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  • Title: Elevation of neuron-specific enolase in serum and cerebrospinal fluid of early stage Creutzfeldt-Jakob disease.
    Author: Kohira I, Tsuji T, Ishizu H, Takao Y, Wake A, Abe K, Kuroda S.
    Journal: Acta Neurol Scand; 2000 Dec; 102(6):385-7. PubMed ID: 11125754.
    Abstract:
    OBJECTIVE: To investigate the levels of neuron-specific enolase (NSE) in serum and cerebrospinal fluid (CSF) of patients with early stage Creutzfeldt-Jakob disease (CJD). METHODS: The levels of NSE in serum and CSF were examined in 6 cases with CJD patients. The levels of NSE in CSF were measured in 8 age matched control patients with other neurological diseases and the levels of serum NSE were also measured in another 8 age matched control patients with other neurological diseases. The groups of 8 age matched control patients consisted of 1 same patient and 7 different patients in the 2 control groups both for serum and CSF. RESULTS: The level of serum NSE in CJD (17.3 +/- 7.0 ng/ml, mean +/- SD) was significantly higher than that of controls (6.5 +/- 1.6) (P < 0.02) as was the case in CSF (79.3 +/- 53.3 ng/ml) vs (9.6 +/- 2.9) (P < 0.03). CONCLUSION: Although mean NSE levels of CJD were higher in CSF than in the serum, there still is a case with higher serum NSE level than CSF. These results suggest that the mechanism of elevation of serum NSE may not be a simple leakage from CSF, and that the measurement of serum NSE level may be useful for diagnosis of early stage CJD.
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