at dose levels of 100 , 200 and 300 micrograms/ml of medium , erythrosine was non-mutagenic to v79 cells at the hypoxanthine-guanine phosphoribosyl transferase ( hgprt ) and sodium , potassium atpase ( na+ , k+ -atpase ) gene loci and did not increase the frequency of sister-chromatid exchanges with or without rat hepatocyte-mediated activation .
C0007634
cells
C0037211
sister-chromatid exchanges