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] 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/2779261.html
相关试题推荐
Theoceanisheatingup.That’stheconclusionofanewstudythatfindstha
Theoceanisheatingup.That’stheconclusionofanewstudythatfindstha
Theoceanisheatingup.That’stheconclusionofanewstudythatfindstha
Theoceanisheatingup.That’stheconclusionofanewstudythatfindstha
Theoceanisheatingup.That’stheconclusionofanewstudythatfindstha
Theoceanisheatingup.That’stheconclusionofanewstudythatfindstha
Theoceanisheatingup.That’stheconclusionofanewstudythatfindstha
[originaltext]Tosomeit’sadreamjob—eatingdeliciousmealsforfreeand
[originaltext]Tosomeit’sadreamjob—eatingdeliciousmealsforfreeand
[originaltext]Tosomeit’sadreamjob—eatingdeliciousmealsforfreeand
随机试题
[originaltext]Jetlag,causedbytravelingbetweentimezones,isbecoming
Forme,scientificknowledgeisdividedintomathematicalsciences,natural
Therapidgrowthofartfairsischangingthewaygalleriesoperate.Bef
[originaltext]ThecampaigngroupAmnestyInternationalsaysithasevidence
既是科技伦理原则的解释机构,也是实际执行伦理规范的功能性组织是( )。A.科技
在软件配置管理中,版本控制的目的是按照一定的规则保存配置项的()。A.重
A.丹七片 B.冠心苏合丸 C.消栓通络胶囊 D.逐瘀通脉胶囊 E.元胡
王飞与老家江西某县的劳务派遣公司签订合同后,劳务派遣公司根据王飞提供的信息资料做
常合并脓胸、脓气胸的肺炎是() A.金黄色葡萄球菌肺炎 B.腺病毒肺炎 C
按照《建设工程安全生产管理条例》的规定,下列关于特种作业人员持证上岗制度的说法中
最新回复
(
0
)