834: Examining the Genetics and Molecular Biology of Brain Aging in Humans and Non-Human Primates - Dr. Elaine Guevara
Release Date: 10/13/2025
People Behind the Science Podcast Stories from Scientists about Science, Life, Research, and Science Careers
Dr. Dave Jackson is Professor of Plant Genetics at Cold Spring Harbor Laboratory. Dave is driven to understand what makes plants grow and why various types of plants look different from each other. His research examines how genes control plant shapes, including investigations into the role of genetics and stem cells. The long-term goal is to turn this foundational knowledge into tools that can improve agriculture. Outside the lab, Dave works to keep a healthy balance by getting outdoors to go hiking, backpacking, and camping. He also dedicates time to art and music, which are abundant in New...
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Dr. Joyce Ohm is an Associate Professor of Oncology in the Department of Cancer Genetics and Genomics at the Roswell Park Comprehensive Cancer Center. Joyce’s research examines the epigenomics involved in development and disease, particularly in cancer. Epigenomics is the study of how your cells package and store the information in your genome. Individual cells within your body package the genome differently to be able to most efficiently use the genes they need. This is important during development, but there are also problems with the epigenome in cancer. In her free time, Joyce enjoys...
info_outlinePeople Behind the Science Podcast Stories from Scientists about Science, Life, Research, and Science Careers
Dr. Bryan Cassone is a Professor and Chair in the Department of Biology at Brandon University in Canada. He is a molecular entomologist. Drawn to the sheer variety of fascinating questions insects can help answer, he is more of a generalist than many scientists in his field. His work spans agricultural and medical pests, plus curiosity-driven projects like studying waxworms (plastic-eating caterpillars). Outside the lab, Bryan is a big football fan. After playing football and wrestling in college, Bryan now loves watching both college and NFL games. He also enjoys staying active with swimming...
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Dr. Natalia Vergara is an Assistant Professor of Ophthalmology at the Sue Anschutz-Rodgers Eye Center, University of Colorado School of Medicine on the Anschutz Medical Campus. Natalia uses stem cells to understand how the retina forms during development and how it degenerates during disease with the goal of developing therapies to help patients who suffer from vision loss. For her research, Natalia uses a type of stem cells called induced pluripotent stem cells which can be reprogrammed so they can form any type of cell in the body. With these cells, they can make human retina tissue using...
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Dr. Randy Blakely is a Professor of Biomedical Science at Florida Atlantic University and Executive Director of the Florida Atlantic University Brain Institute. Randy is examining how neurons control neurotransmitter signaling, as well as how medicinal drugs and drugs of abuse impact neurotransmitters. He is interested in how normal neurotransmitter regulation and changes in neurotransmission due to drugs ultimately impact behavior. Randy lives in beautiful South Florida near the Everglades, and he likes to spend is free time enjoying nature and observing the local wildlife. While commuting...
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Dr. Nirosha J. Murugan is a Tier II Canada Research Chair in Tissue Biophysics as well as Distinguished Research Chair and Assistant Professor in the Department of Health Sciences at Wilfrid Laurier University. Her research focuses on how our bodies, cells, and tissues communicate with each other from the molecular scale all the way up to our organs, physiology, and consciousness. She is interested in the kinds of information that are shared, including light, electromagnetic fields, and electricity, as well as the physics of how the information is transmitted. Her lab develops tools to record...
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Dr. Sonia Contera is an Associate Professor of Biological Physics at the University of Oxford Physics Department, and a Research Fellow of Green Templeton College. She is also the author of the recently released book Nano comes to Life. Sonia is a physicist who is interested in biology and the mechanics of biology across different space and time scales. She develops experiments and techniques to understand the physics that allow biological systems to build nano-scale molecules into cells, organs, tissues, and organisms. Projects in Sonia’s lab include studying and treating pancreatic tumors,...
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Dr. Donovan German is Associate Professor of Ecology & Evolutionary Biology in the School of Biological Sciences at the University of California, Irvine. Donovan aims to better understand how materials move through the gut, which enzymes are secreted during digestion, what microbes are present, and what role these microbes play. In particular, Donovan focuses his research on animals with unusual diets, such as fish that eat wood or algae, to understand how these foods are digested and how animals can survive on these lower quality foods. Beyond his interests in science, Donovan loves...
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Dr. Trudy G. Oliver is a Professor in the Department of Pharmacology & Cancer Biology as well as a Duke Science and Technology Scholar at Duke University. Trudy’s research focuses on small cell lung cancer, a disease known for its remarkable ability to "shape-shift" or undergo cellular plasticity. This adaptability allows cancer cells to change types and develop different therapeutic vulnerabilities (or invulnerabilities), making treatment especially challenging and preventing the development of a one-size-fits-all approach. When she’s not in the lab, Trudy unwinds with walks, jogs,...
info_outlinePeople Behind the Science Podcast Stories from Scientists about Science, Life, Research, and Science Careers
Dr. Ian Winship is an Associate Professor and a former Alberta Innovates Health Solutions Scholar in the Department of Psychiatry at the University of Alberta. He is also Director of the Neurochemical Research Unit there. Ian is interested in understanding how we can reduce the damage early after a stroke and ways we can improve recovery in people who had a stroke a long time ago. His research also examines changes in the brain that lead to symptoms in other brain disorders like schizophrenia. Much of Ian’s free time is spent on or near the ice rink. He coaches his son’s hockey team and...
info_outlineDr. Elaine Guevara is a Lecturer in Evolutionary Anthropology at Duke University. She teaches biology and conducts research on the evolution of primates using molecular approaches. One area of Elaine's research examines the evolution of brain aging and how brain aging differs between humans and our primate relatives, including certain species of lemurs. When it’s time to relax, Elaine loves to read. She is particularly fond of Golden Age mysteries, similar modern mystery authors, investigative journalism, history, and social science content. In addition to reading, Elaine enjoys biking, being outdoors, exploring the mountains, observing wildlife, playing games, sipping wine, and hanging out with friends. She received her BA in biological anthropology from the University of California, Santa Cruz, and her MA in biological anthropology from Hunter College. During her master’s program, Elaine also worked at the American Museum of Natural History as an Archives Assistant and subsequently a Database Assistant. She then received her PhD from Yale University. Afterwards, Elaine conducted postdoctoral research at The George Washington University. She joined the faculty at Duke in 2021, and she also served briefly as a faculty member at the University of North Carolina Wilmington. In our interview, Elaine shares more about her life and science.