Preprint Article Version 2 Preserved in Portico This version is not peer-reviewed

Longitudinal Assessment of Plasma Syndecan-1 Predicts 60-Day Mortality in Patients with COVID-19

Version 1 : Received: 4 January 2023 / Approved: 4 January 2023 / Online: 4 January 2023 (04:37:40 CET)
Version 2 : Received: 7 January 2023 / Approved: 9 January 2023 / Online: 9 January 2023 (03:21:59 CET)

A peer-reviewed article of this Preprint also exists.

Zhang, Q.; Ye, Z.; Bignotti, A.; Zheng, X.L. Longitudinal Assessment of Plasma Syndecan-1 Predicts 60-Day Mortality in Patients with COVID-19. J. Clin. Med. 2023, 12, 552. Zhang, Q.; Ye, Z.; Bignotti, A.; Zheng, X.L. Longitudinal Assessment of Plasma Syndecan-1 Predicts 60-Day Mortality in Patients with COVID-19. J. Clin. Med. 2023, 12, 552.

Abstract

Background: Endotheliopathy is common pathologic findings in patients with acute and long COVID-19. It may be associated with disease severity and predispose to long-term complications. Plasma levels of a proteoglycan syndecan-1 are found to be significantly elevated in patients with COVID-19, but its roles in assessing the disease severity and predicting long-term outcome are not fully understood. Methods: 124 consecutive hospitalized patients with SARS-CoV2 infection were prospectively enrolled and blood samples were collected on admission (T1), 3-4 days following treatment (T2), and 1-2 days prior to discharge or death (T3). Plasma levels of syndecan-1 were determined using an immunosorbent assay; various statistical analyses were performed to determine the association between plasma syndecan-1 levels and disease severity or the 60-day mortality rate. Results: Compared with those in the healthy controls, plasma levels of syndecan-1 in patients with critical COVID-19 were significantly higher (p<0.0001). However, there was no statistically significant difference among patients with different disease severity (p>0.05), resulting from large individual variability. Longitudinal analysis demonstrated that while the levels fluctuated during hospitalization in all patients, plasma syndecan-1 levels were persistently elevated from baseline in critical COVID19 patients. Cox proportional hazard regression analyses revealed that elevated plasma levels of syndecan-1 (>260 ng/mL at T1, >1018 ng/mL at T2, and >461 ng/mL at T3) were significantly associated with the 60-day mortality rate. Conclusions: Endotheliopathy, marked by glycocalyx degradation and elevated plasma syndecan-1, occurs in nearly all hospitalized patients with SARS-CoV2 infection; the elevated plasma syndecan-1 is associated with increased mortality in COVID-19 patients.

Keywords

COVID-19; endothelial dysfunction; glycocalyx degradation; sydencan-1; and mortality

Subject

Medicine and Pharmacology, Pathology and Pathobiology

Comments (1)

Comment 1
Received: 9 January 2023
Commenter: X. Long Zheng
Commenter's Conflict of Interests: Author
Comment: There are revised figures and description of the results based on the revised statistical analysis.
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