Groups | Direct exposure | Exposure via food | |||||
---|---|---|---|---|---|---|---|
Organ | I (control) | II (1 mg CN−1/kg bwt) | III (2 mg CN−1/kg bwt) | IV (3 mg CN−1/kg bwt) | V (1 mg CN−1/kg bwt) | VI (2 mg CN−1/kg bwt) | VII (3 mg CN−1/kg bwt) |
4 weeks exposure | |||||||
 Liver | 1.12 ± 0.04a | 0.98 ± 0.06a | 0.87 ± 0.03b | 0.75 ± 0.09c | 1.01 ± 0.05a | 0.92 ± 0.07a | 0.83 ± 0.09b |
 Kidney | 0.83 ± 0.03a | 0.77 ± 0.07a | 0.64 ± 0.06b | 0.54 ± 0.08c | 0.80 ± 0.03a | 0.70 ± 0.05ab | 0.61 ± 0.08b |
 Heart | 1.05 ± 0.07a | 0.94 ± 0.09a | 0.82 ± 0.07b | 0.71 ± 0.05c | 0.98 ± 0.09a | 0.85 ± 0.03b | 0.78 ± 0.06b |
 Brain | 0.99 ± 0.07a | 0.90 ± 0.04a | 0.79 ± 0.05b | 0.66 ± 0.04c | 0.92 ± 0.08a | 0.81 ± 0.06b | 0.76 ± 0.03b |
8 weeks exposure | |||||||
 Liver | 1.28 ± 0.02a | 1.22 ± 0.07a | 1.08 ± 0.06b | 0.82 ± 0.05c | 1.24 ± 0.06a | 1.14 ± 0.03ab | 1.01 ± 0.06b |
 Kidney | 0.94 ± 0.08a | 0.89 ± 0.06a | 0.78 ± 0.07b | 0.60 ± 0.06c | 0.91 ± 0.04a | 0.81 ± 0.04b | 0.72 ± 0.05b |
 Heart | 1.22 ± 0.05a | 1.15 ± 0.04a | 0.95 ± 0.04b | 0.72 ± 0.08c | 1.18 ± 0.07a | 0.97 ± 0.06b | 0.86 ± 0.08b |
 Brain | 1.06 ± 0.04a | 0.94 ± 0.05b | 0.83 ± 0.09b | 0.70 ± 0.03c | 1.00 ± 0.04a | 0.91 ± 0.03a | 0.80 ± 0.04b |
12 weeks exposure | |||||||
 Liver | 1.31 ± 0.04a | 1.24 ± 0.07a | 1.13 ± 0.08b | 0.96 ± 0.09c | 1.26 ± 0.04a | 1.19 ± 0.06b | 1.06 ± 0.12b |
 Kidney | 1.01 ± 0.09a | 0.93 ± 0.12a | 0.83 ± 0.07b | 0.60 ± 0.09c | 0.99 ± 0.08a | 0.90 ± 0.08b | 0.72 ± 0.04d |
 Heart | 1.26 ± 0.70a | 1.18 ± 0.09a | 1.03 ± 0.06b | 0.81 ± 0.08c | 1.21 ± 0.09a | 1.05 ± 0.05b | 0.90 ± 0.10b |
 Brain | 1.19 ± 0.08a | 1.12 ± 0.05a | 0.99 ± 0.06b | 0.78 ± 0.12c | 1.14 ± 0.07a | 1.03 ± 0.05b | 0.89 ± 0.08b |