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      ACTH stimulation of adrenal epinephrine and norepinephrine release.

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      Hormone research

      S. Karger AG

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          Abstract

          Epinephrine (E) and norepinephrine (NE) levels were measured simultaneously in the adrenal veins of 6 patients before and after stimulation with 0.25 mg beta 1-24 ACTH. In 1 patient with Cushing's syndrome, E and NE were also measured before and 30 min after dexamethasone. There was a significant increase in NE and E secretion (p less than 0.002) from both adrenal glands after ACTH stimulation. In the patient with Cushing's syndrome, there was also a slight increase in plasma E levels after dexamethasone. It is postulated that ACTH stimulated NE and E secretion by augmenting blood flow through the adrenals and by induction of tyrosine hydroxylase and dopamine beta-hydroxylase, although a direct effect of ACTH on NE and E secretion cannot be excluded. It is also possible that the increase in adrenal catecholamine secretion after ACTH may be due to ACTH augmentation of catecholamine secretion by endogenous opioids such as beta-endorphin.

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          Author and article information

          Journal
          Horm. Res.
          Hormone research
          S. Karger AG
          0301-0163
          0301-0163
          1986
          : 23
          : 1
          Article
          10.1159/000180283
          3000912

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