Table 2

Inhibition of adenylate cyclase activity after long-term exposure (24 h) of SHSY5Y cells to DAMGO (10 μM) or BUBU (10 μM)

Treatments	Adenylate Cyclase Inhibition by
Treatments	DAMGO	DPDPE
	%
Control	41.33 ± 4.48	47.33 ± 5.3
DAMGO	4.67 ± 2.72^2-150	35.02 ± 6.66
BUBU	36.23 ± 6.54	6.33 ± 5.25^{^2-150}

Results represent the maximal inhibition observed in presence of DAMGO (10 μM) or DPDPE (10 μM) compared to basal activity, mean ± S.E. of three independent experiments performed in triplicate.

↵2-150 P < .01 compared with control cells.