INFLAMATIA Flashcards

1
Q

Fractiunile c3b si C3bi

A

actioneaza ca opsonie

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2
Q

Deficit de C3b , c3bi

A

infectii severe ( neisseria meningitis, s penumonie )
- deficit de opsonizare
- scade formarea de C5a, compus cu proprietati chemotactice

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3
Q

C3a, c4a, c5a

A

anafilatoxine ce stimuleaza raspunsul vascular din inflamatie

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4
Q

C5a

A

are proprietetati chemotactice si creste adeziunea leucocitara

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5
Q

Complexul litic

A

C6c7c8
lezeaza membranele agentilor patogeni

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6
Q

DEficit de c1q

A

Infectii si hipogammaglobulinemie

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7
Q

deficit de c2 si c4

A

tulburari ca in LED
scade rata de eliminare a complexelor imune prin mecanism dependent de complement

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8
Q

deficit de c5

A

susceptibilitate la infectii bacteriene prin deficit de chemotaxie

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9
Q

deficit de complex litic
c6c7c8

A

deficit de liza mediata de complement si creste susceptibilitatea la infectii meningococice si gonococice

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10
Q

deficit de reglatori ai convertazelor c3, c5

A

HEMOGLOBINURIA PAROXISTICA NOCTURA
-distrugerea hematiilor prin mecanism dependent de complement –> ANEMIE HEMOLITIC CRONICA

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11
Q

DEFICIT de inhibitor C1

A

EDEM ANGIONEUROTIC EREDITAR
-excesul de activare a C1s duce la excesul de kinina –> crestere a permeabilitatii vasculare –> edem la nivelul tegumentelor, mucoasei digestive si a tractului respirator.

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12
Q

Una din cele mai importante clase de medicamente anti inflamatoare

A

INhibitori de ciclo-oxigenaza, care este enzima ce catalizeaza transformarea acidului arahidonic in prostaglandine.

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13
Q

La ce contribuie excesul de IL-1

A

La determinarea leziunilor din boala Alzheimer si ateroscleroza

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14
Q

Sindromul de activare macrofagica

A

Complicatie severa care poate surveni in bolile cronice reumatice la copil.
Este determinata de crestrea raspunsului inflamator al organismului din cauza hipersecretiei de citokine proinflamatorii precum : TNF - alfa, interferon-alfa, iL-6, IL-10, si M-CSF (macrofage-colony-stimulating factor) —-> insuf organica multipla si necroze tisulare —> citopenie, coagulopatie de consum, cresterea valorilor tg

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15
Q

Inflamazonnul

A

Se formeaza prin oligomerizarea receptorilor NOD-like de la nivelul citoplasmei. Compozitia lui depinde de factorii activatori.
Determina maturizarea IL-1beta si IL-18.
Determina piroptoza. (moarte celulara asociata cu un grad mare de inflamatie, acumulare de apa, ruptura membranei celulare)

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16
Q

Deficit de NO

A

predispune la infectii microbiene severe pentru ca scade citotoxicitatea NO dependenta

17
Q

NOS2 supraproductie

A
  • nitric oxid sintetaza inductibila
  • duce la exces de NO —> scaderea recrutarii leucocitelorin focarul inflamator si produce leziuni tisulare locale ( exemplu excesul de NO produce leziuni pancreatice si duce la diabet zaharat de tip 1)
  • exces de no indus amplifica si stresul oxidativ
18
Q

exces de sro

A

-lezeaza celulele endotelaile si creste permeabilitatea vasculara
-inactiveaza antiproteazele (ex proteine de faza acuta) si creste distrugerea matricei extracelulare
lezeaza si alte tipuri de celule