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Oliveira RC, Bandeira PN, Lemos TLG, Dos Santos HS, Scherf JR, Rocha JE, Pereira RLS, Freitas TS, Freitas PR, Pereira-Junior FN, Marinho MM, Marinho EM, Marinho ES, Nogueira CES, Coutinho HDM, Teixeira AMR. In silico and in vitro evaluation of efflux pumps inhibition of α,β-amyrin. J Biomol Struct Dyn 2022; 40:12785-12799. [PMID: 34528866 DOI: 10.1080/07391102.2021.1976277] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The use of the bacterial efflux pump mechanism to reduce the concentrations of antibiotics in the intracellular to the extracellular region is one of the main mechanisms by which bacteria acquire resistance to antibiotics. The present study aims to evaluate the antibacterial activity of the α,β-amyrin mixture isolated from Protium heptaphyllum against the multidrug-resistant strains of Escherichia coli 06 and Staphylococcus aureus 10, and to verify the inhibition of the efflux resistance mechanisms against the strains of S. aureus 1199B and K2068, carrying the NorA and MepA efflux pumps, respectively. The α,β-amyrin did not show clinically relevant direct bacterial activity. However, the α,β-amyrin when associated with the gentamicin antibiotic presented synergistic effect against the multidrug-resistant bacterial strain of S. aureus 10. In strains with efflux pumps, α,β-amyrin was able to inhibit the action of the efflux protein NorA against Ethidium Bromide. However, this inhibitory effect was not observed in the MepA efflux pump. In addition, when evaluating the effect of standard efflux pump inhibitors, clorptomazine and CCCP, α,β-amyrin showed a decrease in MIC, demonstrating the presence of the efflux mechanism through synergism. Docking studies indicate that α, β-amyrin have a higher affinity energy to MepA, and NorA than ciprofloxacin and norfloxacin. Also, α, β-amyrin bind to the same region of the binding site as these antibiotics. It was concluded that the α, β-amyrin has the potential to increase antibacterial activity with the association of antibiotics, together with the ability to be a strong candidate for an efflux pump inhibitor.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Raíssa C Oliveira
- Graduate Program in Biological Chemistry, Department of Biological Chemistry, Regional University of Cariri, Crato, CE, Brazil
| | - Paulo N Bandeira
- Science and Technology Centre, Course of Chemistry, State University Vale do Acaraú, Sobral, CE, Brazil
| | - Telma L G Lemos
- Department of Organic and Inorganic Chemistry, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Hélcio S Dos Santos
- Graduate Program in Biological Chemistry, Department of Biological Chemistry, Regional University of Cariri, Crato, CE, Brazil.,Science and Technology Centre, Course of Chemistry, State University Vale do Acaraú, Sobral, CE, Brazil
| | - Jackelyne R Scherf
- Graduate Program in Biological Chemistry, Department of Biological Chemistry, Regional University of Cariri, Crato, CE, Brazil
| | - Janaina E Rocha
- Graduate Program in Biological Chemistry, Department of Biological Chemistry, Regional University of Cariri, Crato, CE, Brazil
| | - Raimundo L S Pereira
- Graduate Program in Biological Chemistry, Department of Biological Chemistry, Regional University of Cariri, Crato, CE, Brazil
| | - Thiago S Freitas
- Graduate Program in Biological Chemistry, Department of Biological Chemistry, Regional University of Cariri, Crato, CE, Brazil
| | - Priscila R Freitas
- Graduate Program in Biological Chemistry, Department of Biological Chemistry, Regional University of Cariri, Crato, CE, Brazil
| | - Francisco N Pereira-Junior
- Center of Agricultural Sciences and of the Biodiversity, Federal University of Cariri, Juazeiro do Norte, CE, Brazil
| | - Márcia M Marinho
- Faculty of Education, Sciences and Letters of Iguatu, State University of Ceará, Campus FECLI, Iguatu, CE, Brazil
| | - Emanuelle M Marinho
- Department of Analytical Chemistry and Physical Chemistry, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Emmanuel S Marinho
- Group of Theoretical Chemistry and Electrochemistry, State University of Ceará, Campus FAFIDAM, Limoeiro do Norte, CE, Brazil
| | - Carlos E S Nogueira
- Graduate Program in Biological Chemistry, Department of Biological Chemistry, Regional University of Cariri, Crato, CE, Brazil.,Department of Physics, Regional University of Cariri, Juazeiro do Norte, CE, Brazil
| | - Henrique D M Coutinho
- Graduate Program in Biological Chemistry, Department of Biological Chemistry, Regional University of Cariri, Crato, CE, Brazil
| | - Alexandre M R Teixeira
- Graduate Program in Biological Chemistry, Department of Biological Chemistry, Regional University of Cariri, Crato, CE, Brazil.,Department of Physics, Regional University of Cariri, Juazeiro do Norte, CE, Brazil
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2
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Rocha JE, Guedes TTAM, Bezerra CF, Costa MDS, Campina FF, de Freitas TS, Sousa AK, Sobral Souza CE, Silva MKN, Lobo YM, Pereira-Junior FN, da Silva JH, Menezes IRA, Teixeira RNP, Colares AV, Coutinho HDM. FTIR analysis of pyrogallol and phytotoxicity-reductive effect against mercury chloride. Environ Geochem Health 2021; 43:2433-2442. [PMID: 32488795 DOI: 10.1007/s10653-020-00607-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 05/24/2020] [Indexed: 06/11/2023]
Abstract
Human activities, especially in industry, have contributed to soil contamination with heavy or toxic metals. The objective of this study was to determine the chelating effect and antioxidant activity of pyrogallol, as well as to evaluate its cytoprotective activity in prokaryotic and eukaryotic models, animal and plant, respectively, against toxic mercury chloride action. Antioxidant activity was determined by DPPH where pyrogallol showed considerable action, chelating even iron ions. For the microbiologic activity assays, microdilution was performed to obtain the minimal inhibitory concentration, minimum bactericidal and minimum fungicide concentration, from which the sub-inhibitory concentrations were determined. The product did not conferred cytoprotection to the tested bacteria and fungi. To evaluate plant cytoprotection, Lactuta sativa seeds were used together with the product at a sub-allelopathic concentration with different HgCl2 concentrations. In this case, the tannin conferred cytoprotection to the plant model, allowing the best growth and development of caulicles and radicles, thus preserving tissues necessary for plant survival. From the results, it is observable that pyrogallol possesses cytoprotective action in the eukaryotic plant model, this action being useful as an alternative which favors the growth of plants in contaminated areas, as the recovering of crop fields or reforestation projects.
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Affiliation(s)
- Janaina E Rocha
- Laboratory of Microbiology and Molecular Biology, Department of Biological Chemistry, Regional University of Cariri, Av. Cel. Antônio Luiz, 1161. Pimenta, Crato, CE, 63105-000, Brazil
| | - Tássia T A M Guedes
- Laboratory of Microbiology and Molecular Biology, Department of Biological Chemistry, Regional University of Cariri, Av. Cel. Antônio Luiz, 1161. Pimenta, Crato, CE, 63105-000, Brazil
| | - Camila F Bezerra
- Laboratory of Microbiology and Molecular Biology, Department of Biological Chemistry, Regional University of Cariri, Av. Cel. Antônio Luiz, 1161. Pimenta, Crato, CE, 63105-000, Brazil
| | - Maria do S Costa
- Laboratory of Microbiology and Molecular Biology, Department of Biological Chemistry, Regional University of Cariri, Av. Cel. Antônio Luiz, 1161. Pimenta, Crato, CE, 63105-000, Brazil
| | - Fabia F Campina
- Laboratory of Microbiology and Molecular Biology, Department of Biological Chemistry, Regional University of Cariri, Av. Cel. Antônio Luiz, 1161. Pimenta, Crato, CE, 63105-000, Brazil
| | - Thiago S de Freitas
- Laboratory of Microbiology and Molecular Biology, Department of Biological Chemistry, Regional University of Cariri, Av. Cel. Antônio Luiz, 1161. Pimenta, Crato, CE, 63105-000, Brazil
| | - Amanda K Sousa
- Laboratory of Microbiology and Molecular Biology, Department of Biological Chemistry, Regional University of Cariri, Av. Cel. Antônio Luiz, 1161. Pimenta, Crato, CE, 63105-000, Brazil
| | - Celestina E Sobral Souza
- Laboratory of Microbiology and Molecular Biology, Department of Biological Chemistry, Regional University of Cariri, Av. Cel. Antônio Luiz, 1161. Pimenta, Crato, CE, 63105-000, Brazil
| | - Maria K N Silva
- Laboratory of Microbiology and Molecular Biology, Department of Biological Chemistry, Regional University of Cariri, Av. Cel. Antônio Luiz, 1161. Pimenta, Crato, CE, 63105-000, Brazil
| | - Yedda M Lobo
- Laboratory of Microbiology and Molecular Biology, Department of Biological Chemistry, Regional University of Cariri, Av. Cel. Antônio Luiz, 1161. Pimenta, Crato, CE, 63105-000, Brazil
| | | | | | - Irwin R A Menezes
- Laboratory of Pharmacology and Molecular Chemistry, Regional University of Cariri, Crato, CE, Brazil
| | - Raimundo N P Teixeira
- Laboratory of Research in Natural Products, Regional University of Cariri, Crato, CE, Brazil
| | | | - Henrique D M Coutinho
- Laboratory of Microbiology and Molecular Biology, Department of Biological Chemistry, Regional University of Cariri, Av. Cel. Antônio Luiz, 1161. Pimenta, Crato, CE, 63105-000, Brazil.
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Oliveira MM, Santos HS, Coutinho HD, Bandeira PN, da Silva PT, Freitas TS, Rocha JE, Xavier JC, Campina FF, Barbosa CR, Araújo Neto JB, Pereira RL, Silva MM, Muniz DF, Teixeira AM, Frota VM, Rodrigues TH, Amado AM, Marques MP, Batista de Carvalho LA, Nogueira CE. Spectroscopic characterization and efflux pump modulation of a thiophene curcumin derivative. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128291] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Freitas TSD, Xavier JDC, Pereira RLS, Rocha JE, Muniz DF, da Silva PT, da Hora JP, dos Santos HS, Bandeira PN, Nogueira CES, Teixeira AMR, Coutinho HDM. Direct antibacterial and antibiotic resistance modulatory activity of chalcones synthesized from the natural product 2-hydroxy-3,4,6-trimethoxyacetophenone. FEMS Microbiol Lett 2020; 367:5881301. [DOI: 10.1093/femsle/fnaa124] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 07/27/2020] [Indexed: 01/20/2023] Open
Abstract
ABSTRACT
Antibiotic for clinical use lose its effectiveness over time due to bacterial resistance. In this work, four chalcones with modifications in their ligands were synthesized from the natural product 2-hydroxy-3,4,6-trimethoxyacetophenone, characterized by nuclear magnetic resonance (NMR) and infrared spectroscopy, and tested in bacterial models to investigate the direct and modifiers effects of the antibiotic activity of these four novel chalcones. The tests followed the broth microdilution methodology to obtain the Minimum Inhibitory Concentration (MIC). The MIC/8 of the products were used in the resistance reversion test. The chalcone 2 showed the best result in terms of direct activity, with MIC 645 μg/mL for Staphylococcus aureus and 812 μg/mL for Escherichia coli. While, for the bacterial resistance reversal test, the chalcones presented several synergistic interactions, being that chalcone 4 had the best interaction with the tested antibiotics. It was found that the type of ligand, as well as its position in the ring, interferes in the modulation of the antibiotic activity. Our results show that chalcones are strong candidates to be used as antibacterial drug or in combination with antibiotics for the treatment of infections caused by multidrug-resistant (MDR) strains.
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Affiliation(s)
- Thiago Sampaio de Freitas
- Departamento de Química Biológica, Universidade Regional do Cariri, CEP 63105-000, Crato, Ceará, Brasil
| | - Jayze da Cunha Xavier
- Departamento de Química Biológica, Universidade Regional do Cariri, CEP 63105-000, Crato, Ceará, Brasil
| | - Raimundo L S Pereira
- Departamento de Química Biológica, Universidade Regional do Cariri, CEP 63105-000, Crato, Ceará, Brasil
| | - Janaina E Rocha
- Departamento de Química Biológica, Universidade Regional do Cariri, CEP 63105-000, Crato, Ceará, Brasil
| | - Dédora F Muniz
- Departamento de Química Biológica, Universidade Regional do Cariri, CEP 63105-000, Crato, Ceará, Brasil
| | - Priscila T da Silva
- Departamento de Química Biológica, Universidade Regional do Cariri, CEP 63105-000, Crato, Ceará, Brasil
| | - João P da Hora
- Centro de Ciências Exatas e Tecnologia, Universidade Estadual Vale do Acaraú, CEP 62.040-370, Campus Betânia, Sobral-CE, Brasil
| | - Hélcio S dos Santos
- Departamento de Química Biológica, Universidade Regional do Cariri, CEP 63105-000, Crato, Ceará, Brasil
- Centro de Ciências Exatas e Tecnologia, Universidade Estadual Vale do Acaraú, CEP 62.040-370, Campus Betânia, Sobral-CE, Brasil
| | - Paulo N Bandeira
- Centro de Ciências Exatas e Tecnologia, Universidade Estadual Vale do Acaraú, CEP 62.040-370, Campus Betânia, Sobral-CE, Brasil
| | - Carlos E S Nogueira
- Departamento de Química Biológica, Universidade Regional do Cariri, CEP 63105-000, Crato, Ceará, Brasil
| | - Alexandre M R Teixeira
- Departamento de Química Biológica, Universidade Regional do Cariri, CEP 63105-000, Crato, Ceará, Brasil
| | - Henrique D M Coutinho
- Departamento de Química Biológica, Universidade Regional do Cariri, CEP 63105-000, Crato, Ceará, Brasil
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Sobral-Souza CE, Silva ARP, Leite NF, Rocha JE, Sousa AK, Costa JGM, Menezes IRA, Cunha FAB, Rolim LA, Coutinho HDM. Phytotoxicity reduction of the mercury chloride effect by natural products from Eugenia jambolana Lam.: A new strategy against the toxic metal pollution. Ecotoxicol Environ Saf 2019; 170:461-467. [PMID: 30553924 DOI: 10.1016/j.ecoenv.2018.12.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 11/21/2018] [Accepted: 12/04/2018] [Indexed: 06/09/2023]
Abstract
The objective of this work was to evaluate the antioxidant, metal chelating and cytoprotective activity of the Eugenia jambolana Lam. extract, as well as of its flavonoid and tannic fractions, against the action of Mercury Chloride (HgCl2). Flavonoids were quantified and an LC-MS chromatographic analysis was performed to identify secondary metabolites. Fe2+ and Fe3+ chelation tests and antioxidant activity were carried out using the FRAP method. Microbiological tests were performed by microdilution to determine the Minimum Inhibitory Concentration (MIC). From these results the Minimum Bactericidal (MBC) and Minimum Fungicide Concentration (MFC) were evaluated. The allelopathy and cytoprotection assays were performed using eukaryotic and prokaryotic models. The results revealed the presence of phenolic acids and flavonoids in the E. jambolana extract and fractions. The sub-allelopathic concentration (64 μg/mL) was used and the results demonstrated the E. jambolana potential cytoprotective effect against mercury chloride.
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Affiliation(s)
- Celestina E Sobral-Souza
- Laboratório de Microbiologia e Biologia Molecular, Universidade Regional do Cariri, Rua Cel. Antonio Luis 1161, Pimenta, 63105-000 Crato, CE, Brazil
| | - Ana R P Silva
- Laboratório de Microbiologia e Biologia Molecular, Universidade Regional do Cariri, Rua Cel. Antonio Luis 1161, Pimenta, 63105-000 Crato, CE, Brazil
| | - Nadghia F Leite
- Laboratório de Microbiologia e Biologia Molecular, Universidade Regional do Cariri, Rua Cel. Antonio Luis 1161, Pimenta, 63105-000 Crato, CE, Brazil
| | - Janaina E Rocha
- Laboratório de Microbiologia e Biologia Molecular, Universidade Regional do Cariri, Rua Cel. Antonio Luis 1161, Pimenta, 63105-000 Crato, CE, Brazil
| | - Amanda K Sousa
- Laboratório de Microbiologia e Biologia Molecular, Universidade Regional do Cariri, Rua Cel. Antonio Luis 1161, Pimenta, 63105-000 Crato, CE, Brazil
| | - José G M Costa
- Laboratório de Pesquisa de Produtos Naturais, Universidade Regional do Cariri, Crato, CE, Brazil
| | - Irwin R A Menezes
- Laboratório de Farmacologia e Química Molecular, Universidade Regional do Cariri, Crato, CE, Brazil
| | - Francisco A B Cunha
- Laboratório de Microbiologia e Biologia Molecular, Universidade Regional do Cariri, Rua Cel. Antonio Luis 1161, Pimenta, 63105-000 Crato, CE, Brazil
| | - Larissa A Rolim
- Central de Análises de Fármacos, Medicamentos e Alimentos, Universidade Federal do Vale do São Francisco, Petrolina, PE, Brazil
| | - Henrique D M Coutinho
- Laboratório de Microbiologia e Biologia Molecular, Universidade Regional do Cariri, Rua Cel. Antonio Luis 1161, Pimenta, 63105-000 Crato, CE, Brazil.
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Sobral-Souza CE, Silva ARP, Leite NF, Rocha JE, Sousa AK, Costa JGM, Menezes IRA, Cunha FAB, Rolim LA, Coutinho HDM. Psidium guajava bioactive product chemical analysis and heavy metal toxicity reduction. Chemosphere 2019; 216:785-793. [PMID: 30391901 DOI: 10.1016/j.chemosphere.2018.10.174] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 09/24/2018] [Accepted: 10/24/2018] [Indexed: 06/08/2023]
Abstract
The present study had as its objective to verify the Psidium guajava var. Pomifera L. chelating, antioxidant and cytoprotective effects against mercury and aluminum. The ethanolic extract, tannic and flavonoid fractions were subjected to LC-MS analysis. The Ferric Reducing Antioxidant Power (FRAP) and ferric ion reduction demonstrated a present antioxidant activity. The fungicidal and bactericidal activity of these metals were established. After determining the sub-allelopathic doses, germination tests using Lactuca sativa were performed. Quercetin and its derivatives were the main compounds identified in the extract and the fractions. Mercury chloride significantly reduced the bactericidal effect of the flavonoid fraction (p < 0.001). None of the fractions were cytoprotective against mercury or aluminum in the fungal model assays. Using a sub-allelopathic concentration (64 μg/mL), the ethanolic extract, flavonoid and tannic fractions were found to be cytoprotective against aluminum for radicles, however only the tannic fraction was cytoprotective for caulicles. These data suggest that natural P. guajava products are promising cytoprotective compound sources. This activity may be related to the antioxidant effect of secondary metabolites, mainly flavonoids. Our results point to a potential for environmental intervention product and technique development aimed at mitigating contamination by toxic metals such as mercury and aluminum.
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Affiliation(s)
- Celestina E Sobral-Souza
- Microbiology and Molecular Biology Laboratory, Regional University of Cariri, Crato, CE, Brazil; Vale do Salgado University, Icó, CE, Brazil
| | - Ana R P Silva
- Microbiology and Molecular Biology Laboratory, Regional University of Cariri, Crato, CE, Brazil
| | - Nadghia F Leite
- Microbiology and Molecular Biology Laboratory, Regional University of Cariri, Crato, CE, Brazil
| | - Janaina E Rocha
- Microbiology and Molecular Biology Laboratory, Regional University of Cariri, Crato, CE, Brazil
| | - Amanda K Sousa
- Microbiology and Molecular Biology Laboratory, Regional University of Cariri, Crato, CE, Brazil
| | - José G M Costa
- Natural Products Research Laboratory, Regional University of Cariri, Crato, CE, Brazil
| | - Irwin R A Menezes
- Pharmacology and Molecular Chemistry Laboratory, Regional University of Cariri, Crato, CE, Brazil
| | - Francisco A B Cunha
- Microbiology and Molecular Biology Laboratory, Regional University of Cariri, Crato, CE, Brazil
| | - Larissa A Rolim
- Center for Drug, Remedies and Food Analysis, Federal University of the São Francisco Valley, Petrolina, PE, Brazil
| | - Henrique D M Coutinho
- Microbiology and Molecular Biology Laboratory, Regional University of Cariri, Crato, CE, Brazil.
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Carnaille BM, Pattou FN, Oudar C, Lecomte-Houcke MC, Rocha JE, Proye CA. Parathyroid incidentalomas in normocalcemic patients during thyroid surgery. World J Surg 1996; 20:830-4; discussion 834. [PMID: 8678958 DOI: 10.1007/s002689900126] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The aim of this study was to compare the clinical, biochemical, and pathologic findings of normocalcemic patients with macroscopically enlarged parathyroid tissue identified at thyroid surgery with those of patients treated surgically for preoperatively proved primary hyperparathyroidism (PHPT). The records of 28 patients with incidental parathyroid enlargement and 533 patients with PHPT were reviewed to compare age, sex, serum calcium and phosphate, intact parathyroid hormone (iPTH), parathyroid weight, number of diseased glands, cell and histologic types, PTH content, and cure rate. Incidentally found lesions were lighter and developed in younger patients. Biochemistry and pathology found them to be less hyperfunctioning. Sex, number of diseased glands per patient, and cell type were not different. PTH content was low in the incidental lesions. Incidentally discovered enlarged parathyroid glands are mildly hyperfunctioning at the time of discovery. They may represent an early stage of lesion responsible for overt PHPT. In the absence of knowledge concerning their significance and evolution, we recommend that enlarged parathyroids found during the course of a thyroid operation be removed.
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Affiliation(s)
- B M Carnaille
- Departments of General and Endocrine Surgery and Pathology, University Hospital, CHU, 59037 Lille Cedex, France
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Affiliation(s)
- G Duarte
- Department of Gynecology and Obstetrics, University Hospital, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Brazil
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