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Influence of Dopamine on Atrial Natriuretic Peptide Level in Premature Infants

Influence of Dopamine on Atrial Natriuretic Peptide Level in Premature Infants ABSTRACT. The role of dopamine (DA) in the activation and/or release of atrial natriuretic peptide (ANP) was investigated in 11 premature infants during the early postnatal period. Mean plasma concentration of ANP and free DA level before DA infusion was 252.6±210 fmol/ml, and 0.4±0.2 ng/ml, respectively. DA infusion in a dose of 2μg/kg/min caused a rise in plasma free DA level to 59.7±21.5 ng/ml and a significant increase in GFR, diuresis, sodium excretion and fractional sodium excretion. The plasma concentration of ANP, however, remained unchanged (252.6±210.0 vs. 213±143.0 fmol/ml). Thus, our data failed to demonstrate a stimulatory effect of DA on ANP release in premature infants. The role of the high plasma concentration of ANP in preterm neonates immediately after birth has to be clarified. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Paediatrica: Nurturing The Child Wiley

Influence of Dopamine on Atrial Natriuretic Peptide Level in Premature Infants

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References (36)

Publisher
Wiley
Copyright
Copyright © 1987 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0803-5253
eISSN
1651-2227
DOI
10.1111/j.1651-2227.1987.tb10412.x
Publisher site
See Article on Publisher Site

Abstract

ABSTRACT. The role of dopamine (DA) in the activation and/or release of atrial natriuretic peptide (ANP) was investigated in 11 premature infants during the early postnatal period. Mean plasma concentration of ANP and free DA level before DA infusion was 252.6±210 fmol/ml, and 0.4±0.2 ng/ml, respectively. DA infusion in a dose of 2μg/kg/min caused a rise in plasma free DA level to 59.7±21.5 ng/ml and a significant increase in GFR, diuresis, sodium excretion and fractional sodium excretion. The plasma concentration of ANP, however, remained unchanged (252.6±210.0 vs. 213±143.0 fmol/ml). Thus, our data failed to demonstrate a stimulatory effect of DA on ANP release in premature infants. The role of the high plasma concentration of ANP in preterm neonates immediately after birth has to be clarified.

Journal

Acta Paediatrica: Nurturing The ChildWiley

Published: Jan 1, 1987

Keywords: ; ;

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