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“In a double-blind study in normal subjects, methoxamine , a highly selective agonist at alpha-1-adrenoceptors, significantly increased circulating ACTH and cortisol.”
“In conscious rats bearing venous and cerebroventricular cannulae, central administration of the alpha 1-adrenergic agonist methoxamine stimulated the secretion of ACTH , and the effect was reduced by the alpha 1-antagonist prazosin.”
“ Methoxamine was more potent in stimulating ACTH secretion when injected icv than peripherally, suggesting that the stimulant alpha 1-adrenoceptors are located in the brain rather than in the periphery.”