Measuring the Fornix: A New Biomarker for Alzheimer's
The search for effective dementia treatments requires precise tools to measure whether new therapies are actually making a difference. Recently, researchers at the Cleveland Clinic and the Cleveland Alzheimer’s Disease Research Center (CADRC) published a study in the journal Magnetic Resonance Imaging focused on a key brain structure: the fornix.
Targeting the Brain's Memory Circuit
Led by Ken Sakaie, Assistant Professor at the Cleveland Clinic Lerner College of Medicine and a co-investigator for the Neuroimaging Core of the CADRC, the study used imaging methods to look directly at the fornix. This small structure serves as a central hub for the brain circuit responsible for forming memories.
The study showed that imaging could measure the integrity of the fornix. Most importantly, this measured integrity aligned with cognitive test scores, differentiating between individuals with normal cognition, mild cognitive impairment, and Alzheimer’s disease.
Accelerating Treatment Development
This imaging approach is a significant step forward because it can determine if treatments are effectively slowing or preventing cognitive decline. By providing a reliable biomarker for early changes, this method may help accelerate the development of new treatments for Alzheimer’s disease.

Dr. Katherine Koenig, Dr. Ken Sakaie, Dr. Jagan Pillai



