SSS 2009-03-02
时间：2019-01-08 作者：英语课 分类：Scientific American(三)月
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute.
It’s like the molecular 1 version of the Joker and the Riddler 3 teaming up against Batman. Scientists at Yale University have discovered that amyloid beta, a protein involved in Alzheimer’s disease, can damage brain cells by binding 4 to prion proteins, which are themselves infamous 5 because, in their abnormal form, they cause things like mad cow disease.
Amyloid beta is best known as the protein that forms the giant plaques 6 that riddle 2 the brains of people with Alzheimer’s. Those plaques contain billions of copies of amyloid beta all stuck together in one gloppy mess. But the protein also exists in a more soluble 7 form, either in single units or in small groups of 50 or 100. These smaller clusters don’t cause the same large-scale mayhem as plaques, but they do damage neurons, impairing 8 their ability to learn. And the Yale researchers wanted to find out how.
They discovered that amyloid beta binds 9 to the prion proteins normally found on neurons. What’s more, the prions ramp 10 up amyloid beta’s neurotoxic effects. Take away the prions and amyloid-beta clusters are harmless, findings published in the journal Nature. So drugs that prevent this amyloid–prion coupling could be a potent 11 weapon against Alzheimer’s.
Thanks for the minute for Scientific American's 60-Second Science. I'm Karen Hopkin.
- The research will provide direct insight into molecular mechanisms.这项研究将使人能够直接地了解分子的机理。
- For the pressure to become zero, molecular bombardment must cease.当压强趋近于零时，分子的碰撞就停止了。
- The riddle couldn't be solved by the child.这个谜语孩子猜不出来。
- Her disappearance is a complete riddle.她的失踪完全是一个谜。
- There was Batman Forever, in which he inherited the role of The Riddler. 其中包括《永远的蝙蝠侠》，该片中他继承了在《猜谜者》中的角色风格。
- For the so-called World's Greatest Detective, the real foe is Edward Nigma, aka The Riddler. 对于世界上最伟大的侦探，真正的敌人是爱德华~尼格玛，也就是谜语人。
- The contract was not signed and has no binding force. 合同没有签署因而没有约束力。
- Both sides have agreed that the arbitration will be binding. 双方都赞同仲裁具有约束力。
- He was infamous for his anti-feminist attitudes.他因反对女性主义而声名狼藉。
- I was shocked by her infamous behaviour.她的无耻行径令我震惊。
- Primary plaques were detectable in 16 to 20 hours. 在16到20小时内可查出原发溶斑。
- The gondoliers wore green and white livery and silver plaques on their chests. 船夫们穿着白绿两色的制服，胸前别着银质徽章。
- These tablets are soluble in water.这些药片可在水中溶解。
- Camphor is soluble in alcohol.樟脑在酒精中可以溶化。
- Carbon monoxide is definitely capable of impairing cardiovascular function. 一氧化碳确实能损害心血管机能。 来自辞典例句
- Could it be effected without impairing his reputation as well as his fortune? 他能否不损害他的声誉和财富而办到这一点呢？ 来自辞典例句
- Frost binds the soil. 霜使土壤凝结。 来自《简明英汉词典》
- Stones and cement binds strongly. 石头和水泥凝固得很牢。 来自《简明英汉词典》
- That driver drove the car up the ramp.那司机将车开上了斜坡。
- The factory don't have that capacity to ramp up.这家工厂没有能力加速生产。