Serum beta-secretase 1 (BACE1) activity as candidate biomarker for late-onset Alzheimer's disease. Alzforum, 22 Nov 2019 Cervellati C, Trentini A, Rosta V, Passaro A, Bosi C, Sanz JM, Bonazzi S, Pacifico S, Seripa D, Valacchi G, Guerini R, Zuliani G.