Prof Neil McHugh RA Flashcards
Autoimmune disease occur when there is dysregulation of the immune system with loss of ___-_____.
Self-tolerance
List some clinical symptoms common to all autoimmune Rheumatic diseases (6)
1) Malaise (general discomfort/unease)
2) Weight loss
3) Arthritis
4) Anaemia of chronic disease
5) Myalgia (pain in muscle)
6) Fatigue
RA is based upon the presence of _____ in at least one joint, the absence of an alternative diagnosis better explaining the ___ and achievement of a total score of at least _ (of a possible 10) on the ACR for Classification of RA
Synovitis
6
BSR (British Society for Rheumatology) diagnosis of RA states that persistent joint inflammation affecting at least _ joint areas, involvement of the meta___pop______ or meta____sop_____ joints or early morning stiffness of at least __ min duration.
3
metacarpophalangeal
metatarsophalangeal
30
RA increases with age until approx __ years of age and decreases thereafter.
75
What predisposing factors are associated with RA?
- ______ (virus, bacterium, smoking, periodontitis)
- Genetic (___-DRB1) - MHC Class II gene
- Hormones or hormonal deficiencies e.g more females with RA than males and disease subsides during _____
Environmental
HLA-DRB1 gene (HLA-DR4)
Pregnancy
Autoantibodies in RA:
RF (______ ____)
- Antibodies to Fc domain of Ig_
ACPA (Anti-______ protein _____)
Rheumatoid factor
IgG
Anti-Citrullinated protein antigen
Citrulline is a ____-______ modification of arginine
Post-translational modification
ACPA can be found up to __ years before onset of symptoms in RA
14 years
ACPA (Anti-citrullinated protein antibodies) predict ____ and _____ disease
Erosive and Progressive
In RA is there symmetrical or asymmetrical swelling in small joints?
Symmetrical
Lumps on the knuckles of a RA patients are called what?
Rheumatoid nodules
Due to inflammation of the ocular tissues, RA patients are more susceptible to WHAT?
Scleritis/episcleritis
What is periarticular osteopenia?
- Bone loss/thinning around joints
DAS28 (___ ____ ____ 28) looks at the total number of swollen/painful joints and levels of ESR and ___ and patient score.
The DAS28 score proves a number on a scale from 0 - __ which indicates current activity of the disease.
Disease Activity Score 28
CRP (C reactive protein)
10