首页
登录
职称英语
It often seems that some possess superhuman eating powers, allowing them to d
It often seems that some possess superhuman eating powers, allowing them to d
游客
2024-01-27
32
管理
问题
It often seems that some possess superhuman eating powers, allowing them to down an entire pizza while remaining rail-thin. Others only need to think of a slice and gain five pounds. Now one doctor says there’s evidence that genetics could be behind some of these differences. Regardless of how much you eat, your weight may be out of your hands.
Vann Bennett, a biochemist at Duke University and his team led a new investigation and discovered why this happens. They engineered mice to have several common modifications of the gene found in humans. They observed that mice who had mutations of ankyrin-B took more glucose (葡萄糖) into their fat cells, which in turn made more fat. Typically, the cell membrane (膜) acts as a barrier to prevent glucose from entering these cells: the alteration kept the gate open.
The change may serve a useful purpose. "Probably this is not always a bad thing," Bennett told Newsweek. "It could help people survive famines in the past. But today we have so much food that it probably is a bad thing." Our modern diets of fast food drive-thru windows and aisles of packaged snacks make the alteration work against us.
Dieters have long been told to watch their calories and exercise more, but this new finding suggests that a blanket approach doesn’t work for everyone. And the study illustrates a common problem for people: increased weight gain as a function of age. Our metabolism naturally slows with age, making it harder to maintain the weight of our 30-year-old selves when we’re 50. Now add an unruly ankyrin-B gene, and it may seem impossible to stay slim.
The mice in the study gained more weight when on high-fat diets. Bennett believes this is because once the fat cells received the glucose and start making more fat, they become sensitive to other fat. Despite being studied in mice, the researchers believe further research on this gene, and possibly others, could potentially create a field of customized diets and health plans based on genetics. Bennett envisions such assessments being performed at birth one day. For now, frustrated dieters can take comfort with one saying: It’s not you, it’s your genes. [br] What is the prospect of further research?
选项
A、It may help people to maintain the perfect weight.
B、It may change many new-born babies’ gene arrangement.
C、It may present human beings with a series of health plans.
D、It may provide more comfort for the frustrated dieters.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3399620.html
相关试题推荐
Theoceanisheatingup.That’stheconclusionofanewstudythatfindstha
Theoceanisheatingup.That’stheconclusionofanewstudythatfindstha
Theoceanisheatingup.That’stheconclusionofanewstudythatfindstha
Theoceanisheatingup.That’stheconclusionofanewstudythatfindstha
Theoceanisheatingup.That’stheconclusionofanewstudythatfindstha
Junkfoodiseverywhere.We’reeatingwaytoomuchofit.Mostofusknowwh
Junkfoodiseverywhere.We’reeatingwaytoomuchofit.Mostofusknowwh
[originaltext]Tosomeit’sadreamjob—eatingdeliciousmealsforfreeand
[originaltext]Tosomeit’sadreamjob—eatingdeliciousmealsforfreeand
[originaltext]Solarwaterheatingisusedworldwide.Thedeviceweareabou
随机试题
A.enhanceB.equivalentC.idealD.probablyE.muchF.shortageG.cer
KeepingitintheFamilyForexpatparents,passingontheirnativelanguagesca
Thewaveofjobcutssweepingthroughtheutilitysectorgatheredpaceyester
Concernsafewyearsagothatstudentswouldbeforcedtousestimulantsin
混凝土出现蜂窝,原因是混凝土搅拌时间不够,未拌合均匀,和易性差,振捣不密实。
关于自动控制的水幕系统联动控制设计的说法,下列正确的是()。A.用于防火卷帘保护
决定基准收益率大小的因素主要是()和项目风险。A:盈利能力B:资金成本C:项
2,4,3,(),13/4,27/8,53/16 A.1B.7/2C
A.LD B.ED C.LD/ED D.LD/ED E.LD/ED半数有
有目的行动是意志行动的A.前提 B.核心 C.基础 D.方向 E.目的
最新回复
(
0
)