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Recent publications on the automated in vitro micronucleus assay show predictive values higher than 85% for the classification of in vitro aneugens, clastogens and non-genotoxic compounds. In the present work, the CHO-k1 micronucleus assay in combination with cellular imaging was further evaluated. Firstly, the effect of a range of S9 concentrations on micronucleus formation and cytotoxicity was investigated...
2,4-Dichlorophenoxyacetic acid (2,4-D) is a selective, systemic auxin-type herbicide extensively used throughout the world. The present research was aimed at studying effects of low and non-cytotoxic concentrations of 2,4-D on SHE cells in relation with carcinogenicity. Effects were studied on Syrian hamster morphological cell transformation, c-Myc expression – both at the gene and protein level –...
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