期刊
JOURNAL OF BIOCHEMICAL AND MOLECULAR TOXICOLOGY
卷 28, 期 12, 页码 558-567出版社
WILEY
DOI: 10.1002/jbt.21598
关键词
Lophirones B and C; Nrf-2; Oxidative Stress Biomarkers; lipid Peroxidation; Aflatoxin B-1
The capability of lophirones B and C to extenuate aflatoxin B-1 (AFB(1))-mediated onslaught on cellular proteins, lipids, and DNA was investigated for 6 weeks. Lophirones B and C significantly (P < 0.05) increase the expression and specific activity of cytoprotective enzymes (glutathione-S-transferase, nioctinamide adenine dicludeotide: quinone oxidoreductase-1, epoxide hydrolase, and uridyl glucuronosyl transferase). There was significant (P < 0.05) reduction in the level of antioxidant system in AFB(1)-induced hepatocarcinogenesis. Furthermore, lophirones B and C significantly (P < 0.05) attenuated AFB(1)-mediated decrease in the specific activities of antioxidant enzymes. Oxidative stress biomarkers, malondialdehyde, lipid hydroperoxides, conjugated dienes, protein carbonyl, and fragmented DNA were significantly (P < 0.05) elevated in AFB(1)-treated rats. Although lophirones B and C did not significantly (P < 0.05) alter these biomarkers, an AFB(1)-mediated increase in these biomarkers was significantly attenuated. Results obtained showed that lophirones B and C extenuate AFB(1)-mediated onslaught on cellular proteins, lipids, and DNA by enhancing nuclear erythroid-related factor-2 expression. (C) 2014 Wiley Periodicals, Inc.
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