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Radiosensitivity of amphibia

Journal Article:

Abstract

Radiosensitivity (semi-lethal dose) and the damages of radiation in the amphibia were studied by /sup 3/H-TdR from the standpoint of cellular kinetics. The cell mitosis cycle of the amphibia required a long time. The functional cell regeneration and the physiological function of the cell were slower than in mice. The reason for the low radiosensitivity of the amphibia was discussed relative to the environmental factor of temperature. Because the amphibia change body temperature according to environmental temperature, the danger of radiation damage, the actual lethal dose and the period of survival were influenced by the environmental temperature. Acute radiation danger to amphibia was essentially the same as the danger to mammalia, both young and old. LD/sub 50/ irradiation effects varied among the species. The cell regeneration, turn over, and the mitosis in the amphibia, were affected by environmental temperature, however, the courses proceeded slower than those of the mammalia. Therefore, the question remains, whether the comparison of the radiosensitivities of amphibia with other classes of animal by LDsub(50/30) irradiation was appropriate.
Authors:
Muramatsu, S [1] 
  1. National Inst. of Radiological Sciences, Chiba (Japan)
Publication Date:
Apr 01, 1975
Product Type:
Journal Article
Reference Number:
AIX-07-248477; EDB-76-076985
Resource Relation:
Journal Name: Hoshasen Kagaku; (Japan); Journal Volume: 18:4
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; FROGS; RADIOSENSITIVITY; TEMPERATURE DEPENDENCE; CELL CYCLE; DNA REPLICATION; DOSE-RESPONSE RELATIONSHIPS; EARLY RADIATION EFFECTS; IRRADIATION; LETHAL RADIATION DOSE; SALAMANDERS; SURVIVAL CURVES; TIME DEPENDENCE; X RADIATION; AMPHIBIANS; ANIMALS; AQUATIC ORGANISMS; BIOLOGICAL EFFECTS; BIOLOGICAL RADIATION EFFECTS; DOSES; ELECTROMAGNETIC RADIATION; IONIZING RADIATIONS; LETHAL DOSES; NUCLEIC ACID REPLICATION; RADIATION DOSES; RADIATION EFFECTS; RADIATIONS; VERTEBRATES; 560152* - Radiation Effects on Animals- Animals
OSTI ID:
7179008
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: CODEN: HOKAA
Submitting Site:
INIS
Size:
Pages: 61-64
Announcement Date:

Journal Article:

Citation Formats

Muramatsu, S. Radiosensitivity of amphibia. Japan: N. p., 1975. Web.
Muramatsu, S. Radiosensitivity of amphibia. Japan.
Muramatsu, S. 1975. "Radiosensitivity of amphibia." Japan.
@misc{etde_7179008,
title = {Radiosensitivity of amphibia}
author = {Muramatsu, S}
abstractNote = {Radiosensitivity (semi-lethal dose) and the damages of radiation in the amphibia were studied by /sup 3/H-TdR from the standpoint of cellular kinetics. The cell mitosis cycle of the amphibia required a long time. The functional cell regeneration and the physiological function of the cell were slower than in mice. The reason for the low radiosensitivity of the amphibia was discussed relative to the environmental factor of temperature. Because the amphibia change body temperature according to environmental temperature, the danger of radiation damage, the actual lethal dose and the period of survival were influenced by the environmental temperature. Acute radiation danger to amphibia was essentially the same as the danger to mammalia, both young and old. LD/sub 50/ irradiation effects varied among the species. The cell regeneration, turn over, and the mitosis in the amphibia, were affected by environmental temperature, however, the courses proceeded slower than those of the mammalia. Therefore, the question remains, whether the comparison of the radiosensitivities of amphibia with other classes of animal by LDsub(50/30) irradiation was appropriate.}
journal = {Hoshasen Kagaku; (Japan)}
volume = {18:4}
journal type = {AC}
place = {Japan}
year = {1975}
month = {Apr}
}