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|Title:||Transferability and inter-laboratory variability assessment of the in vitro bovine oocyte maturation (IVM) test within ReProTect|
|Authors:||LUCIANO Alberto; FRANCIOSI Federica; LODDE Valentina; CORBANI Davide; LAZZARI Giovanna; CROTTI Gabriella; GALLI Cesare; PELLIZZER Cristian; BREMER Susanne; MARC Weimer; MODINA Silvia|
|Citation:||REPRODUCTIVE TOXICOLOGY vol. 30 no. 1 p. 81-88|
|Publisher:||PERGAMON-ELSEVIER SCIENCE LTD|
|Type:||Articles in periodicals and books|
|Abstract:||The new European chemicals policy for the Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) will most probably impose a dramatic increase in the number of animals required for reproductive toxicity testing. For this purpose, the development and validation of alternative methods is urgently needed in order to reduce the use of laboratory animals. The present study describes the inter-laboratory variability and the transferability assessment of an in vitro test able to identify chemical effects during the process of oocyte maturation in a bovine model. The test was developed/optimised within ReProTect, an integrated research project funded by the European Union, joining together 35 partners with complementary expertise in reproductive toxicology. Eight chemicals with well-known toxic properties were tested (Benzo[a]pyrene, Busulfan, Cadmium Chloride, Cycloheximide, Diethylstilbestrol, Ketoconazole, Methylacetoacetate, Mifepristone/RU-486 and DMSO as solvent) on the in vitro maturation (IVM) assay in two well-trained laboratories using the established Standard Operating Procedures. The statistical analysis demonstrated the concordance of results across the laboratories and the reproducibility of the test. We therefore conclude that the IVM test could advance toward the process of validation as alternative in vitro method that, in combination with additional in vitro tests, can become part of an integrated testing strategy in order to predict chemical hazards on mammalian fertility.|
|JRC Institute:||Institute for Health and Consumer Protection|
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