1(S),9(R)-(−)-Bicuculline methchloride is a GABAA receptor antagonist, which blocks Ca2+-activated potassium (SK) channels.
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6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
We examined the interactions of D,L-laudanosine, a potentially epileptogenic metabolite of the neuromuscular relaxant atracurium besylate, with gamma-aminobutyric acid (GABA) and opioid binding sites, all of which have been implicated in seizure activity. Laudanosine was almost ineffective at [3H]muscimol binding
The influence of GABAA receptors on orientation selectivity of cat complex cells was tested by iontophoresis of the GABAA receptor blockers bicuculline and N-methyl-bicuculline while stimulating with drifting sinusoidal gratings. Reduction of orientation tuning was markedly less than reported in
gamma-Aminobutyric acid (GABA) is the main inhibitory neurotransmitter in the central nervous system. Two classes of GABA receptors (GABAA and GABAB) have been identified. GABAA receptors are ligand-gated chloride channels that are competitively antagonized by bicuculline, noncompetitively blocked by picrotoxin
The Journal of physiology, 496 ( Pt 3), 759-772 (1996-11-01)
1. Spontaneous non-NMDA glutamate receptor-mediated EPSCs were recorded with the whole-cell patch-clamp technique from twenty-six neurones in the dorsal lateral geniculate nucleus in thalamic slices from guinea-pig. 2. Amplitude distributions of the EPSCs were skewed towards larger values. The skewness
Proceedings of the National Academy of Sciences of the United States of America, 90(1), 257-261 (1993-01-01)
The morphological and functional consequences of epileptic activity were investigated by applying the convulsants bicuculline and/or picrotoxin to mature rat hippocampal slice cultures. After 3 days, some cells in all hippocampal subfields showed signs of degeneration, including swollen somata, vacuolation
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