multiple sclerosis (MS) may induce an immune response. We examined CSF and serum
NFL levels and IgG antibodies against NFL in 19 patients with a clinically isolated syndrome
(CIS) early converted into MS, 20 CIS-non-converters, 23 MS patients and 32 controls. CSF
NFL levels were significantly higher in all patient groups. The highest CSF or intrathecally
(IT) synthesized anti-NFL antibodies and CSF/serum ratios of anti-NFL antibodies were …