Effect of low-intensity extremely high frequency radiation on reproductive function in Wistar rats

Субботина, Т. И.; Tereshkina, O. V.; Хадарцев, А. А.; Yashin, A. A.

doi:10.1007/s10517-006-0324-8

Cited by 11 publications

(6 citation statements)

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“…Exposure durations were between 4 and 18 weeks. In the case of higher frequency RF (such as 1835 MHz, 30–300 GHz, and 9.45 GHz), investigators have not induced any abnormalities in spermatogenesis [Subbotina et al, 2006; Ribeiro et al, 2007]. In this experiment, we adopted a dose rate (2 W/kg) higher than that used in other published articles.…”

Section: Discussionmentioning

confidence: 99%

The lack of histological changes of CDMA cellular phone‐based radio frequency on rat testis

Lee

Pack

Kim

et al. 2010

Bioelectromagnetics

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We examined the histological changes by radiofrequency (RF) fields on rat testis, specifically with respect to sensitive processes such as spermatogenesis. Male rats were exposed to 848.5 MHz RF for 12 weeks. The RF exposure schedule consisted of two 45-min RF exposure periods, separated by a 15-min interval. The whole-body average specific absorption rate (SAR) of RF was 2.0 W/kg. We then investigated correlates of testicular function such as sperm counts in the cauda epididymis, malondialdehyde concentrations in the testes and epididymis, frequency of spermatogenesis stages, germ cell counts, and appearance of apoptotic cells in the testes. We also performed p53, bcl-2, caspase 3, p21, and PARP immunoblotting of the testes in sham- and RF-exposed animals. Based on these results, we concluded that subchronic exposure to 848.5 MHz with 2.0 W/kg SAR RF did not have any observable adverse effects on rat spermatogenesis.

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Section: Discussionmentioning

confidence: 99%

The lack of histological changes of CDMA cellular phone‐based radio frequency on rat testis

Lee

Pack

Kim

et al. 2010

Bioelectromagnetics

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“…The parameters applied in the MW-electromagnetic field are in accordance with those that are already well-characterized and are known to induce a positive biological effect without heating. These frequencies and regimens are applied in therapeutic purposes, namely for the treatment of chronical prostatitis ( 3 , 5 ). The duration of treatment in the present study was within the therapeutically applied parameters.…”

Section: Discussionmentioning

confidence: 99%

“…The biological effects of electromagnetic irradiation depend on characteristics such as induction, frequency and duration of exposure. The short-wave range , corresponding to the cell's natural oscillations, is the most attractive range for investigations (3)(4)(5). It is considered that the MW action on the cells leads to the correction or restoration of their natural oscillations, which results in increased membrane stability and the maintenance or extension of the cell viability.…”

Section: Introductionmentioning

confidence: 99%

Assessing the biological effects of microwave irradiation on human semen in vitro and determining the role of seminal plasma polyamines in this process

Плосконос

Zulbalaeva²,

Kurbangalieva³

et al. 2022

Biomed Rep

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The aim of the present study was to investigate the influence of millimeter-wave electromagnetic (MW) irradiation on normal and pathological human sperm in vitro, and to evaluate a possible role of polyamines (PA) in this process. The stability of sperm membranes, the number of apoptotic gametes, and the content of seminal plasma PA in the ejaculates of fertile and subfertile men were compared before and after short-term MW electromagnetic exposure in vitro. The ejaculate samples were collected from healthy donors [n=25, age 22-38 years old (y.o.), average age 30.6±1.1 y.o. (mean ± SEM)] and from subfertile men (n=78, age 25-48 y.o., average age 34.1±0.8 y.o.) and exposed to MW radiation. The electromagnetic field had a wavelength of 7.1 mm, a frequency of 42.194 GHz and an exposure time of 20 min. The fragility of sperm membranes was evaluated by their resistance to sodium chloride solution (Milovanov test) and to acetic acid (Joel test). Acrosin activity was assayed spectrophotometrically. Apoptosis was determined by the externalization of phosphatidylserine on the outer side of the sperm membrane and propidium iodide staining. The PA levels were determined by agar gel electrophoretic fractionation. An increase in the resistance of sperm membranes, a decrease in acrosin activity, a decrease in the number of apoptotic gametes and a decrease in the seminal plasma PA concentrations were found after exposure of the native human sperm to low-intensity MW irradiation. Two types of reactions were revealed for the subfertile samples. The results revealed positive bio-effects of specific microwaves on the human semen and the participation of PA in the realization of these effects.

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“…Dasdag et al [2008] used SAR ranges between 0.07 and 0.57 W/kg, which fall within the low dose range, and exposure durations were between 4 and 18 weeks. In the case of higher frequency RF‐EMF (such as 1835 MHz, 30–300 GHz, and 9.45 GHz), investigators have not been able to induce any abnormalities in spermatogenesis [Subbotina et al, 2006; Ribeiro et al, 2007]. In this experiment, we adopted a dose rate higher than that used in other published articles (4 W/kg) and also a combined exposure to CDMA and WCDMA RF‐EMF.…”

Section: Discussionmentioning

confidence: 99%

The effects of simultaneous combined exposure to CDMA and WCDMA electromagnetic fields on rat testicular function

Lee

Jin

Kim

et al. 2011

Bioelectromagnetics

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Wireless mobile phones and other telecommunication devices are used extensively in daily life. We therefore examined the effects of combined exposure to radiofrequency electromagnetic fields (RF-EMF) on rat testicular function, specifically with respect to sensitive processes such as spermatogenesis. Male rats were exposed to single code division multiple access (CDMA) and wideband code division multiple access (WCDMA) RF signals for 12 weeks. The RF exposure schedule comprised 45 min/day, 5 days/week for a total of 12 weeks. The whole-body average specific absorption rate (SAR) of CDMA and WCDMA was 2.0 W/kg each or 4.0 W/kg in total. We then investigated the correlates of testicular function such as sperm count in the cauda epididymis, testosterone concentration in the blood serum, malondialdehyde concentrations in the testes and epididymis, frequency of spermatogenesis stages, and appearance of apoptotic cells in the testes. We also immunoblotted for p53, bcl2, GADD45, cyclin G, and HSP70 in the testes of sham- and combined RF-exposed animals. Based on the results, we concluded that simultaneous exposure to CDMA and WCDMA RF-EMFs at 4.0 W/kg SAR did not have any observable adverse effects on rat spermatogenesis.

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Effect of low-intensity extremely high frequency radiation on reproductive function in Wistar rats

Abstract: The exposure to low-intensity extremely high frequency electromagnetic radiation during spermatogenesis was accompanied by pathological changes, which resulted in degeneration and polymorphism of spermatozoa. The number of newborn rats increased in the progeny of irradiated animals.

Cited by 11 publications

References 0 publications

The lack of histological changes of CDMA cellular phone‐based radio frequency on rat testis

The lack of histological changes of CDMA cellular phone‐based radio frequency on rat testis

Assessing the biological effects of microwave irradiation on human semen in vitro and determining the role of seminal plasma polyamines in this process

The effects of simultaneous combined exposure to CDMA and WCDMA electromagnetic fields on rat testicular function

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