Study of neurotransmitters in premature infants with or without apnea of prematurity.

Abstract:

:Twelve-hour urinary excretion of 4-hydroxy-3-methoxymandelic acid (VMA), homovanillic acid (HVA), and 3-methoxy-4-hydroxyphenylglycol (MHPG) was studied in 20 premature infants, 8 without apnea and 12 with apnea. All infants were studied at 1-3 days of postnatal age (before apnea). Nonapneic infants were restudied at 10-15 days of postnatal age. Apneic infants were also restudied 24 h after apnea. Apnea was not associated with decreased urinary excretion of VMA and MHPG. Only HVA, when expressed as microgram/kg body weight, was significantly lower after the onset of apnea. This difference disappeared when HVA was expressed as microgram/mg creatinine. We suggest that apnea of prematurity may not be related to the immaturity of catecholamine pathways.

journal_name

Clin Neuropharmacol

authors

Bhat AM,Scanlon JW,Lavenstein B,Chuang L,Karoum F

doi

10.1097/00002826-198212000-00006

subject

Has Abstract

pub_date

1982-12-01 00:00:00

pages

389-94

issue

4

eissn

0362-5664

issn

1537-162X

journal_volume

5

pub_type

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