Abstract
Axonal degeneration is now recognized as an important pathological feature of multiple sclerosis (MS). Acute axonal damage happens early in the disease course, and therefore early changes might occur in markers in body fluids, such as cerebrospinal fluid (CSF) and blood. In our study we investigated the relevance of serum and CSF markers for axonal damage in patients with clinically isolated syndrome indicative for MS. We measured the concentration of tau, phospho-tau, S100B, Amyloid beta and neuron specific enolase (NSE) in CSF and serum. Interestingly, the NSE concentration in CSF and serum was decreased in clinically isolated syndrome (CIS)-patients in comparison to the control group indicating reduced neuronal metabolic activity in the early stage of the disease. Concerning other biomarkers, we did not observe any changes in the concentrations between groups. Moreover, we did not detect any correlation between Expanded Disability Status Scale (EDSS) and the concentration of investigated proteins.
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