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
医学
A、The diabetics can be cured without taking synthetic insulin any longer. B、The findings provide insight into how insulin works.
A、The diabetics can be cured without taking synthetic insulin any longer. B、The findings provide insight into how insulin works.
admin
2018-02-26
20
问题
A team of Australian chemistry students have strengthened the chemical bonds of insulin to make it stable even at warm temperatures—a breakthrough that could simplify diabetes management. The finding could shed light on how insulin works and eventually lead to insulin pills, rather than injections or pumps.
Insulin needs to be kept cold because it is made of weak chemical bonds that degrade at temperatures above 40 degrees Fahrenheit, making it inactive. But using a series of chemical reactions, the research team, comprised of students from Monash University in Australia, replaced the unstable bonds with stronger, carbon-based ones.
The stronger bonds stabilize the insulin’s two protein chains without interfering with its natural activity, according to a story about the findings at SciGuru. The so-called "dicarba" insulins were stable at room temperature for several years, SciGuru says.
Even more promising is that the findings provide insight into how insulin works.
People with Type 1 and Type 2 diabetes do not produce enough insulin, whether it’s the result of an auto-immune disorder that stops producing it entirely (Type 1) or a condition brought on by other factors like obesity, in which the body can no longer use it properly (Type 2). Insulin is the mechanism that delivers glucose from the blood to the cells, so diabetics must take a synthetic form of the hormone.
When insulin unlocks cells to allow sugar to be taken up from the blood, the hormone’s shape changes — but no one is sure what the shape looks like. If researchers knew that shape, they could design smaller, less-complex versions of insulin that don’t use proteins.
Then it could be administered in pill form rather than directly into the bloodstream. Understanding the molecule’s chemical bonds is a step toward unlocking that shape, the researchers say.
21. What is the main idea of the talk?
22. Why does insulin need to be kept cold, according to the talk?
23. What makes the research more promising?
24. What is true about the new type of insulin?
25. What is unknown to the scientists, according to the talk?
选项
A、The diabetics can be cured without taking synthetic insulin any longer.
B、The findings provide insight into how insulin works.
C、Insulin can be more stable than it is now.
D、Insulin can be produced naturally.
答案
B
解析
此题为细节信息题。题目问什么使得该项研究前景更好。根据原文信息可以得知:研究结果可以有助于更好地了解胰岛素是如何起效的,因而答案为B。
转载请注明原文地址:https://jikaoti.com/ti/TBxDFFFM
本试题收录于:
医学博士外语题库考研分类
0
医学博士外语
考研
相关试题推荐
男,70岁,70%烧伤第2日,收缩压80mmHg,呼吸34次/分,每小时平均尿量18ml,有黑色大便,血胆红素36μmol/L,血小板40×109/L,目前最恰当的诊断是
女性,22岁,检查时发现镜下血尿,下列哪种说法不正确
A.心电图检查B.24小时动态心电图C.导管调搏检查D.心内电生理检查诊断预激综合征最有价值的检查方法是
女性,62岁,突发胸痛2小时入院。心电图V1-5ST段抬高。弓背向上,即抽血查CK-MB轻微升高,达不到心肌梗死的诊断标准。请示上级医生,认为急性心肌梗死的可能性最大,有关心肌酶值的测定,以下哪项是错的
Justbeforedawnwereceivedacallthatanunresponsiveinfantwasbeingbroughtbyemergencymedicalservicestoourhospital.
High-speedlivinghasbecomeafactoflife,andthefranticpaceistakingitstoll,accordingtosciencewriterJamesGleick.
Ifyouarecaughtinadownpour,itisbettertorunforshelterthanwalk,researchersintheUSadvise.Thismaysoundobvious
InthispartthereisapassageinChinese.Readitcarefullyandthenwriteasummaryof200wordsinEnglishontheANSWERSHE
A、Suspicious.B、Anxious.C、Hesitant.D、Factual.D由I’msorrytohavetotellyouallthis,butmyfeelingisthatit’salwaysgoo
Appliedresearch,undertakentosolvespecificpracticalproblems,hasanimmediateattractivenessbecausetheresultscanbese
随机试题
肺癌好发部位_______。
由长链脂肪酸合成的三脂酰甘油吸收入血液的方式是
施工总承包管理模式的基本出发点是通过施工总承包管理单位的管理与组织协调,达到()的目的。
仲裁庭由( )名仲裁员组成时,应设首席仲裁员。
考虑两种完全负相关的风险证券A和B。A的预期收益率为10%,标准差为16%。B的预期收益率为8%,标准差为12%。股票A和股票B在最小方差组合中的权重分别为()。
下列有关刑罚种类的说法正确的是()。
[*]
假设关系R1和R2如下图所示:若进行R1R2运算,则结果集分别为(1)元关系,共有(2)个元组。(1)
设一棵树的度为3,其中度为3、2、1的节点个数分别为4、1、3。则该棵树中的叶子节点数为()
CellPhoneLetsYourSecretOutYourcellphoneholdssecretsaboutyou.Besidesthenamesand______【51】thatyou’veprogram
最新回复
(
0
)