Lifeways of worldwide people have changed dramatically amid the coronavirus disease 2019 (COVID-19) pandemic, and public health is at stake currently. In the early stage of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, fibrinolytic system is mostly inhibited, which is responsible for the development of hypofibrinolysis, promoting disseminated intravascular coagulation, hyaline membrane formation, and pulmonary edema. Whereas the common feature and risk factor at advanced stage is a large amount of fibrin degradation products, including D-dimer, the characteristic of hyperfibrinolysis. Plasmin can cleave both SARS-CoV-2 spike protein and γ subunit of epithelial sodium channel (ENaC), a critical element to edematous fluid clearance. In this review, we aim to sort out the role of fibrinolytic system in the pathogenesis of COVID-19, as well as provide the possible guidance in current treating methods. In addition, the abnormal regulation of ENaC in the occurrence of SARS-CoV-2 mediated hypofibrinolysis and hyperfibrinolysis are summarized, with the view of proposing an innovative view of epithelial ion transport in preventing the dysfunction of fibrinolytic system during the progress of COVID-19.
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http://dx.doi.org/10.1016/j.biopha.2023.114863 | DOI Listing |
Alzheimers Dement
December 2024
Washington University School of Medicine, Saint Louis, MO, USA.
Implementation of amyloid-lowering treatments in clinical care for early symptomatic Alzheimer disease (AD) raises many challenges. The Memory Diagnostic Center (MDC), the dementia specialty practice associated with Barnes-Jewish Hospital/Washington University School of Medicine (BJH/WUSM), has 16 clinicians (12 physicians and 4 advanced practice providers) who see over 2,000 patients with memory disorders per year. BJH is the academic flagship of BJC HealthCare (BJC), an integrated health system in St.
View Article and Find Full Text PDFLife (Basel)
November 2024
Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, 20157 Milan, Italy.
Background: Although more than four years have passed since the pandemic began, SARS-CoV-2 continues to be of concern. Therefore, research into the underlying mechanisms that contribute to the development of the disease, especially in more severe forms, remains a priority. Sustained activation of the complement (CS), contact (CAS), and fibrinolytic and kinin-kallikrein systems (KKS) has been shown to play a central role in the pathogenesis of the disease.
View Article and Find Full Text PDFLab Chip
January 2025
Joint Department of Biomedical Engineering, North Carolina State University and University of North Carolina, Chapel Hill, 1840 Entrepreneur Dr., Raleigh, NC, 27695 USA.
Blood coagulation is a highly regulated injury response that features polymerization of fibrin fibers to prevent the passage of blood from a damaged vascular endothelium. A growing body of research seeks to monitor coagulation in microfluidic systems but fails to capture coagulation as a response to disruption of the vascular endothelium. Here we present a device that allows compression injury of a defined segment of a microfluidic vascular endothelium and the assessment of coagulation at the injury site.
View Article and Find Full Text PDFJ Pers Med
December 2024
Department of Anesthesiology and Intensive Care II, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania.
: Blunt thoracic trauma possesses unique physiopathological traits due to the complex interaction of immune and coagulation systems in the lung tissue. Hemogram-based ratios such as neutrophil-to-lymphocyte (NLR), platelet-to-lymphocyte (PLR), neutrophil-to-lymphocyte × platelet (NLPR) ratios have been studied as proxies for immune dysregulation and survival in trauma. We hypothesized that blunt thoracic trauma patients exhibit distinct patterns of coagulation and inflammation abnormalities identifiable by the use of readily available hemogram-derived markers.
View Article and Find Full Text PDFHaemophilia
December 2024
Institute of Experimental Hematology and Transfusion Medicine, Medical Faculty, University Hospital Bonn, University of Bonn, Bonn, Germany.
Introduction: Maintaining the balance between procoagulant and anticoagulant factors is essential for effective haemostasis. Emerging evidence suggests a modulation of bleeding tendency by factors in the anticoagulant and fibrinolytic systems.
Aim: This study investigates the clinical and laboratory characteristics of a family with combined von Willebrand disease (VWD) and antithrombin (AT) deficiency.
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