這里所說的發(fā)現(xiàn)來自2012~2013年間發(fā)表的三項研究，試驗用的材料是孟山都公司的MON810抗蟲轉(zhuǎn)基因玉米品系的延伸品種。第一項研究表明，轉(zhuǎn)基因玉米與其未轉(zhuǎn)基因之前的親本實質(zhì)上不等同。第二項研究，用轉(zhuǎn)基因玉米做飼料喂養(yǎng)大鼠，發(fā)現(xiàn)器官重量和體重有增有減，血液化學(xué)成分有變化，提示可能存在毒性。第三項是病理組織學(xué)研究，動物被飼以轉(zhuǎn)基因玉米，對照組飼以非轉(zhuǎn)基因玉米，結(jié)果清晰地顯示器官組織出現(xiàn)病態(tài)，特別見于肝腎和小腸。此外還發(fā)生了精原細(xì)胞的壞疽(死亡)和剝落，精原細(xì)胞是形成精子的基礎(chǔ)，因此導(dǎo)致雄性不育。這些現(xiàn)象都發(fā)生在短短91天的飼喂之后。

這是最近許多長期轉(zhuǎn)基因玉米動物研究項目中最新的幾項，有對照。這些研究提示轉(zhuǎn)基因作物可能與嚙齒類動物和農(nóng)場動物的不育有直接關(guān)系。

2004年帕維亞大學(xué)做的研究，觀察到轉(zhuǎn)基因大豆飼料對小鼠生育的影響。草甘膦的問題也討論過。

2010年“俄國國家基因安全學(xué)會”與俄國“生態(tài)與進(jìn)化研究所”聯(lián)合進(jìn)行的研究顯示，Cambell 倉鼠被飼喂轉(zhuǎn)基因大豆兩年后失去生育能力。

2012年，杰里.拉斯曼的長期觀察表明，他養(yǎng)的豬因為轉(zhuǎn)基因飼料玉米的緣故而不能生殖;出現(xiàn)了假孕、有的豬產(chǎn)下水囊。為此他轉(zhuǎn)變成有機農(nóng)民，只生產(chǎn)有機產(chǎn)品。

轉(zhuǎn)基因作物引起動物不育的問題，政府管理者何時才想去面對？

下面是原文。

GM Bt Corn Causes Infertility in Rats – New Egyptian Studies

Posted on Jan 15 2014 - 4:56pm by Sustainable Pulse

Egyptian researchers have found that Bt corn is not substantially equivalent to non-GM parent and was toxic to rats, even after only 91 days of feeding.

These findings arose from three studies published in 2012 and 2013 on a type of GM insect resistant Bt corn developed using Monsanto’s MON810 trait.

One study showed that the GM corn was not substantially equivalent to the non-GM parent.

A second study examined the effects on rats of a diet containing the GM maize. The study found that the GM corn diet caused increased or decreased organs/body weight or changes in blood biochemistry that indicated possible toxicity.

In the third study, histopathological examination was carried out on the rats fed the GM maize, and the results were compared with rats fed non-GM maize. The study found clear signs of organ pathology in the GM-fed group, especially in the liver, kidney, and small intestine. An examination of the testes revealed necrosis (death) and desquamation (shedding) of the spermatogonial cells that are the foundation of sperm cells and thus male fertility – and all this after only 91 days of feeding.

These studies are the latest in a long line of studies and in-field cases that suggest GM crops could be linked directly to infertility in rodents and farm animals.

In 2004 research carried out at the University of Pavia considered the possible effects of a diet containing genetically modified (GM) soybean on mouse testes. Changes that could cause infertility problems in the mice testes were identified and the role that glyphosate could have caused in this was also discussed in the research findings.

In 2010 an experiment carried out jointly by the Russian National Association for Gene Security and the Institute of Ecological and Evolutional Problems showed that Campbell Hamsters lost the ability to reproduce after being fed GM soy for 2 years.

In 2012 after long research, Jerry Rosman discovered his pigs couldn’t reproduce because of genetically engineered corn. They produced sacs of water—false pregnancies. As a result, he’s become an organic farmer and proponent of organic foods.

Is it not about time for government regulators to look at the possible links between GM Crops and infertility?

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