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Lemos LMS, Ọlọ Ba-Whẹ Nù OA, Olasupo IA, Balogun SO, Macho A, Pavan E, de Oliveira Martins DT. Brasiliensic acid: in vitro cytotoxic and genotoxic, in vivo acute toxicity and in silico pharmacological prediction of a new promising molecule. J Biomol Struct Dyn 2023:1-14. [PMID: 38054294 DOI: 10.1080/07391102.2023.2280713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 10/31/2023] [Indexed: 12/07/2023]
Abstract
Brasiliensic acid (Bras) is a chromanone isolated from Calophyllum brasiliense Cambèss. bark extracts with confirmed potential activity on gastric ulcer and Helicobacter pylori infection. This study aimed to investigate the in vitro and in vivo toxicity of Bras and molecular docking studies on its interactions with the H. pylori virulence factors and selected gastric cancer-related proteins. Cytotoxicity was evaluated by alamarBlue© assay, genotoxicity by micronucleus and comet assays, and on cell cycle by flow cytometry, using Chinese hamster epithelial ovary cells. Bras was not cytotoxic to CHO-K1 cells, and caused no chromosomal aberrations, nor altered DNA integrity. Furthermore, Bras inhibited damages to DNA by H2O2 at 1.16 µM. No cell cycle arrest was observed, but apoptosis accounted for 31.2% of the cell death observed in the CHO-K1 at 24 h incubation of the IC50. Oral acute toxicity by Hippocratic screening test in mice showed no relevant behavioral change/mortality seen up to 1,000 mg/kg. The molecular docking approach indicated potential interactions between Bras and the various targets for peptic ulcer and gastric cancer, notably CagA virulence factor of H. pylori and VEGFR-2. In conclusion, Bras is apparently safe and an optimization for Bras can be considered for gastric ulcer and cancer.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Larissa Maria Scalon Lemos
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, MT, Brazil
- Área de Farmacologia, Faculdade de Ciências da Saúde, Universidade do Estado de Mato Grosso (Unemat), Cáceres, MT, Brazil
| | | | | | - Sikiru Olaitan Balogun
- Programa de Pós-Graduação em Ciências da Saúde (PPGCS), Universidade Federal da Grande Dourados (UFGD), Dourados, MS, Brazil
| | - Antonio Macho
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, MT, Brazil
- Núcleo de Pesquisa em Morfologia e Imunologia Aplicada (NuPMIA). Pós-Graduação em Ciências Médicas, Faculdade de Medicina, Universidade de Brasília (UnB), Brasília, DF, Brazil
| | - Eduarda Pavan
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, MT, Brazil
| | - Domingos Tabajara de Oliveira Martins
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, MT, Brazil
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Ribeiro Neto JA, Pimenta Tarôco BR, Batista Dos Santos H, Thomé RG, Wolfram E, Maciel de A Ribeiro RI. Using the plants of Brazilian Cerrado for wound healing: From traditional use to scientific approach. JOURNAL OF ETHNOPHARMACOLOGY 2020; 260:112547. [PMID: 31917276 DOI: 10.1016/j.jep.2020.112547] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 01/01/2020] [Accepted: 01/01/2020] [Indexed: 05/27/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The Brazilian Cerrado is a biome with a remarkable diversity of plant species, many of which are used mainly by local communities as a source of treatment to several pathologic processes, especially for the treatment of wounds. However, no systematic review exists focusing on the plants used in this respect and on the appropriate pharmacological investigations that substantiate the actions that are reported. This study revisits the traditional use of medicinal plants from the Brazilian Cerrado in the treatment of wounds and the pharmacological characteristics of the reported plant species. METHOD ology: For the present article, previous studies on plants of the Brazilian Cerrado used for wound healing carried out between 1996 and 2018 were researched on various academic databases (PubMed, Elsevier, Springer, Lilacs, Google Escolar, and Scielo). RESULTS A total of 33 studies were carried out on 29 plant species distributed into 18 families, mainly Fabaceae or Leguminosae (9), Bignoniaceae (2), Asteraceae (2), Euphorbiaceae (2). Considering the great diversity of Cerrado plants, only a small number of wound healing studies were carried out between 1996 and 2018. It was observed that there is a large gap between experimentation assay and traditional use. There are only few connections between the form of use by the population and the experiments conducted in the laboratory. We found that only about 12% of these studies considered to use the methodologies, or at least in parts, to obtain extracts such as those used in folk medicine. Approximately 37% of the experiments were performed using the bark as well as the same ratio for leaves, 6% using the fruits, and 9% using the seeds, roots or flowers. In several studies, there are reports of chemical constituents such as flavonoids and tannins, followed by steroid terpenes, saponins, and fatty acids, and alkaloids. However, approximately 35% of the studies did not supply information about compounds present in the preparation or the effect which could be attributed to these agents in respect to wound healing. Regarding treatment, most of the studies employed a topical treatment, though intraperitoneal and oral treatment were also described using either topical, oil-based formulations, but also gel- or saline-based formulations. CONCLUSIONS Although, there has been an increase in knowledge about the biological actions of plants from Cerrado biome, the scientific basis for the traditional use of these local medicinal plants in wound healing does not provide sufficient information on the efficacy of the treatment, the molecular mechanisms, or, in particular, the effective doses used and the drug interactions. Thus, focused research investigating these hypotheses from traditional knowledge is necessary to prove the evidence of the potential pharmacological action.
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Affiliation(s)
- José Antônio Ribeiro Neto
- Universidade Federal de São João Del Rey - UFSJ - Divinópolis-MG, Rua Sebastião Gonçalves Coelho, 400, Bairro Chanadour, Cep 35.501-296, Divinópolis, MG, Brazil.
| | - Bruna Renata Pimenta Tarôco
- Universidade Federal de São João Del Rey - UFSJ - Divinópolis-MG, Rua Sebastião Gonçalves Coelho, 400, Bairro Chanadour, Cep 35.501-296, Divinópolis, MG, Brazil.
| | - Hélio Batista Dos Santos
- Universidade Federal de São João Del Rey - UFSJ - Divinópolis-MG, Rua Sebastião Gonçalves Coelho, 400, Bairro Chanadour, Cep 35.501-296, Divinópolis, MG, Brazil.
| | - Ralph Gruppi Thomé
- Universidade Federal de São João Del Rey - UFSJ - Divinópolis-MG, Rua Sebastião Gonçalves Coelho, 400, Bairro Chanadour, Cep 35.501-296, Divinópolis, MG, Brazil.
| | - Evelyn Wolfram
- Zurich University of Applied Sciences, Department of Life Sciences and Facility Management (ZHAW), CH-8820, Wädenswil, Switzerland.
| | - Rosy Iara Maciel de A Ribeiro
- Universidade Federal de São João Del Rey - UFSJ - Divinópolis-MG, Rua Sebastião Gonçalves Coelho, 400, Bairro Chanadour, Cep 35.501-296, Divinópolis, MG, Brazil.
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Silva LG, Gomes KS, Costa-Silva TA, Romanelli MM, Tempone AG, Sartorelli P, Lago JHG. Calanolides E1 and E2, two related coumarins from Calophyllum brasiliense Cambess. (Clusiaceae), displayed in vitro activity against amastigote forms of Trypanosoma cruzi and Leishmania infantum. Nat Prod Res 2020; 35:5373-5377. [PMID: 32441133 DOI: 10.1080/14786419.2020.1765347] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In the present work, the MeOH extract from stem barks of Calophyllum brasiliense Cambess. (Clusiaceae) displayed activity against amastigote forms of Trypanosoma cruzi and Leishmania infantum and was subjected to a bioactivity-guided fractionation to give two related coumarins - calanolides E1 (1) and E2 (2). Compounds 1 and 2 were actives to T. cruzi with EC50 values of 12.1 and 8.2 μM, respectively. When tested against L. infantum, the EC50 values were 37.1 and 29.1 μM, respectively. Compound 2, corresponding to anti isomer, showed the best selectivity index (SI) with values >24.4 to T. cruzi and >6.9 to L. infantum in comparison to the syn isomer 1. Furthermore, using an in silico multi-parametric prediction, both compounds did not contain any PAINS sub-structures. Therefore, these data suggest that coumarins 1 and 2 may contribute as scaffolds for the design of novel drug candidates for leishmaniasis and Chagas disease.
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Affiliation(s)
- Luciana Grus Silva
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, São Paulo, Brazil
| | - Kaio S Gomes
- Centre of Human and Natural Sciences, Federal University of ABC, Santo André, Brazil, São Paulo, Brazil
| | - Thais A Costa-Silva
- Centre of Human and Natural Sciences, Federal University of ABC, Santo André, Brazil, São Paulo, Brazil
| | - Maiara M Romanelli
- Centre for Parasitology and Mycology, Instituto Adolfo Lutz, São Paulo, Brazil
| | - Andre G Tempone
- Centre for Parasitology and Mycology, Instituto Adolfo Lutz, São Paulo, Brazil
| | - Patricia Sartorelli
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, São Paulo, Brazil
| | - João Henrique G Lago
- Centre of Human and Natural Sciences, Federal University of ABC, Santo André, Brazil, São Paulo, Brazil
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Abstract
Background:
Peptic ulcer is a deep gastrointestinal erosion disorder that involves
the entire mucosal thickness and can even penetrate the muscular mucosa. Nowadays, several
plants and compounds derived from it have been screened for their antiulcer activity. In
the last few years, there has been an exponential growth in the field of herbal medicine. This
field has gained popularity in both developing and developed countries because of their natural
origin and less side effects.
Objective:
This review aims to provide a comprehensive summary of currently available
knowledge of medicinal plants and phytoconstituents reported for their anti-ulcer properties.
Methods:
The worldwide accepted database like SCOPUS, PUBMED, SCIELO, NISCAIR,
ScienceDirect, Springerlink, Web of Science, Wiley, SciFinder and Google Scholar were
used to retrieve available published literature.
Results:
A comprehensive review of the present paper is an attempt to list the plants with
antiulcer activity. The review narrates the dire need to explore potential chemical moieties
that exert an antiulcer effect, from unexploited traditional plants. Furthermore, the present
study reveals the intense requirement to exploit the exact mechanism through which either
the plant extracts or their active constituents exhibit their antiulcer properties.
Conclusion:
This article is the compilation of the plants and its constituents reported for the
treatment of peptic ulcers. The Comprehensive data will surely attract the number of investigators
to initiate further research that might lead to the drugs for the treatment of ulcers. As
sufficient scientific data is not available on plants, most of the herbals cannot be recommended
for the treatment of diseases. This can be achieved by research on pure chemical
structures derived from plants or to prepare new lead compounds with proven beneficial
preclinical in vitro and in vivo effects. However, a lot remains to be done in further investigations
for the better status of medicinal plants.
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Affiliation(s)
- Minky Mukhija
- Ch. Devi Lal College of Pharmacy, Buria Road, Bhagwangarh, Jagadhri-135003, India
| | - Bhuwan Chandra Joshi
- School of Pharmaceutical Sciences, Sardar Bhagwan Singh Post Graduate Institute of Biomedical Sciences and Research, Balawala, Dehradun-248001, India
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Lemos LMS, Miyajima F, Castilho GRC, Martins DTO, Pritchard DM, Burkitt MD. Hexane Extracts of Calophyllum brasiliense Inhibit the Development of Gastric Preneoplasia in Helicobacter felis Infected INS-Gas Mice. Front Pharmacol 2017; 8:92. [PMID: 28289390 PMCID: PMC5326747 DOI: 10.3389/fphar.2017.00092] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Accepted: 02/13/2017] [Indexed: 01/26/2023] Open
Abstract
Objectives: Indigenous Latin American populations have used extracts from Calophyllum brasiliense, a native hardwood, to treat gastrointestinal symptoms for generations. The hexane extract of Calophyllum brasiliense stem bark (HECb) protects against ethanol-mediated gastric ulceration in Swiss–Webster mice. We investigated whether HECb inhibits the development of gastric epithelial pathology following Helicobacter felis infection of INS-Gas mice. Materials and Methods: Groups of five male, 6-week-old INS-Gas mice were colonized with H. felis by gavage. From 2 weeks after colonization their drinking water was supplemented with 2% Tween20 (vehicle), low dose HECb (33 mg/L, lHECb) or high dose HECb (133 mg/L, hHECb). Equivalent uninfected groups were studied. Animals were culled 6 weeks after H. felis colonization. Preneoplastic pathology was quantified using established histological criteria. Gastric epithelial cell turnover was quantified by immunohistochemistry for Ki67 and active-caspase 3. Cytokines were quantified using an electrochemiluminescence assay. Results: Vehicle-treated H. felis infected mice exhibited higher gastric atrophy scores than similarly treated uninfected mice (mean atrophy score 5.6 ± 0.87 SEM vs. 2.2 ± 0.58, p < 0.01). The same pattern was observed following lHECb. Following hHECb treatment, H. felis status did not significantly alter atrophy scores. Gastric epithelial apoptosis was not altered by H. felis or HECb administration. Amongst vehicle-treated mice, gastric epithelial cell proliferation was increased 2.8-fold in infected compared to uninfected animals (p < 0.01). Administration of either lHECb or hHECb reduced proliferation in infected mice to levels similar to uninfected mice. A Th17 polarized response to H. felis infection was observed in all infected groups. hHECb attenuated IFN-γ, IL-6, and TNF production following H. felis infection [70% (p < 0.01), 67% (p < 0.01), and 41% (p < 0.05) reduction vs. vehicle, respectively]. Conclusion: HECb modulates gastric epithelial pathology following H. felis infection of INS-Gas mice. Further studies are indicated to confirm the mechanisms underlying these observations.
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Affiliation(s)
- Larissa M S Lemos
- Gastroenterology Research Unit, Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of LiverpoolLiverpool, UK; Department of Basic Sciences in Health, Federal University of Mato GrossoMato Grosso, Brazil
| | - Fabio Miyajima
- Department of Molecular and Clinical Pharmacology, Institute of Translational Medicine, University of LiverpoolLiverpool, UK; Group of Neuropharmacology, Drug Research and Development Center, Federal University of CearáFortaleza, Brazil
| | - Geovane R C Castilho
- Department of Basic Sciences in Health, Federal University of Mato Grosso Mato Grosso, Brazil
| | | | - D Mark Pritchard
- Gastroenterology Research Unit, Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool Liverpool, UK
| | - Michael D Burkitt
- Gastroenterology Research Unit, Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool Liverpool, UK
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Lemos LMS, Oliveira RB, Sampaio BL, Ccana-Ccapatinta GV, Da Costa FB, Martins DTO. Brasiliensic and isobrasiliensic acids: isolation from Calophyllum brasiliense Cambess. and anti-Helicobacter pylori activity. Nat Prod Res 2016; 30:2720-2725. [DOI: 10.1080/14786419.2015.1137568] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Larissa M. S. Lemos
- Faculty of Medicine, Department of Basic Health Sciences, Federal University of Mato Grosso Cuiabá, Brazil
| | - Rejane B. Oliveira
- AsterBioChem Research Team, Laboratory of Pharmacognosy, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Bruno L. Sampaio
- AsterBioChem Research Team, Laboratory of Pharmacognosy, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Gari V. Ccana-Ccapatinta
- AsterBioChem Research Team, Laboratory of Pharmacognosy, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Fernando B. Da Costa
- AsterBioChem Research Team, Laboratory of Pharmacognosy, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Domingos T. O. Martins
- Faculty of Medicine, Department of Basic Health Sciences, Federal University of Mato Grosso Cuiabá, Brazil
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Safavi M, Shams-Ardakani M, Foroumadi A. Medicinal plants in the treatment of Helicobacter pylori infections. PHARMACEUTICAL BIOLOGY 2015; 53:939-960. [PMID: 25430849 DOI: 10.3109/13880209.2014.952837] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
CONTEXT Helicobacter pylori is a small, spiral, Gram-negative bacillus that plays a role in the pathogenesis of a number of diseases ranging from asymptomatic gastritis to gastric cancer. Schedule compliance, antibiotic drug resistance, and side-effects of triple or quadruple therapy have led to research for novel candidates from plants. OBJECTIVE The purpose of this paper is to review the most potent medicinal plants of recently published literature with anti-H. pylori activity. For centuries, herbals have been used by traditional healers around the world to treat various gastrointestinal tract disorders such as dyspepsia, gastritis, and peptic ulcer disease. The mechanism of action by which these botanicals exert their therapeutic properties has not been completely and clearly elucidated. Anti-H. pylori properties may be one of the possible mechanisms by which gastroprotective herbs treat gastrointestinal tract disorders. MATERIALS AND METHODS Electronic databases such as PubMed, Google scholar, EBSCO, and local databases were explored for medicinal plants with anti-H. pylori properties between 1984 and 2013 using key words "medicinal plants" and "Helicobacter pylori" or "anti-Helicobacter pylori". RESULTS A total of 43 medicinal plant species belonging to 27 families including Amaryllidaceae, Anacardiaceae, Apiaceae, Apocynaceae, Asclepiadoideae, Asteraceae, Bignoniaceae, Clusiaceae, Chancapiedra, Combretaceae, Cyperaceae, Euphorbiaceae, Fabaceae, Geraniaceae, Lamiaceae, Lauraceae, Lythraceae, Menispermaceae, Myristicaceae, Myrtaceae, Oleaceae, Papaveraceae, Plumbaginaceae, Poaceae, Ranunculaceae, Rosaceae, and Theaceae were studied as herbs with potent anti-H. pylori effects. CONCLUSION Traditional folk medicinal use of some of these plants to treat gastric infections is substantiated by the antibacterial activity of their extracts against H. pylori.
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Affiliation(s)
- Maliheh Safavi
- Department of Biotechnology, Iranian Research Organization for Science and Technology (IROST) , Tehran , Iran
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Nagaraja V, Eslick GD. Evidence-based assessment of proton-pump inhibitors in Helicobacter pylori eradication: A systematic review. World J Gastroenterol 2014; 20:14527-14536. [PMID: 25356018 PMCID: PMC4209521 DOI: 10.3748/wjg.v20.i40.14527] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 05/26/2014] [Indexed: 02/06/2023] Open
Abstract
Peptic ulcer disease continues to be issue especially due to its high prevalence in the developing world. Helicobacter pylori (H. pylori) infection associated duodenal ulcers should undergo eradication therapy. There are many regimens offered for H. pylori eradication which include triple, quadruple, or sequential therapy regimens. The central aim of this systematic review is to evaluate the evidence for H. pylori therapy from a meta-analytical outlook. The consequence of the dose, type of proton-pump inhibitor, and the length of the treatment will be debated. The most important risk factor for eradication failure is resistance to clarithromycin and metronidazole.
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Oliveira MC, Lemos LMS, de Oliveira RG, Dall'Oglio EL, de Sousa Júnior PT, de Oliveira Martins DT. Evaluation of toxicity of Calophyllum brasiliense stem bark extract by in vivo and in vitro assays. JOURNAL OF ETHNOPHARMACOLOGY 2014; 155:30-38. [PMID: 24933219 DOI: 10.1016/j.jep.2014.06.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 05/31/2014] [Accepted: 06/04/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Calophyllum brasiliense Camb., Clusiaceae, is commonly known as "guanandi" and its stem bark is used in Brazilian traditional medicine to treat rheumatism, vein problems, hemorrhoids and gastric ulcers. The aim of this study was to evaluate the toxicity of hexane extract of Calophyllum brasiliense stem bark (HECb) using in vitro and in vivo experimental models. MATERIALS AND METHODS In vitro toxicity was evaluated by Alamar Blue cytotoxicity assay and micronucleus test, using Chinese hamster ovary (CHO-k1) epithelial cells. in vivo toxicity was evaluated by oral acute and subchronic toxicity assays. In the oral acute toxicity screening, a single dose of HECb was administered to mice at doses ranging from 250 to 1000 mg/kg. In the subchronic study, HECb was administered orally for 30 days to Wistar rats at doses of 100 mg/kg and 500 mg/kg. Phytochemical analyses were performed by HPLC/UV-vis, secondary metabolites were quantified by spectrophotometric methods. RESULTS HECb presented IC50=119.94±4.31 µg/mL after a 24 h cytotoxicity test using CHO-k1 cells, showing low cytotoxicity. However, when the cells were exposed to HECb for 72 h, the IC50 value was 8.39±2.00 µg/mL, showing in this case, a pronounced cytotoxic effect. In the oral acute toxicity studies, doses up to 500 mg/kg of HECb did not cause any changes in both male and female mice. At 1000 mg/kg, male mice showed signs typical of depression and stimulation that were reversed at 72 h. Besides, female mice were more sensitive to the toxic effect of HECb at 1000 mg/kg, which initially presented typical agitation signals, followed by depression signals, leading to death of all the animals at 24h. In subchronic assay with rats, HECb administered orally at doses of 100 and 500 mg/kg did not cause significant changes in all clinical parameters evaluated. Histopathological analyses showed no deleterious effect in the vital organs of rats. Preliminary phytochemical analysis revealed the presence of phenolic compounds, steroids, and volatile coumarins. Analysis by HPLC showed two major peaks characteristic of chromanones. CONCLUSIONS In vitro toxicological tests showed that HECb exhibited cytotoxicity especially after 72 h of exposition, and mutagenicity on the highest tested dose. The in vivo studies demonstrated that HECb produced some toxicity signs at the highest dose tested, particularly, in the acute toxicity test but showed no significant signs of toxicity in the subchronic assay. Based on these and previous pharmacological studies, it is possible to say that HECb did not exhibit significant toxicity at its effective dose. This suggests that HECb is relatively safe in humans at its effective dose.
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Affiliation(s)
- Mariana Canevari Oliveira
- Department of Basic Sciences in Health, Faculty of Medicine, Federal University of Mato Grosso (UFMT), Av. Fernando Correa da Costa, no. 2367, Boa Esperança, Cuiabá, Mato Grosso 78060-900, Brazil
| | - Larissa Maria Scalon Lemos
- Department of Basic Sciences in Health, Faculty of Medicine, Federal University of Mato Grosso (UFMT), Av. Fernando Correa da Costa, no. 2367, Boa Esperança, Cuiabá, Mato Grosso 78060-900, Brazil
| | - Ruberlei Godinho de Oliveira
- Department of Basic Sciences in Health, Faculty of Medicine, Federal University of Mato Grosso (UFMT), Av. Fernando Correa da Costa, no. 2367, Boa Esperança, Cuiabá, Mato Grosso 78060-900, Brazil
| | - Evandro Luiz Dall'Oglio
- Natural Products Chemistry Research Laboratory, Department of Chemistry, Institute of Exact and Earth Sciences, Federal University of Mato Grosso (UFMT), Av. Fernando Correa da Costa, no. 2367, Boa Esperança, Cuiabá, Mato Grosso, 78060-900, Brazil
| | - Paulo Teixeira de Sousa Júnior
- Natural Products Chemistry Research Laboratory, Department of Chemistry, Institute of Exact and Earth Sciences, Federal University of Mato Grosso (UFMT), Av. Fernando Correa da Costa, no. 2367, Boa Esperança, Cuiabá, Mato Grosso, 78060-900, Brazil
| | - Domingos Tabajara de Oliveira Martins
- Department of Basic Sciences in Health, Faculty of Medicine, Federal University of Mato Grosso (UFMT), Av. Fernando Correa da Costa, no. 2367, Boa Esperança, Cuiabá, Mato Grosso 78060-900, Brazil.
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Gonçalves RM, Terra Lemos CO, Leal ICR, Nakamura CV, Cortez DAG, da Silva EA, Cabral VF, Cardozo-Filho L. Comparing conventional and supercritical extraction of (-)-mammea A/BB and the antioxidant activity of Calophyllum brasiliense extracts. Molecules 2013; 18:6215-29. [PMID: 23708233 PMCID: PMC6270124 DOI: 10.3390/molecules18066215] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Revised: 05/18/2013] [Accepted: 05/20/2013] [Indexed: 11/16/2022] Open
Abstract
Calophyllum brasiliense is a rich source of bioactive coumarins, xanthones and biflavonoids. The aim of the study was to compare the phenol contents and the antioxidant activity of C. brasiliense extracts obtained by conventional and supercritical fluid extraction (SFE) methods, as well as the quantification of crude extracts and (-)-mammea A/BB yields. Dichloromethane and hexane were used as solvents for the conventional extractions and SFE was developed using supercritical CO₂; the kinetic curves were modeled using a second-order empirical model. The dichloromethane extract presented the best total yield, although it showed the lowest content of (-)-mammea A/BB. The concentration of the coumarin was considerably higher in extracts obtained by the supercritical fluid method and a higher antioxidant activity was assigned to extracts obtained by this technique. Concerning the total phenolic contents, both the dichloro-methane and the supercritical extractions produced satisfactory amounts. The SFE method proved to be more promising than conventional methods.
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Affiliation(s)
- Renata Menoci Gonçalves
- Programa de Pós-Graduação em Engenharia Química, Universidade Estadual de Maringá (UEM), Av. Colombo, 5790, Bloco E-46, 87020-900 Maringá, Paraná, Brazil
| | - Caroline Ortega Terra Lemos
- Programa de Pós-Graduação em Engenharia Química, Universidade Estadual de Maringá (UEM), Av. Colombo, 5790, Bloco E-46, 87020-900 Maringá, Paraná, Brazil
| | - Ivana Correa Ramos Leal
- Faculdade de Farmácia, Departamento de Produtos Naturais e Alimentos, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Bloco A, 2°andar, Ilha do Fundão, Cidade Universitária, 21941-902, RJ, Rio de Janeiro, Brazil
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +55-21-8036-6600
| | - Celso Vataru Nakamura
- Programa de Pós-Graduação em Ciências Farmacêuticas, Av. Colombo, 5790, Bloco K-68, 87020-900 Maringá, Paraná, Brazil
| | | | - Edson Antonio da Silva
- Programa de Pós-Graduação em Engenharia Química, Universidade Estadual do Oeste do Paraná (UNIOESTE), Caixa postal 520, 85903-000,Toledo, Paraná, Brazil
| | - Vladimir Ferreira Cabral
- Programa de Pós-Graduação em Engenharia Química, Universidade Estadual de Maringá (UEM), Av. Colombo, 5790, Bloco E-46, 87020-900 Maringá, Paraná, Brazil
| | - Lúcio Cardozo-Filho
- Programa de Pós-Graduação em Engenharia Química, Universidade Estadual de Maringá (UEM), Av. Colombo, 5790, Bloco E-46, 87020-900 Maringá, Paraná, Brazil
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Carvalho HDO, Medeiros BJ, de Sá BM, C de Araújo JT, Kawakami MY, Favacho HA, Carvalho JCT. Study of dissolution profiles and desintegration of capsules containing the dried hydroethanolic extract of Calophyllum brasiliense. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2013. [DOI: 10.1590/s0102-695x2012005000145] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Lemos LMS, Martins TB, Tanajura GH, Gazoni VF, Bonaldo J, Strada CL, Silva MGD, Dall'oglio EL, de Sousa Júnior PT, Martins DTDO. Evaluation of antiulcer activity of chromanone fraction from Calophyllum brasiliesnse Camb. JOURNAL OF ETHNOPHARMACOLOGY 2012; 141:432-439. [PMID: 22425905 DOI: 10.1016/j.jep.2012.03.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Revised: 02/01/2012] [Accepted: 03/05/2012] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Calophyllum brasiliense Camb. (Clusiaceae), popularly known as 'guanandi', is found in the tropical areas and swampy lands. The latex exuding from its bark is used in the treatment of gastric ulcer in folk medicine. Several active compounds have been isolated from its stem bark among them, are the chromanone acids. Therefore, this study aimed to evaluate antiulcer activity and probable mechanism(s) of action of a fraction containing a mixture of chromanone acids (BI), derived by column chromatography fractionation of the hexane extract of the stem bark of Calophyllum brasiliense (HECb), using experimental in vitro and in vivo models. MATERIALS AND METHODS Ulcer was induced by oral administration of ethanol (75%, v/v) and indomethacin (50mg/kg). Malondialdehyde, reduced glutathione and catalase activity was measured in stomach tissue after ethanol induced ulcer. In order to evaluate the effect of BI on nitric oxide, ulcer was induced by ethanol in l-NAME pretreated animals. Anti-Helicobacter pylori activity was verified in disk diffusion and broth microdilution in vitro assays, using cagA+ and vacA+ Helicobacter pylori strains. RESULTS BI prevented the gastric ulceration caused by ethanol and indomethacin treatments. Its gastroprotective mechanism in ethanol-induced ulcer was partly due to reduction of MDA and CAT levels in the gastric tissue. BI did not affect the GSH levels and its gastroprotective effect was not reversed by pretreatment with l-NAME. BI showed anti-Helicobacter pylori in the both assays. CONCLUSION The results indicate that BI is partly responsible for the HECb antiulcer and anti-Helicobacter pylori effects.
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Affiliation(s)
- Larissa Maria Scalon Lemos
- Department of Basic Sciences in Health, Faculty of Medicine, Federal University of Mato Grosso (UFMT), Av. Fernando Correa da Costa, n 2367, Coxipó, Cuiabá, Mato Grosso, Zip Code: 78060-900, Brazil
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Brenzan MA, Santos AO, Nakamura CV, Filho BPD, Ueda-Nakamura T, Young MCM, Côrrea AG, Júnior JA, Morgado-Díaz JA, Cortez DAG. Effects of (-) mammea A/BB isolated from Calophyllum brasiliense leaves and derivatives on mitochondrial membrane of Leishmania amazonensis. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2012; 19:223-230. [PMID: 22285848 DOI: 10.1016/j.phymed.2011.10.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2011] [Revised: 08/30/2011] [Accepted: 10/14/2011] [Indexed: 05/31/2023]
Abstract
We have previously demonstrated antileishmanial activity on Leishmania amazonensis of the natural (1-2), synthetic (7) and derivatives of coumarin (-) mammea A/BB (3-6) isolated from the dichloromethane extract of Calophyllum brasiliense leaves. The aim of the present study was to evaluate morphological and ultrastructural alterations in Leishmania amazonensis induced by these compounds. In promastigote forms, all seven compounds produced significant morphological and ultrastructural alterations, as revealed by scanning and transmission electron microscopy. The compound 5,7-dihydroxy-8-(2-methylbutanoyl)-6-(3-methylbutyl)-4-phenyl-chroman-2-one (3), the most active antileishmanial with LD₅₀ of 0.9 μM), induced cell shrinkage and a rounded appearance of the cells. Parasites incubated in the presence of compound (3) showed ultrastructural changes, such as the appearance of mitochondrial swelling with a reduction in the density of the mitochondrial matrix and the presence of vesicles inside the mitochondrion, indicating damage and significant change in this organelle; abnormal chromatin condensation, alterations in the nuclear envelope, intense atypical cytoplasmic vacuolization, and the appearance of autophagic vacuoles were also observed. In addition, the compound (3) may be acting to depolarize the mitochondrial membrane potential of the cells, leading to death of the parasite.
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Affiliation(s)
- M A Brenzan
- Pós-doutoranda em Ciências Farmacêuticas, Departamento de Farmácia e Farmacologia, Universidade Estadual de Maringá, Av. Colombo 5790, 87020-900 Maringá, PR, Brazil
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Beserra AMSES, Calegari PI, Souza MDC, Dos Santos RAN, Lima JCDS, Silva RM, Balogun SO, Martins DTDO. Gastroprotective and ulcer-healing mechanisms of ellagic acid in experimental rats. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:6957-6965. [PMID: 21644797 DOI: 10.1021/jf2003267] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Ellagic acid (EA), a plant-derived polyphenol, exhibits antioxidant, anti-inflammatory, and gastroprotective effects. Its gastroprotective mechanisms have not been fully elucidated nor have its effects on chronic ulcer previously been described. Toward these ends, the antiulcer activities of EA were evaluated in acute (ethanol and indomethacin) and chronic (acetic acid) ulcer models in Wistar rats. In this study, oral administration of EA significantly prevented the gastric ulceration caused by ethanol, indomethacin, and acetic acid treatments. Its gastroprotective mechanism in ethanol-induced ulcer were partly due to intensification in the endogenous production of nitric oxide, an antioxidant effect by replenishing depletion of endogenous nonprotein sulfhydryls and attenuation of tumor necrosis factor-α increase, whereas in indomethacin ulcer, it is partly due to a reduction in the plasma level of leukotriene B(4). In acetic acid ulcer, promotion of ulcer-healing effects was partly due to attenuation of the elevated levels of the inflammatory cytokines TNF-α, interferon-γ, and interleukins-4 and -6. These findings suggest that ellagic acid exerts its antiulcer activity by strengthening the defensive factors and attenuating the offensive factors.
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García-Barrantes PM, Badilla B. Anti-ulcerogenic properties of Quassia amara L. (Simaroubaceae) standardized extracts in rodent models. JOURNAL OF ETHNOPHARMACOLOGY 2011; 134:904-910. [PMID: 21296139 DOI: 10.1016/j.jep.2011.01.052] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2010] [Revised: 01/15/2011] [Accepted: 01/28/2011] [Indexed: 05/30/2023]
Abstract
AIM OF THE STUDY Quassia amara L. is commonly used in Costarican folk medicine. It has been used for the treatment of a broad range of gastrointestinal symptoms such as dyspepsia, gastritis and constipation. In this study, the gastroprotective activity of two standardized extracts of Quassia amara L., Lipro(®) and Ligas(®), was evaluated. MATERIALS AND METHODS Anti-ulcerogenic properties were evaluated in female rats under acute ulcer-induction models (ethanol, indomethacin and hypotermic restraint). To get a deeper insight in the anti-ulcerogenic properties of the extracts, Ligas(®) was evaluated in the Shay rat model. Five parameters were estimated with this model: gastric mucus barrier, non-protein sulfhydril groups (NPSG) in the gastric mucosa, and pH, total acidity and peptic activity of the gastric juice. RESULTS Induction of ulcers by 95% ethanol (0.5 mL per os), indomethacin (100 mg/kgs.c.) and stress (2h in hypothermic restraint) was inhibited significantly with administration of Lipro(®) (p<0.05), in a dosage range from 4.9 mg/kg/d to 48.9 mg/kg/d. Treatment was given for one week. The extract Ligas(®) showed a significant augmentation of NPSG (p<0.05) in a dosage range from 4.0 to 39.7 mg/kg. Ligas(®) did not produce a significant change (p>0.05) in the other indicators. CONCLUSIONS Quassia amara L. standardized extracts, Lipro(®) and Ligas(®), showed an important anti-ulcerogenic effect in acute ulcer induction models. Their effect was related to an increase in gastric barrier mucus and non-protein sulfhydril groups.
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Affiliation(s)
- Pedro Manuel García-Barrantes
- Laboratorio de Fitofarmacología, Instituto de Investigaciones Farmacéuticas, Facultad de Farmacia, Universidad de Costa Rica, Costa Rica. pedro.garcia
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Brenzan MA, Nakamura CV, Filho BPD, Ueda-Nakamura T, Young MCM, Mitsui ML, Cortez DAG. QUANTITATIVE AND QUALITATIVE ANALYSIS OF (-) MAMMEA A/BB COUMARIN IN EXTRACTS OF CALOPHYLLUM BRASILIENSE CAMBESS (CLUSIACEAE) BY HPLC. J LIQ CHROMATOGR R T 2009. [DOI: 10.1080/10826070903442444] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- M. A. Brenzan
- a Pós Graduação em Ciências Farmacêuticas, Departamento de Farmácia e Farmacologia , Universidade Estadual de Maringá
| | - C. V. Nakamura
- b Laboratório de Microbiologia Aplicada aos Produtos Naturais e Sintéticos, Departamento de Análises Clínicas , Universidade Estadual de Maringá
| | - B. P. D. Filho
- b Laboratório de Microbiologia Aplicada aos Produtos Naturais e Sintéticos, Departamento de Análises Clínicas , Universidade Estadual de Maringá
| | - T. Ueda-Nakamura
- b Laboratório de Microbiologia Aplicada aos Produtos Naturais e Sintéticos, Departamento de Análises Clínicas , Universidade Estadual de Maringá
| | | | - M. L. Mitsui
- a Pós Graduação em Ciências Farmacêuticas, Departamento de Farmácia e Farmacologia , Universidade Estadual de Maringá
| | - D. A. G. Cortez
- a Pós Graduação em Ciências Farmacêuticas, Departamento de Farmácia e Farmacologia , Universidade Estadual de Maringá
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de Mesquita ML, de Paula JE, Pessoa C, de Moraes MO, Costa-Lotufo LV, Grougnet R, Michel S, Tillequin F, Espindola LS. Cytotoxic activity of Brazilian Cerrado plants used in traditional medicine against cancer cell lines. JOURNAL OF ETHNOPHARMACOLOGY 2009; 123:439-445. [PMID: 19501276 DOI: 10.1016/j.jep.2009.03.018] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2009] [Revised: 03/16/2009] [Accepted: 03/18/2009] [Indexed: 05/25/2023]
Abstract
UNLABELLED The search for new anti-cancer drugs is one of the most prominent research areas of natural products. Numerous active compounds isolated from Brazilian Cerrado plant species have been studied with promising results. AIM OF THE STUDY To investigate the cytotoxic potential of 412 extracts from Brazilian Cerrado plants used in traditional medicine belonging to 21 families against tumor cell lines in culture. MATERIAL AND METHOD Maceration of 50 plant species resulted in 412 hexane, dichloromethane, ethanol and hydroalcohol extracts. The cytotoxicity of the extracts was tested against human colon carcinoma (HCT-8), melanoma (MDA-MB-435), and brain (SF-295) tumor cell lines, using the thiazolyl blue test (MTT) assay. Bioassay-guided fractionation was performed for one active extract. RESULTS AND CONCLUSIONS Twenty-eight of the 412 tested extracts demonstrated a substantial antiproliferative effect, at least 85% inhibition of cell proliferation at 50 microg/mL against one or more cell lines. Those extracts are obtained from different parts of Anacardiaceae, Annonaceae, Apocynaceae, Clusiaceae, Flacourtiaceae, Sapindaceae, Sapotaceae, Simaroubaceae and Zingiberaceae. Complete dose-response curves were generated and IC(50) values were calculated for these active extracts against four cell lines HCT-8, MDA-MB-435, SF-295 and HL-60 (leukemia), and their direct cytotoxic effects were determined. In summary, 14 extracts of 13 species showed toxicity in all tested tumor cell lines, with IC(50) values ranging from 0.1 to 19.1 microg/mL. The strongest cytotoxic activity was found for the hexane extract of Casearia sylvestris var. lingua stem bark, with an IC(50) of 0.1 microg/mL for HCT-8, 0.9 microg/mL for SF-295, 1.2 microg/mL for MDA-MB-435, and 1.3 microg/mL for HL-60, and Simarouba versicolor root bark, with an IC(50) of 0.5 microg/mL for HCT-8, 0.7 microg/mL for SF-295, 1.5 microg/mL for MDA-MB-435, 1.1 microg/mL for HL-60. Bioassay-guided fractionation of the last extract led to the isolation of glaucarubinone, which showed pronounced activity against the four cell lines studied. Further studies of the active extracts are necessary for chemical characterization of the active compounds and more extensive biological evaluations.
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Souza MDC, Beserra AMS, Martins DC, Real VV, Santos RAND, Rao VS, Silva RMD, Martins DTDO. In vitro and in vivo anti-Helicobacter pylori activity of Calophyllum brasiliense Camb. JOURNAL OF ETHNOPHARMACOLOGY 2009; 123:452-458. [PMID: 19501278 DOI: 10.1016/j.jep.2009.03.030] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2008] [Revised: 03/11/2009] [Accepted: 03/14/2009] [Indexed: 05/27/2023]
Abstract
AIMS OF THE STUDY Calophyllum brasiliense (Camb.) is a medicinal tree that grows particularly in the hilly and forested regions of Brazil. Preparations from its stem bark are popular remedies for the treatment of chronic ulcers. Since earlier investigations on bark extracts evidenced gastroprotective and gastric acid inhibitory properties, this study evaluated the effects of hydroethanolic extract (HEECb) and the dichloromethanic fraction (DCMF), from Calophyllum brasiliense stem bark, against Helicobacter pylori, in vitro and in vivo. MATERIALS AND METHODS The in vitro assays were performed using the disk diffusion and broth microdilution methods to determine the minimum inhibitory concentration (MIC) values. The test substances were evaluated in vivo taking into account the delay in the gastric ulcer healing in Wistar rats, infected with Helicobacter pylori. RESULTS DCMF appeared the most active and potent in vitro against Helicobacter pylori growth with an MIC of 31 microg/mL. In the in vivo assays, rats ulcerated by acetic acid, and inoculated with Helicobacter pylori showed a marked delay in ulcer healing. Treatment with HEECb (50, 100 and 200 mg/kg) and DCMF (100 and 200 mg/kg) reduced the ulcerated area in a dose-dependent manner. While DCMF, at 200 mg/kg, increased the prostaglandin E2 (PGE2) level, both HEECb and DCMF decreased the number of urease-positive animals, as confirmed by the reduction of Helicobacter pylori presence in histopathological analysis. CONCLUSION The results suggest that the antiulcer activity of Calophyllum brasiliense is due, in part, to its anti-Helicobacter pylori action, validating the popular use of this species.
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Affiliation(s)
- Maria do Carmo Souza
- Department of Basic Science in Health, Faculty of Medical Science, Federal University of Mato Grosso (UFMT), Av. Fernando Correa da Costa s/n, Coxipó, Cuiabá, MT CEP: 78060-900, Brazil.
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Cechinel Filho V, Meyre-Silva C, Niero R. Chemical and pharmacological aspects of the genus Calophyllum. Chem Biodivers 2009; 6:313-27. [PMID: 19319867 DOI: 10.1002/cbdv.200800082] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The Calophyllum genus (Clusiaceae) is composed of ca. 200 species, with a pantropical distribution. Some species are used as medicinal agents to treat a large number of diseases, including gastric ulcers, infections, pain, tumors, and inflammatory processes, among others. A review of the literature regarding the chemical and biological aspects of these plants indicates cytotoxic activity against several cell lines, inhibition of HIV-1 reverse transcriptase, antisecretory and cytoprotective properties, antinociceptive, molluscicidal and antimicrobial effects, etc., related particularly to the presence of coumarins, xanthones, flavonoids, and triterpenes. This review, therefore, deals with the chemistry, and pharmacology or biology of the main plants belonging to the genus Calophyllum, with particular emphasis on C. brasiliense, studied by our research group.
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Affiliation(s)
- Valdir Cechinel Filho
- Programa de Mestrado em Ciências Farmacêuticas e Núcleo de Investigações Químico-Farmacêuticas/CCS, Universidade do Vale do Itajaí, Itajaí, SC, Brazil
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Su XH, Zhang ML, Li LG, Huo CH, Gu YC, Shi QW. Chemical constituents of the plants of the genus Calophyllum. Chem Biodivers 2009; 5:2579-608. [PMID: 19089819 PMCID: PMC7161999 DOI: 10.1002/cbdv.200890215] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiao-Hui Su
- Department of Natural Product Chemistry, School of Pharmaceutical Sciences, Hebei Medical University, 361 Zhongshan East Road, Shijiazhuang, Hebei Province, P. R. China
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Brenzan MA, Nakamura CV, Dias Filho BP, Ueda-Nakamura T, Young MCM, Côrrea AG, Júnior JA, dos Santos AO, Cortez DAG. Structure–activity relationship of (−) mammea A/BB derivatives against Leishmania amazonensis. Biomed Pharmacother 2008; 62:651-8. [DOI: 10.1016/j.biopha.2008.08.024] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2008] [Revised: 08/11/2008] [Accepted: 08/27/2008] [Indexed: 10/21/2022] Open
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Caneppele D, Vieira PC, Dall’oglio EL, da Silva LE, Sousa PT. Unequivocal NMR assignments:O-methoxy-methyl esters derivatives of acid chromanones fromCalophyllum brasilienseCAMB. (Guanandi). Nat Prod Res 2008; 22:846-53. [DOI: 10.1080/14786410701582282] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Falcão HS, Mariath IR, Diniz MFFM, Batista LM, Barbosa-Filho JM. Plants of the American continent with antiulcer activity. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2008; 15:132-46. [PMID: 17904832 DOI: 10.1016/j.phymed.2007.07.057] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Peptic ulcer is a chronic and appalling disease. Today, it is dominant among the diseases that affect the world's population. The principal factors causing this disease are inadequate dietetic habits, prolonged use of non-steroidal anti-inflammatory drugs, stress and infection by Helicobacter pylori, in addition to other factors of genetic origin. The present work is a literature survey of plant extracts from the American continent that have been reported to show antiulcer activity. This review refers to 58 plants with their families, parts used, type of extract used, model bioassays and their activity. This work intends to aid the researchers in the study of natural products appropriate to the treatment of stomach and intestinal diseases, in general, and peptic ulcer in particular.
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Affiliation(s)
- H S Falcão
- Laboratório de Tecnologia Farmacêutica, Universidade Federal da Paraíba, Cx. Postal 5009, 58051-970 João Pessoa, PB, Brazil
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Braga FC, Serra CP, Viana NS, Oliveira AB, Côrtes SF, Lombardi JA. Angiotensin-converting enzyme inhibition by Brazilian plants. Fitoterapia 2007; 78:353-8. [PMID: 17513067 DOI: 10.1016/j.fitote.2007.02.007] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2006] [Accepted: 02/01/2007] [Indexed: 11/25/2022]
Abstract
The potential antihypertensive activity of Brazilian plants was evaluated in vitro by its ability to inhibit the angiotensin-converting enzyme (ACE). Forty-four plants belonging to 30 families were investigated. Plants were selected based on their popular use as antihypertensive and/or diuretics. The following plants presented significant ACE inhibition rates: Calophyllum brasiliense, Combretum fruticosum, Leea rubra, Phoenix roebelinii and Terminalia catappa.
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Affiliation(s)
- Fernão C Braga
- Faculdade de Farmácia, Universidade Federal de Minas Gerais, Av. Antônio Carlos, Belo Horizonte, Brazil.
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Brenzan MA, Nakamura CV, Prado Dias Filho B, Ueda-Nakamura T, Young MCM, Aparício Garcia Cortez D. Antileishmanial activity of crude extract and coumarin from Calophyllum brasiliense leaves against Leishmania amazonensis. Parasitol Res 2007; 101:715-22. [PMID: 17483964 DOI: 10.1007/s00436-007-0542-7] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2007] [Accepted: 04/10/2007] [Indexed: 10/23/2022]
Abstract
Infections by protozoans of the genus Leishmania are a major worldwide health problem, with high endemicity in developing countries. The drugs of choice for the treatment of leishmaniasis are the pentavalent antimonials, which show renal and cardiac toxicity. As part of a search for new drugs against leishmaniasis, we evaluated the in vitro leishmanicidal activity of the (-) mammea A/BB. The compound (-) mammea A/BB is a coumarin-type mammea purified from a dichloromethane crude extract of leaves of Calophyllum brasiliense Cambess (Clusiaceae). The isolated compound was characterized using spectral analyses by UV, infrared, nuclear magnetic resonance of (1)H, (13)C, distortionless enhancement by polarization transfer, correlation spectroscopy, heteronuclear multiple bond correlation, and heteronuclear multiple quantum coherence. The compound (-) mammea A/BB showed significant activity against promastigote and amastigote forms of L. amazonensis, with IC(50) (50% inhibition concentration of cell growth) at a concentration of 3.0 and 0.88 mug/ml and IC(90) (90% inhibition concentration of cell growth) of 5.0 and 2.3 microg/ml, respectively. The coumarin (-) mammea A/BB showed no cytotoxicity against J774G8 macrophages in culture, when it was tested at high concentrations that inhibited promastigote forms. Electron microscopy studies revealed considerable ultrastructural changes when promastigote forms of L. amazonensis were treated with 3.0 microg/ml of the coumarin (-) mammea A/BB for 72 h. We observed significant changes such as mitochondrial swelling with concentric membranes in the mitochondrial matrix and intense exocytic activity in the region of the flagellar pocket. Other alterations included the appearance of binucleate cells and multiple cytoplasmic vacuolization. These results showed that (-) mammea A/BB is a potent growth inhibitor of L. amazonensis and caused important changes in the parasite's ultrastructure. This study provided new perspectives on the development of novel drugs with leishmanicidal activity obtained from natural products.
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Reyes-Chilpa R, Baggio CH, Alavez-Solano D, Estrada-Muñiz E, Kauffman FC, Sanchez RI, Mesia-Vela S. Inhibition of gastric H+,K+-ATPase activity by flavonoids, coumarins and xanthones isolated from Mexican medicinal plants. JOURNAL OF ETHNOPHARMACOLOGY 2006; 105:167-72. [PMID: 16314059 DOI: 10.1016/j.jep.2005.10.014] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2005] [Revised: 09/30/2005] [Accepted: 10/13/2005] [Indexed: 05/05/2023]
Abstract
Medicinal plants are commonly used in Latin American folk medicine for the treatment of gastric problems. In order to understand the properties of some of their chemical constituents, four natural xanthones, an acetylated derivative, two coumarins (mammea A/BA and mammea C/OA) isolated from Calophyllum brasiliense Cambess and two flavonoids (minimiflorin and mundulin) isolated from Lonchocarpus oaxacensis Pittier, and the chalcone lonchocarpin isolated from Lonchocarpus guatemalensis Benth were tested for their activities on gastric H+,K+-ATPase isolated from dog stomach. All the compounds tested inhibited H+,K+-ATPase activity with varied potency. The xanthones inhibited the H+,K+-ATPase with IC50 values ranging from 47 microM to 1.6 mM. Coumarins inhibited H+,K+-ATPase with IC50 values of 110 and 638 microM. IC50 values for the flavonoids ranged from 9.6 to 510 microM among which minimiflorin was the most potent. The results suggest that H+,K+-ATPase is sensitive to inhibition by several types of structurally different natural compounds. The potency of the effects on gastric H+,K+-ATPase depends on the presence, position and number of hydroxyls groups in the molecule. Collectively, these results suggest a potential for important pharmacological and toxicological interactions by these types of natural products at the level of H+,K+-ATPase which may explain, at least in part, the gastroprotective properties, indicated by traditional medicine, of the plants from which these compounds were isolated.
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Affiliation(s)
- Ricardo Reyes-Chilpa
- Instituto de Química, Universidad Nacional Autónoma de México, D.F. Mexico, Mexico
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Crane S, Aurore G, Joseph H, Mouloungui Z, Bourgeois P. Composition of fatty acids triacylglycerols and unsaponifiable matter in Calophyllum calaba L. oil from Guadeloupe. PHYTOCHEMISTRY 2005; 66:1825-31. [PMID: 16045947 DOI: 10.1016/j.phytochem.2005.06.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2005] [Revised: 06/08/2005] [Accepted: 06/08/2005] [Indexed: 05/03/2023]
Abstract
The composition of the kernel oils of two Calophyllum species (Calophyllum calaba L. and Calophyllum inophyllum L.) was investigated. The physico-chemical properties and fatty acid composition of the kernel oils were examined. In two species, oleic acid C18:1 (39.1-50%) is the dominating fatty acid followed by linoleic acid C18:2 (21.7-31.1%) as the second major fatty acid. Stearic C18:0 (13.4-14.3%) and palmitic C16:0 (11-13.7%) acids are the major saturates. The oils contains an appreciable amount of unsaturated fatty acids (70.8-73.10%). Most of the fatty acids are present as triacylglycerol (76.7-84%), twenty one triacylglycerols are detected with predominantly unsaturated triacylglycerols. The total unsaponifiable content, its general composition and the identity of the components of the sterol and tocopherol fractions are presented. In both species, analysis of the unsaponifiable fractions revealed the preponderance of phytosterols, mainly stigmasterol (35.8-45.1%) and beta-sitosterol (41.1-43.1%). Among the eight tocopherols and tocotrienols present in two species, variations exist; alpha-tocopherol (183 mg/kg) is the main tocopherol in Calophyllum calaba L. and Delta-tocotrienol (236 mg/kg) is the dominant tocotrienol in Calophyllum inophyllum L.
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Affiliation(s)
- Sylvie Crane
- Université Antilles-Guyane, Laboratoire QPVT (Qualité des Produits Végétaux Tropicaux), Department of Chemistry, Institut Universitaire et Technologique de Kourou, Campus de Saint Claude, France.
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Abstract
AIM: To develop a method of quantifying the pathological changes gastric ulcer in the experimental mice.
METHODS: The experimental mice were fed with alcohol to establish the model of gastric ulcer. The area of the ulcer was quantified by weight and picture integration. Then the ratio of ulcer area to total stomach area (ulcer area ratio, UAR) was calculated to assess the degrees of the ulcers on the stomach wall. Furthermore, the methods of weighing, picture integration, marking, and grading were compared.
RESULTS: The mark indexes and the UAR by weight and picture integration were significantly different between different grading groups (Grade 4 vs Grade 2 vs Grade 1: 84.0±27.8 vs 19.6±8.1 vs 4.0±1.0, P<0.05; 40.74±0.26% vs 4.22±0.01%vs 1.03±0.01%, P<0.05; 31.57 ±0.16% vs 4.36±0.02% vs 2.43±0.02%, P<0.05) respectively, but the petechiae have no significant difference (P>0.05). Except in one mouse, the differences of UAR between by weight and picture integration in other five mice were 0.69, 4.89, 7.41, 1.26 and 2.76 respectively, which showed UAR had no marked difference between the two methods. In comparison of model I with model II, there were no obvious differences in the mark indexes, grading indexes and the numbers of petechiae while the UARs between by weight and picture integration were significantly different (6.14±0.08%vs 27.64±0.31%, P<0.05; 6.56±0.07% vs 21.22±0.21%, P<0.05).
CONCLUSION: The degrees of the gastric ulcer can be accessed by weight, picture integration, marking and grading. Weighing is better for measuring the ulcer over the fourth grade while picture integration can be used in all the degrees. The sensitivity and accuracy of picture integration and weighing are higher than those of traditional marking and grading.
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Shen YC, Wang LT, Khalil AT, Chiang LC, Cheng PW. Bioactive pyranoxanthones from the roots of Calophyllum blancoi. Chem Pharm Bull (Tokyo) 2005; 53:244-7. [PMID: 15684529 DOI: 10.1248/cpb.53.244] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Phytochemical investigation of the roots of Calophyllum blancoi growing in Taiwan resulted in the isolation of three new pyranoxanthones, blancoxanthone (1), acetyl blancoxanthone (2) and 3-hydroxyblancoxanthone (3), in addition to two known pyranoxanthones, pyranojacaeubin (4) and caloxanthone (5). Structural characterization of the isolated compounds was determined by spectral analyses especially 2-D NMR. Biological study of the isolated xanthones revealed that blancoxanthone (1) exhibited significant anti-coronavirus activity.
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Affiliation(s)
- Ya-Ching Shen
- Institute of Marine Resources, National Sun Yat-sen University, Taiwan.
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Al-Howiriny T, Al-Sohaibani M, El-Tahir K, Rafatullah S. Prevention of experimentally-induced gastric ulcers in rats by an ethanolic extract of "Parsley" Petroselinum crispum. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2004; 31:699-711. [PMID: 14696673 DOI: 10.1142/s0192415x03001405] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
An ethanolic extract of Parsley, Petroselinum crispum (Mill.) Nym.ex A.W. Hill (Umbelliferae), was tested for its ability to inhibit gastric secretion and to protect gastric mucosa against the injuries caused by pyloric ligation, hypothermic restraint stress, indomethacin and cytodestructive agents (80% ethanol, 0.2 M NaOH and 25% NaCl) in rats. The extract in doses of 1 and 2 g/kg body weight had a significant antiulcerogenic activity on the models used. Besides, ethanol-induced depleted gastric wall mucus and non-protein sulfhydryl contents were replenished by pretreatment with Parsley extract. Acute toxicity tests showed a large margin of safety for the extract. The phytochemical screening of Parsley leaves revealed the presence of tannins, flavonoids, sterols and/or triterpenes.
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Affiliation(s)
- Tawfeq Al-Howiriny
- Medicinal, Aromatic and Poisonous Plants Research Center (MAPPRC), College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
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Cottiglia F, Dhanapal B, Sticher O, Heilmann J. New chromanone acids with antibacterial activity from Calophyllum brasiliense. JOURNAL OF NATURAL PRODUCTS 2004; 67:537-541. [PMID: 15104480 DOI: 10.1021/np030438n] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Six novel chromanone acids (1-6) were isolated from the bark of Calophyllum brasiliense Cambess. Their structures were elucidated on the basis of 1D and 2D NMR experiments, as well as mass spectrometry. All compounds showed moderate to strong antibacterial activity against Bacillus cereus and Staphylococcus epidermidis, with 1 and 2 being most active. None of the compounds were cytotoxic against KB, Jurkat T, and myosarcoma cancer cells up to 20 microg/mL.
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Affiliation(s)
- Filippo Cottiglia
- Dipartimento Farmaco Chimico Tecnologico, Facoltà di Farmacia, University of Cagliari, 09124 Cagliari, Italy
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Agripino DG, Lima MEL, Silva MRD, Meda CI, Bolzani VDS, Cordeiro I, Young MCM, Moreno PRH. Screening of Brazilian plants for antimicrobial and dnadamaging activities: I. Atlantic rain forest . Ecological station juréia-itatins. BIOTA NEOTROPICA 2004. [DOI: 10.1590/s1676-06032004000200009] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
I. Atlantic Rain Forest . Ecological Station Juréia-Itatins) Crude extracts from 88 plant species occurring in São Paulo State (Brazil), collected in an Atlantic Forest region, have been screened for antimicrobial and DNA-damaging activities. Of the 114 extracts assayed for antibacterial activity, only the extracts from leaves and stems of Aspidosperma ramiflorum (Apocynaceae) showed a slight activity against Escherichia coli. In the antifungal assay with Candida albicans, no active extract was observed, while in the bioautography assay with Cladosporium sphaerospermum and C. cladosporioides 12% were active. However, only the extract of Psychotria mapoureoides (Rubiaceae) stems showed a strong inhibition of both fungi. The DNA-damaging assay with mutant strains of Saccharomyces cerevisiae resulted in 17.5 % of active extracts. The majority (55 %) of the active extracts showed selectivity for the DNA-repair mechanism of topoisomerase II and only 20 % showed a selective response for the mechanism of topoisomerase I.
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