In a 6-month clinical trial, soy protein intervention had no effect on proliferative, and apoptotic molecular markers (i.e., EGFR, Bax:Bcl-2, Bax:PCNA ratios) in high-risk and/or with low-grade PCa disease patients, but alcohol-washed soy protein intake reduced tissue levels of PCNA and Bax in patients relative to milk protein treatment.36 The gene discussed is PCNA; the disease is posterior cortical atrophy.