首页
登录
职称英语
Alzheimer’s disease has no cure. There are, however, five drugs—known and ap
Alzheimer’s disease has no cure. There are, however, five drugs—known and ap
游客
2023-11-03
8
管理
问题
Alzheimer’s disease has no cure. There are, however, five drugs—known and approved—that can slow down the development of its symptoms. The earlier such drugs are administered, the better. Unfortunately, the disease is usually first noticed when people complain to their doctors of memory problems. That is normally too late for the drugs to do much good. A simple and reliable test for Alzheimer’s that can be administered to everybody over the age of about 65, before memory-loss sets in, would therefore be useful.
Theo Luider, of the Erasmus University Medical Centre in Rotterdam, and his colleagues think they have found one—but it works only in women. They made their discovery, just reported in the Journal of Proteome Research, by tapping into a long-term, continuing study that started in 1995 with 1,077 non-demented and otherwise healthy people aged between 60 and 90. At the beginning of the project, and subsequently during the periods 1997-99 and 2002-04, participants were brought in for a battery of neurological(神经学的)and cognitive investigations, physical examinations, brain imaging and blood tests.
During the first ten years of the study, 43 of the volunteers developed Alzheimer’s disease. When Dr. Luider compared blood samples from these people with samples from 43 of their fellow volunteers, matched for sex and age, who had remained Alzheimer’s-free, he found something startling. Levels of a substance called pregnancy zone protein had been unusually high, even before their symptoms appeared, in some of those who went on to develop Alzheimer’s disease.
Those "some" , it turned out, were all women. On average, levels of pregnancy zone protein in those women who went on to develop Alzheimer’s were almost 60% higher than those of women who did not. In men, levels of the protein were the same for both.
The reason for this curious result seems to be that the brain plaques(斑块)associated with Alzheimer’s disease are themselves turning out pregnancy zone protein. Certainly, when Dr. Luider applied a chemical stain specific to that protein to the plaques of dead Alzheimer’s patients he found the protein present in them.
Confusingly, though, it was there in the plaques of both sexes. Presumably, female cells(and therefore the plaques of female brains)make more of it than male cells do. But that remains to be proved. Whatever the reason, however, this result means that women, at least, may soon be able to tell whether and when they are at risk of Alzheimer’s—and thus do something about it before they start losing their minds. [br] How does the author feel about Dr. Luider’s study?
选项
A、Confused.
B、Optimistic.
C、Indifferent.
D、Meaningless.
答案
B
解析
态度题。根据本文最后一句可知,但不管是什么原因,这个发现至少意味着女性可以尽早得知其是否会患上阿尔茨海默病,以及什么时候可能会患上该病——因此,医生可以在她们记忆力衰退前采取一些措施。可见,作者对这项研究持乐观的态度,故正确答案为[B]“乐观的”。
转载请注明原文地址:https://www.tihaiku.com/zcyy/3155375.html
相关试题推荐
Whatcausedthedisease?[br][originaltext]TheWorldHealthOrganization
Whatcausedthedisease?[originaltext]TheWorldHealthOrganizationsaysI
Sugarlessyoghurtcouldhelpbeatbadbreath,toothdecayandgumdisease,s
Sugarlessyoghurtcouldhelpbeatbadbreath,toothdecayandgumdisease,s
Sugarlessyoghurtcouldhelpbeatbadbreath,toothdecayandgumdisease,s
Sugarlessyoghurtcouldhelpbeatbadbreath,toothdecayandgumdisease,s
Sugarlessyoghurtcouldhelpbeatbadbreath,toothdecayandgumdisease,s
Sugarlessyoghurtcouldhelpbeatbadbreath,toothdecayandgumdisease,s
Sugarlessyoghurtcouldhelpbeatbadbreath,toothdecayandgumdisease,s
Sugarlessyoghurtcouldhelpbeatbadbreath,toothdecayandgumdisease,s
随机试题
Choiceblindness:Youdon’tknowwhatyouwantWehaveallhe
WeShouldBalanceOurLove1.现在有很多人关心下一代超过关心上一代2.这一现象带来什么问题3.你认为应该怎么做?
[originaltext]Theeconomiccostsofnoisetosocietyareseveral.Airports
[originaltext]MalawiisoneofthepoorestnationsinAfricawithmillions
关于中国近代民营出版机构的说法,错误的有( )。A.清末,近代民营出版机构云集
下列关于中国文化核心精神和特征的描述,正确的有A.中国文化的核心精神是商周时期产
男婴1岁1个月。出生体重2850g,现体重7kg(正常1岁男婴体重10.4kg,
某上市公司2007年4月1日将一栋写字楼出租给乙公司使用,租赁期从当日开始,20
电气设备检修需要解锁操作时,应经(____)现场批准。值班负责人$;$分管生产的
①氢气具有清洁环保的特点。全球主要经济体都将发展氢能作为应对气候变化、实现能源低
最新回复
(
0
)