A metabolomics investigation of the treatment effect of Qianliexin (QLX) capsules was conducted on rats with benign prostatic hyperplasia (BPH) induced by testosterone propionate. Establishment of the BPH model was confirmed using the prostatic index. Hematoxylin and eosin (HE) staining for TGF-β, EGFR, collagen, IL-1 β, TNF-α was performed and changes in urine volume were measured. Urine and serum samples were collected from three groups, including a control group, a BPH model group and a QLX-treated group and subjected to metabolomics profiling based on ultrahigh-performance liquid chromatography-mass spectrometry. Pharmacodynamics analysis showed that the QLX group had significantly lower histopathological damage, fibrosis damage, and inflammation and higher urine output compared with the model group. Twenty-two potential biomarkers were identified in urine samples and 23 metabolites were identified in plasma samples. Alterations in metabolic patterns were evident in all sample types. The treatment effects of QLX appear to involve various metabolic pathways including lipid metabolism, fatty acid metabolism and purine generation and significantly reduced the pathological symptoms and related biochemical indicators of BPH and improved the level of potential marker metabolites. This comprehensive study suggested that differential markers provided insights into the metabolic pathways involved in BPH and the treatment effects of QLX.
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