meta_pixel
Tapesearch Logo
Log in
Science Magazine Podcast

Genes that turn off after death, and debunking the sugar conspiracy

Science Magazine Podcast

Science Podcast

News, News Commentary, Science

4.3842 Ratings

🗓️ 15 February 2018

⏱️ 14 minutes

🧾️ Download transcript

Summary

Some of our genes come alive after we die. David Grimm—online news editor for Science—talks with Sarah Crespi about which genes are active after death and what we can learn about time of death by looking at patterns of postmortem gene expression. Sarah also interviews David Merritt Johns of Columbia University about the so-called sugar conspiracy. Historical evidence suggests, despite recent media reports, it is unlikely that “big sugar” influenced U.S. nutrition policy and led to the low-fat diet fad of the ’80s and ’90s. Listen to previous podcasts. [Image: Lauri Andler (Phantom); Music: Jeffrey Cook] Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

Click on a timestamp to play from that location

0:00.0

Morgan State University, a Baltimore, Maryland Carnegie R2 doctoral research institution,

0:05.0

offers more than 100 academic programs and awards degrees at the Baccliorate, Masters, and Doctoral Levels,

0:12.0

is furthering their mission of growing the future leading the world.

0:16.0

Morgan continues to address the needs and challenges of the modern urban environment.

0:20.0

With a four-year quadrupling of research, more than a dozen new doctoral programs,

0:25.7

and eight new National Centers of Excellence,

0:28.5

Morgan is positioned to achieve Carnegie R-1 designation in the next five years.

0:33.7

To learn more about Morgan and their ascension to R1, visit morgan.edu slash research.

0:46.2

Welcome to the science podcast for February 16, 2018. I'm Sarah Cresby. In this week's show, David Grimm talks about genes that turn on after death and what we can learn from their activity.

0:59.2

And David Johns talks about the so-called sugar conspiracy and how it doesn't quite hold up to a close examination of the history of nutrition policy in the U.S.

1:10.4

Now we have David Grimm, editor for our daily news site.

1:13.8

He's here to talk about what happens to us after we die.

1:17.0

Welcome, Dave.

1:17.6

Hey, sir.

1:18.2

Okay, so finally we know what happens after we die.

1:21.6

Well, we know what happens to our genes.

1:23.2

Right, okay.

1:23.9

So this is about what genes do when we're no longer alive. The researchers in this

1:28.7

case were looking at gene regulation in different tissues, living tissue, dead tissue, preserved

1:33.5

tissue. Why were they doing that in the first place? Well, you know, they're part of this study.

1:37.9

This is called this, it's called a genotype tissue expression pilot, which is a large consortium

1:42.8

of geneticists and milk and biologists. They've been measuring gene activity in tissues consortium of geneticists and molecular biologists.

...

Please login to see the full transcript.

Disclaimer: The podcast and artwork embedded on this page are from Science Podcast, and are the property of its owner and not affiliated with or endorsed by Tapesearch.

Generated transcripts are the property of Science Podcast and are distributed freely under the Fair Use doctrine. Transcripts generated by Tapesearch are not guaranteed to be accurate.

Copyright © Tapesearch 2026.