title: Teratological studies of prenatal exposure of mice to a 20 kHz sawtooth magnetic field.
abstract: In order to evaluate the importance of gestational age in possible effects due to exposure to a 20 kHz sawtooth magnetic field, pregnant ICR mice at gestational 2.5-15.5 days post-coitus, which is the most sensitive stage for the induction of major congenital malformations, were exposed in a carrousel irradiator. The mice were exposed to a 20 kHz intermediate frequency (IF) sawtooth magnetic field had a 6.5 microT peak intensity for 8 h/day. The animals were sacrificed on the 18th day of gestation; and the fetuses were examined for mortality, growth retardation, changes in head size, and other morphological abnormalities. From the above conditions, it is concluded that the exposure to a 20 kHz sawtooth magnetic field with 6.5 microT peak intensity does not inflict any adverse effect on fetuses of pregnant mice.
authors.affiliation: College of Veterinary Medicine, Chonnam National University, Kwangju, South Korea. yslee@kcch.re.kr
authors.forename: Sung-Ho
authors.initials: SH
authors.lastname: Kim
authors.forename: Ji-Eun
authors.initials: JE
authors.lastname: Song
authors.forename: Se-ra
authors.initials: SR
authors.lastname: Kim
authors.forename: Heon
authors.initials: H
authors.lastname: Oh
authors.forename: Youn-Myoung
authors.initials: YM
authors.lastname: Gimm
authors.forename: Done-Sik
authors.initials: DS
authors.lastname: Yoo
authors.forename: Jeong-Ki
authors.initials: JK
authors.lastname: Pack
authors.forename: Yun-Sil
authors.initials: YS
authors.lastname: Lee
mesh_terms: D000016:Abnormalities, Radiation-Induced / Q000209:etiology*; D000818:Animals; D004307:Dose-Response Relationship, Radiation; D004574:Electromagnetic Fields; D005260:Female; D005313:Fetal Death / Q000209:etiology*; D005317:Fetal Growth Retardation / Q000209:etiology*; D020567:Fetal Weight / Q000528:radiation effects*; D005333:Fetus / Q000528:radiation effects*; D051379:Mice; D008813:Mice, Inbred ICR; D011247:Pregnancy; D011297:Prenatal Exposure Delayed Effects; D011829:Radiation Dosage; D016019:Survival Analysis