Relationship between generalized epileptic seizure and neutrophil/lymphocyte ratio, platelet/lymphocyte ratio, and neutrophil mediated inflammation.
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Aim: There is a close relationship between systemic inflammation and epileptic seizure. Recently, neutrophil/lymphocyte ratio (NLR) and platelet/lymphocyte ratio (PLR) have been defined as significant inflammation biomarkers. In the present study, it was aimed to determine levels of NLR, PLR, and mean platelet volume (MPV) during generalized tonic clonic epileptic seizures, and to investigate their relationships with epileptic seizures.Methods: The present study was conducted on 72 patients with epilepsy who applied with primary and secondary generalized tonic clonic epileptic seizures according to classification of the International League Against Epilepsy (ILAE), and 72 healthy individuals as the control group. Neutrophil and lymphocyte counts, NLR, PLR, and MPV values of patients were evaluated both in acute (in the first hour of epileptic seizure) and subacute (in hour 72 of epileptic seizure) phases by biochemical analysis.Results: Statistically significant differences were determined in laboratory values of white blood cell (WBC) (p < 0.001), neutrophil (p < 0.001), lymphocyte (p < 0.001), NLR (p < 0.001), MPV (p < 0.05), platelet (p < 0.001), C-reactive protein (CRP) (p < 0.05) in acute phase; and in lymphocyte (p < 0.05), NLR (p < 0.05), platelet (p < 0.001), and CRP (p < 0.001) in subacute phase between patients and healthy controls. Statistically significant differences were determined in laboratory values of WBC (p < 0.001), neutrophil (p < 0.001), lymphocyte (p < 0.05), NLR (p < 0.001), CRP (p < 0.001), and PLR (p < 0.05) in patient group between acute and subacute phases. In patient group, mean lymphocyte count was determined lower in acute phase than subacute phase (p < 0.05).Conclusion: The most striking finding of the present study is determination of 1 unit increase in NLR results in 1.95 folds increase in epileptic seizure risk in binary logistic regression analysis. Additionally, it indicates that epileptic seizure is correlated with NLR, PLR, and neutrophil mediated inflammation. To the best of authors knowledge, this is the first report indicating that there is a relationship between epileptic seizure and PLR, neutrophil mediated inflammation, and that 1 unit increase in NLR increases epileptic seizure risk by 1.95 folds.
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