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da Costa Rodrigues K, da Silva Neto MR, Dos Santos Barboza V, Hass SE, de Almeida Vaucher R, Giongo JL, Schumacher RF, Wilhelm EA, Luchese C. New curcumin-loaded nanocapsules as a therapeutic alternative in an amnesia model. Metab Brain Dis 2024; 39:589-609. [PMID: 38351421 DOI: 10.1007/s11011-023-01329-w] [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: 04/02/2023] [Accepted: 11/22/2023] [Indexed: 04/23/2024]
Abstract
This study aimed to investigate the action of two different formulations of curcumin (Cur)-loaded nanocapsules (Nc) (Eudragit [EUD] and poly (ɛ-caprolactone) [PCL]) in an amnesia mice model. We also investigated the formulations' effects on scopolamine-induced (SCO) depressive- and anxiety-like comorbidities, the cholinergic system, oxidative parameters, and inflammatory markers. Male Swiss mice were randomly divided into five groups (n = 8): group I (control), group II (Cur PCL Nc 10 mg/kg), group III (Cur EUD Nc 10 mg/kg), group IV (free Cur 10 mg/kg), and group V (SCO). Treatments with Nc or Cur (free) were performed daily or on alternate days. After 30 min of treatment, the animals received the SCO and were subjected to behavioral tests 30 min later (Barnes maze, open-field, object recognition, elevated plus maze, tail suspension tests, and step-down inhibitory avoidance tasks). The animals were then euthanized and tissue was removed for biochemical assays. Our results demonstrated that Cur treatment (Nc or free) protected against SCO-induced amnesia and depressive-like behavior. The ex vivo assays revealed lower acetylcholinesterase (AChE) and catalase (CAT) activity, reduced thiobarbituric species (TBARS), reactive species (RS), and non-protein thiols (NSPH) levels, and reduced interleukin-6 (IL-6) and tumor necrosis factor (TNF) expression. The treatments did not change hepatic markers in the plasma of mice. After treatments on alternate days, Cur Nc had a more significant effect than the free Cur protocol, implying that Cur may have prolonged action in Nc. This finding supports the concept that it is possible to achieve beneficial effects in nanoformulations, and treatment on alternate days differs from the free Cur protocol regarding anti-amnesic effects in mice.
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Affiliation(s)
- Karline da Costa Rodrigues
- Programa de Pós-Graduação em Bioquímica e Bioprospecção, Laboratório de Pesquisa em Farmacologia Bioquímica (LaFarBio), Grupo de Pesquisa em Neurobiotecnologia (GPN), Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas (UFPel), Pelotas, RS, CEP 96010-900, Brazil
| | - Manoel Rodrigues da Silva Neto
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Campus Uruguaiana BR 472, Km 7, Uruguaiana, RS, 97500-970, Brazil
| | - Victor Dos Santos Barboza
- Laboratório de Pesquisa em Bioquímica e Biologia Molecular de Micro-organismos (LaPeBBioM), Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas (UFPel), Pelotas, RS, CEP 96010-900, Brazil
| | - Sandra Elisa Hass
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Campus Uruguaiana BR 472, Km 7, Uruguaiana, RS, 97500-970, Brazil
| | - Rodrigo de Almeida Vaucher
- Laboratório de Pesquisa em Bioquímica e Biologia Molecular de Micro-organismos (LaPeBBioM), Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas (UFPel), Pelotas, RS, CEP 96010-900, Brazil
| | - Janice Luehring Giongo
- Laboratório de Pesquisa em Bioquímica e Biologia Molecular de Micro-organismos (LaPeBBioM), Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas (UFPel), Pelotas, RS, CEP 96010-900, Brazil
| | | | - Ethel Antunes Wilhelm
- Programa de Pós-Graduação em Bioquímica e Bioprospecção, Laboratório de Pesquisa em Farmacologia Bioquímica (LaFarBio), Grupo de Pesquisa em Neurobiotecnologia (GPN), Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas (UFPel), Pelotas, RS, CEP 96010-900, Brazil
| | - Cristiane Luchese
- Programa de Pós-Graduação em Bioquímica e Bioprospecção, Laboratório de Pesquisa em Farmacologia Bioquímica (LaFarBio), Grupo de Pesquisa em Neurobiotecnologia (GPN), Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas (UFPel), Pelotas, RS, CEP 96010-900, Brazil.
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Barboza VDS, Domingues WB, de Souza TT, Collares TV, Seixas FK, Pacheco BS, Sousa FSS, Oliveira TL, de Lima M, de Pereira CMP, Spilki FR, Giongo JL, Vaucher RDA. Reverse transcription-loop-mediated isothermal amplification (RT-LAMP) assay as a rapid molecular diagnostic tool for COVID-19 in healthcare workers. J Clin Virol Plus 2023; 3:100134. [PMID: 36742065 PMCID: PMC9891106 DOI: 10.1016/j.jcvp.2023.100134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 10/19/2022] [Accepted: 01/06/2023] [Indexed: 01/28/2023] Open
Abstract
In December 2019, the Chinese Center for Disease Control (CDC of China) reported an outbreak of pneumonia in the city of Wuhan (Hubei province, China) that haunted the world, resulting in a global pandemic. This outbreak was caused by a betacoronavirus named severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Several of these cases have been observed in healthcare professionals working in hospitals and providing care on the pandemic's frontline. In the present study, nasopharyngeal swab samples of healthcare workers were used to assess the performance of the reverse transcription loop-mediated isothermal amplification (RT-LAMP) assay and subsequently compared with the real-time reverse-transcription quantitative PCR (RT-qPCR) method. Thus, in this study, we validated a method for detecting SARS-CoV-2 based on RT-LAMP that can be used to diagnose these workers. The methodology used was based on analyzing the sensitivity, specificity, evaluation of the detection limit, and cross-reaction with other respiratory viruses. The agreement was estimated using a dispersion diagram designed using the Bland-Altman method. A total of 100 clinical specimens of nasopharyngeal swabs were collected from symptomatic and asymptomatic healthcare workers in Pelotas, Brazil, during the SARS-CoV-2 outbreak. RT-LAMP assay, it was possible to detect SARS-CoV-2 in 96.7% of the healthcare professionals tested using the E gene and N gene primers approximately and 100% for the gene of human β-actin. The observed agreement was considered excellent for the primer set of the E and N genes (k = 0.957 and k = 0.896), respectively. The sensitivity of the RT-LAMP assay was positive for the primer set of the E gene, detected to approximately 2 copies per reaction. For the primer set of the N gene, the assay was possible to verify an LoD of approximately 253 copies per reaction. After executing the RT-LAMP assay, no positive reactions were observed for any of the virus respiratory tested. Therefore, we conclude that RT-LAMP is effective for rapid molecular diagnosis during the COVID-19 outbreak period in healthcare professionals.
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Affiliation(s)
- Victor dos Santos Barboza
- Laboratório de Pesquisa em Bioquímica e Biologia Molecular de Micro-organismos, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - William Borges Domingues
- Laboratório de Genômica Estrutural, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Thobias Toniolo de Souza
- Laboratório de Pesquisa em Bioquímica e Biologia Molecular de Micro-organismos, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Tiago Veiras Collares
- Laboratório de Biotecnologia do Câncer, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Fabiana Kommling Seixas
- Laboratório de Biotecnologia do Câncer, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Bruna Silveira Pacheco
- Laboratório de Biotecnologia do Câncer, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Fernanda Severo Sabedra Sousa
- Laboratório de Biotecnologia do Câncer, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Thaís Larré Oliveira
- Laboratório de Vacinologia, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Marcelo de Lima
- Laboratório de Virologia e Imunologia, Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | | | - Fernando Rosado Spilki
- Laboratório de Microbiologia Molecular, Universidade FEEVALE, Novo Hamburgo, Rio Grande do Sul, Brazil
| | - Janice Luehring Giongo
- Laboratório de Pesquisa em Bioquímica e Biologia Molecular de Micro-organismos, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Rodrigo de Almeida Vaucher
- Laboratório de Pesquisa em Bioquímica e Biologia Molecular de Micro-organismos, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil,Corresponding author
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Zank PD, Cerveira MM, dos Santos VB, Klein VP, de Souza TT, Bueno DT, Poletti T, Leitzke AF, Luehring Giongo J, Carreño NLV, Mansilla A, Astorga-España MS, de Pereira CMP, Vaucher RDA. Carrageenan from Gigartina skottsbergii: A Novel Molecular Probe to Detect SARS-CoV-2. Biosensors (Basel) 2023; 13:378. [PMID: 36979590 PMCID: PMC10046870 DOI: 10.3390/bios13030378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 02/25/2023] [Accepted: 02/26/2023] [Indexed: 06/18/2023]
Abstract
The COVID-19 pandemic has caused an unprecedented health and economic crisis, highlighting the importance of developing new molecular tools to monitor and detect SARS-CoV-2. Hence, this study proposed to employ the carrageenan extracted from Gigartina skottsbergii algae as a probe for SARS-CoV-2 virus binding capacity and potential use in molecular methods. G. skottsbergii specimens were collected in the Chilean subantarctic ecoregion, and the carrageenan was extracted -using a modified version of Webber's method-, characterized, and quantified. After 24 h of incubation with an inactivated viral suspension, the carrageenan's capacity to bind SARS-CoV-2 was tested. The probe-bound viral RNA was quantified using the reverse transcription and reverse transcription loop-mediated isothermal amplification (RT-LAMP) methods. Our findings showed that carrageenan extraction from seaweed has a similar spectrum to commercial carrageenan, achieving an excellent proportion of binding to SARS-CoV-2, with a yield of 8.3%. Viral RNA was also detected in the RT-LAMP assay. This study shows, for the first time, the binding capacity of carrageenan extracted from G. skottsbergii, which proved to be a low-cost and highly efficient method of binding to SARS-CoV-2 viral particles.
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Affiliation(s)
- Patrícia Daiane Zank
- Department of Chemical, Pharmaceutical, and Food Sciences, Microorganism Biochemistry and Molecular Biology Research Laboratory, (LAPEBBIOM), Federal University of Pelotas, Pelotas 96010-610, RS, Brazil
| | - Milena Mattes Cerveira
- Department of Chemical, Pharmaceutical, and Food Sciences, Microorganism Biochemistry and Molecular Biology Research Laboratory, (LAPEBBIOM), Federal University of Pelotas, Pelotas 96010-610, RS, Brazil
| | - Victor Barboza dos Santos
- Department of Chemical, Pharmaceutical, and Food Sciences, Microorganism Biochemistry and Molecular Biology Research Laboratory, (LAPEBBIOM), Federal University of Pelotas, Pelotas 96010-610, RS, Brazil
| | - Vitor Pereira Klein
- Department of Chemical, Pharmaceutical, and Food Sciences, Microorganism Biochemistry and Molecular Biology Research Laboratory, (LAPEBBIOM), Federal University of Pelotas, Pelotas 96010-610, RS, Brazil
| | - Thobias Toniolo de Souza
- Department of Chemical, Pharmaceutical, and Food Sciences, Microorganism Biochemistry and Molecular Biology Research Laboratory, (LAPEBBIOM), Federal University of Pelotas, Pelotas 96010-610, RS, Brazil
| | - Danielle Tapia Bueno
- Department of Chemical, Pharmaceutical, and Food Sciences, Laboratory for Lipidomic and Bio-Organic Research, Bioforensic Research Group, Federal University of Pelotas, Pelotas 96010-610, RS, Brazil
| | - Tais Poletti
- Department of Chemical, Pharmaceutical, and Food Sciences, Laboratory for Lipidomic and Bio-Organic Research, Bioforensic Research Group, Federal University of Pelotas, Pelotas 96010-610, RS, Brazil
| | - Amanda Fonseca Leitzke
- Department of Chemical, Pharmaceutical, and Food Sciences, Laboratory for Lipidomic and Bio-Organic Research, Bioforensic Research Group, Federal University of Pelotas, Pelotas 96010-610, RS, Brazil
| | - Janice Luehring Giongo
- Department of Chemical, Pharmaceutical, and Food Sciences, Microorganism Biochemistry and Molecular Biology Research Laboratory, (LAPEBBIOM), Federal University of Pelotas, Pelotas 96010-610, RS, Brazil
| | - Neftali Lenin Villarreal Carreño
- Materials Science and Engineering Graduate Program, Technology Development Center, Novonano Laboratory, Federal University of Pelotas, Pelotas 96010-610, RS, Brazil
| | - Andrés Mansilla
- Antarctic and Subantarctic Macroalgae Laboratory, Universidad de Magallanes, Punta Arenas 01855, Chile
| | - Maria Soledad Astorga-España
- Department of Science and Natural Resources, Magallanes Region and Chilean Antarctic, University of Magallanes, Punta Arenas 01855, Chile
| | - Claudio Martin Pereira de Pereira
- Department of Chemical, Pharmaceutical, and Food Sciences, Microorganism Biochemistry and Molecular Biology Research Laboratory, (LAPEBBIOM), Federal University of Pelotas, Pelotas 96010-610, RS, Brazil
| | - Rodrigo de Almeida Vaucher
- Department of Chemical, Pharmaceutical, and Food Sciences, Microorganism Biochemistry and Molecular Biology Research Laboratory, (LAPEBBIOM), Federal University of Pelotas, Pelotas 96010-610, RS, Brazil
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Schoeler GP, Afonso TF, Demarco CF, Dos Santos Barboza V, Sant'anna Cadaval TR, Igansi AV, Gelesky MA, Giongo JL, de Almeida Vaucher R, de Avila Delucis R, Andreazza R. Correction to: SARS-CoV-2 removal with a polyurethane foam composite. Environ Sci Pollut Res Int 2023; 30:22033. [PMID: 36329248 PMCID: PMC9638221 DOI: 10.1007/s11356-022-24031-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- Guilherme Pereira Schoeler
- Postgraduate Program in Environmental Sciences, Center for Engineering, Federal University of Pelotas, R. Benjamin Constant 989, Pelotas, RS, CEP 96010-020, Brazil
| | - Thays França Afonso
- Postgraduate Program in Materials Science and Engineering, Federal University of Pelotas, R. Gomes Carneiro 01, Pelotas, RS, CEP 96010-610, Brazil
| | - Carolina Faccio Demarco
- Postgraduate Program in Materials Science and Engineering, Federal University of Pelotas, R. Gomes Carneiro 01, Pelotas, RS, CEP 96010-610, Brazil
| | - Victor Dos Santos Barboza
- Graduate Program in Biochemistry and Bioprospecting, Research Laboratory in Biochemical and Molecular Biology of Microorganisms (LaPeBBiOM), Federal University of Pelotas, RS, Av. Eliseu Maciel, Campus Universitário, s/n, Capão Do Leão, CEP 96160-000, Brazil
| | - Tito Roberto Sant'anna Cadaval
- School of Chemistry and Food, Federal University of Rio Grande, Av. Itália, Km 8, s/n, Rio Grande, RS, CEP 96203-000, Brazil
| | - Andrei Valerão Igansi
- School of Chemistry and Food, Federal University of Rio Grande, Av. Itália, Km 8, s/n, Rio Grande, RS, CEP 96203-000, Brazil
| | - Marcos Alexandre Gelesky
- School of Chemistry and Food, Federal University of Rio Grande, Av. Itália, Km 8, s/n, Rio Grande, RS, CEP 96203-000, Brazil
| | - Janice Luehring Giongo
- Graduate Program in Biochemistry and Bioprospecting, Research Laboratory in Biochemical and Molecular Biology of Microorganisms (LaPeBBiOM), Federal University of Pelotas, RS, Av. Eliseu Maciel, Campus Universitário, s/n, Capão Do Leão, CEP 96160-000, Brazil
| | - Rodrigo de Almeida Vaucher
- Graduate Program in Biochemistry and Bioprospecting, Research Laboratory in Biochemical and Molecular Biology of Microorganisms (LaPeBBiOM), Federal University of Pelotas, RS, Av. Eliseu Maciel, Campus Universitário, s/n, Capão Do Leão, CEP 96160-000, Brazil
| | - Rafael de Avila Delucis
- Postgraduate Program in Environmental Sciences, Center for Engineering, Federal University of Pelotas, R. Benjamin Constant 989, Pelotas, RS, CEP 96010-020, Brazil
- Postgraduate Program in Materials Science and Engineering, Federal University of Pelotas, R. Gomes Carneiro 01, Pelotas, RS, CEP 96010-610, Brazil
| | - Robson Andreazza
- Postgraduate Program in Environmental Sciences, Center for Engineering, Federal University of Pelotas, R. Benjamin Constant 989, Pelotas, RS, CEP 96010-020, Brazil.
- Postgraduate Program in Materials Science and Engineering, Federal University of Pelotas, R. Gomes Carneiro 01, Pelotas, RS, CEP 96010-610, Brazil.
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Schoeler GP, Afonso TF, Demarco CF, Dos Santos Barboza V, Sant'anna Cadaval TR, Igansi AV, Gelesky MA, Giongo JL, de Almeida Vaucher R, de Avila Delucis R, Andreazza R. SARS-CoV-2 removal with a polyurethane foam composite. Environ Sci Pollut Res Int 2023; 30:22024-22032. [PMID: 36282387 PMCID: PMC9593988 DOI: 10.1007/s11356-022-23758-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
The pandemic of COVID-19 (SARS-CoV-2 disease) has been causing unprecedented health and economic impacts, alerting the world to the importance of basic sanitation and existing social inequalities. The risk of the spread and appearance of new diseases highlights the need for the removal of these pathogens through efficient techniques and materials. This study aimed to develop a polyurethane (PU) biofoam filled with dregs waste (leftover from the pulp and paper industry) for removal SARS-CoV-2 from the water. The biofoam was prepared by the free expansion method with the incorporation of 5wt% of dregs as a filler. For the removal assays, the all materials and its isolated phases were incubated for 24 h with an inactivated SARS-CoV-2 viral suspension. Then, the RNA was extracted and the viral load was quantified using the quantitative reverse transcription (RT-qPCR) technique. The biofoam (polyurethane/dregs) reached a great removal percentage of 91.55%, whereas the isolated dregs waste was 99.03%, commercial activated carbon was 99.64%, commercial activated carbon/polyurethane was 99.30%, and neat PU foam reached was 99.96% for this same property and without statistical difference. Those new materials endowed with low cost and high removal efficiency of SARS-CoV-2 as alternatives to conventional adsorbents.
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Affiliation(s)
- Guilherme Pereira Schoeler
- Postgraduate Program in Environmental Sciences, Center for Engineering, Federal University of Pelotas, R. Benjamin Constant 989, Pelotas, RS, CEP 96010-020, Brazil
| | - Thays França Afonso
- Postgraduate Program in Materials Science and Engineering, Federal University of Pelotas, R. Gomes Carneiro 01, Pelotas, RS, CEP 96010-610, Brazil
| | - Carolina Faccio Demarco
- Postgraduate Program in Materials Science and Engineering, Federal University of Pelotas, R. Gomes Carneiro 01, Pelotas, RS, CEP 96010-610, Brazil
| | - Victor Dos Santos Barboza
- Graduate Program in Biochemistry and Bioprospecting, Research Laboratory in Biochemical and Molecular Biology of Microorganisms (LaPeBBiOM), Federal University of Pelotas, RS, Av. Eliseu Maciel, Campus Universitário, s/n, Capão Do Leão, CEP 96160-000, Brazil
| | - Tito Roberto Sant'anna Cadaval
- School of Chemistry and Food, Federal University of Rio Grande, Av. Itália, Km 8, s/n, Rio Grande, RS, CEP 96203-000, Brazil
| | - Andrei Valerão Igansi
- School of Chemistry and Food, Federal University of Rio Grande, Av. Itália, Km 8, s/n, Rio Grande, RS, CEP 96203-000, Brazil
| | - Marcos Alexandre Gelesky
- School of Chemistry and Food, Federal University of Rio Grande, Av. Itália, Km 8, s/n, Rio Grande, RS, CEP 96203-000, Brazil
| | - Janice Luehring Giongo
- Graduate Program in Biochemistry and Bioprospecting, Research Laboratory in Biochemical and Molecular Biology of Microorganisms (LaPeBBiOM), Federal University of Pelotas, RS, Av. Eliseu Maciel, Campus Universitário, s/n, Capão Do Leão, CEP 96160-000, Brazil
| | - Rodrigo de Almeida Vaucher
- Graduate Program in Biochemistry and Bioprospecting, Research Laboratory in Biochemical and Molecular Biology of Microorganisms (LaPeBBiOM), Federal University of Pelotas, RS, Av. Eliseu Maciel, Campus Universitário, s/n, Capão Do Leão, CEP 96160-000, Brazil
| | - Rafael de Avila Delucis
- Postgraduate Program in Environmental Sciences, Center for Engineering, Federal University of Pelotas, R. Benjamin Constant 989, Pelotas, RS, CEP 96010-020, Brazil
- Postgraduate Program in Materials Science and Engineering, Federal University of Pelotas, R. Gomes Carneiro 01, Pelotas, RS, CEP 96010-610, Brazil
| | - Robson Andreazza
- Postgraduate Program in Environmental Sciences, Center for Engineering, Federal University of Pelotas, R. Benjamin Constant 989, Pelotas, RS, CEP 96010-020, Brazil.
- Postgraduate Program in Materials Science and Engineering, Federal University of Pelotas, R. Gomes Carneiro 01, Pelotas, RS, CEP 96010-610, Brazil.
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Silveira TMD, Silva CFE, Vaucher RDA, Angst PDM, Casarin M, Pola NM. Higher frequency of specific periodontopathogens in hypertensive patients. A pilot study. Braz Dent J 2022; 33:64-73. [PMID: 36287500 PMCID: PMC9645173 DOI: 10.1590/0103-6440202204914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 07/12/2022] [Indexed: 11/06/2022] Open
Abstract
Periodontitis and arterial hypertension are two of the pathologies with the highest global prevalence; evidence reported so far has been favorable to an association between them. This cross-sectional study aimed to evaluate and compare the microbiological counts of hypertensive and normotensive patients with periodontitis. Sociodemographic, behavioral, systemic health data and periodontal clinical parameters were assessed. Counts of A. actinomycetemcomitans, P. intermedia, P. gingivalis and F. nucleatum were performed by real-time polymerase chain reaction using subgingival biofilm samples. Thirty-eight patients were included in this preliminary analysis, divided into two groups: Normotensive Group (NG) (n = 14) and Hypertensive Group (HG) (n = 24). Patients diagnosed with periodontitis composed both groups. Data analysis was performed with significance level of 5%. There was no significant difference between groups for clinical periodontitis diagnosis. In addition, hypertensive individuals had higher P. intermedia, P. gingivalis, and F. nucleatum counts when compared to normotensive individuals. The parameters probing pocket depth, bleeding on probing, and A. actinomycetemcomitans count did not presented statistical differences between groups. With these preliminary results, it can be concluded that the presence of arterial hypertension may be associated with a greater quantity of periodontopathogenic bacterial of some species in individuals with periodontitis.
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Demarco CF, Afonso TF, Schoeler GP, Barboza VDS, Rocha LDS, Pieniz S, Giongo JL, Vaucher RDA, Igansi AV, Cadaval TRS, Andreazza R. New low-cost biofilters for SARS-CoV-2 using Hymenachne grumosa as a precursor. J Clean Prod 2022; 331:130000. [PMID: 34898862 PMCID: PMC8650601 DOI: 10.1016/j.jclepro.2021.130000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 11/28/2021] [Accepted: 12/02/2021] [Indexed: 06/14/2023]
Abstract
The ongoing global spread of COVID-19 (SARS-CoV-2 2019 disease) is causing an unprecedented repercussion on human health and the economy. Despite the primary mode of transmission being through air droplets and contact, the transmission via wastewater is a critical concern. There is a lack of techniques able to provide complete disinfection, along with the uncertainty related to the behavior of SARS-CoV-2 in the natural environment and risks of contamination. This fact makes urgent the research towards new alternatives for virus removal from water and wastewater. Thus, this research aimed to characterize new lost-cost adsorbents for SARS-CoV-2 using Hymenachne grumosa as a precursor and verify its potential for removing SARS-CoV-2 from the solution. The aquatic macrophyte H. grumosa had in natura and activated carbon produced with H. grumosa and zinc chloride (ZnCl2,1:1) impregnation and carbonization (700 °C, 1 h) were incubated for 24 h with inactivated SARS-CoV-2 viral suspension, and then the ribonucleic acid (RNA) was extracted and viral load quantified through reverse transcription-quantitative polymerase chain reaction (RT-qPCR) technique. The results demonstrated the great adsorption potential, achieving removal of 98.44% by H. grumosa "in natura", and 99.61% by H. grumosa with carbon activation, being similar to commercial activated carbon (99.67%). Thus, this study highlights the possibility of low-cost biofilters to be used for SARS-CoV-2 removal, as an excellent alternative for wastewater treatment or watercourses decontamination.
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Affiliation(s)
- Carolina Faccio Demarco
- Science and Engineering of Materials Postgraduate Program, Federal University of Pelotas, R. Gomes Carneiro 01, CEP 96010-610, Pelotas, RS, Brazil
| | - Thays França Afonso
- Science and Engineering of Materials Postgraduate Program, Federal University of Pelotas, R. Gomes Carneiro 01, CEP 96010-610, Pelotas, RS, Brazil
| | - Guilherme Pereira Schoeler
- Environmental Sciences Postgraduate Program, Federal University of Pelotas. R. Benjamin Constant 989, CEP 96010-020, Pelotas, RS, Brazil
| | - Victor Dos Santos Barboza
- Graduate Program in Biochemistry and Bioprospecting, Research Laboratory in Biochemical and Molecular Biology of Microorganisms (LaPeBBiOM), Federal University of Pelotas, Av. Eliseu Maciel, Campus Universitário, S/n, Capão do Leão, CEP 96160-000, RS, Brazil
| | - Liziane Dos Santos Rocha
- Graduate Program in Biochemistry and Bioprospecting, Research Laboratory in Biochemical and Molecular Biology of Microorganisms (LaPeBBiOM), Federal University of Pelotas, Av. Eliseu Maciel, Campus Universitário, S/n, Capão do Leão, CEP 96160-000, RS, Brazil
| | - Simone Pieniz
- Environmental Sciences Postgraduate Program, Federal University of Pelotas. R. Benjamin Constant 989, CEP 96010-020, Pelotas, RS, Brazil
| | - Janice Luehring Giongo
- Graduate Program in Biochemistry and Bioprospecting, Research Laboratory in Biochemical and Molecular Biology of Microorganisms (LaPeBBiOM), Federal University of Pelotas, Av. Eliseu Maciel, Campus Universitário, S/n, Capão do Leão, CEP 96160-000, RS, Brazil
| | - Rodrigo de Almeida Vaucher
- Graduate Program in Biochemistry and Bioprospecting, Research Laboratory in Biochemical and Molecular Biology of Microorganisms (LaPeBBiOM), Federal University of Pelotas, Av. Eliseu Maciel, Campus Universitário, S/n, Capão do Leão, CEP 96160-000, RS, Brazil
| | - Andrei Vallerão Igansi
- School of Chemistry and Food, Federal University of Rio Grande, Av. Itália, Km 8, S/n, Carreiros, CEP 96203-000, Rio Grande, RS, Brazil
| | - Tito Roberto Sant'Anna Cadaval
- School of Chemistry and Food, Federal University of Rio Grande, Av. Itália, Km 8, S/n, Carreiros, CEP 96203-000, Rio Grande, RS, Brazil
| | - Robson Andreazza
- Science and Engineering of Materials Postgraduate Program, Federal University of Pelotas, R. Gomes Carneiro 01, CEP 96010-610, Pelotas, RS, Brazil
- Environmental Sciences Postgraduate Program, Federal University of Pelotas. R. Benjamin Constant 989, CEP 96010-020, Pelotas, RS, Brazil
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Trassante CM, Barboza VDS, Rocha LDS, Correa PM, Luchese C, Wilhelm EA, Pereira de Pereira CM, Baldissera MD, Rech VC, Giongo JL, de Almeida Vaucher R. Detection of SARS-CoV-2 virus using an alternative molecular method and evaluation of biochemical, hematological, inflammatory, and oxidative stress in healthcare professionals. Microb Pathog 2021; 158:104975. [PMID: 34022358 PMCID: PMC8132506 DOI: 10.1016/j.micpath.2021.104975] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 05/11/2021] [Accepted: 05/13/2021] [Indexed: 01/08/2023]
Abstract
In early December 2019, an outbreak of coronavirus disease 2019 caused by a new strain of coronavirus (SARS-CoV-2), occurred in the city of Wuhan, Hubei Province, China. On January 30, 2020, the World Health Organization (WHO) declared the outbreak a public health emergency of international concern. Since then, frontline healthcare professionals have been experiencing extremely stressful situations and damage to their physical and mental health. These adverse conditions cause stress and biochemical, hematological, and inflammatory changes, as well as oxidative damage, and could be potentially detrimental to the health of the individual. The study population consisted of frontline health professionals working in BHU in a city in southern Brazil. Among the 45 participants, two were infected with the SARS-CoV-2 virus and were diagnosed using immunochromatographic tests such as salivary RT-LAMP and qRT-PCR. We also evaluated biochemical, hematological, inflammatory, and oxidative stress markers in the participants. The infected professionals (CoV-2-Prof) showed a significant increase in the levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), cholesterol, lactic dehydrogenase, lymphocytes, and monocytes. In this group, the levels of uric acid, triglycerides, leukocytes, neutrophils, hemoglobin, hematocrit, and platelets decreased. In the group of uninfected professionals (NoCoV-2-Prof), significant increase in HDL levels and the percentages of eosinophils and monocytes, was observed. Further, in this group, uric acid, LDH, triglyceride, and cholesterol levels, and the hematocrit count and mean corpuscular volume were significantly reduced. Both groups showed significant inflammatory activity with changes in the levels of C-reactive protein and mucoprotein. The NoCoV-2-Prof group showed significantly elevated plasma cortisol levels. To our kowledge, this study is the first to report the use of the RT-LAMP method with the saliva samples of health professionals, to evalute of SARS-CoV-2.
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Affiliation(s)
- Carla Marcelino Trassante
- Laboratório de Pesquisa Em Bioquímica e Biologia Molecular de Micro-organismos (LaPeBBioM), Grupo de Pesquisa Em Bioquímica e Biologia Molecular de Micro-organismos, Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA), Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil
| | - Victor Dos Santos Barboza
- Laboratório de Pesquisa Em Bioquímica e Biologia Molecular de Micro-organismos (LaPeBBioM), Grupo de Pesquisa Em Bioquímica e Biologia Molecular de Micro-organismos, Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA), Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil
| | - Liziane Dos Santos Rocha
- Laboratório de Pesquisa Em Bioquímica e Biologia Molecular de Micro-organismos (LaPeBBioM), Grupo de Pesquisa Em Bioquímica e Biologia Molecular de Micro-organismos, Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA), Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil
| | - Paulo Maximiliano Correa
- Curso de Farmácia, Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA), Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil
| | - Cristiane Luchese
- Laboratório de Pesquisa Em Farmacologia Bioquímica (LaFarBio), Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA), Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil
| | - Ethel Antunes Wilhelm
- Laboratório de Pesquisa Em Farmacologia Bioquímica (LaFarBio), Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA), Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil
| | - Claudio Martin Pereira de Pereira
- Laboratório de Lipidômica e Bio-orgânica, Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA), Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil
| | - Matheus Dellaméa Baldissera
- Programa de Pós-Graduação Em Farmacologia, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Virginia Cielo Rech
- Programa de Pós-Graduação Em Nanociências, Universidade Franciscana (UFN), Santa Maria, RS, Brazil
| | - Janice Luehring Giongo
- Laboratório de Pesquisa Em Bioquímica e Biologia Molecular de Micro-organismos (LaPeBBioM), Grupo de Pesquisa Em Bioquímica e Biologia Molecular de Micro-organismos, Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA), Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil
| | - Rodrigo de Almeida Vaucher
- Laboratório de Pesquisa Em Bioquímica e Biologia Molecular de Micro-organismos (LaPeBBioM), Grupo de Pesquisa Em Bioquímica e Biologia Molecular de Micro-organismos, Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA), Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil.
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Cerveira MM, Vianna HS, Ferrer EMK, da Rosa BN, de Pereira CMP, Baldissera MD, Lopes LQS, Rech VC, Giongo JL, de Almeida Vaucher R. Bioprospection of novel synthetic monocurcuminoids: Antioxidant, antimicrobial, and in vitro cytotoxic activities. Biomed Pharmacother 2020; 133:111052. [PMID: 33378958 DOI: 10.1016/j.biopha.2020.111052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 11/06/2020] [Accepted: 11/19/2020] [Indexed: 01/01/2023] Open
Abstract
The irrational use of medications has increased the incidence of microbial infections, which are a major threat to public health. Moreover, conventional therapeutic strategies are starting to become ineffective to treat these infections. Hence, there is a need to develop and characterize novel antimicrobial compounds. Phytochemicals are emerging as a safe and accessible alternative to conventional therapeutics for treating infectious diseases. Curcumin is extracted from the dried rhizome of the spice turmeric (Curcuma longa (Zingiberaceae)). However, the bioavailability of curcumin is low owing to its lipophilic property and thus has a low therapeutic efficacy in the host. A previous study synthesized structural variants of curcumin, which are called monocurcuminoids (CNs). CNs are synthesized based on the chemical structure of curcumin with only one methyl bridge. The biological activities of four previously synthesized CNs (CN59, CN63, CN67, and CN77), curcumin, and turmeric powder were examined in this study. Gas chromatography-tandem mass spectrometry analysis of curcumin and turmeric powder revealed similar peaks, which indicated the presence of curcumin in turmeric powder. The antioxidant activity of the test compounds was evaluated using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) assays. The ABTS radical scavenging activities of the test compounds were similar to those of vitamin C. The minimum inhibitory concentration (MIC) values of the test compounds against seven microbial strains were in the range of 4.06-150 μg/mL. The MIC value was equal to minimum bactericidal concentration value for CN63 (150 μg/mL) and CN67 (120 μg/mL) against Staphylococcus aureus. The treatment combination of CN77 (8.75 or 4.37 μg/mL) and turmeric powder (9.37 or 4.68 μg/mL) exerted synergistic growth-inhibiting effects on Aeromonas hydrophila, Candida albicans, and Pseudomonas aeruginosa. Photodynamic therapy using 2X MIC of CN59 decreased the growth of Enterococcus faecalis by 4.18-fold compared to the control group and completely inhibited the growth of Escherichia coli. The results of the hemolytic assay revealed that the test compounds were not cytotoxic with half-maximal inhibitory concentration values ranging from 49.65-130.9 μM. The anticoagulant activity of most compounds was comparable to that of warfarin but higher than that of heparin. This indicated that these compounds target the intrinsic coagulation pathway. These results demonstrated that these CNs are a safe and promising alternative for curcumin.
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Affiliation(s)
- Milena Mattes Cerveira
- Laboratory of Biochemistry Research and Molecular Biology of Microorganisms (LaPeBBiOM), Universidade Federal de Pelotas, RS, Brazil
| | - Helena Silveira Vianna
- Laboratory of Biochemistry Research and Molecular Biology of Microorganisms (LaPeBBiOM), Universidade Federal de Pelotas, RS, Brazil
| | - Edila Maria Kickhofel Ferrer
- Laboratory of Biochemistry Research and Molecular Biology of Microorganisms (LaPeBBiOM), Universidade Federal de Pelotas, RS, Brazil
| | - Bruno Nunes da Rosa
- Lipidomics and Bio-organic Laboratory, Universidade Federal de Pelotas, RS, Brazil
| | | | | | | | - Virginia Cielo Rech
- Post graduate Program in Nanoscience, Universidade Franciscana, Santa Maria, RS, Brazil
| | - Janice Luehring Giongo
- Laboratory of Biochemistry Research and Molecular Biology of Microorganisms (LaPeBBiOM), Universidade Federal de Pelotas, RS, Brazil
| | - Rodrigo de Almeida Vaucher
- Laboratory of Biochemistry Research and Molecular Biology of Microorganisms (LaPeBBiOM), Universidade Federal de Pelotas, RS, Brazil.
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Salbego J, Seben D, Sippert LR, Gressler LT, Arruda da Cunha J, Zanella R, de Almeida Vaucher R, Marchesan E, Baldisserotto B, Loro VL, Golombieski JI. Toxicological response of silver catfish ( Rhamdia quelen) after acute exposure to a commercial insecticide containing thiamethoxam. J Environ Sci Health B 2020; 55:749-755. [PMID: 32558613 DOI: 10.1080/03601234.2020.1782115] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
This study assessed the hematological, enzymatic and osmoregulatory responses of silver catfish (Rhamdia quelen) exposed to sublethal concentrations (1.125 and 3.750 µg/L) of a commercial thiamethoxam-containing insecticide used on rice crops. Groups of 6 fish per tank (in triplicate, n = 3, total 54 fish) were exposed for up to 96 h to different concentrations of the compound. After this period, fish were placed in clean water for 48 h. Two fish from each tank (6 per treatment) that had been exposed to the insecticide for 24 h were anesthetized with eugenol and blood was collected to evaluate hematological and biochemical parameters. Blood, liver and muscle were collected for determination of metabolic parameters, plasma cortisol, Cl-, Na+ and K+ levels and H+-ATPase and Na+/K+-ATPase activity in the gill. H+-ATPase activity was higher in fish exposed to 1.125 µg/L insecticide at 24 h compared to control (0.0 µg/L). Differences in cortisol levels were evidenced throughout the experimental period. These results indicated that exposure to the insecticide changed the hematological, biochemical and metabolic profile of the animals, suggesting concern about environmental safety. Therefore, we discourage the use of this pesticide in areas that come into contact with water bodies inhabited by fish.
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Affiliation(s)
- Joseânia Salbego
- Department of Physiology and Pharmacology, UFSM, Santa Maria, RS, Brazil
| | - Débora Seben
- Department of Environmental Engineering and Technology, UFSM - Universidade Federal de Santa Maria, Frederico Westphalen, RS, Brazil
| | - Leticia Raquel Sippert
- Department of Environmental Engineering and Technology, UFSM - Universidade Federal de Santa Maria, Frederico Westphalen, RS, Brazil
| | | | | | - Renato Zanella
- Department of Biochemistry and Molecular Biology, UFSM, Santa Maria, RS, Brazil
| | - Rodrigo de Almeida Vaucher
- Center of Chemical, Pharmaceutical and Food Sciences, UFPel - Universidade Federal de Pelotas, Capão do Leão, RS, Brazil
| | - Enio Marchesan
- Department of Plant Science, UFSM, Santa Maria, RS, Brazil
| | | | - Vania Lucia Loro
- Department of Biochemistry and Molecular Biology, UFSM, Santa Maria, RS, Brazil
| | - Jaqueline Ineu Golombieski
- Department of Environmental Engineering and Technology, UFSM - Universidade Federal de Santa Maria, Frederico Westphalen, RS, Brazil
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11
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Nishihira VSK, Rubim AM, Brondani M, Dos Santos JT, Pohl AR, Friedrich JF, de Lara JD, Nunes CM, Feksa LR, Simão E, de Almeida Vaucher R, Durruthy MG, Laporta LV, Rech VC. In vitro and in silico protein corona formation evaluation of curcumin and capsaicin loaded-solid lipid nanoparticles. Toxicol In Vitro 2019; 61:104598. [PMID: 31299314 DOI: 10.1016/j.tiv.2019.104598] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 04/25/2019] [Accepted: 07/07/2019] [Indexed: 11/16/2022]
Abstract
Nanotechnology has been an important tool for the production of nanoparticles with controlled release of drugs for therapeutic applications. Here, we produced solid lipid nanoparticles (SLN) loaded with curcumin and capsaicin (NCC) following the overarching goals of green chemistry. Currently, besides evaluating the composition, and size of these, it is necessary to understand the interactions between nanoparticles and the biomolecules present in the biological medium. For this, assays were conducted in order to evaluate the potential formation of the protein 'corona', and to better understand the results obtained in vitro, we also performed an interaction study, in silico, between the NCC components and the main serum protein, albumin. In the first hour of contact between the NCC and the culture medium showed fluctuation in the diameter of the NCC. However, after 24 and 48 h of the incubation period, all NCC concentrations showed an increase in size, which can be attributed to plasma protein adsorption. Since, hard corona takes a few seconds, while the soft corona can be formed in minutes up to a few hours. On the other hand, best docking binding-poses of interaction for the formed docking complexes evaluated suggest interactions following the docking affinity like free energy FEB (Tween 80-bovine serum albumin) ≈ FEB (Span 80-bovine serum albumin) showing a pharmacodynamic pattern based in non-covalent hydrophobic interactions with the bovine serum albumin binding-site. Our in silico results clarify and reinforce our in vitro findings of corona formation, which represents the real interaction with cell membranes in vivo.
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Affiliation(s)
| | | | - Morgana Brondani
- Graduação em Biomedicina, Universidade Franciscana, Santa Maria, Rio Grande do Sul, Brazil
| | | | - Ariane Ribas Pohl
- Pós-Graduação em Nanociências, Universidade Franciscana, Santa Maria, Rio Grande do Sul, Brazil
| | | | - Jéssica Dotto de Lara
- Graduação em Biomedicina, Universidade Franciscana, Santa Maria, Rio Grande do Sul, Brazil
| | | | - Luciane Rosa Feksa
- Pós-Graduação em Biomedicina Estética, Núcleo de Estudos em Estética Ana Carolina Puga, São Paulo, Brazil
| | - Eder Simão
- Pós-Graduação em Nanociências, Universidade Franciscana, Santa Maria, Rio Grande do Sul, Brazil
| | - Rodrigo de Almeida Vaucher
- Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | | | | | - Virginia Cielo Rech
- Pós-Graduação em Nanociências, Universidade Franciscana, Santa Maria, Rio Grande do Sul, Brazil
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12
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Lopes LQS, de Almeida Vaucher R, Giongo JL, Gündel A, Santos RCV. Characterisation and anti-biofilm activity of glycerol monolaurate nanocapsules against Pseudomonas aeruginosa. Microb Pathog 2019; 130:178-185. [PMID: 30862561 DOI: 10.1016/j.micpath.2019.03.007] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 03/03/2019] [Accepted: 03/06/2019] [Indexed: 01/20/2023]
Abstract
Pseudomonas aeruginosa is a ubiquitous microorganism that commonly causes hospital-acquired infections, including pneumonia, bloodstream and urinary tract infections and it is well known for chronically colonising the respiratory tract of patients with cystic fibrosis, causing severe intermittent exacerbation of the condition. P. aeruginosa may appear in the free form cell but also grows in biofilm communities adhered to a surface. An alternative to conventional antimicrobial agents are nanoparticles that can act as carriers for antibiotics and other drugs. In this context, the study aimed to characterise and verify the anti-biofilm potential of GML Nanocapsules against P. aeruginosa. The nanocapsules showed a mean diameter of 190.7 nm, polydispersion index of 0.069, the zeta potential of -23.3 mV. The microdilution test showed a MIC of 62.5 μg/mL to GML and 15.62 μg/mL to GML Nanocapsules. The anti-biofilm experiments demonstrated the significant reduction of biomass, proteins, polysaccharide and viable P. aeruginosa in biofilm treated with GML Nanocapsules while the free GML did not cause an effect. The AFM images showed a decrease in a biofilm which received GML. The positive results suggest an alternative for the public health trouble related to infections associated with biofilm.
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Affiliation(s)
- Leonardo Quintana Soares Lopes
- Post Graduate Program in Nanosciences, Universidade Franciscana, Santa Maria, Brazil; Microbiology and Parasitology Department, Health Sciences Center, Universidade Federal de Santa Maria, Santa Maria, Brazil.
| | - Rodrigo de Almeida Vaucher
- Laboratory of Research in Biochemistry and Molecular Biology of Microorganisms, Post Graduate Program in Biochemistry and Bioprospecting, Universidade Federal de Pelotas, Capão Do Leão, Brazil
| | | | | | - Roberto Christ Vianna Santos
- Post Graduate Program in Nanosciences, Universidade Franciscana, Santa Maria, Brazil; Microbiology and Parasitology Department, Health Sciences Center, Universidade Federal de Santa Maria, Santa Maria, Brazil
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da Cunha JA, Bandeira Junior G, da Silva EG, de Ávila Scheeren C, Fausto VP, Salbego J, de Almeida Vaucher R, de Vargas AC, Baldisserotto B. The survival and hepatic and muscle glucose and lactate levels of Rhamdia quelen inoculated with Aeromonas hydrophila and treated with terpinen-4-ol, carvacrol or thymol. Microb Pathog 2019; 127:220-224. [DOI: 10.1016/j.micpath.2018.12.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 11/28/2018] [Accepted: 12/04/2018] [Indexed: 11/25/2022]
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14
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da Cunha JA, de Ávila Scheeren C, Fausto VP, de Melo LDW, Henneman B, Frizzo CP, de Almeida Vaucher R, Castagna de Vargas A, Baldisserotto B. The antibacterial and physiological effects of pure and nanoencapsulated Origanum majorana essential oil on fish infected with Aeromonas hydrophila. Microb Pathog 2018; 124:116-121. [DOI: 10.1016/j.micpath.2018.08.040] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 03/02/2018] [Accepted: 08/18/2018] [Indexed: 10/28/2022]
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15
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da Silva Gündel S, de Souza ME, Quatrin PM, Klein B, Wagner R, Gündel A, Vaucher RDA, Santos RCV, Ourique AF. Nanoemulsions containing Cymbopogon flexuosus essential oil: Development, characterization, stability study and evaluation of antimicrobial and antibiofilm activities. Microb Pathog 2018; 118:268-276. [DOI: 10.1016/j.micpath.2018.03.043] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 03/14/2018] [Accepted: 03/23/2018] [Indexed: 10/17/2022]
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17
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de Souza ME, Clerici DJ, Verdi CM, Fleck G, Quatrin PM, Spat LE, Bonez PC, Santos CFD, Antoniazzi RP, Zanatta FB, Gundel A, Martinez DST, de Almeida Vaucher R, Santos RCV. Antimicrobial activity of Melaleuca alternifolia nanoparticles in polymicrobial biofilm in situ. Microb Pathog 2017; 113:432-437. [PMID: 29162482 DOI: 10.1016/j.micpath.2017.11.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 10/31/2017] [Accepted: 11/09/2017] [Indexed: 10/18/2022]
Abstract
Microbial biofilms represent a challenge in the treatment of infections, due to the low efficacy of the antimicrobials. This study evaluated the antimicrobial effect of nanoparticles of Melaleuca alternifolia (TTO) in dental biofilm. Thirty-eight volunteers used an oral device in situ in situ including four bovine enamel specimens for 07 days. From the fifth day four solutions were applied randomly for each specimen: Physiological Saline Solution (0.85% NaCl) (C+), Chlorhexidine 0.12% (CHX), M. alternifolia oil 0.3% (TTO), and a nanoparticle solution of 0.3% M. alternifolia oil (NPTTO). The nanoparticles of TTO were characterized for pH, IPD, medium size, zeta potential and Transmission Electron Microscopy. Antimicrobial activity was evaluated by viable microorganisms count and the structure of the biofilm by atomic force microscopy. The NPTTO presented pH 6.4, particle diameter of 197.9 ± 1 nm, polydispersion index of 0.242 ± 0.005, zeta potential of -7.12 mV and ±0:27 spherical shape. The C+ resulted in 100% of bacterial vitality, while CHX, TTO and NPTTO showed 34.2%, 51.4% and 25.8%, respectively. The AFM images showed biofilms with an average roughness of 350 nm for C+, 275 nm for CHX, 500 nm for TTO and 100 nm for NPTTO. The NPTTO demonstrated excellent antimicrobial activity in the biofilm formed in situ and will possibly be used in future for the treatment/prevention of oral biofilms.
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Affiliation(s)
- Márcia Ebling de Souza
- Laboratory of Microbiological Research, Centro Universitário Franciscano, Santa Maria, Brazil; Laboratory of Nanotechnology, Post Graduate Program of Nanosciences, Centro Universitário Franciscano, Santa Maria, Brazil
| | - Dariane Jornada Clerici
- Laboratory of Microbiological Research, Centro Universitário Franciscano, Santa Maria, Brazil; Laboratory of Nanotechnology, Post Graduate Program of Nanosciences, Centro Universitário Franciscano, Santa Maria, Brazil; Department of Microbiology and Parasitology, Federal University of Santa Maria, Santa Maria, Brazil
| | - Camila Marina Verdi
- Department of Microbiology and Parasitology, Federal University of Santa Maria, Santa Maria, Brazil
| | - Gabriela Fleck
- Department of Odontology, Centro Universitário Franciscano, Santa Maria, Brazil
| | - Priscilla Maciel Quatrin
- Laboratory of Microbiological Research, Centro Universitário Franciscano, Santa Maria, Brazil; Laboratory of Nanotechnology, Post Graduate Program of Nanosciences, Centro Universitário Franciscano, Santa Maria, Brazil
| | - Luana Ebling Spat
- Department of Odontology, Centro Universitário Franciscano, Santa Maria, Brazil
| | - Pauline Cordenonsi Bonez
- Graduate Program in Pharmaceutical Sciences, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | | | | | | | - André Gundel
- Physic School - Federal University of Pampa - Bagé - RS - Brazil, Universidade Federal do Pampa, Brazil
| | | | - Rodrigo de Almeida Vaucher
- Laboratory of Microbiological Research, Centro Universitário Franciscano, Santa Maria, Brazil; Laboratory of Nanotechnology, Post Graduate Program of Nanosciences, Centro Universitário Franciscano, Santa Maria, Brazil
| | - Roberto Christ Vianna Santos
- Laboratory of Nanotechnology, Post Graduate Program of Nanosciences, Centro Universitário Franciscano, Santa Maria, Brazil; Department of Microbiology and Parasitology, Federal University of Santa Maria, Santa Maria, Brazil.
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Bonez PC, Rossi GG, Bandeira JR, Ramos AP, Mizdal CR, Agertt VA, Dalla Nora ESS, de Souza ME, dos Santos Alves CF, dos Santos FS, Gündel A, de Almeida Vaucher R, Santos RCV, de Campos MMA. Anti-biofilm activity of A22 ((S-3,4-dichlorobenzyl) isothiourea hydrochloride) against Pseudomonas aeruginosa: Influence on biofilm formation, motility and bioadhesion. Microb Pathog 2017; 111:6-13. [DOI: 10.1016/j.micpath.2017.08.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 08/08/2017] [Accepted: 08/08/2017] [Indexed: 10/19/2022]
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19
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Quatrin PM, Verdi CM, de Souza ME, de Godoi SN, Klein B, Gundel A, Wagner R, de Almeida Vaucher R, Ourique AF, Santos RCV. Antimicrobial and antibiofilm activities of nanoemulsions containing Eucalyptus globulus oil against Pseudomonas aeruginosa and Candida spp. Microb Pathog 2017; 112:230-242. [PMID: 28970174 DOI: 10.1016/j.micpath.2017.09.062] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 09/27/2017] [Accepted: 09/28/2017] [Indexed: 11/26/2022]
Abstract
Candida species are the main responsible microorganisms for causing fungal infections worldwide, and Candida albicans is most frequently associated with infectious processes. Pseudomonas aeruginosa is a gram-negative bacterium commonly found in immunocompromised patients. The infection persistence caused by these microorganisms is often related to antimicrobial resistance and biofilm formation. In this context, the objective of the present study was to prepare and characterize nanoemulsions containing Eucalyptus globulus oil and to verify its antimicrobial and antibiofilm activities against P. aeruginosa and Candida spp. The nanoemulsions had a size of approximately 76 nm, a polydispersity index of 0.22, a zeta potential of - 9,42 mV and a pH of approximately 5.0. The E. globulus oil was characterized by gas chromatography, being possible to observe its main components, such as 1-8-Cineol (75.8%), p- Cymene (7.5%), α-Pinene (7.4%) and Limonene (6.4%). The antimicrobial activity of the nanoemulsion was determined from the macrodilution tests and the cell viability curve, where the minimum fungicidal concentration of 0.7 mg/mL for C. albicans and 1.4 mg/mL for C. tropicalis and C. glabrata were obtained. However, the nanoemulsions did not present antimicrobial activity against P. aeruginosa, since it contains only 5% of the oil, being ineffective for this microorganism. The nanoencapsulated oil action against the formed biofilm was evaluated by atomic force microscopy and calcofluor staining, and the nanoemulsion was more efficient for two of the three Candida species when compared to free oil.
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Affiliation(s)
- Priscilla Maciel Quatrin
- Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Programa de Pós-Graduação em Nanociências, Centro Universitário Franciscano, Santa Maria, Brazil
| | - Camila Marina Verdi
- Programa de Pós-Graduação em Ciências Farmacêuticas, Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Márcia Ebling de Souza
- Programa de Pós-Graduação em Nanociências, Centro Universitário Franciscano, Santa Maria, Brazil
| | - Samantha Nunes de Godoi
- Programa de Pós-Graduação em Nanociências, Centro Universitário Franciscano, Santa Maria, Brazil
| | - Bruna Klein
- Departamento de Tecnologia e Ciência dos Alimentos, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | | | - Roger Wagner
- Departamento de Tecnologia e Ciência dos Alimentos, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | | | - Aline Ferreira Ourique
- Programa de Pós-Graduação em Nanociências, Centro Universitário Franciscano, Santa Maria, Brazil
| | - Roberto Christ Vianna Santos
- Programa de Pós-Graduação em Nanociências, Centro Universitário Franciscano, Santa Maria, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas, Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Maria, Santa Maria, Brazil.
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Giongo JL, de Almeida Vaucher R, Sagrillo MR, Vianna Santos RC, Duarte MM, Rech VC, Soares Lopes LQ, Beatriz da Cruz I, Tatsch E, Moresco RN, Gomes P, Luchese C, Steppe M. Anti-inflammatory effect of geranium nanoemulsion macrophages induced with soluble protein of Candida albicans. Microb Pathog 2017; 110:694-702. [DOI: 10.1016/j.micpath.2017.01.056] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 01/02/2017] [Accepted: 01/03/2017] [Indexed: 11/24/2022]
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21
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Lopes LQS, Santos CG, de Almeida Vaucher R, Raffin RP, da Silva AS, Baretta D, Maccari AP, Giombelli LCDD, Volpato A, Arruda J, de Ávila Scheeren C, Baldisserotto B, Santos RCV. Ecotoxicology of Glycerol Monolaurate nanocapsules. Ecotoxicol Environ Saf 2017; 139:73-77. [PMID: 28110048 DOI: 10.1016/j.ecoenv.2017.01.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 12/01/2016] [Accepted: 01/10/2017] [Indexed: 06/06/2023]
Abstract
Glycerol Monolaurate (GML) is a compound with known antimicrobial potential, however it is not much used due to its low solubility in water and high melting point. The nanoencapsulation of some drugs offers several advantages such as improved stability and solubility in water. The present study aimed to produce, characterize, and evaluate the ecotoxicity of GML nanocapsules. The nanocapsules were produced and presented a mean diameter of 210nm, polydispersity index of 0.044, and zeta potential of -23.4mV. The electron microscopy images showed the nanometric size and spherical shape. The assay in soil showed that GML has a high toxicity while the GML nanocapsules showed decreased toxic effects. Nanostructuration also protected the Rhamdia quelen against the toxic effects of GML. Concluding, the formulation shows positive results and is useful to predict the success of development besides not damaging the soil.
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Affiliation(s)
- Leonardo Q S Lopes
- Laboratory of Microbiology Research, Centro Universitário Franciscano, Santa Maria, Brazil; Post-Graduate Program in Nanosciences, Centro Universitário Franciscano, Santa Maria, Brazil.
| | - Cayane G Santos
- Post-Graduate Program in Nanosciences, Centro Universitário Franciscano, Santa Maria, Brazil
| | - Rodrigo de Almeida Vaucher
- Center of chemical, pharmaceutical and food sciences, Universidade Federal de Pelotas, Capão do Leão, Brazil
| | - Renata P Raffin
- Post-Graduate Program in Nanosciences, Centro Universitário Franciscano, Santa Maria, Brazil
| | - Aleksandro S da Silva
- Department of Animal Science, Universidade do Estado de Santa Catarina, Chapecó, Brazil
| | - Dilmar Baretta
- Department of Animal Science, Universidade do Estado de Santa Catarina, Chapecó, Brazil
| | - Ana Paula Maccari
- Department of Animal Science, Universidade do Estado de Santa Catarina, Chapecó, Brazil
| | | | - Andreia Volpato
- Department of Animal Science, Universidade do Estado de Santa Catarina, Chapecó, Brazil
| | - Jessyka Arruda
- Departament of Fisiology and Farmacology, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | | | - Bernardo Baldisserotto
- Departament of Fisiology and Farmacology, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Roberto C V Santos
- Laboratory of Microbiology Research, Centro Universitário Franciscano, Santa Maria, Brazil; Post-Graduate Program in Nanosciences, Centro Universitário Franciscano, Santa Maria, Brazil; Department of Microbiology and Parasitology, Universidade Federal de Santa Maria, Santa Maria, Brazil
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22
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Bottari NB, Lopes LQS, Pizzuti K, Filippi Dos Santos Alves C, Corrêa MS, Bolzan LP, Zago A, de Almeida Vaucher R, Boligon AA, Giongo JL, Baldissera MD, Santos RCV. Antimicrobial activity and phytochemical characterization of Carya illinoensis. Microb Pathog 2017; 104:190-195. [PMID: 28126664 DOI: 10.1016/j.micpath.2017.01.037] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 01/02/2017] [Accepted: 01/21/2017] [Indexed: 11/25/2022]
Abstract
Carya illinoensis is a widespread species, belonging to the Juglandaceae family, commonly known as Pecan. Popularly, the leaves have been used in the treatment of smoking as a hypoglycemic, cleansing, astringent, keratolytic, antioxidant, and antimicrobial agent. The following research aimed to identify for the first time the phytochemical compounds present in the leaves of C. illinoensis and carry out the determination of antimicrobial activity of aqueous and ethanolic extracts. The antimicrobial activity was tested against 20 microorganisms by determining the minimum inhibitory concentration (MIC). Phenolic acids (gallic acid and ellagic acid), flavonoids (rutin), and tannins (catechins and epicatechins) were identified by HPLC-DAD and may be partially responsible for the antimicrobial activity against Gram-positive, Gram-negative, and yeast. The results showed MIC values between 25 mg/mL and 0.78 mg/mL. The extracts were also able to inhibit the production of germ tubes by Candida albicans.
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Affiliation(s)
- Nathieli Bianchin Bottari
- Laboratory of Microbiology Research, Centro Universitário Franciscano, Santa Maria, RS, Brazil; Laboratory of Pharmacognosy, Centro Universitário Franciscano, Santa Maria, RS, Brazil
| | | | - Kauana Pizzuti
- Laboratory of Microbiology Research, Centro Universitário Franciscano, Santa Maria, RS, Brazil
| | | | - Marcos Saldanha Corrêa
- Laboratory of Microbiology Research, Centro Universitário Franciscano, Santa Maria, RS, Brazil
| | - Leandro Perger Bolzan
- Laboratory of Microbiology Research, Centro Universitário Franciscano, Santa Maria, RS, Brazil
| | - Adriana Zago
- Laboratory of Pharmacognosy, Centro Universitário Franciscano, Santa Maria, RS, Brazil
| | | | - Aline Augusti Boligon
- Laboratory of Phytochemistry, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Janice Luehring Giongo
- Laboratory of Pharmaceutical Technology, Universidade Regional Integrada do Alto Uruguai (URI), Santiago, Rio Grande do Sul, Brazil
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Souza CDF, Baldissera MD, Salbego J, Lopes JM, Vaucher RDA, Mourão RHV, Caron BO, Heinzmann BM, Silva LVFD, Baldisserotto B. Physiological responses of Rhamdia quelen (Siluriformes: Heptapteridae) to anesthesia with essential oils from two different chemotypes of Lippia alba. Neotrop ichthyol 2017. [DOI: 10.1590/1982-0224-20160083] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
ABSTRACT The aim of this study was to evaluate if Lippia alba has different chemotypes according to the chemical composition of the essential oil (EO) considering collection site, and if the EO may have different effects on blood and plasma parameters in silver catfish, Rhamdia quelen, during and immediately after anesthesia. The citral (EO-C) and linalool (EO-L) chemotypes were identified, and both presented similar anesthetic effects for silver catfish. Fish were exposed to two concentrations of each EO, which induced slow and fast anesthesia (100 and 300 µL L-1, respectively). Blood ions did not change at any time of anesthesia induction and recovery and, therefore, the electrolyte balance was not altered. Blood gases oscillated through all exposure and recovery times, but there was an increase in pO2 after 10 min recovery in fish anesthetized with EO-C. Glucose increased in fish exposed to both EOs when compared with the control group. Overall, exposure to both EOs (except 100 µL L-1 EO-L at most times) reduced plasma cortisol levels compared to the control and/or ethanol groups. However, as plasma creatinine levels in fish anesthetized with EO-C were higher than control fish, the use of EO-L is preferable.
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Giongo JL, de Almeida Vaucher R, Fausto VP, Quatrin PM, Lopes LQS, Santos RCV, Gündel A, Gomes P, Steppe M. Anti- Candida activity assessment of Pelargonium graveolens oil free and nanoemulsion in biofilm formation in hospital medical supplies. Microb Pathog 2016; 100:170-178. [DOI: 10.1016/j.micpath.2016.08.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 07/20/2016] [Accepted: 08/04/2016] [Indexed: 11/27/2022]
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Lopes LQ, Santos CG, de Almeida Vaucher R, Gende L, Raffin RP, Santos RC. Evaluation of antimicrobial activity of glycerol monolaurate nanocapsules against American foulbrood disease agent and toxicity on bees. Microb Pathog 2016; 97:183-8. [DOI: 10.1016/j.micpath.2016.05.014] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 05/17/2016] [Accepted: 05/19/2016] [Indexed: 11/30/2022]
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Golombieski JI, Sutili FJ, Salbego J, Seben D, Gressler LT, da Cunha JA, Gressler LT, Zanella R, Vaucher RDA, Marchesan E, Baldisserotto B. Imazapyr+imazapic herbicide determines acute toxicity in silver catfish Rhamdia quelen. Ecotoxicol Environ Saf 2016; 128:91-99. [PMID: 26896896 DOI: 10.1016/j.ecoenv.2016.02.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 02/04/2016] [Accepted: 02/05/2016] [Indexed: 06/05/2023]
Abstract
Imazapyr (IMY) and imazapic (IMI) are imidazolinone herbicides which have been associated in a commercial formulation (Kifix(®)). To date, there are no studies on the toxicity of an IMY+IMI herbicide in fish. This work aimed to assess the acute toxicity (24 and 96 h) of IMY+IMI (0, 0.488 and 4.88 µg/L) towards Rhamdia quelen through hematological, biochemical, immunological, ionoregulatory and enzymatic indexes. Red blood cell count was lower at 4.88 than at 0.488 µg/L (24 and 96 h); mean corpuscular volume was lower than control at both concentrations (24 h) and at 0.488 µg/L (96 h); lymphocytes declined at 4.88 µg/L comparing to control (96 h); and monocytes increased at 4.88 µg/L (96 h) in comparison with the respective control and with 4.88 µg/L at 24h. Aspartate aminotransferase was higher at 0.488 µg/L (96 h) than the respective control and the respective concentration at 24 h; uric acid reduced at 4.88 µg/L comparing with 0.488 µg/L (96 h); and cortisol was lower at 4.88 µg/L compared to 0.488 µg/L and control (96 h). Herbicide exposure lowered plasma bactericidal activity at both concentrations (24 h) and at 0.488 µg/L (96 h); and plasma complement activity declined at 4.88 µg/L comparing with 0.488 µg/L and control (96 h), and was lower at all concentrations at 96 h than at 24 h. Plasma K(+) levels were higher at 4.88µg/L than in the remaining groups (24 and 96h); and Na(+) levels decreased at 4.88 µg/L compared to control (96 h). Na(+)/K(+)-ATPase and H(+)-ATPase activities in gills were lower at 4.88 µg/L comparing with control (24 h) and with the respective concentration at 96 h; and AChE activity in brain was higher at 0.488 and 4.88 µg/L than control (24 h) and the respective concentrations at 96 h, while in muscle it was higher at 0.488 and 4.88 µg/L than control (96 h) and the respective concentrations at 24 h. The present findings demonstrate that, despite IMY+IMI targets the animal-absent AHAS enzyme, such formulation displayed an acute toxic effect upon R. quelen homeostasis by impacting on vital functions such as immune defense, metabolism, ionoregulation and neurotransmission.
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Affiliation(s)
- Jaqueline Ineu Golombieski
- Department of Agricultural and Environmental Sciences, Federal University of Santa Maria (UFSM)/CESNORS, Linha 7 de Setembro, BR 386, Km 40, Frederico Westphalen, 98400-000 RS, Brazil.
| | - Fernando Jonas Sutili
- Department of Physiology and Pharmacology, UFSM, Avenida Roraima 1000, Santa Maria (SM), 97105-900 RS, Brazil.
| | - Joseânia Salbego
- Department of Physiology and Pharmacology, UFSM, Avenida Roraima 1000, Santa Maria (SM), 97105-900 RS, Brazil.
| | - Débora Seben
- Department of Agricultural and Environmental Sciences, Federal University of Santa Maria (UFSM)/CESNORS, Linha 7 de Setembro, BR 386, Km 40, Frederico Westphalen, 98400-000 RS, Brazil.
| | - Luciane Tourem Gressler
- Department of Physiology and Pharmacology, UFSM, Avenida Roraima 1000, Santa Maria (SM), 97105-900 RS, Brazil.
| | - Jéssyka Arruda da Cunha
- Department of Physiology and Pharmacology, UFSM, Avenida Roraima 1000, Santa Maria (SM), 97105-900 RS, Brazil.
| | | | - Renato Zanella
- Department of Chemistry, UFSM, Avenida Roraima 1000, SM, 97105-900 RS, Brazil.
| | - Rodrigo de Almeida Vaucher
- Graduate Program in Nanoscience, Franciscan University, Rua dos Andradas 1614, SM, 97010-032 RS, Brazil.
| | - Enio Marchesan
- Department of Plant Science, UFSM, Avenida Roraima 1000, SM, 97105-900 RS, Brazil.
| | - Bernardo Baldisserotto
- Department of Physiology and Pharmacology, UFSM, Avenida Roraima 1000, Santa Maria (SM), 97105-900 RS, Brazil.
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Torbitz VD, Bochi GV, de Carvalho JAM, de Almeida Vaucher R, da Silva JEP, Moresco RN. In vitro oxidation of fibrinogen promotes functional alterations and formation of advanced oxidation protein products, an inflammation mediator. Inflammation 2016; 38:1201-6. [PMID: 25502444 DOI: 10.1007/s10753-014-0085-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Fibrinogen (FB) is a soluble blood plasma protein and is a key molecule involved in coagulation. Oxidative modification of proteins, such as the formation of advanced oxidation protein products (AOPP), a heterogeneous family of protein compounds structurally modified and derived from oxidative stress, may be associated with the pathophysiology of a number of chronic inflammatory diseases. Therefore, the aim of this study was to determine whether the formation of this mediator of inflammation occurs from FB and whether its generation is associated with structural changes. Results of the present study suggest that the oxidation of FB may provoke the formation of AOPP, which in turn, may promote functional alterations in FB, thus causing changes in its structural domains and increasing its procoagulant activity.
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Affiliation(s)
- Vanessa Dorneles Torbitz
- Laboratory of Clinical Biochemistry, Department of Clinical and Toxicological Analysis, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil
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Mario DAN, Santos RCV, Denardi LB, Vaucher RDA, Santurio JM, Alves SH. Interference of melanin in the susceptibility profile of Sporothrix species to amphotericin B. Rev Iberoam Micol 2015; 33:21-5. [PMID: 26194334 DOI: 10.1016/j.riam.2015.03.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Revised: 03/02/2015] [Accepted: 03/11/2015] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND The presence of melanin in the fungal cell is a major virulence factor of the genus Sporothrix since it protects the fungal cells against the defense systems. AIMS The present study aimed to investigate the interference of melanin in the susceptibility of Sporothrix brasiliensis and Sporothrix schenckii sensu stricto to amphotericin B and itraconazole, drugs recommended as therapy for disseminated and subcutaneous sporotrichosis, respectively. METHODS Yeast cells were cultivated in minimal medium with or without l-DOPA in order to induce the production of melanin. Microdilution and killing assay methods were used to determine the antifungal activity against yeast cells with different amounts of melanin. RESULTS The killing assay showed that melanization protected isolates within the S. schenckii complex from amphotericin B, particularly in the lower concentrations tested. CONCLUSIONS Studies combining amphotericin B and inhibitors of melanin are required in order to avoid this effect.
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Affiliation(s)
- Débora Alves Nunes Mario
- Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil; Faculdade Meridional Imed, Passo Fundo, Rio Grande do Sul, Brazil.
| | | | - Laura Bedin Denardi
- Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Rodrigo de Almeida Vaucher
- Laboratório de Microbiologia Clínica, Centro Universitário Franciscano, Santa Maria, Rio Grande do Sul, Brazil
| | - Janio Morais Santurio
- Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Sydney Hartz Alves
- Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
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Boligon AA, Brum TFD, Zadra M, Piana M, Alves CFDS, Fausto VP, Júnior VDSB, Vaucher RDA, Santos RCV, Athayde ML. Antimicrobial activity of Scutia buxifolia against the honeybee pathogen Paenibacillus larvae. J Invertebr Pathol 2013; 112:105-7. [DOI: 10.1016/j.jip.2012.11.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Revised: 11/01/2012] [Accepted: 11/17/2012] [Indexed: 10/27/2022]
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30
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Santos RCV, dos Santos Alves CF, Schneider T, Lopes LQS, Aurich C, Giongo JL, Brandelli A, de Almeida Vaucher R. Antimicrobial activity of Amazonian oils against Paenibacillus species. J Invertebr Pathol 2011; 109:265-8. [PMID: 22200645 DOI: 10.1016/j.jip.2011.12.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2011] [Accepted: 12/08/2011] [Indexed: 10/14/2022]
Abstract
The Gram-positive, spore-forming bacterium Paenibacillus larvae is the primary bacterial pathogen of honeybee brood and the causative agent of American foulbrood disease (AFB). One of the feasible alternative treatments being used for their control of this disease is essential oils. In this study in vitro antimicrobial activity of Andiroba and Copaíba essential oils against Paenibacillus species, including P. larvae was evaluated. Minimal inhibitory concentration (MIC) in Mueller-Hinton broth by the microdilution method was assessed. Andiroba registered MIC values of 1.56-25%, while the MICs values obtained for Copaíba oil were of 1.56-12.5%. In order to determine the time-response effect of essential oils on P. larvae, this microorganism was exposed to the oils for up to 48 h. After 24 h treatment with Andiroba oil and after 48 h treatment with Copaíba oil no viable cells of P. larvae ATCC 9545 were observed. The possible toxic effect of essential oils were assessed by the spraying application method of the same concentrations of MICs. Bee mortality was evident only in treatment with Andiroba oil and the Copaíba oil shows no toxic effects after 10 days of observation. Taking together ours results showed for the first time that these oils presented a high activity against Paenibacillus species showing that Copaíba oil may be a candidate for the treatment or prevention of AFB.
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Affiliation(s)
- Roberto Christ Vianna Santos
- Laboratório de Microbiologia, Ciências da Saúde, Centro Universitário Franciscano, UNIFRA, Santa Maria, Rio Grande do Sul, Brazil.
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Vaucher RDA, Dezen D, Simonetti AB, Spilki FR, Roehe PM. Phylogenetic characterization of bovine parainfluenza 3 from contaminated cell cultures and field isolates from Brazil. Braz J Microbiol 2011. [DOI: 10.1590/s1517-83822011000400029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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32
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de Almeida Vaucher R, Dezen D, Simonetti AB, Spilki FR, Roehe PM. Phylogenetic characterization of bovine parainfluenza 3 from contaminated cell cultures and field isolates from Brazil. Braz J Microbiol 2011; 42:1440-4. [PMID: 24031776 PMCID: PMC3768747 DOI: 10.1590/s1517-838220110004000029] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2010] [Accepted: 06/06/2011] [Indexed: 11/22/2022] Open
Abstract
Genomic fragments of the HN and L genes from Brazilian bovine parainfluenza 3 virus (bPIV-3) isolated as contaminants from cell cultures and clinical specimens were amplified by reverse transcription-polymerase chain reaction (RT-PCR), sequenced using specific degenerate primers and analyzed by phylogenetic comparison with reference strains of bPI3V. The Brazilian isolates revealed a high degree of genomic when compared to SF4/32 prototype strain, within the recently proposed genotype A of bPIV-3.
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33
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Vaucher RDA, Velho Gewehr CDCV, Correa APF, Sant'Anna V, Ferreira J, Brandelli A. Evaluation of the immunogenicity and in vivo toxicity of the antimicrobial peptide P34. Int J Pharm 2011; 421:94-8. [PMID: 21963470 DOI: 10.1016/j.ijpharm.2011.09.020] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Revised: 08/22/2011] [Accepted: 09/19/2011] [Indexed: 11/15/2022]
Abstract
Immunogenicity and toxicity of antimicrobial peptide P34 were evaluated in vivo. BALB/c mice were inoculated intraperitoneally with peptide P34 alone and associated with Freund's adjuvant. For acute toxicity testing, different concentrations of the peptide P34 (82.5, 165.0, 247.5 and 330.0mg/kg) were orally administered. To evaluate the sub-chronic toxicity the tested dose of 0.825 mg/kg/day of the peptide P34 or nisin were administered for 21 days. There were no hypersensitivity reactions or significant increase in antibody titer during the immunogenicity experiment or death of animals during the acute or sub-chronic toxicity tests. The LD(50) was higher than 332.3 ± 0.76 mg/kg. No significant changes in serum biochemical parameters were observed in the animals treated with the peptide P34 unlike nisin-treated group showed a significant increase in alanine transaminase levels in comparison to controls. The group treated with 0.825 mg/kg/day of nisin showed histological changes in the spleen, skin and liver. In the group treated with peptide P34 histological changes in the spleen were observed, with the presence of megakaryocytes. Few studies report the use of animal models to evaluate the in vivo toxicity of antimicrobial peptides and such investigation is an essential step to ensure it safe use in foods.
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Affiliation(s)
- Rodrigo de Almeida Vaucher
- Laboratório de Bioquímica e Microbiologia Aplicada, Instituto de Ciência e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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