PMID- 16263228 OWN - NLM STAT- MEDLINE DCOM- 20060502 LR - 20131121 IS - 0378-4274 (Print) IS - 0378-4274 (Linking) VI - 163 IP - 1 DP - 2006 May 5 TI - Tumor necrosis factor alpha partially contributes to lipopolysaccharide-induced intra-uterine fetal growth restriction and skeletal development retardation in mice. PG - 20-9 AB - Maternal infection is a cause of adverse developmental outcomes. Lipopolysaccharide (LPS)-induced embryonic resorption, intra-uterine fetal death (IUFD) and preterm labor have been well characterized. In the present study, we investigated the effects of maternal LPS exposure on intra-uterine fetal growth and skeletal development. All pregnant mice except controls received an intraperitoneal injection of LPS (75 microg/kg) on gestational days (GD) 15-17. The number of live fetuses, dead fetuses and resorption sites was counted on GD 18. Live fetuses in each litter were weighed. Crown-rump and tail lengths were examined and skeletal development was evaluated. As expected, perinatal LPS exposure resulted in 63.2% fetal death. LPS significantly lowered fetal weight, reduced crown-rump and tail lengths, and retarded skeletal ossification in caudal vertebrae, anterior and posterior phalanges, and supraoccipital bone. Additional experiment showed that a single dose of LPS (75 microg/kg, i.p.) on GD 15 increased the expression of TNF-alpha mRNA in maternal liver and placenta and TNF-alpha concentration in maternal serum and amniotic fluid. Furthermore, pentoxifylline, an inhibitor of TNF-alpha synthesis, significantly inhibited TNF-alpha production, reduced fetal mortality, and reversed LPS-induced fetal intra-uterine growth restriction and skeletal development retardation. Taken together, these results suggest that TNF-alpha is, at least in part, involved in LPS-induced intra-uterine fetal death, intra-uterine growth restriction and skeletal development retardation. FAU - Xu, De-Xiang AU - Xu DX AD - Department of Toxicology, Anhui Medical University, Hefei 230032, PR China. xudex@mail.hf.ah.cn FAU - Chen, Yuan-Hua AU - Chen YH FAU - Wang, Hua AU - Wang H FAU - Zhao, Lei AU - Zhao L FAU - Wang, Jian-Ping AU - Wang JP FAU - Wei, Wei AU - Wei W LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20051102 PL - Netherlands TA - Toxicol Lett JT - Toxicology letters JID - 7709027 RN - 0 (Lipopolysaccharides) RN - 0 (RNA, Messenger) RN - 0 (Thiobarbituric Acid Reactive Substances) RN - 0 (Tumor Necrosis Factor-alpha) RN - GAN16C9B8O (Glutathione) SB - IM MH - Amniotic Fluid/metabolism MH - Animals MH - Female MH - Fetal Development/*drug effects MH - Fetal Growth Retardation MH - Fetal Weight/drug effects MH - Gene Expression Regulation/drug effects MH - Glutathione/metabolism MH - Lipid Peroxidation/drug effects MH - Lipopolysaccharides/*toxicity MH - Male MH - *Maternal Exposure MH - Mice MH - Mice, Inbred ICR MH - Osteogenesis/*drug effects MH - Pregnancy MH - RNA, Messenger/biosynthesis MH - Thiobarbituric Acid Reactive Substances/metabolism MH - Tumor Necrosis Factor-alpha/*biosynthesis/genetics EDAT- 2005/11/03 09:00 MHDA- 2006/05/04 09:00 CRDT- 2005/11/03 09:00 PHST- 2005/07/25 00:00 [received] PHST- 2005/09/10 00:00 [revised] PHST- 2005/09/12 00:00 [accepted] PHST- 2005/11/03 09:00 [pubmed] PHST- 2006/05/04 09:00 [medline] PHST- 2005/11/03 09:00 [entrez] AID - S0378-4274(05)00276-6 [pii] AID - 10.1016/j.toxlet.2005.09.009 [doi] PST - ppublish SO - Toxicol Lett. 2006 May 5;163(1):20-9. doi: 10.1016/j.toxlet.2005.09.009. Epub 2005 Nov 2.