Baby, Were You Born This Way? Epigenetics & The Nature vs Nurture Debate

Unbiased Science

@unbiasedscipod

Education, Health & Fitness, Science

4.5 • 622 Ratings

🗓️ 18 September 2024

⏱️ 46 minutes

🔗️ Recording | iTunes | RSS

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Summary

In this episode, Dr. Jess Steier and Dr. Sarah Scheinman explore the fascinating field of epigenetics, which examines how external factors influence gene expression and impact health outcomes. They discuss the interplay between nature and nurture, explaining how epigenetics involves information layered on top of DNA that affects gene operation. The scientists cover key mechanisms like DNA methylation and histone modifications, and how factors such as nutrition and stress can impact these processes. They highlight landmark studies, including research on agouti mice and the Dutch Famine Birth Cohort Study, which demonstrate the long-term effects of environmental factors on gene expression and disease risk. The conversation also touches on the implications of epigenetics for mental health and the potential for future advancements in personalized medicine. Throughout the episode, Dr. Steier and Dr. Scheinman emphasize the complex relationship between genetics and environment in shaping human development and health. All our sources from this episode are available at: https://www.unbiasedscipod.com/episodes/ (00:00) Introduction (02:27) Understanding Genetics and the Human Genome (06:23) Epigenetics: Layered Information on Top of DNA (10:19) Explaining Methylation and Histones (16:20) External and Internal Regulation of Epigenetic Modifications (18:43) Transgenerational Epigenetic Inheritance (21:21) Landmark Studies in Epigenetics: Agouti Mice (23:35) Environmental Influence on Epigenetic Markers in Twins (26:07) Prenatal Exposure to Famine and DNA Methylation (28:36) The Effects of Space Travel on Epigenetic Markers (30:52) Epigenetics and Mental Health (36:25) Final Thoughts: Future Advancements in Manipulating Epigenetic Changes Interested in advertising with us? Please reach out to [email protected], with “Unbiased Science” in the subject line. PLEASE NOTE: The discussion and information provided in this podcast are for general educational, scientific, and informational purposes only and are not intended as, and should not be treated as, medical or other professional advice for any particular individual or individuals. Every person and medical issue is different, and diagnosis and treatment requires consideration of specific facts often unique to the individual. As such, the information contained in this podcast should not be used as a substitute for consultation with and/or treatment by a doctor or other medical professional. If you are experiencing any medical issue or have any medical concern, you should consult with a doctor or other medical professional. Further, due to the inherent limitations of a podcast such as this as well as ongoing scientific developments, we do not guarantee the completeness or accuracy of the information or analysis provided in this podcast, although, of course we always endeavor to provide comprehensive information and analysis. In no event may Unbiased Science or any of the participants in this podcast be held liable to the listener or anyone else for any decision allegedly made or action allegedly taken or not taken allegedly in reliance on the discussion or information in this podcast or for any damages allegedly resulting from such reliance. The information provided herein do not represent the views of our employers. Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:00.0	You're listening to an Airwave Media podcast.
0:04.8	Rated T for Teen.
0:06.0	Each year, thousands of adults lose their shred.
0:09.7	It's an epidemic simply known as shred loss,
0:12.2	but it doesn't have to be this way.
0:13.8	Because rekindling your shred is as easy as playing
0:15.9	the new Tony Hawk's Pro Skater 3 and 4.
0:18.3	With new parks,
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0:26.6	Get the new Tony Hawk's Pro Skater 3 and 4 and show the world that the shred's not dead.
0:30.6	Get Tony Hawk's Pro Skater 3 and 4 available now. Now.
0:55.7	Welcome to Unbiased Science, where we bring scientific method to the madness.
1:01.8	We are your hosts, Dr. Jess Steyer, and Dr. Sarah Scheinman.
1:13.8	And today, we are going to tackle a topic that, honestly, I feel like I'm going to be doing a lot of question asking and listening to Dr.
1:14.5	Scheinman.
1:17.0	The topic is epigenetics.
1:24.1	It's a really, you know, cool branch of science that I feel like, you know, people hear the term, but don't really understand what it means.
1:26.2	It came up briefly in our episode
1:29.0	on Alzheimer's. I really, I can't remember the context. I don't know if you do, Sarah. Maybe you do.
1:34.9	Well, you were just talking to me about what my research was in particular in my interests and
1:39.6	what my postdoctoral research right now is focused on the epigenetics of Alzheimer's disease.
	...

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