In the BC group, the median DJ-1 concentration was 21.93 ng/mL (range: 0.00–235.06 ng/mL), which was significantly higher than the concentrations in the urolithiasis and healthy participant groups (median: 9.67 ng/mL [range: 4.04–20.37 ng/mL] and 6.58 ng/mL [0.75–30.39 ng/mL], respectively, each p < 0.001). The gene discussed is PARK7; the disease is urolithiasis.