the mutagenic response in s. typhimurium strains ( ta1535 , ta98 , ta100 , ta102 ) and the levels of enzyme activities , responsible for nadp+ or gssg reduction and for the utilization of nadph or gsh in rat liver s-9 fractions , were investigated following in vitro preincubation of nac with four direct-acting mutagens and six procarcinogens .
C0061516
gssg
C0017817
gsh