Table 4.

The detailed relative gray values of proteins neuroligin-1 and neurexin IIα (mean ± SD, n = 20).

	E16	E18	E20	Ep0
Neuroligin-1	0.053 ± 0.025	0.146 ± 0.024d	0.249 ± 0.034de	0.533 ± 0.049def
Neurexin IIα	0.054 ± 0.009	0.106 ± 0.020d	0.215 ± 0.013de	0.280 ± 0.030def

^d P < 0.05  versus  E16, ^eP < 0.05  versus  E18, and ^fP < 0.05  versus  E20.