2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
ntshav txhaws cov proteins tsim thrombin, ib qho enzyme uas hloov fibrinogen rau fibrin, thiab cov tshuaj tiv thaiv uas ua rau tsim cov fibrin clot.
Dab tsi enzyme hloov fibrinogen rau fibrin?
Nyob ntawm cov kauj ruam enzymatic, muaj thrombin- catalyzed cleavage ntawm fibrinopeptides ntawm fibrinogen los tsim cov fibrin monomer. Thrombin yog ib qho tshwj xeeb serine protease thaum ua kom nws cov zymogen, prothrombin, ib txwm muaj nyob rau hauv cov ntshav.
Qhov twg fibrinogen hloov mus rau fibrin?
fibrin tsim
chains; Nws yog tsim los ntawm fibrinogen, ib qho protein uas muaj kuab heev uas yog tsim los ntawm lub siab thiab pom hauv cov ntshav plasma. Thaum cov ntaub so ntswg puas ua rau los ntshav, fibrinogen hloov dua siab tshiab ntawm lub qhov txhab rau hauv fibrin los ntawm kev ua ntawm thrombin, ib qho enzyme.
Leej twg secretes fibrinogen?
Fibrinogen yog tsim thiab tso rau hauv cov ntshav feem ntau los ntawm daim siab hepatocyte cells.
Qhov twg ua rau hloov pauv ntawm fibrinogen rau fibrin?
Fibrinogen (Factor I) yog 340-kDa glycoprotein uas yog tsim los ntawm daim siab (41). Nws yog qhib rau fibrin los ntawm thrombin, nthuav tawm ntau qhov chaw polymerization uas tau hla mus rau qhov tsis txaus ntseeg fibrin clot nyob rau hauv kev koom tes ntawm activated factor XIII (41, 42).
Pom zoo:
Cov ntshav twg hloov pauv fibrinogen rau fibrin?
ntshav txhaws cov proteins tsim thrombin, ib qho enzyme uas hloov fibrinogen rau fibrin, thiab cov tshuaj tiv thaiv uas ua rau tsim cov fibrin clot. Yuav ua li cas fibrinogen hloov mus rau fibrin? Fibrinogen yog ib qho macromolecule soluble, tab sis tsim cov hlab ntsha tsis sib haum lossis gel ntawm kev hloov mus rau fibrin los ntawm kev ua ntawm serine protease thrombin, uas yog qhib los ntawm cascade ntawm cov tshuaj tiv thaiv enzymatic.
Yuav ua li cas txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau pom kev pom?
Txawm li cas los xij, corneal collagen cross-linking - cov txheej txheem qib siab tau pom zoo los ntawm US Food and Drug Administration (FDA) hauv xyoo 2016 - tuaj yeem txhim kho qhov pom kev hauv cov neeg mob txhua hnub nyoog. Corneal collagen cross-linking (CXL) tsis yog kho rau keratoconus, tab sis nws tuaj yeem pab tiv thaiv tus mob kom tsis txhob mob hnyav.
Qhov kev hloov pauv no puas yuav ua rau muaj kev hloov pauv hloov pauv?
Yog li, yog tias muaj kev hloov pauv, piv txwv li, kev ntxig lossis tshem tawm ntawm nucleotide, tshwm sim, qhov no tuaj yeem ua rau kev hloov pauv ntawm kev nyeem ntawv. Nws hloov tag nrho cov amino acid ib ntus. Cov kev hloov pauv no yog hu ua frameshift mutation (tseem hu ua kev nyeem ntawv hloov pauv, nyeem ntawv hloov pauv, lossis framing yuam kev).
Qhov twg yog qhov kev hloov pauv hloov pauv hloov pauv?
Semiconservative replication piav qhia txog cov txheej txheem ntawm DNA replication nyob rau hauv tag nrho cov paub hlwb. DNA replication tshwm sim ntawm ntau lub hauv paus pib ntawm kev rov ua dua raws DNA qauv strand. Raws li DNA ob chav helix yog unwound by helicase, replication tshwm sim nyias ntawm txhua tus qauv strand nyob rau hauv antiparallel cov lus qhia.
Qhov kev hloov pauv twg yog xav tias yuav cuam tshuam los ntawm kev hloov pauv hloov pauv?
Dependent Variable Qhov sib txawv uas nyob ntawm lwm yam uas ntsuas. Cov kev hloov pauv no yuav tsum tau hloov pauv raws li qhov kev sim ua haujlwm ntawm tus kheej hloov pauv lossis hloov pauv. Nws yog cov nyhuv presumed. Qhov kev tshawb fawb hloov pauv twg yog qhov tshwm sim?
