Biomed Chromatogr. 2023 Jan 5:e5578. doi: 10.1002/bmc.5578. Online ahead of print.
In this study, we utilized a serum metabolomics methodology based on gas chromatography coupled with mass spectrometry (GC/MS) to investigate the liver-protective effects of raw and stir-fried semens of Hovenia dulcis in rats models of carbon tetrachloride-induced liver injury. Multivariate statistical analysis, such as principal component analysis (PCA) and orthogonal partial least squares discriminant analysis (OPLS-DA), were conducted to examine changes in the metabolic state of rats with carbon tetrachloride-induced liver injury, as well as the recovery pattern of rats pretreated with the raw and stir-fried semens of Hovenia dulcis. Liver tissues were subjected to histopathological examination. A total of 47 biomarkers were predicted to contribute to the dynamic pathological processes in the liver injury, such as phenylalanine, glutamic acid, glycine, arachidonic acid and linoleic acid. Further analysis revealed that pathways associated with phenylalanine, tyrosine and tryptophan biosynthesis, and linoleic acid metabolism were altered in the injured liver, and that pretreatment with raw and stir-fried semens of Hovenia dulcis abolished the changes in the aforementioned metabolic pathways.