Um so fibrinolysis and coag Flashcards
Procoagulant - what are things that participate in coagulation?
Platelets, vWF, coagulation factors, collagen
What does a deficiency in procoagulants result in?
BLEEDING
(except XII, Ia, PK, HMWK dysfunction)
Anticoagulant - what are things that participate in the regulation or inhibition of coagulation?
Antithrombin, Protein C, Protein S, HC II, Protein Z/ZPI, TFPI
What is the function of antithrombin?
Inactivates IIa, Xa, (IXa, XIa, XIIa, plasmin)
What is the function of Protein C?
Inactivates thrombin and thrombomodulin
What activates Protein C?
Thrombin and thrombomodulin
What is the function of Protein S?
In its free form, it is a Protein C cofactor
What is the function of HCII?
It neutralizes IIa (thrombin)
What is the function of TFPI?
Inhibits TF3/VIIa complex
What does a deficiency in anticoagulants result in?
THROMBOSIS
Profibrinolytic - what are things that participate in fibrinolysis?
Plasminogen (to plasmin), tPA, Factor XIIa, Kallikren, Urokinase
What is the function of Plasminogen (to plasmin)?
Lyses fibrin and fibrinogen and inactivates Va, VIIIa, and XIIa
What is the function of tPA?
Catalyzes the conversion of plasminogen to plasmin
What is the function of kallikren?
Formation and release of bradykinin
What is the function of urokinase?
Enzyme that converts plasminogen to plasmin
What does a deficiency in profibrinolytics result in?
THROMBOSIS
Antifibrinolytic - what are things that participate in the regulation or inhibition of fibrinolysis?
PAI-1 & 2, Alpha-2 Antiplasmin, Alpha-2 Macroglobulin, TAFI, Factor XIa
What is the function of PAI-1 & 2?
Neutralize tPA
What is the function of Alpha-2 Antiplasmin?
Binds plasmin
What is the function of Alpha-2 Macroglobulin?
Binds plasmin
What is the function of TAFI?
Alters the fibrin clot so that it is less recognizable by plasmin
What is the function of XIa?
Enhances TAFI production
What does a deficiency in antifibrinolytics result in?
BLEEDING