Affiliation:
1. Traditional Chinese Medicine Institute of Anhui Dabie Mountain West Anhui University Lu'an City 237012 China
2. College of Biology and Pharmaceutical Engineering West Anhui University Lu'an City 237012 China
3. Anhui Engineering Research Center for Eco-agriculture of Traditional Chinese Medicine Lu'an City 237012 China
Abstract
AbstractDendrobium huoshanense is an important Traditional Chinese medicine that thickens the stomach and intestines. Its active ingredient Dendrobium huoshanense polysaccharide (DHP), was revealed to relieve the symptoms of liver injury. However, its mechanism of action remains poorly understood. This study aimed to investigate the mechanism of DHP in protecting the liver. The effects of DHP on lipid levels, liver function, and intestinal barrier function were investigated in mice with high‐fat diet‐induced liver damage. Changes in the gut flora and their metabolites were analyzed using 16S rRNA sequencing and metabolomics. The results showed that DHP reduced lipid levels, liver injury, and intestinal permeability. DHP altered the intestinal flora structure and increased the relative abundance of Bifidobacterium animalis and Clostridium disporicum. Furthermore, fecal metabolomics revealed that DHP altered fecal metabolites and significantly increased levels of gut‐derived metabolites, spermidine, and indole, which have been reported to inhibit liver injury and improve lipid metabolism and the intestinal barrier. Correlation analysis showed that spermidine and indole levels were significantly negatively correlated with liver injury‐related parameters and positively correlated with the intestinal species B. animalis enriched by DHP. Overall, this study confirmed that DHP prevented liver injury by regulating intestinal microbiota dysbiosis and fecal metabolites.
Funder
China Academy of Chinese Medical Sciences
West Anhui University
Subject
Molecular Biology,Molecular Medicine,General Chemistry,Biochemistry,General Medicine,Bioengineering