α1-Adrenoceptor function in the rat hippocampus as assessed by noradrenaline-stimulated inositol phospholipid breakdown after destruction of noradrenergic neurons by neonatal 6-hydroxydopamine treatment

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Abstract
Neonatal 6-hydroxydopamine treatment of male Sprague-Dawley rats resulted in a large depletion of noradrenaline 84–87 days later, as demonstrated by an 82% reduction in the intra-synaptosomal deamination of [14C]noradrenaline within noradrenergic synaptosomes with only marginal effects upon the extrasynaptosomal deamination. The hippocampal stimulation of inositol phospholipid breakdown by noradrenaline was, however, unaffected by the neonatal 6-hydroxydopamine treatment.