PMID- 20842647 OWN - NLM STAT- MEDLINE DCOM- 20110322 LR - 20240316 IS - 1542-0760 (Electronic) IS - 1542-0752 (Print) IS - 1542-0752 (Linking) VI - 88 IP - 11 DP - 2010 Nov TI - Magnetic resonance microscopy-based analyses of the brains of normal and ethanol-exposed fetal mice. PG - 953-64 LID - 10.1002/bdra.20719 [doi] AB - BACKGROUND: The application of magnetic resonance microscopy (MRM) to the study of normal and abnormal prenatal mouse development has facilitated discovery of dysmorphology following prenatal ethanol insult. The current analyses extend this work, providing a regional brain volume-based description of normal brain growth and illustrating the consequences of gestational day (GD) 10 ethanol exposure in the fetal mouse. METHODS: To assess normal growth, control C57Bl/6J fetuses collected on GD 16, GD 16.5, and GD 17 were scanned using a 9.4-T magnet, resulting in 29-mum isotropic resolution images. For the ethanol teratogenicity studies, C57Bl/6J dams were administered intraperitoneal ethanol (2.9 g/kg) at 10 days, 0 hr, and 10 days, 4 hr, after fertilization, and fetuses were collected for analyses on GD 17. From individual MRM scans, linear measurements and regional brain volumes were determined and compared. RESULTS: In control fetuses, each of the assessed brain regions increased in volume, whereas ventricular volumes decreased between GD 16 and GD 17. Illustrating a global developmental delay, prenatal ethanol exposure resulted in reduced body volumes, crown-rump lengths, and a generalized decrease in regional brain volumes compared with GD 17 controls. However, compared with GD 16.5, morphologically matched controls, ethanol exposure resulted in volume increases in the lateral and third ventricles as well as a disproportionate reduction in cortical volume. CONCLUSIONS: The normative data collected in this study facilitate the distinction between GD 10 ethanol-induced developmental delay and frank dysmorphology. This work illustrates the utility of MRM-based analyses for developmental toxicology studies and extends our knowledge of the stage-dependency of ethanol teratogenesis. CI - Copyright (c) 2010 Wiley-Liss, Inc. FAU - O'Leary-Moore, Shonagh K AU - O'Leary-Moore SK AD - Fetal Toxicology Division,Bowles Center for Alcohol Studies, University of North Carolina at Chapel Hill,Chapel Hill, NC 27599-7178E, USA. somoore@med.unc.edu FAU - Parnell, Scott E AU - Parnell SE FAU - Godin, Elizabeth A AU - Godin EA FAU - Dehart, Deborah B AU - Dehart DB FAU - Ament, Jacob J AU - Ament JJ FAU - Khan, Amber A AU - Khan AA FAU - Johnson, G Allan AU - Johnson GA FAU - Styner, Martin A AU - Styner MA FAU - Sulik, Kathleen K AU - Sulik KK LA - eng GR - HD 03110/HD/NICHD NIH HHS/United States GR - P41 RR005959/RR/NCRR NIH HHS/United States GR - P60 AA011605/AA/NIAAA NIH HHS/United States GR - P50 AA011605/AA/NIAAA NIH HHS/United States GR - P41 05959/PHS HHS/United States GR - P30 HD003110/HD/NICHD NIH HHS/United States GR - R00 AA018697/AA/NIAAA NIH HHS/United States GR - AA007573/AA/NIAAA NIH HHS/United States GR - U24 CA092656/CA/NCI NIH HHS/United States GR - U01 AA017124/AA/NIAAA NIH HHS/United States GR - T32 AA007573/AA/NIAAA NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20100914 PL - United States TA - Birth Defects Res A Clin Mol Teratol JT - Birth defects research. Part A, Clinical and molecular teratology JID - 101155107 RN - 3K9958V90M (Ethanol) SB - IM MH - Abnormalities, Drug-Induced/pathology MH - Animals MH - Brain/abnormalities/*drug effects/embryology MH - Disease Models, Animal MH - Ethanol/*toxicity MH - Female MH - Fetal Alcohol Spectrum Disorders/pathology MH - Fetus/*drug effects/pathology MH - Gestational Age MH - Humans MH - Magnetic Resonance Imaging/*methods MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Microscopy/methods MH - Pregnancy MH - Prenatal Exposure Delayed Effects/chemically induced/pathology PMC - PMC3445267 MID - NIHMS396785 EDAT- 2010/09/16 06:00 MHDA- 2011/03/23 06:00 PMCR- 2012/09/18 CRDT- 2010/09/16 06:00 PHST- 2010/06/01 00:00 [received] PHST- 2010/06/23 00:00 [revised] PHST- 2010/07/02 00:00 [accepted] PHST- 2010/09/16 06:00 [entrez] PHST- 2010/09/16 06:00 [pubmed] PHST- 2011/03/23 06:00 [medline] PHST- 2012/09/18 00:00 [pmc-release] AID - 10.1002/bdra.20719 [doi] PST - ppublish SO - Birth Defects Res A Clin Mol Teratol. 2010 Nov;88(11):953-64. doi: 10.1002/bdra.20719. Epub 2010 Sep 14.