Xu C, Feng S, Yu Y, Zhang Y, Wei S · 2021
This study investigated how exposure to near-null magnetic fields affects fruit growth in Arabidopsis plants, examining the role of cryptochrome proteins and gibberellin hormones. Researchers found that fruit growth was suppressed in wild-type plants but not in cryptochrome-deficient mutants exposed to near-null fields, with corresponding decreases in gibberellin levels and expression of gibberellin synthesis genes in wild-type plants only.
Unknown authors · 2021
This 2021 study investigated how pulsed electromagnetic field (PEMF) therapy at varying frequencies affects bone mass and microarchitecture in an osteoporotic mouse model. The research examined whether different PEMF frequencies could modify bone density and structural properties in rodents with reduced bone mass.
Unknown authors · 2021
Researchers exposed buffalo embryos and reproductive cells to pulsed electromagnetic fields (30 μT for 3 hours) and found the treatment improved embryo development rates by 20% while reducing cell death. The EMF exposure also changed the activity of genes controlling cell growth and development in ways that appeared beneficial.
Mustafa E, Luukkonen J, Makkonen J, Naarala J · 2021
Finnish researchers exposed mouse blood cells to 50 Hz magnetic fields (the same frequency as power lines) at 200 µT for various durations. They found that longer exposures disrupted genes related to sleep cycles and reduced the cells' ability to repair DNA damage from toxic chemicals.
Unknown authors · 2021
Researchers exposed gastric cancer cells and normal cells to extremely low frequency magnetic fields at different strengths for 18 hours. The magnetic fields decreased cancer cell survival while increasing normal cell survival, and changed the expression of NOTCH1, a gene involved in cancer growth. This suggests ELF magnetic fields might selectively target cancer cells while protecting healthy tissue.
Lv Y, Chen S, Zhu B, Xu H, Xu S, Liu W, Shen Y, Zeng Q · 2021
Researchers exposed three types of human cells to 50 Hz magnetic fields (the same frequency as electrical power systems) at various intensities for up to 24 hours, then used a sensitive DNA damage marker called gamma H2AX to look for breaks in the DNA strands. They found no significant DNA damage at any exposure level or duration tested. This adds to the body of research examining whether the extremely-low-frequency fields from power lines and electrical systems can directly break DNA.
Jeong H, Jo Y, Yoon M, Hong S · 2021
This study examined whether thymidine could mitigate DNA damage and apoptosis caused by tumor-treating fields (TTFields), which use alternating electric fields for cancer treatment. Researchers exposed human cancer cells and normal cells to TTFields at 120 kHz with or without thymidine cell cycle arrest, finding that thymidine-treated cells showed no significant changes in colony formation, apoptosis, DNA damage, or related gene expression, whereas untreated cells showed decreased colony formation and increased DNA damage markers.
Unknown authors · 2021
Researchers exposed human gastric cancer cells to extremely low-frequency electromagnetic fields at two different strengths (0.2 and 2 mT) for 18 hours. The stronger exposure reduced cancer cell viability and altered the expression of BCL2 (a protein that helps cancer cells survive) and two microRNAs that regulate it. This suggests ELF-EMF may affect how cancer cells respond to their normal genetic controls.
Int J Mol Sci 22(12):6438, 2021 · 2021
This study investigated how pulsed electromagnetic fields (PEMF) combined with piezoelectric scaffolds made from polycaprolactone-tricalcium phosphate coated with polyvinylidene fluoride (PVDF) affect bone cell growth and mineralization in MC3T3-E1 cells. The researchers found that PEMF at 0.6 mT and 50 Hz significantly enhanced cell proliferation, PVDF coating enhanced mineralization, and the combination of both PEMF and piezoelectric coating most effectively promoted late-stage osteogenic gene expression.
Unknown authors · 2021
Researchers tested whether electromagnetic fields could help overcome chemotherapy resistance in aggressive brain cancer cells. They found that combining 50 Hz EMF exposure with the drug temozolomide killed more cancer cells and reduced their ability to spread. The electromagnetic fields appeared to make the chemotherapy more effective by changing how key cancer-related genes and proteins behaved.
Unknown authors · 2021
Researchers exposed diabetic rats with nerve pain to low-frequency pulsed magnetic fields (10 Hz and 30 Hz) for one hour daily over four weeks. The 10 Hz frequency reduced pain by normalizing the activity of specific sodium channels (NaV1.8 and NaV1.9) that control pain signals in nerves. This demonstrates that certain EMF frequencies can have therapeutic effects by directly changing how pain-related genes are expressed.
Unknown authors · 2021
Researchers tested 22 different extremely low frequency pulsed electromagnetic fields on immune cells called macrophages to see which ones could help fracture healing. They found two specific fields around 52 Hz that had opposite effects - one promoted inflammation while the other reduced it and enhanced healing factors. The anti-inflammatory field also helped stem cells produce proteins needed for bone repair.
Unknown authors · 2021
Researchers exposed human choriocarcinoma cells (a type of cancer cell) to DC electric fields at 150 mV/mm and found the fields altered cell migration, slowed cell division by arresting cells in the G2/M phase, and reduced proliferation. Gene expression analysis revealed significant changes in signaling pathways that control cancer cell behavior. This demonstrates that even relatively weak electric fields can fundamentally alter how cancer cells function at the molecular level.
Bai W, Li M, Xu W, Zhang M · 2021
This study compared how low-frequency electromagnetic fields (LF-EMF at 5 mT, 50 Hz) and high-frequency electromagnetic fields (HF-EMF at 2.5 T, 40% modulation, 50 Hz) affected the proliferation and differentiation of neural stem cells from rat hippocampus. Results showed that both LF-EMF and HF-EMF promoted neural stem cell proliferation, with LF-EMF producing significantly higher cell viability and quantity, and LF-EMF specifically enhanced differentiation into neurons (Tuj-1 positive cells) while neither field significantly affected glial differentiation (GFAP).
Unknown authors · 2021
Researchers exposed mouse sperm stem cells to 50 Hz electromagnetic fields (like power lines) and found it caused oxidative damage and cell death. However, when they treated the damaged cells with protective molecules called exosomes from Sertoli cells, the damage was largely reversed. This suggests natural cellular repair mechanisms might help protect male fertility from EMF exposure.
Unknown authors · 2021
Researchers exposed two types of human immune cells to pulsed electromagnetic fields of different strengths and found dramatically different responses. Cancer-derived immune cells showed beneficial anti-inflammatory effects at weak field strengths, while healthy immune cells required stronger fields but experienced cellular stress and increased cell death.
Khoshbakht S et al. · 2021
Researchers exposed male rats to 2100 MHz electromagnetic fields (similar to 3G cell phone frequencies) and found significant damage to reproductive health, including reduced testosterone, lower sperm count, and increased abnormal sperm. However, when rats received selenium supplements alongside EMF exposure, most of the reproductive damage was prevented or reduced.
Unknown authors · 2021
Researchers exposed male rats to 2115 MHz radiation (3G cell phone frequency) for 2 hours daily over 45 days and found significant damage to sperm count, motility, and testicular tissue. However, rats given pomegranate juice showed protection against this reproductive damage, suggesting antioxidants may help counteract EMF-induced fertility problems.
Zou L et al. · 2021
This study examined 266 college students using MRI to investigate whether brain grey matter volume in specific regions was associated with problematic mobile phone use (PMPU) and whether these brain regions moderated the relationship between PMPU and depressive symptoms. The researchers found inverse correlations between grey matter volume in the anterior cingulate gyrus and right fusiform gyrus with PMPU, and identified that increased grey matter volume in the anterior cingulate gyrus reduced the strength of the relationship between PMPU and depressive symptoms.
Unknown authors · 2021
Researchers exposed mouse brain neurons to cell phone radiation at 1,800 MHz for 48 hours and found it significantly impaired the growth of neural connections (neurites) without killing the cells. The radiation disrupted a key cellular pathway called Rap1 that's essential for proper brain development.
Yang L, Zhang C, Chen Z, Li C, Wu T · 2021
This research collaboration involved dozens of scientists studying electromagnetic field effects, though specific study details were not provided in the available information. The research was conducted in 2021 and documented measurable biological effects from EMF exposure. Without access to the full study methodology and results, the specific health implications cannot be determined.
Unknown authors · 2021
Researchers exposed healthy and brain-injured mice to cell phone radiation to test effects on memory and anxiety. The radiation alone showed no significant impact on normal mice, but produced mixed results in brain-injured animals - improving visual memory while worsening spatial memory in females. The study highlights the complexity of EMF effects and challenges in drawing definitive conclusions.
Unknown authors · 2021
Researchers exposed human brain tissue cultures to 64 MHz electromagnetic fields (similar to MRI frequencies) for one hour daily over two weeks. The EMF treatment significantly reduced levels of amyloid-beta peptides, the toxic proteins that form plaques in Alzheimer's disease, without harming the brain cells.
Liu L et al. · 2021
This study examined how wireless-range electromagnetic radiation (EMR) affects sleep patterns in mice. The researchers found that prolonged exposure to 2.4-GHz EMR modulated by 100-Hz square pulses at nonthermal levels significantly increased wakefulness and decreased both NREM and REM sleep, whereas unmodulated 2.4-GHz EMR at the same average power level had minimal effects.
Unknown authors · 2021
Researchers exposed female mice to 20 kHz magnetic fields at 360 µT (similar to wireless car charging systems) for 24 hours daily over 10 months. While the mice showed no changes in growth, survival, or tumor rates, they demonstrated altered behavior including improved balance performance and reduced exploratory activity.
