Proteoglycan Remodeling Is Accelerated in Females with Angina Pectoris and Diffuse Myocardial Fibrosis: the iPOWER Study

Naja Dam Mygind, Signe Holm Nielsen, Marie Mide Michelsen, Adam Pena, Daria Frestad Bechsgaard, Elena Suhrs, Kira Bang Bove, Federica Genovese, Henning Bay Nielsen, Morten Karsdal, Niels Vejlstrup, Eva Prescott, Jens Kastrup

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Angina and no obstructive coronary artery disease (CAD) have an unfavorable prognosis, possibly due to diffuse myocardial fibrosis (DMF). In DMF the proteoglycans biglycan and versican are actively remodeled by matrix metalloproteinase. We investigated biglycan and versican in females with angina and possible DMF assessed by cardiac magnetic resonance (CMR). Seventy-one females with angina and no obstructive CAD were included. Asymptomatic females served as controls. Versican and biglycan were measured and CMR was performed measuring extracellular volume. Biglycan and versican levels were higher in symptomatic females compared with controls; 31.4 ng/mL vs. 16.4 ng/mL (p < 0.001) and 2.1 ng/mL vs. 1.8 ng/mL (p < 0.001) and moderately correlated to extracellular volume (r2 = 0.38, p<0.001 and r2 = 0.26, p = 0.015). Turnover of biglycan and versican was increased in angina females compared with controls and associated with extracellular volume, supporting a link between angina with no obstructive CAD and fibrotic remodeling.
Original languageEnglish
JournalJournal of Cardiovascular Translational Research
Number of pages9
ISSN1937-5387
DOIs
Publication statusAccepted/In press - 2021

Keywords

  • Proteoglycan
  • Angina pectoris
  • T1 mapping
  • Cardiac magnetic resonance
  • Coronary microvascular disease
  • Diffuse myocardial fibrosis
  • Extracellular matrix

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