[轉載]轉基因玉米讓老鼠提前死亡——法國做了老鼠終生實驗

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路透社倫敦 2012-9-19 報道（翻譯）

實驗鼠終生飼喂孟山都轉基因玉米或者接觸最暢銷的除草劑農達，患上癌症和多種器官衰竭——法國周三發布研究結果。

領銜研究者過去曾經受到業界指責，這會令其他專家擔心，他們的結論下得很匆忙。但是這次公布的發現，是對轉基因農作物安全性爭執打出的一記重拳。

不同往常的做法，這一次該研究組沒有在發表論文之前讓記者邀請外部評論。

論文發表在同行評審的“食品與化學毒理學”雜誌上，在倫敦同步舉行了新聞發布會。

卡昂大學的Gilles-Eric Seralini 和他的同事說，在實驗鼠的飼料中加入抗除草劑的玉米NK603——孟山都公司的一個玉米品種，或者在飲水中包含低於美國安全標準允許的草甘膦水平，都導致了實驗鼠相比對照組提前死亡。

實驗鼠患上乳腺癌，發生肝腎衰竭。研究者說，50%的雄性和70%的雌性實驗鼠提前死亡，對照組相應的數字分別是30%和20%。
Seralina 屬於關注轉基因安全性的一個研究團隊，2009年 12月曾發表論文，質疑隻做短期實驗的做法。這次他們推進了一大步，對兩年壽命的實驗鼠做了全程追蹤調查。

孟山都公司對較早的那份研究報告說，法國研究者的結論沒有足夠的根據。
Seralini相信，他們這次老鼠生命全過程實驗的結果更加接近真實，比90天飼喂實驗更具有權威性，轉基因農作物的安全性都是以90天喂養的結果決定的，而90天在2年的壽命中，隻相當於剛剛達到成年的年齡。

下麵的照片來著法國“新觀察家”雜誌。

路透社新聞原文

(Reuters) - Rats fed a lifetime diet of Monsanto's genetically modified corn or exposed to its top-selling weedkiller Roundup suffered tumours and multiple organ damage, according to a French study published on Wednesday.

Although the lead researcher's past record as a critic of the industry may make other experts wary of drawing hasty conclusions, the finding will stoke controversy about the safety of GM crops.

In an unusual move, the research group did not allow reporters to seek outside comment on their paper before its publication in the peer-reviewed journal Food and Chemical Toxicology and presentation at a news conference in London.

Gilles-Eric Seralini of the University of Caen and colleagues said rats fed on a diet containing NK603 - a seed variety made tolerant to dousings of Roundup - or given water containing Roundup at levels permitted in the United States died earlier than those on a standard diet.

The animals on the GM diet suffered mammary tumours, as well as severe liver and kidney damage.

The researchers said 50 percent of males and 70 percent of females died prematurely, compared with only 30 percent and 20 percent in the control group.

Seralini was part of a team that flagged previous safety concerns based on a shorter rat study in a scientific paper published in December 2009 but this takes things a step further by tracking the animals throughout their two-year lifespan.

Monsanto said at the time of the earlier research that the French researchers had reached "unsubstantiated conclusions."

Seralini believes his latest lifetime rat tests give a more realistic and authoritative view of risks than the 90-day feeding trials that form the basis of GM crop approvals, since three months is only the equivalent of early adulthood in rats.