In the News

Research advances from the National Institutes of Health (NIH) Intramural Research Program (IRP) often make headlines. Read the news releases that describe our most recent findings:

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Inside the government study trying to understand the health effects of ultraprocessed foods

Associated Press
March 14, 2025

BETHESDA, Md. (AP) — Sam Srisatta, a 20-year-old Florida college student, spent a month living inside a government hospital here last fall, playing video games and allowing scientists to document every morsel of food that went into his mouth.

From big bowls of salad to platters of meatballs and spaghetti sauce, Srisatta noshed his way through a nutrition study aimed at understanding the health effects of ultraprocessed foods, the controversial fare that now accounts for more than 70% of the U.S. food supply. He allowed The Associated Press to tag along for a day.

“Today my lunch was chicken nuggets, some chips, some ketchup,” said Srisatta, one of three dozen participants paid $5,000 each to devote 28 days of their lives to science. “It was pretty fulfilling.”

Examining exactly what made those nuggets so satisfying is the goal of the widely anticipated research led by National Institutes of Health nutrition researcher Kevin Hall.

“What we hope to do is figure out what those mechanisms are so that we can better understand that process,” Hall said.

Strategy developed to improve delivery of medicines to the brain

NIH researchers use rodent study to uncover novel approach

New research offers a possible strategy for treating central nervous system diseases, such as brain and spinal cord injury, brain cancer, epilepsy, and neurological complications of HIV. The experimental treatment method allows small therapeutic agents to safely cross the blood-brain barrier in laboratory rats by turning off P-glycoprotein, one of the main gatekeepers preventing medicinal drugs from reaching their intended targets in the brain.

NIH statement on International FASD Awareness Day

International Fetal Alcohol Spectrum Disorders (FASD) Awareness Day, recognized every year on the ninth day of the ninth month, is an important reminder that prenatal alcohol exposure is the leading preventable cause of birth defects and developmental disorders in the United States.

NIH scientists map first steps in flu antibody development

National Institutes of Health scientists have identified how a kind of immature immune cell responds to a part of influenza virus and have traced the path those cells take to generate antibodies that can neutralize a wide range of influenza virus strains. Study researchers from the National Institute of Allergy and Infectious Diseases (NIAID), part of NIH, were led by Gary Nabel, M.D., Ph.D., director of NIAID’s Vaccine Research Center. Their findings appear online in advance of print in Nature.

NIH study finds calorie restriction does not affect survival

Scientists have found that calorie restriction — a diet comprised of approximately 30 percent fewer calories but with the same nutrients of a standard diet — does not extend years of life or reduce age-related deaths in a 23-year study of rhesus monkeys. However, calorie restriction did extend certain aspects of health. The research, conducted by scientists at the National Institute on Aging (NIA) at the National Institutes of Health, is reported in the August 29, 2012 online issue of Nature.

Compounds activate key cancer enzyme to interfere with tumor formation

Scientists have known for decades that cancer cells use more glucose than healthy cells, feeding the growth of some types of tumors. Now, a team that includes researchers from the National Institutes of Health's new National Center for Advancing Translational Sciences (NCATS) has identified compounds that delay the formation of tumors in mice, by targeting a key enzyme that governs how cancer cells use glucose and its metabolites.

NIH uses genome sequencing to help quell bacterial outbreak in Clinical Center

For six months last year, a deadly outbreak of antibiotic-resistant bacteria kept infection-control specialists at the National Institutes of Health’s Clinical Center in a state of high alert. A New York City patient carrying a multi-drug resistant strain of Klebsiella pneumoniae, a microbe frequently associated with hospital-borne infections, introduced the dangerous bacteria into the 243-bed research hospital while participating in a clinical study in the summer of 2011.

Brain signal ID’s responders to fast-acting antidepressant

Scientists have discovered a biological marker that may help to identify which depressed patients will respond to an experimental, rapid-acting antidepressant. The brain signal, detectable by noninvasive imaging, also holds clues to the agent’s underlying mechanism, which are vital for drug development, say National Institutes of Health researchers.

NIH researchers implicate unique cell type in multiple sclerosis

Researchers at the National Institutes of Health have found evidence that a unique type of immune cell contributes to multiple sclerosis (MS). Their discovery helps define the effects of one of the newest drugs under investigation for treating MS — daclizumab — and could lead to a new class of drugs for treating MS and other autoimmune disorders.

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This page was last updated on Friday, March 21, 2025