Table 1

Group Conc.(µM)	Inhibition rate (%) on HDAC（ ± SD, n=3）
Group Conc.(µM)	CI-994	Z-GP-CI-994
1.0	48.72 ± 3.79	14.02 ± 2.26*
2.0	56.65 ± 5.63	28.97 ± 6.34*
3.0	61.44 ± 1.09	22.55 ± 9.66*
4.0	68.53 ± 2.74	31.13 ± 4.46*
5.0	78.04 ± 3.35	37.43 ± 3.52*

t-test vs CI-994: * P < 0.01

Table 1: The inhibitory effects of CI-994 and Z-GP-CI-994 on HDAC.