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SSS 2008-12-09

时间:2010-05-15 07:18来源:互联网 提供网友:木渐浅。   字体: [ ]
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Chinese medicine has been getting some props1 lately. A couple of recent studies have demonstrated the medical potential of traditional treatments.

Part of the challenge of AIDS is that immune cells lose their ability to divide and thus their disease fighting power. Partly because the telomeres—a sort of protective cap on the ends of chromosomes—become progressively shorter. Enter the root Astragalus. It’s used frequently in Chinese herbal remedies. Researchers focused on a chemical called TAT2, which was identified in Astragalus. They tested it on cells and blood from HIV infected individuals. The compound slowed the shortening of telomeres and generally improved the ability of cells to fight HIV. [The Journal of Immunology]

Another study focused on psoriasis. There’s no cure for that chronic2 skin disease. But in China and Taiwan, people with psoriasis frequently apply a dark blue plant-based powder called indigo3 naturalis. In a randomized study [in the Archives of Dermatology], indigo powder significantly reduced skin scaling, redness and hardness. The Taiwanese scientists say the next step is to determine indigo’s pharmacology and perhaps extract the specific chemical compounds that could bring psoriasis sufferers some relief.

 

Thanks for the minute for Scientific American's 60-Second Science. I'm Cynthia Graber.

 


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1 props 50fe03ab7bf37089a7e88da9b31ffb3b     
小道具; 支柱( prop的名词复数 ); 支持者; 道具; (橄榄球中的)支柱前锋
参考例句:
  • Rescuers used props to stop the roof of the tunnel collapsing. 救援人员用支柱防止隧道顶塌陷。
  • The government props up the prices of farm products to support farmers' incomes. 政府保持农产品价格不变以保障农民们的收入。
2 chronic BO9zl     
adj.(疾病)长期未愈的,慢性的;极坏的
参考例句:
  • Famine differs from chronic malnutrition.饥荒不同于慢性营养不良。
  • Chronic poisoning may lead to death from inanition.慢性中毒也可能由虚弱导致死亡。
3 indigo 78FxQ     
n.靛青,靛蓝
参考例句:
  • The sky was indigo blue,and a great many stars were shining.天空一片深蓝,闪烁着点点繁星。
  • He slipped into an indigo tank.他滑落到蓝靛桶中。
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