PMID- 29370380 OWN - NLM STAT- MEDLINE DCOM- 20181105 LR - 20181105 IS - 1945-7170 (Electronic) IS - 0013-7227 (Linking) VI - 159 IP - 3 DP - 2018 Mar 1 TI - Prenatal Dexamethasone Exposure Induced Ovarian Developmental Toxicity and Transgenerational Effect in Rat Offspring. PG - 1401-1415 LID - 10.1210/en.2018-00044 [doi] AB - Prenatal dexamethasone exposure (PDE) induces multiorgan developmental toxicities in offspring. Here we verified the transgenerational inheritance effect of ovarian developmental toxicity by PDE and explored its intrauterine programming mechanism. Pregnant rats subcutaneously received 0.2 mg/kg/d dexamethasone from gestational day (GD) 9 to GD20. A subgroup was euthanized for fetuses on GD20, and the other group went on to spontaneous labor to produce F1 offspring. The adult F1 females were mated with normal males to produce the F2 and F3 generations. The PDE fetal rats exhibited ovarian mitochondrial structural abnormalities, decreased serum estradiol (E2) levels, and lower expression levels of ovarian steroidogenic factor 1 (SF1), steroidal synthetases, and insulinlike growth factor 1 (IGF1). On postnatal week (PW) 6 and PW12, the PDE F1 offspring showed altered reproductive behavior and ovarian morphology. The serum E2 level and ovarian expression of SF1, steroidal synthetases, and IGF1 were also decreased. The adult F3 offspring showed alterations in reproductive phenotype and ovarian IGF1, SF1, and steroidal synthetase expression similar to those of F1. PDE induces ovarian developmental toxicity and transgenerational inheritance effects. The mechanism by which this toxicity occurs may be related to PDE-induced low-functional programming of fetal ovarian IGF1/SF1 and steroidal synthetases. FAU - Lv, Feng AU - Lv F AD - Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China. FAU - Wan, Yang AU - Wan Y AD - Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China. FAU - Chen, Yunxi AU - Chen Y AD - Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China. FAU - Pei, Linguo AU - Pei L AD - Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China. FAU - Luo, Daji AU - Luo D AD - Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, China. FAU - Fan, Guanlan AU - Fan G AD - Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China. FAU - Luo, Mengcheng AU - Luo M AD - Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, China. FAU - Xu, Dan AU - Xu D AD - Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China. AD - Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, China. FAU - Wang, Hui AU - Wang H AD - Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China. AD - Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Endocrinology JT - Endocrinology JID - 0375040 RN - 0 (Steroidogenic Factor 1) RN - 0 (Steroids) RN - 0 (steroidogenic factor 1, rat) RN - 4TI98Z838E (Estradiol) RN - 67763-96-6 (Insulin-Like Growth Factor I) RN - 7S5I7G3JQL (Dexamethasone) SB - IM MH - Animals MH - Dexamethasone/blood/*toxicity MH - Estradiol/blood MH - Female MH - Fetal Blood/chemistry MH - Insulin-Like Growth Factor I/analysis MH - Male MH - Mitochondria/pathology MH - Ovary/chemistry/*drug effects/*embryology MH - Pedigree MH - Phenotype MH - Pregnancy MH - *Prenatal Exposure Delayed Effects MH - Rats MH - Rats, Wistar MH - Reproduction/drug effects MH - Specific Pathogen-Free Organisms MH - Steroidogenic Factor 1/analysis MH - Steroids/biosynthesis EDAT- 2018/01/26 06:00 MHDA- 2018/11/06 06:00 CRDT- 2018/01/26 06:00 PHST- 2018/01/12 00:00 [received] PHST- 2018/01/12 00:00 [accepted] PHST- 2018/01/26 06:00 [pubmed] PHST- 2018/11/06 06:00 [medline] PHST- 2018/01/26 06:00 [entrez] AID - 4822184 [pii] AID - 10.1210/en.2018-00044 [doi] PST - ppublish SO - Endocrinology. 2018 Mar 1;159(3):1401-1415. doi: 10.1210/en.2018-00044.