Image From collection/systemic_lupus_erythematosus_1_picture/pict ure.htm
“Prototype” autoimmune disease Typically seen in women of childbearing age (Mock, 2011) Cause officially unknown › Genetic predisposition coupled with environmental trigger? › More common in African American, Hispanic, Asian & Native American populations (National Institute of Arthritis, Musculoskeletal and Skin Diseases, 2009)
Defect: Mechanisms of lupus still poorly understood › Body loses “self-tolerance” › Abnormal DNA methylation leads to over-expression of genes resulting in autoimmunity › The body forms its own antibodies to nuclear components (antigens) › Abnormal T cells activate B cells, create autoantibodies Exacerbate autoimmune response and autoantibody formation (Gorelik & Richardson, 2010)
Autoantibodies Image from:
Characteristic “butterfly rash” first described by physician Rogerius in 13 th century Kaposi (1872) described other systemic features: arthritis & psychosis Current estimated incidence in US: per 100,000 cases Life expectancy: 5 years of diagnosis (10%) › Many deaths result from long term treatment & immunosuppression Current diagnostic tests: American College of Rheumatology criteria (4 of 11) › Antinuclear antibody (ANA), malar rash, discoid rash on cheeks, photosensitivity (sunlight), painless mucocutaneous ulcers, nonerosive arthritis (2+ joints), renal dysfunction (proteinuria/cellular casts), neurologic disorder (seizure/psychosis), serositis (pleuritis/pericarditis), hematologic disorders (anemia, thrombocytopenia, leukopenia), immunologic dysfunction Other tests › complete blood count; urinalysis; serum creatinine level; antiphospholipid antibodies
Can affect any bodily tissue › Can damage joints, heart, lungs, kidneys, blood vessels, skin and brain Symptoms are unpredictable and vary › Pain, swelling, fatigue, anemia, rashes/photosensitivity, ulcers and more… (UMMC, 2011) Image from: eshow/article.htm
90% of those with SLE have a 10 year survival rate, % have a 20 year survival rate (UMMC, 2011) › Kept unchecked, SLE can be fatal Why? The body is attacking itself! Widespread damage, often to major organs Image from: om/2011/07/lupus-rash-quest-for- truth.html
Study conducted in 2012 at University Medical Center Groningen, Netherlands Compared patients suffering from SLE and lupus nephritis to healthy controls Found that RAGE polymorphisms associated with pro-inflammatory response had significant involvement with susceptibility to SLE, severity of LN symptoms
Gorelik, G., & Richardson, B. (2010). Key role of erk pathway signaling in lupus. Autoimmunity, 43(1), doi: / Martens, HA, Nienhuis, HLA, Gross, S, der Steege, G van, Brouwer, E, Berden, JHM, Sévaux, RGL de, Derksen, RHWM, Voskuyl, AE, Berger, SP, Navis, GJ, Nolte, IM, Kallenberg, CGM, Bijl, M (2012). Receptor for advanced glycation end products (RAGE) polymorphisms are associated with systemic lupus erythematosus and disease severity in lupus nephritis. Lupus, 21(9). pg Mok, C. C. (2011). Epidemiology and survival of systemic lupus erythematosus in Hong Kong Chinese. Lupus, 20(7), doi: /
National Institute of Arthritis, Musculoskeletal and Skin Diseases. (2009, Oct.). What is lupus?. Retrieved from sp Robinson, M, Sheets Cook, S, and Currie, LM (2011). Systemic lupus erythematosus: A genetic review for advanced practice nurses. Journal of the American Academy of Nurse Practitioners, 23(12). pg UMMC. (2011). Systemic lupus erythematosus. Retrieved from htm