Browse 8,700 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.
Showing all 8,700 studies
Löscher W, and G Käs. 1998 · 1998
Insufficient information. Based on the title alone, this appears to be a review examining behavioral disorders observed in cattle near electrical transmission stations, but no abstract was provided to confirm the study's findings or methodology.
Owen RD · 1998
Researchers at the FDA exposed HL60 cancer cells to 60 Hz magnetic fields at 6 microTesla (similar to power line levels) to test whether this EMF exposure increases MYC gene expression. Despite using methods identical to earlier studies that claimed positive effects, they found no increase in MYC expression. This failed replication raises questions about the reproducibility of some EMF biological effects.
Miyakoshi J , Mori Y, Yamagishi N, Yagi K, Takebe H · 1998
This study investigated whether wild-type p53 gene expression could suppress mutations induced by exposure to high-density magnetic fields (400 mT at 50 Hz) in human osteosarcoma cells. The researchers found that cells lacking functional p53 showed increased mutations when exposed to the magnetic field, but when wild-type p53 was introduced, the mutation rate was suppressed to levels similar to unexposed controls.
Unknown authors · 1998
Insufficient information provided. The study record contains only publication details (Journal of Cellular Biochemistry, volume 69, issue 2, pages 181-188, 1998) and indicates an in vitro study, but no title, authors, abstract, or study details are available to determine if this is an EMF health effects study or to summarize its findings.
Jahreis GP, Johnson PG, Zhao YL, Hui SW · 1998
Researchers tested whether 60-Hz magnetic fields at 0.1 mT could trigger cancer-related gene activity in human immune cells, attempting to replicate previous findings. They found no changes in oncogene transcription rates or levels after exposures ranging from 15 minutes to 2 hours. This study failed to reproduce earlier claims that power-line frequency magnetic fields activate cancer genes.
Balcer-Kubiczek EK et al. · 1998
Researchers exposed HL60 cells (a type of human blood cell) to either X-rays or 60 Hz magnetic fields and examined changes in gene expression. While X-ray exposure altered the activity of 18 genes related to cell growth and stress responses, the 60 Hz magnetic fields produced no detectable changes in gene expression. This suggests that power-line frequency magnetic fields may not trigger the same cellular stress responses as ionizing radiation.
Nakamura et al. · 1998
This study investigated whether opioid systems mediate microwave-induced reduction in natural killer cell activity (NKCA) in pregnant rats exposed to 2450 MHz microwaves at 2 mW/cm² for 90 minutes. The researchers found that microwave exposure increased beta-endorphin levels in blood and pituitary tissue while reducing splenic NKCA in pregnant rats, and that blocking opioid receptors with naloxone reversed this immunosuppressive effect.
Unknown authors · 1998
Insufficient information provided. Only the journal citation (Radiat Res 149(6):637-645, 1998), organism type (review), and that it is a review article are available. The specific title, authors, abstract, and study findings were not provided, making it impossible to generate an accurate summary of what was examined or found.
Dibirdik I et al · 1998
Researchers exposed lymphoma B cells to low-energy electromagnetic fields and discovered they trigger a complex cellular signaling cascade involving multiple protein kinases. The EMF exposure activated specific enzymes (LYN, SYK, and PLC-gamma2) that control important cellular processes like calcium signaling and membrane function. This demonstrates that even low-level EMF can directly influence fundamental cellular machinery at the molecular level.
Cohen B et al · 1998
Researchers tested how electric charges on tiny particles affect their deposition in human lung airways using hollow casts. They found that charged particles deposit 3-6 times more efficiently than uncharged particles, with 20-nm charged particles showing 5.3 times greater deposition. This matters because most particles we breathe carry electric charges, making current lung dose models potentially inaccurate.
Kristupaitis D et al · 1998
Scientists exposed B-cell lymphoma cells to low-energy electromagnetic fields and discovered the radiation activates a specific enzyme called Bruton's tyrosine kinase (BTK). This enzyme then triggers a cascade of cellular changes, including increased activity of phospholipase C-γ2, which affects how cells process important signaling molecules. When researchers removed BTK from the cells, electromagnetic field exposure no longer caused these cellular changes.
Tuinstra R et al · 1998
Researchers exposed human blood cells to 60 Hz magnetic fields (the same frequency as power lines) and found the fields enhanced the activity of protein kinase C, a key enzyme involved in cell signaling. The magnetic fields didn't create new biological effects but amplified existing cellular processes that were already activated.
Lai H et al · 1998
University of Washington researchers exposed rats to 1 mT, 60 Hz magnetic fields (power line frequency) for one hour before each water maze training session. While the rats learned to find the platform normally, they swam slower and showed impaired spatial memory during testing, suggesting the magnetic field changed how their brains processed location information.
Burch JB et al · 1998
Researchers measured magnetic field exposure and melatonin levels in electric utility workers over three consecutive days. They found that temporally stable 60 Hz magnetic fields (the kind from power lines) were associated with reduced nighttime melatonin production. This matters because melatonin is crucial for sleep, immune function, and protecting against cancer.
Miller SC, Furniss MJ · 1998
Researchers attempted to replicate earlier claims that 60 Hz magnetic fields (the frequency of power lines) activate immune cell signaling in laboratory B cells. Using rigorous blinded testing methods, they found no evidence that 1-gauss power line frequency fields affect these cellular processes. This study challenges previous research suggesting power line EMF can trigger biological responses in immune cells.
Lai H et al · 1998
Researchers exposed rats to 60 Hz magnetic fields (the same frequency as household power lines) for one hour before maze training sessions. While the rats could still learn to find a hidden platform, they swam slower and showed impaired spatial memory when tested later. This suggests power frequency magnetic fields may affect brain function and memory formation.
Michaelis J et al · 1998
German researchers studied 176 children with leukemia and 414 healthy children, measuring magnetic field exposure in their homes over 24 hours. Children exposed to magnetic fields of 0.2 microTesla or higher showed 2.3 times greater odds of developing acute leukemia. This adds to growing evidence linking residential power line EMF exposure to childhood cancer risk.
Cohen B et al · 1998
Researchers tested how electric charge affects tiny particle deposition in human lung airways using cast models. They found that charged particles (which most ambient particles are) deposit 2-6 times more efficiently than neutral particles. This discovery means current models underestimate how much harmful material actually reaches deep lung tissue.
Zecca L et al · 1998
Researchers exposed 256 male rats to 50 Hz magnetic fields at 5 microTesla for 22 hours daily over 32 weeks, covering about 70% of their lifespan. The study found no significant differences in blood chemistry, organ structure, or brain neurotransmitters between exposed and control animals. This suggests that prolonged exposure to power-line frequency magnetic fields at this intensity may not cause detectable biological changes in rats.
Tuinstra R et al · 1998
Researchers exposed human blood cells to 60 Hz magnetic fields (the same frequency as power lines) and found that while the fields alone didn't activate protein kinase C, they amplified the effects when cells were already stimulated by chemicals. This suggests magnetic fields may enhance biological processes that are already active rather than starting new ones.
Moulder JE · 1998
This 1998 comprehensive review analyzed approximately 100 laboratory studies examining whether power-frequency electromagnetic fields (from power lines and electrical systems) can cause cancer. The analysis found no replicated evidence that these fields have cancer-causing potential, concluding that a causal link between power-frequency EMF and cancer is unlikely.
Lai H et al · 1998
Researchers exposed rats to 60 Hz magnetic fields (the same frequency as power lines) for one hour before water maze training sessions. While the rats could still learn to find a hidden platform, they swam slower and showed impaired spatial memory when tested later. This suggests power line frequency magnetic fields may affect brain function and memory formation.
Lagroye I, Poncy JL · 1998
Researchers exposed rat tracheal cells to 50 Hz magnetic fields (100 microTesla) and found they triggered the same cellular stress proteins as ionizing radiation. The magnetic field exposure activated c-jun and c-fos oncoproteins, which are markers of cellular damage and stress response.
Burch JB et al · 1998
This 1998 study examined how 60 Hz magnetic fields from power lines affect melatonin production in electric utility workers. Researchers found that workers exposed to temporally stable magnetic fields - those that remain relatively constant over time - had reduced levels of a melatonin metabolite in their urine. This suggests that steady magnetic field exposure may disrupt the body's natural sleep hormone production.
Feychting M et al · 1998
Swedish researchers studied 699 women and 9 men with breast cancer who lived within 300 meters of high-voltage power lines between 1960-1985. They found no overall increased breast cancer risk from magnetic field exposure, but discovered a striking 7.4-fold increased risk among younger women with estrogen-positive breast cancer. This suggests magnetic fields may interact with hormonal factors in specific breast cancer subtypes.