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Mon March 11, 2013
Mummy Study Shows Heart Disease Could Be A Natural Human Condition
AUDIE CORNISH, HOST:
Ever wonder why mummies always sound like they're suffering from serious indigestion?
(SOUNDBITE OF SCOOBY DOO SEGMENT)
CARTOON CHARACTER #1: Golly, look.
CARTOON CHARACTER #2: That's a mummy and it's moving.
CORNISH: A little "Scooby Doo" for you there. But that mummy sounds like a cry for some Tums, right?
(SOUNDBITE OF A GROWL)
CORNISH: But seriously, some scientists have been studying a group of real mummies and they've discovered that 34 percent of them probably suffered from hardened arteries. Yes, about a third of the mummies apparently suffered from heart disease. The study is published in the science journal The Lancet, and it raises a big question. Does that mean heart disease might simply be part of the aging process, not related to diet after all?
Joining us now is Randall Thompson. He presented the findings at a meeting of the American College of Cardiology in San Francisco. Randall Thompson, welcome to the program.
DR. RANDALL THOMPSON: Thank you. It's very nice to be here.
CORNISH: So, I read in this study that guys did CT scans of 137 mummified bodies from different parts of the world. Walk us through this study and essentially what you found.
THOMPSON: Well, we found that heart disease is a mysterious killer that's been stalking mankind for over 4,000 years. We found the disease to be present in four of these cultures across a very wide time span of human history, across a very wide geographic spans, and in cultures that had very different diets, very different lifestyles and very different climates.
And so, we concluded that this disease, atherosclerosis - the disease that causes heart attacks and strokes - appears to be related to human aging and is not particularly characteristic of the any diet or lifestyle.
CORNISH: And you mentioned four groups. Where did the different mummies come from?
THOMPSON: So the four groups were ancient Egyptians, ancient Peruvians, ancestral Pueblans from the North American Southwest, and ancient Alutian Islanders. Actually, the Alutian Islanders were not ancient. They were from the 1800s by the lives a traditional lifestyle, traditional for them, and that they were hunter-gatherers who hunted from kayaks and so forth.
CORNISH: So you do the CT scans and what exactly is it that you find that leads you to believe that, you know, heart disease is his condition has been with us?
THOMPSON: Well, the tool we used was a CT scanner. And CT scans demonstrated the calcium that are in arteries. And the calcium is part of the disease process that causes heart attacks and stroke. So it's a clue. It's residue that's been left behind and, as we've learned, it's there for a long time. In fact, it's there for hundreds, even thousands of years.
CORNISH: So what's there? Is it - are arteries still there...
CORNISH: ...in a mummified body? Or are you looking at just the calcium?
THOMPSON: What is amazing is sometimes the arteries were there. So these bodies are 3,000 years old or older, and we can still make out parts of the body - the aorta. We could see the calcium inside the aorta, inside the wall of the vessel. Now, some other times, the soft tissue, the arteries, had dissolved away and what was left was the calcium.
We'd see the calcium along the course of an artery. In those cases, we coded it as probable atherosclerosis, probable disease. And we categorized the mummies as having definite or probable, based on whether we could see the artery or not.
CORNISH: Now, should I feel any less guilty then about Big Mac consumption?
CORNISH: Or are there other factors here that could contribute to this?
THOMPSON: Right, so it may be that we have less control over getting heart disease than we like to think we do but that doesn't mean you shouldn't control the risk factors you should control. If you've got high blood pressure, you should have it treated. If you've got high cholesterol, you should control your cholesterol. But there're certainly some diets that are healthier than others and certainly some lifestyles that are healthier than others, and we all ought to take care of ourselves.
CORNISH: Well, Randall Thompson, thank you so much for speaking with us.
THOMPSON: Thank you. It's a pleasure to be here.
CORNISH: That's Randall Thompson, cardiologist at St. Luke's Mid-America Heart Institute. He was the lead researcher on the study that found signs of heart disease in mummified bodies. Transcript provided by NPR, Copyright NPR.