Table 3.

Inhibitory effect of compounds 1, 5, 9, 12, 14, 15, and 16 on IL-1β induced E-selectin expression.

Compound	EC [µM]	Max. Inhibition (%)
1	>250	ND
5	120	59.1 ± 16.7
9	108	56.2 ± 12.1
12	>250	ND
14	40	35.1 ± 10.1
15	50	51.5 ± 5.3
16	64	79.6 ± 4

EC: Effective concentration is based on at least on three independent experiments. Tested compounds: allantoin (1), protocatechuic aldehyde (5), malaxinic acid (9), rosmarinic acid (12), globoidnan A (14), comfreyn A (15), and caffeic acid ethyl ester (16).