Tag S. David Hudnall MD

Hematologic cancer therapy

Key points Many forms of cancer chemotherapy are designed to inhibit tumor cell proliferation by interfering with DNA synthesis. Cancer chemotherapeutic agents can be classified as cell-cycle active agents and non–cell-cycle active agents; cell-cycle agents target actively proliferating cells, whereas…

Platelets

Key points Megakaryocytes in the bone marrow are stimulated by the liver-derived cytokine thrombopoietin to produce platelets by cytoplasmic budding. Platelets are small anucleate cytoplasmic fragments that circulate in the blood with a half-life of 8 to 10 days.. The…

Blood coagulation

Key points Liver-derived coagulation factors circulate in an inactive state and are activated in a cascading fashion, leading to thrombin-mediated fibrin formation. Thrombosis is triggered in most cases by vessel wall damage and exposure of blood to tissue factor, collagen,…