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Almeida AR, Morais WA, Oliveira ND, Silva WCG, Gomes APB, Espindola LS, Araujo MO, Araujo RM, Albernaz LC, De Sousa DP, Aragão CFS, Ferreira LS. Nanoemulsions and Solid Microparticles Containing Pentyl Cinnamate to Control Aedes aegypti. Int J Mol Sci 2023; 24:12141. [PMID: 37569517 PMCID: PMC10419096 DOI: 10.3390/ijms241512141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/09/2023] [Accepted: 06/20/2023] [Indexed: 08/13/2023] Open
Abstract
The Aedes aegypti mosquito is a vector of severe diseases with high morbidity and mortality rates. The most commonly used industrial larvicides have considerable toxicity for non-target organisms. This study aimed to develop and evaluate liquid and solid carrier systems to use pentyl cinnamate (PC), derived from natural sources, to control Ae. aegypti larvae. The liquid systems consisting of nanoemulsions with different lecithins systems were obtained and evaluated for stability over 30 days. Microparticles (MPs) were obtained by the spray drying of the nanoemulsions using maltodextrin as an adjuvant. Thermal, NMR and FTIR analysis indicated the presence of PC in microparticles. Indeed, the best nanoemulsion system was also the most stable and generated the highest MP yield. The PC larvicidal activity was increased in the PC nanoemulsion system. Therefore, it was possible to develop, characterize and obtain PC carrier systems active against Ae. aegypti larvae.
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Affiliation(s)
- Addison R. Almeida
- Laboratório de Farmacotécnica, Department of Pharmacy, Federal University of Rio Grande do Norte, Natal 59012-570, Brazil; (A.R.A.); (W.A.M.); (N.D.O.); (W.C.G.S.)
- Laboratório de Controle de Qualidade de Medicamentos, Department of Pharmacy, Federal University of Rio Grande do Norte, Natal 59012-570, Brazil; (A.P.B.G.); (C.F.S.A.)
| | - Waldenice A. Morais
- Laboratório de Farmacotécnica, Department of Pharmacy, Federal University of Rio Grande do Norte, Natal 59012-570, Brazil; (A.R.A.); (W.A.M.); (N.D.O.); (W.C.G.S.)
| | - Nicolas D. Oliveira
- Laboratório de Farmacotécnica, Department of Pharmacy, Federal University of Rio Grande do Norte, Natal 59012-570, Brazil; (A.R.A.); (W.A.M.); (N.D.O.); (W.C.G.S.)
- Laboratório de Controle de Qualidade de Medicamentos, Department of Pharmacy, Federal University of Rio Grande do Norte, Natal 59012-570, Brazil; (A.P.B.G.); (C.F.S.A.)
| | - Wilken C. G. Silva
- Laboratório de Farmacotécnica, Department of Pharmacy, Federal University of Rio Grande do Norte, Natal 59012-570, Brazil; (A.R.A.); (W.A.M.); (N.D.O.); (W.C.G.S.)
| | - Ana P. B. Gomes
- Laboratório de Controle de Qualidade de Medicamentos, Department of Pharmacy, Federal University of Rio Grande do Norte, Natal 59012-570, Brazil; (A.P.B.G.); (C.F.S.A.)
| | - Laila S. Espindola
- Laboratory of Phamacognosy, Brasília University, Campus Universitário Darcy Ribeiro, Brasília 70910-900, Brazil; (L.S.E.); (L.C.A.)
| | - Marianna O. Araujo
- Laboratory of Pharmaceutical Chemistry, Federal University of Paraíba, João Pessoa 58050-085, Brazil; (M.O.A.); (D.P.D.S.)
| | - Renata M. Araujo
- Chemistry Institute, Federal University of Rio Grande do Norte, Natal 59072-970, Brazil;
| | - Lorena C. Albernaz
- Laboratory of Phamacognosy, Brasília University, Campus Universitário Darcy Ribeiro, Brasília 70910-900, Brazil; (L.S.E.); (L.C.A.)
| | - Damião P. De Sousa
- Laboratory of Pharmaceutical Chemistry, Federal University of Paraíba, João Pessoa 58050-085, Brazil; (M.O.A.); (D.P.D.S.)
| | - Cicero F. S. Aragão
- Laboratório de Controle de Qualidade de Medicamentos, Department of Pharmacy, Federal University of Rio Grande do Norte, Natal 59012-570, Brazil; (A.P.B.G.); (C.F.S.A.)
| | - Leandro S. Ferreira
- Laboratório de Controle de Qualidade de Medicamentos, Department of Pharmacy, Federal University of Rio Grande do Norte, Natal 59012-570, Brazil; (A.P.B.G.); (C.F.S.A.)
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Mannochio-Russo H, Nunes WDG, Almeida RF, Albernaz LC, Espindola LS, Bolzani VS. Old Meets New: Mass Spectrometry-Based Untargeted Metabolomics Reveals Unusual Larvicidal Nitropropanoyl Glycosides from the Leaves of Heteropterys umbellata. J Nat Prod 2023; 86:621-632. [PMID: 36848642 DOI: 10.1021/acs.jnatprod.2c00788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The Aedes aegypti (Diptera: Culicidae) mosquito is the vector of several arboviruses in tropical and subtropical areas of the globe, and synthetic pesticides remain the most widely used combat strategy. This study describes the investigation of secondary metabolites with larvicidal activity from the Malpighiaceae taxon using a metabolomic and bioactivity-based approach. The workflow initially consisted of a larvicidal screening of 394 extracts from the leaves of 197 Malpighiaceae samples, which were extracted using solvents of different polarity, leading to the selection of Heteropterys umbellata for the identification of active compounds. By employing untargeted mass spectrometry-based metabolomics and multivariate analyses (PCA and PLS-DA), it was possible to determine that the metabolic profiles of different plant organs and collection sites differed significantly. A bioguided approach led to the isolation of isochlorogenic acid A (1) and the nitropropanoyl glucosides karakin (2) and 1,2,3,6-tetrakis-O-[3-nitropropanoyl]-beta-glucopyranose (3). These nitro compounds exhibited larvicidal activity, possibly potentialized by synergistic effects of their isomers in chromatographic fractions. Additionally, targeted quantification of the isolated compounds in different extracts corroborated the untargeted results from the statistical analyses. These results support a metabolomic-guided approach in combination with classical phytochemical techniques to search for natural larvicidal compounds for arboviral vector control.
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Affiliation(s)
- Helena Mannochio-Russo
- NuBBE, Department of Biochemistry and Organic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), SP, Araraquara, SP 14800-901, Brazil
| | - Wilhan D G Nunes
- Federal Institute of Education, Science and Technology of São Paulo (IFSP), Ilha Solteira, SP 15385-000, Brazil
| | - Rafael F Almeida
- Universidade Estadual de Goiás, Herbário JAR, Quirinópolis, GO 75860-000, Brazil
| | - Lorena C Albernaz
- Laboratório de Farmacognosia, Universidade de Brasília (UnB), Campus Universitário Darcy Ribeiro, Asa Norte, Brasília, DF 70910-900, Brazil
| | - Laila S Espindola
- Laboratório de Farmacognosia, Universidade de Brasília (UnB), Campus Universitário Darcy Ribeiro, Asa Norte, Brasília, DF 70910-900, Brazil
| | - Vanderlan S Bolzani
- NuBBE, Department of Biochemistry and Organic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), SP, Araraquara, SP 14800-901, Brazil
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Magalhães NMG, Achee NL, Grieco JP, Espindola LS. Evaluation of the High-Throughput Screening System for Assessing the Behavioral Response of Female Aedes aegypti to Natural Products. J Am Mosq Control Assoc 2022; 38:99-103. [PMID: 35588180 DOI: 10.2987/21-7039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
As part of an arbovirus vector control strategy, chemical control continues to be a mainstay in mitigating the burden of disease. The current arsenal of chemicals used for this purpose, however, are becoming challenged rapidly because of issues of insecticide resistance and environmental pressure. Newer, environmentally friendly actives are of interest to supplement aging chemistries; therefore efforts to screen compounds for insecticidal activity are warranted. This study evaluated the efficacy of the high-throughput screening system (HITSS) for measuring the behavior-modifying actions of Brazilian Cerrado plant extracts, oils, and other compounds against Aedes aegypti. Different concentrations were evaluated, with 8 of 34 samples tested demonstrating either contact irritancy, spatial repellency, or attractiveness. We concluded several natural products screened in this study showed promise for use against mosquito vectors like Ae. aegypti, and that the compact modular HITSS assay constitutes a robust tool for measuring the behavioral responses of mosquitoes in the search for novel insecticides derived from natural products.
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Rezende-Teixeira P, Dusi RG, Jimenez PC, Espindola LS, Costa-Lotufo LV. What can we learn from commercial insecticides? Efficacy, toxicity, environmental impacts, and future developments. Environ Pollut 2022; 300:118983. [PMID: 35151812 DOI: 10.1016/j.envpol.2022.118983] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 01/26/2022] [Accepted: 02/08/2022] [Indexed: 05/27/2023]
Abstract
Worldwide pesticide usage was estimated in up to 3.5 million tons in 2020. The number of approved products varies among different countries, however, in Brazil, there are nearly 5000 of such products available. Among them, insecticides correspond to a group of mounting importance for controlling crop pests and disease-associated vectors in public health. Unfortunately, resistance to commercially approved insecticides is commonly observed, limiting the use of these products. Thus, the search for more effective and environmentally friendly products is both a challenge and a necessity since several insecticides are no longer allowed in many countries. In this review, we discuss the historical strategies used in the development of modern insecticides, including chemical structure alterations, mechanism of action and their impact on insecticidal activity. The environmental impact of each pesticide class is also discussed, with persistence data and activity on non-target organisms, along with the human toxicological effect. By tracing the historical route of discovery and development of blockbuster pesticides like DDT, pyrethroids and organophosphates, we also aim to categorize and relate the successful chemical alterations and novel pesticide development strategies that resulted in safer alternatives. A brief discussion on the Brazilian registration procedure and a perspective of insecticides currently approved in the country was also included.
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Affiliation(s)
- Paula Rezende-Teixeira
- Laboratório de Farmacologia Marinha, Departamento de Farmacologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, 05508-900, São Paulo, SP, Brazil
| | - Renata G Dusi
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, 70910-900, Brazil
| | - Paula C Jimenez
- Laboratório de Bioprospecção de Organismos Marinhos, Instituto do Mar, Universidade Federal de São Paulo, Santos, SP, Brazil
| | - Laila S Espindola
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, 70910-900, Brazil
| | - Letícia V Costa-Lotufo
- Laboratório de Farmacologia Marinha, Departamento de Farmacologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, 05508-900, São Paulo, SP, Brazil.
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Aires RB, Soares AADSM, Gomides APM, Nicola AM, Teixeira-Carvalho A, da Silva DLM, de Gois ET, Xavier FD, Martins FP, Santos GPJ, Schulte HL, Luz IS, Espindola LS, do Amaral LR, Felicori LF, Naves LA, de Carvalho MRM, Gomes MDS, Nóbrega OT, Albuquerque P, Fontes W, Gomes CM, Kurizky PS, Albuquerque CP, Martins-Filho OA, da Mota LMH. Thromboelastometry demonstrates endogenous coagulation activation in nonsevere and severe COVID-19 patients and has applicability as a decision algorithm for intervention. PLoS One 2022; 17:e0262600. [PMID: 35030224 PMCID: PMC8759688 DOI: 10.1371/journal.pone.0262600] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 12/28/2021] [Indexed: 12/17/2022] Open
Abstract
In patients with severe forms of COVID-19, thromboelastometry has been reported to display a hypercoagulant pattern. However, an algorithm to differentiate severe COVID-19 patients from nonsevere patients and healthy controls based on thromboelastometry parameters has not been developed. Forty-one patients over 18 years of age with positive qRT-PCR for SARS-CoV-2 were classified according to the severity of the disease: nonsevere (NS, n = 20) or severe (S, n = 21). A healthy control (HC, n = 9) group was also examined. Blood samples from all participants were tested by extrinsic (EXTEM), intrinsic (INTEM), non-activated (NATEM) and functional assessment of fibrinogen (FIBTEM) assays of thromboelastometry. The thrombodynamic potential index (TPI) was also calculated. Severe COVID-19 patients exhibited a thromboelastometry profile with clear hypercoagulability, which was significantly different from the NS and HC groups. Nonsevere COVID-19 cases showed a trend to thrombotic pole. The NATEM test suggested that nonsevere and severe COVID-19 patients presented endogenous coagulation activation (reduced clotting time and clot formation time). TPI data were significantly different between the NS and S groups. The maximum clot firmness profile obtained by FIBTEM showed moderate/elevated accuracy to differentiate severe patients from NS and HC. A decision tree algorithm based on the FIBTEM-MCF profile was proposed to differentiate S from HC and NS. Thromboelastometric parameters are a useful tool to differentiate the coagulation profile of nonsevere and severe COVID-19 patients for therapeutic intervention purposes.
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Affiliation(s)
- Rodrigo B. Aires
- Programa de Pós-graduação em Ciências Médicas da Faculdade de Medicina da Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
- Serviço de Anestesiologia, Hospital Santa Lúcia Sul, Brasília, Distrito Federal, Brazil
- * E-mail: (RBA); (PSK)
| | - Alexandre A. de S. M. Soares
- Programa de Pós-graduação em Ciências Médicas da Faculdade de Medicina da Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
| | - Ana Paula M. Gomides
- Faculdade de Ciências da Saúde, Centro Universitário de Brasília, Brasília, Distrito Federal, Brazil
| | - André M. Nicola
- Programa de Pós-graduação em Ciências Médicas da Faculdade de Medicina da Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
| | - Andréa Teixeira-Carvalho
- Grupo Integrado de Pesquisa em Biomarcadores, Fundação Oswaldo Cruz (FIOCRUZ), Belo Horizonte, Minas Gerais, Brazil
| | - Dayde Lane M. da Silva
- Departamento de Farmácia, Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
| | - Eliana T. de Gois
- Programa de Pós-graduação em Ciências Médicas da Faculdade de Medicina da Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
- Unidade de Clínica Médica, Hospital Regional do Gama (HRG), Brasília, Distrito Federal, Brazil
| | - Flávia D. Xavier
- Programa de Pós-graduação em Ciências Médicas da Faculdade de Medicina da Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
| | - Francielle P. Martins
- Programa de Pós-graduação em Ciências Médicas da Faculdade de Medicina da Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
- Núcleo de Gestão Interna de Leitos, Hospital Regional da Asa Norte (HRAN), Brasília, Distrito Federal, Brazil
| | - Gabriela P. J. Santos
- Programa de Pós-graduação em Ciências Médicas da Faculdade de Medicina da Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
- Unidade de Medicina Interna, Hospital Regional de Taguatinga, Brasília, Distrito Federal, Brazil
| | - Heidi Luise Schulte
- Programa de Pós-graduação em Ciências Médicas da Faculdade de Medicina da Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
| | - Isabelle S. Luz
- Laboratório de Bioquímica e Química de Proteínas, Departamento de Biologia Celular, Instituto de Ciências Biológicas, Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
| | - Laila S. Espindola
- Programa de Pós-graduação em Ciências Médicas da Faculdade de Medicina da Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
- Laboratório de Farmacognosia, Faculdade de Ciências da Saúde, Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
| | - Laurence R. do Amaral
- Laboratório de Bioinformática e Análises Moleculares, Rede Multidisciplinar de Pesquisa, Ciência e Tecnologia (RMPCT), Universidade Federal de Uberlândia, Patos de Minas, Minas Gerais, Brazil
| | - Liza F. Felicori
- Laboratório de Biologia Sintética e Biomiméticos, Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Luciana A. Naves
- Programa de Pós-graduação em Ciências Médicas da Faculdade de Medicina da Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
- Serviço de Endocrinologia, Hospital Universitário de Brasília, Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
| | - Maíra R. M. de Carvalho
- Programa de Pós-graduação em Ciências Médicas da Faculdade de Medicina da Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
- Unidade de Medicina Interna, Hospital Regional da Asa Norte (HRAN), Brasília, Distrito Federal, Brazil
| | - Matheus de S. Gomes
- Laboratório de Bioinformática e Análises Moleculares, Rede Multidisciplinar de Pesquisa, Ciência e Tecnologia (RMPCT), Universidade Federal de Uberlândia, Patos de Minas, Minas Gerais, Brazil
| | - Otávio T. Nóbrega
- Programa de Pós-graduação em Ciências Médicas da Faculdade de Medicina da Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
| | - Patrícia Albuquerque
- Faculdade UnB Ceilândia, Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
| | - Wagner Fontes
- Laboratório de Bioquímica e Química de Proteínas, Departamento de Biologia Celular, Instituto de Ciências Biológicas, Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
| | - Ciro M. Gomes
- Programa de Pós-graduação em Ciências Médicas da Faculdade de Medicina da Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
- Serviço de Dermatologia, Hospital Universitário de Brasília, Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
| | - Patricia S. Kurizky
- Programa de Pós-graduação em Ciências Médicas da Faculdade de Medicina da Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
- Serviço de Dermatologia, Hospital Universitário de Brasília, Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
- * E-mail: (RBA); (PSK)
| | - Cleandro P. Albuquerque
- Programa de Pós-graduação em Ciências Médicas da Faculdade de Medicina da Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
- Serviço de Reumatologia, Hospital Universitário de Brasília, Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
| | - Olindo A. Martins-Filho
- Grupo Integrado de Pesquisa em Biomarcadores, Fundação Oswaldo Cruz (FIOCRUZ), Belo Horizonte, Minas Gerais, Brazil
| | - Licia Maria H. da Mota
- Programa de Pós-graduação em Ciências Médicas da Faculdade de Medicina da Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
- Serviço de Reumatologia, Hospital Universitário de Brasília, Universidade de Brasília (UnB), Brasília, Distrito Federal, Brazil
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Demarque DP, Espindola LS. Challenges, Advances and Opportunities in Exploring Natural Products to Control Arboviral Disease Vectors. Front Chem 2021; 9:779049. [PMID: 34869227 PMCID: PMC8634490 DOI: 10.3389/fchem.2021.779049] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 09/17/2021] [Accepted: 10/22/2021] [Indexed: 02/02/2023] Open
Abstract
Natural products constitute an important source of molecules for product development. However, despite numerous reports of compounds and active extracts from biodiversity, poor and developing countries continue to suffer with endemic diseases caused by arboviral vectors, including dengue, Zika, chikungunya and urban yellow fever. Vector control remains the most efficient disease prevention strategy. Wide and prolonged use of insecticides has resulted in vector resistance, making the search for new chemical prototypes imperative. Considering the potential of natural products chemistry for developing natural products-based products, including insecticides, this contribution discusses the general aspects and specific characteristics involved in the development of drug leads for vector control. Throughout this work, we highlight the obstacles that need to be overcome in order for natural products compounds to be considered promising prototypes. Moreover, we analyze the bottlenecks that should be addressed, together with potential strategies, to rationalize and improve the efficiency of the drug discovery process.
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Affiliation(s)
- Daniel P Demarque
- Laboratory of Pharmacognosy, Department of Pharmacy, Faculty of Health Sciences, University of Brasilia, Brasilia, Brazil.,Laboratory of Pharmacognosy, Department of Pharmacy, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Laila S Espindola
- Laboratory of Pharmacognosy, Department of Pharmacy, Faculty of Health Sciences, University of Brasilia, Brasilia, Brazil
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Melo SJ, Sousa JPB, Sá MG, Morais LS, Magalhães NM, Gouveia FN, Albernaz LC, Espindola LS. Machaerium acutifolium compounds with larvicidal activity against Aedes aegypti. Pest Manag Sci 2021; 77:1444-1451. [PMID: 33128432 DOI: 10.1002/ps.6163] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 10/11/2020] [Accepted: 10/31/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Plant extracts and isolated compounds are known for their insecticidal activity. The Aedes aegypti mosquito has a significant medical impact as it transmits a number of arboviruses and is able to develop resistance to the commercially available insecticides. This study investigates larvicidal compounds isolated from Machaerium acutifolium, designated by the Brazilian Forest Service as a sustainable species. RESULTS A M. acutifolium trunk ethyl acetate extract was fractionated using chromatographic methods with full structural elucidation by mass spectrometry (MS), nuclear magnetic resonance and specific rotation analyses revealing: one new 3-arylcoumarin derivative 1; two flavonoids 2 and 3; a trans-stilbene 4, and an unprecedented natural indene 5. The larvicidal activity against Ae. aegypti after 24 h exposure was: crude extract (median lethal dose, LC50 205 mg L-1 ), fraction C (LC50 27 mg L-1 ) and 5 (LC50 24 mg L-1 ). CONCLUSION A M. acutifolium extract showed larvicidal activity, which increased with prolonged exposure, demonstrating LC50 75 mg L-1 after 72 h. Although the flavonoids 2 and 3 and trans-stilbene 4 were deemed inactive according to the adopted mortality limit, additional tests revealed their ability to cause 65% Ae. aegypti larvae mortality, suggesting they could contribute to the larvicidal activity. Compound 5, identified by liquid chromatography-MS, was over eight-fold more toxic to larvae than the crude extract after 24 h. Therefore, 5 constitutes a structural model for new prototypes to control Ae. aegypti. These data reinforce the potential of natural products as a source of commercial alternatives for vector control strategies, respecting both sustainability and eco-friendly principles. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Sebastião J Melo
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, Brazil
| | - João Paulo B Sousa
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, Brazil
| | - Maíra G Sá
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, Brazil
| | - Laís S Morais
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, Brazil
| | - Natália Mg Magalhães
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, Brazil
| | - Fernando N Gouveia
- Laboratório de Produtos Florestais, Serviço Florestal Brasileiro, Brasília, Brazil
| | - Lorena C Albernaz
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, Brazil
| | - Laila S Espindola
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, Brazil
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Silva MV, Silva SA, Teixera TL, De Oliveira A, Morais SA, Da Silva CV, Espindola LS, Sousa RM. Essential oil from leaves of Eugenia calycina Cambes: Natural larvicidal against Aedes aegypti. J Sci Food Agric 2021; 101:1202-1208. [PMID: 32789937 DOI: 10.1002/jsfa.10732] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 07/08/2020] [Accepted: 08/13/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Eugenia calycina is an endemic species in the Brazilian savannah (the Cerrado) and it is threatened with extinction. Several species of Eugenia are used as insecticides or insect repellents. No data are available on the larvicidal activity of E. calycina. The chemical composition of the essential oil (EO) from leaves of Eugenia calycina was analyzed by gas chromatography coupled to mass spectrometry (GC-MS) and the larvicidal activity against Aedes aegypti larvae in the third stage of development was studied. RESULTS Oxygenated and non-oxygenated sesquiterpenes were identified, and the main compounds were bicyclogermacrene, spathulenol, and β-caryophyllene. The EO was fractionated in a chromatographic column and three compounds were isolated and identified: spathulenol, aromadendrane-4β,10α-diol, and 1β-11-dihydroxy-5-eudesmene. It is the first time that the last two compounds have been identified in E. calycina. The exposure times in the larvicidal test were 24 h and 48 h and the LC50 values obtained were 199.3 and 166.4 μg mL-1 . The cytotoxicity of the EO in mammalian cells (HeLa and Vero) was evaluated for 24 and 48 h of incubation. The cytotoxic concentrations of the EO for HeLa and Vero cells (266.8 ± 46.5 and 312.1 ± 42.5 μg mL-1 , respectively) in 48 h of exposure were higher than the LC50 , showing low cytotoxicity at the concentration exhibiting larvicidal activity, resulting in a positive selectivity index. CONCLUSION These results indicate that the EO of E. calycina showed high activity against the A. aegypti larvae but lower cytotoxicity to mammalian cells. The leaves of E. calycina are therefore a very promising source of natural larvicidal products. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Marcus Vsg Silva
- Núcleo de Pesquisa em Produtos Naturais, Instituto de Química, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Sheila A Silva
- Núcleo de Pesquisa em Produtos Naturais, Instituto de Química, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Thaise Lara Teixera
- Laboratório de Biologia Molecular, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Alberto De Oliveira
- Núcleo de Pesquisa em Produtos Naturais, Instituto de Química, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Sérgio Al Morais
- Núcleo de Pesquisa em Produtos Naturais, Instituto de Química, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Claudio Vieira Da Silva
- Laboratório de Biologia Molecular, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Laila S Espindola
- Laboratório de Farmacognosia, Universidade de Brasília, Brasília, Brazil
| | - Raquel Mf Sousa
- Núcleo de Pesquisa em Produtos Naturais, Instituto de Química, Universidade Federal de Uberlândia, Uberlândia, Brazil
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Morais LS, Dusi RG, Demarque DP, Silva RL, Albernaz LC, Báo SN, Merten C, Antinarelli LMR, Coimbra ES, Espindola LS. Antileishmanial compounds from Connarus suberosus: Metabolomics, isolation and mechanism of action. PLoS One 2020; 15:e0241855. [PMID: 33156835 PMCID: PMC7647111 DOI: 10.1371/journal.pone.0241855] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 10/21/2020] [Indexed: 11/27/2022] Open
Abstract
Leishmaniasis is a disease impacting public health worldwide due to its high incidence, morbidity and mortality. Available treatments are costly, lengthy and toxic, not to mention the problem of parasite resistance. The development of alternative treatments is warranted and natural products demonstrate promising activity. This study investigated the activity of Connarus suberosus extracts and compounds against Leishmania species. Several C. suberosus extracts were tested against L. amazonensis promastigotes. Active and inactive extracts were analyzed by UHPLC-MS and data evaluated using a metabolomics platform, revealing an unknown neoflavonoid (connarin, 3), isolated together with the pterocarpans: hemileiocarpin (1) and leiocarpin (2). The aforementioned compounds (1-3), together with the benzoquinones: rapanone (4), embelin (5) and suberonone (6) previously isolated by our group from the same species, were tested against: (i) L. amazonensis and L. infantum promastigotes, and (ii) L. amazonensis intracellular amastigotes, with the most active compound (3) also tested against L. infantum amastigotes. Cytotoxicity against murine peritoneal macrophages was also investigated. Compounds 2 and 3 presented an IC50 33.8 μM and 11.4 μM for L. amazonensis promastigotes; and 44.3 μM and 13.3 μM for L. infantum promastigotes, respectively. For L. amazonensis amastigotes, the IC50 of 2 was 20.4 μM with a selectivity index (SI) of 5.7, while the IC50 of 3 was 2.9 μM with an SI of 6.3. For L. infantum amastigotes, the IC50 of 3 was 7.7 μM. Compounds 2 and 3 presented activity comparable with the miltefosine positive control, with compound 3 found to be 2-4 times more active than the positive control, depending on the Leishmania species and form. The extracts and isolated compounds showed moderate toxicity against macrophages. Compounds 2 and 3 altered the mitochondrial membrane potential (ΔΨm) and neutral lipid body accumulation, while 2 also impacted plasma membrane permeabilization, culminating in cellular disorder and parasite death. Transmission electron microscopy of L. amazonensis promastigotes treated with compound 3 confirmed the presence of lipid bodies. Leiocarpin (2) and connarin (3) demonstrated antileishmanial activity. This study provides knowledge of natural products with antileishmanial activity, paving the way for prototype development to fight this neglected tropical disease.
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Affiliation(s)
- Lais S. Morais
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Asa Norte, Brasília, DF, Brazil
| | - Renata G. Dusi
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Asa Norte, Brasília, DF, Brazil
| | - Daniel P. Demarque
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Asa Norte, Brasília, DF, Brazil
- Fakultät für Chemie und Biochemie, Organische Chemie II, Ruhr-Universität Bochum, Bochum, Germany
| | - Raquel L. Silva
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Asa Norte, Brasília, DF, Brazil
| | - Lorena C. Albernaz
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Asa Norte, Brasília, DF, Brazil
| | - Sônia N. Báo
- Laboratório de Microscopia e Microanálise, Instituto de Ciências Biológicas, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Asa Norte, Brasília, DF, Brazil
| | - Christian Merten
- Fakultät für Chemie und Biochemie, Organische Chemie II, Ruhr-Universität Bochum, Bochum, Germany
| | - Luciana M. R. Antinarelli
- Departamento de Parasitologia, Microbiologia e Imunologia, I.C.B., Universidade Federal de Juiz de Fora, Campus Universitário Juiz de Fora, Minas Gerais, Brazil
| | - Elaine S. Coimbra
- Departamento de Parasitologia, Microbiologia e Imunologia, I.C.B., Universidade Federal de Juiz de Fora, Campus Universitário Juiz de Fora, Minas Gerais, Brazil
| | - Laila S. Espindola
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Asa Norte, Brasília, DF, Brazil
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10
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Silva RL, Demarque DP, Dusi RG, Sousa JPB, Albernaz LC, Espindola LS. Residual Larvicidal Activity of Quinones against Aedes aegypti. Molecules 2020; 25:E3978. [PMID: 32878348 PMCID: PMC7504811 DOI: 10.3390/molecules25173978] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/21/2020] [Accepted: 08/29/2020] [Indexed: 12/13/2022] Open
Abstract
The number of documented dengue cases has increased dramatically in recent years due to transmission through the Aedes aegypti mosquito bite. Vector control remains the most effective measure to protect against this and other arboviral diseases including Zika, chikungunya and (urban) yellow fever, with an established vaccine only available for yellow fever. Although the quinone class shows potential as leading compounds for larvicide development, limited information restricts the development of optimized structures and/or formulations. Thus, in this contribution we investigated the larvicidal and pupicidal activity of three quinone compounds isolated from a Connarus suberosus root wood ethyl acetate extract together with 28 quinones from other sources. Eight quinones demonstrated larvicidal activity, of which tectoquinone (4) proved to be the most active (LC50 1.1 µg/mL). The essential residual effect parameter of four of these quinones was evaluated in laboratory trials, with tectoquinone (4) and 2-ethylanthraquinone (7) presenting the most prolonged activity. In small-scale field residual tests, tectoquinone (4) caused 100% larvae mortality over 5 days, supporting its selection for formulation trials to develop a prototype larvicide to control Ae. aegypti.
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Affiliation(s)
| | | | | | | | | | - Laila S. Espindola
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília 70910-900, Brazil; (R.L.S.); (D.P.D.); (R.G.D.); (J.P.B.S.); (L.C.A.)
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11
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Demarque DP, Dusi RG, de Sousa FDM, Grossi SM, Silvério MRS, Lopes NP, Espindola LS. Mass spectrometry-based metabolomics approach in the isolation of bioactive natural products. Sci Rep 2020; 10:1051. [PMID: 31974423 PMCID: PMC6978511 DOI: 10.1038/s41598-020-58046-y] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 01/09/2020] [Indexed: 01/02/2023] Open
Abstract
Metabolomics is a powerful tool in the analysis and identification of metabolites responsible for biological properties. Regarding natural product chemistry, it constitutes a potential strategy to streamline the classic and laborious process of isolating natural products, which often involves the re-isolation and identification of known compounds. In this contribution, we establish a mass spectrometry-based metabolomics strategy to discover compounds with larvicidal activity against Aedes aegypti. We analyse the Brazilian plant Annona crassiflora using different platforms to annotate the active compounds in different extracts/fractions of various plant parts. The MetaboAnalyst and GNPS platforms, which consider LC-MS and LC-MS/MS data, respectively, were chosen to identify compounds that differentiate active and inactive samples. Bio-guided isolation was subsequently performed to confirm compound activity. Results proved the capacity of metabolomics to predict metabolite differences between active and inactive samples using LC-MS and LC-MS/MS data. Moreover, we discuss the limitations, possibilities, and strategies to have a broad view of vast data.
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Affiliation(s)
- Daniel P Demarque
- Laboratório de Farmacognosia, Universidade de Brasília, Brasília, Brazil
| | - Renata G Dusi
- Laboratório de Farmacognosia, Universidade de Brasília, Brasília, Brazil
| | | | - Sophia M Grossi
- Laboratório de Farmacognosia, Universidade de Brasília, Brasília, Brazil
| | - Maira R S Silvério
- Núcleo de Pesquisa em Produtos Naturais e Sintéticos, Departamento de Física e Química, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Norberto P Lopes
- Núcleo de Pesquisa em Produtos Naturais e Sintéticos, Departamento de Física e Química, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Laila S Espindola
- Laboratório de Farmacognosia, Universidade de Brasília, Brasília, Brazil.
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12
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Espindola LS, Dusi RG, Demarque DP, Braz-Filho R, Yan P, Bokesch HR, Gustafson KR, Beutler JA. Cytotoxic Triterpenes from Salacia crassifolia and Metabolite Profiling of Celastraceae Species. Molecules 2018; 23:molecules23061494. [PMID: 29925807 PMCID: PMC6099938 DOI: 10.3390/molecules23061494] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 06/15/2018] [Accepted: 06/18/2018] [Indexed: 01/12/2023] Open
Abstract
The new pentacyclic triterpene 11β-hydroxypristimerin (1), along with the known metabolites pristimerin (2), 6-oxopristimerol (3) and vitideasin (4), were isolated from a Salacia crassifolia root wood extract, following a bioassay-guided fractionation approach. Both the extract and the purified triterpenes displayed pronounced cytotoxic activity against human cancer cell lines. The NCI-60 cell line screen revealed that compound 2 was the most active, with a mean GI50 of 0.17 μM, while compound 1 had a mean GI50 of 8.7 μM. A COMPARE analysis of the screening results showed that pristimerin is likely to be the main compound responsible for the cytotoxic activity of the extract (mean GI50 of 0.3 μg·mL−1). A targeted search for pristimerin and related derivatives using LC-MS/MS revealed the presence of pristimerin (2) and 6-oxopristimerol (3) in all Celastraceae species examined and in all plant parts tested, while vitideasin (4) was only detected in the genus Salacia.
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Affiliation(s)
- Laila S Espindola
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília 70910-900, Brazil.
- Molecular Targets Program, National Cancer Institute, Frederick, MD 21702, USA.
| | - Renata G Dusi
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília 70910-900, Brazil.
- Molecular Targets Program, National Cancer Institute, Frederick, MD 21702, USA.
| | - Daniel P Demarque
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília 70910-900, Brazil.
| | - Raimundo Braz-Filho
- FAPERJ/Departamento de Química, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ and Laboratório de Ciências Químicas, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes, Rio de Janeiro 28013-602, Brazil.
| | - Pengcheng Yan
- Molecular Targets Program, National Cancer Institute, Frederick, MD 21702, USA.
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China.
| | - Heidi R Bokesch
- Molecular Targets Program, National Cancer Institute, Frederick, MD 21702, USA.
- Basic Science Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research Sponsored by the National Cancer Institute, Frederick, MD 21702, USA.
| | - Kirk R Gustafson
- Molecular Targets Program, National Cancer Institute, Frederick, MD 21702, USA.
| | - John A Beutler
- Molecular Targets Program, National Cancer Institute, Frederick, MD 21702, USA.
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13
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Abstract
Numerous natural products having a 2,2-dimethylchromene (2,2-dimethylbenzopyrane) structural element present interesting biological activities that may, therefore, be considered as privileged pharmacophore. Nine aliphatic and aromatic amides were synthesized from the 5-amino-7-methoxy-2,2-dimethyl-2 H-chromene synthon. The antibacterial, antifungal, antileishmanial and cytotoxic activities of all amidochromenes were evaluated. No antibacterial or antifungal activity was observed. Nevertheless, three aromatic amides compounds shown significant antileishmanial activity with an excellent selectivity index.
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Affiliation(s)
- Abdelhak Neghra
- Université Paris Descartes, Sorbonne Paris Cité, Faculté de Pharmacie de Paris, U.M.R./C.N.R.S. n°8638, Laboratoire de Pharmacognosie, 4, Avenue de l'Observatoire, F-75006 Paris, France
| | - Marylin Lecsö
- Université Paris Descartes, Sorbonne Paris Cité, Faculté de Pharmacie de Paris, Laboratoire de Microbiologie, EA 4065, 4, Avenue de l'Observatoire, F-75006 Paris, France
| | - Marie-José Butel
- Université Paris Descartes, Sorbonne Paris Cité, Faculté de Pharmacie de Paris, Laboratoire de Microbiologie, EA 4065, 4, Avenue de l'Observatoire, F-75006 Paris, France
| | - Laila S. Espindola
- Universidade de Brasília, Laboratório de Farmacognosia, Campus Universiário Darcy Ribeiro, Asa Norte, 70910–900 Brasilia, DF, Brazil
| | - Brigitte Deguin
- Université Paris Descartes, Sorbonne Paris Cité, Faculté de Pharmacie de Paris, U.M.R./C.N.R.S. n°8638, Laboratoire de Pharmacognosie, 4, Avenue de l'Observatoire, F-75006 Paris, France
| | - Elisabeth Seguin
- Normandie Univ, UNIROUEN, INSA Rouen, CNRS, COBRA UMR 6014, 76000 Rouen, France
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14
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De Mesquita ML, De Paula JE, Espindola LS, Soares LAL, Da Silva TMG, Camara CA, Da Silva TMG. Protoflavanones from the Wood Stem of Salvertia convallariodora. Nat Prod Commun 2017; 12:515-518. [PMID: 30520585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023] Open
Abstract
Phytochemical-analysis of the ethyl acetate extract of stem wood of Salvertia convallariodora A. St.-Hil. (Vochysiaceae), a Brazilian Cerrado species, led to the isolation and full characterization of three new non-aromatic B-ring flavanones (1-3) as well as the terpene mixture of sericic acid (4), 24-hydroxytormentic acid (5); 24-hydroxytormentic acid glucosyl ester (6), and sericoside (7), all identified for the first time from S. convallariodora. The structures of the new flavanones (1-3) were established from IR, LC-PDA-qTOF-MS, and NMR spectral data, including 2D NMR experiments.
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15
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de Mesquita ML, de Paula JE, Espindola LS, Soares LAL, da Silva TMG, Camara CA, Da Silva TMG. Protoflavanones from the Wood Stem of Salvertia convallariodora. Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701200413] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Phytochemical analysis of the ethyl acetate extract of stem wood of Salvertia convallariodora A. St.-Hil. (Vochysiaceae), a Brazilian Cerrado species, led to the isolation and full characterization of three new non-aromatic B-ring flavanones (1-3) as well as the terpene mixture of sericic acid (4), 24-hydroxytormentic acid (5), 24-hydroxytormentic acid glucosyl ester (6), and sericoside (7), all identified for the first time from S. convallariodora. The structures of the new flavanones (1-3) were established from IR, LC-PDA-qTOF-MS, and NMR spectral data, including 2D NMR experiments.
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Affiliation(s)
| | - José E. de Paula
- Laboratório de Anatomia Vegetal, Universidade de Brasília, Brasília, DF, Brazil, 70910-900
| | - Laila S. Espindola
- Laboratório de Farmacognosia, Universidade de Brasília, Brasília, DF, Brazil, 70910-900
| | - Luiz A. L. Soares
- Programa de Pós-Graduação em Inovação Terapêutica, Universidade Federal de Pernambuco, Recife, PE, Brazil, 50670-901
| | - Tania M. G. da Silva
- Laboratório de Anatomia Vegetal, Universidade de Brasília, Brasília, DF, Brazil, 70910-900
| | - Celso A. Camara
- Laboratório de Bioprospecção Fitoquímica, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil, 52171-900
| | - Telma M. G. Da Silva
- Laboratório de Bioprospecção Fitoquímica, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil, 52171-900
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de Mesquita ML, Leão WF, Ferreira MRA, de Paula JE, Espindola LS, Soares LAL. Reversed-phase-liquid chromatography method for separation and quantification of gallic acid from hydroalcoholic extracts of Qualea grandiflora and Qualea parviflora. Pharmacogn Mag 2015; 11:S316-21. [PMID: 26664021 PMCID: PMC4653343 DOI: 10.4103/0973-1296.166062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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] [Indexed: 12/12/2022] Open
Abstract
Background: Qualea parviflora and Qualea grandiflora (Vochysiaceae), commonly known in Brazil as “pau-terra” and “pau-terrinha,” respectively, have been widely used in the treatment of ulcer and gastritis. These therapeutic effects are attributed to various compounds present in the plants, including phenolic compounds such as gallic acid, due to their important antioxidant activity. Objective: The aim of the present study was to validate a high performance liquid chromatography with diode array detection (HPLC-DAD) method for the quantitative determination of gallic acid in the stem bark of Q. parviflora and Q. grandiflora hydroalcoholic extracts. Materials and Methods: The chromatography analysis was successfully achieved on a Dionex column, Acclaim® 120 (250 mm × 4.60 mm, 5 µm) with a gradient elution of water and methanol at a flow rate of 0.8 mL/min and ultraviolet detection at 280 nm. Results: The validation data, including linearity, precision, specificity, accuracy and robustness of this method demonstrated good reliability and sensitivity. Conclusion: The method is able to quantify gallic acid in the stem bark of both species. What is more, the chromatographic peaks showed good resolution and there are also the advantages of easy sample preparation and a short time between each injection.
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Affiliation(s)
- Mariana L de Mesquita
- Laboratory of Pharmacognosy, University of Brasília - UnB, Brasília-DF, Brazil ; Post Graduate Programme in Therapeutic Innovation, Federal University of Pernambuco - UFPE, Recife-PE, Brazil ; Pharmacognosy Laboratory, Federal University of Pernambuco - UFPE, Recife-PE, Brazil
| | - Waleska F Leão
- Post Graduate Programme in Therapeutic Innovation, Federal University of Pernambuco - UFPE, Recife-PE, Brazil ; Pharmacognosy Laboratory, Federal University of Pernambuco - UFPE, Recife-PE, Brazil
| | - Magda R A Ferreira
- Post Graduate Programme in Therapeutic Innovation, Federal University of Pernambuco - UFPE, Recife-PE, Brazil
| | - José E de Paula
- Plant Anatomy Laboratory, University of Brasília - UnB; Brasília-DF, Brazil
| | - Laila S Espindola
- Laboratory of Pharmacognosy, University of Brasília - UnB, Brasília-DF, Brazil
| | - Luiz A L Soares
- Post Graduate Programme in Therapeutic Innovation, Federal University of Pernambuco - UFPE, Recife-PE, Brazil ; Pharmacognosy Laboratory, Federal University of Pernambuco - UFPE, Recife-PE, Brazil
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17
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Mandavid H, Rodrigues AMS, Espindola LS, Eparvier V, Stien D. Secondary Metabolites Isolated from the Amazonian Endophytic Fungus Diaporthe sp. SNB-GSS10. J Nat Prod 2015; 78:1735-1739. [PMID: 26149922 DOI: 10.1021/np501029s] [Citation(s) in RCA: 24] [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] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We describe a Sabicea cinerea endophytic fungus closely related to Diaporthe pseudomangiferae that produces two known metabolites, mycoepoxydiene (1) and altiloxin A (2), as well as enamidin (3) and eremofortin F (4), two compounds not previously described in the literature. The structure of these four metabolites was elucidated using spectroscopic analysis, and their cytotoxic activities were measured against the human cell lines KB, MRC-5, and MDA-MB-435.
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Affiliation(s)
- Hugues Mandavid
- †CNRS-Institut de Chimie des Substances Naturelles, Gif-sur-Yvette, France
| | | | - Laila S Espindola
- ‡Laboratório de Farmacognosia, Universidade de Brasília, Brasília, DF, Brazil
| | - Véronique Eparvier
- †CNRS-Institut de Chimie des Substances Naturelles, Gif-sur-Yvette, France
| | - Didier Stien
- †CNRS-Institut de Chimie des Substances Naturelles, Gif-sur-Yvette, France
- §UPMC Univ Paris 06, CNRS, Laboratoire de Biodiversité et Biotechnologies Microbiennes (LBBM), Sorbonne Universités, Observatoire Océanologique, 66650 Banyuls-sur-Mer, France
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18
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Basset C, Eparvier V, Espindola LS. The Search for Antifungals from Amazonian Trees: A Bio-Inspired Screening. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501000417] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The anti-fungal activity of 60 extracts from 15 tree species in the French Guiana rainforest against human and wood-rotting fungi was studied. In this way (+)-mopanol (1) was isolated from the ethyl acetate extract of Peltogyne sp. (Caesalpiniaceae) wood. This work demonstrated that (1) the natural durability of wood can indeed guide the search for antifungal agents, (2) that extracts selected in this bio-inspired process exhibit a broad spectrum of antifungal activity and (3) that the method allows for the isolation of strongly active antifungals.
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Affiliation(s)
- Charlie Basset
- CNRS, UMR ECOFOG, Université des Antilles et de la Guyane, 97300 Cayenne, French Guiana, France
- Laboratório de Farmacognosia, Universidade de Brasília, Brasília, Brazil
| | - Véronique Eparvier
- CNRS – Institut de Chimie des Substances Naturelles, 1 avenue de la Terrasse, 91198 Gif-sur-Yvette cedex, France
| | - Laila S. Espindola
- Laboratório de Farmacognosia, Universidade de Brasília, Brasília, Brazil
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Mai LH, Chabot GG, Grellier P, Quentin L, Dumontet V, Poulain C, Espindola LS, Michel S, Vo HTB, Deguin B, Grougnet R. Antivascular and anti-parasite activities of natural and hemisynthetic flavonoids from New Caledonian Gardenia species (Rubiaceae). Eur J Med Chem 2015; 93:93-100. [PMID: 25659770 DOI: 10.1016/j.ejmech.2015.01.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 01/06/2015] [Accepted: 01/07/2015] [Indexed: 10/25/2022]
Abstract
A series of 16 flavonoids were isolated and prepared from bud exudate of Gardenia urvillei and Gardenia oudiepe, endemic to New Caledonia. Most of them are rare polymethoxylated flavones. Some of these compounds showed noticeable activity against Leishmania (Leishmania) amazonensis, Plasmodium falciparum and Trypanosoma brucei gambiense, in addition to tubulin polymerization inhibition at low micromolar concentration. We also provide a full set of NMR data as some of the flavones were incompletely described.
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Affiliation(s)
- Linh H Mai
- Laboratoire de Pharmacognosie, UMR/CNRS 8638, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, 4, Avenue de l'Observatoire, 75006 Paris, France
| | - Guy G Chabot
- Laboratoire de Pharmacologie Chimique, Génétique et Imagerie U1022 Inserm-UMR8151 CNRS, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, 4, Avenue de l'Observatoire, 75006 Paris, France
| | - Philippe Grellier
- Muséum National d'Histoire Naturelle, UMR 7245 CNRS, Molécules de Communication et Adaptation des Micro-organismes, 61 rue Buffon, F-75231 Paris Cedex 05, France
| | - Lionel Quentin
- Laboratoire de Pharmacologie Chimique, Génétique et Imagerie U1022 Inserm-UMR8151 CNRS, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, 4, Avenue de l'Observatoire, 75006 Paris, France
| | - Vincent Dumontet
- Centre de recherche de Gif, Institut de Chimie des Substances Naturelles, UPR2301 CNRS, Avenue de la Terrasse, Gif-sur-Yvette Cedex, France
| | - Cyril Poulain
- Centre de recherche de Gif, Institut de Chimie des Substances Naturelles, UPR2301 CNRS, Avenue de la Terrasse, Gif-sur-Yvette Cedex, France
| | - Laila S Espindola
- Laboratorio de Farmacognosia, Universidade de Brasilia, Campus Universitario Darcy Ribeiro, Asa Norte, 70910-900 Brasilia, DF, Brazil
| | - Sylvie Michel
- Laboratoire de Pharmacognosie, UMR/CNRS 8638, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, 4, Avenue de l'Observatoire, 75006 Paris, France
| | - Hue T B Vo
- Faculty of Pharmacy, Ho Chi Minh University of Medicine and Pharmacy, 41 Dinh Tien Hoang St., District 1, Ho Chi Minh City, Viet Nam
| | - Brigitte Deguin
- Laboratoire de Pharmacognosie, UMR/CNRS 8638, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, 4, Avenue de l'Observatoire, 75006 Paris, France
| | - Raphaël Grougnet
- Laboratoire de Pharmacognosie, UMR/CNRS 8638, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, 4, Avenue de l'Observatoire, 75006 Paris, France.
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Casella TM, Eparvier V, Mandavid H, Bendelac A, Odonne G, Dayan L, Duplais C, Espindola LS, Stien D. Antimicrobial and cytotoxic secondary metabolites from tropical leaf endophytes: Isolation of antibacterial agent pyrrocidine C from Lewia infectoria SNB-GTC2402. Phytochemistry 2013; 96:370-7. [PMID: 24189345 DOI: 10.1016/j.phytochem.2013.10.004] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 10/06/2013] [Accepted: 10/09/2013] [Indexed: 05/02/2023]
Abstract
Because of the symbiotic nature of endophytes, this survey aims to investigate the probability of discovering antibacterial, antifungal and cytotoxic activities in leaf endophytic microbes. We isolated 138 cultivable microbes (121 fungi, 3 bacteria and 14 unidentified or unknown microbes) from 24 plant species, a significant relative proportion of which exhibited antifungal and cytotoxic potential against Candida albicans ATCC 10213 and the human cell lines KB (uterine cervical carcinoma), MDA-MB-435 (melanoma), and MRC5 (normal human lung fibroblasts). Three active fungal extracts were fractionated, resulting in the isolation of eight compounds. Seven had been described in the literature including the following: acremonisol A, semicochliodinol A, cochliodinol, griseofulvin, pyrenocin A, novae zelandin A and alterperylenol. A previously unreported compound named pyrrocidine C was isolated from Lewia infectoria SNB-GTC2402 and identified by spectroscopic analysis. As in pyrrocidines A and B, this compound is a cis-substituted decahydrofluorene with a quaternary carbon at C-5 and opposite stereochemistry at C-8 corresponding to C-6 of pyrrocidines A and B.
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Affiliation(s)
- Thiago M Casella
- CNRS - Institut de Chimie des Substances Naturelles, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette cedex, France; CNRS, UMR ECOFOG, Institut Pasteur de la Guyane, 23 Avenue Pasteur, 97300 Cayenne, France; Laboratório de Farmacognosia, Universidade de Brasília, Brasília, DF, Brazil
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Silva EM, Araújo RM, Freire-Filha LG, Silveira ER, Lopes NP, Paula JED, Braz-Filho R, Espindola LS. Clusiaxanthone and Tocotrienol Series from Clusia pernambucensisand their Antileishmanial Activity. J BRAZIL CHEM SOC 2013. [DOI: 10.5935/0103-5053.20130166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Basset C, Rodrigues AMS, Eparvier V, Silva MRR, Lopes NP, Sabatier D, Fonty E, Espindola LS, Stien D. Secondary metabolites from Spirotropis longifolia (DC) Baill and their antifungal activity against human pathogenic fungi. Phytochemistry 2012; 74:166-172. [PMID: 22137037 DOI: 10.1016/j.phytochem.2011.10.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2011] [Revised: 10/20/2011] [Accepted: 10/26/2011] [Indexed: 05/31/2023]
Abstract
A phytochemical study of the ethyl acetate extract of the roots and adventitious roots of Spirotropis longifolia, a monodominant tree species of the Guianan rainforest, has allowed the isolation of three compounds: 2-hydroxy-8,9-methylenedioxy-2',2'-dimethylpyrano-[5',6':4,3]-6a-prenyl-[6aS,11aS]-pterocarpan (spirotropin A), 2-hydroxy-8,9-methylenedioxy-2',2'-dimethyl-3',4'-dihydropyrano-[5',6':4,3]-6a-prenyl-[6aS,11aS]-pterocarpan (spirotropin B), and 5,7-dihydroxy-6,8-diprenyl-2'''',2''''-dimethylpyrano[5'''',6'''': 3',4']-isoflavone (spirotropone). In addition, 10 known compounds, trans-oxyresveratrol, trans-resveratrol, piceatannol, daidzein, genistein, isoprunetin, lupeol, latifolol, gnetin D and gnetin E, were also isolated. These compounds were evaluated for their antifungal activity and their cytotoxicity, and their structures were established by 1D and 2D NMR, HRMS, CD and optical rotation measurements.
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Affiliation(s)
- Charlie Basset
- CNRS, UMR ECOFOG, Université des Antilles et de la Guyane, 97300 Cayenne, France
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Rodrigues AMS, Amusant N, Beauchêne J, Eparvier V, Leménager N, Baudassé C, Espindola LS, Stien D. The termiticidal activity of Sextonia rubra (Mez) van der Werff (Lauraceae) extract and its active constituent rubrynolide. Pest Manag Sci 2011; 67:1420-1423. [PMID: 21520483 DOI: 10.1002/ps.2167] [Citation(s) in RCA: 9] [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] [Subscribe] [Scholar Register] [Received: 11/25/2010] [Revised: 02/12/2011] [Accepted: 02/16/2011] [Indexed: 05/30/2023]
Abstract
BACKGROUND Termites are degradation agents that inflict severe damage on wood. Some long-lasting Amazonian trees can resist these insects by producing toxic secondary metabolites. These metabolites could potentially replace synthetic termiticidal products which are becoming more restricted to use. RESULTS Sextonia rubra is resistant to termite-induced degradation. It has been demonstrated that this species naturally produces an ethyl-acetate-soluble termiticidal metabolite, rubrynolide, to protect its wood. Assays in the presence of tropical and invasive termites established that both rubrynolide and crude ethyl acetate extract from S. rubra wood can be used as a treatment for the protection of sensitive woods against termites. CONCLUSION Rubrynolide and S. rubra extract are promising candidates for the replacement of synthetic termiticides.
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de Mesquita ML, Grellier P, Mambu L, de Paula JE, Espindola LS. In vitro antiplasmodial activity of Brazilian Cerrado plants used as traditional remedies. J Ethnopharmacol 2007; 110:165-70. [PMID: 17097251 DOI: 10.1016/j.jep.2006.09.015] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2006] [Revised: 08/21/2006] [Accepted: 09/18/2006] [Indexed: 05/12/2023]
Abstract
Twenty-seven species of native Brazilian Cerrado plants commonly used by traditional healers to treat malaria and other diseases were collected and 204 hexanic and ethanolic extracts were obtained by maceration. The antiplasmodial activity of the extracts was tested in vitro against a chloroquine resistant strain (FcB1) of Plasmodium falciparum, and cytotoxicity against the cell lines L-6 of rats and MRC-5 of human was evaluated. Thirty-two extracts showed significant inhibition rates of Plasmodium falciparum growth and of these six showed cytotoxicity against the cell lines. The strongest antiplasmodial activity was found for the hexanic extracts of Xylopia aromatica root wood (IC(50)=4.7 microg/ml), Xylopia emarginata root bark (IC(50)=4.9 microg/ml), Casearia sylvestris var. lingua leaves, stem wood and stem bark, and root wood and root bark (IC(50) values from 0.9 to 2.3 microg/ml), and Cupania vernalis leaves (IC(50)=0.9 microg/ml); and for the ethanolic extract of Aspidosperma macrocarpon root bark (IC(50)=4.9 microg/ml). However, the best selectivity towards Plasmodium falciparum was observed for the hexanic root bark extract of Matayba guianensis (IC(50) on Plasmodium falciparum=6.1 microg/ml, SI=16.4 for MRC-5) and the ethanolic root bark extract of Aspidosperma macrocarpon (IC(50) on Plasmodium falciparum=4.9 micro/ml, SI=16.2 for MRC-5).
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Affiliation(s)
- M L de Mesquita
- Laboratório de Farmacognosia, Faculdade de Ciências da Saúde, Universidade de Brasília, Brasília, Brazil
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Abstract
One hundred ninety hexanic and ethanolic extract from 27 plant species from the Cerrado biome of Brazil were tested for larvicidal activity against 3rd-stage Aedes aegypti larvae at 500 microg/ml. Fourteen extracts from 7 species showed activity (>65% mortality) against the larvae. Of these Dugeutia furfuracea, Piptocarpha rotundifolia, Casearia sylvestris var. lingua, Serjania lethalis, and Xylopia aromatica were active at 56.6, 162.31, 232.4, 285.76, and 384.37 microg/ml, respectively. Annona crassiflora and Cybistax antisyphilitica showed activity at 23.06 and 27.61 microg/ml. The larvicidal properties of these species are described for the first time, and may prove to be promising in active chemical compound isolation.
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Affiliation(s)
- A M S Rodrigues
- Laboratorio de Farmacognosia, Faculdade de Ciencias da Saude, Universidade de Brasilia, Brasilia, Brasil
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Napolitano DR, Mineo JR, de Souza MA, de Paula JE, Espindola LS, Espindola FS. Down-modulation of nitric oxide production in murine macrophages treated with crude plant extracts from the Brazilian Cerrado. J Ethnopharmacol 2005; 99:37-41. [PMID: 15848017 DOI: 10.1016/j.jep.2005.01.059] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2004] [Revised: 01/24/2005] [Accepted: 01/24/2005] [Indexed: 05/24/2023]
Abstract
Several plant species from the Cerrado biome in Brazil are popularly used as herbal medicines for its reputed analgesic, anti-acid, anti-microbial, anti-inflammatory and anti-tumoral properties, among others. It has been reported that some plant extracts interfere in the production of nitric oxide (NO), an important inflammatory mediator. In the present study, we investigated the effect of hexanic and ethanolic extracts from three plant species on NO production by LPS/IFN-gamma-activated J774 macrophages based on traditional use. The cytotoxic effect of the crude extracts was determined by the thiazolyl blue test (MTT) to measure cell viability. Serjania lethalis stem extracts and Cupania vernalis leaf extracts significantly inhibited NO production, while extracts from Casearia sylvestris var. lingua were inactive or showed low activity on NO production, or were very cytotoxic. The ethanolic stem bark and leaf extracts of Serjania lethalis and Cupania vernalis, respectively, almost completely inhibited the production of NO by J774 macrophages. It can be concluded that the selected extracts are potential sources of active compounds that might be used as anti-inflammatory agents.
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Affiliation(s)
- D R Napolitano
- Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia, Brazil
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