Biomarkers associated with COVID-19 disease progression
Abstract
The coronavirus disease 2019 (COVID-19) pandemic is a scientific, medical, and social challenge. The complexity of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is centered on the unpredictable clinical course of the disease that can rapidly develop, causing severe and deadly complications. The identification of effective laboratory biomarkers able to classify patients based on their risk is imperative in being able to guarantee prompt treatment. The analysis of recently published studies highlights the role of systemic vasculitis and cytokine mediated coagulation disorders as the principal actors of multi organ failure in patients with severe COVID-19 complications. The following biomarkers have been identified: hematological (lymphocyte count, neutrophil count, neutrophil–lymphocyte ratio (NLR)), inflammatory (C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), procalcitonin (PCT)), immunological (interleukin (IL)-6 and biochemical (D-dimer, troponin, creatine kinase (CK), aspartate aminotransferase (AST)), especially those related to coagulation cascades in disseminated intravascular coagulation (DIC) and acute respiratory distress syndrome (ARDS). New laboratory biomarkers could be identified through the accurate analysis of multicentric case series; in particular, homocysteine and angiotensin II could play a significant role.
Glossary
Abbreviations
| ACE | angiotensin-converting enzyme |
| ALT | alanine aminotransferase |
| Ang | angiotensin |
| aPTT | activated partial thromboplastin time |
| ARDS | acute respiratory distress syndrome |
| AST | aspartate aminotransferase |
| AT2R | AT2 receptor |
| BK | bradykinin |
| CI | confidence interval |
| CK | creatine kinase |
| CKD | chronic kidney disease |
| COVID-19 | coronavirus disease 2019 |
| CRP | C-reactive protein |
| CT | computer tomography |
| CTL | cytotoxic T lymphocyte |
| DIC | disseminated intravascular coagulation |
| ESR | erythrocyte sedimentation rate |
| FDP | fibrin degradation product |
| G-CSF | granulocyte-colony stimulating factor |
| Hcy | homocysteine |
| HPLC | high-performance liquid chromatography |
| HR | hazard risk |
| ICU | intensive care unit |
| IL | interleukin |
| INF | interferon |
| IP | interferon-γ inducible protein |
| LDH | lactate dehydrogenase |
| MasR | Mas receptor |
| MCP | monocyte chemoattractant protein |
| MIP | macrophage inflammatory protein |
| MOF | multiple organ failure |
| NCP | novel coronavirus pneumonia |
| NK | natural killer |
| NLR | neutrophil–lymphocyte ratio |
| NO | nitric oxide |
| OR | odds ratio |
| ORF | open reading frame |
| PCT | procalcitonin |
| PLR | platelet-to-lymphocyte ratio |
| PT | prothrombin time |
| RAS | renin–angiotensin system |
| ROCK | RhoA/Rho kinase |
| S | spike |
| SARS-CoV-2 | severe acute respiratory syndrome coronavirus 2 |
| TNF | tumor necrosis factor |
| WBC | white blood cell |
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