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The Use of Gas Chromatography to Analyze Compositional Changes of Fatty Acids in Rat Liver Tissue during Pregnancy
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Published on: March 13, 2014

Fatty acid composition of plasma and erythrocyte phospholipids in preterm infants

S E Shires, S P Conway, I Rawson

    Early Human Development
    |February 1, 1986
    PubMed

    Insights

    Preterm infants show significant changes in essential fatty acids within 6 weeks of birth. Their fatty acid profiles, particularly linoleic and arachidonic acids, normalize with modern feeding, indicating satisfactory nutritional status.

    Area of Science:

    • Neonatal nutrition
    • Biochemistry
    • Pediatric research

    Background:

    • Preterm infants have unique nutritional requirements.
    • Phospholipid fatty acid composition reflects dietary intake and metabolic status.
    • Understanding fatty acid changes is crucial for optimal infant growth and development.

    Purpose of the Study:

    • To analyze erythrocyte and plasma phospholipid fatty acid changes in preterm infants.
    • To assess the impact of feeding regimes on essential fatty acid status.
    • To compare fatty acid profiles with those of healthy breast-fed infants.

    Main Methods:

    • Fatty acid analysis of plasma and erythrocyte phospholipids at 0, 6, and 10 weeks.
    • Quantification of specific fatty acids like linoleic and arachidonic acid.
    • Comparison of findings with established data for healthy infants.

    Main Results:

    • Significant alterations in fatty acid composition observed between birth and 6 weeks, especially in phosphatidyl choline.
    • Linoleic acid increased substantially (100-200%) in plasma and erythrocyte phospholipids by 6 weeks.
    • Arachidonic acid decreased by 54%, while overall essential fatty acid status was deemed satisfactory.

    Conclusions:

    • Contemporary feeding practices support adequate essential fatty acid status in preterm infants.
    • Phospholipid fatty acid profiles in preterm infants reach comparability with breast-fed infants by 6 weeks.
    • Early postnatal nutrition significantly influences the fatty acid composition of preterm infants.

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