Table 3.
Rat behavioral tests.
| Normal group | Lead-induced group | EDTA group | L. fermentum SCHY34 group | ||
|---|---|---|---|---|---|
| Morris water maze | Incubation period (s) | 20.48 ± 1.65a | 109 ± 5.71d | 83.65 ± 3.10c | 52.39 ± 2.58b |
| Number of shuttles | 23.4 ± 1.54d | 10.6 ± 1.75a | 15.8 ± 1.15b | 18.9 ± 1.63c | |
| Swimming speed (cm/s) | 23.45 ± 1.64a | 22.98 ± 1.01a | 23.78 ± 0.97a | 23.17 ± 1.33a | |
| Active avoidance experiment | Conditioned reflex latency (s) | 36.85 ± 7.94a | 96.25 ± 5.41d | 80.78 ± 6.98c | 68.19 ± 5.76b |
| Number of conditioned reflexes | 24.16 ± 1.89d | 12.74 ± 1.36a | 15.15 ± 1.43b | 20.03 ± 1.65c |
Value presented are the mean ± standard deviation (n = 12/group).
a−d
Mean values with different letters in the same row are significantly different (p < 0.05) according to Duncan's multiple range test. Lead-induced group: Rat free to drink 200 mg/L lead acetate solution every day; EDTA group: Rat free to drink 200 mg/L lead acetate solution every day and treated with 500 mg/kg (b.w) EDTA every day from 8 to 12 week; L. fermentum SCHY34 group: Rat free to drink 200 mg/L lead acetate solution every day and treated with 1.0 × 109 CFU/kg (b.w) of L. fermentum SCHY34 every day.