32
Do we want a Genetically Modified future? Greg Revell [email protected] Gene Ethics Network

Do we want a Genetically Modified future? Greg Revell [email protected] Gene Ethics Network

Embed Size (px)

Citation preview

Page 1: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

Do we want a Genetically Modified future?

Greg Revell

[email protected]

Gene Ethics Network

Page 2: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

What is Genetic Engineering?

• A technology that allows for the insertion of genes from one organism into the DNA of another possibly unrelated organism.

• A GM food has been created using Genetic Engineering technology.

• Genetically Modified = Genetically Engineered

Page 3: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

How are genes transferred?

*Gene cassette

Blasted by particle

gunA T C G

Page 4: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

Effect on the DNA

• Mutations (2-4% of DNA)• Deletion of genes• Permanently on or off• Altered gene expression (up to 5%)

Page 5: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

What could go wrong?

Page 6: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

• Pigs engineered with human gene: some born with no anus or genitals.

• GM tobacco: created toxic compound not normally found in tobacco.

• GM yeast: unintentionally increased natural toxin 40 to 200 times.

• A GM potato: accidentally had its starch content boosted.

Page 7: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

FDA (in U.S) declares GMOs no different

“The agency is not aware of any information showing that foods derived by these new methods differ from other foods in any meaningful or uniform way.”

“Statement of Policy” May 29, 1992

Page 8: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

Secret FDA documents revealed that the

statement was a lie

Page 9: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

Agency scientists warned of:

• Allergens

• Toxins

• New diseases

• Nutritional problems

Page 10: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

Who overruled the scientists?

Michael Taylor

• In charge of FDA policy

• Former Monsanto lawyer

• Later Monsanto vice president

Page 11: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

Why is the American experience important?

• Australian authorities adopted American protocols for safety testing

• Australian approvals granted based on “evidence” from U.S

• “Evidence” dates back to early 90s.

Page 12: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

First GM crop

FlavrSavr Tomato

Page 13: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

Rats refused to eat the tomato

Rats were forced fed through gastric tubes and

stomach washes.

Page 14: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

After 28 days

• 7 of 20 rats developed stomach lesions and bleeding

• Another 7 of 40 died within 2 weeks

• Tomato was approved Industry funded study

Page 15: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

GM potatoes damaged rats

Rats developed• Potentially precancerous cell growth in the

digestive tract• Smaller brains, livers and testicles• Partial atrophy of the liver, and• Immune system damage

Lancet, 1999

Page 16: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

Intestinal WallNon-GM GM

Page 17: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

Stomach LiningNon-GM GM

Page 18: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

Russian Academy of SciencesMice fed GM soy

• Altered young sperm cells

• Embryos had altered gene expression

Page 19: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

GM soy fed

Control

GM-soy: disturbance of blood stream

Control

Mice testicles

Page 20: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network
Page 21: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

 

Page 22: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

GM crop approvals vs hospital admissions

Anaphylaxis Admissions vs GM Crop Approvals

GM Crop Approvals

Page 23: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

Safety assessment in Australia

Food Standards Australia New Zealand (FSANZ)

Page 24: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

Is FSANZ really protecting public health?

• Does not perform any of its own testing.

• Merely assesses data from GM companies

• Does not require any animal feeding studies.

• No clinical trials required.

• No post-market surveillance.

Page 25: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

FSANZ: The great rubber-stamper

• Monsanto’s MON863 corn– BANNED in Austria – Approved by FSANZ

• Syngenta’s A-A GM corn– BANNED in Sth Africa – Approved by FSANZ

• Bt63 GM rice– ILLEGAL in EU – NO ACTION by FSANZ

• Syngenta’s Bt10 corn– ILLEGAL in EU, Japan – Approved by FSANZ

Page 26: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

“But I’ll just read the labels!”

• GM foods do not have to be labeled if:– Sold in restaurant or food outlet– Food is derived from animals fed GM fodder.– If GM product is an oil, enzyme or processing

agent.– If less than 1.0% “accidental” contamination.

Page 27: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

Environmental contamination is inevitable

• Pollen & bees• Wind• Flood• Farm operations• Storage & Handler• Transport• Seed cleaning• Contaminated Seed

Page 28: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

West

Nov 2002: Winds of 100 km/hr or more

Australia experiences dust storms regularly

WA

NSW

Canola crop blown away

Page 29: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

Mythbusters

• “GM will feed the world” • “GM uses less pesticides” • “We’ve been genetically modifying plants for

years” • “GM has been adopted all over the world” “GM is rigorously tested”

Page 30: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

What the experts say

““We are concerned that FSANZ may be comfortable with the possibility of a significant number of people suffering a hepatitis-like illness as a result of a food that FSANZ has assessed to be safe.” – Public Health Association of Australia

“The number of scientists who are not convinced about the safety of GM foods is substantial enough to prevent the existence of a general recognition of safety. I am not aware of any study in the peer-reviewed scientific literature that establishes the safety of even one specific GM food let alone the general class” – Geneticist and Emeritus Professor Richard Lacey M.D., Ph.D

“The real threat to the future is the irresponsible and premature release of GMOs that are full of unsound scientific assumptions, rife with careless science, and arrogantly dismissive of valid concerns. The technology is inadequately developed to ensure its safety.” Professor Patrick Brown, College of Agriculture and Environmental Science, UCLA.

Page 31: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

The final word …

“Any politician or scientist who tells you that these [GM] foods are safe is either very stupid or lying.”

Dr. David Suzuki

Page 32: Do we want a Genetically Modified future? Greg Revell gregr@geneethics.org Gene Ethics Network

www.geneethics.org

www.madge.org.au

www.truefood.org.au

www.non-gm-farmers.com

More information …