Journal
PROSTAGLANDINS LEUKOTRIENES AND ESSENTIAL FATTY ACIDS
Volume 150, Issue -, Pages 38-46Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.plefa.2019.09.004
Keywords
Genetic polymorphism; Essential fatty acids; Nutrigenomics; Pregnant women
Funding
- Brazilian National Research Council (CNPQ) [481509/2012.7]
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There is a lack of studies about polymorphisms in FADS genes in pregnant women. We aimed to verify the interaction between three FADS gene polymorphisms (rs174561; rs174575; rs3834458) and dietary alpha-linolenic acid (ALA) or linoleic/alpha-linolenic acid ratio (LA/ALA) and plasma concentrations of omega-3 (n - 3) PUFAs in pregnant women. Of the 250 women evaluated, the homozygous for the rs174561 and rs3834458 minor allele had high plasma ALA concentrations at the highest ALA and LA/ALA ratio tertile (p < 0.05). Plasma concentrations of EPA and DHA were not influenced by diet. For the rs174575 SNP, pregnant women who carried the minor allele presented lower proportions of plasma EPA in the second LA/ALA ratio tertile (p < 0.05). Increased dietary intake of ALA and LA/ALA ratio promoted plasma ALA accumulation in homozygotes for the minor allele rs174561 and rs3834458. Moderate intake of LA/ALA ratio may reduce plasma concentration of EPA in pregnants carrying the rs174575 minor allele.
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