Abstract
The contents of selenomethionine (SeMet) and selenomethylcysteine (SeMC) in Selenium-Enriched black garlic extract (Se-BGE), a popular functional food in Asian countries, were 2.9 ± 0.6 μg/g and 12.2 ± 2.3 μg/g by PITC pre-column derivatization UPLC-MS method. Improved histological injury, significant extension of the median survival time, and attenuated serum levels of alanine aminotransferase, total bilirubin and SOD activity were observed in the acute liver failure (ALF) rats treated with Se-BGE (1.0 g/mL). 1HNMR-based metabonomics revealed that serum levels of lactate, pyruvate, betaine, choline, taurine, and glycine were restored, and 16S rDNA sequencing analysis showed that the composition and number of the intestinal flora were regressed to healthy levels in ALF rats treated by Se-BGE. Serum choline and betaine showed significant correlations with g_Lactobacillus and g_Escherichia. Our findings demonstrated that Se-BGE protects against LPS/D-GalN-induced ALF in rats, possibly due to antioxidation, metabolism, and intestinal flora regulations of Se-BGE.
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