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To investigate the effects of exposure to extremely low frequency magnetic fields on the morphology of the liver, kidney and testes of guinea pigs.
The animals were divided into six groups and exposed or sham exposed for five days: 1.) sham exposure 2 hours daily, 2.) exposure 2 hours daily (0.013 µT, 5 Hz), 3.) exposure 2 hours daily (0.207 µT, 50 Hz), 4.) sham exposure 4 hours daily, 5.) exposure 4 hours daily (0.013 µT, 5 Hz) and 6.) exposure 4 hours daily (0.207 µT, 50 Hz).
Remark EMF-Portal: No information about number of animals given.
| 周波数 | 5 Hz |
|---|---|
| タイプ |
|
| ばく露時間 | daily for 2 hours or 4 hours on 5 consecutive days |
| ばく露の発生源／構造 | |
|---|---|
| ばく露装置の詳細 | Solenoid consisted of 15 rings of armature winding with each ring consisting of 100 rounds of wire (i.e. a total of 1500 rounds of wire), a function generator was connected to the solenoid |
| 測定量 | 値 | 種別 | Method | Mass | 備考 |
|---|---|---|---|---|---|
| 磁束密度 | 0.013 µT | - | - | - | - |
In the liver of guinea pigs from group 5 (4 h daily, 5 Hz, magnetic flux density of 0.013 µT), a vacuolation of the cytoplasm was observed.
In the kidney of animals from group 5 (4 h daily, 5 Hz, 0.013 µT) and group 6 (4 h daily, 50 Hz, 0.207 µT), the epithelial cells of the tubules were swollen. Additionally, cell necrosis which caused a decrease in the lumen of the renal tubules was observed in these groups.
In the testes of animals from group 2 (2 h daily, 5 Hz, 0.013 µT) and group 5 (4 h daily, 5 Hz, 0.013 µT), atrophied seminiferous tubules and interstitial tissue was found as well as a decrease of leydig cells.
The authors conclude that extremely low frequency magnetic fields could affect the morphology of the liver, kidney and testes of guinea pigs.
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