Vol 27, No 6 (2020)
Original Article
Published online: 2018-11-26

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Kinetics of selected serum markers of fibrosis in patients with dilated cardiomyopathy and different grades of diastolic dysfunction of the left ventricle

Sylwia Wiśniowska-Śmiałek1, Ewa Dziewięcka1, Katarzyna Holcman1, Ewa Wypasek2, Lusine Khachatryan3, Aleksandra Karabinowska3, Maria Szymonowicz3, Agata Leśniak-Sobelga1, Marta Hlawaty1, Magdalena Kostkiewicz1, Piotr Podolec1, Paweł Rubiś1
Pubmed: 30484268
Cardiol J 2020;27(6):726-734.


Background: Fibrosis of the extracellular matrix (ECM) in dilated cardiomyopathy (DCM) is common and compromises both systolic and diastolic function. The aim of this study was to investigate the kinetics of ECM fibrosis markers over a 12 month follow-up in patients with DCM based on the severity of diastolic dysfunction (DD).

Methods: Seventy consecutive DCM patients (48 ± 12.1 years, ejection fraction 24.4 ± 7.4%) were included in the study. The grade of DD was determined using the ASE/EACVI algorithm. Markers of ECM fibrosis were measured at baseline and at 3 and 12 month follow-ups: collagen type I and III (PICP, PINP, PIIICP, PIIINP), transforming growth factor beta-1 (TGF1-b), connective tissue growth factor (CTGF) and galectin-3 were measured.

Results: Patients were divided into three groups according to DD severity: 30 patients with grade I, 18 with grade II and 22 with grade III of DD. Levels of PICP, PINP were increased over a 12-month period, while PIIINP decreased and PIIICP unchanged. Levels of TGF1-b decreased from the 3 to the 12-month points in grade I and II DD, and in grade III they remained unchanged. Levels of CTGF decreased over 12 months in grade III DD but were unchanged in grades I and II. Galectin-3 levels remained the same over all observation periods, irrespective of DD grade.

Conclusions: Regardless of the DD grade, markers of collagen type I synthesis increased, markers of collagen type III decreased. Levels of TGF and CTGF had a tendency to decrease. Galectin-3 was revealed not to be a marker discriminating the severity of DD.

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