Mechanism of antiarrhythmic effect of the antimalarial artemisinin .

抗疟药青蒿素抗心律失常的作用机制。

Although new drugs are under development , especially through the medicines for malaria venture , a public-private partnership , early signals of artemisinin resistance have already been detected .

尽管通过“疟疾药物开发项目”这一公私合作机制以及其他机制正在开发新药，但人们已经发现了青篙素耐药的早期征兆。

There was no urgent need to lower the use of artemisinin , as its use was already rare in most pilot sites .

对于降低青蒿素的使用并没有迫切的需求，因为在大部分试点地区其使用状况已经非常稀少。

They then modified the extract and purified it into a drug known as artemisinin that has since saved millions of lives .

随后他们对这种提取物做了修正进而提炼出了叫做青蒿素的药物，这种药物挽救了成千上百万的生命。

At present artemisinin is expensive and in short supply because its only source is sweet wormwood , a chinese medicinal plant .

目前，由于青蒿素的唯一来源是一种叫艾蒿的中草药，因此其价格昂贵且供不应求。