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Tissue-type plasminogen activator. Tissue-type plasminogen activator, short name tPA, is a protein that facilitates the breakdown of blood clots. It acts as an enzyme to convert plasminogen into its active form plasmin, the major enzyme responsible for clot breakdown. It is a serine protease ( EC 3.4.21.68) found on endothelial cells lining the ...
Alteplase, sold under the brand name Activase among others, is a biosynthetic form of human tissue-type plasminogen activator (t-PA). It is a thrombolytic medication used to treat acute ischemic stroke, acute ST-elevation myocardial infarction (a type of heart attack), pulmonary embolism associated with low blood pressure, and blocked central venous catheter. [5]
The effectiveness and risk of tPA is strongly correlated with the delay between stroke onset and tPA delivery ("door-to-needle time"). Current standards recommend for tPA to be delivered within 4,5 hours of onset, while best results occur when treatment is delivered within 90 minutes of onset. [15] Since the NIHSS has been established as a ...
A cerebroprotectant (formerly known as a neuroprotectant) is a drug that is intended to protect the brain after the onset of acute ischemic stroke. [1] As stroke is the second largest cause of death worldwide and a leading cause of adult disability, over 150 drugs have been tested in clinical trials to provide cerebroprotection.
Each year, nearly 800,000 people suffer a stroke in the United States. That’s about one stroke every 40 seconds. When it comes to stroke, time and treatment are key
Plasminogen activators are serine proteases that catalyze the activation of plasmin via proteolytic cleavage of its zymogen form plasminogen. Plasmin is an important factor in fibrinolysis, the breakdown of fibrin polymers formed during blood clotting. There are two main plasminogen activators: urokinase (uPA) and tissue plasminogen activator ...
Reperfusion therapy is a medical treatment to restore blood flow, either through or around, blocked arteries, typically after a heart attack ( myocardial infarction (MI)). Reperfusion therapy includes drugs and surgery. The drugs are thrombolytics and fibrinolytics used in a process called thrombolysis.
Tenecteplase. Tenecteplase, sold under the trade names TNKase, Metalyse and Elaxim, is an enzyme used as a thrombolytic drug . Tenecteplase is a tissue plasminogen activator (tPA) produced by recombinant DNA technology using an established mammalian cell line ( Chinese hamster ovary cells ). Tenecteplase is a 527 amino acid glycoprotein ...