Pharmacological screening of Malian medicinal plants used against epilepsy and convulsions

被引:37
|
作者
Pedersen, Mikael E. [1 ,2 ]
Vestergaard, Henrik T. [2 ]
Hansen, Suzanne L. [2 ]
Bah, Sekou [3 ]
Diallo, Drissa [3 ]
Jaeger, Anna K. [1 ]
机构
[1] Univ Copenhagen, Dept Med Chem, Fac Pharmaceut Sci, DK-2100 Copenhagen O, Denmark
[2] Univ Copenhagen, Dept Pharmacol & Pharmacotherapy, Fac Pharmaceut Sci, DK-2100 Copenhagen O, Denmark
[3] Inst Natl Rech Sante Publ, Dept Med Traditionnelle, Bamako, Mali
关键词
Cortical wedge preparation; Epilepsy; GABA; Malian traditional medicine; GABA(A) RECEPTOR LIGANDS; CEREBRAL-CORTEX; DRUGS; SITE; ANTICONVULSANT; BINDING; EXTRACT; COMPLEX; AFRICA; SLICES;
D O I
10.1016/j.jep.2008.11.006
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Ethnopharmacological relevance: Several medicinal plants are used in Mali to treat epilepsy and convulsions. So far, no studies have investigated the pharmacological effect of these plants. Aims: The aim of this study was to investigate the in vitro and in vivo antiepileptic potential of the ethanolic extracts of 11 Malian medicinal plants. Materials and methods: The extracts were screened for antiepileptic properties in the mouse cortical wedge preparation and in the [H-3]-flumazenil binding assay. Two of the plant extracts were investigated for anticonvulsive properties in the pentylenetetrazol (PTZ) kindling model in mice. Possible side effects on motor impairment were evaluated using the rota-rod test. Results: Extracts of 10 of the 11 medicinal plants showed affinity to the benzodiazepine binding site on the GABA(A) receptor. Seven of the 11 extracts inhibited the spontaneous discharges (SEDs) in the mouse cortical wedge preparation, with the extracts of Flueggea virosa and Psorospermum senegalense being the most potent. However, when tested for in vivo anticonvulsive properties these two extracts failed to show any effect on PTZ-induced seizures in mice. Conclusions: The pharmacological screening of the ethanolic extracts of 11 Malian medicinal plants in vitro lead to the identification of several extracts with potential anticonvulsant properties. (c) 2008 Elsevier Ireland Ltd. All rights reserved.
引用
收藏
页码:472 / 475
页数:4
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