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Governments
look to new biotech rules as scientists push for more
study
December
19
CNN
A panel of U.S. and European Union biotech experts
recommends new rules for genetically modified crops -- and
possible mandatory labeling for biotech food items -- just
days after scientists released one of the first full-scale
reviews of the state of biotech crops.
"Consumers should have the right of informed
choice regarding the selection of what they want to
consume," said the 20-member U.S.-EU panel, which
included scientists, farmers, consumer advocates and
industry officials.
The panel said Monday that participating nations should
set "content-based mandatory labeling
requirements" for foods that contain "novel
genetic material," a term Europeans use for
ingredients in genetically modified or GM foods.
GM crops hold
risks and benefits
The United States and EU members currently do not
require the labeling of products with gene-altered
ingredients, but proposals are being considered. In the
meantime, the EU has gone ahead and set a moratorium on
the approval of new GM crops.
Release of the governmental recommendations comes on
the heals of Friday's status report, published in the
journal Science, that found GM crops have potential for
both risks and benefits. Scientists still don't know,
though, just how much ecological havoc they could wreak by
altering the DNA of world crops.
"A review of existing scientific literature
reveals that key experiments on both the environmental
risks and benefits are lacking," wrote LaReesa
Wolfenbarger, an ecologist and co-author of the Science
study. The other is Paul Phifer, a conservation biologist
who, along with Wolfenbarger, is on fellowship at the
Washington-based American Association for the Advancement
of Science, the world's largest nonprofit scientific
federation.
"The complexity of ecological systems presents
considerable challenges for experiments to assess the
risks and benefits and inevitable uncertainties of
genetically engineered plants," the authors wrote. In
other words, new assessments of GM crops are likely to be
complex -- with risks varying even among certain crops
planted in certain regions -- and the data-gathering may
be time-consuming and difficult.
Such an evaluation is "still in its infancy,"
concluded the study, published in Friday's editions. The
researchers called for more tests to be able to detect the
accidental creation of pesticide-resistant "superweeds"
or to measure chemical changes in crop soils.
Human risks
still unknown
The analysis involved 35 different studies,
Wolfenbarger said, and included only those that other
scientists had determined were of high enough quality to
merit publication. The report did not look at studies on
whether GM crops are safe for people to eat, in part,
because so little data on such human risks have been
documented.
Concerns about scientific uncertainty were also part of
the U.S.-EU discussions last week, which could lead to new
legislation to reassure consumers about the safety of GM
crops. EU officials and members of the European Parliament
announced Friday they would release recommendations on GM
crop rules and labeling.
At issue behind the proposals and the Science report is
the impact on consumer confidence in the wake of concerns
that a GM corn called StarLink could have triggered
allergic reactions in humans. StarLink was responsible for
a nationwide recall of taco shells earlier this year after
regulators discovered the GM corn -- which has not been
approved for human consumption -- made into its way into
some corn products.
Experts have also vowed to revise existing rules on
crops, seeds and food products.
What
price progress?
Possible benefits of gene-altered crops include better
yield, the need to use fewer pesticides and herbicides
and, perhaps, higher nutritional value.
Those promises remain unproven, the Science study said,
because existing studies have fallen short of pinpointing
actual GM crop benefits.
"How we document the benefits is critical,"
the authors said.
Disease-resistant
calf cloned in Texas
December
18
UPI
COLLEGE
STATION, Texas - Texas A&M University researchers
Monday trotted out a cloned calf they said is resistant to
diseases such as brucellosis and tuberculosis and could
change livestock breeding around the world.
he
month-old bull was cloned using cells that were frozen for
15 years, which the researchers said was the longest time
that genetic material had ever been maintained by
cryopreservation, thawed, and then successfully used in
cloning.
"The
impact of cloning disease-resistant cattle is potentially
monumental," said Dr. Garry Adams, one of the Texas
A&M researchers. "For example, in countries where
they are unable to pasteurize milk to kill the bacteria or
process meat appropriately, breeding disease-resistant
cows could greatly contribute to a safer food supply,
especially pre-harvest."
Adams
and Dr. Joe Templeton, both with the Texas Agricultural
Experiment Station and the Texas A&M College of
Veterinary Science, conducted the breeding research
program.
The
calf, named 862 (86 squared) due to his exponential
genetic potential, was born three years after the death of
Bull 86, his genetic donor. Bull 86 was found after the
researchers tested hundreds of cattle to find one that was
naturally resistant to brucellosis, and under laboratory
conditions, to tuberculosis, and salmonellosis, they
said.
In
1985, cells from the tip of Bull 86's ear were frozen for
future genetic study. Fifteen years later, Drs. Taeyoung
Shin and Mark Westhusin, also with the Texas A&M
research program, were able to clone Bull 86. A DNA
analysis showed that Bull 862 was a genetic clone of Bull
86.
Bull
862 is believed to be the first animal specifically cloned
for disease resistance, the Texas A&M researchers
said.
Brucellosis,
tuberculosis, and salmonellosis are infectious bacterial
diseases that can be transmitted from one herd to another
and even to humans. Although nearly eradicated in the
United States and Canada, brucellosis and tuberculosis are
widespread elsewhere in the world and could find their way
back to U.S herds.
"Brucellosis
and tuberculosis are prevalent in Mexico and could easily
be brought into the United States by stray cattle that
swim across the Rio Grande, or by any of the approximately
one million cattle that are imported annually from our
neighbors under the NAFTA treaty," said
Templeton.
The
potential for breeding disease-resistant cattle is
important for the world because vaccinations, testing,
quarantine, and even destroying infected herds have not
been 100 effective in controlling the diseases, he
said.
"This
research will benefit ranchers in many countries who
cannot afford to vaccinate or test their herds for these
diseases. These unprotected cattle are a potential
reservoir for re-infection of herds in the United States
and specifically in Texas since most imports pass through
Texas," Templeton said.
The
experiment station and veterinary college at Texas A&M
are believed to be the only institutions currently using
cloning technology to clone disease resistant animals.
A
golden opportunity for planet
December
17
San Francisco Chronicle opinion by Debra J. Saunders
IMAGINE that you have worked for years to develop a
strain of rice that contains Vitamin A in a world where an
estimated 100 million children under age 5 suffer from
Vitamin A deficiency. This deficiency can prevent
diarrhea, which kills 2.5 million children a year, and
measles, which kills some 1 million children a year. So
you've offered to give the seeds to poor farmers in India,
where many children are raised on a rice-centered diet.
You rightfully could expect to be lauded as a hero.
You would not expect to be shouted at by angry students
or have to place your rice in a fortified grenade-proof
greenhouse. Yet as the New York Times has reported, that
is exactly the situation for Dr. Ingo Potrykus of
Switzerland and his "golden rice."
You see, the rice is genetically modified, which
offends the sensibilities of self-styled
environmentalists, who argue that genetically-modified
foods will endanger biodiversity. They call a strain of
rice that could save millions of children "Frankenfood."
And they are especially incensed at golden rice because
they see it as a "Trojan horse."
Anuradha Mittal of the Oakland-based Institute for Food
and Development explained that golden rice "is being
used by biotech companies as the silver bullet to end
Vitamin A deficiency, which causes night blindness. For us
at the institute, it shows a blindness to other
alternatives."
There are other alternatives that, Mittal argued, can
be used immediately and cheaply. For example, UNICEF
fights Vitamin A deficiency by giving high- dose capsules
to children twice a year. The cost: two cents per pill.
(If you want to send a check for the Unicef Vitamin A
project, call 1-800-FORKIDS or try unicefusa.org. You
might save a few lives.)
Mittal also suggested injecting more green leafy
vegetables in the Third World diet. And: "We need to
have the political will to end hunger."
That's a nice agenda, but hunger won't end tomorrow,
and green leafy vegetables don't grow on trees in
Calcutta.
UNICEF adviser Werner Schulting isn't anxious to scoff
at a product that could save lives. He said of golden
rice, "I think it is in principle a great development
which could potentially contribute significantly to a
reduction in Vitamin A deficiency." If children don't
have enough Vitamin A, he said, they risk a 20 percent
higher chance of dying in early childhood.
Gary F. Barton of Monsanto, which has developed a
"golden mustard" that will yield Vitamin A-rich
cooking oil for the Third World, is taken aback by the
venom at genetically modified foods. To Mittal's criticism
that there are other ways to address vitamin deficiency,
he responded, "Why aren't they doing it? No one's
stopping them."
Golden rice "is going to lead to further
concentration of wealth and control by corporations,"
critic Mittal argued.
"They're afraid it might work and provide benefit
to people," Barton added. "I don't understand
that."
It is hard to understand.
Of course there is a need for safeguards to keep
bioengineered foods from contaminating other plant life.
Ditto studies that use objective criteria to measure the
effects of genetically modified foods.
That said, there also should be a sense of urgency to
push for these foods to reach the Third World in order to
spare countless children from blindness, sickness and
death.
And America is silent. The anti-bioengineered food
people have managed to frame the debate as one between the
good people, who want to protect the purity of our food,
and the bad people, who want to use evil science to alter
it.
The good people who want to save the environment so
that Twinkies will be safe for "our children"
versus the bad people who develop seeds that allow farmers
to use fewer pesticides. (Which just happens to be good
for farmworkers, but forget that.)
Today, sensibilities trump sense. The modern person
sneers at Marie Antoinette's famous remark, "Let them
eat cake." He sneers happily oblivious to the 21st
century American equivalent: Let them eat green leafy
vegetables.
Threat
that never was
A
laboratory study which suggested that GM crops harmed
butterflies provoked protests across Europe. Now
environmentalists are having to backtrack
December 14
Times of London
The
monarch butterfly has a fragile and fascinating existence.
Every year, the brilliant orange, black and white insects
migrate from Mexico to the corn belt of the USA and
Canada, where they lay their eggs. Though many die en
route, the butterflies still reach their destination in
such numbers that they have become a regional icon — the
monarch is a state symbol in Minnesota. Their popularity,
and sensitivity to their environment, has made them a
“touchstone” species for conservation. So when a 1999
laboratory study suggested that monarchs could be killed
by a common form of genetically modified maize, it
attracted a furious reaction from environmentalists and
the public. A team led by John Losey, an entymologist at
Cornell University, fed butterfly larvae with pollen from
maize engineered with its own pesticide. It stunted the
larvae’s growth. After eating the pollen for four days,
44 per cent were dead.
The impact was devastating and was one of the catalysts
for the popular protests against GM food that ignited
across Europe in 1999. An issue that had been simmering
for months rapidly acquired the shape of a political
crisis. Supermarkets declared themselves GM-free, the
Prince of Wales proclaimed his concerns and the Government
approved a tough new labeling policy for GM products. Now,
it turns out, the panic was unjustified. The episode
serves as a warning for those wading into controversial
areas, where quick answers appear to be prized above
accuracy.
After the Cornell study, anti-GM campaigners called on
governments to ban similar crops immediately. The European
Commission quoted the findings when it delayed the process
to approve GM maize for sale in Europe. Even in the US,
where consumers had been relatively untroubled about GM
food, the apparent threat to monarch butterflies made
waves.
In August, another study, at Iowa State University,
claimed to have confirmed the effect. The campaigners’
message, repeated mantra-like by figures such as Lord
Melchett of Greenpeace, was clear: GM maize kills
butterflies. And it has largely stuck.
The science, however, is not quite that simple. Few
specialist researchers believe that the Cornell or Iowa
State studies prove anything of the kind. Even as his work
was published, Dr Losey himself sounded caveats. New
research into the actual effects of GM maize on monarchs
in the wild has now cast further doubt on the
environmentalists’ claims. Yet while Dr Losey’s 1999
study was reported on front pages, the latest findings
have barely had a hearing in Britain.
The Cornell research, published in the prestigious
peerreviewed journal, Nature, never actually made
the claims attributed to it by some campaigners against GM
food. It was never intended to replicate the actual
conditions in which monarch butterflies might experience
GM pollen. This fact was conveniently overlooked as the
storm broke.
The experiments tested the toxicity of pollen from
maize engineered with genes to produce a bacterial
insecticide, Bacillus thuringiensis (Bt). The
insecticide is commonly used by organic farmers to control
the European corn borer, a voracious pest which, despite
its name, regularly devastates North American crops. As
the monarch is closely related to the corn borer, most
scientists expected it to be affected by Bt, even though
the insecticide is harmless to other insect groups and
larger animals, including humans.
To test the hypothesis, butterfly larvae were fed
milkweed leaves — their usual food in the wild —
dusted with high concentrations of pollen from Bt maize.
The effects, as expected, were clear: when fed exclusively
on the modified pollen, the monarchs, like their cousins,
were poisoned.
A cause for alarm? Not necessarily, according to Dr
Losey. In his Nature paper, he pointed out
explicitly that his findings applied only to the
laboratory. The butterflies were fed exclusively on a food
they would not normally eat, with no choice in the matter:
they had to eat toxic pollen, or not eat at all. The doses
of pollen were eight times the level likely to be found in
the wild. Dr Losey urged caution: “We can’t predict
how serious the risk is until we have a lot more data.”
That data is now starting to pour in, and it is not to
the environmentalists’ liking. At the end of last month,
entymologists from universities across the US and Canada
gathered at a conference in Chicago to discuss the first
results of field trials launched in the wake of the
Cornell study. The message was strikingly different from
Lord Melchett’s.
In separate experiments conducted in cornfields in
Minnesota, Iowa, Maryland, Michigan and Ontario,
researchers from different universities found no
significant differences between butterfly survival in
areas planted with GM maize, and those planted with
conventional crops. “If there are any differences out
there, they aren’t very profound,” said Richard
Hellmich, an entymologist from the US Department of
Agriculture, attached to Iowa State University.
The Minnesota study, indeed, showed that monarchs were
actually more plentiful at the edges of one GM cornfield
than in a nearby wooded area. A lack of predators in the
GM field seemed to offer a better habitat to the
butterflies, according to William Hutchison, an
entymologist at the University of Minnesota at St Paul. In
Iowa, Dr Hellmich’s team found that found that pollen
rarely collected on milkweed at anything like the
concentration that could be toxic to butterflies: even the
small quantities which did land on the monarch larvae’s
food were normally washed or blown away.
An experiment at the University of Maryland found that
monarchs did much better in fields of Bt sweetcorn, which
are not sprayed with pesticide, than in conventional
sweetcorn fields, which are.
John Foster of the University of Nebraska, said the
risk from Bt corn was insignificant compared to that of
habitat destruction in Mexico, the spraying of pesticides
and the mowing of meadows and roadside verges that are
rich in milkweed.
The findings remain preliminary, and await peer review
and formal publication. Even so, Eldon Ortman of Purdue
University in Indiana, the conference chairman, said that
though no one could rule out risk, the overall picture was
starting to become clear: “This is not a very big
issue,” he said.
As Guy Poppy, a leading British entymologist, says:
“The Cornell study just identified that Bt corn could be
hazardous to monarch butterflies: if a monarch has no
choice and eats Bt corn, most will die. What is really
important, though, is quite how widespread the hazard
actually is in nature. We now have a string of studies
that suggest the hazard is remote. But as the first study
was the worst case scenario, it is the one everyone
remembers.”
Three
more GM scares
Allergenic
soya beans
The seed company Pioneer attempted to engineer a
high-protein soya bean by adding a gene from a Brazil nut.
Laboratory safety tests found the gene had also
transferred a known allergen, and research on the plant
was abandoned long before it was ever eaten by humans.
Even so, anti-GM activists continue to cite the case as an
example of the risks of GM foods rather than as an example
of the rigor with which they are tested.
Toxic
GM potatoes
Arpad Pusztai, a scientist at the Rowett Research
Institute in Aberdeen, claimed potatoes modified with a
gene from snowdrops to produce an insecticide were
poisonous to rats, and that the genetic modification
process made the toxic effects worse. Though the potatoes
were never intended for human consumption, he said the
public were being treated as “human guinea pigs” over
the technology. He was sacked after his superiors
pronounced the study misleading.
Though Dr Pusztai became something of a cause célèbre
among anti-GM campaigners, his work has been repeatedly
criticised by independent scientists, including the Royal
Society which found the experiment was “flawed in
design, execution and analysis”, and lacked detailed
controls.
The potatoes studied by Dr Pusztai were modified to
contain lectin, a substance known to be toxic to most
animals. Many scientists pointed out it was thus not
surprising that lectin-producing potatoes were toxic to
rats, and certainly no indictment of the GM process.
The work was eventually published in The Lancet, but
only alongside a commentary insisting that the results
“do not allow the conclusion that the genetic
modification of potatoes accounts for adverse effects in
animals”.
GM
superbugs
Most GM products contain a gene for antibiotic
resistance, which is used as a marker for scientists to
spot which plants in a laboratory batch have taken on new
genetic features. Activists against transgenic crops often
claim that this gene could “jump” to stomach bacteria
when it is consumed, leading to superbugs against which
common antibiotics are useless.
Even if such genes can “jump” from one organism to
the other — and the consensus is that it is very
difficult for them to do so — the notion may be less
worrying than it sounds. The vast majority of such genes
used in current crops confer resistance to antibiotics
such as kanamycin, which are hardly used in modern
medicine because most bacteria are already resistant to
it.
Genes protecting against one antibiotic with a clear
clinical use — ampicillin, used to treat gonorrhea —
are used in some GM crops. Scientists have largely
accepted that the risk of this gene being passed on,
however small, is too great to accept, and are phasing out
its use.
Did
genetically engineered foods reach India?
December 14
Economic Times
AFTER the brouhaha over
cheap Chinese imports, the focus has now shifted to
genetically modified foods.
Stung by the criticism that genetically engineered foods may
have "unknowingly" found their way into India as
part of US aid and relief to the Orissa flood victims, the
government has begun the process of looking into the issue.
As a result, the commerce ministry has been directed to
prepare a note on GM foods, which may figure as part of the
deliberations on Agreement on Agriculture, scheduled for
review in March.
The good and ill effects of GM foods have been debated
endlessly without any sign of a consensus emerging either
globally or at home. While there is a strong lobby opposing
even the setting up of a working group on biotechnology at
WTO — issues that make it to the working group level
normally become acceptable as heads of negotiation under the
WTO — there is also a strong group which believes that
India should not oppose the US, Canadian and Japanese move.
So also is the issue of GM foods. However, recent
allegations by experts like Vandana Shiva, director,
Research Foundation for Science, Technology and Ecology,
that GM foods have clandestinely found their way into the
country, have once again raised the specter of Frankenstein
Foods.
It is Dr Shiva’s contention that the US has used even a
mega disaster like the Orissa cyclone - which killed 35,000
people - to dump "unlabelled" soya and corn on a
predominantly rice-eating population.
Medical professionals at AIIMS too have alleged similar
things, which has resulted in forcing the government to
examine the issue.
Part of the allegations stem from the fact that about
two-third of the food ($4.5 million out of the $6.5 million
US aid and relief for Orissa), which was imported for the
victims was not "labeled", — at a time when UK,
EU and several other countries have closed their doors to GM
foods — is being interpreted as these foods being
"rejects" which found their way into India.
Similar allegations also surround the genetically engineered
Vitamin A rice. Here, it is being alleged that government
and quasi government agencies are being roped in by seed
companies under the pretext of blindness alleviation to popularize
and market the new product.
While these are issues which are likely to be settled only
by scientists, doctors and biotechnologists, some facts
remain. At the peak of the GM food wave, seed companies like
Monsanto invested heavily in biotechnology R&D.
Modified seeds are the end result. These companies are
undoubtedly on the prowl, looking for new markets to reap a
return on their investments.
It is also true that propaganda against Frankenstein Foods
(GM foods) has reached feverish pitch in the West. Everybody
starting from Prince Charles to Paul McCartney (ex-Beatle)
have spoken against GM foods.
The EU, which is the biggest importer of food stuffs, has
indicated that it would like to renegotiate the Sanitary and
Phytosanitary Systems Agreement to permit the use of trade
restrictions on grounds of consumer preference.
As a result of EU’s position on GM Foods, the US has
fallen out as a trading partner. The last two years,
particularly 1999, have seen a reversal of GM food’s
fortunes, with at least half a dozen companies and retail
chains publicly promising to shun GM foods.
Some of the big names include Mark and Spencers, Sainsbury,
Carrefour, Irish Superquinn, Tesco, Unilever, Nestle,
Cadbury, McDonalds and Blake Brothers in UK and EU. Iceland
has taken the whole debate a step forward by becoming the
first company to ban GM Foods in its feedstock.
The US government has consistently opposed the labeling of
GM foods. At Seattle, US President Bill Clinton made no
bones about the US government’s support to biotechnology
and biofoods.
US commitment to GM Foods stems from the fact that it is the
foremost country which has put large tracts of land under GM
Food cultivation, followed by Canada, Australia, Argentina
and Japan, to a small extent. Its companies are the largest
investors in novel foods.
The emerging opinion is that if at all India does decide to
provide access to genetically engineered foods, that it
should do so consciously rather than open its doors to
clandestine entry.
In that case, India would have would have to join hands with
other countries to push for labeling of at least those GM
foods, which have been substantially altered in order to
allow consumer choice.
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