Radiation Protection

EMR Literature Survey - January 2009

FEATURE ARTICLE:
Mobile Phone Use and Risk of Uveal Melanoma: Results of the Risk Factors for Uveal Melanoma Case-Control Study

By: Stang A et al
Published in: J Natl Cancer Inst 2009;101(2):120-3.

Summary

This German case-control study investigated the association between mobile phone use and risk of uveal melanoma. The investigators recruited 459 uveal melanoma case patients and matched 455 case patients with 827 population control subjects, 133 with 180 ophthalmologist control subjects, and 187 with 187 sibling control subjects. Mobile phone use was assessed using a questionnaire. Risk of uveal melanoma was not associated with regular mobile phone use (OR = 0.7, 95% CI = 0.5-1.0 using population control subjects; OR = 1.1, 95% CI = 0.6-2.3 using ophthalmologist control subjects; and OR = 1.2, 95% CI = 0.5 to 2.6 using sibling control subjects), and there was no trend for cumulative measures of exposure. The current findings override an earlier report by the same authors that showed an increased risk of uveal melanoma among regular mobile phone users.

PUBMED LINK

A copy of this article is available at: http://jnci.oxfordjournals.org/cgi/reprint/101/2/120


Mobiles phones and health

By: Olsen Jl
Published in: Scand J Public Health. 2009;37(1):1-3.

Summary

In this editorial the author provides an opinion on the issue of mobile phone use and health. The author states that no documented health effects have been linked with any degree of certainty to mobile phone exposure. However given its widespread use the author recommends further research using cohort studies, especially in relation to use by children.

PUBMED LINK


Effects of Radiofrequency Electromagnetic Fields (UMTS) on Reproduction and Development of Mice: A Multi-generation Study

By: Sommer AM et al
Published in: Radiat Res. 2009;171(1):89-95

Summary

In this study male and female mice were chronically exposed (24 h/day, lifetime exposure) to mobile phone (UMTS) electromagnetic fields. Reproduction and development were monitored over four generations by investigating histological, physiological, reproductive and behavioral functions. The results show no harmful effects of long-term exposure to UMTS on the fertility and development of the animals over several generations.

PUBMED LINK


Physiological effects of RF exposure on hypersensitive people by a cell phone

By: Kim DW et al
Published in: Conf Proc IEEE Eng Med Biol Soc. 2008;1:2322-5

Summary

Provocation study investigating electromagnetic hypersensitivity (EHS) resulting from radio frequency (RF) radiation by cellular phones. In the study, two volunteer groups of 18 people with self-declared EHS and 19 controls were exposed to both sham and real RF exposures by a CDMA cellular phone for half an hour each. Physiological parameters such as heart rate, respiration rate, and heart rate variability (HRV) were investigated. The authors conclude that the RF exposure by a CDMA cellular phone did not have any effect on the physiological parameters for either group.

PUBMED LINK


Mobile phone base stations and adverse health effects: phase 2 of a cross-sectional study with measured radio frequency electromagnetic fields

By: Berg-Beckhoff G et al
Published in: Occup Environ Med 2009; 66 (2): 124 – 130

Summary

Cross-sectional study investigating the possible association between exposure to continuous low-level radio frequency electromagnetic fields (RF-EMFs) emitted from mobile phone base stations and various health disturbances. Participants answered a postal questionnaire on how mobile phone base stations affected their health and they gave information on sleep disturbances, headaches, health complaints and mental and physical health using standardised health questionnaires. Information on stress was also collected. Exposure to different RF-EMF frequencies was measured using a dosimeter. The authors conclude that in this large population-based study, measured RF-EMFs emitted from mobile phone base stations were not associated with adverse health effects.

PUBMED LINK


Assessment of induced radio-frequency electromagnetic fields in various anatomical human body models

By: Kuhn et al
Published in: Phys Med Biol. 2009 ;54(4):875-90

Summary

Dosimetry study validating the adequacy of reference levels in testing compliance of human exposure to radio-frequency safety limits. The authors investigate the absorption characteristics for various anatomies ranging from 6 year old child to large adult male by numerical modelling. The authors conclude that the results suggest that the reference levels of current electromagnetic safety guidelines for demonstrating compliance as well as some of the current measurement standards are not consistent with the basic restrictions and need to be revised.

PUBMED LINK


Mobile phone use and location of glioma: A case-case analysis

By: Hartikka H et al
Published in: Bioelectromagnetics 2009 [epub ahead of print]

Summary

In this epidemiological study the authors assess the glioma risk among users of mobile phones by focusing on the part of the brain most heavily exposed to radiofrequency electromagnetic fields. A case–case analysis with 99 patients with glioma was performed using logistic regression. Modestly elevated odds ratios that were generally not statistically significant were observed for several indicators of mobile phone use, but without an exposure gradient. The authors report that detailed information on tumour location allows evaluation of the risk related to the most heavily exposed part of the brain, representing direct evaluation of the possible local carcinogenic effects of the radiofrequency fields. However, field strength varies between users and over time also within a given anatomic site, due to the output power of the phone. The authors also indicate that collaborative analysis of a larger sample is planned.

PUBMED LINK

A copy of this paper is available at: http://www3.interscience.wiley.com/cgi-bin/fulltext/121637238/PDFSTART


Effect of brain magnetic resonance imaging on body core temperature in sedated infants and children

By: Machata AM et al
Published in: Br J Anaesth 2009 [Epub ahead of print]

Summary

Study investigating whether children undergoing magnetic resonance imaging (MRI) under sedation are at risk of hypo- or hyperthermia. Two groups of 38 infants and children (aged 1 month to 6 yr 5 months) underwent brain MRI for different indications related to cerebral diseases, at 1.5 Tesla (T) and 3 T MRI units, respectively. All patients were deeply sedated during the procedure. The authors report that body core temperature increased significantly during 1.5 and 3 T examinations; this increase was more profound during 3 T MRI.

PUBMED LINK

A copy of this article is available at: http://bja.oxfordjournals.org/cgi/reprint/aen388v1

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