Deficiencies in anti-acetylcholine receptor antibody measurement in myasthenia gravis.
retrospective_cohort · Level III
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- Record sourced from PubMed, PMID 1865211.
- Also identified by PMC identifier 488549.
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Abstract
In a retrospective case note study of 86 patients with myasthenia gravis, 60 had an anti-acetylcholine receptor antibody assay performed by the regional immunology laboratory. Antibody was detected in 38% which compares with 66-93% in other series. Whilst the use of staphylococcal protein A to precipitate the antibody-receptor complex, rather than anti-human immunoglobulin, may be partly responsible for this low sensitivity, other methodological problems are likely to exist. It is suggested that this potentially critical assay becomes a subject for regular audit.
Medical subject headings
- Autoantibodies
- Immunoassay
- Myasthenia Gravis
- Receptors, Cholinergic