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A Sensitive Double-Isotope Derivative Assay for Norepinephrine and Epinephrine: NORMAL RESTING HUMAN PLASMA LEVELS

Open access
ENGELMAN, KARL, PORTNOY, BARRY, HURLEY, NANCY·1970·Circulation Research

Abstract

A sensitive and specific double-isotope dilution method for assaying norepinephrine and epinephrine separately is described. The method is based on enzymatic conversion of these two catecholamines to their respective metanephrines and was applied successfully to measurement of resting plasma concentrations of norepinephrine and epinephrine in normal subjects with the finding that norepinephrine (0.20 ± 0.08 µg/liter) normally constitutes approximately 80% of the plasma catecholamine content and epinephrine (0.05 ± 0.03 µg/liter) 20%.

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Metadata

Authors
ENGELMAN, K., PORTNOY, B., & HURLEY, N.
Venue
Circulation Research
Published
1970-01
Volume
26
Issue
1
Pages
53-57
ISSN
  • 0009-7330 (ISSN-L)
  • 1524-4571
OpenAlex
W2164788882
Cited by
267
References
0
FWCI
39.37
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: A Sensitive Double-Isotope Derivative Assay for Norepinephrine and Epinephrine: NORMAL RESTING HUMAN PLASMA LEVELS. https://app.cochat.ai/papers/10.1161/01.res.26.1.53
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ENGELMAN, K., PORTNOY, B., & HURLEY, N. (1970). A Sensitive Double-Isotope Derivative Assay for Norepinephrine and Epinephrine: NORMAL RESTING HUMAN PLASMA LEVELS. Circulation Research. https://doi.org/10.1161/01.res.26.1.53

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.