Repetitive exposure of mice to strong static magnetic fields in utero does not impair fertility in adulthood but may affect placental weight of offspring

摘要: Purpose To investigate the effect of daily exposure in utero to static magnetic fields during prenatal development on germ cell and fertility exposed offspring adulthood. Materials Methods Mice were different field strengths at bore entrance or isocenter 1.5 T 7 MRI systems entire course development. Results In utero-exposed male mice revealed no strength weight testes epididymis sperm count, morphology, fertility. Exposed pregnant female showed reduced terms pregnancy rates litter size, pointing a normal ovarian function. However, placental intrauterine was observed that correlated with decrease embryonic those animals strongest field. This seemed be parent-dependent, since it not embryos fathered by mice. Conclusion Repetitive strong does impair but may have parental-dependent fetal programming regard growth. J. Magn. Reson. Imaging 2014;39:683–690. © 2013 Wiley Periodicals, Inc.