Seronegative Neuromyelitis Optica Spectrum - The challenges on disease definition and pathogenesis



Document title: Seronegative Neuromyelitis Optica Spectrum - The challenges on disease definition and pathogenesis
Journal: Arquivos de neuro-psiquiatria
Database: PERIÓDICA
System number: 000377550
ISSN: 0004-282X
Authors: 1
2
3
1
1
Institutions: 1Tohoku University, School of Medicine, Sendai, Miyagi. Japón
2Universidade de Sao Paulo, Faculdade de Medicina, Sao Paulo. Brasil
3Universidade Federal de Minas Gerais, Faculdade de Medicina, Belo Horizonte, Minas Gerais. Brasil
Year:
Season: Jun
Volumen: 72
Number: 6
Pages: 445-450
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Analítico, descriptivo
English abstract Neuromyelitis optica spectrum disorders (NMOSD) are characterized by severe optic neuritis and/or longitudinally extensive transverse myelitis, and some brain lesions are also unique to NMOSD. Serum autoantibodies against aquaporin-4 (AQP4) are detected in most cases of NMOSD. However, some patients with NMOSD remain seronegative despite repetitive testing during attacks with highly sensitive cell-based assays. The differential diagnosis of NMOSD is not restricted to multiple sclerosis and it includes many diseases that can produce longitudinally extensive myelitis and/or optic neuritis. We review the clinical features, imaging, and laboratory findings that can be helpful on the diagnostic work-up, discuss the differences between AQP4 antibody positive and negative patients with NMOSD, including features of NMOSD with antibodies against myelin oligodendrocyte glycoprotein
Portuguese abstract O espectro da neuromielite óptica (NMOSD) é caracterizado por ataques graves de neurite óptica e mielite. Anticorpos séricos contra a aquaporina-4 (AQP4) são usualmente presentes nestes pacientes. Entretanto, alguns pacientes com NMOSD são seronegativos mesmo com testes repetidos em amostras obtidas durante ataques usando métodos altamente sensíveis baseados em células. O diagnóstico diferencial não é restrito à esclerose múltipla e inclui muitas doenças que podem produzir mielite longitudinalmente extensa e/ou neurite óptica. São abordadas as características clínicas, de imagem e de laboratório que podem ser úteis no diagnóstico, as diferenças entre os pacientes positivos para o anticorpo anti-AQP4 e os negativos, incluindo as características dos pacientes com NMOSD que possuem anticorpos contra a glicoproteína associada ao oligodendrócito
Disciplines: Medicina
Keyword: Neurología,
Oftalmología,
Neuromielitis óptica,
Acuaporinas,
Anticuerpos,
Diagnóstico diferencial,
Glucoproteínas,
Oligodendrocitos
Keyword: Medicine,
Neurology,
Ophthalmology,
Psychiatry,
Optic neuromyelitis,
Aquaporins,
Antibodies,
Differential diagnosis,
Glycoproteins,
Oligodendrocytes
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