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  • Title: Benzodiazepine-receptor mediated convulsions in infant rats: effects of beta-carbolines.
    Author: Nutt DJ, Little H.
    Journal: Pharmacol Biochem Behav; 1986 Apr; 24(4):841-4. PubMed ID: 3012598.
    Abstract:
    The effects of anticonvulsant and proconvulsant benzodiazepine-receptor ligands were studied in infant rats. The agonist flurazepam increased myoclonic twitching of the limbs as has previously been reported. In contrast, the convulsant beta-carbolines DMCM and beta-CCM did not produce twitching, but did produce marked increases in locomotor activity and whole body shakes. The standard convulsants pentylenetetrazol and bicuculline similarly increased locomotor activity and shaking. These findings suggest that the effects of agonist benzodiazepines cannot be interpreted as convulsant-type behaviour. In addition, the finding that DMCM and beta-CCM have equivalent effects despite showing preferential affinities for benzodiazepine-receptor subtypes argues against one particular subtype having proconvulsant effects.
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