Phosphodiesterase-5 Inhibitors: Action on the Signaling Pathways of Neuroinflammation, Neurodegeneration, and Cognition. Peixoto C A, Nunes A K S, Garcia-Osta A Mediators Inflamm. 2015; 2015:940207. Epub 2015 Dec 03. PMID: 26770022. Abstract CommentRecommendBookmarkWatch