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Wyszukujesz frazę "hydroxy−" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Induction of CMV-1 promoter by 4-hydroxy-2-nonenal in human embryonic kidney cells
Autorzy:
Jaganjac, Morana
Matijevic, Tanja
Cindric, Marina
Cipak, Ana
Mrakovcic, Lidija
Gubisch, Wolfgang
Zarkovic, Neven
Powiązania:
https://bibliotekanauki.pl/articles/1040401.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
cytomegalovirus
4-hydroxy-2-nonenal
oxidative stress
Opis:
Oxidative stress, i.e., excessive production of oxygen free radicals and reactive oxygen species, leads to lipid peroxidation and to formation of reactive aldehydes which act as second messengers of free radicals. It has previously been shown that oxidative stress may be involved in the transcriptional regulation of cytomegalovirus (CMV) immediate early promoter, involved in viral reactivation from latency. In the current study we used a plasmid containing the yellow fluorescent protein (YFP) gene under the control of CMV-1 promoter to monitor the influence of hydrogen peroxide and reactive aldehydes, 4-hydroxy-2-nonenal (HNE) and acrolein, on CMV-1 promoter activation in human embryonic kidney cells (HEK293). While acrolein was ineffective, hydrogen peroxide slightly (50 %) stimulated the CMV promoter. In contrast, HNE had a strong, up to 3-fold, enhancing effect on the CMV-1 promoter within four as well as after 24h of treatment. The most effective was the treatment with 24 µM HNE. This effect of HNE suggests that stressful conditions associated with lipid peroxidation could lead to CMV activation.
Źródło:
Acta Biochimica Polonica; 2010, 57, 2; 179-183
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification of hydroxy-plastochromanol in Arabidopsis leaves
Autorzy:
Szymańska, Renata
Kruk, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/1040435.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
Arabidopsis
hydroxy-plastochromanol
plastochromanol
plastoquinol
tocopherol
light stress
Opis:
In the present study we have identified hydroxy-plastochromanol in plants for the first time. This compound was found both in low light and high light-grown Arabidopsis plants, however, under high light stress its level was considerably increased. Hydroxy-plastochromanol accumulated also during ageing of leaves of low light-grown plants, similarly as in the case of other prenyllipids. Our results indicate that hydroxy-plastochromanol found in leaves is probably formed as a result of plastochromanol oxidation by singlet oxygen generated in photosystem II during photosynthesis. These data also support the hypothesis that plastochromanol is an efficient antioxidant in vivo, similarly as tocopherols and plastoquinol.
Źródło:
Acta Biochimica Polonica; 2010, 57, 1; 105-108
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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