No effect of mobile phone‐like RF exposure on patients with atopic dermatitis

Abstract

This study investigates the effect of exposure to a mobile phone-like radiofrequency (RF) electromagnetic field on people with atopic dermatitis (AD). Fifteen subjects with AD were recruited and matched with 15 controls without AD. The subjects were exposed for 30 min to an RF field at 1 W/kg via an indoor base station antenna attached to a 900 MHz GSM mobile phone. Blood samples for ELISA analysis of the concentration of substance P (SP), tumor necrosis factor receptor 1 (TNF R1), and brain derived neurotrophic factor (BDNF) in serum were drawn before and after the provocation (exposure/sham). Baseline heart rate and heart rate variability, local blood flow, and electrodermal activity were also recorded. No significant differences between the subject groups were found for baseline neurophysiological data. The cases displayed a serum concentration of TNF R1 significantly higher than the control subjects and a significantly lower serum concentration of BDNF in the baseline condition. For SP there was no difference between groups. However, no effects related to RF exposure condition were encountered for any of the measured substances. As to symptoms, a possible correlation with exposure could not be evaluated, due to too few symptom reports. The result of the study does not support the hypothesis of an effect of mobile phone-like RF exposure on serum levels of SP, TNF R1, and BDNF in persons with AD.

Effect of long-term exposure to mobile phone radiation on alpha-Int1 gene sequence of Candida albicans

“…The result of the present study is similar to previous studies by other researchers, De Iuliis et al (2009) and also Johansson et al (2008). The researchers have examined different absorption doses and exposure times, and had an emphasis on the major influence of absorption dose and time on the outcome.…”

“…The researchers have examined different absorption doses and exposure times, and had an emphasis on the major influence of absorption dose and time on the outcome. In collection, they concluded that, lower absorption rate and lower exposure time are not associated with any tangible results (De Iuliis et al, 2009, Johansson et al, 2008). Other scientists have noticed the effect of different types of living systems that were exposed to radiation, to explain the controversies of the findings obtained from different studies.…”

Effect of acute exposure to radiofrequency electromagnetic fields emitted by a mobile phone (GSM 900 MHz) on electrodermal responsiveness in healthy human

“…Another study by Johansson et al on people with atopic dermatitis (Johansson et al, 2008) reported no effect of exposure to a mobile phone-like RF in terms of the number of peaks per minute for the EDA.…”

Exposure to acute electromagnetic radiation of mobile phone exposure range alters transiently skin homeostasis of a model of pigmented reconstructed epidermis

“…Johansson et al . after a shorter (30 mn) acute exposure to mobile phone‐like radiofrequency (RF) did not found change in the levels of substance P, TNF R1 and brain neutrophic factor in sera of 15 patients with atopic dermatitis. In our experiments, reconstructed epidermis was exposed a longer period (6 h) to EMR, which may explain why we could observe change in differentiation markers.…”

“…Kimata [27][28][29] has reported that acute exposure to microwave from mobile phones (1 h) enhances allergic skin wheal responses in patients with atopic eczema/dermatitis syndrome by increasing allergen specific IgE, substance P and vasoactive intestinal peptide production. Johansson et al [30] after a shorter (30 mn) acute exposure to mobile phone-like radiofrequency (RF) did not found change in the levels of substance P, TNF R1 and brain neutrophic factor in sera of 15 patients with atopic dermatitis. In our experiments, reconstructed epidermis was exposed a longer period (6 h) to EMR, which may explain why we could observe change in differentiation markers.…”