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
2023-06-24
27
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 was the effect of the alteration in the past?
选项
A、It could help people to absorb more ingredients.
B、It could help people to get through the starvation.
C、It could help people to avoid fast food.
D、It could help people to enjoy more delicious snacks.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2779263.html
相关试题推荐
TopicOnAcademicCheatingForthispart,youareallowed30minutestowr
Theoceanisheatingup.That’stheconclusionofanewstudythatfindstha
Theoceanisheatingup.That’stheconclusionofanewstudythatfindstha
Theoceanisheatingup.That’stheconclusionofanewstudythatfindstha
Theoceanisheatingup.That’stheconclusionofanewstudythatfindstha
Junkfoodiseverywhere.We’reeatingwaytoomuchofit.Mostofusknowwh
Junkfoodiseverywhere.We’reeatingwaytoomuchofit.Mostofusknowwh
Junkfoodiseverywhere.We’reeatingwaytoomuchofit.Mostofusknowwh
Junkfoodiseverywhere.We’reeatingwaytoomuchofit.Mostofusknowwh
[originaltext]Tosomeit’sadreamjob—eatingdeliciousmealsforfreeand
随机试题
Itisuniversallyacknowledgedthatheis______amusicianthanhistutor.A、much
[originaltext]ThenumberofgirlsmarriedinAfricaisexpectedtodoublei
21-三体综合征患儿最主要的特征是A.四肢短小 B.腹部膨隆 C.智力低下
( ),《证券投资基金管理公司内部控制指导意见》正式出台。A.1999年12
中毒性菌痢最严重的临床表现是A.高热 B.起病急骤 C.腹痛、腹泻 D.循
在医院药事管理委员会中担任主任委员的一般是A:药剂科主任 B:医院行政管理专家
()是人类最早呈现出来的一种幼儿教育形态。A.采用讲故事形式对儿童进行教育 B
下列属于在“应交税费——应交增值税”明细账借方核算的专栏有( )。A.转出多交
尾矿库的安全度主要根据尾矿库防洪能力和尾矿坝坝体稳定性确定。某评价机构对尾矿库进
根据《必须招标的工程项目规定》(中华人民共和国国家发展改革委员会令第16号),从
最新回复
(
0
)