TABLE 1.

Comparison of the kinetic parameters of AEA transport obtained by the two procedures in human HaCaT cells and SH-SY5Y cells

	Import						Export
	Km (μM)		Vmax [pmol/(min·mg)]		t1/2 (min)		t1/2 (min)
Cell Line	Plastic	Glass	Plastic	Glass	Plastic	Glass	Plastic	Glass
HaCaT	0.47 ± 0.15	0.27 ± 0.05**	125 ± 15	130 ± 1	5.1 ± 2.7	2.5 ± 0.7*		2.4 ± 0.8
SH-SY5Y	0.49 ± 0.23	0.46 ± 0.12	41.5 ± 5.2	16.2 ± 1.9***				1.1 ± 0.2

Data are means ± SD values, n = 9 for each value. ^* Indicates P < 0.05 versus plastic control; ^** indicates P < 0.01 versus plastic control; ^*** indicates P < 0.001 versus plastic control.