CXCL8 and bacterial urinary tract infection: In addition, expressions of cytokines EGF, IFN-γ, IL-8, IL-13, and IL-17A were higher in the urine of the KD group than the FC group after adjusting for age, whereas the expression of IL-1β was significantly higher in the urine of UTI, as compared with the KD group after age adjustment (Table 3).