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Thrombomodulin is a glycoprotein on the surface of endothelial cells that, in addition to binding thrombin, regulates C3b inactivation by factor I. Mutations in the thrombomodulin gene (THBD) have also been reported to be associated with atypical hemolytic-uremic syndrome (aHUS). [10]
Activated protein C resistance (APCR) is a hypercoagulability (an increased tendency of the blood to clot) characterized by a lack of a response to activated protein C (APC), which normally helps prevent blood from clotting excessively.
PI3kinase. The pathophysiology of activated PI3K delta syndrome has several aspects. [2] The normal function has P110δ (PI3K) involved in immune system regulation. [9]P110δ effect is not limited to the immune system; P110δ has a presence in transformed epithelial cells and cell adhesion molecules (airway inflammation), and research has been done on the possibility of P110δ in the nervous ...
Atypical hemolytic uremic syndrome (aHUS), also known as complement-mediated hemolytic uremic syndrome (not to be confused with hemolytic–uremic syndrome), is an extremely rare, life-threatening, progressive disease that frequently has a genetic component. In most cases, it can be effectively controlled by interruption of the complement cascade.
Atypical HUS (aHUS) represents 5–10% of HUS cases [5] and is largely due to one or several genetic mutations that cause chronic, uncontrolled, and excessive activation of the complement system, [5] which is a group of immune signaling factors that promote inflammation, enhance the ability of antibodies and phagocytic cells to clear microbes ...
In immunology, cytokine release syndrome (CRS) is a form of systemic inflammatory response syndrome (SIRS) that can be triggered by a variety of factors such as infections and certain drugs. [3] It refers to cytokine storm syndromes (CSS) [ 4 ] and occurs when large numbers of white blood cells are activated and release inflammatory cytokines ...
When it is activated by proteolysis at residue Arg92 by the thrombin/thrombomodulin complex, CPB2 exhibits carboxypeptidase activity. Activated CPB2 reduces fibrinolysis by removing the fibrin C-terminal residues that are important for the binding and activation of plasminogen. [8] [9] Carboxypeptidases are enzymes that hydrolyze C-terminal ...
Protein C is vitamin K-dependent. Patients with Protein C deficiency are at an increased risk of developing skin necrosis while on warfarin. Protein C has a short half life (8 hour) compared with other vitamin K-dependent factors and therefore is rapidly depleted with warfarin initiation, resulting in a transient hypercoagulable state.