『STEM-Talk』のカバーアート

STEM-Talk

STEM-Talk

著者： Dawn Kernagis and Ken Ford
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The most interesting people in the world of science and technologyFlorida Institute for Human and Machine Cognition 代替医療・補完医療 博物学 科学 自然・生態学 衛生・健康的な生活
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  • Episode 196: Dominic D’Agostino discusses advances in ketogenic metabolic therapy and hyperbaric oxygen therapy

    Episode 196: Dominic D’Agostino discusses advances in ketogenic metabolic therapy and hyperbaric oxygen therapy
    2026/06/11
    Today we have Dr. Dominic D’Agostino, who over the past 10 years has been a frequent guest on STEM-Talk. Today Dom joins us to give us an update on his recent research into ketogenic metabolic therapies, ketone supplements as well as hyperbaric oxygen therapy for traumatic brain injuries. Dom and his lab at the University of South Florida have published more than 20 papers since his last appearance on STEM-Talk in 2023. Dom is an Associate Professor in the Department of Molecular Pharmacology and Physiology at South Florida’s Morsani College of Medicine. Dom has a background in neuroscience, molecular pharmacology, nutrition and physiology. In addition to developing and testing metabolic-based therapies, Dom’s lab also investigates seizure disorders, brain cancer, neurodegenerative diseases and rare genetic-metabolic disorders. Show notes: [00:03:28] Dawn welcomes Dom back to the show and explaining that he has been quite busy since his last appearance, authoring or co-authoring more than 20 papers. Over the past several years, Dom has been helping to advance the science and application of ketogenic metabolic therapy (KMT) with colleagues at Moffitt Cancer Center, particularly focusing on using KMT to enhance immune-based therapies for certain types of cancers. Dawn asks Dom about this collaboration. [00:05:04] Dawn explains that ketogenic metabolic therapy is a dietary approach that focuses on a high-fat/low-carb diet to reduce glucose availability for cancer cells, potentially slowing their growth and improving treatment outcomes. It has been explored as a complimentary treatment for a variety of cancers including gliomas by shifting the metabolism of tumor cells away from glucose. Dawn asks Dom to explain what is involved in KMT. [00:06:58] Dawn clarifies that KMT requires less than 20-25 grams of carbohydrates per day, and that ketosis is a metabolic state in which the body switches from glucose metabolism to metabolizing fats in the form of ketones. Dawn goes on to explain that cancer cells typically consume glucose at a higher rate than normal cells. However, cancer cells are also very adaptable, and Dawn asks Dom to talk about this feature of cancer cells. [00:09:14] Ken explains that KMT has shown the most promise in treating high-grade gliomas, or brain cancers, such as glioblastoma, which is the most aggressive primary brain tumor in adults. Ken explains that Dom was part of a massive review titled “Clinical research framework proposal for ketogenic metabolic therapy in glioblastoma,” which proposed guidelines for the management of glioblastoma based on an understanding of cancer as a metabolic disease, particularly involving mitochondria. Ken asks Dom to talk about this review. [00:11:21] From a patient advocacy perspective, Ken notes that the review recommends that there should be an aggressive education campaign that can arm patients with knowledge about KMT and other novel therapies. Ken asks Dom to talk about that recommendation. [00:13:15] Ken asks about the process of cutting the review from upwards of 200 pages down to around 50 pages with 49 authors. [00:15:04] Dawn mentions that Dom was part of another paper in 2024 titled “Targeting the mitochondrial stem cell connection in cancer treatment – a hybrid orthomolecular protocol.” Dawn explains that this paper looked at the mitochondrial stem cell connection theory (MSCC), which argues that cancer originates from chronic oxidative phosphorylation insufficiency in stem cells. This insufficiency leads to the formation of cancer stem cells and abnormal energy metabolism ultimately resulting in malignancy. There were 16 research centers and organizations involved in this paper which introduced a hybrid orthomolecular protocol to target the mitochondrial stem-cell connection. Dawn asks Dom to give an overview of MSCC. [00:18:26] Dawn explains that in this paper Dom and his co-authors propose a protocol that would enhance oxidative phosphorylation and inhibit the primary fuels of cancer, glucose and glutamine. This would target both cancer stem cells and metastasis. Dawn asks Dom to explain why this concept is attracting so much interest as a potential therapeutic approach for cancer. [00:20:48] Dawn asks if Dom could discuss the orthomolecular protocol, which is an approach that focuses on preventing and treating diseases by correcting nutritional balances in the body. [00:24:41] Ken asks if the proposed dietary intervention in the orthomolecular approach is different from a standard or typical ketogenic diet. [00:26:48] Ken shifts the discussion to talk about ketone supplements, explaining that Dom recently published a paper titled “Divergent hepatic outcomes of chronic ketone supplementation.” Ken goes on to explain that ketone salts preserve liver health, while some ketone esters and precursors appear to drive inflammation and steatosis. There is a lot of interest in ketone supplementation because they substantially ...
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    1 時間 11 分
  • Episode 195: Doug Cooke discusses NASA’s challenges in the space race to the Moon and Mars

    Episode 195: Doug Cooke discusses NASA’s challenges in the space race to the Moon and Mars
    2026/05/21
    Our guest today is Doug Cooke, an aerospace consultant who spent 38 years at NASA’s Johnson Space Center in Houston and NASA Headquarters in Washington, D.C. STEM-Talk host and IHMC founder Dr. Ken Ford, a former Associate Director of NASA’s Ames Research Center and Director of NASA’s Center of Excellence in Information Technology, interviewed Doug just four days after the astronauts of NASA’s Artemis II mission splashed down in the Pacific Ocean following a historic 10-day roundtrip from the Earth to the Moon. In today’s episode, Ken and Doug discuss the Artemis mission as well as NASA’s plans to return humans to the lunar surface by 2028. Doug also shares his concern that China could one day surpass America’s leadership role in human spaceflight. During his 38 years at NASA, Doug played critical roles in the Space Shuttle, International Space Station and Human Exploration spaceflight programs. During the last three years of his NASA career, he served as Associate Administrator of the Exploration Systems Mission Directorate, which oversees the development of systems critical to NASA’s plans for human exploration of the Moon and Mars, including the Artemis program. Show notes: [00:04:05] Ken opens our interview with Doug by talking about the Artemis II mission, which is the first crewed mission beyond low earth orbit since Apollo 17 in 1972. Harrison Schmidtt, who was on Apollo 17, was our guest on episode 4. Ken asks Doug for his key takeaways of the Artemis II mission, which set the record for a manned mission from Earth, traveling 252,756 miles into space and breaking Apollo 13’s record. [00:06:18] Ken explains that the Artemis missions signal a new age of space exploration as well as the beginning of a new space race between the U.S. and China. NASA aims to land humans on the Moon by 2028 while China expects to land humans on the moon in 2030. Ken has previously stated that he does not have confidence in NASA’s current mission architecture to achieve NASA’s stated goal of 2028, and asks Doug for his thoughts on the matter. [00:07:28] Ken asks if it is true that Yuri Gagarin, who become the first human to fly into space, is what initially sparked Doug’s interest in science and space. [00:08:54] Ken notes that Gagarin’s orbit around the earth inspired President Kennedy to vow that the United States would ramp up its space program and become the first nation to land a man on the moon. Ken mentions that he believes the Apollo 11 mission, which landed astronauts Neil Armstrong and Buzz Aldrin on the lunar surface, was one the greatest technological advances in world history. Ken asks Doug for his thoughts on the success of the Apollo program. [00:10:28] Ken mentions that Doug went to college at Texas A&M and majored in aerospace engineering. Kens asks Doug how he got a job at NASA after graduating. [00:12:21] Ken explains that Doug was instrumental in the development of the space shuttle and the International Space Station during his time at NASA. Doug talks about what it was like working on those projects at NASA. [00:15:16] Ken mentions that Doug also had an instrumental role in the Lunar Reconnaissance Orbiter (LRO), Lunar Crater Observation and Sensing Satellite (LCROSS), and the broader Exploration Technology Program. Ken points out that Doug became head of the exploration technology program in 1990 under then NASA Associate Administrator Mike Griffin, who was our guest on episodes 134 and 189. Ken asks Doug about meeting Mike. [00:16:17] Ken mentions that Mike Griffin and Lisa Porter were our guests on episode 189, where they voiced concerns about NASA’s current plans for a return to the moon. Ken goes on to mention that near the end of Doug’s career at NASA, he was the head of Exploration Systems Mission Directorate (ESMD), which is responsible for the development of systems critical to NASA’s plans for future exploration of the Moon and Mars. Ken asks Doug to talk about his role as head of the directorate and the work he did there. [00:18:55] Ken explains that Doug has written extensively on the issues with the Artemis mission architecture, most notably in a recent article for space news. Before jumping into the article, Ken asks Doug to talk about why it is important and also a national-security concern that we return to the moon before China. [00:21:12] Looping back to Doug’s op-ed in Space News, Ken notes that Doug stressed the need for NASA to develop a plan-B for the Artemis mission, with Doug and others noting that without a plan-B, the U.S. risks of losing the space race to the Moon. Doug has also gone on record to say that China has a far simpler, more direct, and more technically conservative plan than NASA. Ken asks Doug to elaborate on this. [00:22:37] Ken asks Doug to talk about the issues he and others have identified with NASA’s current proposed landing system. [00:26:14] Ken asks Doug to give a better understanding for the listeners of just ...
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    59 分
  • Episode 194: Tommy Wood discusses how to future-proof the adult brain

    Episode 194: Tommy Wood discusses how to future-proof the adult brain
    2026/04/16
    Neuroscientist and frequent STEM-Talk guest Dr. Tommy Wood rejoins us today for part two of our interview about Tommy’s book that is fresh off the press and now available in bookstores and Amazon, “The Stimulated Mind: Future-Proof Your Brain from Dementia and Stay Sharp at Any Age.” Tommy is an Associate Professor of Pediatrics and Neuroscience at the University of Washington, where his laboratory focuses on brain health across human lifespan. Tommy is a colleague and good friend who also is a Visiting Research Scientist here at IHMC. In part one of our interview with Tommy, episode 193, we discussed his mission to dispel the myth that the brain is doomed to decline with age. Tommy gave us a fascinating history of neuroscience and how researchers go about studying the brain. Tommy also talked about what is holding us back in terms of addressing an ever-increasing burden of cognitive and mental health disorders that we are experiencing not only here in the U.S., but also around the world. Today, Tommy shares science-backed strategies to help people future-proof their brains. We talk about the importance of diet and exercise in terms of brain health as well as the importance of stimulating and challenging our brains throughout our lifespans. Tommy has a bachelor’s degree in biochemistry from the University of Cambridge, a medical degree from the University of Oxford, and a Ph.D. in Physiology and Neuroscience from the University of Oslo. Show notes: [00:03:55 Dawn welcomes Tommy back for part two of his interview by asking him about his recent trip to the UK. [00:04:32] Dawn recaps where we left off with Tommy in part one of our interview, explaining that when we last spoke with Tommy about his book, The Stimulated Mind, we focused on dispelling myths about the adult brain, in particular the idea that the adult brain is fixed. [00:05:22] Ken asks Tommy about advice his father offered when Tommy got accepted into the University of Cambridge. [00:08:03] As a follow-up, Dawn asks if it’s fair to say that when Tommy first started working with patients, what he learned in textbooks and classrooms didn’t necessarily translate perfectly into the real world and that there is no one-size-fits-all fix. [00:11:54] Ken asks Tommy to expand on what he wrote in his book about the fact that while science can give us a framework for understanding the world, we are always only one experiment or one well-phrased question away from having to completely rethink everything. [00:16:44] Dawn launches into talking about what people can do to future-proof their brain, starting with diet. In the Nourish chapter of his book, Tommy seeks to help people see food as an opportunity for nourishment rather than a source of stress since there are so many conflicting messages about diet and healthy foods out there. Dawn asks Tommy if his opinion is that there is no one-size-fits-all diet? [00:22:21] Dawn explains that what we eat has a direct effect on our long-term health and dementia risk, and within the literature a common theme that emerges regarding eating for brain health is maximizing nutrients. Dawn asks Tommy to talk about what this looks like. [00:24:49] Dawn points out that people today are inundated with advice from health influencers in all directions. She asks Tommy to talk about his advice to tune out the noise and instead of chasing whatever supplement or super food that is currently in vogue, simply to focus on filling your diet with whole, nutrient dense foods. [00:29:43] Ken explains that nutrients are sometimes hard to get in the diet, with somewhere between 15 and 25 percent of people in the U.S. and Europe having inadequate intakes of most B vitamins and even higher deficits in iron, magnesium, calcium, and vitamins C and E, with nutrient deficiencies differing by sex. Women on average are lower in B12, iron, iodine, and calcium, while men are typically lower in magnesium, zinc, and various B vitamins. Ken asks Tommy to give an overview of what these nutrients do in the brain that makes them so critical to cognitive function. [00:35:51] Ken follows up on this discussion by moving on to the section in Tommy’s book titled “To Supplement or Not to Supplement” where he discusses the evidence of the benefits of targeted supplementation to fill in the nutrient gaps that exist in the diet. Ken asks Tommy to talk about this more in depth and maybe give a framework by which people can think about adding or not adding key nutrients via supplementation. [00:41:21] Given the controversial reputation red meat has, Ken asks Tommy to weigh in on how he thinks people should think about red meat. [00:46:26] Fish as well, Dawn explains, has become controversial, due to microplastics and mercury concerns. However, given the positive effects on cognitive health that fish consumption has, Dawn asks Tommy to talk about the costs and benefits of increasing fish consumption. [00:50:30] Ken asks about the genetic basis for...
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    1 時間 56 分
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