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JOURNAL ARTICLE
RANDOMIZED CONTROLLED TRIAL
A double-blind, randomized clinical trial of the effect of omega-3 fatty acids on the oxidative stress of preterm neonates fed through parenteral nutrition.
European Journal of Clinical Nutrition 2010 September
BACKGROUND/OBJECTIVES: The aim of this study was to research and draw conclusions about the effect of a parenteral nutrition (PN) fat emulsion, rich in omega-3 fatty acids, on the antioxidant markers of preterm infants, when compared with a standard fat emulsion. This was a double-blind, parallel-group study conducted in Athens, Greece, using an equal randomization method.
SUBJECTS/METHODS: Thirty-eight infants were selected using a double-blind method and a computer-generated randomization list. Both groups received PN, based on the same protocols. Group A received SMOFlipid fat emulsion, while group B received the standard fat emulsion (Intralipid). Serum levels of vitamin A, E and total antioxidant potential (TAP) were measured on days 0, 7 and 14 of PN support. Clinical and biochemical data were collected on days 0, 14 and on the day of discharge.
RESULTS: Serum levels of vitamin E and A were significantly increased in group A, while only vitamin A serum level was increased in group B on the fourteenth day (group A: vitamin E: P-value=0.002, vitamin A: P-value=0.000, group B: vitamin E: P-value=0.065, vitamin A: P-value=0.000). TAP was increased only in the intervention group (group A: P-value=0.000, group B: P-value=0.287). Mild anemia was developed in both groups, while no differences were detected in the infection rate, days of hospitalization, days of ventilator support and days of phototherapy.
CONCLUSIONS: Oxidative stress was significantly reduced in those neonates fed with omega-3 fatty acids, whereas no effect was observed in the neonates fed with standard lipids. Intervention had no effect on infants' growth and clinical outcome.
SUBJECTS/METHODS: Thirty-eight infants were selected using a double-blind method and a computer-generated randomization list. Both groups received PN, based on the same protocols. Group A received SMOFlipid fat emulsion, while group B received the standard fat emulsion (Intralipid). Serum levels of vitamin A, E and total antioxidant potential (TAP) were measured on days 0, 7 and 14 of PN support. Clinical and biochemical data were collected on days 0, 14 and on the day of discharge.
RESULTS: Serum levels of vitamin E and A were significantly increased in group A, while only vitamin A serum level was increased in group B on the fourteenth day (group A: vitamin E: P-value=0.002, vitamin A: P-value=0.000, group B: vitamin E: P-value=0.065, vitamin A: P-value=0.000). TAP was increased only in the intervention group (group A: P-value=0.000, group B: P-value=0.287). Mild anemia was developed in both groups, while no differences were detected in the infection rate, days of hospitalization, days of ventilator support and days of phototherapy.
CONCLUSIONS: Oxidative stress was significantly reduced in those neonates fed with omega-3 fatty acids, whereas no effect was observed in the neonates fed with standard lipids. Intervention had no effect on infants' growth and clinical outcome.
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