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I am Intramural Blog

heart disease

Open SESAME: A New Way to Clear the Heart’s Passageways

Minimally Invasive Procedure Provides Help for Ailing Hearts

Thursday, September 26, 2024

open door in heart

In the story of Ali Baba and the Forty Thieves, two magic words were necessary to open the cave where treasure was hidden. At NIH, researchers are applying those same special words, ‘open sesame,’ to unlock a chamber that is similarly difficult to access. In this case, however, it’s the left ventricle of the human heart.

“Enter one of the greatest acronyms in medicine: Open SESAME,” says IRP senior investigator Robert Lederman, M.D., who leads the IRP’s Laboratory of Cardiovascular Intervention. “That’s what we’re doing: opening up space in the heart.”

The Heartache of Discrimination

Allana T. Forde Unpacks Racial Disparities in Heart Health

Wednesday, February 21, 2024

black man having chest pains

Discrimination comes in many forms, and people experience it and cope with it in different ways. The accumulation of stress arising from discrimination can lead to wear and tear on the body in a process called ‘weathering’, which ultimately harms cardiovascular health. This is one of the key reasons Black Americans have a higher rate of cardiovascular disease than all other racial and ethnic groups in the U.S. and are much more likely to die from cardiovascular conditions than other racial and ethnic groups.

NIH Stadtman Investigator Allana T. Forde, Ph.D., M.P.H., hopes to reduce these startling health disparities by examining how psychosocial stressors, including discrimination, affect the cardiovascular health of subgroups of the Black population, including Afro-Caribbean, Afro-Latino, and African American individuals. She also endeavors to identify the protective and adaptive factors that impact the relationship between discrimination and cardiovascular health. In honor of American Heart Month, I spoke with Dr. Forde about her research on discrimination and cardiovascular health in Black Americans, as well as how her research might improve cardiovascular health and inform cardiovascular disease prevention strategies.

Immune Cells’ Rallying Cry Negates Cardiovascular Surgery’s Benefits

Existing Medications Could Extend Procedure’s Protective Effects

Tuesday, September 26, 2023

surgeons performing surgery

While modern surgery is undoubtedly a life-saving modern marvel, mucking around inside the human body rarely comes without consequences. Certain life-extending procedures meant to combat heart disease, for instance, commonly cause cardiovascular complications of their own. Fortunately, a team led by IRP researchers has identified a promising approach for staving off those surgical side effects to keep patients’ hearts robust for longer.

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.

Designer Drug Uses Double Whammy to Fight Heart Disease

Custom-Built Molecule May Improve On Its Natural Counterpart

Monday, February 22, 2021

plaque buildup in an artery

Ten years ago, a young woman from Chicago came to the National Institutes of Health with a rare genetic condition. A mutation in her DNA was making her metabolic system malfunction, causing levels of fat molecules called triglycerides in her blood to skyrocket far out of the normal range. This triggered inflammation in her pancreas, a painful and potentially life-threatening condition known as pancreatitis. She couldn’t understand why there wasn’t any kind of treatment to help her.

IRP senior investigator Alan T. Remaley, M.D., Ph.D., took on the challenge with the help of Anna Wolska, Ph.D., a research fellow in his lab. Dr. Remaley leads the Lipoprotein Metabolism Section in the National Heart, Lung, and Blood Institute (NHLBI), where he and Dr. Wolska study lipoproteins, small particles that transport fats such as cholesterol and triglycerides through the bloodstream to be broken down and used by cells for energy. Their efforts to help that young woman ultimately led to the discovery — published last January — of a new strategy for reducing triglycerides in order to treat serious ailments like pancreatitis and heart disease.

Scientists Pinpoint Traitorous Immune Cells in Lupus

Narrower Research Focus Could Aid Treatment for Autoimmune Diseases

Tuesday, March 10, 2020

immune cells called neutrophils (purple) attacking bacteria

Police pursuing a dangerous criminal rely on witness descriptions of the suspect’s specific traits — height, weight, hair color, tattoos — to pick out the perpetrator from a vast population of mostly innocent individuals. Scientists can likewise distinguish between highly similar cell types using cutting-edge laboratory procedures. Using such techniques, IRP researchers have identified a particular variety of cell in a specific stage of its life cycle as a primary culprit behind the autoimmune disease known as lupus.

Tracing the Path From Inflamed Skin to Heart Disease

Five Questions with Dr. Nehal Mehta

Thursday, August 29, 2019

psoriasis skin rash on hand

Most Americans know someone who has been affected by heart disease. Despite its status as the leading cause of death in the U.S. today, rates of heart disease have actually been steadily falling since they hit their peak in 1968. In fact, between 1970 and 2005, the life expectancy of the average American increased over 70 percent due in part to reductions in heart disease-related deaths.

Research conducted by IRP scientists has played a key role in curbing the heart disease epidemic by helping identify now well-known risk factors for heart disease, such as high blood pressure, obesity, and physical inactivity. However, not all risk factors are so commonly known. A 2017 study by IRP Lasker Clinical Research Scholar Nehal Mehta, M.D., M.S.C.E., revealed that untreated psoriasis — a chronic, relapsing, inflammatory skin disease — is linked to an elevated risk for premature coronary artery disease. Dr. Mehta’s research demonstrated a strong link between psoriasis-induced skin inflammation and and inflammation of the blood vessels, a precursor to heart disease. Through this study, the largest ongoing study of individuals with psoriasis to-date, Dr. Mehta’s team has concluded that controlling psoriasis-associated skin disease could be an important means of reducing cardiac risk in this population.

Cutting Calories Combats Aging Arteries

Tuesday, January 22, 2019

red blood cells traveling through a blood vessel

While many people think staving off aging means drinking seaweed smoothies and swallowing fish oil supplements, the key to extending life increasingly appears to be not putting things in our mouths. In yet another example of the anti-aging powers of eating less — what scientists call caloric restriction — IRP researchers have identified the specific aging-induced cellular and molecular changes in arteries that are curbed by substantially reducing calorie intake.

Three Billion Base Pairs vs. One Powerful Computer

Tuesday, November 27, 2018

a stand of DNA

The human genome comprises roughly three billion base pairs and around 20,000 protein-coding genes, according to recent estimates. That’s a lot of information crammed into the tiny nucleus of a cell, and it doesn’t even include the many genes that do not produce a protein or the fact that most genes come in multiple flavors that vary in different individuals. Add to that the phenomenon of an identical gene being either more or less active in two different people and you can quickly end up with genomic datasets that would overload nearly any computer. Fortunately for IRP senior investigator Daniel Levy, M.D., the NIH IRP has one of the few computer systems in the world that can handle this mountain of information.

Barbra Streisand Talks Up Women’s Heart Health

Tuesday, May 29, 2018

Barbra Streisand knows how to command an audience, whether she’s behind a microphone, a camera, or a podium. After a storied career beguiling theater-goers, Streisand’s new goal is not just to warm hearts but to save them from disease as well.

Barbra Streisand with NIH Director Francis Collins
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