In the fight against aggressive prostate cancer, researchers are discovering that what’s old is new again. Cork tree bark, an herbal remedy that’s been around for centuries, is being studied as a way to shrink prostate tumors. Cork tree bark has long been used in Asia to fight inflammation. Pratap Kumar, PhD, professor of molecular medicine at the University of Texas Health in San Antonio explained to Ivanhoe, “People in China, they take this bark, they actually make a concoction out of this bark. And, that concoction they drink; it’s been going on for ages.” Kumar and his colleagues decided to test cork tree bark extract, also called Nexrutine, to fight dangerous body inflammation, that often contributes to cancer development. …What surprised them is that the cork extract was expected to attack inflammation in the body, but it also went after the tumor growth itself.