German Animal Welfare Federation Animal Welfare Academy

Neubiberg, Germany

German Animal Welfare Federation Animal Welfare Academy

Neubiberg, Germany
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Engelke M.,University of Bremen | Zorn-Kruppa M.,University of Hamburg | Gabel D.,University of Bremen | Reisinger K.,Henkel AG | And 2 more authors.
Toxicology in Vitro | Year: 2012

We have developed a 3-dimensional human hemi-cornea which comprises an immortalized epithelial cell line and keratocytes embedded in a collagen stroma. In the present study, we have used MTT reduction of the whole tissue to clarify whether the production of this complex 3-D-model is transferable into other laboratories and whether these tissues can be constructed reproducibly. Our results demonstrate the reproducible production of the hemi-cornea model according to standard operation procedures using 15 independent batches of reconstructed hemi-cornea models in two independent laboratories each. Furthermore, the hemi-cornea tissues have been treated with 20 chemicals of different eye-irritating potential under blind conditions to assess the performance and limitations of our test system comparing three different prediction models. The most suitable prediction model revealed an overall in vitro-in vivo concordance of 80% and 70% in the participating laboratories, respectively, and an inter-laboratory concordance of 80%. Sensitivity of the test was 77% and specificity was between 57% and 86% to discriminate classified from non-classified chemicals. We conclude that additional physiologically relevant endpoints in both epithelium and stroma have to be developed for the reliable prediction of all GHS classes of eye irritation in one stand alone test system. © 2012 Elsevier Ltd. All rights reserved.


Ruhdel I.,German Animal Welfare Federation Animal Welfare Academy | Maisack C.,German Judicial Association for Animal Welfare Law | Wagner K.,German Animal Welfare Federation Animal Welfare Academy
Altex | Year: 2014

The German Federal Administrative Court recently announced an order (finalized on January 20, 2014) on the neurobiological experiments on primate brains of Prof. Kreiter at the University of Bremen. With this order, a preceding court decision by the Higher Administrative Court of Bremen was established as final and absolute and the last glimmer of hope to end the suffering of the primates in Bremen was extinguished. The court decision had claimed the experiments to be ethically justified. The Federal Administrative Court upheld the court decision and issued the order on the grounds that due to the phrasing of both the former and the current German Animal Welfare Act, authorities had no entitlement to assess the ethical justification of an experiment, but were obliged to approve an application if all formalities were complied with. The impact the order will have on the authorization of animal experiments and testing in Germany caused an outrage in the animal welfare community.

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