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Chronic Exposure to Static Magnetic Fields from Magnetic Resonance Imaging Devices Deserves Screening for Osteoporosis and Vitamin D Levels: A Rat Model

Author

Listed:
  • Harun R. Gungor

    (Orthopedics and Traumatology Department, Pamukkale University Medical Faculty, Denizli 20070, Turkey)

  • Semih Akkaya

    (Orthopedics and Traumatology Department, Pamukkale University Medical Faculty, Denizli 20070, Turkey)

  • Nusret Ok

    (Orthopedics and Traumatology Department, Pamukkale University Medical Faculty, Denizli 20070, Turkey)

  • Aygun Yorukoglu

    (Pathology Department, Servergazi State Hospital, Denizli 20100, Turkey)

  • Cagdas Yorukoglu

    (Orthopedics and Traumatology Department, Pamukkale University Medical Faculty, Denizli 20070, Turkey)

  • Esat Kiter

    (Orthopedics and Traumatology Department, Pamukkale University Medical Faculty, Denizli 20070, Turkey)

  • Emin O. Oguz

    (Histology and Embriology Department, Pamukkale University Medical Faculty, Denizli 20070, Turkey)

  • Nazan Keskin

    (Histology and Embriology Department, Pamukkale University Medical Faculty, Denizli 20070, Turkey)

  • Gulcin A. Mete

    (Histology and Embriology Department, Pamukkale University Medical Faculty, Denizli 20070, Turkey)

Abstract

Technicians often receive chronic magnetic exposures from magnetic resonance imaging (MRI) devices, mainly due to static magnetic fields (SMFs). Here, we ascertain the biological effects of chronic exposure to SMFs from MRI devices on the bone quality using rats exposed to SMFs in MRI examining rooms. Eighteen Wistar albino male rats were randomly assigned to SMF exposure (A), sham (B), and control (C) groups. Group A rats were positioned within 50 centimeters of the bore of the magnet of 1.5 T MRI machine during the nighttime for 8 weeks. We collected blood samples for biochemical analysis, and bone tissue samples for electron microscopic and histological analysis. The mean vitamin D level in Group A was lower than in the other groups ( p = 0.002). The mean cortical thickness, the mean trabecular wall thickness, and number of trabeculae per 1 mm 2 were significantly lower in Group A ( p = 0.003). TUNEL assay revealed that apoptosis of osteocytes were significantly greater in Group A than the other groups ( p = 0.005). The effect of SMFs in chronic exposure is related to movement within the magnetic field that induces low-frequency fields within the tissues. These fields can exceed the exposure limits necessary to deteriorate bone microstructure and vitamin D metabolism.

Suggested Citation

  • Harun R. Gungor & Semih Akkaya & Nusret Ok & Aygun Yorukoglu & Cagdas Yorukoglu & Esat Kiter & Emin O. Oguz & Nazan Keskin & Gulcin A. Mete, 2015. "Chronic Exposure to Static Magnetic Fields from Magnetic Resonance Imaging Devices Deserves Screening for Osteoporosis and Vitamin D Levels: A Rat Model," IJERPH, MDPI, vol. 12(8), pages 1-14, July.
    • Handle: RePEc:gam:jijerp:v:12:y:2015:i:8:p:8919-8932:d:53400
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    References listed on IDEAS

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    1. Valentina Hartwig & Giulio Giovannetti & Nicola Vanello & Massimo Lombardi & Luigi Landini & Silvana Simi, 2009. "Biological Effects and Safety in Magnetic Resonance Imaging: A Review," IJERPH, MDPI, vol. 6(6), pages 1-21, June.
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