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Carneiro Junior WDO, Guimarães MLR, Freitas KM, Pereira RS, Pádua RMD, Campana PRV, Braga FC. Structural characterization of a proanthocyanidin-rich fraction from Hancornia speciosa leaves and its effect on the release of pro-inflammatory cytokines and oxidative stress in THP-1 cells. JOURNAL OF ETHNOPHARMACOLOGY 2024; 333:118471. [PMID: 38901680 DOI: 10.1016/j.jep.2024.118471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 06/16/2024] [Accepted: 06/17/2024] [Indexed: 06/22/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE In Brazil, the leaves of Hancornia speciosa Gomes have a traditional use for treating hypertension and diabetes. Experimental investigations have confirmed the anti-hypertensive and hypoglycemic properties of extracts derived from H. speciosa leaves across various experimental models. These biological activities have been mostly ascribed to its major constituent, bornesitol, along with other cyclitols, flavonoids, and cinnamic acid derivatives. AIM OF STUDY The objective of this study was to characterize the chemical structure of proanthocyanidins from H. speciosa leaves and explore their in vitro activity on the release of pro-inflammatory cytokines and oxidative stress. MATERIAL AND METHODS The acetone/water (7:3) extract of H. speciosa leaves (HsE) was prepared by percolation and fractionated by column chromatography over Sephadex LH20 to afford the proanthocyanidin-rich fraction HsFr3. Structure characterization of the proanthocyanidins constituents of HsFr3 was accomplished by extensive UPLC-DAD-ESI-MS/MS analysis coupled to degradation reaction through thiolysis. The effect of HsE, HsFr3, and bornesitol on the release of TNF, IL-1β and IL-6 in LPS-stimulated THP-1 cells was assayed by ELISA. The effect of the samples on oxidative stress induced by LPS in THP-1 cell was investigated using a DCFH-DA fluorescent assay. RESULTS Fractionation of HsE afforded HsFr3, primarily composed of six proanthocyanidins. Their chemical structures were characterized as dimeric (4 isomers) and trimeric (2 isomers) procyanidins C-glycosides of the B-type. HsE, HsFr3, and bornesitol reduced the release of pro-inflammatory cytokines TNF and IL-1β in LPS-stimulated THP-1 cells, while no significant effect was observed on IL-6. All samples reduced the oxidative stress induced by LPS in THP-1 cells, whereas bornesitol, tested at lower concentrations, induced an equivalent response to HsE and HsFr3. CONCLUSIONS Our findings provide additional evidence to support the ethnomedical use of H. speciosa in managing hypertension and hyperglycemia, due to the direct association of oxidative stress, TNF, and IL-1β with the maintenance and aggravation of these deleterious conditions. The dimeric and trimeric procyanidin C-glycosides, characterized in the species, contribute to diminish oxidative stress and the release or pro-inflammatory cytokines, whereas bornesitol was shown to induce similar effect at lower concentrations.
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Affiliation(s)
- Wellerson de Oliveira Carneiro Junior
- Department of Pharmaceutical Products Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, 31270-901, Belo Horizonte, Brazil.
| | - Maria Luiza Rocha Guimarães
- Department of Pharmaceutical Products Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, 31270-901, Belo Horizonte, Brazil.
| | - Kátia Michelle Freitas
- Department of Pharmaceutical Products Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, 31270-901, Belo Horizonte, Brazil.
| | - Rosângela Santos Pereira
- Department of Pharmaceutical Products Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, 31270-901, Belo Horizonte, Brazil.
| | - Rodrigo Maia de Pádua
- Department of Pharmaceutical Products Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, 31270-901, Belo Horizonte, Brazil.
| | - Priscilla Rodrigues Valadares Campana
- Department of Pharmaceutical Products Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, 31270-901, Belo Horizonte, Brazil.
| | - Fernão Castro Braga
- Department of Pharmaceutical Products Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, 31270-901, Belo Horizonte, Brazil.
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Pereira ABD, Gomes JHDS, Pereira AC, Pádua RMD, Côrtes SF, Sena MM, Braga FC. Definition of chemical markers for Hancornia speciosa Gomes by chemometric analysis based on the chemical composition of extracts, their vasorelaxant effect and α-glucosidase inhibition. JOURNAL OF ETHNOPHARMACOLOGY 2022; 299:115692. [PMID: 36084818 DOI: 10.1016/j.jep.2022.115692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 08/19/2022] [Accepted: 08/31/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Hancornia speciosa Gomes (Apocynaceae) is a tree found in the Brazilian savannah, traditionally used to treat several diseases, including diabetes and hypertension. The anti-hypertensive activity of H. speciosa leaves (HSL) has been demonstrated in different models and is credited to the vasodilator effect and ACE (angiotensin-converting enzyme) inhibition. The hypoglycemic effect of HSL has been also reported. AIM OF THE STUDY To establish correlations between the biological activities elicited by H. speciosa extracts and the contents of their major compounds, aiming to define chemical markers related to the potential antihypertensive and antidiabetic effects of the species. Additionally, it aimed to isolate and characterize the chemical structure of a marker related to the α-glucosidase inhibitory effect. MATERIALS AND METHODS Extracts of a single batch of H. speciosa leaves were prepared by extraction with distinct solvents (ethanol/water in different proportions; methanol/ethyl acetate), employing percolation or static maceration as extraction techniques, at different time intervals. The contents of chlorogenic acid, rutin and FlavHS (a tri-O-glycoside of quercetin) were quantified by a developed and validated HPLC-PDA method. Bornesitol was determined by HPLC-PDA after derivatization with tosyl chloride, whereas total flavonoids were measured spectrophotometrically. Identification of other constituents in the extracts was performed by UPLC-DAD-ESI-MS/MS analysis. The vasorelaxant activity was assayed in rat aortic rings precontracted with phenylephrine, and α-glucosidase inhibition was tested in vitro. Principal component analysis (PCA) was employed to evaluate the contribution of each marker to the biological responses. Isolation of compound 1 was carried out by column chromatography and structure characterization was accomplished by NMR and UPLC-DAD-ESI-MS/MS analyses. RESULTS The contents of the chemical markers (mean ± s.d. % w/w) varied significantly among the extracts, including total flavonoids (2.68 ± 0.14 to 5.28 ± 0.29), bornesitol (5.11 ± 0.26 to 7.75 ± 0.78), rutin (1.46 ± 0.06 to 1.97 ± 0.02), FlavHS (0.72 ± 0.05 to 0.94 ± 0.14) and chlorogenic acid (0.67 ± 0.09 to 0.91 ± 0.02). All extracts elicited vasorelaxant effect (pIC50 between 4.97 ± 0.22 to 6.48 ± 0.10) and α-glucosidase inhibition (pIC50 between 3.49 ± 0.21 to 4.03 ± 0.10). PCA disclosed positive correlations between the vasorelaxant effect and the contents of chlorogenic acid, rutin, total flavonoids, and FlavHS, whereas a negative correlation was found with bornesitol concentration. No significant correlation between α-glucosidase inhibition and the contents of the above-mentioned compounds was found. On the other hand, PCA carried out with the areas of the ten major peaks from the chromatograms disclosed positive correlations between a peak ascribed to co-eluted triterpenes and α-glucosidase inhibition. A triterpene was isolated and identified as 3-O-β-(3'-R-hydroxy)-hexadecanoil-lupeol. CONCLUSION According to PCA results, the vasorelaxant activity of H. speciosa extracts is related to flavonoids and chlorogenic acid, whereas the α-glucosidase inhibition is associated with lipophilic compounds, including esters of lupeol like 3-O-β-(3'-R-hydroxy)-hexadecanoil-lupeol, described for the first time for the species. These compounds can be selected as chemical markers for the quality control of H. speciosa plant drug and derived extracts.
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Affiliation(s)
- Ana Bárbara D Pereira
- Departament of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, Brazil.
| | - José Hugo de Sousa Gomes
- Departament of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, Brazil.
| | - Aline Carvalho Pereira
- Departament of Pharmacology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, Brazil.
| | - Rodrigo Maia de Pádua
- Departament of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, Brazil.
| | - Steyner F Côrtes
- Departament of Pharmacology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, Brazil.
| | - Marcelo Martins Sena
- Departament of Chemistry, Institute of Exact Sciences, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, Brazil; Instituto Nacional de Ciência e Tecnologia em Bioanalítica (INCT-Bio), Campinas, SP, 13083-970, Brazil.
| | - Fernão Castro Braga
- Departament of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, Brazil.
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Reis VHDOT, Rodrigues BM, Loubet Filho PS, Cazarin CBB, Rafacho BPM, dos Santos EEF. Biotechnological potential of Hancornia speciosa whole tree: A narrative review from composition to health applicability. Heliyon 2022; 8:e11018. [PMID: 36276713 PMCID: PMC9578994 DOI: 10.1016/j.heliyon.2022.e11018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 01/19/2022] [Accepted: 10/05/2022] [Indexed: 11/06/2022] Open
Abstract
Mangabeira (Hancornia speciosa) is a Brazilian tree and a socioeconomic key due to the commercialization of its food products and tree parts to treat health conditions empirically. This review gathers the main chemical, and microbiological characteristics of the mangabeira tree parts (leaves, fruits, tree bark, latex, and seeds), emphasizing its applicability in food science and focusing on its bioapplicability in health conditions. Leaves, fruits, and tree bark can be used to develop functional foods, and phytochemical products; the tree latex have great potential in the bioengineering material field; and the seeds in sustainable energy production. Leaves and fruits were the main samples bioapplied in health conditions in vitro (oxidative stress and chemopreventive effect) and in vivo (gastrointestinal and cardiovascular health, anti-inflammatory, and antidiabetic effect), whereas tree bark and latex also exhibited health effects and seeds showed low cytotoxicity. All parts of the mangabeira tree can be explored by extractivist families and industries from a sustainable point of view.
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Affiliation(s)
- Vitória Helena de Oliveira Teixeira Reis
- Graduate Program of Biotechnology, Faculty of Pharmaceutical Sciences, Food, and Nutrition, Federal University of Mato Grosso do Sul, 79070-900, Campo Grande, Mato Grosso do Sul, Brazil,Corresponding author.
| | - Bruna Magusso Rodrigues
- Graduate Program of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences Food, and Nutrition, Federal University of Mato Grosso do Sul, 79070-900, Campo Grande, Mato Grosso do Sul, Brazil
| | - Paulo Sérgio Loubet Filho
- Graduate Program of Food and Nutrition, Faculty of Food Engineering, Universidade Estadual de Campinas, 13083-862 Campinas, São Paulo, Brazil
| | - Cinthia Baú Betim Cazarin
- Graduate Program of Food and Nutrition, Faculty of Food Engineering, Universidade Estadual de Campinas, 13083-862 Campinas, São Paulo, Brazil
| | - Bruna Paola Murino Rafacho
- Graduate Program of Biotechnology, Faculty of Pharmaceutical Sciences, Food, and Nutrition, Federal University of Mato Grosso do Sul, 79070-900, Campo Grande, Mato Grosso do Sul, Brazil,Graduate Program of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences Food, and Nutrition, Federal University of Mato Grosso do Sul, 79070-900, Campo Grande, Mato Grosso do Sul, Brazil
| | - e Elisvânia Freitas dos Santos
- Graduate Program of Biotechnology, Faculty of Pharmaceutical Sciences, Food, and Nutrition, Federal University of Mato Grosso do Sul, 79070-900, Campo Grande, Mato Grosso do Sul, Brazil,Graduate Program in Health and Development in the Midwest Region, Medical School, Federal University of Mato Grosso do Sul, 79070-900, Campo Grande, Mato Grosso do Sul, Brazil
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Siracusa L, Napoli E, Ruberto G. Novel Chemical and Biological Insights of Inositol Derivatives in Mediterranean Plants. Molecules 2022; 27:molecules27051525. [PMID: 35268625 PMCID: PMC8912080 DOI: 10.3390/molecules27051525] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 02/17/2022] [Accepted: 02/22/2022] [Indexed: 12/12/2022] Open
Abstract
Inositols (Ins) are natural compounds largely widespread in plants and animals. Bio-sinthetically they derive from sugars, possessing a molecular structure very similar to the simple sugars, and this aspect concurs to define them as primary metabolites, even though it is much more correct to place them at the boundary between primary and secondary metabolites. This dichotomy is well represented by the fact that as primary metabolites they are essential cellular components in the form of phospholipid derivatives, while as secondary metabolites they are involved in a plethora of signaling pathways playing an important role in the surviving of living organisms. myo-Inositol is the most important and widespread compound of this family, it derives directly from d-glucose, and all known inositols, including stereoisomers and derivatives, are the results of metabolic processes on this unique molecule. In this review, we report the new insights of these compounds and their derivatives concerning their occurrence in Nature with a particular emphasis on the plant of the Mediterranean area, as well as the new developments about their biological effectiveness.
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Nunes VV, Silva-Mann R, Souza JL, Calazans CC. Pharmaceutical, food potential, and molecular data of Hancornia speciosa Gomes: a systematic review. GENETIC RESOURCES AND CROP EVOLUTION 2022; 69:525-543. [PMID: 35068695 PMCID: PMC8764503 DOI: 10.1007/s10722-021-01319-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 12/08/2021] [Indexed: 06/14/2023]
Abstract
Hancornia speciosa Gomes is a fruit and medicinal tree species native to South America, which in Brazil is considered of potential economic value and priority for research and development. We present a map of the state-of-art, including articles, patents, and molecular data of the species to identify perspectives for future research. The annual scientific production, intellectual, social, and conceptual structure were evaluated, along with the number of patent deposits, components of the plant used, countries of deposit, international classification and assignees, and the accessibility of available molecular data. Brazil has the most significant publications (306) between 1992 and 2020. Technological products (29) have been developed from different tissues of the plant. Most of the articles and patents were developed by researchers from public universities from different regions of Brazil. The molecular data are sequences of nucleotides (164) and proteins (236) of the chloroplast genome and are described to identify the species as DNA barcodes and proteins involved in photosynthesis. The compilation and report of scientific, technological, and molecular information in the present review allowed the identification of new perspectives of research to be developed based on the gaps in knowledge regarding the species and perspectives for the definition of future research. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s10722-021-01319-w.
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Affiliation(s)
- Valdinete Vieira Nunes
- Post-Graduation Program in Agriculture and Biodiversity, Universidade Federal de Sergipe, São Cristóvão, Sergipe Brazil
| | - Renata Silva-Mann
- Department of Agronomic Engineering, Universidade Federal de Sergipe, São Cristóvão, Sergipe Brazil
| | - Juliana Lopes Souza
- Post-Graduation Program in Agriculture and Biodiversity, Universidade Federal de Sergipe, São Cristóvão, Sergipe Brazil
| | - Crislaine Costa Calazans
- Post-Graduation Program in Agriculture and Biodiversity, Universidade Federal de Sergipe, São Cristóvão, Sergipe Brazil
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Paving New Roads Towards Biodiversity-Based Drug Development in Brazil: Lessons from the Past and Future Perspectives. ACTA ACUST UNITED AC 2021; 31:505-518. [PMID: 34548709 PMCID: PMC8447804 DOI: 10.1007/s43450-021-00181-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 08/25/2021] [Indexed: 11/29/2022]
Abstract
Although Brazil gathers two fundamental features to occupy a leading position on the development of biodiversity-based medicines, the largest flora on earth and a broad tradition on the use of medicinal plants, the number of products derived from the national genetic heritage is so far modest, either as single drugs or as herbal medicines. This article highlights some aspects that may have contributed to the low rates of success and proposes new insights for innovation. We initially approach the use of medicinal plants in Brazil, molded by its ethnic diversity, and the development of the local pharmaceutical industry. A discussion of some governmental initiatives to support plant-based drug development is then presented. Employing the economic concept of “middle-income trap,” we further propose that Brazil is stuck in a “middle-level science trap,” since the increase in the number of scientific publications that launched the country to an intermediate publishing position has not been translated into drug development. Two new approaches to escape from this trap are presented, which may result in innovative drug development. The first is based on the exploitation of the antifragility properties of herbal products aiming to investigate non-canonical pharmacodynamics mechanisms of action, aligned with the concepts of system biology. The second is the manufacture of herbal products based on the circular economy principles, including the use of byproducts for the development of new therapeutical agents. The adoption of these strategies may result in innovative phytomedicines, with global competitiveness.
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Marinho TA, Oliveira MG, Menezes-Filho ACP, Castro CFS, Oliveira IMM, Borges LL, Melo-Reis PR, Silva-Jr NJ. Phytochemical characterization, and antioxidant and antibacterial activities of the hydroethanolic extract of Anadenanthera peregrina stem bark. BRAZ J BIOL 2021; 82:e234476. [PMID: 33681898 DOI: 10.1590/1519-6984.234476] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 07/03/2020] [Indexed: 02/05/2023] Open
Abstract
The Brazilian Cerrado biome consists of a great variety of endemic species with several bioactive compounds, and Anadenanthera peregrina (L.) Speg is a promising species. In this study, we aimed to perform phytochemical characterization and evaluate the antioxidant and antibacterial activities against Staphylococcus aureus and Escherichia coli of the hydroethanolic extract of A. peregrina stem bark. The barks were collected in the Botanical Garden of Goiânia, Brazil. The hydroethanolic extract was obtained by percolation and subjected to physicochemical screening, total phenolic content estimation, high-performance liquid chromatography (HPLC) fingerprinting, and antioxidant (IC50 values were calculated for the 2,2-diphenyl-1-picrylhydrazyl assay - DPPH) and antibacterial activity determination. The pH of the extract was 5.21 and density was 0.956 g/cm3. The phytochemical screening indicated the presence of cardiac glycosides, organic acids, reducing sugars, hemolytic saponins, phenols, coumarins, condensed tannins, flavonoids, catechins, depsides, and depsidones derived from benzoquinones. The extract showed intense hemolytic activity. The total phenolic content was 6.40 g GAE 100 g-1. The HPLC fingerprinting analysis revealed the presence of gallic acid, catechin, and epicatechin. We confirmed the antioxidant activity of the extract. Furthermore, the extract did not inhibit the growth of E. coli colonies at any volume tested, but there were halos around S. aureus colonies at all three volumes tested. These results contribute to a better understanding of the chemical composition of A. peregrina stem bark and further support the medicinal applications of this species.
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Affiliation(s)
- T A Marinho
- Universidade Federal de Goiás - UFG, Rede Pró Centro-Oeste, Programa de Pós-graduação em Biotenologia e Biodiversidade - PGBB, Goiânia, GO, Brasil.,Instituto Federal de Educação, Ciência e Tecnologia de Goiás - IFG, Núcleo de Estudos e Pesquisas em Promoção da Saúde - NUPPS, Goiânia, GO, Brasil
| | - M G Oliveira
- Universidade Federal de Goiás - UFG, Programa de Pós-graduação em Ciências Farmacêticas, Goiânia, GO, Brasil
| | - A C P Menezes-Filho
- Instituto Federal de Ciência e Tecnologia Goiano - IFGoiano, Programa de Pós-graduação em Agroquímica - PPGAq, Rio Verde, GO, Brasil
| | - C F S Castro
- Instituto Federal de Ciência e Tecnologia Goiano - IFGoiano, Programa de Pós-graduação em Agroquímica - PPGAq, Rio Verde, GO, Brasil
| | - I M M Oliveira
- Pontifícia Universidade Católica de Goiás - PUCGO, Programa de Pós-graduação em Genética, Goiânia, GO, Brasil
| | - L L Borges
- Universidade Estadual de Goiás - UEG, Programa de Pós-graduação em Recursos Naturais do Cerrado - RENAC, Anápolis, GO, Brasil
| | - P R Melo-Reis
- Pontifícia Universidade Católica de Goiás - PUCGO, Programa de Pós-graduação em Ciências Ambientas e Saúde, Goiânia, GO, Brasil
| | - N J Silva-Jr
- Pontifícia Universidade Católica de Goiás - PUCGO, Programa de Pós-graduação em Ciências Ambientas e Saúde, Goiânia, GO, Brasil
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Moreira LN, Feltrin C, Gonçalves JE, de Castro WV, Simões CMO, de Pádua RM, Cortes SF, Braga FC. Determination of l-(+)-bornesitol, the hypotensive constituent of Hancornia speciosa, in rat plasma by LC-MS/MS and its application on a pharmacokinetic study. Biomed Pharmacother 2020; 132:110900. [PMID: 33113433 DOI: 10.1016/j.biopha.2020.110900] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/02/2020] [Accepted: 10/14/2020] [Indexed: 10/23/2022] Open
Abstract
Hancornia speciosa is a medicinal plant with proven antihypertensive activity. The cyclitol l-(+)-bornesitol is the main constituent of its leaves and is a potent inhibitor of the angiotensin-converting enzyme. We herein investigated the pharmacokinetic properties of bornesitol administered orally to Wistar rats, as well as bornesitol permeation in Caco-2 cells. Bornesitol was isolated and purified from an ethanol extract of H. speciosa leaves. An ultra-high performance liquid chromatography coupled with electrospray ionization mass spectrometry (UPLC-ESI-MS/MS) method was developed and validated to quantify bornesitol in rat plasma based on Multiple Reaction Monitoring, using pentaerythritol as an internal standard. Pharmacokinetics was evaluated by the administration of single doses via intravenous in bolus (3 mg/kg) and gavage (3, 15 and 25 mg/kg). Bornesitol permeation was assayed in a transwell Caco-2 cells model, tested alone, or combined with rutin, or as a constituent of H. speciosa extract, using a developed and validated UPLC-ESI-MS/MS method. All assayed validation parameters (selectivity, residual effect, matrix effect, linearity, precision, accuracy and stability of analyte in plasma and solution) for the bioanalytical method met the acceptance criteria established by regulatory guidelines. Bornestiol reached peak plasma concentration within approximately 60 min after oral administration with a half-life ranging from 72.15 min to 123.69 min. The peak concentration and area under the concentration-time curve of bornesitol did not rise proportionally with the increasing doses, suggesting a non-linear pharmacokinetics in rats and the oral bioavailability ranged from 28.5%-59.3%. Bornesitol showed low permeability in Caco-2 cells, but the permeability apparently increased when it was administered either combined with rutin or as a constituent of H. speciosa extract. In conclusion, bornesitol was rapidly absorbed after a single oral administration to rats and followed a non-linear pharmacokinetics. The obtained data will be useful to guide further pre-clinical development of bornesitol-containing herbal preparations of H. speciosa as an antihypertensive agent.
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Affiliation(s)
- Luciana N Moreira
- Department of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, Brazil
| | - Clarissa Feltrin
- Department of Microbiology, Immunology and Parasitology, Center for Health Sciences, Universidade Federal de Santa Catarina, R. Eng. Agronômico Andrei Cristian Ferreira, s/n, Florianópolis, Brazil
| | - José E Gonçalves
- Department of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, Brazil
| | - Whocely V de Castro
- Núcleo de Pesquisa em Química Biológica, Universidade Federal de São João Del-Rey, Campus Centro-Oeste, R. Sebastião Gonçalves Coelho 400, Divinópolis, Brazil
| | - Cláudia M O Simões
- Department of Microbiology, Immunology and Parasitology, Center for Health Sciences, Universidade Federal de Santa Catarina, R. Eng. Agronômico Andrei Cristian Ferreira, s/n, Florianópolis, Brazil
| | - Rodrigo M de Pádua
- Department of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, Brazil
| | - Steyner F Cortes
- Department of Pharmacology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, Brazil
| | - Fernão C Braga
- Department of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, Brazil.
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