Background Coronavirus disease 2019 (COVID-19) pneumonitis associated with severe respiratory failure is associated with high mortality. The pathogenesis of COVID-19 is associated with microembolism or microvascular endothelial injuries. Here, we report that syndecan-1 (SDC-1), a component of the endothelial glycocalyx, may be a biomarker of severity classification for COVID-19 related to endothelial injury. Methods and analysis We analyzed the data of COVID-19 patients for 1 year from February 2020 at Yokohama City University Hospital and Yokohama City University Medical Center Hospital. We selected COVID-19 patients who required admission care, including intensive care, and analyzed the classification of severe and critical COVID-19 retrospectively, using various clinical data and laboratory data with SDC-1 by ELISA. Results We analyzed clinical and laboratory data with SDC-1 in five severe COVID-19 and ten critical COVID-19 patients. In the two groups, their backgrounds were almost the same. In laboratory data, the LDH, CHE, and CRP levels showed significant differences in each group ( P = 0.032, P < 0.0001, and P = 0.007, respectively) with no significant differences in coagulation-related factors (platelet, PT-INR, d-dimer, ISTH score; P = 0.200, 0.277, 0.655, and 0.36, respectively). For the clinical data, the SOFA score was significantly different from admission day to day 14 of admission ( p < 0.0001). The SDC-1 levels of critical COVID-19 patients were significantly higher on admission day and all-time course compared with the levels of severe COVID-19 patients ( P = 0.009 and P < 0.0001, respectively). Conclusions Temporal change of SDC-1 levels closely reflect the severity of COVID-19, therefore, SDC-1 may be a therapeutic target and a biomarker for the severity classification of Covid-19.
【저자키워드】 COVID-19, severity, classification, glycocalyx, endothelial injury, Syndecan-1, 【초록키워드】 Coronavirus disease 2019, Biomarker, intensive care, severe COVID-19, severe respiratory failure, LDH, ELISA, severity of COVID-19, Platelet, university, Admission, Care, Critical, Analysis, COVID-19 patient, therapeutic target, SOFA score, endothelial, Factor, significant difference, two groups, no significant difference, Clinical data, city, laboratory data, high mortality, center, pathogenesis of COVID-19, CRP level, critical COVID-19 patients, FIVE, Course, Result, selected, analyzed, significantly, required, significantly higher, Temporal, critical COVID-19 patient, severe COVID-19 patient, Yokohama, 【제목키워드】 Biomarker, therapeutic target, Temporal,