However, in the case of IL-18, the correlation analysis showed that in the patients with BPH, in prostate epithelial cells, the percentage of IL-18 (1+) cells negatively correlated with both the TG/HDL ratio (R = −0.500, p = 0.015) and the LDL/HDL ratio (R = −0.375, p = 0.034) (Supplementary Table 6). Here, IL18 is linked to benign prostatic hyperplasia.