{"podcast":{"title":"The Science of Age-less Living","slug":"the-science-of-age-less-living-7235688","podcast_index_feed_id":7235688,"rss_url":"https://media.rss.com/the-science-of-age-less-living/feed.xml","website_url":"https://rss.com/podcasts/the-science-of-age-less-living/","image_url":"https://media.rss.com/the-science-of-age-less-living/20251203_051216_dcfbba3c86faaedb3846ad2813128728.png","author":"Dr. Ethan Hausman-Marquis","episode_count":37,"summary":"Welcome to The Science of Age-Less Living ! Dr. Ethan Hausman-Marquis—logevity researcher, biohacker and founder of The Catalyst Clinic—shares his journey into the fields of aesthetics, regenerative medicine, and longevity science, and offers a look at what the future of aging may hold. From his early studies at UCLA to advanced work in genomics and molecular biology at L’École Normale Supérieure in Paris and a PhD at the Karolinska Institute in Stockholm, Dr. Ethan’s path has been guided by one goal: helping people live longer, healthier, and more vibrant lives. He is the author of Exploring the World of Peptides: From Basics to Breakthroughs and Peptide-Based Cancer Therapies: A New Frontier in Precision Medicine , and has contributed to several peer-reviewed publications on cutting-edge medical research. In this episode, Dr. Ethan reflects on his transition from academic research to clinical innovation at The Catalyst Clinic—with locations in London, New York, Amsterdam, and soon Zürich—and sets the stage for what’s to come in future episodes. Each week, The Science of Age-Less Living explores the molecular and cell biology of longevity—the evolving landscape of regenerative me…","last_synced_at":"2026-06-25T22:18:53.982257+00:00","page_url":"https://stenobird.com/podcast/the-science-of-age-less-living-7235688"},"episode":{"title":"Age-Less Repair: GHK-Cu The Swiss Army Knife of Peptides  | Age-Less Top 20 Peptides","slug":"age-less-repair-ghk-cu-the-swiss-army-knife-of-peptides-age-less-top-20-peptides","published_at":"2026-06-22T15:07:42+00:00","page_url":"https://stenobird.com/podcast/the-science-of-age-less-living-7235688/age-less-repair-ghk-cu-the-swiss-army-knife-of-peptides-age-less-top-20-peptides","show_page_url":"https://stenobird.com/podcast/the-science-of-age-less-living-7235688","url":"https://rss.com/podcasts/the-science-of-age-less-living/2935098","audio_url":"https://content.rss.com/episodes/319089/2935098/the-science-of-age-less-living/2026_06_22_15_07_33_3b12cea6-bde8-4b7f-ac80-7da3aecd129c.mp3","summary":"GHK-Cu — glycine-histidine-lysine complexed with copper — is one of the most structurally simple compounds in this series and one of the most mechanistically interesting. It is a tripeptide: three amino acids, naturally present in human plasma, saliva, and urine, with plasma concentrations that fall from roughly 200 nanograms per millilitre in young adults to near-undetectable levels by the time most people reach 60. That decline, and what it may mean for tissue maintenance and repair capacity across the lifespan, is the central biological question this episode addresses. The compound was first characterised in the early 1970s by Loren Pickart, who identified it in human plasma albumin fractions and noted its capacity to stimulate liver tissue regeneration in vitro. Subsequent decades of research — predominantly preclinical, predominantly in cell culture and animal models — have built a mechanistic picture of unusual breadth. GHK-Cu appears to modulate gene expression at scale: a 2010 analysis by Pickart and colleagues identified over 4,000 human genes regulated by GHK, with a roughly equal split between upregulation and downregulation. The upregulated genes cluster around wound healing, collagen synthesis, antioxidant defence, and nerve regeneration. The downregulated genes include inflammatory mediators, oncogenes associated with aggressive tumour behaviour, and genes involved in tissue degradation. In this episode, Dr. Ethan works through the mechanism in detail — the copper-dependent activation of superoxide dismutase, the upregulation of collagen and glycosaminoglycan synthesis, the suppression of TGF-beta 1-driven fibrosis, the activation of the Nrf2 antioxidant programme, and the VEGF-mediated angiogenic effects that underpin its wound-healing activity. He then…","meta_description":"GHK-Cu — glycine-histidine-lysine complexed with copper — is one of the most structurally simple compounds in this series and one of the most mechanistica…","key_points":[],"chapters":[],"topics":[],"duration_seconds":1120,"processing_state":"not_requested","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/the-science-of-age-less-living-7235688/episodes/age-less-repair-ghk-cu-the-swiss-army-knife-of-peptides-age-less-top-20-peptides/transcription-requests","description":"Idempotently request low-priority transcript generation for this episode."},{"name":"read_markdown","method":"GET","url":"https://stenobird.com/podcast/the-science-of-age-less-living-7235688/age-less-repair-ghk-cu-the-swiss-army-knife-of-peptides-age-less-top-20-peptides.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}