日韩色综合-日韩色中色-日韩色在线-日韩色哟哟-国产ts在线视频-国产suv精品一区二区69

手機APP下載

您現在的位置: 首頁 > 雙語閱讀 > 雙語雜志 > 健康生活 > 正文

肥胖或將永久損害大腦傳遞飽足感的能力

來源:中國日報網 編輯:sophie ?  可可英語APP下載 |  可可官方微信:ikekenet

Obesity changes the brain, with ‘no sign of reversibility,’ expert says

肥胖或將永久損害大腦傳遞飽足感的能力

Obesity may damage the brain’s ability to recognize the sensation of fullness and be satisfied after eating fats and sugars, a new study found.

一項新研究發現,肥胖可能會損害大腦在人體攝入脂肪和糖分后傳遞飽足感的能力。

Further, those brain changes may last even after people considered medically obese lose a significant amount of weight — possibly explaining why many people often regain the pounds they lose.

而且,即使在肥胖患者減肥之后,大腦的這一改變可能仍會持續,這也許能解釋為什么許多人在減肥后又胖回來。

As defined medically, people with obesity have a body mass index, or BMI, of over 30, while normal weight is a BMI of between 18 and 25.

醫學上定義的肥胖者身體質量指數超過30,而體重正常者的身體質量指數在18和25之間。

The study, published Monday in Nature Metabolism, was a controlled clinical trial in which 30 people considered to be medically obese and 30 people of normal weight were fed sugar carbohydrates (glucose), fats (lipids) or water (as a control). Each group of nutrients were fed directly into the stomach via a feeding tube on separate days.

6月12日發表在《自然·代謝》期刊上的這項研究開展了臨床對照測試,讓30名肥胖患者和30名體重正常者攝入了糖類碳水化合物(葡萄糖)、脂肪(油脂)或水(作為對照)。每一組營養物在不同日期通過飼管直接輸送到他們的胃里。

The night before the testing, all 60 study participants had the same meal for dinner at home and did not eat again until the feeding tube was in place the next morning. As either sugars or fats entered the stomach via the tube, researchers used functional magnetic resonance imaging (fMRI) and single-photon emission computed tomography (SPECT) to capture the brain’s response over 30 minutes.

在測試前一晚,60名研究參與者都在家中吃了同樣的飯,直至次日早上使用飼管之前都不再進食。由于糖和脂肪都是通過飼管進入胃的,研究人員能夠用功能性磁共振成像和單光子發射計算機斷層掃描技術來捕捉大腦在30分鐘內的反應。

In people with normal weight, the study found brain signals in the striatum slowed when either sugars or fats were put into the digestive system — evidence that the brain recognized the body had been fed.

研究發現,體重正常者在糖或脂肪進入消化系統時大腦紋狀體發出的信號會減慢,這證明大腦意識到身體已被喂食。

At the same time, levels of dopamine rose in those at normal weight, signaling that the reward centers of the brain were also activated.

與此同時,體重正常者的多巴胺水平會上升,這意味著大腦的獎勵中心也被激活了。

However, when the same nutrients were given via feeding tube to people considered medically obese, brain activity did not slow, and dopamine levels did not rise.

然而,當同樣的營養物通過飼管進入肥胖患者的胃里時,大腦活動并沒有變慢,多巴胺水平也沒有上升。

Next, the study asked people with obesity to lose 10% of their body weight within three months — an amount of weight known to improve blood sugars, reset metabolism and boost overall health.

接下來,研究人員讓肥胖者在三個月內減掉10%的體重,減重10%據悉能夠改善血糖,重置新陳代謝,提升整體健康水平。

Tests were repeated as before — with surprising results. Losing weight did not reset the brain in people with obesity.

然后研究人員又重復了先前的測試,結果令人驚訝。減肥并沒有重置肥胖者的大腦。

Much more research is needed to fully understand what obesity does to the brain, and if that is triggered by the fat tissue itself, the types of food eaten, or other environmental and genetic factors.

要充分了解肥胖到底對大腦產生了什么影響,這一影響是由脂肪組織本身還是攝入的食物種類,亦或是其他環境或遺傳因素觸發的,還有待更多研究。

英文來源:美國有線電視新聞網

翻譯&編輯:丹妮

本文轉載自中國日報網,如有侵權,請聯系我們刪除。

重點單詞   查看全部解釋    
controlled [kən'trəuld]

想一想再看

adj. 受約束的;克制的;受控制的 v. 控制;指揮;

 
sensation [sen'seiʃən]

想一想再看

n. 感覺,感知力,激動,轟動

聯想記憶
resonance ['rezənəns]

想一想再看

n. 共鳴,共振,洪亮

聯想記憶
genetic [dʒi'netik]

想一想再看

adj. 基因的,遺傳的,起源的

聯想記憶
capture ['kæptʃə]

想一想再看

vt. 捕獲,俘獲,奪取,占領,迷住,(用照片等)留存<

聯想記憶
response [ri'spɔns]

想一想再看

n. 回答,響應,反應,答復
n. [宗

聯想記憶
minutes ['minits]

想一想再看

n. 會議記錄,(復數)分鐘

 
obesity [əu'bi:siti]

想一想再看

n. 肥胖,肥大

 
boost [bu:st]

想一想再看

vt. 推進,提高,增加
n. 推進,增加

聯想記憶
magnetic [mæg'netik]

想一想再看

adj. 有磁性的,有吸引力的,催眠術的

聯想記憶
?
發布評論我來說2句

    最新文章

    可可英語官方微信(微信號:ikekenet)

    每天向大家推送短小精悍的英語學習資料.

    添加方式1.掃描上方可可官方微信二維碼。
    添加方式2.搜索微信號ikekenet添加即可。
    主站蜘蛛池模板: 叶子楣哪部三级露了| 周子航| 天堂真的存在| 电影《正青春》| 77316电影| 八角笼中电影| 做菜视频| 潘霜霜惊艳写真照| 北京卫视今天全部节目表| 去分母解一元一次方程100道及答案 | 23号牛乃唐第一季电视剧免费观看| 唐人街探案5免费完整观看| angela white电影| 三级大片在线观看| 媳妇的全盛时代| 周柯宇个人资料| 好像怎么造句 二年级| 李乃文电影| 郑有杰| 莫比乌斯电影完整版免费观看| 帕兰妮·琳帕缇雅空| 碧血蓝天| 侠侣探案| 山楂树之恋电影剧情简介| 陆海涛| 热巴电视剧在线观看免费| 护士韩国电影| 五年级简易方程40题| 初夜在线观看| 女儿的朋友4| 员工的秘密| 在线高清毛片免费播放网站| 叶子楣作品| 小数加减法评课| 手机在线观看电影网| 母亲とが话しています免费| 木乃伊5| superstar电影在线播放| 四年级上册语文书有鬼| 神迹电影| 杨子萱|