Though it’s a young scientific field, aging research has the potential to drastically improve lives

Innovative research at Brown is revolutionizing how we approach chronic diseases like Alzheimer’s, cancer, and heart disease.

Inside Brown’s Center on the Biology of Aging, faculty are collaborating on groundbreaking research that challenges what we know about aging and explores how we might extend healthspan—the number of healthy years we can live free from disease. 

For most of human history, average life expectancy hovered somewhere around 40 years. Otherwise healthy people died of infections and trauma, malnutrition and plagues. Modern medicine made most of these acute causes of death things of the past; humans now live into their 70s on average, and well into their 80s in many countries. 

But this longevity has come at a cost. Diseases virtually unknown until the 1800s are now among humanity’s most common killers: cardiovascular disease, stroke, cancer, diabetes, dementia. For too many of us, our “golden years” are a long, painful, and expensive decline as we succumb to the diseases of aging.

Brown is at the forefront of a new era in aging research

But does growing old have to be this way? While aging might be unavoidable, scholars in the field question whether it’s inevitable that we fall apart. 

Brown is leading the charge to find out. The Center on the Biology of Aging was created to unify existing knowledge and to accelerate new research. It’s part of the University’s broader integrated life sciences ecosystem, which is now poised for further expansion with the planned state-of-the-art Danoff Laboratories. The faculty, students, and postdocs involved are getting to the bottom of why our bodies age, why we age at different rates, and why our aging bodies are more susceptible to chronic disease. 

“This is a field that is very young and has been evolving very, very quickly. And it’s a very different way to look at medicine,” says John M. Sedivy, Ph.D., the director of the center. “We look at a more fundamental level and try to do something about the underlying mechanisms that drive a lot of these diseases.”

The team is doing things that aren’t easy—tackling big, unexplored questions and conducting long-shot experiments that are only really possible in academia. Their goal is to transform our fundamental understanding of diseases in order to inform drug development and ultimately improve human health.

Changing the treatment landscape for Alzheimer’s and other age-related diseases

Taking bold risks is paying off—like in their groundbreaking research on Alzheimer’s, which for many is one of the most feared diseases of aging.

A phase one clinical trial testing an HIV therapy in Alzheimer’s patients is now underway at Butler Hospital in Providence. Sedivy says he expects “marginal” effects, but if it proves safe they will design trials with other drugs in the same class. 

Meanwhile, Jill Kreiling, Ph.D., associate director of the center, is exploring early indicators of Alzheimer’s—specifically those that can be found in our saliva. The associate professor of molecular biology, cell biology, and biochemistry and her colleagues at Rhode Island Hospital are analyzing RNAs in tiny particles called extracellular vesicles, which migrate along nerves from the brain to the salivary glands, ending up in our spit. They believe the vesicles’ contents change over time and could serve as an early warning system, and ultimately a diagnostic.

To test their hypothesis, Kreiling and her team are following 150 cognitively normal people, age 65 and up, who are spitting into a tube once a year, to look for signs of Alzheimer’s, Parkinson’s, and other diseases. They hope they’ll be able to renew their five-year National Institute on Aging grant for at least another five years. 

Whether it’s the new tests and treatments for Alzheimer’s, or their work on how environment and lifestyle shape long-term health, the aging research underway at Brown is poised to redefine what it means to grow old. 

As Sedivy puts it, “It’s not really how long you live, it’s how well you live.” 

This article is based on and excerpted from “The Future of Aging” from the fall 2024 issue of Medicine@Brown magazine.

For information about specific giving opportunities, from research development to faculty support, please contact:

Cailie Burns
Senior Associate Dean and Strategic Advisor for Advancement
Division of Biology and Medicine
+1 (401) 863-1635
cailie_burns@brown.edu