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Kciuk M, Garg N, Dhankhar S, Saini M, Mujwar S, Devi S, Chauhan S, Singh TG, Singh R, Marciniak B, Gielecińska A, Kontek R. Exploring the Comprehensive Neuroprotective and Anticancer Potential of Afzelin. Pharmaceuticals (Basel) 2024; 17:701. [PMID: 38931368 PMCID: PMC11206995 DOI: 10.3390/ph17060701] [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: 04/30/2024] [Revised: 05/18/2024] [Accepted: 05/23/2024] [Indexed: 06/28/2024] Open
Abstract
Neurodegenerative diseases (Alzheimer's disease, Parkinson's disease, Huntington's disease, and others) and cancer, seemingly disparate in their etiology and manifestation, exhibit intriguing associations in certain cellular and molecular processes. Both cancer and neurodegenerative diseases involve the deregulation of cellular processes such as apoptosis, proliferation, and DNA repair and pose a significant global health challenge. Afzelin (kaempferol 3-O-rhamnoside) is a flavonoid compound abundant in various plant sources. Afzelin exhibits a diverse range of biological activities, offering promising prospects for the treatment of diseases hallmarked by oxidative stress and deregulation of cell death pathways. Its protective potential against oxidative stress is also promising for alleviating the side effects of chemotherapy. This review explores the potential therapeutic implications of afzelin, including its capacity to mitigate oxidative stress, modulate inflammation, and promote cellular regeneration in neurodegenerative and cancer diseases.
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Affiliation(s)
- Mateusz Kciuk
- Department of Molecular Biotechnology and Genetics, Faculty of Biology and Environmental Protection, University of Lodz, 12/16 Banacha St., 90-237 Lodz, Poland; (M.K.); (B.M.); (A.G.); (R.K.)
| | - Nitika Garg
- Chitkara College of Pharmacy, Chitkara University, Rajpura 140401, Punjab, India; (N.G.); (S.D.); (S.D.); (T.G.S.)
| | - Sanchit Dhankhar
- Chitkara College of Pharmacy, Chitkara University, Rajpura 140401, Punjab, India; (N.G.); (S.D.); (S.D.); (T.G.S.)
| | - Monika Saini
- M. M. College of Pharmacy, Maharishi Markandeshwar (Deemed to be) University, Mullana, Ambala 133207, Haryana, India;
- Swami Vivekanand College of Pharmacy, Ramnagar, Banur 140601, Punjab, India
| | - Somdutt Mujwar
- Chitkara College of Pharmacy, Chitkara University, Rajpura 140401, Punjab, India; (N.G.); (S.D.); (S.D.); (T.G.S.)
| | - Sushma Devi
- Chitkara College of Pharmacy, Chitkara University, Rajpura 140401, Punjab, India; (N.G.); (S.D.); (S.D.); (T.G.S.)
| | - Samrat Chauhan
- Chitkara College of Pharmacy, Chitkara University, Rajpura 140401, Punjab, India; (N.G.); (S.D.); (S.D.); (T.G.S.)
| | - Thakur Gurjeet Singh
- Chitkara College of Pharmacy, Chitkara University, Rajpura 140401, Punjab, India; (N.G.); (S.D.); (S.D.); (T.G.S.)
| | - Randhir Singh
- Department of Pharmacology, Central University of Punjab, Bathinda 151401, Punjab, India;
| | - Beata Marciniak
- Department of Molecular Biotechnology and Genetics, Faculty of Biology and Environmental Protection, University of Lodz, 12/16 Banacha St., 90-237 Lodz, Poland; (M.K.); (B.M.); (A.G.); (R.K.)
| | - Adrianna Gielecińska
- Department of Molecular Biotechnology and Genetics, Faculty of Biology and Environmental Protection, University of Lodz, 12/16 Banacha St., 90-237 Lodz, Poland; (M.K.); (B.M.); (A.G.); (R.K.)
- Doctoral School of Exact and Natural Sciences, University of Lodz, 90-237 Lodz, Poland
| | - Renata Kontek
- Department of Molecular Biotechnology and Genetics, Faculty of Biology and Environmental Protection, University of Lodz, 12/16 Banacha St., 90-237 Lodz, Poland; (M.K.); (B.M.); (A.G.); (R.K.)
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Yadav V, Fuentes JL, Krishnan A, Singh N, Vohora D. Guidance for the use and interpretation of assays for monitoring anti-genotoxicity. Life Sci 2024; 337:122341. [PMID: 38101613 DOI: 10.1016/j.lfs.2023.122341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 12/17/2023]
Abstract
Since DNA damage can occur spontaneously or be produced by the environmental genotoxins in living cells, it is important to investigate compounds that can reverse or protect DNA damage. An appropriate methodology is essential for the responsive identification of protection offered against DNA damage. This review includes information on the current state of knowledge on prokaryotic cell-based assays (SOS chromotest, umu test, vitotox assay) and cytogenetic techniques (micronucleus assay, chromosome aberration test and sister chromatid exchange assay) with an emphasis on the possibility to explore genoprotective compounds. Throughout the last decade, studies have extrapolated the scientific methodologies utilized for genotoxicity to assess genoprotective compounds. Therefore, shortcomings of genotoxicity studies are also mirrored in antigenotoxicity studies. While regulatory authorities around the world (OECD, US-EPA and ICH) continue to update diverse genotoxic assay strategies, there are still no clear guidelines/approaches for efficient experimental design to screen genoprotective compounds. As a consequence, non-synergetic and inconsistent implementation of the test method by the researchers to execute such simulations has been adopted, which inevitably results in unreliable findings. The review has made the first attempt to collect various facets of experimentally verified approaches for evaluating genoprotective compounds, as well as to acknowledge potential significance and constraints, and further focus on the assessment of end points which are required to validate such action. Henceforth, the review makes an incredible commitment by permitting readers to equate several components of their test arrangement with the provided simplified information, allowing the selection of convenient technique for the predefined compound from a central repository.
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Affiliation(s)
- Vaishali Yadav
- Neurobehavioral Pharmacology Laboratory, Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Jorge L Fuentes
- School of Biology, Science Faculty, Industrial University of Santander, Bucaramanga 680002, Santander, Colombia
| | - Anuja Krishnan
- Department of Molecular Medicine, School of Interdisciplinary Science and Technology, Jamia Hamdard, New Delhi 110062, India
| | - Neenu Singh
- Leicester School of Allied Health Sciences, Faculty of Health & Life Sciences, De Montfort University, The Gateway, Leicester LE1 9BH, UK
| | - Divya Vohora
- Neurobehavioral Pharmacology Laboratory, Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India.
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Genesi BP, de Melo Barbosa R, Severino P, Rodas ACD, Yoshida CMP, Mathor MB, Lopes PS, Viseras C, Souto EB, Ferreira da Silva C. Aloe vera and copaiba oleoresin-loaded chitosan films for wound dressings: microbial permeation, cytotoxicity, and in vivo proof of concept. Int J Pharm 2023; 634:122648. [PMID: 36709832 DOI: 10.1016/j.ijpharm.2023.122648] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/19/2023] [Accepted: 01/22/2023] [Indexed: 01/27/2023]
Abstract
Chitosan films are commonly used for wound dressing, provided that this polymer has healing, mucoadhesiveness and antimicrobial properties. These properties can be further reinforced by the combination of chitosan with polysaccharides and glycoproteins present in aloe vera, together with copaiba oleoresin's pharmacological activity attributed to sesquiterpenes. In this work, we developed chitosan films containing either aloe vera, copaiba oil or both, by casting technique, and evaluated their microbial permeation, antimicrobial activity, cytotoxicity, and in vivo healing potential in female adult rats. None of the developed chitosan films promoted microbial permeation, while the cytotoxicity in Balb/c 3 T3 clone A31 cell line revealed no toxicity of films produced with 2 % of chitosan and up to 1 % of aloe vera and copaiba oleoresin. Films obtained with either 0.5 % chitosan or 0.5 % copaiba oleoresin induced cell proliferation which anticipate their potential for closure of wound and for the healing process. The in vivo results confirmed that tested films (0.5 % copaiba-loaded chitosan film and 0.5 % aloe vera-loaded chitosan film) were superior to a commercial dressing film. For all tested groups, a fully formed epithelium was seen, while neoformation of vessels seemed to be greater in formulations-treated groups than those treated with the control. Our work confirms the added value of combining chitosan with aloe vera and copaiba oil in the healing process of wounds.
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Affiliation(s)
- Bianca P Genesi
- Institute of Chemistry, Environmental and Pharmaceutics Sciences, Federal University of São Paulo, Diadema, São Paulo, Brazil
| | - Raquel de Melo Barbosa
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Granada, Granada, Spain; Department of Pharmacy, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Patricia Severino
- Instituto de Pesquisa e Tecnologia, Universidade Tiradentes, Aracaju, Sergipe, Brazil
| | | | - Cristiana M P Yoshida
- Institute of Chemistry, Environmental and Pharmaceutics Sciences, Federal University of São Paulo, Diadema, São Paulo, Brazil
| | - Mônica B Mathor
- Nuclear and Energy Research Institute (IPEN/CNEN), São Paulo, Brazil
| | - Patrícia S Lopes
- Institute of Chemistry, Environmental and Pharmaceutics Sciences, Federal University of São Paulo, Diadema, São Paulo, Brazil
| | - César Viseras
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Granada, Granada, Spain
| | - Eliana B Souto
- UCIBIO - Applied Molecular Biosciences Unit, MEDTECH, Department of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal; Associate Laboratory i4HB - Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Porto, Portugal.
| | - Classius Ferreira da Silva
- Institute of Chemistry, Environmental and Pharmaceutics Sciences, Federal University of São Paulo, Diadema, São Paulo, Brazil.
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Santos MDO, Camilo CJ, Macedo JGF, Lacerda MNSD, Lopes CMU, Rodrigues AYF, Costa JGMD, Souza MMDA. Copaifera langsdorffii Desf.: A chemical and pharmacological review. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2021.102262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Ozelin SD, Senedese JM, Alves JM, Munari CC, Costa JDCD, Resende FA, Campos DL, Lima IMDS, Andrade AF, Varanda EA, Bastos JK, Tavares DC. Preventive activity of Copaifera langsdorffii Desf. leaves extract and its major compounds, afzelin and quercitrin, on DNA damage in in vitro and in vivo models. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2021; 84:569-581. [PMID: 33730993 DOI: 10.1080/15287394.2021.1898505] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Copaifera langsdorffii Desf. is a plant found in South America, especially in Brazil. Oleoresin and the leaves of this plant is used as a popular medicinal agent. However, few studies on the chemical composition of aerial parts and related biological activities are known. This study aimed to examine the cytotoxic, genotoxic, and antigenotoxic potential of C. langsdorffii aerial parts hydroalcoholic extract (CLE) and two of its major compounds afzelin and quercitrin. The cytotoxic and antigenotoxic potential of CLE was determined as follows: 1) against genotoxicity induced by doxorubicin (DXR) or methyl methanesulfonate (MMS) in V79 cells; 2) by direct and indirect-acting mutagens in Salmonella typhimurium strains; and 3) by MMS in male Swiss mice. The protective effects of afzelin and quercitrin against DXR or MMS were also evaluated in V79 and HepG2 cells. CLE was cytotoxic as evidenced by clonogenic efficiency assay. Further, CLE did not induce a significant change in frequencies of chromosomal aberrations and micronuclei; as well as number of revertants in the Ames test demonstrating absence of genotoxicity. In contrast, CLE was found to be antigenotoxic in mammalian cells. The results also showed that CLE exerted inhibitory effect against indirect-acting mutagens in the Ames test. Afzelin and quercitrin did not reduce genotoxicity induced by DXR or MMS in V79 cells. However, treatments using afzelin and quercitrin decreased MMS-induced genotoxicity in HepG2 cells. The antigenotoxic effect of CLE observed in this study may be partially attributed to the antioxidant activity of the combination of major components afzelin and quercitrin.
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Affiliation(s)
- Saulo Duarte Ozelin
- Laboratório De Mutagênese, Universidade De Franca, Franca, São Paulo, Brazil
| | | | | | | | | | - Flávia Aparecida Resende
- Faculdade De Ciências Farmacêuticas De Araraquara, Universidade Estadual Paulista, Araraquara, São Paulo, Brazil
| | - Débora Leite Campos
- Faculdade De Ciências Farmacêuticas De Araraquara, Universidade Estadual Paulista, Araraquara, São Paulo, Brazil
| | | | | | - Eliana Aparecida Varanda
- Faculdade De Ciências Farmacêuticas De Araraquara, Universidade Estadual Paulista, Araraquara, São Paulo, Brazil
| | - Jairo Kenupp Bastos
- Facudade De Ciências Farmacêuticas De Ribeirão Preto, Universidade De São Paulo, São Paulo, Brazil
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Boriollo MFG, Alves VE, Silva TA, Silva JJ, Barros GBS, Dias CTS, Höfling JF, Oliveira NMS. Decrease of the DXR-induced genotoxicity and nongenotoxic effects of Theobroma cacao revealed by micronucleus assay. BRAZ J BIOL 2020; 81:268-277. [PMID: 32696851 DOI: 10.1590/1519-6984.223687] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 11/04/2019] [Indexed: 11/22/2022] Open
Abstract
This study evaluated the genotoxicity of lyophilized glycolic extract of Theobroma cacao Linné seeds (TCL), using the micronucleus assay in bone marrow of mice. The interaction between TCL and doxorubicin (DXR) was also analyzed. Experimental groups were evaluated 24-48 h after treatment with N-Nitroso-N-ethylurea (NEU: 50 mg/kg), DXR (5 mg/kg), NaCl (145 mM), TCL (0.5-2 g/kg), and TCL (2 g/kg) in combination with DXR (antigenotoxic assays). Analysis of micronucleated polychromatic erythrocytes (MNPCEs) showed no significant differences between all the treatment doses of TCL and NaCl control. Mice experimentally treated with DXR and NEU significantly induced MNPCEs. However, a significant reduction of MNPCEs was also observed when TCL was administered in combination with the chemotherapeutic agent DXR. The analysis of the PCE/NCE ratio revealed no significant differences between the NaCl control, all doses of TCL, and DXR. However, there were significant differences in the PCE/NCE ratio between positive NEU control and all other treatments. The PCE/NCE ratio observed after treatment with TCL and DXR showed significant differences and intermediate values to controls (NaCl and NEU). This study suggests absence of genotoxicity and cytotoxicity of TCL, regardless of dose, sex, and time. TCL reduced genotoxic effects induced by DXR, suggesting potential antigenotoxic effects.
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Affiliation(s)
- M F G Boriollo
- Laboratório de Genética Molecular, Departamento de Diagnóstico Oral, Faculdade de Odontologia de Piracicaba - FOP, Universidade Estadual de Campinas - UNICAMP, Av. Limeira, 901, Bairro Areião, CEP 13414-903, Piracicaba, SP, Brasil
| | - V E Alves
- Laboratório de Farmacogenética e Biologia Molecular, Faculdade de Ciências Médicas, Universidade José do Rosário Vellano - UNIFENAS, Rodovia MG 179, Km 0, Campus Universitário, CEP 37132-440, Alfenas, MG, Brasil
| | - T A Silva
- Laboratório de Farmacogenética e Biologia Molecular, Faculdade de Ciências Médicas, Universidade José do Rosário Vellano - UNIFENAS, Rodovia MG 179, Km 0, Campus Universitário, CEP 37132-440, Alfenas, MG, Brasil
| | - J J Silva
- Laboratório de Genética Molecular, Departamento de Diagnóstico Oral, Faculdade de Odontologia de Piracicaba - FOP, Universidade Estadual de Campinas - UNICAMP, Av. Limeira, 901, Bairro Areião, CEP 13414-903, Piracicaba, SP, Brasil
| | - G B S Barros
- Laboratório de Farmacogenética e Biologia Molecular, Faculdade de Ciências Médicas, Universidade José do Rosário Vellano - UNIFENAS, Rodovia MG 179, Km 0, Campus Universitário, CEP 37132-440, Alfenas, MG, Brasil
| | - C T S Dias
- Departamento de Ciências Exatas, Escola de Agricultura "Luiz de Queiroz" - ESALQ, Universidade de são Paulo - USP, Av. Pádua Dias, 11, CEP 13418-900, Piracicaba, SP, Brasil
| | - J F Höfling
- Laboratório de Genética Molecular, Departamento de Diagnóstico Oral, Faculdade de Odontologia de Piracicaba - FOP, Universidade Estadual de Campinas - UNICAMP, Av. Limeira, 901, Bairro Areião, CEP 13414-903, Piracicaba, SP, Brasil
| | - N M S Oliveira
- Laboratório de Farmacogenética e Biologia Molecular, Faculdade de Ciências Médicas, Universidade José do Rosário Vellano - UNIFENAS, Rodovia MG 179, Km 0, Campus Universitário, CEP 37132-440, Alfenas, MG, Brasil
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7
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Boriollo MFG, Marques MB, da Silva TA, da Silva JJ, Dias RA, Silva Filho THN, Melo ILR, dos Santos Dias CT, Bernardo WLDC, de Mello Silva Oliveira N, Peters VM, Höfling JF, Spolidorio DMP. Antimicrobial potential, phytochemical profile, cytotoxic and genotoxic screening of Sedum praealtum A. DC. (balsam). BMC Complement Med Ther 2020; 20:133. [PMID: 32349729 PMCID: PMC7191818 DOI: 10.1186/s12906-020-02915-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 04/07/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Sedum praealtum has been used for a long time in traditional medicine as an analgesic and anti-inflammatory agent. Its beneficial effects have been known since ancient times, when Latinos used it to treat sore and swollen eyes. This research evaluated the antimicrobial potential, the cytotoxic and genotoxic effects, and some chromatographic profiles of the hydroethanolic extract of leaves, stems and roots of S. praealtum. METHODS The antimicrobial activities were carried out by broth microdilution and agar diffusion. In vitro cytotoxicity was evaluated by cell cultures of Aedes albopictus and the selectivity index (SI) was estimated: SI=CI50/MIC. Genotoxic and systemic toxic effects of S. praealtum leaves were analyzed by micronucleus assay in mice bone marrow. Chromatographic profiles and mass spectra were investigated by GC-MS. RESULTS Gram-positive (B. subtilis, B. cereus, M. luteus, E. faecalis and S. aureus) and gram-negative (E. coli, E. aerogenes, S. marcescens, P. aeruginosa, P. mirabilis and S. typhimurium) bacteria exhibited MICs ranging from 12.5-50 and 0-50 mg/ml, respectively. Sedum praealtum showed no efficacy against M. tuberculosis and M. bovis. Cytotoxicity (CI50) of S. praealtum was 4.22 and 5.96 mg/ml for leaves and stems, respectively, while its roots showed no cytotoxicity. Micronucleated polychromatic erythrocytes (MNPCEs) analyzes showed no differences between treatment doses (0.5-2 g/kg) and negative control (NaCl), but the PCE/NCE ratio (polychromatic erythrocyte/normochromatic erythrocyte) showed significant differences. Phytochemical screening identified thirteen compounds in the leaves, stems and roots of S. praealtum potentially associated with their biological activities. CONCLUSIONS This research comprises a first scientific study on genotoxicity, cytotoxicity and antimicrobial effects of S. praealtum (Balsam), and it provides an initial theoretical foundation for its comprehensive use. Results showed antibacterial action of S. praealtum against gram-positive bacteria and some gram-negative species (depending on the plant anatomical part), but ineffective antimycobacterial action. However, S. praealtum leaves and stems display potential cytotoxicity, contributing to the SI < 1 values. In addition, S. praealtum leaves exhibit no clastogenic and/or aneugenic effects, but it has systemic toxicity dose-independent.
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Affiliation(s)
- Marcelo Fabiano Gomes Boriollo
- Laboratory of Microbiology and Immunology, Department of Oral Diagnosis, Dental School of Piracicaba, State University of Campinas (FOP/UNICAMP), Piracicaba, SP 13414-903 Brazil
| | - Milene Bueno Marques
- Center for Research and Postgraduate Studies in Animal Science, Pathology and Animal Pharmacology Area, University of Alfenas (UNIFENAS), Alfenas, MG 37132-440 Brazil
| | - Thaísla Andrielle da Silva
- Laboratory of Microbiology and Immunology, Department of Oral Diagnosis, Dental School of Piracicaba, State University of Campinas (FOP/UNICAMP), Piracicaba, SP 13414-903 Brazil
| | - Jeferson Júnior da Silva
- Laboratory of Microbiology and Immunology, Department of Oral Diagnosis, Dental School of Piracicaba, State University of Campinas (FOP/UNICAMP), Piracicaba, SP 13414-903 Brazil
| | - Reigson Alves Dias
- Laboratory of Pharmacogenetics and Molecular Biology, Faculty of Medical Sciences, University of Alfenas (UNIFENAS), Alfenas, MG 37132-440 Brazil
| | - Thyago Henrique Neves Silva Filho
- Laboratory of Pharmacogenetics and Molecular Biology, Faculty of Medical Sciences, University of Alfenas (UNIFENAS), Alfenas, MG 37132-440 Brazil
| | - Isadora Letícia Ribeiro Melo
- Laboratory of Pharmacogenetics and Molecular Biology, Faculty of Medical Sciences, University of Alfenas (UNIFENAS), Alfenas, MG 37132-440 Brazil
| | - Carlos Tadeu dos Santos Dias
- Department of Exact Sciences, College of Agriculture, University of São Paulo (ESALQ/USP), Piracicaba, SP 13418-900 Brazil
| | - Wagner Luís de Carvalho Bernardo
- Laboratory of Microbiology and Immunology, Department of Oral Diagnosis, Dental School of Piracicaba, State University of Campinas (FOP/UNICAMP), Piracicaba, SP 13414-903 Brazil
- Laboratory of Oral Microbiology and Immunology, Department of Physiology and Oral Pathology, Araraquara School of Dentistry, São Paulo State University (FOAr/UNESP), Araraquara, SP 14801-903 Brazil
| | - Nelma de Mello Silva Oliveira
- Center for Research and Postgraduate Studies in Animal Science, Pathology and Animal Pharmacology Area, University of Alfenas (UNIFENAS), Alfenas, MG 37132-440 Brazil
| | - Vera Maria Peters
- Reproductive Biology Center, Federal University of Juiz de Fora (UFJF), Juiz de Fora, MG 36036-900 Brazil
| | - José Francisco Höfling
- Laboratory of Microbiology and Immunology, Department of Oral Diagnosis, Dental School of Piracicaba, State University of Campinas (FOP/UNICAMP), Piracicaba, SP 13414-903 Brazil
| | - Denise Madalena Palomari Spolidorio
- Laboratory of Oral Microbiology and Immunology, Department of Physiology and Oral Pathology, Araraquara School of Dentistry, São Paulo State University (FOAr/UNESP), Araraquara, SP 14801-903 Brazil
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Araujo CDS, Brito LD, Tarifa MO, Silva NJFD, Rodrigues KS, Cavalcante DGSM, Gomes AS, Zocoler MA, Yoshihara E, Camparoto ML, Job AE, Kerche LE. Protective effects of bark ethanolic extract from Spondias dulcis Forst F. against DNA damage induced by benzo[a]pyrene and cyclophosphamide. Genet Mol Biol 2019; 42:643-654. [PMID: 31188923 PMCID: PMC6905452 DOI: 10.1590/1678-4685-gmb-2018-0038] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 01/15/2019] [Indexed: 12/27/2022] Open
Abstract
This study evaluated the genotoxicity, mutagenicity, antigenotoxicity, and
antimutagenicity effects on biochemical parameters of oxidative stress of the
Spondias dulcis bark ethanolic extract on mice. The extract
was evaluated in the doses of 500, 1000, and 1500 mg/kg bw via gavage. To
evaluate the protective effects of the extract, benzo[a]pyrene
(B[a]P) and cyclophosphamide (CP) were chosen as DNA damage
inducers. Genotoxicity and antigenotoxicity were evaluated by the comet assay.
Cytotoxicity, mutagenicity, and antimutagenicity were evaluated by the
micronucleus test in bone marrow and peripheral blood. The biochemical
parameters of oxidative stress were evaluated by the quantification of catalase
activity (CAT) and reduced glutathione (GSH) in total blood, liver and kidney,
and malondialdehyde (MDA), in liver and kidney. No genotoxic, cytotoxic, or
mutagenic effect was found on mice exposed to the extract. The extract depleted
the number of damaged nucleoids in total blood and the number of micronucleus
(MN) in both cell types. The extract was able to increase CAT activity and GSH
levels and decrease MDA levels after treatment with B[a]P and CP. The results
indicate that the S. dulcis extract has potential to be used as
preventive compound against DNA damage caused by CP and B[a]P.
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Affiliation(s)
- Caroline de S Araujo
- Faculdade de Artes, Ciências, Letras e Educação, Universidade do Oeste Paulista, Presidente Prudente, SP, Brazil
| | - Lorrane D Brito
- Faculdade de Artes, Ciências, Letras e Educação, Universidade do Oeste Paulista, Presidente Prudente, SP, Brazil
| | - Marina O Tarifa
- Faculdade de Medicina, Universidade do Oeste Paulista, Presidente Prudente, SP, Brazil
| | | | - Karoline S Rodrigues
- Faculdade de Farmácia, Universidade do Oeste Paulista, Presidente Prudente, SP, Brazil
| | - Dalita G S M Cavalcante
- Departmento de Física, Química e Biologia, Universidade Estadual Paulista "Júlio de Mesquita Filho", Presidente Prudente, SP, Brazil
| | - Andressa S Gomes
- Departmento de Física, Química e Biologia, Universidade Estadual Paulista "Júlio de Mesquita Filho", Presidente Prudente, SP, Brazil
| | - Marcos A Zocoler
- Faculdade de Farmácia, Universidade do Oeste Paulista, Presidente Prudente, SP, Brazil
| | - Eidi Yoshihara
- Agência Paulista de Tecnologia dos Agronegócios (APTA), Presidente Prudente, SP, Brazil
| | - Marjori L Camparoto
- Faculdade de Medicina, Universidade do Oeste Paulista, Presidente Prudente, SP, Brazil
| | - Aldo E Job
- Departmento de Física, Química e Biologia, Universidade Estadual Paulista "Júlio de Mesquita Filho", Presidente Prudente, SP, Brazil
| | - Leandra E Kerche
- Faculdade de Artes, Ciências, Letras e Educação, Universidade do Oeste Paulista, Presidente Prudente, SP, Brazil.,Faculdade de Medicina, Universidade do Oeste Paulista, Presidente Prudente, SP, Brazil
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Investigation of Safety Profile of Four Copaifera Species and of Kaurenoic Acid by Salmonella/Microsome Test. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:7631531. [PMID: 30733813 PMCID: PMC6348810 DOI: 10.1155/2019/7631531] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 12/12/2018] [Accepted: 12/31/2018] [Indexed: 12/19/2022]
Abstract
Trees of the Copaifera genus are native to the tropical regions of Latin America and Western Africa. Copaifera sp is widely used as a popular medicine and it has various ethnopharmacological indications, including gonorrhea, bronchitis, asthma, skin ulcers, ulcers, sore throat, uterine infections, general inflammations, cancer, and leishmanioses. Kaurenoic acid is a naturally occurring diterpene found in Copaifera and has been used as an anti-inflammatory, treatment of ulcer, leishmaniasis, and cancer. Bearing in mind the fact that the Ames test is an excellent tool to assess the safety of extracts, oils, and phytochemicals isolated from medicinal plants, from it, we evaluate the mutagenic potential of four species, between oleoresins (C. oblongifolia; C. langsdorffii) and leaves extracts (C. lucens; C. multijuga), of the Copaifera genus and also of kaurenoic acid, which is one of its major compounds. The results showed that the Copaifera spp. and kaurenoic acid did not induce an increase in the number of revertant colonies, without mutagenic effect in experiments, in the all concentrations evaluated by Ames test. The results obtained in our study support the safe use of the Copaifera genus medicinal plants selected and of kaurenoic acid.
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Chitosan/Copaiba oleoresin films for would dressing application. Int J Pharm 2019; 555:146-152. [DOI: 10.1016/j.ijpharm.2018.11.054] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Revised: 11/16/2018] [Accepted: 11/19/2018] [Indexed: 12/23/2022]
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Arruda C, Aldana Mejía JA, Ribeiro VP, Gambeta Borges CH, Martins CHG, Sola Veneziani RC, Ambrósio SR, Bastos JK. Occurrence, chemical composition, biological activities and analytical methods on Copaifera genus-A review. Biomed Pharmacother 2018; 109:1-20. [PMID: 30396065 DOI: 10.1016/j.biopha.2018.10.030] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 10/03/2018] [Accepted: 10/09/2018] [Indexed: 12/25/2022] Open
Abstract
Copaifera is a genus of large trees found in Brazil, mainly in Amazon forest, but also in Atlantic forest and cerrado biomes. It has also been found in other countries in South America. In Africa, it is found mainly in Congo, Cameroon, Guinea and Angola. Its oleoresin has been used in folk medicine in the treatment of numerous healthy disorders, such as urinary, respiratory, skin and inflammatory diseases, for which there are several studies corroborating its ethnopharmacological uses. It is also extensively employed in the pharmaceutical and cosmetic industries in the development of ointments, pills, soaps, perfumes, among others. Copaifera oleoresin contains mainly diterpenes, such as: kaurenoic acid, kaurenol, copalic acid, agathic acid, hardwiickic acid, polyalthic acid, and sesquiterpenes, comprising β-caryophyllene, caryophyllene oxide, α-copaene, α-humulene, γ-muurolene and β-bisabolol, among other compounds. On the other hand, Copaifera leaves contain mainly phenolic compounds, such as flavonoids and methylated galloylquinic acid derivatives. Therefore, considering the economic importance of Copaifera oleoresin, its ethnopharmacological uses, the need to develop new pharmaceuticals for the treatment of many diseases, as well as the pharmacological potential of the compounds found in Copaifera spp., it was undertaken a review covering mostly the last two decades on the distribution, chemistry, pharmacology, quality control and safety of Copaifera species.
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Affiliation(s)
- Caroline Arruda
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Av. Café s/n, Ribeirão Preto, SP, 14040-903, Brazil
| | - Jennyfer Andrea Aldana Mejía
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Av. Café s/n, Ribeirão Preto, SP, 14040-903, Brazil
| | - Victor Pena Ribeiro
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Av. Café s/n, Ribeirão Preto, SP, 14040-903, Brazil
| | | | | | | | | | - Jairo Kenupp Bastos
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Av. Café s/n, Ribeirão Preto, SP, 14040-903, Brazil.
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Fernández YA, Damasceno JL, Abrão F, Silva TDS, Cândido ADLP, Fregonezi NF, Resende FA, Ramos SB, Ambrosio SR, Veneziani RCS, Bastos JK, Martins CHG. Antibacterial, Preservative, and Mutagenic Potential of Copaifera spp. Oleoresins Against Causative Agents of Foodborne Diseases. Foodborne Pathog Dis 2018; 15:790-797. [PMID: 30230926 DOI: 10.1089/fpd.2018.2478] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Foodborne diseases (FBDs) are a serious public health concern worldwide. In this scenario, preservatives based on natural products, especially plants, have attracted researchers' attention because they offer potential antimicrobial action as well as reduced health impact. The genus Copaifera spp., which is native of tropical South America and West Africa, contains several species for which pharmacological activities, including antibacterial effects, have been described. On the basis of minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC), antibiofilm activity (inhibition and eradication), preservative capacity, and Ames test, we evaluated the antibacterial, preservative, and mutagenic potential of Copaifera spp. oleoresins against the causative agents of FBDs. The Copaifera duckei, Copaifera reticulata, Copaifera paupera, and Copaifera pubiflora oleoresins displayed promising MIC/MBC values-from 12.5 to 100 μg/mL-against Staphylococcus aureus (American Type Culture Collection [ATCC] 29213), Listeria monocytogenes (ATCC 15313), and Bacillus cereus (ATCC 14579). C. duckei, C. reticulata, C. paupera, and C. pubiflora oleoresin concentrations ranging from 25 to 200 μg/mL and from 100 to 400 μg/mL inhibited biofilm formation and eradicated biofilms, respectively. The oleoresins did not exert mutagenic effects and had superior food preservative action to sodium benzoate (positive control). In conclusion, Copaifera oleoresins exhibit potential antibacterial activity and are not mutagenic, which makes them a promising source to develop novel natural food preservatives to inhibit foodborne pathogens.
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Affiliation(s)
- Yadira Arnet Fernández
- 1 Laboratory of Research in Applied Microbiology, University of Franca , São Paulo, Brazil
| | | | - Fariza Abrão
- 1 Laboratory of Research in Applied Microbiology, University of Franca , São Paulo, Brazil
| | - Thayná de Souza Silva
- 1 Laboratory of Research in Applied Microbiology, University of Franca , São Paulo, Brazil
| | | | | | - Flavia Aparecida Resende
- 2 Medical Chemistry and Regenerative Medicine Group, University of Araraquara , São Paulo, Brazil
| | | | | | | | - Jairo Knupp Bastos
- 3 Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences, University of São Paulo , São Paulo, Brazil
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Furtado RA, de Oliveira PF, Senedese JM, Ozelin SD, de Souza LDR, Leandro LF, de Oliveira WL, da Silva JJM, Oliveira LC, Rogez H, Ambrósio SR, Veneziani RCS, Bastos JK, Tavares DC. Assessment of genotoxic activity of oleoresins and leaves extracts of six Copaifera species for prediction of potential human risks. JOURNAL OF ETHNOPHARMACOLOGY 2018; 221:119-125. [PMID: 29625274 DOI: 10.1016/j.jep.2018.04.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 03/26/2018] [Accepted: 04/01/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Copaifera species are used in folk medicine for a wide variety of pharmacological properties. This paper reports the cytotoxic and genotoxic analyses of oleoresins and leaves extracts of Copaifera species: C. duckei, C. multijuga, C. paupera, C. pubiflora, C. reticulata and C. trapezifolia. MATERIALS AND METHODS In vitro assays were performed using Chinese hamster lung fibroblasts (V79 cells). The clonogenic efficiency and cytokinesis-block micronucleus assays were employed for the cytotoxicity and genotoxicity assessment, respectively. The mouse bone marrow micronucleus test was used for in vivo studies. RESULTS The cytotoxicity results using the clonogenic efficiency assay showed IC50 values ranging from 9.8 to 99.2 µg/mL for oleoresins and 66.4-721.5 for leaves extracts. However, no cytotoxic effect was observed in the in vivo studies. Additionally, the treatments with oleoresins and leaves extracts did not significantly increase the frequency of micronuclei in both in vitro and in vivo mammalian cells. The UPLC-MS/MS and CG/MS analyses of Copaifera oleoresins allowed the identification of 10 acid diterpenes and 11 major volatile sesquiterpenes. Leaves are rich in phenolic compounds including two flavonoid heterosides and 16 galloylquinic acid derivatives. CONCLUSIONS The oleoresins and leaves extracts of studied Copaifera species were not cytotoxic in vivo, as well as not genotoxic in both in vitro and vivo assays, under the experimental conditions used. Therefore, the obtained results should be sufficient to demonstrate the absence of significant genotoxic risk of these Copaifera products for human use in the evaluated concentrations range.
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Affiliation(s)
- Ricardo Andrade Furtado
- University of Franca, Avenida Dr. Armando Salles de Oliveira 201, 14404-600 Franca, São Paulo, Brazil.
| | | | - Juliana Marques Senedese
- University of Franca, Avenida Dr. Armando Salles de Oliveira 201, 14404-600 Franca, São Paulo, Brazil; School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida Café s/n, 14040-903 Ribeirão Preto, São Paulo, Brazil
| | - Saulo Duarte Ozelin
- University of Franca, Avenida Dr. Armando Salles de Oliveira 201, 14404-600 Franca, São Paulo, Brazil
| | | | - Luís Fernando Leandro
- University of Franca, Avenida Dr. Armando Salles de Oliveira 201, 14404-600 Franca, São Paulo, Brazil
| | - Wendel Luiz de Oliveira
- University of Franca, Avenida Dr. Armando Salles de Oliveira 201, 14404-600 Franca, São Paulo, Brazil
| | - Jonas Joaquim Mangabeira da Silva
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida Café s/n, 14040-903 Ribeirão Preto, São Paulo, Brazil
| | - Larissa Costa Oliveira
- University of Franca, Avenida Dr. Armando Salles de Oliveira 201, 14404-600 Franca, São Paulo, Brazil
| | - Hervé Rogez
- School of Food Engineering, Institute of Technology, Federal University of Pará, 66095-780, Belém, PA, Brazil
| | - Sérgio Ricardo Ambrósio
- University of Franca, Avenida Dr. Armando Salles de Oliveira 201, 14404-600 Franca, São Paulo, Brazil
| | | | - Jairo Kenupp Bastos
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida Café s/n, 14040-903 Ribeirão Preto, São Paulo, Brazil
| | - Denise Crispim Tavares
- University of Franca, Avenida Dr. Armando Salles de Oliveira 201, 14404-600 Franca, São Paulo, Brazil
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Ricardo LM, Dias BM, Mügge FLB, Leite VV, Brandão MGL. Evidence of traditionality of Brazilian medicinal plants: The case studies of Stryphnodendron adstringens (Mart.) Coville (barbatimão) barks and Copaifera spp. (copaíba) oleoresin in wound healing. JOURNAL OF ETHNOPHARMACOLOGY 2018; 219:319-336. [PMID: 29501844 DOI: 10.1016/j.jep.2018.02.042] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 02/25/2018] [Accepted: 02/26/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The World Health Organization (WHO) recognizes the potential of plants used in secular traditional medicine and considers this an important source of evidence to assess their effectiveness and safety. Brazil is rich in biodiversity and traditional uses based on the Amerindian culture. However, many processes started with the arrival of the Portuguese in the year 1500. The successive economic cycles, for example, led to destruction of native vegetation and an intense cultural erosion. As a consequence, the information about the use of plants in the past centuries are dispersed and without interpretation. In this study a methodology to evidence the traditionality of Brazilian plants was demonstrated using data about barbatimão barks (Stryphnodendron adstringens (Mart.) Coville - Fabaceae) and Copaiba oleoresin (Copaifera spp. - Fabaceae) in wound healing, was established. MATERIAL AND METHODS Data about use of the plants were recovered from bibliography published between 1576 and 2011. The books (101) were classified using weights, considering the date of publication and the source of Information. Older books that describe primary information received weight 10, while books written more recently and with secondary information received weight 0.4. A score for each category of medicinal use was calculated based on the books weights and the frequency of citation. A review about the current use of both plants was also performed from ethnobotanical studies published in journals. RESULTS AND DISCUSSION The traditional secular use of barks of barbatimão and oleoresin of copaiba to treat wounds was confirmed based on the historic bibliographic research. The most frequent use of barbatimão in a timeline of 500 years of Brazil's history, was as astringent, whereas for copaíba was as healing of skin and mucosal lesions. The continuous and current use of these plants to treat wounds, confirmed by recent ethnobotanical studies, is an indicative of the resilience of these remedies and their effectiveness. CONCLUSION The use of preparations containing barbatimão barks and copaiba oleoresin can be considered effective in the treatment of wounds. Nonetheless, it is necessary to improve the quality of the formulas as established by WHO.
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Affiliation(s)
- Letícia M Ricardo
- Centro Especializado em Plantas Aromáticas, Medicinais e Tóxicas (CEPLAMT), Museu de História Natural e Jardim Botânico, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil; Programa de Pós-Graduação em Medicamentos e Assistência Farmacêutica, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil; Departamento de Assistência Farmacêutica e Insumos Estratégicos, Secretaria de Ciência, Tecnologia e Insumos Estratégicos, Ministério da Saúde, Brasília, DF, Brazil
| | - Bianca M Dias
- Centro Especializado em Plantas Aromáticas, Medicinais e Tóxicas (CEPLAMT), Museu de História Natural e Jardim Botânico, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Fernanda L B Mügge
- Centro Especializado em Plantas Aromáticas, Medicinais e Tóxicas (CEPLAMT), Museu de História Natural e Jardim Botânico, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Viviane V Leite
- Centro Especializado em Plantas Aromáticas, Medicinais e Tóxicas (CEPLAMT), Museu de História Natural e Jardim Botânico, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil; Hospital Publico Regional de Betim, Prefeitura Municipal de Betim, MG, Brazil
| | - Maria G L Brandão
- Centro Especializado em Plantas Aromáticas, Medicinais e Tóxicas (CEPLAMT), Museu de História Natural e Jardim Botânico, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil; Programa de Pós-Graduação em Medicamentos e Assistência Farmacêutica, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.
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Alves Gomes FT, Boleti APDA, Leandro LM, Squinello D, Aranha ESP, Vasconcelos MC, Cos P, Veiga-Junior VF, Lima ES. Biological Activities and Cytotoxicity of Eperua oleifera Ducke Oil-resin. Pharmacogn Mag 2017; 13:542-552. [PMID: 29200711 PMCID: PMC5701389 DOI: 10.4103/pm.pm_552_16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 02/01/2017] [Indexed: 01/09/2023] Open
Abstract
Background The oil-resin of Eperua oleifera Ducke has been used in popular medicine similarly to the copaiba oil (Copaifera spp.). Objective This study aimed to investigate the effects of the acid fraction of E. oleifera oil-resin (AFEOR) on cell proliferation, collagen production in human fibroblasts, inhibition of metalloproteinases, and cytotoxicity against tumor cell lines. Materials and Methods Acid fraction of E. oleifera was fractionated in the ion exchange column chromatography. Cytotoxicity and genotoxicity were evaluated by Alamar Blue® and Cometa assay. The inhibition of metalloproteinases was performed by zymography and Western blotting. Results The predominant acidic diterpenes in the AFEOR were copalic and hardwickiic acids. AFEOR caused morphology alteration and decrease of proliferation at concentrations higher than 5 μg/mL. It also caused significant collagen proliferation in fibroblasts. It showed cytotoxicity against tumoral and nontumoral cell lines, with IC50 values ranging from 13 to 50 μg/mL, and a hemolytic activity with an IC50 value of 38.29 μg/mL. AFEOR inhibited collagenase activity, with an IC50 value of 46.64 μg/mL, and matrix metalloproteinase-2 (MMP)-2 and MMP-9 in HaCaT cells or MMP-1 expression in MRC-5 cells. AFEOR induced genotoxicity in MRC-5 cells with a DNA damage index between 40% and 60% when compared to the negative controls (0%-20%). Conclusion For the first time, biological activities from oil-resin E. oleifera demonstrated ratifying somehow its popular use. SUMMARY Analysis of crude oil-resin and fractionation of diterpenic fraction was performance using selective ion-exchange column chromatographyCytotoxicity analysis and morphology were performed with different cell linesCollagen production in human fibroblasts, inhibition of metalloproteinases were demonstrated by zymography and Western blotting. Abbreviations used: AFEOR: Eperua oleifera oil-resin.
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Affiliation(s)
- Fernanda Torlania Alves Gomes
- Biological Activity Laboratory, Faculty of Pharmaceutical Sciences, Federal University of Amazonas, Manaus, Amazonas, Brazil
| | - Ana Paula de Araújo Boleti
- Biological Activity Laboratory, Faculty of Pharmaceutical Sciences, Federal University of Amazonas, Manaus, Amazonas, Brazil
| | - Lidiam M Leandro
- Chemistry Department, Exact Sciences Institute, Federal University of Amazonas, Manaus, Amazonas, Brazil
| | - Diego Squinello
- Chemistry Department, Exact Sciences Institute, Federal University of Amazonas, Manaus, Amazonas, Brazil
| | - Ellen S P Aranha
- Biological Activity Laboratory, Faculty of Pharmaceutical Sciences, Federal University of Amazonas, Manaus, Amazonas, Brazil
| | - Marne C Vasconcelos
- Biological Activity Laboratory, Faculty of Pharmaceutical Sciences, Federal University of Amazonas, Manaus, Amazonas, Brazil
| | - Paul Cos
- Laboratory of Microbiology, Parasitology and Hygiene, University of Antwerp, B2610 Antwerp, Belgium
| | - Valdir F Veiga-Junior
- Chemistry Department, Exact Sciences Institute, Federal University of Amazonas, Manaus, Amazonas, Brazil
| | - Emerson Silva Lima
- Biological Activity Laboratory, Faculty of Pharmaceutical Sciences, Federal University of Amazonas, Manaus, Amazonas, Brazil
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Skin Wound Healing Potential and Mechanisms of the Hydroalcoholic Extract of Leaves and Oleoresin of Copaifera langsdorffii Desf. Kuntze in Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:6589270. [PMID: 28928790 PMCID: PMC5592006 DOI: 10.1155/2017/6589270] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 06/25/2017] [Accepted: 07/04/2017] [Indexed: 12/22/2022]
Abstract
The wound healing is a complex process which, sometimes, can be a problem in public health because of the possibility of physical disability or even death. Due to the lack of a gold standard drug in skin wound treatment and aiming at the discovery of new treatments in skin repair and the mechanisms involved in the process, we used oleoresin (OR) from Copaifera langsdorffii and hydroalcoholic extract of the leaves (EH) to treat rat skin wounds. For that, male Wistar rats were divided into groups (n = 8): Lanette, Collagenase, 10% EH, or 10% OR and, after anesthesia, one wound of 2 cm was made in the back of animals. The wounds were treated once a day for 3, 7, or 14 days and the wound areas were measured. The rats were euthanized and skin samples destined to biochemical, molecular, and immunohistochemical analysis. The results showed a macroscopic retraction of the wounds of 10% EH and 10% OR creams and both treatments showed anti-inflammatory activity. Molecular and immunohistochemical results demonstrated the activity of Copaifera langsdorffii creams in angiogenesis, reepithelialization, wound retraction, and remodeling mechanisms.
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Boriollo MFG, Silva TA, Rodrigues-Netto MF, Silva JJ, Marques MB, Dias CTS, Höfling JF, Resck MCC, Oliveira NMS. Reduction of doxorubicin-induced genotoxicity by Handroanthus impetiginosus in mouse bone marrow revealed by micronucleus assay. BRAZ J BIOL 2017; 78:1-12. [PMID: 28699970 DOI: 10.1590/1519-6984.18515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 09/20/2016] [Indexed: 11/22/2022] Open
Abstract
Handroanthus impetiginosus has long been used in traditional medicine and various studies have determined the presence of bioactive chemical compounds and potential phytotherapeutics. In this study, the genotoxicity of the lyophilized tincture of H. impetiginosus bark (THI) was evaluated in mouse bone marrow using micronucleus assays. The interaction between THI and genotoxic effects induced by the chemotherapeutic agent, doxorubicin (DXR), was also analyzed. Experimental groups were evaluated 24 to 48 h after treatment with N-nitroso-N-ethylurea (NEU; 50 mg/kg), DXR (5 mg/kg), sodium chloride (NaCl; 150 mM), and THI (0.5-2 g/kg). Antigenotoxic assays were carried out using THI (0.5 g/kg) in combination with NEU or DXR. Analysis of the micronucleated polychromatic erythrocytes (MNPCEs) indicated no significant differences between treatment doses of THI (0.5-2 g/kg) and NaCl. Polychromatic erythrocyte (PCE) to normochromatic erythrocyte (NCE) ratios did not indicate any statistical differences between DXR and THI or NaCl, but there were differences between THI and NaCl. A significant reduction in MNPCEs and PCE/NCE ratios was observed when THI was administered in combination with DXR. This study suggested the absence of THI genotoxicity that was dose-, time-, and gender-independent and the presence of moderate systemic toxicity that was dose-independent, but time- and gender-dependent. The combination of THI and DXR also suggested antigenotoxic effects, indicating that THI reduced genotoxic effects induced by chemotherapeutic agents.
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Affiliation(s)
- M F G Boriollo
- Faculdade de Ciências Médicas, Universidade José do Rosário Vellano, Alfenas, MG, Brazil
| | - T A Silva
- Faculdade de Ciências Médicas, Universidade José do Rosário Vellano, Alfenas, MG, Brazil
| | - M F Rodrigues-Netto
- Faculdade de Ciências Médicas, Universidade José do Rosário Vellano, Alfenas, MG, Brazil
| | - J J Silva
- Faculdade de Ciências Médicas, Universidade José do Rosário Vellano, Alfenas, MG, Brazil
| | - M B Marques
- Faculdade de Ciências Médicas, Universidade José do Rosário Vellano, Alfenas, MG, Brazil
| | - C T S Dias
- Escola de Agricultura "Luiz de Queiroz", Universidade de São Paulo, Piracicaba, SP, Brazil
| | - J F Höfling
- Faculdade de Odontologia de Piracicaba, Universidade Estadual de Campinas, Piracicaba, SP, Brazil
| | - M C C Resck
- Faculdade de Ciências Médicas, Universidade José do Rosário Vellano, Alfenas, MG, Brazil
| | - N M S Oliveira
- Faculdade de Ciências Médicas, Universidade José do Rosário Vellano, Alfenas, MG, Brazil
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Copaifera multijuga oleoresin and its constituent diterpene (−)-copalic acid: Genotoxicity and chemoprevention study. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2017. [DOI: 10.1016/j.mrgentox.2017.05.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Brazilian Amazon Traditional Medicine and the Treatment of Difficult to Heal Leishmaniasis Wounds with Copaifera. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:8350320. [PMID: 28194218 PMCID: PMC5282428 DOI: 10.1155/2017/8350320] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Accepted: 10/25/2016] [Indexed: 12/19/2022]
Abstract
The present study describes the use of the traditional species Copaifera for treating wounds, such as ulcers scarring and antileishmanial wounds. It also relates phytochemical studies, evaluation of the leishmanicidal activity, and toxicity. The species of Copaifera with a higher incidence in the Amazon region are Copaifera officinalis, Copaifera reticulata, Copaifera multijuga Hayne. The copaiba oil is used in the Amazon's traditional medicine, especially as anti-inflammatory ingredient, in ulcers healing, and in scarring and for leishmaniasis. Chemical studies have shown that these oils contain diterpenes and sesquiterpenes. The copaiba oil and terpenes isolated have antiparasitic activity, more promising in the amastigote form of L. amazonensis. This activity is probably related to changes in the cell membrane and mitochondria. The oil showed low cytotoxicity and genotoxicity. Furthermore, it may interfere with immune response to infection and also has a healing effect. In summary, the copaiba oil is promising as leishmanicidal agent.
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Motta EV, Lemos M, Costa JC, Banderó-Filho VC, Sasse A, Sheridan H, Bastos JK. Galloylquinic acid derivatives from Copaifera langsdorffii leaves display gastroprotective activity. Chem Biol Interact 2017; 261:145-155. [DOI: 10.1016/j.cbi.2016.11.028] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 11/11/2016] [Accepted: 11/24/2016] [Indexed: 02/07/2023]
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Leandro LF, Moraes TDS, de Oliveira PF, Alves JM, Senedese JM, Ozelin SD, Resende FA, De Grandis RA, Varanda EA, Bastos JK, Tavares DC, Martins CHG. Assessment of the antibacterial, cytotoxic and mutagenic potential of the phenolic-rich hydroalcoholic extract from Copaifera trapezifolia Hayne leaves. J Med Microbiol 2016; 65:937-950. [PMID: 27452156 DOI: 10.1099/jmm.0.000316] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Copaifera trapezifolia Hayne occurs in the Atlantic Rainforest, which is considered one of the most important and endangered tropical forests on the planet. Although literature works have described many Copaifera spp., their biological activities remain little known. In the present study, we aimed to evaluate (1) the potential of the hydroalcoholic extract from C. trapezifolia leaves (CTE) to act against the causative agents of tooth decay and apical periodontitis and (2) the cytotoxicity and mutagenicity of CTE to ensure that it is safe for subsequent application. Concerning the tested bacteria, the MIC and the minimum bactericidal concentration of CTE varied between 100 and 400 µg ml-1. The time-kill assay conducted at a CTE concentration of 100 µg ml-1 evidenced bactericidal activity against Porphyromonas gingivalis (ATCC 33277) and Peptostreptococcus micros (clinical isolate) within 72 h. CTE at 200 µg ml-1 inhibited Porphyromonas gingivalis and Peptostreptococcus micros biofilm formation by at least 50 %. A combination of CTE with chlorhexidine dichlorohydrate did not prompt any synergistic effects. The colony-forming assay conducted on V79 cells showed that CTE was cytotoxic at concentrations above 156 µg ml-1. CTE exerted mutagenic effect on V79 cells, but the micronucleus test conducted on Swiss mice and the Ames test did not reveal any mutagenicity. Therefore, the use of standardized and safe extracts could be an important strategy to develop novel oral care products with antibacterial action. These extracts could also serve as a source of compounds for the discovery of new promising biomolecules.
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Affiliation(s)
- Luís Fernando Leandro
- Laboratory of Research in Applied Microbiology, University of Franca - UNIFRAN, Franca, 14404-600 São Paulo, Brazil
| | - Thaís da Silva Moraes
- Laboratory of Research in Applied Microbiology, University of Franca - UNIFRAN, Franca, 14404-600 São Paulo, Brazil
| | | | - Jacqueline Morais Alves
- Laboratory of Mutagenesis, University of Franca - UNIFRAN, Franca, 14404-600 São Paulo, Brazil
| | | | - Saulo Duarte Ozelin
- Laboratory of Mutagenesis, University of Franca - UNIFRAN, Franca, 14404-600 São Paulo, Brazil
| | - Flávia Aparecida Resende
- School of Pharmaceutical Sciences, State University of São Paulo, Araraquara, 14801-902 São Paulo, Brazil
| | - Rone Aparecido De Grandis
- School of Pharmaceutical Sciences, State University of São Paulo, Araraquara, 14801-902 São Paulo, Brazil
| | - Eliana Aparecida Varanda
- School of Pharmaceutical Sciences, State University of São Paulo, Araraquara, 14801-902 São Paulo, Brazil
| | - Jairo Kenupp Bastos
- School of Pharmaceutical Sciences, University of São Paulo, Ribeirão Preto, 14040-903 São Paulo, Brazil
| | - Denise Crispim Tavares
- Laboratory of Mutagenesis, University of Franca - UNIFRAN, Franca, 14404-600 São Paulo, Brazil
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de Villiers A, Venter P, Pasch H. Recent advances and trends in the liquid-chromatography–mass spectrometry analysis of flavonoids. J Chromatogr A 2016; 1430:16-78. [DOI: 10.1016/j.chroma.2015.11.077] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 11/25/2015] [Indexed: 12/22/2022]
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Antiedematogenic Evaluation of Copaifera langsdorffii Leaves Hydroethanolic Extract and Its Major Compounds. BIOMED RESEARCH INTERNATIONAL 2015; 2015:913152. [PMID: 26078969 PMCID: PMC4454708 DOI: 10.1155/2015/913152] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2015] [Accepted: 04/09/2015] [Indexed: 02/06/2023]
Abstract
Inflammatory disorders affect many people worldwide, and medicinal plants are used to ameliorate these health problems. This paper reports the antiedematogenic and analgesic evaluation of Copaifera langsdorffii Desf. leaves hydroethanolic extract (Cop) and two of its isolated compounds: quercetin-3-O-α-l-rhamnopyranosyl (quercitrin) and kaempferol-3-O-α-l-rhamnopyranosyl (afzelin). For that, the following experimental protocols were undertaken locomotor performance, writhing induced by acetic acid, antinociceptivity induced by formalin, hot plate latency, paw oedema induced by carrageenan and dextran, and cell migration induced by lipopolysaccharide (LPS), as well as the measurement of nitric oxide (NO), tumor necrosis factor alpha (TNF-α), interleukin 6 (IL-6), and interleukin 10 (IL-10) in macrophages. Neither the extract nor the isolated compounds displayed analgesic activity. The obtained results showed that C. langsdorffii extract possesses antiedematogenic properties acting on peripheral sites, whereas quercitrin and afzelin are not involved. Moreover, these properties are not associated with cell migration inhibition, TNF-α, IL-6, or IL-10 regulation.
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Boriollo MFG, Resende MR, da Silva TA, Públio JY, Souza LS, Dias CTDS, de Mello Silva Oliveira N, Fiorini JE. Evaluation of the mutagenicity and antimutagenicity of Ziziphus joazeiro Mart. bark in the micronucleus assay. Genet Mol Biol 2014; 37:428-38. [PMID: 25071409 PMCID: PMC4094613 DOI: 10.1590/s1415-47572014000300016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Accepted: 03/17/2014] [Indexed: 11/22/2022] Open
Abstract
The aim of this study was to evaluate the mutagenicity (clastogenicity/aneugenicity) of a glycolic extract of Ziziphus joazeiro bark (GEZJ) by the micronucleus assay in mice bone marrow. Antimutagenic activity was also assessed using treatments associated with GEZJ and doxorubicin (DXR). Mice were evaluated 24–48 h after exposure to positive (N-nitroso-N-ethylurea, NEU - 50 mg.kg−1 and DXR - 5 mg.kg−1) and negative (150 mM NaCl) controls, as well as treatment with GEZJ (0.5–2 g.kg−1), GEZJ (2 g.kg−1) + NEU and GEZJ (2 g.kg−1) + DXR. There were no significant differences in the frequencies of micronucleated polychromatic erythrocytes in mice treated with GEJZ and GEJZ + DXR compared to the negative controls, indicating that GEZJ was not mutagenic. Analysis of the polychromatic:normochromatic erythrocyte ratio revealed significant differences in the responses to doses of 0.5 g.kg−1 and 1–2 g.kg−1 and the positive control (NEU). These results indicated no systemic toxicity and moderate toxicity at lower and higher doses of GEZJ. The lack of mutagenicity and systemic toxicity in the antimutagenic assays, especially for treatment with GEZJ + DXR, suggested that phytochemical compounds in Z. joazeiro bark attenuated DXR-induced mutagenicity and the moderate systemic toxicity of a high dose of Z. joazeiro bark (2 g.kg−1). Further studies on the genotoxicity of Z. joazeiro extracts are necessary to establish the possible health risk in humans and to determine the potential as a chemopreventive agent for therapeutic use.
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Affiliation(s)
- Marcelo Fabiano Gomes Boriollo
- Laboratório de Farmacogenômica e Biologia Molecular , Faculdade de Ciências Médicas , Universidade José do Rosário Vellano , Alfenas, MG , Brazil . ; Centro de Pesquisa e Pós-Graduação em Ciência Animal , Área de Patologia e Farmacologia Animal , Universidade José do Rosário Vellano , Alfenas, MG , Brazil
| | - Marielly Reis Resende
- Departamento de Ciências Exatas , Escola de Agricultura "Luiz de Queiroz" , Universidade de São Paulo , Piracicaba, SP , Brazil
| | - Thaísla Andrielle da Silva
- Laboratório de Farmacogenômica e Biologia Molecular , Faculdade de Ciências Médicas , Universidade José do Rosário Vellano , Alfenas, MG , Brazil . ; Centro de Pesquisa e Pós-Graduação em Ciência Animal , Área de Patologia e Farmacologia Animal , Universidade José do Rosário Vellano , Alfenas, MG , Brazil
| | - Juliana Yoshida Públio
- Centro de Pesquisa e Pós-Graduação em Ciência Animal , Área de Patologia e Farmacologia Animal , Universidade José do Rosário Vellano , Alfenas, MG , Brazil
| | - Luiz Silva Souza
- Laboratório de Farmacogenômica e Biologia Molecular , Faculdade de Ciências Médicas , Universidade José do Rosário Vellano , Alfenas, MG , Brazil . ; Centro de Pesquisa e Pós-Graduação em Ciência Animal , Área de Patologia e Farmacologia Animal , Universidade José do Rosário Vellano , Alfenas, MG , Brazil
| | - Carlos Tadeu Dos Santos Dias
- Departamento de Ciências Exatas , Escola de Agricultura "Luiz de Queiroz" , Universidade de São Paulo , Piracicaba, SP , Brazil
| | - Nelma de Mello Silva Oliveira
- Laboratório de Farmacogenômica e Biologia Molecular , Faculdade de Ciências Médicas , Universidade José do Rosário Vellano , Alfenas, MG , Brazil . ; Laboratório de Ecotoxicologia e Microbiologia Ambiental , Faculdade de Tecnologia , Universidade Estadual de Campinas , Limeira, SP , Brazil
| | - João Evangelista Fiorini
- Laboratório de Farmacogenômica e Biologia Molecular , Faculdade de Ciências Médicas , Universidade José do Rosário Vellano , Alfenas, MG , Brazil . ; Centro de Pesquisa e Pós-Graduação em Ciência Animal , Área de Patologia e Farmacologia Animal , Universidade José do Rosário Vellano , Alfenas, MG , Brazil
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Boriollo MFG, Souza LS, Resende MR, da Silva TA, Oliveira NDMS, Resck MCC, Dias CTDS, Fiorini JE. Nongenotoxic effects and a reduction of the DXR-induced genotoxic effects of Helianthus annuus Linné (sunflower) seeds revealed by micronucleus assays in mouse bone marrow. Altern Ther Health Med 2014; 14:121. [PMID: 24694203 PMCID: PMC3992159 DOI: 10.1186/1472-6882-14-121] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Accepted: 03/27/2014] [Indexed: 11/18/2022]
Abstract
Background This research evaluated the genotoxicity of oil and tincture of H. annuus L. seeds using the micronucleus assay in bone marrow of mice. The interaction between these preparations and the genotoxic effects of doxorubicin (DXR) was also analysed (antigenotoxicity test). Methods Experimental groups were evaluated at 24-48 h post treatment with N-Nitroso-N-ethylurea (positive control – NEU), DXR (chemotherapeutic), NaCl (negative control), a sunflower tincture (THALS) and two sources of sunflower oils (POHALS and FOHALS). Antigenotoxic assays were carried out using the sunflower tincture and oils separately and in combination with NUE or DXR. Results For THALS, analysis of the MNPCEs showed no significant differences between treatment doses (250–2,000 mg.Kg-1) and NaCl. A significant reduction in MNPCE was observed when THALS (2,000 mg.Kg-1) was administered in combination with DXR (5 mg.Kg-1). For POHALS or FOHALS, analysis of the MNPCEs also showed no significant differences between treatment doses (250–2,000 mg.Kg-1) and NaCl. However, the combination DXR + POHALS (2,000 mg.Kg-1) or DXR + FOHALS (2,000 mg.Kg-1) not contributed to the MNPCEs reduction. Conclusions This research suggests absence of genotoxicity of THALS, dose-, time- and sex-independent, and its combination with DXR can reduce the genotoxic effects of DXR. POHALS and FOHALS also showed absence of genotoxicity, but their association with DXR showed no antigenotoxic effects.
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Effect of the Copaifera langsdorffii Desf. Leaf Extract on the Ethylene Glycol-Induced Nephrolithiasis in Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:131372. [PMID: 24027592 PMCID: PMC3762082 DOI: 10.1155/2013/131372] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Revised: 07/08/2013] [Accepted: 07/15/2013] [Indexed: 11/17/2022]
Abstract
The potential of the Copaifera langsdorffii leaves extract to prevent stone formation was analyzed by means of an ethylene glycol (EG) animal model of nephrolithiasis and an in vitro crystallization assay. Different doses of the C. langsdorffii leaves extract were administered to rats treated with EG. Urine biochemical parameters were quantified. CaOx deposits count and analysis of osteopontin expression were conducted on kidneys fixed in formalin. The in vitro assay was performed by turbidimetry. Phytochemical analyses of the extract were accomplished by HPLC-UV-DAD, and several compounds were isolated. C. langsdorffii leaf extract was able to avoid stone formation. The number of deposits was 50.30 ± 31.29 at the higher extract dose, compared to the value of 179.5 ± 45.96 achieved with the EG control. Significantly lower oxalate levels and OPN expression and increased citrate levels were observed after extract administration. In the in vitro assay, the extract diluted the formed crystals. Phytochemical analyses showed that the extract is rich in phenolic compounds that are capable of preventing stone formation. Thus, on the basis of our results, we suggest that the C. langsdorffii leaf extract has potential application in the prevention of kidney stone formation.
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Senedese JM, Alves JM, Lima IMDS, de Andrade EAP, Furtado RA, Bastos JK, Tavares DC. Chemopreventive effect of Copaifera langsdorffii leaves hydroalcoholic extract on 1,2-dimethylhydrazine-induced DNA damage and preneoplastic lesions in rat colon. Altern Ther Health Med 2013; 13:3. [PMID: 23295131 PMCID: PMC3606370 DOI: 10.1186/1472-6882-13-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2012] [Accepted: 12/19/2012] [Indexed: 01/29/2023]
Abstract
BACKGROUND Natural antioxidants present in common foods and beverages have drawn great attention to cancer prevention due to its health benefits, remarkable lack of toxicity and side effects. Copaifera langsdorffii, known as "copaiba", "capaiva", or "pau-de-óleo", belongs to the Leguminosae family and occurs in fields and grasslands in the northern and northeastern parts of Brazil. Biological studies of Copaifera corroborate its widespread use by the population. This paper describes the effects of C. langsdorffii leaves hydroalcoholic extract on the 1,2-dimethylhydrazine (DMH)-induced DNA damage and aberrant crypt foci (ACF) in the colon of male Wistar rats. METHODS The hydroalcoholic extract of C. langsdorffii was administered to rats by gavage at daily doses of 20, 40 and 80 mg/kg body weight. To evaluate DNA damage by the comet assay, animals received the C. langsdorffii extract for seven days and a single subcutaneous injection (sc) of 1,2-dimethylhydrazine (DMH) at a dose of 40 mg/kg on day 7. Animals were sacrificed 4 h after injection of DMH, to assess DNA damage. For the ACF assay, animals were acclimatized for one week (week 1) and then treated with the C. langsdorffii extract five times a week for four weeks (weeks 2 to 5). The rats received sc injections of DMH (40 mg/kg) on days 2 and 5 of weeks 2 and 3, to induce ACF. Animals were euthanized at week 5; i.e., four weeks after the first DMH treatment. RESULTS Animals treated with different doses of the C. langsdorffii extract combined with DMH had significantly lower frequency of DNA damage as compared with the positive control (animals treated with DMH only). The percentage of reduction in the frequency of DNA damage ranged from 14.30% to 38.8%. The groups treated with 40 and 80 mg/kg C. langsdorffii extract during and after DMH treatment presented significantly lower numbers of ACF and aberrant crypts compared with the control. CONCLUSION The C. langsdorffii extract significantly reduced the extent of DNA damage and ACF induced by DMH, suggesting that the extract has a protective effect against colon carcinogenesis.
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