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腰痛体操 寝ながら体操 寝てゴロゴロで健康に!  

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2005年12月21日付け、英ガーディアン紙に、

【食品添加物の複数同時摂取は有害である】

との見出しで、

食品添加物の人体への影響についての記事が

掲載されました。





記事を一部要約します。




 ・アスパルテームと人工着色料についての調査

 

 ◎論議を呼んだ甘味料アスパルテームや着色料は
 
  神経細胞の発達を阻害する可能性がある。
 





 ・実験中に、ネズミの神経細胞が成長停止



 ◎リバプール大学の研究者による実験では、

4種類の食品添加物

   
   ・アスパルテーム

   ・グルタミン酸ソーダ(MSG)

   ・青色の人工の着色剤

   ・黄色の人工の着色剤

   
    を組み合わせて神経細胞への毒性を調査。

            ↓

  神経細胞の成長が停止し、信号伝達システムを阻害



添加物を混合したものは、

各添加物を単体で摂取した場合を、

はるかに上回る影響を神経細胞に与えました。





 
2005年12月21日付け

ガーディアン紙より




※訳文は100%正しいとは限りません。

 内容の成否は原文に準拠します。



http://www.guardian.co.uk/science/story/0,3605,1671819,00.html






貧血と甲状腺機能亢進症(バセドウ病)との関係を

調べる中で、

私の体に起きている他の症状についても調べてみました。







原文はこちらです。

     


Combining food additives may be harmful, say researchers

· Aspartame and artificial colourings investigated
· Mice nerve cells stopped growing in experiments

Felicity Lawrence, consumer affairs correspondent
Wednesday December 21, 2005
The Guardian


New research on common food additives, including the controversial sweetener aspartame and food colourings, suggests they may interact to interfere with the development of the nervous system.
Researchers at the University of Liverpool examined the toxic effects on nerve cells in the laboratory of using a combination of four common food additives - aspartame, monosodium glutamate (MSG) and the artificial colourings brilliant blue and quinoline yellow. The findings of their two-year study were published last week in the journal Toxicological Sciences.

The Liverpool team reported that when mouse nerve cells were exposed to MSG and brilliant blue or aspartame and quinoline yellow in laboratory conditions, combined in concentrations that theoretically reflect the compound that enters the bloodstream after a typical children's snack and drink, the additives stopped the nerve cells growing and interfered with proper signalling systems.
The mixtures of the additives had a much more potent effect on nerve cells than each additive on its own.

The study reported that the effect on cells could be up to four times greater when brilliant blue and MSG were combined, and up to seven times greater when quinoline yellow and aspartame were combined, than when the additives were applied on their own. "The results indicate that both combinations are potentially more toxic than might be predicted from the sum of their individual compounds," the researchers concluded.

The tests used are the same as those applied when testing combinations of pesticides for toxicity. "They are recognised as predictive of developmental outcomes in humans," said Vyvyan Howard, a toxicopathologist and expert in foetal development who led the study.

Exposure to food additives during a child's development has been associated with behavioural problems such as attention deficit hyperactivity disorder.

Additives are licensed for use one at a time, but the study's authors believe that examining their effect in combinations gives a more accurate picture of how they are consumed in the modern diet.

"Although the use of single food additives is believed to be relatively safe in terms of development of the nervous system, their combined effects are unclear," Professor Howard said. "We think there are signs that when you mix additives, the effect might be worse."

The colours used in the research are synthetic dyes certified as safe food additives in the EU. However, brilliant blue (E133) has been banned in several European countries in the past. Quinoline yellow (E104) is banned in foods in Australia, Norway and the US. Previous research has shown that MSG (E621) and aspartic acid, one of the breakdown compounds in aspartame (E951), are neurotoxins, according to the authors of the study.

Brilliant blue is found in sweets, some processed peas, some soft drinks and some confectionery, desserts and ices. Quinoline yellow is found in some smoked haddock, some confectionery and some pickles. MSG, which is banned in foods for young children, is found in some pasta with sauce products, a large number of crisps, processed cheese, and prepared meals. Aspartame is found in diet drinks, some sweets, desserts and medicines.

The Food Standards Agency said it would need further details and clarification on the research before making a full assessment. "All of the additives included in the study are permitted for use in food under current EU legislation following a rigorous safety assessment," it said in a statement. The agency added it was funding research on the effects of mixtures of colourings on children's behaviour and kept the safety of additives under review.

Speaking for manufacturers, the Food and Drink Federation said the additives in the study had all been approved as safe by the EU's expert scientific committee.

The Aspartame Information Service, which represents the sweetener industry, dismissed the research, saying that it "did not provide any meaningful information" because it exposed mouse cells in the laboratory to undigested aspartame. "When we consume aspartame it is broken down in the digestive system to common dietary components. Aspartame has been in safe use for 25 years and has been reviewed and approved by more than 130 countries," it said.