首页
登录
职称英语
The first step to defeating an enemy is to pin down his exact identity and h
The first step to defeating an enemy is to pin down his exact identity and h
游客
2023-08-20
14
管理
问题
The first step to defeating an enemy is to pin down his exact identity and how he operates. Hypertension—chronic, abnormally raised blood pressure—causes heart attacks, strokes and a multitude of other【C1】______conditions. Around a third of Americans and Britons suffer from it. It is thus a worthy enemy and【C2】______its cause is a priority. Until now, this has mostly seemed to lie in the kidneys. But Hidefumi Waki and Julian Paton of Bristol University think they have gathered some valuable new【C3】______—by studying the brain.
In a previous experiment Dr Waki and Dr Paton had found that rodents(啮齿动物)with high blood pressure expressed some genes differently in an area of the brain, called the solitary nucleus(核子), which sets the body’s normal blood pressure level. One of these genes was called "junctional adhesion(粘连)molecule-1 " or JAM-1 for short. It is a molecule normally found in the walls of blood【C4】______that attracts clotting and immune cells—in other words, it causes inflammation. So the pair decided to look at JAM-1 in further depth.
They found that in rats with high blood pressure JAM-1 levels were raised not only in the brain but also the kidney, spleen, lungs and skeletal muscle. To find out whether this was the cause or effect of high blood pressure, they then【C5】______the JAM-1 gene into the solitary nucleus of normal rats. After two weeks, these rats suffered from higher blood pressure than rats that had not received the gene.
【C6】______, experts thought that high blood pressure was caused by the kidneys. The idea was that the kidneys failed to【C7】______the blood pressure. This then caused the lungs to make a hormone(荷尔蒙)that increases blood pressure, leading to a chain of events that raised pressure throughout the blood-vessel network. All blood-pressure-lowering drugs work by seeking to put this right. Yet blaming the kidneys cannot be the full【C8】______of what is going on, because only half the sufferers respond to blood-pressure-lowering drugs. Although these findings are【C9】______, they have far-reaching implications.
Variations in the JAM-1 gene and its expression may explain why high blood pressure tends to run in families, although it is also caused by a poor diet. The finding also shows that the brain could increase the activity of the sympathetic nerves, the part of the nervous system involved in stress response. Ultimately, the finding could hasten the development of drugs that would attack hypertension at its source, stopping its deadly【C10】______in their tracks.
A)sturdy I)explanation
B)vessels J)consequences
C)previously K)nasty
D)perseverance L)reproaching
E)nailing M)transferred
F)preliminary N)intelligence
G)sense O)accordingly
H)reconcile [br] 【C1】
选项
答案
K
解析
空格前的heart attacks,strokes等都是危险的疾病,是危险的情况,备选形容词中的nasty“严重的,恶劣的”可以修饰conditions,意为“危险的情况,严重的情况”,故K)为答案。
转载请注明原文地址:https://www.tihaiku.com/zcyy/2943147.html
相关试题推荐
Thefirststeptodefeatinganenemyistopindownhisexactidentityandh
Thefirststeptodefeatinganenemyistopindownhisexactidentityandh
Thefirststeptodefeatinganenemyistopindownhisexactidentityandh
Thefirststeptodefeatinganenemyistopindownhisexactidentityandh
Thefirststeptodefeatinganenemyistopindownhisexactidentityandh
Thefirststeptodefeatinganenemyistopindownhisexactidentityandh
Thefirststeptodefeatinganenemyistopindownhisexactidentityandh
Thefirststeptodefeatinganenemyistopindownhisexactidentityandh
Thefirststeptodefeatinganenemyistopindownhisexactidentityandh
Thefirststeptodefeatinganenemyistopindownhisexactidentityandh
随机试题
Afriendofminereturnedtohishouseafteraholiday,onlytofindit______.A
______________(和猴子的大脑相比,人脑的特殊性在于)thecomplexsystemwhichenablesachildtoco
JasonBraddockknewhehadtopayforhiscollegeeducation,sohewenttow
A.空腹血糖 B.糖化血红蛋白 C.尿糖 D.鉴别l型和2型糖尿病最好的指
康复团队工作模式的特点有()A.康复小组由多学科的专业人员组成 B.发挥
A.输卵管淋巴 B.髂内淋巴 C.阴道上段淋巴 D.会阴淋巴 E.阴蒂淋
女,26岁。G1P,怀孕38周,血压160/110mmHg尿蛋白(+++),待产
案例一: 一般资料:求助者,女性,32岁,公司职员。 案例介绍:求助者由于婆
通用塑料不包括( )。A.聚乙烯 B.聚甲醛 C.聚氯乙烯 D.聚丙烯
女性,31岁,怀孕7个月,心悸、手抖14天,检查发现、升高,拟诊为甲亢。现患者最
最新回复
(
0
)