Cognitive profile in Egyptian multiple sclerosis patients has no correlation with serum neurofilament level

Abstract

Grey matter loss is thought to be the primary reason of cognitive disability in MS, with trans-synaptic axonal degeneration acting a supportive role. This research sought to evaluate cognitive profile of Egyptian multiple sclerosis patients and find out if it has a correlation with serum neurofilament or not. This was a cross-sectional research performed on a total of 60 patients with MS and 30 healthy controls. BICAMS battery of neuropsychological tests was used which includes SDMT, CVLT and BVMT. Serum NFLs using ELISA technique. Mean ± SD of NFL in RRMS was 82.25 ± 170.9, in PPMS was 22.08 ± 7.26, in SPMS was 95.82 ± 187.5, and in control group was 56.65 ± 125.4, there was high statistical substantial variations among the different groups while there was non-statistical variation between RRMS and PPMS groups, also there was no variation between PPMS and SPMS with regard to serum level of NFL. There is no significant correlation between the NFL and different cognitive tests. Since sNfL did not strongly connect with cognitive function in MS patients, it is possible that it cannot be used as a substitute indicator for neuropsychological state in these groups.