Effect of Atrial Natriuretic Peptide on Muscle Sympathetic Activity and Its Reflex Control in Human Heart Failure

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Abstract

Background

The purpose of this study was to determine if atrial natriuretic peptide (ANP) exerts a relative inhibitory effect on muscle sympathetic nerve activity (MSNA) at rest and during nonhypotensive lower body negative pressure (LBNP) in heart failure, as in healthy subjects.

Conclusions

These observations are consistent with the concept that ANP exerts a sympathoinhibitory action in heart failure. This is most evident in response to reductions in atrial pressures that do not affect systemic BP. (Circulation. 1999;99:1810-1815.)

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