KLK3 and posterior cortical atrophy: In this study, we also demonstrated that green tea catechins administered for one year at a dose of 200 mgs EGCG BID accumulated in the plasma, reduced serum Prostate Specific Antigen (PSA), and reduced cumulative progression from HGPIN to ASAP or PCa, without producing toxicities (Kumar et al., 2015) [43].