You need JavaScript to view this

Neurophysiological appropriateness of ionizing radiation effects

Abstract

The goal of this study was to compare bioelectrical activity of the brain in remote period of acute radiation sickness (ARS), chronic and prenatal irradiation as a result of the Chernobyl disaster. Registration of computerized 19-channel EEG, visual and somato-sensory evoked potentials have been carried out for 70 patients who had a verified ARS, 100 Chernobyl disaster survivors, who have been working in the Chernobyl exclusion zone since 1986-87 during 5 and more years, 50 prenatally irradiated children, and relevant controls. The relative risks of neurophysiological abnormalities are 4.5 for the ARS-patients, 3.6 for the chronically irradiated persons and 3.7 for the prenatally irradiated children. The data obtained testify to possibility of radiation-induced neurophysiological abnormalities in examined Chernobyl accident survivors which seems to be non-stochastic effects of ionizing radiation. For all examined irradiated patients it was typically an increasing of {delta}- and {beta}- powers of EEG, particularly, in the frontal lobe shifted to the left fronto-temporal region, but spectral power of both {theta}- and {alpha}-range was significantly depressed. Aforesaid signs together with data of evoked potentials reflect the structural and functional abnormalities of limbic system and the left hemisphere as the first revealed neurophysiological appropriateness of ionizing radiation effects. (author).  More>>
Authors:
Nyagu, A I; Loganovsky, K N [1] 
  1. Department of Neurology, Inst. of Clinical Radiology, Scientific Centre for Radiation Medicine of Academy of Medical Sciences of Ukraine, Kiev (Ukraine)
Publication Date:
Nov 01, 1997
Product Type:
Conference
Report Number:
IAEA-TECDOC-976; CONF-971123-
Reference Number:
SCA: 560151; 560161; PA: AIX-29:017350; EDB-98:055046; SN: 98001951447
Resource Relation:
Conference: International conference on low doses of ionizing radiation: biological effects and regulatory control, Seville (Spain), 17-21 Nov 1997; Other Information: DN: 25 refs.; PBD: Nov 1997; Related Information: Is Part Of Low doses of ionizing radiation: Biological effects and regulatory control. Contributed papers; PB: 696 p.
Subject:
56 BIOLOGY AND MEDICINE, APPLIED STUDIES; ACUTE EXPOSURE; ACUTE IRRADIATION; BIOLOGICAL RADIATION EFFECTS; CHERNOBYLSK-4 REACTOR; LOW DOSE IRRADIATION; NERVE CELLS; NERVOUS SYSTEM DISEASES; PATIENTS; REACTOR ACCIDENTS; UKRAINE
OSTI ID:
592999
Research Organizations:
International Atomic Energy Agency, Vienna (Austria); World Health Organization, Geneva (Switzerland); United Nations Scientific Committee on the Effects of Atomic Radiation, Vienna (Austria).
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 1011-4289; Other: ON: DE98618151; TRN: XA9745607017350
Availability:
INIS; OSTI as DE98618151
Submitting Site:
INIS
Size:
pp. 261-264
Announcement Date:
Jun 03, 1998

Citation Formats

Nyagu, A I, and Loganovsky, K N. Neurophysiological appropriateness of ionizing radiation effects. IAEA: N. p., 1997. Web.
Nyagu, A I, & Loganovsky, K N. Neurophysiological appropriateness of ionizing radiation effects. IAEA.
Nyagu, A I, and Loganovsky, K N. 1997. "Neurophysiological appropriateness of ionizing radiation effects." IAEA.
@misc{etde_592999,
title = {Neurophysiological appropriateness of ionizing radiation effects}
author = {Nyagu, A I, and Loganovsky, K N}
abstractNote = {The goal of this study was to compare bioelectrical activity of the brain in remote period of acute radiation sickness (ARS), chronic and prenatal irradiation as a result of the Chernobyl disaster. Registration of computerized 19-channel EEG, visual and somato-sensory evoked potentials have been carried out for 70 patients who had a verified ARS, 100 Chernobyl disaster survivors, who have been working in the Chernobyl exclusion zone since 1986-87 during 5 and more years, 50 prenatally irradiated children, and relevant controls. The relative risks of neurophysiological abnormalities are 4.5 for the ARS-patients, 3.6 for the chronically irradiated persons and 3.7 for the prenatally irradiated children. The data obtained testify to possibility of radiation-induced neurophysiological abnormalities in examined Chernobyl accident survivors which seems to be non-stochastic effects of ionizing radiation. For all examined irradiated patients it was typically an increasing of {delta}- and {beta}- powers of EEG, particularly, in the frontal lobe shifted to the left fronto-temporal region, but spectral power of both {theta}- and {alpha}-range was significantly depressed. Aforesaid signs together with data of evoked potentials reflect the structural and functional abnormalities of limbic system and the left hemisphere as the first revealed neurophysiological appropriateness of ionizing radiation effects. (author). 25 refs.}
place = {IAEA}
year = {1997}
month = {Nov}
}