Modifying effects of low-intensity extremely high-frequency electromagnetic radiation on content and composition of fatty acids in thymus of mice exposed to X-rays

Gapeyev, A. B.; Aripovsky, A. V.; Кулагина, Т. П.

doi:10.3109/09553002.2014.980467

Cited by 7 publications

(5 citation statements)

References 44 publications

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“…Thymus and spleen are the most important hematopoietic organs. Our data showed that thymus and spleen index was reduced after irradiation ( p < 0.05), which is consistent with other reports [ 18 , 19 ]. The thymus index at seven and 14 days after irradiation and the spleen index at 14 days after irradiation were increased by L. ruthenicum ( p < 0.05) .…”

Section: Discussionsupporting

confidence: 93%

Protective Effect of Lycium ruthenicum Murr. Against Radiation Injury in Mice

Duan

Chen

Yao

et al. 2015

IJERPH

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The protective effect of Lycium ruthenicum Murr. against radiation injury was examined in mice. Kunming mice were randomly divided into a control group, model group, positive drug group and L. ruthenicum high dose (8 g/kg), L. ruthenicum middle dose (4 g/kg), L. ruthenicum low dose (2 g/kg) treatment groups, for which doses were administered the third day, seventh day and 14th day after irradiation. L. ruthenicum extract was administered orally to the mice in the three treatment groups and normal saline was administered orally to the mice in the control group and model group for 14 days. The positive group was treated with amifostine (WR-2721) at 30 min before irradiation. Except for the control group, the groups of mice received a 5 Gy quantity of X-radiation evenly over their whole body at one time. Body weight, hemogram, thymus and spleen index, DNA, caspase-3, caspase-6, and P53 contents were observed at the third day, seventh day, and 14th day after irradiation. L. ruthenicum could significantly increase the total red blood cell count, hemoglobin count and DNA contents (p < 0.05). The spleen index recovered significantly by the third day and 14th day after irradiation (p < 0.05). L. ruthenicum low dose group showed a significant reduction in caspase-3 and caspase-6 of serum in mice at the third day, seventh day, and 14th day after irradiation and L. ruthenicum middle dose group experienced a reduction in caspase-6 of serum in mice by the seventh day after irradiation. L. ruthenicum could decrease the expression of P53. The results showed that L. ruthenicum had protective effects against radiation injury in mice.

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Section: Discussionsupporting

confidence: 93%

Protective Effect of Lycium ruthenicum Murr. Against Radiation Injury in Mice

Duan

Chen

Yao

et al. 2015

IJERPH

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“…The frequency used in that experiment was similar to the one we used, although power density was almost 10-fold higher, and this difference alone might have affected the results. Some positive results have been obtained when 42.2-GHz millimeter waves were used on murine cells or mice in in vivo experiments [27–32]. However, these experiments used conditions totally different from ours.…”

Section: Discussionmentioning

confidence: 91%

Long-term exposure to a 40-GHz electromagnetic field does not affect genotoxicity or heat shock protein expression in HCE-T or SRA01/04 cells

Koyama

Narita

Suzuki

et al. 2019

Journal of Radiation Research

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Millimeter waves are used in various fields, and the risks of this wavelength range for human health must be carefully evaluated. In this study, we investigated the effects of millimeter waves on genotoxicity and heat shock protein expression in human corneal epithelial (HCE-T) and human lens epithelial (SRA01/04) cells. We exposed the cells to 40-GHz millimeter waves at 1 mW/cm2 for 24 h. We observed no statistically significant increase in the micronucleus (MN) frequency or the level of DNA strand breaks in cells exposed to 40-GHz millimeter waves relative to sham-exposed and incubator controls. Heat shock protein (Hsp) expression also exhibited no statistically significant response to the 40-GHz exposure. These results indicate that exposure to 40 GHz millimeter waves under these conditions has little or no effect on MN formation, DNA strand breaks, or Hsp expression in HCE-T or SRA01/04 cells.

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“…The authors also examined the effect of exposure to X-rays of healthy mice, which was reported to reduce the total weight of the thymus. However, when the thymus was exposed to MMWs before or after exposure to X-rays, the fatty acid content was restored and was no longer significantly different from controls [112]. Overall, the authors reported a potential protective effect of MMWs on the recovery of fatty acids, however, all the results came from the same research group with a lack of replication from others.…”

Section: Other Effectsmentioning

confidence: 87%

“…The effect on fatty acid composition in mice exposed to MMWs has been examined by a Russian research group using a number of experimental methods [110][111][112]. One study that exposed mice afflicted with an inflammatory condition to low-level MMWs reported no change in the fatty acid concentrations in the blood plasma.…”

Section: Other Effectsmentioning

confidence: 99%

5G mobile networks and health—a state-of-the-science review of the research into low-level RF fields above 6 GHz

Karipidis¹,

Mate²,

Urban³

et al. 2021

J Expo Sci Environ Epidemiol

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The increased use of radiofrequency (RF) fields above 6 GHz, particularly for the 5 G mobile phone network, has given rise to public concern about any possible adverse effects to human health. Public exposure to RF fields from 5 G and other sources is below the human exposure limits specified by the International Commission on Non-Ionizing Radiation Protection (ICNIRP). This state-of-the science review examined the research into the biological and health effects of RF fields above 6 GHz at exposure levels below the ICNIRP occupational limits. The review included 107 experimental studies that investigated various bioeffects including genotoxicity, cell proliferation, gene expression, cell signalling, membrane function and other effects. Reported bioeffects were generally not independently replicated and the majority of the studies employed low quality methods of exposure assessment and control. Effects due to heating from high RF energy deposition cannot be excluded from many of the results. The review also included 31 epidemiological studies that investigated exposure to radar, which uses RF fields above 6 GHz similar to 5 G. The epidemiological studies showed little evidence of health effects including cancer at different sites, effects on reproduction and other diseases. This review showed no confirmed evidence that low-level RF fields above 6 GHz such as those used by the 5 G network are hazardous to human health. Future experimental studies should improve the experimental design with particular attention to dosimetry and temperature control. Future epidemiological studies should continue to monitor long-term health effects in the population related to wireless telecommunications.

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Modifying effects of low-intensity extremely high-frequency electromagnetic radiation on content and composition of fatty acids in thymus of mice exposed to X-rays

Cited by 7 publications

References 44 publications

Protective Effect of Lycium ruthenicum Murr. Against Radiation Injury in Mice

Protective Effect of Lycium ruthenicum Murr. Against Radiation Injury in Mice

Long-term exposure to a 40-GHz electromagnetic field does not affect genotoxicity or heat shock protein expression in HCE-T or SRA01/04 cells

5G mobile networks and health—a state-of-the-science review of the research into low-level RF fields above 6 GHz

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