罐装食品可能有损消化系统
文章来源:未知 文章作者:enread 发布时间:2018-04-21 06:30 字体: [ ]  进入论坛
(单词翻译:双击或拖选)
The next time you opt1 for canned foods such as corn, tuna, asparagus or chicken, think twice. They may contain zinc2 oxide3 that can potentially damage your digestive system, warn researchers.
 
下次你选择吃罐装食品,比如玉米罐头、金枪鱼罐头、芦笋罐头或者鸡肉罐头之前,要三思而行。研究人员提醒说,这些罐装食品中含有的氧化锌可能会损害你的消化系统。
 
The findings showed that nanoparticles of zinc oxide present in the lining4 of certain canned goods, usually considered good for its antimicrobial properties and preventing staining of sulfur-producing foods, may negatively affect the way in which human digestive tract5 operates.
 
"We found that zinc oxide (ZnO) nanoparticles at doses that are relevant to what you might normally eat in a meal or a day can change the way that your intestine6 absorbs nutrients8 or your intestinal9 cell gene10 and protein expression," said Gretchen Mahler, Associate Professor at the Binghamton University in the New York.
 
Researchers found that canned food contained 100 times the daily dietary allowance of zinc.
 
"They tend to settle onto the cells representing the gastrointestinal tract and cause remodelling11 or loss of the microvilli, which are tiny projections12 on the surface of the intestinal absorptive cells that help to increase the surface area available for absorption," Mahler added.
 
This loss of surface area tends to result in a decrease in nutrient7 absorption.
 
Some of the nanoparticles also cause pro-inflammatory signaling at high doses, and this can increase the permeability of the intestinal model, the researcher said.
 
In other words, it can even allow the passage of compounds that are not supposed to pass through into the bloodstream.
 
The study, published in the journal Food & Function, looked at how many particles might be transferred into the canned food.


点击收听单词发音收听单词发音  

1 opt a4Szv     
vi.选择,决定做某事
参考例句:
  • They opt for more holiday instead of more pay.他们选择了延长假期而不是增加工资。
  • Will individual schools be given the right to opt out of the local school authority?各个学??赡苡腥ㄑ≡裢顺龅胤浇逃致??
2 zinc DfxwX     
n.锌;vt.在...上镀锌
参考例句:
  • Brass is formed by the fusion of copper and zinc.黄铜是通过铜和锌的熔合而成的。
  • Zinc is used to protect other metals from corrosion.锌被用来?;て渌鹗舨皇芨?。
3 oxide K4dz8     
n.氧化物
参考例句:
  • Oxide is usually seen in our daily life.在我们的日常生活中氧化物很常见。
  • How can you get rid of this oxide coating?你们该怎样除去这些氧化皮?
4 lining kpgzTO     
n.衬里,衬料
参考例句:
  • The lining of my coat is torn.我的外套衬里破了。
  • Moss makes an attractive lining to wire baskets.用苔藓垫在铁丝篮里很漂亮。
5 tract iJxz4     
n.传单,小册子,大片(土地或森林)
参考例句:
  • He owns a large tract of forest.他拥有一大片森林。
  • He wrote a tract on this subject.他曾对此写了一篇短文。
6 intestine rbpzY     
adj.内部的;国内的;n.肠
参考例句:
  • This vitamin is absorbed through the walls of the small intestine.这种维生素通过小肠壁被吸收。
  • The service productivity is the function,including external efficiency,intestine efficiency and capacity efficiency.服务业的生产率是一个包含有外部效率、内部效率和能力效率的函数。
7 nutrient 3vpye     
adj.营养的,滋养的;n.营养物,营养品
参考例句:
  • Magnesium is the nutrient element in plant growth.镁是植物生长的营养要素。
  • The roots transmit moisture and nutrient to the trunk and branches.根将水分和养料输送到干和枝。
8 nutrients 6a1e1ed248a3ac49744c39cc962fb607     
n.(食品或化学品)营养物,营养品( nutrient的名词复数 )
参考例句:
  • a lack of essential nutrients 基本营养的缺乏
  • Nutrients are absorbed into the bloodstream. 营养素被吸收进血液。 来自《简明英汉词典》
9 intestinal DbHzX     
adj.肠的;肠壁;肠道细菌
参考例句:
  • A few other conditions are in high intestinal obstruction. 其它少数情况是高位肠梗阻。 来自辞典例句
  • This complication has occasionally occurred following the use of intestinal antiseptics. 这种并发症偶而发生在使用肠道抗菌剂上。 来自辞典例句
10 gene WgKxx     
n.遗传因子,基因
参考例句:
  • A single gene may have many effects.单一基因可能具有很多种效应。
  • The targeting of gene therapy has been paid close attention.其中基因治疗的靶向性是值得密切关注的问题之一。
11 remodelling 965d241a7ef7fe602b7d6e8cc7bc56ae     
v.改变…的结构[形状]( remodel的现在分词 )
参考例句:
  • That shabby street needs remodelling. 那条陋街需要重建。 来自辞典例句
  • Function-forming and remodelling collagen, reticular and elastic fibres and the ground substances. 合成蛋白质,构成疏松结缔组织的纤维和基质成分。 来自互联网
12 projections 7275a1e8ba6325ecfc03ebb61a4b9192     
预测( projection的名词复数 ); 投影; 投掷; 突起物
参考例句:
  • Their sales projections are a total thumbsuck. 他们的销售量预测纯属估计。
  • The council has revised its projections of funding requirements upwards. 地方议会调高了对资金需求的预测。
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