India: Drie studies, negatieve effecten EMV op vruchtbaarheid en hersenen aangetoond bij ratten.

Bron: Electromagnetic Biology & Medicine 2012 Sep;31(3):223-32.

Impact of Microwave at X-Band in the aetiology of male infertility.

Kumar S, Behari J, Sisodia R.
Bioelectromagnetic Laboratory, School of Environmental Sciences, Jawaharlal Nehru University , New Delhi , India.

Abstract

Reports of declining male fertility have renewed interest in assessing the role of environmental and occupational exposures to electromagnetic fields (EMFs) in the aetiology of human infertility. Testicular functions are particularly susceptible to electromagnetic fields. The aim of the present work was to investigate the effect of 10-GHz EMF on male albino rat's reproductive system and to investigate the possible causative factor for such effect of exposure.

The study was carried out in two groups of 70-day old adult male albino rats: a sham-exposed and a 10-GHz-exposed group (2 h a day for 45 days). Immediately after completion of the exposure, animals were sacrificed and sperms were extracted from the cauda and caput part of testis for the analysis of MDA, melatonin, and creatine kinase.

Creatine kinase results revealed an increased level of phosphorylation that converts creatine to creatine phosphate in sperms after EMF exposure. EMF exposure also reduced the level of melatonin and MDA.

It is concluded that microwave exposure could adversely affect male fertility by reducing availability of the above parameters. These results are indications of deleterious effects of these radiations on reproductive pattern of male rats.

Voor het originele abstract zie:
www.ncbi.nlm.nih.gov/pubmed/22897403?dopt=Abstract .

Bron: Electromagnetic Biology & Medicine 2012 Sep;31(3):213-22.

Evidence for mobile phone radiation exposure effects on reproductive pattern of male rats: Role of ROS.

Kesari KK, Behari J.
Bioelectromagnetic Laboratory, School of Environmental Sciences, Jawaharlal Nehru University , New Delhi , India.

Abstract

The relationship between radiofrequency electromagnetic fields emitted from mobile phone and infertility is a matter of continuing debate. It is postulated that these radiations may affect the reproduction pattern spell by targeting biochemistry of sperm.

In an attempt to expedite the issue, 70 days old Wistar rats (n = 6) were exposed to mobile phone radiofrequency (RF) radiation for 2 h per day for 45 days and data compared with sham exposed (n = 6) group.

A significant decrease (P < 0.05) in the level of testosterone and an increase in caspase-3 activity were found in the RF-exposed animals. Distortions in sperm head and mid piece of sperm mitochondrial sheath were also observed as captured by Transmission Electron Microscope (TEM). In addition, progeny from RF-exposed rats showed significant decreases in number and weight as compared with that of sham-exposed animals. A reduction in testosterone, an increase in caspase-3, and distortion in spermatozoa could be caused by overproduction of reactive oxygen species (ROS) in animals under mobile phone radiation exposure.

Our findings on these biomarkers are clear indications of possible health implications of repeated exposure to mobile phone radiation

Voor het originele abstract zie:
www.ncbi.nlm.nih.gov/pubmed/22897402?dopt=Abstract .

Interessant is ook het onderstaande onderzoek, het betreft echter EMV in een veel hogere frequentieband dan momenteel gebruikt voor mobiele telefonie maar interessant omdat het duidelijk aantoont dat EMV bevorderend kunnen werken m.b.t. hersentumoren:

Bron: Electromagnetic Biology & Medicine. 2012 Sep;31(3):233-42.

Enzymatic alterations in developing rat brain cells exposed to a low-intensity 16.5 GHz microwave radiation.

Paulraj R, Behari J.
Bioelectromagnetic Laboratory, School of Environmental Sciences, Jawaharlal Nehru University , New Delhi , India.

Abstract

The present study deals with the effects of chronic exposure of low-level microwave radiation on developing rat brain.

Starting at 35 days of age, male rats were exposed to 2 h/day for another 35 days to a 16.5-GHz microwave radiation field. After the exposure period, the rats were sacrificed, and brain tissues dissected out and used for biochemical assay.

Results showed that exposure to a 16.5-GHz radiation caused significant changes in the activity of protein kinase C as compared to the control group. Furthermore, electron microscopic study revealed an increase in glial cell population.

These results confirm that brain cell membrane is an interactive site for electromagnetic field causing an inflammation and possibly tumor promotion.

Voor het originele abstract zie:
www.ncbi.nlm.nih.gov/pubmed/22897404?dopt=Abstract .

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