Insulin and hippocampal subregion volume in older adults

Type 2 diabetes (DM) is a risk factor for Alzheimer's disease (AD) and other dementias. DM, which is more common in Mexican Americans (MA) than non‐Hispanic Whites (NHW), is associated with high blood glucose levels and often with hyperinsulinemia. Hippocampal volume is an early neuroimaging marker of AD. We examined the relationship of blood insulin with hippocampal subregion volumes in MA and NHW.