The effect of exposure of rats during prenatal period to radiation spreading from mobile phones on renal development.
Research
RF Safe Research Library
Jan 1, 2015
This animal study exposed pregnant Sprague-Dawley rats to a 900 MHz electromagnetic field during the first 20 days of pregnancy and assessed prenatal renal development. The exposed group showed reported histopathological kidney changes and increased caspase-3 staining suggestive of higher apoptosis compared with…
Assessment of auditory evoked potential in long-term mobile phone users.
Research
RF Safe Research Library
Jan 1, 2014
This cross-sectional study assessed auditory brainstem responses in 173 long-term mobile phone users aged about 17–39 years. The authors report significant differences in ABR wave and interpeak latencies across age groups, with prolonged average wave I–V latencies in the 20–29 year group. They interpret the latency…
Effect of mobile phone usage time on total antioxidant capacity of saliva and salivary immunoglobulin a.
Research
RF Safe Research Library
Jan 1, 2014
This cross-sectional study assessed whether daily mobile phone usage time is associated with salivary total antioxidant capacity in 105 volunteers. Participants were divided into three groups by usage, and total antioxidant capacity was measured using the FRAP method. The study reports a statistically significant…
The Relationship between Mental Health and Addiction to Mobile Phones among University Students of Shahrekord, Iran.
Research
RF Safe Research Library
Jan 1, 2014
This cross-sectional survey examined associations between mobile phone addiction-related behaviors and mental health symptoms among 296 university students in Shahrekord, Iran. Several mobile phone addiction behavior categories were reported to be significantly inversely correlated with mental health scores. The…
High-frequency hearing loss among mobile phone users.
Research
RF Safe Research Library
Jan 1, 2014
This prospective single-blinded study assessed hearing above 8 kHz among prolonged mobile phone users using high-frequency audiometry. Because few non-users were available, the study compared each participant’s dominant (phone-used) ear with the non-dominant ear, with the audiologist blinded to dominance. The authors…
Assessment of extremely low frequency magnetic field exposure from GSM mobile phones.
Research
RF Safe Research Library
Jan 1, 2014
This paper reports extremely low frequency (ELF) magnetic flux density measurements from 47 GSM mobile phones, collected to support exposure classification in the MOBI-KIDS epidemiological study. At 25 mm, maximum resultant magnetic flux density at 217 Hz had a geometric mean of 221 nT, and inclusion of harmonics…
Electromagnetic Radiofrequency Radiation Emitted from GSM Mobile Phones Decreases the Accuracy of Home Blood Glucose Monitors.
Research
RF Safe Research Library
Jan 1, 2014
This study tested whether radiofrequency emissions from a ringing GSM mobile phone affect home blood glucose monitor readings. Among 45 female nondiabetic students, the group measured in the presence vs absence of a ringing phone showed larger changes between two readings than a repeat-measurement control group…
Multifocal Breast Cancer in Young Women with Prolonged Contact between Their Breasts and Their Cellular Phones
Research
RF Safe Research Library
Jan 1, 2013
This 2013 case series describes four young women (ages 21–39) with multifocal invasive breast cancer who reportedly carried smartphones directly against their breasts in their brassieres for prolonged periods over several years. Tumors were reported to occur in areas immediately underlying phone contact, with imaging…
Study on effective improvement of mobile phone sound quality in a noise environment for the hearing-impaired.
Research
RF Safe Research Library
Jan 1, 2013
This study evaluated whether the NAL-NL1 hearing-aid fitting formula is appropriate for hearing-impaired mobile communication, comparing it with a modified fitting formula. Speech materials were low-pass filtered at 8 kHz and presented through a mobile phone for word-recognition testing in quiet and noisy conditions.…
Specific absorption rate variation in a brain phantom due to exposure by a 3G mobile phone: problems in dosimetry.
Research
RF Safe Research Library
Jan 1, 2013
This paper describes a SAR measurement system for a 3G mobile phone (1718.5 MHz) using brain phantom material in a Perspex box sized to a small rat volume, with induced fields measured at multiple locations. SAR was computed from induced-field measurements and also estimated experimentally via temperature rise, with…
Epidemiological characteristics of mobile phone ownership and use in korean children and adolescents.
Research
RF Safe Research Library
Jan 1, 2013
This cross-sectional analysis used three Korean databases (2008–2011; n=21,693) to describe mobile phone ownership and use among children and adolescents and how these patterns vary by socioeconomic position. Ownership and use were higher among females, older students, and in 2011 compared with 2008, and the age of…
Prenatal and Postnatal Cell Phone Exposures and Headaches in Children.
Research
RF Safe Research Library
Jan 1, 2012
This cohort analysis from the Danish National Birth Cohort examined whether prenatal and/or postnatal cell phone exposure was associated with headaches in children at age seven. Using maternal questionnaire data for 52,680 children, the study reports higher odds of migraines and headache-related symptoms among…
Effects of radiofrequency radiation on human ferritin: an in vitro enzymun assay.
Research
RF Safe Research Library
Jan 1, 2012
This in vitro study tested whether 900 MHz GSM mobile phone radiation affects ferritin measurements in human serum wells. Exposed wells (30 minutes, speech-mode phone) showed a statistically significant decrease in ferritin compared with unexposed controls. The authors propose RF exposure may influence…
Effect of 60 minutes exposure to electromagnetic field on fecundity, learning and memory, speed of movement and whole body protein of the fruit fly Drosophila melanogaster.
Research
RF Safe Research Library
Jan 1, 2012
This animal study exposed Drosophila melanogaster to EMF from four electrical devices for 60 minutes and assessed fecundity, larval behavior, and protein patterns. The authors report no significant effect on adult fecundity, but report changes in larval learning/memory and movement speed, with the largest effects in…
Human keratinocytes in culture exhibit no response when exposed to short duration, low amplitude, high frequency (900 MHz) electromagnetic fields in a reverberation chamber.
Research
RF Safe Research Library
Jan 1, 2011
This in vitro study exposed normal human epidermal keratinocytes to non-thermal 900 MHz electromagnetic fields in a mode-stirred reverberation chamber under two short-duration conditions. Microarray analysis found only limited gene modulation (20 genes) with small expression ratios and no shared genes across…
Pedestrians, vehicles, and cell phones.
Research
RF Safe Research Library
Jan 1, 2010
This study used an immersive virtual environment to examine how divided attention affects pedestrian street-crossing performance. Thirty-six participants crossed virtual streets while undistracted, conversing hands-free on a cell phone, or listening to music. Cell phone conversation was associated with a lower…
Cell phones and brain tumors: a review including the long-term epidemiologic data
Research
RF Safe Research Library
Jan 1, 2009
This paper presents a meta-analysis of 11 peer-reviewed epidemiologic studies examining long-term (>=10 years) cell phone use with laterality analyses. It reports that long-term use is associated with an approximately doubled risk of an ipsilateral brain tumor. The abstract states statistical significance for glioma…
Parenting by cell phone: parental monitoring of adolescents and family relations.
Research
RF Safe Research Library
Jan 1, 2009
This cross-sectional questionnaire study of 196 parent–adolescent dyads examined how cell phone calling patterns relate to perceptions of truthfulness, parental knowledge, and family relationships. More frequent parental calling was associated with lower perceived truthfulness, and calls made when upset were linked…
Survey of ownership and use of mobile phones among medical science students in Yazd.
Research
RF Safe Research Library
Jan 1, 2009
This cross-sectional survey assessed mobile phone ownership and use patterns among 309 medical science students in Yazd using a self-administered questionnaire. The abstract reports descriptive statistics on daily talking time, music listening, texting, and common locations of phone use. While the paper references…
Effects of mobile phone use on specific intensive care unit devices.
Research
RF Safe Research Library
Jan 1, 2008
This study tested electromagnetic interference from GSM and CDMA mobile phones placed one foot from ICU devices (syringe pump, mechanical ventilator, bedside monitor) in off, standby, and talk modes. EMI was observed for the syringe pump in talk mode, with a mean 2.66 ml variation between calculated and delivered…
The effect of GSM-like ELF radiation on the alpha band of the human resting EEG.
Research
RF Safe Research Library
Jan 1, 2008
This double-blind, counterbalanced cross-over study investigated whether extremely low frequency (DC to at least 40 kHz) fields emitted by GSM handsets affect resting EEG. In 72 healthy volunteers, the authors report a decrease in the alpha band during 20 minutes of ELF exposure in the exposed hemisphere only. They…
Effects of electromagnetic field produced by mobile phones on the oxidant and antioxidant status of rats.
Research
RF Safe Research Library
Jan 1, 2007
This rat study examined whether EMR from GSM mobile phones affects oxidant/antioxidant status. Compared with controls, exposed rats had lower plasma antioxidant vitamins (C, E, A), reduced glutathione, and lower CAT and SOD activities. The acute exposure condition was reported to produce larger decreases than the…
Comparison of the effects of continuous and pulsed mobile phone like RF exposure on the human EEG.
Research
RF Safe Research Library
Jan 1, 2007
This study tested whether GSM-like RF exposure affects resting human EEG, focusing on alpha band power and non-linear EEG features. Using a fully counterbalanced cross-over design with 12 participants and a dipole antenna intended to better resemble handset exposure, the authors found no changes after 15 minutes of…
[Acute ear trauma caused by failure of mobile phone/cellular phone].
Research
RF Safe Research Library
Jan 1, 2007
This case report describes acute acoustic and burn ear trauma associated with an apparent mobile phone failure during use. The patient had an external auditory canal burn and transient hearing loss, with tinnitus that persisted for weeks but resolved by one month. The authors state that the case suggests mobile phone…
Mobile phone use and cancer
Research
RF Safe Research Library
Jan 1, 2004
This narrative review discusses potential public health consequences of widespread mobile phone use and the controversy around long-term cancer risks. It states that evidence from epidemiological and experimental studies suggests long-term exposure to mobile phone emissions may be linked to a small to moderate…