Sildenafil ameliorates cognitive deficits and tau pathology in a senescence-accelerated mouse model.
Orejana L, Barros-Miñones L, Jordán J, Puerta E, Aguirre N. Sildenafil ameliorates cognitive deficits and tau pathology in a senescence-accelerated mouse model. Neurobiol Aging. 2012 Mar; 33(3):625.e11-20.