Cytoprotective action of 17beta-oestradiol against iron-induced hepatic oxidative stress in vitro

• Autorzy: Wojcik M , Kosior-Korzecka U. , Bobowiec R.
• Języki publikacji: EN

Abstrakty

EN

The objective of this study was to analyse the response of hepatocytes on various concentrations of 17ß-oestradiol (17ß-E) under iron-induced oxidative stress in vitro. Isolated by in situ collagenase perfusion hepatocytes were cultured in DMEM/HAMS-12 (v/v) medium without any additional agents (control), with Fe³⁺ alone, and with Fe³⁺ aild 0.2%, 0.02%, and 0.002% solution of 17ß-E (17ß-EI, 17ß-EII, and 17ß-EIII, respectively). After 24, 48, and 72 h, medium malonylodialdehyde (MDA), haptoglobin (Hpt) concentration and proliferative activity were determined. In comparison to control samples, and samples collected at 24 and 72 h, hepatocytes exposition to Fe³⁺, caused a significant increase in MDA (0.056 ±0.011 nM/mL) only after 48 h of incubation. Each of 17ß-E concentrations resulted in a decrease in MDA in samples obtained after 24 and 48 h. In comparison to the first 24 h, Fe³⁺ alone and together with 17ß-EI, 17ß-EII, and 17ß-EIII caused a significant augmentation of Hpt level in 48 h and 72 h of the experiment. Each of the 17ß-E concentrations added to the culture medium resulted in inhibition of hepatic proliferative activity, especially in the 72 h of cell culture.

Słowa kluczowe

EN

hepatocyte; oxidative stress; iron; 17beta-estradiol; haptoglobin; in vitro; cytoprotection

• Wydawca: -
• Czasopismo: Bulletin of the Veterinary Institute in Puławy
• Rocznik: 2010
• Tom: 54
• Numer: 2
• Opis fizyczny: p.259-263,fig.,ref.

Twórcy

autor

Wojcik M

• University of Life Sciences in Lublin, 20-033 Lublin, Poland

autor

Kosior-Korzecka U.

autor

Bobowiec R.

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