YANG Zhong-duo, REN Jin, XUE Peng-hui, et al. Screening of Total Alkaloids from Tibetan Medicine for Acetylcholinesterase Inhibitory Activity[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(6): 194-196.
YANG Zhong-duo, REN Jin, XUE Peng-hui, et al. Screening of Total Alkaloids from Tibetan Medicine for Acetylcholinesterase Inhibitory Activity[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(6): 194-196.DOI:
Objective: To screen acetylcholinesterase inhibitory activity of total alkaloidal extracted from 8 tibetan medicines. Method: Tibetan medicines were extracted by ethanol and treated with hydrochloric acid and base
and then extracted by chloroform and n-butanol to obtain chloroform and n-butanol-soluble fractions. The AChE inhibitory activity was tested by TLC bioautographic method and modified Ellman's colorimetric method in 96-well microplates. Result: The results indicated that most of the chloroform-soluble fractions among the tested samples exhibited various activities. Holarrhena antidysenterica
Gentiana straminea
Anisodus tanguticus were demonstrated having significant activity with IC50 values of 6.32
28.2 and 34.80 mg ·L-1respectively. The n-butanol-soluble fractions of A.tanguticus also exhibited AchE inhibitory activity with the IC50 value of 51.7 mg ·L-1. Conclusion: H.antidysenterica