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Clinical Chemistry 34: 1439-1442, 1988;
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Clinical Chemistry, Vol 34, 1439-1442, Copyright © 1988 by American Association for Clinical Chemistry

Reference values for nucleosides and nucleobases in cerebrospinal fluid of children

GP Gerrits, AA Haagen, RA De Abreu, LA Monnens, FJ Gabreels, FJ Trijbels, AL Theeuwes and JM van Baal
Department of Pediatrics, University of Nijmegen, The Netherlands.

Disturbances in the metabolism of purines and pyrimidines in neurologically affected patients can be reflected by aberrant concentrations of nucleosides and nucleobases in cerebrospinal fluid (CSF). However, normal values, especially for children at different ages, are lacking. We collected 1000 specimens of CSF from subjects ranging in age from newborn to 18 years, who were undergoing a diagnostic lumbar puncture for several clinical indications. Of these, 78 samples could be used retrospectively as a reference according to our criteria. The analyses were performed with a modified HPLC procedure. None of the substances shows age-dependency except uridine and uric acid. Uridine increases with age, and uric acid increases with age in boys older than 12 years.




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