Study Attribute | Value |
---|---|
CEBS Accession Number: | 002-02981-0001-0000-3 |
Chemical Name: | Trisodium ethylenediaminetetraacetate trihydrate (EDTA) |
CASRN: | 150-38-9 |
NTP Study Type: | Genetic Toxicology - Mammalian Cell Cytogenetics |
NTP Study ID: | 215387_SCE |
Study Result: | Negative |
Activation | Trial | Trial Call |
---|---|---|
No Activation | 1 | Negative |
No Activation | 2 | Negative |
Induced Rat Liver S9 | 1_S9 | Negative |
Dose µg/mL | Number Cells Examined | Number Chromosomes Examined | Total Number SCEs | SCE / Chromosome | SCE / Cell | Hours in BRDU | % Increase Over Solvent Control | ||
---|---|---|---|---|---|---|---|---|---|
Vehicle Control | Dimethyl Sulfoxide | 0 | 50 | 1044 | 497 | 0.476 | 9.94 | 26.5 | 0.000 |
Test Chemical | Trisodium ethylenediaminetetraacetate trihydrate (EDTA) | 5 | 50 | 1032 | 516 | 0.500 | 10.32 | 26.5 | 5.030 |
16 | 50 | 1043 | 486 | 0.466 | 9.72 | 26.5 | -2.120 | ||
50 | 50 | 1046 | 487 | 0.466 | 9.74 | 26.5 | -2.199 | ||
100 | 50 | 1041 | 469 | 0.451 | 9.38 | 26.5 | -5.362 | ||
Positive Control | Mitomycin-C | 0.001 | 50 | 1049 | 711 | 0.678 | 14.22 | 26.5 | 42.376 |
Mitomycin-C | 0.005 | 10 | 212 | 406 | 1.915 | 40.60 | 26.5 | 302.285 | |
Trend: | -1.265 | ||||||||
Probability: | 0.897 |
Dose µg/mL | Number Cells Examined | Number Chromosomes Examined | Total Number SCEs | SCE / Chromosome | SCE / Cell | Hours in BRDU | % Increase Over Solvent Control | ||
---|---|---|---|---|---|---|---|---|---|
Vehicle Control | Dimethyl Sulfoxide | 0 | 50 | 1034 | 408 | 0.395 | 8.16 | 27.0 | 0.000 |
Test Chemical | Trisodium ethylenediaminetetraacetate trihydrate (EDTA) | 5 | 50 | 1040 | 407 | 0.391 | 8.14 | 27.0 | -0.821 |
16 | 50 | 1047 | 488 | 0.466 | 9.76 | 27.0 | 18.123 | ||
50 | 50 | 1040 | 454 | 0.437 | 9.08 | 27.0 | 10.633 | ||
100 | 50 | 1034 | 438 | 0.424 | 8.76 | 27.0 | 7.353 | ||
Positive Control | Mitomycin-C | 0.001 | 50 | 1039 | 630 | 0.606 | 12.60 | 27.0 | 53.669 |
Mitomycin-C | 0.005 | 10 | 210 | 273 | 1.300 | 27.30 | 27.0 | 229.461 | |
Trend: | 1.740 | ||||||||
Probability: | 0.041 |
Dose µg/mL | Number Cells Examined | Number Chromosomes Examined | Total Number SCEs | SCE / Chromosome | SCE / Cell | Hours in BRDU | % Increase Over Solvent Control | ||
---|---|---|---|---|---|---|---|---|---|
Vehicle Control | Dimethyl Sulfoxide | 0 | 50 | 1048 | 464 | 0.443 | 9.28 | 26.5 | 0.000 |
Test Chemical | Trisodium ethylenediaminetetraacetate trihydrate (EDTA) | 5 | 50 | 1048 | 516 | 0.492 | 10.32 | 26.5 | 11.207 |
16 | 50 | 1047 | 472 | 0.451 | 9.44 | 26.5 | 1.821 | ||
50 | 50 | 1049 | 489 | 0.466 | 9.78 | 26.5 | 5.287 | ||
100 | 50 | 1050 | 486 | 0.463 | 9.72 | 26.5 | 4.542 | ||
Positive Control | Cyclophosphamide | 0.3 | 50 | 1045 | 574 | 0.549 | 11.48 | 26.5 | 24.062 |
Trend: | 0.189 | ||||||||
Probability: | 0.425 |