazonas, Brazil
| | - George Silva
- Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane, Fiocruz, Manaus, Amazonas, Brazil
- Fundação Centro de Controle de Oncologia do Estado do Amazonas, Manaus, Amazonas, Brazil
| | - Matilde Contreras Mejía
- Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane, Fiocruz, Manaus, Amazonas, Brazil
| | - Maria Júlia Brandão
- Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane, Fiocruz, Manaus, Amazonas, Brazil
| | - Ágatha Costa
- Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane, Fiocruz, Manaus, Amazonas, Brazil
| | - Débora Duarte
- Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane, Fiocruz, Manaus, Amazonas, Brazil
| | - Karina Pessoa
- Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane, Fiocruz, Manaus, Amazonas, Brazil
| | - Michele Jesus
- Laboratório de Diversidade Microbiana da Amazônia com Importância para a Saúde, Instituto Leônidas e Maria Deane, Fiocruz, Manaus, Amazonas, Brazil
| | - Luciana Gonçalves
- Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane, Fiocruz, Manaus, Amazonas, Brazil
- Fundação de Vigilância em Saúde do Amazonas - Dra. Rosemary Costa Pinto, Manaus, Amazonas, Brazil
| | - Cristiano Fernandes
- Fundação de Vigilância em Saúde do Amazonas - Dra. Rosemary Costa Pinto, Manaus, Amazonas, Brazil
| | - Tirza Mattos
- Laboratório Central de Saúde Pública do Amazonas, Manaus, Amazonas, Brazil
| | - Ligia Abdalla
- Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
| | | | - Alex Martins
- Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
| | | | - Fernando Fonseca Val
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - Gisely Cardoso de Melo
- Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - Mariana Simão Xavier
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Amazonas, Brazil
- Instituto Nacional de Infectologia Evandro Chagas, Fiocruz, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Vanderson de Souza Sampaio
- Fundação de Vigilância em Saúde do Amazonas - Dra. Rosemary Costa Pinto, Manaus, Amazonas, Brazil
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - Maria Paula Mourão
- Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - Marcus Vinícius Lacerda
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Amazonas, Brazil
- Laboratório de Diagnóstico e Controle e Doenças Infecciosas da Amazônia, Instituto Leônidas e Maria Deane, Fiocruz, Manaus, Amazonas, Brazil
| | | | | | - Nathânia Dábilla
- Laboratório de Virologia e Cultivo Celular, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | | | - Fernando Vinhal
- HLAGYN-Laboratório de Imunologia de Transplantes de Goiás, Aparecida de Goiânia, Goiás, Brazil
| | - Fabio Miyajima
- Laboratório Analitico de Competências Moleculares e Epidemiológicas, Fundação Oswaldo Cruz Ceará, Fiocruz, Eusébio, Ceará, Brazil
| | - Fernando Braga Stehling Dias
- Laboratório Analitico de Competências Moleculares e Epidemiológicas, Fundação Oswaldo Cruz Ceará, Fiocruz, Eusébio, Ceará, Brazil
| | - Eduardo Ruback dos Santos
- Unidade de Apoio Diagnóstico à COVID-19, Fundação Oswaldo Cruz Ceará, Fiocruz, Eusébio, Ceará, Brazil
| | - Danilo Coêlho
- Departamento de Virologia, Instituto Aggeu Magalhães, Fiocruz, Recife, Pernambuco, Brazil
| | - Matheus Ferraz
- Departamento de Virologia, Instituto Aggeu Magalhães, Fiocruz, Recife, Pernambuco, Brazil
| | - Roberto Lins
- Departamento de Virologia, Instituto Aggeu Magalhães, Fiocruz, Recife, Pernambuco, Brazil
| | - Gabriel Luz Wallau
- Departamento de Entomologia e Núcleo de Bioinformática, Instituto Aggeu Magalhães, Fiocruz, Recife, Pernambuco, Brazil
| | - Edson Delatorre
- Departamento de Biologia, Centro de Ciências Exatas, Naturais e da Saúde, Universidade Federal do Espírito Santo, Alegre, Espírito Santo, Brazil
| | - Tiago Gräf
- Instituto Gonçalo Moniz, Fiocruz, Salvador, Bahia, Brazil
| | - Marilda Mendonça Siqueira
- Laboratório de Vírus Respiratórios e do Sarampo (LVRS), Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Paola Cristina Resende
- Laboratório de Vírus Respiratórios e do Sarampo (LVRS), Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Gonzalo Bello
- Laboratório de AIDS e Imunologia Molecular, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Rio de Janeiro, Brazil
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Corrêa LA, Bittencourt JV, Mainenti Pagnez MA, Mathieson S, Saragiotto BT, Telles GF, Meziat-Filho N, Calazans Nogueira LA. Neural management plus advice to stay active on clinical measures and sciatic neurodynamic for patients with chronic sciatica: Study protocol for a controlled randomised clinical trial. PLoS One 2022; 17:e0263152. [PMID: 35120149 PMCID: PMC8815873 DOI: 10.1371/journal.pone.0263152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 11/28/2021] [Indexed: 12/04/2022] Open
Abstract
Advice to stay active is the primary management strategy for sciatica. Other conservative treatments such as neural management techniques may also contribute to sciatica recovery, but currently, the effects have not been robustly assessed. Thus, the aim of this study is to compare the effects of adding neural management to advice to stay active versus advice to stay active alone in improving pain intensity and functional limitation. Secondarily, to compare the effects of the experimental intervention in the sciatic neurodynamic, pain modulation, and psychosocial factors. A parallel-group, controlled, examiner-blinded superiority clinical trial randomised at a 1:1 allocation will be conducted in 210 participants with chronic sciatica. Patients will be recruited from outpatient physiotherapy clinics and community advertisements. The experimental group will receive neural mobilisation techniques and soft tissue mobilisation techniques for 30 minutes per session, 10 weekly sessions, plus advice to stay active on their activities of daily living, information on physical activity, imaging tests, and sciatica for 5 biweekly sessions lasting 25-30 minutes. The control group will receive advice to stay active only. The re-evaluation will be performed out after 5 weeks, 10 weeks, and 26 weeks after randomisation and primary endpoints will be pain intensity and functional limitation at 10 weeks. Secondary outcomes will include neuropathic symptoms, sciatic neurodynamic, pain modulation, and psychosocial factors. Adverse events and patient satisfaction will be assessed. Ethical approval has been granted from an Institutional Human Research Ethics Committee. Trial registration: Trial was prospectively registered in the Brazilian Registry of Clinical Trials (number: RBR-3db643c).
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Affiliation(s)
- Leticia Amaral Corrêa
- Rehabilitation Science Postgraduation Program, Augusto Motta University Centre (UNISUAM), Rio de Janeiro, Brazil
| | - Juliana Valentim Bittencourt
- Rehabilitation Science Postgraduation Program, Augusto Motta University Centre (UNISUAM), Rio de Janeiro, Brazil
| | - Maria Alice Mainenti Pagnez
- Rehabilitation Science Postgraduation Program, Augusto Motta University Centre (UNISUAM), Rio de Janeiro, Brazil
| | - Stephanie Mathieson
- Institute for Musculoskeletal Health, Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | | | - Gustavo Felicio Telles
- Rehabilitation Science Postgraduation Program, Augusto Motta University Centre (UNISUAM), Rio de Janeiro, Brazil
| | - Ney Meziat-Filho
- Rehabilitation Science Postgraduation Program, Augusto Motta University Centre (UNISUAM), Rio de Janeiro, Brazil
| | - Leandro Alberto Calazans Nogueira
- Rehabilitation Science Postgraduation Program, Augusto Motta University Centre (UNISUAM), Rio de Janeiro, Brazil
- Physiotherapy Department, Federal Institute of Rio de Janeiro (IFRJ), Rio de Janeiro, Brazil
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Leitão IDC, Calil PT, Galliez RM, Moreira FRR, Mariani D, Castiñeiras ACP, da Silva GPD, Maia RA, Corrêa IA, Monteiro FLL, de Souza MRM, Gonçalves CCA, Higa LM, de Jesus Ribeiro L, Fonseca VWP, Bastos VC, Voloch CM, Faffe DS, da Costa Ferreira O, Tanuri A, Castiñeiras TMPP, da Costa LJ. Prolonged SARS-CoV-2 Positivity in Immunocompetent Patients: Virus Isolation, Genomic Integrity, and Transmission Risk. Microbiol Spectr 2021; 9:e0085521. [PMID: 34787498 PMCID: PMC8597635 DOI: 10.1128/spectrum.00855-21] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 10/21/2021] [Indexed: 12/23/2022] Open
Abstract
Current guidelines for patient isolation in COVID-19 cases recommend a symptom-based approach, averting the use of control real-time reverse transcription PCR (rRT-PCR) testing. However, we hypothesized that patients with persistently positive results by RT-PCR for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) could be potentially infectious for a prolonged time, even if immunocompetent and asymptomatic, which would demand a longer social isolation period than presently recommended. To test this hypothesis, 72 samples from 51 mildly symptomatic immunocompetent patients with long-lasting positive rRT-PCR results for SARS-CoV-2 were tested for their infectiousness in cell culture. The serological response of samples from those patients and virus genomic integrity were also analyzed. Infectious viruses were successfully isolated from 34.38% (22/64) of nasopharynx samples obtained 14 days or longer after symptom onset. Indeed, we observed successful virus isolation up to 128 days. Complete SARS-COV-2 genome integrity was demonstrated, suggesting the presence of replication-competent viruses. No correlation was found between the isolation of infectious viruses and rRT-PCR cycle threshold values or the humoral immune response. These findings call attention to the need to review current isolation guidelines, particularly in scenarios involving high-risk individuals. IMPORTANCE In this study, we evaluated mildly symptomatic immunocompetent patients with long-lasting positive rRT-PCR results for SARS-CoV-2. Infectious viruses were successfully isolated in cell cultures from nasopharynx samples obtained 14 days or longer after symptom onset. Indeed, we observed successful virus isolation for up to 128 days. Moreover, SARS-CoV-2 genome integrity was demonstrated by sequencing, suggesting the presence of replication-competent viruses. These data point out the risk of continuous SARS-CoV-2 transmission from patients with prolonged detection of SARS-CoV-2 in the upper respiratory tract, which has important implications for current precaution guidelines, particularly in settings where vulnerable individuals may be exposed (e.g., nursing homes and hospitals).
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Affiliation(s)
- Isabela de Carvalho Leitão
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Pedro Telles Calil
- Laboratório de Genética e Imunologia das Infecções Virais, Departamento de Virologia, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Rafael Mello Galliez
- Departamento de Doenças Infecciosas e Parasitárias, Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Filipe Romero Rebello Moreira
- Laboratório de Virologia Molecular, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Diana Mariani
- Laboratório de Virologia Molecular, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | | | - Gustavo Peixoto Duarte da Silva
- Laboratório de Genética e Imunologia das Infecções Virais, Departamento de Virologia, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Richard Araújo Maia
- Laboratório de Virologia Molecular, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Isadora Alonso Corrêa
- Laboratório de Genética e Imunologia das Infecções Virais, Departamento de Virologia, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Fábio Luís Lima Monteiro
- Laboratório de Genética e Imunologia das Infecções Virais, Departamento de Virologia, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Marcos Romário Matos de Souza
- Laboratório de Genética e Imunologia das Infecções Virais, Departamento de Virologia, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | | | - Luiza Mendonça Higa
- Laboratório de Virologia Molecular, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Liane de Jesus Ribeiro
- Laboratório de Virologia Molecular, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | | | - Victoria Cortes Bastos
- Departamento de Doenças Infecciosas e Parasitárias, Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Carolina Moreira Voloch
- Laboratório de Virologia Molecular, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Débora Souza Faffe
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Orlando da Costa Ferreira
- Laboratório de Virologia Molecular, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Amilcar Tanuri
- Laboratório de Virologia Molecular, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | | | - Luciana Jesus da Costa
- Laboratório de Genética e Imunologia das Infecções Virais, Departamento de Virologia, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
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Delgado K, Vieira C, Dammak I, Frasão B, Brígida A, Costa M, Conte-Junior C. Different Ultrasound Exposure Times Influence the Physicochemical and Microbial Quality Properties in Probiotic Goat Milk Yogurt. Molecules 2020; 25:E4638. [PMID: 33053748 PMCID: PMC7587201 DOI: 10.3390/molecules25204638] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 10/03/2020] [Accepted: 10/05/2020] [Indexed: 11/25/2022] Open
Abstract
Despite goat milk having health benefits over cow milk, goat milk yogurt (GY) presents low consistency and viscosity, which reduces its overall acceptability by the consumer. Thus, new innovative methods can be an alternative to improve the quality of GY. Hence, this study aimed to investigate the effect of ultrasound (US) treatment with different sonication times on quality parameters of probiotic GY during refrigerated storage. US treatment was conducted at 20 KHz for 3, 6, and 9 min in yogurt. Lactobacillus bulgaricus and Lactobacillus acidophilus LA-5 were sensitive to US treatment, presenting a decrease in the yogurts stocked. This loss of viability led to reduced post-acidification due to smaller lactose metabolization in yogurt samples submitted to the US. Among tested treatments, the application of 6 min enhanced the apparent viscosity and consistency index of GY yogurts. In addition, this time also reduced tyramine and total biogenic amine (BAs) content. These findings suggest that 6 min of sonication is a promising way to improve the rheological properties and reduce the acidity and BAs content in GY. Further studies should be performed to optimize the US setting conditions to preserve the probiotic culture viability in yogurts.
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Affiliation(s)
- Karina Delgado
- Department of Food Technology, Faculdade de Veterinária, Universidade Federal Fluminense, Niterói 24230-340, Brazil; (K.D.); (C.V.); (B.F.); (M.C.)
- Food Science Program, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-909, Brazil;
| | - Carla Vieira
- Department of Food Technology, Faculdade de Veterinária, Universidade Federal Fluminense, Niterói 24230-340, Brazil; (K.D.); (C.V.); (B.F.); (M.C.)
- Food Science Program, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-909, Brazil;
| | - Ilyes Dammak
- Food Science Program, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-909, Brazil;
| | - Beatriz Frasão
- Department of Food Technology, Faculdade de Veterinária, Universidade Federal Fluminense, Niterói 24230-340, Brazil; (K.D.); (C.V.); (B.F.); (M.C.)
| | - Ana Brígida
- Embrapa Agroindústria de Alimentos, Empresa Brasileira de Pesquisa Agropecuária, Rio de Janeiro 23020-470, Brazil;
- Embrapa Agroindústria Tropical, Empresa Brasileira de Pesquisa Agropecuária, Fortaleza 60511-110, Brazil
| | - Marion Costa
- Department of Food Technology, Faculdade de Veterinária, Universidade Federal Fluminense, Niterói 24230-340, Brazil; (K.D.); (C.V.); (B.F.); (M.C.)
- Laboratory of Inspection and Technology of Milk and Derivatives, Escola de Medicina Veterinária e Zootecnia, Universidade Federal da Bahia, Salvador 40170-110, Brazil
| | - Carlos Conte-Junior
- Department of Food Technology, Faculdade de Veterinária, Universidade Federal Fluminense, Niterói 24230-340, Brazil; (K.D.); (C.V.); (B.F.); (M.C.)
- Food Science Program, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-909, Brazil;
- National Institute of Health Quality Control, Fundação Oswaldo Cruz, Rio de Janeiro 21040-900, Brazil
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de Araújo JS, França da Silva C, Batista DDGJ, Nefertiti A, Fiuza LFDA, Fonseca-Berzal CR, Bernardino da Silva P, Batista MM, Sijm M, Kalejaiye TD, de Koning HP, Maes L, Sterk GJ, Leurs R, Soeiro MDNC. Efficacy of Novel Pyrazolone Phosphodiesterase Inhibitors in Experimental Mouse Models of Trypanosoma cruzi. Antimicrob Agents Chemother 2020; 64:e00414-20. [PMID: 32601163 PMCID: PMC7449165 DOI: 10.1128/aac.00414-20] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 06/20/2020] [Indexed: 11/20/2022] Open
Abstract
Pyrazolones are heterocyclic compounds with interesting biological properties. Some derivatives inhibit phosphodiesterases (PDEs) and thereby increase the cellular concentration of cyclic AMP (cAMP), which plays a vital role in the control of metabolism in eukaryotic cells, including the protozoan Trypanosoma cruzi, the etiological agent of Chagas disease (CD), a major neglected tropical disease. In vitro phenotypic screening identified a 4-bromophenyl-dihydropyrazole dimer as an anti-T. cruzi hit and 17 novel pyrazolone analogues with variations on the phenyl ring were investigated in a panel of phenotypic laboratory models. Potent activity against the intracellular forms (Tulahuen and Y strains) was obtained with 50% effective concentration (EC50) values within the 0.17 to 3.3 μM range. Although most were not active against bloodstream trypomastigotes, an altered morphology and loss of infectivity were observed. Pretreatment of the mammalian host cells with pyrazolones did not interfere with infection and proliferation, showing that the drug activity was not the result of changes to host cell metabolism. The pyrazolone NPD-227 increased the intracellular cAMP levels and was able to sterilize T. cruzi-infected cell cultures. Thus, due to its high potency and selectivity in vitro, and its additive interaction with benznidazole (Bz), NPD-227 was next assessed in the acute mouse model. Oral dosing for 5 days of NPD-227 at 10 mg/kg + Bz at 10 mg/kg not only reduced parasitemia (>87%) but also protected against mortality (>83% survival), hence demonstrating superiority to the monotherapy schemes. These data support these pyrazolone molecules as potential novel therapeutic alternatives for Chagas disease.
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Affiliation(s)
- Julianna Siciliano de Araújo
- Laboratório de Biologia Celular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Cristiane França da Silva
- Laboratório de Biologia Celular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Denise da Gama Jaén Batista
- Laboratório de Biologia Celular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Aline Nefertiti
- Laboratório de Biologia Celular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Cristina Rosa Fonseca-Berzal
- Laboratório de Biologia Celular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brazil
- Departamento de Parasitología, Facultad de Farmacia, Universidad Complutense de Madrid, Madrid, Spain
| | - Patrícia Bernardino da Silva
- Laboratório de Biologia Celular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marcos Meuser Batista
- Laboratório de Biologia Celular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Maarten Sijm
- Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute for Molecules, Medicines and Systems, VU University Amsterdam, Amsterdam, The Netherlands
| | - Titilola D Kalejaiye
- Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Harry P de Koning
- Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Louis Maes
- Laboratory for Microbiology, Parasitology and Hygiene, University of Antwerp, Antwerp, Belgium
| | - Geert Jan Sterk
- Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute for Molecules, Medicines and Systems, VU University Amsterdam, Amsterdam, The Netherlands
| | - Rob Leurs
- Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute for Molecules, Medicines and Systems, VU University Amsterdam, Amsterdam, The Netherlands
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da Costa TM, Cuba GT, Morgado PGM, Nicolau DP, Nouér SA, dos Santos KRN, Kiffer CRV. Pharmacodynamic comparison of different antimicrobial regimens against Staphylococcus aureus bloodstream infections with elevated vancomycin minimum inhibitory concentration. BMC Infect Dis 2020; 20:74. [PMID: 31973753 PMCID: PMC6979379 DOI: 10.1186/s12879-020-4782-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 01/09/2020] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Staphylococcus aureus is one of the major causes of bloodstream infections (BSI) worldwide, representing a major challenge for public health due to its resistance profile. Higher vancomycin minimum inhibitory concentrations (MIC) in S. aureus are associated with treatment failure and defining optimal empiric options for BSIs in settings where these isolates are prevalent is rather challenging. In silico pharmacodynamic models based on stochastic simulations (Monte Carlo) are important tools to estimate best antimicrobial regimens in different scenarios. We aimed to compare the pharmacodynamic profiles of different antimicrobials regimens for the treatment of S. aureus BSI in an environment with high vancomycin MIC. METHODS Steady-state drug area under the curve ratio to MIC (AUC/MIC) or the percent time above MIC (fT > MIC) were modeled using a 5000-patient Monte Carlo simulation to achieve pharmacodynamic exposures against 110 consecutive S. aureus isolates associated with BSI. RESULTS Cumulative fractions of response (CFRs) against all S. aureus isolates were 98% for ceftaroline; 79% and 92% for daptomycin 6 mg/kg q24h and for the high dose of 10 mg/kg q24h, respectively; 77% for linezolid 600 mg q12h when MIC was read according to CLSI M100-S26 instructions, and 64% when MIC was considered at the total growth inhibition; 65% and 86% for teicoplanin, three loading doses of 400 mg q12 h followed by 400 mg q24 h and for teicoplanin 400 mg q12 h, respectively; 61% and 76% for vancomycin 1000 mg q12 h and q8 h, respectively. CONCLUSIONS Based on this model, ceftaroline and high-dose daptomycin regimens delivered best pharmacodynamic exposures against S. aureus BSIs. Teicoplanin higher dose regimen achieved the best CFR (86%) among glycopeptides, although optimal threshold was not achieved, and vancomycin performance was critically affected by the S. aureus vancomycin MIC ≥2 mg/L. Linezolid effectiveness (CFR of 73%) is also affected by high prevalence of isolates with linezolid MIC ≥2 mg/L. These data show the need to continually evaluate the pharmacodynamic profiles of antimicrobials for empiric treatment of these infections.
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Affiliation(s)
- Thaina Miranda da Costa
- Laboratório de Infecção Hospitalar, Departamento de Microbiologia Médica, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373 - bloco I, Sala I2-010, Cidade Universitária Rio de Janeiro, Rio de Janeiro, Brazil
| | - Gabriel Trova Cuba
- Laboratório Especial de Microbiologia Clínica, Disciplina de Infectologia, Escola Paulista de Medicina, Universidade Federal de São Paulo (UNIFESP), Rua Leandro Dupret, São Paulo, SP 188 Brazil
| | - Priscylla Guimarães Migueres Morgado
- Laboratório de Infecção Hospitalar, Departamento de Microbiologia Médica, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373 - bloco I, Sala I2-010, Cidade Universitária Rio de Janeiro, Rio de Janeiro, Brazil
| | - David P. Nicolau
- Center for Anti-infective Research and Development, Hartford Hospital, 80 Seymour Street, Hartford, CT USA
| | - Simone Aranha Nouér
- Hospital Universitário Clementino Fraga FilhoFaculdade de Medicina, Universidade Federal do Rio de Janeiro, Rua Rodolpho Paulo Rocco, 255, Rio de Janeiro, RJ Brazil
| | - Kátia Regina Netto dos Santos
- Laboratório de Infecção Hospitalar, Departamento de Microbiologia Médica, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373 - bloco I, Sala I2-010, Cidade Universitária Rio de Janeiro, Rio de Janeiro, Brazil
| | - Carlos Roberto Veiga Kiffer
- Laboratório Especial de Microbiologia Clínica, Disciplina de Infectologia, Escola Paulista de Medicina, Universidade Federal de São Paulo (UNIFESP), Rua Leandro Dupret, São Paulo, SP 188 Brazil
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da Silva CO, Dias AA, da Costa Nery JA, de Miranda Machado A, Ferreira H, Rodrigues TF, Sousa Santos JP, Nadaes NR, Sarno EN, Saraiva EM, Schmitz V, Pessolani MCV. Neutrophil extracellular traps contribute to the pathogenesis of leprosy type 2 reactions. PLoS Negl Trop Dis 2019; 13:e0007368. [PMID: 31504035 PMCID: PMC6736252 DOI: 10.1371/journal.pntd.0007368] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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: 03/27/2019] [Accepted: 08/11/2019] [Indexed: 12/13/2022] Open
Abstract
Up to 50% of patients with the multibacillary form of leprosy are expected to develop acute systemic inflammatory episodes known as type 2 reactions (T2R), thus aggravating their clinical status. Thalidomide rapidly improves T2R symptoms. But, due to its restricted use worldwide, novel alternative therapies are urgently needed. The T2R triggering mechanisms and immune-inflammatory pathways involved in its pathology remain ill defined. In a recent report, we defined the recognition of nucleic acids by TLR9 as a major innate immunity pathway that is activated during T2R. DNA recognition has been described as a major inflammatory pathway in several autoimmune diseases, and neutrophil DNA extracellular traps (NETs) have been shown to be a prime source of endogenous DNA. Considering that neutrophil abundance is a marked characteristic of T2R lesions, the objective of this study was to investigate NETs production in T2R patients based on the hypothesis that the excessive NETs formation would play a major role in T2R pathogenesis. Abundant NETs were found in T2R skin lesions, and increased spontaneous NETs formation was observed in T2R peripheral neutrophils. Both the M. leprae whole-cell sonicate and the CpG-Hlp complex, mimicking a mycobacterial TLR9 ligand, were able to induce NETs production in vitro. Moreover, TLR9 expression was shown to be higher in T2R neutrophils, suggesting that DNA recognition via TLR9 may be one of the pathways triggering this process during T2R. Finally, treatment of T2R patients with thalidomide for 7 consecutive days resulted in a decrease in all of the evaluated in vivo and ex vivo NETosis parameters. Altogether, our findings shed light on the pathogenesis of T2R, which, it is hoped, will contribute to the emergence of novel alternative therapies and the identification of prognostic reactional markers in the near future. Leprosy is caused by a mycobacterium that has a predilection for skin and nerve cells. The chronic course of the disease may be interrupted by acute inflammatory episodes known as reactions, despite effective bacterial killing with antibiotics. Reactions aggravate the patient’s clinical status and may become a medical emergency. Type 2 reactions (T2R) only occur in patients with high bacterial burden and are treated with thalidomide and/or corticosteroids. We are interested in understanding how inflammation is triggered and amplified during T2R. In this study we investigated the potential role of extracellular DNA released by neutrophils (known as NETs) in T2R, since they have been shown to cause inflammation. Abundant NETs were found in T2R skin lesions, and increased spontaneous NETs formation was observed in neutrophils present in the blood of T2R patients. Moreover, bacterial constituents were able to induce NETs production. Finally, treatment of T2R patients with thalidomide resulted in decreased NET formation. Altogether, our findings shed light on the pathogenesis of T2R, which, it is hoped, will contribute to the identification of biomarkers for early diagnosis and emergence of novel alternative therapies in the near future.
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Affiliation(s)
- Camila Oliveira da Silva
- Laboratório de Microbiologia Celular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Rio de Janeiro, Brazil
| | - André Alves Dias
- Laboratório de Microbiologia Celular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Rio de Janeiro, Brazil
| | - José Augusto da Costa Nery
- Laboratório de Hanseníase, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Rio de Janeiro, Brazil
| | - Alice de Miranda Machado
- Laboratório de Hanseníase, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Rio de Janeiro, Brazil
| | - Helen Ferreira
- Laboratório de Hanseníase, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Rio de Janeiro, Brazil
| | - Thais Fernanda Rodrigues
- Laboratório de Microbiologia Celular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Rio de Janeiro, Brazil
| | - João Pedro Sousa Santos
- Laboratório de Microbiologia Celular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Rio de Janeiro, Brazil
| | - Natalia Rocha Nadaes
- Laboratório de Imunobiologia das Leishmanioses, Departamento de Imunologia, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Rio de Janeiro, Brazil
| | - Euzenir Nunes Sarno
- Laboratório de Hanseníase, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Rio de Janeiro, Brazil
| | - Elvira Maria Saraiva
- Laboratório de Imunobiologia das Leishmanioses, Departamento de Imunologia, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Rio de Janeiro, Brazil
| | - Verônica Schmitz
- Laboratório de Hanseníase, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Rio de Janeiro, Brazil
| | - Maria Cristina Vidal Pessolani
- Laboratório de Microbiologia Celular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Rio de Janeiro, Brazil
- * E-mail:
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Ferrari RG, Rosario DKA, Cunha-Neto A, Mano SB, Figueiredo EES, Conte-Junior CA. Worldwide Epidemiology of Salmonella Serovars in Animal-Based Foods: a Meta-analysis. Appl Environ Microbiol 2019; 85:e00591-19. [PMID: 31053586 PMCID: PMC6606869 DOI: 10.1128/aem.00591-19] [Citation(s) in RCA: 234] [Impact Index Per Article: 46.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 04/25/2019] [Indexed: 01/27/2023] Open
Abstract
Salmonella spp. are among the most important foodborne pathogens and the third leading cause of human death among diarrheal diseases worldwide. Animals are the primary source of this pathogen, and animal-based foods are the main transmission route to humans. Thus, understanding the global epidemiology of Salmonella serovars is key to controlling and monitoring this bacterium. In this context, this study aimed to evaluate the prevalence and diversity of Salmonella enterica serovars in animal-based foods (beef, pork, poultry, and seafood) throughout the five continents (Africa, the Americas [North and Latin America], Asia, Europe, and Oceania). The meta-analysis consisted of a chemometric assessment (hierarchical cluster analysis and principal component analysis) to identify the main epidemiological findings, including the prevalence and diversity of the Salmonella serovars in each matrix. Regarding the serovar distribution, S Typhimurium presented a cosmopolitan distribution, reported in all four assessed matrices and continents; poultry continues to play a central role in the dissemination of the Enteritidis serovar to humans, and Anatum and Weltevreden were the most frequently found in beef and seafood, respectively. Additionally, we recommended careful monitoring of certain serovars, such as Derby, Agona, Infantis, and Kentucky. Finally, given the scientific data regarding the most frequently reported serovars and which matrices constitute the main vehicles for the transmission of this pathogen, control programs may be improved, and specific interventions may be implemented in an attempt to reduce the risk of this pathogen reaching humans.IMPORTANCE Salmonellosis is caused by Salmonella spp. and is the third leading cause of death among food-transmitted diseases. This pathogen is commonly disseminated in domestic and wild animals, and the infection's symptoms are characterized by acute fever, nausea, abdominal pain, and diarrhea. The animals are the primary source of salmonellae, and animal-based foods are the main transmission route to humans. Therefore, data collected from these sources could contribute to future global interventions for effective control and surveillance of Salmonella along the food chain. In light of this, the importance of our research is in identifying the prevalence of Salmonella serovars in four animal-based food matrices (pork, poultry, beef, and seafood) and to evaluate the importance that each matrix has as the primary source of this pathogen to humans.
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Affiliation(s)
- Rafaela G Ferrari
- Molecular and Analytical Laboratory Center, Department of Food Technology, Faculty of Veterinary, Federal Fluminense University, Niterói, Brazil
- Post Graduate Program in Food Science Program, Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Denes K A Rosario
- Molecular and Analytical Laboratory Center, Department of Food Technology, Faculty of Veterinary, Federal Fluminense University, Niterói, Brazil
- Post Graduate Program in Food Science Program, Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Adelino Cunha-Neto
- Molecular and Analytical Laboratory Center, Department of Food Technology, Faculty of Veterinary, Federal Fluminense University, Niterói, Brazil
- Nutrition, Food and Metabolism Program, Nutrition Faculty, Federal University of Mato Grosso, Cuiabá, Brazil
| | - Sérgio B Mano
- Molecular and Analytical Laboratory Center, Department of Food Technology, Faculty of Veterinary, Federal Fluminense University, Niterói, Brazil
| | - Eduardo E S Figueiredo
- Animal Science Program, Faculty of Agronomy and Animal Science, Federal University of Mato Grosso, Cuiabá, Brazil
- Nutrition, Food and Metabolism Program, Nutrition Faculty, Federal University of Mato Grosso, Cuiabá, Brazil
| | - Carlos A Conte-Junior
- Molecular and Analytical Laboratory Center, Department of Food Technology, Faculty of Veterinary, Federal Fluminense University, Niterói, Brazil
- Post Graduate Program in Food Science Program, Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- National Institute of Health Quality Control, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
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Alencar AK, Carvalho FI, Silva AM, Martinez ST, Calasans-Maia JA, Fraga CM, Barreiro EJ, Zapata-Sudo G, Sudo RT. Synergistic interaction between a PDE5 inhibitor (sildenafil) and a new adenosine A2A receptor agonist (LASSBio-1359) improves pulmonary hypertension in rats. PLoS One 2018; 13:e0195047. [PMID: 29677206 PMCID: PMC5909907 DOI: 10.1371/journal.pone.0195047] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 03/15/2018] [Indexed: 01/08/2023] Open
Abstract
Introduction Pulmonary hypertension (PH) is characterized by enhanced pulmonary vascular resistance, which causes right ventricle (RV) pressure overload and results in right sided heart failure and death. This work investigated the effectiveness of a combined therapy with PDE5 inhibitor (PDE5i) and a new adenosine A2A receptor (A2AR) agonist in mitigating monocrotaline (MCT) induced PH in rats. Methods An in vitro isobolographic analysis was performed to identify possible synergistic relaxation effect between sildenafil and LASSBio 1359 in rat pulmonary arteries (PAs). In the in vivo experiments, PH was induced in male Wistar rats by a single intraperitoneal injection of 60 mg/kg MCT. Rats were divided into the following groups: control (saline injection only), MCT + vehicle, MCT + sildenafil, MCT + LASSBio 1359 and MCT + combination of sildenafil and LASSBio 1359. Fourteen days after the MCT injection, rats were treated daily with oral administration of the regimen therapies or vehicle for 14 days. Cardiopulmonary system function and structure were evaluated by echocardiography. RV systolic pressure and PA endothelial function were measured. Results Isobolographic analysis showed a synergistic interaction between sildenafil and LASSBio 1359 in rat PAs. Combined therapy with sildenafil and LASSBio 1359 but not monotreatment with low dosages of either sildenafil or LASSBio 1359 ameliorated all of PH related abnormalities in cardiopulmonary function and structure in MCT challenged rats. Conclusions The combination of sildenafil and LASSBio 1359 has a synergistic interaction, suggesting that combined use of these pharmacological targets may be an alternative to improve quality of life and outcomes for PH patients.
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Affiliation(s)
- Allan K. Alencar
- Programa de Pesquisa em Desenvolvimento de Fármacos, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Fábio I. Carvalho
- Programa de Pesquisa em Desenvolvimento de Fármacos, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ananssa M. Silva
- Programa de Pesquisa em Desenvolvimento de Fármacos, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Sabrina T. Martinez
- Instituto de Química, Universidade Federal Fluminense, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Jorge A. Calasans-Maia
- Serviço de Anestesiologia, Hospital Universitário, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Carlos M. Fraga
- Programa de Pesquisa em Desenvolvimento de Fármacos, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Eliezer J. Barreiro
- Programa de Pesquisa em Desenvolvimento de Fármacos, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Gisele Zapata-Sudo
- Programa de Pesquisa em Desenvolvimento de Fármacos, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Roberto T. Sudo
- Programa de Pesquisa em Desenvolvimento de Fármacos, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
- * E-mail:
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Stankevicins L, Barat A, Dessen P, Vassetzky Y, de Moura Gallo CV. The microRNA-205-5p is correlated to metastatic potential of 21T series: A breast cancer progression model. PLoS One 2017; 12:e0173756. [PMID: 28346474 PMCID: PMC5367783 DOI: 10.1371/journal.pone.0173756] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [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: 03/10/2016] [Accepted: 02/27/2017] [Indexed: 12/02/2022] Open
Abstract
MicroRNA is a class of noncoding RNAs able to base pair with complementary messenger RNA sequences, inhibiting their expression. These regulatory molecules play important roles in key cellular processes including cell proliferation, differentiation and response to DNA damage; changes in miRNA expression are a common feature of human cancers. To gain insights into the mechanisms involved in breast cancer progression we conducted a microRNA global expression analysis on a 21T series of cell lines obtained from the same patient during different stages of breast cancer progression. These stages are represented by cell lines derived from normal epithelial (H16N2), atypical ductal hyperplasia (21PT), primary in situ ductal carcinoma (21NT) and pleural effusion of a lung metastasis (21MT-1 and 21MT-2). In a global microRNA expression analysis, miR-205-5p was the only miRNA to display an important downregulation in the metastatic cell lines (21MT-1; 21MT-2) when compared to the non-invasive cells (21PT and 21NT). The lower amounts of miR-205-5p found also correlated with high histological grades biopsies and with higher invasion rates in a Boyden chamber assay. This work pinpoints miR-205-5p as a potential player in breast tumor invasiveness.
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Affiliation(s)
- L. Stankevicins
- Departamento de Genética, Universidade do Estado do Rio de Janeiro, Instituto de Biologia Roberto Alcantara Gomes, Rio de Janeiro, Brazil
- CNRS UMR 8126 «Signalisation, noyaux et innovations en cancérologie», Université Paris-Sud, Institut de Cancérologie Gustave-Roussy, Villejuif cedex, France
| | - A. Barat
- CNRS UMR 8126 «Signalisation, noyaux et innovations en cancérologie», Université Paris-Sud, Institut de Cancérologie Gustave-Roussy, Villejuif cedex, France
| | - P. Dessen
- Functional Genomics Unit, Institut de Cancérologie Gustave-Roussy, Villejuif, France
| | - Y. Vassetzky
- CNRS UMR 8126 «Signalisation, noyaux et innovations en cancérologie», Université Paris-Sud, Institut de Cancérologie Gustave-Roussy, Villejuif cedex, France
- N.K. Koltzov Institute of Developmental Biology RAS, Moscow, Russia
| | - C. V. de Moura Gallo
- Departamento de Genética, Universidade do Estado do Rio de Janeiro, Instituto de Biologia Roberto Alcantara Gomes, Rio de Janeiro, Brazil
- * E-mail:
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Gardinali NR, Guimarães JR, Melgaço JG, Kevorkian YB, Bottino FDO, Vieira YR, da Silva ACDA, Pinto DP, da Fonseca LB, Vilhena LS, Uiechi E, da Silva MCC, Moran J, Marchevsky RS, Cruz OG, Otonel RAA, Alfieri AA, de Oliveira JM, Gaspar AMC, Pinto MA. Cynomolgus monkeys are successfully and persistently infected with hepatitis E virus genotype 3 (HEV-3) after long-term immunosuppressive therapy. PLoS One 2017; 12:e0174070. [PMID: 28328941 PMCID: PMC5362194 DOI: 10.1371/journal.pone.0174070] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [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: 12/05/2016] [Accepted: 03/02/2017] [Indexed: 01/19/2023] Open
Abstract
Epidemiological studies found that hepatitis E virus genotype 3 (HEV-3) infection was associated with chronic hepatitis and cirrhosis in immunocompromised patients. Our study aimed to investigate the relationship between the host immunosuppressive status and the occurrence of HEV-related chronic hepatitis. Here we describe a successful experimental study, using cynomolgus monkeys previously treated with tacrolimus, a potent calcineurin inhibitor immunosuppressant, and infected with a Brazilian HEV-3 strain isolated from naturally infected pigs. HEV infected monkeys were followed up during 160 days post infection (dpi) by clinical signs; virological, biochemical and haematological parameters; and liver histopathology. The tacrolimus blood levels were monitored throughout the experiment. Immunosuppression was confirmed by clinical and laboratorial findings, such as: moderate weight loss, alopecia, and herpes virus opportunistic infection. In this study, chronic HEV infection was characterized by the mild increase of liver enzymes serum levels; persistent RNA viremia and viral faecal shedding; and liver histopathology. Three out of four immunosuppressed monkeys showed recurrent HEV RNA detection in liver samples, evident hepatocellular ballooning degeneration, mild to severe macro and microvesicular steatosis (zone 1), scattered hepatocellular apoptosis, and lobular focal inflammation. At 69 dpi, liver biopsies of all infected monkeys revealed evident ballooning degeneration (zone 3), discrete hepatocellular apoptosis, and at most mild portal and intra-acinar focal inflammation. At 160 dpi, the three chronically HEV infected monkeys showed microscopic features (piecemeal necrosis) corresponding to chronic hepatitis in absence of fibrosis and cirrhosis in liver parenchyma. Within 4-months follow up, the tacrolimus-immunosuppressed cynomolgus monkeys infected with a Brazilian swine HEV-3 strain exhibited more severe hepatic lesions progressing to chronic hepatitis without liver fibrosis, similarly as shown in tacrolimus-immunosuppressed solid organ transplant (SOT) recipients. The cause-effect relationship between HEV infection and tacrolimus treatment was confirmed in this experiment.
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Affiliation(s)
- Noemi Rovaris Gardinali
- Laboratório de Desenvolvimento Tecnológico em Virologia, Oswaldo Cruz, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
- * E-mail:
| | - Juliana Rodrigues Guimarães
- Laboratório de Desenvolvimento Tecnológico em Virologia, Oswaldo Cruz, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Juliana Gil Melgaço
- Laboratório de Desenvolvimento Tecnológico em Virologia, Oswaldo Cruz, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Yohan Britto Kevorkian
- Laboratório de Desenvolvimento Tecnológico em Virologia, Oswaldo Cruz, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Fernanda de Oliveira Bottino
- Laboratório de Desenvolvimento Tecnológico em Virologia, Oswaldo Cruz, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Yasmine Rangel Vieira
- Laboratório de Desenvolvimento Tecnológico em Virologia, Oswaldo Cruz, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Aline Campos de Azevedo da Silva
- Serviço de Equivalência e Farmacocinética –SEFAR, Vice-Presidência de Produção e Inovação em Saúde–VPPIS, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Douglas Pereira Pinto
- Serviço de Equivalência e Farmacocinética –SEFAR, Vice-Presidência de Produção e Inovação em Saúde–VPPIS, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Laís Bastos da Fonseca
- Serviço de Equivalência e Farmacocinética –SEFAR, Vice-Presidência de Produção e Inovação em Saúde–VPPIS, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Leandro Schiavo Vilhena
- Serviço de Equivalência e Farmacocinética –SEFAR, Vice-Presidência de Produção e Inovação em Saúde–VPPIS, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | | | - Maria Cristina Carlan da Silva
- Laboratório de Biologia Molecular de Patógenos (Virologia Molecular), Centro de Ciências Naturais e Humanas-CCNH, Universidade Federal do ABC-UFABC, São Bernardo do Campo, São Paulo, Brazil
| | - Julio Moran
- Dr. Julio Moran Laboratories, Ebmatingen, Zurich, Switzerland
| | - Renato Sérgio Marchevsky
- Laboratório de Neurovirulência, Instituto de Tecnologia em Imunobiológicos Bio-Manguinhos, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | | | | | - Amauri Alcindo Alfieri
- Laboratório de Virologia Animal, Departamento de Medicina Veterinária Preventiva Universidade Estadual de Londrina, Paraná, Brazil
| | - Jaqueline Mendes de Oliveira
- Laboratório de Desenvolvimento Tecnológico em Virologia, Oswaldo Cruz, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Ana Maria Coimbra Gaspar
- Laboratório de Desenvolvimento Tecnológico em Virologia, Oswaldo Cruz, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Marcelo Alves Pinto
- Laboratório de Desenvolvimento Tecnológico em Virologia, Oswaldo Cruz, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
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Couto I, Victoria M, Veloso VG, Rodrigues L, Grinsztejn B, Lacerda M, Victoria F, Perazzo H. Prevalence and predictors for compensated Advanced Chronic Liver Disease (c-ACLD) in patients with chronic Hepatitis Delta Virus (HDV) infection. PLoS One 2017; 12:e0174453. [PMID: 28329027 PMCID: PMC5362235 DOI: 10.1371/journal.pone.0174453] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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: 11/24/2016] [Accepted: 03/09/2017] [Indexed: 02/07/2023] Open
Abstract
Objective The study aimed to evaluate the prevalence and predictor factors for compensated advanced chronic liver disease (c-ACLD) in patients with hepatitis Delta virus (HDV) infection. Methods This cross-sectional study included consecutive HDV-infected patients defined by positive anti-HDV. Patients with hepatitis C coinfection, liver transplantation or presence of conditions that limit liver (LSM) or spleen stiffness measurement (SSM) were excluded. Blood tests, abdominal ultrasound, SSM and LSM by transient elastography (FibroScan®) were performed at the same day. Alcohol consumption was quantified using the AUDIT score and c-ACLD was defined by LSM ≥ 15 kPa performed by an experimented operator blinded for clinical and laboratory data. Results 101 patients were eligible and few patients were excluded due to negative anti-HDV (n = 7), hepatitis C coinfection (n = 2), liver transplantation (n = 10) and limitation for LSM or SSM (n = 5). Therefore, 77 patients [61% male, age = 43 (IQR,36–52) years] were included. The prevalence of c-ACLD was 57% (n = 44/77). Patients with c-ACLD had a higher rate of detectable HBV viral load (p = 0.039), higher levels of transaminases, GGT, alkaline phosphatases, total bilirubin and INR (p<0.001 for all), as well as lower platelet count and albumin levels (p>0.001 for both) compared to those without c-ACLD. Patients with c-ACLD had higher SSM [65.2 (IQR,33.8–75.0) vs 21.8 (16.5–32.0) kPa; p<0.001] and higher splenic volume [475 (IQR,311–746) vs 154 (112–283) cm3; p<0.001] compared to those without. Detectable HBV viral load (>10 UI/ml), alkaline phosphatase (per IU/L) and GGT levels (per IU/L) were independently associated with c-ACLD in all multivariate models. Splenic volume [per cm3,OR = 1.01 (95%CI,1.01–1.02);p = 0.002], SSM [per kPa, OR = 1.04 (1.01–1.07);p = 0.012] and splenomegaly [yes vs no,OR = 28.45 (4.42–182.95);p<0.001] were independently associated with c-ACLD. Conclusions The prevalence of c-ACLD was high in patients with chronic HDV infection in western Amazon basin. HBV viral load, liver enzymes and splenic features can be used to predict severe liver disease in HDV-infected patients.
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Affiliation(s)
- Ingrid Couto
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado (FMT HVD), Manaus, Amazonas, Brazil
| | - Marilu Victoria
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado (FMT HVD), Manaus, Amazonas, Brazil
| | - Valdiléa G. Veloso
- Laboratório de Pesquisa Clínica em DST/AIDS (LAPCLIN-AIDS), Instituto Nacional de Infectologia Evandro Chagas - Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
| | - Lorena Rodrigues
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado (FMT HVD), Manaus, Amazonas, Brazil
| | - Beatriz Grinsztejn
- Laboratório de Pesquisa Clínica em DST/AIDS (LAPCLIN-AIDS), Instituto Nacional de Infectologia Evandro Chagas - Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
| | - Marcus Lacerda
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado (FMT HVD), Manaus, Brazil
- Instituto de Pesquisas Leônidas & Maria Deane - Fundação Oswaldo Cruz (FIOCRUZ), Manaus, Brazil
| | - Flamir Victoria
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado (FMT HVD), Manaus, Amazonas, Brazil
| | - Hugo Perazzo
- Laboratório de Pesquisa Clínica em DST/AIDS (LAPCLIN-AIDS), Instituto Nacional de Infectologia Evandro Chagas - Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
- * E-mail: ,
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Monteiro MLG, Mársico ET, Soares MS, Magalhães AO, Canto ACVCS, Costa-Lima BRC, Alvares TS, Conte CA. Nutritional Profile and Chemical Stability of Pasta Fortified with Tilapia (Oreochromis niloticus) Flour. PLoS One 2016; 11:e0168270. [PMID: 27973565 PMCID: PMC5156385 DOI: 10.1371/journal.pone.0168270] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [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: 09/22/2016] [Accepted: 11/29/2016] [Indexed: 12/12/2022] Open
Abstract
Physicochemical parameters of pasta enriched with tilapia (Oreochromis niloticus) flour were investigated. Five formulations were prepared with different concentrations of tilapia flour as partial substitute of wheat flour: pasta without tilapia flour (PTF0%), pasta with 6% (PTF6%), 12% (PTF12%), 17% (PTF17%), and 23% (PTF23%) of tilapia flour. The formulations were assessed for proximate composition, fatty acid and amino acid profile on day 1 whereas, instrumental color parameters (L*, a* and b* values), pH, water activity (aw), and lipid and protein oxidation were evaluated on days 1, 7, 14, and 21 of storage at 25°C. Fortification with tilapia flour increased (p < 0.05) protein, lipid, ash, total essential amino acids, and total polyunsaturated fatty acids contents. In addition, supplementation of pasta with tilapia flour decreased (p < 0.05) lightness and water activity while redness, yellowness, pH values, and lipid oxidation were increased (p < 0.05) in a level-dependent manner. Nevertheless, all formulations were exhibited storage stability at 25°C. In general, protein oxidation was greater (p < 0.05) in the pasta containing 12%, 17%, and 23% of tilapia flour than their counterparts, and the storage promoted an increase (p < 0.05) on the carbonyl content in all formulations. Thus, pasta with 6% of tilapia flour has the potential to be a technological alternative to food industry for the nutritional enrichment of traditional pasta with negligible negative effects on the chemical stability of the final product during 21 days at 25°C.
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Affiliation(s)
| | - Eliane T. Mársico
- Departament of Food Technology, Universidade Federal Fluminense, Rio de Janeiro, Brazil
| | - Manoel S. Soares
- Departament of Food Engineering, School of Agronomy, Universidade Federal de Goiás, Goiânia, Brazil
| | - Amanda O. Magalhães
- Departament of Food Engineering, School of Agronomy, Universidade Federal de Goiás, Goiânia, Brazil
| | | | | | - Thiago S. Alvares
- Institute of Nutrition, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Carlos A. Conte
- Departament of Food Technology, Universidade Federal Fluminense, Rio de Janeiro, Brazil
- Institute of Chemical, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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