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magnolia ovata/crise épileptique
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Differential inhibitory effects of honokiol and magnolol on excitatory amino acid-evoked cation signals and NMDA-induced seizures.
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The effects of honokiol and magnolol, two major bioactive constituents of the bark of Magnolia officinalis, on Ca(2+) and Na(+) influx induced by various stimulants were investigated in cultured rat cerebellar granule cells by single-cell fura-2 or SBFI microfluorimetry. Honokiol and magnolol
Magnolia officinalis reduces the long-term effects of the status epilepticus induced by kainic acid in immature rats.
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During critical periods of neurodevelopment, the immature brain is susceptible to neuronal hyperexcitability, alterations such as hyperthermia, hypoxia, brain trauma or a preexisting neuroinflammatory condition can trigger, promote and prolong epileptiform activity and facilitate the development of
Honokiol, a putative anxiolytic agent extracted from magnolia bark, has no diazepam-like side-effects in mice.
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Use of the elevated plus-maze experiment and activity and traction tests in mice have revealed that seven daily treatments with 0.2 mg kg(-1) and higher doses of honokiol, a neolignane derivative extracted from Magnolia bark, had an anxiolytic effect without change in motor activity or muscle tone.
Moderate concentrations of 4-O-methylhonokiol potentiate GABAA receptor currents stronger than honokiol.
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BACKGROUND
Magnolia bark preparations from Magnolia officinalis of Asian medicinal systems are known for their muscle relaxant effect and anticonvulsant activity. These CNS related effects are ascribed to the presence of the biphenyl-type neolignans honokiol and magnolol that exert a potentiating
Honokiol, a neuroprotectant against mouse cerebral ischaemia, mediated by preserving Na+, K+-ATPase activity and mitochondrial functions.
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Honokiol, a component of the herb Magnolia officinalis, exhibits antioxidant, anti-inflammatory and anxiolytic properties, increases seizure threshold, and promotes neurite outgrowth. Because stroke has become the second leading cause of death in industrialized countries, an effective
Anticonvulsant effects of Magnolia grandiflora L. in the rat.
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The ethyl ether (EE) and hydroalcoholic extract (HE) of Magnolia grandiflora L. (Magnoliaceae) seeds, a popular plant utilized in the Mexican traditional medicine because of its antispasmodic as well as other reported pharmacological effects, were studied in adult male Wistar rats. EE and HE orally
Magnolol, a major bioactive constituent of the bark of Magnolia officinalis, exerts antiepileptic effects via the GABA/benzodiazepine receptor complex in mice.
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OBJECTIVE
The aim of this study was to evaluate the anti-convulsant effects of magnolol (6, 6', 7, 12-tetramethoxy-2, 2'-dimethyl-1-β-berbaman, C18H18O2) and the mechanisms involved.
METHODS
Mice were treated with magnolol (20, 40 and 80 mg·kg(-1)) 30 min before injection with pentylenetetrazol
MAGNOLIA OFFICINALIS REDUCES INFLAMMATION AND DAMAGE INDUCED BY RECURRENT STATUS EPILEPTICUS IN IMMATURE RATS.
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Neuropharmacological effects of an ethanol extract of the Magnolia dealbata Zucc. leaves in mice.
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Magnolia dealbata Zucc. is considered to have tranquilizer and anticonvulsant properties in Mexican traditional medicine. In the present study we report the effects of a crude extract of Magnolia dealbata (30, 100 and 300 mg/kg) on mouse central nervous system (CNS). Pharmacological effects were
HPLC-Based Activity Profiling for GABAA Receptor Modulators in Extracts: Validation of an Approach Utilizing a Larval Zebrafish Locomotor Assay.
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Gamma-aminobutyric acid type A (GABAA) receptors are major inhibitory neurotransmitter receptors in the central nervous system and a target for numerous clinically important drugs used to treat anxiety, insomnia, and epilepsy. A series of allosteric GABAA receptor agonists was identified previously
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