Table 6. Inhibitory effects of some compounds from T. chinensis on NO production induced by LPS in macrophagesa^c.

Compound	IC50 (μM)a	Compound	IC50 (μM)a
1	28.7 ± 2.1	15	46.1 ± 13.1
4	21.7 ± 1.3	17	21.0 ± 0.8
5	45.9 ± 3.1	18	41.6 ± 13.5
7	45.2 ± 5.7	19	45.4 ± 11.2
9	33.6 ± 1.7	20	22.6 ± 5.0
10	28.7 ± 4.5	21	11.5 ± 1.3
13	26.1 ± 0.5	Indomethacinb	47.4 ± 4.5
14	29.1 ± 0.6

^aValues are presented as means ± SD (n = 3).

^bPositive control.

^cCompounds 2, 3, 6, 8, 11, 12, 16, 19, 22, 23 with IC₅₀ > 50.0 μM.