Abstract:
PURPOSE:Increased concentrations of the nervous-system-specific proteins neuron-specific enolase (NSE) and S-100 protein (S-100) have been measured with lesions in the CNS. Elevated levels of serum NSE (s-NSE) have been found in status epilepticus, but also after single epileptic seizures. Because larger studies addressing cerebrospinal fluid (CSF) levels of NSE or S-100 have not been performed, we measured CSF NSE and S-100 after tonic-clonic seizures to search for evidence of neuronal and glial damage. METHODS:22 consecutive patients with single, previously undiagnosed and untreated tonic-clonic seizures were studied. Serum and CSF samples were collected within 24 h after seizure. 18 serum and CSF samples were measured from a control group. RESULTS:The mean CSF NSE was 8.9 ng/ml (range 0-28 ng/ml) and s-NSE 8.2 ng/ml (range 5-15 ng/ml) in the patient group. The mean concentrations in the control group were 13.1 ng/ml (range 3-24 ng/ml) and 8.0 ng/ml (range 5-12 ng/ml) respectively. The mean CSF S-100 was 3.17 microg/l (range 1.45-7.02 microg/l) and serum S-100 0.05 microg/l (range 0-0.32 microg/l), and in controls 3.19 microg/l (range 1.52-5.13 microg/l) and 0.08 microg/l (range 0-0.28 microg/l). CONCLUSION:There were no significant differences between the mean concentrations of NSE or S-100 in CSF and serum between the epileptic group and controls. These results do not confirm the previous observation of elevated NSE-levels after tonic-clonic seizures, which argues against neuronal or glial damage after uncomplicated tonic-clonic seizures in unmedicated patients.
journal_name
J Neurol Scijournal_title
Journal of the neurological sciencesauthors
Palmio J,Peltola J,Vuorinen P,Laine S,Suhonen J,Keränen Tdoi
10.1016/s0022-510x(00)00478-0subject
Has Abstractpub_date
2001-01-15 00:00:00pages
27-31issue
1eissn
0022-510Xissn
1878-5883pii
S0022510X00004780journal_volume
183pub_type
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