StopUMTS Logo
how to get rid of moles 
Zoeken
   
Voorlichting
18/09/17EHS en toch een smartphon
01/09/17WiFi vrije scholen (kaart
Artikelen
20/09/17IoT 5
20/09/17Harmonische vervorming
20/09/17Vitamin B17: The Greatest
19/09/17Burn-out (toename)
19/09/17Schildklierkanker, toenam
18/09/17What science knows about
Berichten Nederland
28/09/17Nieuw boek: DE DRAADLOZE
20/09/17Ruimte in de ether voor 5
20/09/17De Impact-Academy en onze
18/09/17Vereniging tegen de Kwakz
17/09/17Hoe gevaarlijk is 5G?
Berichten België
01/07/17Verdubbeling burn-out in
26/06/17Voorstel van resolutie vo
Berichten Internationaal
20/09/17USA: nieuwe 5G ellende: D
19/09/17USA: De jongeren van nu g
19/09/17USA: 5G opponents launch
18/09/17SB 649 Passes California
Ervaringen | Appellen/oproepen
18/09/17WiFi 2,4 GHz en 5 GHz; ee
18/09/17''Why I Don't Have a Mobi
14/09/173G naar 4G
Onderzoeken
20/09/17National Toxicology Progr
08/09/17Anxiety-like behavioural
07/09/17The mere presence of your
Veel gestelde vragen
13/05/17Vakantie? Witte zo
10/07/16Zeven veel gestelde vrage
Juridische informatie
19/09/17USA situatie: WOZ waarded
10/09/17Rechter: Staat moet lucht
31/08/17InPower Movement: Early r
Oproepen
29/11/17Raadsmarkt ZENDMASTEN &
11/11/17Cursus ‘Straling meten
29/09/17EHS regionale contactdage
Folders
10/06/17Brochures, folders, websi
29/04/16USA: Meer dan 50 tips voo
Briefwisselingen | Archief: 2008, 2005
10/07/17Brief naar de gemeente C.
14/06/17Mail naar 'De Monitor' na
Illustraties
 Algemeen
 Fotoalbum zendmasten
 Wetenschappelijke illustraties
Overproductie van vrije radicalen door straling    
Ga naar overzicht berichten in: Onderzoeken

Overproductie van vrije radicalen door straling
vrijdag, 20 december 2013 - Dossier: Algemeen


Bron: exp-oncology.com.ua/wp-content/uploads/2013/09/2044.pdf?upload= .
sept. 2013


Experimental Oncology 2013, 35, 3, 219-225

OVERPRODUCTION OF FREE RADICAL SPECIES IN EMBRYONAL
CELLS EXPOSED TO LOW INTENSITY RADIOFREQUENCY RADIATION


A. Burlaka1
, O. Tsybulin2
, E. Sidorik1
, S. Lukin1
, V. Polishuk2
, S. Tsehmistrenko2
, I. Yakymenko1,2* 1
R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology of NAS of Ukraine,
Vasylkivska str. 45, Kyiv 03022, Ukraine 2
Bila Tserkva National Agrarian University, Soborna pl. 8/1, Bila Tserkva 09117, Ukraine

Aim: Long-term exposure of humans to low intensity radiofrequency electromagnetic radiation (RF-EMR) leads to a statistically significant increase in tumor incidence. Mechanisms of such the effects are unclear, but features of oxidative stress in living cells under RF-EMR exposure were previously reported. Our study aims to assess a production of initial free radical species, which lead to oxidative stress in the cell.

Materials and Methods: Embryos of Japanese quails were exposed in ovo to extremely low intensity RF-EMR of GSM 900 MHz (0.25 μW/cm2) during 158–360 h discontinuously (48 c — ON, 12 c — OFF) before and in the initial stages of development. The levels of superoxide (O2·-), nitrogen oxide (NO·), thiobarbituric acid reactive substances (TBARS), 8-oxo-2’-deoxyguanosine (8-oxo-dG) and antioxidant enzymes’ activities were assessed in cells/tissues of 38-h, 5- and 10-day RF-EMR exposed and unexposed embryos.

Results: The exposure resulted in a significant persistent overproduction of superoxide and nitrogen oxide in embryo cells during all period of analyses. As a result, significantly increased levels of TBARS and 8-oxo-dG followed by significantly decreased levels of superoxide dismutase and catalase activities were developed in the exposed embryo cells.

Conclusion: Exposure of developing quail embryos to extremely low intensity RF-EMR of GSM 900 MHz during at least one hundred and fifty-eight hours leads to a significant overproduction of free radicals/reactive oxygen species and oxidative damage of DNA in embryo cells. These oxidative changes may lead to pathologies up to oncogenic transformation of cells.

Key Words: non-ionizing radiation, reactive oxygen species, superoxide, nitrogen oxide, 8-oxo-2’-deoxyguanosine, carcinogenesis.

Voor het volledige artikel zie bovenstaande link.


Ga terug naar het hoofdmenu
Afdrukken | Vragen | RSS | Disclaimer