Table 2

Effects of TAK-147, tacrine and physostigmine on AChE activity in the rat cerebral cortex and BuChE activity in the rat plasma

CompoundAChE Inhibition (IC50: nM)BuChE Inhibition (IC50: nM)Selectivity (BuChE/AChE)
TAK-14751.2  ± 4.023500  ± 4500459
Tacrine153  ± 1253.8  ± 9.30.38
Physostigmine125  ± 1714.9  ± 1.50.12
  • Each IC50 value to AChE and BuChE activities represents the mean with the S.E.M. of four and three determinations done in triplicate, respectively.