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I am Intramural Blog

IRP Discoveries

Mapping the Pathway to an Asthma Attack

IRP Research Breathes New Life into Therapies for Treatment-Resistant Asthma

Tuesday, May 2, 2023

black man using an inhaler

It may start with a wheeze, a cough, or a feeling of tightness in the chest, but the result is the same. Acute asthma attacks make sufferers feel like they’re breathing through a straw while underwater. And even between attacks, having asthma can sometimes feel like your lungs are bound in tight bandages that make it difficult to take a deep breath.

World Asthma Day, observed this year on May 2, raises awareness of asthma, a common inflammatory disease that causes difficulty breathing in more than 260 million people worldwide, including 25 million in the U.S., roughly 8 percent of the country’s population. While many people can control their symptoms by taking medications and limiting certain activities, the condition still causes significant illness and even death.

Starving Malaria in Red Blood Cells

Understanding How Parasite Feeds May Lead to New Treatments

Tuesday, April 25, 2023

red blood cells

World Malaria Day, commemorated annually on April 25, highlights the need to end an infectious disease that sickens nearly 250 million people around the world each year, killing more than 600,000 in regions where it is common. Children are particularly susceptible to its deadly effects.

Unfortunately, there is still no highly effective vaccine against malaria, so management is mostly limited to preventive measures like bed nets and medications that treat the infection, which must be taken over an extended period to effectively treat the disease and stop it from spreading. However, the speed with which the malaria parasite, Plasmodium falciparum, adapts to antimalarial drugs has created a critical need for novel treatments — a need that IRP researchers led by Joshua Zimmerberg, M.D., Ph.D., are taking a unique approach to filling.

IRP Study Gets Kids Moving to Improve Blood Sugar Control

Interrupting Sedentary Time Could Help Stave Off Health Problems

Tuesday, April 18, 2023

little girl playing on a tablet

Many people don’t get much exercise these days, and kids are no exception. Whether at school, doing homework, or entertaining themselves online, children and teens spend hours on end sitting around. That lack of physical activity raises their risk for metabolic conditions like obesity and type 2 diabetes, but according to a recent IRP study, breaking up those long, sedentary periods with just a few minutes of exercise could yield noticeable benefits for their health.

Hunger Hormone Feeds Alcohol Cravings

IRP Researchers Pursue New Approaches to Treating Alcohol Use Disorder

Wednesday, April 12, 2023

man eating pasta

While most adults in the U.S. consume alcohol in moderation, for nearly 30 million of them, going even one day without alcohol feels nearly impossible. For these Americans, alcohol use disorder (AUD) is a serious condition that harms their health, relationships, and career. Unfortunately, only a small percentage of people with AUD receive treatment, and even then, for many patients, the chances of a relapse are high.

As the search for a reliable and effective treatment continues, IRP senior investigator Lorenzo Leggio, M.D., Ph.D., is exploring the biological processes that underlie alcohol cravings to unlock new approaches to therapy. April is Alcohol Awareness Month, so we took the opportunity to speak with him about recent discoveries made by his IRP team and its collaborators.

Dying Tumor Cells Suppress Anti-Cancer Immune Response

IRP Study Points to Strategies to Stop Disease From Spreading

Tuesday, April 4, 2023

T cells (red) attacking cancer cell (white)

Ancient Greek myth describes how the hero Hercules battled the many-headed hydra, which regrew two heads every time Hercules cut one off. This frustrating fight against a seemingly invulnerable opponent would be an apt metaphor for treating cancer, in which tumor cells sometimes die in a particular way that actually helps their brethren multiply and spread to other parts of the body. In a study of that phenomenon using a mouse model of breast cancer, IRP researchers discovered that it occurs because that form of cell death suppresses the immune system’s response to the cancer, a finding that points to several potential ways to improve cancer therapy.

Preventing Cellular Rust Hinders Tuberculosis

Study Suggests New Treatment Approach for Deadly Lung Infection

Tuesday, March 21, 2023

tuberculosis bacteria

Oxygen is, quite literally, the air we breathe (or, more accurately, 21 percent of it). However, just as oxygen in the air can turn a handy garden tool into a useless hunk of rust, certain unstable, oxygen-containing molecules in our bodies can wreak havoc on our cells. According to new IRP research, revving up cellular systems that prevent this kind of damage could significantly improve outcomes for people with tuberculosis.

Examining the Roots of Opioid Use Disorder

IRP Researchers Are Peering Into the Brain to Learn Why Opioid Drugs Are So Hard to Quit

Monday, March 13, 2023

oxycodone pills and pill bottle

The ancient Egyptians, despite their significant anatomical knowledge, thought the heart was the seat of intelligence. Over the millennia, that view changed as philosophers and scientists alike came to appreciate the extraordinary role of the brain. It is partly thanks to them that we celebrate Brain Awareness Week every March. In honor of this observance, we took the opportunity to talk with IRP senior investigator Yihong Yang, Ph.D., and postdoctoral fellow Ida Fredriksson, Ph.D., Pharm.D., about their investigation into how cravings for opioids build during a period of prolonged abstinence, often leading to relapse.

Sugar Molecule Could Resolve Rare Diseases

IRP Research Hastens Development of First Treatment for Genetic Muscle Condition

Tuesday, February 28, 2023

cartoon highlighting one person in a crowd

An old medical adage warns doctors that when they hear hoofbeats, they should first think of horses, not zebras. After all, when someone comes into the hospital with a cough, the most likely explanation is something mundane like the flu. However, some patients truly are medical zebras, affected by a disease that afflicts very few others.

IRP senior investigator Marjan Huizing, Ph.D., has learned quite a bit about those zebras since arriving at the National Human Genome Research Institute (NHGRI) as a postdoctoral fellow in 1998. To help commemorate Rare Disease Day today, Dr. Huizing spoke with the “I Am Intramural” blog about her research on an array of ailments linked to a small sugar molecule called sialic acid, some of which are extremely rare.

Moms’ Caffeine Consumption May Affect Babies’ Brains

Findings Could Explain Why Caffeine Exposure In-Utero Increases Kids’ Risk for Obesity

Tuesday, February 21, 2023

steaming cup of coffee

Between books, the media, and well-meaning friends and relatives, new parents are inundated with advice about how to set their kids up for a happy and healthy future. However, what parents do before their children are even born can also have a huge impact on how they turn out. For instance, new IRP research suggests that a pregnant woman’s caffeine consumption can rewire her baby’s brain in ways that put the child at increased risk for obesity later in life.

Helping Aging Hearts Get Their Groove Back

IRP Researchers Discover ‘Coupled-Clock’ That Controls Heart Rhythms

Wednesday, February 15, 2023

heart rate monitor

Like so much about our lives, our hearts slow down as we age. While this slowing is natural, a heartbeat that is too sluggish can lead to heart failure, irregular heartbeats known as arrhythmias, and other problems. IRP senior investigator Edward G. Lakatta, M.D., has changed the paradigm in our understanding of how our hearts keep the beat across our life spans — and what happens when they don’t.

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