Atrial natriuretic hormones and metabolic syndrome: recent advances.

[Atrial natriuretic hormones and metabolic syndrome: recent advances]. Presse Med. 2018 Feb 26;: Authors: Benomar K, Espiard S, Loyer C, Jannin A, Vantyghem MC Abstract Natriuretic peptides are a group of hormones including atrial natriuretic peptide (ANP), brain natriuretic peptide (BNP), C type (CNP), urodilatin and guanilyn. ANP (half-life: 2-4 min), is secreted by the atrium, BNP (half-life: 20 min) by the ventricle, CNP by the vascular endothelium, urodilatin by the kidney and guanylin by the intestine. These natriuretic peptides prevent water and salt retention through renal action, vasodilatation and hormonal inhibition of aldosterone, vasopressin and cortisol. These peptides also have a recently demonstrated metabolic effect through an increase of lipolysis, thermogenesis, beta cell proliferation and muscular sensitivity to insulin. Blood levels of these natriuretic peptides depend on "active NPR-A receptors/clearance NPR-C receptors", the last ones being abundant on adipocytes. Therefore, natriuretic peptides act as adipose tissue regulator and constitute a link between blood pressure and metabolic syndrome. They are used as markers and treatment of cardiac failure. Other applications are on going. BNP and NT-proBNP (inactive portion de la pro-hormone) are used as markers of cardiac failure since they have a longer half-life than ANP. BNP decrease is quicker and more important than that one of NT-ProBNP in case of improvement of cardia...
Source: Presse Medicale - Category: General Medicine Authors: Tags: Presse Med Source Type: research

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