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
It often seems that some possess superhuman eating powers, allowing them to down an entire pizza while remaining rail-thin. Othe
It often seems that some possess superhuman eating powers, allowing them to down an entire pizza while remaining rail-thin. Othe
admin
2020-02-09
25
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.
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://jikaoti.com/ti/Cl0FFFFM
0
大学英语四级
相关试题推荐
A、Enjoyedthewineanddeliciousfoods.B、Listenedtothestoriesoffriends.C、Sataloneandwaitedsomeonetocomeup.D、Talke
Carsandotherroadvehiclesarethesinglemainsourceofharmfulnitrogenoxides.Roadtransportremainsthebiggestsourc
Carsandotherroadvehiclesarethesinglemainsourceofharmfulnitrogenoxides.Roadtransportremainsthebiggestsourc
Carsandotherroadvehiclesarethesinglemainsourceofharmfulnitrogenoxides.Roadtransportremainsthebiggestsourc
Forcenturies,inthecountriesofsouthandSoutheastAsiatheelephanthasbeenanintimatepartoftheculture,economyandr
A、Shelovesneitherofthem.B、ShelovesFrenchcuisinemore.C、Shelovesbothofthem.D、ShelovesChinesecuisinemore.C
A、Theyareeatingfordinner.B、Theyaretalkingabouttheirpromotion.C、Theyarechoosingtheirmenus.D、Theyarecelebrating
YoungpeopleintheUnitedStatesarefallingbehindtheiroverseaspeersinreading,mathandscience,PresidentBarackObamas
A、Parentsareurgedtogetfreesugarapptocheckproducts.B、Therearetoomanyadvertisementsonfreeapps.C、Childrenshould
A、It’smostbeautifulinsummer.B、Ithasmanyhistoricalbuildings.C、Itwasgreatlyexpandedinthe18thcentury.D、It’stheo
随机试题
DearJose,YouhaveaskedmeforsuggestionsonhowtogetalongintheUnitedStates.Itisdifficulttogiveadvice,butI
A.低张性宫缩乏力B.高张性宫缩乏力C.原发性宫缩乏力D.继发性宫缩乏力E.正常子宫收缩乏力临产后宫缩一直短而弱,间歇时间长,产程进展慢是指
上海某大学为加强学术交流,于2007年5月邀请德国一学术代表团讲学,将从武汉口岸运进该学术代表团讲学用的专用设备,其中包括一套探测器。货物进口时,该大学已向海关注册,委托武汉某报关企业向武汉海关办理该专用设备的进口手续。讲学结束后该学校决定留购这套探测器并
下列关于评价审计过程中的重大错报的说法中,不正确的是()。
胡锦涛在中共中央政治局第42次集体学习关于南昌起义和井冈山革命根据地的建立时强调,我们要始终保持共产党人的政治本色,坚决反对形式主义、官僚主义,坚决反对享乐主义、奢侈浪费,坚决反对各种消极腐败现象,真正做到()。
以法律意识的政治属性为标准,法律意识可被分为()。
某些操作系统把一条命令的执行结果输出给下一条命令,作为它的输入,并加以处理,这种机制称为(27)。使命令的执行结果不在屏幕上显示,而引向另一个文件,这种机制称为(28)。使命令所需要的处理信息不从键盘接收,而取自另一文件,这种机制称为(29)。操作系统不从
如下图所示,某园区网中的路由器R1与R2相连,R2与R3相连,R3与R4相连,R4直接与Internet上的路由器R5相连,路由器R1和R2缺省路由的正确配置是()。
有以下程序#includemain(){FILE*pf;char*s1="China",*s2="Beijing";pf=fopen("abc.dat","wb+");fwrite(s2,
TheAmericantraditionhasfoundthisviewofhumanhistoryrepugnantandfalse.【T1】Thistraditionseestheworldasmany,not
最新回复
(
0
)