Document Detail

NK and CD4+ T cell changes in blood after seizures in temporal lobe epilepsy.
MedLine Citation:
PMID:  18387608     Owner:  NLM     Status:  MEDLINE    
Immunological phenomena may affect the course of focal epilepsy. We analyzed prospectively the pre- and postictal distribution of leukocyte subsets in epileptic patients. METHODS: Twenty-two patients (age 36.6+/-10.8 years, 50% men) with temporal lobe epilepsy were included. Distribution of leukocyte subsets and serum levels of epinephrine were measured in peripheral blood immediately and 24 h after seizures and compared to baseline values. RESULTS: In the immediate postictal state (10+/-6 min), we observed a significant relative increase of total leukocytes (42%, p=0.0004), neutrophil leukocytes (55%, p=0.0007), total lymphocytes (45%, p=0.0019), natural killer (NK) cells (104%, p=0.0017), and epinephrine (454%, p=0.0014). CD4(+) T cells decreased by 13% (p=0.0113). These postictal changes remained significant considering only complex partial seizures (n=17). The alterations were more pronounced in patients with hippocampal sclerosis. Treatment with valproic acid (VPA) was accompanied by a greater postictal decrease of CD4(+) T cells (25% compared to 5% in patients without VPA, p=0.041) while treatment with levetiracetam (LEV) correlated with a low postictal increase of NK-like T cells (4% versus 41%, p=0.016). Twenty-four hours after the seizures the alterations had resolved. CONCLUSION: Profound postictal changes in the immune cell composition of the peripheral blood may have been mediated by epinephrine release. The greater immune response in patients with mesial temporal lobe epilepsy due to hippocampal sclerosis may reflect a close relationship between mesial temporal structures and the sympathetic nerve system. VPA and LEV may have an impact on seizure induced immunological changes.
Sebastian Bauer; Martina Köller; Sabine Cepok; Anelia Todorova-Rudolph; Mareike Nowak; Wolfgang A Nockher; Rüdiger Lorenz; Björn Tackenberg; Wolfgang H Oertel; Felix Rosenow; Bernhard Hemmer; Hajo M Hamer
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Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2008-02-09
Journal Detail:
Title:  Experimental neurology     Volume:  211     ISSN:  1090-2430     ISO Abbreviation:  Exp. Neurol.     Publication Date:  2008 Jun 
Date Detail:
Created Date:  2008-05-19     Completed Date:  2008-07-07     Revised Date:  2008-09-02    
Medline Journal Info:
Nlm Unique ID:  0370712     Medline TA:  Exp Neurol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  370-7     Citation Subset:  IM    
Department of Neurology, University of Marburg, Rudolf-Bultmann-Str. 8, 35033 Marburg, Germany.
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MeSH Terms
CD4-Positive T-Lymphocytes / cytology,  immunology,  metabolism*
Epilepsy, Temporal Lobe / blood*,  immunology,  pathology
Killer Cells, Natural / cytology,  immunology,  metabolism*
Middle Aged
Comment In:
Exp Neurol. 2008 Aug;212(2):239-41   [PMID:  18514194 ]

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