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Mona A.M. Abo-Zeid, Farghaly AA, Hassan EM, Abdel-Samie NS. Phenolic Compounds of Codiaeum variegatum Spirale Lessened Cytotoxic and Genotoxic Effects of Mitomycin C in Mice Somatic and Germ Cells. CYTOL GENET+ 2020. [DOI: 10.3103/s0095452719060057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Cianfruglia L, Minnelli C, Laudadio E, Scirè A, Armeni T. Side Effects of Curcumin: Epigenetic and Antiproliferative Implications for Normal Dermal Fibroblast and Breast Cancer Cells. Antioxidants (Basel) 2019; 8:antiox8090382. [PMID: 31505772 PMCID: PMC6770744 DOI: 10.3390/antiox8090382] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 08/30/2019] [Accepted: 09/04/2019] [Indexed: 01/15/2023] Open
Abstract
Background: Curcumin is a yellow-orange pigment obtained from the plant Curcuma longa, which is known to exert beneficial effects in several diseases, including cancer. However, at high doses, it may produce toxic and carcinogenic effects in normal cells. In this context, we studied the effects of curcumin on normal human dermal fibroblast (HDF) cells and breast cancer cells (MCF7). Methods: We used cellular viability and growth assays to evaluate the antiproliferative action of curcumin, analyzed the endogenous glutathione levels, conducted cell cycle, apoptosis, and necrosis analyses, and performed immunodetection of glutathionylated and acetylated H3 histones. Results: We found that HDFs are more sensitive to curcumin treatment than MCF7 cells, resulting in pronounced arrest of cell cycle progression and higher levels of cellular death. In both cell types, the homeostasis of the redox cellular environment did not change after curcumin treatment; however, significant differences were observed in glutathione (GSH) levels and in S-glutathionylation of H3 histones. Conclusion: Curcumin administration can potentially confer benefits, but high doses may be toxic. Thus, its use as a dietary supplement or in cancer therapies has a double edge.
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Affiliation(s)
- Laura Cianfruglia
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche-Sez. Biochimica, Biologia e Fisica, Università Politecnica delle Marche, 60131 Ancona, Italy
| | - Cristina Minnelli
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, 60131 Ancona, Italy
| | - Emiliano Laudadio
- Dipartimento S.I.M.A.U., Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy
| | - Andrea Scirè
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, 60131 Ancona, Italy.
| | - Tatiana Armeni
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche-Sez. Biochimica, Biologia e Fisica, Università Politecnica delle Marche, 60131 Ancona, Italy.
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Validation of the 3D Skin Comet assay using full thickness skin models: Transferability and reproducibility. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2018; 827:27-41. [DOI: 10.1016/j.mrgentox.2018.01.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 12/18/2017] [Accepted: 01/09/2018] [Indexed: 12/21/2022]
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Biswas S, Maji C, Sarkar PK, Sarkar S, Chattopadhyay A, Mandal TK. Ameliorative effect of two Ayurvedic herbs on experimentally induced arsenic toxicity in calves. JOURNAL OF ETHNOPHARMACOLOGY 2017; 197:266-273. [PMID: 27496583 DOI: 10.1016/j.jep.2016.07.079] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Revised: 07/18/2016] [Accepted: 07/30/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Chronic arsenic poisoning due to contaminated subsoil water is a threat to society in West Bengal, India and in Bangladesh. The human being may also be affected by the exposed cattle from the affected area by consuming milk, egg, meat and others. In Ayurveda, several herbs like Haridra (turmeric), Shunthi (dried ginger root) and others are used for the management of arsenic poisoning. AIM OF THE STUDY The study was conducted to find out the ameliorative effect of turmeric and ginger powder against experimentally induced arsenic toxicity in calves. MATERIALS AND METHODS Twenty four calves were divided into four groups (group I, II, III and IV) having six animals in each group. Animals of group I, II and III were orally administered with sodium arsenite at 1mg/kg body weight for 90 days and in addition group II and group III animals were treated orally with turmeric and ginger powder respectively at 10mg/kg body weight from 46th day onwards. Group IV animals were given food and water without drug and served as control. Arsenic content was estimated in faeces, hair, urine and plasma in every 15 days. Bio-chemical, haematological and anti-oxidant parameters were also assessed. RESULTS Turmeric and ginger powder significantly (P<0.05) reduced the plasma and hair arsenic levels through increased excretion via faeces and urine. Haemoglobin level, TEC and TLC were decreased in groups I, II and III, however these were improved significantly (P<0.05) from 75th day onwards in turmeric and ginger treated groups. Increased activity of AST and ALT were significantly decreased (P<0.05) from 75th day onwards in group II and III. Blood urea nitrogen and plasma creatinine were also significantly decreased (P<0.05) in group II and III than group I from 60th day onwards. The SOD and catalase activity were significantly (P<0.05) reduced in groups I, II and III, but these were restored at the end of the experiment in turmeric and ginger treated groups. CONCLUSION The test drugs are found significantly effective not only to eliminate arsenic from the body but also give protection from possible damage caused by arsenic exposure, it may be concluded from the present study that turmeric and ginger can be helpful in the therapy of chronic arsenic toxicity in calves.
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Affiliation(s)
- Suman Biswas
- Department of Veterinary Medicine, Ethics and Jurisprudence, Faculty of Veterinary and Animal Sciences, West Bengal University of Animal and Fishery Sciences, Kolkata, India
| | - Chinmoy Maji
- Department of Veterinary Medicine, Ethics and Jurisprudence, Faculty of Veterinary and Animal Sciences, West Bengal University of Animal and Fishery Sciences, Kolkata, India
| | - Prasanta Kumar Sarkar
- J. B. Roy State Ayurvedic Medical College and Hospital, West Bengal University of Health Sciences, Kolkata 700004, West Bengal, India.
| | - Samar Sarkar
- Department of Veterinary Medicine, Ethics and Jurisprudence, Faculty of Veterinary and Animal Sciences, West Bengal University of Animal and Fishery Sciences, Kolkata, India
| | - Abichal Chattopadhyay
- Institute of Post Graduate Ayurvedic Education and Research, West Bengal University of Health Sciences, Kolkata 700009, West Bengal, India
| | - Tapan Kumar Mandal
- Department of Veterinary Pharmacology and Toxicology, Faculty of Veterinary and Animal Sciences, West Bengal University of Animal and Fishery Sciences, Kolkata, India
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Kirkland D, Kasper P, Martus HJ, Müller L, van Benthem J, Madia F, Corvi R. Updated recommended lists of genotoxic and non-genotoxic chemicals for assessment of the performance of new or improved genotoxicity tests. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2016; 795:7-30. [DOI: 10.1016/j.mrgentox.2015.10.006] [Citation(s) in RCA: 119] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 10/27/2015] [Accepted: 10/28/2015] [Indexed: 01/09/2023]
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Zhang BY, Shi YQ, Chen X, Dai J, Jiang ZF, Li N, Zhang ZB. Protective effect of curcumin against formaldehyde-induced genotoxicity in A549 Cell Lines. J Appl Toxicol 2012; 33:1468-73. [PMID: 23059809 DOI: 10.1002/jat.2814] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2012] [Revised: 07/19/2012] [Accepted: 07/19/2012] [Indexed: 11/09/2022]
Abstract
Formaldehyde is ubiquitous in the environment. It is known to be a genotoxic substance. We hypothesized that reactive oxygen species (ROS) and lipid peroxidation are involved in formaldehyde-induced genotoxicity in human lung cancer cell lines A549. To test this hypothesis, we investigated the effects of antioxidant on formaldehyde-induced genotoxicity in A549 Cell Lines. Formaldehyde exposure caused induction of DNA-protein cross-links (DPCs). Curcumin is an important antioxidant. Formaldehyde significantly increased malondialdehyde (MDA) levels, and decreased superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activity. In addition, the activation of NF-κB and AP-1 were induced by formaldehyde treatment. Pretreatment with curcumin counteracted formaldehyde-induced oxidative stress, ameliorated DPCs and attenuated activation of NF-κB and AP-1 in A549 Cell Lines. These results, taken together, suggest that formaldehyde induced genotoxicity through its ROS and lipid peroxidase activity and caused DPCs effects in A549 cells.
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Affiliation(s)
- Ben-Yan Zhang
- School of Public Health, Medical College, Wuhan University of Science and Technology, Wuhan, 430081, Hubei, China
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Kurien BT, Dillon SP, Dorri Y, D'Souza A, Scofield RH. Curcumin does not bind or intercalate into DNA and a note on the gray side of curcumin. Int J Cancer 2011; 128:242-5. [PMID: 20198612 PMCID: PMC7304286 DOI: 10.1002/ijc.25290] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Seo MJ, Park JE, Jang MS. Optimization of sponge cake added with turmeric (Curcuma longa L.) powder using mixture design. Food Sci Biotechnol 2010. [DOI: 10.1007/s10068-010-0087-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Corona-Rivera A, Urbina-Cano P, Bobadilla-Morales L, Vargas-Lares JDJ, Ramirez-Herrera MA, Mendoza-Magaua ML, Troyo-Sanroman R, Diaz-Esquivel P, Corona-Rivera JR. Protective in vivo effect of curcumin on copper genotoxicity evaluated by comet and micronucleus assays. J Appl Genet 2008; 48:389-96. [PMID: 17998598 DOI: 10.1007/bf03195238] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Curcumin is a phytochemical with antiinflammatory, antioxidant and anticarcinogenic activities. Apparently, curcumin is not genotoxic in vivo, but in vitro copper and curcumin interactions induce genetic damage. The aim of this study was to test if in vivo copper excess induces DNA damage measured by comet and micronucleus assays in the presence of curcumin. We tested 0.2% curcumin in Balb-C mice at normal (13 ppm) and high (65, 130 and 390 ppm) copper ion concentrations. The comet and micronucleus assays were performed 48 hr after chemical application. Comet tail length in animals treated with 0.2% curcumin was not significantly different from the control. Animals exposed to copper cations (up to 390 ppm) exhibited higher oxidative DNA damage. Curcumin reduced the DNA damage induced by 390 ppm copper. We observed statistically significant increase in damage in individuals exposed to 390 ppm copper versus the control or curcumin groups, which was lowered by the presence of curcumin. Qualitative data on comets evidenced that cells from individuals exposed to 390 ppm copper had longer tails (categories 3 and 4) than in 390 ppm copper + curcumin. A statistically significant increase in frequency of micronucleated erythrocytes (MNE/10000TE) was observed only in 390 ppm copper versus the control and curcumin alone. Also cytotoxicity measured as the frequency of polychromatic erythrocytes (PE/1000TE) was attributable to 390 ppm copper. The lowest cytotoxic effect observed was attributed to curcumin. In vivo exposure to 0.2% curcumin for 48 hr did not cause genomic damage, while 390 ppm copper was genotoxic, but DNA damage induced by 390 ppm copper was diminished by curcumin. Curcumin seems to exert a genoprotective effect against DNA damage induced by high concentrations of copper cations. The comet and micronucleus assays prove to be suitable tools to detect DNA damage by copper in the presence of curcumin.
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Affiliation(s)
- Alfredo Corona-Rivera
- Centro Universitario de Ciencias de la Salud, Departamento de Biología Molecular y Genómica, Instituto de Genética Humana Dr. Enrique Corona Rivera, Universidad de Guadalajara, Sierra Mojada # 950, Guadalajara, Jalisco, México.
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Cao J, Jiang LP, Liu Y, Yang G, Yao XF, Zhong LF. Curcumin-induced genotoxicity and antigenotoxicity in HepG2 cells. Toxicon 2007; 49:1219-22. [PMID: 17433396 DOI: 10.1016/j.toxicon.2007.02.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2006] [Revised: 02/08/2007] [Accepted: 02/08/2007] [Indexed: 11/29/2022]
Abstract
Curcumin, a polyphenolic yellow pigment found in turmeric, is commonly used as a coloring agent in foods, drugs, and cosmetics. In our previous study, we found that low levels of curcumin did not increase the reactive oxygen species (ROS) formation and caused no damage to DNA in human hepatoma G2 (HepG2) cells, but at high doses, curcumin imposed oxidative stress and damaged DNA. In the present study, we are determined to investigate the genotoxic and antigenotoxic effects of curcumin using HepG2 cell line, a relevant in vitro model to detect the cytoprotective, antigenotoxic, and cogenotoxic agents. The results of micronucleus (MN) assays showed that, on one hand, curcumin at the high tested concentrations (8 and 16 microg/ml) displayed a small but significant increase in the frequency of MN, and on the other hand, it was observed that the low tested concentration (2 microg/ml) significantly reduced the MN formation induced by the chemotherapeutic agent cyclophosphamide. The present results indicate that curcumin shows both genotoxicity and antigenotoxicity depending on its concentration.
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Affiliation(s)
- Jun Cao
- Department of Toxicology, Dalian Medical University, Dalian 116027, China
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Urbina-Cano P, Bobadilla-Morales L, Ramírez-Herrera MA, Corona-Rivera JR, Mendoza-Magaña ML, Troyo-Sanromán R, Corona-Rivera A. DNA damage in mouse lymphocytes exposed to curcumin and copper. J Appl Genet 2007; 47:377-82. [PMID: 17132903 DOI: 10.1007/bf03194648] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Dietary polyphenolics, such as curcumin, have shown antioxidant and anti-inflammatory effects. Some antioxidants cause DNA strand breaks in excess of transition metal ions, such as copper. The aim of this study was to evaluate the in vitro effect of curcumin in the presence of increasing concentrations of copper to induce DNA damage in murine leukocytes by the comet assay. Balb-C mouse lymphocytes were exposed to 50 microM curcumin and various concentrations of copper (10 microM, 100 microM and 200 microM). Cellular DNA damage was detected by means of the alkaline comet assay. Our results show that 50 microM curcumin in the presence of 100-200 microM copper induced DNA damage in murine lymphocytes. Curcumin did not inhibit the oxidative DNA damage caused by 50 microM H2O2 in mouse lymphocytes. Moreover, 50 microM curcumin alone was capable of inducing DNA strand breaks under the tested conditions. The increased DNA damage by 50 mM curcumin was observed in the presence of various concentrations of copper, as detected by the alkaline comet assay.
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Affiliation(s)
- Patricia Urbina-Cano
- Laboratorio de Citogenética Genotoxicidad y Biomonitoreo, Instituto de Genética Humana Dr. Enrique Corona Rivera, Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Jalisco, Mexico
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Joe B, Vijaykumar M, Lokesh BR. Biological properties of curcumin-cellular and molecular mechanisms of action. Crit Rev Food Sci Nutr 2005; 44:97-111. [PMID: 15116757 DOI: 10.1080/10408690490424702] [Citation(s) in RCA: 453] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Curcuminoids, a group of phenolic compounds isolated from the roots of Curcuma longa (Zingiberaceae), exhibit a variety of beneficial effects on health and on events that help in preventing certain diseases. A vast majority of these studies were carried out with curcumin (diferuloyl methane), which is a major curcuminoid. The most detailed studies using curcumin include anti-inflammatory, antioxidant, anticarcinogenic, antiviral, and antiinfectious activities. In addition, the wound healing and detoxifying properties of curcumin have also received considerable attention. As a result of extensive research on the therapeutic properties of curcumin, some understanding on the cellular, molecular, and biochemical mechanism of action of curcumin is emerging. These findings are summarized in this review.
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Affiliation(s)
- B Joe
- Department of Physiology and Molecular Medicine, Medical College of Ohio, Block Health Science Building, 3035 Arlington Avenue, Toledo, OH 43614-5804, USA.
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Antunes LMG, Araújo MCP, Dias FDL, Takahashi CS. Effects of H2O2, Fe2+ and Fe3+ on curcumin-induced chromosomal aberrations in CHO cells. Genet Mol Biol 2005. [DOI: 10.1590/s1415-47572005000100028] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Das A, Mukherjee A, Chakrabarti J. Sanguinarine: an evaluation of in vivo cytogenetic activity. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2004; 563:81-7. [PMID: 15324751 DOI: 10.1016/j.mrgentox.2004.06.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2003] [Revised: 06/08/2004] [Accepted: 06/08/2004] [Indexed: 10/26/2022]
Abstract
Sanguinarine (SG), a benzophenanthridine alkaloid, has been shown to possess anti-microbial, anti-inflammatory and antioxidant properties. In the UK and USA its salts has been in use in mouthwashes and toothpastes to inhibit dental plaque and improve gingival health. In India and Nepal consumption of mustard oil contaminated with argemone seeds containing sanguinarine, was associated with "dropsy" syndrome. In the present study, SG was evaluated in vivo in mouse bone marrow cells for its ability to induce clastogenicity and DNA damage in terms of increased sister chromatid exchange (SCE) frequencies. Doses of 5, 10, and 15 mg/kg body weight of SG given intra peritoneally induced a positive dose-dependent significant clastogenicity and SCE frequency increases (trend test alpha < or = 0.05). The minimum effective concentration to induce clastogenic and DNA damage was 10mg of SG/kg body weight. In addition to examining SCEs, the BrdUrd-differential technique was utilized to assess the effect of SG on cell replication. The analysis revealed that SG treatment did not significantly affect the distribution of cells among the different phases of the cell cycle. The proliferation rate index and average generation time data were statistically non-significant. This indicated that the alkaloid was not cytotoxic to the bone marrow cells at the doses tested. Based on the results of the present findings, the use of this alkaloid should be restricted.
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Affiliation(s)
- Aparajita Das
- Centre for Advanced Study in Cell and Chromosome Research, University of Calcutta, 35 Ballygunge Circular Road, Kolkata 700019, India
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Edenharder R, Krieg H, Köttgen V, Platt KL. Inhibition of clastogenicity of benzo[a]pyrene and of its trans-7,8-dihydrodiol in mice in vivo by fruits, vegetables, and flavonoids. Mutat Res 2003; 537:169-81. [PMID: 12787821 DOI: 10.1016/s1383-5718(03)00078-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
In the in vivo mouse bone marrow micronucleus assay, homogenates of spinach, artichoke, peaches, and blue grapes as well as commercial concentrates of these vegetables and fruits reduced induction of micronuclei by benzo[a]pyrene (BaP) by 43-50%. Concentrates of strawberries (31% reduction) and of cauliflower (20% reduction) were less potent. Inhibition of genotoxicity by spinach and peaches was not caused by any delay in maturation of micronucleated erythrocytes as shown by experiments with sampling times of 24, 48, and 72 h after dosing of BaP. Pre-treatment of the mice with spinach 48, 24, and 12h before application of BaP resulted in a 44% reduction of micronuclei while peaches generated only a marginal effect. A post-treatment procedure administering spinach or peaches 6h after dosing of BaP did not indicate any protective effects. When trans-7,8-dihydroxy-7,8-dihydrobenzo[a]pyrene (BaP-7,8-OH) was applied for induction of micronuclei spinach and peaches reduced the number of micronuclei by 55 and 48%, respectively. Pre-treatment of mice with spinach 96, 72, and 60 h before sacrifice caused a decline of hepatic 7-ethoxyresorufin-O-dealkylase (EROD) and of 7-pentoxyresorufin-O-dealkylase (PROD) activities by factors of 2.2 and 1.4, respectively. However, statistical significance was not reached. On the other hand, peaches had no influence on hepatic EROD or PROD activities. The flavonoids quercetin and its glucoside isoquercitrin, administered orally in doses of 0.03 mmol/kg body weight simultaneously with intraperitoneally given BaP, reduced the number of micronuclei in polychromatic erythrocytes of the bone marrow of mice by 73 and 33%. Ten-fold higher concentrations, however, reversed the effects with a particular strong increase observed with isoquercitrin (+109%; quercetin: +16%).
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Affiliation(s)
- R Edenharder
- Department of Hygiene and Environmental Medicine, University of Mainz, Obere Zahlbacher Strasse 67, D-55131 Mainz, Germany.
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El Hamss R, Idaomar M, Alonso-Moraga A, Muñoz Serrano A. Antimutagenic properties of bell and black peppers. Food Chem Toxicol 2003; 41:41-7. [PMID: 12453727 DOI: 10.1016/s0278-6915(02)00216-8] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The wing Somatic Mutation And Recombination Test (SMART) in Drosophila melanogaster was used to study the modulating action of bell pepper (Capsicum annuum) and black pepper (Piper nigrum) in combination with the alkylating agent methyl methanesulfonate (MMS) and the promutagen agent ethyl carbamate (EC). Larvae trans-heterozygous for the third chromosome recessive markers multiple wing hairs (mwh) and flare-3 [flr(3)] were fed genotoxins alone or in combination with each of the two spices. Genetic changes induced in somatic cells of the wing's imaginal discs lead to the formation of mutant clones on the wing blade. Our results showed that bell pepper was effective in reducing the mutational events induced by EC and MMS and black pepper was only effective against EC. Pretreatment of 2-day-old larvae with the spices for 24 h followed by a treatment with EC and MMS was only effective in reducing mutations induced by EC. Suppression of metabolic activation or interaction with the active groups of mutagens could be mechanisms by which the spices exert their antimutagenic action.
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Affiliation(s)
- R El Hamss
- Université Abdelmalek Essaâdi, Unité de Biologie Cellulaire et Moléculaire (BCM) BP 2121, 93002 Tétouan, Morocco
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Araújo MC, Antunes LM, Takahashi CS. Protective effect of thiourea, a hydroxyl-radical scavenger, on curcumin-induced chromosomal aberrations in an in vitro mammalian cell system. TERATOGENESIS, CARCINOGENESIS, AND MUTAGENESIS 2001; 21:175-80. [PMID: 11223894 DOI: 10.1002/1520-6866(2001)21:2<175::aid-tcm6>3.0.co;2-v] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Natural dietary antioxidants are extensively studied for their ability to protect cells from damage to DNA, protein, and lipids induced by antitumor agents or radiation that leads to the generation of free radical in normal cells in vivo and in vitro. Curcumin is a natural antioxidant known to possess therapeutic properties and has been reported to scavenge free radicals and to inhibit clastogenesis in mammalian cells. However, curcumin has been reported to induce a significant increase in the frequency of chromosomal aberrations in Chinese hamster ovary (CHO) cells. To investigate whether the clastogenic activity of curcumin in CHO cells in culture can be ascribed to a pro-oxidant behavior, mediated by free radical generation, experiments were carried out with the combination of curcumin (15 microg/ml) and thiourea (10, 20, or 40 microg/ml), a potent hydroxyl radical scavenger. The results showed that the clastogenic action of curcumin was statistically decreased in a dose-dependent manner in the presence of thiourea. These data have shown that curcumin-induced chromosomal damage in CHO cells can be mediated by hydroxyl radical generation in the present experimental conditions. Teratogenesis Carcinog. Mutagen. 21:175-180, 2001.
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Affiliation(s)
- M C Araújo
- Departamento Genética, Universidade Federal de Pernambuco, Pernambuco, Brazil
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Abstract
The present study focuses on the clastogenic effect of ginger rhizome. Crude aqueous extracts of ginger were gavaged at doses of 0. 5, 1, 2, 5, 10 g/kg body weight and ginger oil (0.625, 1.250 and 2. 50 ml/kg body weight) was administered by intraperitoneal injection to male mice. Chromosome damage was studied in a preparation made from bone marrow cells following colchicine injection to all mice and examination of the cells after pretreatment in hypotonic solution, fixation, air drying and staining in Giemsa solution. Attention is drawn to the weakness of the clastogenic activity expressed by the ginger extract. In comparison ginger oil gave a higher frequency of chromosomal aberrations. It is suggested therefore, that the extract may contain substance(s) that suppress clastogenesis in the bone marrow cells of mice.
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Affiliation(s)
- M J Mukhopadhyay
- Centre for Advanced Study in Cell and Chromosome Research, Department of Botany, University of Calcutta, Calcutta, India
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Abstract
Muitos compostos presentes nos alimentos, tanto naturalmente, como adicionados ou produzidos durante o processamento, já foram testados quanto à mutagenicidade ou antimutagenicidade em diferentes sistemas experimentais. O grande número de corantes para alimentos, naturais ou sintéticos, tem levado os pesquisadores a avaliar a mutagenicidade e/ou antimutagenicidade desses compostos. Alguns corantes sintéticos apresentaram potencial mutagênico e seu uso foi proibido em alguns países. Muitos corantes naturais testados apresentaram potencial antimutagênico em pelo menos um sistema-teste, entretanto, isto não quer dizer que os corantes naturais são inócuos. O corante natural curcumina, por exemplo, apresentou potencial antimutagênico nos testes in vivo e foi mutagênico nos testes in vitro. Este paradoxo ressalta a importância de uma avaliação criteriosa e ampla na avaliação da possível atividade mutagênica e/ou antimutagênica dos corantes.
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Antunes LM, Araújo MC, Dias FL, Takahashi CS. Modulatory effects of curcumin on the chromosomal damage induced by doxorubicin in Chinese hamster ovary cells. TERATOGENESIS, CARCINOGENESIS, AND MUTAGENESIS 2000; 19:1-8. [PMID: 10321405 DOI: 10.1002/(sici)1520-6866(1999)19:1<1::aid-tcm1>3.0.co;2-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Curcumin, a natural phenolic compound, is gaining importance as a free radical scavenger. This study was undertaken to investigate the modulatory effects of curcumin on the chromosomal damage induced by the antitumoral doxorubicin (DXR), a known free radical generator, in Chinese hamster ovary cells in culture. Cells were treated with three concentrations of curcumin (2.5, 5, or 10 microg/ml) and then treated with DXR (1.0 microg/ml) during different phases of the cell cycle. The results show that curcumin induces chromosomal damage in CHO at the highest concentration when compared to the untreated control. Neither treatment with curcumin shows a reduction in the clastogenicity of DXR. Instead, a statistically significant increase in the frequency of chromosomal damage was observed when the middle and the highest concentrations of curcumin were associated with DXR during the G1/S, S, and S/G2 phases of the cell cycle. The results clearly indicate the potentiating effect of curcumin on DXR-induced chromosomal damage.
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Affiliation(s)
- L M Antunes
- Department of Genetics, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Brazil.
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Araújo MC, Dias FL, Takahashi CS. Potentiation by turmeric and curcumin of gamma-radiation-induced chromosome aberrations in Chinese hamster ovary cells. TERATOGENESIS, CARCINOGENESIS, AND MUTAGENESIS 2000; 19:9-18. [PMID: 10321406 DOI: 10.1002/(sici)1520-6866(1999)19:1<9::aid-tcm2>3.0.co;2-h] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The effect of turmeric and curcumin, two natural antioxidants, on the frequencies of chromosome aberrations induced in Chinese hamster ovary (CHO) cells by gamma-radiation was investigated. Cells were treated with three concentrations of each drug, turmeric (100, 250, and 500 microg/ml) and curcumin (2.5, 5, and 10 microg/ml), and then irradiated (2.5 Gy) during different phases of the cell cycle. Turmeric was not clastogenic by itself, whereas curcumin at 10 microg/ml enhanced the chromosomal damage frequency. Neither of the two antioxidants showed protective effect against the clastogenicity of gamma-radiation. Instead, an obvious increase in the frequencies of chromosome aberrations was observed when turmeric at 500 microg/ml was associated with gamma-radiation during G2/S phase, and curcumin at 10 microg/ml plus gamma-radiation during S and G2/S phases of the cell cycle. The results clearly indicate the exacerbated effect of turmeric and curcumin on radiation-induced clastogenicity, suggesting that these antioxidants are also potentiating agents depending on the experimental conditions.
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Affiliation(s)
- M C Araújo
- Department of Genetics, Federal University of Pernambuco, Brazil.
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Antunes LM, Araújo MC, Darin JD, Bianchi ML. Effects of the antioxidants curcumin and vitamin C on cisplatin-induced clastogenesis in Wistar rat bone marrow cells. Mutat Res 2000; 465:131-7. [PMID: 10708978 DOI: 10.1016/s1383-5718(99)00220-x] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
The use of dietary antioxidants to prevent antitumor agent-induced chromosomal damage in nontumor cells is currently eliciting considerable interest. Curcumin (CMN) is a dietary antioxidant that has been reported to protect against clastogenesis in in vivo and in vitro assays. This study was undertaken to investigate the modulatory effects of CMN on cisplatin-induced chromosomal aberrations in Wistar rat bone marrow cells and whether there is any potentiation of these effects with the combination between CMN and vitamin C (VC), which has been reported to reduce the clastogenic effect of many antitumor agents in in vivo assays. Animals treated with CMN plus a single dose of cisplatin, at 18, 24 or 72 h following treatment, presented a statistically significant reduction in the total amount of chromosomal damage and in the number of abnormal metaphases. The results also indicate that the combination between antioxidants would not be effective in protecting against cisplatin-induced chromosomal damage in animals sacrificed 24 h after cisplatin treatment. Under the present experimental conditions, CMN could prevent cisplatin-induced clastogenesis by acting as a free radical scavenger.
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Affiliation(s)
- L M Antunes
- Departamento Análises Clínicas, Toxicológicas e Bromatológicas, Lab. de Bromatologia, Faculdade de Ciências Farmacêuticas de Ribeirão Prêto, Universidade de São Paulo, Av. Café s/n, 14040-903, Ribeirão Prêto, Brazil.
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Araújo MCP, Dias FDL, Kronka SN, Takahashi CS. Effects of turmeric and its active principle, curcumin, on bleomycin-induced chromosome aberrations in Chinese hamster ovary cells. Genet Mol Biol 1999. [DOI: 10.1590/s1415-47571999000300021] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Naturally occurring antioxidants have been extensively studied for their capacity to protect organisms and cells from oxidative damage. Many plant constituents including turmeric and curcumin appear to be potent antimutagens and antioxidants. The effects of turmeric and curcumin on chromosomal aberration frequencies induced by the radiomimetic agent bleomycin (BLM) were investigated in Chinese hamster ovary (CHO) cells. Three concentrations of each drug, turmeric (100, 250 and 500 <FONT FACE="Symbol">m</FONT>g/ml) and curcumin (2.5, 5 and 10 <FONT FACE="Symbol">m</FONT>g/ml), were combined with BLM (10 <FONT FACE="Symbol">m</FONT>g/ml) in CHO cells treated during the G1/S, S or G2/S phases of the cell cycle. Neither turmeric nor curcumin prevented BLM-induced chromosomal damage in any phases of the cell cycle. Conversely, a potentiation of the clastogenicity of BLM by curcumin was clearly observed in cells treated during the S and G2/S phases. Curcumin was also clastogenic by itself at 10 µg/ml in two protocols used. However, the exact mechanism by which curcumin produced clastogenic and potentiating effects remains unknown.
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