COVID-19 patient fibrinogen produces dense clots with altered polymerization kinetics, partially explained by increased sialic acid.
Nina MoiseiwitschNicole ZwennesFania SzlamRoman M SniecinskiAshley C BrownPublished in: Journal of thrombosis and haemostasis : JTH (2022)
These differences noted in purified SARS-CoV-2-positive clots demonstrate that structural differences in fibrinogen, and not just differences in gross fibrinogen concentration, contribute to clinical differences in thrombotic features associated with COVID-19. These structural differences are at least in part mediated by differential sialylation.