Investigation of the mechanism of nephrotoxicity of nux-vomica by PTGS2/CYP2C9-mediated arachidonic acid pathway and Jian Pi Tong Luo compound's protective effect

Biomed Chromatogr. 2024 Jun;38(6):e5859. doi: 10.1002/bmc.5859. Epub 2024 Apr 15.

Abstract

The clinical effectiveness of nux-vomica in treating rheumatism and arthralgia is noteworthy; however, its nephrotoxicity has sparked global concerns. Hence, there is value in conducting studies on detoxification methods based on traditional Chinese medicine compatibility theory. Blood biochemistry, enzyme-linked immunosorbent assay, and pathological sections were used to evaluate both the nephrotoxicity of nux-vomica and the efficacy of the Jian Pi Tong Luo (JPTL) compound in mitigating this toxicity. Kidney metabolomics, using ultra-high-performance liquid chromatography-quadrupole-time-of-flight-MS (UPLC-Q-TOF-MS), was applied to elucidate the alterations in small-molecule metabolites in vivo. In addition, network pharmacology analysis was used to verify the mechanism and pathways underlying the nephrotoxicity associated with nux-vomica. Finally, essential targets were validated through molecular docking and western blotting. The findings indicated significant nephrotoxicity associated with nux-vomica, while the JPTL compound demonstrated the ability to alleviate this toxicity. The mechanism potentially involves nux-vomica activating the "PTGS2/CYP2C9-phosphatidylcholine-arachidonic acid metabolic pathway." This study establishes a scientific foundation for the clinical use of nux-vomica and lays groundwork for further research and safety assessment of toxic Chinese herbal medicines.

Keywords: detoxification; metabolomics; network pharmacology; nux‐vomica; toxicity mechanism.

MeSH terms

  • Animals
  • Arachidonic Acid* / metabolism
  • Chromatography, High Pressure Liquid / methods
  • Cyclooxygenase 2* / metabolism
  • Cytochrome P-450 CYP2C9 / genetics
  • Cytochrome P-450 CYP2C9 / metabolism
  • Drugs, Chinese Herbal* / chemistry
  • Drugs, Chinese Herbal* / pharmacology
  • Kidney* / drug effects
  • Kidney* / metabolism
  • Male
  • Metabolomics / methods
  • Mice
  • Molecular Docking Simulation
  • Rats
  • Rats, Sprague-Dawley