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Non-invasive urinary metabolomic profiling discriminates prostate cancer from benign prostatic hyperplasia.
INTRODUCTION: Prostate cancer (PCa) is one of the most common malignancies in men worldwide. Serum prostate specific antigen (PSA) level has been extensively used as a biomarker to detect PCa. However, PSA is not cancer-specific and various non-malignant conditions, including benign prostatic hyperplasia (BPH), can cause a rise in PSA blood levels, thus leading to many false positive results.
OBJECTIVES: In this study, we evaluated the potential of urinary metabolomic profiling for discriminating PCa from BPH.
METHODS: Urine samples from 64 PCa patients and 51 individuals diagnosed with BPH were analysed using (1)H nuclear magnetic resonance ((1)H-NMR). Comparative analysis of urinary metabolomic profiles was carried out using multivariate and univariate statistical approaches.
RESULTS: The urine metabolomic profile of PCa patients is characterised by increased concentrations of branched-chain amino acids (BCAA), glutamate and pseudouridine, and decreased concentrations of glycine, dimethylglycine, fumarate and 4-imidazole-acetate compared with individuals diagnosed with BPH.
CONCLUSION: PCa patients have a specific urinary metabolomic profile. The results of our study underscore the clinical potential of metabolomic profiling to uncover metabolic changes that could be useful to discriminate PCa from BPH in a clinical context.
OBJECTIVES: In this study, we evaluated the potential of urinary metabolomic profiling for discriminating PCa from BPH.
METHODS: Urine samples from 64 PCa patients and 51 individuals diagnosed with BPH were analysed using (1)H nuclear magnetic resonance ((1)H-NMR). Comparative analysis of urinary metabolomic profiles was carried out using multivariate and univariate statistical approaches.
RESULTS: The urine metabolomic profile of PCa patients is characterised by increased concentrations of branched-chain amino acids (BCAA), glutamate and pseudouridine, and decreased concentrations of glycine, dimethylglycine, fumarate and 4-imidazole-acetate compared with individuals diagnosed with BPH.
CONCLUSION: PCa patients have a specific urinary metabolomic profile. The results of our study underscore the clinical potential of metabolomic profiling to uncover metabolic changes that could be useful to discriminate PCa from BPH in a clinical context.
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