Forskning ved Københavns Universitet - Københavns Universitet


Does diabetes modify the effect of heparin on plasma proteins? - A proteomic search for plasma protein biomarkers for diabetes-related endothelial dysfunction

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

  • Mette Soerensen
  • Birgit Debrabant
  • Ulrich Halekoh
  • Jacob Eifer Møller
  • Hassager, Christian
  • Martin Frydland
  • Jacob Hjelmborg
  • Hans Christian Beck
  • Lars Melholt Rasmussen

Aim: Heparin administration affects the concentrations of many plasma proteins through their displacement from the endothelial glycocalyx. A differentiated protein response in diabetes will therefore, at least partly, reflect glycocalyx changes. This study aims at identifying biomarkers of endothelial dysfunction in diabetes by statistical exploration of plasma proteome data for interactions between diabetes status and heparin treatment. Methods: Diabetes-by-heparin interactions in relation to protein levels were inspected by regression modelling in plasma proteome data from 497 patients admitted for acute angiography. Analyses were conducted separately for all 273 proteins and as set-based analyses of 44 heparin-relevant proteins identified by gene ontology analysis and 42 heparin-influenced proteins previously reported. Results: Seventy-five patients had diabetes and 361 received heparin before hospitalization. The proteome-wide analysis displayed no proteins with diabetes-heparin interaction to pass correction for multiple testing. The overall set-based analyses revealed significant association for both protein sets (p-values<2*10−4), while constraining on opposite directions of effect in diabetics and none-diabetics was insignificant (p-values = 0.11 and 0.17). Conclusions: Our plasma proteome-wide interaction approach supports that diabetes influences heparin effects on protein levels, however the direction of effects and individual proteins could not be definitively pinpointed, likely reflecting a complex protein-basis for glycocalyx dysfunction in diabetes.

TidsskriftJournal of Diabetes and its Complications
Udgave nummer6
StatusUdgivet - 2021

Bibliografisk note

Funding Information:
This work was supported by the Danish Heart Foundation , Odense University Hospital Research Fund (Grant R22-A1187-B615 ) and the Lundbeck Foundation .

Publisher Copyright:
© 2021 The Author(s)

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