Habitual high intake of fatty fish is related to lower levels of F2-isoprostanes in healthy females
Artikel i vetenskaplig tidskrift, 2015

Objective The aim of this study was to determine whether habitual dietary intake of fatty fish, whole grains, fruits and vegetables, or a combination of them all, is associated with oxidative stress levels, measured as urine concentration of 8-iso-prostaglandin F2α (8-iso-PGF2α) in healthy women. Methods Eighty-one participants were included in this cross-sectional study. Mean age of the women was 26.1 ± 6.2 (mean ± SD) years and mean body mass index (BMI) was 22.4 ± 3.0 kg/m2. The concentration of 8-iso-PGF2α was determined in urine, and eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) levels were determined in blood. Participants' habitual fish, whole grain, fruit, and vegetable intake was estimated from a food frequency questionnaire. Results In the multivariate analysis, there was a significant inverse association between 8-iso-PGF2α and high fatty fish intake (P < 0.001). Fatty fish intake was positively correlated to serum phospholipid concentrations of EPA (P = 0.001) and DHA (P = 0.002). A borderline effect of DHA was seen on 8-iso-PGF2α, but higher serum phospholipid concentrations of fatty acids were generally not related to lower F2-isoprostane levels. No overall effect from whole grains or fruits and vegetables was seen. Conclusions The results indicate that high intake of fatty fish is related to lower levels of oxidative stress, but high levels of ω-3 fatty acids in intake may not alone explain the effect. High habitual intake of whole grains or fruits and vegetables did not seem to affect the F2-isoprostane level.

oxidative stress

F2-isoprostaner

fish intake

vegetables

fruits

Författare

Patrik Hansson

Göteborgs universitet

Lars Barregård

Göteborgs universitet

Melina Halltorp

Göteborgs universitet

Sibthorpe Sara

Göteborgs universitet

Cecilia Svelander

Chalmers, Biologi och bioteknik, Livsmedelsvetenskap

Ann-Sofie Sandberg

Chalmers, Biologi och bioteknik, Livsmedelsvetenskap

Samar Basu

Akademiska Sjukhuset

Michael Hoppe

Göteborgs universitet

Lena Hulthén

Göteborgs universitet

Nutrition

0899-9007 (ISSN)

Vol. 31 847-852

Styrkeområden

Livsvetenskaper och teknik

Ämneskategorier

Näringslära

DOI

10.1016/j.nut.2014.12.015

PubMed

25933492