Effects of a 50 Hz magnetic field on the female rat´s thyroid gland in production of C cells

*Ewa Ogłodek¹, Danuta Mo?², Aleksander Araszkiewicz¹

Summary
Aim: The aim of this study was to assess the effect of extremely low-frequency magnetic fields (ELF-MF) featuring magnetotherapeutic parameters used for analgesia and cell metabolism stimulation on the activity of the female rat´s thyroid gland in production of C cells synthesizing calcitonin. The ELF-MF boost secretion of calcitonin through the impact on the nerve fibres of the C cells which are located in proximity of their basement membrane.
MATERIAL AND METHOD: 24 female Wistar rats, Hannover substrain, aged 10 months, weighing 300 +/- 50 g each, were included in the experiment. Each of the rats underwent ovariectomy from a lumbar approach in the 6th month of life. The rats were divided into 2 groups: group "40”, exposed to extremely low-frequency magnetic fields of frequency 40 Hz; and control group "C” – sham exposure.
Results: In the thyroid preparations C cells and in rat´s serum calcium complex concentrations (CC-C) and calcium ion concentrations (CI-C) were evaluated.
Conclusions: The mean R-CALCY, calcium complex concentrations (CC-C) and calcium ion concentrations (CI-C) in group ´40´ were significantly different from the mean R-CALCY, CC-C and CI-C in group ´C´. ELF-MF stimulate the body to secrete calcitonin and deposit calcium in the osseous tissue. ELF-MF show a therapeutic effect on the bones, as more calcium accumulates in the bones under its influence.

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