New Research Reinforces the Promise of Precision Medicine
For more than a decade, I’ve closely followed the work of neurologist Dr. Dale Bredesen, beginning with his pioneering research during his years at UCLA. Long before “precision medicine” became a common phrase, Dr. Bredesen was asking a different question than most Alzheimer’s researchers.
What if Alzheimer’s disease isn’t caused by a single problem requiring a single drug, but rather by dozens of interacting factors that must each be identified and corrected?
That concept resonated deeply with me because it mirrors the philosophy we’ve embraced for years in integrative medicine. Rather than simply naming a disease and prescribing a medication, we ask a broader question: Why did this particular patient develop this condition?
A recently published paper in Biomedicines provides some of the longest follow-up yet supporting that personalized approach. While this is not the final answer, and certainly not proof that Alzheimer’s has been “cured”, it represents another encouraging step toward treating cognitive decline as a complex, multifactorial condition rather than an inevitable consequence of aging.
The Traditional Approach
For decades, Alzheimer’s treatment has focused largely on medications designed to influence a single pathway.
Drugs such as donepezil (Aricept) and memantine (Namenda) may provide modest symptomatic improvement for some patients, but unfortunately they do not stop the underlying disease process.
More recently, anti-amyloid antibody therapies have demonstrated the ability to remove amyloid plaques and modestly slow cognitive decline in carefully selected patients. However, these therapies remain expensive, require infusion and carry meaningful risks such as brain swelling or bleeding.
A Different Way of Thinking
Dr. Bredesen’s work begins with a simple observation. The brain is extraordinarily metabolically active. If multiple systems that support brain health begin to fail simultaneously, cognition suffers.
Instead of assuming every patient has the same disease, his protocol attempts to identify the unique combination of contributors in each individual, including:
- Insulin resistance and metabolic dysfunction
- Chronic inflammation
- Nutrient deficiencies
- Hormonal imbalances
- Sleep disorders such as sleep apnea
- Chronic infections
- Environmental toxin exposure
- Vascular disease
- Oxidative stress
- Physical inactivity
- Chronic psychological stress
The goal is not one treatment. It is many targeted interventions working together.
What This New Study Showed
The newly published report describes several patients who experienced sustained cognitive improvement while following a comprehensive precision medicine protocol. Remarkably, some maintained those improvements for many years – one of the first reports describing stability extending beyond a decade.
Rather than applying the same recipe to everyone, treatment was tailored according to each patient’s laboratory testing, imaging, genetics, and clinical history.
In my own practice, just in recent months, I’ve seen cognition significantly improved by correcting nutrient deficiencies, restoring thyroid function, replacing the brain supporting adrenal hormone called pregnenolone, or treating Lyme disease. Humbly, I’ve had other cases where we couldn’t quite identify the underlying causes.
Yet I’ve also seen merely supportive therapies such as mitochondrial support through NAD infusions or cellular membrane support with plasmalogens at least improve cognitive function. The point is a multi-pronged approach often helps.
Why This Matters
One of the most important messages from this paper is that cognitive decline is often not the result of a single malfunction.
Think of the brain like an orchestra. If only the violin is out of tune, the solution is simple. But if the strings are off-key, the percussion is rushing, the brass is missing notes, and the conductor cannot hear the musicians, no single correction restores the music.
The same appears true for many patients with cognitive decline. When multiple small problems are corrected simultaneously, the brain may recover function far better than when only one pathway is treated.
Important Caveats
As encouraging as these results are, scientific honesty requires acknowledging the study’s limitations.
This publication is a case series, not a randomized controlled trial. It describes a relatively small number of carefully selected patients and therefore cannot prove that the protocol alone caused the improvements. Larger prospective clinical trials are still needed before definitive conclusions can be drawn. It is also important to recognize that not every patient responds.
Advanced Alzheimer’s disease, where extensive neuronal loss has already occurred, is much less likely to demonstrate meaningful recovery than very early disease or mild cognitive impairment.
This reinforces one of the central themes emerging across Alzheimer’s research. Earlier identification provides the greatest opportunity for intervention.
How This Influences Our Practice
This philosophy has influenced our own approach for many years. When evaluating patients with memory concerns, we don’t simply ask whether Alzheimer’s disease is present. We also investigate whether there are reversible contributors affecting brain function.
Some of these issues may not cause Alzheimer’s by themselves, but each can impair cognitive performance, and many are treatable.
Hope Without Hype
One of the greatest dangers in medicine is promising too much. Another is dismissing promising new ideas before they have been adequately tested. The truth usually lies somewhere between those extremes.
Dr. Bredesen’s work should not be viewed as proof that Alzheimer’s disease has been solved. Nor should it be dismissed because it challenges conventional thinking.
Instead, it represents a growing body of evidence suggesting that comprehensive, personalized care may improve outcomes for at least some patients, particularly when intervention begins early.
As additional controlled trials are completed, we will gain a clearer understanding of which patients benefit most and which elements of these protocols contribute the greatest effect.
Until then, the most prudent course remains the same. Take care of the brain long before symptoms appear. Exercise regularly. Sleep well. Control blood sugar and blood pressure. Eat nutrient-dense whole foods. Stay intellectually curious. Maintain meaningful relationships.
And when cognitive changes arise, look beyond simply naming the diagnosis – ask why they developed in the first place. That philosophy has guided my practice for many years, and it continues to shape the way we care for patients today.
Author
Scott Rollins, MD, is Board Certified with the American Board of Family Practice and the American Board of Anti-Aging and Regenerative Medicine. He specializes in bioidentical hormone replacement for men and women, thyroid and adrenal disorders, fibromyalgia and other complex medical conditions. He is founder and medical director of the Integrative Medicine Center of Western Colorado (www.imcwc.com) and Bellezza Laser Aesthetics (www.bellezzalaser.com). Call (970) 245-6911 for an appointment or more information.
