Task: Answer Verification
Input (English): Question: Is soluble Nogo-A in CSF a useful biomarker for multiple sclerosis?
Answer: A 25 kD band is detectable on Western blots stained with Nogo-A antibody in almost all CSF specimens, but is darker in MS specimens. Our results suggest this band is immunoglobulin light chains rather than Nogo-A. It is not likely to be a useful biomarker for multiple sclerosis.
Output (English): no