A preliminary study of serum metabolomic profiling in male patients with acute brucellosis

Brucellosis is a significant zoonotic disease that may lead to metabolic profile changes, which remain insufficiently studied. This study utilized an ultra-high performance liquid chromatography coupled with Q Exactive-Orbitrap mass spectrometry (UHPLC-QExactive-Orbitrap MS/MS) to investigate serum samples of acute brucellosis in 32 male patients against 32 well-matched healthy controls. The results revealed nine differential metabolites that correlated with human acute brucellosis, all showing increased levels, except cis-4-hydroxy-D-proline, inosine, hypoxanthine and azelaic acid. These differential metabolites were predominantly involved in metabolic pathways, such as primary bile acid biosynthesis, purine metabolism, taurine and hypotaurine metabolism, and d-amino acid metabolism. This study identified potential metabolite biomarkers of acute brucellosis and laid the foundation for its early diagnosis and prognostic assessment, thus helping to prevent the chronicity of acute brucellosis.