美国科学60秒 SSS 2013-02-08(在线收听

   A lethal dose cyanide of can take your life in minutes. It kills by blocking your cells used of oxygen, suffocating the body and brain. There are FDA approved antidote, but they are served via intravenous injection. Just imagine paramedics chucking up by IV for 10,000 convulsing and comatose commuters, as might have been necessary in 1995 cyanide attack in Tokyo had worked. Now researchers have been come up with one maybe a better antidote, called self-antigen TEA. It's injected into muscular, faster and easier than IV. The antidote works by supplying more of the chemical pricker so our bodies naturally use to de-toxic cyanide. After all, we already break down trace amount of cyanide from apple seeds, spinach and cigarets smoke. The shot just ends up that process. It's detailed in the journal of Medicinal Chemistry. Of cause, antidotes only work if you know you have been poisoned. Not the case for seven people murdered by the talon poisoner in 1982. But if terrorists did release cyanide gases in a subway or another public place, this new antidote might give us a shot and saving more life.

  原文地址:http://www.tingroom.com/lesson/sasss/2013/02/219708.html