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Nuti S, Fernández-Lodeiro A, Galhano J, Oliveira E, Duarte MP, Capelo-Martínez JL, Lodeiro C, Fernández-Lodeiro J. Tailoring Mesoporous Silica-Coated Silver Nanoparticles and Polyurethane-Doped Films for Enhanced Antimicrobial Applications. Nanomaterials (Basel) 2024; 14:462. [PMID: 38470791 DOI: 10.3390/nano14050462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 03/14/2024]
Abstract
The global increase in multidrug-resistant bacteria poses a challenge to public health and requires the development of new antibacterial materials. In this study, we examined the bactericidal properties of mesoporous silica-coated silver nanoparticles, varying the core sizes (ca. 28 nm and 51 nm). We also investigated gold nanoparticles (ca. 26 nm) coated with mesoporous silica as possible inert metal cores. To investigate the modification of antimicrobial activity after the surface charge change, we used silver nanoparticles with a silver core of 28 nm coated with a mesoporous shell (ca. 16 nm) and functionalized with a terminal amine group. Furthermore, we developed a facile method to create mesoporous silica-coated silver nanoparticles (Ag@mSiO2) doped films using polyurethane (IROGRAN®) as a polymer matrix via solution casting. The antibacterial effects of silver nanoparticles with different core sizes were analyzed against Gram-negative and Gram-positive bacteria relevant to the healthcare and food industry. The results demonstrated that gold nanoparticles were inert, while silver nanoparticles exhibited antibacterial effects against Gram-negative (Escherichia coli and Salmonella enterica subsp. enterica serovar Choleraesuis) and Gram-positive (Bacillus cereus) strains. In particular, the larger Ag@mSiO2 nanoparticles showed a minimum inhibitory concentration (MIC) and a minimum bactericidal concentration (MBC) of 18 µg/mL in the Salmonella strain. Furthermore, upon terminal amine functionalization, reversing the surface charge to positive values, there was a significant increase in the antibacterial activity of the NPs compared to their negative counterparts. Finally, the antimicrobial properties of the nanoparticle-doped polyurethane films revealed a substantial improvement in antibacterial efficacy. This study provides valuable information on the potential of mesoporous silica-coated silver nanoparticles and their applications in fighting multidrug-resistant bacteria, especially in the healthcare and food industries.
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Affiliation(s)
- Silvia Nuti
- BIOSCOPE Research Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology (FCT NOVA), Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- PROTEOMASS Scientific Society, Praceta Jeronimo Dias, Num. 12, 2A, Sto Antonio de Caparica, 2825-466 Costa de Caparica, Portugal
| | - Adrián Fernández-Lodeiro
- BIOSCOPE Research Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology (FCT NOVA), Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- PROTEOMASS Scientific Society, Praceta Jeronimo Dias, Num. 12, 2A, Sto Antonio de Caparica, 2825-466 Costa de Caparica, Portugal
| | - Joana Galhano
- BIOSCOPE Research Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology (FCT NOVA), Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- PROTEOMASS Scientific Society, Praceta Jeronimo Dias, Num. 12, 2A, Sto Antonio de Caparica, 2825-466 Costa de Caparica, Portugal
| | - Elisabete Oliveira
- BIOSCOPE Research Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology (FCT NOVA), Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- PROTEOMASS Scientific Society, Praceta Jeronimo Dias, Num. 12, 2A, Sto Antonio de Caparica, 2825-466 Costa de Caparica, Portugal
| | - Maria Paula Duarte
- MEtRICs, Chemistry Department, NOVA School of Science and Technology (FCT NOVA), Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - José Luis Capelo-Martínez
- BIOSCOPE Research Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology (FCT NOVA), Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- PROTEOMASS Scientific Society, Praceta Jeronimo Dias, Num. 12, 2A, Sto Antonio de Caparica, 2825-466 Costa de Caparica, Portugal
| | - Carlos Lodeiro
- BIOSCOPE Research Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology (FCT NOVA), Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- PROTEOMASS Scientific Society, Praceta Jeronimo Dias, Num. 12, 2A, Sto Antonio de Caparica, 2825-466 Costa de Caparica, Portugal
| | - Javier Fernández-Lodeiro
- BIOSCOPE Research Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology (FCT NOVA), Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- PROTEOMASS Scientific Society, Praceta Jeronimo Dias, Num. 12, 2A, Sto Antonio de Caparica, 2825-466 Costa de Caparica, Portugal
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Encarnação S, Lima K, Malú Q, Caldeira GI, Duarte MP, Rocha J, Lima BS, Silva O. An Integrated Approach to the Anti-Inflammatory, Antioxidant, and Genotoxic Potential of Portuguese Traditional Preparations from the Bark of Anacardium occidentale L. Plants (Basel) 2024; 13:420. [PMID: 38337956 PMCID: PMC10857173 DOI: 10.3390/plants13030420] [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] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/21/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024]
Abstract
Anacardium occidentale L. stem bark Traditional Herbal Preparations (AoBTHPs) are widely used in traditional medicine to treat inflammatory conditions, such as diabetes. The present study aims to evaluate the anti-inflammatory, antioxidant, and genotoxic potential of red and white Portuguese AoBTHPs. Using a carrageenan-induced rat paw edema model, a significant anti-edema effect was observed for all tested doses of white AoBTHP (40.2, 71.5, and 127.0 mg/kg) and the two highest doses of red AoB THP (71.5 and 127.0 mg/kg). The anti-edema effect of red AoBTHP's highest dose was much more effective than indomethacin 10 mg/kg, Trolox 30 mg/kg, and Tempol 30 mg/kg. In DPPH, FRAP, and TAC using the phosphomolybdenum method, both types of AoBTHPs showed similar antioxidant activity and no genotoxicity up to 5000 µg/plate in the Ames test. The LC-UV/DAD-ESI/MS fingerprint allowed the identification of gallic and protocatechuic acids as the two main marker compounds and the presence of catechin, epicatechin, epigallocatechin gallate, and ellagic acid in both AoBTHPs. The obtained results support the validation of red and white AoB and their THPs as anti-inflammatory agents and contribute to the possible development of promising new therapeutic options to treat inflammatory conditions.
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Affiliation(s)
- Sofia Encarnação
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (S.E.); (K.L.); (Q.M.); (G.I.C.); (J.R.); (B.S.L.)
| | - Katelene Lima
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (S.E.); (K.L.); (Q.M.); (G.I.C.); (J.R.); (B.S.L.)
| | - Quintino Malú
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (S.E.); (K.L.); (Q.M.); (G.I.C.); (J.R.); (B.S.L.)
| | - Gonçalo I. Caldeira
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (S.E.); (K.L.); (Q.M.); (G.I.C.); (J.R.); (B.S.L.)
| | - Maria Paula Duarte
- MEtRICs/NOVA School of Science and Technology, Universidade NOVA de Lisboa, Campus de Caparica, 2829-516 Almada, Portugal;
| | - João Rocha
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (S.E.); (K.L.); (Q.M.); (G.I.C.); (J.R.); (B.S.L.)
| | - Beatriz Silva Lima
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (S.E.); (K.L.); (Q.M.); (G.I.C.); (J.R.); (B.S.L.)
| | - Olga Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (S.E.); (K.L.); (Q.M.); (G.I.C.); (J.R.); (B.S.L.)
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Lima K, Malmir M, Camões SP, Hasan K, Gomes S, Moreira da Silva I, Figueira ME, Miranda JP, Serrano R, Duarte MP, Silva O. Quality, Safety and Biological Studies on Campylanthus glaber Aerial Parts. Pharmaceuticals (Basel) 2023; 16:1373. [PMID: 37895844 PMCID: PMC10610246 DOI: 10.3390/ph16101373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 09/22/2023] [Accepted: 09/24/2023] [Indexed: 10/29/2023] Open
Abstract
In Cabo Verde, several endemic species are used in traditional medicine. However, no scientific studies have been conducted on the quality, efficacy, and safety of most of these plants. This study focused on establishing the botanical and chemical identification parameters required for a quality monograph of Campylanthus glaber Benth. aerial parts, a medicinal plant of Cabo Verde traditionally used to treat fever and muscular pain. In addition, in vitro antioxidant and antihyperglycemic activity, cytotoxicity, and genotoxicity were assessed for this medicinal plant. Optical microscopy, LC/UV-DAD-ESI/MS, and colorimetric assays were used for botanical, chemical, and biological studies, respectively. Cytotoxicity was assessed by the MTT assay with HepG2 cells, and genotoxicity by the Ames test. Microscopically, the xeromorphic leaf of C. glaber presents a thick cuticle (13.6-25.5 µm), thick-walled epidermal cells, anomocytic-type stomata, glandular trichomes (stalk length = 49.4-120.8 µm), and idioblasts containing calcium oxalate microcrystals. The chemical screening of aqueous and hydroethanolic extracts of this medicinal plant revealed the presence of organic acids, iridoids, phenylethanoids, and flavonoids as the main classes of marker compounds, with malic acid, citric acid, and verbascoside being the main marker compounds identified. Both extracts showed similar LC/UV-DAD/ESI-MS qualitative profiles and DPPH radical scavenger activity (IC50 = 130.9 ± 1.4; 134.3 ± 3.1 µg/mL). The hydroethanolic extract inhibited both α-amylase and α-glucosidase enzymes in a dose-dependent manner. Both extracts showed no cytotoxicity (up to 1000 µg/mL) by the MTT assay and no genotoxic potential with or without metabolic activation up to 5 mg /plate. The results obtained are an important contribution to the monographic quality assessment of C. glaber aerial parts and suggest that this medicinal plant may be safe and potentially used as an herbal drug raw material for pharmaceutical purposes.
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Affiliation(s)
- Katelene Lima
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (K.L.); (M.M.); (S.P.C.); (K.H.); (I.M.d.S.); (M.E.F.); (J.P.M.); (R.S.)
| | - Maryam Malmir
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (K.L.); (M.M.); (S.P.C.); (K.H.); (I.M.d.S.); (M.E.F.); (J.P.M.); (R.S.)
| | - Sérgio P. Camões
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (K.L.); (M.M.); (S.P.C.); (K.H.); (I.M.d.S.); (M.E.F.); (J.P.M.); (R.S.)
| | - Kamrul Hasan
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (K.L.); (M.M.); (S.P.C.); (K.H.); (I.M.d.S.); (M.E.F.); (J.P.M.); (R.S.)
| | - Samuel Gomes
- Instituto Nacional de Investigação e Desenvolvimento Agrário (INIDA), São Jorge dos Orgãos, Santiago CP 84, Cabo Verde;
| | - Isabel Moreira da Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (K.L.); (M.M.); (S.P.C.); (K.H.); (I.M.d.S.); (M.E.F.); (J.P.M.); (R.S.)
| | - Maria Eduardo Figueira
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (K.L.); (M.M.); (S.P.C.); (K.H.); (I.M.d.S.); (M.E.F.); (J.P.M.); (R.S.)
| | - Joana P. Miranda
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (K.L.); (M.M.); (S.P.C.); (K.H.); (I.M.d.S.); (M.E.F.); (J.P.M.); (R.S.)
| | - Rita Serrano
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (K.L.); (M.M.); (S.P.C.); (K.H.); (I.M.d.S.); (M.E.F.); (J.P.M.); (R.S.)
| | - Maria Paula Duarte
- The Mechanical Engineering and Resource Sustainability Center (MEtRICs), Nova School of Science and Technology, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal;
| | - Olga Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (K.L.); (M.M.); (S.P.C.); (K.H.); (I.M.d.S.); (M.E.F.); (J.P.M.); (R.S.)
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Branco P, Maurício EM, Costa A, Ventura D, Roma-Rodrigues C, Duarte MP, Fernandes AR, Prista C. Exploring the Multifaceted Potential of a Peptide Fraction Derived from Saccharomyces cerevisiae Metabolism: Antimicrobial, Antioxidant, Antidiabetic, and Anti-Inflammatory Properties. Antibiotics (Basel) 2023; 12:1332. [PMID: 37627752 PMCID: PMC10451726 DOI: 10.3390/antibiotics12081332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/04/2023] [Accepted: 08/13/2023] [Indexed: 08/27/2023] Open
Abstract
The rising demand for minimally processed, natural, and healthier food products has led to the search for alternative and multifunctional bioactive food components. Therefore, the present study focuses on the functional proprieties of a peptide fraction derived from Saccharomyces cerevisiae metabolism. The antimicrobial activity of the peptide fraction is evaluated against various foodborne pathogens, including Candida albicans, Candida krusei, Escherichia coli, Listeria monocytogenes, and Salmonella sp. The peptide fraction antioxidant properties are assessed using FRAP and DPPH scavenging capacity assays. Furthermore, the peptide fraction's cytotoxicity is evaluated in colorectal carcinoma and normal colon epithelial cells while its potential as an antidiabetic agent is investigated through α-amylase and α-glucosidase inhibitory assays. The results demonstrate that the 2-10 kDa peptide fraction exhibits antimicrobial effects against all tested microorganisms, except C. krusei. The minimal inhibitory concentration for E. coli, L. monocytogenes, and Salmonella sp. remains consistently low, at 0.25 mg/mL, while C. albicans requires a higher concentration of 1.0 mg/mL. Furthermore, the peptide fraction displays antioxidant activity, as evidenced by DPPH radical scavenging activity of 81.03%, and FRAP values of 1042.50 ± 32.5 µM TE/mL at 1.0 mg/mL. The peptide fraction exhibits no cytotoxicity in both tumor and non-tumoral human cells at a concentration up to 0.3 mg/mL. Moreover, the peptide fraction presents anti-inflammatory activity, significantly reducing the expression of the TNFα gene by more than 29.7% in non-stimulated colon cells and by 50% in lipopolysaccharide-stimulated colon cells. It also inhibits the activity of the carbohydrate digestive enzymes α-amylase (IC50 of 199.3 ± 0.9 µg/mL) and α-glucosidase (IC20 of 270.6 ± 6.0 µg/mL). Overall, the findings showed that the peptide fraction exhibits antibacterial, antioxidant, anti-inflammatory, and antidiabetic activity. This study represents a step forward in the evaluation of the functional biological properties of S. cerevisiae bioactive peptides.
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Affiliation(s)
- Patrícia Branco
- School of Engineering, Lusófona University, Campo Grande 376, 1749-024 Lisboa, Portugal
- Linking Landscape, Environment, Agriculture and Food (LEAF), Associated Laboratory TERRA, Instituto Superior de Agronomia, University of Lisbon, Tapada da Ajuda, 1349-017 Lisboa, Portugal
- Unit of Bioenergy and Biorefinary, Laboratório Nacional de Energia e Geologia (LNEG), Estrada do Paço do Lumiar, 22, 1649-038 Lisboa, Portugal
| | - Elisabete Muchagato Maurício
- School of Engineering, Lusófona University, Campo Grande 376, 1749-024 Lisboa, Portugal
- CBIOS—Universidade Lusófona’s Research Center for Biosciences & Health Technologies, Campo Grande 376, 1749-024 Lisboa, Portugal
- Elisa Câmara, Lda, Dermocosmética, Centro Empresarial de Talaíde, n°7 e 8, 2785-723 São Domingos de Rana, Portugal
| | - Ana Costa
- Linking Landscape, Environment, Agriculture and Food (LEAF), Associated Laboratory TERRA, Instituto Superior de Agronomia, University of Lisbon, Tapada da Ajuda, 1349-017 Lisboa, Portugal
| | - Diogo Ventura
- Linking Landscape, Environment, Agriculture and Food (LEAF), Associated Laboratory TERRA, Instituto Superior de Agronomia, University of Lisbon, Tapada da Ajuda, 1349-017 Lisboa, Portugal
| | - Catarina Roma-Rodrigues
- UCIBIO—Applied Molecular Biosciences Unit, Department Ciências da Vida, NOVA School of Science and Technology, 2829-516 Caparica, Portugal
- i4HB, Associate Laboratory—Institute for Health and Bioeconomy, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Maria Paula Duarte
- MEtRICs, Departamento de Química, NOVA School of Science and Technology|FCTNOVA, Campus de Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Alexandra R. Fernandes
- UCIBIO—Applied Molecular Biosciences Unit, Department Ciências da Vida, NOVA School of Science and Technology, 2829-516 Caparica, Portugal
- i4HB, Associate Laboratory—Institute for Health and Bioeconomy, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Catarina Prista
- Linking Landscape, Environment, Agriculture and Food (LEAF), Associated Laboratory TERRA, Instituto Superior de Agronomia, University of Lisbon, Tapada da Ajuda, 1349-017 Lisboa, Portugal
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Malmir M, Lima K, Camões SP, Manageiro V, Duarte MP, Miranda JP, Serrano R, da Silva IM, Lima BS, Caniça M, Silva O. Bioguided Identification of Active Antimicrobial Compounds from Asphodelus bento-rainhae and Asphodelus macrocarpus Root Tubers. Pharmaceuticals (Basel) 2023; 16:830. [PMID: 37375777 DOI: 10.3390/ph16060830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/26/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023] Open
Abstract
Root tubers of Asphodelus bento-rainhae subsp. bento-rainhae (AbR), a vulnerable endemic species, and Asphodelus macrocarpus subsp. macrocarpus (AmR) have traditionally been used in Portugal to treat inflammatory and infectious skin disorders. The present study aims to evaluate the in vitro antimicrobial activity of crude 70% and 96% hydroethanolic extracts of both medicinal plants, specifically against multidrug-resistant skin-related pathogens, to identify the involved marker secondary metabolites and also to assess the pre-clinical toxicity of these medicinal plant extracts. Bioguided fractionation of the 70% hydroethanolic extracts of both species using solvents of increasing polarity, namely diethyl ether (DEE: AbR-1, AmR-1), ethyl acetate (AbR-2, AmR-2) and aqueous (AbR-3, AmR-3) fractions, enabled the identification of the DEE fractions as the most active against all the tested Gram-positive microorganisms (MIC: 16 to 1000 µg/mL). Furthermore, phytochemical analyses using TLC and LC-UV/DAD-ESI/MS techniques revealed the presence of anthracene derivatives as the main constituents of DEE fractions, and five known compounds, namely 7'-(chrysophanol-4-yl)-chrysophanol-10'-C-beta-D-xylopyranosyl-anthrone (p), 10,7'-bichrysophanol (q), chrysophanol (r), 10-(chrysophanol-7'-yl)-10-hydroxychrysophanol-9-anthrone (s) and asphodelin (t), were identified as the main marker compounds. All these compounds showed high antimicrobial activity, particularly against Staphylococcus epidermidis (MIC: 3.2 to 100 µg/mL). Importantly, no cytotoxicity against HepG2 and HaCaT cells (up to 125 µg/mL) for crude extracts of both species and genotoxicity (up to 5000 µg/mL, with and without metabolic activation) for AbR 96% hydroethanolic extract was detected using the MTT and Ames tests, respectively. Overall, the obtained results contribute to the concrete validation of the use of these medicinal plants as potential sources of antimicrobial agents in the treatment of skin diseases.
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Affiliation(s)
- Maryam Malmir
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Katelene Lima
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Sérgio Póvoas Camões
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Vera Manageiro
- National Reference Laboratory of Antibiotic Resistances and Healthcare-Associated Infections, Department of Infectious Diseases, National Institute of Health Dr. Ricardo Jorge, 1649-016 Lisbon, Portugal
- Centre for Animal Science Studies (CECA), Institute of Agricultural and Agro-Food Sciences and Technologies (ICETA), University of Porto, 4050-453 Porto, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), Faculty of Veterinary Medicine, Universidade de Lisboa, 1300-477 Lisbon, Portugal
| | - Maria Paula Duarte
- The Mechanical Engineering and Resource Sustainability Center (MEtRICs), Nova School of Science and Technology, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Joana Paiva Miranda
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Rita Serrano
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Isabel Moreira da Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Beatriz Silva Lima
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Manuela Caniça
- National Reference Laboratory of Antibiotic Resistances and Healthcare-Associated Infections, Department of Infectious Diseases, National Institute of Health Dr. Ricardo Jorge, 1649-016 Lisbon, Portugal
- Centre for Animal Science Studies (CECA), Institute of Agricultural and Agro-Food Sciences and Technologies (ICETA), University of Porto, 4050-453 Porto, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), Faculty of Veterinary Medicine, Universidade de Lisboa, 1300-477 Lisbon, Portugal
- Center for Interdisciplinary Research in Animal Health (CIISA), Faculty of Veterinary Medicine, Universidade de Lisboa, 1300-477 Lisbon, Portugal
| | - Olga Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
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Romeiras MM, Essoh AP, Catarino S, Silva J, Lima K, Varela E, Moura M, Gomes I, Duarte MC, Duarte MP. Diversity and biological activities of medicinal plants of Santiago island (Cabo Verde). Heliyon 2023; 9:e14651. [PMID: 37009246 PMCID: PMC10060590 DOI: 10.1016/j.heliyon.2023.e14651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 03/08/2023] [Accepted: 03/15/2023] [Indexed: 03/28/2023] Open
Abstract
Plants continue to constitute key elements of medical practice in West African countries. The Cabo Verde archipelago hosts a great diversity of medicinal plants and local markets are considered important sites for trading plants harvested by rural communities. This study has two main goals: (i) to assess the medicinal uses of native species in Santiago, the biggest island of the archipelago, and (ii) to evaluate the antioxidant, antimicrobial and antidiabetic/antihyperglycemic activities of two native trees (Tamarix senegalensis and Sideroxylon marginatum) used in traditional medicine and traded in local markets. Our results revealed that on Santiago Island, 24 native plants are used in traditional medicine. The main uses of these species (e.g., forage, timber, food and fibres), their medicinal applications, the plant parts used, their mode of administration and conservation status are presented here for the first time. Moreover, the pharmacological characterization of two native tree species revealed that hydroethanolic extracts were richer in phenolic compounds and more active than their aqueous counterparts. All the studied extracts revealed significant antioxidant properties (DPPH and FRAP assays) and were generally moderately active against Gram-positive bacteria. All the extracts inhibited the activities of the carbohydrate digestive enzymes α-glucosidase and α-amylase in a dose-dependent manner. For α-glucosidase, the detected inhibitory activity (IC50 values from 2.0 ± 0.2 μg/mL to 9.9 ± 1.2 μg/mL) was significantly higher than that of acarbose, suggesting that extracts of both species can delay glucose absorption, thereby assisting in slowing down the progression of diabetes. Our findings highlight the crucial importance that medicinal plants have for the Cabo Verdean population, while also raising awareness on the need for sustainable use and conservation of native flora, and of tree species traded in local markets in particular.
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Malmir M, Lima K, Póvoas Camões S, Manageiro V, Duarte MP, Paiva Miranda J, Serrano R, Moreira da Silva I, Silva Lima B, Caniça M, Silva O. Identification of Marker Compounds and In Vitro Toxicity Evaluation of Two Portuguese Asphodelus Leaf Extracts. Molecules 2023; 28:molecules28052372. [PMID: 36903618 PMCID: PMC10005749 DOI: 10.3390/molecules28052372] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/27/2023] [Accepted: 03/01/2023] [Indexed: 03/08/2023] Open
Abstract
The leaves of Asphodelus bento-rainhae subsp. bento-rainhae, an endemic Portuguese species, and Asphodelus macrocarpus subsp. macrocarpus have been used as food, and traditionally as medicine, for treating ulcers, urinary tract, and inflammatory disorders. The present study aims to establish the phytochemical profile of the main secondary metabolites, together with the antimicrobial, antioxidant and toxicity assessments of both Asphodelus leaf 70% ethanol extracts. Phytochemical screenings were conducted by the TLC and LC-UV/DAD-ESI/MS chromatographic technique, and quantification of the leading chemical classes was performed by spectrophotometric methods. Liquid-liquid partitions of crude extracts were obtained using ethyl ether, ethyl acetate, and water. For in vitro evaluations of antimicrobial activity, the broth microdilution method, and for the antioxidant activity, the FRAP and DPPH methods were used. Genotoxicity and cytotoxicity were assessed by Ames and MTT tests, respectively. Twelve known compounds including neochlorogenic acid, chlorogenic acid, caffeic acid, isoorientin, p-coumaric acid, isovitexin, ferulic acid, luteolin, aloe-emodin, diosmetin, chrysophanol, and β-sitosterol were identified as the main marker compounds, and terpenoids and condensed tannins were found to be the major class of secondary metabolites of both medicinal plants. The ethyl ether fractions demonstrated the highest antibacterial activity against all the Gram-positive microorganisms, (MIC value of 62 to 1000 µg/mL), with aloe-emodin as one of the main marker compounds highly active against Staphylococcus epidermidis (MIC value of 0.8 to 1.6 µg/mL). Ethyl acetate fractions exhibited the highest antioxidant activity (IC50 of 800 to 1200 µg/mL, respectively). No cytotoxicity (up to 1000 µg/mL) or genotoxicity/mutagenicity (up to 5 mg/plate, with/without metabolic activation) were detected. The obtained results contribute to the knowledge of the value and safety of the studied species as herbal medicines.
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Affiliation(s)
- Maryam Malmir
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Katelene Lima
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Sérgio Póvoas Camões
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Vera Manageiro
- National Reference Laboratory of Antibiotic Resistances and Healthcare-Associated Infections, Department of Infectious Diseases, National Institute of Health Dr. Ricardo Jorge, 1649-016 Lisbon, Portugal
| | - Maria Paula Duarte
- MEtRICs/Chemistry Department, Nova School of Science and Technology, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Joana Paiva Miranda
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Rita Serrano
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Isabel Moreira da Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Beatriz Silva Lima
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Manuela Caniça
- National Reference Laboratory of Antibiotic Resistances and Healthcare-Associated Infections, Department of Infectious Diseases, National Institute of Health Dr. Ricardo Jorge, 1649-016 Lisbon, Portugal
| | - Olga Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
- Correspondence: ; Tel.: +35-12-1794-6400
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Malú Q, Lima K, Malmir M, Pinto R, da Silva IM, Catarino L, Duarte MP, Serrano R, Rocha J, Lima BS, Silva O. Contribution to the Preclinical Safety Assessment of Lannea velutina and Sorindeia juglandifolia Leaves. Plants (Basel) 2022; 12:130. [PMID: 36616259 PMCID: PMC9823897 DOI: 10.3390/plants12010130] [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: 12/05/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
Dried leaves of Lannea velutina A. Rich. and Sorindeia juglandifolia (A. Rich.) Planch. ex Oliv. (family Anacardiaceae) are used in African traditional medicine. Although these medicinal plants have widespread use in the treatment of inflammatory diseases, there is no scientific data concerning their preclinical or clinical safety. This work aimed to investigate the phytochemical properties of the leaves of both species using HPLC-UV/DAD, as well as the in vivo oral repeated-dose toxicity of 70% hydroethanolic leaf extract of S. juglandifolia and the in vitro genotoxicity of 70% hydroethanolic leaf extracts of L. velutina and S. juglandifolia. Clinical signs of toxicity, body weight variations, and changes in food consumption, mortality, and blood biochemical parameters were monitored. Genotoxicity was assessed using the bacterial reverse mutation assay (Ames test) with and without metabolic activation, according to OECD guidelines. The obtained results showed the presence of gallic acid and anacardic acid as the main marker constituents in both species. No significant changes in general body weight or food intake were observed; small significant changes with no critical relevance were observed in the blood biochemistry of animals treated with S. juglandifolia hydroethanolic extract (50, 400, and 1000 mg/kg body weight) compared to those in the control group. No genotoxicity was observed in the bacterial reverse mutation assay with S. juglandifolia and L. velutina extracts (up to 5 mg/plate). The safety data obtained in vivo and lack of genotoxic potential in vitro points to the safe medicinal use of S. juglandifolia and L. velutina extracts.
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Affiliation(s)
- Quintino Malú
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Katelene Lima
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Maryam Malmir
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Rui Pinto
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
- Dr Joaquim Chaves Laboratório de Análises Clínicas, 2790-224 Carnaxide, Portugal
| | - Isabel Moreira da Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Luís Catarino
- Centre for Ecology, Evolution and Environmental Changes, (cE3c) & CHANGE-Global Change and Sustainability Institute, Faculty of Sciences, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Maria Paula Duarte
- MEtRICs/Chemical Department, Nova School of Science and Technology, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Rita Serrano
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - João Rocha
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Beatriz Silva Lima
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Olga Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
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Marcelo GA, Galhano J, Duarte MP, Kurutos A, Capelo‐Martínez JL, Lodeiro C, Oliveira E. Functional Cyanine‐Based PVA:PVP Polymers as Antimicrobial Tools toward Food and Health‐Care Bacterial Infections. Macromol Biosci 2022. [DOI: 10.1002/mabi.202270033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Marcelo GA, Galhano J, Duarte MP, Kurutos A, Capelo-Martínez JL, Lodeiro C, Oliveira E. Functional Cyanine-Based PVA:PVP Polymers as Antimicrobial Tools toward Food and Health-Care Bacterial Infections. Macromol Biosci 2022; 22:e2200244. [PMID: 36004698 DOI: 10.1002/mabi.202200244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/22/2022] [Indexed: 01/15/2023]
Abstract
The rising of multidrug-resistant bacteria and their associated proliferation as harmful microorganisms boosts the creation of new antibacterial surfaces and biomaterials with applications ranging from health to food packing. Herein, low-cost antibacterial PVA:PVP copolymers containing cyanine derivatives (1, 2, and 3) and their respective Cu2+ complexes are successfully obtained and tested against Gram-negative and Gram-positive bacteria. The possible application in food packing is addressed by covering the surface of typical paper mockups with the doped polymers. All dye-doped polymers present a broad-spectrum antibacterial effect against Gram-positive bacteria, especially for Bacillus cereus (B. cereus), Staphylococcus aureus (S. aureus), and methicillin-resistant S. aureus (MRSA) strains, with PVA:PVP@3 and PVA:PVP@3-Cu being the most effective. Moreover, polymers containing cyanine derivatives present interesting inhibition effects against Pseudomonas aeruginosa (P. aeruginosa), where the production of its characteristic blue/green virulent pigment is not observed. Of the coated paper mockups, PVA:PVP:paper@2 and PVA:PVP:paper@2-Cu are most effective against B. cereus and S. aureus, while PVA:PVP:paper@3 and PVA:PVP:paper@3-Cu are most effective against the MRSA strain. In these formulations, direct contact inhibition mechanisms appear to be more significant than diffusional mechanisms, due to cyanine release hindrance, making them very interesting and versatile platforms for medical and food applications.
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Affiliation(s)
- Gonçalo A Marcelo
- BIOSCOPE Research Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, FCT NOVA, Universidade NOVA de Lisboa, Caparica, 2829-516, Portugal
| | - Joana Galhano
- BIOSCOPE Research Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, FCT NOVA, Universidade NOVA de Lisboa, Caparica, 2829-516, Portugal
| | - Maria Paula Duarte
- Chemistry Department, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Caparica, 2829-516, Portugal
| | - Atanas Kurutos
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev str., bl. 9, Sofia, 1113, Bulgaria
| | - Jose Luis Capelo-Martínez
- BIOSCOPE Research Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, FCT NOVA, Universidade NOVA de Lisboa, Caparica, 2829-516, Portugal.,PROTEOMASS Scientific Society. Rua dos Inventores. Madam Parque, Caparica Campus, Caparica, 2829-516, Portugal
| | - Carlos Lodeiro
- BIOSCOPE Research Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, FCT NOVA, Universidade NOVA de Lisboa, Caparica, 2829-516, Portugal.,PROTEOMASS Scientific Society. Rua dos Inventores. Madam Parque, Caparica Campus, Caparica, 2829-516, Portugal
| | - Elisabete Oliveira
- BIOSCOPE Research Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, FCT NOVA, Universidade NOVA de Lisboa, Caparica, 2829-516, Portugal.,PROTEOMASS Scientific Society. Rua dos Inventores. Madam Parque, Caparica Campus, Caparica, 2829-516, Portugal
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11
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Malmir M, Serrano R, Lima K, Duarte MP, Moreira da Silva I, Silva Lima B, Caniça M, Silva O. Monographic Quality Parameters and Genotoxicity Assessment of Asphodelus bento-rainhae and Asphodelus macrocarpus Root Tubers as Herbal Medicines. Plants (Basel) 2022; 11:3173. [PMID: 36432902 PMCID: PMC9692987 DOI: 10.3390/plants11223173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/14/2022] [Accepted: 11/16/2022] [Indexed: 06/16/2023]
Abstract
Root tubers of Asphodelus bento-rainhae subsp. bento-rainhae (AbR), an endemic species with relevant interest due to conservation concerns, and Asphodelus macrocarpus subsp. macrocarpus (AmR) have been traditionally used for culinary and medicinal purposes, mainly associated with skin infection and inflammation. The present study aims to establish the quality control criteria for the proper characterization of dried root tubers of both species as herbal substances, together with their preclinical safety assessments. Botanical identification using macroscopic and microscopic techniques and phytochemical evaluation/quantification of the main classes of marker secondary metabolites, including phenolic compounds (flavonoid, anthraquinone, condensed and hydrolysable tannin) and terpenoids were performed. Additionally, in vitro genotoxicity/mutagenicity was evaluated by Ames test. Evident morphological differences in the development of tubercles (3.5 × 1 cm in AbR and 8.7 × 1.4 cm in AmR) and microscopicly in the arrangements and characteristics of the vascular cylinder (metaxylem and protoxylems) were found. Anatomical similarities such as multiple-layered epidermis (velamen) and the cortex area with thin-walled idioblasts (134 ± 2.9 µm and 150 ± 27.6 µm) containing raphide crystals (37.2 ± 14.2 µm and 87.7 ± 15.3 µm) were observed between AbR and AmR, respectively. Terpenoids (173.88 ± 29.82 and 180.55 ± 10.57 mg OAE/g dried weight) and condensed tannins (128.64 ± 14.05 and 108.35 ± 20.37 mg CAE/g dried weight) were found to be the main class of marker secondary metabolites of AbR and AmR extracts, respectively. No genotoxicity (up to 5 mg/plate, without metabolic activation) was detected in these medicinal plants' tested extracts. The obtained results will contribute to the knowledge of the value of the Portuguese flora and their future commercial cultivation utilization as raw materials for industrial and pharmaceutical use.
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Affiliation(s)
- Maryam Malmir
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Rita Serrano
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Katelene Lima
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Maria Paula Duarte
- MEtRICs/Chemical Department, Nova School of Science and Technology, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Isabel Moreira da Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Beatriz Silva Lima
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Manuela Caniça
- National Reference Laboratory of Antibiotic Resistances and Healthcare-Associated Infections, Department of Infectious Diseases, National Institute of Health Dr. Ricardo Jorge, 1649-016 Lisbon, Portugal
| | - Olga Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
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Marcelo GA, Galhano J, Duarte MP, Capelo-Martínez JL, Lodeiro C, Oliveira E. Validation of a Standard Luminescence Method for the Fast Determination of the Antimicrobial Activity of Nanoparticles in Escherichia coli. Nanomaterials 2022; 12:nano12132164. [PMID: 35807997 PMCID: PMC9268724 DOI: 10.3390/nano12132164] [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] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/20/2022] [Accepted: 06/21/2022] [Indexed: 01/25/2023]
Abstract
The use of nanoparticles in multiple industries has raised concerned voices about the assessment of their toxicity/antimicrobial activity and the development of standardized handling protocols. Issues emerge during the antimicrobial assaying of multiple cargo, colorimetric, colloidal nanoformulations, as standard protocols often rely on visual evaluations, or optical density (OD) measurements, leading to high variance inhibitory concentrations (MIC). Thus, a fast, luminescence-based assay for the effective assessment of the antimicrobial activity of nanoparticles is herein reported, using the bioluminescence of an in-house E. coli ATCC® 8739TM construct with the pMV306G13 + Lux plasmid (E. coli Lux). The new strain’s sensitivity to ofloxacin as a standard antibiotic was confirmed, and the methodology robustness verified against multiple nanoparticles and colorimetric drugs. The reduction of incubation from 24 to only 8 h, and the sole use of luminescence (LUX490) to accurately determine and distinguish MIC50 and MIC90, are two main advantages of the method. By discarding OD measurements, one can avoid turbidity and color interferences when calculating bacterial growth. This approach is an important tool that contributes to the standardization of methods, reducing samples’ background interference and focusing on luminescence as a direct probe for bacterial metabolic activity, growth and, most importantly, the correct assessment of nanomaterials’ antimicrobial activity.
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Affiliation(s)
- Gonçalo A. Marcelo
- BIOSCOPE Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, FCT NOVA, NOVA University Lisbon, 2829-516 Caparica, Portugal; (G.A.M.); (J.G.); (J.L.C.-M.); (C.L.)
| | - Joana Galhano
- BIOSCOPE Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, FCT NOVA, NOVA University Lisbon, 2829-516 Caparica, Portugal; (G.A.M.); (J.G.); (J.L.C.-M.); (C.L.)
| | - Maria Paula Duarte
- MEtRICs, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
- Correspondence: (M.P.D.); (E.O.)
| | - José Luis Capelo-Martínez
- BIOSCOPE Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, FCT NOVA, NOVA University Lisbon, 2829-516 Caparica, Portugal; (G.A.M.); (J.G.); (J.L.C.-M.); (C.L.)
- PROTEOMASS Scientific Society, Rua dos Inventores, Madam Parque, Caparica Campus, 2825-182 Caparica, Portugal
| | - Carlos Lodeiro
- BIOSCOPE Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, FCT NOVA, NOVA University Lisbon, 2829-516 Caparica, Portugal; (G.A.M.); (J.G.); (J.L.C.-M.); (C.L.)
- PROTEOMASS Scientific Society, Rua dos Inventores, Madam Parque, Caparica Campus, 2825-182 Caparica, Portugal
| | - Elisabete Oliveira
- BIOSCOPE Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, FCT NOVA, NOVA University Lisbon, 2829-516 Caparica, Portugal; (G.A.M.); (J.G.); (J.L.C.-M.); (C.L.)
- PROTEOMASS Scientific Society, Rua dos Inventores, Madam Parque, Caparica Campus, 2825-182 Caparica, Portugal
- Correspondence: (M.P.D.); (E.O.)
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Saraiva N, Nicolai M, Martins M, Almeida N, Gusmini M, Maurício EM, Duarte MP, Gonçalves M, Baby AR, Fernandes A, Rosado C. Impact of Portuguese propolis on keratinocyte proliferation, migration and ROS protection: Significance for applications in skin products. Int J Cosmet Sci 2022; 44:333-342. [PMID: 35462442 DOI: 10.1111/ics.12781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/20/2022] [Accepted: 04/21/2022] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Propolis has been used since antiquity, but recent reports of its biological properties hint that it could be employed as a topical pharmaceutical and cosmetic ingredient. This work aims to probe the action of Portuguese propolis extracts on skin cells, providing mechanistic insights into its mode of action and preliminarily assessing its applicability as a skin repair ingredient. METHODS The total phenolic content of propolis extracts was measured by the Folin Ciocalteu method. The cytotoxic effect of propolis extracts in human keratinocytes was determined and non-cytotoxic concentrations of the extracts were used to study the impact on collective cell migration, cell cycle and intracellular ROS levels. RESULTS o significant impact was observed in collective cell migration, but one of the extracts mildly increased G2 phase while reducing the % of sub-G1 at a non-cytotoxic concentration. The two extracts with higher phenolic content strongly prevented intracellular cellular ROS accumulation upon exposure to TBHP. Collectively, these results indicate that the putative beneficial effects of propolis extracts in skin repair may not be attributable to induction of collective cell migration but could be partially ascribed to the protection from oxidative stress, which could act in synergy with its well-known antimicrobial activity. CONCLUSION These data support the applicability of this material in topical and cosmetic formulations and further in vivo assays should be conducted to fully characterize its efficacy and safety.
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Affiliation(s)
- Nuno Saraiva
- CBIOS, Universidade Lusófona's Research Center for Biosciences & Health Technologies, Lisbon, Portugal
| | - Marisa Nicolai
- CBIOS, Universidade Lusófona's Research Center for Biosciences & Health Technologies, Lisbon, Portugal
| | - Marta Martins
- CBIOS, Universidade Lusófona's Research Center for Biosciences & Health Technologies, Lisbon, Portugal
| | - Nuno Almeida
- CBIOS, Universidade Lusófona's Research Center for Biosciences & Health Technologies, Lisbon, Portugal
| | - Matteo Gusmini
- CBIOS, Universidade Lusófona's Research Center for Biosciences & Health Technologies, Lisbon, Portugal
| | - Elisabete Muchagato Maurício
- CBIOS, Universidade Lusófona's Research Center for Biosciences & Health Technologies, Lisbon, Portugal.,Elisa Câmara, Lda, Cosmética Natural, São Domingos de Rana, Portugal
| | - Maria Paula Duarte
- MEtRICs/DCTB, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
| | - Margarida Gonçalves
- MEtRICs/DCTB, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
| | - André Rolim Baby
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Ana Fernandes
- CBIOS, Universidade Lusófona's Research Center for Biosciences & Health Technologies, Lisbon, Portugal
| | - Catarina Rosado
- CBIOS, Universidade Lusófona's Research Center for Biosciences & Health Technologies, Lisbon, Portugal
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Galhano J, Marcelo GA, Duarte MP, Oliveira E. Ofloxacin@Doxorubicin-Epirubicin functionalized MCM-41 mesoporous silica-based nanocarriers as synergistic drug delivery tools for cancer related bacterial infections. Bioorg Chem 2021; 118:105470. [PMID: 34814085 DOI: 10.1016/j.bioorg.2021.105470] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 10/26/2021] [Accepted: 11/02/2021] [Indexed: 12/20/2022]
Abstract
Mesoporous silica nanoparticles (MNs) emerged as new promising drug-delivery platforms capable to overcome resistance in bacteria. Dual loading of drugs on these nanocarriers, exploiting synergistic interactions between the nanoparticles and the drugs, could be considered as a way to increase the efficacy against resistant bacteria with a positive effect even at very low concentrations. Considering that patients with cancer are highly susceptible to almost any type of bacterial infections, in this work, nanocarriers mesoporous silica-based, MNs and MNs@EPI were synthetized and submitted to single and/or dual loading of antibiotics (ofloxacin - OFLO) and anticancer drugs (Doxorubicin - DOX; Epirubicin - EPI), and investigated regarding their antibacterial activity against Escherichia coli, Staphylococcus aureus, methicillin-resistant S. aureus (MRSA), Enterococcus faecalis and Pseudomonas aeruginosa. Formulations containing ofloxacin such as MNs-OFLO, MNs-EPI + OFLO, MNs-DOX + OFLO and MNs@EPI + OFLO, present antibacterial activity in all bacterial strains tested. All these are more effective in E.coli with MIC and MBC values for MNs-OFLO, MNs-EPI + OFLO and MNs-DOX + OFLO of around 1 and 2 µgnanomaterial/mL, corresponding to ofloxacin concentrations of 0.03, 0.02 and 0.04 µg/mL, respectively. In the cocktail formulations the conjugation of epirubicin with ofloxacin presents a more effective antibacterial activity with more than 3-fold reduction of ofloxacin concentration when comparing to the single ofloxacin system. By far, the most effective synergistic effect was obtained for the system where epirubicin was functionalized at nanoparticles surface (MNs@EPI), where a 40-fold and 33-fold reductions of ofloxacin concentration were obtained, in P. aeruginosa in comparison to the MNs-OFLO and MNs-EPI + OFLO systems, respectively. These effects are shown in all bacterial strains tested, even in strains that have acquired resistance mechanisms, such as MRSA.
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Affiliation(s)
- Joana Galhano
- BIOSCOPE Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, FCT NOVA, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Gonçalo A Marcelo
- BIOSCOPE Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, FCT NOVA, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Maria Paula Duarte
- MEtRICs/DCTB, NOVA School of Science and Technology, FCT NOVA, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
| | - Elisabete Oliveira
- BIOSCOPE Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, FCT NOVA, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal; PROTEOMASS Scientific Society, Rua dos Inventores, Madam Parque, Caparica Campus, 2829-516 Caparica, Portugal.
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Estévez A, Camacho C, Correia T, Barbosa V, Marques A, Lourenço H, Serrano C, Sapata M, Duarte MP, Pires C, Gonçalves A, Nunes ML, Oliveira H. Strategies to reduce sodium levels in European seabass sausages. Food Chem Toxicol 2021; 153:112262. [PMID: 34004227 DOI: 10.1016/j.fct.2021.112262] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 05/07/2021] [Accepted: 05/10/2021] [Indexed: 11/16/2022]
Abstract
Considering the increasing demand towards "ready-to-cook" processed seafood products, recognised as being potential contributors to high sodium (Na) intake by consumers, this study aimed to assess the effect of sodium chloride (NaCl) reduction on physicochemical, microbiological and sensory properties of European seabass (Dicentrarchus labrax) sausages stored in chilling conditions during 5 weeks. Three formulations were tested in comparison with a control (100% NaCl, CTR): (i) 50% NaCl+50% ME (oleoresins microcapsules) (F1); (ii) 50% NaCl+50% KCl (F2); and (iii) only 50% NaCl (F3). The NaCl reduction mainly affected the texture and the salty taste, resulting in softer and perceived as less salty sausages after processing. However, hardness differences disappeared after 5 weeks. It seems that an antioxidant protection was obtained in sausages formulated with oleoresins microcapsules. No or low growth of psychrotrophic and mesophilic bacteria was observed (≤2.40 log CFU/g). Decreasing NaCl content and/or partially replacing it (50%) by KCl or oleoresins microcapsules seem to be suitable solutions to reduce Na (30.9-36.3%) levels, while maintaining the chilled sausages quality for 5 weeks. The partial replacement of NaCl by KCl also allows obtaining a product richer in K (997.2 mg/100 g), which ingestion may contribute for a cardiovascular protective effect.
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Affiliation(s)
- Anabel Estévez
- Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208, Matosinhos, Portugal; Portuguese Institute for the Sea and Atmosphere, Division of Aquaculture, Upgrading and Bioprospecting, Av. Alfredo Magalhães Ramalho 6, 1495-165, Lisboa, Portugal.
| | - Carolina Camacho
- Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208, Matosinhos, Portugal; Portuguese Institute for the Sea and Atmosphere, Division of Aquaculture, Upgrading and Bioprospecting, Av. Alfredo Magalhães Ramalho 6, 1495-165, Lisboa, Portugal
| | - Tatiana Correia
- Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208, Matosinhos, Portugal; Portuguese Institute for the Sea and Atmosphere, Division of Aquaculture, Upgrading and Bioprospecting, Av. Alfredo Magalhães Ramalho 6, 1495-165, Lisboa, Portugal
| | - Vera Barbosa
- Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208, Matosinhos, Portugal; Portuguese Institute for the Sea and Atmosphere, Division of Aquaculture, Upgrading and Bioprospecting, Av. Alfredo Magalhães Ramalho 6, 1495-165, Lisboa, Portugal
| | - António Marques
- Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208, Matosinhos, Portugal; Portuguese Institute for the Sea and Atmosphere, Division of Aquaculture, Upgrading and Bioprospecting, Av. Alfredo Magalhães Ramalho 6, 1495-165, Lisboa, Portugal
| | - Helena Lourenço
- Portuguese Institute for the Sea and Atmosphere, Division of Aquaculture, Upgrading and Bioprospecting, Av. Alfredo Magalhães Ramalho 6, 1495-165, Lisboa, Portugal
| | - Carmo Serrano
- National Institute of Agriculture and Veterinary Research, Av. da República, Quinta do Marquês, 2780-157, Oeiras, Portugal
| | - Margarida Sapata
- National Institute of Agriculture and Veterinary Research, Av. da República, Quinta do Marquês, 2780-157, Oeiras, Portugal
| | - Maria Paula Duarte
- Faculty of Sciences and Technology, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
| | - Carla Pires
- Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208, Matosinhos, Portugal; Portuguese Institute for the Sea and Atmosphere, Division of Aquaculture, Upgrading and Bioprospecting, Av. Alfredo Magalhães Ramalho 6, 1495-165, Lisboa, Portugal
| | - Amparo Gonçalves
- Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208, Matosinhos, Portugal; Portuguese Institute for the Sea and Atmosphere, Division of Aquaculture, Upgrading and Bioprospecting, Av. Alfredo Magalhães Ramalho 6, 1495-165, Lisboa, Portugal
| | - Maria Leonor Nunes
- Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208, Matosinhos, Portugal
| | - Helena Oliveira
- Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208, Matosinhos, Portugal; Portuguese Institute for the Sea and Atmosphere, Division of Aquaculture, Upgrading and Bioprospecting, Av. Alfredo Magalhães Ramalho 6, 1495-165, Lisboa, Portugal.
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Brilhante M, Varela E, P. Essoh A, Fortes A, Duarte MC, Monteiro F, Ferreira V, Correia AM, Duarte MP, Romeiras MM. Tackling Food Insecurity in Cabo Verde Islands: The Nutritional, Agricultural and Environmental Values of the Legume Species. Foods 2021; 10:foods10020206. [PMID: 33498384 PMCID: PMC7909421 DOI: 10.3390/foods10020206] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/15/2021] [Accepted: 01/18/2021] [Indexed: 12/20/2022] Open
Abstract
Legume species are important food sources to reduce hunger and deal with malnutrition; they also play a crucial role in sustainable agriculture in the tropical dry islands of Cabo Verde. To improve the knowledge of the heritage of plant genetic resources in this Middle Income Country, this study had three main goals: (i) to provide a checklist of food legumes; (ii) to investigate which species are traded in local markets and, based on field surveys, to compare species for their chemical, phenolic, antioxidant, and nutritional composition; and (iii) to discuss the agronomic value and contribution to food security in this archipelago. Our results revealed that 15 species are used as food and 5 of them are locally traded (Cajanus
cajan, Lablab
purpureus, Phaseolus
lunatus, Phaseolus vulgaris, and Vigna
unguiculata). The role of these species as sources of important minerals, antioxidants, and nutritional components for food security is highlighted, and the native ones (Lablab
purpureus and Vigna
unguiculata) stand-out as particularly well-adapted to the climate of these islands, which are already experiencing the adverse effects of climate change. We conclude that the sustainable use of these genetic resources can contribute to the reduction of hunger and poverty, thus meeting some challenges of the Sustainable Development Goals.
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Affiliation(s)
- Miguel Brilhante
- Linking Landscape, Environment, Agriculture and Food (LEAF), Instituto Superior de Agronomia (ISA), Universidade de Lisboa, Tapada da Ajuda, 1340-017 Lisboa, Portugal; (M.B.); (E.V.); (A.P.E.); (F.M.)
- Centre for Ecology, Evolution and Environmental Changes (cE3c), Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal;
| | - Eromise Varela
- Linking Landscape, Environment, Agriculture and Food (LEAF), Instituto Superior de Agronomia (ISA), Universidade de Lisboa, Tapada da Ajuda, 1340-017 Lisboa, Portugal; (M.B.); (E.V.); (A.P.E.); (F.M.)
| | - Anyse P. Essoh
- Linking Landscape, Environment, Agriculture and Food (LEAF), Instituto Superior de Agronomia (ISA), Universidade de Lisboa, Tapada da Ajuda, 1340-017 Lisboa, Portugal; (M.B.); (E.V.); (A.P.E.); (F.M.)
- Research Centre in Biodiversity and Genetic Resources (CIBIO), InBIO Associate Laboratory, Pole of Azores, Faculdade de Ciências e Tecnologia, Universidade dos Açores, 9500-321 Ponta Delgada, Portugal
- Nova School of Business and Economics, Campus de Carcavelos, 2775-405 Carcavelos, Portugal
| | - Arlindo Fortes
- Escola Superior de Ciências Agrárias e Ambientais, Universidade de Cabo Verde, Santiago, Praia CP 379, Cape Verde; (A.F.); (V.F.)
- Centro de Estudos sobre África para o Desenvolvimento (CEsA), Instituto Superior de Economia e Gestão, Universidade de Lisboa, 1200-781 Lisboa, Portugal
| | - Maria Cristina Duarte
- Centre for Ecology, Evolution and Environmental Changes (cE3c), Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal;
| | - Filipa Monteiro
- Linking Landscape, Environment, Agriculture and Food (LEAF), Instituto Superior de Agronomia (ISA), Universidade de Lisboa, Tapada da Ajuda, 1340-017 Lisboa, Portugal; (M.B.); (E.V.); (A.P.E.); (F.M.)
- Centre for Ecology, Evolution and Environmental Changes (cE3c), Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal;
| | - Vladimir Ferreira
- Escola Superior de Ciências Agrárias e Ambientais, Universidade de Cabo Verde, Santiago, Praia CP 379, Cape Verde; (A.F.); (V.F.)
| | - Augusto Manuel Correia
- Centre of Tropical Studies for Development (CENTROP), Instituto Superior de Agronomia (ISA), Universidade de Lisboa, 1349-017 Lisboa, Portugal;
| | - Maria Paula Duarte
- MEtRICs/DCTB, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- Correspondence: (M.P.D.); (M.M.R.)
| | - Maria M. Romeiras
- Linking Landscape, Environment, Agriculture and Food (LEAF), Instituto Superior de Agronomia (ISA), Universidade de Lisboa, Tapada da Ajuda, 1340-017 Lisboa, Portugal; (M.B.); (E.V.); (A.P.E.); (F.M.)
- Centre for Ecology, Evolution and Environmental Changes (cE3c), Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal;
- Correspondence: (M.P.D.); (M.M.R.)
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Marcelo GA, Duarte MP, Oliveira E. Gold@mesoporous silica nanocarriers for the effective delivery of antibiotics and by-passing of β-lactam resistance. SN Appl Sci 2020. [DOI: 10.1007/s42452-020-3023-6] [Citation(s) in RCA: 7] [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] [Indexed: 11/28/2022] Open
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18
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Marmelo I, Barbosa V, Maulvault AL, Duarte MP, Marques A. Does the addition of ingredients affect mercury and cadmium bioaccessibility in seafood-based meals? Food Chem Toxicol 2019; 136:110978. [PMID: 31747620 DOI: 10.1016/j.fct.2019.110978] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 10/31/2019] [Accepted: 11/14/2019] [Indexed: 10/25/2022]
Abstract
Despite the bioaccessibility of nutrients and contaminants present in individual seafood products has been thoroughly studied, information is extremely limited in what concerns complete seafood-based meals, where interactions between ingredients may occur. Hence, this study aimed to evaluate the effect of different ingredients and cooking processes in mercury (Hg) and cadmium (Cd) bioaccessibility in complete meals of tuna (Thunnus spp.) and edible crab (Cancer pagurus), respectively. The addition of ingredients/side dishes decreased Hg levels in cooked tuna meals, but increased Hg bioaccessibility (up to 31% of bioaccessible Hg in complete meals, against 13.5% in stewed tuna alone). Cd levels in edible crab meals were significantly decreased by the addition of ingredients (~36% and ~65% decrease in boiled crab and paté, respectively), but its' bioaccessibility was not significantly affected (>94% in all cases). Results showed that the weekly consumption of 2 complete tuna meals does not exceed MeHg tolerable weekly intake (TWI), whereas Cd's TWI is largely surpassed with the consumption of 50 g/week of edible crab meals. This highlights the importance of determining contaminant levels and bioaccessibility in a whole seafood-based meal context, as such approach enables a more realistic assessment of the risks that seafood can pose to consumers.
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Affiliation(s)
- Isa Marmelo
- Division of Aquaculture and Seafood Upgrading, Portuguese Institute for the Sea and Atmosphere, I.P. (IPMA), Avenida Doutor Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal; MARE - Marine and Environmental Sciences Centre, Laboratório Marítimo da Guia, Faculdade de Ciências da Universidade de Lisboa, Av. Nossa Senhora Do Cabo, 939, 2750-374, Cascais, Portugal.
| | - Vera Barbosa
- Division of Aquaculture and Seafood Upgrading, Portuguese Institute for the Sea and Atmosphere, I.P. (IPMA), Avenida Doutor Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal; Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Universidade Do Porto, Terminal de Cruzeiros Do Porto de Leixões, Avenida General Norton de Matos S/N, 4450-208, Matosinhos, Portugal.
| | - Ana Luísa Maulvault
- MARE - Marine and Environmental Sciences Centre, Laboratório Marítimo da Guia, Faculdade de Ciências da Universidade de Lisboa, Av. Nossa Senhora Do Cabo, 939, 2750-374, Cascais, Portugal; Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Universidade Do Porto, Terminal de Cruzeiros Do Porto de Leixões, Avenida General Norton de Matos S/N, 4450-208, Matosinhos, Portugal; UCIBIO-REQUIMTE, Department of Chemistry, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516, Caparica, Portugal.
| | - Maria Paula Duarte
- MEtRICs/DCTB, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516, Caparica, Portugal.
| | - António Marques
- Division of Aquaculture and Seafood Upgrading, Portuguese Institute for the Sea and Atmosphere, I.P. (IPMA), Avenida Doutor Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal; Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Universidade Do Porto, Terminal de Cruzeiros Do Porto de Leixões, Avenida General Norton de Matos S/N, 4450-208, Matosinhos, Portugal.
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19
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Oliveira H, Muniz JA, Bandarra NM, Castanheira I, Coelho IR, Delgado I, Gonçalves S, Lourenço HM, Motta C, Duarte MP, Nunes ML, Gonçalves A. Effects of Industrial Boiling on the Nutritional Profile of Common Octopus ( Octopus vulgaris). Foods 2019; 8:E411. [PMID: 31547442 PMCID: PMC6770756 DOI: 10.3390/foods8090411] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 09/06/2019] [Accepted: 09/10/2019] [Indexed: 11/16/2022] Open
Abstract
Industrial cooking of common octopus (Octopus vulgaris) under well-established procedures is advantageous for current consumers, which demand healthy and convenient food. This work aimed to evaluate the effect of industrial water boiling, without the addition of salt, on the nutritional profile of common octopus. True retentions (TRs) were calculated for essential nutrients and toxic elements. After boiling, the moisture content decreased, resulting in a concentration of other constituents (protein, fat, fatty acids, majority of amino acids, phosphorus, zinc, and iodine). High TRs were obtained for some essential nutrients: 90.2% (eicosapentaenoic acid, EPA), 89.1% (docosahexaenoic acid, DHA), ≥74.6% (indispensable amino acids, IAA), and 86.8% (iodine). In both raw and boiled octopus, polyunsaturated fatty acids (252.2 and 425.1 mg/100 g), leucine (940.1 and 1613.4 mg/100 g), glutamate (1971.5 and 3257.1 mg/100 g), sodium (393.3 and 332.5 mg/100 g), and zinc (12.6 and 16.6 mg/kg) were, respectively, the most abundant fatty acids, IAA, dispensable amino acids, macro, and micro elements. Cadmium, lead, and mercury levels found in boiled octopus were 0.02, 0.10, and 0.08 mg/kg, respectively. The consumption of 150 g (usual portion) of boiled octopus is advisable because it contributes to significant daily intakes of EPA+DHA (>100%), selenium (75.6%), and iodine (12.4%), and 25% of the daily adequate intake of sodium for adults.
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Affiliation(s)
- Helena Oliveira
- IPMA, I.P., Portuguese Institute for the Sea and Atmosphere, Division of Aquaculture and Upgrading, Av. Alfredo Magalhães Ramalho 6, 1495-165 Lisboa, Portugal.
- CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208 Matosinhos, Portugal.
| | - José António Muniz
- IPMA, I.P., Portuguese Institute for the Sea and Atmosphere, Division of Aquaculture and Upgrading, Av. Alfredo Magalhães Ramalho 6, 1495-165 Lisboa, Portugal.
- MEtRICs/DCTB, Faculty of Sciences and Technology, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
| | - Narcisa Maria Bandarra
- IPMA, I.P., Portuguese Institute for the Sea and Atmosphere, Division of Aquaculture and Upgrading, Av. Alfredo Magalhães Ramalho 6, 1495-165 Lisboa, Portugal.
| | - Isabel Castanheira
- INSA, I.P., National Institute of Health Dr. Ricardo Jorge, Food and Nutrition Department, Av. Padre Cruz, 1649-016 Lisboa, Portugal.
| | - Inês Ribeiro Coelho
- INSA, I.P., National Institute of Health Dr. Ricardo Jorge, Food and Nutrition Department, Av. Padre Cruz, 1649-016 Lisboa, Portugal.
| | - Inês Delgado
- INSA, I.P., National Institute of Health Dr. Ricardo Jorge, Food and Nutrition Department, Av. Padre Cruz, 1649-016 Lisboa, Portugal.
| | - Susana Gonçalves
- IPMA, I.P., Portuguese Institute for the Sea and Atmosphere, Division of Aquaculture and Upgrading, Av. Alfredo Magalhães Ramalho 6, 1495-165 Lisboa, Portugal.
| | - Helena Maria Lourenço
- IPMA, I.P., Portuguese Institute for the Sea and Atmosphere, Division of Aquaculture and Upgrading, Av. Alfredo Magalhães Ramalho 6, 1495-165 Lisboa, Portugal.
| | - Carla Motta
- INSA, I.P., National Institute of Health Dr. Ricardo Jorge, Food and Nutrition Department, Av. Padre Cruz, 1649-016 Lisboa, Portugal.
| | - Maria Paula Duarte
- MEtRICs/DCTB, Faculty of Sciences and Technology, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
| | - Maria Leonor Nunes
- CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208 Matosinhos, Portugal.
| | - Amparo Gonçalves
- IPMA, I.P., Portuguese Institute for the Sea and Atmosphere, Division of Aquaculture and Upgrading, Av. Alfredo Magalhães Ramalho 6, 1495-165 Lisboa, Portugal.
- CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208 Matosinhos, Portugal.
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20
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Mandume CMC, Bandarra NM, Raimundo J, Lourenço HM, Gonçalves S, Ventura M, Delgado I, Rego A, Motta C, Castanheira I, Nunes ML, Duarte MP. Chemical Composition, Nutritional Value, and Safety of Cooked Female Chaceon Maritae from Namibe (Angola). Foods 2019; 8:foods8070227. [PMID: 31247984 PMCID: PMC6678160 DOI: 10.3390/foods8070227] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 06/14/2019] [Accepted: 06/24/2019] [Indexed: 12/11/2022] Open
Abstract
Despite being highly appreciated and consumed, the nutritional value of Chaceon maritae from Namibe (Angola) had never been studied. In the present work, edible tissues (muscle, ovaries, and hepatopancreas) of boiled female C. maritae caught off Namibe coast in two distinct seasons were analyzed in terms of proximate chemical composition (fat, ash, protein, and moisture), fatty acid and amino acid profiles, cholesterol, essential minerals (macro and trace) and toxic elements. Results showed that, in both seasons, C. maritae muscle was a valuable source of protein, essential amino acids, polyunsaturated fatty acids, and essential elements, especially zinc, selenium, iodine, and copper. Ovaries and hepatopancreas are also good sources of protein, but were richer in fat, particularly when caught in October. Ovarian fat is rich in polyunsaturated fatty acids and that of hepatopancreas has higher values of monounsaturated and saturated fatty acids. Hepatopancreas and ovaries are also good sources of copper and, especially ovaries, of zinc. Moreover, in both seasons, all the edible tissues of C. maritae analyzed presented very low contents of heavy metals (mercury, cadmium, lead, and arsenic).
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Affiliation(s)
- Celso Manuel Cristovão Mandume
- MEtRICs/DCTB, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- IPMA-Instituto Português do Mar e da Atmosfera, R. Alfredo Magalhães Ramalho 6, 1495-165 Algés, Portugal
| | - Narcisa M Bandarra
- IPMA-Instituto Português do Mar e da Atmosfera, R. Alfredo Magalhães Ramalho 6, 1495-165 Algés, Portugal
| | - Joana Raimundo
- IPMA-Instituto Português do Mar e da Atmosfera, R. Alfredo Magalhães Ramalho 6, 1495-165 Algés, Portugal
| | - Helena Maria Lourenço
- IPMA-Instituto Português do Mar e da Atmosfera, R. Alfredo Magalhães Ramalho 6, 1495-165 Algés, Portugal
| | - Susana Gonçalves
- IPMA-Instituto Português do Mar e da Atmosfera, R. Alfredo Magalhães Ramalho 6, 1495-165 Algés, Portugal
| | - Marta Ventura
- INSA-Instituto Nacional de Saúde Doutor Ricardo Jorge, Av. Padre Cruz, 1600-407 Lisboa, Portugal
| | - Inês Delgado
- INSA-Instituto Nacional de Saúde Doutor Ricardo Jorge, Av. Padre Cruz, 1600-407 Lisboa, Portugal
| | - Andreia Rego
- INSA-Instituto Nacional de Saúde Doutor Ricardo Jorge, Av. Padre Cruz, 1600-407 Lisboa, Portugal
| | - Carla Motta
- INSA-Instituto Nacional de Saúde Doutor Ricardo Jorge, Av. Padre Cruz, 1600-407 Lisboa, Portugal
| | - Isabel Castanheira
- INSA-Instituto Nacional de Saúde Doutor Ricardo Jorge, Av. Padre Cruz, 1600-407 Lisboa, Portugal
| | - Maria Leonor Nunes
- CIIMAR, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N 4450-208 Matosinhos, Portugal
| | - Maria Paula Duarte
- MEtRICs/DCTB, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal.
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21
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Direito R, Rocha J, Lima A, Gonçalves MM, Duarte MP, Mateus V, Sousa C, Fernandes A, Pinto R, Boavida Ferreira R, Sepodes B, Figueira ME. Reduction of Inflammation and Colon Injury by a Spearmint Phenolic Extract in Experimental Bowel Disease in Mice. Medicines (Basel) 2019; 6:medicines6020065. [PMID: 31174376 PMCID: PMC6630206 DOI: 10.3390/medicines6020065] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 05/30/2019] [Accepted: 06/03/2019] [Indexed: 02/07/2023]
Abstract
Background: Inflammatory Bowel Diseases (IBD) encompasses both Crohn’s Disease and Ulcerative Colitis, known to be connected to an enlarged risk for developing colorectal cancer (CRC). Spearmint (Mentha spicata L.) is a Mediterranean plant used as an aromatic agent, and studies have mainly focused on the essential oil suggesting an anti-inflammatory activity. This work aimed to perform a preliminary screening of the in vivo anti-inflammatory effects of a spearmint phenolic extract in an acute inflammation model, in a chronic inflammation model of colitis, and also study the effects in vitro on a colon cancer model. Methods: Spearmint extract was administered to rats of a paw oedema model (induced by carrageenan) and to mice from a TNBS-induced colitis model in parallel with studies using HT-29 CRC cells. Results: Administration of the extract led to reduced paw inflammation, reduction of colon injury and inflammation, with attenuation of histological markers, and reduction of iNOS expression. It repressed the in vitro movement of HT-29 cells in a wound healing assay. Conclusions: These findings suggest that spearmint extract exhibits acute and chronic anti-inflammatory activity and is able to inhibit migration of cancer cells, suggesting a potential role in the supplementary therapy of IBD patients.
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Affiliation(s)
- Rosa Direito
- Research Institute for Medicines and Pharmaceutical Sciences (iMed.UL), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisbon, Portugal.
| | - João Rocha
- Research Institute for Medicines and Pharmaceutical Sciences (iMed.UL), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisbon, Portugal.
| | - Ana Lima
- Disease & Stress Biology Group, LEAF, Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisbon, Portugal.
| | - Maria Margarida Gonçalves
- Unidade de Biotecnologia Ambiental, Universidade Nova de Lisboa, Quinta da Torre, 2829-516 Monte da Caparica, Portugal.
| | - Maria Paula Duarte
- Unidade de Biotecnologia Ambiental (UBiA), Grupo de Disciplinas da Ecologia da Hidrosfera, Faculdade de Ciências e Tecnologia, FCT, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
| | - Vanessa Mateus
- Research Institute for Medicines and Pharmaceutical Sciences (iMed.UL), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisbon, Portugal.
- H&TRC-Health and Technology Research Center, ESTeSL-Lisbon School of Health Technology, Instituto Politécnico de Lisboa, 1990-096 Lisbon, Portugal.
| | - Catarina Sousa
- Research Institute for Medicines and Pharmaceutical Sciences (iMed.UL), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisbon, Portugal.
| | - Adelaide Fernandes
- Research Institute for Medicines and Pharmaceutical Sciences (iMed.UL), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisbon, Portugal.
| | - Rui Pinto
- Research Institute for Medicines and Pharmaceutical Sciences (iMed.UL), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisbon, Portugal.
- Joaquim Chaves Saúde, Dr Joaquim Chaves Lab Analises Clínicas, 1495-068 Miraflores-Algés, Portugal.
| | - Ricardo Boavida Ferreira
- Disease & Stress Biology Group, LEAF, Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisbon, Portugal.
| | - Bruno Sepodes
- Research Institute for Medicines and Pharmaceutical Sciences (iMed.UL), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisbon, Portugal.
| | - Maria-Eduardo Figueira
- Research Institute for Medicines and Pharmaceutical Sciences (iMed.UL), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisbon, Portugal.
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Souza VGL, Pires JR, Rodrigues PF, Lopes AA, Fernandes FM, Duarte MP, Coelhoso IM, Fernando AL. Bionanocomposites of chitosan/montmorillonite incorporated with Rosmarinus officinalis essential oil: Development and physical characterization. Food Packag Shelf Life 2018. [DOI: 10.1016/j.fpsl.2018.03.009] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Borda d’ Água R, Branquinho R, Duarte MP, Maurício E, Fernando AL, Martins R, Fortunato E. Efficient coverage of ZnO nanoparticles on cotton fibres for antibacterial finishing using a rapid and low cost in situ synthesis. NEW J CHEM 2018. [DOI: 10.1039/c7nj03418k] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Antibacterial fabric using a simple, reproducible and low cost technique to synthesize high-quality ZnONPs was prepared and characterized.
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Affiliation(s)
- Raquel Borda d’ Água
- CENIMAT/i3N Departamento de Ciência dos Materiais
- Faculdade de Ciências e Tecnologia (FCT)
- Universidade NOVA de Lisboa (UNL)
- and CEMOP/UNINOVA
- 2829-516 Caparica
| | - Rita Branquinho
- CENIMAT/i3N Departamento de Ciência dos Materiais
- Faculdade de Ciências e Tecnologia (FCT)
- Universidade NOVA de Lisboa (UNL)
- and CEMOP/UNINOVA
- 2829-516 Caparica
| | - Maria Paula Duarte
- MEtRICs/DCTB
- Faculdade de Ciências e Tecnologia (FCT)
- Universidade NOVA de Lisboa (UNL)
- 2829-516 Caparica
- Portugal
| | | | - Ana Luísa Fernando
- MEtRICs/DCTB
- Faculdade de Ciências e Tecnologia (FCT)
- Universidade NOVA de Lisboa (UNL)
- 2829-516 Caparica
- Portugal
| | - Rodrigo Martins
- CENIMAT/i3N Departamento de Ciência dos Materiais
- Faculdade de Ciências e Tecnologia (FCT)
- Universidade NOVA de Lisboa (UNL)
- and CEMOP/UNINOVA
- 2829-516 Caparica
| | - Elvira Fortunato
- CENIMAT/i3N Departamento de Ciência dos Materiais
- Faculdade de Ciências e Tecnologia (FCT)
- Universidade NOVA de Lisboa (UNL)
- and CEMOP/UNINOVA
- 2829-516 Caparica
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Duarte MP, Palma BB, Gilep AA, Laires A, Oliveira JS, Usanov SA, Rueff J, Kranendonk M. The stimulatory role of human cytochrome b5 in the bioactivation activities of human CYP1A2, 2A6 and 2E1: a new cell expression system to study cytochrome P450-mediated biotransformation (a corrigendum report on Duarte et al. (2005) Mutagenesis 20, 93-100). Mutagenesis 2006; 22:75-81. [PMID: 17158518 DOI: 10.1093/mutage/gel054] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
This corrigendum report describes the study of the comparison of human cytochrome b(5) (b(5)) with rat b(5) when coupled with human cytochrome P450 CYP1A2, 2A6 or 2E1. Results indicate a role of the N-terminal part of b(5) in the coupling with CYP. Indeed, the plasmid pLCM-b(5)-RED used in our former study on b(5) [Duarte et al. (2005) Mutagenesis, 20(2), 193-100] erroneously contained rat b(5). Plasmid pLCM-b(5)-RED was corrected with human b(5) and subsequently all experimental work was repeated as was described for the rat b(5) plasmid. Although absolute values of contents and activities were lower, all key-findings as found for rat b(5) could be confirmed using human b(5). The physiological relevant co-expression of the members of the cytochrome P450 complex, CYP, NADPH-cytochrome P450 oxidoreductase (RED) and human b(5) could be demonstrated in the different BTC strains, as was found before. The stimulatory effect of human b(5) on the activity of CYP1A2, CYP2A6 and CYP2E1 was in general similar, when compared with rat b(5), though less quantitatively pronounced. This was both the case when using membrane preparations as well as by the bioactivation of procarcinogens using the bacterial mutagenicity assay. Human b(5) stimulated the bioactivation of all compounds as described for rat b(5), except for CYP1A2 mediated bioactivation of 2-aminoanthracene (2AA), which was not stimulated by human b(5). All other main findings of the effect of rat b(5) were confirmed with human b(5), i.e. for CYP2A6: N-nitrosodiethylamine (NNdEA): approximately 14-fold increase ( approximately 23-fold with rat b(5)) and 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK): approximately 3-fold ( approximately 9-fold with rat b(5)); for CYP2E1: NNdEA: approximately 1.5-fold increase ( approximately 3-fold with rat b(5)); NNK: no mutagenicity with or without human b(5). Both CYP2A6 and CYP2E1 demonstrated total dependence on the presence of human b(5) for N-nitrosodi-n-propylamine (NNdPA) mutagenicity, as was shown before with rat b(5).
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Affiliation(s)
- Maria Paula Duarte
- Department of Genetics, Faculty of Medical Sciences, Universidade Nova de Lisboa Rua da Junqueira 96, 1349-008 Lisbon, Portugal
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25
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Duarte MP, Palma BB, Laires A, Oliveira JS, Rueff J, Kranendonk M. Escherichia coli BTC, a human cytochrome P450 competent tester strain with a high sensitivity towards alkylating agents: involvement of alkyltransferases in the repair of DNA damage induced by aromatic amines. Mutagenesis 2005; 20:199-208. [PMID: 15843388 DOI: 10.1093/mutage/gei028] [Citation(s) in RCA: 17] [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: 11/12/2022] Open
Abstract
We report here on strain BTC, a new Escherichia coli mutagenicity tester strain for the expression of human cytochrome P450 (CYP) with an enhanced sensitivity for the detection of alkylating agents. This strain was developed first through knocking out of the genes ada and ogt in our previously developed strain BMX100, resulting in PD1000. Strain PD1000 demonstrated a significantly higher detection sensitivity towards several alkylating agents such as N-nitrosodiethylamine (NNdEA), N-nitrosodi-n-propylamine (NNdPA), 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) and N-methyl-N'-nitro-N-nitrosoguanidine (MNNG). Unexpectedly, this strain also showed an enhanced sensitivity towards 2-aminoanthracene (2AA), 4-aminobiphenyl (4AbPh), 2-aminofluorene (2AF) and 2-nitroanthracene (2NA) mutagenicity. Subsequently, our previously developed bi-plasmid system for the co-expression of a specific human CYP form (CYP1A2, 2A6 or 2E1) with human NADPH-cytochrome P450 reductase (RED) was introduced in strain PD1000, resulting in strains BTC1A2, BTC2A6 and BTC2E1, respectively. The mutagenicity of NNdEA and NNK was successfully detected with strains BTC2A6 and BTC2E1 and with strains BTC1A2 and BTC2A6, respectively, in contrast to the corresponding MTC (ada+ ogt+) CYP strains. The (ada- ogt-) deficient strain BTC1A2 also showed an enhanced sensitivity towards the detection of 2AA mutagenicity, when compared with the proficient repair strain MTC1A2. This enhancement was much more pronounced with strain PD1000 using the rat liver S9 fraction than with strain BTC1A2.
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Affiliation(s)
- Maria Paula Duarte
- Department of Genetics, Faculty of Medical Sciences, Universidade Nova de Lisboa, Rua da Junqueira 96, 1349-008 Lisboa, Portugal
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26
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Duarte MP, Palma BB, Gilep AA, Laires A, Oliveira JS, Usanov SA, Rueff J, Kranendonk M. The stimulatory role of human cytochrome b5 in the bioactivation activities of human CYP1A2, 2A6 and 2E1: a new cell expression system to study cytochrome P450 mediated biotransformation. Mutagenesis 2005; 20:93-100. [PMID: 15728263 DOI: 10.1093/mutage/gei012] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Cytochrome b(5) (b(5)) is increasingly recognized to be of importance for specific cytochrome P450 (CYP) activities. We developed human b(5)/CYP-competent mutagenicity tester bacteria to study the role of b(5) in the bioactivation activity of human CYP. These new tester bacteria were derived from the previously engineered human CYP-competent Escherichia coli K12 tester strain MTC, containing a bi-plasmid system for the co-expression of a specific CYP form (CYP1A2, 2A6 or 2E1) with human b(5), and human NADPH cytochrome P450 reductase (RED), resulting in the strain BTC-b(5)-1A2, BTC-b(5)-2A6 and BTC-b(5)-2E1, respectively. The relative content of b(5) with CYP and RED in these three BTC-b(5)-CYP strains demonstrated physiologically relevant co-expression levels and typical CYP-specific activities could be determined with their specific chemical probes. These strains were applied in mutagenicity assays along with their corresponding b(5)-void strains to determine the effect of b(5) on the CYP1A2-, CYP2A6- and CYP2E1-mediated bioactivation of several promutagens. For CYP1A2, of the 5 compounds tested [2-aminoanthracene (2AA), 1-aminopyrene, 6-aminochrysene, 2-amino-3-methylimidazo(4,5-f)quinoline and 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK)], only the mutagenicity of 2AA was slightly increased ( approximately 1.5-fold) in the presence of b(5). The CYP2E1- and CYP2A6-dependent mutagenicity of N-nitrosodiethylamine increased approximately 3- and 23-fold, respectively when the bacteria contained b(5). The CYP2A6-mediated mutagenicity of NNK increased approximately 9-fold when co-expressed with b(5). The stimulatory effect of b(5) on the bioactivation of N-nitrosodi-n-propylamine was most striking. The mutagenicity of this procarcinogen was completely dependent on the co-expression of b(5) with CYP2A6 or CYP2E1. This demonstrates the prominent role of b(5) in the bioactivation of this carcinogen.
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Affiliation(s)
- Maria Paula Duarte
- Department of Genetics, Faculty of Medical Sciences, Universidade Nova de Lisboa, Rua da Junqueira 96, 1349-008 Lisboa, Portugal
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Gigante B, Santos C, Silva AM, Curto MJM, Nascimento MSJ, Pinto E, Pedro M, Cerqueira F, Pinto MM, Duarte MP, Laires A, Rueff J, Gonçalves J, Pegado MI, Valdeira ML. Catechols from abietic acid synthesis and evaluation as bioactive compounds. Bioorg Med Chem 2003; 11:1631-8. [PMID: 12659748 DOI: 10.1016/s0968-0896(03)00063-4] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Catechols from abietic acid were prepared by a short and good yielding chemical process and further evaluated for several biological activities namely, antifungal, antitumoral, antimutagenic, antiviral, antiproliferative and inhibition of nitric oxide. Their properties were compared with those of carnosic acid (6), a naturally occurring catechol with an abietane skeleton and known to possess potent antioxidant activity, as well as anticancer and antiviral properties. From all the synthetic catechols tested compound 2 showed the best activities, stronger than carnosic acid.
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Affiliation(s)
- B Gigante
- INETI, Departamento de Tecnologia de Indústrias Qui;micas, Estrada do Paço do Lumiar, 22, 1649-038 Lisbon, Portugal.
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28
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Duarte MP, Farias ML, Coelho HS, Mendonça LM, Stabnov LM, do Carmo d Oliveira M, Lamy RA, Oliveira DS. Calcium-parathyroid hormone-vitamin D axis and metabolic bone disease in chronic viral liver disease. J Gastroenterol Hepatol 2001; 16:1022-7. [PMID: 11595067 DOI: 10.1046/j.1440-1746.2001.02561.x] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND The main process involved in hepatic osteodystrophy seems to be osteoporosis, but decreased 25-hydroxylation of vitamin D might lead to osteomalacia and secondary hyperparathyroidism. METHODS AND RESULTS We studied bone mineral density (BMD) by using DEXA-Expert Lunar, biochemical markers of bone turnover and calcium-parathyroid hormone (PTH)-vitamin D axis in 100 patients with chronic viral hepatitis secondary to hepatitis C virus: 49 non-cirrhotic (NCir) and 51 with cirrhosis (Cir) confirmed by liver biopsy and/or clinical and biochemical features. When compared to the age-matched population, 25% of the patients had low BMD at the lumbar spine (LS), 26.2% at Ward's triangle, 15.5% at the femoral neck (FN), and 20.2% at the trochanter. No difference was found either between Cir and NCir groups or between sexes. Urinary N-telopeptide was increased in 31.86% of the patients, and negatively correlated with BMD at the LS and trochanter (P < 0.02). Serum bone-specific alkaline phosphatase was elevated in 21% of the patients and negatively correlated with BMD at the trochanter and Ward's triangle (P < 0.02). Fasting 25-hydroxyvitamin D was low in only three Cir patients, with no difference between the Cir and NCir groups, but it was higher in men (51.8 +/- 16.0 ng/mL) compared to women (40.4 +/- 14.4 ng/mL; P = 0.001). Fasting serum calcium was lower in Cir than NCir patients, P = 0.019. Fasting intact PTH was elevated in 42% of the patients, but the mean serum levels were similar in Cir and NCir groups. CONCLUSION We found no evidence of vitamin D deficiency, but cannot exclude the participation of PTH in the high bone turnover and bone loss in the population with chronic viral hepatitis.
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Affiliation(s)
- M P Duarte
- Division of Endocrinology, Hospital Universitário Clementino Fraga Filho, Federal University of Rio de Janeiro, Brazil.
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Duarte MP, Laires A, Gaspar J, Oliveira JS, Rueff J. Genotoxicity of instant coffee and of some phenolic compounds present in coffee upon nitrosation. Teratog Carcinog Mutagen 2000; 20:241-9. [PMID: 10910474 DOI: 10.1002/1520-6866(2000)20:4<241::aid-tcm6>3.0.co;2-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Instant coffee exhibits genotoxic activity upon nitrosation at acidic pH values in the Ames tester strain TA100. Using adsorption chromatography (Amberlit XAD-2) it was observed that the major fraction of molecules responsible for the genotoxic activity upon nitrosation was not retained on this resin, suggesting that the polar molecules present in instant coffee could be responsible for the genotoxicity observed upon nitrosation. Some phenolic molecules present in instant coffee (catechol, caffeic acid, and chlorogenic acid) were also genotoxic upon nitrosation under the same experimental conditions. The concentrations of nitrosatable phenolic compounds in the studied coffee were determined by HPLC and their contributions to the total genotoxicity observed were studied. The results obtained suggest that besides phenolic compounds other molecules were also involved in the genotoxicity of this beverage upon nitrosation. Teratogenesis Carcinog. Mutagen. 20:241-249, 2000.
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Affiliation(s)
- M P Duarte
- Department of Genetics, Faculty of Medical Sciences, New University of Lisbon, Lisbon, Portugal
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Abstract
Instant coffee exhibits direct genotoxic activity in the tester strains TA 98, 100, 102, 104 and YG 1024. In the Ames tester strain TA 100, the presence of S9 mix, S100 mix, S9 mix without cofactors led to a significant decrease of the genotoxicity observed. The decrease observed in the presence of S9 mix seems to be highly correlated with the catalase content of S9 mix. The genotoxicity of instant coffee detected in strain TA 100 was dependent on the pH, with higher genotoxic effects at pH values above neutrality. Also, dependent on the pH was the ability of some phenolic molecules present in coffee promoting the degradation of deoxyribose in the presence of Fe3+/EDTA. These results suggest that apart from other molecules present in instant coffee responsible for their genotoxicity in several short term assays, phenolic molecules could also be implicated in the genotoxicity of coffee, via reactive oxygen species arising from its auto-oxidation.
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Affiliation(s)
- M P Duarte
- Department of Genetics, Faculty of Medical Sciences, New University of Lisbon, R. da Junqueira 96, P-1349-008, Lisbon, Portugal
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