BONITA SPRINGS, Fla.--(BUSINESS WIRE)--Angelo DiStefano, 50, has struggled with the symptoms of cystic fibrosis his entire life. He was confined to a wheelchair and every breath was a challenge. DiStefano and his wife spent years researching a variety of treatments that could improve his condition. They discovered Zannos G. Grekos, MD, MAAC, FACC, chief medical officer of Regenocyte and a leading pioneer in the field of adult stem cell therapy, and worked with him to determine a new course of treatment.