New Nasal Spray Reverses Brain Aging and Memory Loss

Researchers at Texas A&M University have developed a nasal spray that reverses brain aging in preclinical models, restoring memory and reducing neuroinflammation with just two doses.

The treatment uses extracellular vesicles — microscopic delivery parcels — administered intranasally to target the brain directly. In aging models, the therapy significantly reduced chronic inflammation, recharged mitochondrial function, and improved cognitive performance, with effects lasting months after only two doses.

According to the study, treated models showed restored ability to recognize familiar objects and adapt to environmental changes, key indicators of healthy memory function. The therapy was equally effective in both male and female subjects, addressing a common limitation in aging research where sex-based differences often influence outcomes.

Maheedhar Kodali, a member of the research team, explained that the nasal spray targets “neuroinflammaging” — the persistent, low-grade inflammation in the brain that contributes to cognitive decline and increases the risk of neurodegenerative diseases like Alzheimer’s. By reducing this inflammation, the therapy helps restore cellular energy production and neural resilience.

The researchers emphasize that the therapy is non-invasive and could be adapted for broader applications beyond aging, including aiding recovery in stroke survivors or slowing the progression of Alzheimer’s disease. Texas A&M has filed a U.S. Patent for the technology, signaling progress toward potential clinical development.

While the results are promising, the study was conducted in preclinical models, and further research is needed to determine safety and efficacy in humans. The team notes that the therapy does not claim to cure aging or neurodegenerative diseases but aims to address underlying mechanisms of cognitive decline.

As the global population ages, interventions that preserve cognitive function without invasive procedures represent a significant area of scientific interest. This nasal spray approach offers a novel strategy for delivering therapeutics directly to the brain, bypassing the blood-brain barrier through intranasal administration.