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Anti-Ro/SSA antibodies are found in 40–90% of patients with systematic lupus erythematosus (SLE). The antibodies can be detected years before symptoms of SLE surface, making them an effective diagnostic tool. [3] [9] In patients with SLE, high levels of Anti-Ro/SSA are correlated with elevated levels of IFN-α.
In a suspected antiphospholipid syndrome, lupus anticoagulant is generally tested in conjunction with anti-apolipoprotein antibodies and anti-cardiolipin antibodies, and diagnostic criteria require one clinical event (i.e. thrombosis or pregnancy complication) and two positive blood test results spaced at least three months apart that detect at ...
Ninety-six percent of patients with lupus induced by procainamide will have a positive test for anti-histone antibodies, and 100% of patients whose lupus was induced by penicillamine, isoniazid, or methyldopa will have a positive test for anti-histone antibodies. In 70% of patients with rheumatoid arthritis, Felty's syndrome, Sjogren's syndrome ...
Russell's viper, Daboia russelii Dilute Russell's viper venom time (dRVVT) is a laboratory test often used for detection of lupus anticoagulant (LA). It is an assessment of the time for blood to clot in the presence of a diluted amount of venom from Russell's viper (Daboia russelii), a highly venomous snake native to the Indian subcontinent and named after the herpetologist Patrick Russell.
Coeliac disease (antibody levels correlate with the level of intestinal damage [8] [9]), autoimmune hepatitis, gastric cancer: anti-CCP: cyclic citrullinated peptide: rheumatoid arthritis: Liver kidney microsomal type 1 antibody: autoimmune hepatitis [10] Lupus anticoagulant: Anti-thrombin antibodies: thrombin: systemic lupus erythematosus ...
the degree of modification of the capillaroscopy test (skin blood vessel study technique) of nail fold during follow-up. the presence of antinuclear antibodies. young age. [21] severe vitamin D deficiency. [22] the presence of anti-dsDNA, anti-Sm and anti-cardiolipin autoantibodies correlates with the development of systemic lupus erythematosus ...
A subset of AHAA appear to mimic the activity of lupus anticoagulant and increase Apo-H binding to phospholipids. [5] These two activities can be differentiated by the binding to Apo-H domains, whereas binding to the 5th domain promotes that anti-coagulant activity binding to the more N-terminal domains promotes lupus anticoagulant-like activities.
[51] [52] Levels of antibodies are analysed by performing dilutions on blood serum. An ANA test is considered positive if fluorescence is seen at a titre of 1:40/1:80. Higher titres are more clinically significant as low positives (≤1:160) are found in up to 20% of healthy individuals, especially the elderly.