PMID: 9550574Apr 29, 1998Paper

Neopterin concentrations in cerebrospinal fluid and serum as an aid in differentiating central nervous system and peripheral infections in children

Clinical Chemistry
M M MillnerG Reibnegger

Abstract

Neopterin is a sensitive indicator for cellular immune activation. Its concentrations were determined in cerebrospinal fluid (CSF) and serum specimens from 91 children with no evidence of central nervous system (CNS) or peripheral inflammations, 43 with definite neuroborreliosis, 51 with other CNS infections, and 33 with peripheral infections. The aim of our study was (a) to establish a range of normal CSF neopterin concentrations in control children, and (b) to inquire into the diagnostic potential of neopterin measurements in both body compartments for aiding in differential diagnosis of inflammatory vs noninflammatory diseases, and CNS vs peripheral inflammations. CSF neopterin concentrations in controls were invariably low (up to 9.3 nmol/L), but in children with neuroborreliosis and, even more so, with other CNS infections neopterin concentrations were significantly (P <0.0001) increased. Children with peripheral infections, however, rarely showed raised CSF neopterin concentrations. Serum concentrations of neopterin, on the other hand, were not significantly different between controls and children with neuroborreliosis. Although serum concentrations were significantly different between controls and children with other CNS...Continue Reading

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