6,486 Studies Reviewed. 85.2% of Original Studies Found Biological Effects. The Evidence is Clear.

EMF Research Studies

Browse 6,486 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.

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A study of neurotoxic biomarkers, c-fos and GFAP after acute exposure to GSM radiation at 900 MHz in the picrotoxin model of rat brains

Carballo-Quintás M et al. · 2011

Researchers studied the effects of acute 900 MHz GSM radiation exposure on neurotoxic biomarkers c-fos and GFAP in rats also treated with picrotoxin, a seizure-promoting agent. Seventy-two adult male Sprague-Dawley rats underwent immunochemical testing to measure c-fos induction after 90 minutes and 24 hours, and GFAP 72 hours after acute exposure to a 900 MHz electromagnetic field. The results indicated that c-fos and glial markers were triggered by the combined stress of non-thermal irradiation and the toxic effect of picrotoxin on brain tissue.

Effect of electromagnetic radiofrequency radiation on the rats' brain, liver and kidney cells measured by comet assay.

Trosić I et al. · 2011

Researchers exposed male Wistar rats to 915 MHz radiofrequency radiation with GSM modulation at a whole-body average SAR of 0.6 W/kg for one hour per day, seven days per week over two weeks. A comet assay was used to assess DNA damage, measuring tail length and tail intensity. Tail length notably differed in liver and kidney homogenates of exposed animals compared to sham controls, and the tail was slightly elongated in irradiated animals' brain cells. The results suggest that repeated 915 MHz irradiation could be a cause of DNA breaks in renal and liver cells, but did not affect the cell genome at a higher extent compared to basal damage.

Repeated exposure attenuates the behavioral response of rats to static high magnetic fields

Unknown authors · 2010

Rats were pre-exposed two times to a 14 T static magnetic field for 30 min on two consecutive days and on the third day given access to a novel 0.125% saccharin prior to a third 30-min exposure. Pre-exposed rats showed less locomotor circling and an attenuated conditioned taste aversion compared to sham-exposed rats. Rearing was suppressed in all magnet-exposed groups regardless of pre-exposure, suggesting that the suppression of rearing is more sensitive than other behavioral responses to magnet exposure.

DNA & Genetic DamageNo Effects Found

Effect of 2.45 mT sinusoidal 50 Hz magnetic field on Saccharomyces cerevisiae strains deficient in DNA strand breaks repair

Unknown authors · 2010

Researchers exposed wild-type and DNA-repair-deficient Saccharomyces cerevisiae strains to a 2.45 mT, 50 Hz sinusoidal magnetic field for 96 hours. Growth increased significantly in the rad52 strain and nearly significantly in the rad52 hdf1 strain. Survival was lower in all magnetic-field-exposed strains compared with controls, with the overall difference close to statistical significance. Cell cycle progression and DNA patterns were unchanged in all strains after exposure.

Effects of homogeneous and inhomogeneous static magnetic fields combined with gamma radiation on DNA and DNA repair

Unknown authors · 2010

This study investigated whether static magnetic fields (SMFs) influence DNA or the repair of radiation-damaged DNA in leukocytes. Samples were exposed to inhomogeneous SMFs with lateral magnetic flux density gradients of 47.7, 1.2, or 0.3 T/m, or to a homogeneous SMF of 159.2 ± 13.4 mT, for time periods ranging from 0.5 minutes to 24 hours. DNA damage was measured using the single-cell gel electrophoresis technique, also called the comet assay. When SMF exposure preceded gamma irradiation, no statistically significant difference in DNA damage was found compared to the 4 Gy gamma-irradiated group.

Static magnetic fields enhanced the potency of cisplatin on k562 cells

Unknown authors · 2010

K562 cells were exposed to 8.8 mT static magnetic fields with or without cisplatin. The magnetic fields enhanced cisplatin's killing effect, reducing the efficient killing concentration from 20 to 10 microg/mL. Cells treated with both magnetic fields and cisplatin showed S-phase cell cycle arrest. DNA became thicker with magnetic field exposure alone, while DNA breakage increased more with the combined treatment than with cisplatin alone.

Effects of differently polarized microwave radiation on the microscopic structure of the nuclei in human fibroblasts

Shckorbatov YG et al. · 2010

Researchers exposed human fibroblasts to 36.65 GHz microwave radiation at power densities of 1, 10, 30, and 100 µW/cm(2) for 10 seconds, using linear, left-handed, and right-handed elliptically polarized waves. Heterochromatin granule quantity was assessed at 600× magnification after staining with orcein solution. Irradiation at 1 µW/cm(2) produced no effect, while 10 and 100 µW/cm(2) increased heterochromatin granule quantity, with more intense irradiation causing more chromatin condensation. Right-handed elliptically polarized radiation showed greater biological activity than left-handed polarized radiation.

Effects of extremely low-frequency electromagnetic fields on Helicobacter pylori biofilm

Unknown authors · 2010

Researchers exposed H. pylori ATCC 43629 cultures and 2-day-old biofilm to ELF-EMF at 50 Hz and 1 mT for 2 days. Exposed cultures and sham-exposed controls were studied for cell viability, morphology, biofilm mass, genotypic profile, and luxS and amiA gene expression. During biofilm formation, ELF-EMF exposure significantly increased spiral forms to 58.41% versus 33.14% in controls and reduced biofilm cell mass. On mature biofilm, no significant differences were found compared to controls, though biofilm mass was also reduced. No changes in DNA patterns were recorded, but amiA gene expression was modulated.

Effects of extremely low-frequency electromagnetic field on fertility and heights of epithelial cells in pre-implantation stage endometrium and fallopian tube in mice

Unknown authors · 2010

Researchers exposed female NMRI mice to 50 Hz, 0.5 mT ELF-EMF for 4 hours per day, 6 days a week for 2 weeks. The exposed mice had significantly fewer flushed blastocysts than controls. Fallopian tube epithelial cell height increased significantly in exposed mice, while endometrial epithelial cell height showed an insignificant increase.

Pulsed electromagnetic fields accelerate wound healing in the skin of diabetic rats

Unknown authors · 2010

Researchers induced diabetes in male Wistar rats with streptozocin and created a full-thickness dermal incision. The wound was exposed to ELF PEMF at 20 Hz, 4 ms, 8 mT for one hour per day. Healing rate was significantly greater in diabetic rats receiving PEMF compared to diabetic controls. Wound tensile strength was also significantly greater in PEMF-treated animals. Even non-diabetic control rats receiving PEMF healed faster than sham-exposed controls.

Extremely low frequency magnetic field and the hatching rate of Fasciola hepatica eggs, the fecundity and survival of liver fluke-infected snail, Lymnaea truncatula

Unknown authors · 2010

Researchers exposed Fasciola hepatica eggs to a 50 Hz, 2 mT extremely low frequency magnetic field for 10 days. The exposed eggs hatched faster than non-exposed control eggs. Snails infected with miracidia from exposed eggs laid significantly fewer cocoons by day 14 and showed significantly higher mortality by day 42 compared to control snails.

The effect of long-term extremely low-frequency magnetic field on geometric and biomechanical properties of rats' bone

Unknown authors · 2010

Researchers used 30 male Sprague-Dawley rats divided into three groups of ten: two groups exposed to 100 microT or 500 microT ELF-MF for 10 months, 2 hours per day, and a sham-exposed control group. Rats exposed to 100 microT showed a significantly smaller femoral cross-sectional area than both sham and 500 microT groups, and cortical thickness was significantly reduced in both exposed groups compared with sham. Maximum load increased in both 100 microT and 500 microT groups relative to sham, while femur length, displacement, stiffness, energy absorption capacity, elastic modulus, and toughness did not differ significantly.

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