Prostate cancer is a quiet killer. In most men, it's treatable. However, in some cases, it resists all known therapies and turns extremely deadly. A new discovery at Cold Spring Harbor Laboratory (CSHL) points to a potentially groundbreaking solution. CSHL Professor Lloyd Trotman's lab has found that the pro-oxidant supplement menadione slows prostate cancer progression in mice. The supplement is a precursor to vitamin K, commonly found in leafy greens. In 2001, the National Cancer Institute's SELECT trial sought to determine if an antioxidant vitamin E supplement could successfully treat or prevent prostate cancer. However, after just three years, participants...