RT Journal Article SR Electronic T1 Effects of Subchronic Exposure to a 1439 MHz Electromagnetic Field on the Microcirculatory Parameters in Rat Brain JF In Vivo JO In Vivo FD International Institute of Anticancer Research SP 563 OP 570 VO 21 IS 4 A1 MASUDA, HIROSHI A1 USHIYAMA, AKIRA A1 HIROTA, SHOGO A1 WAKE, KANAKO A1 WATANABE, SOICHI A1 YAMANAKA, YUKIO A1 TAKI, MASAO A1 OHKUBO, CHIYOJI YR 2007 UL http://iv.iiarjournals.org/content/21/4/563.abstract AB The aim of this study was to investigate whether repeated exposure to radio frequency electromagnetic field (RF-EMF) of 1439 MHz affects the cerebral microcirculation, including blood-brain barrier function, in a rat brain. Materials and Methods: The head of the rat was exposed for four weeks (60 min/day, 5 days/week) to RF-EMF at 2.4 W/kg of brain averaged specific absorption rate (BASAR). Three microcirculatory parameters: blood-brain barrier permeability, leukocyte behavior and plasma velocity were measured before and after RF-EMF exposure using a closed cranial window method. Results: No extravasation of intravenously injected dyes from pial venules was found at any BASAR level. No significant changes in the number of endothelial-adhering leukocytes after exposure were found. The plasma velocity remained constant within the physiological range through each exposure. Conclusion: These findings suggest that there were no effects on the cerebral microcirculation under the given RF-EMF exposure conditions. Copyright © 2007 International Institute of Anticancer Research (Dr. John G. Delinassios), All rights reserved