Our digestive system is made up of the digestive tract — a series of organs from the mouth to the anus — that help the body break down and absorb food to create energy. Gastroenterology focuses on the causes, prevention, diagnosis and treatment of diseases of the digestive system, including the esophagus, stomach, small intestine, colon and rectum, pancreas, gallbladder and bile ducts.
This conversation with the globally recognized team of physician-scientists at UC San Diego Health includes the latest research, innovations, therapies and potential cures for digestive diseases. They discuss Inflammatory Bowel Disease, advanced techniques in endoscopic surgery, and paradigm-shifting treatments to manage esophageal conditions.
U.S. News & World Report ranks UC San Diego #1 in the world for gastroenterology and hepatology (liver) research, based on physicians’ research reputation and publications.
Watch Trusting Your Gut – Insights from World Leaders in Gastroenterology – Health Talks.
That wearable fitness device on your wrist is measuring so much more than your exercise levels. Digital tools offer unprecedented opportunities in health research and healthcare but it can come at the cost of privacy. Six days of step counts are enough to identify you among a million other people – and the type of inferences that can be made from other everyday behaviors is growing rapidly.
Camille Nebeker, EdD, MS is Associate Professor of Behavioral Medicine in the Department of Family Medicine & Public Health at the UC San Diego School of Medicine. She discusses the ethical considerations of informed consent and potential harms and benefits of these technologies. She also shares ideas on how we can work together to create systems that define and encourage safe digital health research and practice.
Watch — The Digital Revolution: Ethical Implications for Research on Healthy Aging
In 2014 with vaping newly on the rise, Dr. Laura Crotty Alexander joined us to talk about the potential health risks https://uctv.tv/shows/E-Cigarettes-Vaping-and-MRSA-Health-Matters-28132.
Five years later, we revisit the topic to see how the research is bearing out how e-cigarettes and their usage has evolved. Dr. Alexander shares a physician’s view of the specific dangers of vaping.
For more programs bringing the public and scientists together to explore how science can best serve society, watch Exploring Ethics https://uctv.tv/exploring-ethics/
Watch — How Bad Are E-cigarettes? – Exploring Ethics
Science fiction has long promised an age of interplanetary human existence. Scenes of spaceships hopping from one galaxy to the next are so common, it seems almost inevitable that future generations will one day vacation on Mars. But, if we are ever going to achieve life on other planets, we first have to figure out if the human body can tolerate it.
Some of the best data we have on the subject comes from American astronaut Scott Kelly. Kelly spent a year living on the International Space Station while his twin brother Mark, also an astronaut, was on Earth. Scientists from all over the country studied the impact life in space had on Scott Kelly, and compared changes in his body to his brother.
One of those scientists was UC San Diego Professor of Medicine, Michael G. Ziegler, MD. In a recent talk at UC San Diego Extension’s Osher Lifelong Learning Institute, Ziegler detailed some of the more interesting findings from the study. Scott Kelly lost weight. There were significant changes to his gene expression. He lost collagen. His carotid artery thickened. His bones became less dense. His eye shape changed, forcing him to wear glasses. While he was in space, his performance on cognitive tests improved. But, his performance plummeted after returning to Earth, and never quite returned to pre-launch levels.
Despite all of this, Ziegler has reason to be hopeful about long-term space travel. He says the year in space study illuminated many of the challenges, and gave researchers some ideas of how to overcome them. Still, it’s probably a little early to start planning your trip to the red planet.
Watch — How a Year in Space Affects the Human Body with Dr. Michael G. Ziegler — Osher UC San Diego
Our life-spans are ever-increasing, but our health-spans are not, leading to long periods of unpleasant and expensive suffering with chronic conditions. Many of these conditions have recently been linked to the microbiome. We are constantly shaping our microbiomes through the foods we eat, the environments we experience, even the people we live and work with.
Through the American Gut Project, the largest crowdsourced and crowdfunded citizen-science project yet conducted, we now know about the microbiomes of many types of people, from the healthiest to the sickest. Potentially real-time analysis of our microbiomes could guide our daily decisions in a way that optimizes our microbiomes for extending our health-span. Although the potential benefits of such research are clear, what are the risks (e.g., privacy concerns) that need to be identified and addressed?
Rob Knight is Professor of Pediatrics, Bioengineering and Computer Science & Engineering and is Director of the Center for Microbiome Innovation at UC San Diego. He authored “Follow Your Gut: The Enormous Impact of Tiny Microbes” and co-authored “Dirt is Good: The Advantage of Germs for Your Child’s Developing Immune System.” His work combines microbiology, DNA sequencing, ecology and computer science to understand the vast numbers of microbes that inhabit our bodies and our planet. He was recently honored with the 2017 Massry Prize for his microbiome research.
Watch Shaping Our Dynamic Microbiomes For Lifelong Health – Exploring Ethics