Pathophysiology. 2009 Aug;16(2-3):103-12. Epub 2009 Apr 2.

Nittby H, Brun A, Eberhardt J, Malmgren L, Persson BR, Salford LG.

Department of Neurosurgery, Lund University, The Rausing Laboratory and Lund University Hospital, S-22185, Lund, Sweden.

Microwaves were for the first time produced by humans in 1886 when radio waves were broadcasted and received. Until then microwaves had only existed as a part of the cosmic background radiation since the birth of universe. By the following utilization of microwaves in telegraph communication, radars, television and above all, in the modern mobile phone technology, mankind is today exposed to microwaves at a level up to 10(20) times the original background radiation since the birth of universe. Our group has earlier shown that the electromagnetic radiation emitted by mobile phones alters the permeability of the blood-brain barrier (BBB), resulting in albumin extravasation immediately and 14 days after 2h of exposure. In the background section of this report, we present a thorough review of the literature on the demonstrated effects (or lack of effects) of microwave exposure upon the BBB. Furthermore, we have continued our own studies by investigating the effects of GSM mobile phone radiation upon the blood-brain barrier permeability of rats 7 days after one occasion of 2h of exposure. Forty-eight rats were exposed in TEM-cells for 2h at non-thermal specific absorption rates (SARs) of 0mW/kg, 0.12mW/kg, 1.2mW/kg, 12mW/kg and 120mW/kg. Albumin extravasation over the BBB, neuronal albumin uptake and neuronal damage were assessed. Albumin extravasation was enhanced in the mobile phone exposed rats as compared to sham controls after this 7-day recovery period (Fisher's exact probability test, p=0.04 and Kruskal-Wallis, p=0.012), at the SAR-value of 12mW/kg (Mann-Whitney, p=0.007) and with a trend of increased albumin extravasation also at the SAR-values of 0.12mW/kg and 120mW/kg. There was a low, but significant correlation between the exposure level (SAR-value) and occurrence of focal albumin extravasation (r(s)=0.33; p=0.04). The present findings are in agreement with our earlier studies where we have seen increased BBB permeability immediately and 14 days after exposure. We here discuss the present findings as well as the previous results of altered BBB permeability from our and other laboratories.

PMID: 19345073 [PubMed - in process]

http://tinyurl.com/l643ef

 

Informant: Dorothee Krien

 

http://omega.twoday.net/search?q=electromagnetic+radiation
http://omega.twoday.net/search?q=microwaves
http://omega.twoday.net/search?q=900-MHz
http://omega.twoday.net/search?q=rats
http://omega.twoday.net/search?q=blood+barrier
http://omega.twoday.net/search?q=permeability
http://omega.twoday.net/search?q=Malmgren
http://omega.twoday.net/search?q=Persson
http://omega.twoday.net/search?q=Salford

Oral Dis. 2009 Sep 8. [Epub ahead of print]

Goldwein O, Aframian DJ.

Salivary Gland Clinic, Saliva Diagnostic Laboratory, Department of Oral Medicine, Faculty of Dental Medicine, Hebrew University-Hadassah School of Dental Medicine, Jerusalem, Israel.

Oral Diseases (2009) DOI: 10.1111/j.1601-0825.2009.01620.xBackground: Handheld mobile phones (MPHs) have become a 'cultural' accessory device, no less so than a wrist watch. Nevertheless, the use of MPHs has given rise to great concern because of possible adverse health effects from exposure to the radiofrequency radiation (RFR) emitted by the device. Previous studies suggested correlation between MPH and salivary gland tumors.

Objective: To evaluate whether MPH induces physiologic changes in the adjacent parotid gland, located on the dominant side, in terms of secretion rates and protein levels in the secreted saliva. Materials and method: Stimulated parotid saliva was collected simultaneously from both glands in 50 healthy volunteers whose MPH use was on a dominant side of the head.

Results: A significantly higher saliva secretion rate was noticed in the dominant MPH side compared with that in the non-dominant side. Lower total protein concentration was obtained in the dominant compared with the non-dominant MPH side among the right dominant MPH users.

Conclusions: Parotid glands adjacent to handheld MPH in use respond by elevated salivary rates and decreased protein secretion reflecting the continuous insult to the glands. This phenomenon should be revealed to the worldwide population and further exploration by means of large-scale longitudinal studies is warranted.

http://www.ncbi.nlm.nih.gov/pubmed/19744173?dopt=Abstract


PMID: 19744173 [PubMed - as supplied by publisher]

 

http://omega.twoday.net/search?q=parotid+gland

19.09.2009

Mobilfunkstrahlung: Wissenschaftliche Rezension ueber Krebsrisiken und die Gesundheit von Kindern

http://www.diagnose-funk.org/gesundheit/risikowahrnehmung/ewg-wissenschaftliche-rezension-ueber-krebsrisiken.html

 

http://omega.twoday.net/search?q=Mobilfunkstrahlung
http://omega.twoday.net/search?q=Krebsrisik