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  • Title: Fetal and neonatal cortical adrenal function in birth asphyxia.
    Author: Procianoy RS, Giacomini CB, Oliveira ML.
    Journal: Acta Paediatr Scand; 1988 Sep; 77(5):671-4. PubMed ID: 2974231.
    Abstract:
    Eighteen newborn infants, gestational age between 36 and 42 weeks with birth asphyxia were compared with 23 normal newborn infants to determine serum cortisol and dehydroepiandrosterone sulfate levels in cord blood and in venous blood samples collected 12-18 hours after birth. Both groups were similar in gestational age, birthweight, proportion of small for gestational age and large for gestational age infants, proportion of infants delivered by cesarean section with and without labor, and proportion of mothers with pre-eclampsia. There was no antenatal exposure to corticosteroid. The asphyxiated newborn infants had a significantly higher mean cord serum level of cortisol, and a significantly lower mean cord serum level of dehydroepiandrosterone sulfate than the control group. Mean serum cortisol and dehydroepiandrosterone sulfate levels collected 12-18 hours after birth were similar between both groups. It is suggested that elevated cord serum level of cortisol is related to birth asphyxia stress stimulating the adrenal definitive zone, and the low cord serum level of dehydroepiandrosterone sulfate is secondary to a transient hypoxemic-ischemic insult to the adrenal fetal zone.
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