PMID- 31827696 OWN - NLM STAT- MEDLINE DCOM- 20200504 LR - 20200505 IS - 1942-0994 (Electronic) IS - 1942-0900 (Print) IS - 1942-0994 (Linking) VI - 2019 DP - 2019 TI - Obeticholic Acid Protects against Gestational Cholestasis-Induced Fetal Intrauterine Growth Restriction in Mice. PG - 7419249 LID - 10.1155/2019/7419249 [doi] LID - 7419249 AB - Gestational cholestasis is a common disease and is associated with adverse pregnancy outcomes. However, there are still no effective treatments. We investigated the effects of obeticholic acid (OCA) on fetal intrauterine growth restriction (IUGR) during 17alpha-ethynylestradiol- (E2-) induced gestational cholestasis in mice. All pregnant mice except controls were subcutaneously injected with E2 (0.625 mg/kg) daily from gestational day (GD) 13 to GD17. Some pregnant mice were orally administered with OCA (5 mg/kg) daily from GD12 to GD17. As expected, OCA activated placental, maternal, and fetal hepatic FXR signaling. Additionally, exposure with E2 during late pregnancy induced cholestasis, whereas OCA alleviated E2-induced cholestasis. Gestational cholestasis caused reduction of fetal weight and crown-rump length and elevated the incidence of IUGR. OCA decreased the incidence of IUGR during cholestasis. Interestingly, OCA attenuated reduction of blood sinusoid area in placental labyrinth layer and inhibited downregulation of placental sodium-coupled neutral amino acid transporter- (SNAT-) 2 during cholestasis. Additional experiment found that OCA attenuated glutathione depletion and lipid peroxidation in placenta and fetal liver and placental protein nitration during cholestasis. Moreover, OCA inhibited the upregulation of placental NADPH oxidase-4 and antioxidant genes during cholestasis. OCA activated antioxidant Nrf2 signaling during cholestasis. Overall, we demonstrated that OCA treatment protected against gestational cholestasis-induced placental dysfunction and IUGR through suppressing placental oxidative stress and maintaining bile acid homeostasis. CI - Copyright (c) 2019 Wei Chen et al. FAU - Chen, Wei AU - Chen W AD - Department of Histology and Embryology, Anhui Medical University, Hefei, China. AD - Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei, China. FAU - Gao, Xing-Xing AU - Gao XX AD - Department of Histology and Embryology, Anhui Medical University, Hefei, China. AD - Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei, China. FAU - Ma, Li AU - Ma L AD - Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei, China. FAU - Liu, Zhi-Bing AU - Liu ZB AD - Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei, China. FAU - Li, Li AU - Li L AD - The First Affiliated Hospital, Anhui Medical University, Hefei, China. FAU - Wang, Hua AU - Wang H AD - Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei, China. FAU - Gao, Lan AU - Gao L AD - Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei, China. FAU - Xu, De-Xiang AU - Xu DX AUID- ORCID: 0000-0002-5126-4335 AD - Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei, China. FAU - Chen, Yuan-Hua AU - Chen YH AUID- ORCID: 0000-0001-7344-4436 AD - Department of Histology and Embryology, Anhui Medical University, Hefei, China. AD - Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei, China. LA - eng PT - Journal Article DEP - 20191115 PL - United States TA - Oxid Med Cell Longev JT - Oxidative medicine and cellular longevity JID - 101479826 RN - 0 (Estrogens) RN - 0462Z4S4OZ (obeticholic acid) RN - 0GEI24LG0J (Chenodeoxycholic Acid) RN - 423D2T571U (Ethinyl Estradiol) RN - Intrahepatic Cholestasis of Pregnancy SB - IM MH - Animals MH - Chenodeoxycholic Acid/*analogs & derivatives/pharmacology MH - Cholestasis, Intrahepatic/chemically induced/*complications MH - Estrogens/toxicity MH - Ethinyl Estradiol/toxicity MH - Female MH - Fetal Growth Retardation/etiology/metabolism/pathology/*prevention & control MH - Fetus/*drug effects/metabolism MH - Lipid Peroxidation/drug effects MH - Male MH - Mice MH - Mice, Inbred ICR MH - Oxidative Stress/drug effects MH - Pregnancy MH - Pregnancy Complications/chemically induced MH - Signal Transduction/drug effects PMC - PMC6885290 COIS- The authors have declared that no competing interests exist. EDAT- 2019/12/13 06:00 MHDA- 2020/05/06 06:00 PMCR- 2019/11/15 CRDT- 2019/12/13 06:00 PHST- 2019/02/21 00:00 [received] PHST- 2019/04/25 00:00 [revised] PHST- 2019/09/23 00:00 [accepted] PHST- 2019/12/13 06:00 [entrez] PHST- 2019/12/13 06:00 [pubmed] PHST- 2020/05/06 06:00 [medline] PHST- 2019/11/15 00:00 [pmc-release] AID - 10.1155/2019/7419249 [doi] PST - epublish SO - Oxid Med Cell Longev. 2019 Nov 15;2019:7419249. doi: 10.1155/2019/7419249. eCollection 2019.