原文已被隐藏，你可用 快捷键 - 或点击 显示原文 按钮来查看原文
第1段
1 .This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute?
该句暂无译文！
2 .Day and night existed long before the first primitive cells came into being.
该句暂无译文！
3 .And that light/dark cycle left its mark on nearly every living thing.
该句暂无译文！
4 .Microbes, plants, insects, mammals - we all experience circadian rhythms, due to molecular clocks in our cells.
该句暂无译文！
5 .But that internal timer affects more than just bedtime.
该句暂无译文！
6 .The body's cells may actually divide by the clock too - in fruit flies, at least.
该句暂无译文！
7 .Researchers gave fruit flies a form of inflammatory bowel disease.
该句暂无译文！
8 .In response, the flies' intestinal stem cells got busy repairing the gut,
该句暂无译文！
9 .most of them dividing in sync around dawn.
该句暂无译文！
10 .But when researchers blocked the action of two clock genes in the intestine, the flies couldn't patch up the damage.
该句暂无译文！
11 .Instead of a coordinated repair, the cells stalled in various stages of division,
该句暂无译文！
12 .indicating that the internal clock plays a role in healing, too.
该句暂无译文！
13 .Those results appear in the journal Cell Reports.
该句暂无译文！
14 .The researchers say the circadian clock might inform healing in us too, since it's such an ancient trait.
该句暂无译文！
15 .If so, they say doctors might want to time surgeries or chemotherapy for when the body is primed to heal, helping patients clock a faster recovery.
该句暂无译文！
16 .Thanks for the minute, for Scientific American's 60-Second Science. I'm Christopher Intagliata.
该句暂无译文！