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News for Healthier Living
Cleveland Research Team Identifies Key Driver of Age-Related Cognitive Decline
 * Researchers at University Hospitals, Case Western Reserve University and the Cleveland VA identified a key molecular driver of age-related cognitive decline, offering a potential path toward the development of new treatments.
* Published today in PNAS, the study pinpoints a key protein behind age-related breakdown of the blood-brain barrier (BBB), which leads to cognitive decline.
* The research team showed that loss of a protein called KLF4 in blood vessel cells weakens the BBB and accelerates brain aging.
* In preclinical models, this loss impaired BBB function and proper coupling of blood supply with neuronal activity, which triggered neurodegeneration, inflammation and cognitive decline -- changes typically seen only in much older individuals.
* The findings point to KLF4 as a promising therapeutic target, with future treatments potentially aimed at preserving or restoring its function to protect the aging brain.
June 19, 2026
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