Table 2.

Inhibitory effects of isolated compounds on superoxide anion generation and elastase release by human neutrophils in response to N-formyl-l-methionyl-phenylalanine/cytochalasin B (fMLP/CB).

Compound	IC50 (μM) a
	Superoxide Anion Generation	Elastase Release
5	3.8 ± 1.4 ***	>10
LY294002 b	0.4 ± 0.02 ***	1.5 ± 0.3 ***

^a Concentration necessary for 50% inhibition (IC₅₀). Results are presented as means ± SD (n = 3–4). *** p < 0.001 compared with the control (DMSO). ^b A phosphatidylinositol-3-kinase inhibitor was used as a positive control.