The output of a GSM900 test mobile phone was connected by coaxial cable to a TEM cell which has been described previously in the reference article. In principle, this is a spliced coaxial cable with a central electrode and an outer shield electrode with the unique characteristic of having both linearamplitude and phase response versus frequency and allowing relatively homogeneous exposures of samples.
Rats were not restrained during exposure inside the TEM cell. The power of the test phone was kept constant at 33 dBm (2 W) and monitored online using a power meter.
Sham exposures were performed in the same TEM cell with MW power off. The order of four independent MW and sham exposures was randomized among sessions on four consecutive days.
The SAR value was determined both by measurements and by calculations: Incident, reflected and transmitted powers were measured for an input power of 1 W using a power meter and a coaxial directional coupler. The absorbed power was then calculated and the average whole body SAR was determined showing very small variations of average whole body SAR for rats of different sizes. Numerical calculations were performed using the FDTD method. The SAR in the brains of rats was found to vary less than four-fold from the average value of 0.4 mW/g in the numerical rat shaped phantom at different positions inside the TEM cell. The calculated SAR values were in good agreement with the measured ones.
Nittby H et al.
Exposure to radiation from global system for mobile communications at 1,800 MHz significantly changes gene expression in rat hippocampus and cortex.
Reducing the in-vitro electromagnetic field effect of cellular phones on human DNA and the intensity of their emitted radiation.
Zhao R et al.
Studying gene expression profile of rat neuron exposed to 1800 MHz radiofrequency electromagnetic fields with cDNA microassay.
Zhao TY et al.
Exposure to cell phone radiation up-regulates apoptosis genes in primary cultures of neurons and astrocytes.
Chauhan V et al.
Analysis of gene expression in two human-derived cell lines exposed in vitro to a 1.9 GHz pulse-modulated radiofrequency field.
Qutob SS et al.
Microarray gene expression profiling of a human glioblastoma cell line exposed in vitro to a 1.9 GHz pulse-modulated radiofrequency field.
Whitehead TD et al.
The number of genes changing expression after chronic exposure to Code Division Multiple Access or Frequency DMA radiofrequency radiation does not exceed the false-positive rate.
Zeng Q et al.
Effects of global system for mobile communications 1800 MHz radiofrequency electromagnetic fields on gene and protein expression in MCF-7 cells.
Nylund R et al.
Mobile phone radiation causes changes in gene and protein expression in human endothelial cell lines and the response seems to be genome- and proteome-dependent.
Pacini S et al.
Exposure to global system for mobile communication (GSM) cellular phone radiofrequency alters gene expression, proliferation, and morphology of human skin fibroblasts.
Goswami PC et al.
Proto-oncogene mRNA levels and activities of multiple transcription factors in C3H 10T 1/2 murine embryonic fibroblasts exposed to 835.62 and 847.74 MHz cellular phone communication frequency radiation.
Lai H et al.
Melatonin and a spin-trap compound block radiofrequency electromagnetic radiation-induced DNA strand breaks in rat brain cells.
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