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英文科普：胖人减肥后反弹是由于荷尔蒙变化

时间：2011-10-31 06:51:02

（单词翻译:单击）

 Worldwide, there are more than 1.5 billion overweight adults, including 400 million who are obese1. In Australia, it is estimated more than 50 per cent of women and 60 per cent of men are either overweight or obese. Although restriction2 of diet often results in initial weight loss, more than 80 per cent of obese dieters fail to maintain their reduced weight. Obese people may regain3 weight after dieting due to hormonal4 changes, a new study has shown.

The study involved 50 overweight or obese adults, with a BMI of between 27 and 40, and an average weight of 95kg, who enrolled5 in a 10-week weight loss program using a very low energy diet. Levels of appetite-regulating hormones7 were measured at baseline, at the end of the program and one year after initial weight loss.

Results showed that following initial weight loss of about 13 kgs, the levels of hormones that influence hunger changed in a way which would be expected to increase appetite. These changes were sustained for at least one year. Participants regained8 around 5kgs during the one-year period of study.

Professor Joseph Proietto from the University of Melbourne and Austin Health said the study revealed the important roles that hormones play in regulating body weight, making dietary and behavioral change less likely to work in the long-term.

"Our study has provided clues as to why obese people who have lost weight often relapse（复发） . The relapse has a strong physiological9 basis and is not simply the result of the voluntary resumption of old habits," he said.

Dr Proietto said although health promotion10 campaigns recommended obese people adopt lifestyle changes such as to be more active, they were unlikely to lead to reversal（逆转，撤销） of the obesity11 epidemic12.

"Ultimately it would be more effective to focus public health efforts in preventing children from becoming obese."

"The study also suggests that hunger following weight loss needs to be addressed. This may be possible with long-term pharmacotherapy（药物疗法） or hormone6 manipulation but these options need to be investigated," he said.

The study was done in collaboration13 with La Trobe University. It was published in the New England Journal of Medicine.

英语科普


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1 obese uvIya     
adj.过度肥胖的，肥大的
参考例句：
  • The old man is really obese,it can't be healthy.那位老人确实过于肥胖了，不能算是健康。
  • Being obese and lazy is dangerous to health.又胖又懒危害健康。
2 restriction jW8x0     
n.限制，约束
参考例句：
  • The park is open to the public without restriction.这个公园对公众开放，没有任何限制。
  • The 30 mph speed restriction applies in all built-up areas.每小时限速30英里适用于所有建筑物聚集区。
3 regain YkYzPd     
vt.重新获得，收复，恢复
参考例句：
  • He is making a bid to regain his World No.1 ranking.他正为重登世界排名第一位而努力。
  • The government is desperate to regain credibility with the public.政府急于重新获取公众的信任。
4 hormonal Fcpx6     
adj.激素的
参考例句：
  • Some viral diseases are more severe during pregnancy, probably tecause of hormonal changes. 有些病毒病在妊娠期间比较严重，可能是由于激素变化引起的。
  • She underwent surgical intervention and a subsequent short period of hormonal therapy. 他接受外科手术及随后短暂荷尔蒙治疗。
5 enrolled ff7af27948b380bff5d583359796d3c8     
adj.入学登记了的v.[亦作enrol]( enroll的过去式和过去分词 )；登记，招收，使入伍（或入会、入学等），参加，成为成员；记入名册；卷起，包起
参考例句：
  • They have been studying hard from the moment they enrolled. 从入学时起，他们就一直努力学习。 来自《简明英汉词典》
  • He enrolled with an employment agency for a teaching position. 他在职业介绍所登了记以谋求一个教师的职位。 来自《简明英汉词典》
6 hormone uyky3     
n.荷尔蒙，激素，内分泌
参考例句：
  • Hormone implants are used as growth boosters.激素植入物被用作生长辅助剂。
  • This hormone interacts closely with other hormones in the body.这种荷尔蒙与体內其他荷尔蒙紧密地相互作用。
7 hormones hormones     
n. 荷尔蒙，激素 名词hormone的复数形式
参考例句：
  • This hormone interacts closely with other hormones in the body. 这种荷尔蒙与体內其他荷尔蒙紧密地相互作用。
  • The adrenals produce a large per cent of a man's sex hormones. 肾上腺分泌人体的大部分性激素。
8 regained 51ada49e953b830c8bd8fddd6bcd03aa     
复得( regain的过去式和过去分词 )； 赢回； 重回； 复至某地
参考例句：
  • The majority of the people in the world have regained their liberty. 世界上大多数人已重获自由。
  • She hesitated briefly but quickly regained her poise. 她犹豫片刻，但很快恢复了镇静。
9 physiological aAvyK     
adj.生理学的，生理学上的
参考例句：
  • He bought a physiological book.他买了一本生理学方面的书。
  • Every individual has a physiological requirement for each nutrient.每个人对每种营养成分都有一种生理上的需要。
10 promotion eRLxn     
n.提升，晋级；促销，宣传
参考例句：
  • The teacher conferred with the principal about Dick's promotion.教师与校长商谈了迪克的升级问题。
  • The clerk was given a promotion and an increase in salary.那个职员升了级，加了薪。
11 obesity Dv1ya     
n.肥胖，肥大
参考例句：
  • One effect of overeating may be obesity.吃得过多能导致肥胖。
  • Sugar and fat can more easily lead to obesity than some other foods.糖和脂肪比其他食物更容易导致肥胖。
12 epidemic 5iTzz     
n.流行病；盛行；adj.流行性的，流传极广的
参考例句：
  • That kind of epidemic disease has long been stamped out.那种传染病早已绝迹。
  • The authorities tried to localise the epidemic.当局试图把流行病限制在局部范围。
13 collaboration bW7yD     
n.合作，协作；勾结
参考例句：
  • The two companies are working in close collaboration each other.这两家公司密切合作。
  • He was shot for collaboration with the enemy.他因通敌而被枪毙了。