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Wyszukujesz frazę "Luczyński, M." wg kryterium: Autor

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    Wyświetlanie 1-4 z 4
    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
    Tytuł:
    Genotoxicity of cyclopentha[c]phenanthrene and its two derivatives based on an in vitro micronucleus test
    Autorzy:
    Rudnicka, K.
    Łuczyński, M. K.
    Góra, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/363298.pdf
    Data publikacji:
    2012
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie
    Tematy:
    derivatives
    genotoxicity
    in vitro micronucleus test
    PAHs
    V79
    pochodne
    genotoksyczność
    test mikrojądrowy in vitro
    Opis:
    Environmental pollution causes a variety of health problems, including cancer. Many known pollutants have carcinogenic properties and polycyclic aromatic hydrocarbons (PAH) belong to this group. In this study, an in vitro culture of V79 cells of the Chinese hamster was subjected to three tested PAHs: 5-amino-2,3-dihydro-1H-cyclopenta-[c]phenanthrene (ACP[c]Ph), 5-amino-9-methoxy-2,3-dihydro-1H-cyclopenta[c]phenanthrene (AMCP[c]Ph) and cyclopenta[c]phenanthrene (CP[c]Ph). The in vitro micronucleus (MN) assay was applied in order to evaluate the genotoxic properties of the studied compounds. The highest genotoxic effect was observed for AMCP[c]Ph in a concentration of 0.02μg·ml-1. The genotoxic effect of the other two compounds was slightly lower.
    Źródło:
    Environmental Biotechnology; 2012, 8, 2; 63-66
    1734-4964
    Pojawia się w:
    Environmental Biotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Synthesis and fungistatic activity of aryl-substituted naphthalene- and indene-2-carbonitriles
    Autorzy:
    Kozik, B
    Burgieł, Z. J.
    Sepioł, J. J.
    Wilamowski, J.
    Łuczyński, M. K.
    Góra, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/363192.pdf
    Data publikacji:
    2006
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie
    Tematy:
    grzyby fitopatogenne
    WWA
    aktywność fungistatyczna
    ochrona roślin
    phytopathogenic fungi
    PAHs
    fungistatic activity
    plant protection
    Opis:
    4-Aryl-substituted 1-aminonaphthalene-2-carbonitriles and 3-phenyl-1-oxo-1H-indene-2-carbonitriles were prepared in a two--step synthesis from appropriate carbonyl compounds and were evaluated in vitro for growth-inhibiting activity against some phytopathogenic fungi: Fusarium culmorum, Penicillium expansum, Botrytis cinerea and Alternaria species. The results were compared with the activity of a commercial fungicide - captan. The highest fungistatic activity was revealed by 1-amino-4-phenylnaphthalene-2-carbonitrile. An efficient synthesis of 1-amino-4-arylnaphthalene-2-carbonitriles involves condensation of diarylacetaldehydes or 1,1-diarylacetones with malonodinitrile and cyclization of the obtained aryl-ylidenemalonodinitriles in concentrated sulfuric acid. The benzannulation reaction is accompanied by a quasi-aromatic rearrangement. The indenone derivatives were synthesized in the same manner from substituted benzophenones. As the formation of five-membered ring during the cyclization of diarylmethylidenemalonodinitriles was less effective, the rearrangement was not observed.
    Źródło:
    Environmental Biotechnology; 2006, 2, 1; 20-25
    1734-4964
    Pojawia się w:
    Environmental Biotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preliminary study on adverse effects of phenanthrene and its methyl and phenyl derivatives in larval zebrafish, Danio rerio
    Autorzy:
    Wolińska, L.
    Brzuzan, P.
    Woźny, M.
    Góra, M.
    Łuczyński, M. K.
    Podlasz, P.
    Kolwicz, S.
    Piasecka, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/363152.pdf
    Data publikacji:
    2011
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie
    Tematy:
    toksyczność ostra
    CYP1A
    cyp1b1
    geny vtg
    ekspresja mRNA
    stężenie nie wywołujące efektu
    WWA
    Real-Time qPCR
    acute toxicity
    cyp1a genes
    cyp1b1 genes
    vtg genes
    mRNA expression
    No Effect Concentration
    PAHs
    Opis:
    Toxic effects of polycyclic aromatic hydrocarbons (PAHs) have been extensively studied in fish, although knowledge concerning biological activities of phenanthrene and its derivatives remains still incomplete. The aim of this work was to evaluate lethal and sublethal effects of benzo(a)pyrene, phenanthrene and phenanthrene derivatives (1-methylphenanthrene, 4-methylphenanthrene, 1-phenylphenanthrene and 4-phenylphenanthrene) on zebrafish (Danio rerio) larvae. We conducted acute toxicity test, using 96h static renewal exposure to a series of the PAH concentrations (0.05, 0.50, 5.00, 50.00µmol*l-1), to determine the No Effect Concentration (NEC) value for each compound examined. The mean NEC estimates obtained in the study were 5.16۪.45µmol*l-1 (B[a]P), 4.88۪.13µmol*l-1 (Ph), 40.24䔰.93µmol*l-1 (1P-Ph), 47.92ۭ.61µmol*l-1 (1M-Ph), 24.31۱.33µmol*l-1 (4P-Ph) and 3.11۫.01µmol*l-1 (4M-Ph) and suggested the following order of PAH toxicities on Danio rerio larvae: 4M-Ph>Ph˜B[a]P>4PPhP-Ph>1M-Ph. To gain insight into possible molecular mechanisms of apparent toxicity of phenanthrene derivatives on zebrafish larvae, we examined mRNA expression of cyp1a, cyp1b1, and vtg genes in the larvae exposed for 48h to a PAH concentration of 0.50µmol*l-1. Whereas the larvae exposed to each tested PAH displayed many developmental abnormalities (i.e. pericardial and yolk sac edema, dorsal curvature, or tail malformations), no significant upregulation of cyp1a and cyp1b1 mRNA was observed, except for zebrafish exposed to B[a]P. However, significant reduction of vtg mRNA was observed in the larvae exposed to phenanthrene and its 4P- derivative. The results may contribute to the development of a new knowledge about effects of structurally diverse phenanthrene derivatives on vertebrate organisms.
    Źródło:
    Environmental Biotechnology; 2011, 7, 1; 26-33
    1734-4964
    Pojawia się w:
    Environmental Biotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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