Autophagy is an inducible catabolic process activated during compromised conditions, such as hypoxia. Neonatal encephalopathy (NE) is a syndrome of disturbed neurological function. No absolute prognostic indicators are available at birth to identify neonates at high risk to develop NE. Immunohistochemical staining with LC3 antibody was performed on 40 placentas from uneventful term singleton pregnancies with umbilical artery pH ≤ 7.00 at birth; semi-quantitative analysis was carried-out to estimate autophagy level. 6/40 (15%) neonates developed NE. Placentas from newborns with NE exhibited a higher LC3 expression. Autophagy protein expression in placentas with severe acidosis is a potential marker for poor outcome.
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