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The Prothrombotic State Associated with SARS-CoV-2 Infection: Pathophysiological Aspects
Nicola Semeraro1, Mario Colucci1
1Dipartimento di Scienze Biomediche e Oncologia Umana, Università degli Studi di Bari Aldo Moro, Bari, Italy.
Severe coronavirus disease-2019 (COVID-19) causes a prothrombotic state through excessive inflammation and cellular changes, leading to thrombosis and organ dysfunction. Understanding these mechanisms is key for developing new diagnostic and therapeutic tools for COVID-19 patients.
Area of Science:
- Pathology
- Immunology
- Virology
Background:
- Severe coronavirus disease-2019 (COVID-19) is linked to significant microvascular and macrovascular thrombosis, increasing mortality.
- COVID-19 patients display laboratory findings consistent with a prothrombotic state.
Purpose of the Study:
- To elucidate the key events and cellular mechanisms underlying COVID-19-associated thrombotic complications.
- To explore the role of inflammatory mediators, viral infection, and host factors in promoting thrombosis.
Main Methods:
- Review and synthesis of current understanding of COVID-19 pathogenesis related to thrombosis.
- Analysis of cellular and molecular changes contributing to a prothrombotic state in COVID-19.
Main Results:
- Excessive inflammatory response to SARS-CoV-2 infection generates mediators that drive thrombosis.
- Key mechanisms include aberrant expression of prothrombotic factors, reduced anticoagulants, and suppressed fibrinolysis.
- Neutrophil extracellular traps and other cellular materials contribute to thrombosis.
Conclusions:
- COVID-19-associated thrombosis results from a complex interplay of inflammation, cellular dysfunction, and viral factors.
- Understanding these pathogenetic insights is crucial for developing novel diagnostic and therapeutic strategies for thrombosis in severe COVID-19.
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