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beta erythroidine/seizures
L'enllaç es desa al porta-retalls
9 resultats
GABAergic systems modulate nicotinic receptor-mediated seizures in mice.
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The pharmacology of nicotinic receptor-mediated seizures was investigated in C3H mice. Eleven nicotinic agonists and six antagonists were administered centrally (i.c.v.). Epibatidine and epiboxidine were the most potent agonists tested, whereas acetylcholine and the alpha7*-selective compounds
Pharmacological characterization of nicotine-induced seizures in mice.
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Pharmacological mechanisms involved in nicotine-induced seizures were investigated in mice by testing the ability of several nicotinic agonists in producing seizures after peripheral administration. In addition, nicotinic antagonists such as hexamethonium, mecamylamine, dihydro-beta-erythroidine,
Nicotine Elicits Convulsive Seizures by Activating Amygdalar Neurons.
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Nicotinic acetylcholine (nACh) receptors are implicated in the pathogenesis of epileptic disorders; however, the mechanisms of nACh receptors in seizure generation remain unknown. Here, we performed behavioral and immunohistochemical studies in mice and rats to clarify the mechanisms underlying
Micro-electrophoretic studies of neurones in the cat hippocampus.
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1. Drugs have been applied micro-electrophoretically to units in the hippocampal cortex of the anaesthetized cat, and their effects on cell firing were recorded simultaneously.2. L-Glutamate rapidly and powerfully excited hippocampal units, an effect which was quickly reversed on stopping the
Exaggeration of epileptic-like patterns by nicotine receptor activation during the GABA withdrawal syndrome.
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To understand how nicotinic cholinergic receptors may participate in epileptic seizures, we tested the effects of nicotine and of the competitive nicotinic antagonists dihydro-beta-erythroidine and alpha-bungarotoxin on synaptic paroxysmal depolarization shifts (PDSs) and intrinsic bursts of action
Alpha4* nicotinic receptors in preBotzinger complex mediate cholinergic/nicotinic modulation of respiratory rhythm.
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Acetylcholine and nicotine can modulate respiratory patterns by acting on nicotinic acetylcholine receptors (nAChRs) in the preBötzinger complex (preBötC). To further explore the molecular composition of these nAChRs, we studied a knock-in mouse strain with a leucine-to-alanine mutation in the M2
Nicotinic effects on excitatory field potentials recorded from the immature CA3 area of rat hippocampal slices.
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We investigated the nicotinic modulation of the excitatory field potentials recorded from the immature (postnatal day 10-20) hippocampal CA3 area, in the presence of the GABA(A) antagonist bicuculline methiodide (BMI, 10 microM). Nicotine (50 microM) enhanced the evoked field potentials; its effects
Regulation of glutamate release by heteromeric nicotinic receptors in layer V of the secondary motor region (Fr2) in the dorsomedial shoulder of prefrontal cortex in mouse.
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We studied how nicotinic acetylcholine receptors (nAChRs) regulate glutamate release in the secondary motor area (Fr2) of the dorsomedial murine prefrontal cortex, in the presence of steady agonist levels. Fr2 mediates response to behavioral situations that require immediate attention and is a
Nicotinic antagonist administration into the ventral hippocampus and spatial working memory in rats.
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Nicotinic acetylcholine receptors are important for maintaining optimal memory performance. In order to more fully characterize the involvement of nicotinic systems in memory, the contributions of nicotinic acetylcholine receptor subtypes were investigated. This study targeted the alpha 7 and alpha
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