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Long-chain polyunsaturated fatty acids

M Hamosh1, N Salem

  • 1Department of Pediatrics, Georgetown University Medical Center, Washington, DC 20007, USA. hamoshp@medlib.georgetown.edu

Biology of the Neonate
|August 6, 1998
PubMed

Insights

Premature infants lack essential long-chain polyunsaturated fatty acids (LC-PUFA). Supplementation during pregnancy and in infant formula can improve LC-PUFA levels, but functional benefits are temporary.

Area of Science:

  • Nutritional science
  • Developmental biology
  • Pediatrics

Background:

  • Long-chain polyunsaturated fatty acids (LC-PUFA) are critical for infant development.
  • Preterm infants have insufficient LC-PUFA reserves due to limited fetal accretion.
  • The capacity for endogenous LC-PUFA synthesis in newborns requires further investigation.

Purpose of the Study:

  • To evaluate the impact of maternal and infant supplementation with LC-PUFA on infant LC-PUFA status.
  • To compare LC-PUFA levels in breast-fed versus formula-fed infants with and without supplementation.
  • To assess the functional outcomes associated with altered LC-PUFA levels in infants.

Main Methods:

  • Review of recent studies on LC-PUFA synthesis and provision.
  • Analysis of data on maternal dietary intake and LC-PUFA supplementation during pregnancy and lactation.
  • Comparison of plasma and red blood cell LC-PUFA levels in supplemented versus unsupplemented formula-fed infants and breast-fed infants.

Main Results:

  • Maternal LC-PUFA status, influenced by diet and supplementation, affects fetal accretion and milk LC-PUFA content.
  • Supplementation of formula with docosahexaenoic acid and arachidonic acid normalizes infant LC-PUFA levels to those of breast-fed infants.
  • Elevated LC-PUFA levels achieved through supplementation result in transient functional improvements.

Conclusions:

  • Maternal LC-PUFA supplementation is crucial for optimizing fetal and neonatal stores.
  • Formula supplementation can effectively raise LC-PUFA levels in preterm and full-term infants.
  • While LC-PUFA supplementation improves biochemical markers, sustained functional benefits require further research.

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