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Xenopus Embryonic Thyroid Assay in co-operation with Laboratoire Watchfrog

31st July 2019

Amphibian metamorphosis is controlled by thyroid hormones and is associated with TH/bZIP gene expression. This process can be made visible through use of the "Green Fluorescent Protein" (GFP); exhibiting bright green fluorescence under TH/bZIP gene expression.

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Revision of the Fish Acute Toxicity Testing Guideline OECD 203

25th June 2019

The revised guideline describes how to perform acute toxicity tests with fish in more detail, for example the use of alternative methods for testing and range-finding and demands on analytics as well as statistical analysis.

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