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erythrina mulungu/alkaloid
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7 resultados
Anxiolytic effects of erythrinian alkaloids from Erythrina mulungu.
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One new erythrinian alkaloid derivative, (+)-11alpha-hydroxyerythravine (1), and the known (+)-erythravine (2) and (+)-alpha-hydroxyerysotrine (3) were isolated from the flowers of Erythrina mulungu. Their structures were determined by spectroscopic/spectrometric data interpretation of 1H, 13C, and
Erythrina mulungu alkaloids are potent inhibitors of neuronal nicotinic receptor currents in mammalian cells.
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Crude extracts and three isolated alkaloids from Erythrina mulungu plants have shown anxiolytic effects in different animal models. We investigated whether these alkaloids could affect nicotinic acetylcholine receptors and if they are selective for different central nervous system (CNS) subtypes.
Effects of erythrinian alkaloids isolated from Erythrina mulungu (Papilionaceae) in mice submitted to animal models of anxiety.
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The effects of acute oral administration of erythrinian alkaloids, i.e. (+)-alpha-hydroxy-erysotrine, erythravine and (+)-11alpha-hydroxy-erythravine isolated from the flowers of Erythrina mulungu were investigated in two animal models of anxiety in mice-the light-dark transition model (LDTM) and
Anticonvulsant profile of the alkaloids (+)-erythravine and (+)-11-α-hydroxy-erythravine isolated from the flowers of Erythrina mulungu Mart ex Benth (Leguminosae-Papilionaceae).
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Neural mechanisms underlying the onset and maintenance of epileptic seizures involve alterations in inhibitory and/or excitatory neurotransmitter pathways. Thus, the prospecting of novel molecules from natural products that target both inhibition and excitation systems has deserved interest in the
Erysothrine, an alkaloid extracted from flowers of Erythrina mulungu Mart. ex Benth: evaluating its anticonvulsant and anxiolytic potential.
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In this study, we isolated the alkaloid erysothrine from the hydroalcoholic extract of flowers from E. mulungu and screened for its anticonvulsant and anxiolytic actions based on neuroethological and neurochemical experiments. Our results showed that the administration of erysothrine inhibited
Effects of chronic treatment with a water-alcohol extract from Erythrina mulungu on anxiety-related responses in rats.
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We investigated the effects of chronic oral treatment with a water-alcohol extract from the inflorescence of Erythrina mulungu (Leguminosae-Papilionaceae) (EM, 50, 100, 200 mg/kg) in rats submitted to different anxiety models: the elevated T-maze (ETM, for inhibitory avoidance and escape
New insights in the mode of action of (+)-erythravine and (+)-11α-hydroxy-erythravine alkaloids
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Erythrinian alkaloids ((+)-erythravine and (+)-11-α-hydroxy-erythravine) have been pointed as the main responsible agents for the anticonvulsant and anxiolytic properties of Erythrina mulungu Mart ex Benth. The present work provides a new set of information about the mode of action of these
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