Increased Radioresistance to Lethal Doses of Gamma Rays in Mice and Rats after Exposure to Microwave Radiation Emitted by a GSM Mobile Phone Simulator

Mortazavi, S.M.J.; Mosleh-Shirazi, Mohammad Amin; Tavassoli, A R; Taheri, Mohammad; Mehdizadeh, Alireza; Namazi, Soha; Jamali, A; Ghalandari, R; Bonyadi, S; Haghani, M; Shafie, Mostafa

doi:10.2203/dose-response.12-010.mortazavi

Cited by 49 publications

(33 citation statements)

References 43 publications

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“…These observations were confirmed in two subsequent investigations [18, 19]. Similarly, an RF-induced AR was also reported by independent research groups in experimental mice, rats and continuously growing cultured human cells [20–25]. …”

Section: Introductionsupporting

confidence: 79%

Adaptive response in human blood lymphocytes exposed to non-ionizing radiofrequency fields: resistance to ionizing radiation-induced damage

Sannino

Zeni

Romeo

et al. 2013

Journal of Radiation Research

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The aim of this preliminary investigation was to assess whether human peripheral blood lymphocytes which have been pre-exposed to non-ionizing radiofrequency fields exhibit an adaptive response (AR) by resisting the induction of genetic damage from subsequent exposure to ionizing radiation. Peripheral blood lymphocytes from four healthy donors were stimulated with phytohemagglutinin for 24 h and then exposed for 20 h to 1950 MHz radiofrequency fields (RF, adaptive dose, AD) at an average specific absorption rate of 0.3 W/kg. At 48 h, the cells were subjected to a challenge dose (CD) of 1.0 or 1.5 Gy X-irradiation (XR, challenge dose, CD). After a 72 h total culture period, cells were collected to examine the incidence of micronuclei (MN). There was a significant decrease in the number of MN in lymphocytes exposed to RF + XR (AD + CD) as compared with those subjected to XR alone (CD). These observations thus suggested a RF-induced AR and induction of resistance to subsequent damage from XR. There was variability between the donors in RF-induced AR. The data reported in our earlier investigations also indicated a similar induction of AR in human blood lymphocytes that had been pre-exposed to RF (AD) and subsequently treated with a chemical mutagen, mitomycin C (CD). Since XR and mitomycin-C induce different kinds of lesions in cellular DNA, further studies are required to understand the mechanism(s) involved in the RF-induced adaptive response.

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Section: Introductionsupporting

confidence: 79%

Adaptive response in human blood lymphocytes exposed to non-ionizing radiofrequency fields: resistance to ionizing radiation-induced damage

Sannino

Zeni

Romeo

et al. 2013

Journal of Radiation Research

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“…As mentioned above, Mortazavi et al (2011Mortazavi et al ( , 2013b have recently shown that radiofrequency radiation can induce adaptive response phenomenon. Mortazavi et al (2012) have also recently shown that pre-exposure of BALB/c mice to radiofrequency radiation emitted from a GSM mobile phone increases their resistance to a subsequent bacterial infection.…”

Section: Radio Frequency-induced Adaptive Responsementioning

confidence: 90%

Non-Linear Adaptive Phenomena which Decrease the Risk of Infection after Pre-Exposure to Radiofrequency Radiation

et al. 2013

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Substantial evidence indicates that adaptive response induced by low doses of ionizing radiation can result in resistance to the damage caused by a subsequently high-dose radiation or cause cross-resistance to other non-radiation stressors. Adaptive response contradicts the linear-non-threshold (LNT) dose-response model for ionizing radiation. We have previously reported that exposure of laboratory animals to radiofrequency radiation can induce a survival adaptive response. Furthermore, we have indicated that pre-exposure of mice to radiofrequency radiation emitted by a GSM mobile phone increased their resistance to a subsequent Escherichia coli infection. In this study, the survival rates in animals receiving both adapting (radiofrequency) and challenge dose (bacteria) and the animals receiving only the challenge dose (bacteria) were 56% and 20%, respectively. In this light, our findings contribute to the assumption that radiofrequency-induced adaptive response can be used as an efficient method for decreasing the risk of infection in immunosuppressed irradiated individuals. The implication of this phenomenon in human's long term stay in the space is also discussed.

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“…In some countries, mobile jammers can be bought in electronic markets without any license; mobile phone jammers are occasionally used in universities to prevent students from cheating (receiving calls or text messages from other students who are taking part in the exam or other persons outside the university). Over the past several years, our laboratory has focused on investigation of the bioeffects of exposure to common sources of EMFs such as mobile phones,[8910111213] cavitrons,[1415] magnetic resonance imaging[16] and laptops[6] as well as non-biological effects. [17] This study is an attempt to investigate the effect of short-term exposure of human sperm samples to RF radiations emitted by common mobile jammers on their motility character.…”

Section: Introductionmentioning

confidence: 99%

Male reproductive health under threat: Short term exposure to radiofrequency radiations emitted by common mobile jammers

et al. 2013

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BACKGROUND:Modern life prompted man to increasingly generate, transmit and use electricity that leads to exposure to different levels of electromagnetic fields (EMFs). Substantial evidence indicates that exposure to common sources of EMF such as mobile phones, laptops or wireless internet-connected laptops decreases human semen quality. In some countries, mobile jammers are occasionally used in offices, shrines, conference rooms and cinemas to block the signal.AIMS:To the best of our knowledge, this is the first study to investigate the effect of short term exposure of human sperm samples to radiofrequency (RF) radiations emitted by common mobile jammers.SUBJECTS AND METHODS:Fresh semen samples were collected by masturbation from 30 healthy donors who had referred to Infertility Treatment Center at the Mother and Child Hospital with their wives. Female problem was diagnosed as the reason for infertility in these couples.STATISTICAL ANALYSIS:T-test and analysis of variance were used to show statistical significance.RESULTS:The motility of sperm samples exposed to jammer RF radiation for 2 or 4 h were significantly lower than those of sham-exposed samples. These findings lead us to the conclusion that mobile jammers may significantly decrease sperm motility and the couples’ chances of conception.CONCLUSION:Based on these results, it can be suggested that in countries that have not banned mobile jammer use, legislations should be urgently passed to restrict the use of these signal blocking devices in public or private places.

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Increased Radioresistance to Lethal Doses of Gamma Rays in Mice and Rats after Exposure to Microwave Radiation Emitted by a GSM Mobile Phone Simulator

Cited by 49 publications

References 43 publications

Adaptive response in human blood lymphocytes exposed to non-ionizing radiofrequency fields: resistance to ionizing radiation-induced damage

Adaptive response in human blood lymphocytes exposed to non-ionizing radiofrequency fields: resistance to ionizing radiation-induced damage

Non-Linear Adaptive Phenomena which Decrease the Risk of Infection after Pre-Exposure to Radiofrequency Radiation

Male reproductive health under threat: Short term exposure to radiofrequency radiations emitted by common mobile jammers

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