Fatty acid profile of human milk of Portuguese lactating women: Prospective study from the 1st to the 16th week of lactation

• Tipo: Artigo em Revista Científica Internacional
• Data: 2008

Autores

Ribeiro, M (Autor) Outra; Balcao, V (Autor) Outra; Guimaraes, H (Autor) FMUP; Rocha, G (Autor) Outra; Moutinho, C (Autor) Outra; Matos, C (Autor) Outra; Almeida, C (Autor) Outra; Casal, S (Autor) FFUP; Guerra, A (Autor) FMUP

Revista

Título: Annals of Nutrition and Metabolism

Vol. 53

Páginas: 50-56

ISSN: 0250-6807

Editora: Karger

Indexação

ISI Web of Knowledge - 30 Citações

Scopus - 32 Citações

Classificação Científica

FOS: Ciências médicas e da saúde > Medicina clínica

Outras Informações

ID Authenticus: P-004-2HB

DOI: 10.1159/000156597

Abstract (EN): Background/Aims: Fatty acid ( FA) composition varies over the course of the day and during lactation. The aim of this study was to evaluate FA composition and its compositional stability in human milk, from day 7 to week 16 of lactation. Methods: Human milk was collected from all feedings over 24 h at day 7 and weeks 4, 8, 12 and 16 of lactation in 31 lactating women. FAs were analyzed through gas chromatography. Comparisons were made with analysis of variance. Results: Total monounsaturated FAs decreased from 33.04 +/- 8 2.58% wt/wt at day 7 to 31.48 +/- 8 3.32% wt/wt at week 16 of lactation, much at the expenses of the decrease in the major monounsaturated FA found in human milk, oleic acid. Main polyunsaturated FAs n-6 and n-3 showed fluctuations from day 7 up to week 16 of lactation, but with no statistical significance. Arachidonic acid significantly decreased from transitional to mature milk. Conclusions: The FA profile obtained throughout the study time points presented very low levels of oleic acid and very high linoleic acid/alpha-linoleic acid ratios which reflect recent changes in Portuguese women's food patterns. Despite this, the ascorbate/dehydroascorbate ratio remained constant during the study, suggesting a protective metabolic mechanism. Copyright (c) 2008 S. Karger AG, Basel.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7