Atlas One · Host Biology · Scale 07 — System

Myasthenia Gravis

Myasthenia gravis (MG) is an autoimmune NMJ disease; AChR antibodies (85%) activate complement → AChR destruction → fatigable weakness; MuSK antibodies (6%) cause IgG4-mediated dysfunction. Pyridostigmine, steroids, thymectomy, eculizumab, and efgartigimod are treatments.

Also known as: MG, myasthenia gravis, generalised myasthenia gravis, gMG, AChR antibody, MuSK antibody, seronegative MG, myasthenic crisis, ocular MG, neuromuscular junction disease, fatigable weakness, ptosis, diplopia

Scale 07 — SystemScale
draftStatus
2026-06-07Last Reviewed
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myasthenia-gravis

Myasthenia Gravis

Myasthenia gravis (MG) is an autoimmune NMJ disease; AChR antibodies (85%) activate complement → AChR destruction → fatigable weakness; MuSK antibodies (6%) cause IgG4-mediated dysfunction. Pyridostigmine, steroids, thymectomy, eculizumab, and efgartigimod are treatments.