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Effects of electromagnetic radiation exposure on stress-related behaviors and stress hormones in male wistar rats.

Mahdavi SM, Sahraei H, Yaghmaei P, Tavakoli H - Biomol Ther (Seoul) (2014)

Bottom Line: Plasma glucose level was increased and decreased in the groups which exposed to the 5 and 1Hz wave, respectively.Plasma ACTH concentration increased in both using frequencies, whereas nor-adrenaline concentration showed overall reduction.In conclusions, these data showed that the effects of 1 and 5 Hz on the hormonal, metabolic and stress-like behaviors may be different.

View Article: PubMed Central - PubMed

Affiliation: Department of Biology, Science and research Branch, Islamic Azad University, Tehran.

ABSTRACT
Studies have demonstrated that electromagnetic waves, as the one of the most important physical factors, may alter cognitive and non-cognitive behaviors, depending on the frequency and energy. Moreover, non-ionizing radiation of low energy waves e.g. very low frequency waves could alter this phenomenon via alterations in neurotransmitters and neurohormones. In this study, short, medium, and long-term exposure to the extremely low frequency electromagnetic field (ELF-EMF) (1 and 5 Hz radiation) on behavioral, hormonal, and metabolic changes in male Wistar rats (250 g) were studied. In addition, changes in plasma concentrations for two main stress hormones, noradrenaline and adrenocorticotropic hormone (ACTH) were evaluated. ELF-EMF exposure did not alter body weight, and food and water intake. Plasma glucose level was increased and decreased in the groups which exposed to the 5 and 1Hz wave, respectively. Plasma ACTH concentration increased in both using frequencies, whereas nor-adrenaline concentration showed overall reduction. At last, numbers of rearing, sniffing, locomotor activity was increased in group receiving 5 Hz wave over the time. In conclusions, these data showed that the effects of 1 and 5 Hz on the hormonal, metabolic and stress-like behaviors may be different. Moreover, the influence of waves on stress system is depending on time of exposure.

No MeSH data available.


Related in: MedlinePlus

ELF electromagnetic field generator.
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f1-bt-22-570: ELF electromagnetic field generator.

Mentions: The radiation were carried out using the ELF electromagnetic field generator depicted in Fig. 1 on six animals were placed in a cage made by Plexiglas (60×60×60 cm) once a day with 75 mW and 0.1 mT. For possible intervention of external interference to testingwave a spatial room has been designed in as much as the whole room parts, including the ceiling and walls, windows, even the smallest openings fully covered by aluminum foil (0.4 mm diameter). For further conformation this step had been checked by a wave detectorand lack of effective radiation in shielded room was confirmed. Then electromagnetic generating device antenna was fitted to the symmetrical (for waves uniformly irradiation) in the top boxes. All conditions have been done for control group except the irradiation.


Effects of electromagnetic radiation exposure on stress-related behaviors and stress hormones in male wistar rats.

Mahdavi SM, Sahraei H, Yaghmaei P, Tavakoli H - Biomol Ther (Seoul) (2014)

ELF electromagnetic field generator.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4256039&req=5

f1-bt-22-570: ELF electromagnetic field generator.
Mentions: The radiation were carried out using the ELF electromagnetic field generator depicted in Fig. 1 on six animals were placed in a cage made by Plexiglas (60×60×60 cm) once a day with 75 mW and 0.1 mT. For possible intervention of external interference to testingwave a spatial room has been designed in as much as the whole room parts, including the ceiling and walls, windows, even the smallest openings fully covered by aluminum foil (0.4 mm diameter). For further conformation this step had been checked by a wave detectorand lack of effective radiation in shielded room was confirmed. Then electromagnetic generating device antenna was fitted to the symmetrical (for waves uniformly irradiation) in the top boxes. All conditions have been done for control group except the irradiation.

Bottom Line: Plasma glucose level was increased and decreased in the groups which exposed to the 5 and 1Hz wave, respectively.Plasma ACTH concentration increased in both using frequencies, whereas nor-adrenaline concentration showed overall reduction.In conclusions, these data showed that the effects of 1 and 5 Hz on the hormonal, metabolic and stress-like behaviors may be different.

View Article: PubMed Central - PubMed

Affiliation: Department of Biology, Science and research Branch, Islamic Azad University, Tehran.

ABSTRACT
Studies have demonstrated that electromagnetic waves, as the one of the most important physical factors, may alter cognitive and non-cognitive behaviors, depending on the frequency and energy. Moreover, non-ionizing radiation of low energy waves e.g. very low frequency waves could alter this phenomenon via alterations in neurotransmitters and neurohormones. In this study, short, medium, and long-term exposure to the extremely low frequency electromagnetic field (ELF-EMF) (1 and 5 Hz radiation) on behavioral, hormonal, and metabolic changes in male Wistar rats (250 g) were studied. In addition, changes in plasma concentrations for two main stress hormones, noradrenaline and adrenocorticotropic hormone (ACTH) were evaluated. ELF-EMF exposure did not alter body weight, and food and water intake. Plasma glucose level was increased and decreased in the groups which exposed to the 5 and 1Hz wave, respectively. Plasma ACTH concentration increased in both using frequencies, whereas nor-adrenaline concentration showed overall reduction. At last, numbers of rearing, sniffing, locomotor activity was increased in group receiving 5 Hz wave over the time. In conclusions, these data showed that the effects of 1 and 5 Hz on the hormonal, metabolic and stress-like behaviors may be different. Moreover, the influence of waves on stress system is depending on time of exposure.

No MeSH data available.


Related in: MedlinePlus