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I am Intramural Blog

diabetes

Moms’ Microbes May Influence Babies’ Future Health

IRP Mouse Study Suggests Intervention Might Reduce Health Problems Associated with C-Section Births

Tuesday, October 15, 2024

mother holding her baby

Every kid’s first gift from their mom is half of her DNA, but nearly a third of children born nowadays miss out on a bonus present. That’s because babies born via vaginal delivery are exposed to the microorganisms that live in the vagina, but infants born via Cesarian section are not. A new IRP mouse study suggests that an intervention designed to make up for this missed opportunity could reduce the risk of certain health problems that are more common in babies born via C-section.

Drilling Down Into DNA and Disease

Catching Up With Former NIH Director Francis Collins

Thursday, April 25, 2024

DNA

It has been 20 years since researchers around the world successfully mapped most of the roughly 20,000 genes that make up the human genome. Former NIH Director Francis Collins, M.D., Ph.D. led the Human Genome Project through most of its 13-year progression and continues to push the limits of genetics today. As we celebrate National DNA Day on April 25, the 71st anniversary of the publication of DNA’s double-helix structure, we took some time to catch up with Dr. Collins and learn what he’s been up to since he stepped down as NIH Director in December 2021.

The dozen or so researchers in Dr. Collins’s lab focus on the role of genes in a variety of diseases, ranging from conditions caused by rare mutations in single genes to common ailments influenced by the interplay of hundreds of genes, lifestyle behaviors, and environmental factors. His two main research interests are type 2 diabetes and Hutchinson-Gilford progeria syndrome, a rare disorder that causes exceptionally rapid aging in children.

Applying Rare Disease Discoveries to Diabetes

Patients With Rare Metabolic Conditions Yield Insights Into Common Ailments

Thursday, February 29, 2024

overweight patient talking with doctor

Young doctors are taught the adage, “When you hear hoofbeats, think horses, not zebras.” Just as you would not expect to find a zebra in your barn, when making a diagnosis, you generally don’t expect to find an unusual disease. However, just as there are still zebras in the world, there are also rare diseases. On Rare Disease Day, celebrated on the last day of February each year, we call attention to the 300 million people affected by them.

Defined as conditions that affect fewer than 1 in 2,000 people, rare diseases pose both challenges and opportunities to medical research. Because they are so uncommon, diagnosis can take years, and treatments may be difficult to obtain or may not yet exist. However, for IRP Lasker Clinical Research Scholar Rebecca J. Brown, M.D., M.H.Sc., the study of several rare metabolic diseases may shed light on the causes of one of the most common diseases in the U.S.

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.

Boosting Brain Activity to Suppress Snacking

Non-Invasive Stimulation Method May Improve Self-Regulation Around Food

Tuesday, November 22, 2022

a box of donuts

Marketers make a living from the fact that merely seeing an advertisement for junk food can spur a sudden craving for potato chips or sugary cereal. Some people have an easier time than others resisting such urges, and over-consuming that sort of food can have problematic consequences for health. Findings from a recent IRP study suggest that stimulating a particular part of the brain might help people who struggle with obesity by enhancing their ability to control their desire to snack.

Overzealous Immune Cells Hamper Healing

Study Points to Treatment Targets for Impaired Healing Due to Diabetes

Tuesday, September 13, 2022

patient having his foot examined

Whether we’ve nicked a finger while chopping vegetables or wiped out riding a skateboard, we tend to take for granted that our injuries will eventually mend themselves. However, for a type of wound that often plagues patients with diabetes, healing is no sure thing. IRP researchers recently identified why certain immune cells shift from helpful healers into saboteurs in those injuries.

Therapeutic Strategy Protects Heart From Diabetic Damage

Mouse Study Points to Approach for Preventing Diabetes-Related Heart Failure

Tuesday, June 7, 2022

diabetic man testing his blood sugar

Our cells love to lap up sugar from our blood, but as is often the case, too much of a good thing can cause problems. In people with diabetes, chronically high blood sugar can harm organs, including the heart. In an effort to combat this life-threatening problem, IRP researchers demonstrated in mice that activating a specific biological pathway in heart cells can reduce diabetes’ damaging effects on the vital organ.

IRP’s Shannon Zenk Elected to the National Academy of Medicine

Nursing Research Leader Sheds Light on How Neighborhoods Influence Health

Monday, April 4, 2022

Dr. Shannon Zenk

When you think about public health, city planning might not be the first thing that comes to mind. Yet where we live — the quality of the buildings, the availability of places to walk and play safely, and the types of schools and stores in the neighborhood — can profoundly affect our health. This relationship has been emphasized by the COVID-19 pandemic, as close, stuffy living conditions, the need to take public transportation to essential jobs, and inequities in access to testing and vaccination sites all contributed to the larger reduction in life expectancy for Black and Latino Americans compared to Caucasians over the last two years.

Shannon N. Zenk, Ph.D., M.P.H., R.N., F.A.A.N., Director of the National Institute of Nursing Research (NINR), was elected to the National Academy of Medicine in 2021 for her research into how neighborhood characteristics affect the health of residents and contribute to the health disparities seen between communities with different racial and ethnic makeups and different levels of income.

Drug Duo Stokes Body’s Fat-Burning Furnace

Mouse Study Suggests Treatment Strategy Could Benefit Patients with Obesity

Tuesday, March 8, 2022

fire

It’s bad enough that the excess abdominal fat carried by most individuals with obesity causes widespread inflammation throughout their bodies. To add insult to injury, that inflammation actually makes it harder to use up overloaded fat stores. However, a new IRP mouse study supports a two-pronged pharmaceutical approach that could break this vicious cycle and help improve the health of people with obesity.

Duo Delves Into Genetics of Diabetes

Drs. Leslie Baier and Robert Hanson Identify Genetic Risk Factors in American Indians

Monday, November 29, 2021

A team of researchers at NIH’s campus in Phoenix, Arizona, is working with the local American Indian community to learn about genetic risk factors for type 2 diabetes.

November is both Diabetes Awareness Month and Native American Heritage Month. Unfortunately, the month of November is not the only link between Indigenous populations and diabetes. Members of minority groups have a much higher risk of developing type 2 diabetes and its many complications compared to the general population, and this is especially true of some American Indian tribes, whose members are twice as likely to have type 2 diabetes as white Americans.

At the Phoenix Epidemiology and Clinical Research Branch in Arizona, part of the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), IRP senior investigators Leslie J. Baier, Ph.D., and Robert Hanson, M.D., M.P.H., are working to understand why American Indians living in the southwestern U.S. are disproportionately affected by type 2 diabetes and obesity. Using family histories, medical records, and other data collected during a decades-long study of these communities, combined with extensive analysis of some of their participants’ DNA, their team has identified several genes that contribute to risk for those two conditions, along with some surprising findings about their prevalence.

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