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
35
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://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
ThemultipleEuropeanviewpointsareafunctionofthefollowingEXCEPT______.[
[originaltext]M:Excuseme.MayIhavesomeinformationaboutthereceptionpar
李某、男、48岁,中上腹疼多年,一周来疼痛加重,剧烈疼痛2小时。餐后4小时。腹平
在持续整理形态中,()大多发生在市场极度活跃、股价运动近乎直线上升或下降的情
基金的会计核算对象包括( )。 Ⅰ资产类 Ⅱ所有者权益类 Ⅲ资产负债共同
建设单位应当将大型的人员密集场所和其他特殊建筑工程的消防设计文件报送公安机关消防
根据《民事诉讼法》及相关规定,关于管辖下列说法正确的是: A.同一诉讼的几个
上感和流感在一年四季均可发病,尤以冬、春季较为多见。主要症状:全身可有畏寒、乏力
在企业综合绩效评价指标中,下列属于评价企业资产质量状况基本指标的是()。A.应
背景 某钢厂将一条年产100万宽厚板轧制生产线的建设项目,通过招标确定本工程中
最新回复
(
0
)