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  • Title: Cerebrospinal fluid concentration of biogenic amine metabolites in idiopathic apnea of prematurity.
    Author: Bhat AM, Scanlon JW, Lavenstein B, Chuang L, Karoum F.
    Journal: Biol Neonate; 1983; 43(1-2):16-22. PubMed ID: 6850011.
    Abstract:
    The concentration of homovanillic acid and 3-methoxy-4-hydroxyphenylglycol (MHPG), the major metabolites of dopamine and norepinephrine, respectively, were studied in the cerebrospinal fluid (CSF) of 34 newborn infants. No significant difference was found in the levels of MHPG and homovanillic acid between preterm and term infants. Apneic preterm infants had significantly higher levels of MHPG than nonapneic prematures. Theophylline did not change the levels of these metabolites in CSF. There was a progressive rise of MHPG levels in CSF in preterm infants as their postnatal age increased. We suggest that idiopathic apnea of prematurity is not associated with depletion of catecholamine stores in the central nervous system. Theophylline does not seem to relieve apnea by stimulation of the central adrenergic system.
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