Research Article

Structure-Activity Relationship (SAR) and in vitro Predictions of Mutagenic and Carcinogenic Activities of Ixodicidal Ethyl-Carbamates

Table 4

Mutagenicity of carbamate LQM 919 towards Salmonella typhimurium TA98, TA100, TA1535, TA1537 and TA102 strain with or without S9 metabolic activation.

No. of his revertant colonies/plate (mean ± SD)
Concentration (mg/mL)TA98TA100TA1535TA1537TA102
-S9+S9-S9+S9-S9+S9-S9+S9-S9+S9

0 (-)18.5 ± 3.227.7 ± 2.5104.1 ± 10.8120 ± 99.1 ± 3.916.5 ± 1.99.1 ± 314.6 ± 3319.5 ± 75.7330 ± 66
0.116.3 ± 4.931 ± 6.2112 ± 20.7133.3 ± 10.510 ± 1.713.6 ± 1.510.6 ± 2.514 ± 5.2225 ± 26.5347.6 ± 41.5
0.220.3 ± 4.128.7 ± 7.1107.6 ± 15.8118.6 ± 4.56 ± 3.49.3 ± 2.04.3 ± 0.59.6 ± 2219.6 ± 5.8265 ± 13
0.416.3 ± 230 ± 7.5125.6 ± 19.489.6 ± 19.811 ± 2.611 ± 4.36.33 ± 3.29.3 ± 2118.3 ± 21.9250.3 ± 15.8
0.520.3 ± 4.532.3 ± 8.678 ± 2106.3 ± 16.84 ± 3.412 ± 34 ± 2.69.6 ± 1.580.6 ± 2.8101.6 ± 89.2
110 ± 5.225.6 ± 5.135 ± 22.928.3 ± 19.45 ± 16.6 ± 1.52 ± 26 ± 4.53.3 ± 5.70
Limit value:3755.4208.224018.23318.229.2639660
Positive controls:
2-NF2017 ± 460
Sodium azide1666 ± 99731 ± 77.2
Picrolonic acid48.33 ± 25.1
4-NQO1573 ± 61
2-AA1831 ± 1632277 ± 146765 ± 45441 ± 992050 ± 93

S9 = Microsomal fraction of liver of rats treated with phenobarbital and beta-naphthoflavone enriched with NADP and glucose-6-P; 2-NF =2-nitrofluorene; 4-NQO =4-nitroquinolido N-oxide; 2-AA =2-aminoanthracene.