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Neuromyelitis optica (NMO) is a particular disease within the NMOSD spectrum. It is characterised by optic neuritis and longitudinally extensive myelitis. In more than 80% of NMO cases, the cause is immunoglobulin G autoantibodies to aquaporin 4 ( anti-AQP4 ), the most abundant water channel protein in the central nervous system.
In neuromyelitis optica higher AQP4 autoantibody levels are associated with the occurrence of optic neuritis. [16] Less common causes are: papilledema, brain tumor or abscess in the occipital region, cerebral trauma or hemorrhage, meningitis, arachnoidal adhesions, sinus thrombosis, liver dysfunction, or late stage kidney disease.
Most patients are seronegative for NMO-IgG and GFAP, biomarkers for neuromyelitis optica. [3] ANA, indicative of autoimmune optic neuropathy, is also generally negative. [3] CSF can also be evaluated for oligoclonal bands typical of multiple sclerosis, which will not be present in CRION. [1]
the neuromyelitis optica (NMO) spectrum disorder; multiple sclerosis associated optic neuritis (MSON) unclassified optic neuritis (UCON) forms. [4] Medical examination of the optic nerve with an ophthalmoscope may reveal a swollen optic nerve, but the nerve may also appear normal.
Neuromyelitis optica, once considered a subtype of multiple sclerosis, is characterized by neuromyelitis optica IgG antibodies which selectively bind to aquaporin-4. [25] Optic neuritis is associated monocular vision loss, often initially characterized by a defect in color perception (dyschromatopsia) followed by blurring of vision and loss of ...
Inebilizumab, sold under the brand name Uplizna, is a medication for the treatment of neuromyelitis optica spectrum disorder (NMOSD) in adults. [8] [9] [5] Inebilizumab is a humanized mAb that binds to and depletes CD19+ B cells including plasmablasts and plasma cells.
Encephalomyelitis is inflammation of the brain and spinal cord.Various types of encephalomyelitis include: Acute disseminated encephalomyelitis or postinfectious encephalomyelitis, a demyelinating disease of the brain and spinal cord, possibly triggered by viral infection.
Satralizumab is indicated for the treatment of neuromyelitis optica spectrum disorder (NMOSD) in adults with a particular antibody – people who are anti-aquaporin-4 or AQP4 antibody-positive. [6] [14] NMOSD is a rare autoimmune disease of the central nervous system that mainly affects the optic nerves and spinal cord. [6]
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