Selected findings from the Religious Orders Study and Rush Memory and Aging Project.

Area of Science:

• Neuroscience
• Gerontology
• Neuropathology

Background:

• The Religious Orders Study and Rush Memory and Aging Project are longitudinal cohort studies focused on aging and dementia.
• These studies involve annual clinical evaluations and brain donation at death for over 2,700 participants.
• A subset of participants underwent ante-mortem imaging as part of a substudy.

Purpose of the Study:

• To highlight highly cited recent findings from these cohort studies over the past five years.
• To investigate the neuropathology of Alzheimer's disease, mild cognitive impairment, and cognitive aging in individuals without dementia.
• To identify risk factors associated with Alzheimer's disease and its neuropathology.

Main Methods:

• Prospective cohort study design incorporating annual clinical evaluations.
• Brain donation at death for detailed neuropathological analysis.
• Ante-mortem neuroimaging in a subset of participants.

Main Results:

• Findings address the neuropathology across the spectrum of cognitive function, from normal cognition to dementia.
• Identified risk factors contributing to Alzheimer's disease and associated neuropathological changes.
• Clinical and imaging studies provided insights into mild cognitive impairment.

Conclusions:

• Integrating neuropathological data with prospective cohort studies offers valuable insights into cognitive aging.
• These combined approaches are crucial for understanding the complexities of dementia and age-related cognitive decline.
• The research highlights the importance of organ donation in advancing our knowledge of brain health.