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• W2097078503 abstract "This study evaluates and compares the release of the neurotransmitter γ-aminobutyric acid (GABA) induced by methanolic extracts obtained from roots of wild plants and from cell suspension cultures of W. americana Linn. The release of this neurotransmitter was evoked by crude and fractioned extracts derived from both roots of wild plant and cell suspension cultures, tested at three concentrations: 10, 50 and 100 µg/ml by means of in vitro incubation of slices of mouse cerebral cortex. Firstly, crude extracts from wild plant roots obtained by applying solvents of different polarities (n-hexane, dichloromethane and methanol) were tested at a concentration of 10 µg/ml with no observed effect on the level of GABA release, but when  the same extracts at a concentration of 100 µg/ml was evaluated, methanol extract (MeOH) was determined to be the most effective in terms of the release of GABA (35.445 pmol/mg protein). The chromatographic fraction F-2EMRWA from methanol extract showed an increase in the basal release of GABA at a concentration of 50 µg/ml (153.911 pmol/mg protein) and 100 µg/ml (58.699 pmol/mg protein), with respect to the whole extract. The MeOH crude extract prepared from dried biomass of cell suspensions cultures showed the greatest increase in the concentration of GABA, released at a concentration of 50 µg/ml (332.108 pmol/mg protein) and 100 µg/ml (236.697 pmol/mg protein), unlike that observed in other extracts and wild plant root fractions. These results suggest that wild plant and cell suspension cultures of W. americana produce some compounds that cause an increase in the release of GABA in in vitro experiments, corroborating with the ethnomedical applications associated with this species, and indicates high potential for research and development of new active drugs for the treatment of several central nervous system (CNS) disorders related to the GABA system. Key words: Calli, cell suspension cultures, GABAergic system, neurological disorder, Waltheria indica." @default.
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• W2097078503 date "2015-02-08" @default.
• W2097078503 modified "2023-10-03" @default.
• W2097078503 title "Methanolic extracts from roots and cell suspension cultures of Waltheria americana Linn induce GABA release in cerebral slices of mouse brain" @default.
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• W2097078503 doi "https://doi.org/10.5897/ajpp2014.4115" @default.
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