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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 effects of acute and chronic exposure to the ELF-EMF on plasma ACTH (panel A), adrenaline (panel B), and corticosterone (panel C) concentrations. Data are expressed as mean ± S.E.M of eight animals per group. +p<0.05, ++p<0.01, +++p<0.001 different from respective control group.
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f5-bt-22-570: The effects of acute and chronic exposure to the ELF-EMF on plasma ACTH (panel A), adrenaline (panel B), and corticosterone (panel C) concentrations. Data are expressed as mean ± S.E.M of eight animals per group. +p<0.05, ++p<0.01, +++p<0.001 different from respective control group.

Mentions: Our results indicated that plasma corticosterone was reduced in animals from both wave lengths over the time even though the plasma ACTH was elevated in these animals (Fig. 5). In addition, plasma adrenaline was increased in the animals exposed to 1 Hz but decreased in the animals exposed to 5 Hz waves respectively (Fig. 5). Results of two-way ANOVA analyses with p values for all different experiments showed in Table 1.


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 effects of acute and chronic exposure to the ELF-EMF on plasma ACTH (panel A), adrenaline (panel B), and corticosterone (panel C) concentrations. Data are expressed as mean ± S.E.M of eight animals per group. +p<0.05, ++p<0.01, +++p<0.001 different from respective control group.
© Copyright Policy - open-access
Related In: Results  -  Collection

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

f5-bt-22-570: The effects of acute and chronic exposure to the ELF-EMF on plasma ACTH (panel A), adrenaline (panel B), and corticosterone (panel C) concentrations. Data are expressed as mean ± S.E.M of eight animals per group. +p<0.05, ++p<0.01, +++p<0.001 different from respective control group.
Mentions: Our results indicated that plasma corticosterone was reduced in animals from both wave lengths over the time even though the plasma ACTH was elevated in these animals (Fig. 5). In addition, plasma adrenaline was increased in the animals exposed to 1 Hz but decreased in the animals exposed to 5 Hz waves respectively (Fig. 5). Results of two-way ANOVA analyses with p values for all different experiments showed in Table 1.

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