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PLASMA LEVELS OF TRANS-FATTY ACIDS ARE LOW IN EXCLUSIVELY BREASTFED INFANTS OF ADOLESCENT MOTHERS
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Abstract
The purpose of this study was to determine the
levels of trans-octadecenoic acid (C18:1-trans) and transisomers
of linoleic acid (18:2-trans), as well as long-chain
polyunsaturated fatty acids (LC-PUFA), in the plasma from
infants of adolescent mothers at 3 months of age, exclusively
breastfed, and the relationship with the levels of the
same isomers in plasma and milk of the mothers. Samples
of blood and mature milk were obtained from 49 healthy
adolescent mothers and their exclusively breastfed infants
treated at the Instituto Fernandes Figueira-Fundac¸a˜o
Oswaldo Cruz (IFF-FIOCRUZ) in Rio de Janeiro, Brazil.
trans-Fatty acids (TFA) were analyzed by gas chromatography.
The results of this study showed low levels of
TFA in milk (1.53%), maternal plasma (0.50%), and
plasma of infants (0.74%). The results show that, although
TFA have been found in the plasma of the studied infants,
the LC-PUFA levels are kept within normal limits. No
association between TFA presence and parameters of
nutritional status of the infants was observed, probably due
to the low levels of these fatty acids found in this study.
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