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Arruda GLD, Moraes GKAD, Junior AFC, Araujo AR, Chapla VM. Aromatic compounds from the endophytic fungus Asordaria conoidea and their allelochemical property using OSMAC strategy. Nat Prod Res 2021; 36:3999-4002. [PMID: 33663291 DOI: 10.1080/14786419.2021.1892098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Endophytic fungi are biodiverse and alternative source of bioactive compounds, due their different abilities of genetic expression and alteration of biosynthetic pathway when submitted to different culture conditions. The metabolic profile of three different crude extracts (A, B and C), obtained from the endophytic fungus Asordaria conoidea, were evaluated by HPLC and 1H NMR. Antioxidant and allelochemical activity were also evaluated. OSMAC diversified the metabolic production, mainly in the solid culture, where the tyrosol, 4-hydroxybenzaldehyde, 2-phenylacetamide and vanillic acid were isolated. The structures of the compounds were elucidated mainly by NMR. Extracts had antioxidant potential, however, only Extract C showed allelochemical activity, as inhibition of 65.5% in growth. This study confirms the efficiency of the OSMAC platform in producing extracts of different properties and compounds. Herein the A. conoidea was isolated for the first time as an endophytic microorganism.
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Affiliation(s)
| | | | | | - Angela Regina Araujo
- Organic Chemistry Department, São Paulo State University, UNESP, Chemistry Institute, Araraquara, Brazil
| | - Vanessa Mara Chapla
- Graduate Program in Chemistry, Federal University of Tocantins, UFT, Gurupi, Brazil
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Silva MC, Matos AF, Santos HLCD, Gomes JV, Pastura DGN, Pereira GL, Rocha EBD, Larangeira MDJC, Alves RS, Bastos LDO, Borba HR, Lima VMD. Laurus nobilis L.: assessment of the cytotoxic and genotoxic potential of aqueous extracts by micronucleus and Allium cepa assays. BRAZ J PHARM SCI 2020. [DOI: 10.1590/s2175-97902019000318302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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Arunachalam K, Damazo AS, Pavan E, Oliveira DM, Figueiredo FDF, Machado MTM, Balogun SO, Soares IM, Barbosa RDS, Alvim TDC, Ascêncio SD, Martins DTDO. Cochlospermum regium (Mart. ex Schrank) Pilg.: Evaluation of chemical profile, gastroprotective activity and mechanism of action of hydroethanolic extract of its xylopodium in acute and chronic experimental models. JOURNAL OF ETHNOPHARMACOLOGY 2019; 233:101-114. [PMID: 30611907 DOI: 10.1016/j.jep.2019.01.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 12/20/2018] [Accepted: 01/02/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cochlospermum regium (Bixaceae) is a native shrub of Brazil and its xylopodium (infusion/decoction) is being used for the treatment of gastritis, ulcers, arthritis, intestinal infections, gynaecological infections, skin diseases, among others. The aim of the present study was to evaluate the gastroprotective/antiulcer activity and the mechanism of action of hydroethanolic extract of C. regium xylopodium (HECr), using in vitro and in vivo models. Additionally, phytochemical constituents were identified by high-performance liquid chromatography (HPLC). MATERIALS AND METHODS C. regium xylopodium was macerated with ethanol/water to obtain the HECr. The phytochemical characterisation was carried out by HPLC. The antiulcer efficacy of HECr (25, 100 and 400 mg/kg, p.o.) was evaluated using acute acidified ethanol (HCl/EtOH), piroxicam and water immersion-induced experimental ulcer models. Chronic gastric ulcer healing activity of HECr was evaluated through acetic acid (99.8%) - induced model. Histological analysis and myeloperoxidase (MPO), glutathione (GSH), catalase (CAT) activities were also evaluated in chronic ulcer induced gastric tissues. The plausible mode of action of the HECr was assessed by estimation of gastric wall mucus production and the role of gastric secretion in pylorus ligature. The animals were also pre-treated with various inhibitors which includes indomethacin (10 mg/kg, p.o.) a selective inhibitor of cyclooxygenase, L-NAME (10 mg/kg, i.p.), an inhibitor of nitric oxide synthase, glibenclamide, a ATP-sensitive potassium channels (K+ATP) blocker (5 mg/kg, p.o.) or yohimbine (2 mg/kg, i.p.), an α2-adrenergic receptor antagonist. In vitro, Helicobacter pylori action was done by broth microdilution method. RESULTS The HPLC analysis data revealed the presence of gallic acid, rutin, myricetin, morin and kaempferol. HECr promoted protective effect against acute ulcers induced by HCl/EtOH with inhibitions of 47.52% (p < 0.01) and 62.69% (p < 0.001) at 100 and 400 mg/kg, and in piroxicam by 34.11% (p < 0.05), 49.14% (p < 0.01) and 61.34% (p < 0.001), at 25, 100 or 400 mg/kg, respectively, and in water restraint stress by 78.26% inhibition, p < 0.001, at the dose of 400 mg/kg when compared to the vehicle control group respectively. In the chronic gastric ulcer model, HECr (25, 100 and 400 mg/kg p.o.) significantly (p < 0.001) decreased the injured area by 58.80%, 77.87% and 71.10% respectively. Histological examination indicated that oral treatment of HECr promoted healing of gastric lesions by regenerating gastric mucosa layer with less inflammatory cells. HECr augmented the GSH, CAT activities and reduced MPO level. The pre-treatment with HECr increased the gastric wall mucus production. It also significantly altered the gastric secretion parameters by causing the reduction in the gastric juice volume, elevated the pH level and reduced the total acidity at all doses tested when compared with the vehicle group. HECr at the most active dose (100 mg/kg) reversed completely the reduction of PGs, NO production, closure of K+ATP- channels and α2-adrenoreceptor blockage - induced damages. In microdilution assay, the HECr showed good anti-Helicobacter pylori effect with MIC = 100 µg/mL. CONCLUSION The HECr presented preventive and curative effects in the experimental gastric ulcer models, besides good anti-Helicobacter pylori activity, which supports the traditional medicinal use of the xylopodium of this plant for gastrointestinal diseases. The underlying mechanisms of this antiulcerogenic/antiulcer action involve, at least, augmentation of mucus production, inhibition of gastric secretion, stimulation of PGs and NO synthesis. And that it involves activation of K+ATP channels and α-2-adrenergic receptors, in addition to an antioxidant activity, probably due to the presence of gallic acid and flavonoids in HECr.
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Affiliation(s)
- Karuppusamy Arunachalam
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, Brazil
| | - Amilcar Sabino Damazo
- Área de Histologia e Biologia Celular, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, Brazil
| | - Eduarda Pavan
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, Brazil
| | - Darley Maria Oliveira
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, Brazil
| | - Fabiana de Freitas Figueiredo
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, Brazil
| | - Marco Tulio Marra Machado
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, Brazil
| | - Sikiru Olaitan Balogun
- Curso de Farmácia, Faculdade Noroeste do Mato Grosso, Associação Juinense de Ensino Superior (AJES), Juína, MT 78320-000, Brazil
| | - Ilsamar Mendes Soares
- Laboratório de Pesquisa em Produtos Naturais, Curso de Medicina, Universidade Federal do Tocantins (UFT), Palmas, Brazil
| | - Robson Dos Santos Barbosa
- Laboratório de Pesquisa em Produtos Naturais, Curso de Medicina, Universidade Federal do Tocantins (UFT), Palmas, Brazil
| | - Tarso da Costa Alvim
- Faculty of Food Engineering, Agroenergy Post Graduate Program, Federal University of Tocantins, Palmas, Tocantins, Brazil
| | - Sérgio Donizeti Ascêncio
- Laboratório de Pesquisa em Produtos Naturais, Curso de Medicina, Universidade Federal do Tocantins (UFT), Palmas, Brazil
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Comparing Medicinal Uses of Cochlospermaceae throughout Its Geographic Range with Insights from Molecular Phylogenetics. DIVERSITY 2018. [DOI: 10.3390/d10040123] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Species of the Cochlospermaceae, a small mostly pantropical plant family, were evaluated at a continental scale for medicinal uses in traditional medicine. This ethnobotanical information was placed in a phylogenetic framework to make informed predictions in the search for new medicines and bioactive compounds. Medicinal plant-use data were mapped onto a molecular phylogeny based on DNA sequences of nuclear and chloroplast markers. Associations of medicinal uses among closely related species occurring in different geographic regions and among diverse cultures were evaluated. The most common medicinal uses for these species are those used to treat skin ailments, gastro-intestinal problems, malaria, and liver issues. The plant species with the most numerous uses is Cochlospermum tinctorium, which occurs primarily in West Africa. Closely related species being used by cultural groups in different geographic regions to treat the same illnesses suggests the presence of bioactive compounds with potential biomedical value, since they may represent independent discoveries of similar medicinally-active compounds. This leads to the speculation that those closely related species not currently being used to treat these ailments may also contain identical or similar medicinally-active compounds and are worthy of laboratory investigations.
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Sponchiado G, Adam ML, Silva CD, Soley BS, de Mello-Sampayo C, Cabrini DA, Correr CJ, Otuki MF. Quantitative genotoxicity assays for analysis of medicinal plants: A systematic review. JOURNAL OF ETHNOPHARMACOLOGY 2016; 178:289-296. [PMID: 26680588 DOI: 10.1016/j.jep.2015.10.026] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 10/17/2015] [Accepted: 10/17/2015] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Medicinal plants are known to contain numerous biologically active compounds, and although they have proven pharmacological properties, they can cause harm, including DNA damage. AIM OF THE STUDY Review the literature to evaluate the genotoxicity risk of medicinal plants, explore the genotoxicity assays most used and compare these to the current legal requirements. MATERIAL AND METHODS A quantitative systematic review of the literature, using the keywords "medicinal plants", "genotoxicity" and "mutagenicity", was undertakenQ to identify the types of assays most used to assess genotoxicity, and to evaluate the genotoxicity potential of medicinal plant extracts. RESULTS The database searches retrieved 2289 records, 458 of which met the inclusion criteria. Evaluation of the selected articles showed a total of 24 different assays used for an assessment of medicinal plant extract genotoxicity. More than a quarter of those studies (28.4%) reported positive results for genotoxicity. CONCLUSIONS This review demonstrates that a range of genotoxicity assay methods are used to evaluate the genotoxicity potential of medicinal plant extracts. The most used methods are those recommended by regulatory agencies. However, based on the current findings, in order to conduct a thorough study concerning the possible genotoxic effects of a medicinal plant, we indicate that it is important always to include bacterial and mammalian tests, with at least one in vivo assay. Also, these tests should be capable of detecting outcomes that include mutation induction, clastogenic and aneugenic effects, and structural chromosome abnormalities. In addition, the considerable rate of positive results detected in this analysis further supports the relevance of assessing the genotoxicity potential of medicinal plants.
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Affiliation(s)
- Graziela Sponchiado
- Departamento de Ciências Farmacêuticas, Universidade Federal do Paraná, Curitiba, PR, Brazil
| | | | - Caroline Dadalt Silva
- Departamento de Farmacologia, Universidade Federal do Paraná, Centro Politécnico, Curitiba, Brazil
| | - Bruna Silva Soley
- Departamento de Farmacologia, Universidade Federal do Paraná, Centro Politécnico, Curitiba, Brazil
| | | | - Daniela Almeida Cabrini
- Departamento de Farmacologia, Universidade Federal do Paraná, Centro Politécnico, Curitiba, Brazil
| | | | - Michel Fleith Otuki
- Departamento de Farmacologia, Universidade Federal do Paraná, Centro Politécnico, Curitiba, Brazil; Departamento de Ciências Farmacêuticas, Universidade Estadual de Ponta Grossa, Ponta Grossa, PR, Brazil.
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Cunha-Laura AL, Juliano Oliveira R, de Barros ALC, de Siqueira JM, Carmo Vieira MD, Alves Auharek S. Maternal exposure to Cochlospermum regium: a toxicological evaluation. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2013. [DOI: 10.1590/s0102-695x2013005000005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Vilar JB, Ferri PH, Chen-Chen L. Genotoxicity investigation of araticum(Annona crassiflora Mart., 1841, Annonaceae) using SOS-Inductest and Ames test. BRAZ J BIOL 2011; 71:197-202. [PMID: 21437418 DOI: 10.1590/s1519-69842011000100028] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2009] [Accepted: 02/24/2010] [Indexed: 11/22/2022] Open
Abstract
Although the use of medicinal plants or natural products has increased in recent decades all over the world, little information is available on their potential risk to health. Annona crassiflora Mart., a plant commonly known as araticum in Brazil, has been widely used in folk medicine for a long time since its seeds and leaves are often utilised in the treatment of cancer, snake bites, and venereal diseases, its fruits are consumed as tonic and astringent, and its bark powder has anti-fungal and anti-rheumatic properties. To evaluate the genotoxic and mutagenic properties induced by the ethanolic extract of araticum leaves, we performed the prophage λ induction (Inductest) and bacterial mutagenicity assays. We used Escherichia coli WP2s(λ) and RJF013 strains in the lysogenic induction test, whereas the mutagenic studies were carried out using Salmonella typhimurium histidine auxotroph strains TA97a, TA98, TA100, and TA102. Each experiment was performed three times in duplicate and included positive and negative controls. No statistically significant (p > 0.05) positive results were obtained for any of the strains tested, which suggests that the ethanolic extract of araticum leaves did not exhibit direct mechanisms of genotoxicity or mutagenicity that could be detected by the tests used in the present work.
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Affiliation(s)
- J B Vilar
- Laboratório de Radiobiologia de Microrganismos e Mutagênese, Departamento de Biologia Geral, Instituto de Ciências Biológicas 1, Universidade Federal de Goiás, Goiânia, GO, Brazil.
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Melo-Reis PR, Bezerra LSA, Vale MAAB, Canhête RFR, Chen-Chen L. Assessment of the mutagenic and antimutagenic activity of Synadenium umbellatum Pax latex by micronucleus test in mice. BRAZ J BIOL 2011; 71:169-74. [DOI: 10.1590/s1519-69842011000100024] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2009] [Accepted: 03/09/2010] [Indexed: 11/22/2022] Open
Abstract
Synadenium umbellatum Pax, popularly known as "cola-nota", is a medicinal plant that grows in tropical regions. The latex of this plant is used against various diseases, such as diabetes mellitus, leprosy, tripanosomiasis, leukemia, and several malignant tumors. The mutagenic, antimutagenic, and cytotoxic effects of the latex of this plant were investigated by measuring the frequency of micronuclei in mice bone marrow cells. To evaluate mutagenicity, the animals were treated with four doses of latex (10, 30, 50, and 100 mg/kg body weight). To study the antimutagenic activity, the animals were simultaneously treated with latex and mitomycin C (4 mg/kg). The cytotoxicity was evaluated by polychromatic and normochromatic erythrocytes ratio. Our results showed a significant increase of frequency of micronucleated polychromatic erythrocytes (MNPCE) compared to the negative control group (p < 0.05). Concerning antimutagenicity, the doses of 10 and 30 mg/kg co-administered with mitomycin C showed significant decrease in MNPCE frequency compared to the positive control group (p < 0.05). However, no significant reduction in MNPCE frequency (p > 0.05) was detected at the doses of 50 and 100 mg/kg. Under our experimental conditions, the results obtained indicate strong mutagenic and cytotoxic activity of S. umbellatum latex except the dose of 10 mg/kg and moderate antimutagenic effect at lower doses.
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