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Samenvatting Reumatoïde artritis

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samenvatting college reumatoïde artritis

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Reumatoïde artritis

- Auto immuun
- Chronische inflammatoire ziekte van perifere gewrichten
- Extra-articulaire manifestaties
- Onbekende oorzaak
- Therapie tot genezing niet mogelijk

Chronische systemische inflammatoire auto immuun aandoening
- Chronische ontsteking
- Antistoffen tegen eiwitten van het synoviaal vlies
- Symmetrisch
- Systemisch -> andere organen zijn betrokken bij proces (extra articulaire
verschijnselen)

Auto-immuun ziekte
- Immuunsysteem keert zich tegen lichaam
o Antistoffen tegen lichaamseigen weefsel
o Antistoffen tegen synoviaal membraan
o Synoviaal membraan wordt afgebroken
- Ontstekingsreactie
o Gevolg van schade aan cellen en weefsels
o Bij RA is een ontsteking gevolg van afbraak synoviale vlies door antistoffen
o Ontsteking van het synoviale vlies (synovitis)

Pathofysiologie synovitis
- Ontsteking synoviaal weefsel
o Infiltratie van ontstekingscellen
o Macrofagen, mestcellen en lymfocyten
- Productie autoantilichamen
- Pannus – enzym vorming
- Afbraak synovium
- Schade aan het gewrichtskapsel
- Afbraak van het kraakbeenweefsel en erosie

, Ontstekingsreactie
- Chemische verandering
o Toename doorbloeding (roodheid=rubor)
o Mestcellen die histamine en heparine afgeven
- Aantrekken van fagocyten (leukocyten)
- Cytokinen afgifte
o Activeren van immuunreactie
o Macrofagen in de weefsel
 Verwijderen beschadigd weefsel
 Vallen vreemde indringers aan
 Verwijderen van immuuncomplexen
- Vorming van stolsels
- Verwijdering van het stolsel
- Vorming van litteken weefsel

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Uploaded on
August 29, 2023
Number of pages
6
Written in
2019/2020
Type
SUMMARY

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