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  • Title: Concentration of purine compounds in the cerebrospinal fluid of infants suffering from sepsis, convulsions and hydrocephalus.
    Author: Schmidt H, Siems WG, Grune T, Grauel EL.
    Journal: J Perinat Med; 1995; 23(3):167-74. PubMed ID: 8568608.
    Abstract:
    Catabolites of purine nucleotides were measured in the cerebrospinal fluid (CSF) of newborn infants with sepsis, seizures and hydrocephalus using isocratic reversed-phase HPLC. The inosine levels in the CSF of the infants with any of the illnesses were significantly higher when compared with the controls. There was a tendency for hypoxanthine levels to be higher in the group of children with hydrocephalus. No significant differences in the concentrations of xanthine, adenine and uric acid were found. The inosine concentration in the CSF is proposed to be a more sensitive indicator of brain injury than the levels of other CSF purines. The levels of all purine metabolites measured in the CSF showed large individual variations. The ratio between hypoxanthine (as an indicator of ATP breakdown) and uric acid (as a scavenger of oxygen free radicals) concentration is proposed as a new criterion to be used in the evaluation of brain injury.
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