Abstract:
:Acetylcholine receptor antibodies are very specific for myasthenia. During a large prospective cohort study of myasthenia, we encountered five patients, positive for acetylcholine receptor (AChR) antibodies by radioimmunoprecipitation assay (RIA), whose clinical course revealed diagnoses other than myasthenia. Two patients had transiently raised AChR antibodies associated with Guillain-Barré syndrome. Antibodies to clustered AChRs, in a live cell-based assay, were negative in all five patients, suggesting that results from the RIAs were false-positives. It is possible that the AChR antibodies detected by RIA in these cases were non-pathogenic, and directed to intracellular epitopes of the AChR.
journal_name
J Neuroimmunoljournal_title
Journal of neuroimmunologyauthors
Maddison P,Sadalage G,Ambrose PA,Jacob S,Vincent Adoi
10.1016/j.jneuroim.2019.04.001subject
Has Abstractpub_date
2019-07-15 00:00:00pages
69-72eissn
0165-5728issn
1872-8421pii
S0165-5728(19)30119-5journal_volume
332pub_type
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