Vitamin D deficiency can occur for a number of reasons: You don't consume the recommended levels of the vitamin over time. This is likely if you follow a strict vegan diet, because most of the natural sources are animal-based, including fish and fish oils, egg yolks, fortified milk, and beef liver.
NP_032898.2. Tissue plasminogen activator (abbreviated tPA or PLAT) is a protein involved in the breakdown of blood clots. It is a serine protease (EC 3.4.21.68) found on endothelial cells, the cells that line the blood vessels.
Medication Treatment with Alteplase IV r-tPA. 1  Considered the gold standard,tissue plasminogen activator (or Alteplase IV r-tPA) is the only FDA-approved treatment for ischemic strokes. 2  When promptly administered, it can save lives and reduce the long-term effects of stroke. Alteplase IV r-tPA is given through an IV in the arm, also known tPA, and works by dissolving the clot and improving blood flow to the part of the brain being deprived of blood flow.