M S Muhyaddin

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1 The effects of gamma-aminobutyric acid (GABA) and related drugs on the isolated anococcygeus muscle of the rat were determined. 2 GABA caused a dose-related inhibition of the electrically-evoked twitch response. 3 The maximum response to GABA was a 56.8% depression of twitch response, with an EC50 of 0.68 microM. 4 (+/-)-Baclofen mimicked the effect of(More)
The release of preaccumulated [3H]noradrenaline from the isolated rat anococcygeus muscle, a tissue endowed with a rich noradrenergic innervation, was investigated. Field stimulation produced a marked, calcium-dependent enhancement in release, which could be substantially inhibited by the inclusion of low concentrations of GABA or (-)-baclofen (but not the(More)
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