Table 4.
Group | Experiment Duration | |||
---|---|---|---|---|
3 Months | 10 Months | 17 Months | 24 Months | |
MMP-1 (ng/mL) | ||||
Control | 12.94 ± 0.223 | 12.20 ± 0.196 | 14.58 ± 0.410 | 15.66 ± 0.563 |
AE | 13.18 ± 0.481 | 12.14 ± 0.171 | 14.12 ± 0.349 | 16.39 ± 1.128 |
Cd1 | 12.21 ± 0.455 | 12.50 ± 0.141 | 16.04 ± 0.564 * | 14.91 ± 0.626 ** |
Cd1 + AE | 12.11 ± 0.737 | 11.57 ± 0.533 | 14.53 ± 0.404 † | 15.29 ± 0.841 |
Cd5 | 12.95 ± 0.229 | 10.85 ± 0.501 | 16.35 ± 0.351 **,‡ | 18.54 ± 0.370 **,## |
Cd5 + AE | 12.58 ± 0.197 | 12.09 ± 0.282 | 14.27 ± 0.504 †† | 15.38 ± 0.355 †† |
MMP-2 (ng/mL) | ||||
Control | 10.36 ± 0.452 | 8.368 ± 0.372 | 11.89 ± 0.486 | 11.25 ± 0.363 |
AE | 12.81 ± 0.654 | 9.088 ± 0.579 | 15.36 ± 1.098 | 12.59 ± 0.764 |
Cd1 | 10.96 ± 0.663 | 10.07 ± 0.572 | 15.38 ± 0.590 | 15.77 ± 0.725 ** |
Cd1 + AE | 13.03 ± 0.513 | 9.698 ± 1.1391 | 14.17 ± 0.558 | 13.16 ± 0.679 |
Cd5 | 11.43 ± 0.646 | 10.48 ± 0.409 | 23.43 ± 1.841 ***,## | 16.31 ± 0.561 *** |
Cd5 + AE | 11.15 ± 1.027 | 8.704 ± 0.645 | 12.56 ± 1.071 ††† | 10.81 ± 0.929 ††,# |
1 The animals were treated with Cd at the concentrations of 0, 1, and 5 mg Cd/kg in their diets and/or 0.1% aqueous AE. 2 Data are shown as mean ± SE for eight rats, except for seven animals in the AE, Cd1, and Cd5 groups after 24 months. Statistically significant differences (Kruskal–Wallis post hoc test): * p < 0.05, ** p < 0.01, and *** p < 0.001 vs. control group; † p < 0.05, †† p < 0.01, and ††† p < 0.001 vs. appropriate Cd group; ‡ p < 0.05 vs. AE group; # p < 0.05 and ## p < 0.01 vs. appropriate group given the 1 mg Cd/kg diet (Cd1 group or Cd1 + AE group).