Extremely low-frequency magnetic fields can impair spermatogenesis recovery after reversible testicular damage induced by heat.

Autor: Tenorio BM; Department of Animal Morphology and Physiology, Federal Rural University of Pernambuco , Recife, Pernambuco , Brazil ., Ferreira Filho MB, Jimenez GC, de Morais RN, Peixoto CA, Nogueira Rde A, da Silva Junior VA
Jazyk: angličtina
Zdroj: Electromagnetic biology and medicine [Electromagn Biol Med] 2014 Jun; Vol. 33 (2), pp. 139-46. Date of Electronic Publication: 2013 Jun 19.
DOI: 10.3109/15368378.2013.795156
Abstrakt: Male infertility is often related to reproductive age couples experiencing fertility-related issues. Men may have fertility problems associated with reversible testicular damage. Considering that men have been increasingly exposed to extremely low-frequency magnetic fields generated by the production, distribution and use of electricity, this study analyzed whether 60 Hz and 1 mT magnetic field exposure may impair spermatogenesis recovery after reversible testicular damage induced by heat shock using rats as an experimental model. Adult male rats were subjected to a single testicular heat shock (HS, 43 °C for 12 min) and then exposed to the magnetic field for 15, 30 and 60 d after HS. Magnetic field exposure during the spermatogenesis recovery induced changes in testis components volume, cell ultrastructure and histomorphometrical parameters. Control animals had a reestablished and active spermatogenesis at 60 d after heat shock, while animals exposed to magnetic field still showed extensive testicular degeneration. Magnetic field exposure did not change the plasma testosterone. In conclusion, extremely low-frequency magnetic field may be harmful to fertility recovery in males affected by reversible testicular damage.
Databáze: MEDLINE
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