Search results for "Blood stasis"
showing 3 items of 3 documents
Hydrodynamic liver gene transfer mechanism involves transient sinusoidal blood stasis and massive hepatocyte endocytic vesicles
2005
The present study contributes to clarify the mechanism underlying the high efficacy of hepatocyte gene transfer mediated by hydrodynamic injection. Gene transfer experiments were performed employing the hAAT gene, and the efficacy and differential identification in mouse plasma of human transgene versus mouse gene was assessed by ELISA and proteomic procedures, respectively. By applying different experimental strategies such as cumulative dose-response efficacy, hemodynamic changes reflected by venous pressures, intravital microscopy, and morphological changes established by transmission electron microscopy, we found that: (a) cumulative multiple doses of transgene by hydrodynamic injection…
COVID ‐19, thromboembolic risk, and Virchow's triad: Lesson from the past
2020
Abstract COronavirus Infectious Disease which started in 2019 (COVID‐19) usually presents with the signs and symptoms of pneumonia. However, a growing number of recent reports highlight the fact that the infection may be by far more than only a respiratory disease. There is evidence of an increased thromboembolic risk in COVID‐19 patients, with a variety of manifestations in terms of ischemic stroke, deep vein thrombosis, acute pulmonary embolism, acute myocardial infarction, systemic arterial embolism, and placental thrombosis. The German physician Rudolph Virchow, about two centuries ago, described three pivotal factors contributing together to thromboembolic risk: endothelial injury, hyp…
Does aspirin save lives in patients with COVID-19?
2021
‘An aspirin a day keeps the heart attack away’, is this also true in the prevention of thrombotic events associated with COVID-19? The rising COVID-19 pandemic has led to much work in the understanding of the pathophysiology of the disease. COVID-19 infection is thought to be an endothelial disease. Supporting this concept, it has been suggested that infection with SARS-CoV-2, the aetiological agent for COVID-19 infection, leads to a state mimicking Virchow’s triad, that is, vascular endothelial injury, blood stasis and clotting in concert with systemic inflammation resulting in systemic thrombosis. In keeping with this concept, moderately and critically ill patients with COVID-19 have been…