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Despite the excellent performance of these immunoassays, for example CCP-assays, they only provide a sensitivity comparable with that of rheumatoid factor (RF). Moreover, analysis of the correlation of anti-CCP antibody titre with RA disease activity yielded conflicting results. [13] [14] However, novel test systems utilizing ACPA have been ...
Anti-MCV antibodies are a member of the ACPA family, a group of the so-called antibodies to citrullinated protein/peptide antigens. Rheumatoid arthritis is an autoimmune disorder . Detection of specific autoantibodies (antibodies directed against the body’s own tissue) such as rheumatoid factors and ACPAs may provide indication of the disease.
These tests are again positive in 61–75% of all RA cases, but with a specificity of around 95%. [78] As with RF, ACPAs are many times present before symptoms have started. [20] The by far most common clinical test for ACPAs is the anti-cyclic citrullinated peptide (anti CCP) ELISA.
Citrullination of arginine results in a monoisotopic mass increase of +0.984016 Da, which can be measured with mass spectrometry. The mass shift is close to the mass difference between the different peptide isotopes of +1.008665 which can be mistaken for a citrullinated peptide, especially on low-resolution instruments.
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Anti-cardiolipin antibodies (ACA) are antibodies often directed against cardiolipin and found in several diseases, including syphilis, [1] antiphospholipid syndrome, livedoid vasculitis, vertebrobasilar insufficiency, Behçet's syndrome, [2] idiopathic spontaneous abortion, [3] and systemic lupus erythematosus (SLE). [4]
The Dow Jones Industrial Average is chock-full of industry-leading blue chip stocks-- many of which pay dividends.But the Dow tends to underperform the S&P 500 during growth-driven rallies when ...