Abstract
Phenylpropionamides in the seed of Cannabis sativa L. (PHS) have a protective effect on neuroinflammation and antioxidant activity. In this study, the UHPLC-Orbitrap-fusion-TMS-based metabolomics approach was used to analyze the serum samples and identify potential biomarkers in Streptozotocin (STZ) induced Alzheimer’s disease (AD) rats. The results revealed that primary bile acid biosynthesis and taurine and hypotaurine metabolism were significantly correlated with STZ-induced AD rats. In addition, the key enzymes in these two pathways were verified at the protein level. The levels of cysteine dioxygenase type I (CDO1), cysteine sulfinic acid decarboxylase (CSAD), cysteamine (2-aminoethanethiol) dioxygenase (ADO), 7α-hydroxylase (CYP7A1), and sterol 12α-hydroxylase (CYP8B1) were the key enzymes affecting the two pathways in AD rats compared with the control group (CON). Furthermore, after a high-dose group of phenylpropionamides in the seed of Cannabis sativa L. (PHS-H) was administrated, the levels of CDO1, CSAD, CYP7A1, and CYP8B1 were all callback. These findings demonstrate for the first time that the anti-AD effect of PHS is associated with the regulation of primary bile acid biosynthesis and taurine and hypotaurine metabolism in STZ-induced AD rats.
Keywords: AD, Cannabis sativa L., metabolomics, phenylpropionamides
© 2023 Wiley-VHCA AG, Zurich, Switzerland.
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