A single dose of the γ-secretase inhibitor semagacestat alters the cerebrospinal fluid peptidome in humans. Alzforum, 11 Mar 2016 Hölttä M, Dean RA, Siemers E, Mawuenyega KG, Sigurdson W, May PC, Holtzman DM, Portelius E, Zetterberg H, Bateman RJ, Blennow K…