A schematic view of a normal (left) and disease-perturbed network (right).

Both nodal points (colored balls) and edges (lines attaching the balls) change in disease, as indicated by changing colors indicative of changing levels and the disappearance of an edge. The nodes and edges change dynamically with disease progression.

Understanding the dynamics of networks permits one to understand the dynamics of the pathophysiology of the disease and think about new approaches to diagnosis, therapy, and even prevention. Taken from http://prion.systemsbiology.net/page/PosterView/display/poster_id/14