In vivo cytogenetic effects of the cooked-food-related mutagens Trp-P-2 and IQ in mouse bone marrow.

Sister-chromatid exchange and chromosomal aberrations were measured in vivo in mouse bone marrow following intraperitoneal injection of the cooked food mutagens, Trp-P-2 and IQ. Trp-P-2 produced a significant positive dose response for both endpoints while IQ produced only a weak but significant sister-chromatid exchange response. The relative potency of these two chemicals is similar to that seen in mammalian cells in vitro but opposite to their potency in Salmonella.