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  • Title: Neuron-specific enolase: reference values in cord blood.
    Author: Kintzel K, Sonntag J, Strauss E, Obladen M.
    Journal: Clin Chem Lab Med; 1998 Apr; 36(4):245-7. PubMed ID: 9638351.
    Abstract:
    With foetal sonography prenatal detection of tumours has become more frequent. To evaluate and treat these infants it is necessary to identify the tumour postnatally. Elevated neuron-specific enolase is a biochemical marker of neuroblastoma. Since conditions during birth may influence neuron-specific enolase concentration in foetal serum, specific reference values in cord blood are required. Cord blood samples were taken from 192 healthy term newborns and concentration of neuron-specific enolase was measured by enzyme immunoassay (EIA). Median neuron-specific enolase concentration in the reference group was 8.0 micrograms/l and the 5th-95th percentiles were 4.8-19.4 micrograms/l. No differences between male and female newborns were detected (p = 0.13). Measurement of neuron-specific enolase in cord blood, in comparison with our reference values, offers an early postnatal possibility of confirming the diagnosis of neuroblastoma.
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