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Abstract Title:

Selenium-Rich Yeast protects against aluminum-induced peroxidation of lipide and inflammation in mice liver.

Abstract Source:

Biometals. 2018 Oct 4. Epub 2018 Oct 4. PMID: 30288658

Abstract Author(s):

Junchong Luo, Xiaowen Li, Xinran Li, Yongming He, Mengdan Zhang, Changyu Cao, Kai Wang

Article Affiliation:

Junchong Luo

Abstract:

To investigate the effect of Selenium Rich Yeast (SeY) on hepatotoxicity of Aluminium (Al), SeY (0.1 mg/kg) was orally administrated to aluminium-exposed mice (10 mg/kg) for 28 days. The risk of oxidative stress was assessed by detecting the total antioxidant capacity (T-AOC), catalase activity, HOcontent, and mRNA levels of the Keap1/Nrf-2/HO-1 pathway. Inflammatory reactions were assessed by detecting the mRNA levels of inflammatory biomarkers. Our results showed that SeY protected against the liver histological changes induce by Al. The body weight gain of mice treated with SeY + Al restore to normal compare with mice exposed to Al alone. Al treatment significantly decreased the activities of antioxidant enzymes, reduced T-AOC levels, and up-regulated the mRNA level of Nrf2 and HO-1, thereby ultimately leading to peroxidation. SeY shown a significant protective effectagainst oxidative stress caused by Al. In addition, Al exposure induced inflammatory responses in rat liver by promoting the release of inflammatory cytokines (TNF-a, NF-kB, TNF-R1, IL-1, IL-6, and COX-2). SeY protected against changes in liver by regulating the mRNA expression levels of inflammatory factors. These results suggested that Se protected the liver from the Al-induced hepatotoxicity by regulating the mRNA level of Keap1/Nrf2/HO-1, and inhibited inflammatory responses by down-regulating the expression level of inflammatory cytokine.

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