In contrast, the UTI groups had significantly higher levels of U-LDH3 (9.5 ± 1.2 IU/L), U-LDH4 (14.4 ± 2.0 IU/L), and U-LDH5 (27.4 ± 3.9 IU/L) than the KD (4.2 ± 0.7, 4.0 ± 1.2, and 6.6 ± 2.3 IU/L) and VI groups (2.0 ± 2.0, 1.6 ± 3.3, and 3.9 ± 6.4 IU/L) (P < 0.01). The gene discussed is LDHC; the disease is bacterial urinary tract infection.