NF-LIGHT®: Ultra-Sensitive NFL Assay for Neurology Research
NF-LIGHT®, our Nfl assay, is an immunoassay kit for the ultra-sensitive measurement of neurofilament light levels in serum, plasma and…
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Multiple Sclerosis Journal | July 14, 2021
Aly L, Strauß EM, Feucht N, Weiß I, Berthele A, Mitsdoerffer M, Haass C, Hemmer B, Maier M, Korn T and Knier B
Multiple sclerosis (Houndmills, Basingstoke, England). 2021:13524585211028831
DOI: https://doi.org/10.1177/13524585211028831
Neuromyelitis optica spectrum disorders (NMOSD) are neuroinflammatory diseases of the central nervous system. Patients suffer from recurring relapses and it is unclear whether relapse-independent disease activity occurs and whether this is of clinical relevance.
To detect disease-specific alterations of the retinal vasculature that reflect disease activity during NMOSD.
Cross-sectional analysis of 16 patients with NMOSD, 21 patients with relapsing-remitting multiple sclerosis, and 21 healthy controls using retinal optical coherence tomography (OCT), optical coherence tomography angiography (OCT-A), measurement of glial fibrillary acidic protein (GFAP) serum levels, and assessment of visual acuity.
Patients with NMOSD but not multiple sclerosis revealed lower foveal thickness (FT) (p = 0.02) measures and an increase of the foveal avascular zone (FAZ) (p = 0.02) compared to healthy controls independent to optic neuritis. Reduced FT (p = 0.01), enlarged FAZ areas (p = 0.0001), and vessel loss of the superficial vascular complex (p = 0.01) were linked to higher serum GFAP levels and superficial vessel loss was associated with worse visual performance in patients with NMOSD irrespective of optic neuritis.
Subclinical parafoveal retinal vessel loss might occur during NMOSD and might be linked to astrocyte damage and poor visual performance. OCT-A may be a tool to study subclinical disease activity during NMOSD.
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NF-LIGHT®, our Nfl assay, is an immunoassay kit for the ultra-sensitive measurement of neurofilament light levels in serum, plasma and…
Our GFAP assay kit provides ultra-sensitive detection of Glial Fibrillary Acidic Protein in plasma and CSF for neurology research. Click…