Supranodose vagotomy eliminates respiratory depression evoked by dermorphin in anaesthetized rats.

Abstract

The respiratory effects of stimulation of mu-opioid receptors were studied in spontaneously breathing anaesthetized rats that were either neurally intact or subjected to bilateral supranodosal vagotomy. An intravenous dermorphin bolus of 0.5 mg/kg evoked the apnea followed by breathing of reduced rate and compensatory augmentation of tidal volume, which… (More)

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