Modern Healthspan

USC Gerontology Professor Dr. Changhan David Lee breaks down the discovery of MOTS-c, a novel mitochondrial-derived peptide that functions as an exercise mimetic, cellular stress responder, and immunomodulator.

Are mitochondria more than just cellular powerhouses? In this episode of Modern Healthspan, Dr David Lee, Associate Professor at the USC Leonard Davis School of Gerontology and co-discoverer of MOTS-c, joins us for a deep dive into the emerging world of mitochondrial-derived peptides (MDPs). Dr. Lee explains how these small microproteins, encoded within the mitochondrial 12S rRNA locus, act as critical retrograde signaling molecules. We explore how MOTS-c translocates to the nucleus during metabolic stress, coordinates with AMPK and hypothalamic POMC neurons, and functions as an interferon-responsive host defense peptide. Additionally, Dr. Lee shares findings from preclinical models examining sarcopenia, muscle homeostasis, and age-related physical capacity, while providing an update on the current regulatory state, WADA anti-doping classification, and human translational pipeline of MDP research.

🌐Links in this video Dr David Lee's page at USC https://gero.usc.edu/faculty/lee/

📚 References & Scientific Papers Mentioned: (2015). The mitochondrial-derived peptide MOTS-c promotes metabolic homeostasis and reduces obesity and insulin resistance. Cell Metabolism, 21(3), 443–454. https://pmc.ncbi.nlm.nih.gov/articles/PMC4350682/ (2021). MOTS-c is an exercise-induced mitochondrial-encoded regulator of age-dependent physical decline and muscle homeostasis. Nature Communications, 12(1), 470. https://www.nature.com/articles/s41467-020-20790-0 (2021). Mitohormesis in hypothalamic POMC neurons mediates regular exercise-induced high-turnover metabolism. Cell Metabolism, 33(2), 334–349. https://www.sciencedirect.com/science/article/pii/S1550413121000036 (2018). The mitochondrial-encoded peptide MOTS-c translocates to the nucleus to regulate nuclear gene expression in response to metabolic stress. Cell Metabolism, 28(3), 516–524. (2021). Mitochondrial-encoded MOTS-c prevents pancreatic islet destruction in autoimmune diabetes. Cell Reports, 36(4), 109447. MOTS-c Coordinates Inter-Organellar Proteostasis for Adaptation to Chronic Metabolic Stress https://www.biorxiv.org/content/10.64898/2026.06.22.733272v1

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Discover how AI-guided Cardiac CT scanning detects hidden soft plaque and allows preventive cardiology to track and reverse heart disease before symptoms start

Cardiovascular disease remains the leading cause of mortality worldwide, yet over half of affected individuals experience no warning signs before a major event. In this deep-dive interview, Dr. John Osborne, triple-board-certified preventive cardiologist and Chief Medical Officer at ClearCardio, outlines a paradigm shift from reactive symptom management to proactive disease eradication. Dr. Osborne explains why traditional blood panels and risk calculators often fail at the individual level, how arteries hide soft plaque through outward remodeling, and why standard calcium scores can offer a dangerous false sense of security. Discover how cutting-edge AI-enhanced Coronary CT Angiography (CCTA) allows clinicians to visualize, map, and measure arterial plaque down to $0.1mm. Learn how tailored lifestyle strategies, lipid management, and emerging therapeutics targeting Lp(a) can stabilize and reverse plaque to optimize long-term healthspan.

🌐Links in this video

ClearCardio Web Page: https://clearcardio.com/ ClearCardio YouTube Channel : https://www.youtube.com/@ClearCardio PREVENT Online calculator - https://professional.heart.org/en/guidelines-and-statements/prevent-calculator

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Discover how original Yamanaka co-author Dr. Koji Tanabe uses automated iPSC cassettes and autologous stem cell secretomes to reverse cellular aging and repair damaged joints.

In this landmark episode of Modern Healthspan, we sit down with Dr. Koji Tanabe, founder and CEO of iPS, Inc. and co-author of the historic 2007 Nobel Prize-winning paper on human-induced pluripotent stem cells (iPSCs). Dr. Tanabe shares how twenty years of technological advancement have raised iPSC reprogramming efficiency from under 1% to over 80%, while cutting manufacturing costs through automated cleanroom cassettes. We discuss practical longevity applications available today, including autologous stem cell banking from a simple blood draw, secretome extract therapies for joint and skin rejuvenation, and Japan's approval of iPSC-derived heart tissue. Finally, Dr. Tanabe offers a critical scientific perspective on in vivo partial reprogramming, detailing the cellular identity loss and tumor risks associated with OSK gene delivery. Watch now to learn where stem cell age reversal truly stands today.

🌐Links in this video

I Peace home page https://ipeace.com/en/ For Individuals https://mypeace-personal-ipscbanking.com/en/ Dr Tanabe's YouTube channel: https://www.youtube.com/@UC7Vjvz6sM1Olcw_NOXPIkCw *Scientific Backing & Citations:* 1. Takahashi, K., Tanabe, K., Ohnuki, M., Narita, M., Ichisaka, T., Tomoda, K., & Yamanaka, S. (2007). Induction of pluripotent stem cells from adult human fibroblasts by defined factors. Cell, 131(5), 861-872. https://doi.org/10.1016/j.cell.2007.11.019 2. Life Biosciences' ER100 In Vivo Partial Reprogramming Phase 1 Clinical Trial (FDA Cleared). 3. Japanese Act on the Safety of Regenerative Medicine (ASRM) (regulatory framework for autologous cellular extract medical services).

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Discover the truth about population-wide NAD+ optimization with Dr. Jin-Xiong She from Jinfinity Precision Medicine. We break down the clinical flaws behind the recent Janssen and Houtkooper human blood study claiming NAD levels do not decline with age or lifestyle habits. Learn how ethnicity, health status, NMN vs. NR synergies, and high-dose niacin vascular inflammation impact intracellular biomarkers, and discover the true optimal blood reference target for healthy aging.

Does human NAD+ actually decline with age, and do popular precursors like NMN or NR work for everyone? In this episode of Modern Healthspan, we sit down with clinical frameworks pioneer Dr. Jin-Xiong She, founder of Jinfinity Precision Medicine, to dissect recent human trial publications. Dr. She critiques a controversial recent paper asserting that blood NAD+ remains static across age groups, exposing its narrow testing intervals and misleading over-generalizations. Drawing from thousands of independent patient datasets, Dr. She details the sharp, non-linear NAD drop off that occurs between ages 20 and 30, while revealing the hidden impacts that ethnicity and background health status have on your baseline cellular metrics. We also explore the optimal human blood target range, shifting from a baseline of 40 µmol to a clinical sweet spot between 55 and 80 µmol, and highlight the surprising cardiovascular inflammation risks linked to over-supplementing with high-dose niacin

🌐Links in this video

https://www.jinfiniti.com/

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Discover why universally healthy diets don't exist and how metatranscriptomics (RNA sequencing) can track biological aging and reverse chronic disease risk before symptoms start.

In this episode of Modern Healthspan, we sit down with Dr. Momo Vuyisich, co-founder of Viome and former lead genomics scientist at Los Alamos National Laboratory. Dr. Vuyisich shares why sequencing microbial DNA only tells part of the story, and why tracking dynamic RNA expression (metatranscriptomics) is the true frontier of precision longevity. We explore why standard "superfoods" can trigger inflammation in specific individuals, how the gut microbiome loses structural resilience over decades due to preservatives and hidden antibiotics, and how Viome's AI engine maps complex molecular pathways like butyrate production and LPS endotoxins. Dr. Vuyisich also introduces his vision for a "Manhattan Project" for chronic illnesses like multiple sclerosis and pancreatic cancer, challenging the current reactive models of academia and pharmaceutical industries. Turn your data into actionable preventive medicine with this deep dive into systems biology.

🌐Links in this video

Links to the Viome webpages https://www.viome.com/ - For consumers https://www.viomepro.com/ - for Healthcare practitioners Viome YouTube Channel : https://www.youtube.com/@Viome 🌐Academic Reference Context All papers: https://www.viome.com/publications Mentioned in this paper: Metatranscriptomics-Derived Disease Risk Scores as a Preventive, Diagnostic, and Treatment Support Tool https://www.medrxiv.org/content/10.64898/2026.05.29.26354333v1 The Human Gut Microbiome Activity Is Resilient and Stable for up to Six Months: A Large Stool Metatranscriptomic Study https://www.mdpi.com/2076-2607/14/4/835

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Is your oral health secretly dictating your cardiovascular and metabolic aging? Dr. Purnima Kumar, Chair of Periodontics at the University of Michigan, joins us to explain why the mouth must be integrated back into systemic medicine and how oral dysbiosis accelerates chronic conditions like heart disease and diabetes.

We have treated oral health in isolation for decades, but modern longevity science is proving that the oral cavity is a primary driver of systemic wellness or decay. In this comprehensive interview, globally recognized investigator Dr. Purnima Kumar reveals the staggering scale of the oral microbiome, which contains a bacterial population matching or exceeding the rest of the gut system. Dr. Kumar details how these "friends with benefits" code for critical metabolic processes, such as converting green leafy vegetables into cardiovascular-protective nitric oxide, that human DNA cannot perform on its own. However, when routine oral hygiene slips or systemic diseases like diabetes create a hyper-inflammatory environment, this delicate ecosystem undergoes a dangerous lifestyle shift from normobiosis to dysbiosis. This shift triggers chronic immune activation, allows oral bacteria to colonize arterial plaque, and worsens metabolic syndrome. Discover the clinical impact of advanced glycation end products (AGEs) in your gum tissue, why standard antimicrobial mouthwashes might be sabotaging your vascular health, and how resetting your oral ecology through targeted periodontal therapy can dramatically reduce systemic inflammatory scores.

🌐Links in this video

Dr Kumar's page https://dent.umich.edu/directory/purnima-kumar-dds-phd

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Discover how pulsed electromagnetic field (PEMF) therapy can mimic the systemic benefits of exercise, reverse sarcopenia, and activate mitochondrial health with Dr. Alfredo Franco-Obregón from the National University of Singapore. Learn how "magnetic mitohormesis" stimulates the TRPC1 calcium channel axis to improve muscle strength, boost ATP production, and fight chronic inflammation without mechanical joint stress.

Can you get the metabolic benefits of a workout without lifting a single weight? In this episode of Modern Healthspan, we sit down with Dr. Alfredo Franco-Obregón, head of the BICEPS Lab at the National University of Singapore and scientific founder of QuantumTX. Dr. Franco-Obregón shares his groundbreaking research on "magnetic mitohormesis"; the science of using low-energy, low-intensity pulsed electromagnetic fields (PEMF) to stimulate cellular adaptation and muscle regeneration. We dive deep into the biological mechanisms, explaining how an evolutionarily tuned cellular antenna called the TRPC1 calcium channel picks up magnetic signals to trigger mitochondrial respiration, increase ATP budget, and release health-promoting myokines into the bloodstream. Dr. Franco-Obregón also shares remarkable data from recent human clinical trials demonstrating a powerful systemic "secretome" response that slows age-related muscle atrophy, improves bone density, and has even shown profound anti-cancer properties in vitro. Whether you are an aging individual combating sarcopenia or an athlete looking to speed up recovery, this episode uncovers a revolutionary frontier in longevity technology

🌐Links in this video

https://discovery.nus.edu.sg/4445-alfredo-francoobregon

Quantum TX website https://www.quantumtx.com/

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Discover how advanced blood-based assays and multi-modality screening can identify silent cellular changes before they impact your longevity protocol.

Traditional cancer screenings are constrained by structural limitations, capturing less than twenty percent of eventual diagnoses due to strict age thresholds, invasive procedures, and systemic healthcare delays. Dr. Tarek Mouhieddine from the Dana-Farber Cancer Institute introduces a comprehensive strategy for multi-cancer early detection that combines circulating tumor biomarkers, DNA methylation profiling, and whole-body MRIs. This multi-layered screening architecture seeks to identify up to fifty cancer subtypes at stage one, where therapeutic interventions achieve the highest cure rates. The discussion details how tracking biomolecular trends through annual blood draws allows for early intervention without the radiation risk of repetitive CT scans or the complications of premature tissue biopsies. Dr. Mouhieddine also emphasizes that maintaining baseline cellular health preserves physiological resilience, directly dictating how well an individual tolerates therapeutic interventions. This framework offers actionable insights for individuals over 50 looking to optimize their preventative diagnostic protocols.

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Discover how to tap into your body's ultimate internal repair system and unlock the hidden regenerative power of your own stem cells.

In this episode of Modern Healthspan, we explore the extraordinary capability of the human body to heal itself from within. Stem cell scientist Christian Drapeau breaks down how our bone marrow acts as a continuous engine for cellular renewal, deploying stem cells to target, repair, and revitalize damaged tissues. While our natural baseline release shifts over time, groundbreaking clinical data reveals that we can actively encourage our body to release fresh waves of its own stem cells into circulation. We discuss a remarkable six-month human trial where daily stem cell mobilization successfully helped restore normal heart function in chronic heart failure patients. You will also learn practical protocols to optimize this internal repair system using fasting, blood flow support, and advanced recovery tools like PEMF to guide these powerful cells exactly where your body needs them most.

🌐Links in this video

Stemregen home page: https://www.stemregen.co/

Context: Mentioned by the host and Christian regarding the work of Doris Taylor, where a mouse heart muscle was digested away leaving a collagen scaffold that was subsequently repopulated with bone marrow stem cells.

Title: Regeneration of functional myocardium from a whole acellular heart scaffold

Lead Author: Doris A. Taylor

Publication: Nature Medicine

DOI: 10.1038/nm1684Link: https://www.nature.com/articles/nm1684

Medical & Safety Disclaimer:

The content of this video and description is provided for informational and educational purposes only. It is based on academic research and clinical observations within the field of regenerative medicine. This information is not intended to serve as medical advice, diagnosis, or treatment for any health condition. Always consult with a qualified healthcare professional or specialist before altering your medical regimen, introducing new supplements, or interpreting data related to chronic health conditions such as congestive heart failure, COPD, or Parkinson’s disease.

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Harvard Professor Dr. JoAnn Manson reveals the final results of the VITAL trial: a landmark study on Vitamin D, telomeres, and disease prevention.

Is Vitamin D the most underrated molecule in longevity science? Dr. JoAnn Manson, Professor of Medicine at Harvard Medical School and lead investigator of the massive VITAL trial, joins us to present groundbreaking new data. We move past the traditional focus on bone health to explore how 2,000 IU of Vitamin D preserves telomere length, effectively slowing biological aging by three years. Dr. Manson discusses the 22% reduction in autoimmune diseases and the 17% reduction in advanced metastatic cancers found within the 25,000-participant study. We also tackle the "BMI Gap", the critical reason why Vitamin D benefits are often blunted in certain populations, and the importance of the Vitamin D/Omega-3 synergy. This conversation provides a definitive clinical roadmap for anyone using these supplements to extend their healthspan. Rooted in gold-standard randomized controlled trial data, this is an essential update on the science of aging well.

MEDICAL DISCLAIMER: Modern Healthspan provides reports on peer-reviewed longevity research. We do not provide medical advice, diagnosis, or treatment. The clinical findings presented by Dr. JoAnn Manson from the VITAL trial are for informational use only. Please see your physician before starting 2,000 IU of Vitamin D or any other supplement protocol.

🌐Links in this video

The VITAL Study home page: https://www.vitalstudy.org/ 🔬 Peer-Reviewed Research Cited

The Autoimmune Breakthrough (VITAL Trial)

Title: Vitamin D and marine omega

fatty acid supplementation and incidence of autoimmune disease: VITAL randomized controlled trial

Journal: The BMJ DOI: 10.1136/bmj-2021-066452 PubMed: 38272846

Impact: This landmark study of 25,871 participants demonstrated that five years of Vitamin D supplementation (2000 IU/day) resulted in a 22% lower rate of confirmed autoimmune disease.

The Telomere & Biological Aging Analysis

Title: Vitamin D Supplementation and Leucocyte Telomere Length in the VITAL Trial

Journal: The American Journal of Clinical Nutrition (AJCN) PubMed: 40409468

Impact: An ancillary study showing that 2,000 IU of Vitamin D daily significantly buffered telomere shortening over time, effectively preserving the equivalent of three years of biological aging compared to the placebo group.

The Cancer Metastasis Discovery

Title: Vitamin D supplementation and total cancer incidence and mortality: the Vitamin D and OmegA-3 TriaL (VITAL)

Journal: The American Journal of Clinical Nutrition (AJCN)

DOI: 10.1093/ajcn/nqy135 PubMed: 21986389

Impact: This analysis revealed that while total cancer incidence did not drop significantly, Vitamin D supplementation was associated with a 17% reduction in advanced (metastatic or fatal) cancers.

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