Dr. Raisz is Professor of Medicine and Program Director of the General Clinical Research Center at the University of Connecticut Health Center. He has been carrying out laboratory and clinical studies in the field of osteoporosis and bone metabolism for over 40 years. He has mentored a large number of investigators in these areas both here at the University of Connecticut and previously at the University of Rochester School of Medicine. His current studies include an analysis of the effects of estrogen and androgen on the expression of cytokines and growth factors in bone, which is being carried out in both humans and animal models, studies of the role of prostaglandins in bone metabolism using transgenic mice, studies on the effects of progestins on bone turnover in postmenopausal women and tissue culture and animal studies on new antiresorptive and anabolic agents carried out in collaboration with the pharmaceutical industry.