As previously reported [6], we observed that TRPV1 mRNA expression significantly increased in PCa tissues (1.84 ± 0.12) compared with BPH tissues (0.61 ± 0.01) (Figure 2B); interestingly we found that TRPV1 levels highly correlated with α1D-AR expression (correlation index: r = 0.88; p < 0.0001) (Figure 2C). This evidence concerns the gene TRPV1 and benign prostatic hyperplasia.