싱클레어 박사는 스페인, 칠레, 아르헨티나, 호주 등의 악조건에서 자란 포도가 보다 조건이 좋은 지역에서 자란 포도보다 레스베라트롤을 많이 함유하고 있다고 발표했다.
This is the VOA Special English Health Report.
Resveratrol is a compound found naturally in foods including grape skins, wine and peanuts. And scientists say it may hold the secret to being fat and happy -- for a mouse, at least. A new study in Nature magazine says resveratrol helped mice live as long and as well on a high-fat diet as mice that ate healthier foods.
Researchers in the United States studied three groups of one-year-old mice. That is middle aged for a mouse.
The researchers fed one group a healthy diet of foods low in calories and fat. Another group ate high-fat, high-calorie foods.
The third group also ate a high-fat diet -- but with resveratrol added to the food. At first these mice were as slow and unhealthy as the ones eating fatty foods without resveratrol.
But in time, the researchers say, they began to show signs of good health comparable to the mice on the healthy diet. They also lived as long as those mice. And they lived at least fifteen percent longer than the mice on the high-fat diet without resveratrol.
The mice that ate high-fat foods alone showed signs of diabetes and heart disease. In humans, these two diseases are often linked to aging. But being overweight can make them happen sooner.
David Sinclair of Harvard Medical School in Boston, Massachusetts, led the study. He studies ways to control aging, and the National Institute on Aging helped support the study. But he also says there is a serious need for something to help overweight people who are unable to lose weight.
Several biotechnology companies are hoping to create a treatment that will act as the resveratrol did in the mice. Professor Sinclair says researchers are a long way from developing such a thing. But a company he helped start, Sirtris Pharmaceuticals, is testing the safety of a resveratrol treatment in people with diabetes.
Resveratrol has been shown to extend the lives of other organisms including yeast, roundworms and fruit flies.
The mice in this new study received huge amounts of it -- many, many times more than a person would get from a glass of red wine. Red wine contains more resveratrol than white wine.
Many health food stores sell resveratrol. But experts say no one knows if it will work the same in humans as it did in the mice. And they say no one knows if there are long-term dangers in taking large amounts.
And that's the VOA Special English Health Report, written by Caty Weaver. For more health news, go to voaspecialenglish.com. I'm Steve Ember.
포도에 들어있는 레스베라트롤이...
듣기
레스베라트롤이 좋다고 하네요. 네이버 백과 사전도 읽어보시고 미국의 소리 방송 영어도 들어 보세요^^
레스베라트롤(resveratrol)은 식물에서 발견되는 항산화물질인 폴리페놀(polyphenol) 계열에 속하는 물질로 포도, 오디, 땅콩 등에 들어있으며, 특히 적포도주에 다량 함유되어 있다.
레스베라트롤은 그동안 항암, 항산화 작용을 하는 것으로 알려졌다. 또한 심장 동맥 손상을 줄여주고 심장발작과 뇌졸중을 일으키는 위험한 현상인 혈액응고를 방지하는데 효과적인 것으로 밝혀졌다.
2003년 8월 미국 하버드 대학 의과대학의 데이비드 싱클레어 박사는 영국의 과학전문지 에 발표한 연구보고서에서 '레스베라트롤'이 단세포 생물인 효모의 수명을 80% 연장시키는 것으로 확인됐다고 말했다.
싱클레어 박사는 스페인, 칠레, 아르헨티나, 호주 등의 악조건에서 자란 포도가 보다 조건이 좋은 지역에서 자란 포도보다 레스베라트롤을 많이 함유하고 있다고 발표했다.
This is the VOA Special English Health Report.
Researchers in the United States studied three groups of one-year-old mice. That is middle aged for a mouse.
The researchers fed one group a healthy diet of foods low in calories and fat. Another group ate high-fat, high-calorie foods.
The third group also ate a high-fat diet -- but with resveratrol added to the food. At first these mice were as slow and unhealthy as the ones eating fatty foods without resveratrol.
But in time, the researchers say, they began to show signs of good health comparable to the mice on the healthy diet. They also lived as long as those mice. And they lived at least fifteen percent longer than the mice on the high-fat diet without resveratrol.
The mice that ate high-fat foods alone showed signs of diabetes and heart disease. In humans, these two diseases are often linked to aging. But being overweight can make them happen sooner.
David Sinclair of Harvard Medical School in Boston, Massachusetts, led the study. He studies ways to control aging, and the National Institute on Aging helped support the study. But he also says there is a serious need for something to help overweight people who are unable to lose weight.
Several biotechnology companies are hoping to create a treatment that will act as the resveratrol did in the mice. Professor Sinclair says researchers are a long way from developing such a thing. But a company he helped start, Sirtris Pharmaceuticals, is testing the safety of a resveratrol treatment in people with diabetes.
Resveratrol has been shown to extend the lives of other organisms including yeast, roundworms and fruit flies.
The mice in this new study received huge amounts of it -- many, many times more than a person would get from a glass of red wine. Red wine contains more resveratrol than white wine.
Many health food stores sell resveratrol. But experts say no one knows if it will work the same in humans as it did in the mice. And they say no one knows if there are long-term dangers in taking large amounts.
And that's the VOA Special English Health Report, written by Caty Weaver. For more health news, go to voaspecialenglish.com. I'm Steve Ember.