[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[SANET-MG] a gene is a gene
From GM watch
"A gene is a gene is a gene" (item 1)
"...the human enzymes put into rice are responsible for causing most
kinds of human cancer" (item 2)
1.Why put human genes in rice? Prof Chris Leaver
2.Public relations triumph over science - Prof Joe Cummins
3.People who talk absolute nonsense - Prof G.D.W. Smith
------
1.Why put human genes in rice?
Tim Radford
Thursday April 28, 2005
The Guardian
http://www.guardian.co.uk/life/thisweek/story/0,12977,1471420,00.html
Why not? A gene is a gene is a gene, says Christopher Leaver,
Sibthorpian professor of plant sciences at Oxford. [and a former
consultant to Syngenta]
Plants, animals and humans often have very similar versions of the same
genes, to carry out the same function. Among these are genes that make
enzymes called cytochrome P450s, which break down and detoxify
poisonous chemicals. Japanese scientists have tested a human enzyme
(known as CYP2B6) in rice and potatoes. This enzyme is known to break
down more than a dozen herbicides, pesticides and industrial chemicals.
Farmers use herbicides to suppress weeds, but the crops need to survive
the spraying.
CYP286 rice did well in tests involving the use of about 17 different
herbicides, according to Sakiko Hirose, of the National Institute of
Agrobiological Sciences in Tsukuba. "The liver detoxifies everything in
human beings," Leaver says. "Plants have a lot of genes which also
detoxify."
Rice is a staple, but the addition of a "human" gene hardly qualifies as
an invitation to cannibalism. "You could synthesise this thing, if you
knew the sequence, in the lab. It doesn't actually have to come from a
human," he says. "It's DNA. It's a chemical."
· What did you think of this article? Mail your responses to
life@guardian.co.uk and include your name and address.
------
2.Comment from Prof Joe Cummins on the same issue
The article [] brings to attention the use of human Cytochrome p450
genes to produce resistance to most herbicides. A numberer of such
cytochrome p450 genes have been released for field testing in Japan. The
article swallows the biotech industry public relations that there is
nothing really wrong about putting human genes into rice.
The first thing that comes to mind is that the human enzymes put into
rice are responsible for causing most kinds of human cancer by activating
certain pollutants into forms that attack the genes causing mutation.
The common products of automobiles, incinerators and forest fires called
PAHs are activated to cause cancer by the P450 enzymes. The fact that
the humanized rice is likely to be loaded with active genotoxins
(carcinogens) is not discussed by the academic journal editors who
provide public relation for corporations.
Furthermore, the human genes are alerted in DNA sequence to be more
active in plants. The digestive fragments of altered human DNA may be
very destructive to the human liver by disrupting the liver cytochromoe
p450 genes as people eat the humanized rice.I am pointing out that the
DNA is different from the human DNA swallowed by cannibals (for example
Dahmer).
We have entered a dangerous era where public relations are favored over
scientific truth by those claiming to be the "real" scientists.
------
3.People who talk absolute nonsense
http://www.gmwatch.org/archive2.asp?arcid=3283
14 March 2004
The Editor,
The Sunday Times,
Dear Sir,
Is GM Food Good for You?
The argument advanced by Charles Pasternak for the safety of GM food is
false [News Review, Sunday 14th March, page 2, article entitled "GM food
could be good for you"]. Yes, the DNA of all living organisms is made
up of just four nucleosides, and yes, virtually all proteins are made up
from just 20 amino acids. But this does not imply that everything
containing these basic building blocks is without risk to human beings.
The same units, arranged in different ways, are contained in the
smallpox virus, bubonic plague and influenza, deadly nightshade and
other poisonous plants, creatures such as poisonous jellyfish,
scorpions, deadly snakes, sharks - and people who talk absolute nonsense.
Yours sincerely,
G.D.W. Smith (Professor), FRS.
Professor of Materials, Oxford University,
Department of Materials, Parks Road, Oxford
-------------------------------------------
********************************************************
To unsubscribe from SANET-MG:
1- Visit http://lists.sare.org/archives/sanet-mg.html to unsubscribe or;
2- Send a message to <listserv@sare.org> from the address subscribed to the list. Type "unsubscribe sanet-mg" in the body of the message.
Visit the SANET-MG archives at: http://lists.sare.org/archives/sanet-mg.html
For more information on grants and other resources available through the SARE program, please visit http://www.sare.org.