| Developmental toxicity evaluation of ELF magnetic fields in Sprague-Dawley rats. | |
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MedLine Citation:
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PMID: 12696083 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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To identify possible effects of horizontally polarized magnetic field (MF) exposure on maintenance of pregnancy and embryo-fetal development, an MF exposure system was designed and constructed and 96 time-mated female Sprague-Dawley (SD) rats (24/group) received continuous exposure to 60 Hz MF at field strengths of 0 (sham control) and 5, 83.3, or 500 microT (50, 833, or 5000 mG). Dams received MF or sham exposures for 22 h/day on gestational day 6-20. MF was monitored continuously throughout the study. There were no evidences of maternal toxicity or developmental toxicity in any MF exposed groups. Mean maternal body weight, organ weights, and hematological and serum biochemical parameters in groups exposed to MF did not differ from those in sham control. No exposure related differences in fetal deaths, fetal body weight, and placental weight were observed between MF exposed groups and sham control. External, visceral, and skeletal examination of fetuses demonstrated no significant differences in the incidence of fetal malformations between MF exposed and sham control groups. In conclusion, exposure of pregnant rats to 60 Hz at MF strengths up to 500 microT during gestation day 6-20 did not produce any biologically significant effect in either dams or fetuses. |
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Authors:
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Moon-Koo Chung; Jong-Choon Kim; Sung-Ho Myung; Dong-Il Lee |
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Publication Detail:
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Type: Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Bioelectromagnetics Volume: 24 ISSN: 0197-8462 ISO Abbreviation: Bioelectromagnetics Publication Date: 2003 May |
Date Detail:
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Created Date: 2003-04-15 Completed Date: 2004-01-05 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8008281 Medline TA: Bioelectromagnetics Country: United States |
Other Details:
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Languages: eng Pagination: 231-40 Citation Subset: IM |
Copyright Information:
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Copyright 2003 Wiley-Liss, Inc. |
Affiliation:
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Reproductive Toxicology Division, Korea Institute of Toxicology, KRICT, Daejeon, Republic of Korea. mkchung@kitox.re.kr |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Abnormalities, Radiation-Induced
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etiology* Animals Body Weight / radiation effects* Electric Wiring Electromagnetic Fields / adverse effects* Embryonic and Fetal Development / physiology, radiation effects* Environmental Exposure / adverse effects* Female Organ Size / radiation effects Placenta / pathology Pregnancy / physiology, radiation effects* Pregnancy Outcome Rats Rats, Sprague-Dawley Reproduction / radiation effects |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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