简介:AIMDevelopmentaltoxicitytestingtocurrentinternationalguidelinesinvolvesexposureofpregnantanimals,mostlyratsandrabbits,andsubsequentassessmentoftoxiceffectsintheirfetuses.Alternativemethodshavebeendevelopedsince1980s.Themostcomplexassaysinthisareamakedistinctiveandextensiveuseofisolatedpostimplantationrodentembryoswhichareculturedinvitroduringthephaseofmajororganogenesis.Theobjectiveofthisstudyistoestablishaninvitroembryotoxicitytest----basedonpostimplatation9.5dwholeembryoculture(WEC)and3T3celltoxicity.Thepossibilitiesfortheirapplicationasembryotoxicityscreenshavebeeninvestigated.