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* Study “of insufficient scientific quality”, says EFSA

* Findings have no bearing on safety of GM corn, it says

* Study author questions EFSA’s GM assessments

By Charlie Dunmore

BRUSSELS, Oct 4 (Reuters) – A French study linking a type of

genetically modified corn to health risks in rats was of

insufficient scientific quality to draw any conclusions on the

safety of such crops, an initial review by the EU’s food safety

watchdog has found.

Last month, researchers at the University of Caen said rats

fed on Monsanto’s NK603 GM corn or exposed to its top-selling

Roundup glyphosate weed killer were at higher risk of suffering

tumours, multiple organ damage and premature death.

The study led Russia to temporarily ban imports of NK603,

which can be found in internationally traded animal feed, and is

designed to be grown in conjunction with use of glyphosate to

control weeds.

France’s government said it would also ban imports if the

findings are confirmed, but other experts have questioned the

study’s methods and Monsanto said it felt confident its products

had been proven safe.

“Considering that the study… has unclear study objectives

and given its inadequate design, analysis and reporting, EFSA

finds that it is of insufficient scientific quality for safety

assessments,” the European Food Safety Authority said in a

statement on Thursday.

Among other criticisms, the panel of EFSA scientists that

reviewed the paper said the authors had failed to establish

appropriate control groups as part of the study, and had chosen

a strain of rat that is prone to developing tumours during its

normal lifespan.

“Therefore, EFSA concludes that the study as reported does

not impact the ongoing re-evaluation of glyphosate and does not

see a need to reopen the existing safety evaluation of maize

NK603,” the panel concluded.

Monsanto said EFSA’s findings confirmed the positive safety

assessments that its products had received by regulators

worldwide.

“Monsanto’s products are subject to detailed scrutiny and

safety testing. It is appropriate that claims like those made in

the publication… should be scrutinized in the same way,” the

company said in a statement.

WATCHDOG CRITICISED

The safety watchdog said it would ask the authors to provide

full details of the study’s design and procedures, ahead of a

final review due by the end of the month.

But the study’s lead author, Gilles-Eric Seralini, said he

would only make further information publicly available if EFSA

published all the data from its 2003 safety assessment of NK603,

which concluded that it was as safe as non-GM corn.

“To play fair they can’t keep their data secret. The

authorisation of these products is based in our view on data and

a methodology that are even more faulty,” he said.

Campaign group Friends of the Earth accused EFSA of putting

the interests of biotech firms ahead of public safety concerns.

“For the past decade, EFSA has consistently sided with the

biotech industry and disregarded health or environment concerns

about genetically modified crops. Instead of picking holes in

peer-reviewed research, they should take public concerns

seriously,” said food campaigner Mute Schimpf.

Consumer resistance to GM foods remains strong in Europe,

with the most recent EU survey showing 57 percent of people

oppose the technology compared with 27 percent in favour.

Only one GM crop, MON 810, is currently grown on a

commercial scale in Europe – a pest-resistant corn variety also

produced by Monsanto – which covers about 115,000 hectares of

farmland, mainly in Spain.

That compares with about 160 million hectares of GM crops

grown worldwide, including varieties of cotton, soybeans and

maize.

But while there is virtually no demand for GM foods in the

European Union, the bloc imports millions of tonnes of GM animal

feed each year from major growers including the United States,

Argentina and Brazil.

(Additional reporting by Marion Douet in Paris; Editing by

Anthony Barker)