The present invention provides methods for reducing
amyloid beta formation and for treating diseases associated with the accumulation of
amyloid beta. The present invention provides (1) A β aggregation inhibition by A β
Oligomer /
Fibril formation inhibition, (2) BACE-1 reduction through β-Amyloidogenic
Processing inhibition, (3) increased
cerebral blood flow, (4) activation of Neuronal
cell Death inhibition and
Neurogenesis, Synaptogenesis,
Angiogenesis promotion, (5) DKK-1 inhibition by Wnt Signaling and Aβ production
Positive Feedback Loop for inhibition of APP to suppress Aβ accumulation, (6)
Autophagy activation by cells, by providing Mirodenafil,
Sildenafil,
Vardenafil,
Tadalafil, Udenafil, Dasantafil, and
Avanafil and a Pharmaceutically Acceptable Salt, Solvate, and
Hydrate in selected compounds key of ingredient containing
drug compound composition, and this with the treatment method provided.