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Effects of exposure to 50 Hz, 1 Gauss magnetic field on reproductive traits in male albino rats
Faculty
Veterinary Medicine
Year:
2011
Type of Publication:
Article
Pages:
107-111
Authors:
Saadeldin, Islam M, Fadel, Ali M, Hamada, Mohamed M. Z, El-Badry, Adel A
DOI:
10.2754/avb201180010107
Journal:
ACTA VETERINARIA BRNO VETERINARNI A FARMACEUTICKA UNIVERZITA BRNO
Volume:
80
Research Area:
Veterinary Sciences
ISSN
ISI:000289532200015
Keywords :
Magnetic field, male fertility, testis, sperm, testosterone, antioxidants, delayed effects
Abstract:
The effects of extremely low frequency magnetic field ELF-MF (50 Hz/l Gauss) on male fertility were studied in rats. Twenty eight adult male Wistar rats were divided into 4 groups, 2 experimental groups exposed to magnetic field for 21 days and 2 control groups (sham exposed). The first exposed group was sacrificed at the end of the exposure period, and the second exposed group was kept for extra 48 days post exposure to assess the delayed effects of exposure. Significant decrease in the testes weights, sperm motility, sperm count, normal sperms and live sperms was detected in the exposed groups compared to control. Serum testosterone concentrations were significantly increased after 21 days of exposure, and then these changes were corrected after 48 days post exposure. Superoxide dismutase, catalase activities and alpha-tocopherol concentration were significantly decreased after 21 days of exposure, while the later became non-significant after 48 days post exposure. L-ascorbate concentration was significantly increased after 21 days of exposure, and returned to normal 48 days post exposure. Histopathological examination of the testis from the exposed rats showed a disruption in its architecture with an increase in Leydig cell number and activity, whereas 48 days post exposure, the testicular germ cell layers increased with presence of high apoptotic rates. In conclusion, prolonged exposure to 50 Hz, 1 Gauss MF is biologically toxic to the testicular functions with oxidative stress on spemiatogenesis that subsequently may affect male fertility and his sexual efficiency.
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