PMID- 23573311 OWN - NLM STAT- MEDLINE DCOM- 20131031 LR - 20211021 IS - 1936-2625 (Electronic) IS - 1936-2625 (Linking) VI - 6 IP - 4 DP - 2013 TI - Gestational diabetes induces chronic hypoxia stress and excessive inflammatory response in murine placenta. PG - 650-9 AB - Metabolic impairments in maternal obesity and gestational diabetes mellitus (GDM) induce an abnormal environment in peripheral blood and cause vascular structure alterations which affect the placental development and function. A GDM model was developed using C57BL/6J female mice fed with high fat food (HF) (40% energy from fat) and a control group with control food (CF) (14% energy from fat) for 14 weeks before mating and throughout the gestation period. A subset of dams was sacrificed at gestational day (GD) 18.5 to evaluate the fetal and placental development. HF-fed dams exhibited significant increase in the maternal weight gain and homeostasis model assessment for insulin resistance index (HOMA-IR), impaired insulin secretion of glucose stimulus and glucose clearance of insulin stimulus before pregnancy; in addition, they also had the increase in the fetal and placental weight. HF-fed dams at GD 18.5 showed the high level of circulating maternal inflammation factors and were associated with increased oxidative stress and hypoxia in the labyrinth, abnormal vascular development with a high level of hypoxia inducible factor-1alpha (HIF-1alpha) and VEGF-A expression, but without a parallel increase in CD31 level; were induced an exaggerated inflammatory response in placental vascular endothelial cell. Our findings show that GDM induces more maternal weight gain and fetus weight, with abnormal maternal circulating metabolic and inflammation factors, and forms a placental hypoxia environment and impacts the placental vascular development. Our findings indicate that gestational diabetes induce excessive chronic hypoxia stress and inflammatory response in placentas which may contribute mechanisms to the high risks of perinatal complications of obesity and GDM mothers. FAU - Li, Hua-Ping AU - Li HP AD - Department of Gynecology & Obstetrics, 6th People's Hospital affiliated to Shanghai Jiaotong University, Shanghai 6th People's Hospital, Shanghai 200233, China. hpli819@sohu.com FAU - Chen, Xuan AU - Chen X FAU - Li, Ming-Qing AU - Li MQ LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130315 PL - United States TA - Int J Clin Exp Pathol JT - International journal of clinical and experimental pathology JID - 101480565 RN - 0 (Hif1a protein, mouse) RN - 0 (Hypoxia-Inducible Factor 1, alpha Subunit) RN - 0 (Insulin) RN - 0 (Vascular Endothelial Growth Factor A) RN - IY9XDZ35W2 (Glucose) SB - IM MH - Animals MH - Comorbidity MH - Diabetes, Gestational/epidemiology/metabolism/*physiopathology MH - Diet, High-Fat/adverse effects MH - Disease Models, Animal MH - Female MH - Fetal Development MH - Glucose/metabolism MH - Hypoxia/etiology/metabolism/*physiopathology MH - Hypoxia-Inducible Factor 1, alpha Subunit/metabolism MH - Inflammation/etiology/metabolism/*physiopathology MH - Insulin/metabolism MH - Mice MH - Mice, Inbred C57BL MH - Obesity/epidemiology/metabolism/physiopathology MH - Placenta/metabolism/pathology/*physiopathology MH - Pregnancy MH - Pregnancy Complications/epidemiology/metabolism/*physiopathology MH - Pregnancy, Animal/metabolism/*physiology MH - Stress, Physiological/*physiology MH - Vascular Endothelial Growth Factor A/metabolism PMC - PMC3606854 OTO - NOTNLM OT - GDM OT - High fat diet OT - hypoxia OT - inflammation factor OT - obesity OT - oxidative stress OT - placenta EDAT- 2013/04/11 06:00 MHDA- 2013/11/01 06:00 PMCR- 2013/03/15 CRDT- 2013/04/11 06:00 PHST- 2013/01/13 00:00 [received] PHST- 2013/02/22 00:00 [accepted] PHST- 2013/04/11 06:00 [entrez] PHST- 2013/04/11 06:00 [pubmed] PHST- 2013/11/01 06:00 [medline] PHST- 2013/03/15 00:00 [pmc-release] PST - ppublish SO - Int J Clin Exp Pathol. 2013;6(4):650-9. Epub 2013 Mar 15.