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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

The time-line of the experiments as described in the text.
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f2-bt-22-570: The time-line of the experiments as described in the text.

Mentions: The testing process is divided into two phases, and each phase lasting for 21 days. In this study, two frequencies of 1 and 5 Hz were used (once a day, 75 mW and 0.1 mT). In each phase, on days 1, 3, 7, 14 and 21 the animals were sacrifice for biological assessments. Blood samples, brain, adrenal gland were collected for further analysis. Eight animals were used in each experimental group. The time-line of the experiments procedure is shown in Fig. 2.


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)

The time-line of the experiments as described in the text.
© Copyright Policy - open-access
Related In: Results  -  Collection

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

f2-bt-22-570: The time-line of the experiments as described in the text.
Mentions: The testing process is divided into two phases, and each phase lasting for 21 days. In this study, two frequencies of 1 and 5 Hz were used (once a day, 75 mW and 0.1 mT). In each phase, on days 1, 3, 7, 14 and 21 the animals were sacrifice for biological assessments. Blood samples, brain, adrenal gland were collected for further analysis. Eight animals were used in each experimental group. The time-line of the experiments procedure is shown in Fig. 2.

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