Autoimmune mediated neuromuscular junction defects

Current Opinion in Neurology
Maria Elena Farrugia, Angela Vincent

Abstract

This review summarizes the recent advances on pathogenesis of antibody-mediated disorders of the neuromuscular junction, and results of studies on clinical assessment and treatments. The incidence of myasthenia gravis, particularly in patients older than 50 years, is rising, and this is not solely due to improved disease recognition. It is uncertain how muscle specific tyrosine kinase (MuSK) antibody positive myasthenia gravis results in neuromuscular transmission failure since MuSK antibodies alter neuromuscular junction morphology without altering acetylcholine receptor numbers or turnover. Clinical tools have been developed that allow rapid and reliable disease assessment. The myasthenia gravis composite score addresses items commonly affected in myasthenia gravis, is sensitive to detect clinical change and helps guide the physician in therapy prescription. Immunosuppression remains the mainstay of myasthenia gravis treatment. Other therapies, such as rituximab, are increasingly prescribed for refractory myasthenia gravis, and drugs that inhibit complement are being explored in myasthenia gravis and Guillain-Barré syndrome (GBS). In Lambert-Eaton myasthenic syndrome (LEMS), SOX antibodies help distinguish between tumour and ...Continue Reading

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Autoimmune diseases occur as a result of an attack by the immune system on the body’s own tissues resulting in damage and dysfunction. There are different types of autoimmune diseases, in which there is a complex and unknown interaction between genetics and the environment. Discover the latest research on autoimmune diseases here.

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