The International Collaborative Animal Study of Mobile Phone Radiofrequency Radiation Carcinogenicity and Genotoxicity: The Japanese Study
Research
PubMed: RF-EMF health
Jan 13, 2026
This PubMed-listed animal study reports results from the Japanese arm of an international Japan–Korea collaboration evaluating whether long-term mobile-phone-like RF-EMF exposure causes cancer or genetic damage in rats. Male Sprague Dawley rats were exposed to 900 MHz CDMA-modulated RF-EMF at a whole-body SAR of 4…
Measurement of Outdoor Micro-Environmental Radio Frequency Electromagnetic Field Exposure Levels in Daily Life Using a Portable Measurement Device
Research
RF Safe Research Library
Jan 1, 2026
This exposure assessment measured outdoor micro-environment RF-EMF levels in daily-life settings across urban and suburban locations in Japan using a portable device (50 MHz–6 GHz) with GPS. Reported exposure levels were higher in urban areas, with railway stations showing the highest levels among the environments…
The International Collaborative Animal Study of Mobile Phone Radiofrequency Radiation Carcinogenicity and Genotoxicity: The Japanese Study
Research
RF Safe Research Library
Jan 1, 2026
This international collaborative animal study (Japanese arm) evaluated carcinogenicity and genotoxicity in male Sprague Dawley rats exposed long-term to 900 MHz CDMA-modulated RF-EMFs at 4 W/kg whole-body SAR. The abstract reports no statistically significant increases in neoplastic or non-neoplastic lesions in major…
The International Collaborative Animal Study of The Carcinogenicity and Genotoxicity of Mobile Phone Radiofrequency Radiation: The Korean Study.
Research
RF Safe Research Library
Jan 1, 2026
This chronic animal bioassay assessed carcinogenicity and genotoxicity of CDMA-modulated 900 MHz RF exposure at a whole-body SAR of 4 W/kg using a shared Korea–Japan protocol. Male Sprague-Dawley rats were exposed starting on gestational day 5 with daily intermittent exposure for long durations, including a 2-year…
Two pathogenetic intronic variants in SPG4/SPAST and expansion of the clinical presentation.
Research
RF Safe Research Library
Jan 1, 2026
This study functionally characterizes two rare intronic SPAST (SPG4) variants found in two independent families (Brazilian and Japanese). The authors report that both variants affect splicing and provide segregation and clinical descriptions of affected individuals. They also report co-segregation of symptoms…
NTP Lite: The Japan-Korea Collaborative RF Exposure Toxicity Project [Health Matters]
Research
RF Safe Research Library
Jan 1, 2025
This magazine article reviews the Japan-Korea "NTP Lite" RF animal toxicity collaboration and its relationship to prior NTP (2018) and Ramazzini Institute reports of RF-associated tumors in male rats. It notes NTP Lite used a single whole-body SAR of 4 W/kg and completed a two-year exposure phase in 2022, but final…
Analysis of Actual Transmitted Power from Hundreds of 5G FR2 Radio Base Stations over One Month in Urban Areas in Japan
Research
RF Safe Research Library
Jan 1, 2025
This exposure/compliance assessment study collected 5- and 30-minute transmitted power data over one month from more than 400 5G FR2 beamforming base stations in urban Japan to evaluate the IEC 62232:2025 “actual maximum approach.” All measured transmitted powers were below configured maxima, with 30-minute averaged…
Brain Tumor and Mobile Phone Risk Among Young People: Analysis of Japanese People Using the MOBI-Kids International Case-Control Study
Research
RF Safe Research Library
Jan 1, 2025
This Japanese case-control study within the MOBI-Kids framework examined mobile phone use and brain tumor risk among people aged 10–29 years in the Kanto region. Using logistic regression adjusted for age and sex, it reports no increased brain tumor risk associated with mobile phone use, including analyses…
Magnetic Field Measurement of Various Types of Vehicles, Including Electric Vehicles
Research
RF Safe Research Library
Jan 1, 2025
This exposure assessment measured magnetic fields inside modern Japanese EVs, PHEVs, and ICEVs during actual driving using methods aligned with IEC 62764-1:2022. All measured magnetic flux density values were reported to be below ICNIRP public exposure reference levels. The study mapped in-cabin field sources and…
Comments on "Association of excessive mobile phone use during pregnancy with birth weight: an adjunct study in Kumamoto of Japan Environment and Children's Study".
Research
RF Safe Research Library
Jan 1, 2017
This publication is a comment on a study reporting an association between excessive mobile phone use during pregnancy and birth weight. The authors argue the referenced study has shortcomings and cannot address whether ordinary mobile phone use during pregnancy leads to low birth weight. They note their prior…
Visualizing radiofrequency lesions using delayed-enhancement magnetic resonance imaging in patients with atrial fibrillation: A modification of the method used by the University of Utah group.
Research
RF Safe Research Library
Jan 1, 2015
This feasibility study evaluated whether delayed-enhancement MRI (DE-MRI) using commercially available tools could visualize radiofrequency ablation lesions in Japanese patients with atrial fibrillation. Of 15 scans, 3 were uninterpretable due to low image quality, and lesions were visualized in 8 of the remaining 12…
Effect of lansoprazole on the epigastric symptoms of functional dyspepsia (ELF study): A multicentre, prospective, randomized, double-blind, placebo-controlled clinical trial.
Research
RF Safe Research Library
Jan 1, 2013
This multicentre, randomized, double-blind, placebo-controlled trial in Japan evaluated lansoprazole 15 mg daily for 4 weeks in functional dyspepsia diagnosed by Rome III criteria. Lansoprazole showed higher overall symptom relief than placebo at week 4 and improved epigastric pain and burning scores. Postprandial…