Autoimmune Diseases Flashcards
What is the incidence of SLE?
1/2500 Americans (common)
What does SLE stand for?
Systemic Lupus Erythematous
What is the the fundamental defect in SLE?
Failure to maintain self-tolerance
What are environmental factors for SLE?
Female sex hormones, UV light, and drugs (procainamide and hydralazine)
What are the principle targets of SLE?
Skin, kidneys, joints, heart, and serosal membranes
What are the four most prevalent clinical manifestation of SLE?
Hematologic (100%), arthritis (90%), skin (85%), and fever (83%)
What are the 11 diagnostic criteria for SLE?
Malar rash, discoid rash, photosensitivity, oral ulcers, arthritis, serositis, renal disorder, neurological disorder, blood disorder, immunologic disorder, antinuclear antibody
What percent of SLE patients have a positive ANA?
50%
What are the five treatments discussed for SLE?
NSAIDs, antimalarials (hydroxychloroquine), corticosteroids (prednisone), rituximab, immunosuppressive therapies (methotrexate, azathioprine)
What kind of drug is rituximab?
Anti-CD20, trade name Rituxan
What diseases are associated with the B27 allele in MHC?
Acute uveitis, ankylosing spondylitis (84.4x)
What diseases are associated with the DQ allele in HLA?
Diabetes, rheumatoid arthritis, and systemic lupus erythematous
What diseases are associated with the DR alleles of HLA?
Chronic active hepatitis, rheumatoid arthritis, type one diabetes, temporal arteritis, Graves’ disease, and multiple sclerosis