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This is Scientific American 60-Second Science. I'm Karen Hopkin. This'll just take a minute.
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It's both painful and insulting to rub salt in a wound.
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But a new study shows that salty skin can actually ward off infections, at least in mice fed a high-sodium diet.
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That's according to a study in the journal Cell Metabolism.
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We tend to think of dietary salt as a health threat.
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And it is.
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Too much sodium has been linked to high blood pressure and an increased risk for heart attack and stroke.
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But we also crave salty snacks and store the accumulated sodium in our bodies, particularly in the skin.
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A clue to explaining this paradox came when researchers noticed that mice that were attacked by a cage mate wound up with an unusually large amount of sodium at the site of the bite.
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They then found high sodium levels in people at the locations of bacterial skin infections.
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So the researchers fed mice a high-sodium diet.
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And found that the dietary salt boosted the activity of immune cells in the animals' skin, which gave them a leg up when it came to healing their wounds.
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The findings could lead to treatments that would help us assault infections without having to resort to pretzels, potato chips or pickles.
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Thanks for the minute, for Scientific American 60-Second Science. I'm Karen Hopkin.
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1 / 14
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显示原文 =This is Scientific American 60-Second Science. I'm Karen Hopkin. This'll just take a minute.
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2 / 14
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显示原文 =It's both painful and insulting to rub salt in a wound.
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3 / 14
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显示原文 =But a new study shows that salty skin can actually ward off infections, at least in mice fed a high-sodium diet.
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4 / 14
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显示原文 =That's according to a study in the journal Cell Metabolism.
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5 / 14
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显示原文 =We tend to think of dietary salt as a health threat.
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6 / 14
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显示原文 =And it is.
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显示原文 =Too much sodium has been linked to high blood pressure and an increased risk for heart attack and stroke.
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8 / 14
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显示原文 =But we also crave salty snacks and store the accumulated sodium in our bodies, particularly in the skin.
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9 / 14
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显示原文 =A clue to explaining this paradox came when researchers noticed that mice that were attacked by a cage mate wound up with an unusually large amount of sodium at the site of the bite.
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10 / 14
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显示原文 =They then found high sodium levels in people at the locations of bacterial skin infections.
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11 / 14
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显示原文 =So the researchers fed mice a high-sodium diet.
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显示原文 =And found that the dietary salt boosted the activity of immune cells in the animals' skin, which gave them a leg up when it came to healing their wounds.
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13 / 14
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显示原文 =The findings could lead to treatments that would help us assault infections without having to resort to pretzels, potato chips or pickles.
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14 / 14
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显示原文 =Thanks for the minute, for Scientific American 60-Second Science. I'm Karen Hopkin.
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- 单句循环：关
- 单句循环：×3
- 单句循环：×5
- 单句循环：∞