Psychological traits may uncover why Alzheimer’s biology differs between patients

A postmortem multi-omics study suggests that long-standing traits such as neuroticism, loneliness, and purpose in life may track distinct molecular routes through Alzheimer’s dementia, offering clues to disease heterogeneity that standard pathology alone does not explain.

Study: Associations of stable psychological traits with multi-omic subtypes of Alzheimer’s dementia. Image Credit: Inna Kot / Shutterstock

In a recent study published in the journal Translational Psychiatry, a group of researchers investigated whether long-standing psychological traits are associated with specific multi-omics molecular subtypes of Alzheimer’s dementia.

Did you know that psychological factors such as neuroticism, loneliness, and a lack of purpose in life are strongly linked to a greater risk of cognitive decline and dementia? Previous research indicates that psychological variables may affect cognition and dementia risk, but biological mechanisms connecting these traits to Alzheimer’s disease (AD) remain poorly understood.