Effects of injected sympathomimetic amines on plasma catecholamines and circulatory variables in man

D. S. Goldstein, John Nurnberger, S. Simmons, E. S. Gershon, R. Polinsky, H. R. Keiser

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

We measured blood pressure, heart rate (HR), and plasma catecholamine responses to a 5-minute infusion of 0.3 mg/kg d-amphetamine (d-A) and to graded bolus injections of tyramine (Tyr) to a similar increment in systolic pressure (BPs), in 9 and 7 healthy people, respectively. Both sympathomimetic agents dramatically increased BPs (mean increases peaking at 39 and 36 mm Hg for d-A and Tyr), associated with increased plasma norepinephrine (NE) (224 and 149 pg/ml) but unassociated with changes in plasma epinephrine or HR. The time course of BPs and NE responses to Tyr was much shorter than to d-A, but the pattern was similar. The results are consistent with the hypotheses that both agents increase BPs via increased synaptic cleft NE, and that circulating plasma NE reflects "spillover" from the cleft into the general circulation.

Original languageEnglish (US)
Pages (from-to)1057-1063
Number of pages7
JournalLife Sciences
Volume32
Issue number10
DOIs
StatePublished - Mar 7 1983
Externally publishedYes

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Sympathomimetics
Dextroamphetamine
Tyramine
Catecholamines
Norepinephrine
Plasmas
Heart Rate
Blood Pressure
Blood pressure
Epinephrine
Injections

ASJC Scopus subject areas

  • Pharmacology

Cite this

Effects of injected sympathomimetic amines on plasma catecholamines and circulatory variables in man. / Goldstein, D. S.; Nurnberger, John; Simmons, S.; Gershon, E. S.; Polinsky, R.; Keiser, H. R.

In: Life Sciences, Vol. 32, No. 10, 07.03.1983, p. 1057-1063.

Research output: Contribution to journalArticle

Goldstein, D. S. ; Nurnberger, John ; Simmons, S. ; Gershon, E. S. ; Polinsky, R. ; Keiser, H. R. / Effects of injected sympathomimetic amines on plasma catecholamines and circulatory variables in man. In: Life Sciences. 1983 ; Vol. 32, No. 10. pp. 1057-1063.
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