Showing posts with label Genetically Modified Organisms. Show all posts
Showing posts with label Genetically Modified Organisms. Show all posts

Saturday, January 09, 2010

"Three Approved GMO's Linked to Organ Damage" -- the Serálini group returns

Repost from Truthout.org:
Three Approved GMO's Linked to Organ Damage

by: Rady Ananda, t r u t h o u t | Op-Ed

photo
(Photo: InertiaCreeps; Edited: Lance Page / t r u t h o u t)

In what is being described as the first ever and most comprehensive study of the effects of genetically modified foods on mammalian health, researchers have linked organ damage with consumption of Monsanto's GM maize.

All three varieties of GM corn - Mon 810, Mon 863 and NK 603 - were approved for consumption by US, European and several other national food safety authorities. Made public by European authorities in 2005, Monsanto's confidential raw data of its 2002 feeding trials on rats that these researchers analyzed is the same data, ironically, that was used to approve them in different parts of the world.

The Committee of Research and Information on Genetic Engineering (CRIIGEN) and Universities of Caen and Rouen studied Monsanto's 90-day feeding trials data of insecticide-producing Mon 810, Mon 863 and Roundup® herbicide absorbing NK 603 varieties of GM maize.

The data "clearly underlines adverse impacts on kidneys and liver, the dietary detoxifying organs, as well as different levels of damages to heart, adrenal glands, spleen and haematopoietic system," reported Gilles-Eric Séralini, a molecular biologist at the University of Caen.

Although different levels of adverse impact on vital organs were noticed between the three GMO's, the 2009 research shows specific effects associated with consumption of each GMO, differentiated by sex and dose.

Their December 2009 study appears in the International Journal of Biological Sciences (IJBS). This latest study conforms with a 2007 analysis by CRIIGEN on Mon 863, published in Environmental Contamination and Toxicology, using the same data.

Monsanto rejected the 2007 conclusions, stating:

"The analyses conducted by these authors are not consistent with what has been traditionally accepted for use by regulatory toxicologists for analysis of rat toxicology data."

[Also see Doull J, Gaylor D, Greim HA, et al. "Report of an expert panel on the reanalysis by Séralini et al. (2007) of a 90-day study conducted by Monsanto in support of the safety of a genetically modified corn variety (MON 863)." Food Chem Toxicol. 2007; 45:2073-2085.]

In an email to me, Séralini explained that their study goes beyond Monsanto's analysis by exploring the sex-differentiated health effects on mammals, which Doull, et al, ignored:

"Our study contradicts Monsanto conclusions because Monsanto systematically neglects significant health effects in mammals that are different in males and females eating GMO's, or not proportional to the dose. This is a very serious mistake, dramatic for public health. This is the major conclusion revealed by our work, the only careful reanalysis of Monsanto crude statistical data."

Other Problems With Monsanto's Conclusions

When testing for drug or pesticide safety, the standard protocol is to use three mammalian species. The subject studies only used rats, yet won GMO approval in more than a dozen nations.

Chronic problems are rarely discovered in 90 days; most often such tests run for up to two years. Tests "lasting longer than three months give more chances to reveal metabolic, nervous, immune, hormonal or cancer diseases," wrote Seralini, et al, in their Doull rebuttal. [See "How Subchronic and Chronic Health Effects Can Be Neglected for GMO's, Pesticides or Chemicals." IJBS; 2009; 5(5):438-443.]

Further, Monsanto's analysis compared unrelated feeding groups, muddying the results. The June 2009 rebuttal explains, "In order to isolate the effect of the GM transformation process from other variables, it is only valid to compare the GMO … with its isogenic non-GM equivalent."

The researchers conclude that the raw data from all three GMO studies reveal novel pesticide residues will be present in food and feed and may pose grave health risks to those consuming them.

They have called for "an immediate ban on the import and cultivation of these GMO's and strongly recommend additional long-term (up to two years) and multi-generational animal feeding studies on at least three species to provide true scientifically valid data on the acute and chronic toxic effects of GM crops, feed and foods."

Human health, of course, is of primary import to us, but ecological effects are also in play. Ninety-nine percent of GMO crops either tolerate or produce insecticide. This may be the reason we see bee colony collapse disorder and massive butterfly deaths. If GMO's are wiping out Earth's pollinators, they are far more disastrous than the threat they pose to humans and other mammals.

Further Reading:

Health Risks of GM Foods, Jeffrey M. Smith.

Failure to Yield: Evaluating the Performance of Genetically Engineered Crops, Union of Concerned Scientists.

Impacts of Genetically Engineered Crops on Pesticide Use: The First Thirteen Years, The Organic Center.

Saturday, December 05, 2009

Reasonable words on GM Foods

I'm rather skeptical of genetically modified foods myself, both on grounds of safety and efficacy in addressing hunger (and I realize these are heavily contested points and I'm just not going to venture back into them now), but an article at The Guardian maintains that the new synthesis is in, and it's one I largely agree with:
On Wednesday night a debate on GMOs at the illustrious Royal Society of Chemistry HQ in London suggested a breakthrough. Afterwards the feeling was that it was a win on points for the GM sceptics... But [GM proponents] can take heart: the debate was less a defeat for GM than for the way it has developed. The corollary is that if the government really believes that the only way to increase yields is through GM technology, it will have to fund this itself.

The winning argument on Wednesday was not really about science at all, but about the ethics of a method of increasing yields that delivers such power into the hands of the multinationals... GM may be a small part of the answer. But it has a mixed record in Asia, where it has tended to enrich the rich and impoverish the poor, and it is unlikely to be any part of the answer to food security in Africa for the foreseeable future. As the UN's Food and Agriculture Organisation pointed out last year, there is enough food for everyone. It just isn't available in the right places... globally the need is for publicly funded science to investigate sustainable agriculture in the widest possible meaning of the word: better farming practices, a viable pricing system and, for the global north, a radical change in patterns of consumption.


The "consensus position" (of three or four people I've talked with) is that a reasonable position genetic modification includes a much larger public sector involvement and relative decrease in blockages from Intellectual Property Regimes (if not directly challenging established patents, then developing GM products in the public domain via universities and government funding; many have pointed out that whatever the pluses and minuses of the "first" Green Revolution, a key component of it was the public rather than proprietary nature of a significant portion of its technologies), AND most (of the three or four I've had an extended discussion with) agree as well that large-scale public epidemiology trials should be conducted. GM proponents often proclaim that it's the most widely tested, heavily regulated technology, yet there have been no systematic human feeding trials that I've ever heard of, and certainly no longitudinal ones. Since we're already eating them anyway, seems to me it only makes sense to do large-scale trials taking some people "off" GMs to the extent possible (this would pose a challenge but could be done in part using organic foods) and comparing to a paired sample of people maintaining a GM-diet (not hard since most corn and soybean in the US is already GM). Such trials would be complicated, but there seems little reasonable rationale for not doing them, and doing them would begin to settle much between proponents and opponents (not all, not by half, but much, and would be a substantial improvement on the status quo).

Of course, the thing about the consensus over making GMs:
a) publicly funded/public domain
b) widely, openly and long-term tested
is that it seems quite unlikely to happen, whatever we agree to. GM companies and most governments have no intention of vigorously supporting either position... making articles like that in the Guardian all the more important. If all those of good intent can agree on these two propositions (or something like them) and bridge the divide between people legitimately concerned with hunger and justice but with different evaluations of GM, we can force the hand of governments and companies. Arguing between ourselves has produced more heat than light; hopefully the event reported by the Guardian can be the foundation of a new direction?*




*Rather reminds me of an article a friend recently posted: Let's All Agree: Factory Farming is the Real Evil, Not Vegans. Which I can rather agree to, if one adds the corollary that "factory farms are the enemy, not meat-eaters. Even unconscientious meat-eaters aren't the enemy; we don't want to wipe them out, we want to convince them. Vegan/vegetarianism is threatening and foreign to many people, and trying to shock and shame them into better behavior seems to more commonly generate anger than conversion. Surely, vegans have as much a responsibility as small-farm omnivores to promote co-operation and reasonable discourse, and all of us have a responsibility to convince others. In looking to do so, we should evaluate what's most effective, not necessarily what seems most morally satisfying, most extreme, or most attention-getting. All of those have a time and a place, but it's not always the time and place for all of them. I don't read a lot of vegan writing, but it seems to me there's responsibility on both sides for toning down rhetoric and looking to work together against factory farming, rather than against each other. (Especially because I think consumer activism is severely limited and mainly symbolic by itself, without political agitation and structural change, anyway.)

Thursday, September 03, 2009

*Addendum to previous post (Genetically modified Crops: Critics of the GM Critics Gone Wild?)

(*&#@(*$&)@#%!

I'd already half typed this out and then accidentally deleted form the copy'n'paste clipboard... argh.

Ok.

Let's give it another go...

----begin digression----
*One may ask how this fits with my and others generalized critique of corporations, especially as relates to their role in food and GM crops. That is, you could fairly argue that I tend to paint them with a broad brush, rather categorically. Firstly, I wouldn't really consider corporations a "side" the same way I consider "pro-GM" as a "side." Corporations are not equivalent to a point of view, and my point was that you can't (or shouldn't) dispute a point by dismissing everyone advocating that point as cynically motivated. Corporations are far from everyone advocating GMs; you have food activists, university researchers and even researchers within ag. corporations who cannot be uniformly assumed to be irrational or motivated by, say, greed over the welfare of others. (Of course, I don't really accuse corporations of being irrational in their pursuit of objectives I think are often detestable, or at least questionable.) Indeed, I have friends and colleagues who believe in the potential and need for genetic modification, and I don't presume that they are irrational, motivated by greed or other ulterior motives, or anything but, in most cases, genuine concern for others and an intellectual belief in the need/utility of GM crops. This is more what I was referring to. One shouldn't, of course, categorically dismiss *groups* OR *sides*, but besides pointing out that corporations aren't, to my mind, a proper "group" in this sense (in that they're made up of people with a wide diversity of opinions, even some that dispute the primary positions of their own company) and insofar as they are a group, they're a group that as a matter of record and fact are committed to profits and not to social welfare; when the two conflict, they have and do argue that the former must come before or even at the expense of the latter due to the rules of their constitution and "personhood." This is a topic for another time, but is a primary component of what I see as problematic with corporations.
---------end digression-----------

Genetically modified Crops: Critics of the GM Critics Gone Wild?

See this story in Nature on the backlash against an article published finding that
"...[caddis-fly larvae] fed only on Bt maize debris grew half as fast as those that ate debris from conventional maize. And caddis flies fed high concentrations of Bt maize pollen died at more than twice the rate of caddis flies fed non-_Bt pollen. The transgenic maize "may have negative effects on the biota of streams in agricultural areas" the group wrote in its paper, stating in the abstract that "widespread planting of Bt crops has unexpected ecosystem-scale consequences.""


I've said much on GM before, but as far as this article about the swift and forceful critical attacks--as attacks they can be described, when the scientists are charged of scientific misconduct by critics, as we were in an article on organic agriculture, when most would admit that the "misconduct" is usually, at most, from strident but perhaps valid disagreement on wording or analytical approach, my challenge to the types critiquing the GM crop critiques is:

1) Find studies that *find negative effects from GM crops* that you feel are well-conducted. The probability that all studies that critique/find negative effects of GM are poorly done is exceedingly low.
2) If you actually feel all the research finding negative effects are poorly done, for the sake of science and balanced analysis, point out how this is similar/dissimilar to problems in "pro"-GM articles. That is, while it's unlikely all "anti"-GM science is badly done, the probability that all of them are badly done and all of the studies supporting GM are well done (back of the envelope calculations here...) zero point zero percent. A synthesis of the methodological flaws in each body of literature would be far more helpful than systematically decrying all articles with contrary findings and pointing to all positive findings.

In essence, it would be nice for those advocating GM to stop pretending all the evidence against it is bunk, bad science, or politically motivated. The feeling that those opposing GM accuse you of the same is not an excuse, especially considering the attitude in the Nature article of some critics that "That's just science." Accusing people of intentional misconduct is not an everyday reaction, or it shouldn't be, and anyone categorically insisting that their side is rational and the other sides aren't (or otherwise assumes bad faith on an entire side of a discussion and not on the others*) shouldn't really be listened to.

Thursday, August 27, 2009

Starving during surplus; surplus of starving

Another bit here reinforcing the importance poverty/lack of socio-economic power in causing hunger and malnutrition (a topic J recently got in an extended discussion with J-friend NP; to be re-posted here eventually).

Quoting Ms. Nierenberg of the WorldWatch Institute,
One of the most interesting things Thurow explained was how the success of African farmers became their failure-in 2001, the Ethiopian harvest was the best most farmers had ever seen. They had record yields and had more food than ever to feed their families, as well as to bring to market. But that surplus caused prices to collapse more than 80 percent. Farmers couldn’t pay their debts and they cut back their expenses the next season-they planted less, they used less inputs like fertilizers and hybrid seeds, and planted just enough to (hopefully) feed their families. When the famine hit hard in2002-2003 , the same farmers, write Thurow and Kilman, who had carried their surplus grain to market the season before, were now carrying their malnourished and starving children to food aid centers. And at the same time, Ethiopian grain traders had warehouses packed to the ceiling with surplus food because foreign aid agencies were buying foreign-mostly U.S. grain-instead of from local suppliers. As a result, while millions of people in Ethiopia went hungry, more than 300,000 tonnes of grain rotted either in fields or in storage.


This is rather similar to a story that was formational in the J-career related to food issues, from a 2002 NYT story, Poor in India Starve as Surplus Wheat Rots (original article is here, but I wanted to make sure readers weren't blocked by a possible NYT subscription wall). Not to pick another debate with NP, but these articles reinforce the pivotal role of poverty/lack of political power in hunger, as in both cases, there are surpluses that are going to waste rather than feeding people (although the details seem reversed, with farmers getting high, possibly inflated prices in one circumstance but underpaid in another, although J highly suspects that the farmers benefitting in India in 2002 were primarily large farmers). Fortification or yield increases or self-generation of pesticides (through genetic modification or other means) would none of them address the problems of hunger confronting the millions of people in these cases, because neither production nor nutrient content were the problem. (The argument with NP to be reprinted here revolved somewhat over Golden Rice (yes, again); one of his points was the fact that it might not solve "the" problem is not a reason it can't solve "a" problem; we'll leave it here by saying that is at least plausibly true, even if I think it to not be the case in the overwhelming majority of the time that genetic modification can solve hunger problems when market/governance problems are at root in the examples given, so even granting his point it appears like it may not be generally applicable solution, beyond potential safety and health problems J sees with GMOs... BID (but i digress)). One certainly can't make the point that production could have a secondary positive effect by lowering food prices in the Ethiopia case as in that case, low food prices (and a reliance on agricultural sales rather than self-sufficiency) contributed to hunger via farmer poverty; in the Indian case it appeared that the government was controlling the distribution of surpluses based on international and domestic political pressures, so price and supply themselves weren't necessarily prime factors there either.

BONUS J
Great quote from J-friend JCR, in response to a quote from another J-friend (""Americans are a stupid people by and large--we pretty much believe whatever we’re told.” -- Det. Norris, Baltimore PD, "The Wire"):
We have a very long history of mistrusting the government and believing in the importance of the individual over the community. We're steeped in it, and we don't often question it. This fundamental attitude is easy to manipulate, so that health care for everyone is bad (because you need more government investment to do it), while tax cuts for the rich are good (on the assumption that someone who is rich got that way by individual merit).

We're no lazier or dumber than the rest of the world, but our basic beliefs don't serve us as well as they could.


For the record, JCR partly credits this blog post by Frank Schaeffer for what he calls a not "completely original" sentiment. (Of course he's right; "There's nothing new under the sun", but then again, genius is, in a way, saying what others have thought but perhaps did not realize: "In every work of genius we recognize our own rejected thoughts; they come back to us with a certain alienated majesty.")

Saturday, August 18, 2007

A largely "Untranslated" quickie on Genetically Modified Foods

Doing research for redrafting a paper/thesis chapter, I came across at least one recent study where genetically modified foods were fed to animals and then statistically tested to see how the animals reacted vs. a variety of other diets. They in fact used Monsanto's own data, released apparently 2 years ago under lawsuit in Europe (did anyone hear about this? I faintly recall something like that, you'd think it might've resurfaced in the news at some point).

So, the re-analysis found several abnormalities in GM-fed rats, especially in weight (lower in GM-fed rat males, higher in GM-fed rat females), and initial signs of damage to detoxifying organs (kidneys, liver). I read it quickly, it didn't seem that they used a statistical test to screen out the fact that when you do hundreds of stats on something, so number will be significant by chance -- I think there is a repeated measure test one can do. Any road, this is not my forté (stats) and I'll be returned to read this and similar studies more deeply, but this is the type of study we HAVEN'T much conducted on GM foods, on the "If it quacks like a duck" theory. ("If this GM duck quacks like a duck, then we can treat it like a duck, and assume it's safe to eat.") Of course, as I commented in an earlier post, I personally don't think our chemical understanding of proteins et al. is good enough to actually determine such "substantial equivalence," and it would seem reasonable to require animal testing as we do for drugs, what hey? (Drugs, pesticides, cosmetics -- but not food?) Clearly, I think this study needs to be followed up on, in exactly the way people aren't these days: animal studies and similar epidemiology, not dissolving GM food in a tube and analyzing its chemical content, when it's not even clear we'd understand pertinent differences if we found them (i.e. the extreme difficulties in determining protein three dimensional structure, which is at least as important as any other chemical characteristic in determining its effects, if not more so.)

Abstract of the paper for those without academic library access (reprinted here under a fair use assumption):
Archives of Environmental Contamination and Toxicology
© Springer Science+Business Media, LLC 2007
10.1007/s00244-006-0149-5
New Analysis of a Rat Feeding Study with a Genetically Modified Maize Reveals Signs of Hepatorenal Toxicity

Gilles-Eric Séralini1, 2 Contact Information, Dominique Cellier1, 3 and Joël Spiroux de Vendomois1
(1) Committee for Independent Information and Research on Genetic Engineering CRIIGEN, Paris, France
(2) Laboratory of Biochemistry, Institute of Biology, University of Caen, Caen, France
(3) Laboratory LITIS, University of Rouen, Mont-Saint-Aignan, France

Contact Information Gilles-Eric Séralini
Email: criigen@unicaen.fr

Received: 18 July 2006 Accepted: 20 November 2006 Published online: 13 March 2007
Abstract Health risk assessment of genetically modified organisms (GMOs) cultivated for food or feed is under debate throughout the world, and very little data have been published on mid- or long-term toxicological studies with mammals. One of these studies performed under the responsibility of Monsanto Company with a transgenic corn MON863 has been subjected to questions from regulatory reviewers in Europe, where it was finally approved in 2005. This necessitated a new assessment of kidney pathological findings, and the results remained controversial. An Appeal Court action in Germany (Münster) allowed public access in June 2005 to all the crude data from this 90-day rat-feeding study. We independently re-analyzed these data. Appropriate statistics were added, such as a multivariate analysis of the growth curves, and for biochemical parameters comparisons between GMO-treated rats and the controls fed with an equivalent normal diet, and separately with six reference diets with different compositions. We observed that after the consumption of MON863, rats showed slight but dose-related significant variations in growth for both sexes, resulting in 3.3% decrease in weight for males and 3.7% increase for females. Chemistry measurements reveal signs of hepatorenal toxicity, marked also by differential sensitivities in males and females. Triglycerides increased by 24–40% in females (either at week 14, dose 11% or at week 5, dose 33%, respectively); urine phosphorus and sodium excretions diminished in males by 31–35% (week 14, dose 33%) for the most important results significantly linked to the treatment in comparison to seven diets tested. Longer experiments are essential in order to indicate the real nature and extent of the possible pathology; with the present data it cannot be concluded that GM corn MON863 is a safe product.