Comparing Acetylcholinesterase and Butyrylcholinesterase Inhibition Effect of Total Extract and Fractions with Alcaloid-Rich Extract of Huperzia Serrata (Thunb.) Trevis

Autor: Dao Thi Vui, Bui Thanh Tung, Nguyen Thuy Duong, Dang Kim Thu, Nguyen Thi Thu Hoai
Rok vydání: 2020
Předmět:
Zdroj: VNU Journal of Science: Medical and Pharmaceutical Sciences. 36
ISSN: 2588-1132
2615-9309
0929-8673
DOI: 10.25073/2588-1132/vnumps.4214
Popis: Herbal extract, rich with natural compounds, has been used for medicinal purpose such as treating neurological disorders such as cognitive defection for a long period of time, often without significant adverse effects. We compared AChE and BuChE – inhibition effect of total extracts and fractions of Huperzia serrata (Thunb.) Trevis. with alcaloid-rich extract. Our samples were subjected under supersonic extraction with ethanol 50o as solvent and fractionally extracted with n-hexane, EtOAc and n-butanol, respectively; alcaloid-rich extract was collected simutaneously. Ellman’s method was used to assay AChE and BuChE inhibition activity. Results: Alcaloid-rich extraction proved to be the superior AChE inhibiting agent, its activity nearly 6 fold of the most active Huperzia serrata extraction with IC50 value of 7.93 (5.43-10.98) µg/ml. While the fractions as well as the total extract did not provide any BuChE inhibition activity, alcaloid-rich extract showed weak ability (IC50 at 76.67 (64.78 – 91.84) µg/ml). Overall, the superior enzyme inhibition effect of alcaloid-rich extract might open a new approach in preventing and treating neurological disorders such as alzheimer’s. Keywords Huperzia serrata (Thunb.) Trevis, alcaloid, Acetylcholinesrerase inhibitors (AChE); butyrylcholinesterase (BuChE), Alzheimer. References [1] Dos Santos Picanco, Leide C et al., Alzheimer's disease: A review from the pathophysiology to diagnosis, new perspectives for pharmacological treatment, Current medicinal chemistry 25(26) (2018) 3141 - 3159. https://doi.org/10.2174/0929867323666161213101126.[2] B.M. McGleenon, K.B. Dynan, A.P. 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