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Plasma fatty acids: Biomarkers of dietary intake?

Marchioni, Dirce Maria ; de Oliveira, Mayara Freitas ; Carioca, Antonio Augusto Ferreira ; Miranda, Andreia A. Machado ; Carvalho, Aline Martins ; Oki, Erica ; Norde, Marina Maintinguer ; Rogero, Marcelo Macedo ; Damasceno, Nagila Raquel Teixeira ; Fisberg, Regina Mara

Nutrition (Burbank, Los Angeles County, Calif.), 2019-03, Vol.59, p.77-82 [Periódico revisado por pares]

United States: Elsevier Inc

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Título:
Plasma fatty acids: Biomarkers of dietary intake?
Autor: Marchioni, Dirce Maria ; de Oliveira, Mayara Freitas ; Carioca, Antonio Augusto Ferreira ; Miranda, Andreia A. Machado ; Carvalho, Aline Martins ; Oki, Erica ; Norde, Marina Maintinguer ; Rogero, Marcelo Macedo ; Damasceno, Nagila Raquel Teixeira ; Fisberg, Regina Mara
Assuntos: Adolescent ; Adult ; Adults ; Anthropometry ; Bioindicators ; Biomarkers ; Biomarkers - blood ; Brazil ; Cardiovascular diseases ; Child ; Chromatography, Gas ; Correlation analysis ; Cross-Sectional Studies ; Data collection ; Demographics ; Diet ; Diet - statistics & numerical data ; Diet Surveys ; Dietary Fats - analysis ; Dietary intake ; Docosahexaenoic acid ; Docosahexaenoic Acids - blood ; Eating ; Fatty acids ; Fatty Acids - blood ; Female ; Food ; Food intake ; Gas chromatography ; Health Surveys ; Households ; Humans ; Linear Models ; Male ; Middle Aged ; Nutrition ; Plasma ; Questionnaires ; Regression analysis ; Sociodemographics ; Software ; Statistical analysis ; Statistics, Nonparametric ; Young Adult
É parte de: Nutrition (Burbank, Los Angeles County, Calif.), 2019-03, Vol.59, p.77-82
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Descrição: •To our knowledge, there is currently no consensus in the literature on the association between dietary fatty acids and circulating levels in plasma.•Low correlation and agreement were found between dietary and plasma fatty acids.•The results of this study do not support the use of plasma fatty acids as biomarkers of dietary fatty acids. To our knowledge, there is currently no consensus in the literature on the association between dietary fatty acids and circulating levels in plasma. The aim of this study was to assess the association of the intake of fatty acids with their relative plasma concentrations. We conducted a study with 300 adults from the population-based health survey in São Paulo city (ISA-Capital 2008). We assessed demographic, lifestyle and anthropometric data, biochemical measurements, and two 24-h dietary recalls collected on non-consecutive days. Intake distribution was adjusted for intrapersonal variance to give usual dietary intake using the multiple source method (MSM). Percentage of fatty acids in plasma were analyzed by gas chromatography. The κ statistic, Spearman's correlation, and multiple linear regression (adjusted for confounders) and ratio limits of agreement were employed to determine the relationship between plasma and dietary measurements. Low correlation and agreement were found between dietary and plasma fatty acids. Docosahexaenoic acid (β = 0.25; P < 0.001) and saturated (β = 0.19; P = 0.048) fatty acids exhibited an association for means of intake adjusted by the MSM and for confounding variables. A large mean difference, with a large variation of “ratio limits,” were observed between the measurements. Plasma and dietary polyunsaturated and saturated fatty acids exhibited low correlation and agreement, as well as weak association between each other. No association between intake and plasma concentrations of monounsaturated fat was found. Plasma fatty acids are not good biomarkers of food intake.
Editor: United States: Elsevier Inc
Idioma: Inglês

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Plasma fatty acids: Biomarkers of dietary intake?

Marchioni, Dirce Maria ; de Oliveira, Mayara Freitas ; Carioca, Antonio Augusto Ferreira ; Miranda, Andreia A. Machado ; Carvalho, Aline Martins ; Oki, Erica ; Norde, Marina Maintinguer ; Rogero, Marcelo Macedo ; Damasceno, Nagila Raquel Teixeira ; Fisberg, Regina Mara

United States: Elsevier Inc

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