Central alterations are synergistically worsened in APP/PS1xdb/db mice.
Early central atrophy, tau pathology and inflammation is detected in APP/PS1xdb/db mice.
APP/PS1xdb/db mice show a shift in soluble/insoluble Aβ levels towards more toxic soluble species.
Spontaneous central bleeding synergistically worsened in APP/PS1xdb/db mice.
Cognition is severely impaired in APP/PS1xdb/db mice in an age dependent manner.