IRP Discoveries

Camel-Derived Therapy Infiltrates Cells to Treat Multiple Sclerosis

IRP Mouse Study Shows Promise of Treatment Strategy

camel in the desert

Earth’s jungles, deserts, and oceans are chock-full of wonderous creatures that have inspired a wide array of cutting-edge technologies, from strong yet flexible clothes made of synthetic spider silk to the plant-derived aspirin and morphine that have long been used as painkillers. Over the past few years, scientists at NIH and elsewhere have added sharks and camels to that list due to unique molecules their immune systems make. IRP researchers recently showed that one of those molecules could potentially be used to treat the devastating neurological disease known as multiple sclerosis.

Open SESAME: A New Way to Clear the Heart’s Passageways

Minimally Invasive Procedure Provides Help for Ailing Hearts

open door in heart

In the story of Ali Baba and the Forty Thieves, two magic words were necessary to open the cave where treasure was hidden. At NIH, researchers are applying those same special words, ‘open sesame,’ to unlock a chamber that is similarly difficult to access. In this case, however, it’s the left ventricle of the human heart.

“Enter one of the greatest acronyms in medicine: Open SESAME,” says IRP senior investigator Robert Lederman, M.D., who leads the IRP’s Laboratory of Cardiovascular Intervention. “That’s what we’re doing: opening up space in the heart.”

Creating Building Blocks for Muscle Regeneration

IRP Study Points to Strategy to Speed Healing and Reduce Age-Related Atrophy

human musculature

Whether due to exercise or injury, our muscles are constantly breaking down and regenerating. Just like construction workers need a hearty lunch to fuel their hammer swings and nails to hammer, our cells need both energy and specific materials to rebuild our bodies. New IRP research has produced important insights into how cells create the energy and building blocks needed to repair our muscles, pointing to potential avenues for helping people recover from muscular injuries or retain more muscle as they age.

Comparing Two Ways to Blast Tumors

IRP Study Is Examining the Long-Term Effects of Treatments for Children With Cancer

cancer cell being destroyed by a high-energy beam

Not long after German physicist Wilhelm Röntgen identified X-rays in 1895, doctors began using them to treat cancer. They soon realized, however, that this new ‘radium’ therapy — the forebearer of modern-day radiation therapy — could also cause cancer. Today, we know that radiation therapy poses much greater risks to children than adults because their cells are dividing more rapidly than those of adults, making the cells more sensitive to radiation. Children also have more years of life ahead of them during which a cancer instigated by their treatment might develop.

Dysfunction in Janitorial Gene Contributes to ALS

IRP Study Points to Treatment Target for Fatal Neurological Disorder

person taking out the trash

Just like we throw out our busted toasters and other appliances, our cells must continuously dispose of malfunctioning equipment to keep themselves working optimally. In certain neurological diseases, though, neurons die because they can’t get rid of misbehaving molecules. New IRP research provides crucial insights into a key player in this process, suggesting that restoring the function of a particular gene or boosting the levels of the enzyme it produces could help patients with the devastating disease known as amyotrophic lateral sclerosis (ALS).

Illuminating the Brain’s Hidden Secrets

New Molecules for PET Scans Shed Light on Psychiatric Disorders

PET scans of the brain

For most kids, witnessing a classmate get teased for strange behavior or learning struggles is an unfortunate but common part of life. Growing up, IRP senior investigator Robert Innis, M.D., Ph.D., viewed the situation differently when he observed it during a high school geometry class.

“Some of my classmates were criticizing one student like he was a bad person,” he remembers. “I kept thinking, ‘You can’t blame him. It’s the chemistry in his brain that causes him to act that way. Don’t think you’re so high and mighty. It’s just your chemistry!’”

That interest in brain chemistry and how it relates to normal and abnormal behavior laid the foundation for Dr. Innis’s research in neuropsychiatry and brain imaging. As we observe World Brain Day on July 22, we took the opportunity to talk with Dr. Innis about his research, which uses a technique called positron emission tomography (PET) to measure the levels of various proteins in people’s brains and learn about their function in both healthy states and neuropsychiatric diseases.

Metabolic Inflexibility Drives Increased Appetite

IRP Research Could Aid Personalized Weight Loss Recommendations

person eating an over-sized burger

We all know the stereotype of the picky child who shuns vegetables unless they’re smothered in ranch dressing or cheese. Surprisingly, the human body can also be similarly choosy about how it fuels itself. New IRP research shows that people whose bodies prefer to raid their sugar depots rather than use stored fat during a period without food consume more calories after their fast, suggesting a possible explanation for why some people are more prone to gaining weight over time or have less success with certain weight loss interventions.

Jekyll-and-Hyde Gene Has Dual Influences on Dementia Risk

IRP’s Priyanka Narayan Explores How the ApoE Gene Affects Fat Management in the Brain

two DNA molecules overlaid on top of a brain

Just as Dr. Jekyll and Mr. Hyde exhibited the extremes of good and bad qualities in a single man, IRP Stadtman Investigator Priyanka Narayan, Ph.D., is showing how a single gene can both protect against and raise the risk for Alzheimer’s disease and other dementias. As we observe Alzheimer’s and Brain Awareness month this June, we talked with Dr. Narayan about her work.

“Our research focuses on understanding fundamental cell biology in brain cells and how genetic factors affecting that biology can predispose individuals to Alzheimer's disease,” Dr. Narayan says. “More recently, we’ve become interested in protective factors that make people more resistant to getting Alzheimer’s disease and other forms of neurodegenerative diseases as well.”

A Promising Path to Saving Stiffening Livers

IRP Study Could Lead to New Treatments for an Increasingly Prevalent Liver Ailment

fatty liver

Experienced bakers know certain ingredients are impossible to work with when they’re not supple enough — just try making cookies with ice-cold butter or rock-hard brown sugar. The same could be said of the liver, which struggles to do its job when high levels of fat accumulate in it and trigger a process that binds the liver up in an inflexible mesh. Recent IRP research has identified a key set of biochemical events responsible for that ailment, pointing the way towards a possible method of treating an increasingly prevalent cause of liver disease.

Picturing Stroke Recovery

IRP’s Larry Latour Peeks Into the Damaged Brain

x-ray view of the brain as a person experiences a stroke

The word ‘stroke,’ attributed to the idea of ‘a stroke of God’s hand,’ was first used in 1599 to describe the sudden seizure, paralysis, and brain damage that was previously called ‘apoplexy.’ It was a fitting analogy. Strokes, which affect nearly 800,000 Americans every year, hit suddenly and terrifyingly, with devastating consequences. Speed is critical to good treatment outcomes, but until recently very little could be done. 

May is Stroke Awareness Month, a time to draw attention to the risks and symptoms of stroke and the new treatments that are helping people recover with fewer lasting effects. We recently spoke with IRP senior scientist Lawrence L. Latour, Ph.D., an expert on brain imaging who leads the Acute Cerebrovascular Diagnostics Unit, a unique partnership between the NIH Intramural Research Program and two hospitals in the metro, D.C., area: Suburban Hospital and Medstar Washington Hospital Center. The collaboration, launched in 2000, aimed to incorporate magnetic resonance imaging (MRI) in examinations of patients experiencing symptoms of stroke. This allowed the clinicians to diagnose patients more easily and then, through imaging at later time points, look at how patients responded to their treatments in order to learn ways to improve therapy.