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Fakudze NT, Sarbadhikary P, George BP, Abrahamse H. Ethnomedicinal Uses, Phytochemistry, and Anticancer Potentials of African Medicinal Fruits: A Comprehensive Review. Pharmaceuticals (Basel) 2023; 16:1117. [PMID: 37631032 PMCID: PMC10458058 DOI: 10.3390/ph16081117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/01/2023] [Accepted: 08/04/2023] [Indexed: 08/27/2023] Open
Abstract
Africa is home to diverse medicinal plants that have been used for generations for the treatment of several different cancers and, presently, they are gaining interest from researchers as promising approaches to cancer treatment. This review aims to provide a comprehensive review of dietary and medicinal African fruits including their traditional uses, botanical description, ethnobotanical uses, bioactive phytochemical compositions, and anticancer properties investigated to date in vitro, in vivo, and in clinical studies. Data on recent updates concerning the traditional uses and anticancer properties of these fruits were collected from a myriad of available publications in electronic databases, such as Web of Science, PubMed, ScienceDirect, Scopus, SpringerLink, and Google Scholar. The results suggest that approximately 12 native or commercially grown African fruits belonging to different plant species, including Tribulus terrestris, Xanthium strumarium, Withania somnifera, Xylopia aethiopica, Abelmoschus esculentus, Carissa macrocarpa, Carpobrotus edulis, Syzygium cumini, Kigelia Africana, Annona muricata, Persea americana, and Punica granatum, have been reported for their potential as treatment options for the management of cancer. We further found that approximately eight different fruits from native plant species from Africa, namely, Sclerocarya birrea, Dovyalis caffra, Parinari curatellifolia, Mimusops caffra, Carpobrotus edulis, Vangueria infausta, Harpephyllum caffrum, and Carissa macrocarpa, have been widely used for the traditional treatment of different ailments but somehow failed to gain the interest of researchers for their use in anticancer research. In this review, we show the potential use of various fruits as anticancer agents, such as Tribulus terrestris, Xanthium strumarium, Withania somnifera, Xylopia aethiopica, Abelmoschus esculentus, Carissa macrocarpa, Carpobrotus edulis, Syzygium cumini, Kigelia Africana, Annona muricata, Persea americana, and Punica granatum; unfortunately, not enough reported research data have been published to gain thorough mechanistic insights and clinical applications. Additionally, we discuss the possibility of the utilization of potential phytochemicals from fruits like Persea americana and Punica granatum in anticancer research, as well as future directions.
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Affiliation(s)
| | - Paromita Sarbadhikary
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, Doornfontein, P.O. Box 1701, Johannesburg 2028, South Africa; (N.T.F.); (H.A.)
| | - Blassan P. George
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, Doornfontein, P.O. Box 1701, Johannesburg 2028, South Africa; (N.T.F.); (H.A.)
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Current Trends in Toxicity Assessment of Herbal Medicines: A Narrative Review. Processes (Basel) 2022. [DOI: 10.3390/pr11010083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Even in modern times, the popularity level of medicinal plants and herbal medicines in therapy is still high. The World Health Organization estimates that 80% of the population in developing countries uses these types of remedies. Even though herbal medicine products are usually perceived as low risk, their potential health risks should be carefully assessed. Several factors can cause the toxicity of herbal medicine products: plant components or metabolites with a toxic potential, adulteration, environmental pollutants (heavy metals, pesticides), or contamination of microorganisms (toxigenic fungi). Their correct evaluation is essential for the patient’s safety. The toxicity assessment of herbal medicine combines in vitro and in vivo methods, but in the past decades, several new techniques emerged besides conventional methods. The use of omics has become a valuable research tool for prediction and toxicity evaluation, while DNA sequencing can be used successfully to detect contaminants and adulteration. The use of invertebrate models (Danio renio or Galleria mellonella) became popular due to the ethical issues associated with vertebrate models. The aim of the present article is to provide an overview of the current trends and methods used to investigate the toxic potential of herbal medicinal products and the challenges in this research field.
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Pastura DGN, Sousa JDV, Silva MC, Matos AF, Santos HLCD, Pereira GL, Rocha EBD, Alves RS, Bastos LDO, Pires LDO, Castro RN, Borba HR, Lima VMD. Persea americana Mill.: Evaluation of cytogenotoxicity and phytochemical prospection of leaf extracts. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902022e19261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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Antibacterial Potential by Rupture Membrane and Antioxidant Capacity of Purified Phenolic Fractions of Persea americana Leaf Extract. Antibiotics (Basel) 2021; 10:antibiotics10050508. [PMID: 33946930 PMCID: PMC8146011 DOI: 10.3390/antibiotics10050508] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/22/2021] [Accepted: 04/27/2021] [Indexed: 11/25/2022] Open
Abstract
The present research focused on evaluating the antibacterial effect and the mechanism of action of partially purified fractions of an extract of Persea americana. Furthermore, both its antioxidant capacity and composition were evaluated. The extract was fractionated by vacuum liquid chromatography. The antimicrobial effect against Staphylococcus aureus (ATCC 6538), Escherichia coli (ATCC 11229), Pseudomonas aeruginosa (ATCC 15442), and Salmonella choleraesuis (ATCC 1070) was analyzed by microdilution and the mechanism of action by the Sytox green method. The antioxidant capacity was determined by DPPH, FRAP, and ABTS techniques and the composition by Rp-HPLC-MS. All fractions showed a concentration-dependent antibacterial effect. Fractions F3, F4, and F5 (1000 µg/mL) showed a better antibacterial effect than the extract against the bacteria mentioned. The F3 fraction showed inhibition of 95.43 ± 3.04% on S. aureus, F4 showed 93.30 ± 0.52% on E. coli, and F5 showed 88.63 ± 1.15% on S. choleraesuis and 86.46 ± 3.20% on P. aeruginosa. The most susceptible strain to the treatment with the extract was S. aureus. Therefore, in this strain, the bacterial membrane damage induced by the extract and fractions was evidenced by light fluorescence microscopy. Furthermore, the extract had better antioxidant action than each fraction. Finally, sinensitin was detected in F3 and cinnamoyl glucose, caffeoyl tartaric acid, and cyanidin 3-O-(6′′-malonyl-3′′-glucosyl-glucoside) were detected in F4; esculin and kaempferide, detected in F5, could be associated with the antibacterial and antioxidant effect.
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Jimenez P, Garcia P, Quitral V, Vasquez K, Parra-Ruiz C, Reyes-Farias M, Garcia-Diaz DF, Robert P, Encina C, Soto-Covasich J. Pulp, Leaf, Peel and Seed of Avocado Fruit: A Review of Bioactive Compounds and Healthy Benefits. FOOD REVIEWS INTERNATIONAL 2020. [DOI: 10.1080/87559129.2020.1717520] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Paula Jimenez
- Departamento De Nutricion, Facultad De Medicina, Universidad De Chile, Santiago, Chile
| | - Paula Garcia
- Departamento De Nutricion, Facultad De Medicina, Universidad De Chile, Santiago, Chile
| | - Vilma Quitral
- Escuela De Nutricion Y Dietetica, Facultad De Salud, Universidad Santo Tomas, Santiago, Chile
| | - Karla Vasquez
- Departamento De Nutricion, Facultad De Medicina, Universidad De Chile, Santiago, Chile
| | - Claudia Parra-Ruiz
- Departamento De Nutricion, Facultad De Medicina, Universidad De Chile, Santiago, Chile
| | - Marjorie Reyes-Farias
- Departamento De Nutricion, Facultad De Medicina, Universidad De Chile, Santiago, Chile
| | - Diego F Garcia-Diaz
- Departamento De Nutricion, Facultad De Medicina, Universidad De Chile, Santiago, Chile
| | - Paz Robert
- Departamento De Ciencia De Los Alimentos Y Tecnologia Quimica, Facultad De Ciencias Quimicas Y Farmaceuticas, Universidad De Chile, Santiago, Chile
| | - Cristian Encina
- Departamento De Ciencia De Los Alimentos Y Tecnologia Quimica, Facultad De Ciencias Quimicas Y Farmaceuticas, Universidad De Chile, Santiago, Chile
| | - Jessica Soto-Covasich
- Programa de Doctorado en Biotecnologia, Pontificia Universidad Catolica de Valparaiso-Universidad Tecnica Federico Santa Maria
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Bhuyan DJ, Alsherbiny MA, Perera S, Low M, Basu A, Devi OA, Barooah MS, Li CG, Papoutsis K. The Odyssey of Bioactive Compounds in Avocado ( Persea americana) and Their Health Benefits. Antioxidants (Basel) 2019; 8:antiox8100426. [PMID: 31554332 PMCID: PMC6826385 DOI: 10.3390/antiox8100426] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 09/22/2019] [Accepted: 09/23/2019] [Indexed: 12/12/2022] Open
Abstract
Persea americana, commonly known as avocado, has recently gained substantial popularity and is often marketed as a “superfood” because of its unique nutritional composition, antioxidant content, and biochemical profile. However, the term “superfood” can be vague and misleading, as it is often associated with unrealistic health claims. This review draws a comprehensive summary and assessment of research performed in the last few decades to understand the nutritional and therapeutic properties of avocado and its bioactive compounds. In particular, studies reporting the major metabolites of avocado, their antioxidant as well as bioavailability and pharmacokinetic properties, are summarized and assessed. Furthermore, the potential of avocado in novel drug discovery for the prevention and treatment of cancer, microbial, inflammatory, diabetes, and cardiovascular diseases is highlighted. This review also proposes several interesting future directions for avocado research.
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Affiliation(s)
- Deep Jyoti Bhuyan
- NICM Health Research Institute, Western Sydney University, Penrith, NSW 2751, Australia.
| | - Muhammad A Alsherbiny
- NICM Health Research Institute, Western Sydney University, Penrith, NSW 2751, Australia.
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt.
| | - Saumya Perera
- NICM Health Research Institute, Western Sydney University, Penrith, NSW 2751, Australia.
| | - Mitchell Low
- NICM Health Research Institute, Western Sydney University, Penrith, NSW 2751, Australia.
| | - Amrita Basu
- Research Centre for Toxic Compounds in the Environment, Masaryk University, Brno 62500, Czech.
| | - Okram Abemsana Devi
- Department of Food Science and Nutrition, College of Community Science, Assam Agricultural University, Assam 785013, India.
| | - Mridula Saikia Barooah
- Department of Food Science and Nutrition, College of Community Science, Assam Agricultural University, Assam 785013, India.
| | - Chun Guang Li
- NICM Health Research Institute, Western Sydney University, Penrith, NSW 2751, Australia.
| | - Konstantinos Papoutsis
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland.
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Sharma A, Flores-Vallejo RDC, Cardoso-Taketa A, Villarreal ML. Antibacterial activities of medicinal plants used in Mexican traditional medicine. JOURNAL OF ETHNOPHARMACOLOGY 2017; 208:264-329. [PMID: 27155134 DOI: 10.1016/j.jep.2016.04.045] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2015] [Revised: 04/24/2016] [Accepted: 04/25/2016] [Indexed: 05/17/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE We provide an extensive summary of the in vitro antibacterial properties of medicinal plants popularly used in Mexico to treat infections, and we discuss the ethnomedical information that has been published for these species. MATERIALS AND METHODS We carried out a bibliographic investigation by analyzing local and international peer-reviewed papers selected by consulting internationally accepted scientific databases from 1995 to 2014. We provide specific information about the evaluated plant parts, the type of extracts, the tested bacterial strains, and the inhibitory concentrations for each one of the species. We recorded the ethnomedical information for the active species, as well as their popular names and local distribution. Information about the plant compounds that has been identified is included in the manuscript. This review also incorporates an extensive summary of the available toxicological reports on the recorded species, as well as the worldwide registries of plant patents used for treating bacterial infections. In addition, we provide a list with the top plant species with antibacterial activities in this review RESULTS: We documented the in vitro antibacterial activities of 343 plant species pertaining to 92 botanical families against 72 bacterial species, focusing particularly on Staphylococcus aureus, Mycobacterium tuberculosis, Escherichia coli and Pseudomonas aeruginosa. The plant families Asteraceae, Fabaceae, Lamiaceae and Euphorbiaceae included the largest number of active species. Information related to popular uses reveals that the majority of the plants, in addition to treating infections, are used to treat other conditions. The distribution of Mexican plants extended from those that were reported to grow in just one state to those that grow in all 32 Mexican states. From 75 plant species, 225 compounds were identified. Out of the total plant species, only 140 (40.57%) had at least one report about their toxic effects. From 1994 to July 2014 a total of 11,836 worldwide antibacterial patents prepared from different sources were recorded; only 36 antibacterial patents from plants were registered over the same time period. We offered some insights on the most important findings regarding the antibacterial effects, current state of the art, and research perspectives of top plant species with antibacterial activities in vitro. CONCLUSIONS Studies of the antibacterial in vitro activity of medicinal plants popularly used in Mexico to treat infections indicate that both the selection of plant material and the investigation methodologies vary. Standardized experimental procedures as well as in vivo pharmacokinetic studies to document the effectiveness of plant extracts and compounds are necessary. This review presents extensive information about the medicinal plants possessing antibacterial activity that has been scientifically studied and are popularly used in Mexico. We anticipate that this review will be of use for future studies because it constitutes a valuable information tool for selecting the most significant plants and their potential antibacterial properties.
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Affiliation(s)
- Ashutosh Sharma
- Escuela de Ingeniería en Alimentos, Biotecnología y Agronomía (ESIABA), Tecnológico de Monterrey, Campus Querétaro, México
| | - Rosario Del Carmen Flores-Vallejo
- Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Col. Chamilpa, Cuernavaca Morelos 62209, México
| | - Alexandre Cardoso-Taketa
- Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Col. Chamilpa, Cuernavaca Morelos 62209, México
| | - María Luisa Villarreal
- Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Col. Chamilpa, Cuernavaca Morelos 62209, México
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Nicolella HD, Neto FR, Corrêa MB, Lopes DH, Rondon EN, Dos Santos LFR, de Oliveira PF, Damasceno JL, Acésio NO, Turatti ICC, Tozatti MG, Cunha WR, Furtado RA, Tavares DC. Toxicogenetic study of Persea americana fruit pulp oil and its effect on genomic instability. Food Chem Toxicol 2017; 101:114-120. [PMID: 28088491 DOI: 10.1016/j.fct.2017.01.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 12/13/2016] [Accepted: 01/11/2017] [Indexed: 10/20/2022]
Abstract
Persea americana Mill., commonly known as avocado, is a tree native to Central America that is widely used as a food source and for the treatment of diseases. This plant has various biological properties such as analgesic, anti-inflammatory and total cholesterol-lowering activity. In view of its pharmacological potential, we conducted a toxicogenetic study of the fruit pulp oil of P. americana (PAO) and investigated its influence on genotoxicity induced by methyl methanesulfonate (MMS) and doxorubicin. V79 cells and Swiss mice were used for the assays. The results showed no genotoxic effects of PAO in the in vitro or in vivo test systems. However, the highest PAO dose tested led to an increase in the levels of aspartate aminotransferase, indicating hepatic/tissue damage. This effect may be related to high concentrations of palmitic acid, the main component of PAO. Furthermore, PAO was effective in reducing the chromosome damage induced by MMS and doxorubicin. These results contribute to the safety assessment of PAO as a medicinal plant for human use.
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Affiliation(s)
- Heloiza Diniz Nicolella
- Universidade de Franca, Avenida Dr. Armando Salles de Oliveira, 201 - Parque Universitário, 14404-600, Franca, São Paulo, Brazil
| | - Francisco Rinaldi Neto
- Universidade de Franca, Avenida Dr. Armando Salles de Oliveira, 201 - Parque Universitário, 14404-600, Franca, São Paulo, Brazil
| | - Mariana Beltrame Corrêa
- Universidade de Franca, Avenida Dr. Armando Salles de Oliveira, 201 - Parque Universitário, 14404-600, Franca, São Paulo, Brazil
| | - Danillo Henrique Lopes
- Universidade de Franca, Avenida Dr. Armando Salles de Oliveira, 201 - Parque Universitário, 14404-600, Franca, São Paulo, Brazil
| | - Edilaura Nunes Rondon
- Universidade de Franca, Avenida Dr. Armando Salles de Oliveira, 201 - Parque Universitário, 14404-600, Franca, São Paulo, Brazil
| | - Luiz Felipe Ribeiro Dos Santos
- Universidade de Franca, Avenida Dr. Armando Salles de Oliveira, 201 - Parque Universitário, 14404-600, Franca, São Paulo, Brazil
| | - Pollyanna Francielli de Oliveira
- Universidade de Franca, Avenida Dr. Armando Salles de Oliveira, 201 - Parque Universitário, 14404-600, Franca, São Paulo, Brazil
| | - Jaqueline Lopes Damasceno
- Universidade de Franca, Avenida Dr. Armando Salles de Oliveira, 201 - Parque Universitário, 14404-600, Franca, São Paulo, Brazil
| | - Nathália Oliveira Acésio
- Universidade de Franca, Avenida Dr. Armando Salles de Oliveira, 201 - Parque Universitário, 14404-600, Franca, São Paulo, Brazil
| | - Izabel Cristina Casanova Turatti
- Departamento de Física e Química da Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Avenida do Café, s/n - Vila Monte Alegre, 14040-020, Ribeirão Preto, São Paulo, Brazil
| | - Marcos Gomide Tozatti
- Universidade de Franca, Avenida Dr. Armando Salles de Oliveira, 201 - Parque Universitário, 14404-600, Franca, São Paulo, Brazil
| | - Wilson Roberto Cunha
- Universidade de Franca, Avenida Dr. Armando Salles de Oliveira, 201 - Parque Universitário, 14404-600, Franca, São Paulo, Brazil
| | - Ricardo Andrade Furtado
- Universidade de Franca, Avenida Dr. Armando Salles de Oliveira, 201 - Parque Universitário, 14404-600, Franca, São Paulo, Brazil
| | - Denise Crispim Tavares
- Universidade de Franca, Avenida Dr. Armando Salles de Oliveira, 201 - Parque Universitário, 14404-600, Franca, São Paulo, Brazil.
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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: 69] [Impact Index Per Article: 8.6] [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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Acute toxicity and genotoxic activity of avocado seed extract (Persea americana Mill., c.v. Hass). ScientificWorldJournal 2013; 2013:245828. [PMID: 24298206 PMCID: PMC3835709 DOI: 10.1155/2013/245828] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Accepted: 09/23/2013] [Indexed: 11/17/2022] Open
Abstract
The use of vegetal extracts requires toxicological and genotoxic evaluations to establish and verify safety before being added to human cosmetic, pharmaceutical medicine, or alimentary products. Persea americana seeds have been used in traditional medicine as treatment for several diseases. In this work, the ethanolic seed extract of Persea americana was evaluated with respect to its genotoxic potential through micronucleus assay in rodents. The frequency of micronuclei in groups of animals treated with avocado seed extract showed no differences compared to the negative control (vehicle); therefore, it is considered that the avocado seed extract showed no genotoxic activity in the micronucleus test.
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