本帖最后由 Jeffrey-邓杰铭 于 2012-12-4 23:00 编辑

米国科学家又逆天了

#13t

米国科学促进会发明直接将氧气注射到血液内的新技术：以直径2-4μm的脂质体微粒（图中黄色颗粒）携带氧气传递给红细胞，能使血氧在数秒内恢复至正常水平，帮助不能呼吸的患者度过最危急的几分钟。以后就看见直接注射”氧气“啦，那个该死的大气球滚出吧~

本人的渣翻译大意：

我们已经开发了一种含有自组装可注射的泡沫，包封封装的核心是纯氧气，其静脉注射的悬浮液是一种以脂质为基础的微粒。制造原悬浮液每公升包含50和90毫升左右的氧气。粒子大小是不固定的，颗粒直径平均2到4微米。当与人体血液体混合后，70％体积的氧气微粒将在4秒内混合完成。当微粒被注射到低氧血症的兔静脉中，动脉血氧饱和度在几秒钟内增加至接近正常的水平，在这之后，停止输注后氧张力减少。该颗粒也被注入过接受完整气管闭塞15分钟的兔子中。氧微粒大大减少了在这些兔子的低氧血症和心脏骤停程度，器官损伤的发生率也相对降低。与对照组相比，氧气和其它气体的能力来管理直接的血液内成分，可能代表这是应对低氧血症患者的一种新技术。也能用于短期的救援，以选择性地增强氧输送到处于危险的器官，或作为新的诊断技术。此外，这也能够快速的将大量氧气注入，可以最大限度地减少氧中毒的问题。

PS:氧中毒的相关链接 http://baike.baidu.com/view/1459364.htm

原文：

We have developed an injectable foam suspension containing self-assembling, lipid-based microparticles encapsulating a core of pure oxygen gas for intravenous injection. Prototype suspensions were manufactured to contain between 50 and 90 ml of oxygen gas per deciliter of suspension. Particle size was polydisperse, with a mean particle diameter between 2 and 4 μm. When mixed with human blood ex vivo, oxygen transfer from 70 volume % microparticles was complete within 4 s. When the microparticles were infused by intravenous injection into hypoxemic rabbits, arterial saturations increased within seconds to near-normal levels; this was followed by a decrease in oxygen tensions after stopping the infusions. The particles were also infused into rabbits undergoing 15 min of complete tracheal occlusion. Oxygen microparticles significantly decreased the degree of hypoxemia in these rabbits, and the incidence of cardiac arrest and organ injury was reduced compared to controls. The ability to administer oxygen and other gases directly to the bloodstream may represent a technique for short-term rescue of profoundly hypoxemic patients, to selectively augment oxygen delivery to at-risk organs, or for novel diagnostic techniques. Furthermore, the ability to titrate gas infusions rapidly may minimize oxygen-related toxicity.

• Copyright © 2012, American Association for the Advancement of Science

http://stm.sciencemag.org/content/4/140/140ra88

哈哈哈

上面的撞车梗可以的

不会导致血脂升高咩

不做评价#7069!

厉害

世界上有种东西叫（氧气中毒）#24x

楼上+1!038~

没点进来之前我第一反应是不会出现气体栓塞然后跪了么。。。

好恐怖的感觉

~47!后面的对话好残忍

用钝器击打导致解剖对象可能没死的汝感觉更残忍

反正脊髓捣碎之后就没有痛觉了

啊……你好残忍啊

感觉捣碎脊髓更赞

唔……其实我比较喜欢用钝物击打头部……

毕竟这样的杀生方式很难得

#19t

其实看到标题吾想起了解剖时打的空气针

以后就不用呼吸了..临出门的时候打一针..一天平安无事啊..

噗。。。。。