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Herrera, E; Desoye, G.
Maternal and fetal lipid metabolism under normal and gestational diabetic conditions.
Horm Mol Biol Clin Investig. 2016; 26(2):109-127 Doi: 10.1515/hmbci-2015-0025 [OPEN ACCESS]
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Co-Autor*innen der Med Uni Graz: Desoye Gernot
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Abstract:: Maternal lipids are strong determinants of fetal fat mass. Here we review the overall lipid metabolism in normal and gestational diabetes mellitus (GDM) pregnancies. During early pregnancy, the increase in maternal fat depots is facilitated by insulin, followed by increased adipose tissue breakdown and subsequent hypertriglyceridemia, mainly as a result of insulin resistance (IR) and estrogen effects. The response to diabetes is variable as a result of greater IR but decreased estrogen levels. The vast majority of fatty acids (FAs) in the maternal circulation are esterified and associated with lipoproteins. These are taken up by the placenta and hydrolyzed by lipases. The released FAs enter various metabolic routes and are released into fetal circulation. Although these determinants are modified in maternal GDM, the fetus does not seem to receive more FAs than in non-GDM pregnancies. Long-chain polyunsaturated FAs are essential for fetal development and are obtained from the mother. Mitochondrial FA oxidation occurs in fetal tissue and in placenta and contributes to energy production. Fetal fat accretion during the last weeks of gestation occurs very rapidly and is sustained not only by FAs crossing the placenta, but also by fetal lipogenesis. Fetal hyperinsulinemia in GDM mothers promotes excess accretion of adipose tissue, which gives rise to altered adipocytokine profiles. Fetal lipoproteins are low at birth, but the GDM effects are unclear. The increase in body fat in neonates of GDM women is a risk factor for obesity in early childhood and later life.
Find related publications in this database (using NLM MeSH Indexing): Adipose Tissue - metabolism; Diabetes, Gestational - metabolism; Dyslipidemias - complications; Fatty Acids, Nonesterified - blood; Female -; Fetal Development -; Fetus - metabolism; Humans -; Lipid Metabolism -; Maternal-Fetal Exchange -; Placenta - metabolism; Pregnancy -; Triglycerides - blood
Find related publications in this database (Keywords): fatty acids; fetal lipids; gestational diabetes; human pregnancy; maternal lipids