High-fat diet in pregnant rats and adverse fetal outcome.
Ups J Med Sci
; 124(2): 125-134, 2019 Apr.
Article
in En
| MEDLINE
| ID: mdl-31063006
ABSTRACT
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 andmethods:
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, ß-hydroxybutyrate, branched-chain amino acids, and leptin were increased, whereas those of triacylglycerol, cholesterol, and palmitic, oleic, linoleic, and α-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.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Prenatal Exposure Delayed Effects
/
Pregnancy, Animal
/
Diet, High-Fat
Type of study:
Prognostic_studies
Limits:
Animals
/
Female
/
Humans
/
Pregnancy
Language:
En
Journal:
Ups J Med Sci
Year:
2019
Document type:
Article
Affiliation country:
Sweden