Effect of nitric oxide inhibition on blood pressure and renal sodium handling: a dose-response study in healthy man

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Abstract

Nitric oxide (NO) is a ubiquitous vasodilator and an important regulator of renal sodium excretion. To further investigate the role of NO in renal sodium handling, we studied the effects of the NO synthase inhibitor, NG-monomethyl-L-arginine (L-NMMA), in a crossover dose-response study. During NO inhibition mean arterial pressure increased dose-dependently and reached a plateau after 20 minutes of infusion. On the contrary, the fractional excretion of sodium was reduced equally in all three L-NMMA doses. This indicates that sodium excretion is highly sensitive to even small changes in renal NO bioavailability in healthy human.
OriginalsprogEngelsk
TidsskriftClinical and Experimental Hypertension
Vol/bind34
Nummer8
Sider (fra-til)567-74
Antal sider8
ISSN1064-1963
DOI
StatusUdgivet - 2012

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