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J Appl Toxicol. 2011 Apr;31(3):223-30. doi: 10.1002/jat.1584. Epub 2010 Oct 8.

Testicular development evaluation in rats exposed to 60 Hz and 1 mT electromagnetic field.

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  • 1Federal Rural University of Pernambuco, Department of Animal Morphology and Physiology, Recife, Brazil.


Society has been increasingly exposed to low-frequency electromagnetic fields (EMF), mainly from electricity distribution networks and electro-electronic devices. Aiming to clarify the extension of possible interactions between EMF and testicular development, this study evaluated the effects of exposure to 60 Hz and 1 mT EMF in the maturation of testicular components. Wistar rats were exposed to EMF three times per day for 30 min, between the 13th day of gestation and the 21st postnatal day. Results showed a decrease in the following parameters: tubular diameter and seminiferous tubules area; seminiferous epithelium height; total volume of seminiferous tubule; tubular lumen; seminiferous epithelium; and Leydig cells. On the other hand, an increase was observed in connective tissue cells and blood vessels volume. Plasma testosterone, Sertoli cells population, tubular length and gonadosomatic index did not change when exposed to EMF. Histomorphometric analysis showed that exposure to EMF can promote a delay in testicular development.

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