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Combined effects of constant temperature and radio frequency exposure on Aedes mosquito development

Research RF Safe Research Library Jan 1, 2025

This laboratory study tested combined effects of constant temperature and RF exposure on development of Aedes aegypti and Aedes albopictus from hatching to adult emergence. Temperature was reported as the primary determinant of developmental timing, with optimal development around 302C. RF exposure (900 MHz and 18 GHz) was described as a secondary factor that could accelerate or prolong development depending on temperature, with synergistic shortening at 250C and prolongation under suboptimal conditions.

Assessment of Electromagnetic Exposure to a Child and a Pregnant Woman Inside an Elevator in Mobile Frequencies

Research RF Safe Research Library Jan 1, 2025

This study uses anatomically detailed computational models of a five-year-old girl, a pregnant woman in the third trimester, and a fetus to simulate mobile phone RF exposure inside an elevator cabin. Simulations at 1000 MHz and 1800 MHz across 48 configurations evaluated SAR10g, whole-body SAR, and maximum temperature. The abstract reports that configuration (positioning and phone orientation) can substantially change absorption and temperature metrics and calls for broader scenario testing to inform safety guidance for vulnerable populations.

13.56 MHz RFID Module - From Application to Process Modelling and Effects on Human Health

Research RF Safe Research Library Jan 1, 2025

This paper presents an application and numerical process modelling of a 13.56 MHz RFID module, including how nearby tags/cards and their positioning affect antenna characteristics. It also considers RFID operation near human tissues and discusses potential health impacts from prolonged EMF exposure at 13.56 MHz. The authors emphasize the importance of evaluating long-term exposure risks and call for additional scientific attention.

Trends in Malignant and Benign Brain Tumor Incidence and Mobile Phone Use in the U.S. (2000-2021): A SEER-Based Study

Research RF Safe Research Library Jan 1, 2025

This SEER-based ecological study examined U.S. trends (2000–2021) in malignant and benign brain tumor incidence and compared them with national mobile phone subscription trends. Malignant brain tumor incidence in adolescents and adults declined slightly, while benign brain tumor incidence increased over time; temporal lobe tumors and benign acoustic neuromas showed little change. The authors interpret these patterns as not supporting an association between mobile phone use and increased brain cancer risk, while recommending continued surveillance given rising benign tumor incidence and potential latency.

Characterization of the Core Temperature Response of Free-Moving Rats to 1.95 GHz Electromagnetic Fields

Research RF Safe Research Library Jan 1, 2025

This animal study measured core body temperature in free-moving male and female Sprague Dawley rats during and after 3-hour exposure to 1.95 GHz RF-EMF at multiple whole-body average SAR levels. A measurable thermal response was reported at 4 W/kg, while lower SAR conditions showed smaller or no significant temperature increases. The authors note that temperature dropped quickly after exposure ended, implying post-exposure measurements may underestimate peak heating.

Effects of non-ionizing radiation on the thyroid gland in rats

Research RF Safe Research Library Jan 1, 2025

This animal study exposed Sprague-Dawley rats (including pregnant females and offspring) to 2.45 GHz Wi-Fi or mobile jammer radiation for 2 hours daily over two weeks and assessed thyroid hormones and thyroid histology. The abstract reports significant changes in T4 in exposed adult males and significant differences in T3 among male offspring exposed to jammer radiation. Histopathology reportedly showed disrupted thyroid follicular structure in exposed rats. The authors conclude these findings support a potential link between non-ionizing radiation exposure and altered thyroid endocrine and histological parameters.

Repeated Head Exposures to a 5G-3.5 GHz Signal Do Not Alter Behavior but Modify Intracortical Gene Expression in Adult Male Mice

Research RF Safe Research Library Jan 1, 2025

This animal study examined repeated asymmetrical head exposure to a 5G-modulated 3.5 GHz signal in adult male mice for six weeks. It reports no significant changes in locomotion, anxiety, or object-based memory performance under the tested conditions. However, it found statistically significant but limited cortical gene expression changes (<1% of expressed genes), including enrichment for glutamatergic synapse-related genes and lateralized differences involving mitochondrial genome-encoded genes. The authors caution that potential health risks from these intracortical transcriptomic modifications should not be downplayed and note uncertainties about longer exposures and other populations.

5G Radiofrequency Exposure Reduces PRDM16 and C/EBP � mRNA Expression, Two Key Biomarkers for Brown Adipogenesis

Research RF Safe Research Library Jan 1, 2025

This animal study exposed juvenile and young adult Wistar rats to 5G (3.5 GHz) or 2G (900 MHz) radiofrequency fields (1.5 V/m) for 1–2 weeks and measured brown adipose tissue-related gene expression by RT-qPCR. The abstract reports significant downregulation of PRDM16 and C/EBP mRNA after 5G exposure, while UCP1-dependent thermogenesis markers were not significantly changed at the transcriptional level. The authors interpret these findings as a potential partial disruption of brown adipocyte differentiation and raise EMF safety concerns, while calling for further confirmatory research.

Experimental Study of Stress Reactions Induced by Low-Intensity Microwave Radiation

Research RF Safe Research Library Jan 1, 2024

This animal experiment examined hematopoietic and immune-related indicators in mice after repeated exposure to low-intensity microwave radiation. Exposure involved monochromatic pulsed fields in the 2.27–2.78 GHz range with average power flux density of 60 μW/cm² and doses of 0.086–0.86 J/g. The authors report cumulative biological effects consistent with a stress-like adaptive reaction, based on changes in bone marrow, spleen CFU-S measures, erythrocyte hemolytic resistance, and thymus metrics.

The effects of radiofrequency exposure on male fertility: A systematic review of human observational studies with dose-response meta-analysis (SR 3)

Research RF Safe Research Library Jan 1, 2024

This systematic review and dose-response meta-analysis synthesizes human observational studies on radiofrequency EMF exposure and male fertility outcomes. It reports evidence of an association between RF exposure and poorer sperm parameters, including reduced quality, motility, and viability. The authors frame the findings as consistent with potential reproductive health risks and call for continued risk assessment and guideline development.

Effects of radiofrequency field from 5G communication on fecal microbiome and metabolome profiles in mice

Research RF Safe Research Library Jan 1, 2024

This animal study exposed adult male C57BL/6 mice to a 4.9 GHz radiofrequency field for three weeks (1 hour/day) and compared them with a sham group. The abstract reports altered fecal microbiome composition with reduced diversity in the RF group, along with 258 significantly differentially abundant fecal metabolites. The authors conclude that 4.9 GHz RF exposure is associated with changes in gut microbiota and metabolic profiles and call for further EMF safety research.

Effect of Exposure to 900 MHz GSM Mobile Phone Radiofrequency Radiation on Estrogen Receptor Methylation Status in Colon Cells of Male Sprague Dawley Rats

Research RF Safe Research Library Mar 1, 2017

This animal study exposed male Sprague-Dawley rats to 900 MHz GSM mobile phone RF radiation for 4 hours and assessed ERα promoter methylation in colon tissue. The authors report altered ERα methylation patterns versus controls after RF exposure. They also report no radioadaptive response in ERα methylation following a subsequent 3 Gy Co-60 gamma challenge.

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