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    Wyświetlanie 1-3 z 3
    Tytuł:
    The effects of taxol (paclitaxel) on chemiluminescence of neutrophils, macrophages and J.774.2 cell line
    Autorzy:
    Czuba, Zenon
    Król, Wojciech
    Hasiński, Piotr
    Nowowiejska, Alicja
    Powiązania:
    https://bibliotekanauki.pl/articles/1044860.pdf
    Data publikacji:
    1998
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Źródło:
    Acta Biochimica Polonica; 1998, 45, 1; 103-106
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The ESR1 and GPX1 gene expression level in human malignant and non-malignant breast tissues
    Autorzy:
    Król, Magdalena
    Galicki, Michał
    Grešner, Peter
    Wieczorek, Edyta
    Jabłońska, Ewa
    Reszka, Edyta
    Morawiec, Zbigniew
    Wąsowicz, Wojciech
    Gromadzińska, Jolanta
    Powiązania:
    https://bibliotekanauki.pl/articles/1038523.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    estrogen receptor
    antioxidant enzymes
    gene expression
    breast cancer tissue
    Opis:
    Background: The aim of this study was to establish whether the gene expression of estrogen receptor alpha (encoded by ESR1) correlates with the expression of glutathione peroxidase 1 (encoded by GPX1) in the tumor and adjacent tumor-free breast tissue, and whether this correlation is affected by breast cancer. Such relationships may give further insights into breast cancer pathology with respect to the status of estrogen receptor. Methods: We used the quantitative real-time PCR technique to analyze differences in the expression levels of the ESR1 and GPX1 genes in paired malignant and non-malignant tissues from breast cancer patients. Results: ESR1 and GPX1 expression levels were found to be significantly down-regulated by 14.7% and 7.4% (respectively) in the tumorous breast tissue when compared to the non-malignant one. Down-regulation of these genes was independent of the tumor histopathology classification and clinicopathological factors, while the ESR1 mRNA level was reduced with increasing tumor grade (G1: 103% vs. G2: 85.8% vs. G3: 84.5%; p<0.05). In the non-malignant and malignant breast tissues, the expression levels of ESR1 and GPX1 were significantly correlated with each other (Rs=0.450 and Rs=0.360; respectively). Conclusion: Our data suggest that down-regulation of ESR1 and GPX1 was independent of clinicopathological factors. Down-regulation of ESR1 gene expression was enhanced by the development of the disease. Moreover, GPX1 and ESR1 gene expression was interdependent in the malignant breast tissue and further work is needed to determine the mechanism underlying this relationship.
    Źródło:
    Acta Biochimica Polonica; 2018, 65, 1; 51-57
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Acute hepatologic and nephrologic effects of calcitriol in Syrian golden hamster (Mesocricetus auratus)
    Autorzy:
    Podgorska, Ewa
    Sniegocka, Martyna
    Mycinska, Marianna
    Trybus, Wojciech
    Trybus, Ewa
    Kopacz-Bednarska, Anna
    Wiechec, Olga
    Krzykawska-Serda, Martyna
    Elas, Martyna
    Krol, Teodora
    Urbanska, Krystyna
    Slominski, Andrzej
    Powiązania:
    https://bibliotekanauki.pl/articles/1038358.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    calcitriol
    Syrian golden hamster
    hepatologic toxicity
    nephrologic toxicity
    Opis:
    Although vitamin D is included in the group of fat-soluble vitamins, it must be considered as a prohormone. Its active forms, including calcitriol, have pleiotropic effects and play an important role in the regulation of cell proliferation, differentiation and apoptosis, as well as in hormone secretion, and they demonstrate anti-cancer properties. Since calcitriol delivery can be beneficial for the organism, and Syrian golden hamsters represent a unique experimental model, we decided to investigate its toxicity in this species. In this study, we injected calcitriol intraperitoneally at doses 0 (control), 0.180±0.009 µg/kg and 0.717±0.032 µg/kg. Animal behavior was observed for 72 hrs after injection, and afterwards blood, liver and kidneys were collected for post-mortem examination, electron microscopy, and hematology analyses. The highest dose of calcitriol induced a change in animal behavior from calm to aggressive, and the liver surface showed morphological signs of damage. Following injection of calcitriol, ultrastructural changes were also observed in the liver and kidneys, e.g. vacuolization and increased number of mitochondria. There was also a trend for increased serum levels of aspartate aminotransferase (AST), but not of alanine aminotransferase (ALT) or GGTP (gamma-glutamyl transpeptidase). There was no change in Ca, Mg and P levels, as well as in blood morphology between experimental and control groups. These results indicate that calcitriol at 0.717, but not at 0.180 µg/kg, may induce acute damage to the liver and kidneys, without inducing calcemia. We propose that the hepatotoxic effect of calcitriol in hamster constitutes the primary cause of behavioral changes.
    Źródło:
    Acta Biochimica Polonica; 2018, 65, 3; 351-358
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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