A pathophysiological study in diabetes-related dementia - A pathophysiology in diabetes-related dementia

We studied amyloid (PiB) PET in 31 patients with cognitive impairment and dementia associated with type 2 diabetes mellitus, including 16 with Alzheimer disease (AD), 10 with mild cognitive impairment (MCI), and 5 with other types of dementia. Our PET study showed that 63% (10/16) of patients with AD, 40% (4/10) of patients with MCI, and 40% (2/5) of patients with other types of dementia showed amyloid positivity. Our results suggest that there are subgroups with neuronal damage independent of amyloid pathology among patients with clinically diagnosed AD associated with DM.