The association between markers of type I collagen synthesis and echocardiographic response to spironolactone in patients at risk of heart failure: findings from the HOMAGE trial
Masatake Kobayashi # 1, Nicolas Girerd # 1, João Pedro Ferreira 1 2, Duarte Kevin 1, Olivier Huttin 1, Arantxa González 3, Erwan Bozec 1, Andrew L Clark 4, Franco Cosmi 5, Joe Cuthbert 4, Javier Diez 3 6, Frank Edelmann 7, Mark Hazebroek 8, Stephane Heymans 8 9, Beatrice Mariottoni 5, Pierpaolo Pellicori 10, Johannes Petutschnigg 7, Burkert Pieske 7 11, Jan A Staessen 12 13, Job A J Verdonschot 8, Patrick Rossignol 1, John G F Cleland 10, Faiez Zannad 1
Aims: Procollagen type I C-terminal propeptide (PICP) and procollagen type III N-terminal propeptide (PIIINP) are markers reflecting collagen synthesis in cardiac fibrosis. However, they may be influenced by the presence of non-cardiac comorbidities (e.g. ageing, obesity, renal impairment). Understanding the associations between markers of collagen synthesis and abnormalities of cardiac structure and function is important to screen for myocardial fibrosis and monitor the antifibrotic effect of medications.
Methods and results: The HOMAGE (Heart 'OMics' in AGEing) trial showed that spironolactone decreased serum PICP concentrations and improved cardiac remodelling over 9 months in a population at risk of developing heart failure (HF). We evaluated the associations between echocardiographic variables, PICP, PIIINP and galectin-3 at baseline and during the course of the trial. Among 527 individuals (74 ± 7 years, 26% women), median serum concentrations of PICP, PIIINP and galectin-3 were 80.6 μg/L (65.1-97.0), 3.9 μg/L (3.1-5.0), and 16.1 μg/L (13.5-19.7), respectively. After adjustment for potential confounders, higher serum PICP was significantly associated with left ventricular hypertrophy, left atrial enlargement, and greater ventricular stiffness (all p < 0.05), whereas serum PIIINP and galectin-3 were not (all p > 0.05). In patients treated with spironolactone, a reduction in serum PICP during the trial was associated with a decrease in E/e' (adjusted-beta = 0.93, 95% confidence interval 0.14-1.73; p = 0.022).
Conclusions: In individuals at high risk of developing HF, serum PICP was associated with cardiac structural and functional abnormalities, and a decrease in PICP with spironolactone was correlated with improved diastolic dysfunction as assessed by E/e'. In contrast, no such associations were present for serum PIIINP and galectin-3.
Keywords: Cardiac structural remodelling; Collagen markers; Diastolic function; Heart failure; Myocardial fibrosis; Spironolactone.CITA DEL ARTÍCULO Eur J Heart Fail . 2022 Sep;24(9):1559-1568. doi: 10.1002/ejhf.2579. Epub 2022 Jul 5.