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. 1988 Jan;38(1):138-42.
doi: 10.1212/wnl.38.1.138.

Neonatal myasthenia gravis: a new clinical and immunologic appraisal on 30 cases

E Morel  1 , B Eymard, B Vernet-der Garabedian, C Pannier, O Dulac, J F Bach
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Neonatal myasthenia gravis: a new clinical and immunologic appraisal on 30 cases

E Morel et al. Neurology. 1988 Jan.

Abstract

Anti-acetylcholine receptor (AChR) antibody titers, toxin binding blocking antibody, functional activity of serum on rat myotube cultures, IgG subclasses, and clinical data were studied in relation to the onset of neonatal myasthenia gravis (NMG) in 30 children of myasthenic mothers. Fourteen had NMG, including 4 atypical cases. Anti-AChR antibody titer was the best indication of NMG onset. NMG in a previous baby was also predictive. Pattern of IgG subclasses, presence of toxin-binding blocking antibodies, and serum functional activity were less predictive, but cast light on the mechanism of anti-AChR antibody pathogenicity.

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