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High-fat diet in pregnant rats and adverse fetal outcome
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Cell Biology.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Cell Biology.
CEU San Pablo Univ, Dept Biochem, Madrid, Spain.ORCID iD: 0000-0002-8152-787X
2019 (English)In: Upsala Journal of Medical Sciences, ISSN 0300-9734, E-ISSN 2000-1967, Vol. 124, no 2, p. 125-134Article in journal (Refereed) Published
Abstract [en]

Background: Although pregestational obesity has been associated with increased risk of adverse fetal outcome, the mechanisms behind are not known. We aimed to investigate the influence of the maternal metabolic state on fetal outcome in rats exposed to either a high-fat diet (HFD) or a control diet (CD). We also investigated the impact of serum collected from HFD/CD pregnant rats on CD embryonic development in whole-embryo cultures. Material and methods: On gestational day 0, 9, 10, or 20 maternal plasma/serum samples were collected as pregnancies were terminated for the estimations of maternal metabolic state and embryo-fetal development. We measured embryonic gene expression of ROS scavenger enzymes as well as genes involved in inflammation in maternal adipose tissue. Results: In HFD maternal plasma/serum, concentrations of glucose, beta-hydroxybutyrate, branched-chain amino acids, and leptin were increased, whereas those of triacylglycerol, cholesterol, and palmitic, oleic, linoleic, and alpha-linolenic acids were decreased. Gene expression of CuZnSOD, IL-6, IL-10, and resistin was increased in HFD maternal adipose tissue, whereas that of CuZnSOD and MnSOD was decreased in HFD-exposed embryos. HFD caused retention of most fatty acids in the maternal liver as well. Conclusion: HFD alters the maternal metabolic state, increases fetal resorptions in vivo, and increases the rate of fetal/embryonic malformations both in vivo and in vitro. These findings suggest that metabolic disturbances in HFD pregnant rats have profound adverse developmental effects in the offspring.

Place, publisher, year, edition, pages
Taylor & Francis Group, 2019. Vol. 124, no 2, p. 125-134
Keywords [en]
Animal model, fetal anomaly, fetal outcome, high-fat diet, pregnancy, rodent
National Category
Endocrinology and Diabetes
Identifiers
URN: urn:nbn:se:uu:diva-398726DOI: 10.1080/03009734.2019.1604588ISI: 000471391800001PubMedID: 31063006OAI: oai:DiVA.org:uu-398726DiVA, id: diva2:1376954
Available from: 2019-12-10 Created: 2019-12-10 Last updated: 2019-12-10Bibliographically approved

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Wentzel, ParriEriksson, Ulf J.Herrera, Emilio
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