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    Home > Active Ingredient News > Study of Nervous System > JNNP: Clinical value of cellular assays in the characterization of seronegative myasthenia gravis

    JNNP: Clinical value of cellular assays in the characterization of seronegative myasthenia gravis

    • Last Update: 2022-08-19
    • Source: Internet
    • Author: User
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    Myasthenia gravis (MG), the most common disorder of the neuromuscular junction (NMJ), is caused by autoantibodies that impair neuromuscular transmission and cause voluntary muscle fatigue and weaknes.


    This improves the diagnostic yield of patients with seronegative MG (SNMG), especially in pediatric and ophthalmic case.


    Earliest serum samples from each SNMG patient and 50 healthy controls and 60 disease controls (aquaporin-positive neuromyelitis optica, multiple sclerosis, immune-mediated peripheral neuropathy, amyotrophic lateral sclerosis, myopathy) by l - Research on CBA.


    Of the 82 patients with SNMG, 53 (72%) had systemic disease and 29 (28%) had ocular diseas.


    Clinical characteristics and cell-based analysis (CBA) results of the SNMG cohort

    Despite advances in MG antibody testing, radioimmunoassay for AChR or muscle-specific kinase antibodies remains negative in approximately 10% of patient.


    Results of single and combined adult AChR/muscle-specific kinase antibody assays

    The lack of LRP4 antibodies in the population is not entirely unexpecte.


    About one-third of SNMG patients had AChR or muscle-specific kinase antibodies detected by l-CBA and effectively detected by combination l-CB.


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