Turkije: Doorlaatbaarheid van Bloed-Hersenbarriere o.i.v. EMvelden wederom bevestigd.

Bron: Electromagnetic Biolog Med 2009; 28 (2): 215 - 222

Blood-Brain Barrier Disruption by Continuous-Wave Radio Frequency Radiation.

Auteurs: Sirav B, Seyhan N

Aim of study (according to author)
To study the effects of 900 MHz and 1800 MHz continuous wave radiofrequency exposure on the permeability of blood-brain barrier in young adult male and female rats.

Background/further details:
The rats were divided into four exposure groups and two control groups: 1) control males (n=8), 2) control females (n=9), 3) 900 MHz exposed males (n=8), 4) 900 MHz exposed females (n=9), 5) 1800 MHz exposed males (n=9) and 6) 1800 MHz exposed females (n=9).

Endpoint
effects on the neurological system: permeability of blood-brain barrier

Exposure
General category: mobile phone, radio frequency field, CW (continuous wave)

Field characteristics Parameters
900 - 1800 MHz continuous wave (CW)
exposure duration: continuous for 20 min electric field strength: 12.62 V/m

Exposed system:
animal (species/strain): rat/Wistar albino
whole body exposure

effects on the neurological system: permeability of blood-brain barrier (albumin extravasation/Evans blue detection; spectrophotometry)

investigated material: supernatants of tissue homogenates (of left/right cerebrum/cerebellum)
investigated organ system: brain/CNS

time of investigation: after exposure

Main outcome of study (according to author)
The data revealed that 20 min radiofrequency exposure of 900 MHz and 1800 MHz increases significantly the permeability of blood-brain barrier of male rats. There was no change in female rats. However, female control rats exhibited a significant higher blood-brain barrier permeability (similar to those of the exposed rats) than the male control rats.

Voor het originele abstract zie:
www.emf-portal.de/viewer.php?l=e&aid=17230 .



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