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Role of vitamin E in prevention of damages in the thymus induced by electromagnetic field: ultrastructural and light microscopic studies

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Mohammadnejad D., Rad J., Azami A., Lotfi A.

Bulletin of the Veterinary Institute in Puławy

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2011

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tom 55

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nr 1

Twenty-four male Wistar rats were selected and divided into three groups (control, test group 1, test group 2). The test group 1 was exposed to EMF (50 Hz, 3 mT) 8 h a day, 6 d per week for 2 months. Test group 2 was exposed to EMF (50 Hz, 3 mT) 8 h a day, 6 d per week for 2 months but received orally 30 mg of vitamin E/d. Rats in the control group neither were exposed to electromagnetic field nor received vitamin E. At the end of the experiment, the rats were sacrificed, dissected, and samples from the thymus were taken and processed for light and electron microscopic studies. Forty microscopic fields from each group were randomly selected and studied. The data showed that in the thymus of test group 1, the population of cells in the cortex was decreased but the number of macrophages was increased. EM study showed that cellular nuclei were heterochromatic in comparison to control group. Test group 2 was similar to the control group. These findings indicate that immune system is weakened by electromagnetic field but vitamin E supplementation prevented above alteration.

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In vitro shoot proliferation of Passiflora caerulea L. via cotyledonary node and shoot tip explants

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Jafari M., Daneshvar M. H., Lotfi A.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

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2017

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tom 98

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nr 2

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Effects of 900 MHz electromagnetic fields emitted from a cellular phone on the T3, T4, and cortisol levels in Syrian hamsters

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Shahryar H. A., Lotfi A., Ghodsi M. B., Bonary A. R. K.

Bulletin of the Veterinary Institute in Puławy

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2009

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tom 53

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nr 2

233-236

The effects of exposure to a 900 MHz electromagnetic field (EMF) on the serum cortisol and triiodothyronine-thyroxin (T₃-T₄) levels in adult male Syrian hamsters were evaluated. Seventy two hamsters were used in three independent groups: 24 served as controls (without exposure to stress and EMF), 24 were exposed to a 900 MHz EMF for 10 d, and 24 were exposed to a 900 MHz EMF for 50 d. The exposures were performed 1 h/d to a 900 MHz EMF emitted by cellular phones. The levels of cortisol and T₃-T₄ were measured by using an immunoradiometric assay (IRMA) method. The results revealed the cortisol values of the group, which was exposed to 900 MHz EMF for 50 d, were higher than those of the other groups (P<0.01). The levels of T₃ in the control group were higher than that of the long-term exposure group (P<0.01), and levels of T₄ in the 900 MHz EMF group for the long-term and short-term exposure groups, were higher than that of the control group (P <0.01). These results indicate that a 900 MHz EMF emitted by cellular phones, especially in the case of long-term exposure, increased the serum cortisol and T₄ levels and decreased the T₃ level, and suggest that it can destroy the endocrine system in general.

Ograniczanie wyników

2 Bulletin of the Veterinary Institute in Puławy

1 BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

3 Lotfi A.

1 Azami A.

1 Bonary A. R. K.

1 Daneshvar M. H.

1 Ghodsi M. B.

1 Jafari M.

1 Mohammadnejad D.

1 Rad J.

1 Shahryar H. A.

1 2017

1 2011

1 2009

Role of vitamin E in prevention of damages in the thymus induced by electromagnetic field: ultrastructural and light microscopic studies

In vitro shoot proliferation of Passiflora caerulea L. via cotyledonary node and shoot tip explants

Effects of 900 MHz electromagnetic fields emitted from a cellular phone on the T3, T4, and cortisol levels in Syrian hamsters