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Anti-centromere antibodies are found in approximately 60% of patients with limited systemic scleroderma and in 15% of those with the diffuse form of scleroderma. The specificity of this test is >98%. Thus, a positive anti-centromere antibody finding is strongly suggestive of limited systemic scleroderma.
Main antinuclear antibody patterns on immunofluorescence. [4] CREST syndrome typically displays the centromere pattern. CREST is not easily diagnosed as it closely mimics symptoms of other connective tissue and autoimmune diseases. Diagnoses are usually given when a patient presents two or more of the five major clinical symptoms. [5]
There are many subtypes of ANAs such as anti-Ro antibodies, anti-La antibodies, anti-Sm antibodies, anti-nRNP antibodies, anti-Scl-70 antibodies, anti-dsDNA antibodies, anti-histone antibodies, antibodies to nuclear pore complexes, anti-centromere antibodies and anti-sp100 antibodies. Each of these antibody subtypes binds to different proteins ...
Of the antibodies, 90% have a detectable antinuclear antibody. Anticentromere antibody is more common in the limited form (80–90%) than in the diffuse form (10%), and anti-scl70 is more common in the diffuse form (30–40%) and in African-American patients (who are more susceptible to the systemic form). [26]
However, CREST syndrome is more closely associated with anti-centromere antibodies. [3] Scl-70 antibodies are associated with more severe scleroderma disease. [4] Anti-topoisomerase antibodies can be classified according to their immunoglobulin class (IgM, IgG or IgA).
A study conducted in 2018 screened patients with wheat related disorders for 10 anti-ENA antibodies. SSA (Ro) SSB (La) RNP/Sm; Jo-1; Sm; Scl-70; Chromatin; Centromere; Histone; RNA polymerase III; 73% of celiac disease subjects tested positive for anti-histone and was the most prevalent, which is typically associated with drug-induced lupus ...
Prosecutors charged an Oklahoma City police officer with felony assault on Thursday after he slammed a 71-year-old man to the ground, breaking his neck, following an argument over a traffic ticket.
Laboratory testing can show antitopoisomerase antibodies, like anti-scl70 (causing a diffuse systemic form), or anticentromere antibodies (causing a limited systemic form and the CREST syndrome). Other autoantibodies can be seen, such as anti-U3 or anti-RNA polymerase. [29] Antidouble-stranded DNA autoantibodies are likely to be present in serum.