Lipid Metabolism Is Dysregulated before, during and after Pregnancy in a Mouse Model of Gestational Diabetes.

No Thumbnail Available
Change log
Fernandez-Twinn, Denise S  ORCID logo
Chiarugi, Davide 

The aim of the current study was to test the hypothesis that maternal lipid metabolism was modulated during normal pregnancy and that these modulations are altered in gestational diabetes mellitus (GDM). We tested this hypothesis using an established mouse model of diet-induced obesity with pregnancy-associated loss of glucose tolerance and a novel lipid analysis tool, Lipid Traffic Analysis, that uses the temporal distribution of lipids to identify differences in the control of lipid metabolism through a time course. Our results suggest that the start of pregnancy is associated with several changes in lipid metabolism, including fewer variables associated with de novo lipogenesis and fewer PUFA-containing lipids in the circulation. Several of the changes in lipid metabolism in healthy pregnancies were less apparent or occurred later in dams who developed GDM. Some changes in maternal lipid metabolism in the obese-GDM group were so late as to only occur as the control dams' systems began to switch back towards the non-pregnant state. These results demonstrate that lipid metabolism is modulated in healthy pregnancy and the timing of these changes is altered in GDM pregnancies. These findings raise important questions about how lipid metabolism contributes to changes in metabolism during healthy pregnancies. Furthermore, as alterations in the lipidome are present before the loss of glucose tolerance, they could contribute to the development of GDM mechanistically.

gestational diabetes, hyperglycaemia, lipid metabolism, lipid traffic analysis, lipidomics, mouse model, Animals, Blood Glucose, Diabetes, Gestational, Female, Glucose Tolerance Test, Lipid Metabolism, Lipidomics, Lipids, Mice, Obesity, Pregnancy
Journal Title
Int J Mol Sci
Conference Name
Journal ISSN
Volume Title
All rights reserved
Biotechnology and Biological Sciences Research Council (BB/M027252/2)
Biotechnology and Biological Sciences Research Council (BB/M027252/1)
Medical Research Council (MC_UU_12012/4)
British Heart Foundation (RG/17/12/33167)
Medical Research Council (MC_UU_12012/5)
MRC (MC_UU_00014/4)
(BB/M027252/1 BB/T014210/1 for SF) (MC_UU_12012/4 and RG/17/12/33167