2
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Radioiodination of zearalenone and determination of Lactobacillus plantarum effect of on zearalenone organ distribution: In silico study and preclinical evaluation

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Graphical abstract

          Highlights

          • Novel tracing method for mycotoxin distribution in experimental animals.

          • Considering the protective effect of l. Plantarum.

          • Tracing mycotoxin distribution in animal organs.

          Abstract

          Purpose

          Zearalenone (ZEN) which is one of the known fusarium species mycotoxin, produced primarily on many cereal crops. Consequently, the current study aims to estimate the possibility of labeling zearalenone and the pattern of accumulation of the produced labeled zearalenone [ 125I]-ZEN in different mice tissues, and the possible protective effect of Lactobacillus plantarum to reduce organ accumulation of Zearalenone.

          Materials and methods

          the experiment was conducted on two groups of mice were used; the two groups received [ 125I] Zearalenone administered by tail vein injection, the first group receive nothing else while the second group received also L. plantarum (as a control agent) orally. The mice were kept under observation for 120 min to monitor zearalenone distribution.

          Results

          by monitoring the zearalenone distribution the maximum concentration was found to be mainly primarily in the intestine (45.8 %) followed by the liver (27.15 %) while in the ovary (the most susceptible organ was (3.22 %) after120 min, in the first group of mice. The same pattern was observed in the second group with concentrations of (46.1 %), (30.19 %) and (0.09 %) in the intestine, liver respectively.

          Conclusion

          These results indicated the lactic acid bacteria played a role in decreasing labeled zearalenone in the ovaries which is the target organ. [ 125I]-labeled ZEN is a promising novel tracer for organ imaging and that a significant role that L. plantarum could play in decreasing the zearalenone bioavailability of in mice organs.

          Related collections

          Most cited references137

          • Record: found
          • Abstract: found
          • Article: not found

          Interaction of estrogenic chemicals and phytoestrogens with estrogen receptor beta.

          The rat, mouse and human estrogen receptor (ER) exists as two subtypes, ER alpha and ER beta, which differ in the C-terminal ligand-binding domain and in the N-terminal transactivation domain. In this study, we investigated the estrogenic activity of environmental chemicals and phytoestrogens in competition binding assays with ER alpha or ER beta protein, and in a transient gene expression assay using cells in which an acute estrogenic response is created by cotransfecting cultures with recombinant human ER alpha or ER beta complementary DNA (cDNA) in the presence of an estrogen-dependent reporter plasmid. Saturation ligand-binding analysis of human ER alpha and ER beta protein revealed a single binding component for [3H]-17beta-estradiol (E2) with high affinity [dissociation constant (Kd) = 0.05 - 0.1 nM]. All environmental estrogenic chemicals [polychlorinated hydroxybiphenyls, dichlorodiphenyltrichloroethane (DDT) and derivatives, alkylphenols, bisphenol A, methoxychlor and chlordecone] compete with E2 for binding to both ER subtypes with a similar preference and degree. In most instances the relative binding affinities (RBA) are at least 1000-fold lower than that of E2. Some phytoestrogens such as coumestrol, genistein, apigenin, naringenin, and kaempferol compete stronger with E2 for binding to ER beta than to ER alpha. Estrogenic chemicals, as for instance nonylphenol, bisphenol A, o, p'-DDT and 2',4',6'-trichloro-4-biphenylol stimulate the transcriptional activity of ER alpha and ER beta at concentrations of 100-1000 nM. Phytoestrogens, including genistein, coumestrol and zearalenone stimulate the transcriptional activity of both ER subtypes at concentrations of 1-10 nM. The ranking of the estrogenic potency of phytoestrogens for both ER subtypes in the transactivation assay is different; that is, E2 > zearalenone = coumestrol > genistein > daidzein > apigenin = phloretin > biochanin A = kaempferol = naringenin > formononetin = ipriflavone = quercetin = chrysin for ER alpha and E2 > genistein = coumestrol > zearalenone > daidzein > biochanin A = apigenin = kaempferol = naringenin > phloretin = quercetin = ipriflavone = formononetin = chrysin for ER beta. Antiestrogenic activity of the phytoestrogens could not be detected, except for zearalenone which is a full agonist for ER alpha and a mixed agonist-antagonist for ER beta. In summary, while the estrogenic potency of industrial-derived estrogenic chemicals is very limited, the estrogenic potency of phytoestrogens is significant, especially for ER beta, and they may trigger many of the biological responses that are evoked by the physiological estrogens.
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Mycotoxins

            Mycotoxins are secondary metabolites produced by microfungi that are capable of causing disease and death in humans and other animals. Because of their pharmacological activity, some mycotoxins or mycotoxin derivatives have found use as antibiotics, growth promotants, and other kinds of drugs; still others have been implicated as chemical warfare agents. This review focuses on the most important ones associated with human and veterinary diseases, including aflatoxin, citrinin, ergot akaloids, fumonisins, ochratoxin A, patulin, trichothecenes, and zearalenone.
              Bookmark
              • Record: found
              • Abstract: found
              • Article: found
              Is Open Access

              Global Mycotoxin Occurrence in Feed: A Ten-Year Survey

              Mycotoxins contaminating animal feed can exert toxic effects in animals and be transferred into animal products. Therefore, mycotoxin occurrence in feed should be monitored. To this end, we performed a large-scale global survey of mycotoxin contamination in feed and assessed regional differences and year-to-year variation of mycotoxin occurrence. Concentrations of aflatoxin B1, zearalenone, fumonisins, ochratoxin A, deoxynivalenol, and T-2 toxin were analyzed in 74,821 samples of feed and feed raw materials (e.g., maize, wheat, soybean) collected from 100 countries from 2008 to 2017. In total, 88% of the samples were contaminated with at least one mycotoxin. Mycotoxin occurrence showed distinct regional trends and climate was a key determinant governing these trends. In most regions, the majority of samples complied with maximum levels and guidance values for mycotoxins in animal feed that are in effect in the European Union. However, 41.1%, 38.5%, and 20.9% of samples from South Asia, Sub-Saharan Africa, and Southeast Asia, respectively, exceeded the maximum level for aflatoxin B1 (20 µg/kg). In several regions, mycotoxin concentrations in maize showed a pronounced year-to-year variation that could be explained by rainfall or temperature during sensitive periods of grain development. A large fraction of samples (64%) was co-contaminated with ≥ 2 mycotoxins. Most frequently observed mycotoxin mixtures were combinations of deoxynivalenol, zearalenone, and fumonisins, as well as fumonisins and aflatoxin B1. Deoxynivalenol and zearalenone concentrations were correlated in maize and wheat. In conclusion, according to an extensive global survey, mycotoxin (co-)contamination of animal feed is common, shows regional trends, and is governed in part by climate and weather.
                Bookmark

                Author and article information

                Contributors
                Journal
                Toxicol Rep
                Toxicol Rep
                Toxicology Reports
                Elsevier
                2214-7500
                11 February 2022
                2022
                11 February 2022
                : 9
                : 470-479
                Affiliations
                [a ]Labeled Compounds Department, Hot Labs Center, Atomic Energy Authority, P.O. Box 13759, Cairo, Egypt
                [b ]Pharmaceutical Chemistry Department, Faculty of Pharmacy, Ahram Canadian University, Giza, 12578, Egypt
                [c ]Food Toxicology and Contaminants Department, National Research Centre, Dokki, Cairo, PB12622, Egypt
                Author notes
                [* ]Corresponding author. Bassemsabry2004@ 123456gmail.com
                Article
                S2214-7500(22)00017-8
                10.1016/j.toxrep.2022.02.003
                8956894
                34a8ff11-72ce-438d-9224-5c533c98b774
                © 2022 The Author(s)

                This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

                History
                : 31 May 2021
                : 21 January 2022
                : 6 February 2022
                Categories
                Regular Article

                radioiodination,zearalenone,protective effect,lactobacillus plantarum,organ toxicity

                Comments

                Comment on this article