Marconi A et al. · 2015
Researchers exposed 18 volunteers to GSM mobile phone signals for 30 minutes and measured various oxidative stress markers in their blood and breath. While they found no harmful effects, they discovered that phone exposure changed how these biological markers were organized in the body, creating a more ordered pattern. This suggests that mobile phone radiation does interact with biological systems, even if the health consequences aren't yet clear.
Malkemper EP et al. · 2015
Researchers tested whether wood mice can sense magnetic fields by observing where they built nests in circular arenas. They found that mice normally oriented their nests north-south using Earth's magnetic field, but when exposed to weak radio frequency fields (0.9-5 MHz), the mice switched to building nests east-west instead. This demonstrates that low-level RF exposure can disrupt an animal's natural magnetic navigation system.
Liu YX et al. · 2015
Researchers exposed human brain tumor cells to 3G mobile phone radiation (1950-MHz) for up to 48 hours at high power levels (SAR of 5 W/kg) to see if the radiation would promote tumor growth or change cell behavior. They found no significant effects on cell growth, gene expression, or tumor formation ability. This suggests that 3G signals at these exposure levels don't act as tumor-promoting agents in already-existing brain cancer cells.
Kumar G, McIntosh RL, Anderson V, McKenzie RJ, Wood AW. · 2015
Researchers exposed rat bone marrow to mobile phone radiation at 900 and 1800 MHz frequencies to test for genetic damage and effects on blood cell production. They tested both continuous and pulsed signals at power levels ranging from 2 to 12.4 watts per kilogram. The study found no significant changes in cell growth or DNA damage in the bone marrow cells after exposure.
Gurbuz N, Sirav B, Kuzay D, Ozer C, Seyhan N. · 2015
Researchers exposed diabetic rats to cell phone radiation (2100 MHz) to see if it caused genetic damage in bladder cells by looking for micronuclei - small fragments of broken DNA that indicate cellular damage. They found no increase in genetic damage in either healthy or diabetic rats exposed to the radiation compared to unexposed animals. The study suggests that this level of RF radiation may not cause DNA damage in bladder cells, even in animals with diabetes who might be more vulnerable.
Court-Kowalski S et al. · 2015
Researchers exposed mice to cell phone radiation (900 MHz) at high levels (4 W/kg SAR) for five days per week over two full years, then examined their brains for signs of astrocyte activation - a cellular response that indicates brain injury or stress. They found no detectable changes in these protective brain cells compared to unexposed mice, suggesting this level of radiofrequency exposure did not trigger measurable brain inflammation or damage.
Kumar G, McIntosh RL, Anderson V, McKenzie RJ, Wood AW. · 2015
Researchers exposed rat bone marrow to cell phone-type radiation at 900 MHz and 1800 MHz frequencies to test for DNA damage and changes in blood cell production. They found no significant effects on genetic damage or cell growth at radiation levels of 2-2.5 watts per kilogram, which are similar to current safety limits. This study suggests that short-term exposure to these specific radiation levels may not cause immediate DNA damage in blood-forming cells.
Percherancier Y et al. · 2015
Researchers exposed mouse cells to 50 Hz magnetic fields for 24 hours to study whether these fields affect gap junctions (tiny channels that allow cells to communicate with each other). They found no impact on cell communication at the magnetic field strengths tested (0.4 and 1 mT), contradicting some previous studies that suggested power frequency fields could disrupt this cellular function.
Silva V et al. · 2015
Israeli researchers exposed human thyroid cells to cell phone-like radiofrequency radiation to test whether it could trigger cancer-related changes. They found no effects on cell proliferation, DNA damage markers, or stress indicators that typically signal cellular harm. This suggests that under their specific test conditions, cell phone radiation did not promote thyroid cancer development in isolated human cells.
Nazıroğlu M, Özkan FF, Hapil SR, Ghazizadeh V, Çiğ B. · 2015
Researchers exposed brain cells from epileptic rats to 900 MHz cell phone radiation for one hour to see if it would worsen brain damage. While epilepsy itself caused significant cellular damage including cell death and calcium influx, the cell phone radiation did not add any additional harmful effects. This suggests that 900 MHz EMF exposure may not exacerbate existing brain conditions like epilepsy.
Messiha HL, Wongnate T, Chaiyen P, Jones AR, Scrutton NS · 2015
Researchers investigated whether magnetic fields could affect important cellular enzymes called flavoenzymes by disrupting chemical reactions that involve unpaired electrons (radical pairs). Despite testing multiple enzyme systems under controlled laboratory conditions, they found no evidence that magnetic field exposure altered the speed or efficiency of these crucial cellular reactions. This suggests that the radical pair mechanism - a proposed biological pathway for how magnetic fields might affect living cells - may not operate in these fundamental enzymatic processes.
Xiong DF, Liu JW, Li ZX, Zeng GC, Li HL · 2015
Researchers studied 310 electrical workers who regularly inspect power transformers and distribution lines to see if their exposure to extremely low frequency electromagnetic fields caused oxidative stress (cellular damage from harmful molecules). They measured multiple markers of cellular damage and DNA damage in blood samples, comparing the workers to 300 office staff with minimal EMF exposure. The study found no significant differences between the two groups in any of the damage markers tested.
Kesari KK, Luukkonen J, Juutilainen J, Naarala J · 2015
Researchers exposed human brain cells to 50 Hz magnetic fields (the type from power lines) for 24 hours and tracked genetic damage for up to 45 days afterward. They found that the magnetic field exposure caused DNA damage that persisted for at least 30 days, and this damage wasn't prevented by antioxidants, suggesting the fields directly affect cellular genetics rather than just causing oxidative stress.
Jin H, Yoon HE, Lee JS, Kim JK, Myung SH, Lee YS. · 2015
Researchers exposed human lung cells to 60 Hz magnetic fields (1-2 mT) alone and combined with radiation or hydrogen peroxide to test whether EMFs might make cells more vulnerable to genetic damage. The magnetic fields alone caused no genetic damage, and they didn't make the cells more susceptible to damage when combined with other stressors. This suggests that power frequency magnetic fields at these levels don't compromise cellular genetic stability.
Nazıroğlu M, Ozkan FF, Hapil SR, Ghazizadeh V, Ciğ B · 2015
Researchers exposed brain cells from epileptic rats to 900 MHz mobile phone radiation for one hour to see if it worsened seizure-related brain damage. The epilepsy itself caused significant cell death, oxidative stress, and calcium influx in the hippocampus (a brain region crucial for memory), but the mobile phone radiation didn't add any additional harmful effects. This suggests that in already-damaged brain tissue, 900 MHz EMF exposure may not worsen the cellular damage beyond what the disease itself causes.
Sırav B, Seyhan N · 2015
Researchers exposed male and female rats to cell phone radiation at 900MHz and 1800MHz frequencies for 20 minutes, then measured whether their blood-brain barrier (the protective shield around the brain) became more permeable. They found that both frequencies increased brain permeability in males, with 1800MHz having a stronger effect, while only 900MHz affected females. This suggests that even brief cell phone exposure can compromise the brain's natural protective barrier.
Sieroń-Stołtny K et al. · 2015
Researchers exposed rats to mobile phone radiation (900 MHz frequency) for 28 days and examined effects on their bone health. The radiation didn't change bone size but significantly weakened bone strength, reduced calcium content, and disrupted the normal processes that build and break down bone tissue. This suggests that cell phone radiation may interfere with bone health even when bones appear normal on the outside.
Shokri S, Soltani A, Kazemi M, Sardari D, Mofrad FB. · 2015
Researchers exposed male rats to Wi-Fi radiation (2.45 GHz) for either 1 hour or 7 hours daily over 2 months to study effects on fertility. Both exposure groups showed decreased sperm quality, increased cell death in the testes, and reduced seminal vesicle weight compared to unexposed rats, with longer exposures causing more severe damage. This suggests that common Wi-Fi frequencies may harm male reproductive health in a dose-dependent manner.
Shivashankara AR et al. · 2015
Researchers examined saliva samples from college students who were light versus heavy cell phone users to look for signs of cellular stress. Heavy users showed significantly higher levels of stress enzymes (amylase and LDH) and oxidative damage markers (MDA) in their saliva compared to light users. This suggests that frequent cell phone use may be causing measurable cellular damage that can be detected through simple saliva tests.
Sehitoglu I et al. · 2015
Researchers exposed pregnant rats to 900 MHz cell phone radiation for 24 hours daily during pregnancy, then examined the reproductive health of their male offspring at 60 days old. The exposed rats had 13% lower testosterone levels, smaller testes, and increased cell death markers compared to unexposed controls. This suggests that cell phone radiation exposure during pregnancy may harm the developing reproductive system of male offspring.
Şahin A et al. · 2015
Researchers exposed young rats (equivalent to pre-adolescent humans) to 900-MHz cell phone radiation for one hour daily over 30 days, then examined their brain tissue. They found significant loss of pyramidal neurons in the hippocampus (a brain region crucial for memory and learning) and observed damaged cells with abnormal appearance. This suggests that cell phone radiation exposure during development may harm critical brain cells needed for cognitive function.
Saghiri MA, Orangi J, Asatourian A, Mehriar P, Sheibani N · 2015
Researchers studied 50 people with metal braces to see if cell phone use affected how much nickel (a metal in braces) was released into their saliva. After a week of no phone use, participants used their phones normally for another week. The study found that cell phone use significantly increased nickel levels in saliva, with longer phone use causing more nickel release from the orthodontic appliances.
Olgar Y et al. · 2015
Researchers exposed rats to 2.1 GHz radiofrequency radiation (similar to cell phone frequencies) for 2 hours daily over 10 weeks and studied heart muscle cells. While basic heart function remained normal, the cells showed reduced responsiveness to stress hormones like adrenaline, and nitric oxide levels increased in heart tissue. This suggests that chronic EMF exposure may impair the heart's ability to respond properly during physical or emotional stress.
Odacı E, Özyılmaz C · 2015
Turkish researchers exposed male rats to cell phone-frequency radiation (900 MHz) for one hour daily over 30 days and examined the effects on testicular tissue. They found significant structural damage including tissue swelling, reduced sperm-producing tube size, increased cell death, and disrupted antioxidant systems. The findings suggest that even moderate daily exposure to cell phone radiation may harm male reproductive organs.
Nazıroğlu M, Özkan FF, Hapil SR, Ghazizadeh V, Çiğ B · 2015
Turkish researchers exposed brain cells from epileptic rats to 900 MHz mobile phone radiation for one hour to see if it would worsen brain damage. They found that epilepsy itself caused significant cell death and oxidative stress in the hippocampus (the brain's memory center), but adding mobile phone radiation didn't make these effects any worse. This suggests that in already-damaged brain tissue, short-term mobile phone exposure may not add additional harm beyond what the underlying condition already causes.
