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Ultrawideband radiation and pentylenetetrazol‐induced convulsions in rats
Author(s) -
Miller Stephanie A.,
Bronson Maureen E.,
Murphy Michael R.
Publication year - 1999
Publication title -
bioelectromagnetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.435
H-Index - 81
eISSN - 1521-186X
pISSN - 0197-8462
DOI - 10.1002/(sici)1521-186x(1999)20:5<327::aid-bem9>3.0.co;2-e
Subject(s) - pentylenetetrazol , convulsant , medicine , seizure threshold , electromagnetic pulse , bioelectromagnetics , pharmacology , neuroscience , physics , epilepsy , anticonvulsant , biology , electromagnetic field , optics , psychiatry , receptor , quantum mechanics
New non‐ionizing pulsed systems using ultrawideband (UWB) require safety assessment before they can be used by either military or civilian communities. The development of directed energy weaponry intended for use against electronically vulnerable targets, as well as ground‐probing radar systems, have used fast‐rise‐time high‐peak‐power electromagnetic pulses characteristic of UWB emitters. It has been postulated that these ultrashort pulses might produce electromagnetic transients resulting in tissue damage. Several challenges to this notion have been posed, however. One report found that rats exposed to UWB after receiving a convulsant drug tended toward longer latency to the onset of convulsions than the no‐exposure group. Although not statistically significant, the presence of this trend prompted the present study. An ED 99 dose of the convulsant pentylenetetrazol (PTZ) or saline was given just before UWB or sham exposure and resultant seizure activity was recorded. The data from the current study show no effect of UWB exposure on PTZ‐induced seizure activity, thereby not supporting the tissue damage concerns, at least for the exposure parameters used here. Bioelectromagnetics 20:327–329, 1999. Published 1999 Wiley‐Liss, Inc.