Journal
JOURNAL OF PERSONALIZED MEDICINE
Volume 13, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/jpm13030382
Keywords
COVID-19; biomarkers; chronic kidney disease; mortality; acute kidney injury; uNGAL; IL-6; uKIM1; CT severity score
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In this study, various plasma and urinary biomarkers were assessed in COVID-19 patients, and their correlation with outcomes (death, AKI) was investigated. The findings showed that certain biomarkers, particularly IL-6, were significantly associated with mortality and AKI. However, the prediction of AKI was not possible. Additionally, the severity score from chest CT-scan was strongly linked to mortality.
In a prospective, observational, non-interventional, single-center study, we assessed various plasma and urinary biomarkers of kidney injury (neutrophil gelatinase-associated Lipocain [NGAL], kidney-injury molecule-1 [KIM-1], and interleukin-18 [IL-18]); inflammation (IL-6, C-reactive protein [CRP]); plus angiotensin converting enzyme 2 (ACE2) in 120 COVID-19 patients (of whom 70 had chronic kidney disease (CKD) at emergency-department (ED) admission). Our aim was to correlate the biomarkers with the outcomes (death, acute kidney injury [AKI]). All patients had received a chest-CT scan at admission to calculate the severity score (0-5). Biomarkers were also assessed in healthy volunteers and non-COVID-19-CKD patients. These biomarkers statistically differed across subgroups, i.e., they were significantly increased in COVID-19 patients, except for urinary (u)KIM1 and uIL-18. Amongst the biomarkers, only IL-6 was independently associated with mortality, along with AKI and not using remdesivir. Regarding the prediction of AKI, only IL-6 and uKIM1 were significantly elevated in patients presenting with AKI. However, AKI could not be predicted. Having high baseline IL-6 levels was associated with subsequent ventilation requirement and death. The mortality rate was almost 90% when the chest CT-scan severity score was 3 or 4 vs. 6.8% when the severity score was 0-2 (p < 0.0001).
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