101
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Cheli F, Giromini C, Baldi A. Mycotoxin mechanisms of action and health impact: ‘in vitro’ or ‘in vivo’ tests, that is the question. WORLD MYCOTOXIN J 2015. [DOI: 10.3920/wmj2014.1864] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The aim of this paper is to present examples of in vitro and in vivo tests for mycotoxin mechanisms of action and evaluation of health effects, with a focus on the gut environment and toxicity testing. In vivo investigations may provide information on the net effects of mycotoxins in whole animals, whereas in vitro models represent effective tools to perform simplified experiments under uniform and well-controlled conditions and a suitable alternative to in vivo animal testing providing insights not achievable with animal studies. The main limits of in vitro models are the lack of interactions with other cells and extracellular factors, lack of hormonal or immunological influences, and lack or different levels of in vitro expression of genes involved in the overall response to mycotoxins. The translation of in vitro data into meaningful in vivo effects remains an unsolved problem. The main issues to be considered are the mycotoxin concentration range in accordance with levels encountered in realistic situations, the identification of reliable biomarkers of mycotoxin toxicity, the measurement of the chronic toxicity, the evaluation of single- or multi-toxin challenge. The gastrointestinal wall is the first barrier preventing the entry of undesirable substances. The intestinal epithelium can be exposed to high concentrations of mycotoxins upon ingestion of contaminated food and the amount of mycotoxin consumed via food does not always reflect the amount available to exert toxic actions in a target organ. In vitro digestion models in combination with intestinal epithelial cells are powerful tools to screen and predict the in vivo bioavailability and digestibility of mycotoxins in contaminated food and correctly estimate health effects. In conclusion, in vitro and in vivo tests are complementary approaches for providing a more accurate picture of the health impact of mycotoxins and improved understanding and evaluation of relevant dietary exposure and risk scenarios.
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Affiliation(s)
- F. Cheli
- Department of Health, Animal Science and Food Safety, Università degli Studi di Milano, Via Trentacoste 2, 20134, Milano, Italy
| | - C. Giromini
- Department of Health, Animal Science and Food Safety, Università degli Studi di Milano, Via Trentacoste 2, 20134, Milano, Italy
| | - A. Baldi
- Department of Health, Animal Science and Food Safety, Università degli Studi di Milano, Via Trentacoste 2, 20134, Milano, Italy
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102
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Lai FN, Ma JY, Liu JC, Wang JJ, Cheng SF, Sun XF, Li L, Li B, Nyachoti CM, Shen W. The influence of N-acetyl-l-cysteine on damage of porcine oocyte exposed to zearalenone in vitro. Toxicol Appl Pharmacol 2015; 289:341-8. [PMID: 26386189 DOI: 10.1016/j.taap.2015.09.010] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Revised: 08/24/2015] [Accepted: 09/14/2015] [Indexed: 01/01/2023]
Abstract
Zearalenone (ZEA), one of the mycotoxins produced by Fusarium fungi, impacts porcine reproduction by interfering with the estrogen signaling pathway. Previous studies have shown that ZEA inhibits porcine oocyte maturation through the formation of aberrant spindle. To explore the effect of ZEA on porcine oocyte meiotic maturation, the extent of both nuclear and cytoplasmic maturation was examined in this study. Compared with control group, presence of ZEA (3 μM) during oocyte maturation, significantly inhibited the polar body extrusions from 71% to 51%, and significantly increased intracellular reactive oxygen species (ROS) level (12.01 vs. 5.89). Intracellular glutathione (GSH) content in ZEA treatment group was lower than in the control group (1.08 pmol/oocyte vs. 0.18 pmol/oocyte), and cortical granules of cortical area distributed oocytes were reduced (88% vs. 62%). ZEA decreases cumulus expansion in both morphology and mRNA level (HAS2, PTX3, TNFAIP6 and CX43). Addition of N-acetyl-l-cysteine (NAC) to the oocyte maturation media reversed the ZEA-induced inhibition of polar body extrusion (from 69% to 81%), up-regulated ROS (from 7.9 to 6.5), down-regulated GSH content (from 0.16 to 0.82 pmol/oocyte) and recovered cumulus cells expansion in morphology and mRNA level. It is concluded that ZEA affects both oocyte nucleus and cytoplasmic maturation during in vitro maturation, and NAC can reverse these damages to some extent.
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Affiliation(s)
- Fang-Nong Lai
- College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, China; Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Jun-Yu Ma
- Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China; Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
| | - Jing-Cai Liu
- College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, China; Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Jun-Jie Wang
- Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China; Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
| | - Shun-Feng Cheng
- Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China; Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
| | - Xiao-Feng Sun
- College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, China; Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Lan Li
- Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China; Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
| | - Bo Li
- Chengguo Station of Animal Husbandry and Veterinary, Laizhou 261437, China
| | | | - Wei Shen
- Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China; Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China.
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103
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Effects of Dietary Exposure to Zearalenone (ZEN) on Carp (Cyprinus carpio L.). Toxins (Basel) 2015; 7:3465-80. [PMID: 26343724 PMCID: PMC4591655 DOI: 10.3390/toxins7093465] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 07/31/2015] [Accepted: 08/17/2015] [Indexed: 01/10/2023] Open
Abstract
The mycotoxin zearalenone (ZEN) is frequently contaminating animal feeds including feed used in aquaculture. In the present study, the effects of dietary exposure to ZEN on carp (Cyprinus carpio L.) were investigated. ZEN at three different concentrations (low dose: 332 µg kg−1, medium dose: 621 µg kg−1 and high dose: 797 µg kg−1 final feed, respectively) was administered to juvenile carp for four weeks. Additional groups received the mycotoxin for the same time period but were fed with the uncontaminated diet for two more weeks to examine the reversibility of the ZEN effects. No effects on growth were observed during the feeding trial, but effects on haematological parameters occurred. In addition, an influence on white blood cell counts was noted whereby granulocytes and monocytes were affected in fish treated with the medium and high dose ZEN diet. In muscle samples, marginal ZEN and α-zearalenol (α-ZEL) concentrations were detected. Furthermore, the genotoxic potential of ZEN was confirmed by analysing formation of micronuclei in erythrocytes. In contrast to previous reports on other fish species, estrogenic effects measured as vitellogenin concentrations in serum samples were not increased by dietary exposure to ZEN. This is probably due to the fact that ZEN is rapidly metabolized in carp.
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104
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Invited review: Diagnosis of zearalenone (ZEN) exposure of farm animals and transfer of its residues into edible tissues (carry over). Food Chem Toxicol 2015; 84:225-49. [PMID: 26277628 DOI: 10.1016/j.fct.2015.08.009] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 07/27/2015] [Accepted: 08/10/2015] [Indexed: 12/20/2022]
Abstract
The aim of the review was to evaluate the opportunities for diagnosing the zearalenone (ZEN) exposure and intoxication of farm animals by analyzing biological specimens for ZEN residue levels. Metabolism is discussed to be important when evaluating species-specific consequences for the overall toxicity of ZEN. Besides these toxicological facts, analytics of ZEN residues in various animal-derived matrices requires sensitive, matrix-adapted multi-methods with low limits of quantification, which is more challenging than the ZEN analysis in feed. Based on dose-response experiments with farm animals, the principle usability of various specimens as bio-indicators for ZEN exposure is discussed with regard to individual variation and practicability for the veterinary practitioner. ZEN residue analysis in biological samples does not only enable evaluation of ZEN exposure but also allows the risk for the consumer arising from contaminated foodstuffs of animal origin to be assessed. It was compiled from literature that the tolerable daily intake of 0.25 μg ZEN/kg body weight and day is exploited to approximately 8%, when a daily basket of animal foodstuffs and associated carry over factors are assumed at reported ZEN contamination levels of complete feed.
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105
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Salem IB, Boussabbeh M, Neffati F, Najjar MF, Abid-Essefi S, Bacha H. Zearalenone-induced changes in biochemical parameters, oxidative stress and apoptosis in cardiac tissue. Hum Exp Toxicol 2015; 35:623-34. [DOI: 10.1177/0960327115597467] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Zearalenone (ZEN) is a mycotoxin from Fusarium species commonly found in food commodities and is known to cause reproductive disorders. Several in vivo studies have shown that ZEN is haematotoxic and hepatotoxic and causes several alterations of immunological parameters. Meantime, the available information on the cardiotoxic effects of ZEN is very much limited. In the present study, we investigated the toxic effects of ZEN in heart tissues of Balb/c mice. We demonstrated that ZEN (40 mg kg−1 body weight (b.w.)) increased creatine phosphokinase, lactate dehydrogenase, aspartate transaminase, alanine transaminase, total cholesterol and triglyceride levels and induced oxidative stress as monitored by measuring the malondialdehyde level, the generation of protein carbonyls, the catalase and superoxide dismutase activity and the expression of the heat shock proteins (Hsp 70). We also demonstrated that acute administration of ZEN triggers apoptosis in cardiac tissue. Furthermore, we aimed to evaluate the safety and efficacy of crocin (CRO), a natural carotenoid, to prevent ZEN-induced cardiotoxicity in mice. In fact, combined treatment of ZEN with different doses of CRO (50, 100, and 250 mg kg−1 b.w.) showed a significant reduction of ZEN-induced toxicity for all tested markers in a dose-dependent manner. It could be concluded that CRO was effective in the protection against ZEN-induced toxicity in cardiac tissue.
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Affiliation(s)
- I Ben Salem
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, Monastir, Tunisia
- Faculty of Sciences of Bizerte, Carthage University, Carthage, Tunisia
| | - M Boussabbeh
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, Monastir, Tunisia
- Faculty of Sciences of Bizerte, Carthage University, Carthage, Tunisia
| | - F Neffati
- Laboratory of Biochemistry and Toxicology, Monastir University Hospital, Monastir, Tunisia
| | - MF Najjar
- Laboratory of Biochemistry and Toxicology, Monastir University Hospital, Monastir, Tunisia
| | - S Abid-Essefi
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, Monastir, Tunisia
| | - H Bacha
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, Monastir, Tunisia
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106
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Shen W, Mao H, Huang Q, Dong J. Benzenediol lactones: a class of fungal metabolites with diverse structural features and biological activities. Eur J Med Chem 2015; 97:747-77. [DOI: 10.1016/j.ejmech.2014.11.067] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 11/04/2014] [Accepted: 11/26/2014] [Indexed: 12/12/2022]
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107
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Obremski K, Poniatowska-Broniek G. Zearalenone induces apoptosis and inhibits proliferation in porcine ileal Peyer's patch lymphocytes. Pol J Vet Sci 2015; 18:153-61. [PMID: 25928923 DOI: 10.1515/pjvs-2015-0020] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Zearalenone (ZEN) is one of the most active natural estrogenic compounds that induces apoptosis. This study has been prompted by the widespread occurrence of ZEN in food and feed and limited knowledge about the effects of exposure to low doses of ZEN on the immune system. The aim of the study was to verify the hypothesis that low doses of ZEN contribute to induction of apoptosis and inhibition of proliferation in lymphocytes of the germinal centers (GC) of ileal Peyer's patches (IPP) in pigs. The experiment was performed on 30 female Polish Large White pigs, aged 2 months, with body weight of 15-18 kg, divided into two groups: control (C, n = 15) and experimental (Z, n = 15). On days 14, 28 and 42 of exposure to ZEN (100 μg kg(-1) feed day(-1)), apoptosis in IPP GC was evaluated histologically in HE-stained specimens, immunohistochemically by active caspase-3 staining and in mononucleosome and oligonucleosome detection-based ELISA. Proliferation was evaluated histologically by mitosis detection in HE-stained specimens, immunohistochemically by PCNA staining and in the MTT tetrazolium salt colorimetric assay detecting mitogenic responses of B cells to LPS. Exposure to low doses of ZEN for several weeks intensified apoptosis and weakened proliferation in IPP lymphocytes. ZEN influences gut-associated lymphoid tissue (GALT) by decreasing the expression of CD21+ on B cells and by increasing the percentage of B1 cell populations.
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108
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Mahankali B, Srihari P. A Carbohydrate Approach for the First Total Synthesis of Cochliomycin C: Stereoselective Total Synthesis of Paecilomycin E, Paecilomycin F and 6′-epi-Cochliomycin C. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500395] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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109
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Harutyunyan T, Hovhannisyan G, Babayan N, Othman MA, Liehr T, Aroutiounian R. Influence of aflatoxin B1 on copy number variants in human leukocytes in vitro. Mol Cytogenet 2015; 8:25. [PMID: 25901182 PMCID: PMC4404608 DOI: 10.1186/s13039-015-0131-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Accepted: 02/25/2015] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Aflatoxin B1 (AFB1) is a mycotoxin produced by Aspergillus spec. The latter are worldwide contaminants of food with mutagenic and carcinogenic activities in animals and humans. AFB1 was shown to have deleterious effects on metabolism of eukaryotes in many model systems, including the ability to inhibit DNA replication. An agent that disturbs DNA replication may also have the potential to induce de novo DNA copy number variations (CNVs). RESULTS Blood samples of three clinically healthy carriers were treated in vitro with AFB1 and chromosome preparations were subjected to parental origin determination fluorescence in situ hybridization (pod-FISH). Probes able to visualize CNVs in 8p21.2 and 15q11.2 were applied. In this setting here for the first time an influence of AFB1 on molecular-cytogenetically detectable CNVs could be shown. CONCLUSIONS The obtained results indicate that: (i) pod-FISH is a single cell directed, sensitive and suitable method for the analysis of mutagen induced CNVs, (ii) AFB1 has the potential to induce in vitro instability of known CNVs in human leukocytes.
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Affiliation(s)
- Tigran Harutyunyan
- Department of Genetics and Cytology, Yerevan State University, 1 Alex Manoogian, 0025 Yerevan, Armenia
| | - Galina Hovhannisyan
- Department of Genetics and Cytology, Yerevan State University, 1 Alex Manoogian, 0025 Yerevan, Armenia
| | - Nelly Babayan
- Department of Genetics and Cytology, Yerevan State University, 1 Alex Manoogian, 0025 Yerevan, Armenia ; Institute of Molecular Biology, National Academy of Sciences, 7 Hasratyan, 0014 Yerevan, Armenia
| | - Moneeb Ak Othman
- Institute of Human Genetics, Jena University Hospital, Friedrich Schiller University, Kollegiengasse 10, Jena, D-07743 Germany
| | - Thomas Liehr
- Institute of Human Genetics, Jena University Hospital, Friedrich Schiller University, Kollegiengasse 10, Jena, D-07743 Germany
| | - Rouben Aroutiounian
- Department of Genetics and Cytology, Yerevan State University, 1 Alex Manoogian, 0025 Yerevan, Armenia
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110
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Li T, Kim BB, Ha TH, Shin YB, Kim MG. The effects of pH and surfactants on the absorption and fluorescence properties of ochratoxin A and zearalenone. LUMINESCENCE 2015; 30:1106-11. [DOI: 10.1002/bio.2866] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Accepted: 01/03/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Taihua Li
- Department of School of Physics and Chemistry; Gwangju Institute of Science & Technology (GIST); 261 Cheomdan-gwagiro Gwangju 500-712 Republic of Korea
| | - Bo Bae Kim
- Biomedical Translational Research Center; Korea Research Institute of Bioscience & Biotechnology (KRIBB); 125 Gwahak-ro, Yuseong-gu Daejeon 305-806 Republic of Korea
| | - Tae Hwan Ha
- Biomedical Translational Research Center; Korea Research Institute of Bioscience & Biotechnology (KRIBB); 125 Gwahak-ro, Yuseong-gu Daejeon 305-806 Republic of Korea
| | - Yong-Beom Shin
- Biomedical Translational Research Center; Korea Research Institute of Bioscience & Biotechnology (KRIBB); 125 Gwahak-ro, Yuseong-gu Daejeon 305-806 Republic of Korea
| | - Min-Gon Kim
- Department of School of Physics and Chemistry; Gwangju Institute of Science & Technology (GIST); 261 Cheomdan-gwagiro Gwangju 500-712 Republic of Korea
- Advanced Photonics Research Institute; Gwangju Institute of Science & Technology (GIST); 261 Cheomdan-gwagiro Gwangju 500-712 Republic of Korea
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111
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Gerez JR, Pinton P, Callu P, Grosjean F, Oswald IP, Bracarense APF. Deoxynivalenol alone or in combination with nivalenol and zearalenone induce systemic histological changes in pigs. ACTA ACUST UNITED AC 2015; 67:89-98. [DOI: 10.1016/j.etp.2014.10.001] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Revised: 09/22/2014] [Accepted: 10/20/2014] [Indexed: 02/04/2023]
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112
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Wu K, Liu X, Fang M, Wu Y, Gong Z. Zearalenone induces oxidative damage involving Keap1/Nrf2/HO-1 pathway in hepatic L02 cells. Mol Cell Toxicol 2015. [DOI: 10.1007/s13273-014-0050-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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113
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Han J, Wang T, Fu L, Shi LY, Zhu CC, Liu J, Zhang Y, Cui XS, Kim NH, Sun SC. Altered oxidative stress, apoptosis/autophagy, and epigenetic modifications in Zearalenone-treated porcine oocytes. Toxicol Res (Camb) 2015. [DOI: 10.1039/c5tx00070j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ZEN affected porcine oocyte maturation and early embryonic development. Oxidative stress, autophagy and apoptosis occurred. Aberrant epigenetic modifications were also observed.
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Affiliation(s)
- Jun Han
- College of Animal Science and Technology
- Nanjing Agricultural University
- Nanjing 210095
- China
| | - Ting Wang
- College of Animal Science and Technology
- Nanjing Agricultural University
- Nanjing 210095
- China
| | - Le Fu
- College of Animal Science and Technology
- Nanjing Agricultural University
- Nanjing 210095
- China
| | - Liang-Yu Shi
- College of Animal Science and Technology
- Nanjing Agricultural University
- Nanjing 210095
- China
| | - Cheng-Cheng Zhu
- College of Animal Science and Technology
- Nanjing Agricultural University
- Nanjing 210095
- China
| | - Jun Liu
- College of Animal Science and Technology
- Nanjing Agricultural University
- Nanjing 210095
- China
| | - Yu Zhang
- College of Animal Science and Technology
- Nanjing Agricultural University
- Nanjing 210095
- China
| | - Xiang-Shun Cui
- Department of Animal Sciences
- Chungbuk National University
- Cheongju
- Korea
| | - Nam-Hyung Kim
- Department of Animal Sciences
- Chungbuk National University
- Cheongju
- Korea
| | - Shao-Chen Sun
- College of Animal Science and Technology
- Nanjing Agricultural University
- Nanjing 210095
- China
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114
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Heidari S, Milani J, Nazari SSSJ. Effect of the bread-making process on zearalenone levels. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2014; 31:2047-54. [PMID: 25291600 DOI: 10.1080/19440049.2014.972472] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The effects of the bread-making process including fermentation with Saccharomyces cerevisiae and lactic acid bacteria (Lactobacillus casei, Lactobacillus rhamnosus, Lactobacillus acidophilus and Lactobacillus fermentum) and baking at 200°C on zearalenone (ZEA) levels were investigated. Standard solutions of ZEA were added to flour and then loaves of bread were prepared. Sourdough and three types of yeast including active dry yeast, instant dry yeast and compressed yeast were used for the fermentation of dough. ZEA levels in flour, dough and bread were determined by HPLC with fluorescence detection after extraction and clean-up on an immunoaffinity column. The highest reduction in levels of ZEA was found in the first fermentation (first proof), while the lowest reduction was observed in the baking stage. In addition, the results showed that compressed yeast had the maximum reduction potential on ZEA levels even at the baking stage.
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Affiliation(s)
- Sara Heidari
- a Department of Food Science & Technology , Sari Agricultural Sciences and Natural Resources University (SANRU) , Sari , Iran
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115
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Lautert C, Ferreiro L, Wolkmer P, Paim FC, da Silva CB, Jaques JAS, Lopes STA, Santurio JM. Individual in vitro effects of ochratoxin A, deoxynivalenol and zearalenone on oxidative stress and acetylcholinesterase in lymphocytes of broiler chickens. SPRINGERPLUS 2014; 3:506. [PMID: 25279298 PMCID: PMC4169786 DOI: 10.1186/2193-1801-3-506] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Accepted: 09/03/2014] [Indexed: 02/01/2023]
Abstract
The contamination of consumer food and animal feed with toxigenic fungi has resulted in economic losses worldwide in animal industries. Mycotoxins are highly biologically reactive secondary metabolites and can inhibit protein synthesis and cell multiplication. Considering the cytotoxicity of mycotoxins, this experiment was performed to determine the in vitro influence of ochratoxin A, deoxynivalenol and zearalenone on lipid peroxidation in lymphocytes of broiler chickens at different concentrations. This study has also evaluated whether the presence of these mycotoxins changes the acetylcholinesterase activity in lymphocytes, which is involved in the regulation of immune and inflammatory responses. Blood lymphocytes of broiler chickens were isolated through density gradient centrifugation and incubated with the respective mycotoxins at concentrations of 0.001, 0.01, 0.1 and 1 μg/mL. Lipid peroxidation, which was evaluated through the amount of malondialdehyde measured in a thiobarbituric acid-reactive species test, and the enzymatic activity were analyzed at 24, 48 and 72 h. Results of the lipid peroxidation evaluation showed an increasing cytotoxicity relation: ochratoxin A > deoxynivalenol > zearalenone. Conversely, cytotoxicity was valued as zearalenone > deoxynivalenol > ochratoxin A in relation to the acetylcholinesterase enzymatic activity. At a concentration of 1 μg/mL, ochratoxin A and deoxynivalenol induced the highest cellular oxidative stress levels and the highest enzymatic activity at the majority of time points. However, the same mycotoxins, except at 1 μg/mL concentration, induced a reduction of lymphocytic lipid peroxidation 72 h after incubation, suggesting the action of a compensatory mechanism in these cells.
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Affiliation(s)
- Claudia Lautert
- />Setor de Micologia, Faculdade de Veterinária (FAVET), Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 9090, 91540-000 Porto Alegre, RS Brasil
| | - Laerte Ferreiro
- />Setor de Micologia, Faculdade de Veterinária (FAVET), Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 9090, 91540-000 Porto Alegre, RS Brasil
| | - Patrícia Wolkmer
- />Curso de Medicina Veterinária, Universidade de Cruz Alta (UNICRUZ), Campus Universitário Dr. Ulysses Guimarães - Rodovia Municipal Jacob Della Méa, Km 5.6, 98020-290 Cruz Alta, RS Brasil
| | - Francine C Paim
- />Laboratório de Análises Clínicas Veterinário (LACVET), Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 1000, Cidade Universitária, Bairro Camobi, 97105-900 Santa Maria, RS Brasil
| | - Cássia B da Silva
- />Laboratório de Análises Clínicas Veterinário (LACVET), Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 1000, Cidade Universitária, Bairro Camobi, 97105-900 Santa Maria, RS Brasil
| | - Jeandre AS Jaques
- />Universidade Federal de Mato Grosso do Sul (UFMS), Cidade Universitária, 79070-900 Campo Grande, MS Brasil
| | - Sônia TA Lopes
- />Laboratório de Análises Clínicas Veterinário (LACVET), Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 1000, Cidade Universitária, Bairro Camobi, 97105-900 Santa Maria, RS Brasil
| | - Janio M Santurio
- />Departamento de Microbiologia e Parasitologia, Laboratório de Pesquisas Micológicas (LAPEMI), Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 1000, Cidade Universitária, Bairro Camobi, 97105-900 Santa Maria, RS Brasil
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116
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Liu M, Gao R, Meng Q, Zhang Y, Bi C, Shan A. Toxic effects of maternal zearalenone exposure on intestinal oxidative stress, barrier function, immunological and morphological changes in rats. PLoS One 2014; 9:e106412. [PMID: 25180673 PMCID: PMC4152245 DOI: 10.1371/journal.pone.0106412] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Accepted: 08/06/2014] [Indexed: 01/25/2023] Open
Abstract
The present study was conducted to investigate the effects of maternal zearalenone (ZEN) exposure on the intestine of pregnant Sprague-Dawley (SD) rats and its offspring. Ninety-six pregnant SD rats were randomly divided into four groups and were fed with diets containing ZEN at concentrations of 0.3 mg/kg, 48.5 mg/kg, 97.6 mg/kg or 146.0 mg/kg from gestation days (GD) 1 to 7. All rats were fed with mycotoxin-free diet until their offspring were weaned at three weeks of age. The small intestinal fragments from pregnant rats at GD8, weaned dams and pups were collected and studied for toxic effects of ZEN on antioxidant status, immune response, expression of junction proteins, and morphology. The results showed that ZEN induced oxidative stress, affected the villous structure and reduced the expression of junction proteins claudin-4, occludin and connexin43 (Cx43) in a dose-dependent manner in pregnant rats. Different effects on the expression of cytokines were also observed both in mRNA and protein levels in these pregnant groups. Ingestion of high levels of ZEN caused irreversible damage in weaned dams, such as oxidative stress, decreased villi hight and low expression of junction proteins and cytokines. Decreased expression of jejunal interleukin-8 (IL-8) and increased expression of gastrointestinal glutathione peroxidase (GPx2) mRNA were detected in weaned offspring, indicating long-term damage caused by maternal ZEN. We also found that the Nrf2 expression both in mRNA and protein levels were up-regulated in the ZEN-treated groups of pregnant dams and the high-dose of ZEN group of weaned dams. The data indicate that modulation of Nrf2-mediated pathway is one of mechanism via which ZEN affects gut wall antioxidant and inflammatory responses.
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Affiliation(s)
- Min Liu
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, P. R. China
| | - Rui Gao
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, P. R. China
| | - Qingwei Meng
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, P. R. China
| | - Yuanyuan Zhang
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, P. R. China
| | - Chongpeng Bi
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, P. R. China
| | - Anshan Shan
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, P. R. China
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Zhu CC, Hou YJ, Han J, Liu HL, Cui XS, Kim NH, Sun SC. Effect of mycotoxin-containing diets on epigenetic modifications of mouse oocytes by fluorescence microscopy analysis. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2014; 20:1158-1166. [PMID: 24810297 DOI: 10.1017/s1431927614000919] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Mycotoxins, such as aflatoxin (AF), fumonisin B1, zearalenone (ZEA), and deoxynivalenol (DON), are commonly found in many food commodities. Mycotoxins have been shown to increase DNA methylation levels in a human intestinal cell line. We previously showed that the developmental competence of oocytes was affected in mice that had been fed a mycotoxin-containing diet. In this study, we explored possible mechanisms of low mouse oocyte developmental competence after mycotoxin treatment in an epigenetic modification perspective. Mycotoxin-contaminated maize (DON at 3,875 μg/kg, ZEA at 1,897 μg/kg, and AF at 806 μg/kg) was included in diets at three different doses (mass percentage: 0, 15, and 30%) and fed to mice for 4 weeks. The fluorescence intensity analysis showed that the general DNA methylation levels increased in oocytes from high dose mycotoxin-fed mice. Mouse oocyte histone methylation was also altered. H3K9me3 and H4K20me3 level increased in oocytes from mycotoxin-fed mice, whereas H3K27me3 and H4K20me2 level decreased in oocytes from mycotoxin-fed mice. Thus, our results indicate that naturally occurring mycotoxins have effects on epigenetic modifications in mouse oocytes, which may be one of the reasons for reduced oocyte developmental competence.
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Affiliation(s)
- Cheng-Cheng Zhu
- 1College of Animal Science and Technology,Nanjing Agricultural University,Nanjing 210095,China
| | - Yan-Jun Hou
- 1College of Animal Science and Technology,Nanjing Agricultural University,Nanjing 210095,China
| | - Jun Han
- 1College of Animal Science and Technology,Nanjing Agricultural University,Nanjing 210095,China
| | - Hong-Lin Liu
- 1College of Animal Science and Technology,Nanjing Agricultural University,Nanjing 210095,China
| | - Xiang-Shun Cui
- 2Department of Animal Sciences,Chungbuk National University,Cheongju 361-763,Korea
| | - Nam-Hyung Kim
- 2Department of Animal Sciences,Chungbuk National University,Cheongju 361-763,Korea
| | - Shao-Chen Sun
- 1College of Animal Science and Technology,Nanjing Agricultural University,Nanjing 210095,China
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Mitochondrial proteomic analysis reveals the molecular mechanisms underlying reproductive toxicity of zearalenone in MLTC-1 cells. Toxicology 2014; 324:55-67. [PMID: 25058043 DOI: 10.1016/j.tox.2014.07.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 07/03/2014] [Accepted: 07/18/2014] [Indexed: 02/07/2023]
Abstract
Zearalenone (ZEA), a Fusarium mycotoxin that contaminates cereal crops worldwide, has been shown to affect the male reproductive system and trigger reactive oxygen species (ROS) generation. However, the mechanisms of its toxicity have not been fully understood. Because mitochondrion is a key organelle involved in producing ROS and generating metabolic intermediates for biosynthesis, an iTRAQ-based mitoproteomics approach was employed to identify the molecular mechanism of zearalenone toxicity using mitochondria of mouse Leydig tumor cells (MLTC-1). A total of 2014 nonredundant proteins were identified, among which 1401 proteins (69.56%) were overlapped. There were 52 differentially expressed proteins in response to ZEA, and they were primarily involved in energy metabolism, molecular transport and endocrine-related functions. Consistent with mitochondrial proteomic analysis, the ATP and intracellular Ca(2+) levels increased after ZEA treatment. The results suggest that lipid metabolism changed significantly after low-dose ZEA exposure, resulting in two alterations. One is the increase in energy production through promoted fatty acid uptake and β-oxidation, along with excessive oxidative stress; the other is an inhibition of steroidogenesis and esterification, possibly resulting in reduced hormone secretion. A hypothetical model of ZEA-induced mitochondrial damage is proposed to provide a framework for the mechanism of ZEA toxicity.
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119
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Mohapatra DK, Reddy DS, Mallampudi NA, Yadav JS. Stereoselective Total Syntheses of Paecilomycins E and F through a Protecting Group Directed Diastereoselective Intermolecular Nozaki-Hiyama-Kishi (NHK) Reaction. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402133] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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120
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Pietsch C, Noser J, Wettstein FE, Burkhardt-Holm P. Unraveling the mechanisms involved in zearalenone-mediated toxicity in permanent fish cell cultures. Toxicon 2014; 88:44-61. [PMID: 24950048 DOI: 10.1016/j.toxicon.2014.06.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2014] [Revised: 05/30/2014] [Accepted: 06/10/2014] [Indexed: 11/29/2022]
Abstract
The world-wide occurrence of zearalenone (ZEN) as a contaminant in feed for farm animals and fish requires the evaluation of toxicity mechanisms of action of ZEN. The present study investigates possible metabolization of ZEN in fish cell lines suggesting that mainly glucuronidation takes place. It demonstrates that concentrations up to 20,000 ng ml(-1) ZEN are capable of influencing cell viability in permanent fish cell cultures in a dose-response manner with different response patterns between the five tested cell lines, whereby lysosomes appeared to be the main target of ZEN. ZEN toxicity is often discussed in the context of oxidative stress. Our study shows a biphasic response of the cell lines when reactive oxygen species (ROS) production is monitored. Damage in cells was observed by measuring lipid peroxidation, DNA strand breaks, and alterations of intracellular glutathione levels. Metabolization of ZEN, especially at concentrations above 7500 ng ml(-1) ZEN, does not prevent cytotoxicity. ZEN as an estrogenic compound may involve processes mediated by binding to estrogen receptors (ER). Since one cell line showed no detectable expression of ER, an ER-mediated pathway seems to be unlikely in these cells. This confirms a lysosomal pathway as a main target of ZEN in fish cells.
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Affiliation(s)
- Constanze Pietsch
- Zurich University of Applied Sciences (ZHAW), Institute of Natural Resource Sciences (IUNR), Gruental, P.O. Box, CH-8820 Waedenswil, Switzerland; Programm Man - Society - Environment, Department of Environmental Sciences, University of Basel, Vesalgasse 1, CH-4051 Basel, Switzerland.
| | - Jürg Noser
- Kantonales Laboratorium Basel, Gräubernstrasse 12, CH-4410 Liestal, Switzerland
| | - Felix E Wettstein
- Agroscope Reckenholz-Tänikon (ART), Research Station ART, Reckenholzstrasse 191, CH-8046 Zürich, Switzerland
| | - Patricia Burkhardt-Holm
- Programm Man - Society - Environment, Department of Environmental Sciences, University of Basel, Vesalgasse 1, CH-4051 Basel, Switzerland; Department of Biological Sciences, University of Alberta, CW 405 Biological Sciences Building, T6G 2E9, Edmonton, AB, Canada
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121
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Jiang S, Li Z, Wang G, Yang Z, Yang W, Zhang G, Wu Y. Effects of Fusarium mycotoxins with yeast cell wall absorbent on hematology, serum biochemistry, and oxidative stress in broiler chickens. J APPL POULTRY RES 2014. [DOI: 10.3382/japr.2013-00830] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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122
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So MY, Tian Z, Phoon YS, Sha S, Antoniou MN, Zhang J, Wu RSS, Tan-Un KC. Gene expression profile and toxic effects in human bronchial epithelial cells exposed to zearalenone. PLoS One 2014; 9:e96404. [PMID: 24788721 PMCID: PMC4008614 DOI: 10.1371/journal.pone.0096404] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 04/05/2014] [Indexed: 01/24/2023] Open
Abstract
Zearalenone (ZEA), a mycoestrogen produced by Fusarium fungal species, is mainly found in cereal crops such as maize, wheat and barley. Although ZEA has been reported to be present in air, little is known about the health risk or the molecular basis of action when lung cells are exposed to ZEA. As ZEA has a similar structure to estrogen, its potential risk as an endocrine disrupting chemical (EDC) has thus aroused both environmental and public health concerns. The purpose of this study is to identify the responses and underlying molecular changes that occur when human bronchial epithelial BEAS-2B cells are exposed to ZEA. Differential gene expression profiles were identified in cells that were treated with 40 µM ZEA for 6 h and 24 h by high-throughput microarray analysis using Affymetrix Human Gene 2.0 GeneChip. The array results showed that after ZEA treatment, 262 genes at 6 h and 1073 genes at 24 h were invovled in the differential regulation. Pathway analysis revealed that diverse cellular processes were affected when lung cells were exposed to ZEA resulting in impaired response to DNA damage, cell cycle arrest, down-regulation of inflammatory responses and alterations of epigenetic marks. Results of further experiments indicated that 40 µM ZEA decreased cell viability, induced apoptosis and promoted reactive oxygen species (ROS) generation in a time-dependent manner. Immuno-suppressive effects of ZEA were further revealed through the suppression of lipopolysaccharide (LPS)-induced expression of pro-inflammatory cytokines (IL-6, IL-8 and IL-1β). Interestingly, the level of global DNA methylation was markedly decreased after 24 h exposure to ZEA. Collectively, these observations suggested that a broad range of toxic effects are elicited by ZEA. Particularly, ROS may play a pivotal role in ZEA-induced cell death. These adverse effects observed in lung cells suggest that exposure to ZEA may increase susceptibility of lung cells to diseases and required further investigations.
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Affiliation(s)
- Mei Yu So
- School of Biological Sciences, The University of Hong Kong, Hong Kong SAR, China
| | - ZhiPeng Tian
- School of Biological Sciences, The University of Hong Kong, Hong Kong SAR, China
- School of Professional and Continuing Education, The University of Hong Kong, Hong Kong SAR, China
| | - Yong Shian Phoon
- School of Biological Sciences, The University of Hong Kong, Hong Kong SAR, China
| | - Sha Sha
- School of Biological Sciences, The University of Hong Kong, Hong Kong SAR, China
| | - Michael N. Antoniou
- Department of Medical and Molecular Genetics, Gene Expression and Therapy Group, King's College London School of Medicine, Guy's Hospital, London, United Kingdom
| | - JiangWen Zhang
- School of Biological Sciences, The University of Hong Kong, Hong Kong SAR, China
| | - Rudolf S. S. Wu
- School of Biological Sciences, The University of Hong Kong, Hong Kong SAR, China
| | - Kian C Tan-Un
- School of Biological Sciences, The University of Hong Kong, Hong Kong SAR, China
- School of Professional and Continuing Education, The University of Hong Kong, Hong Kong SAR, China
- * E-mail: address:
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123
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Yin S, Zhang Y, Gao R, Cheng B, Shan A. The immunomodulatory effects induced by dietary Zearalenone in pregnant rats. Immunopharmacol Immunotoxicol 2014; 36:187-94. [PMID: 24754511 DOI: 10.3109/08923973.2014.909847] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONTEXT Zearalenone (ZEN) is a common contaminant that is present in feedstuff of high humidity and high temperatures. OBJECTIVE The aim of this study was to investigate the effects of diets contaminated with different concentrations of ZEN on immunomodulation in early pregnant rats. MATERIALS AND METHODS Forty-eight pregnant Sprague Dawley (SD) rats were randomly divided into four treatment groups fed on a diet supplemented with one of four concentrations of ZEN: 0 mg/kg (ZEN 0), 50 mg/kg (ZEN 50), 100 mg/kg (ZEN 100) and 150 mg/kg (ZEN 150). The pregnant rats were fed ZEN-treated diets from gestation days 0 to 7 and a basal diet from gestation days 8 to 20. RESULTS ZEN exposure (ZEN 100 and 150) caused significant decreases in splenic coefficients, viability of splenocyte and T-cell proliferation and induced histopathological damage in the spleen of early pregnant rats compared with other groups. Levels of IgG and IgA were decreased, while IgM was increased, in high doses of ZEN (ZEN 100 and ZEN 150) compared with other groups. ZEN 150 caused increases in white blood cells and hemoglobin and induced a significant decrease in platelets in blood of the pregnant rats compared with other groups. ZEN 150 increased the mRNA expression levels of interleukin (IL)-6, IL-18 and IL-1β and decreased the mRNA expression levels of interferon-γ, tumor necrosis factor-α and IL-10 in the spleen of pregnant rats compared with ZEN 0. CONCLUSION High doses of ZEN-induced immunomodulatory effects on early pregnant rats by altering immunological parameters.
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Affiliation(s)
- Shutong Yin
- Institute of Animal Nutrition, Northeast Agricultural University , Harbin , P.R. China
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Zhou C, Zhang Y, Yin S, Jia Z, Shan A. Biochemical changes and oxidative stress induced by zearalenone in the liver of pregnant rats. Hum Exp Toxicol 2014; 34:65-73. [DOI: 10.1177/0960327113504972] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The aim of the present research was to examine the toxic influence of different doses of zearalenone (ZEN) on the liver, especially oxidative stress induced by ZEN on the liver. A total of 48 pregnant Sprague-Dawley rats were randomly assigned into 4 treatments groups with 12 animals in each. The rats were fed with a normal diet treated with 0 mg/kg (control), 50 mg/kg (treatment 1), 100 mg/kg (treatment 2), or 150 mg/kg (treatment 3) ZEN in feed on gestation days (GDs) 0–7 and then all the rats were fed with a normal diet on GDs 8–20. The experimental period lasted 21 days. The results showed that exposure to ZEN induced increase in aspartate amino transferase, alanine aminotransferase, and alkaline phosphatase activities and decrease in total protein and albumin content in a dose-dependent manner and also induce decrease in superoxide dismutase and glutathione peroxidase activities and increase in malondialdehyde content in a dose-dependent manner in the serum and the liver. The increased transcription of cytochrome P450 2E1 (CYP2E1) was detected in the liver after exposure to ZEN. These results suggested that ZEN not only caused damage in the liver of pregnant rats in a dose-dependent manner but also induced the messenger RNA expression of CYP2E1 in the liver.
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Affiliation(s)
- C Zhou
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, People’s Republic of China
| | - Y Zhang
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, People’s Republic of China
| | - S Yin
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, People’s Republic of China
| | - Z Jia
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, People’s Republic of China
| | - A Shan
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, People’s Republic of China
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125
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Vázquez-Durán A, Díaz-Torres R, Ramírez-Noguera P, Moreno-Martínez E, Méndez-Albores A. Cytotoxic and genotoxic evaluation of tortillas produced by microwave heating during alkaline-cooking of aflatoxin-contaminated maize. J Food Sci 2014; 79:T1024-9. [PMID: 24689855 DOI: 10.1111/1750-3841.12426] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Accepted: 02/01/2014] [Indexed: 11/26/2022]
Abstract
UNLABELLED In vitro cytotoxicity and genotoxicity induction by aflatoxin B1 (AFB1) from maize (ME) and tortillas (TE) produced by microwave nixtamalization were investigated in monkey kidney (Vero cells) using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, the induction of lipid peroxidation, the oxidative damage by means of glutathione (GSH) depletion, and the Salmonella-microsomal screening system (Ames test). Our results showed that, at higher concentrations, both ME and TE extracts that contained varying amounts of aflatoxin caused a considerable decrease in Vero cell viability (up to 37%) after 4 h of exposure. Aflatoxins from ME induced greater oxidative damage by enhancing lipid peroxidation (up to 6.05 ± 0.14 μmol/mg protein) as compared to TE; however, TE also induced significant malondialdehyde formation in particular at the higher aflatoxin concentration tested (up to 2.7 ± 0.19 μmol/mg protein). The decrease in GSH level was also more pronounced in ME as compared to TE. Moreover, the Ames test results indicated that the mutagenic activity of TE was greatly reduced compared with that of ME based on his(-) → his(+) reversions in the Salmonella TA100 strain. According to these results, it is concluded that the microwave nixtamalization procedure reduced aflatoxins and their in vitro toxicity and mutagenic activity. PRACTICAL APPLICATION In Mexico, aflatoxins are often found in maize destined for the tortilla industry; consequently, tortilla consumption invariably leads to an important intake of intact and/or modified aflatoxin molecules caused by the thermal-alkaline treatment used during production. Therefore, it is of the highest importance to check whether such intake has the potential to lead to higher risk for adverse human health effects. In view of these considerations, in vitro tests may thus be useful for predicting the potential cytotoxicity and genotoxicity of tortillas produced for human consumption using aflatoxin-contaminated maize.
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Affiliation(s)
- Alma Vázquez-Durán
- UANL-FA, Agropecuary Sciences Campus (Food Industries Research Center), Francisco Villa s/n, General Escobedo, Nuevo Leon, Mexico
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Liu Q, Wang Y, Gu J, Yuan Y, Liu X, Zheng W, Huang Q, Liu Z, Bian J. Zearalenone inhibits testosterone biosynthesis in mouse Leydig cells via the crosstalk of estrogen receptor signaling and orphan nuclear receptor Nur77 expression. Toxicol In Vitro 2014; 28:647-56. [PMID: 24512812 DOI: 10.1016/j.tiv.2014.01.013] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Revised: 01/20/2014] [Accepted: 01/30/2014] [Indexed: 10/25/2022]
Abstract
Zearalenone (ZEA) directly inhibits testosterone biosynthesis in Leydig cells, although the mechanisms involved remains unclear. Various experiments were performed to elucidate the molecular pathway of ZEA-mediated androgen inhibition. Leydig cells were isolated from 6 week-old male ICR mice and subjected to ZEA pre-treatment. The levels of testosterone and a series of influncing factors were measured. The results showed that ZEA caused a concentration- and time-dependent inhibition of testosterone stimulated both by hCG and cAMP (P<0.05). Exposure to ZEA did not affect the LHR binding activity nor the protein expression (P>0.05). However, ZEA exposure significantly elevated the cellular cAMP levels (P<0.05) in low concentrations (5 μg/ml) or for long time periods (24 h), significantly reduce the mitochondrial membrane potential (P<0.05). The expression of P450scc, 17β-HSD, and P450c17 at the mRNA level were significantly decreased (P<0.05). The steroidogenic acute regulatory (StAR) and 3β-HSD expression was significantly increased (P<0.05). Furthermore, the ERα protein expression was not affected by ZEA, but Nur77 expression was significantly inhibited (P<0.05). These observations imply that ZEA activity interferes with testosterone biosynthesis in mouse Leydig cells via the crosstalk of estrogen receptor signaling and Nur77 expression.
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Affiliation(s)
- Qing Liu
- College of Veterinary Medicine, Yangzhou University, 12 East, Wenhui Road, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Yajun Wang
- College of Veterinary Medicine, Yangzhou University, 12 East, Wenhui Road, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Jianhong Gu
- College of Veterinary Medicine, Yangzhou University, 12 East, Wenhui Road, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Yan Yuan
- College of Veterinary Medicine, Yangzhou University, 12 East, Wenhui Road, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Xuezhong Liu
- College of Veterinary Medicine, Yangzhou University, 12 East, Wenhui Road, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Wanglong Zheng
- College of Veterinary Medicine, Yangzhou University, 12 East, Wenhui Road, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Qinyi Huang
- College of Veterinary Medicine, Yangzhou University, 12 East, Wenhui Road, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Zongping Liu
- College of Veterinary Medicine, Yangzhou University, 12 East, Wenhui Road, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Jianchun Bian
- College of Veterinary Medicine, Yangzhou University, 12 East, Wenhui Road, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China.
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Li T, Kim BB, Shim WB, Byun JY, Chung DH, Shin YB, Kim MG. Homogeneous Fluorescence Resonance Energy Transfer Immunoassay for the Determination of Zearalenone. ANAL LETT 2014. [DOI: 10.1080/00032719.2013.843186] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Kang C, Lee H, Yoo YS, Hah DY, Kim CH, Kim E, Kim JS. Evaluation of Oxidative DNA Damage Using an Alkaline Single Cell Gel Electrophoresis (SCGE) Comet Assay, and the Protective Effects of N-Acetylcysteine Amide on Zearalenone-induced Cytotoxicity in Chang Liver Cells. Toxicol Res 2013; 29:43-52. [PMID: 24278628 PMCID: PMC3834442 DOI: 10.5487/tr.2013.29.1.043] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Revised: 02/22/2013] [Accepted: 03/21/2013] [Indexed: 11/20/2022] Open
Abstract
Zearalenone (ZEN) is a non-steroidal estrogenic mycotoxin produced by several species of Fusarium that are found in cereals and agricultural products. ZEN has been implicated in mycotoxicosis in farm animals and in humans. The toxic effects of ZEN are well known, but the ability of an alkaline Comet assay to assess ZEN-induced oxidative DNA damage in Chang liver cells has not been established. The first aim of this study was to evaluate the Comet assay for the determination of cytotoxicity and extent of DNA damage induced by ZEN toxin, and the second aim was to investigate the ability of N-acetylcysteine amide (NACA) to protect cells from ZEN-induced toxicity. In the Comet assay, DNA damage was assessed by quantifying the tail extent moment (TEM; arbitrary unit) and tail length (TL; arbitrary unit), which are used as indicators of DNA strand breaks in SCGE. The cytotoxic effects of ZEN in Chang liver cells were mediated by inhibition of cell proliferation and induction of oxidative DNA damage. Increasing the concentration of ZEN increased the extent of DNA damage. The extent of DNA migration, and percentage of cells with tails were significantly increased in a concentration-dependent manner following treatment with ZEN toxin (p < 0.05). Treatment with a low concentration of ZEN toxin (25 μM) induced a relatively low level of DNA damage, compared to treatment of cells with a high concentration of ZEN toxin (250 μM). Oxidative DNA damage appeared to be a key determinant of ZEN-induced toxicity in Chang liver cells. Significant reductions in cytolethality and oxidative DNA damage were observed when cells were pretreated with NACA prior to exposure to any concentration of ZEN. Our data suggest that ZEN induces DNA damage in Chang liver cells, and that the antioxidant activity of NACA may contribute to the reduction of ZEN-induced DNA damage and cytotoxicity via elimination of oxidative stress.
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Affiliation(s)
- Changgeun Kang
- Department of Pharmacology & Toxicology, College of Veterinary Medicine, Gyeongsang National University, Jinju, Korea
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Liu G, Yan T, Wang J, Huang Z, Chen X, Jia G, Wu C, Zhao H, Xue B, Xiao L, Tang J. Biological system responses to zearalenone mycotoxin exposure by integrated metabolomic studies. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:11212-11221. [PMID: 24164354 DOI: 10.1021/jf403401v] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This study aims to investigate the effect of zearalenone supplementation on rat metabolism. Rats received biweekly intragastric administration of zearalenone mycotoxin (3 mg/kg body weight) for 2 weeks. Urine and plasma samples after zearalenone administration were analyzed by NMR-based metabolomics. Zearalenone exposure significantly elevated the plasma levels of glucose, lactate, N-acetyl glycoprotein, O-acetyl glycoprotein, and propionate but reduced the plasma levels of tyrosine, branched-chain amino acids, and choline metabolites. Zearalenone supplementation decreased the urine levels of butyrate, lactate, and nicotinate. However, it increased the urine levels of allantoin, choline, and N-methylnicotinamide at 0-8 h after the last zearalenone administration and those of 1-methylhistidine, acetoacetate, acetone, and indoxyl sulfate at 8-24 h after the last zearalenone administration. These results suggest that zearalenone exposure can cause oxidative stress and change common systemic metabolic processes, including cell membrane metabolism, protein biosynthesis, glycolysis, and gut microbiota metabolism.
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Affiliation(s)
- Guangmang Liu
- Institute of Animal Nutrition, Sichuan Agricultural University , Chengdu 611130, Sichuan, China
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132
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Regulation of cytotoxic, non-estrogenic, oxidative stress-induced processes of zearalenone in the fission yeast Schizosaccharomyces pombe. Toxicon 2013; 73:130-43. [DOI: 10.1016/j.toxicon.2013.07.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 07/15/2013] [Accepted: 07/18/2013] [Indexed: 02/02/2023]
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133
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Gazzah AC, Camoin L, Abid S, Bouaziz C, Ladjimi M, Bacha H. Identification of proteins related to early changes observed in Human hepatocellular carcinoma cells after treatment with the mycotoxin Zearalenone. ACTA ACUST UNITED AC 2013; 65:809-16. [DOI: 10.1016/j.etp.2012.11.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Revised: 11/07/2012] [Accepted: 11/22/2012] [Indexed: 01/24/2023]
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134
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Lee H, Kang C, Yoo YS, Hah DY, Kim CH, Kim E, Kim JS. Cytotoxicity and the induction of the stress protein Hsp 70 in Chang liver cells in response to zearalenone-induced oxidative stress. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2013; 36:732-740. [PMID: 23917164 DOI: 10.1016/j.etap.2013.06.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Revised: 06/11/2013] [Accepted: 06/15/2013] [Indexed: 06/02/2023]
Abstract
Zearalenone (ZEN) has been implicated in several cases of mycotoxicosis in farm animals and humans. The toxic effects of ZEN have been well characterized, but little is known regarding the mechanisms of ZEN toxicity, including the involvement of the oxidative stress pathway. Using Chang liver cells as a model, the aim of this study was to determine if ZEN could elevate the expression of the heat shock protein Hsp 70, induce cytotoxicity and modulate the levels of glutathione (GSH) and thiobarbituric acid reactive substance (TBARS). In addition, the cytoprotective effects of N-acetylcysteine amide (NACA) pre-treatment were assessed. Finally, the involvement of oxidative stress in ZEN-induced toxicity was confirmed. The results of this study demonstrated that ZEN-induced Hsp 70 expression in a dose- and time-dependent manners. This effect occurred at low-ZEN concentrations, and could therefore be considered a biomarker of ZEN-induced toxicity. The cytotoxicity was reduced when Chang liver cells were exposed to sub-lethal heat shock prior to ZEN treatment, demonstrating a cytoprotective effect of Hsp 70. This cytoprotective effect suggested that Hsp 70 might play a key role in the cellular defense mechanism. When cells were pre-treated with NACA prior to ZEN treatment, the cells were also protected from toxicity. This NACA cytoprotective effect suggested the involvement of oxidative stress in ZEN-induced toxicity, and this mechanism was supported by reduced Hsp 70 expression, inhibited cytolethality, increased GSH levels and decreased TBARS formation when cells were pre-treated with NACA prior to ZEN exposure. Our data clearly demonstrated that ZEN induced cytotoxicity in Chang liver cells by inhibiting cell proliferation, decreasing GSH levels and increasing TBARS formation in a dose-dependent manner. ZEN also, induced Hsp 70 expression, and the side effects of ZEN were significantly alleviated by pre-treatment with NACA. Oxidative stress is likely to be one of the primary pathways of ZEN toxicity. This oxidative stress may contribute, at least in part, to the mechanism of ZEN-induced cytotoxicity.
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Affiliation(s)
- Hyungkyoung Lee
- Department of Pharmacology & Toxicology, College of Veterinary Medicine, Gyeongsang National University, Jinju Dae-lo 501, Jinju 660-701, Republic of Korea
| | - Changgeun Kang
- Department of Pharmacology & Toxicology, College of Veterinary Medicine, Gyeongsang National University, Jinju Dae-lo 501, Jinju 660-701, Republic of Korea
| | - Yong-San Yoo
- Department of Pharmacology & Toxicology, College of Veterinary Medicine, Gyeongsang National University, Jinju Dae-lo 501, Jinju 660-701, Republic of Korea
| | - Do-Yun Hah
- Gyeongnam Livestock Promotion Research Institute, Chojengbuk-lo 104, Jinju 660-985, Gyeongnam, Republic of Korea
| | - Chung Hui Kim
- Department of Animal Science and Biotechnology, Gyeongnam National University of Science and Technology, Jinju 660-758, Republic of Korea
| | - Euikyung Kim
- Department of Pharmacology & Toxicology, College of Veterinary Medicine, Gyeongsang National University, Jinju Dae-lo 501, Jinju 660-701, Republic of Korea
| | - Jong Shu Kim
- Department of Pharmacology & Toxicology, College of Veterinary Medicine, Gyeongsang National University, Jinju Dae-lo 501, Jinju 660-701, Republic of Korea.
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135
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Natural feed contaminant zearalenone decreases the expressions of important pro- and anti-inflammatory mediators and mitogen-activated protein kinase/NF-κB signalling molecules in pigs. Br J Nutr 2013; 111:452-64. [DOI: 10.1017/s0007114513002675] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Zearalenone (ZEA) is an oestrogenic mycotoxin produced byFusariumspecies, considered to be a risk factor from both public health and agricultural perspectives. In the presentin vivostudy, a feeding trial was conducted to evaluate thein vivoeffect of a ZEA-contaminated diet on immune response in young pigs. The effect of ZEA on pro-inflammatory (TNF-α, IL-8, IL-6, IL-1β and interferon-γ) and anti-inflammatory (IL-10 and IL-4) cytokines and other molecules involved in inflammatory processes (matrix metalloproteinases (MMP)/tissue inhibitors of matrix metalloproteinases (TIMP), nuclear receptors: PPARγ and NF-κB1, mitogen-activated protein kinases (MAPK): mitogen-activated protein kinase kinase kinase 7 (TAK1)/mitogen-activated protein kinase 14 (p38α)/mitogen-activated protein kinase 8 (JNK1)/ mitogen-activated protein kinase 9 (JNK2)) in the liver of piglets was investigated. The present results showed that a concentration of 316 parts per billion ZEA leads to a significant decrease in the levels of pro- and anti-inflammatory cytokines at both gene expression and protein levels, correlated with a decrease in the levels of other inflammatory mediators, MMP and TIMP. The results also showed that dietary ZEA induces a dramatic reduction in the expressions ofNF-κB1andTAK1/p38αMAPK genes in the liver of the experimentally intoxicated piglets, and has no effect on the expression ofPPARγmRNA. The present results suggest that the toxic action of ZEA begins in the upstream of the MAPK signalling pathway by the inhibition of TAK1, a MAPK/NF-κB activator. In conclusion, the present study shows that ZEA alters several important parameters of the hepatic cellular immune response. From an economic point of view, these data suggest that, in pigs, ZEA is not only a powerful oestrogenic mycotoxin but also a potential hepatotoxin when administered through the oral route. Therefore, the present results represent additional data from cellular and molecular levels that could be taken into account in the determination of the regulation limit of the tolerance to ZEA.
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136
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Marin DE, Pistol GC, Neagoe IV, Calin L, Taranu I. Effects of zearalenone on oxidative stress and inflammation in weanling piglets. Food Chem Toxicol 2013; 58:408-15. [PMID: 23727178 DOI: 10.1016/j.fct.2013.05.033] [Citation(s) in RCA: 94] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 04/30/2013] [Accepted: 05/18/2013] [Indexed: 02/02/2023]
Abstract
Zearalenone (ZEN) is a non-steroidal estrogenic mycotoxin produced by the fungi of Fusarium genera. Piglets were fed for 18 days with a control or a ZEN (316 ppb) contaminated diet. At the end of the experiment tissue samples were taken for assessment of: lymphocyte proliferation, monocytes and granulocytes respiratory burst, inflammatory cytokine synthesis in blood and liver, expression of genes involved in oxidative stress or in inflammation, plasma biochemical parameters, total antioxidant status and nitric oxide synthesis. In blood, ZEN increases the respiratory burst of monocytes and the inflammatory cytokine (TNF alpha, IL-1 beta, IFN gamma) synthesis, while in liver, ZEN decreases the synthesis of all inflammatory cytokines investigated. In liver and spleen, different effect on the expression of genes involved in oxidative stress and inflammation was observed. While in liver, ZEN decrease the expression of cyclooxigenase gene, but increase the expression of glutathione peroxydase and catalase genes; in spleen, ZEN induces a decrease of the superoxide dismutase gene expression together with an increase of the cyclooxigenase. In conclusion, our results showed that liver, spleen and blood may also be target tissues in weanling piglets fed ZEN contaminated diet, with different effects on oxidative stress and inflammation.
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Affiliation(s)
- Daniela E Marin
- Laboratory of Animal Biology, National Institute for Research and Development for Biology and Animal Nutrition, Calea Bucuresti No. 1, Balotesti, Ilfov 077015, Romania.
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137
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138
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Wang Y, Ning B, Peng Y, Bai J, Liu M, Fan X, Sun Z, Lv Z, Zhou C, Gao Z. Application of suspension array for simultaneous detection of four different mycotoxins in corn and peanut. Biosens Bioelectron 2013; 41:391-6. [DOI: 10.1016/j.bios.2012.08.057] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Revised: 08/14/2012] [Accepted: 08/30/2012] [Indexed: 11/26/2022]
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139
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Pietsch C, Kersten S, Burkhardt-Holm P, Valenta H, Dänicke S. Occurrence of deoxynivalenol and zearalenone in commercial fish feed: an initial study. Toxins (Basel) 2013; 5:184-92. [PMID: 23325300 PMCID: PMC3564077 DOI: 10.3390/toxins5010184] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Revised: 12/19/2012] [Accepted: 01/05/2013] [Indexed: 01/08/2023] Open
Abstract
The control of mycotoxins is a global challenge not only in human consumption but also in nutrition of farm animals including aquatic species. Fusarium toxins, such as deoxynivalenol (DON) and zearalenone (ZEN), are common contaminants of animal feed but no study reported the occurrence of both mycotoxins in fish feed so far. Here, we report for the first time the occurrence of DON and ZEN in samples of commercial fish feed designed for nutrition of cyprinids collected from central Europe. A maximal DON concentration of 825 μg kg(-1) feed was found in one feed whereas average values of 289 μg kg(-1) feed were noted. ZEN was the more prevalent mycotoxin but the concentrations were lower showing an average level of 67.9 μg kg(-1) feed.
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Affiliation(s)
- Constanze Pietsch
- Programm Mensch-Gesellschaft-Umwelt, Department of Environmental Sciences, University of Basel, Vesalgasse 1, Basel CH-4051, Switzerland; E-Mail:
| | - Susanne Kersten
- Friedrich-Loeffler-Institute (FLI), Federal Research Institute for Animal Health, Institute of Animal Nutrition, Bundesallee 50, Braunschweig D-38116, Germany; E-Mails: (S.K.); (H.V.); (S.D.)
| | - Patricia Burkhardt-Holm
- Programm Mensch-Gesellschaft-Umwelt, Department of Environmental Sciences, University of Basel, Vesalgasse 1, Basel CH-4051, Switzerland; E-Mail:
| | - Hana Valenta
- Friedrich-Loeffler-Institute (FLI), Federal Research Institute for Animal Health, Institute of Animal Nutrition, Bundesallee 50, Braunschweig D-38116, Germany; E-Mails: (S.K.); (H.V.); (S.D.)
| | - Sven Dänicke
- Friedrich-Loeffler-Institute (FLI), Federal Research Institute for Animal Health, Institute of Animal Nutrition, Bundesallee 50, Braunschweig D-38116, Germany; E-Mails: (S.K.); (H.V.); (S.D.)
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140
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Woźny M, Brzuzan P, Wolińska L, Góra M, Łuczyński MK. Differential gene expression in rainbow trout (Oncorhynchus mykiss) liver and ovary after exposure to zearalenone. Comp Biochem Physiol C Toxicol Pharmacol 2012; 156:221-8. [PMID: 22683937 DOI: 10.1016/j.cbpc.2012.05.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2012] [Revised: 05/28/2012] [Accepted: 05/31/2012] [Indexed: 01/13/2023]
Abstract
Zearalenone (ZEA) is a mycotoxin of worldwide occurrence, and it has been shown to produce numerous adverse effects in both laboratory and domestic animals. However, regardless of recent achievements, the molecular mechanisms underlying ZEA toxicity remain elusive, and little is known about transcriptome changes of fish cells in response to ZEA occurrence. In the present study, differential display PCR was used to generate a unique cDNA fingerprint of differentially expressed transcripts in the liver and ovary of juvenile rainbow trout after either 24, 72, or 168 h of intraperitoneal exposure to ZEA (10 mg/kg of body mass). From a total of 59 isolated cDNA bands (ESTs), 5 could be confirmed with Real-Time qPCR and their nucleotide sequences were identified as mRNAs of: acty (β-centractin), the cytoskeleton structural element; bccip, responsible for DNA repair and cell cycle control; enoa (α-enolase), encoding enzyme of the glycolysis process; proc (protein C), that takes part in the blood coagulation process; and frih, encoding the heavy chain of ferritin, the protein complex important for iron storage. Further qPCR analysis of the confirmed ESTs expression profiles revealed significant mRNA level alterations in both tissues of exposed fish during the 168 h study. The results revealed a complex network of genes associated with different biological processes that may be engaged in the cellular response to ZEA exposure, i.e. blood coagulation or iron-storage processes.
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Affiliation(s)
- Maciej Woźny
- Department of Environmental Biotechnology, Faculty of Environmental Sciences, University of Warmia and Mazury in Olsztyn, ul. Słoneczna 45G, 10-709 Olsztyn, Poland.
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141
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Abid-Essefi S, Zaied C, Bouaziz C, Salem IB, Kaderi R, Bacha H. Protective effect of aqueous extract of Allium sativum against zearalenone toxicity mediated by oxidative stress. ACTA ACUST UNITED AC 2012; 64:689-95. [DOI: 10.1016/j.etp.2010.12.012] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2010] [Revised: 12/04/2010] [Accepted: 12/22/2010] [Indexed: 01/13/2023]
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142
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Li Z, Yang Z, Yang W, Wang S, Jiang S, Wu Y. Effects of feed-borne Fusarium mycotoxins with or without yeast cell wall adsorbent on organ weight, serum biochemistry, and immunological parameters of broiler chickens. Poult Sci 2012; 91:2487-95. [DOI: 10.3382/ps.2012-02437] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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143
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Wang DF, Zhang NY, Peng YZ, Qi DS. Interaction of zearalenone and soybean isoflavone in diets on the growth performance, organ development and serum parameters in prepubertal gilts. J Anim Physiol Anim Nutr (Berl) 2012; 96:939-46. [PMID: 21883496 DOI: 10.1111/j.1439-0396.2011.01212.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The aim of the present research was to determine the interactive effect of zearalenone (ZEA) and soybean isoflavone (ISO) on the growth performance, development of organs and serum parameters in prepubertal gilts. Ninety 75-day-old female pigs (Duroc × Landrace × Yorkshire, 26.5 ± 0.60 kg) were randomly allocated to nine diet treatments during the 21-day study. The experiment employed a 3 × 3 factorial design using a non-soybean meal diet with the addition of 0, 0.5 or 2.0 mg/kg ZEA and 0, 300 or 600 mg/kg ISO. The results indicated that simultaneous addition of ZEA and ISO had no significant influence on the growth performance in prepubertal gilts. Zearalenone with 2 mg/kg increased (p < 0.05) the relative weight of the reproductive organs (including uterus and vagina) but had no obvious effects (p > 0.05) on the relative weight of the heart, liver, lung, kidney and spleen. Isoflavone at 600 mg/kg could offset the increased weight of the reproductive organs induced by ZEA. Simultaneous addition of ZEA and ISO to prepubertal gilts increased the level of alanine aminotransferase, aspartate aminotransferase and alkaline phosphatase in the serum (p < 0.05) at day 14 but their levels decreased (p < 0.05) over time. Zearalenone increased the level of malondialdehyde and decreased the concentrations of superoxide dismutase and glutathione peroxidase (p < 0.05) in the serum. The results suggested that ISO added to diets at 600 mg/kg could reduce the increase in the relative weight of reproductive organs and relieve the oxidative stress induced by ZEA added at 2 mg/kg during the growth phase in prepubertal gilts.
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Affiliation(s)
- D F Wang
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, HuaZhong Agricultural University, Wuhan, China
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144
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Vulić A, Pleadin J, Perši N, Mitak M. ANALYSIS OF NATURALLY OCCURRING ZEARALENONE IN FEEDING STUFFS AND URINE OF FARM ANIMALS IN CROATIA. J Immunoassay Immunochem 2012; 33:369-76. [DOI: 10.1080/15321819.2012.655821] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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145
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Wang YC, Deng JL, Xu SW, Peng X, Zuo ZC, Cui HM, Wang Y, Ren ZH. Effects of zearalenone on calcium homeostasis of splenic lymphocytes of chickens in vitro. Poult Sci 2012; 91:1956-63. [PMID: 22802191 DOI: 10.3382/ps.2011-02128] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Zearalenone (ZEA) is an estrogenic mycotoxin. It is produced by several Fusarium species and can contaminate food and feed. To investigate the role of calcium homeostasis in ZEA-induced toxicity of poultry and elucidate its cytotoxic mechanism, splenic lymphocytes isolated from chickens were exposed to ZEA (0-25 μg/mL) for 48 h. The intracellular calcium concentration ([Ca2+]i), pH, calmodulin (CaM) mRNA levels, and Na+/K+-ATPase activities and Ca2+-ATPase activities were detected by the fluorescent dyes Fluo-3/AM and BCECF/AM, quantitative real-time PCR, and chromatometry. Supernatant CaM concentrations were simultaneously detected by ELISA. As the ZEA exposure concentration increased, the [Ca2+]i and CaM mRNA levels gradually increased, while intracellular pH, CaM concentrations of supernatants, and intracellular Na+,K+-ATPase and Ca2+-ATPase activities gradually decreased in a dose-dependent manner. There were significant differences (P<0.05 or P<0.01) between the treatment groups and the control group. These results indicate that ZEA cytotoxicity arises by causing an imbalance in calcium homeostasis and intracellular acidification in lymphocytes.
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Affiliation(s)
- Y C Wang
- College of Veterinary Medicine, Sichuan Agricultural University, Yaan, Sichuan 625014, PR China
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146
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Possible role for glutathione-S-transferase in the oligozoospermia elicited by acute zearalenone administration in Swiss albino mice. Toxicon 2012; 60:358-66. [DOI: 10.1016/j.toxicon.2012.04.353] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2012] [Revised: 04/25/2012] [Accepted: 04/26/2012] [Indexed: 11/22/2022]
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147
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148
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Gazzah AC, Camoin L, Abid S, Bacha H, Ladjimi M. iTRAQ: a method to elucidate cellular responses to mycotoxin zearalenone. J Appl Toxicol 2012; 33:566-75. [DOI: 10.1002/jat.1766] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2011] [Revised: 09/26/2011] [Accepted: 10/03/2011] [Indexed: 12/23/2022]
Affiliation(s)
| | | | - Salwa Abid
- Laboratory of Research on Biologically Compatible Compounds, Faculty of Dentistry; Rue Avicenne; Monastir; 5000; Tunisia
| | - Hassen Bacha
- Laboratory of Research on Biologically Compatible Compounds, Faculty of Dentistry; Rue Avicenne; Monastir; 5000; Tunisia
| | - Moncef Ladjimi
- Laboratory of Genetic and Cellular Biology, CNRS, UMR 8159; Versailles St-Quentin University; 45 Avenue des Etats-Unis; Versailles; 78035; France
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149
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150
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Oliver W, Miles J, Diaz D, Dibner J, Rottinghaus G, Harrell R. Zearalenone enhances reproductive tract development, but does not alter skeletal muscle signaling in prepubertal gilts. Anim Feed Sci Technol 2012. [DOI: 10.1016/j.anifeedsci.2012.02.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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