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    Wyświetlanie 1-4 z 4
    Tytuł:
    2,4-diphenylthiophene induces mainly base pair mutation in Salmonella Typhimurium
    Autorzy:
    Budzikur, K. A.
    Mielżyńska-Švach, D.
    Góra, M.
    Chachaj, A.
    Pawłowski, M.
    Łuczyński, M. K.
    Powiązania:
    https://bibliotekanauki.pl/articles/363086.pdf
    Data publikacji:
    2012
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie
    Tematy:
    test Amesa
    związki heterocykliczne
    mutagenność
    siarkowe wielopierścieniowe węglowodory aromatyczne
    Ames test
    heterocyclic compounds
    mutagenicity
    sulfur-PAHs
    Opis:
    Heterocyclic aromatic compounds containing sulfur (S-HET), have been detected in air, soil, marine environment and freshwater sediment. Toxicity and mutagenicity data of this class of substances are scarce. The present study focuses on implications of two aryl thiophenes and their mutagenic properties in Salmonella/microsome test. In our experiment only 2,4-diphenylthiophene showed little mutagenic effect in both variants of activaction (+/-S9) in strain TA100. Thiophene ring joined to K-region of phenanthrene did not change the biological activity of 3,6-dimetoxyphenanthro [9,10-c]thiophene and this compound did not show mutagenic potency.
    Źródło:
    Environmental Biotechnology; 2012, 8, 1; 28-31
    1734-4964
    Pojawia się w:
    Environmental Biotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of mutagenic activity of methyl- and phenylphenanthrenes based on Salmonella test and micronucleus test
    Autorzy:
    Rudnicka, K.
    Tejs, S.
    Budzikur, K. A.
    Mielżyńska-Švach, D.
    Jakimiuk, E.
    Chachaj, A.
    Góra, M.
    Żelazna, K.
    Łuczyński, M. K.
    Powiązania:
    https://bibliotekanauki.pl/articles/363178.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie
    Tematy:
    Ames test
    in vitro
    micronucleus test
    mutagenicity
    phenanthrene
    test Amesa
    mutagenność
    test mikrojądrowy
    fenanatren
    Opis:
    Polycyclic aromatic hydrocarbons (PAHs) are widely spread environmental pollutants mainly originating from anthropogenic sources such as fossil fuel combustion, industries, and others. Although a large body of literature exists on the toxicity and carcinogenicity of PAHs, primarily benzo[a]pyrene, toxicity data for phenanthrene deriveratives are very limited. The main aim of the experiment was to investigate if there exists correlation between molecular structure and mutagenic activity of four phenanthrene derivatives: 1 methylphenanthrene, 4 methylphenanthrene, 1 phenylphenanthrene, and 4 phenylphenanthrene. An Ames assay using two strains of histidine dependent Salmonella Typhimurium (TA98 and TA100) was conducted to assess the mutagenic activity of studied compounds both in the presence (+S9) and in the absence (-S9) of an exogenous source of metabolic activation. The compounds were also tested in an in vitro chromosome aberration assay in which V-79 cells were exposed to the phenanthrene derivatives investigated both in the presence and in the absence of metabolic activation. The phenylphenanthrenes showed no mutagenic effect. These compounds occasionally induced significant decrease in the number of revertants in the Ames test. The greatest mutagenic effects were observed for 1 methylphenanthrene after metabolic activation (+S9). In the micronucleus test the greatest mutagenic effect was observed for 4 methylphenanthrene also in the presence of metabolic activation system. The results obtained are comparable to those reported earlier for the methylphenanthrenes.
    Źródło:
    Environmental Biotechnology; 2013, 9, 2; 65-71
    1734-4964
    Pojawia się w:
    Environmental Biotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mutagenicity induced in Salmonella strains TA98 and TA100 by diphenylthiophenes
    Autorzy:
    Budzikur, K. A.
    Góra, M.
    Chachaj, A.
    Mielżyńska-Švach, D.
    Tejs, S.
    Łuczyński, M. K.
    Powiązania:
    https://bibliotekanauki.pl/articles/363118.pdf
    Data publikacji:
    2011
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie
    Tematy:
    test Amesa
    mutacja
    monomery tiofenowe
    Ames test
    mutation
    thiophene monomers
    Opis:
    Mutagenic properties of four different diphenylthiophenes: 3,4-diphenylthiophene, 3,4-di(4'-methylphenyl)thiophene, 3,4-di(4'-methoxyphenyl)thiophene and 3,4-di(4'-pentoxyphenyl)thiophene were investigated applying the Salmonella test. The research was done on two strains of Salmonella Typhimurium: TA98 and TA100, tested in two variants: with (+S9) and without (-S9) enzymatic activation. Only one compound 3,4-di(4'-methylphenyl)thiophene showed mutagenic activity when studied with metabolic activation (+S9) and its mutagenic rate (MR) score was 3.41 for the dose of 10.00µg*plate-1. Other studied compounds did not show any mutagenic activity (+/-S9) and their MR score did not exceed the threshold value of 2.0.
    Źródło:
    Environmental Biotechnology; 2011, 7, 2; 65-69
    1734-4964
    Pojawia się w:
    Environmental Biotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preliminary evaluation of mutagenic activity of two amino derivatives of cyclopenta[c]phenanthrene
    Autorzy:
    Łuczyński, M. K.
    Góra, M.
    Mielżyńska, D.
    Brzuzan, P.
    Tejs, S.
    Pirogowicz, P.
    Luczynski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/363278.pdf
    Data publikacji:
    2007
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie
    Tematy:
    test Amesa
    fenantren
    mutacje DNA
    WWA
    Ames test
    phenanthrene
    DNA mutations
    PAHs
    Opis:
    The mutagenicity of two, newly synthesized amino-derivatives of cyclopenta[c]phenanthrene (CP[c]Ph) was investigated in the Ames test using TA98 and TA100 histidine dependent Salmonella typhimurium strains. Neither of the examined compounds showed mutagenic activity without metabolic activation. The incorporation of an activation system caused high mutagenicity of CP[c]Ph derivatives in both S. typhimurium strains. The results are compared with the previous data on the mutagenic activity of unsubstituted CP[c]Ph and possible mechanisms of activation are discussed.
    Źródło:
    Environmental Biotechnology; 2007, 3, 1; 15-19
    1734-4964
    Pojawia się w:
    Environmental Biotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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