Our RT-qPCR analysis of prostatic tissues supported these histological observations: the relative expression levels of the cytokines, interlukin-6 (Il6) and Il8, were increased in prostatic tissues of the BPH group, and these increases were significantly alleviated in the FIN and IP groups (Figure 6B,C). This evidence concerns the gene CXCL8 and benign prostatic hyperplasia.