Qhov twg tiv thaiv kev hloov pauv ntawm prothrombin mus rau thrombin hauv cov hlab ntsha uas tsis raug puas tsuaj? … Lus Qhia: Thaum lub sij hawm cov ntshav txhaws, prothrombin hloov mus rau hauv thrombin nrog kev pab los ntawm thrombokinase thrombokinase Thromboplastin (TPL) los yog thrombokinase yog sib tov ntawm ob qho tib si phospholipids thiab cov ntaub so ntswg pom muaj nyob rau hauv cov ntshav pab ntshav coagulation los ntawm catalyzing hloov ntawm prothrombin rau thrombin. Thaum tswj hwm hauv chav kuaj, ib qho derivative tuaj yeem tsim hu ua ib feem thromboplastin. … https://en.wikipedia.org › wiki › Thromboplastin
Thromboplastin - Wikipedia
thiab calcium ions. Heparin yog ib qho tshuaj tiv thaiv coagulant, uas tiv thaiv kev hloov pauv ntawm prothrombin mus rau thrombin.
Yuav ua li cas hloov prothrombin rau hauv thrombin?
Prothrombin hloov mus ua thrombin los ntawm ib qho ua kom ntshav hu ua factor X lossis prothrombinase; thrombin ces ua rau hloov fibrinogen, kuj muaj nyob rau hauv plasma, mus rau hauv fibrin, uas, ua ke nrog platelets los ntawm cov ntshav, tsim ib tug txhaws (ib txoj kev hu ua coagulation).
Qhov twg ntawm cov cation hauv qab no yog siv rau kev hloov pauv ntawm prothrombin rau hauv thrombin thaum lub sijhawm cov ntshav coagulation?
Factor Xa nyob rau hauv lub xub ntiag ntawm yam Va activates prothrombin rau thrombin, thiab ib qho ntshav tsim. Thrombin, lossis yam IIa, yog cov protein tseem ceeb tshaj plaws hauv txoj kev coagulation (Daim duab 26-1).
Yuav ua li cas ion yuav tsum tau ua kom hloov pauv ntawm prothrombin rau thrombin?
- Nyob rau theem thib ob, prothrombinase thiab Ca2 + catalyze hloov pauv ntawm prothrombin rau thrombin. - Hauv theem thib peb, thrombin, nyob rau hauv lub xub ntiag ntawm Ca2+, converts fibrinogen, uas yog soluble, mus xoob fibrin threads, uas yog insoluble.
Platelets tso prothrombin?
Cov platelets (los yog cephalin) enormously accelerate transformation of prothrombin to thrombin, thiab qhov acceleration no zoo li lawv lub cev rôle hauv cov txheej txheem coagulation. 4. Raws li cov lus ceeb toom dhau los, platelets tsis tau pom tias muaj ntau npaum li cas ntawm prothrombin. 5.
