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November 12, 2012

Revisiting the flawed GM corn study

by Taking Stock Contributor
sprague_rat

In September, many scientists were surprised to see a paper titled “Long term toxicity of a Roundup herbicide and a Roundup-tolerant genetically modified maize” published in the journal Food and Chemical Toxicology. Based on very weak scientific data, the paper’s authors claimed that genetically modified corn caused tumor growth in rats. Researchers in the field quickly pointed out that the data were flawed. The study had a very small control group and seemed to ignore the well-known biology of a common rat strain.

Now Food and Chemical Toxicology has begun publishing the many responses that came in. In their letters, researchers show exactly what was wrong with the study’s design and statistics. Several scientists add that the GM corn study also went against international standards for animal use in scientific research.

“I urge you to take adequate measures to keep the high standard quality of publications that come to your journal,” writes Lucia de Souza. “This paper as it is now, presents poor quality science and dubious ethics.”

Read the responses:

Panchin AY.  (2012). Toxicity of Roundup-tolerant genetically modified maize is not supported by statistical tests. Food and Chemical Toxicology  DOI: 10.1016/j.fct.2012.10.039

Cockburn A.  (2012). Letter to the editor. Food and Chemical Toxicology  DOI: 10.1016/j.fct.2012.10.040

Tribe D.  (2012). Letter to the editor. Food and Chemical Toxicology  DOI: 10.1016/j.fct.2012.10.042

Schorsch F. (2012). Serious inadequacies regarding the pathology data presented in the paper by Séralini et al. (2012). Food and Chemical Toxicology  DOI: 10.1016/j.fct.2012.10.043

Hammond B, Goldstein DA, Saltmiras D.  (2012). Letter to the editor. Food and Chemical Toxicology  DOI: 10.1016/j.fct.2012.10.044

Ollivier L.  (2012). A Comment on “Séralini, G.-E., et al. Long term toxicity of a Roundup herbicide and a Roundup-tolerant genetically modified maize. Food Chem. Toxicol. (2012).” Food and Chemical Toxicology  DOI: 10.1016/j.fct.2012.10.045

Tester M.  (2012). Letter to the editor. Food and Chemical Toxicology  DOI: 10.1016/j.fct.2012.10.046

Wager R, Lerayer A, Fedoroff N, Giddings V, Strauss SH, Leaver C, Shantharam S, Potrykus I, Fellous M, Burachik M, Jany KD, Trewavas A, Kameswara C, Prakash CS, Miller HI, Bradford K, Cetiner S, McHughen A, De Stefano-Beltrán L, Chassy BM, AlMomin S, Newell-McGloughlin M, Ammnann K, Herring RJ, de Souza L.  (2012). Letter to the editor. Food and Chemical Toxicology  DOI: 10.1016/j.fct.2012.10.047

Pilu R.  (2012). Letter to the editor. Food and Chemical Toxicology  DOI: 10.1016/j.fct.2012.10.048

Williams B.  (2012). Letter to the editor. Food and Chemical Toxicology  DOI: 10.1016/j.fct.2012.10.049

Trewavas  A.  (2012). Letter to the editor. Food and Chemical Toxicology  DOI: 10.1016/j.fct.2012.10.050

Grunewald B, Bury J.  (2012). Comment on ‘‘Long term toxicity of a Roundup herbicide and a 4 Roundup-tolerant genetically modified maize’’ by Séralini et al. Food and Chemical Toxicology  DOI: 10.1016/j.fct.2012.10.051

Berry C. (2012). Letter to the Editor. Food and Chemical Toxicology  DOI: 10.1016/j.fct.2012.10.053

Dung LT, Ham LY.  (2012). Comments on “Long term toxicity of a Roundup herbicide and a Roundup-tolerant genetically modified maize”. Food and Chemical Toxicology  DOI: 10.1016/j.fct.2012.10.054

Heinemann J.  (2012). Letter to the editor. Food and Chemical Toxicology  DOI: 10.1016/j.fct.2012.10.055

Langridge P.  (2012). Letter to the editor. Food and Chemical Toxicology  DOI: 10.1016/j.fct.2012.10.056

De Souza L.. (2012). Letter to the Editor. Food and Chemical Toxicology  DOI: 10.1016/j.fct.2012.10.057

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