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Treatment of HUVECs with plasma from COVID-19 patients stimulates glycocalyx shedding but does not decrease cell viability. (A) Lactate dehydrogenase (LDH) levels and (B) heparan sulfate proteoglycans measured in supernatant from HUVECs without any treatment (Control, n = 6), HUVECs treated with plasma from healthy subjects (n = 6) or plasma from COVID-19 patients (n = 8). Data are shown as mean ± SEM. Student's t-test. *p < 0.05.
