Acetylcholinesterase (AChE) inhibitor has been used as a drug for the symptomatic treatment of Alzheimer's disease. In order to search for new AChE inhibitors, 32 plants used in Thai traditional rejuvenating and neurotonic remedies were collected. The plant methanolic extracts were tested for AChE inhibitory activity using Ellman's colorimetric method in 96-welled microplates. The results showed that the methanolic extracts from roots of Stephania suberosa Forman. and Tabernaemontana divaricata (L.) R.Br. ex Roem. & Schutt. at concentration of 0.1 mg/ml inhibited more than 90% of AChE activity. At the same concentration, four extracts, i.e. stems of Piper interruptum Opiz., seeds of Piper nigrum L., rootbarks of Butea superba Roxb. and roots of Cassia fistula L. extracts showed 50-65% inhibitory activity on AChE. The rest of the extracts showed the AChE inhibitory activity below 50%. (C) 2003 Elsevier Ireland Ltd. All rights reserved.
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Leiden Univ, Gorlaeus Labs, Leiden Amsterdam Ctr Drug Res, Div Pharmacognosy, NL-2300 RA Leiden, NetherlandsLeiden Univ, Gorlaeus Labs, Leiden Amsterdam Ctr Drug Res, Div Pharmacognosy, NL-2300 RA Leiden, Netherlands
Rhee, IK
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van de Meent, M
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Leiden Univ, Gorlaeus Labs, Leiden Amsterdam Ctr Drug Res, Div Pharmacognosy, NL-2300 RA Leiden, NetherlandsLeiden Univ, Gorlaeus Labs, Leiden Amsterdam Ctr Drug Res, Div Pharmacognosy, NL-2300 RA Leiden, Netherlands
van de Meent, M
;
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Ingkaninan, K
;
Verpoorte, R
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Leiden Univ, Gorlaeus Labs, Leiden Amsterdam Ctr Drug Res, Div Pharmacognosy, NL-2300 RA Leiden, NetherlandsLeiden Univ, Gorlaeus Labs, Leiden Amsterdam Ctr Drug Res, Div Pharmacognosy, NL-2300 RA Leiden, Netherlands
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Leiden Univ, Gorlaeus Labs, Leiden Amsterdam Ctr Drug Res, Div Pharmacognosy, NL-2300 RA Leiden, NetherlandsLeiden Univ, Gorlaeus Labs, Leiden Amsterdam Ctr Drug Res, Div Pharmacognosy, NL-2300 RA Leiden, Netherlands
Rhee, IK
;
van de Meent, M
论文数: 0引用数: 0
h-index: 0
机构:
Leiden Univ, Gorlaeus Labs, Leiden Amsterdam Ctr Drug Res, Div Pharmacognosy, NL-2300 RA Leiden, NetherlandsLeiden Univ, Gorlaeus Labs, Leiden Amsterdam Ctr Drug Res, Div Pharmacognosy, NL-2300 RA Leiden, Netherlands
van de Meent, M
;
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h-index:
机构:
Ingkaninan, K
;
Verpoorte, R
论文数: 0引用数: 0
h-index: 0
机构:
Leiden Univ, Gorlaeus Labs, Leiden Amsterdam Ctr Drug Res, Div Pharmacognosy, NL-2300 RA Leiden, NetherlandsLeiden Univ, Gorlaeus Labs, Leiden Amsterdam Ctr Drug Res, Div Pharmacognosy, NL-2300 RA Leiden, Netherlands