Curs 2- plasma Flashcards
cine contribuie la osmolaritatea plasmei
Na, anionii, glucoza, specii azotate neproteice
Proteom
totalitatea proteinelor plasmatice
Proteinemie
concentratia plasmatica a proteinelor
Euproteinemia
6.5-8g/dl
Roluri generale proteine plasmatice
- Mentin vol plasm si contribuie la repartitia apei intre compartimente- pcOsm
- Mentin ph sg
- Transporta- lipide, me grele, ioni, bilirubina, hormoni lipidici, medicamente
- Coagulare/fibrinoliza
- Aparare - igg, lizozim, prot complement, lactoferina
- Genereaza vascozitatea sg
- Sursa de aa
- Enzime- gamaglutamilgransferaza, lizozim
Fractiuni proteice - electroforeza
albumina 56-60% alfa1 globuline 3-5% alfa2 globuline 6-8% beta globuline 10-14% gamma globuline 16-20%
Rol albumina
ment pres colo-osm, volum plasm
trasnport (bilirubina, medicamente, metale grele)
sursa de aa
Proteine de faza acuta
proteina C reactiva, fibrinogen, lectina, comp sist complement, ceruloplasmina, haptoglobina, hepcidina, peptidul corelat cu gena calcitoninei
Sisteme proteazice plasmatice
al coagularii, fibrinolizei, complement, kininoformator
Antiproteaze plasmatice
alfa1 antitripsina- inhiba tripsina si elastaza leucocitara
alfa 2 macroglobulina- inhiba factorii activati ai coagularii, plasmina, elastaza leucocitara si colagenaza
Transferina
electroforetice beta, preia Fe si il transporta
Ceruloplasmina
alfa2 globulina, fixeaza si transp Cu
Gammaglob
aparare imuna
Haptoglobina
alfa2 globulina, fixeaza Hb libera in plasma
Plasmafereza
purificarea sg de anticorpi din plasma