Atrial Natriuretic Peptide Response Is Blunted in Patients with Acute Myocardial Infarction and Mild Left Ventricular Dysfunction

Cardiology ◽  
1994 ◽  
Vol 84 (2) ◽  
pp. 79-88
Author(s):  
Giorgio Derchi ◽  
Pietro Bellone ◽  
Giorgio Tommasini ◽  
Maria Luisa Biorci ◽  
Matilde Randazzo ◽  
...  
2004 ◽  
Vol 96 (4) ◽  
pp. 1306-1311 ◽  
Author(s):  
Jarkko Magga ◽  
Mikko Puhakka ◽  
Seppo Hietakorpi ◽  
Kari Punnonen ◽  
Paavo Uusimaa ◽  
...  

Experimental data suggest that atrial natriuretic peptide (ANP) and B-type natriuretic peptide (BNP) act locally as antifibrotic factors in heart. We investigated the interrelationships of natriuretic peptides and collagen markers in 93 patients receiving thrombolytic treatment for their first acute myocardial infarction (AMI). Collagen formation following AMI, evaluated as serum levels of amino terminal propeptide of type III procollagen, correlated with NH2-terminal proANP ( r = 0.45, P < 0.001), BNP ( r = 0.55, P < 0.001) and NH2-terminal proBNP ( r = 0.50, P < 0.01) on day 4 after thrombolysis. Levels of intact amino terminal propeptide of type I procollagen decreased by 34% ( P < 0.001), and levels of carboxy terminal cross-linked telopeptide of type I collagen (ICTP) increased by 65% ( P < 0.001). ICTP levels correlated with NH2-terminal proBNP ( r = 0.25, P < 0.05) and BNP ( r = 0.28, P < 0.05) on day 4. Our results suggest that ANP and BNP may act as regulators of collagen scar formation and left ventricular remodeling after AMI in humans. Furthermore, degradation of type I collagen is increased after AMI and may be regulated by BNP.


The Lancet ◽  
1993 ◽  
Vol 341 (8853) ◽  
pp. 1105-1109 ◽  
Author(s):  
A. Lerman ◽  
R.J. Gibbons ◽  
R.J. Rodeheffer ◽  
K.R. Bailey ◽  
L.J. McKinley ◽  
...  

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