Thursday, Oct. 12, 2023 Caption: The image above shows fibrin deposits (red) associated with human lung epithelial cells infected with SARS-CoV-2. The same cells when uninfected are absent the fibrin deposits. (NIAID) NIAID-Led Study Identifies Potential Treatment NIAID scientists and colleagues have identified a cause of COVID-induced lung fibrosis, a severe and often fatal result of COVID-19 that leaves lungs scarred, clotted and leathery, and patients struggling to breathe. Their study, published in Nature Communications, also offers an explanation why traditional blood thinners have not helped patients – but why other treatments might. The study involved testing lung fluid samples from about two dozen COVID-19 donors, including acute, recovered, and healthy groups. This work showed that two proteins produced in the liver and associated with clotting increased 50 to 100 times their normal amount during SARS-CoV-2 infection. The study also identifies a mechanism in the airway that they believe explains why blood thinners such as heparin are ineffective against SARS-CoV-2. The researchers suggest evaluating alternative treatments that target the airway. |
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