Category: Being a Scientist

Diversity Supplement Program Paves the Way for Talented Researchers

September 27, 2023

“I hope that one day I’m able to increase our understanding of evolution, and I also hope to increase access to research. I want others to know that this space is open to people who look like me, who come from disadvantaged backgrounds, and who are underrepresented in the sciences,” says Nkrumah Grant, Ph.D., a postdoctoral research associate (postdoc) in microbiology and molecular genetics at Michigan State University (MSU) in East Lansing.

Dr. Grant’s work receives support from the NIGMS Diversity Supplement Program (DSP), which is designed to improve the recruitment and training of promising researchers from diverse backgrounds. Diversifying the scientific workforce can lead to new approaches to research questions, increased recruitment of diverse volunteers for clinical studies, an improved capacity to address health disparities, and many other benefits.

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Quiz: Sepsis Science

September 13, 2023
Many oblong bacteria, some with a narrow band near their middle.
Bacteria are the most common triggers of sepsis.
Credit: Mark Ellisman and Thomas Deerinck, National Center for Microscopy and Imaging Research, University of California San Diego.

At least 1.7 million adults in the United States develop a life-threatening condition called sepsis each year. Sepsis is an overwhelming or impaired whole-body immune response that’s most often caused by bacterial infections. However, it can also be caused by viral infections, such as COVID-19 or influenza; fungal infections; or other injuries, including physical trauma.​​ Anyone can get sepsis, but there’s a higher risk for some people, such as those who are ages 65 and older, who have certain medical conditions, or who have recently experienced severe illness or hospitalization.

The early symptoms of sepsis can include fever, chills, rapid breathing or heart rate, disorientation, and clammy or sweaty skin. Because other conditions also have these symptoms, sepsis can be difficult to diagnose. NIGMS-supported researchers are working to increase our understanding of sepsis so that doctors can identify it more quickly and treat it more effectively.

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What Happens to Medicine in Your Body?

September 11, 2023
Cutaway diagram of the human body (head, arms, and torso) showing the blood (arteries in red and veins in blue) and internal organs. Drug delivery is shown by intravenous drip with a blue arrow into the arm, medicine tablet with a black arrow into the mouth, and inhaler with a blue arrow through the mouth into both lungs. The life of the drug in the body is shown by black arrows from mouth to stomach, from stomach to liver, from liver to heart, from blood to kidney, and from liver to intestines.
Medicines administered orally, by inhaler, and intravenously enter the stomach, lungs, and veins, respectively. They’re absorbed, then circulate throughout the body in the blood, are processed by the liver, and excreted by the kidneys and intestines. Credit: NIGMS.

Have you ever wondered what happens inside your body when you take a medicine? An area of pharmacology called pharmacokinetics is the study of precisely that. Here, we follow a medicine as it enters the body, finds its therapeutic target (also called the active site), and then eventually leaves the body.

To begin, a person takes or is given a dose of medicine by a particular route of administration, such as by mouth (oral); through the skin (topical), mucous membranes
(nasal), or lungs (inhaled); or through a needle into a muscle (intramuscular) or into a vein (intravenous). Sometimes medicines can be administered right where they’re needed, like a topical antibiotic ointment on a scrape, but most medicines need to enter the blood to reach their therapeutic target and be effective. Those are the ones we’ll continue following, using the common pharmacokinetic acronym ADME:

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Celebrating 10 Years of Biomedical Beat

August 16, 2023

This August marks 10 years of the blog! Throughout the past decade, we’ve brought you blog posts that explore basic science topics, quiz your knowledge, showcase cool images, and more! Some of our most-read favorites include:

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What Is Pharmacology?

August 14, 2023
A collage of different cartoon images showing scientists working across a spectrum of basic science, chemistry, biology, research, genetics, and medicine, illustrated by images of an EKG readout, test tubes and a pipette, a syringe and medicine bottle, a chemical structure, a microscope, a pill bottle and pill, a data chart, a hospital, a DNA strand, and a human silhouette.
Credit: iStock.

Pharmacology is the study of how molecules, such as medicines, interact with the body. Scientists who study pharmacology are called pharmacologists, and they explore the chemical properties, biological effects, and therapeutic uses of medicines and other molecules. Their work can be broken down into two main areas:

  • Pharmacokinetics is the study of how the body acts on a medicine, including its processes of absorption, distribution, metabolism, and excretion (ADME).
  • Pharmacodynamics is the study of how a medicine acts in the body—both on its intended target and throughout all the organs and tissues in the body.
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Investigating the Secrets of Cancer-Causing Viruses

August 1, 2023
A portrait of Dr. Mandy Muller.
Credit: Courtesy of Dr. Mandy Muller.

While she was in graduate school, Mandy Muller, Ph.D., became intrigued with viruses that are oncogenic, meaning they can cause cancer. At the time, she was researching human papillomaviruses (HPVs), which can lead to cervical and throat cancer, among other types. Now, as an assistant professor of microbiology at the University of Massachusetts (UMass) Amherst, Dr. Muller studies Kaposi sarcoma-associated herpesvirus (KSHV), which causes the rare AIDS-associated cancer Kaposi sarcoma.

A Continental Change

Dr. Muller has come a long way, both geographically and professionally, since her childhood in France. She was the first person in her family to graduate from high school, where she excelled in science, and went on to attend École Normale Supérieure (ENS) de Lyon, a research-oriented undergraduate institution in Lyon, France. “We spent weeks at a time in laboratory-based classes, working in real labs. That’s when I realized people could do research full-time, which caught my attention,” says Dr. Muller. She double-majored in biology and geology, and soon chose to focus her career on immunology and virology.

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Career Conversations: Q&A With Biomedical Engineer Elizabeth Wayne

July 19, 2023
A portrait image of Dr. Elizabeth Wayne.
Courtesy of Dr. Elizabeth Wayne.

“It’s so fun to try to make meaning from a confusing experimental result and talk to other scientists who are excited by the same questions you are,” says Elizabeth Wayne, Ph.D., an assistant professor of biomedical engineering and chemical engineering at Carnegie Mellon University (CMU) in Pittsburgh, Pennsylvania. We talked to Dr. Wayne about her career trajectory, research on immune cells, and belief that scientists can change the world.

Q: How did you first become interested in science?

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Building a Digital Immune System

June 28, 2023
A headshot of Dr. Helikar.
Credit: Courtesy of Dr. Tomas Helikar.

The power of computer code has been a longtime fascination for Tomas Helikar, Ph.D., a professor of biochemistry at the University of Nebraska-Lincoln (UNL). In college, when he learned he could use that power to help researchers better understand biology and improve human health, Dr. Helikar knew he’d found his ideal career. Since then, he’s built a successful team of scientists studying the ways we can use mathematical models in biomedical research, such as creating a digital replica of the immune system that could predict how a patient will react to infectious microorganisms and other pathogenic insults.

A Career in Computational Biology

Dr. Helikar first became involved in computer science by learning how to build a website as a high school student. He was amazed to learn that simple lines of computer code could be converted into a functional website, and he felt empowered knowing that he had created a real product from his computer.

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