It involves the regulation of sex hormone levels, growth factors, and anti-epithelial cell apoptosis processes, demonstrating the'protective effect of XJP on the prostate tissue as well as PSA, DHT, EGF, bFGF, VEGF, Bax, caspase-3, TGF-β1, and IGF-1 serum levels in BPH rats. The gene discussed is BAX; the disease is benign prostatic hyperplasia.