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Wyszukujesz frazę "Mielżyńska, D." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Micronucleus assay in epithelial cells from the oral cavity and urinary tract in female smokers and non-smokers
Autorzy:
Błaszczyk, E.
Mielzynska-Svach, D.
Powiązania:
https://bibliotekanauki.pl/articles/363246.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
epithelial cells
micronucleus assay
oral cavity
tobacco smoking
urinary tract
komórki nabłonkowe
test mikrojądrowy
jama ustna
palenie tytoniu
drogi moczowe
Opis:
The aim of the work was to investigate the possible use of epithelial cells from the oral cavity and urinary tract in identifying smoking-related effects in women. Epithelial cells from the oral cavity and urinary tract were collected from 9 smoking and 9 non-smoking women and subjected to micronucleus assay. The DNA damage (cells with micronuclei and nuclear buds), cytokinetic defects (binucleated cells) and cell death (condensed chromatin, karyorrhexis, pyknosis and karyolysis) were observed after DNA specific staining. In pooled analysis of the frequency of binucleated cells and condensed chromatin cells in 18 studied women, statistically significant differences were noted only in epithelial cells from the oral cavity in comparison to those of the urinary tract. Non pooled results demonstrated no differences in damage frequency in cells collected from the oral cavity and isolated from the urine. The lack of differences in the observed frequencies of micronuclei in buccal and urothelial cells could be an effect of the small size of the sampled group, smoking pattern of the women and the number of cigarettes smoked per day.
Źródło:
Environmental Biotechnology; 2014, 10, 2; 60-65
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
    Wyświetlanie 1-2 z 2

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