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Histological characteristics of cutaneous and thyroid mast cell populations in male rats exposed to power-frequency electromagnetic fields

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Authors not listed · 2005

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The study reported certain alterations in cutaneous and thyroid mast cell populations in male rats exposed to power-frequency electromagnetic fields.

Plain English Summary

Summary written for general audiences

Researchers exposed two-month-old Wistar male rats to 50 Hz electromagnetic fields at 100-300 microT and 54-160 V/m for 4 h a day, seven days a week for one month. After sacrifice, skin and thyroid samples were processed for toluidine blue staining or indirect immunohistochemistry, and stereological analysis was performed using an M42 grid and a special microscopic frame. The numerical and volume density of intact type A mast cells in the thyroid was significantly higher in the exposed group compared to controls. Mast cells and immunoreactive nerve fibers were observed in the skin, and histamine-immunoreactive mast cells were observed in the thyroid of exposed animals. However, the differences in stereological data were not statistically significant by the Mann-Whitney test.

Why This Matters

The study aimed to determine whether mast cells in skin and thyroid, cutaneous nerve fibers, and eosinophils are sensitive to electromagnetic fields. The authors noted that the possible outcome of changes in the mast cell population under EMF influence on morphophysiological properties of other structures in skin and thyroid requires further investigation.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 50 Hz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 50 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study.

Cite This Study
Unknown (2005). Histological characteristics of cutaneous and thyroid mast cell populations in male rats exposed to power-frequency electromagnetic fields.
Show BibTeX
@article{histological_characteristics_of_cutaneous_and_thyroid_mast_cell_populations_in_male_rats_exposed_to_power_frequency_electromagnetic_fields_ce1467,
  author = {Unknown},
  title = {Histological characteristics of cutaneous and thyroid mast cell populations in male rats exposed to power-frequency electromagnetic fields},
  year = {2005},
  doi = {10.1080/09553000500303518},
  
}

Quick Questions About This Study

Rats were exposed to 50 Hz EMF at 100-300 microT and 54-160 V/m for 4 h a day, seven days a week for one month.
Mast cells and immunoreactive nerve fibers were observed in the skin of exposed animals.
The results indicate certain alterations of cutaneous and thyroid mast cells in rats exposed to EMF. The possible outcome of these changes on morphophysiological properties of other structures in skin and thyroid requires further investigation.
Skin and thyroid samples were processed for toluidine blue staining or indirect immunohistochemistry, and stereological analysis was performed using an M42 grid and a special microscopic frame.