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
2024-01-24
8
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] According to a doctor, what makes people different in weight?
选项
A、The amount of food they take in.
B、The amount of time they spend on exercise.
C、The genes in their body.
D、The different lifestyles.
答案
C
解析
转载请注明原文地址:https://www.tihaiku.com/zcyy/3389971.html
相关试题推荐
Asavolunteer,JohnApollosislosingweight—theold-fashionedway—byeating
Itoftenseemsthatsomepossesssuperhumaneatingpowers,allowingthemtod
Itoftenseemsthatsomepossesssuperhumaneatingpowers,allowingthemtod
Itoftenseemsthatsomepossesssuperhumaneatingpowers,allowingthemtod
Thesecrettoeatinglessandbeinghappyaboutitmayhavebeencrackedyea
Thesecrettoeatinglessandbeinghappyaboutitmayhavebeencrackedyea
CreatingaHarmoniousFamilyForthispart,youareallowed30minutestowr
Itoftenseemsthatsomepossesssuperhumaneatingpowers,allowingthem
Itoftenseemsthatsomepossesssuperhumaneatingpowers,allowingthem
Itoftenseemsthatsomepossesssuperhumaneatingpowers,allowingthem
随机试题
Tounderstandthemarketingconcept,itisonlynecessarytounderstandthe
Historianscantracethefoundationsofplasticsurgeryasfarbackasabout
可自由支配收入是指( )。A.家庭全部收入 B.家庭全部收入扣除纳税部分
有关卵巢的主要生理功能,下面描述最准确的是A.主要是产生卵子和分泌女性激素 B
为了对组织的一个地区进行成本分析,成立了一个小组,并在分析完成后该小组解散。这是
隧道施工中,掌子面出现大规模塌方的可能前兆主要有()。A.拱顶岩石开裂,裂缝旁
经行感冒风寒证宜用方A.荆穗四物汤 B.荆芩四物汤 C.银翘散 D.桑菊饮
防火卷帘控制器的火灾报警功能、自动控制功能、手动控制功能、故障报警功能、备用电源
通货膨胀是指一般物价水平在一段时间内( )地上涨。A.持续、快速 B.持续、
下列各项中,属于中央银行负债业务的有()。A.贷款 B.再贴现 C.货
最新回复
(
0
)