IRP Discoveries

Alcohol Accelerates Cardiovascular Aging

IRP Research Suggests Older Adults May Benefit From Severely Limiting Alcohol Consumption

illustration of heart and lungs overlaid over an older woman

It seems like every news report touting the health benefits of a daily glass of wine is soon followed by another that claims consuming any amount of alcohol harms health. While the jury is still out on this issue for younger individuals, a recent IRP study suggests that alcohol consumption may accelerate the typical age-related erosion of the cardiovascular system.

Many scientific studies have established the myriad ways that aging and alcohol independently diminish the capacity of the heart and blood vessels to effectively move blood — and the vital oxygen and nutrients it carries — around the body. However, the effects of those two forces in combination remains an outstanding question with potentially significant implications for health and public policy.

A Crystal Ball for Prostate Cancer Treatment

IRP’s Dr. Adam Sowalsky Looks to Tumors’ Origins to Predict Outcomes

crystal ball

"Skate to where the puck is going, not where it has been." — hockey great Wayne Gretzky

Imagine two men, both diagnosed with prostate cancer. For one, the disease will remain a quiet shadow, never seriously threatening his life. For the other, it will become an aggressive adversary, resisting treatments and altering his future. This June, as Men's Health Month brings such realities into focus, a critical question echoes in clinics and labs: how can we identify early on which cancer will turn dangerous, and how can we use that knowledge to change a patient's outcome for the better? 

IRP senior investigator Adam G. Sowalsky, Ph.D., believes the answer lies not just in how cancer adapts during treatment, but in the evolutionary traits it already possesses when it first emerges. 

Calming Kids’ Runaway Emotions

Brain Research Helps Understand and Treat Childhood Anxiety

young girl with glowing brain

It’s perfectly normal for young children to throw tantrums or be nervous on their first day of school, and for adolescents to be anxious about what their peers think of them. However, for some children and teens, negative emotions can escalate to unhealthy levels, resulting in significant distress and impairing their quality of life. 

IRP senior investigator Daniel Pine, M.D., is on a mission to understand how that happens and figure out ways to help those kids. In honor of Mental Health Month, we talked with Dr. Pine about how his research is revolutionizing the field of pediatric psychiatry and paving the way for new, non-pharmaceutical treatments.

Dieting May Disrupt Women’s Sleep

IRP Study Reveals Influence of Calorie Intake and Reproductive Cycle on Sleep

woman yawning at work

Doctors have long emphasized the importance of maintaining a healthy body weight and getting enough sleep, but in our time-limited lives, we often have to choose between spending time exercising, preparing healthy meals, and getting sufficient shuteye. And the number of hours in the day may not be the only thing that pits weight loss against sleep. A recent IRP study suggests that young women who are not obese get poorer sleep when they change their diets in order to lose weight.

Startling Snapshots of Science

Vibrant Images Push Forward Environmental Health Research

cell junctions in tracheal epithelial cells from a TLR5 knockout mouse

Scientists and artists obviously don’t spend their days doing the same thing, but that doesn’t mean the former can’t sometimes inadvertently be the latter. Take for example the 14 IRP research fellows who submitted images to the most recent edition of the Fellows Scientific Image Competition at NIH’s National Institute of Environmental Health Sciences (NIEHS). The competition, held every few years, shows that biomedical science can not only save lives, but also look good doing it.

“We are excited to showcase the work of our trainees using visual media, which reminds us there is art in science and showcases the important research we’re all engaged in at NIEHS,” says NIEHS Scientific Director Darryl Zeldin, M.D., who initiated the competition.

Robot-Assisted Experiments Point to Treatments for Rare Cancer

Study Identifies Drugs That Exploit the Disease’s Weak Spots

drug-screening robots performing automated experiments

The best way to destroy a cancer cell is to target its weak points, but that’s obviously easier said than done, especially when you want to kill those diseased cells while sparing healthy ones. That’s where robots come in, allowing scientists to quickly evaluate the effects of thousands of drugs on cancer to see what works and what doesn’t. IRP researchers recently used that approach to identify potential treatments for a rare skin cancer, including a strategy that appears to be particularly good at hitting the disease where it’s most vulnerable.

Tracking the Neuronal Response to Head Injury

New IRP Study Identifies Vulnerable and Resilient Brain Cells

man being treated for a head injury

Even with our thick skulls to protect our fragile brains, a hard enough blow to the head will still send our neurons into a tizzy. However, not all neurons are affected in the same way by a ‘traumatic brain injury,’ or TBI for short. By developing a way to see which neurons turn on a distress signal after a mild TBI, IRP researchers recently identified differences between neurons that die afterwards and those that are shaken up by the injury but manage to recover over time.

Experimental Psoriasis Drug Comes With An ‘On-Off’ Switch

IRP Research Could Lead to Light-Activated Treatments for Numerous Diseases

light bulb

Many helpful contraptions we use every day would be problematic if we couldn’t turn them off when we didn't need them. After all, you wouldn’t want to leave your oven on when you’re out of town, and most people wouldn’t sleep well with their bedside lamp on all night. Many medical treatments would benefit from the same flexibility, but creating such treatments is no easy task. IRP researchers recently took a significant step forward in this area by creating an experimental treatment for an irritating skin condition that can be activated and inactivated using different colors of light.

Targeting Tuberculosis

IRP’s Clifton Barry Seeks Novel Therapies for an Ancient Foe

Mycobacterium tuberculosis bacteria

March 24 is World Tuberculosis Day, a day to remember that a preventable and curable disease still kills more than a million people each year. Despite every effort to eradicate it, the disease-causing bug, Mycobacterium tuberculosis, keeps coming back stronger and more ready for a fight. As varieties of the bacteria grow more and more resistant to treatment, an evolutionary war is raging between the bacterium and researchers like IRP senior investigator Clifton Barry, Ph.D., who has been seeking solutions for the past 33 years.

Working Out the Chemistry of Exercise Endurance

IRP’s Paul Hwang Discovers How Muscle Cells Gear Up for Training

joggers

As the weather warms up in March, which is National Athletic Training Month, many of us come out of hibernation and finally fulfill that new year’s resolution to start exercising. Deep down in our cells, our mitochondria, the tiny power stations that turn oxygen into energy, start getting a workout, too.

IRP senior investigator Paul Hwang, M.D., Ph.D., studies how mitochondria and cellular energy production affect human health and disease, with a particular focus on cardiovascular health and cancer. However, March’s many new fitness enthusiasts might be most interested in a recent finding from his laboratory that seems to explain how muscles build endurance as we train them through exercise. His team’s insights also explain why muscles revert back to couch potato mode so quickly when we stop regular exercise.