Myositis Antibodies
Immunology
Sample and container requirements
Serum
Minimum volume required
4 ml Blood
Special requirements
None
Patient preparation
None
Sample viability
Store at 4oC
Turnaround time
14 days
Reference range
Interperative assay , results reported as positive, negative or equivocal.
Clinical guidance
The EUROLINE Autoimmune Inflammatory Myopathies 16 Ag (IgG) measures IgG autoantibodies to 15 different antigens: MI-2α, Mi-2β, Ku, PM-Scl75, Jo-1, SRP, PL-7, PL-12, EJ, OJ, Ro-52,TIF-1γ, MDA5, NXP2 and SAE1 in serum or plasma. It is primarily used for the diagnosis of dermato- and polymyositis, idiopathic myositis, anti-synthetase syndrome and overlapping syndrome. Myositis is an inflammatory disease of skeletal muscles, which may be hereditary or can be triggered by infections, toxins or immune system disorders. Autoimmune myostides occur with an incidence of 0.1 to 1/100,000/year, a prevalence of 1 to 6/100,000 and a male: female ratio of 1:2.
Notes
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This information was last updated on 17 August 2026