Antibodies to synthetic peptide (125-148) of the alpha-subunit of human nicotinic acetylcholine receptor in sera from patients with myasthenia gravis.

Ohta, M; Ohta, K; Itoh, N; Nishitani, H; Hara, H; Hayashi, K · Neurology · 1990

cross_sectional · Level IV

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Abstract

We measured the amount of antibodies to a synthetic peptide that corresponds to the alpha-subunit residues Lys125-Thr148 of human acetylcholine receptor (AChR) in myasthenic sera. We detected anti-peptide antibodies in 52% (89/171) of the patients with myasthenia gravis (MG), but none in any of the healthy controls. Anti-peptide antibodies should provide a valuable immunologic parameter for the clinical evaluation of MG, but no apparent correlation was observed between the titers of anti-peptide and anti-AChR antibodies.

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