Article Summary: Can a Nasal Spray Help Prevent Alzheimer’s?
Researchers at Texas A&M have developed a nasal spray that delivers microRNA-loaded extracellular vesicles directly into brain tissue, effectively suppressing inflammation pathways closely linked to Alzheimer’s and age-related cognitive decline. It also revitalized damaged mitochondria and improved brain cell function. In animal models, just two doses produced significant improvements in memory and recognition that lasted for months. With 42% of Americans over 55 projected to develop dementia and new cases expected to double by 2060, the findings represent a significant breakthrough — and a growing body of evidence that neuroinflammation is both a primary driver of cognitive decline and a viable therapeutic target. This research opens a promising new frontier in dementia prevention and treatment. Nicole’s Apothecary Brain Bundle is also discussed to naturally lower neuroinflammation, improve cognitive function, and boost overall brain health.
The Alarming Truth About Cognitive Decline
The National Institutes of Health estimates that 42% of Americans over the age of 55 will eventually develop dementia, with new cases per year doubling by 2060. Alzheimer’s and dementia, which currently impacts over 6 million Americans, claims more than 100,000 lives annually.1,2 These startling numbers are compelling researchers to develop effective treatments and potentially find a solution to prevent the condition altogether. Could a simple nasal spray be the answer?
A Novel Approach to The Rise in Dementia
“The pending population boom in dementia cases poses significant challenges for health policymakers, in particular, who must refocus their efforts on strategies to minimize dementia risk and the severity of dementia cases, as well as plans to provide more health care services for those with dementia.” — Josef Coresh, MD at Johns Hopkins Bloomberg School of Public Health1,2
With the dramatic rise of dementia and Alzheimer’s disease in our modern age, researchers are racing to find effective treatment options, which has led one team at Texas A&M to develop a nasal spray that helps to reduce inflammation in the brain.3,4 They believe this novel approach may lead to new therapies for addressing cognitive decline, brain fog, and dementia — including Alzheimer’s. It’s an exciting area of study that holds great promise.
Seeking an all-natural approach to brain health? See Nicole’s Apothecary Brain Bundle for enhancing cognitive function, cooling inflammation, and improving brain health.
Researchers have been aware for years of the connection between neuroinflammation and declining memory, clarity, and the brain’s ability to adapt to new situations. It’s also a significant underlying factor of neurodegenerative diseases such as Alzheimer’s.
Scientists are now re-evaluating the long-held belief that such cognitive decline is an inescapable downward spiral, suggesting that this trajectory may actually be reversible.
For the study, researchers focused on microscopic particles called extracellular vesicles (EVs), which are tiny transporters of genetic material between cells. The team loaded the EVs with microRNAs, which are compounds that regulate crucial biological processes in the brain, which act like master modulators for gene and signaling pathways.
The EVs were delivered via a nasal spray, thereby bypassing the brain’s protective barrier so the molecules could travel directly into brain tissue. Once there, the EVs targeted immune cells that are involved in chronic inflammation. Their findings indicate the therapy effectively suppressed inflammatory systems, including the NLRP3 inflammasome and the cGAS-STING signaling pathways, which are closely associated with aging-related brain inflammation.
Moreover, the treatment went far beyond simply reducing inflammation. It also restored activity in mitochondria — tiny cellular structures that are involved in producing energy. The aging process and chronic inflammation can damage mitochondria, which hastens cognitive decline. When mitochondrial function improved after the treatment, the team found it helped brain cells recover their ability to process and store information. The animal models showed significant improvement with memory and recognition tasks compared to the untreated controls.
Incredibly, the effects arose quickly and lasted for months after just two doses. It marks an extraordinary leap in treating one of the fastest growing health crises sweeping across the United States and worldwide. However, the therapy could take years before it becomes widely available for use in humans.
The research was supported by the National Institute on Aging (NIA) and published in the Journal of Extracellular Vesicles.4
The Takeaway
This groundbreaking study demonstrates that cognitive deterioration is not an unchangeable fate. The brain responds and improves when given the proper support. The Texas A&M findings are exciting precisely because they confirm what the science has been telling us for some time — that neuroinflammation is one of the most significant factors of cognitive decline and by targeting it, we can significantly improve brain health with lasting results.
While this nasal spray therapy may take time until it’s widely available, you don’t have to wait to start protecting your brain. The botanicals I selected for my Brain Bundle — including Lion’s Mane, Reishi, Cordyceps medicinal mushrooms, along with Lemon Balm — have well-documented neuroprotective properties that work synergistically to help reduce inflammation, support cognitive function, and enhance the brain’s ability to process and store information.
Needless to say, the rise in dementia is alarming. However, research also shows us that what we do today matters. Start giving your brain the daily support it deserves. Visit Nicole’s Apothecary.com today.
Nicole Apelian
Actions Steps & FAQs
Action Steps
- Prioritize an anti-inflammatory diet rich in leafy greens, berries, fatty fish, and healthy fats — all of which support brain health and help reduce neuroinflammation.
- Protect your sleep. Deep, restorative sleep is when the brain clears metabolic waste through the glymphatic system — a process closely tied to Alzheimer’s risk reduction. See Nicole’s Apothecary Sleep Blend for an effective herbal formulation.
- Move daily. Even moderate physical activity has been shown to reduce inflammatory markers in the brain and support the growth of new neural connections.
- Manage chronic stress. Sustained cortisol elevation accelerates neuroinflammation and is a known risk factor for cognitive decline. Adaptogenic herbs, breathwork, and contemplative practices all offer measurable benefit. Nicole’s Apothecary Anxiety & Stress Blend is an all-in-one herbal solution.
- Support your brain with clinically studied botanicals. Lion’s mane stimulates nerve growth factor production, reishi and cordyceps modulates neuroinflammation, and lemon balm supports calm, focused cognition. Nicole’s Apothecary Brain Bundle combines all four in therapeutic formulations designed to work synergistically.
- Stay cognitively active. Reading, learning new skills, and social engagement all build cognitive reserve — the brain’s resilience against decline.
Frequently Asked Questions: Can Neuroinflammation Be Reversed?
What is the nasal spray being developed to treat dementia?
Researchers at Texas A&M developed a nasal spray that delivers microRNA-loaded extracellular vesicles directly into brain tissue, bypassing the blood-brain barrier. Once in the brain, these particles target immune cells involved in chronic inflammation — a primary driver of Alzheimer’s and cognitive decline.
How does neuroinflammation contribute to dementia and Alzheimer’s disease?
Chronic neuroinflammation damages brain cells, disrupts memory and clarity, impairs the brain’s ability to adapt to new information, and accelerates the progression of neurodegenerative diseases such as dementia and Alzheimer’s. It is now considered one of the most significant and addressable underlying factors of cognitive decline.
How effective was the nasal spray in the study?
In animal models, just two doses produced significant improvements in memory and recognition tasks that lasted for months. The treatment also restored mitochondrial function, helping brain cells recover their ability to process and store information.
When will the dementia nasal spray be available for humans?
The therapy is still in early research stages and could take several years before human trials begin. The research was published in the Journal of Extracellular Vesicles and supported by the National Institute on Aging.
What can I do now to protect my brain from cognitive decline?
While the nasal spray is not yet available, research supports taking a proactive approach to brain health through anti-inflammatory nutrition, quality sleep, regular movement, stress reduction, and evidence-backed botanicals such as Lion’s Mane, Reishi, Cordyceps, and Lemon Balm — all of which are included in Nicole’s Apothecary Brain Bundle.
Nicole’s Apothecary Products in this Post
Anxiety & Stress Tincture
Brain Bundle
Sleep Blend Tincture
References
- “Risk and future burden of dementia in the United States” National Institutes of Health (NIH), by Brian Doctrow, Ph.D.
- Lifetime risk and projected burden of dementia. Fang M, Hu J, Weiss J, Knopman DS, Albert M, Windham BG, Walker KA, Sharrett AR, Gottesman RF, Lutsey PL, Mosley T, Selvin E, Coresh J. Nat Med. 2025 Jan 13. doi: 10.1038/s41591-024-03340-9.
- Texas A&M University. “Scientists say they’ve reversed brain aging with a simple nasal spray.” ScienceDaily. ScienceDaily, 26 May 2026.
- Leelavathi N. Madhu, Maheedhar Kodali, Shama Rao, Sahithi Attaluri, Raghavendra Upadhya, Goutham Shankar, Bing Shuai, Yogish Somayaji, Shruthi V. Ganesh, Vignesh S. Kumar, Jeswin E. James, Padmashri A. Shetty, Avery LeMaire, Xiaolan Rao, James J Cai, Ashok K. Shetty. Intranasal Human NSC‐Derived EVs Therapy Can Restrain Inflammatory Microglial Transcriptome, and NLRP3 and cGAS‐STING Signalling, in Aged Hippocampus. Journal of Extracellular Vesicles, 2026; 15 (2) DOI: 10.1002/jev2.70232.
