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dc.contributor.authorErkkilä, AT
dc.contributor.authorLee, JC
dc.contributor.authorLankinen, M
dc.contributor.authorManninen, S
dc.contributor.authorLeung ,HH
dc.contributor.authorOger, C
dc.contributor.authorde Mello, VD
dc.contributor.authorSchwab, US
dc.date.accessioned2019-08-13T09:10:49Z
dc.date.available2019-08-13T09:10:49Z
dc.date.issued2019
dc.identifier.urihttps://erepo.uef.fi/handle/123456789/7687
dc.description.abstractDietary fatty acids are suggested to affect oxidative stress; however, results from interventions have been inconclusive. The aim was to examine if fatty fish, lean fish, and Camelina sativa oil (CSO) affect the urinary prostanoid levels in subjects with impaired glucose metabolism. Altogether 79 participants aged 43–72 years completed a randomized controlled study lasting 12 weeks. There were four parallel groups, fatty fish, lean fish (four fish meals/week in both), CSO providing 10 g/day alpha‐linolenic acid (ALA), and control diet with limited fish and ALA containing oil consumption. Urinary prostanoids (prostaglandin F2α, 5‐F2t‐isoprostanes and 15‐F2t‐isoprostane metabolites, isofuran, 8‐F3t‐isoprostanes, and 4‐(RS)‐4‐F4t‐neuroprostane) of 72 participants (age: mean (±SD) 58.9 ± 6.5 years; body mass index: 29.3 ± 2.5 kg/m2) collected over 12‐h were measured using liquid chromatography tandem‐mass spectrometry. Plasma phospholipid fatty acids were determined using gas chromatography. Our study showed that the proportion of ALA in plasma phospholipids increased in the CSO group (overall difference among the groups p‐value <0.001). In the fatty fish group, proportions of eicosapentaenoic and docosahexaenoic acids increased (overall p‐value <0.001 for both). Prostaglandin F2α was higher in the CSO group than in the control group (p < 0.05), however, there were no other significant changes in urinary excretion of other prostanoids among the study groups. At baseline, arachidonic acid in plasma phospholipids was positively (r = 0.247, p < 0.05) and ALA negatively (r = −0.326, p < 0.05) associated with urinary total isoprostanes. In conclusion, CSO, fatty fish, and lean fish consumption do not cause major changes in oxidative stress markers in subjects with impaired glucose tolerance.
dc.language.isoenglanti
dc.publisherWiley
dc.relation.ispartofseriesLipids
dc.relation.urihttp://dx.doi.org/10.1002/lipd.12176
dc.rightsAll rights reserved
dc.subjectalpha‐linolenic acid
dc.subjectCamelina sativa oil
dc.subjectfish
dc.subjectimpaired glucose tolerance
dc.subjectisoprostanes
dc.subjectoxidative stress
dc.titleCamelina sativa oil, fatty fish or lean fish do not markedly affect urinary prostanoids in subjects with impaired glucose metabolism
dc.description.versionfinal draft
dc.contributor.departmentSchool of Medicine / Public Health
dc.contributor.departmentSchool of Medicine / Clinical Nutrition
uef.solecris.id63034788en
dc.type.publicationTieteelliset aikakauslehtiartikkelit
dc.rights.accessrights© AOCS
dc.relation.doi10.1002/lipd.12176
dc.description.reviewstatuspeerReviewed
dc.format.pagerange453-464
dc.publisher.countrySaksa
dc.relation.issn0024-4201
dc.relation.issue8
dc.relation.volume54
dc.rights.accesslevelopenAccess
dc.type.okmA1
uef.solecris.openaccessEi


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