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 AJPS  Vol.6 No.6 , April 2015
Protective Effects of Saponin Mixture, Isolated from Astragalus monspessulanus subsp. monspessulanus on Tert-Butyl Hydroperoxide—Induced Oxidative Stress in Isolated Rat Hepatocytes
Magdalena Spasova Kondeva-Burdina1, Viktor Bratkov2, Rumyana Lubomirova Simeonova1, Vessela Bisserova Vitcheva1*, Ilina Nikolaeva Krasteva2, Petranka Krumova Zdraveva2
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Abstract: Saponin mixture, obtained from Astragalus monspessulanus subsp. monspessulanus (Fabaceae) was investigated for possible protective effect on tert-butyl hydroperoxide (t-BuOOH)-induced cytotoxicity using primary isolated rat hepatocytes. The cells were isolated by two-stepped col-lagenase perfusion. Liver damage was induced by one hour incubation with t-BuOOH (75 μmol·L-1) and discerned by decreased cell viability, increased lactate dehydrogenase (LDH) leakage into the medium, increased production of malondialdehyde (MDA) and depletion of the cell protector glutathione (GSH). Cell pre-incubation with the saponin mixture (1 mg/mL and 5 mg/mL) significantly (p < 0.05) ameliorated t-BuOOH-induced liver damage, judged by preserved cell viability, decreased activity of LDH, decreased MDA production and restoration of GSH. The effect was concentration-dependent, more pronounced in the highest concentration and comparable with those of silymarin, used as a positive control. The observed cytoprotective effect could be explained by the influence of the saponins on the mitochondrial function, disturbed by t-BuOOH toxic metabolites.
Keywords: Astragalus monspessulanus, Saponins, Hepatocytes, Antioxidant Activity, Cytoprotection
Cite this paper: Kondeva-Burdina, M. , Bratkov, V. , Simeonova, R. , Vitcheva, V. , Krasteva, I. and Zdraveva, P. (2015) Protective Effects of Saponin Mixture, Isolated from Astragalus monspessulanus subsp. monspessulanus on Tert-Butyl Hydroperoxide—Induced Oxidative Stress in Isolated Rat Hepatocytes. American Journal of Plant Sciences, 6, 799-803. doi: 10.4236/ajps.2015.66085.
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