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(单词翻译)
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute.
It's been touted1 for its healthful, anti-inflammatory properties. It's been recommended for helping2 ease the pain of arthritis3, preventing cancer and slowing memory loss. But some recent studies of fish oil show that it may not always act as advertised—and that you can sometimes have too much of a good thing.
First, the latest news. Researchers spent 18 months following almost 300 patients with mild to moderate Alzheimer's. Some took fish oil, others a placebo4. And there was no difference cognitively5 between the two groups. The study is in the current Journal of the American Medical Association.
It's a mixed bag on cancer. A study of more than 35,000 post-menopausal women found that those who took fish oil seemed half as likely to develop breast cancer as those who didn't. That work was in the July issue of Cancer Epidemiology, Biomarkers & Prevention.
But a study in the October 15th issue of Cancer Research found that mice with inflamed6 bowels7 developed colitis and aggressive colon8 cancer when they were given high doses of fish oil.
So, fish oil might in fact have a healthful role in some circumstances. But you don't want to swallow every fish story.
Thanks for the minute. For Scientific American's 60-Second Science, I'm Cynthia Graber.
1 touted | |
v.兜售( tout的过去式和过去分词 );招揽;侦查;探听赛马情报 | |
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2 helping | |
n.食物的一份&adj.帮助人的,辅助的 | |
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3 arthritis | |
n.关节炎 | |
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4 placebo | |
n.安慰剂;宽慰话 | |
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5 cognitively | |
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6 inflamed | |
adj.发炎的,红肿的v.(使)变红,发怒,过热( inflame的过去式和过去分词 ) | |
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7 bowels | |
n.肠,内脏,内部;肠( bowel的名词复数 );内部,最深处 | |
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8 colon | |
n.冒号,结肠,直肠 | |
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