David Mangelsdorf
David J. Mangelsdorf is an American biologist and chemist, currently the Alfred J. Gilman Distinguished Chair in Pharmacology, Raymond and Ellen Willie Distinguished Chair in Molecular Neuropharmacology at University of Texas Southwestern Medical Center. In 2008, he was elected to the National Academy of Sciences. He, along with Steven Kliewer, identified the ligands and physiologic functions of a number of orphan nuclear receptors that then discovered two new signaling pathways mediated by the endocrine factors FGF19 and FGF21, which has become a significant accomplishment in the field.