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Abstract Title:

Hepatoprotective Effects of Selenium-Enriched Probiotics Supplementation on Heat-Stressed Wistar Rat Through Anti-Inflammatory and Antioxidant Effects.

Abstract Source:

Biol Trace Elem Res. 2020 Nov 7. Epub 2020 Nov 7. PMID: 33161525

Abstract Author(s):

Rahmani Mohammad Malyar, Emal Naseri, Hu Li, Ilyas Ali, Rawan Ahmad Farid, Dandan Liu, Khushdil Maroof, Maazullah Nasim, Sayed Attaul Haq Banuree, Kehe Huang, Kevin J Waldron, Xingxiang Chen

Article Affiliation:

Rahmani Mohammad Malyar

Abstract:

The purpose of this study was to elucidate the effects of selenium-enriched probiotics on the liver of heat-stressed Wistar rats. Ten-week-old male rats were assigned to four groups: control (Con); high temperature (HT); high temperature plus probiotics (HT + P: 10 CFU/mL Lactobacillus acidophilus and 10 CFU/mL Saccharomyces cerevisiae); or high temperature plus selenium-enriched probiotics (HT + SeP: 0.3 mg/kg Se, 10 CFU/mL L. acidophilus and 10 CFU/mL S. cerevisiae). The HT, HT + P, and HT + SeP groups were maintained at higher ambient temperature (40-42 °C), while the control group was kept at room temperature (25 °C). After 42 days of thermal exposure, blood and liver tissues were collected and analyzed for morphologicaland molecular markers of liver physiology. The body weight of rats in the HT group decreased but liver weight and live index were increased. Histological examination showed dilation of liver sinusoids and congestion of interstitial veins in HT group. Moreover, the histomorphology of the liver in HT + P and HT + SeP groups was restored, and the serum AST, ALT, ALP, LDH, and hepatic MDA level decreased significantly, but the serum total protein level and the liver SOD, T-AOC, and GSH-PX activities were increased significantly relative to the HT group. In addition, the mRNA level of Gpx1, SOD1, Nrf2, and Bcl-2 was significantly increased, while the expression level of Bax, IL-6, TNF-α, COX-2, NF-κB, α-SMA, TGFβ1, Collagen I, HSP70, and HSP90 was significantly decreased in liver tissues after SeP supplementation. We concluded that SeP can protect Wistar rats from oxidative stress,inflammation, apoptosis, and liver fibrosis induced by heat stress.

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