NIH Intramural Research Program

Four NIH Researchers Elected to National Academy of Sciences
Four scientists from NIH's Intramural Research Program were elected to the National Academy of Sciences (NAS) in April 2025 in recognition of their momentous scientific achievements.
Meet the honorees
SciBites video shorts
IRP postbaccalaureate fellow Yonathan Assefa is examining how a neurological disease affects muscles and nerves.
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Research in Action: Battling Blood-Sucking Bugs
Jesus Valenzuela dissects how our bodies react to insect bites.
Enter the Lab
Speaking of Science Podcast
Hear conversations with world-leading researchers working at the NIH IRP on challenges across the spectrum of biomedicine.

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“I Am Intramural” Blog
Ever wondered what goes on at the National Institutes of Health (NIH), the world’s largest biomedical research institution? Look no further!

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Welcome to the IRP

The Intramural Research Program (IRP) is the internal research program of the National Institutes of Health (NIH), known for its synergistic approach to biomedical science. We invite you to explore the possibilities.

Research in Action

Learn about our researchers, their goals, achievements, inspirational moments, and most of all, why they are passionate about the research they do here.

Jesus Valenzuela dissects how our bodies react to insect bites.

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Lorenzo Leggio seizes new opportunities to develop treatments for substance use disorders.

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Swee Lay Thein is hunting for new ways to help patients with deformed red blood cells.

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Yi Gu is on a journey to find out how the brain learns the lay of the land.

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Shahinaz Gadalla aims to improve outcomes for stem cell transplants.

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