●首页 加入收藏 网站地图 热点专题 网站搜索 [RSS订阅] [WAP访问]  
语言选择:
英语联盟 | www.enun.cn
英语学习 | 英语阅读 | 英语写作 | 英语听力 | 英语语法 | 综合口语 | 考试大全 | 英语四六 | 英语课堂 | 广播英语 | 行业英语 | 出国留学
品牌英语 | 实用英语 | 英文歌曲 | 影视英语 | 幽默笑话 | 英语游戏 | 儿童英语 | 英语翻译 | 英语讲演 | 求职简历 | 奥运英语 | 英文祝福
背景:#EDF0F5 #FAFBE6 #FFF2E2 #FDE6E0 #F3FFE1 #DAFAF3 #EAEAEF 默认  
阅读内容

英语科普文选:糖--它会催人衰老

[日期:2006-07-18]   [字体: ]

  Sugar-It Could Age You

  吃糖一向被视为肥胖者的大忌,除此以外,一般读者可能还知道吃糖与蛀牙、与某些心血管疾病的关系。可你是否想到过吃糖与人的衰老也有关系呢?本文则报道了这方面的最新研究成果,读后令人大长见识。

 
  Rats that eat high levels of a natural sugar known as fructose seem to age faster than other rats--and the same could be true for people who eat too much sweet junk food, Israeli researchers said Monday.

  以色列的研究人员星期一说,大量摄取一种叫做果糖的天然糖的老鼠,似乎比其他老鼠衰老的更快。对甜食吃得太多的人来说,情况也可能会是如此。

  Fructose, found naturally in honey and fruit, is used widely in foods ranging from soft drinks to yogurt. But while its sweet taste is popular, the sugar could cause wrinkles and heal the problems, the researchers said. Dr. Moshe Werman and Boaz Levi of the Technion-Israel Institute of Technology fed large amounts of fructose to laboratory rats. Writing in the Journal of Nutrition, they said the fructose-fed rats showed changes n the collagen of their skin and bones.

  自然存在于蜂蜜和水果中的果糖,被广泛用于从饮料到酸奶的各种食品中。研究人员说,尽管它的甜味很受欢迎,这种糖却能使皮肤起皱纹并影响身体健康。以色列科学技术研究所的摩西- 沃曼和波阿兹-利位博士喂给实验鼠大量果糖。他们在《营养学杂志》上发表文章说,那些吃了果糖的老鼠的皮肤和骨质中的胶原蛋白发生了变化。

  Collagen, a fibrous protein found in connective tissue, bone and cartilage, basically holds the body together. The loss of collagen is what causes sagging and deep wrinkles in older people.

  胶原蛋白是存在于结缔组织、骨质和软骨中的纤维蛋白质,它的基本作用是将人体各组织结合在一起。胶原蛋白的丧失是导致老年人皮肤松弛和深度皱纹的原因。

  The process affected, Werman's team said, is known as "cross linking". "Too much cross-linking reduces elasticity and makes the skin stiff and rigid, and these are the conditions that encourage wrinkled skin," Werman said in a statement. He said the same could be true of people, although this has not been shown. "Americans are eating more and more processed foods such as carbonated drinks, baked goods, canned fruits, jams and dairy products that contain fructose," Werman said. Other studies have shown that high fructose intake can affect how the body handles glucose and increases insulin resistance---- which can both be important measures of the tendency toward diabetes.

  沃曼领导的研究小组把胶原蛋白的丧失引起的生理变化称作"交叉相联"。沃曼在一次报告中说:"太多的'交叉相联'就会使皮肤降低弹性,发生硬化,这是导致皮肤起皱纹的原因。"他说,人也可能是如此,尽管还没有证据证明这一点。他又说:"美国人摄取的加工食品越来越多,例如碳酸饮料、烘烤食品、罐装水果、果酱和乳制品,而这些食品都含有果糖。"其他的一些研究已经表明,大量摄取果糖会影响人体对葡萄糖的代谢和增强对胰岛素的抵抗力,而这两者是判断患糖尿病可能性的重要指标。

  The rats Werman worked with were fed much more than the average adult person might eat in a day, which is standard in such experiments. The rats were fed 12.5 grams of fructose per kg (2.2 pounds) of weight every day for a year. To compare, a person weighing 154 pounds (70kg) who drinks a quart (liter) of cola consumes about 60 grams of fructose, or 0.8 grams per kg of body weight.

  沃曼喂养的老鼠摄取的果糖比普通成人每天可能摄取的果糖多的多,这在此类实验中是符合标准的。在一年的时间里,这些老鼠每天按每千克(2.2磅)体重12.5克的标准摄取果糖。与此相比,一个体重154磅(70千克)的人,喝一夸脱(升)的可乐,大约摄取了60克的果糖,或者说每千克体重摄取0.8克的果糖。

   免责声明:本站信息仅供参考,版权和著作权归原作者所有! 如果您(作者)发现侵犯您的权益,请与我们联系:QQ-50662607,本站将立即删除!
 
阅读:40

推荐 】 【 打印
相关新闻      
本文评论       全部评论
发表评论

点评: 字数
姓名:
内容查询

热门专题
闂傚倸鍊风粈渚€宕ョ€n€綁骞掗弬鍨亰婵°倧绲介崰姘跺极鐎n喗鐓忛煫鍥ь儏閳ь剚娲熼幃娆愮節閸愵亞顔曢梺鐟邦嚟娴兼繈顢旈崶銉ゆ睏闁诲函缍嗛崜娑氬婵傚憡鐓欓柟顖嗗嫬娅ら柣搴㈢啲閹凤拷
闂傚倸鍊风粈渚€宕ョ€n€綁骞掗弬鍨亰婵°倧绲介崰姘跺极鐎n喗鐓忛煫鍥风稻缁舵岸鏌i幒鎴含闁绘搩鍋婂畷鍫曞Ω閿旇瀚绘繝鐢靛仜閹冲酣鏁冮妶澶嬬畳婵犵數濮撮敃銈夊窗濮樿泛纾块幖杈剧悼绾惧吋淇婇妶鍕妽閻忓繋鍗抽弻銊モ槈濞嗗繐顫掗梺杞扮劍閹瑰洭寮幘缁樻櫢闁跨噦鎷�
濠电姷鏁搁崑鐐哄垂閸洖绠归柍鍝勬噹閸屻劑鏌i幇闈涘⒒婵炲牅绮欓弻娑㈠Ψ椤旂厧顫梺鎼炲€曢崐濠氬焵椤掆偓閸樻粓宕戦幘缁樼厓鐟滄粓宕滃┑瀣劵闁绘垼濮ら埛鎴︽煕韫囨挸鎮戞い顐n殘缁辨帡顢氶埀顒傜不閺嶎厹鈧礁顫濈捄渚綂闂侀潧鐗嗗Λ妤€鈻撳畝鍕拺闁告稑锕ゆ慨锕傛煕濡鍔ら崡閬嶆煥閻曞倹瀚�
濠电姴鐥夐弶搴撳亾閺囥垹纾归悷娆忓娴犳岸姊绘笟鈧埀顒傚仜閼活垱鏅堕鈧弻娑㈡偄妞嬪函绱為梺閫炲苯澧柤鐟板⒔婢规洟顢橀姀鐘殿唵闂佺粯岣跨划顖炲疾閹间焦鐓ラ柣鏇炲€圭€氾拷
闂傚倸鍊烽懗鍫曞储瑜庣粩鐔哥節閸愵亶娲搁梺缁樺姇閹碱偊鎮″鈧弻鈥愁吋鎼粹€崇闂佹悶鍊曢鍡涘Φ閸曨喚鐤€闁圭偓鍓氭禒瀛樼箾鐎涙ḿ鐜婚柟鍑ゆ嫹
濠电姷鏁告繛鈧繛浣冲洤纾归柛顐f礀绾惧潡鎮楅棃娑欏暈鐎规洝灏欓埀顒€绠嶉崕鍗炍涘Δ鍜佹晪闂侇剙绉甸悡銉╂煟閺囩偛鈧湱鈧熬鎷�
 图片新闻
 阅读 儿童阅读 英语故事 童话 诗歌
闂佺粯绻傜粔鎾€﹂敓锟�·闁荤噥鍘鹃幊鎾伙綖鐎n€盯鏁撻敓锟� J
Harry Potter 1-7闂佺ǹ楠忛幏锟�
闂侀潧妫楅敃锕傚春瀹ュ棛鈻旈柟瀛樺笧椤愮偓绻濋弴銊ヤ簼闁绘牞鍩栫缓浠嬪炊瑜滈弳鏃堟偣娓氬﹥瀚�
闂侀潧妫楅敃銊╁Χ鐠恒劎妫柟绋垮閿熴儵鏌熺€涙◤鑲╄姳閵娾晛违閻庯絺鏅為崢顒勬煠娴兼瑦瀚�
闂傚倸瀚崺鏍蓟婢舵劕妞介煫鍥ㄦ煟閳ь剙鍊搁々濂稿醇閵忕姴瀛i梺缁橆殔濞层劑鎮惧┑瀣偍闁跨噦鎷�
缂傚倸鍟〃鍛存儊閹存績鏋庣憸宀€绮畝鍕珘闁告瑦锕㈠顕€鏌涘▎娆愬 闂侀棿绱幏锟�
闂佽壈椴搁弻銊╁箖鎼淬劌鐐婇柣锝呯焾濞尖晛鈽夐弮鎾剁暤闁哄棝浜堕弫宥咁潩椤撶姷鈻嶉梺绯曟櫔閹凤拷
闂佸憡绻傞悧鍡涘春閸曨偀鏋栭柕蹇嬪灩椤ワ拷7闂侀潧妫楅敃銈夊箹闁秴绀嗛柍鍝勫€搁惃锟�
The cat and the do
缂備焦顨忛崗娑氳姳閳哄懎纭€鐎瑰嫭婢橀悞铏圭磽娴h缍戞繛鐓庣埣閹啴宕熼灏栧亾閹间焦鍤冮柨鐕傛嫹
闂侀潧妫楅敃锕傚春瀹ュ棛鈻旈柟瀛樺笧椤愮偓绻濋弴銊ヤ簼闁绘牞鍩栫缓浠嬪炊瑜滈弳鏃堟偣娓氬﹥瀚�
婵炴垶鎼╅崢鐓幟瑰Δ鍛闁归偊鍨奸崵鏃堟煕韫囨挻鍟為柡鍛У缁嬪顢橀垾鎰佷紗闁诲海顣幏锟�
闂佸吋妲掔划楣冾敋閵忋倕鏋侀柛娑卞墰閻ㄦ垿鏌ㄥ☉娆戞憠he Lost
缂備椒鑳堕崑娑氱玻閻愬鈻旈柛鎰╁妼婵炲洤鈽夐幘鎰佹Ц闁诡喗娲熼幊婊堫敂閸曗晙鍑介梺鍛婂喕閹凤拷
Don't burn the can