Category: Injury and Illness

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Fight Against COVID-19 Aided by Sepsis Researchers

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Oblong light-blue structures with red spots in the middle connected to the surface of a sphere. Spike proteins on the surface of a coronavirus. Credit: David Veesler, University of Washington.

Since the start of the COVID-19 pandemic, researchers from many areas of biomedical science have worked together to learn how this new disease affects the human body, how to prevent its spread, and how to treat it. Severe cases of COVID-19 and cases of sepsis share many symptoms. Sepsis is the body’s overactive and extreme response to an infection. It’s unpredictable and can progress rapidly. Without prompt treatment, it can lead to tissue damage, organ failure, and death.

Sepsis has similarities with some cases of COVID-19, most likely because the two conditions trigger the same reactions at the cellular level. Researchers have studied these reactions in sepsis for many years.

“When we look back on 2020 and the speed with which progress was made against COVID-19, two features will stand out,” says John Younger, M.D., a member of the NIGMS Advisory Council who recently co-chaired a working group on advancing sepsis research. “The first is how quickly the biotechnology community came together to develop vaccine candidates. The second, and arguably the most immediately impactful, is how caregivers and clinical researchers were able to rapidly refine the care of COVID-19 patients based on decades of experience with sepsis.”

This post highlights a few of the many sepsis researchers supported by NIGMS who are applying their expertise to COVID-19.

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Teaching Old Cells New Tricks: Insights Into Molecular-Level Aging

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When someone mentions aging, you may think of visible changes, like graying hair. Scientists can see signs of aging in cells, too. Understanding how basic cell processes are involved in aging is a first step to help people lead longer, healthier lives. NIGMS-funded researchers are discovering how aging cells change and applying this knowledge to health care.

Discovering the Wisdom of Worms

Three small worms glowing red and green. C. elegans with a ribosomal protein glowing red and muscle fibers glowing green. Credit: Hannah Somers, Mount Desert Island Biological Laboratory.

Aric Rogers, Ph.D., and Jarod Rollins, Ph.D., assistant professors of regenerative biology and medicine at Mount Desert Island (MDI) Biological Laboratory in Bar Harbor, Maine, are investigating aging by studying a tiny roundworm, Caenorhabditis elegans. Researchers often study C. elegans because, though it may seem drastically different from humans, it shares many genes and molecular pathways with us. Plus, its 2- to 3-week lifespan enables researchers to quickly see the effects of genetic or environmental factors on aging.

Drs. Rogers and Rollins investigate how C. elegans expresses genes differently under dietary restriction, enabling it to live longer. Understanding how genes are expressed when organisms live an extended life sheds light on the genetics underlying aging. This information could help researchers develop drugs or behavior modification programs that prolong life and delay the onset of age-related diseases such as heart disease, diabetes, cancer, and dementia.

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Pathways: The Superbug Issue

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Cover of Pathways student magazine showing blueish-green virus particles and text that reads, Stop the Spread of Superbugs (Yes, you can help!). Cover of Pathways student magazine.

NIGMS and Scholastic bring you our latest issue of Pathways, which focuses on superbugs—infectious microbes that can’t be fought off with medicines. Viruses that can’t be prevented with vaccines, such as the common cold, and antibiotic-resistant bacteria both fall into this category.

Pathways, designed for students in grades 6 through 12, is a collection of free resources that teaches students about basic science and its importance to health, as well as exciting research careers.

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Shedding Light on Sepsis

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Sepsis is the body’s overactive and extreme response to an infection. It’s unpredictable, can progress rapidly, and affects more than 1.7 million people in the United States each year. Without prompt treatment, it can lead to tissue damage, organ failure, and death. NIGMS supports state-of-the-art sepsis research, including the development of rapid diagnostics and new therapeutics. September is Sepsis Awareness Month, and we’re highlighting a few resources that offer more information about this condition.

Our infographic provides details at a glance on basic statistics and the future of sepsis research. It’s also available in Spanish.

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NIGMS Centers Build Relationships with Blackfeet Students and Collaborate on Inflammation Research

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A sign that says “Welcome to the Blackfeet Nation” next to a sculpture of two American Indians on horseback under a blue sky. Credit: Murray Foubister. CC BY-SA 2.0 Link to external web site.

As part of its commitment to cultivate a diverse and inclusive scientific workforce, NIGMS continues to nurture relationships between teaching institutions and American Indian communities nationwide to ignite student interest in biomedical science and encourage research careers. This post highlights one such collaboration between NIGMS-supported centers at Montana State University (MSU) in Bozeman and the Blackfeet Nation, a tribe of nearly 18,000 members that’s one of the largest in the United States.

A headshot of Dr. Neha John-Henderson. Neha John-Henderson, Ph.D., Montana State University. Credit: Kelly Gotham.

Neha John-Henderson, Ph.D. Link to external web site, an MSU assistant professor of psychology, first met Blackfeet Community College (BCC) students through Agnieszka Rynda-Apple, Ph.D., an MSU assistant professor of microbiology and immunology who already had a working relationship with the Blackfeet community. For about a year, Drs. John-Henderson and Rynda-Apple visited BCC interns and faculty supervisor Betty Henderson-Matthews monthly to help them interpret data collected for a student-developed project. While completing this project on the link between stress and health on the Blackfeet reservation, the researchers developed relationships with the students and faculty. They listened closely to the students’ stories, experiences, and career aspirations.

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The Science of Infectious Disease Modeling

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What Is Computer Modeling and How Does It Work?

Recent news headlines are awash in references to “modeling the spread” and “flattening the curve.” You may have wondered what exactly this means and how it applies to the COVID-19 pandemic. Infectious disease modeling is part of the larger field of computer modeling. This type of research uses computers to simulate and study the behavior of complex systems using mathematics, physics, and computer science. Each model contains many variables that characterize the system being studied. Simulation is done by adjusting each of the variables, alone or in combination, to see how the changes affect the outcomes. Computer modeling is used in a wide array of applications, from weather forecasting, airplane flight simulation, and drug development to infectious disease spread and containment.

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Sepsis: Using Big Data to Cut a Killer Down to Size

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A geographical outline of the U.S. with the text More than 1.7 million people get sepsis each year in the United States. View the full infographic for more facts about sepsis.

Sepsis is a serious medical condition caused by an overwhelming response to infection that damages tissues and organs. It’s unpredictable, progresses quickly, can strike anyone, and is a leading cause of hospital-related deaths. In the U.S. alone, nearly 270,000 people die each year from sepsis. Those who survive sepsis often end up in the hospital again, and some have long-term health complications. Early treatment is key for many patients to survive sepsis, yet doctors can’t easily diagnose it because it’s so complex and each patient is different.

Despite decades of research, sepsis remains a poorly understood condition with limited diagnostic tools and treatment. To tackle these obstacles, scientists Vincent Liu, Christopher Seymour, and Hallie Prescott have started using a “big data” approach, which relies on complex computer programs to sift through huge amounts of information. In this case, the computers analyze data such as demographic information, vital signs, and routine blood tests in the electronic health records of sepsis patients. The goal is to find patterns in the data that might help doctors understand, predict, and treat sepsis more effectively.

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How Three Physician Scientists Are Taking Strides to Improve Our Health

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Brain injuries, cancer, infections, and wound healing are some of the complex and pressing health concerns we face today. Understanding the basic science behind these diseases and biological processes is the key to developing new treatments and improving patient outcomes. Physician scientists—medical doctors who also conduct laboratory research—are essential to turning knowledge gained in the lab into innovative treatments, surgical advances, and new diagnostic tools.

In this blog, we highlight the work and impact of three surgeon scientists funded by NIGMS at different stages in their careers: Dr. Nicole Gibran (current grantee), Dr. Rebecca Minter (former grantee), and Dr. Carrie Sims (former grantee). Their work, despite the historical underrepresentation of women in the physician scientist training community, has led to revolutionary surgical treatments, new therapeutics, better screening, and improved quality of life for patients.

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Sepsis: The Body’s Deadly Response to Infection

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Although not as well-known as other medical conditions, sepsis kills more people in the United States than AIDS, breast cancer, or prostate cancer combined. Sepsis is body-wide inflammation, usually triggered by an overwhelming immune response to infection. Though doctors and medical staff are well-aware of the condition—it is involved in 1 in 10 hospital deaths—the condition is notoriously hard to diagnose. In this video, sepsis expert Sarah Dunsmore, a program director with the National Institute of General Medical Sciences (NIGMS), describes what sepsis is and how to recognize it, what kinds of patients are most at risk, and what NIGMS is doing to reduce the impact of this deadly condition.