cholinesterase inhibitor 13 Acetylcholinesterase 10 Article 8 unclassified drug 8 Cholinesterase Inhibitors 7 IC50 7 Molecular docking 6 bark 6 controlled study 6 plant extract 6 human 5 Alzheimer disease 4 acetylcholinesterase 4 antioxidant 4 chemistry 4 cholinesterase inhibition 4 plant leaf 4 proton nuclear magnetic resonance 4 structure activity relation 4 Alzheimer Disease 3 Antioxidant 3 Antioxidants 3 Humans 3 Molecular Structure 3 Spectral analysis 3 antiinflammatory agent 3 antioxidant activity 3 drug isolation 3 drug structure 3 molecular docking 3