Depressive symptoms and plasma markers of Alzheimer's disease and neurodegeneration: a coordinated meta-analysis of 8 cohort studies

Depression has been coined as one of the main risk factors for Alzheimer's disease (AD) dementia (1-4). One longitudinal study in older adults found that with every increasing point on a depressive symptom scale, the risk of AD increased by 19% (5). Another study found that high levels of depressive symptoms were associated with a 50% increased risk of dementia (6). However, the mechanistic relationship between the two is not yet fully understood. Some studies have highlighted depression as a possible risk factor while others suggest that depression may in fact be an early manifestation of underlying AD (7,8).
Source: The American Journal of Geriatric Psychiatry - Category: Geriatrics Authors: Tags: Regular Research Article Source Type: research