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
2024-01-26
38
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/3395531.html
相关试题推荐
Asavolunteer,JohnApollosislosingweight—theold-fashionedway—byeating
Asavolunteer,JohnApollosislosingweight—theold-fashionedway—byeating
Asavolunteer,JohnApollosislosingweight—theold-fashionedway—byeating
Asavolunteer,JohnApollosislosingweight—theold-fashionedway—byeating
Itoftenseemsthatsomepossesssuperhumaneatingpowers,allowingthemtod
Itoftenseemsthatsomepossesssuperhumaneatingpowers,allowingthemtod
Thequalityofpatiencegoesalongwaytowardyourgoalofcreatingamore
Thequalityofpatiencegoesalongwaytowardyourgoalofcreatingamore
Thequalityofpatiencegoesalongwaytowardyourgoalofcreatingamore
Thequalityofpatiencegoesalongwaytowardyourgoalofcreatingamore
随机试题
Weenjoyfinefoodfromthefirsttastetothelast.Similarly,goodwriting
Whenaninventionismade,theinventorhasthreepossiblecoursesofaction
Theselow-budgetanimatedfilmsarethemainsourceof______ofthisindependent
GeorgeHerbertMeadsaidthathumansaretalkedintohumanity.Hemeantthat
[audioFiles]audio_eufm_j07_001(20082)[/audioFiles]A、Itmaynotbewarmenough.
治疗急性心肌梗死阳气虚衰,寒凝心络证,应首选A.四逆汤合桃红四物汤 B.生脉
产后会阴护理,下列错误的是A:每日消毒液擦洗会阴部两次 B:会阴水肿可用95%
据2006年4月6日《新闻晚报》报道,3月份人民币汇率双向波动加剧,上周人民币汇
下面哪些条件难以形成逆温()。 A多云的夜晚 B晴朗少云的夏季夜晚
准时交货是顾客最关心的问题之一,为了监制准时交货率,宜采用()。[2008年真
最新回复
(
0
)