Circulating levels of interleukin-17A, tumor necrosis factor-alpha, interleukin-18, interleukin-10, and cognitive performance of patients with relapsing-remitting multiple sclerosis
2018
AbstractMultiple sclerosis (MS) is associated with cytokine imbalance and high rate (40–70%) of cognitive impairment.The objective of this study is to investigate the relationship between serum concentrations of tumor necrosis factor (TNF)-alpha, interleukin (IL)-17A, IL-18, IL-10, and cognitive performance in patients with relapsing-remitting MS (RRMS).MethodsThe study comprised 159 patients with RRMS (mean age 40.08 ± 8.48 years) in remission phase and 86 age-, gender-, and education-matched healthy controls. Paced Auditory Serial Addition Test (PASAT), Symbol Digit Modalities test (SDMT), and Isaacs test were used for assessment of working memory, attention, visuo-perceptual abilities, information processing speed, and executive functions. Serum cytokine concentrations were measured by enzyme-linked immunosorbent assay (ELISA).ResultsPatients had significantly increased serum concentrations of TNF-alpha and IL-17A and decreased levels of IL-10 compared to the controls (p < 0.05). Negative correlation w...
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