Enzyme-linked immunosorbent assay for detection of antibodies to extractable muscle antigens in myasthenia gravis.
Acta Neurol Scand 1986;
73:599-601. [PMID:
3751500 DOI:
10.1111/j.1600-0404.1986.tb04606.x]
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Abstract
A purified citric acid soluble extract from human skeletal muscle (AEMA) and a phosphate-buffered saline extract from rabbit muscle acetone powder (EMA) were used to coat polystyrene beads in an enzyme-linked immunosorbent assay (ELISA). From 54 patients with myasthenia gravis, positive results were observed in 14. Five of 6 patients with thymoma had high levels of antibodies. With the diagnostic difficulties in detecting small and medium-sized thymoma, a sensitive assay for detection of antibodies to muscle antigen may be an important supplementary tool to detect tumors at early stages.
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