首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Alzheimer’s disease has no cure. There are, however, five drugs—known and approved—that can slow down the development of its sym
Alzheimer’s disease has no cure. There are, however, five drugs—known and approved—that can slow down the development of its sym
admin
2015-09-26
61
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.
The word "non-demented" in Paragraph 2 probably means______.
选项
A、physically disabled
B、unconscious
C、mentally clear
D、low-spirited
答案
C
解析
语义题。根据第二段第二句…with 1,077 non-demented and otherwise healthy people agedbetween 60 and 90可知,调查研究的对象是1077名60岁到90岁之间的non—demented和healthy的人,其中的and otherwise表明这两个词在意思上是并列、递进的关系;再根据第三段前两句可知,在研究的前十年里,志愿者中有43人患上了阿尔茨海默病,后面又将这些患阿尔茨海默病的病人与未患病者进行比较。综上所述,可以推出[C]“神志清醒的”为正确答案。[A]、[B]和[D]均不符合文意,故排除。
转载请注明原文地址:https://kaotiyun.com/show/PSXK777K
0
专业英语四级
相关试题推荐
Childrenofpoorhealtharevery_______tocoldsinwinterandshouldbetakencareofparticularly.
Smoking,whichmaybeapleasureforsomepeople,isaserioussourceofdiscomfortfortheirfellows.【C1】______,medicalautho
Inatelephonesurveyofmorethan2,000adults,21%saidtheybelievedthesunrevolvedaroundtheearth.An【C1】______7%did
WhichofthefollowingisNOTmentionedasadifferencebetweentheone-bedroomandtwo-bedroomapartments?
BIRD-Xofferspestbirdcontrolproductsto______,controlandgetridofbirds.
Freemedicaltreatmentinthiscountrycoverssicknessofmindaswellas______sicknesses.
YousufKarsh,theCanadianportraitartistwhophotographedmanyofthemostinfluentialfiguresofthe20thcentury,diedina
AntonioSanzmightaswellhavewonthelottery.In1965,whenthesmall,curly-hairedSpaniardwas10,anAmericanprofessoras
Recentlysomebanksextendtheirbusinesstouniversitycampusandoffercreditcardstostudents.Alotofpeopleworrythatcr
Pleasedispose______thoseoldnewspaperswhileyouarecleaninguptheroom.(1994年考试真题)
随机试题
阅读下面语段,回答问题。惊蛰一过,春寒加剧。先是料料峭峭,继而雨季开始,时而淋淋漓漓,时而淅淅沥沥,天潮潮地湿湿,即使在梦里,也似乎把伞撑着。而就凭一把伞,躲过一阵潇潇的冷雨,也躲不过整个雨季。连思想也都是潮润润的。每天回家,曲折穿过金门街到厦门
患儿,10岁,患胫骨中上段慢性骨髓炎,一般情况好,体温不高,局部有流脓窦道,X线片有4cm长整段死骨,周围有不连续包壳。当前的主要治疗是
对于葡萄胎处理,下列不恰当的是哪些项
Ms.Richards,thestoremanager,______offeredarefundtothedissatisfiedcustomerbecauseshecouldseethattheproductwas
学校有目的、有计划、系统地对学生德育的基本途径是()。
为了暂时记住朋友的电话号码以便拨号,最适宜的记忆策略是()
“脱贫”“终点”“起点”,请你用这三个关键词组织一个观点,并加以阐述。
十一届三中全会之所以成为党的历史上具有深远意义的转折点,最根本的一点是
1
Hisofficeis_____tothePresident’s;itusuallytakeshimaboutthreeminutestogetthere.
最新回复
(
0
)