header-01-mais.jpg

header-lab-02.jpg

europa    seventh

Scientific information used in GMO risk assessment often is difficult to access for external experts as well as for stakeholders. This was and still is particularly true for whole-food toxicity studies conducted in the course of GM food/feed risk assessment and also applies to scientific literature. The lack of detailed information available has impaired the discussions, inspired speculations and effectively hampered progress in the scientific debate.

 

G-TwYST will therefore make accessible the detailed scientific information including raw data via the open access database CADIMA set up by the FP7 project GRACE. The Federal Ministry of Food, Agriculture and Consumer Protection in Germany supports the maintenance of this open access database that enables the integration of data from all feeding studies conducted troughout G-TwYST, GRACE and GMO90+ beyond the lifetime of the Project.

Latest news

Go to news >

1-year feeding study with MON810 on ARTE

In October 2016 ARTE broadcasted "OGM - Mensonges et vérités" (GMOs - Lies and truths) on French and German Television. In this 100 minutes long documentary Frédéric Castaignède sheds light on genetically modified crops, the impact on farmers, biodiversity and human health. We have selected and translated a fragment in which G-TwYST project leader Prof Pablo Steinberg presents the results of the 1-year feeding study with MON810 maize in the GRACE project.

 

The documentary provides a ‘snapshot’ of the GRACE final Conference which took place on November 9-10 2015 in Potsdam, Germany. We refer to videos on the GRACE Youtube channel  for a full account.

 

Paper published describing the statistical approach for equivalence testing in G-TwYST

An open access paper describing the statistical approach for equivalence testing in G-TwYST has now been published in Food and Chemical Toxicology. The method was tested on data from the GRACE project, as described in this paper. We will now progress by applying the method in the statistical analyses of the G-TwYST feeding trials, to be reported first in the statistical reports as project deliverables.

Highlights

  • An equivalence testing method is proposed to assess the safety of regulated products
  • We combine data from a current study with test and control, and historical studies with assumedly safe reference products
  • The method is illustrated with animal feeding studies using genetically modified and reference maize varieties
  • A high statistical power of the equivalence test is the basis for the equivalence criterion
  • Generalized fiducial inference is used to integrate uncertainties from the historical and the current data

 

van der Voet H, Goedhart PW, Schmidt K (2017). Equivalence testing using existing reference data:  an example with genetically modified and conventional crops in animal feeding studies. Food and Chemical Toxicology, 109: 472-485. https://doi.org/10.1016/j.fct.2017.09.044

G-TwYST Interim Report available

15 February 2017

 

The G-TwSYT team completed a publicly available Interim report with information about the progress that has been made in the first 1.5 years of the project. The report can be downloaded here.