Monsanto GM corn caused tumors in rats

French scientists have revealed that rats fed on GM corn sold by American firm Monsanto, suffered tumors and other complications including kidney and liver damage. When testing the firm’s top brand weed killer the rats showed similar symptoms.

The French government has asked its health and safety agency to assess the study and had also sent it to the European Union’s food safety agency, Reuters reports.

Based on the conclusion…, the government will ask the European authorities to take all necessary measures to protect human and animal health, measures that could go as far as an emergency suspension of imports of NK603 maize in the European Union,” the French health, environment and farm ministries said in a joint statement.

Researchers from the University of Caen found that rats fed on a diet containing NK603 – a seed variety made tolerant to amounts of Monsanto’s Roundup weedkiller – or given water mixed with the product, at levels permitted in the United States – died earlier than those on a standard diet.

The research conducted by Gilles-Eric Seralini and his colleagues, said the rats suffered mammary tumors, as well as severe liver and kidney damage. The study was published in the journal of Food and Chemical Toxicology and presented at a news conference in London.

Fifty percent of male and 70 percent of female rats died prematurely, compared with only 30 percent and 20 percent in the control group, said the researchers.

Monsanto spokesman, Thomas Helscher, said the company would review the study thoroughly but stated that other scientific studies had proved the biotech crops’ safety.

Some scientists however criticized the French researchers’ statistical methods and the use of a particular type of rat, saying the albino Sprague-Dawley strain of animal had a tendency to develop cancers.

But despite skepticism, the study draws attention to controversy surrounding genetically modified crops and the US biotech giant Monsanto.

Controversy has erupted over new French scientific research claiming that genetically modified corn and the herbicide Roundup increases the chance of lab rats developing tumours and dying prematurely.

The paper, published by journal Food and Chemical Toxicology overnight, prompted the French government to ask a health watchdog to investigate whether the strain of GM corn posed a threat to human health and imports should be suspended.

But independent scientists criticised the researchers for conducting the tests on rats highly prone to tumours and using an unconventional analysis described by one academic as a “statistical fishing trip”.

The paper found low levels of both GM corn strain known as NK603 and Roundup — the world’s best selling weed-killer — could cause severe health effects over a rats’ 2-year life-time, including mammary tumours and kidney and liver damage.


Up to 50 per cent of males and 70 per cent of females tested in the study died prematurely, compared with 30 per cent of rats in a control group.

The engineered corn, which is resistant to Roundup, and the herbicide itself are both products of agricultural biotechnology multi-national Monsanto.

But critics pointed to a 1979 study looking at the same species of rat — known as Sprague-Dawley — that found an overwhelming proportion of otherwise healthy rodents developed tumours before the age of two.

They also questioned the researchers’ use of just 20 control rats, compared with 80 rats exposed to different variations of GM corn and Roundup, and their failure to use a standard statistical analysis to test whether the results differed from what might be expected through random variation.

The French government responded to the paper by asking the National Agency for Health Safety to investigate the finding.


yeah just eat that shit right up..dont leave any behind..its good for you and the world..isnt it?

your being radiated..


~ by seeker401 on September 24, 2012.

3 Responses to “Monsanto GM corn caused tumors in rats”

  1. Reblogged this on RD Revilo.

  2. Monsanto’s research used the same species of rats and had the same sample size. Not exactly much of a criticism when they replicate the same research that GM advocates say is completely valid.

    Sounds like all the critics of the researched simply rehashed Monsanto’s press release.

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