Table 2.

Changes of spatial learning and memory function of rats caused by aluminium gluconate overload (n = 17)

	Exploring time(s)
	Day 1	Day 2	Day 3	Day 4	Day 5
Control group	71.88 ± 12.33	47.55 ± 17.54	22.33 ± 10.12	18.37 ± 8.39	15.03 ± 4.55
Al-treated group	75.84 ± 10.42	52.63 ± 19.49	36.39 ± 19.65*	31.67 ± 16.84**	29.08 ± 17.56**

Data are expressed as mean ± SD of seventeen individual experiments. ∗P < 0.05 compared with corresponding control group; ∗∗P < 0.01 compared with corresponding control group.