I’m a native Midwesterner, whose family operates a farm, and a board-certified toxicologist. I have a PhD in Pharmacology, and I have been involved in various aspects of protein science and safety research since 1996 with an emphasis in Toxicology since 2006.
Michael Koch, PhD, DABT
From this Expert
Q: If critics claim Seralinis well known study is flawed for having used the Sprague Dawley rat, doesnt that make Monsantos two year carcinogenicity studies using the same SD rat, flawed as well? Im confused about what seems to be a double standard?
Posted On: Saturday, 1/25/2014 11:36 am
Answered By: Michael Koch, PhD, DABT, New Technologies in Toxicology Lead, Monsanto, Company, Friday, 3/14/2014 2:51 pm
A: The simple answer is: The criticism of Séralini’s use of rats is not about the fact that they were Sprague Dawley (SD) rats. It is that the number of SD rats he used was not appropriate to draw the conclusions he did. SD rats are acceptable to use in carcinogenicity tests as long as the experiment is designed to account for the fact that SD rats are known to have a high rate of certain spontaneous diseases (e.g., mammary tumors) (Brix et al., 2005). The more technical explanation is:... Continue Reading
Q: Why EU plans 2-year carcinogenicity study on NK603 maize? Are details of the feed trial same to Gilles-Eric Séralini's research? Thanks a lot.
Posted On: Sunday, 10/06/2013 12:11 am
Answered By: Michael Koch, PhD, DABT, New Technologies in Toxicology Lead, Monsanto, Company, Tuesday, 1/14/2014 9:36 pm
A: It is difficult, at best, to understand the EU’s rationale for funding any long term feeding studies with GM crops. Presumably, it is because of political pressure created by the sensationalistic media coverage of the feeding trial you’ve referenced. To be clear, this rationale is not scientific because teams of international scientists and regulatory agencies have concluded the Seralini study was not credible, and that it had serious flaws in design and interpretation. Given the serious... Continue Reading
Q: How long was Monsanto's study of GMOs, before they were "deemed" safe? How long was the longest study?
Posted On: Tuesday, 8/20/2013 7:18 pm
Answered By: Michael Koch, PhD, DABT, New Technologies in Toxicology Lead, Monsanto, Company, Wednesday, 5/28/2014 6:49 pm
A: It appears the first question is referring to how long it takes to demonstrate the safety of GM crops. It is important to emphasize for clarity that GM crop developers like Monsanto do not “deem” GMOs to be as safe as conventional crops, this determination is made by the hundreds of scientists in the regulatory agencies around the world that review the safety data generated. However, it is a requirement for GM crop developers to demonstrate, or evaluate, the safety of these products; a... Continue Reading
Q: What does GMOAnwers have to say about the fact that results from scientist lab research has shown cancers and sterility in rats in only three generations of breeding, while being fed GMO food as their main diet. Also why is it that the scientist...
Posted On: Friday, 8/02/2013 12:23 pm
Answered By: Michael Koch, PhD, DABT, New Technologies in Toxicology Lead, Monsanto, Company, Friday, 4/11/2014 6:28 pm
A: First, your question appears to refer to one or more studies that have been retracted from, or never formally published in, a peer-reviewed scientific journal. If you are unfamiliar, retraction is the process by which scientific papers are officially withdrawn from the public record. According to Retraction Guidelines published by the Committee on Publication Ethics: “Journal editors should consider retracting a publication if:they have clear evidence that the findings are unreliable... Continue Reading
Q: The bT toxin has been found widely in nature, and, thanks to Monsanto, is now found widely in humans, I have assumed that the extra porosity it causes in the intestine is good for increasing the absorbtion of the supplements we take in an attempt...
Posted On: Monday, 7/29/2013 11:05 pm
Answered By: Michael Koch, PhD, DABT, New Technologies in Toxicology Lead, Monsanto, Company, Tuesday, 10/22/2013 2:38 pm
A: First, some background on Bt toxins before I answer your question directly. The Bt toxin is so named because it comes from the bacterium Bacillus thuringiensis. Farmers have used spray formulations of this bacterium on their crops since the 1920s as a means to control certain insect pests. It has been widely used in the Americas, Europe and Asia, and it is one of the pesticides allowed for use in organic farming. In determining the safety of Bt proteins, it is... Continue Reading
No Studies were Found.