metabolism

Beat the Heat With Some NIH History

Measuring and Manipulating Temperature Is Key to IRP Research

Many parts of the country were hit by record-breaking heat this summer. Controlling temperature is not only important for staying healthy, but it's also crucial for many types of research. Grab your water bottle and sit down in a shady spot to take a look at some photos from the Office of NIH History & Stetten Museum on the theme of hot and cold.

nurse holding thermometer

Reducing Stress Boosts Efficiency of Bacterial Factories

Unconventional Genetic Strategy Could Enhance Production of Medical Treatments

E. coli bacteria

We all have bad days on the job — your colleague keeps bugging you, your boss yelled at you for an innocent mistake, and you skipped lunch because you have 10 different deadlines coming up. Understandably, many people find it much harder to get their work done under such stressful circumstances. Microbes that produce chemicals for medicine and scientific research experience similar struggles, but a recent IRP study has found that short-circuiting their stress response makes them far more efficient at that task.

Scientists Douse Fat Burning to Combat Cancer

Inhibiting Energy Production Pathway Delays Tumor Formation in Mice

fire truck driving by a birthday party

Despite the common misconception that sugary treats send kids bouncing off the walls, fat actually provides more than twice as much energy as sugar and other carbohydrates. This energy can be a double-edged sword, fueling not just healthy cells but also cancerous ones. A new IRP study in mice suggests that reducing the body’s ability to burn fat molecules for energy could slow the formation of tumors, potentially extending the lives of individuals with strong genetic predispositions to cancer.

Innovation Awards Spark New Intramural Collaborations

Program Boosts Initiatives Supporting Researchers Across NIH

scientists talking in a lab

From Superbowl-winning football teams to comic book cohorts like The Avengers, combining the efforts of multiple talented individuals is a proven strategy for achieving remarkable results. It may come as no surprise, then, that the NIH’s Intramural Research Program (IRP) strongly encourages collaborations that breach the boundaries of its 24 Institutes and Centers. One example of these efforts is the Director’s Challenge Innovation Awards Program, which since 2009 has funded high-impact scientific projects that bring together researchers from across the IRP.

Dietary Supplement Powers Alzheimer’s-Afflicted Neurons

Mouse Study Supports Potential of Ketone-Elevating Treatment

fuel gauge showing empty

Whether from candy, soda, or fruit, sugar is the preferred source of sustenance for many people, and also for their brains. However, in patients with Alzheimer's disease, brain cells are less capable of turning sugar into energy. New IRP research provides evidence that this problem and the cognitive symptoms it causes could be partially solved by providing the brain with an alternative fuel.

IRP Clinical Trials Provide Irreplaceable Hope

Volunteering for Studies Allows Me to Help Myself and Others

NIH research participant Noah Victoria in a patient room at the NIH Clinical Center

Watching my dad carry the luggage to the car has become an all-too-familiar sight. It’s time for my mom and me to head to the NIH again, another trip in a lifelong journey for answers. I give my dad a long hug goodbye, and then I watch him stand alone in the driveway as we back away. The gravel arduously aches and crunches under our tires, a sound as uncomfortable as my symptoms even on my good days — few as there are.

Diabetes Drug Helps Patients by Modifying the Microbiome

bacteria in the digestive system

The more scientists have learned about the community of benign bacteria inside our bodies, known as the microbiome, the more effort they have put into recruiting it in the fight against disease. What’s more, scientists occasionally discover that treatments long thought to work completely independently of our native microbes also relieve symptoms by interacting with them. New IRP research into the most commonly used medication for type 2 diabetes has led to just such a revelation by demonstrating that its benefits stem in part from its ability to kill off a particular species of bacteria in the human digestive tract.

Intermittent Fasting Boosts Endurance in Mouse Marathoners

runner tying his shoe

Food companies have long marketed carbohydrate-rich drinks and energy bars to athletes with the message that the energy those snacks provide is key to lifting heavier and running farther. A new mouse study by IRP researchers, however, suggests that skipping a meal (or several) might be far more effective for increasing athletic prowess1.

Unlike modern Americans used to three square meals a day, our ancient ancestors couldn’t exactly throw a TV dinner in the microwave whenever they felt a bit peckish. As a result, they probably found themselves hunting wooly mammoths and fending off saber-toothed tigers on an empty stomach.

“From an evolutionary perspective, animals in the wild – particularly predators – need to be able to function at a high level when they’re in a food-deprived state,” says IRP Senior Investigator Mark P. Mattson, Ph.D., the study’s senior author. “Individuals who were able to perform at a high level in a fasted state had a survival advantage.”

Six Paths Forward in Biomedical Research

NIH Clinical Center

Last month I moderated our annual retreat with the NIH Scientific Directors, those individuals tasked with leading their Institute or Center (IC)-based intramural research program. We were joined by many of the IC Clinical Directors. And this year we decided to do something a little different: listen to a series of talks about exciting, new IRP research.

Enter the Metabolic Chamber, Learn Your Energy

Metabolic chamber, NIH NIDDK

Many scientists at the NIH used the metabolic chamber—a room constructed as a scientific instrument in which volunteers could live—to study how our bodies use air, food, and water under different conditions. Would you have volunteered for a study? Today's NIH Intramural investigators have even more advanced technologies to learn about energy expenditure's affects on obesity.