The importance of plasma arginine level and its downstream metabolites in diagnosing prostate cancer

There is still no certain threshold value of prostate-specific antigen (PSA) for prostate cancer diagnosis. We aimed to investigate the predictive value of arginine and its metabolites for diagnosing prostate cancer in patients with PSA 4–10 ng/ml and evaluate their usefulness as prognostic tumor markers. Seventy-eight patients with a mean age of 64.50 ± 5.49 years were included in our prospective observational study between November 2016 and...