
<chemical> A potent natriuretic and vasodilatory peptide or mixture of different-sized low molecular weight peptides derived from a common precursor and secreted by the heart atria. All these peptides share a sequence of about 20 amino acids. ... Chemical name: Atriopeptin ... (12 Dec 1998) ...
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http://www.encyclo.co.uk/local/20973

Obsolete name for atrial natriuretic peptide.
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http://www.encyclo.co.uk/visitor-contributions.php
(ANF) Type: Term Definitions: 1. an early name given to a natriuretic factor derived from cardiac atria. Because the factor is now known to be a peptide, however, the term is no longer used.
Found on
http://www.medilexicon.com/medicaldictionary.php?t=31632

any of several peptide hormones that are released by the atria of the heart in response to an abnormal increase in blood volume and that modulate blood pressure and the excretion of sodium, potassium, and water. Abbr: ANF&hasp; Also called
Found on
https://www.infoplease.com/dictionary/atrial-natriuretic-factor
No exact match found.