Main Title |
Role for the Magnetic Field in the Radiation-Induced Efflux of Calcium Ions from Brain Tissue 'In vitro'. |
Author |
Blackman, C. F. ;
Benane, S. G. ;
Rabinowitz, J. R. ;
House, D. E. ;
Joines, W. T. ;
|
CORP Author |
Health Effects Research Lab., Research Triangle Park, NC. |
Year Published |
1985 |
Report Number |
EPA/600/J-85/345; |
Stock Number |
PB86-175403 |
Additional Subjects |
Central nervous system ;
Magnetic fields ;
Brain ;
Tissues(Biology) ;
In vitro analysis ;
Reprints ;
Calcium ions
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB86-175403 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
13p |
Abstract |
Two independent laboratories have demonstrated that specific frequencies of electromagnetic radiation can cause a change in the efflux of calcium ions from brain tissue in vitro. Under a static magnetic field intensity of 38 microTesla (microT) due to the earth's magnetic field, 15- and 45-Hz electromagnetic signals (40 Vp-p/m in air) have been shown to induce a change in the efflux of calcium ions from the exposed tissues, while 1- and 30-Hz signals do not. The authors now show that the effective 15-Hz signal can be rendered ineffective when the net static magnetic field is reduced to 19 microT with Helmholtz coils. In addition, the ineffective 30-Hz signal becomes effective when the static magnetic field is changed to + or - 25.3 microT or to + or - 76 microT. These results demonstrate that the net intensity of the static magnetic field is an important variable. The results appear to describe a resonance-like relationship in which the extremely-low-frequency electromagnetic field that can induce a change in efflux is proportional to a product of the net magnetic field intensity and an index, 2n+1, where n=0,1. |
Supplementary Notes |
Pub. in Bioelectromagnetics 6, n4 p327-337 Dec 85. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Role for the Magnetic Field in the Radiation-Induced Efflux of Calcium Ions from Brain Tissue 'In vitro'. |
PUB Date Free Form |
c1985 |
Category Codes |
6R; 57V |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/11 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
614222670 |
Origin |
NTIS |
Type |
CAT |