Effects of a 900-MHz Electromagnetic Field on Oxidative Stress Parameters in Rat Lymphoid Organs, Polymorphonuclear Leukocytes and Plasma

Aydın, Birsen; Akar, Ayşegül

doi:10.1016/j.arcmed.2011.06.001

Cited by 57 publications

(38 citation statements)

References 29 publications

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“…The present study used a maximum of seven sessions of 45-minute irradiation and found no measurable changes in the variables examined; it may be that since acute short-term irradiation is associated with very little tissue irritation, it causes only insignificant changes in serum enzyme levels, which is consistent with the results obtained by Chater et al (24). In contrast, chronic long-term irradiation causes a greater tissue irritation and does not have similar effects on different tissues such as the bone marrow, spleen, thymus, brain, and kidney, and also leads to significant changes in serum enzyme levels (14,15,25). As for the second reason for the disparity of the results, it should be noted that, in the present study, enzyme levels were assessed in the rats' blood serum and cannot be representative of small changes in the body organs.…”

Section: Discussionsupporting

confidence: 82%

“…Meanwhile, previous tests on the brain and kidney have shown a reduction in SOD levels after irradiation with 900 MHz frequency waves (14,15), while an increase was reported in SOD in the spleen, thymus, and bone marrow (25). Despite the similar wave frequencies used in these studies, the results are disparate, which may be due to the number of irradiation days and, also, the assessment of SOD at the tissue level and in specific tissues.…”

Section: Discussioncontrasting

confidence: 49%

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The Effects of Acute Mobile Phone Radiation on the Anxiety Level of Male Rats

Esmaili

Masoumi

Jadidi

et al. 2017

Middle East J Rehabil Health Stud

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Objectives: Despite two decades of using mobile phone, the biological effects of electromagnetic radiation remain controversial. The study was conducted to determine the effect of mobile phone waves on anxiety-like behaviors in male rats. Methods: A total number of 80 male naive rats were, randomly, divided into eight groups (Control, 900, 1 800, and 2 100 MHz exposure). The acute and chronic effects of mobile phone radiation on the anxiety profile was compared considering a 45-min session and seven sessions of radiation (45 min/day) using the elevated plus-maze (EPM) in rats. The number of rats entering the open and closed arms and their duration of stay in each of the arms were assessed. To estimate the oxidative stress, Superoxide Dismutase level in the blood serum was evaluated. Results:The results obtained in the EPM showed no significant differences among the groups after acute exposure to mobile phone radiation (P > 0.05). No significant differences were observed among the groups in terms of their serum superoxide dismutase level (P > 0.05). Conclusions: Short time mobile phone radiation had no effect on anxiety-like behaviors and serum enzyme activity; this may be due to low tissue irritation during acute exposure to mobile phone waves.

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Section: Discussionsupporting

confidence: 82%

Section: Discussioncontrasting

confidence: 49%

The Effects of Acute Mobile Phone Radiation on the Anxiety Level of Male Rats

Esmaili

Masoumi

Jadidi

et al. 2017

Middle East J Rehabil Health Stud

View full text Add to dashboard Cite

show abstract

“…Mobile phones for a 900-MHz GSM system and their base stations establish EMF in the range of 890-960 MHz. Studies have reported that EMF of such intensity leads to irreversible oxidative damage in the lymphoid organs of rats that have not yet reached adulthood as compared to adult rats (3).…”

Section: Introductionmentioning

confidence: 99%

The effects of prenatal long-duration exposure to 900-MHz electromagnetic field on the 21-day-old newborn male rat liver

Topal¹,

Hancı²,

Mercantepe³

et al. 2015

Turk J Med Sci

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Background/aim:To determine what effect a 900-MHz electromagnetic field (EMF) applied in the prenatal period would have on the liver in the postnatal period. Materials and methods:At the start of the study, adult pregnant rats were divided into two groups, control and experimental. The experimental group was exposed to a 900-MHz EMF for 1 h daily during days 13-21 of pregnancy. After birth, no procedure was performed on either mothers or pups. Male rat pups (n = 6) from the control group mothers (CGMR) and male rat pups (n = 6) from the experimental group mothers (EGMR) were sacrificed on postnatal day 21.Results: Biochemical analyses showed that malondialdehyde and superoxide dismutase values increased and glutathione levels decreased in the EGMR pups. Marked hydropic degeneration in the parenchyma, particularly in pericentral regions, was observed in light microscopic examination of EGMR sections stained with hematoxylin and eosin. Examinations under transmission electron microscope revealed vacuolization in the mitochondria, expansion in the endoplasmic reticulum, and necrotic hepatocytes. Conclusion:The study results show that a 900-MHz EMF applied in the prenatal period caused oxidative stress and pathological alterations in the liver in the postnatal period.

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“…Immature rats have been found to have high levels of irreversible oxidative stress after exposure to 900 MHz radiation [31], and repeated exposure at 42 GHz has been associated with altered immunogenic response [32]. Thymic involution during prolonged exposure to 50 Hz radiation [33] is accelerated by continuous light exposure [34].…”

Section: Discussionmentioning

confidence: 99%

An Experimental Multi-Frequency System for Studying Dosimetry and Acute Effects on Cell and Nuclear Morphology in Rat Tissues

López-Furelos¹,

Miñana-Maiques²,

Leiro³

et al. 2012

PIER

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Abstract-Simultaneous exposure to multiple electromagnetic signals with widely differing carrier frequencies is a reality of daily life, but its possible effects on health are unknown. In this study, we exposed rats to non-thermal levels of 900 and 2450 MHz TEM-mode radiation, applied individually or simultaneously, and we obtained estimates of 1 g mean SAR (specific absorption rate) in various tissues using a numerical model of the rat and finite-difference timedomain software. The experimental system comprised a GTEM (gigahertz TEM) chamber connected to two vector signal generators, a signal mixer and amplifier, a directional coupler, a spectrum analyzer and a power meter. Tissue sections from rats sacrificed 24 h after exposure, and from negative controls and positive controls exposed to gamma radiation, were stained with haematoxylin-eosin for evaluation of general cell morphology and with DAPI (4', 6-diamidino-2-phenylindole) for evaluation of apoptosis. Lesions, tissue destruction and apoptosis were only observed in positive controls. The results for rats exposed to either frequency, or to both simultaneously, were similar to those of unexposed negative controls. It remains to determine whether chronic exposure is similarly innocuous.

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Effects of a 900-MHz Electromagnetic Field on Oxidative Stress Parameters in Rat Lymphoid Organs, Polymorphonuclear Leukocytes and Plasma

Cited by 57 publications

References 29 publications

The Effects of Acute Mobile Phone Radiation on the Anxiety Level of Male Rats

The Effects of Acute Mobile Phone Radiation on the Anxiety Level of Male Rats

The effects of prenatal long-duration exposure to 900-MHz electromagnetic field on the 21-day-old newborn male rat liver

An Experimental Multi-Frequency System for Studying Dosimetry and Acute Effects on Cell and Nuclear Morphology in Rat Tissues

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